U.S. patent application number 15/137164 was filed with the patent office on 2016-08-18 for tissue repair devices.
The applicant listed for this patent is Smith & Nephew, Inc.. Invention is credited to Roland Francis Gatturna, Mark Edwin Housman, Matthew Edwin Koski, Richard M. Lunn, Linh Tuong Nguyen, David A. Paulk, Paul Steven Vincuilla.
Application Number | 20160235398 15/137164 |
Document ID | / |
Family ID | 43536392 |
Filed Date | 2016-08-18 |
United States Patent
Application |
20160235398 |
Kind Code |
A1 |
Nguyen; Linh Tuong ; et
al. |
August 18, 2016 |
Tissue Repair Devices
Abstract
The present disclosure relates to an anchor assembly. The anchor
assembly includes an anchor defining a cavity and an opening to the
cavity and an insertion member configured for arrangement within
the anchor cavity. Other anchor assemblies, anchors, and delivery
devices are also disclosed.
Inventors: |
Nguyen; Linh Tuong;
(Randolph, MA) ; Lunn; Richard M.; (Kingston,
MA) ; Koski; Matthew Edwin; (Westford, MA) ;
Housman; Mark Edwin; (North Attleboro, MA) ;
Vincuilla; Paul Steven; (Brockton, MA) ; Gatturna;
Roland Francis; (East Bridgewater, MA) ; Paulk; David
A.; (Hopedale, MA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Smith & Nephew, Inc. |
Memphis |
TN |
US |
|
|
Family ID: |
43536392 |
Appl. No.: |
15/137164 |
Filed: |
April 25, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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12943086 |
Nov 10, 2010 |
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15137164 |
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61259737 |
Nov 10, 2009 |
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61259739 |
Nov 10, 2009 |
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61290695 |
Dec 29, 2009 |
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61312481 |
Mar 10, 2010 |
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61334221 |
May 13, 2010 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61B 2017/0441 20130101;
A61B 17/0401 20130101; A61B 2017/0448 20130101; A61B 2017/0414
20130101; A61B 2017/0409 20130101; A61B 2017/044 20130101; A61B
2017/0412 20130101; A61B 2017/0445 20130101; A61B 2017/0453
20130101; A61B 2017/0435 20130101; A61B 2017/0464 20130101 |
International
Class: |
A61B 17/04 20060101
A61B017/04 |
Claims
1. An anchoring system comprising: an anchor with a longitudinal
axis extending along a length of the anchor, the anchor comprising:
an anchor body comprising: a proximal end positioned along the
longitudinal axis, a distal end positioned along the longitudinal
axis and opposite from the proximal end, a cavity positioned along
the longitudinal axis between the proximal end and the distal end,
an opening to the cavity at the proximal end of the anchor body,
and a transverse hole into the cavity, wherein the transverse hole
includes a proximal edge and a distal edge, wherein there are
ridges on an interior portion of the cavity at substantially the
same longitudinal location as the transverse hole, and wherein the
cavity extends distal of the distal edge of the transverse hole and
proximal of the proximal edge of the transverse hole, and an
insertion member with an end having a substantially flat profile
sized and configured to be moved within the cavity such that the
insertion member, as measured from the substantially flat profile
to another point along the insertion member, covers the transverse
hole from a point proximal of the proximal edge of the transverse
hole to a point distal of the distal edge of the transverse hole;
and a delivery device configured to couple with the anchor and move
the insertion member relative to the anchor body along the
longitudinal axis.
2. The anchoring system of claim 1 wherein the transverse hole into
the cavity goes through each side of the anchor body and goes
through the cavity between each side of the anchor body.
3. The anchoring system of claim 1 wherein the ridges are formed by
threads within the cavity.
4. The anchoring system of claim 1 wherein the anchor body includes
one or more barbs on an exterior of the anchor body positioned to
resist proximal movement of the anchor from a bone.
5. The anchoring system of claim 1 wherein the anchor body includes
one or more protrusions on an exterior of the anchor body located
distal of the transverse hole into the cavity.
6. The anchoring system of claim 1 wherein the anchor body includes
a pointed distal portion configured for insertion into a bone
without prior creation of a hole in the bone.
7. The anchoring system of claim 1 wherein the insertion member is
headless such that the insertion member is configured to be driven
by placing an inner member of the delivery device into a proximal
end of the insertion member without engaging any head of the
insertion member.
8. The anchoring system of claim 1 wherein the end of the insertion
member having a substantially flat profile is a substantially solid
substantially flat end.
9. The anchoring system of claim 1 wherein the end having a
substantially flat profile is a distal end of the insertion
member.
10. The anchoring system of claim 1 wherein the insertion member is
sized and configured to be moved distally and proximally within the
cavity of the anchor body.
11. The anchoring system of claim 1 wherein the substantially flat
profile may be located at a point distal of the distal edge when
the insertion member covers the transverse hole from a point
proximal of the proximal edge to a point distal of the distal
edge.
12. The anchoring system of claim 1 wherein the delivery device
includes an outer member configured to couple to the anchor body
and an inner member configured to couple to the insertion
member.
13. The anchoring system of claim 1 wherein the delivery device is
configured to move the insertion member relative to the anchor body
along the longitudinal axis by rotating the insertion member
relative to the anchor body.
14. The anchoring system of claim 1, further comprising a flexible
member sized to be passed into the transverse hole in the anchor
body and to be fixed relative to the anchor body when the insertion
member is moved within the cavity such that the insertion member
covers the transverse hole from a point proximal of the proximal
edge to a point distal of the distal edge.
15. The anchoring system of claim 1, further comprising a suture
threader comprising: a clip configured to releasably clip to the
delivery device, and a strand of suture that is passed through at
least a portion of the transverse hole and couples to the clip.
16. An anchoring system comprising: an anchor with a longitudinal
axis extending along a length of the anchor, the anchor comprising:
an anchor body comprising: a proximal end positioned along the
longitudinal axis, a distal end positioned along the longitudinal
axis and opposite from the proximal end, a cavity positioned along
the longitudinal axis between the proximal end and the distal end,
an opening to the cavity at the proximal end of the anchor body,
and a transverse hole into the cavity, wherein the transverse hole
includes a proximal edge and a distal edge, wherein there are
ridges on an interior portion of the cavity at substantially the
same longitudinal location as the transverse hole, and wherein the
cavity has a working diameter that extends distal of the distal
edge of the transverse hole and proximal of the proximal edge of
the transverse hole, and an insertion member with a minimum
diameter along a length of the insertion member sized to
substantially fill the working diameter of the cavity from a point
proximal of the proximal edge of the transverse hole to a point
distal of the distal edge of the transverse hole; and a delivery
device configured to couple with the anchor and move the insertion
member relative to the anchor body along the longitudinal axis.
17. The anchoring system of claim 16 wherein the transverse hole
into the cavity goes through each side of the anchor body and goes
through the cavity between each side of the anchor body.
18. The anchoring system of claim 16 wherein the ridges are formed
by threads within the cavity.
19. The anchoring system of claim 16 wherein the anchor body
includes one or more barbs on an exterior of the anchor body
positioned to resist proximal movement of the anchor from a
bone.
20. The anchoring system of claim 16 wherein the anchor body
includes one or more protrusions on an exterior of the anchor body
located distal of the transverse hole into the cavity.
21. The anchoring system of claim 16 wherein the anchor body
includes a pointed distal portion configured for insertion into a
bone without prior creation of a hole in the bone.
22. The anchoring system of claim 16 wherein the insertion member
is headless such that the insertion member is configured to be
driven by placing an inner member of the delivery device into a
proximal end of the insertion member without engaging any head of
the insertion member.
23. The anchoring system of claim 16 wherein the insertion member
includes an end having a substantially flat profile.
24. The anchoring system of claim 23 wherein the end of the
insertion member having a substantially flat profile is a
substantially solid substantially flat end.
25. The anchoring system of claim 23 wherein the end having a
substantially flat profile is a distal end of the insertion
member.
26. The anchoring system of claim 23 wherein the insertion member
with an end having a substantially flat profile is sized and
configured to be moved distally within the cavity of the anchor
body such that the insertion member covers the transverse hole from
a point proximal of the proximal edge to a point distal of the
distal edge, wherein after such covering movement the end having
the substantially flat profile may be located at a point distal of
the distal edge.
27. The anchoring system of claim 16 wherein the delivery device
includes an outer member configured to couple to the anchor body
and an inner member configured to couple to the insertion
member.
28. The anchoring system of claim 16 wherein the delivery device is
configured to move the insertion member relative to the anchor body
along the longitudinal axis by rotating the insertion member
relative to the anchor body.
29. The anchoring system of claim 16, further comprising a flexible
member sized to be passed into the transverse hole in the anchor
body and to be fixed relative to the anchor body when the working
diameter of the insertion member is within the cavity from a point
proximal of the proximal edge to a point distal of the distal
edge.
30. The anchoring system of claim 16, further comprising a suture
threader comprising: a clip configured to releasably clip to the
delivery device, and a strand of suture that is passed through at
least a portion of the transverse hole and couples to the clip.
31. An anchoring system comprising: an anchor with a longitudinal
axis extending along a length of the anchor, the anchor comprising:
an anchor body comprising: a proximal end positioned along the
longitudinal axis, a distal end positioned along the longitudinal
axis and opposite from the proximal end, a cavity positioned along
the longitudinal axis between the proximal end and the distal end,
an opening to the cavity at the proximal end of the anchor body,
and a transverse hole into the cavity, wherein the transverse hole
includes a proximal edge and a distal edge, wherein there are
ridges on an interior portion of the cavity at substantially the
same longitudinal location as the transverse hole, and wherein the
cavity extends distal of the distal edge of the transverse hole and
proximal of the proximal edge of the transverse hole, and an
insertion member sized and configured to be moved within the cavity
to cover the transverse hole, wherein the insertion member includes
a typical outer body diameter, wherein the typical outer body
diameter is smaller than a diameter of any threads on the insertion
member and smaller than a diameter of any head of the insertion
member and larger than a dimension of the transverse hole into the
cavity that is substantially perpendicular to the longitudinal axis
of the anchor, and wherein the anchor is sized and configured such
that the typical body diameter of the insertion member fits within
the cavity from a point proximal of the proximal edge of the
transverse hole to a point distal of the distal edge of the
transverse hole, and a delivery device configured to couple with
the anchor and move the insertion member relative to the anchor
body along the longitudinal axis.
32. The anchoring system of claim 31 wherein the transverse hole
into the cavity goes through each side of the anchor body and goes
through the cavity between each side of the anchor body.
33. The anchoring system of claim 31 wherein the ridges are formed
by threads within the cavity.
34. The anchoring system of claim 31 wherein a portion of the
cavity proximal of the transverse hole includes threads.
35. The anchoring system of claim 31 wherein the anchor body
includes one or more barbs on an exterior of the anchor body
positioned to resist proximal movement of the anchor from a
bone.
36. The anchoring system of claim 31 wherein the anchor body
includes one or more protrusions on an exterior of the anchor body
located distal of the transverse hole into the cavity.
37. The anchoring system of claim 31 wherein the anchor body
includes a pointed distal portion configured for insertion into a
bone without prior creation of a hole in the bone.
38. The anchoring system of claim 31 wherein the insertion member
is headless such that the insertion member is configured to be
driven by placing an inner member of the delivery device into a
proximal end of the insertion member without engaging any head of
the insertion member.
39. The anchoring system of claim 31 wherein the insertion member
includes an end having a substantially flat profile.
40. The anchoring system of claim 39 wherein the end of the
insertion member having a substantially flat profile is a
substantially solid substantially flat end.
41. The anchoring system of claim 39 wherein the end having a
substantially flat profile is a distal end of the insertion
member.
42. The anchoring system of claim 39 wherein the diameter of the
end of the insertion member having a substantially flat profile is
substantially the same diameter as the typical outer body
diameter.
43. The anchoring system of claim 39 wherein the insertion member
with an end having a substantially flat profile is sized and
configured to be moved distally within the cavity of the anchor
body such that the insertion member covers the transverse hole from
a point proximal of the proximal edge to a point distal of the
distal edge, wherein after such covering movement the end having
the substantially flat profile may be located at the point distal
of the distal edge.
44. The anchoring system of claim 31 wherein the delivery device
includes an outer member configured to couple to the anchor body
and an inner member configured to couple to the insertion
member.
45. The anchoring system of claim 31 wherein the delivery device is
configured to move the insertion member relative to the anchor body
along the longitudinal axis by rotating the insertion member
relative to the anchor body.
46. The anchoring system of claim 31, further comprising a flexible
member sized to be passed into the transverse hole in the anchor
body and to be fixed relative to the anchor body when the insertion
member is within the cavity such that the insertion member covers
the transverse hole from a point proximal of the proximal edge to a
point distal of the distal edge.
47. The anchoring system of claim 31, further comprising a suture
threader comprising: a clip configured to releasably clip to the
delivery device, and a strand of suture that is passed through at
least a portion of the transverse hole and couples to the clip.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 12/943,086 filed on Nov. 10, 2010, which
claims priority to U.S. Pat. Appl. No. 61/259,737, filed Nov. 10,
2009, U.S. Pat. Appl. No. 61/259,739, filed Nov. 10, 2009, U.S.
Pat. Appl. No. 61/290,695, filed Dec. 29, 2009, U.S. Pat. Appl. No.
61/312,481, filed Mar. 10, 2010, and U.S. Pat. Appl. No.
61/334,221, filed May 13, 2010, all of the disclosures of which are
incorporated herein by reference in their entirety.
BACKGROUND
[0002] 1. Field of Technology
[0003] The present disclosure relates to tissue repair devices, and
more specifically, to anchors, anchor assemblies, and delivery
devices for use in securing tissue to bone.
[0004] 2. Related Art
[0005] Arthroscopic procedures often require soft tissue to be
reattached to bone. To achieve this, anchors are placed in the bone
and sutures attached to the anchor are passed through the tissue to
securely retain the tissue in place. A procedure and components for
use in such procedure, that securely attaches tissue to bone, is
needed. Such procedure must be able to be done in a quick and
efficient manner with a minimum of recovery time for the
patient.
SUMMARY
[0006] In an aspect, the present disclosure relates to an anchor
assembly. The anchor assembly includes an anchor defining a cavity
and an opening to the cavity; and a headless insertion member
configured for arrangement within the anchor cavity, the insertion
member including a body having a threaded proximal portion, a
non-threaded distal portion, and a cannulation extending a partial
length of the insertion member. In an embodiment, the cannulation
is triangular shaped. In another embodiment, the anchor cavity
includes a threaded proximal portion and a non-threaded distal
portion. In yet another embodiment, the distal portion of the
insertion member includes two segments and a tapered portion
located between the segments.
[0007] In another aspect, the present disclosure relates to an
anchor assembly. The anchor assembly includes an anchor defining a
cavity and an opening to the cavity and a headless insertion member
configured for arrangement within the anchor cavity, the insertion
member including a fully threaded body and a cannulation extending
a partial length of the insertion member.
[0008] In yet another aspect, the present disclosure relates to a
surgical device. The surgical device includes a shaft including an
outer member and an inner member slidably received within the outer
member, the outer member including an inner surface having threads
and the inner member including an outer surface having threads; a
handle coupled to the shaft; and a knob coupled to the inner
member, wherein the threads of the inner member and the threads of
the outer member are engaged to allow for coupling of the inner
member and the outer member and movement of the outer member
relative to the inner member upon rotation of the knob. In an
embodiment, the inner member is triangular-shaped. In another
embodiment, the inner member includes a depth stop. In yet another
embodiment, the outer member includes a tip extending from an end
of the outer member. In a further embodiment, the tip is
square-shaped.
[0009] In a further aspect, the present disclosure relates to an
anchor assembly. The anchor assembly including an anchor defining a
cavity and an opening to the cavity, the cavity including a
non-threaded proximal portion and a threaded distal portion; and a
headless insertion member configured for arrangement within the
anchor cavity, the insertion member including a body and a
cannulation extending a partial length of the insertion member, the
body including a threaded proximal portion and a non-threaded
distal portion. In an embodiment, the proximal portion is
square-shaped.
[0010] In yet a further aspect, the present disclosure relates to
an anchor. The anchor includes a body defining a cavity and an
opening to the cavity, the body including an outer surface and
channels extending from the outer surface to the cavity. In an
embodiment, the body includes barbs, the channels located between
the barbs. In another embodiment, the outer surface includes slots,
the slots intersecting the barbs.
[0011] In an aspect, the present disclosure relates to an anchor
assembly. The anchor assembly including an anchor defining a cavity
and an opening to the cavity, the anchor including a body having an
outer surface and barbs extending from the body and alternating in
direction along the length of the body; and a headless insertion
member configured for arrangement within the anchor cavity, the
insertion member including a body and a cannulation extending a
partial length of the insertion member.
[0012] In another aspect, the present disclosure relates to an
anchor assembly. The anchor assembly includes an anchor including
an outer body and an inner body coupled to the outer body, the
outer body including a first feature and a second feature, the
inner body including a first feature and a second feature, the
first feature of the inner body and the first feature of the outer
body engaged to allow for non-rotation of the inner body relative
to the outer body and the second feature of the inner body and the
second feature of the outer body engaged to allow for non-movement
of the inner body relative to the outer body in an axial direction;
and a headless insertion member configured for arrangement within
the inner body, the insertion member including a body and a
cannulation extending a partial length of the insertion member.
[0013] In still another aspect, the present disclosure relates to
an anchoring system that includes an anchor with a longitudinal
axis extending along a length of the anchor and a delivery device.
The anchor may include an anchor body and an insertion member. The
anchor body may include a proximal end positioned along the
longitudinal axis, a distal end positioned along the longitudinal
axis and opposite from the proximal end, a cavity positioned along
the longitudinal axis between the proximal end and the distal end,
and an opening to the cavity at the proximal end of the anchor
body, a transverse hole into the cavity, wherein the transverse
hole includes a proximal edge and a distal edge, wherein there are
ridges on an interior portion of the cavity at substantially the
same longitudinal location as the transverse hole, and wherein the
cavity extends distal of the distal edge of the transverse hole and
proximal of the proximal edge of the transverse hole. The insertion
member may have an end with a substantially flat profile sized and
configured to be moved within the cavity such that the insertion
member, as measured from the substantially flat profile to another
point along the insertion member, covers the transverse hole from a
point proximal of the proximal edge of the transverse hole to a
point distal of the distal edge of the transverse hole. The
delivery device may be configured to couple with the anchor and
move the insertion member relative to the anchor body along the
longitudinal axis.
[0014] In an aspect, the present disclosure relates to an anchoring
system that includes an anchor with a longitudinal axis extending
along a length of the anchor and a delivery device. The anchor may
include an anchor body and an insertion member. The anchor body may
include a proximal end positioned along the longitudinal axis, a
distal end positioned along the longitudinal axis and opposite from
the proximal end, a cavity positioned along the longitudinal axis
between the proximal end and the distal end, an opening to the
cavity at the proximal end of the anchor body, and a transverse
hole into the cavity, wherein the transverse hole includes a
proximal edge and a distal edge, wherein there are ridges on an
interior portion of the cavity at substantially the same
longitudinal location as the transverse hole, and wherein the
cavity has a working diameter that extends distal of the distal
edge of the transverse hole and proximal of the proximal edge of
the transverse hole. Embodiments of the insertion member have a
minimum diameter along a length of the insertion member sized to
substantially fill the working diameter of the cavity from a point
proximal of the proximal edge of the transverse hole to a point
distal of the distal edge of the transverse hole. The delivery
device may be configured to couple with the anchor and move the
insertion member relative to the anchor body along the longitudinal
axis.
[0015] In another aspect, the present disclosure relates to an
anchoring system that includes an anchor with a longitudinal axis
extending along a length of the anchor and a delivery device. The
anchor may include an anchor body and an insertion member. The
anchor body may include a proximal end positioned along the
longitudinal axis, a distal end positioned along the longitudinal
axis and opposite from the proximal end, a cavity positioned along
the longitudinal axis between the proximal end and the distal end,
an opening to the cavity at the proximal end of the anchor body,
and a transverse hole into the cavity, wherein the transverse hole
includes a proximal edge and a distal edge, wherein there are
ridges on an interior portion of the cavity at substantially the
same longitudinal location as the transverse hole, and wherein the
cavity extends distal of the distal edge of the transverse hole and
proximal of the proximal edge of the transverse hole. The insertion
member may be sized and configured to be moved within the cavity to
cover the transverse hole, wherein the insertion member includes a
typical outer body diameter, wherein the typical outer body
diameter is smaller than a diameter of any threads on the insertion
member and smaller than a diameter of any head of the insertion
member and larger than a dimension of the transverse hole into the
cavity that is substantially perpendicular to the longitudinal axis
of the anchor, and wherein the anchor is sized and configured such
that the typical body diameter of the insertion member fits within
the cavity from a point proximal of the proximal edge of the
transverse hole to a point distal of the distal edge of the
transverse hole. The delivery device may be configured to couple
with the anchor and move the insertion member relative to the
anchor body along the longitudinal axis.
[0016] Further areas of applicability of the present disclosure
will become apparent from the detailed description provided
hereinafter. It should be understood that the detailed description
and specific examples, while indicating the preferred embodiment of
the disclosure, are intended for purposes of illustration only and
are not intended to limit the scope of the disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated in and
form a part of the specification, illustrate the embodiments of the
present disclosure and together with the written description serve
to explain the principles, characteristics, and features of the
disclosure. In the drawings:
[0018] FIG. 1 shows a side elevational view of a first embodiment
of the anchor assembly of the present disclosure.
[0019] FIG. 2A shows a side elevational view of the anchor of the
anchor assembly of FIG. 1.
[0020] FIG. 2B shows a cross-sectional view of the anchor of FIG.
2A.
[0021] FIG. 3A shows a side elevational view of the insertion
member of the anchor assembly of FIG. 1.
[0022] FIG. 3B shows a cross-sectional view of the insertion member
of FIG. 3A.
[0023] FIG. 4 shows an isometric view of the delivery device of the
present disclosure.
[0024] FIG. 5 shows a cross-sectional view of the distal ends of
the outer and inner members of the delivery device of FIG. 4 and
the anchor assembly of FIG. 1 prior to fixation of suture.
[0025] FIG. 6 shows a cross-sectional view of the distal ends of
the outer and inner members of the delivery device of FIG. 4 and
the anchor assembly of FIG. 1 after fixation of suture.
[0026] FIG. 7 shows a cross-sectional view of the proximal ends of
the outer and inner members of the delivery device of FIG. 4.
[0027] FIG. 8 shows a side elevational view of a second embodiment
of the anchor assembly of the present disclosure.
[0028] FIG. 9 shows a side elevational view of the anchor of the
anchor assembly of FIG. 8.
[0029] FIG. 10 shows a cross-sectional view of the anchor of FIG.
9.
[0030] FIG. 11 shows a side elevational view of the insertion
member of the anchor assembly FIG. 8.
[0031] FIG. 12 shows a cross-sectional view of the insertion member
of FIG. 11.
[0032] FIG. 13 shows an isometric view of the delivery device for
use with the anchor assembly of FIG. 8.
[0033] FIG. 14 shows a cross-sectional view of the delivery device
and anchor assembly of FIG. 13 prior to use of the device and
assembly during surgery.
[0034] FIG. 14A shows an exploded view of the distal end of the
delivery device and the anchor assembly of FIG. 14.
[0035] FIG. 14B shows an exploded view of the proximal ends of the
outer and inner members of the delivery device of FIG. 14.
[0036] FIG. 15 shows a cross-sectional view of the delivery device
and anchor assembly of FIG. 13 after use of the device and assembly
during surgery.
[0037] FIG. 15A shows an exploded view of the distal end of the
delivery device and the anchor assembly of FIG. 15.
[0038] FIG. 15B shows an exploded view of the proximal ends of the
outer and inner members of the delivery device of FIG. 14.
[0039] FIGS. 16-27 show a method of tissue repair via use of the
delivery device and anchor assembly of FIGS. 1 and 13.
[0040] FIG. 28 shows a side elevational view of a third embodiment
of the anchor assembly of the present disclosure.
[0041] FIG. 29 shows a side elevational view of the anchor of the
anchor assembly of FIG. 28.
[0042] FIG. 30 shows a side view of the anchor of FIG. 29.
[0043] FIG. 31 shows a cross-sectional view of the anchor of FIG.
29.
[0044] FIG. 32 shows a side elevational view of the insertion
member of the anchor assembly of FIG. 28.
[0045] FIG. 33 shows a cross-sectional view of the insertion member
of FIG. 32.
[0046] FIG. 34 shows an isometric view of the delivery device for
use with the anchor assembly of FIG. 28.
[0047] FIG. 34A shows an exploded view of the distal end of the
delivery device of FIG. 34.
[0048] FIG. 35 shows an isometric view of the delivery device and
anchor assembly of FIGS. 28 and 34.
[0049] FIG. 36 shows a cross-sectional view of the delivery device
and anchor assembly of FIG. 35 prior to use of the device and
assembly during surgery.
[0050] FIG. 36A shows an exploded view of the proximal ends of the
outer and inner members of the delivery device of FIG. 36.
[0051] FIG. 36B shows an exploded view of the anchor assembly of
FIG. 36
[0052] FIG. 37 shows a cross-sectional view of the delivery device
and anchor assembly of FIG. 35 after to use of the device and
assembly during surgery.
[0053] FIG. 37A shows an exploded view of the proximal ends of the
outer and inner members of the delivery device of FIG. 37.
[0054] FIG. 37B shows an exploded view of the anchor assembly of
FIG. 37.
[0055] FIG. 38 shows an isometric view of a first embodiment of a
fenestrated suture anchor of the present disclosure.
[0056] FIG. 39 shows a side view of the anchor of FIG. 38.
[0057] FIG. 40 shows a cross-sectional view of the anchor of FIG.
39.
[0058] FIG. 41 shows a side elevational view of a second embodiment
of a fenestrated suture anchor of the present disclosure.
[0059] FIG. 42 shows a cross sectional view of the anchor of FIG.
41.
[0060] FIG. 43 shows a side elevational view of a third embodiment
of a fenestrated suture anchor of the present disclosure.
[0061] FIG. 44 shows a cross-sectional view of the anchor of FIG.
43.
[0062] FIG. 45 shows a side view of a fourth embodiment of the
anchor assembly of the present disclosure.
[0063] FIG. 46 shows a side elevational view of the anchor assembly
of FIG. 45.
[0064] FIG. 47 shows a side view of a fifth embodiment of the
anchor assembly of the present disclosure.
[0065] FIG. 48 shows a side elevational view of the anchor assembly
of FIG. 47.
[0066] FIG. 49 shows a side view of a sixth embodiment of the
anchor assembly of the present disclosure.
[0067] FIG. 50 shows a side elevational view of the anchor assembly
of FIG. 49.
[0068] FIG. 51 shows a side view of a seventh embodiment of the
anchor assembly of the present disclosure.
[0069] FIG. 52 shows a cross-sectional view of the anchor assembly
of FIG. 51.
[0070] FIG. 53 shows a side view of an eighth embodiment of the
anchor assembly of the present disclosure.
[0071] FIG. 54 shows a cross-sectional view of the anchor assembly
of FIG. 53.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0072] The following description of the preferred embodiment(s) is
merely exemplary in nature and is in no way intended to limit the
disclosure, its application, or uses.
[0073] FIGS. 1, 2A-2B, and 3A-3B show a first embodiment of the
anchor assembly 10 of the present disclosure and its components.
The assembly 10 includes the anchor 20 and the insertion member 30.
The anchor 20 includes a proximal portion 21, a distal portion 22,
and an inner cavity 23. An opening 24 to the cavity 23 is located
at the proximal portion 21 of the anchor 20. The anchor 20 also
includes a transverse hole 25 extending through the anchor 20. The
through hole 25 is for housing of a flexible member, such as
suture. Openings 25a, 25b are located at each end of the through
hole 25. The outer surface 27 of the proximal portion 21 also
includes barbs 28 for substantially reducing the possibility of
removal of the anchor 20 when inserted into bone. The outer surface
27 also includes at least two slots 29 extending from the openings
25a, 25b of the through hole 25. The slots 29 intersect the barbs
28 and are configured for housing of the suture after positioning
of the anchor 20 in bone. As shown in FIG. 2B, the cavity 23
extends into and beyond the through hole 25 and includes a threaded
proximal portion 23a and a non-threaded distal portion 23b. Also
shown in FIG. 2B are a pair of depressions 26, each of which is
located adjacent to the cavity 23. The depressions 26 are for
housing of a delivery device, as will be further explained
later.
[0074] The insertion member 30 includes a headless body 31 having a
threaded proximal portion 31a and a non-threaded distal portion
31b. The distal portion 31b includes two segments 31b', 31b'' and a
tapered portion 31c located between the segments 31b', 31b''.
Segment 31b'' has a flat end portion 31d. As shown in FIGS. 3A and
3B, the member 30 includes a triangular-shaped cannulation 31e that
extends a partial length of the member 30. The threads 31a' are
configured for engagement with the threads 23c of the cavity 23
when the insertion member 30 is arranged within the cavity 23, as
will be further explained below.
[0075] FIGS. 4-7 show the delivery device 40 of the present
disclosure. The device 40 includes a shaft 41, a handle 42 coupled
to the shaft 41, and a knob 43 coupled to the handle 42. The shaft
41 includes an outer member 41a and an inner member 41b slidably
disposed within and coupled to the outer member 41a. The inner
member 41b includes a distal end 41b' configured for disposal
within the cannulation 31e of the insertion member 30 and a
proximal end 41b'' coupled to the knob 43. The end 41b' is of a
diameter such that it engages the wall 31e' of the cannulation 31e,
thereby allowing movement of the member 30 when the knob 43 is
rotated, as will be further described below. The outer member 41a
includes prongs 41c located at a distal end 41a' of the outer
member 41a and a proximal end 41a'' coupled to the handle 42.
[0076] Prior to use, suture 44 is disposed within the through hole
25 and ends 44a, 44b of the suture 44 are fixed to suture holders
45 located on handle 42. The suture 44 helps to keep anchor 20
coupled to the shaft 41. The delivery device 40 and its components,
especially the handle 42 and knob 43, is similar to the delivery
device shown and described in US Patent Application Publication
20100016869, the disclosure of which is incorporated herein by
reference in its entirety. The ends 44a, 44b of the suture 44 are
also housed within channels 46 that extend along the shaft 41. A
suture threader 11000 is also releasably coupled to the shaft 41.
Threader 11000 includes a clip 11000a and a loop of suture 11000b
coupled to the clip 11000a. Suture loop 11000b is disposed within
the through hole 25 and placed around the clip 11000a.
[0077] As shown in FIG. 5, the prongs 41e are disposed within the
depressions 26. Once the anchor assembly 10 is disposed within
bone, the prongs 41c help to hold the anchor 20 stationary while
the insertion member 30 is moved relative to the anchor 20 via
rotation of the knob 43. As will be further described below, FIG. 5
shows the location of the insertion member 30 prior to fixation of
suture within the cavity 23, while FIG. 6 shows the location of the
insertion member 30 after fixation of suture within the cavity 23.
The non-threaded distal portion 31b is configured to be housed
within the non-threaded distal portion 23b of the anchor 20.
[0078] Additionally, as shown in FIG. 7, the proximal end 41b'' of
the inner member 41b includes threads 41d on an outer surface 41e
of the inner member 41b and the proximal end 41a'' of the outer
member 41a includes threads 411f on an inner surface 41g of the
outer member 41a. Threads 411f engage threads 41d to allow for
coupling of the outer and inner members 41a, 41b and axial movement
of the inner member 41b relative to the outer member 41a, via
rotation of the knob 43. Axial movement of the inner member 41b
relative to the outer member 41a allows for axial movement of the
insertion member 30 to the two locations shown in FIGS. 5 and
6.
[0079] FIGS. 8-12 show a second embodiment of the anchor assembly
100 of the present disclosure and its components. The assembly 100
includes the anchor 200 and the insertion member 300. The anchor
200 includes a proximal portion 210, a distal portion 220, and an
inner cavity 230. An opening 240 to the cavity 230 is located at
the proximal portion 210 of the anchor 200. The anchor 200 also
includes a transverse hole 250 extending through the anchor 200.
The through hole 250 is for housing of a flexible member, such as
suture. Openings 250a, 250b are located at each end of the through
hole 250. The outer surface 270 of the proximal portion 210 also
includes barbs 280 for substantially reducing the possibility of
removal of the anchor 200 when inserted into bone. The outer
surface 270 also includes at least two slots 290 extending from the
openings 250a, 250b of the through hole 250. The slots 290
intersect the barbs 280 and are configured for housing of the
suture after positioning of the anchor 200 in bone. As shown in
FIG. 10, the cavity 230 extends into and beyond the through hole
250. Also shown in FIG. 10 are a pair of depressions 260, each of
which is located adjacent to the cavity 230. The depressions 260
are for housing of a delivery device, as will be further explained
later.
[0080] The insertion member 300 includes a body 310 having threads
310a, a distal portion 310b, and a proximal portion 310c. As shown
in FIGS. 8, 11, and 12, the member 300 includes a triangular-shaped
cannulation 310d that extends a partial length of the member 300.
The threads 310a are configured for engagement with the threads
230c of the cavity 230 when the insertion member 300 is arranged
within the cavity 230, as will be further explained below.
[0081] FIGS. 13-14, 14A-14B, 15, and 15A-15B show the delivery
device 400 of the present disclosure for use with the anchor
assembly 100 of FIG. 8. The device 400 includes a shaft 410, a
handle 420 coupled to the shaft 410, and a knob 430 coupled to the
handle 420. The shaft 410 includes an outer member 410a and an
inner member 410b slidably disposed within and coupled to the outer
member 410a. The inner member 410b includes a distal end 410b'
configured for disposal within the cannulation 310d of the
insertion member 300 and a proximal end 410b'' coupled to the knob
430. The end 410b' is of a diameter such that it engages the wall
310d' of the cannulation 310d, thereby allowing movement of the
member 30 when the knob 430 is rotated, as will be further
described below. The outer member 410a includes prongs 410c located
at a distal end 410a' of the outer member 410a and a proximal end
410a'' coupled to the handle 420.
[0082] Prior to use, suture 440 is disposed within the through hole
250 and ends 440a, 440b of the suture 440 are fixed to suture
holders 450 located on handle 420. The suture 440 helps to keep
anchor 200 coupled to the shaft 410. The delivery device 400 and
its components, especially the knob 430, is similar to the delivery
device shown and described in the '869 publication. The ends 440a,
440b of the suture 440 are also housed within channels 460 that
extend along the shaft 410. A suture threader 12000 is also
releasably coupled to the shaft 410. Threader 12000 includes a clip
12000a and a loop of suture 12000b coupled to the clip 12000a.
Suture loop 12000b is disposed within the through hole 250 and
placed around the clip 12000a.
[0083] As shown in FIGS. 14A and 15A, the prongs 410c are disposed
within the depressions 260. Once the anchor assembly 100 is
disposed within bone, the prongs 410c help to hold the anchor 200
stationary while the insertion member 300 is moved relative to the
anchor 200 via rotation of the knob 430. As will be further
described below, FIG. 14A shows the location of the insertion
member 300 prior to fixation of suture within the through hole 250,
while FIG. 15A shows the location of the insertion member 300 after
fixation of suture within the through hole 250.
[0084] Additionally, as shown in FIGS. 14B and 15B, the proximal
end 410b'' of the inner member 410b includes threads 410d on an
outer surface 410e of the inner member 410b and the proximal end
410a'' of the outer member 410a includes threads 410f on an inner
surface 410g of the outer member 410a. Threads 410f engage threads
410d to allow for coupling of the outer and inner members 410a,
410b and axial movement of the inner member 410b relative to the
outer member 410a. Axial movement of the inner member 410b relative
to the outer member 410a allows for axial movement of the insertion
member 300 to the two locations shown in FIGS. 14A and 15A. Member
410b also includes a depth stop 410b''' that engages an end 410a'''
of member 410a, as shown in FIG. 15B, once member 300 is located as
shown in FIG. 15A. Interaction of the depth stop 410b''' with the
end 410a''' ceases axial movement of the member 300 toward the
through hole 250 and prevents the member 300 from being overly
inserted into the cavity 230. The insertion member 300 is moved
axially towards the through hole 250 to engage the flexible member
and secure the flexible member within the cavity 230, which will be
further described below.
[0085] FIGS. 16-27 show the anchor assembly 10, 100 of the present
disclosure in use during soft tissue repair, specifically to repair
labrum tears in the shoulder. As shown in FIG. 16, the labrum 2000
has been torn away from the glenoid cavity 3000 and is in need of
being re-attached. FIG. 16 shows a monofilament suture loop 4001
from a suture passer 4000 being inserted through the labrum 2000
via use of a first cannula 5000. A grasper 6000 from a second
cannula 7000 grabs the loop 4001 and pulls it through the second
cannula 7000. Once the loop 4001 is pulled through the second
cannula 7000, one end 8001 of a suture 8000 is passed through the
loop 4001. The one end 8001 of the suture 8000 is pulled through
the labrum 2000 and first cannula 5000 via the loop 4001, while the
other end 8002 is grasped and pulled through the first cannula 5000
to have both ends 8001, 8002 exiting the cannula 5000, as shown in
FIG. 17.
[0086] A hole 3001 is then made in the glenoid 3000 via the use of
a drill guide 9000 and drill 10000, as shown in FIGS. 18 and 19.
The ends 8001, 8002 are placed through the suture threader loop
11000b, 12000b and pulled through the through hole 25,250 of the
anchor 20, 200, as shown in FIGS. 20 and 21. The suture 44,440 is
removed from the delivery device 40,400 prior to inserting the
anchor assembly 10, 100 into the hole 3001. After the anchor
assembly 10, 100 is inserted into the hole 3001, as shown in FIGS.
22 and 23, the suture ends 8001, 8002 are tensioned and the ends
8001, 8002 are locked by placing the ends 8001, 8002 in the suture
holder 45, 450, as shown in FIG. 24, and the inner plug 30, 300 is
then rotated, via rotation of the knob 43, 430 to fixate the suture
8000 in the cavity 23, 230.
[0087] The suture ends 8001, 8002 are cut, as shown in FIG. 26, and
the delivery device 40, 400 is removed. Additional anchor
assemblies 10, 100 may be inserted until the desired final repair
is completed, as shown in FIG. 27. For clarity purposes, only end
8001, suture loop 12000b, and anchor assembly 100 are shown in
FIGS. 20-23. However, in practice, both ends 8001, 8002 are used
and suture loop 11000b and anchor assembly 10 may be used rather
than suture loop 12000b and anchor assembly 100.
[0088] FIGS. 28-33 show an alternative embodiment of the anchor
assembly 500 of the present disclosure and its components. The
assembly 500 includes the anchor 600 and the insertion member 700.
The anchor 600 includes a proximal portion 610, a distal portion
620, and an inner cavity 630. The inner cavity 630 will be further
described below. An opening 640 to the cavity 630 is located at the
proximal portion 610 of the anchor 600. The anchor 600 also
includes a transverse hole 650 extending through the anchor 600.
The through hole 650 is for housing of a flexible member, such as
suture. Openings 650a, 650b are located at each end of the through
hole 650. The outer surface 670 of the proximal portion 610 also
includes wings 680 for substantially reducing the possibility of
removal of the anchor 600 when inserted into bone. The wings 680
are unlike barbs 28, 280 in that wings 680 are longer, have more
space between them, and extend further upward and outward then
barbs 28, 280. The outer surface 670 also includes at least two
slots 690 extending from the openings 650a, 650b of the through
hole 650. The slots 690 intersect the wings 680 and are configured
for housing of the suture after positioning of the anchor 600 in
bone. As shown in FIG. 10, the cavity 630 extends into and beyond
the through hole 650 and includes a non-threaded proximal portion
630a and a threaded distal portion 630b. The proximal portion 630a
is square-shaped to correspond with an end of the delivery device
used to insert the anchor 600 into bone, as will be further
described below. The proximal portion 630a also has a larger
diameter and is shorter than the distal portion 630b.
[0089] The insertion member 700 includes a body 710 having a
threaded proximal portion 710a and a non-threaded distal portion
710b. The proximal portion 710a has a larger diameter than the
distal portion 710b. The member 700 includes a triangular-shaped
cannulation 710e that extends a partial length of the member 700.
The threads 710a' are configured for engagement with the threads
630c of the cavity 630 when the insertion member 700 is arranged
within the cavity 630, as will be further explained below.
[0090] FIGS. 34, 34A, 35, 35, 36, 36A-36B, and 37A-37B show the
delivery device 800 of the present disclosure. The device 800
includes a shaft 810, a handle 820 coupled to the shaft 810, and a
knob 830 coupled to the handle 820. The shaft 810 includes an outer
member 810a and an inner member 810b slidably disposed within and
coupled to the outer member 810a. The inner member 810b includes a
distal end 810b' configured for disposal within the cannulation
710e of the insertion member 700 and a proximal end 810b'' coupled
to the knob 830. The end 810b' is of a diameter such that it
engages the wall 710e' of the cannulation 710e, thereby allowing
movement of the member 700 when the knob 830 is rotated, as will be
further described below. The outer member 810a includes a
square-shaped tip 810c extending from a distal end 810a' of the
outer member 810a and a proximal end 810a'' coupled to the handle
820.
[0091] The handle 820 includes suture holders 850, each suture
holder 850 extending from a side of the handle 820. Additionally,
as shown in FIG. 34, a flexible member 900, such as a suture, is
housed within the through hole 650 with each end 900a, 900b of the
member 900 being coupled to a holder 850. The flexible member 850
helps to hold the anchor 600 on the device 800 prior to insertion
of the anchor 600 into bone. The ends 900a, 900b of the suture 900
are also housed within channels 860 that extend along the shaft
810. A suture threader 13000 is also releasably coupled to the
shaft 81. Threader 13000 includes a clip 13000a and a loop of
suture 13000b coupled to the clip 13000a. Suture loop 13000b is
disposed within the through hole 650 and placed around the clip
13000a. The delivery device 800 and its components, especially the
knob 830, are similar to the delivery device shown and described in
the '869 publication.
[0092] As shown in FIGS. 36 and 37, the tip 810c is disposed within
the proximal portion 630a. Once the anchor assembly 500 is disposed
within bone, the tip 810c helps to hold the anchor 600 stationary
while the insertion member 700 is moved relative to the anchor 600.
Additionally, as shown in FIG. 14A, the proximal end 810b'' of the
inner member 810b includes threads 810d on an outer surface 810e of
the inner member 810b and the proximal end 810a'' of the outer
member 810a includes threads 810f on an inner surface 810g of the
outer member 810a. Threads 810f engage threads 810d to allow for
coupling of the outer and inner members 810a, 810b and axial
movement of the inner member 810b relative to the outer member
810a.
[0093] Axial movement of the inner member 810b relative to the
outer member 810a allows for axial movement of the insertion member
700 to the two locations shown in FIGS. 36B and 37B. Member 810b
also includes a depth stop 810b''' that engages an end 810a''' of
member 810a, as shown in FIG. 37A, once member 700 is located as
shown in FIG. 37B. Interaction of the depth stop 810b''' with the
end 810a''' ceases axial movement of the member 700 toward the
through hole 650 and prevents the member 700 from being overly
inserted into the cavity 630. The insertion member 700 is moved
axially towards the through hole 650 to engage the flexible member
and secure the flexible member within the cavity 630, which will be
further described below.
[0094] During tissue repair via use of the anchor assembly 500 and
the driver 800, suture from a previously placed anchor is pulled
through the through hole 650. The manner in which the suture is
pulled through the through hole 650 may be the same as the manner
described in the '106 and '180 patent applications. The anchor
assembly 500 is subsequently inserted into bone, via use of the
driver 800, in the manner shown in FIG. 36B. Axial advancement of
the anchor assembly 500 into the bone may occur via tapping on the
handle 820. After the soft tissue is situated on the bone and the
suture is located through the soft tissue, in the manner described
in the '106 and '180 patent applications, the insertion member 700
is moved axially towards the distal portion 630b, via rotation of
the knob 830 to engage the suture and secure the suture within the
cavity 630, in the manner shown in FIG. 37B. For clarity purposes,
only the anchor assembly 500 is shown in FIGS. 36B and 37B.
However, a further description and showing of a method of tissue
repair similar to the above-described method, is shown in the '106
and '180 published applications.
[0095] The components of the anchor assemblies 10, 100, 500 are
made from a bioabsorbable polymer material via an injection molding
process. However, other materials and processes may be used. In
addition, the suture material is made from a bioabsorbable polymer
material, but other material may be used. Furthermore, the outer
surface 27, 270, 670 of the anchors 20, 200, 600 may include
features other than barbs and wings 28, 280, 680 to reduce the
possibility of removal of the anchor 20, 200, 600 and the barbs 28,
280, 680 may extend the entire length or a partial length of the
anchor 20, 200, 600. Similarly, the body 31, 310, 710 of the
insertion member 30, 300, 700 and the cavity 23, 230, 630 of the
anchor 20, 200, 600 may include features other than threads to
facilitate insertion and removal of the insertion member 30, 300,
700 and the threads 31a', 310a, 710a' may extend the entire length
or a partial length of the body 31, 310, 710 and cavity 23, 230,
630. Also, for the purposes of this disclosure, the through hole
25, 250, 650 may be located anywhere along the length of the anchor
20, 200, 600. Additionally, it is within the scope of this
disclosure for the anchor 20, 200, 600 to have more or less than
two slots 29, 290, 690.
[0096] Additionally, for the purposes of this disclosure, the outer
member 41a, 410a includes at least one prong 41c, 410c and the
anchor 20, 200 includes at least one corresponding depression 26,
260. Also, the cannulation 31e, 310e of the insertion member 30,
300 may extend an entire length of the insertion member 30,300 and
may include a shape other than triangular.
[0097] The outer and inner members 41a, 41b, 410a, 410b, 810a, 810b
of the delivery device 40, 400, 800 include a stainless steel
material, but may be made from any other metal or non-metal
material that is bio-compatible and strong enough to withstand the
forces that are placed on the members 41a, 41b, 410a, 410b, 810a,
810b during surgery. The members 41a, 41b, 410a, 410b, 810a, 810b
may be machined, die drawn and subsequently machined, or made by
any other method known to one of skill in the art. The outer and
inner members 41a, 41b, 410a, 410b, 810a, 810b are coupled to the
handle 42, 420, 820 and knob 43, 430, 830 respectively, via a
press-fit procedure. However, other methods of coupling the handle
42, 420, 820 and knob 43, 430, 830 to the members 41a, 41b, 410a,
410b, 810a, 810b are also within the scope of this disclosure. The
handle 42, 420, 820 and knob 43, 430, 830 are of a non-metal
material, but may be made from a metal material, and both are made
via an injection molding process. However, other methods of making
are also within the scope of this disclosure.
[0098] FIGS. 38-40 show a first embodiment of a fenestrated suture
anchor 1000 of the present disclosure. The anchor 1000 includes a
body 1001 having a proximal portion 1001a and a distal portion
1001b, a transverse through hole 1002 located between the distal
and proximal portions 1001b, 1001a, and a cavity 1003 extending a
partial length of the body 1001. Wings 1004 exist along the body
1001 and outward from it. Similar to the wings 680, wings 1004
engage bone when the anchor 1000 is inserted into the bone, as will
be further described below. The body 1001 also includes suture
slots 1005 extending from openings 1002a, 1002b of the hole 1002.
Additionally, there are channels 1006 extending along the body 1001
on both sides of the slots 1005. The channels 1006 extending from
an outer surface 1007 of the anchor 1000 to the cavity 1003,
thereby allowing the anchor 1000 to be fenestrated. The channels
1006 allow for ingrowth of tissue, such as bone, and other
nutrients after insertion of the anchor 1000 into bone, as will be
further described later. A suture 1008 is housed within the hole
1002 having its ends 1008a, 1008b housed within the slots 1005.
[0099] FIGS. 41-42 show a second embodiment of a fenestrated suture
anchor 1100. The anchor 1100 includes a body 1101 having a proximal
portion 1101a and a distal portion 1101b, a transverse through hole
1102 located between the distal and proximal portions 1101b, 1101a,
and a cavity 1103 extending a partial length of the body 1101.
Barbs 1104 exist along the body 1101 and extend outward from it.
Similar to the barbs 28, 280, barbs 1104 engage bone when the
anchor 1100 is inserted into the bone, as will be further described
below. The body 1101 also includes channels 1106 extending along
the body 1101. The channels 1106 extending from an outer surface
1107 of the anchor 1100 to the cavity 1103, thereby allowing the
anchor 1100 to be fenestrated. The channels 1106 allow for ingrowth
of tissue, such as bone, and other nutrients after insertion of the
anchor 1100 into bone, as will be further described later. A suture
1108 is housed within the hole 1102 having its ends 1108a, 1108b
extend through openings 1102a, 1102b and then back through the
cavity 1103, as shown in FIG. 41.
[0100] FIGS. 43-44 show a first embodiment of a fenestrated suture
anchor 1200 of the present disclosure. The anchor 1200 includes a
body 1201 having a proximal portion 1201a and a distal portion
1201b, a transverse through hole 1202 located between the distal
and proximal portions 1201b, 1201a, and a cavity 1203 extending a
partial length of the body 1201. Barbs 1204 exist along the body
1201 and extend outward from it. Similar to the barbs 28, 280,
barbs 1204 engage bone when the anchor 1200 is inserted into the
bone, as will be further described below. The body 1201 also
includes suture slots 1205 extending from openings 1202a, 1202b of
the hole 1202. Additionally, there are channels 1206 extending
along the body 1201 interspaced with the slots 1205. The channels
1206 extend from an outer surface 1207 of the anchor 1200 to the
cavity 1203, thereby allowing the anchor 1200 to be fenestrated.
The channels 1206 allow for ingrowth of tissue, such as bone, and
other nutrients after insertion of the anchor 1200 into bone, as
will be further described later. A suture 1208 is housed within the
hole 1202 having its ends 1208a, 1208b housed within the slots
1205.
[0101] During repair of tissue via use of the suture anchors 1000,
1100, 1200, a delivery device having a handle and a shaft may be
used to deliver the anchors into bone. An end of the shaft may be
inserted into the cavity of the anchors and may have the same shape
as cavity. The anchors 1000, 1100, 1200 are designed to be inserted
into bone via axial motion. The torn tissue may then be placed on
the bone, adjacent the anchors 1000, 1100, 1200. Subsequently, the
suture may then be pulled through the tissue and tied to attach the
tissue to the bone. A hole may be drilled in the bone prior to
inserting the anchors 1000, 1100, 1200 into the bone.
[0102] FIGS. 45-50 show anchor assemblies 1300, 1400, 1500 similar
to the anchor assemblies 10 of FIGS. 1, 8, and 28. The anchor
assemblies 1300, 1400, 1500 are similar to the anchor assemblies
10, 100, 500 of FIGS. 1, 8, and 28 and the anchor assemblies shown
and described in US Patent Application Publication No. 20090112270,
the disclosure of which is incorporated herein by reference in its
entirety, and the '869 publication mentioned above. FIGS. 45-50
only show the anchors 1310, 1410, 1510 of the assemblies 1300,
1400, 1500. Although for the purposes of this disclosure, an
insertion member, similar to the insertion members shown in the
above mentioned figures and publications, would also be used with
the anchors 1310, 1410, 1510. However, it is possible that the
anchors 1310, 1410, 1510 could be used without insertion members,
thereby being used in a similar manner to anchors 1000, 1100, 1200
during surgery.
[0103] FIGS. 45-46 show an anchor 1310 having barbs 1320 that
extend outward from the body 1330 of the anchor 1310 and along its
entire length on both sides. The barbs 1320 alternate in direction
along the length of the anchor 1310. Similar to wings 680,
extending the barbs 1320 outward from the body 1330 increases the
overall surface area of the barbs 1320 and allows flexibility,
which improves resistance to anchor pull-out, thereby reducing the
possibility of removal of the anchor 1300 when inserted into bone.
FIGS. 47-50 show anchors 1410, 1510, which include barbs 1420,
1520, similar in design and orientation, to barbs 1320 of anchor
1310. Unlike anchor 1310, the barbs 1420, 1520 do not extend along
the entire length of the anchor 1410, 1510 and the distal end 1440,
1540 of the anchor 1410, 1510 is pointed thereby making it possible
to insert the anchor 1410, 1510 into bone without first creating a
hole in the bone.
[0104] FIGS. 51 and 52 show an anchor 1610 that includes an outer
body 1620 and an inner body 1630 disposed within the outer body
1620. The outer body 1620 includes an outer surface 1621 having
wings 1622, similar to wings 680, and an inner cavity 1623. The
distal end 1624 of the inner cavity 1623 includes a first feature
1625 and a second feature 1626, which will be more fully explained
below in relation to the inner body 1630. Similar to the anchors
described above, the outer body 1620 also includes a transverse
hole 1627 and slots 1628. Similar to the anchors described above,
the inner body 1630 includes a threaded inner cavity 1631, a
through hole 1632, a proximal portion 1633, and a distal portion
1634. The inner body 1630 includes a first feature 1635 and a
second feature 1636, both of which are located between the proximal
and distal portions 1633, 1634 and which will be more fully
explained below in relation to the outer body 1620. The inner body
1630 is disposed within the outer body 1620 such that the outer
body first feature 1625 is located within the inner body first
feature 1635 and the outer body second feature 1626 is located
within the inner body second feature 1636. The first features 1625,
1635 are shaped so as to substantially reduce the possibility of
the inner body 1630 rotating in relation to the outer body 1620
during repair, as will be more fully described below. The second
features 1626, 1636 are shaped so as to substantially reduce the
possibility of the inner body 1630 from moving axially in relation
to the outer body 1620 during insertion of the anchor 1610 into
bone, as will be more fully described below. Additionally, the
through holes 1627, 1632 are aligned.
[0105] Similar to anchors 1310, 1410, 1510, anchor 1610 is part of
an anchor assembly. However, for clarity purposes, the anchor 1610
is shown without an inner member. The distal portion 1634 of the
inner body 1630 is pointed and the proximal portion 1633 does not
extend the entire length of the inner cavity 1623, the purposes of
which will be described later.
[0106] During insertion of the anchor 1610 into bone, a delivery
device 1700, similar to delivery device 800, is used. For clarity
purposes, only the outer member 1710a of the shaft 1710 is shown in
FIGS. 51 and 52. The outer member 1710a is inserted into the anchor
1610 such that the square-shaped tip 1710c is inserted into the
inner cavity 1623. The tip 1710c engages the inner body 1630 such
that there is a clearance 1800 between the distal end 1710a' of the
shaft 1710 and the anchor 1610. During insertion of the anchor 1610
into bone, the outer member 1710a only engages the inner body 1630,
thereby asserting all of the axial force of the outer member 1710a
on the inner body 1630, rather than the outer body 1620. The
cooperation of the second features 1626, 1636 substantially reduces
the possibility of the inner body 1630 becoming unlocked from the
outer body 1620 during axial insertion of the anchor 1610 into the
bone. After insertion of the anchor 1610 into bone, a threaded
inner member is rotationally inserted into the cavity 1631 via the
use an inner member on the delivery device 1700, similar to the
method of repair described above. During rotational insertion of
the inner member into the cavity 1631, the cooperation of the first
features 1625, 1635 substantially reduces the possibility of
rotation of the inner body 1630 in relation to the outer body 1620.
The pointed distal portion 1634 of the inner body 1630 allows for
insertion of the anchor 1610 into bone without having to create a
hole in the bone prior to insertion.
[0107] For the purposes of this disclosure, the inner body 1630 is
made from a metal material and the outer body 1620 is made from a
polymer material. The outer and inner bodies 1620, 1630 are coupled
to each other via an interference fit or overmolding. However,
other materials and manners of coupling may be used.
[0108] FIGS. 53 and 54 show an anchor 1900 similar to the anchor
600, albeit with a distal portion 1920 that is pointed enough to
allow for insertion of the anchor 1900 into bone without first
creating a hole in bone.
[0109] As various modifications could be made to the exemplary
embodiments, as described above with reference to the corresponding
illustrations, without departing from the scope of the disclosure,
it is intended that all matter contained in the foregoing
description and shown in the accompanying drawings shall be
interpreted as illustrative rather than limiting. Thus, the breadth
and scope of the present disclosure should not be limited by any of
the above-described exemplary embodiments, but should be defined
only in accordance with the following claims appended hereto and
their equivalents.
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