U.S. patent application number 17/524961 was filed with the patent office on 2022-03-10 for specimen retrieval devices with selective bag release.
The applicant listed for this patent is Covidien LP. Invention is credited to Saumya Banerjee, Jacob C. Baril, Matthew A. Dinino, George S. Matta, Roy J. Pilletere, Justin J. Thomas.
Application Number | 20220071612 17/524961 |
Document ID | / |
Family ID | 72922538 |
Filed Date | 2022-03-10 |
United States Patent
Application |
20220071612 |
Kind Code |
A1 |
Baril; Jacob C. ; et
al. |
March 10, 2022 |
SPECIMEN RETRIEVAL DEVICES WITH SELECTIVE BAG RELEASE
Abstract
A specimen retrieval device includes an elongated shaft assembly
having a proximal end portion and a distal end portion. An end
effector is supported on the distal end portion of the elongated
shaft assembly and includes a first arm and a second arm. The first
arm includes a first distal finger and the second arm includes a
second distal finger. The first and second fingers are configured
to selectively engage one another to support a collection bag on
the first and second arms.
Inventors: |
Baril; Jacob C.; (Norwalk,
CT) ; Banerjee; Saumya; (Collinsville, CT) ;
Matta; George S.; (Plainville, MA) ; Dinino; Matthew
A.; (Newington, CT) ; Thomas; Justin J.; (New
Haven, CT) ; Pilletere; Roy J.; (Middletown,
CT) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Covidien LP |
Mansfield |
MA |
US |
|
|
Family ID: |
72922538 |
Appl. No.: |
17/524961 |
Filed: |
November 12, 2021 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
16392783 |
Apr 24, 2019 |
11172915 |
|
|
17524961 |
|
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|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61B 2017/00287
20130101; A61B 17/00234 20130101; A61B 34/30 20160201; A61B
2017/00867 20130101; A61B 34/35 20160201 |
International
Class: |
A61B 17/00 20060101
A61B017/00 |
Claims
1-20. (canceled)
21. A specimen retrieval device, comprising: a shaft having a
proximal end portion and a distal end portion; and an end effector
supported on the distal end portion of the shaft and including a
first arm and a second arm configured to cooperate to support a
collection bag thereon, the first arm including a first distal
finger and the second arm including a second distal finger, the
first and second fingers releasably slidably engaged with one
another.
22. The specimen retrieval device of claim 21, wherein, with the
first and second distal fingers slidably engaged with one another,
the first and second arms define a closed ring.
23. The specimen retrieval device of claim 22, wherein, with the
first and second distal fingers slidably engaged with one another,
the first and second distal fingers are configured to slide
relative to one another to increase or decrease a diameter of the
closed ring.
24. The specimen retrieval device of claim 23, wherein, with the
first and second distal fingers released from one another, the
first and second distal fingers define free, spaced-apart ends.
25. The specimen retrieval device of claim 21, wherein the first
distal finger or the second distal finger includes a first or a
second detent, respectively, that is selectively engagable with the
second distal finger or the first distal finger, respectively.
26. The specimen retrieval device of claim 25, wherein the first
detent or the second detent has a U-shaped configuration.
27. The specimen retrieval device of claim 25, wherein the first
detent or the second detent includes at least one wing.
28. The specimen retrieval device of claim 21, further comprising a
stationary handle and a movable handle supported on the proximal
end portion of the shaft, the movable handle movable relative to
the stationary handle to move the end effector between a closed
position within the shaft and an open position extending distally
from the shaft.
29. A specimen retrieval system, comprising: a collection bag; and
an end effector supported on the distal end portion of the shaft
and including a first arm and a second arm cooperating to support
the collection bag thereon, the first arm including a first distal
finger and the second arm including a second distal finger, the
first and second fingers releasably slidably engaged with one
another.
30. The specimen retrieval system of claim 29, wherein, with the
first and second distal fingers slidably engaged with one another,
the first and second arms define a closed ring configured to
support the collection bag thereon.
31. The specimen retrieval system of claim 30, wherein, with the
first and second distal fingers slidably engaged with one another,
the first and second distal fingers are configured to slide
relative to one another to increase or decrease a diameter of the
closed ring thereby increasing or decreasing a diameter of an open
end of the collection bag.
32. The specimen retrieval system of claim 31, wherein, with the
first and second distal fingers released from one another, the
first and second distal fingers define free, spaced-apart ends
configured for slidable receipt or removal of the collection
bag.
33. The specimen retrieval system of claim 29, wherein the first
distal finger or the second distal finger includes a first or a
second detent, respectively, that is selectively engagable with the
second distal finger or the first distal finger, respectively.
34. The specimen retrieval system of claim 33, wherein the first
detent or the second detent has a U-shaped configuration.
35. The specimen retrieval system of claim 33, wherein the first
detent or the second detent includes at least one wing.
36. A specimen retrieval device, comprising: an outer shaft; an
inner shaft disposed within the outer shaft; a first arm having a
proximal end portion secured to the inner shaft and distal end
portion having a first distal finger; and a second arm having a
proximal end portion secured to the inner shaft and distal end
portion having a second distal finger, wherein the inner shaft is
movable relative to the outer shaft to deploy the first and second
arms from the outer shaft, and wherein the first and second distal
fingers are releasably slidably engaged with one another and
configured to slide in opposite directions as the first and second
arms are deployed from the outer shaft.
37. The specimen retrieval device of claim 36, wherein, with the
first and second distal fingers slidably engaged with one another
and deployed from the outer shaft, the first and second arms define
a closed ring.
38. The specimen retrieval device of claim 37, wherein the first
and second distal fingers are configured to slide in opposite
directions to increase or decrease a diameter of the closed
ring.
39. The specimen retrieval device of claim 38, wherein, with the
first and second distal fingers released from one another and
deployed from the outer shaft, the first and second distal fingers
define free, spaced-apart ends.
40. The specimen retrieval device of claim 36, wherein the first
and second distal fingers support first and second winged detents,
respectively, configured to cam along the second and first distal
fingers, respectively.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a divisional of U.S. patent application
Ser. No. 16/392,783, filed on Apr. 24, 2019, the entire contents of
which are hereby incorporated herein by reference.
TECHNICAL FIELD
[0002] This disclosure relates to surgical instruments, and more
particularly, to specimen retrieval devices that support
BACKGROUND
[0003] Specimen retrieval devices are commonly used during surgical
procedures to collect and remove tissue specimens from a patient.
Typically, during a surgical procedure in which tissue is
transected, e.g., a hysterectomy procedure, a specimen retrieval
device including a tissue collection bag is positioned to receive
the tissue specimen once the tissue is transected. In some
procedures, a grasper may be used to transfer the transected tissue
specimen into the bag. Alternately, the bag may be positioned in
relation to the tissue specimen to allow the tissue specimen to
fall into the bag.
SUMMARY
[0004] In aspects of the disclosure, a specimen retrieval device
includes an elongated shaft assembly having a proximal end portion
and a distal end portion. An end effector is supported on the
distal end portion of the elongated shaft assembly and includes a
first arm and a second arm. The first arm includes a first distal
finger and the second arm includes a second distal finger. The
first and second fingers are configured to selectively engage one
another to support a collection bag on the first and second
arms.
[0005] In embodiments, the first and second distal fingers may be
secured together with a suture. The first distal finger may define
an opening therethrough and the second distal finger may define an
opening therethrough. The openings of the first and second distal
fingers may be configured to receive the suture therethrough.
[0006] In some embodiments, the first distal finger may include a
first detent that is selectively engagable with the second distal
finger. The second distal finger may include a second detent that
is selectively engageable with the first distal finger. One or both
of the first and second detents may have a U-shaped
configuration.
[0007] In embodiments, the first detent may include one or more
wings.
[0008] In various embodiments, the specimen retrieval device may
further include a stationary handle and a movable handle supported
on the proximal end portion of the elongated shaft assembly. The
movable handle may be movable relative to the stationary handle to
move the end effector between a closed position and an open
position.
[0009] In some embodiments, the specimen retrieval device may
further include the collection bag. The first and second arms may
be configured to retain the collection bag on the end effector when
the end effector is in the closed position. The first and second
arms may be configured to release the collection bag from the end
effector when the end effector is in the open position.
[0010] According to another aspect of the disclosure, a specimen
retrieval system includes a collection bag, a first arm, and a
second arm. The first arm has a first distal finger supported on a
distal end portion of the first arm. The second arm has a second
distal finger supported on a distal end portion of the second arm.
The first and second arms are selectively movable relative to one
another to releasably secure the collection bag on the first and
second arms. The first and second distal fingers are disposed in
slidable engagement to retain the collection bag on the first and
second arms.
[0011] In embodiments, each of first and second detents may include
a pair of wings.
[0012] According to yet another aspect of the disclosure, a
specimen retrieval device includes an outer shaft, an inner shaft,
a first arm, and a second arm. The outer shaft has a stationary
handle on a proximal end portion thereof. The inner shaft is
supported within the outer shaft and has a movable handle on a
proximal end portion thereof. The movable handle is positioned to
move relative to the stationary handle. The first arm has a
proximal end portion secured to the inner shaft and distal end
portion having a first distal finger. The second arm has a proximal
end portion secured to the inner shaft and distal end portion
having a second distal finger. The first and second distal fingers
are configured to move in opposite directions as the movable handle
moves relative to the stationary handle.
[0013] In embodiments, the first and second distal fingers may be
secured together with a suture to prevent the first and second
distal fingers from moving relative to one another.
[0014] In various embodiments, the first distal finger may support
a first winged detent and the second distal finger may support a
second winged detent. In response axial translation of the movable
handle relative to the stationary handle, the first winged detent
may be configured to radially cam along the second distal finger
and the second winged detent may be configured radially cam along
the first distal finger.
[0015] Other aspects, features, and advantages will be apparent
from the description, the drawings, and the claims that follow.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings, which are incorporated in and
constitute a part of this specification, illustrate embodiments of
the disclosure and, together with a general description of the
disclosure given above, and the detailed description of the
embodiment(s) given below, serve to explain the principles of the
disclosure, wherein:
[0017] FIG. 1 is a perspective view of one embodiment of a specimen
retrieval device in accordance with the principles of this
disclosure, the specimen retrieval device illustrated in a closed
position;
[0018] FIG. 2 is an enlarged, perspective view of the indicated
area of detail shown in FIG. 1;
[0019] FIG. 3 is a perspective view of a distal portion of arms of
the specimen retrieval device, the arms shown coupled together by a
suture;
[0020] FIGS. 4-7 are progressive views illustrating the specimen
retrieval device receiving a specimen in a collection bag of the
specimen retrieval device, and moving the arms from the closed
position to an open position to release the collection bag from the
specimen retrieval device with the specimen contained within the
collection bag;
[0021] FIG. 8 is a perspective view of a distal portion of another
embodiment of a specimen retrieval device in accordance with the
principles of this disclosure;
[0022] FIG. 9 is an enlarged, cross-sectional view, of the specimen
retrieval device of FIG. 8 as taken along section line 9-9 shown in
FIG. 8;
[0023] FIG. 10 is an enlarged, perspective view of the indicated
area of detail shown in FIG. 8;
[0024] FIG. 11 is a perspective view of a distal end portion of
another embodiment of a specimen retrieval device in accordance
with the principles of the disclosure;
[0025] FIG. 12 is a perspective of an arm of the specimen retrieval
device of FIG. 11; and
[0026] FIG. 13 is an enlarged view of the indicated area of detail
shown in FIG. 12.
DETAILED DESCRIPTION
[0027] Embodiments of the disclosed specimen retrieval devices are
described in detail with reference to the drawings, in which like
reference numerals designate identical or corresponding elements in
each of the several views. As commonly known, the term "clinician"
refers to a doctor (e.g., a surgeon), a nurse, or any other care
provider and may include support personnel. Additionally, the term
"proximal" refers to the portion of structure that is closer to the
clinician and the term "distal" refers to the portion of structure
that is farther from the clinician. In the following description,
well-known functions or constructions are not described in detail
to avoid obscuring this disclosure in unnecessary detail.
[0028] In general, this disclosure describes a specimen retrieval
device with bag release mechanisms to facilitate quick and easy
removal of collection bags supported on the specimen retrieval
device. In embodiments of this disclosure, a specimen retrieval
device includes overlapping arms that are secured together by a
suture to create a single rigid ring for supporting a collection
bag and for providing leverage when loading a specimen in the
collection bag. The suture may be cut to enable the arms to
separate so that the collection bag can be removed from the
specimen retrieval device, for instance, once a specimen is
contained within the collection bag. In some embodiments of this
disclosure, a specimen retrieval device includes arms having
U-shaped detents that overlap to secure a collection bag to the
arms. The U-shaped detents provide increased rigidity to the arms
when the arms are overlapped for supporting the collection bag on
the arms. The arms may be slidably releasable to enable bag
release.
[0029] With reference to FIGS. 1-3, a specimen retrieval device 10
defines a longitudinal axis "L" and includes an elongated shaft
assembly 15 having an outer shaft 20 and an inner shaft 30
supported within outer shaft 20. Outer shaft 20 has a proximal end
portion 20a that supports a stationary handle 40 and a distal end
portion 20b that defines a distal opening 20c. Stationary handle 40
defines finger openings 42 therethrough to facilitate grasping of
stationary handle 40 by a user's fingers. Stationary handle 40
further defines a central opening 44 axially therethrough that is
configured to slidably receive inner shaft 30 therein. Inner shaft
30 has a proximal end portion 30a that supports a movable handle 50
and a distal end portion 30b that supports an end effector 60.
Movable handle 50 defines a finger opening 52 therethrough and
includes wings 54 that extend from opposite sides of movable handle
50. Finger opening 52 and wings 54 are configured to receive a
user's fingers to facilitate finger gripping. Movable handle 50 is
positioned to move axially along longitudinal axis "L," and
relative to stationary handle 40, between distal and proximal
positions, as indicated by arrows "A."
[0030] End effector 60 of specimen retrieval device 10 supports a
collection bag 70 and includes a first arm 62 and a second arm 64
that define a ring when coupled together. First arm 62, which may
have a hook or question mark shape, includes a proximal end portion
62a that curves distally to a distal end portion 62b. Distal end
portion 62b of first arm 62 includes a first distal finger 62c and
defines a first finger recess 62d along a side surface 62e of first
distal finger 62c. First distal finger 62c defines an opening 62f
configured to receive suture 66 therethrough. Second arm 64, which
may also have a hook or question mark shape, includes a proximal
end portion 64a that curves distally to a distal end portion 64b.
Distal end portion 64b of second arm 64 includes a second distal
finger 64c and defines a second finger recess 64d along a side
surface 64e of second distal finger 64c. Second distal finger 64c
defines an opening 64f configured to receive suture 66
therethrough. First and second arms 62, 64 curve in opposite
directions so as to be mirrored relative to one another about
longitudinal axis "L." First and second distal fingers 62c, 64c are
configured to be disposed in an overlapped arrangement (e.g., so
that fingers 62c 64c, and/or openings 62f, 64f thereof are in
vertical registration with one another) as seen in FIG. 2. Side
surfaces 62e, 64e of first and second distal fingers 62c, 64c,
respectively, are configured to cam along one another such that
first and second distal fingers 62c, 64c are selectively receivable
into and/or out of first and second finger recesses 62d, 64d of
respective first and second arms 62, 64. Suture 66 can be looped
through openings 62f, 64f of respective first and second distal
fingers 62c, 64c, and tied off, to rigidly secure first and second
distal fingers 62c, 64c together so that first and second arms 62,
64 form a unitary or single rigid ring that provides increased
leverage against applied force when loading a specimen into
collection bag 70, as indicated by arrows "F" seen in FIG. 3.
[0031] As seen in FIGS. 1 and 2, collection bag 70 includes a first
arm channel 72 that has open proximal and distal ends 72a, 72b and
second arm channel 74 with open proximal and distal ends 74a, 74b.
First arm channel 72 slidably receives first arm 62 of end effector
60 and a second arm channel 74 slidably receives second arm 64 of
end effector 60. First and second arm channels 72, 74 are separated
by gap 76 that enables first and second distal fingers 62c, 64c to
extend out of respective first and second arm channels 72, 74. Gap
76 provides access to openings 62f, 64f of respective first and
second distal fingers 62c, 64c (e.g., to loop suture 66
therethrough for connecting first and second distal fingers 62c,
64c together) and/or access to suture 66 (e.g., for removing suture
66 to disconnect first and second distal fingers 62c, 64c). Gap 76
may include a recess 76a that extends below first and second arm
channels 72, 74 to increase accessibility to first and second
distal fingers 62c, 64c and/or suture 66, and which may provide
increased visualization, for instance, while end effector 60 is
disposed in a patient's body.
[0032] As illustrated in FIGS. 1-7, specimen retrieval device 10
can be provided in a retrieval configuration in which collection
bag 70 is mounted to first and second arms 62, 64 of end effector
60, suture 66 is tied to first and second distal fingers 62c, 64c
of respective first and second arms 62, 64, and movable handle 50
is disposed in a distal position in which movable handle 50 may be
in contact with, or at least in close approximation to stationary
handle 40 so that specimen retrieval device 10 can be positioned
for collecting a specimen. Once a specimen "S" is collected in
collection bag 70 of specimen retrieval device 10, as seen in FIG.
4, suture 66 can be removed, such as by untying or cutting with a
sharpened instrument like scissors "SC," as seen in FIG. 5. With
suture 66 removed from first and second arms 62, 64, movable handle
50 can be retracted proximally to cause first and second arms 62,
64 to move in radially opposite directions relative to one another,
as indicated by arrows "B" and "C," to separate first and second
arms 62, 64. Once first and second arms 62, 64 are separated,
collection bag 70 can be slid (e.g., in a distal direction "D") off
distal end portions 62b, 64b of first and second arms 62, 64 and/or
end effector 60 can be retracted proximally relative to collection
bag 70 (e.g., in a proximal direction "P") to facilitate removal of
collection bag 70 from end effector 60, as seen in FIG. 7.
[0033] FIGS. 8-10 illustrate another embodiment of a specimen
retrieval apparatus 100 that is similar to specimen retrieval
apparatus 10, but includes an end effector 110 having a first arm
112 and a second arm 114. First arm 112 extends to a first distal
finger 112a and second arm 114 extends to a second distal finger
114a that is configured to be disposed in vertical registration
with first distal finger 112a. A distal end portion of first distal
finger 112a includes a first winged detent 116 having an outer wing
116a and an inner wing 116b. Outer wing 116a is configured to
extend downwardly over an outer surface 114o of second distal
finger 114a and inner wing 116b is configured to extend downwardly
over an inner surface 114i of distal finger 114a. Similarly, a
distal end portion of second distal finger 114a includes a second
winged detent 118 with inner and outer wings 120 that are
configured to extend upwardly over inner and outer surfaces 112i,
112o of first distal finger 112a so as to mirror first winged
detent 116 of first distal finger 112a. First and second winged
detents 116, 118 may have U-shaped configurations as seen in FIG.
9. First and second winged detents 116, 118 may be formed by any
suitable technique such as stamping. Advantageously, first and
second winged detents 116, 118 increase rigidity of end effector
110 and maintain a "slide-to-release" function for bag
deployment.
[0034] In use, when first and second arms 112, 114 are moved in
radially opposite directions, as indicated by arrows "B" and "C,"
first and second winged detents 116, 118 (e.g., camming/contacting
surfaces thereof) slid or cam over first and second distal fingers
112a, 114a, respectively, to separate first and second arms 112,
114 for selectively releasing a collection bag, such as collection
70 (FIG. 1) that is supported on end effector 110 of specimen
retrieval device 100.
[0035] In some embodiments, first and/or second winged detents 116,
118 may include fewer or more wings. In one embodiment, first
and/or second winged detents 116, 118 include only a single wing.
In certain embodiments, the single wing of one of the winged
detents 116, 118 is disposed on an inner surface of end effector
100 and the single wing of the other winged detent is disposed on
an outer surface of end effector 100. In embodiments, the single
wings are disposed on just the inner surface of end effector 100,
or, in certain embodiments, just the outer surface of end effector
100.
[0036] FIGS. 11-13 illustrate another embodiment of a specimen
retrieval apparatus 200 that is similar to specimen retrieval
apparatus 100, but includes an end effector 210 having first and
second arms 212, 214 without any detents.
[0037] In some embodiments, the arms of the disclosed end effectors
may be formed of any suitable material, which may be shape memory
material such as nitinol.
[0038] Securement of any of the components of the disclosed devices
may be effectuated using known securement techniques such welding,
crimping, gluing, heat-shrinking, fastening, etc.
[0039] The various embodiments disclosed herein may also be
configured to work with robotic surgical systems and what is
commonly referred to as "Telesurgery." Such systems employ various
robotic elements to assist the clinician and allow remote operation
(or partial remote operation) of surgical instrumentation. Various
robotic arms, gears, cams, pulleys, electric and mechanical motors,
etc. may be employed for this purpose and may be designed with a
robotic surgical system to assist the clinician during the course
of an operation or treatment. Such robotic systems may include
remotely steerable systems, automatically flexible surgical
systems, remotely flexible surgical systems, remotely articulating
surgical systems, wireless surgical systems, modular or selectively
configurable remotely operated surgical systems, etc.
[0040] The robotic surgical systems may be employed with one or
more consoles that are next to the operating theater or located in
a remote location. In this instance, one team of clinicians may
prep the patient for surgery and configure the robotic surgical
system with one or more of the instruments disclosed herein while
another clinician (or group of clinicians) remotely controls the
instruments via the robotic surgical system. As can be appreciated,
a highly skilled clinician may perform multiple operations in
multiple locations without leaving his/her remote console which can
be both economically advantageous and a benefit to the patient or a
series of patients. For a detailed description of exemplary medical
work stations and/or components thereof, reference may be made to
U.S. Pat. No. 8,828,023, and PCT Application Publication No.
WO2016/025132, the entire contents of each of which are
incorporated by reference herein.
[0041] Persons skilled in the art will understand that the
structures and methods specifically described herein and shown in
the accompanying figures are non-limiting exemplary embodiments,
and that the description, disclosure, and figures should be
construed merely as exemplary of particular embodiments. It is to
be understood, therefore, that this disclosure is not limited to
the precise embodiments described, and that various other changes
and modifications may be effected by one skilled in the art without
departing from the scope or spirit of this disclosure.
Additionally, the elements and features shown or described in
connection with certain embodiments may be combined with the
elements and features of certain other embodiments without
departing from the scope of this disclosure, and that such
modifications and variations are also included within the scope of
this disclosure. Accordingly, the subject matter of this disclosure
is not limited by what has been particularly shown and
described.
* * * * *