U.S. patent application number 12/585675 was filed with the patent office on 2010-03-25 for minimally-thick orthopedic prosthesis is disclosed which closely matches the end of a bone of a joint after that bone end has been minimally reshaped and resurfaced by an orbital or lineally oscillating orthopedic resurfacing tool in the minimally invasive orthopedic surgical repair or reconstructio.
Invention is credited to Edwin Burton Hatch.
Application Number | 20100076571 12/585675 |
Document ID | / |
Family ID | 42038418 |
Filed Date | 2010-03-25 |
United States Patent
Application |
20100076571 |
Kind Code |
A1 |
Hatch; Edwin Burton |
March 25, 2010 |
Minimally-thick orthopedic prosthesis is disclosed which closely
matches the end of a bone of a joint after that bone end has been
minimally reshaped and resurfaced by an orbital or lineally
oscillating orthopedic resurfacing tool in the minimally invasive
orthopedic surgical repair or reconstruction of hip, knee, ankle,
shoulder, elbow, wrist, and other joints
Abstract
A minimally-thick orthopedic prosthesis is described which
closely matches the end of a bone of a joint after that bone end
has been minimally reshaped and resurfaced by an orbital or
lineally oscillating orthopedic resurfacing tool in the minimally
invasive orthopedic surgical repair or reconstruction of hip, knee,
ankle, shoulder, elbow, wrist, and other joints. The original
ligament tensions and the varus and valgus alignments of the joint
are preserved and the marrow cavities of bones are not invaded
avoiding the dangers of blood clots, heart attacks, and other
complications.
Inventors: |
Hatch; Edwin Burton; (The
Villages, FL) |
Correspondence
Address: |
Edwin Burton Hatch
9658 S.E. 168th Elderberry Place
The Villages
FL
32162
US
|
Family ID: |
42038418 |
Appl. No.: |
12/585675 |
Filed: |
September 21, 2009 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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61192848 |
Sep 23, 2008 |
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Current U.S.
Class: |
623/23.53 |
Current CPC
Class: |
A61B 2217/005 20130101;
A61B 17/1659 20130101; A61B 2217/007 20130101; A61B 17/1624
20130101; A61B 17/1628 20130101; A61B 17/1662 20130101 |
Class at
Publication: |
623/23.53 |
International
Class: |
A61F 2/28 20060101
A61F002/28 |
Claims
1. A surface-matching minimally-thick orthopedic stamped from a
sheet metal form of an orthopedic metal alloy, selected from a
group of orthopedic metal alloys which includes stainless steel
orthopedic alloys, cobalt-chrome orthopedic alloys, and titanium
orthopedic alloys, and which said surface-matching minimally-thick
orthopedic is formed so as to closely match the surface of the end
of a bone of a joint after that said bone end has been minimally
reshaped and resurfaced by an orbital or lineally oscillating
orthopedic resurfacing tool intended for use in the orthopedic
surgical repair and reconstruction of the bone ends in hip, knee,
ankle, shoulder, elbow, wrist, and other joints, and which said
minimally-thick orthopedic prosthesis can be affixed onto the said
resurfaced bone end by means of mechanical attachments using bone
glue as a bonding agent and to fill the space between the said
surface-matching minimally-thick orthopedic prosthesis and its said
resurfaced bone end, thereby becoming a new fully supported wear
surface for that said resurfaced bone end, and which said
minimally-thick orthopedic prosthesis is able to have an orthopedic
prosthetic meniscus affixed to its surface which is distal from its
said resurfaced bone end.
2. The combination as set forth in claim 1 where in the said
minimally-thick sheet metal orthopedic prosthesis has a thickness
between 0.030 of an inch and 0.300 of an inch.
3. The combination as set forth in claim 2 where in the said
mechanical attachments consist of grooved mounting pins which are
spin-welded to the said minimally-thick sheet metal orthopedic
prosthesis and extended toward the proximal surface of the said
resurfaced bone end.
4. The combination as set forth in claim 2 where in the said
mechanical attachments consist of threaded mounting bolts welded to
the said minimally-thick sheet metal orthopedic prosthesis and
extended toward the proximal surface of the said resurfaced bone
end.
5. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting pins riveted to the said
minimally-thick sheet metal orthopedic prosthesis and extended
toward the proximal surface of the said resurfaced bone end.
6. The combination as set forth in claim 2 where in the said
mechanical attachments consist of screws extended toward the
proximal surface of the said resurfaced bone end.
7. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting tabs which are welded to
the said minimally-thick sheet metal orthopedic prosthesis and
extended toward the proximal surface of the said resurfaced bone
end.
8. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting tabs formed from the
said minimally-thick sheet metal orthopedic prosthesis which are
bent toward the proximal surface of the said resurfaced bone
end.
9. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting pins riveted to the said
minimally-thick sheet metal orthopedic prosthesis which are
extended toward the proximal surface of the said resurfaced bone
end and which said minimally-thick sheet metal orthopedic
prosthesis also has an peripheral edge which is bent away from the
proximal surface of the said resurfaced bone end which is used to
further retain an artificial meniscus affixed to that said
minimally-thick sheet metal orthopedic prosthesis.
10. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting pins riveted to the said
minimally-thick sheet metal orthopedic prosthesis which are
extended toward the proximal surface of the said resurfaced bone
end and which said minimally-thick sheet metal orthopedic
prosthesis also has mounting tabs bent away from the proximal
surface of the said resurfaced bone end which are used to further
retain it to an artificial meniscus.
11. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting pins riveted to the said
minimally-thick sheet metal orthopedic prosthesis which are
extended toward the proximal surface of the said resurfaced bone
end and which said minimally-thick sheet metal orthopedic
prosthesis also has holes punched into it which are used to further
retain it to an artificial meniscus.
12. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting pins riveted to the said
minimally-thick sheet metal orthopedic prosthesis which are
extended toward the proximal surface of the said resurfaced bone
end and which said minimally-thick sheet metal orthopedic
prosthesis also has orthopedic metal alloy granules, thermally
fused onto its surface which is distal from the said resurfaced
bone end, which are used to further retain it to an artificial
meniscus.
13. The combination as set forth in claim 2 where in the said
mechanical attachments consist of mounting pins riveted to the said
minimally-thick sheet metal orthopedic prosthesis which are
extended toward the proximal surface of the said resurfaced bone
end and which has an orthopedic woven metal screen, spot welded to
its surface which is distal from the said resurfaced bone end,
which is used to further retain it to an artificial meniscus.
14. A minimally-thick orthopedic prosthesis which is cast from a
suitable orthopedic metal alloy selected from a group of orthopedic
metal alloys which includes stainless steel orthopedic alloys,
cobalt-chrome orthopedic alloys, and titanium orthopedic alloys,
and which said minimally-thick orthopedic prosthesis has integral
mounting pins which are extended toward the proximal surface of the
said resurfaced bone end, and which said surface-matching
minimally-thick orthopedic is formed so as to closely match the
surface of the end of a bone of a joint after that said bone end
has been minimally reshaped and resurfaced by an orbital or
lineally oscillating orthopedic resurfacing tool intended for use
in the orthopedic surgical repair and reconstruction of the bone
ends in hip, knee, ankle, shoulder, elbow, wrist, and other joints,
and which said minimally-thick orthopedic prosthesis can be affixed
onto the said resurfaced bone end by means of its integral mounting
pins using bone glue as a bonding agent and to fill the space
between the said surface-matching minimally-thick orthopedic
prosthesis and its said resurfaced bone end, thereby becoming a new
fully supported wear surface for that said resurfaced bone end, and
which said minimally-thick orthopedic prosthesis is able to have an
orthopedic prosthetic meniscus affixed to its surface which is
distal from its said resurfaced bone end.
15. The combination as set forth in claim 14 where in the said
minimally-thick cast metal orthopedic prosthesis has a minimum
thickness of 0.030 of an inch and a maximum thickness of 0.300 of
an inch.
16. A minimally-thick orthopedic prosthesis which is forged A
minimally-thick orthopedic prosthesis which is cast from a suitable
orthopedic metal alloy selected from a group of orthopedic metal
alloys which includes stainless steel orthopedic alloys,
cobalt-chrome orthopedic alloys, and titanium orthopedic alloys,
and which said minimally-thick orthopedic prosthesis has integral
mounting pins which are extended toward the proximal surface of the
said resurfaced bone end, and which said surface-matching
minimally-thick orthopedic is formed so as to closely match the
surface of the end of a bone of a joint after that said bone end
has been minimally reshaped and resurfaced by an orbital or
lineally oscillating orthopedic resurfacing tool intended for use
in the orthopedic surgical repair and reconstruction of the bone
ends in hip, knee, ankle, shoulder, elbow, wrist, and other joints,
and which said minimally-thick orthopedic prosthesis can be affixed
onto the said resurfaced bone end by means of its integral mounting
pins using bone glue as a bonding agent and to fill the space
between the said surface-matching minimally-thick orthopedic
prosthesis and its said resurfaced bone end, thereby becoming a new
fully supported wear surface for that said resurfaced bone end, and
which said minimally-thick orthopedic prosthesis is able to have an
orthopedic prosthetic meniscus affixed to its surface which is
distal from its said resurfaced bone end.
17. The combination as set forth in claim 16 where in the said
minimally-thick cast metal orthopedic prosthesis has a minimum
thickness of 0.030 of an inch and a maximum thickness of 0.300 of
an inch. While the invention here in described in the
specifications and illustrated in the drawings are in reference to
the knee joint, it is to be understood that this invention applies
to the orthopedic surgical repair and reconstruction of hip, knee,
ankle, shoulder, elbow, wrist, and other anatomical joints. It will
be further understood to those skilled in the art that various
changes may be made and equivalents may be substituted for elements
there of without departing from the scope of the invention as
defined in the claims. In addition, many modifications may be made
to adapt a particular situation or material to the teaching of the
invention without departing from the essential scope thereof.
Therefore, it is intended that the invention not be limited to the
particular embodiments illustrated by the drawings and described in
the specification as the best mode presently contemplated for
carrying out this invention and that the invention will include any
embodiments falling within the description of the appended claims.
Description
[0001] A minimally-thick orthopedic prosthesis is disclosed which
closely matches the end of a bone of a joint after that bone end
has been minimally reshaped and resurfaced by an orbital or
lineally oscillating orthopedic resurfacing tool in the minimally
invasive orthopedic surgical repair or reconstruction of hip, knee,
ankle, shoulder, elbow, wrist, and other joints.
Related U.S. Provisional Patent Document
TABLE-US-00001 [0002] 61/192,848 Sep. 23, 2008 Edwin Burton
Hatch
Related U.S. Utility Patent Application Submissions
TABLE-US-00002 [0003] Appl. #12/381,566 Confirm. #8304 Mar. 12,
2009 Edwin Burton Hatch Appl. #12/383,202 Confirm. #8772 Mar. 21,
2009 Edwin Burton Hatch
References Cited
TABLE-US-00003 [0004] 4,085,466 Apr. 25, 1978 John William
Goodfellow, et. al. 4,502,161 Mar. 5, 1985 W. H. Wall 5,755,803 May
26, 1998 Timothy G. Haines, et. al. 6,344,059 Feb. 5, 2002 Gabor
Krakovits 7,105,026 Sep. 12, 2006 Erin M. Johnson RE29,757 Sep. 12,
1978 Arthur Jacob Helfet
BACKGROUND OF THE INVENTION
[0005] In current orthopedic surgical total joint replacement, a
large amount of bone tissue is typically removed from bone ends in
preparation for the installation of a prosthesis. Coumadin is
prescribed to thin the blood prior to a knee and hip replacement
surgery where those prostheses have shafts that are driven into the
femur to mount them to the femur. This drives crushed marrow into
the blood stream where it can cause blood clots and heart attacks
during and after surgery. In addition, when older patients fall
they may break a femur because the tip of the shaft of a hip or
knee prosthesis creates peak stress concentrations to occur in the
middle of the weakened femur bone shaft. Resultant secondary
surgical repair procedures and those required because of an
accident or a patient's deteriorating condition may be technically
difficult because of the large amount of bone removed during the
original surgery. Current surgeries can result in problems of
tendon tension and bone alignment with widely varied post-surgical
recovery problems for the patient depending upon the skills of the
surgeon and the quality of the surgical equipment available. To
overcome the problem of the skills of the surgeon some hospitals
now use computer driven robotic surgical equipment driven from
X-Ray and MRI data which escalates the costs of these
surgeries.
BRIEF SUMMARY OF THE INVENTION
[0006] This minimally-thick surface-matching prosthesis
construction is a radical departure from the massive-cast-knuckle
type of prosthesis as is typically used in total knee replacement
surgery. In this orthopedic surgical repair or reconstruction of
the hip, knee, ankle, shoulder, elbow, wrist, or other joint, an
orbital or lineally oscillating orthopedic resurfacing tool is used
which has a culling head so configured as to match an average
typical shape of the surface of a particular bone end. A
minimally-thick orthopedic prosthesis is created which closely
matches the surface of the orthopedic resurfacing tool's cutting
head and therefore closely matches the surface of the bone end
resurfaced by that cutting head. This minimally-thick
surface-matching prosthesis is mounted onto the resurfaced bone end
with mechanical attachments and using bone glue both as a bonding
agent and to fill the space between the minimally-thick
surface-matching prosthesis and the resurfaced bone end. Being
fully supported, all anatomical loads born by the joint are
uniformly distributed onto the minimally-thick surface-matching
prosthesis and to the resurfaced bone end. The minimally-thick
surface-matching prosthesis does not enter into the marrow of the
bone avoiding the serious dangers of blood clots and heart attack
and no broken bones will result from peak stress concentrations in
the middle of the femur shaft due to prosthesis shafts driven into
the marrow cavities. The patient's original tendon tensions and
bone alignments are preserved making recovery from surgery more
natural. This type of orthopedic surgery can be performed under
minimum surgical conditions without elaborate surgical equipment.
Time in surgery and costs of these surgical procedures are reduced,
and surgical results will be more uniform and satisfactory.
Secondary surgical repair procedures required because of an
accident or a patient's deteriorating orthopedic condition will
also present less technically difficulty.
[0007] The invention as here in taught applies to the orthopedic
surgical repair or reconstruction of all bone ends in all
anatomical joints. However, for purposes of teaching this
invention, the embodiments described and illustrated here in relate
to the knee joint. It is to be understood that no limitation of the
scope of this invention is intended.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 presents, for reference purposes, a front sectional
view of a knee joint, without the patella present, showing the
distal end of the femur [1] drilled with mounting holes [2], a
minimally-thick metal orthopedic femur prosthesis [3] having
mounting pins [4] attached, the proximal end of the tibia [5]
drilled with mounting holes [6], and a minimally-thick metal
orthopedic tibia prosthesis [7] having mounting pins [8] attached,
and which minimally-thick metal orthopedic tibia prosthesis [7] is
affixed to a tibia meniscus [9].
[0009] FIG. 2 presents, for reference purposes, a side sectional
view of the patella [10] of a knee joint with mounting holes [11]
drilled into its posterior surface and showing a minimally-thick
metal orthopedic patella prosthesis [12] having mounting pins [13]
attached, and which minimally-thick metal orthopedic patella
prosthesis [12] is affixed to a patella meniscus [14].
[0010] FIG. 3 presents a front sectional view showing a tibia
meniscus [9] affixed to a minimally-thick stamped sheet metal
orthopedic tibia prosthesis [7], which has mounting pins [15] spin
welded to it, and with this assemblage mounted onto the proximal
end of the tibia [5], which has mounting holes [6] drilled into its
proximal end, by means of the mounting pins [15] and bone glue
[16].
[0011] FIG. 4 presents a front sectional view showing a tibia
meniscus [9] affixed to a minimally-thick stamped sheet metal
orthopedic tibia prosthesis [7], which has threaded mounting pins
[17] welded to it, and which assemblage is mounted onto the
proximal end of the tibia [5], which has mounting holes [6] drilled
into its proximal end, by means of the threaded mounting pins [17]
and bone glue [16].
[0012] FIG. 5 presents a front sectional view showing a tibia
meniscus [9] affixed to a minimally-thick stamped sheet metal
orthopedic tibia prosthesis [7], which has grooved mounting pins
[18] riveted to it, and which assemblage is mounted onto the
proximal end of the tibia [5], which has mounting holes [6] drilled
into its proximal end, by means of the grooved mounting pins [18]
and bone glue [16].
[0013] FIG. 6 presents a front sectional view showing a tibia
meniscus [9] affixed to a minimally-thick stamped sheet metal
orthopedic tibia prosthesis [7] and which assemblage is mounted
onto the proximal end of the tibia [5], by means of the screws [19]
and bone glue [16].
[0014] FIG. 7 presents a front sectional view showing a tibia
meniscus [9] affixed to a stamped sheet metal orthopedic tibia
prosthesis [20] and which assemblage is mounted onto the proximal
end of the tibia [5], which has mounting holes [6] drilled into its
proximal end, by means of tabs [21] welded to the tibia prosthesis
[20] and bone glue [16].
[0015] FIG. 8 presents a front sectional view showing a tibia
meniscus [9] affixed to a stamped sheet metal orthopedic tibia
prosthesis [22] and which assemblage is mounted onto the proximal
end of the tibia [5], which has mounting holes [6] drilled into its
proximal end, by means of tabs [23] formed out of the tibia
prosthesis [22] and bone glue [16].
[0016] FIG. 9 presents a front sectional view showing a tibia
meniscus [9] affixed to a stamped sheet metal orthopedic tibia
prosthesis [24], which has grooved mounting pins [18] riveted to
it, and which is further joined and retained to the stamped
orthopedic metal tibia prosthesis [24] by means of a peripheral
edge [25] formed from the stamped sheet metal orthopedic tibia
prosthesis [24], and which assemblage is mounted onto the tibia
[5], which has mounting holes [6] drilled into its proximal end, by
means of the grooved mounting pins [18] and bone glue [16].
[0017] FIG. 10 presents a plan view and a front sectional view
showing a tibia meniscus [9] affixed to a stamped sheet metal
orthopedic tibia prosthesis [26], which has grooved mounting pins
[18] riveted to it, and which tibia meniscus [9] is further joined
and retained to the stamped orthopedic metal tibia prosthesis [26],
by means of tabs [27] formed out of the tibia prosthesis [26], and
which assemblage is mounted onto the tibia [5], which has mounting
holes [6] drilled into its proximal end, by means of the grooved
mounting pins [18] and bone glue [16].
[0018] FIG. 11 presents a plan view and sectional view showing a
tibia meniscus [9] affixed to a stamped sheet metal orthopedic
tibia prosthesis [28] which are further joined together and
retained by means of holes [29] punched into the Stamped sheet
metal orthopedic tibia prosthesis [28], which stamped sheet metal
orthopedic tibia prosthesis [28] has grooved mounting pins [18]
riveted to it, and which assemblage is mounted onto the tibia [5],
which has mounting holes [6] drilled into its proximal end, by
means of the grooved mounting pins [18] and bone glue [16].
[0019] FIG. 12 presents a plan view and sectional view showing a
tibia meniscus [9] affixed to a stamped sheet metal orthopedic
tibia prosthesis [30] which are further joined and retained by
means of metal granules [31] brazed onto the stamped sheet metal
orthopedic tibia prosthesis [30], which prosthesis [30] has grooved
mounting pins [18] riveted to it, and which assemblage is mounted
onto the tibia [5], which has mounting holes [6] drilled into its
proximal end, by means of the grooved mounting pins [18] and bone
glue [16].
[0020] FIG. 13 presents a sectional view showing a tibia meniscus
[9] affixed to a stamped sheet metal orthopedic tibia prosthesis
[32], which are further joined and retained by means of an
orthopedic metal screen [33] brazed onto the stamped sheet metal
orthopedic tibia prosthesis [32], and which prosthesis [32] has
grooved mounting pins [18] riveted to it and, and which assemblage
is mounted onto the tibia [5], which has mounting holes [6] drilled
into its proximal end, by means of the grooved mounting pins [18]
and bone glue [16].
[0021] FIG. 14 presents a sectional view showing a tibia meniscus
[9] affixed to a cast orthopedic metal tibia prosthesis [34],
having integral mounting pins [35], and which assemblage is mounted
onto the tibia [5], which has mounting holes [6] drilled into its
proximal end, by means of the integral mounting pins [35] and bone
glue [16].
[0022] FIG. 15 presents plan view and a sectional view showing a
tibia meniscus [9] affixed to a forged orthopedic metal tibia
prosthesis [36], having integral mounting pins [37] attached, which
assemblage is mounted to the tibia [5] which has mounting holes [6]
drilled into its proximal end, by means of the integral mounting
pins [37] and bone glue [16].
DETAILED DESCRIPTION OF THE INVENTION
[0023] In the orthopedic surgical repair or reconstruction of the
hip, knee, ankle, shoulder, elbow, wrist, or other joint, an
orbital or lineally oscillating orthopedic resurfacing tool is used
which has a cutting head so configured as to match an average
typical shape of the surface of a particular bone end. A
minimally-thick orthopedic prosthesis is formed which closely
matches the surface of the orthopedic resurfacing tool's cutting
head and therefore closely matches the surface of the bone end
resurfaced by that cutting head. Because patient's are of different
sizes, several sizes of cutting heads and surface-matching
minimally-thick orthopedic prostheses may be required for each bone
end of each joint. This unique matched-surface relationship between
the resurfaced bone end and its surface-matching minimally-thick
orthopedic prostheses provides the bone end with a minimally-thick
new wear surface and retains the patient's original tendon tensions
and varus and valgus bone alignments. This minimally-thick
surface-matching prosthesis does not enter into the marrow of the
bone avoiding the serious dangers of blood clots and heart attack.
Broken bones will not result from peak stress concentrations in the
middle of the femur shaft caused by prosthesis shafts driven into
the marrow cavities. The surgery is simplified and is less invasive
and the skills of the surgeon become less critical. This type of
orthopedic surgery can be successfully performed under minimum
surgical conditions without elaborate surgical equipment. The time
and cost of the surgical procedure are reduced. Surgical results
will be more uniform and satisfactory with a shorter postoperative
recovery. And, secondary orthopedic surgical repair procedures
required because of a failed prior surgery or due to an accident or
the patient's deteriorating condition may be less technically
difficult.
* * * * *