Patent EP0585691A1 successfully refreshed from Google Patents.
US5954767A
Expired / Lapsed
US
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Curved prosthetic mesh and its method of manufacture
Assignee: CR Bard Inc
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Filing: 1996-07-24
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Granted: 1999-09-21
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Expires: 2016-07-24
Abstract
Abstract A prothesis is provided for repairing a defect in a muscle or tissue wall. The prothesis has a preformed shape that conforms to the wall to facilitate placement and minimize shifting of the prothesis when positioned on the wall. The prosthesis may include a body formed of a sheet of surgical mesh fabric having a flexible inner portion surrounded by a stiffer periphery that is capable of resuming the preformed shape after being temporarily deformed to allow for implantation. The body may include a tapered end to facilitate insertion of the prothesis between the parietal peritoneum and the abdominopelvic wall during hernia repairs. The body may also include a curved end to permit repositioning of the bladder after implantation. In one embodiment, the prothesis includes a conical portion at the tapered end and a spherical portion at the curved end. The body may also include a permanent depression on a surface that receives the iliac vessels when the prothesis is positioned on the wall to repair an inguinal hernia.
Inventors
- 👤 Docteur Philippe Pajotin
- 👤 John W. Coddaire
- 👤 Fred D. Herzog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:32
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0063; A61F2/0095; Y; Y10; Y10S; Y10S425/00; Y10S425/048
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
116 words
An implantable prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a sheet of surgical prosthetic material including an inner portion and a peripheral edge surrounding the inner portion, the inner portion having a preformed contoured shape curved in three dimensions that forms a cavity with an open end surrounded by the peripheral edge, the inner portion being constructed and arranged to conform to the wall and to minimize shifting of the prosthesis when positioned on the wall, the peripheral edge including at least first and second opposed margins, the first margin having a first curvature and the second margin having a second curvature which is less than the first curvature.
Claim 2
Dependent Claim
116 words
An implantable prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a sheet of surgical prosthetic material including an inner portion and a peripheral edge surrounding the inner portion, the inner portion having a preformed contoured shape curved in three dimensions that forms a cavity with an open end surrounded by the peripheral edge, the inner portion being constructed and arranged to conform to the wall and to minimize shifting of the prosthesis when positioned on the wall, the peripheral edge including at least first and second opposed margins, the first margin having a first curvature and the second margin having a second curvature which is less than the first curvature.
Claim 3
Dependent Claim
14 words
The prosthesis recited in claim 1, wherein the first margin includes a semicircular segment.
Claim 4
Dependent Claim
26 words
The prosthesis recited in claim 1, wherein the first margin includes an arcuate segment and a straight segment extending from an end of the arcuate segment.
Claim 5
Dependent Claim
46 words
The prosthesis recited in claim 1, wherein the second margin includes a permanent depression intermediate each end of the second margin, the depression constructed and arranged to be placed proximate the iliac vessels when the prosthesis is positioned on the wall to repair an inguinal hernia.
Claim 6
Dependent Claim
12 words
The prosthesis recited in claim 1, wherein the periphery is generally D-shaped.
Claim 7
Dependent Claim
13 words
The prosthesis recited in claim 1, wherein the second margin is slightly curved.
Claim 8
Dependent Claim
50 words
The prosthesis recited in claim 1, wherein the second margin includes: first and second adjacent curved segments; and a depression disposed between the first and second segments that is adapted to be placed proximate the iliac vessels when the prosthesis is positioned on the wall to repair an inguinal hernia.
Claim 9
Dependent Claim
29 words
The prosthesis recited in claim 1, wherein the peripheral edge is stiffer than the inner portion so that the inner portion can regain the contoured shape after being deformed.
Claim 10
Dependent Claim
15 words
The prosthesis recited in claim 1, wherein the sheet of prosthetic material includes surgical mesh.
Claim 11
Dependent Claim
80 words
A prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a body including a sheet of prosthetic mesh fabric having a plurality of openings therein, the body having a preformed three dimensional shape constructed and arranged to conform to the wall, the body including a preformed permanent depression on a surface thereof that is constructed and arranged to receive the iliac vessels when the prosthesis is positioned on the wall to repair an inguinal hernia.
Claim 12
Dependent Claim
80 words
A prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a body including a sheet of prosthetic mesh fabric having a plurality of openings therein, the body having a preformed three dimensional shape constructed and arranged to conform to the wall, the body including a preformed permanent depression on a surface thereof that is constructed and arranged to receive the iliac vessels when the prosthesis is positioned on the wall to repair an inguinal hernia.
Claim 13
Dependent Claim
22 words
The prosthesis recited in claim 10, wherein the body has a peripheral edge and the depression extends inwardly from the peripheral edge.
Claim 14
Dependent Claim
28 words
The prosthesis recited in claim 11, wherein the body includes first and second curved surfaces, the second curved surface having a steeper incline than the first curved surface.
Claim 15
Dependent Claim
16 words
The prosthesis recited in claim 12, wherein the depression is disposed on the second curved surface.
Claim 16
Dependent Claim
20 words
The prosthesis recited in claim 12, wherein the first curved surface includes a first portion having a generally spherical shape.
Claim 17
Dependent Claim
26 words
The prosthesis recited in claim 14, wherein the first portion of the first curved surface has a radius between approximately 80 mm and approximately 120 mm.
Claim 18
Dependent Claim
31 words
The prosthesis recited in claim 12, wherein the first and second curved surfaces respectively have first and second surface areas, the first surface area being greater than the second surface area.
Claim 19
Dependent Claim
34 words
The prosthesis recited in claim 16, wherein the first curved surface further includes a second portion adjacent the first portion, the second portion having a generally conical shape extending away from the first portion.
Claim 20
Dependent Claim
23 words
The prosthesis recited in claim 11, wherein the body includes an apex and the depression extends from the apex to the peripheral edge.
Claim 21
Dependent Claim
110 words
An implantable prosthesis for repairing a defect in a muscle or tissue wall, the wall having an anatomical shape, the prothesis comprising: a body of resilient surgical mesh fabric having a plurality of openings therein, the body including an inner portion and a peripheral edge surrounding the inner portion, the inner portion having a preformed shape curved in three dimensions that is adapted to conform to the anatomical shape of the wall, the preformed shape having a spherical portion and a conical portion extending from the spherical portion, the peripheral edge being stiffer than the inner portion so that the body can regain the preformed curved shape after being deformed.
Claim 22
Dependent Claim
110 words
An implantable prosthesis for repairing a defect in a muscle or tissue wall, the wall having an anatomical shape, the prothesis comprising: a body of resilient surgical mesh fabric having a plurality of openings therein, the body including an inner portion and a peripheral edge surrounding the inner portion, the inner portion having a preformed shape curved in three dimensions that is adapted to conform to the anatomical shape of the wall, the preformed shape having a spherical portion and a conical portion extending from the spherical portion, the peripheral edge being stiffer than the inner portion so that the body can regain the preformed curved shape after being deformed.
Claim 23
Dependent Claim
43 words
The prosthesis recited in claim 19, wherein the inner portion includes first and second curved surfaces, the first curved surface adjoining the second curved surface along a rounded edge therebetween, the second curved surface having a steeper incline than the first curved surface.
Claim 24
Dependent Claim
21 words
The prosthesis recited in claim 20, wherein the inner portion includes an apex and the rounded edge extends through the apex.
Claim 25
Dependent Claim
26 words
The prosthesis recited in claim 20, wherein the first curved surface includes a curved portion having a radius between about 80 mm and about 120 mm.
Claim 26
Dependent Claim
24 words
The prosthesis recited in claim 20, wherein the first curved surface includes the spherical portion and the conical portion extending from the spherical portion.
Claim 27
Dependent Claim
40 words
The prosthesis recited in claim 20, further comprising a permanent depression disposed in the second curved surface, the depression adapted to be placed proximate the iliac vessels when the prosthesis is positioned on the wall to repair an inguinal hernia.
Claim 28
Dependent Claim
58 words
An implantable prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a body of prosthetic material having a preformed shape constructed and arranged to conform to the wall, the preformed shape of the body including first and second curved surfaces, the second curved surface having a steeper incline than the first curved surface.
Claim 29
Dependent Claim
58 words
An implantable prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a body of prosthetic material having a preformed shape constructed and arranged to conform to the wall, the preformed shape of the body including first and second curved surfaces, the second curved surface having a steeper incline than the first curved surface.
Claim 30
Dependent Claim
64 words
The prosthesis recited in claim 25, wherein the body includes a sheet of material having an inner portion and a peripheral edge surrounding the inner portion, the first curved surface adjoining the second curved surface along a rounded edge therebetween, the rounded edge extending across the inner portion from a first location on the peripheral edge to a second location on the peripheral edge.
Claim 31
Dependent Claim
43 words
The prosthesis as recited in claim 25, wherein the body has a permanent depression formed in the second curved surface, the depression adapted to be placed proximate the iliac vessels when the prosthesis is positioned on the wall to repair an inguinal hernia.
Claim 32
Dependent Claim
41 words
The prosthesis as recited in claim 25, wherein the body includes an inner portion surrounded by a peripheral edge, the peripheral edge being more rigid than the inner portion so that the body can regain the preformed shape after being deformed.
Claim 33
Dependent Claim
20 words
The prosthesis recited in claim 25, wherein the first curved surface includes a generally convex portion having a predetermined radius.
Claim 34
Dependent Claim
19 words
The prosthesis recited in claim 29, wherein the predetermined radius is between approximately 80 mm and approximately 120 mm.
Claim 35
Dependent Claim
127 words
A prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a preformed surgical mesh having a generally curved shape, the mesh having adjacent first and second curved surfaces, the first curved surface including a spherical portion and a conical portion extending from the spherical portion, the second curved surface having a steeper incline than the first surface; a rounded edge disposed between the first and second curved surfaces that is adapted to be placed within the axis of the inguinal ligament when the prosthesis is positioned on the wall to repair an inguinal hernia; and a permanent depression disposed in the second curved surface that is adapted to be placed opposite the iliac vessels when the prosthesis is positioned on the wall.
Claim 36
Dependent Claim
127 words
A prosthesis for repairing a defect in a muscle or tissue wall, the prothesis comprising: a preformed surgical mesh having a generally curved shape, the mesh having adjacent first and second curved surfaces, the first curved surface including a spherical portion and a conical portion extending from the spherical portion, the second curved surface having a steeper incline than the first surface; a rounded edge disposed between the first and second curved surfaces that is adapted to be placed within the axis of the inguinal ligament when the prosthesis is positioned on the wall to repair an inguinal hernia; and a permanent depression disposed in the second curved surface that is adapted to be placed opposite the iliac vessels when the prosthesis is positioned on the wall.
Claim 37
Dependent Claim
37 words
The prosthesis recited in claim 31, wherein the mesh has a maximum dimension between approximately 120 mm and approximately 150 mm and a dimension perpendicular to the maximum dimension between approximately 70 mm and approximately 100 mm.
Claim 38
Dependent Claim
65 words
A prosthesis for repairing a defect in a muscle or tissue wall having an anatomical shape, the prothesis comprising: a sheet of surgical mesh having a preformed shape adapted to conform to the anatomical shape of the wall, the preformed shape of the mesh including a generally convex outer surface, and a generally concave inner surface, a tapered end portion and a curved end portion.
Claim 39
Dependent Claim
65 words
A prosthesis for repairing a defect in a muscle or tissue wall having an anatomical shape, the prothesis comprising: a sheet of surgical mesh having a preformed shape adapted to conform to the anatomical shape of the wall, the preformed shape of the mesh including a generally convex outer surface, and a generally concave inner surface, a tapered end portion and a curved end portion.
Claim 40
Dependent Claim
40 words
The prosthesis recited in claim 33, wherein the mesh includes an inner portion surrounded by a peripheral edge, the inner surface of the inner portion defining a cavity having an open end surrounded by the peripheral edge of the mesh.
Claim 41
Dependent Claim
43 words
The prosthesis recited in claim 33, wherein the mesh includes an inner portion and a peripheral edge surrounding the inner portion, the peripheral edge being more rigid than the inner portion so that the mesh can regain the preformed shape after being deformed.
Claim 42
Dependent Claim
24 words
The prosthesis recited in claim 35, wherein the peripheral edge is smooth to prevent the mesh from catching when being positioned on the wall.
Claim 43
Dependent Claim
18 words
The prosthesis recited in claim 33, wherein the mesh includes a spherical component at the curved end portion.
Claim 44
Dependent Claim
18 words
The prosthesis recited in claim 33, wherein the mesh includes a triangular component at the tapered end portion.
Claim 45
Dependent Claim
15 words
The prosthesis recited in claim 33, wherein the mesh has a generally D-shaped peripheral edge.
Claim 46
Dependent Claim
24 words
The prosthesis recited in claim 25, wherein the first curved surface includes a spherical portion and a conical portion extending from the spherical portion.
Claim 47
Dependent Claim
21 words
The prosthesis recited in claim 40, wherein the second curved surface adjoins the first curved surface along a rounded edge therebetween.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-20 | 2003-03-22 | 2003-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-20 | 2007-03-22 | 2007-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-20 | 2011-03-22 | 2011-09-21 | $7700.00 | Window Closed / Lapsed |