US4655221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of using a surgical repair mesh
Assignee: Covidien AG
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Filing: 1985-05-06
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Granted: 1987-04-07
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Expires: 2005-05-06
Abstract
Abstract A polyglycolic acid mesh sling sewn above the pelvic inlet prevents small bowel descent into the true pelvis during radiation therapy for various pelvic malignancies.
Inventors
- 👤 Dennis F. Devereux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:54
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/16; A; A61; A61F; A61F2/00; A61F2/0063; A61L; A61L27/00; A61L27/14; A61L27/18; A61L27/50; A61L27/58; A61L31/00; A61L31/04; A61L31/06; A61L31/14; A61L31/148; A61F2210/00; A61F2210/0004; D10; D10B; D10B2509/00; D10B2509/08
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
73 words
A surgical method of using a material manufactured from a bioabsorbable polymer in a warm-blooded mammal comprising: opening the abdomen of said mammal; elevating at least one pelvic organ essentially above the true pelvic inlet; placing the material beneath the organ or organs from the elevating step; attaching said material to the wall of the peritoneal cavity, thereby preventing said organ or organs from descending into said pelvic inlet; and closing said abdomen.
Claim 2
Dependent Claim
73 words
A surgical method of using a material manufactured from a bioabsorbable polymer in a warm-blooded mammal comprising: opening the abdomen of said mammal; elevating at least one pelvic organ essentially above the true pelvic inlet; placing the material beneath the organ or organs from the elevating step; attaching said material to the wall of the peritoneal cavity, thereby preventing said organ or organs from descending into said pelvic inlet; and closing said abdomen.
Claim 3
Dependent Claim
12 words
A method of claim 1 wherein said material is a textile material.
Claim 4
Dependent Claim
23 words
A method of claim 1 wherein said pelvic organ is selected from the group consisting of the small bowel, liver, spleen, and stomach.
Claim 5
Dependent Claim
13 words
A method of claim 3 wherein the pelvic organ is the small bowel.
Claim 6
Dependent Claim
20 words
A method of claim 1 comprising elevating at least the small bowel, liver, spleen and stomach out of the pelvis.
Claim 7
Dependent Claim
13 words
A method of claim 1 comprising suturing said material around the peritoneal cavity.
Claim 8
Dependent Claim
13 words
A method of claim 1 comprising stapling said material around the peritoneal cavity.
Claim 9
Independent Claim
105 words
A method of using a knitted surgical material in a warm-blooded mammal, said material comprising a plurality of filaments, each filament manufactured from a polymer having a glycolic acid ester linkage, said filaments bundled or twisted into a yarn, and said yarn knitted into said material, the method comprising: opening of the abdomen of said mammal; elevating at least one pelvic organ essentially out of the true pelvis; placing the material beneath the organ or organs from the elevating step; attaching said material to the wall of the peritoneal cavity, thereby preventing said organ or organs from descending into said pelvis; and closing said abdomen.
Claim 10
Independent Claim
105 words
A method of using a knitted surgical material in a warm-blooded mammal, said material comprising a plurality of filaments, each filament manufactured from a polymer having a glycolic acid ester linkage, said filaments bundled or twisted into a yarn, and said yarn knitted into said material, the method comprising: opening of the abdomen of said mammal; elevating at least one pelvic organ essentially out of the true pelvis; placing the material beneath the organ or organs from the elevating step; attaching said material to the wall of the peritoneal cavity, thereby preventing said organ or organs from descending into said pelvis; and closing said abdomen.
Claim 11
Dependent Claim
12 words
A method of claim 8 wherein said knitted material is a mesh.
Claim 12
Dependent Claim
12 words
A method of claim 8 wherein said knitted material is a fabric.
Claim 13
Dependent Claim
13 words
A method of claim 9 or 10 wherein said polymer is a homopolymer.
Claim 14
Dependent Claim
13 words
A method of claim 9 or 10 wherein said polymer is a copolymer.
Claim 15
Dependent Claim
28 words
A method of claim 9 wherein said yarn is greater than about 60 denier and contains up to 4 plys, each ply having greater than about 25 filaments.
Claim 16
Dependent Claim
21 words
A method of claim 10 wherein said yarn is up to about 150 denier and contains up to about 75 filaments.
Claim 17
Dependent Claim
21 words
A method of claim 14 wherein said yarn is about 100 to 135 denier and contains about 40 to 75 filaments.
Claim 18
Dependent Claim
29 words
A method of claim 14 or 15 manufactured on a 48 gauge Raschel knitting machine wherein the stitch design is Front Bar: 1/0 0/1, and Back Bar: 1/0 4/5.
Claim 19
Dependent Claim
18 words
A method of claim 16 wherein the weight of said fabric is about 4 to 10 oz./sq. yd.
Claim 20
Dependent Claim
20 words
A method of claim 17 wherein the quality of said fabric is about 10 to 20 inches per 480 courses.
Claim 21
Independent Claim
107 words
A method of using a knitted surgical mesh in a warm-blooded mammal, said mesh comprising a plurality of filaments, each filament manufactured from a polymer having a glycolic acid ester linkage, said filaments bundled or twisted into a yarn, and said yarn knitted into a mesh, the method comprising: opening the abdomen of said mammal; elevating at least the small bowel essentially out of the true pelvis; placing said mesh adjacent to the intra-abdominal wall and beneath at least said bowel from the elevating step; suturing said mesh to said intra-abdominal wall, thereby preventing at least said bowel from descending into said pelvis; and closing said abdomen.
Claim 22
Independent Claim
107 words
A method of using a knitted surgical mesh in a warm-blooded mammal, said mesh comprising a plurality of filaments, each filament manufactured from a polymer having a glycolic acid ester linkage, said filaments bundled or twisted into a yarn, and said yarn knitted into a mesh, the method comprising: opening the abdomen of said mammal; elevating at least the small bowel essentially out of the true pelvis; placing said mesh adjacent to the intra-abdominal wall and beneath at least said bowel from the elevating step; suturing said mesh to said intra-abdominal wall, thereby preventing at least said bowel from descending into said pelvis; and closing said abdomen.
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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) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |