Patent US2527222A successfully refreshed from Google Patents.
EP0072232A2
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Polyolefin surgical devices and method for producing the same
Assignee: Ethicon Inc
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Filing: 1982-08-09
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Granted: —
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Expires: 2002-08-09
Abstract
Abstract A thermally formed polyolefin surgical device and method for manufacturing the same.
Inventors
- 👤 Darline A. Mellon
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/02; A; A61; A61B; A61B17/00; A61B17/12; A61B17/122; A61L; A61L31/00; A61L31/04; A61L31/048; B29C71/0063; B29C45/00; B29K; B29K2023/00; B29K2023/10; B29K2023/12; B29L; B29L2031/00; B29L2031/22
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
24 words
A thermally formed polyolefin surgical device having both audible and tactile properties and functional integrity, said polyolefin having a crystallinity in excess of 45%.
Claim 2
Dependent Claim
24 words
A thermally formed polyolefin surgical device having both audible and tactile properties and functional integrity, said polyolefin having a crystallinity in excess of 45%.
Claim 3
Dependent Claim
14 words
An injection molded surgical device according to Claim 1 wherein the polyolefin is polypropylene.
Claim 4
Dependent Claim
18 words
A surgical device according to Claim 1 or Claim 2 wherein the surgical device is a ligating clip.
Claim 5
Dependent Claim
18 words
A surgical device according to Claims 1, 2, or 3 wherein the crystallinity is in excess of 50%.
Claim 6
Dependent Claim
53 words
An injection molded polypropylene ligating clip having two leg members connected at their proximal ends by a resilient hinge portion and containing locking means disposed at the distal ends of the leg members, said clip having audible and tactile properties and functional integrity, and said polypropylene having a crystallinity in excess of 45%.
Claim 7
Dependent Claim
53 words
An injection molded polypropylene ligating clip having two leg members connected at their proximal ends by a resilient hinge portion and containing locking means disposed at the distal ends of the leg members, said clip having audible and tactile properties and functional integrity, and said polypropylene having a crystallinity in excess of 45%.
Claim 8
Dependent Claim
15 words
A ligating clip in accordance with Claim 5 having a crystallinity in excess of 50%.
Claim 9
Independent Claim
46 words
A method of producing an improved thermally formed, polyolefin, surgical device having both audible and tactile properties comprising heating the formed device to a temperature of 90°C. to 150°C. for a period of time sufficient to increase the crystallinity of the polyolefin to at least 45%.
Claim 10
Independent Claim
46 words
A method of producing an improved thermally formed, polyolefin, surgical device having both audible and tactile properties comprising heating the formed device to a temperature of 90°C. to 150°C. for a period of time sufficient to increase the crystallinity of the polyolefin to at least 45%.
Claim 11
Dependent Claim
11 words
A method according to Claim 7 wherein the polyolefin is polypropylene.
Claim 12
Dependent Claim
16 words
A method according to Claim 7 or 8 wherein the device is an injection molded device.
Claim 13
Independent Claim
19 words
A method according to any one of Claims 7 to 9 wherein the surgical device is a ligating clip.
Claim 14
Dependent Claim
36 words
A method according to Claim 10 wherein the ligating clip comprises two leg members connected at their proximal ends by a resilient hinge and containing locking means disposed at the distal ends of the leg members.
Claim 15
Independent Claim
24 words
A method according to any one of Claims 7 to 11 wherein the device is heated to a temperature of from 100°C. to 115°C.
Claim 16
Independent Claim
31 words
A method according to any one of Claims 7 to 12 wherein the surgical device is heated for a period of time sufficient to increase the crystallinity to at least 50%.
Claim 17
Independent Claim
27 words
A method according to any one of Claims 7 to 13 wherein the surgical device is heated for a period of time of at least twenty minutes.
Claim 18
Dependent Claim
27 words
15 . A method accordihg to any one of Claims 7 to 14 wherein the device is heated in the absence of any substantial oxygen or moisture.
Claim 19
Independent Claim
21 words
A method according to any, one of Claims 7 to 15 therein the device is heated in an atmosphere of nitrogen.
References Cited (Backward Citations)
No citation records indexed.
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