EP0238223A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tissue augmentation device
Assignee: 3M Co
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Filing: 1987-02-25
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Granted: —
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Expires: 2007-02-25
Abstract
Abstract A tissue augmentation device (10) is disclosed for use in parallel with biological tissue in the repair or reconstruction of ligaments and tendons. The device comprises at least one strap-like element formed of a stable biocompatible material and a biodegradable element connected in series with the strap-like element. The device is adapted for fixation at each end thereof to the anatomical structures connected by the ligament or tendon.
Inventors
- 👤 Craig L.§c/o Minnesota Mining and Van Kampen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:00
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61F2002/0817; A61F2002/0823; A61F2002/0829; A61F2002/0835; A61F2002/0847; A61F2002/0858; A61F2002/087; A61F2002/0876; A61F2002/0882; A61F2002/0888; A61F2210/00; A61F2210/0004
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
142 words
A tissue augmentation device designed to be used in parallel with biological tissue in the repair or reconstruction of a ligament or tendon comprising at least one strap-like element formed of a stable biocompatible material having sufficient mechanical properties to support at least the working loads normally supported by said ligament or tendon characterized by the presence of a biodegradable element connected in series with said strap-like element at a terminal portion thereof; said device being further characterized by being adapted for fixation at both ends thereof to the anatomical structures connected by said ligament or tendon and having sufficient mechanical properties to support at least the working loads normally supported by said ligament or tendon at the time of implantation, and wherein said biodegradable element gradually loses its load-bearing capability after implantation thereby gradually transferring increased loads to said biological tissue.
Claim 2
Dependent Claim
142 words
A tissue augmentation device designed to be used in parallel with biological tissue in the repair or reconstruction of a ligament or tendon comprising at least one strap-like element formed of a stable biocompatible material having sufficient mechanical properties to support at least the working loads normally supported by said ligament or tendon characterized by the presence of a biodegradable element connected in series with said strap-like element at a terminal portion thereof; said device being further characterized by being adapted for fixation at both ends thereof to the anatomical structures connected by said ligament or tendon and having sufficient mechanical properties to support at least the working loads normally supported by said ligament or tendon at the time of implantation, and wherein said biodegradable element gradually loses its load-bearing capability after implantation thereby gradually transferring increased loads to said biological tissue.
Claim 3
Independent Claim
22 words
The device according to claim l further characterized by two strap-like elements connected together at their terminal portions by said biodegradable element.
Claim 4
Dependent Claim
17 words
The device according to claim 2 further characterized in that said biodegradable element is a bioabsorbable suture.
Claim 5
Dependent Claim
21 words
The device according to claim 3 further characterized in that said suture stitches together overlapped terminal portions of said strap-like elements.
Claim 6
Dependent Claim
46 words
The device according to claim 2 further characterized in that said biodegradable element is a biodegradable bobbin, comprising two radial flanges spaced apart and connected by a shaft, at least one of said flanges being capable of placement through openings in both of said strap-like elements.
Claim 7
Independent Claim
31 words
The device according to claim l further characterized in that said biodegradable element comprises a fastener for fixing a terminal portion of said strap-like member to one of said anatomical structures.
Claim 8
Dependent Claim
18 words
The device according to claim 6 further characterized in that said fastener comprises a biodegradable bushing and screw.
Claim 9
Dependent Claim
51 words
The device according to claim 6 further characterized in that said fastener comprises a receiver having a hollow cylindrical portion and a plurality of legs, which receiver is adapted for insertion into a hole formed in a bone; and a post for insertion into said receiver thereby expanding said legs outwardly.
Claim 10
Independent Claim
18 words
The device according to claim l further characterized in that said strap-like member comprises a synthetic polymeric yarn.
Claim 11
Dependent Claim
15 words
l0. The device according to claim 9 further characterized in that said yarn is braided.
Claim 12
Independent Claim
18 words
The device according to claim l0 further characterized in that said yarn is formed into an openwork structure.
Claim 13
Dependent Claim
25 words
The device according to claim 9 further characterized in that said polymeric yarn is selected from the group consisting of polyolefin, polyester, polytetrafluoroethylene and polyaramid.
Claim 14
Independent Claim
16 words
The device according to claim l2 further characterized in that said polymeric yarn is a polyolefin.
Claim 15
Independent Claim
15 words
The device according to claim l3 further characterized in that said polyolefin yarn is polypropylene.
Claim 16
Independent Claim
21 words
The device according to claim l3 further characterized in that said polyolefin yarn is polybutylene or ultra high molecular weight polyethylene.
Claim 17
Independent Claim
15 words
The device according to claim l further characterized in that said biodegradable element is bioabsorbable.
Claim 18
Independent Claim
34 words
The device according to claim l further characterized in that said biodegradable element is formed of a polymeric material selected from the group consisting of polyesteramide, polydioxanone, polylactic acid, polyglycolic acid and copolymers thereof.
Claim 19
Independent Claim
27 words
The device according to claim l further characterized by being capable of bearing a tensile load of at least about 500 Newtons at the time of implantation.
Claim 20
Independent Claim
33 words
The device according to claim l further characterized by being capable of bearing a tensile load of at least about l00 Newtons for one month and no longer than two years after implantation.
Claim 21
Dependent Claim
67 words
A kit for repairing or reconstructing a ligament or tendon with a strap-like element formed of a stable biocompatible material having sufficient mechanical properties to support at least the working loads normally supported by said ligament or tendon further characterized by one or more biodegradable fasteners for affixing one of the terminal ends of said strap-like member to the anatomical structures connected by said ligament or tendon.
Claim 22
Dependent Claim
67 words
A kit for repairing or reconstructing a ligament or tendon with a strap-like element formed of a stable biocompatible material having sufficient mechanical properties to support at least the working loads normally supported by said ligament or tendon further characterized by one or more biodegradable fasteners for affixing one of the terminal ends of said strap-like member to the anatomical structures connected by said ligament or tendon.
References Cited (Backward Citations)
No citation records indexed.
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