EP0230672A2
Expired / Lapsed
EP
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Method for implantation of mammary prosthesis
Assignee: American Hospital Supply Corp
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Filing: 1986-12-30
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Granted: —
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Expires: 2006-12-30
Abstract
Abstract A method for implantation of a mammary prosthesis involves interposing a barrier layer of soft biological tissue at the interface of the prosthesis and the surrounding host tissue. This barrier layer reduces the formation of fibrous connective tissue capsules and subsequent hardening of the scar tissue that may occur following implantation of mammary prosthesis.
Inventors
- 👤 Aws Salim Nashef
- 👤 Todd Duncan Campbell
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 12:53
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/14; A61L27/22; A61L27/24; A61F; A61F2/00; A61F2/02; A61F2/12; A61K; A61K35/00; A61K35/12; A61K35/30; A61K35/32; A61K35/34; A61K35/48; A61K35/50; A61L27/36; A61L27/3683; A61F2310/00; A61F2310/00005; A61F2310/00365
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
59 words
The use of soft biological tissue fixed with a fixing agent as a barrier layer having dimensions sufficient to substantially cover the outer surface of a mammary prosthesis, wherein said barrier layer is interposed at the interface of said mammary prosthesis and the surrounding host tissue, thereby inhibiting the formation of a fibrous connective tissue capsule around said prosthesis.
Claim 2
Dependent Claim
59 words
The use of soft biological tissue fixed with a fixing agent as a barrier layer having dimensions sufficient to substantially cover the outer surface of a mammary prosthesis, wherein said barrier layer is interposed at the interface of said mammary prosthesis and the surrounding host tissue, thereby inhibiting the formation of a fibrous connective tissue capsule around said prosthesis.
Claim 3
Dependent Claim
20 words
The use of claim 1, wherein the barrier layer comprises naturally occurring soft biological tissue fixed with a fixing agent.
Claim 4
Dependent Claim
16 words
The use of claim 2, wherein the biological tissue is epithelial tissue or fibrous connective tissue.
Claim 5
Dependent Claim
23 words
The use of claim 3, wherein the biological tissue is chosen from pericardial tissue, fascia lata, dura mater, amnion, tendon, ligament or cartilage.
Claim 6
Dependent Claim
12 words
The use of claim 4, wherein the biological tissue is pericardial tissue.
Claim 7
Dependent Claim
34 words
The use of claims 2, 3, 4 or 5, wherein said biological tissue is taken from an animal source selected from bovine, porcine, horse, sheep, kangaroo, or rabbit sources, or from a human cadaver.
Claim 8
Dependent Claim
13 words
The use of claim 1 or 2, wherein the fixing agent is glutaraldehyde.
Claim 9
Dependent Claim
20 words
The use of claim 1 or 2, wherein the biological tissue is treated to render it substantially resistant to calcification.
Claim 10
Dependent Claim
32 words
The use of claim 1, wherein said biological tissue comprises collagen or a reconstituted collagen substitute chosen from collagen-fabric films, reconstituted collagen on a synthetic mesh, collagen sponge grafts, or collagen membranes.
Claim 11
Dependent Claim
65 words
A sheath for interposing between an implanted mammary prosthesis and the surrounding tissue of a host, which comprises a barrier layer of soft biological tissue, fixed with a fixing agent, having a means therein for attachment of said prosthesis to the host, and having overall dimensions sufficient to substantially cover the prosthesis, thereby inhibiting the formation of a fibrous connective tissue capsule around said prosthesis.
Claim 12
Dependent Claim
65 words
A sheath for interposing between an implanted mammary prosthesis and the surrounding tissue of a host, which comprises a barrier layer of soft biological tissue, fixed with a fixing agent, having a means therein for attachment of said prosthesis to the host, and having overall dimensions sufficient to substantially cover the prosthesis, thereby inhibiting the formation of a fibrous connective tissue capsule around said prosthesis.
Claim 13
Dependent Claim
20 words
The sheath of claim 10, wherein said barrier layer comprises naturally occurring biological tissue fixed with a fixing agent. -
Claim 14
Dependent Claim
16 words
The sheath of claim 11, wherein said biological tissue is epithelial tissue or fibrous connective tissue.
Claim 15
Dependent Claim
23 words
The sheath of claim 12, wherein said biological tissue is chosen from pericardial tissue, fascia lata, dura mater, amnion, tendon, ligament, or cartilage.
Claim 16
Dependent Claim
12 words
The sheath of claim 13, wherein said biological tissue is pericardial tissue.
Claim 17
Dependent Claim
35 words
The sheath of claims 10, 11, 12, 13 or 14, wherein said biological tissue is taken from an animal source selected from bovine, porcine, horse, sheep, kangaroo, or rabbit sources, or from a human cadaver.
Claim 18
Dependent Claim
13 words
The sheath of claim 10 or 11, wherein the fixing agent is glutaraldehyde.
Claim 19
Dependent Claim
18 words
The sheath of claim 10, wherein said biological tissue is treated to render it substantially resistant to calcification.
Claim 20
Dependent Claim
32 words
The sheath of claim 10, wherein said biological tissue comprises collagen or a reconstituted collagen substitute chosen from collagen-fabric films, reconstituted collagen on a synthetic mesh, collagen sponge grafts, or collagen membranes.
Claim 21
Dependent Claim
24 words
The sheath of claim 10, wherein the attachment means is an aperture through said soft biological tissue covering the posterior surface of the prosthesis.
Claim 22
Dependent Claim
30 words
The sheath of claim 10, wherein said biological tissue covering the anterior surface of the prosthesis is contoured to conform to the shape of the anterior surface of the prosthesis.
Claim 23
Dependent Claim
16 words
The sheath of claim 10, which comprises two or more separate sheets of said biological tissue.
Claim 24
Dependent Claim
46 words
The sheath of claim 21, wherein one sheet of said biological tissue is interposed between the anterior surface of the prosthesis and the host tissue, and a second sheet of said biological tissue is interposed between the posterior surface of the prosthesis and the host tissue.
Claim 25
Dependent Claim
19 words
The sheath of claim 21, wherein said sheets of biological tissue are sutured together to form a single sheath.
Claim 26
Dependent Claim
13 words
The sheath of claim 10, which comprises a single sheet of biological tissue.
References Cited (Backward Citations)
No citation records indexed.
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