EP0734736A1
Expired / Lapsed
EP
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Medical device and method for producing the same
Assignee: Bio Engineering Laboratories Ltd
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Filing: 1996-03-29
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Granted: —
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Expires: 2016-03-29
Abstract
Abstract A medical device consisting essentially of stratum compactum of tissue membrane is provided. The present invention further provides a method for producing a medical device consisting essentially of stratum compactum of tissue membrane. The method comprises the steps of: separating tissue membrane including stratum compactum from tissue; sterilizing or disinfecting the separated tissue membrane; and removing all other layers except the stratum compactum from the sterilized or disinfected tissue membrane using an enzyme.
Inventors
- 👤 Tooru Yui
- 👤 Tokuzo Nakagawa
- 👤 Kazuo Kondo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 22:19
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/36; A61L27/3683; A61L15/00; A61L15/16; A61L15/40; A61L27/3604; A61L27/40; A61L27/44; A61L27/48; A61L31/00; A61L31/005; A61L31/12; A61L31/125; A61L31/129; C; C08; C08L; C08L89/00; C08L89/04; C08L89/06; Y; Y10; Y10S; Y10S623/00; Y10S623/901
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
11 words
A medical device consisting essentially of stratum compactum of tissue membrane.
Claim 2
Dependent Claim
14 words
The medical device according to claim 1, wherein the tissue membrane is human amnion.
Claim 3
Dependent Claim
34 words
The medical device according to claim 1 or 2, wherein a matrix pattern on a top face of the stratum compactum is asymmetrical with respect to a matrix pattern on a bottom face thereof.
Claim 4
Dependent Claim
18 words
The medical device according to any one of claims 1 to 3, wherein the medical device is membranous.
Claim 5
Dependent Claim
18 words
The medical device according to any one of claims 1 to 3, wherein the medical device is fibrous.
Claim 6
Dependent Claim
18 words
The medical device according to any one of claims 1 to 3, wherein the medical device is tubular.
Claim 7
Dependent Claim
20 words
A composite medical device comprising: a medical material consisting essentially of stratum compactum of tissue membrane; and a bioabsorbable material.
Claim 8
Dependent Claim
29 words
The composite medical device according to claim 7, wherein the bioabsorbable material is polyglycolic acid, polylactic acid, or a copolymer including glycolic acid or lactic acid as main components.
Claim 9
Dependent Claim
35 words
The composite medical device according to claim 7 or 8, wherein the bioabsorbable material is a mesh-like material having an average diameter of a pore in the range of about 100 to about 2000 µm.
Claim 10
Dependent Claim
46 words
The composite medical device according to claim 7 or 8, wherein the medical material is membranous and the bioabsorbable material is flat sheet-shaped, and the composite medical device has a sandwich-like structure in which the bioabsorbable material is interposed between a pair of membranous medical materials.
Claim 11
Dependent Claim
33 words
The composite medical device according to claim 7 or 8, wherein the medical material is membranous and the medical material is reinforced with stitching of a fibrous material made of the bioabsorbable material.
Claim 12
Independent Claim
53 words
A method for producing a medical device consisting essentially of stratum compactum of tissue membrane, comprising the steps of: separating tissue membrane including stratum compactum from tissue; sterilizing or disinfecting the separated tissue membrane; and removing all other layers except the stratum compactum from the sterilized or disinfected tissue membrane using an enzyme.
References Cited (Backward Citations)
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