GB2222954A
Expired / Lapsed
GB
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Implant
Assignee: Ethicon Inc
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Filing: 1989-08-30
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Granted: —
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Expires: 2009-08-30
Abstract
Abstract The invention relates to an implant of resorbable material, which is characterized in that it comprises a woven or knitted tubular or flat structure, whose filaments or fibres either completely or portionwise comprise at least two different resorbable materials with different melting points, which, after heating to a temperature above the melting point of the resorbable material with the lower melting point and below the melting point of the other resorbable material with the higher melting point, are shaped or pressed to a composite of the desired configuration. Tubular structures may additionally comprise a woven or knitted tube of one resorbable material (2a) which is completely or portionwise covered or coated with an inner or outer, film-like layer (10) of the other resorbable material. <IMAGE>
Inventors
- 👤 Lothar Schilder
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-22 22:09
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/14; A61L27/18; A61F; A61F2/00; A61F2/0063; A61F2/02; A61F2/04; A61F2/06; A61F2/10; A61F2/105; A61L27/50; A61L27/58; A61L31/00; A61L31/04; A61L31/06; D; D04; D04B; D04B1/00; D04B1/14; D04B1/16; D04B1/22; D04B1/225; A61F2/0077; A61F2002/0068; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30032; A61F2002/30044; A61F2002/3006; A61F2002/30062; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2210/00; A61F2210/0004; A61F2230/00; A61F2230/0063; A61F2230/0069; A61F2250/00; A61F2250/0014; A61F2250/003; A61F2250/0046; D10; D10B; D10B2401/00; D10B2401/04; D10B2401/041; D10B2401/12; D10B2509/00; D10B2509/06; D10B2509/08
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
109 words
Tubular implant of resorbable material, characterized in that it comprises a woven or knitted tube (2), whose filaments or fibres a) either completely or portionwise comprise at least two
different resorbable materials (2a, 2b) with different
melting points or b) one resorbable material (2a) and are coated or covered
completely or portionwise with an inner or outer
film-like layer (10) of the other resorbable material, which, after heating to a temperature above the melting point of the resorbable material (2b) with the lower melting point and below the melting point of the other resorbable material (2a) with the higher melting point are shaped or strengthened to a tubular composite.
Claim 2
Dependent Claim
109 words
Tubular implant of resorbable material, characterized in that it comprises a woven or knitted tube (2), whose filaments or fibres a) either completely or portionwise comprise at least two
different resorbable materials (2a, 2b) with different
melting points or b) one resorbable material (2a) and are coated or covered
completely or portionwise with an inner or outer
film-like layer (10) of the other resorbable material, which, after heating to a temperature above the melting point of the resorbable material (2b) with the lower melting point and below the melting point of the other resorbable material (2a) with the higher melting point are shaped or strengthened to a tubular composite.
Claim 3
Dependent Claim
25 words
Implant according to claim 1, characterized in that the outside of the tube is covered or coated with a felt-like layer (8) of resorbable material.
Claim 4
Dependent Claim
50 words
Implant according to claim 2, characterized in that the tube is covered in felt-like manner with a mixture of 1 to 20 mm long filaments or fibres of at least two different resorbable materials with different melting points and is heated and shaped at a temperature of 100 to l200C.
Claim 5
Dependent Claim
16 words
Implant according to claim 1, characterized in that the resorbable materials have a different resorption time.
Claim 6
Dependent Claim
30 words
Implant according to claim 1, characterized in that the fibres or filaments comprise a lower melting poly-p-dioxanone and a higher melting polyglactin in a mixing ratio of 5:1 to 1:15.
Claim 7
Dependent Claim
23 words
Implant according to claim 5, characterized in that the mixing ratio of the fibres or filaments of poly-p-dioxanone and polyglactin is approximately 1:3.
Claim 8
Dependent Claim
25 words
Implant according to claim 1, characterized in that the pores or mesh sizes in the woven or knitted, tubular composite is 0.1 to 4 mm.
Claim 9
Dependent Claim
20 words
Implant according to claim 1, characterized in that the filaments or fibres have a diameter of 10 to 200 dtex.
Claim 10
Dependent Claim
59 words
Implant according to claim 1, characterized in that the tube has reinforced ring regions (6) with a width of 1 to 5 mm, whose fibres and filaments comprise a mixture of lower melting poly-p-dioxanone and a higher melting polyglactin in a mixing ratio of 5:1 to 1:1, whilst the gaps comprise a mixture in the ratio 1:1 to 0.5:15.
Claim 11
Dependent Claim
48 words
Process for producing a tube according to claim 1, characterized in that the tube produced from fibres or filaments of at least two different resorbable materials with different melting points is drawn onto a shaping bar and heated under inert gas to a temperature of 100 to l200C.
Claim 12
Dependent Claim
86 words
Process for producing a tube according to claim 1, characterized in that a tubular film (10) of a resorbable material is applied to a shaping bar and a woven or knitted tube of resorbable material is drawn over the shaping bar covered with the film, in which either the tubular film (10) or the tube (2) or a part of the filaments or fibres thereof are formed from a lower melting, resorbable plastic and are heated under inert gas to a temperature of 100 to l200C.
Claim 13
Dependent Claim
28 words
Process according to claims 10 and 11, characterized in that onto the tube located on the shaping bar are pressed felt filaments, followed by heating under inert gas.
Claim 14
Dependent Claim
75 words
Flat implant of resorbable material, characterized in that it comprises woven or knitted gauzes, strips or ribbons, whose filaments or fibres comprise at least two different resorbable materials with different melting points and which, after melting to a temperature above the melting point of the resorbable material with the lower melting point and below the melting point of the other resorbable material with the higher melting point, are shaped or pressed to a flat composite.
Claim 15
Dependent Claim
75 words
Flat implant of resorbable material, characterized in that it comprises woven or knitted gauzes, strips or ribbons, whose filaments or fibres comprise at least two different resorbable materials with different melting points and which, after melting to a temperature above the melting point of the resorbable material with the lower melting point and below the melting point of the other resorbable material with the higher melting point, are shaped or pressed to a flat composite.
Claim 16
Dependent Claim
16 words
Implant according to claim 13, characterized in that the resorbable materials have a different resorption time.
Claim 17
Dependent Claim
30 words
Implant according to claim 1, characterized in that the fibres or filaments comprise a lower melting poly-p-dioxanone and a higher melting polyglactin in a mixing ratio of 5:1 to 1:15.
Claim 18
Dependent Claim
23 words
Implant according to claim 15, characterized in that the mixing ratio of the fibres or filaments of poly-p-dioxanone and polyglactin is approximately 1:3.
Claim 19
Dependent Claim
25 words
Implant according to claim 1, characterized in that the pores or mesh sizes in the woven or knitted flat composite are 0.1 to 4 mm.
Claim 20
Dependent Claim
20 words
Implant according to claim 1, characterized in that the filaments or fibres have a diameter of 10 to 200 dtex.
Claim 21
Dependent Claim
63 words
Implant according to claim 1, characterized in that the woven or knitted material or the flat composite is covered in felt-like manner with a mixture of 1 to 20 mm long filaments or fibres of at least two different resorbable materials in knitted or woven form and having different melting points and is heated and shaped at a temperature of 100 to 1200C.
Claim 22
Dependent Claim
13 words
, An implant, substantially as hereinbefore described
with reference to the accompanying drawings.
Claim 23
Dependent Claim
13 words
, An implant, substantially as hereinbefore described
with reference to the accompanying drawings.
Claim 24
Dependent Claim
16 words
A process for producing an implant, substantially
as hereinbefore described with refernce to the accompanying drawings.
Claim 25
Dependent Claim
16 words
A process for producing an implant, substantially
as hereinbefore described with refernce to the accompanying drawings.
References Cited (Backward Citations)
No citation records indexed.
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