GB2136533A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Artificial heart valve
Assignee: WESSEX MEDICAL LAB Ltd
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Filing: 1983-02-08
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Granted: —
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Expires: 2003-02-08
Abstract
Abstract A bioprosthetic heart valve suitable for natural aortic, pulmonary, mitral or tricuspid valve replacement. The valve comprises cylindrical valvular tissue 1, for example a porcine valve, and a waisted cylindrical support frame 3 therefor, preferably covered with a biologically compatible material 7, in which the respective cylindrical walls of the valve and frame are substantially coincidentally arranged. Desirably the support frame has at least two integral commissure support loops and is machined from an acetal homo- or co-polymer plastics material. <IMAGE>
Inventors
- 👤 William Henry Wain
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-22 23:06
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/36; A61L27/3604; A61L27/3625; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61L27/14; A61L27/18; A61L27/50; A61L27/507
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
28 words
A bioprosthetic heart valve comprising substantially cylindrical valvulartissue and a substantially cylindrical supportframetherefor in which the respective cylindrical walls of the valve and frame are substantially coincidentally arranged.
Claim 2
Dependent Claim
28 words
A bioprosthetic heart valve comprising substantially cylindrical valvulartissue and a substantially cylindrical supportframetherefor in which the respective cylindrical walls of the valve and frame are substantially coincidentally arranged.
Claim 3
Dependent Claim
15 words
Avalve according to Claim 1 in which the valvular tissue comprises a porcine heart valve.
Claim 4
Dependent Claim
17 words
Avalve according to Claim 1 or Claim 2 in which the supportframe has a waisted circumferential ring.
Claim 5
Dependent Claim
22 words
Avalve according to any one of Claim 1-3 in
which the supportframe has at leasttwo commissure
support loops in the circumferential plane.
Claim 6
Dependent Claim
17 words
Avalve according to Claim 4in which the
support loops are closed and integral with the support
frame.
Claim 7
Dependent Claim
18 words
A valve according to any one of the preceding claims in which the supportframe comprises a plastics material.
Claim 8
Dependent Claim
18 words
Avalve according to Claim 6 in which the plastics material is derived from an acetal homo- or co-polymer.
Claim 9
Dependent Claim
26 words
Avalve according to any one of the preceding claims in which the supportframe is covered with a biologically compatible material to which thevalvular tissue is attached.
Claim 10
Dependent Claim
10 words
Avalve according to Claim 8 in which the material comprisesatextilefabric.
Claim 11
Dependent Claim
13 words
Avalve according to Claim 9 in which the fabric comprises knitted polyester fibre.
Claim 12
Dependent Claim
19 words
A valve according to any one of the preceding claims in which the supportframe includes an integral sewing ring.
Claim 13
Dependent Claim
14 words
Avalve according to Claim 11 in which the sewing ring incorporates a radio-opaque marker.
Claim 14
Dependent Claim
19 words
Avalve according to any one of the preceding claims in which the outflow aspectthereof is covered by pericardial tissue.
Claim 15
Independent Claim
45 words
A method of manufacturing a bioprosthetic heart valve in which substantially cylindrical valvular tissue is supported on a substantially cylindrical frame with a waisted circumferential ring having at Ieasttwo commissure support loops in the circumferential plane so thattissue located within theframe lies substantially coincidentally therewith.
Claim 16
Independent Claim
45 words
A method of manufacturing a bioprosthetic heart valve in which substantially cylindrical valvular tissue is supported on a substantially cylindrical frame with a waisted circumferential ring having at Ieasttwo commissure support loops in the circumferential plane so thattissue located within theframe lies substantially coincidentally therewith.
Claim 17
Dependent Claim
23 words
A method according to Claim 14 in which the supportframe is first covered with a biologically compatible material to which thevalvulartissue is attached.
Claim 18
Dependent Claim
19 words
A bioprosthetic heart valve substantially as hereinbefore described with reference to figures 1, 2 and 4 ofthe accompanying drawings.
Claim 19
Dependent Claim
19 words
A bioprosthetic heart valve substantially as hereinbefore described with reference to figures 1, 2 and 4 ofthe accompanying drawings.
Claim 20
Independent Claim
23 words
A method of manufacturing a bioprosthetic heartvalve substantially as hereinbefore described with reference to figures 1,2 and 4 of the accompany- ing drawings.
Claim 21
Independent Claim
23 words
A method of manufacturing a bioprosthetic heartvalve substantially as hereinbefore described with reference to figures 1,2 and 4 of the accompany- ing drawings.
References Cited (Backward Citations)
GB2056023A
Cited
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