Biodegradable Scaffold
First Claim
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1. A biodegradable scaffold for a prosthetic implant, the scaffold comprising:
- first and second tubular scaffold components co-axially arranged one inside the other and secured one to the other, each said tubular scaffold component being fabricated from a sheet of biodegradable material having two generally parallel peripheral edges that are overlapped and secured one to the other to form a tube comprising a first and second tube.
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Abstract
The present invention relates to a biodegradable scaffold for a prosthetic implant, such as a prosthetic vessel and/or a prosthetic heart valve. The implantable prosthetic further comprises a biological tissue-like matrix. The present invention further provides methods of assembling or manufacturing a biodegradeable prosthetic implant using pre-formed jig components.
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Citations
27 Claims
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1. A biodegradable scaffold for a prosthetic implant, the scaffold comprising:
- first and second tubular scaffold components co-axially arranged one inside the other and secured one to the other, each said tubular scaffold component being fabricated from a sheet of biodegradable material having two generally parallel peripheral edges that are overlapped and secured one to the other to form a tube comprising a first and second tube.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 26)
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19. A biodegradable scaffold for a heart valve prosthesis, the scaffold comprising coaxially arranged inner, middle and outer tubular scaffold components each of which is fabricated from a sheet of biodegradable material having two generally parallel peripheral edges that are overlapped and secured one to the other to form a tube comprising the inner, middle and outer tubular scaffold components;
- wherein said inner scaffold component comprises a plurality of peaks at each of which the scaffold component has a larger longitudinal dimension in an axial direction, said peaks being separated from one another by trough regions wherein the scaffold component has a smaller longitudinal dimension in said axial direction, and a distal end of said middle scaffold component is shaped about said inner scaffold component to provide a plurality of valve leaflets each of which is generally coincident with respective ones of said troughs.
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20. A method of assembling a biodegradable scaffold, the method comprising wrapping a first sheet of biodegradable material round a jig component, securing overlapped parallel ends of said first sheet together to form a first tubular scaffold component, wrapping a second sheet of biodegradable material round said first tubular scaffold component, and securing overlapped parallel ends of said second sheet together to form a second tubular scaffold component coaxially arranged with said first tubular component.
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21. A method of assembling a biodegradable scaffold, the method comprising:
- wrapping a first sheet of biodegradable material round a jig component, said jig component having a crown-like shape consisting of a plurality of peaks at each of which the jig component has a larger longitudinal dimension in an axial direction, said peaks being separated from one another by trough regions wherein the jig component has a smaller longitudinal dimension in said axial direction, securing overlapped parallel ends of said first sheet together to form a first tubular scaffold component, conforming said first sheet of material to the crown-like shape of said jig component;
wrapping a second sheet of biodegradable material round said first tubular scaffold component, and securing overlapped parallel ends of said second sheet together to form a second tubular scaffold component coaxially arranged with said first tubular component. - View Dependent Claims (22, 23, 24, 25)
- wrapping a first sheet of biodegradable material round a jig component, said jig component having a crown-like shape consisting of a plurality of peaks at each of which the jig component has a larger longitudinal dimension in an axial direction, said peaks being separated from one another by trough regions wherein the jig component has a smaller longitudinal dimension in said axial direction, securing overlapped parallel ends of said first sheet together to form a first tubular scaffold component, conforming said first sheet of material to the crown-like shape of said jig component;
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27-29. -29. (canceled)
Specification