Process and apparatus for the production of a heart valve prosthesis
First Claim
1. Apparatus for covering an annular support of a heart valve prosthesis with an elastic textile covering, said apparatus comprising:
- two coaxial rings having a central opening for holding the annular support together with the covering, a first one of said two coaxial rings having a fastening means for engagement with one end of the textile covering; and
a second one of said two coaxial rings having a clamping device for engagement with the other end of the textile covering;
a stand attached to the first and second rings for holding the first and second rings in a predetermined position, said stand including guide columns slidably attached to said first and second rings for permitting said first and second rings to be moved along said guide columns while maintaining a relative position between said first and second rings.
1 Assignment
0 Petitions
Accused Products
Abstract
An elastic textile covering is applied over an annular support of a heart valve prosthesis by inserting the preferably collar shaped textile covering through the annular support, turning two projecting axial ends of the textile covering over the outer surface of the annular support and then joining the two axial ends to each other to form a seam that preferably extends entirely around an outer periphery of the annular support. This seam can be concealed by a collar, which also may be covered by the textile covering. An apparatus for applying the textile covering to the annular support includes two coaxial annular rings into which the annular support and textile covering are inserted. Each of the rings includes structure for attachment to a respective axial end of the textile covering.
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Citations
9 Claims
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1. Apparatus for covering an annular support of a heart valve prosthesis with an elastic textile covering, said apparatus comprising:
- two coaxial rings having a central opening for holding the annular support together with the covering, a first one of said two coaxial rings having a fastening means for engagement with one end of the textile covering; and
a second one of said two coaxial rings having a clamping device for engagement with the other end of the textile covering;
a stand attached to the first and second rings for holding the first and second rings in a predetermined position, said stand including guide columns slidably attached to said first and second rings for permitting said first and second rings to be moved along said guide columns while maintaining a relative position between said first and second rings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- two coaxial rings having a central opening for holding the annular support together with the covering, a first one of said two coaxial rings having a fastening means for engagement with one end of the textile covering; and
Specification