Method and apparatus for connecting and closing severed blood vessels
First Claim
1. A closure for blood vessel openings comprised of a ring having opposite faces each face having an outer surface, the ring being sized and adapted to conform to splayed ends of a blood vessel, each face having a plurality of barbs attached to the outer surface of each face, the barbs sized and configured to pierce and anchor in a blood vessel wall.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for closing or connecting blood vessels has a plurality of micro miniature barb which pierce the wall of the blood vessel and anchor the device in place. In one embodiment the fastener is comprised of a male member and a female member which are fastened to blood vessel segments with the micro miniature barbs. The male and female members are joined together by inserting the male member into the female member to form a permanent coupling. The device can also be used for opening a blood vessel which has been narrowed by disease or trauma.
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Citations
10 Claims
- 1. A closure for blood vessel openings comprised of a ring having opposite faces each face having an outer surface, the ring being sized and adapted to conform to splayed ends of a blood vessel, each face having a plurality of barbs attached to the outer surface of each face, the barbs sized and configured to pierce and anchor in a blood vessel wall.
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4. A method of a closing and connecting blood vessel segments comprised of the steps of:
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a. rolling a closure around a balloon portion of a balloon catheter, the closure comprised of a sheet having an inner surface and an outer surface, the sheet being adapted to conform to a wall of a blood vessel and a plurality of barbs attached to the outer surface, the barbs sized and configured to pierce and anchor in a blood vessel wall; b. inserting the rolled closure into a blood vessel to a desired position adjacent a blood vessel incision; and c. expanding the balloon portion of the balloon catheter thereby causing the closure to unroll and anchor in an inner wall portion of the blood vessel to make at least one of a closure and a connection of blood vessel segments.
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5. A method of a closing and connecting blood vessel segments comprised of the steps of:
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a. compressing a closure to a diameter smaller than a blood vessel inner diameter, the closure having an inner surface and an outer surface the closure being adapted to conform to a wall of a blood vessel and a plurality of barbs attached to the outer surface, the barbs sized and configured to pierce and anchor in a blood vessel wall; b. inserting the compressed closure into a blood vessel to a desired position adjacent a blood vessel incision; and c. allowing the closure to expand thereby causing the closure to anchor in an inner wall portion of the blood vessel to make at least one of a closure and connection of blood vessel segments. - View Dependent Claims (6, 7, 8)
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9. A method of connecting blood vessel segments comprised of the steps of:
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a. splaying ends of the blood vessel segments; and b. pressing the splayed ends against opposite faces of a ring sized to receive the splayed ends, the faces having a plurality of barbs, the barbs sized and configured to pierce and anchor in a blood vessel wall.
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10. A method of opening a portion of a blood vessel which has been narrowed by disease or trauma comprising the steps of:
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a. compressing a collar to a diameter smaller than a blood vessel inner diameter, the collar having an inner surface and an outer surface the collar being adapted to conform to a wall of a blood vessel and a plurality of barbs attached to the outer surface, the barbs sized and configured to pierce and anchor in a blood vessel wall; b. inserting the compressed collar into a blood vessel to a desired position within a narrowed portion of a blood vessel; and c. allowing the collar to expand thereby causing the collar to anchor in an inner wall portion of the blood vessel to provide lumen through the narrowed portion.
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Specification