Systems and methods for delivering fastener to opposed tissue structures
First Claim
1. Apparatus for delivering a fastener into tissue, said apparatus comprising:
- a delivery shaft;
a fastener slidably receivable over the exterior of the shaft, wherein the fastener has a resilient structure which conforms to the shape of the shaft when received over the shaft and assumes a tissue anchoring configuration when released from over the shaft; and
a sharpened distal tip extending from the shaft or the fastener to permit self-penetration of the assembly of the shaft and fastener through tissue.
3 Assignments
0 Petitions
Accused Products
Abstract
Flexible clips which are transported over a solid needle or through a hollow needle and methods of use thereof are described for tissue approximation and attachment and for joining a graft vessel to a target vessel. The tissue approximation or anastomosis clip includes a highly flexible or elastic material wrapped around and transported on the outside of a solid needle. Another embodiment is a flexible or composite clip which is transported within a hollow needle. The distal end of the clips has a tapered configuration to minimize resistance and facilitate tissue penetration. After placement of the clip in the desired location, the solid or hollow needle is withdrawn resulting in coiling or contraction of the clip thus approximating the tissue and securing the clip. Multiple clips can be loaded in the deployment device which is calibrated to deploy and secure one clip at a time. An additional embodiment is a needle point attached to a clip that overrides a solid shaft. Deployment is by pushing or displacing the clip portion from the shaft. A plurality of these needle-clips may be oriented on a circular ring which permits rapid clip deployment and tissue approximation, such as for anastomosis, and methods for subsequent ring removal or dismantling.
123 Citations
30 Claims
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1. Apparatus for delivering a fastener into tissue, said apparatus comprising:
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a delivery shaft;
a fastener slidably receivable over the exterior of the shaft, wherein the fastener has a resilient structure which conforms to the shape of the shaft when received over the shaft and assumes a tissue anchoring configuration when released from over the shaft; and
a sharpened distal tip extending from the shaft or the fastener to permit self-penetration of the assembly of the shaft and fastener through tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A self closing tissue fastener comprising:
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an elastic body having a central passage for receiving a delivery rod; and
a tissue penetrating tip at a distal end of the elastic body, wherein the body is constrained to a delivery configuration when received over the delivery rod and deforms to assume an anchoring configuration when removed from the delivery rod. - View Dependent Claims (16, 17, 18)
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19. A method for fastening tissue segments, said method comprising:
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advancing a fastener through said segments while the fastener is deformed over a shaft in a delivery configuration; and
releasing the fastener from the shaft so that the fastener assumes an anchoring configuration to fasten the tissue segments together.
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20. Apparatus for delivering a fastener into tissue, said apparatus comprising:
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a hollow needle;
a fastener that slides within the lumen of the needle, wherein the fastener has a resilient structure which conforms to the shape of the lumen and assumes a tissue anchoring configuration when released from within the hollow needle; and
a sharpened distal tip extending from the needle or the fastener to permit self-penetration of the assembly of the needle and fastener through tissue. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification