Device and method for establishing an artificial arterio-venous fistula
A shunt rivet for implantation in the aorta and inferior vena cava to treat chronic obstructive pulmonary disease, and a method of treating chronic obstructive pulmonary disease. The shunt rivet may be formed to have a central section, a proximal clinch section, and a distal clinch section each having one or more clinch members. These one or more clinch members may be trained to be resiliently biased to bend radially outwardly from the central section.
1. A connector device, comprising:
a connector body having a first diameter;
a proximal first member and a distal first member, each being configured to be deployed on opposite ends of the connector body within a first vessel and a second vessel;
a proximal second member and a distal second member, each being configured to be deployed, respectively, opposite the proximal first member and the proximal second member;
wherein the proximal and distal first members and the proximal and distal second members are each configured to be resiliently biased to bend radially outwardly from the connector body and to also produce a grip strength from 3-45 gram-force upon an intervening blood vessel.
2. The device of claim 1 wherein the proximal first member and the distal first member are sized to arc entirely within each respective vessel into a deployed position when the proximal second member and the distal second member contact each respective vessel wall.
3. The device of claim 1 wherein the proximal first member and the proximal second member are configured to arc greater than 270 degrees.
4. The device of claim 1 wherein the distal first member and the distal second member are configured to form a blind head allowance of 10-16 mm.
5. The device of claim 1 wherein the proximal first member and the proximal second member are configured to form a head diameter of 5-16 mm.
6. The device of claim 1 wherein the connector body is a pseudoelastic material, wherein the pseudoelastic material is configured to be pseudoelastic at body temperature.
7. The device of claim 1 wherein the distal first and second members and the proximal first and second members have a deployed configuration longitudinally disposed relative to contiguous portions of the first and second vessels such that the distal first and second members and the proximal first and second members are biased to close upon the contiguous portions.
8. The device of claim 1 wherein the connector body is a resilient material.
9. A method of treating a patient, comprising:
percutaneously positioning a connector body within a first vessel, the connector body having a first diameter, a proximal first member and a distal first member, each being configured to be deployed on opposite ends of the connector body within the first vessel and a second vessel, a proximal second member and a distal second member, each being configured to be deployed, respectively, opposite the proximal first member and the proximal second member; and
releasing each of the proximal first and second members and distal first and second members such that the proximal first and second members impinge upon an internal wall of the first vessel and the second vessel with a grip strength from 3-45 gram-forced.
10. The method of claim 9 wherein releasing comprises releasing the proximal first member and the distal first member such that they arc entirely within each respective vessel into a deployed position.
11. The method of claim 9 wherein the distal first member and the distal second member are configured to form a blind head allowance of 10-16 mm.
12. The method of claim 9 wherein the proximal first member and the proximal second member are configured to form a head diameter of 5-16 mm.
13. The method of claim 9 wherein releasing comprises deploying the distal first and second members and the proximal first and second members longitudinally relative to contiguous portions of the first and second vessels.
14. The method of claim 9 further comprising adjusting a diameter of the connector body to alter a flow between the first vessel and second vessel.
15. The method of claim 14 wherein adjusting a diameter comprises increasing or decreasing the diameter of the connector body.