Devices, systems, and methods for implanting and using a connector in a tissue wall
Embodiments of the present invention provide devices, systems, and methods for implanting and using a connector in a tissue wall to establish, maintain, control, and close a fluid communication between opposing surfaces of the tissue wall. The connector may include an anchoring device, a port, and a coupler device. The anchoring device may be configured for advancing at least partially through the tissue wall. The port may be positioned about a proximal end of the anchoring device, and the port may define an aperture therethrough. The coupler device may be positioned about a proximal end of the port, and the coupler device may be configured for coupling to a medical device.
1. A connector for implanting in a tissue wall, the connector comprising:
an anchoring device configured for advancing at least partially through the tissue wall, wherein the anchoring device comprises a sharpened tip configured for piercing the tissue wall;
a port attached to the anchoring device and positioned about a proximal end of the anchoring device, wherein the port defines an aperture therethrough;
a cannula configured for positioning at least partially through the aperture of the port and engaging the port, wherein the cannula defines an aperture therethrough;
a hemostasis valve positioned within the aperture of the cannula and configured for closing a fluid communication therethrough, wherein the hemostasis valve is positioned at least partially within the aperture of the port when the cannula and the port are engaged;
a coupler device positioned about the port, wherein the coupler device is configured for coupling to a medical device; and
wherein the coupler device comprises a deflection arm configured for deflecting inward into an aperture of the coupler device and retaining the medical device.
2. The connector of claim 1 , wherein the anchoring device is a suture-less device configured for advancing at least partially through the tissue wall.
3. The connector of claim 1 , wherein the anchoring device comprises a helical coil or spring.
4. The connector of claim 3 , wherein the helical coil or spring comprises a radially-expanding helical coil or spring such that a helical diameter of the coil or spring increases from a proximal end of the anchoring device toward a distal end of the anchoring device.
5. The connector of claim 1 , wherein the anchoring device is configured for compressing at least a portion of the tissue wall inward toward an axis of the anchoring device when advanced at least partially therethrough.
6. The connector of claim 1 , wherein the port comprises a flange formed about a distal end of the port, and wherein the flange is configured for contacting the tissue wall upon advancing the anchoring device at least partially therethrough.
7. The connector of claim 1 , wherein the coupler device is a suture-less device configured for coupling to the medical device.
8. The connector of claim 1 , wherein the coupler device is configured for receiving and axially retaining the medical device.
9. The connector of claim 1 , wherein the medical device is an inlet tube of a ventricular assist device, and wherein the coupler device is configured for receiving and axially retaining the inlet tube.
10. The connector of claim 1 , further comprising a secondary sealing element configured for contacting and sealing against the tissue wall upon advancing the anchoring device at least partially therethrough.
11. The connector of claim 10 , wherein the secondary sealing element is formed as a substantially ring-shaped member positioned about a distal end of the port.
12. The connector of claim 1 , wherein the hemostasis valve comprises a one-way valve.
13. The connector of claim 1 , wherein the hemostasis valve comprises a one-way multi-leaflet valve.
14. The connector of claim 1 , wherein the hemostasis valve is configured for allowing at least a portion of the medical device to pass therethrough.
15. The connector of claim 14 , wherein the hemostasis valve is configured for forming a fluid-tight seal about an outer surface of the medical device.
16. The connector of claim 1 , wherein the cannula is configured for positioning at least partially through the tissue wall.
17. The connector of claim 1 , wherein the cannula comprises threads configured for engaging mating threads of the port.
18. The connector of claim 1 , wherein the anchoring device comprises a plurality of pins, prongs, barbs, or hooks.
19. The connector of claim 1 , wherein the cannula comprises an opening, and wherein the deflection arm is configured for passing through the opening of the cannula and engaging the hemostasis valve for retaining the medical device.