Delivery of implants and contrast agents using a retention device.

Abstract

The method includes delivering a medical implant and a delivery device to a tissue wall within a patient's heart. The delivery device may be attached to the medical implant. The method further includes manipulating the delivery device to position at least a portion of the medical implant in a desired location relative to the tissue wall and delivering an expandable retention device adjacent to the medical implant. The expandable retention device is configured to at least partially obstruct blood flow. The method further includes injecting a contrast agent between at least a portion of the medical implant and at least a portion of the expandable retention device, collapsing the expandable retention device, and detaching the delivery device from the medical implant.

Claims

1. A delivery system, An internal catheter (54) configured to deliver a cardiac shunt (150) and retention devices (1500, 1900) to the coronary sinus (19) of the heart, and in close proximity to the tissue wall (30) of the heart, A delivery device (162) is configured to be attached to and detached from the cardiac shunt (150) and to operate at least a portion of the cardiac shunt (150) to a desired position relative to the tissue wall of the heart, An outer sheath (50) configured to at least partially enclose and house the stagnation devices (1500, 1700, 1900) and the cardiac shunt (150), and to allow the cardiac shunt (150) and the stagnation devices (1500, 1900) to be removed from the outer sheath (50), wherein when the stagnation devices (1500, 1900) are removed from the outer sheath (50), the stagnation devices expand, and Equipped with, A delivery system comprising a stagnation device (1500, 1900) configured to expand to at least partially obstruct blood flow within the coronary sinus (19), and to compress from an expanded state.

2. The delivery system according to claim 1, wherein the stabling device (1900) comprises a network of wires (1402a, 1402b; 1702a; 1706).

3. The delivery system according to claim 2, wherein the network of wires (1402a, 1402b; 1702a; 1706) has at least a partial conical shape.

4. The delivery system according to claim 2 or 3, wherein the network of wires (1402a, 1402b) includes an elliptical wire (1402a) that forms an elliptical opening in the stagnant device and one or more curved wires (1402b) that extend substantially perpendicular to the elliptical wire (1402a).

5. The delivery system according to claim 4, wherein each of the curved wires (1402b) is attached to the elliptical wire (1402a) at the end of the curved wire (1402b).

6. The delivery system according to claim 4, wherein the elliptical wire (1402a) is configured to expand to a diameter larger than the outer sheath (50) in response to removal from the outer sheath (50), and one or more curved wires (1402b) are configured to extend outward from the inner catheter (54).

7. The delivery system according to claim 2, wherein the retention device (1900) is configured to surround at least a portion of the internal catheter (54).

8. The delivery system according to claim 2, wherein the stabling device (1900) comprises a cover (1405) extending between the wires.

9. The delivery system according to claim 8, wherein the cover (1405) is fluid-sealed.

10. The delivery system according to claim 8, wherein the cover (1405) is porous.

11. The delivery system according to claim 1, wherein the stabling device includes an inflatable balloon (1500).

12. The delivery system according to claim 11, wherein the inflatable balloon (1500) extends from the outer surface of the inner catheter (54).

13. The delivery system according to claim 11 or 12, wherein the inflatable balloon (1500) is ring-shaped.

14. The delivery system according to claim 11, wherein the diameter of the inflatable balloon (1500) is greater than the width of the stabling device.

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