TRANSCATHETER DEVICE FOR TREATING TRICUSPID VALVE REGURGITATION
A transcatheter device for treating the tricuspid valve regurgitation. The transcatheter device comprises a main shaft, a proximal portion, a distal tail, and a spacer body mounted on the main shaft and located between the proximal portion and the distal tail. This transcatheter device could be used for treating tricuspid valve regurgitation in a patient's heart. All or part of the transcatheter device is supported by the main shaft. The spacer body is mounted on the shaft, which travels through the spacer body. Also disclosed are a coaptation assembly that comprises the transcatheter device, and a method of treating tricuspid valve regurgitation using the transcatheter device.
1 . A transcatheter device comprising:
a main shaft;
a proximal portion comprising a proximal segment of the main shaft and an intravascular anchor, wherein the proximal segment has a single bend;
a distal tail comprising a distal portion of the main shaft, wherein the distal tail has a C-shape configured to embrace a path along the pulmonary artery—the supraventricular crest of RV—the tricuspid valve—the right atrium and then toward IVC; and
a spacer body mounted on the main shaft and located between the proximal segment of the main shaft and the distal tail.
2 . The transcatheter device of claim 1 , wherein the spacer body has a non-linear shape.
3 . The transcatheter device of claim 1 , wherein the distal tail comprises a bend.
4 . The transcatheter device of claim 1 , wherein the distal tail comprises a proximal segment and a distal segment, wherein the distal segment has a thinner diameter than the proximal segment.
5 . The transcatheter device of claim 1 , wherein the spacer body has a length in the range of range of 4-13 cm.
6 . The transcatheter device of claim 1 , wherein the intravascular anchor is a spiral coil.
7 . The transcatheter device of claim 6 , wherein the intravascular anchor has at least two spirals.
8 . A coaptation assembly comprising:
a transcatheter device of claim 1 , wherein the main shaft comprises a lumen;
a guidewire traveling through the lumen of the main shaft;
a moveable delivery sheath that covers the spacer body and intravascular anchor;
a deployment catheter for intravascular deployment of the transcatheter device.
9 . The transcatheter device assembly of claim 8 , further comprising an entry opening on the main shaft at a location between the intravascular anchor and the spacer body and an exit opening on the main shaft at a tip of the distal tail;
wherein the lumen of the main shaft extends from the entry opening to the exit opening; wherein the guidewire travels through the lumen from the entry opening to the exit opening.