Device for performing tricuspid regurgitation operation
View Patent ↗A device for performing tricuspid regurgitation operation is proposed. The device for performing tricuspid regurgitation operation is easily inserted through the inferior vena cava, the tricuspid valve, and the pulmonary artery in sequence in order to treat tricuspid regurgitation (TR) which is a disease where blood from the right ventricle flows back into the right atrium through an empty space (i.e., orifice) formed by incomplete closing of the tricuspid valve (TV) which is positioned between the right atrium and the right ventricle of the heart. The device includes: a fixing member for pulmonary artery installed in the pulmonary artery; a fixing member for inferior vena cava installed in the inferior vena cava; a connecting tube connecting the fixing member for the pulmonary artery and the fixing member for the inferior vena cava to each other; and a blocking part passing obliquely through the tricuspid valve.
1. A catheter device comprising:
a connecting tube having a proximal segment, a distal segment, and a middle segment between the proximal and distal segments;
a blocking part mounted on the middle segment of the connecting tube;
a distal fixing member for anchoring within a pulmonary artery, wherein the distal fixing member is at a distal end of the distal segment of the connecting tube, wherein optionally, the distal fixing member comprises a pre-determined natural bend;
a proximal fixing member for anchoring within an inferior vena cava, wherein the proximal fixing member is at a proximal end of the proximal segment of the connecting tube;
wherein the distal segment of the connecting tube comprises only a single pre-determined natural bend, wherein the single pre-determined natural bend of the distal segment is not the predetermined natural bend of the distal fixing member.
2. The device of claim 1 , wherein the connecting tube comprises a lumen for a guidewire.
3. The device of claim 1 , wherein the distal fixing member comprises:
a first fixing member body; and
a plurality of first fixtures for the pulmonary artery radially coupled to the first fixing member body, and
wherein the proximal fixing member comprises:
a second fixing member body; and
a plurality of second fixtures for the inferior vena cava radially coupled to the second fixing member body.
4. The device of claim 3 , wherein the first fixing member body or the second fixing member body is configured in a cylindrical shape having a hole in a central axis thereof and coupled to the connecting tube.
5. The device of claim 4 , wherein the second fixing member body comprises a protruding hook for the inferior vena cava, the protruding hook being coupled to a lower surface of the second fixing member body.
6. The device of claim 3 , wherein the first fixing member body or the second fixing member body is configured in a ring shape, and the distal fixing member or the proximal fixing member comprises a fixing-member-connecting wire having one end thereof coupled to the first fixing member body and inserted into the connecting tube, and having another end thereof coupled to the second fixing member body.
7. The device of claim 1 , wherein the distal fixing member comprises:
a first fixture for the pulmonary artery formed of a wire having a ribbon shape; and
a first fixing member body coupled to one end of the first fixture, and
wherein the proximal fixing member comprises:
a second fixture formed of the wire having the ribbon shape; and
a second fixing member body coupled to one end of the second fixture.
8. The device of claim 7 , wherein the first fixing member body or the second fixing member body is configured in a cylindrical shape having a hole in a central axis thereof and coupled to the connecting tube.
9. The device of claim 7 , wherein the first fixing member body or the second fixing member body is configured in a ring shape, and the distal fixing member or the proximal fixing member comprises a fixing-member-connecting wire having one end thereof coupled to the distal fixing member and inserted into the connecting tube, and having another end thereof coupled to the proximal fixing member.
10. The device of claim 1 , wherein the blocking part comprises:
a supporting wire having both ends thereof coupled to the connecting tube; and
a blocking membrane having one side thereof fixed to the connecting tube and supported by the supporting wire.
11. The device of claim 1 , wherein the blocking part is a blocking balloon in a balloon shape capable of expanding or contracting, and the blocking part further comprises:
a balloon tube having a first end thereof connected to and communicated with the blocking balloon; and
a balloon-adjusting hub connected to a second end of the balloon for expanding or contracting the blocking balloon.
12. The device of claim 1 , wherein the blocking part comprises:
a ring-shaped wire installed to make the connecting tube to be passed through thereof and having a central axis thereof obliquely formed with respect to the connecting tube; and
a blocking membrane connecting the connecting tube and the ring-shaped wire to each other.
13. The device of claim 1 , further comprising a sheath tube, wherein the connecting tube, blocking part, distal fixing member, and proximal fixing member are contained inside the sheath tube.