Implant delivery device adapted to be attached to or interconnected with a catheter, catheter and method

1. An assembly having an inner space extending along a longitudinal direction thereof, the assembly comprising:

a device including a lumen;

an implant attached to the device, wherein the implant comprises a heart valve;

a first folding means connected to the implant and adapted for folding or unfolding the implant, the first holding means having an end;

a second folding means having an end that is coupled to the end of the first folding means; and

a catheter detachably attached to or interconnected with the device via a snap-on connection, the catheter including a lumen,

wherein the inner space includes a first section and a second section next to the first section along the longitudinal direction of the assembly, the first section being defined by the lumen of the device and the second section being defined by the lumen of the catheter, and

wherein the first folding means extends at least partially in the first section of the inner space, and the second folding means extends at least partially in the second section of the inner space.

2. The assembly of claim 1 , further including an actuating device coupled to the second folding means, wherein the second folding means contributes to folding or unfolding of the implant by the first folding means by transmission of a force on the actuating device.

3. The assembly of claim 1 , wherein hooks or loops are provided at the ends of the first folding means and/or the second folding means to removably couple the first folding means to the second folding means.

4. The assembly of claim 1 , wherein the ends of the first folding means and second folding means are coupled by a knotted or interloping connection.

5. The assembly of claim 1 , wherein the first folding means comprises a string, a thread or a rein.

6. The assembly of claim 5 , wherein the second folding means comprises a string, a thread or a rein.

7. The assembly of claim 1 , wherein the first section and the second section intercommunicate with each other.

8. The assembly of claim 1 , further including means for interconnecting the catheter with the device, and wherein the interconnecting means comprise a recess formed on the device, and a blunt end of the catheter is detachably received in the recess of the device.

9. The assembly of claim 8 , wherein the first section and the second section of the inner space are respectively located at two opposite sides of the interconnecting means.

10. The assembly of claim 1 , wherein the heart valve includes living tissues.

11. The assembly of claim 10 , wherein the living tissues include a pig heart valve.

12. The assembly of claim 1 , wherein the first section of the inner space has a first diameter and the second section of the inner space has a second diameter, and the first diameter is relatively smaller than the second diameter.

13. The assembly of claim 1 , wherein the device and the catheter are interconnected head-to-head, with the lumen of the device and the lumen of the catheter intercommunicating.

14. The assembly of claim 1 , wherein each of the catheter and the device has a proximal end and a distal end opposite to the proximal end, wherein the proximal end of the device is interconnected with or attached to the distal end of the catheter, and the inner space is open at the distal end of the device.

15. The assembly of claim 1 , wherein the inner space has at least one opening at a lateral sidewall of the device.

16. An assembly having an inner space extending along a longitudinal direction thereof, the assembly comprising:

a device including a lumen;

an implant attached to the device, wherein the implant comprises a heart valve;

a first folding means connected to the implant and adapted for folding or unfolding the implant;

a second folding means coupled to the first folding means; and

a catheter detachably attached to or interconnected with the device via a snap-on connection, the catheter including a lumen,

wherein the inner space includes a first section and a second section next to the first section along the longitudinal direction of the assembly, the first section being defined by the lumen of the device and the second section being defined by the lumen of the catheter,

wherein the first folding means extends at least partially in the first section of the inner space, and the second folding means extends at least partially in the second section of the inner space; and

further including an actuating device coupled to the second folding means, wherein the second folding means contributes to folding or unfolding of the implant by the first folding means by transmission of a force on the actuating device.