The present invention provides a vascular conduit device including a deformable flange and complementary securing ring in cooperation for securing the device within an aperture defined in a tissue wall. The present invention further provides a system for implanting such a vascular conduit device in
The present invention provides a vascular conduit device including a deformable flange and complementary securing ring in cooperation for securing the device within an aperture defined in a tissue wall. The present invention further provides a system for implanting such a vascular conduit device in a tissue wall. More specifically, the present invention provides a system including a coring device for defining an aperture in a tissue wall (such as a ventricle and/or a blood vessel) and securely implanting a vascular conduit device therein so as to provide fluid communication between a first and second surface of the tissue wall via the vascular conduit device.
대표청구항▼
1. A system for implanting a vascular conduit device, the system comprising: a coring device for defining an aperture in a tissue wall having a first tissue surface and a second tissue surface, the coring device defining a lumen adapted to receive a guide for directing the coring device to the secon
1. A system for implanting a vascular conduit device, the system comprising: a coring device for defining an aperture in a tissue wall having a first tissue surface and a second tissue surface, the coring device defining a lumen adapted to receive a guide for directing the coring device to the second tissue surface;an articulating device for selectively deploying through the tissue wall and proximate the first tissue surface, the articulating device adapted to provide counter-traction for advancing the coring device into the tissue wall and to selectively occlude the aperture;a sutureless conduit device for lining the aperture and maintaining fluid communication between the first and second tissue surfaces of the tissue wall, the sutureless conduit device adapted to be separably positioned over and coaxial with the coring device and to be advanced over the coring device and into the aperture, the sutureless conduit device comprising a tube having proximal and distal ends, and inside and outside surfaces, the inside surface of the tube adapted to slidably contact an outer surface of the coring device when the sutureless conduit device is positioned over the coring device; anda delivery device for selectively deploying the sutureless conduit device into the aperture, the delivery device comprising a plurality of retractor arms adapted to engage the tissue wall and to provide counter-traction for advancing the sutureless conduit device into the aperture. 2. The system according to claim 1, wherein the coring device is selected from the group consisting of: a pulsed laser scalpel;a continuous wave laser scalpel;a mechanical coring device;an ultrasonic coring device; andcombinations thereof. 3. The system according to claim 1, wherein the articulating device comprises an umbrella occlusion device. 4. The system according to claim 1, wherein the sutureless conduit device is further adapted to implant a ventricular assist device in the tissue wall. 5. The system according to claim 1, wherein the sutureless conduit device further comprises at least one flexible flange disposed at or near the distal end of the tube, the flexible flange having a larger outer diameter than the tube and adapted to operably engage the first tissue surface. 6. The system according to claim 5, wherein the flexible flange has a frusto-conical shape. 7. The system according to claim 5, wherein the flexible flange is adapted to deform sufficiently to allow the distal end of the tube and the flange to be inserted through the aperture defined in the tissue wall, the aperture having a diameter equal to or less than the diameter of the tube. 8. The system according to claim 7, wherein the flexible flange has sufficient shape memory that once deformed to allow insertion of the distal end of the tube and the flange through the aperture, the flange will return to a larger original shape. 9. The system according to claim 5, wherein the flexible flange extends about an entire circumference of the tube. 10. The system according to claim 1, wherein the sutureless conduit device is further adapted for the passage of medical or surgical instruments during an intervention through the tissue wall. 11. The system according to claim 1, further comprising a guiding wire or a guiding catheter for directing the coring device and the sutureless conduit device to the tissue wall via an endovascular pathway. 12. The system according to claim 1, wherein a proximal end of the sutureless conduit device is operably engaged with the coring device. 13. The system according to claim 1, wherein the delivery device further comprises a plunger adapted to be slidably disposed with respect to the coring device and to advance the sutureless conduit device over the coring device and into the aperture, and wherein the retractor arms are adapted to engage the tissue wall while the plunger advances the conduit device over the coring device and into the aperture. 14. The system according to claim 13, wherein the retractor arms are adapted to dilate the aperture while the plunger advances the conduit device over the coring device and into the aperture. 15. The system according to claim 1, further comprising a valve adapted to control fluid flow through the sutureless conduit device. 16. The system according to claim 15, wherein the valve is adapted for the passage of medical or surgical instruments. 17. The system according to claim 1, wherein the articulating device is adapted to be advanced over the guide and within the lumen of the coring device. 18. The system according to claim 1, wherein the articulating device is adapted to be advanced over the guide and within the lumen of the sutureless conduit device. 19. The system according to claim 1, wherein the retractor arms are adapted to dilate the aperture. 20. The system according to claim 1, wherein the retractor arms are flexible. 21. The system according to claim 1, wherein the retractor arms are adapted to move from a closed position to an open position as the sutureless conduit device is advanced over the coring device and into the aperture. 22. The system according to claim 1, wherein the sutureless conduit device is adapted to move the retractor arms from a closed position to an open position as the sutureless conduit device is advanced over the coring device and into the aperture. 23. The system according to claim 1, wherein the retractor arms extend over the sutureless conduit device. 24. A system for implanting a vascular conduit device, the system comprising: a coring device for defining an aperture in or near a ventricular apex of a heart tissue wall having an inner first tissue surface and an outer second tissue surface, the coring device defining a lumen adapted to receive a guide for directing the coring device to the second tissue surface, the coring device adapted to remove and capture a core of tissue from the heart tissue wall to define the aperture;an articulating device for selectively deploying through the heart tissue wall and proximate the first tissue surface, the articulating device adapted to provide a hemostatic surface about the first tissue surface when the articulating device is in an expanded configuration, to provide counter-traction for advancing the coring device into the heart tissue wall and to selectively occlude the aperture;a sutureless conduit device for lining the aperture and maintaining fluid communication between the first and second tissue surfaces of the heart tissue wall, the sutureless conduit device adapted to be separably positioned over and coaxial with the coring device and to be advanced over the coring device and into the aperture, the sutureless conduit device comprising: a tube having proximal and distal ends, and inside and outside surfaces, the inside surface of the tube adapted to slidably contact an outer surface of the coring device when the sutureless conduit device is positioned over the coring device;a flexible flange disposed at or near the distal end of the tube, the flexible flange having a frusto-conical shape expanding from a distal end to a proximal end thereof, the flexible flange adapted to deform sufficiently to be inserted through the aperture and to operably engage the first tissue surface; anda securing ring adapted to selectively engage the outer surface of the tube and to advance over the tube to operably engage the second tissue surface so as to secure the sutureless conduit device in the aperture; anda delivery device for selectively deploying the sutureless conduit device into the aperture, the delivery device comprising: a plurality of retractor arms adapted to engage the tissue wall and to provide counter-traction for advancing the sutureless conduit device into the aperture; anda plunger adapted to advance the sutureless conduit device over the coring device and into the aperture. 25. The system according to claim 24, wherein the sutureless conduit device is further adapted to implant a ventricular assist device in the tissue wall. 26. The system according to claim 24, wherein the retractor arms are adapted to engage the tissue wall while the plunger advances the sutureless conduit device over the coring device and into the aperture. 27. The system according to claim 24, wherein the articulating device comprises an umbrella occlusion device. 28. The system according to claim 24, further comprising a valve adapted to control fluid flow through the sutureless conduit device. 29. The system according to claim 28, wherein the valve is adapted for the passage of medical or surgical instruments. 30. A system for implanting a vascular conduit device, the system comprising: a coring device for defining an aperture in a tissue wall having a first tissue surface and a second tissue surface, the coring device defining a lumen adapted to receive a guide for directing the coring device to the second tissue surface, the coring device adapted to remove and capture a core of tissue from the tissue wall to define the aperture;a sutureless conduit device for lining the aperture and maintaining fluid communication between the first and second tissue surfaces of the tissue wall, the sutureless conduit device adapted to be separably positioned over and coaxial with the coring device and to be advanced over the coring device and into the aperture, the sutureless conduit device comprising a tube having proximal and distal ends, and inside and outside surfaces, the inside surface of the tube adapted to slidably contact an outer surface of the coring device when the sutureless conduit device is positioned over the coring device; anda delivery device for selectively deploying the sutureless conduit device into the aperture , the delivery device comprising: a plurality of retractor arms adapted to engage the tissue wall and to provide counter-traction for advancing the sutureless conduit device into the aperture; anda plunger adapted to advance the sutureless conduit device over the coring device and into the aperture. 31. A system for implanting a vascular conduit device, the system comprising: a coring device for defining an aperture in or near a ventricular apex of a heart tissue wall having a first tissue surface and a second tissue surface, the coring device adapted to be advanced over a guidewire and to remove a core of tissue from the heart tissue wall to define the aperture;a sutureless conduit device for lining the aperture and maintaining fluid communication between the first and second tissue surfaces of the heart tissue wall, the sutureless conduit device adapted to be advanced over the coring device and into the aperture;a valve adapted to control blood flow through the sutureless conduit device; anda delivery device for selectively deploying the sutureless conduit device into the aperture, the delivery device comprising a plurality of retractor arms adapted to engage the tissue wall and to provide counter-traction for advancing the sutureless conduit device into the aperture.
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