CATHETER SYSTEM FOR IMPLANTATION OF PROSTHETIC HEART VALVES
3 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a catheter for the transvascular implantation of prosthetic heart valves, in particular comprising self-expanding anchorage supports (10), which allow a minimally invasive implantation of prosthetic heart valves. The aim of the invention is to reduce the risk to the patient during the implantation. To achieve this, according to the invention a prosthetic heart valve comprising anchorage supports is temporarily housed in a folded form in a cartridge-type unit (4) during the implantation. The cartridge-type unit can be fixed on the proximal end of a guide system (1), which comprises a flexible region (9) that can be guided through the aorta. Actuating elements (2, 3) run through the interior of the hollow guide system, said elements permitting sections of the cartridge-type unit to be displaced radially about their longitudinal axis and/or laterally in a proximal direction, thus allowing individual sections of the anchorage support and the associated prosthetic heart valve to be sequentially released.
13 Citations
36 Claims
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1-16. -16. (canceled)
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17. A catheter system comprising:
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a prosthetic heart valve comprising a heart valve prosthesis attached to a support, wherein the support extends from a first end to a second end, and the second end of the support comprises retaining elements; and a catheter for transvascular delivery of the prosthetic heart valve, the catheter comprising; a guide system comprising a cartridge that includes a tip, an outer sleeve, and an inner sleeve, wherein the outer sleeve and the inner sleeve are configured to retain the prosthetic heart valve in a collapsed state radially therebetween, the inner sleeve including anchoring elements for engaging the retaining elements of the prosthetic heart valve, and wherein the outer sleeve and the inner sleeve are movable relative to each other along a longitudinal axis of the guide system for uncovering the prosthetic heart valve; and a manipulating part coupled to the guide system for controlling movement of the guide system, the manipulating part comprising; a handle; a tube comprising outer threads; a first actuator coupled to the handle, wherein a first movement of the manipulating part, including rotation of the first actuator relative to the handle, causes relative axial movement between the outer sleeve and the inner sleeve to uncover the prosthetic heart valve; and a second actuator coupled to the handle, wherein a second movement of the manipulating part, including movement of the second actuator in a proximal-distal direction of the catheter, causes relative movement between the tip and the outer sleeve. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A catheter system comprising:
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a prosthetic heart valve comprising a heart valve prosthesis attached to a self-expanding support, wherein the support extends from a first end to a second end, and the second end of the support comprises two retaining elements; and a catheter for transvascular delivery of the prosthetic heart valve, the catheter comprising; a guide system comprising a cartridge that includes a tip, an outer sleeve, and an inner sleeve, wherein the outer sleeve and the inner sleeve are configured to retain the prosthetic heart valve in a collapsed state radially therebetween, the inner sleeve including anchoring elements for engaging the retaining elements of the prosthetic heart valve, and wherein the outer sleeve and the inner sleeve are movable relative to each other along a longitudinal axis of the guide system for uncovering the prosthetic heart valve; and a manipulating part coupled to the guide system for controlling movement of the guide system, the manipulating part comprising; a handle; a tube comprising outer threads; a first actuator coupled to the handle, wherein a first movement of the manipulating part, including rotation of the first actuator relative to the handle to engage the threads of the tube, causes relative axial movement between the outer sleeve and the inner sleeve to uncover the prosthetic heart valve in a direction from the first end of the support to the second end of the support; and a second actuator coupled to the handle, wherein a second movement of the manipulating part, including movement of the second actuator in a proximal-distal direction of the catheter, causes relative movement between the tip and the outer sleeve, independent of rotation of the first actuator. - View Dependent Claims (27, 28, 29, 30, 31)
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32. A catheter system comprising:
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a prosthetic heart valve comprising a heart valve prosthesis stitched to a support, wherein the support extends from a first end to a second end, and the second end of the support comprises retaining elements; and a catheter for transvascular delivery of the prosthetic heart valve, the catheter comprising; a guide system comprising a cartridge that includes a tip, an outer sleeve, and an inner sleeve, wherein the outer sleeve and the inner sleeve are configured to retain the prosthetic heart valve in a collapsed state radially therebetween, the inner sleeve including anchoring elements for engaging the retaining elements of the prosthetic heart valve, and wherein the outer sleeve and the inner sleeve are movable relative to each other along a longitudinal axis of the guide system for uncovering the prosthetic heart valve; and a manipulating part coupled to the guide system by a bendable region configured to navigate a bend in an aorta during delivery of the prosthetic heart valve, the manipulating part comprising; a handle; a tube comprising outer threads; a first actuator coupled to the handle, wherein a first movement of the manipulating part, including rotation of the first actuator relative to the handle to engage the threads of the tube, causes relative axial movement between the outer sleeve and the inner sleeve to uncover the prosthetic heart valve in a direction from the first end of the support to the second end of the support; and a second actuator coupled to the handle, wherein a second movement of the manipulating part, including movement of the second actuator in a proximal-distal direction of the catheter, causes relative movement between the tip and the outer sleeve; wherein the manipulating part is configured to retract the prosthetic heart valve within the outer sleeve when the first end of the support is uncovered and the second end is covered by the outer sleeve. - View Dependent Claims (33, 34, 35, 36)
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Specification