Delivery Catheter System With Micro and Macro Movement Control
First Claim
1. A delivery system for percutaneous delivery of an expandable prosthetic heart valve, as such a prosthetic heart valve is to be collapsed and loaded onto a distal deployment portion of the delivery system, the delivery system comprising:
- an elongate catheter portion that extends from a proximal end to a distal end and that includes a first shaft with an axial lumen and a second shaft within the lumen of the first shaft;
a deployment portion at a distal end of the delivery system that is operatively connected with the catheter portion and comprises a plunger attached to the second shaft of the catheter portion and a sheath connected with the first shaft of the catheter portion, wherein relative movement between the first and second shafts also provides relative movement of the plunger and sheath so that a valve supporting portion of the plunger can be effectively covered and uncovered by the sheath; and
a control handle portion at a proximal end of the delivery system and comprising a micro-control actuator that is operatively connected to the first shaft and is provided to advance and retract along a screw shaft that is operatively connected with the second shaft so that translation of the micro-control actuator along the screw shaft by rotation of the micro-control actuator translates the sheath relative to the plunger in a controlled micro-adjustment manner, wherein the micro-control actuator is also releasable from the screw shaft so that the micro-control actuator can be translated along the screw shaft without rotation of the micro-control actuator in a controlled macro-adjustment manner.
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Accused Products
Abstract
A prosthetic valve delivery system that is improved in controllability by way of a proximal handle system. Such a handle system of the present invention advantageously permits a controlled fine or micro movement or adjustment of a distal sheath for uncovering a plunger that is to be loaded with a prosthetic valve for deployment thereof. The delivery system of the present invention permits a trigger-release for a gross or macro movement to the sheath relative to the plunger. Also, the control handle of the delivery system is shaped and contoured for ease in manipulation of the micro-control actuator.
115 Citations
27 Claims
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1. A delivery system for percutaneous delivery of an expandable prosthetic heart valve, as such a prosthetic heart valve is to be collapsed and loaded onto a distal deployment portion of the delivery system, the delivery system comprising:
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an elongate catheter portion that extends from a proximal end to a distal end and that includes a first shaft with an axial lumen and a second shaft within the lumen of the first shaft; a deployment portion at a distal end of the delivery system that is operatively connected with the catheter portion and comprises a plunger attached to the second shaft of the catheter portion and a sheath connected with the first shaft of the catheter portion, wherein relative movement between the first and second shafts also provides relative movement of the plunger and sheath so that a valve supporting portion of the plunger can be effectively covered and uncovered by the sheath; and a control handle portion at a proximal end of the delivery system and comprising a micro-control actuator that is operatively connected to the first shaft and is provided to advance and retract along a screw shaft that is operatively connected with the second shaft so that translation of the micro-control actuator along the screw shaft by rotation of the micro-control actuator translates the sheath relative to the plunger in a controlled micro-adjustment manner, wherein the micro-control actuator is also releasable from the screw shaft so that the micro-control actuator can be translated along the screw shaft without rotation of the micro-control actuator in a controlled macro-adjustment manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A delivery system for percutaneous delivery of an expandable prosthetic heart valve, as such a prosthetic heart valve is to be collapsed and loaded onto a distal deployment portion of the delivery system, the delivery system comprising:
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an elongate catheter portion that extends from a proximal end to a distal end and that includes a first shaft with an axial lumen and a second shaft within the lumen of the outer shaft; a deployment portion at a distal end of the delivery system that is operatively connected with catheter portion and comprises a plunger attached to the second shaft of the catheter portion and a sheath connected with the first shaft of the catheter portion, wherein relative movement between the first and second shafts also provides relative movement of the plunger and sheath so that a valve supporting portion of the plunger can be effectively covered and uncovered by the sheath; and a control handle portion at a proximal end of the delivery system and comprising a micro-control actuator that is operatively connected to the sheath for moving the sheath relative to the plunger by rotation of the micro-control actuator in a controlled micro-adjustment manner, wherein the micro-control actuator is also includes a releasable trigger for permitting linear movement of the micro-control actuator and thus movement of the sheath without rotation of the micro-control actuator in a controlled macro-adjustment manner. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A delivery system for percutaneous delivery of an expandable prosthetic heart valve, as such a prosthetic heart valve is to be collapsed and loaded onto a distal deployment portion of the delivery system, the delivery system comprising:
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an elongate catheter portion that extends from a proximal end to a distal end and that includes a first shaft with an axial lumen and a second shaft within the lumen of the outer shaft; a deployment portion at a distal end of the delivery system that is operatively connected with catheter portion and comprises a plunger attached to the second shaft of the catheter portion and a sheath connected with the first shaft of the catheter portion, wherein relative movement between the first and second shafts also provides relative movement of the plunger and sheath so that a valve supporting portion of the plunger can be effectively covered and uncovered by the sheath; and a control handle portion at a proximal end of the delivery system and comprising a micro-control actuator that is operatively connected to the sheath for moving the sheath relative to the plunger by rotation of the micro-control actuator in a controlled micro-adjustment manner, wherein a front grip is positioned distally adjacent to the micro-control actuator and a carriage is positioned proximally adjacent to the micro-control actuator, and further wherein the front grip, the micro-control actuator, and the carriage are positionable in a linear arrangement next to one another and defining a smooth contoured side profile with at least the front grip and the micro-control actuator including surface curvatures providing at least an outward bulge to the front grip and an inward curve to the micro-control actuator. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification