Rotational detachable outer catheter
AssigneeCephea Valve Technologies, Inc.
InventorsSean A. McNiven, Randolf Von Oepen, Austin Sherman, Francisco Valencia
Life of this patent
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Abstract
A delivery system for delivering an implantable medical device, such as a prosthetic heart valve, intravascularly to a target site, such as a heart valve annulus in a patient. The system includes an outer sheath, a connecting arm connected to the outer sheath, a valve cover at the distal end of the outer sheath and a steering catheter within the outer sheath. A handle is connected to the steering catheter so that rotation of the handle rotates the steering catheter. A coupling mechanism has a first condition rotationally coupling the outer sheath to the steering catheter, and a second condition in which the outer sheath is rotationally uncouple from the steering catheter.
Claims11
A delivery system for delivering a prosthetic heart valve to a targeted anatomical site within a patient, the delivery system comprising:
- a catheter assembly, including:
- an outer sheath extending in a longitudinal direction between a proximal end and a distal end;
- a hemostasis valve connected to the outer sheath at the proximal end, the hemostasis valve including a connecting arm extending away from the outer sheath in a direction transverse to the longitudinal direction;
- a valve cover at the distal end of the outer sheath, the valve cover having a proximal end, a distal end, and a size and a shape for housing the prosthetic heart valve in a collapsed condition;
- and
- a steering catheter coaxially arranged within the outer sheath, the steering catheter having a longitudinal axis and a flexible distal portion capable of deflecting in multiple directions relative to the longitudinal axis, wherein deflection of the distal portion of the steering catheter causes a corresponding deflection of a distal portion of the outer sheath;
- a handle connected to the steering catheter such that rotation of the handle causes a corresponding rotation of the steering catheter about the longitudinal axis;
- a coupling mechanism having a first condition in which the outer sheath is rotationally coupled to the steering catheter so that rotation of the steering catheter about the longitudinal axis results in a corresponding rotation of the outer sheath, the coupling mechanism having a second condition in which the outer sheath is rotationally uncoupled from the steering catheter so that rotation of the steering catheter about the longitudinal axis does not result in a corresponding rotation of the outer sheath;
- and
- a rigid keyway overlapping a proximal portion of the outer sheath and having a first end fixedly connected to the handle and a second end, the rigid keyway having an elongated slot extending in the longitudinal direction, the slot being sized to receive the connecting arm so that the connecting arm is slidable in the longitudinal direction within the slot.
Dependencies are inferred from the claim text.