Catheter system for introducing an expandable stent into the body of a patient
AssigneeJenaValve Technology, Inc.
InventorsHelmut STRAUBINGER, Arnulf MAYER, Johannes JUNG
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Abstract
This disclosure relates to a catheter system for introducing a heart valve stent into the body of a patient. The catheter system includes a catheter tip having a seat portion for accommodating the stent in its collapsed state and a stent holder for releasably fixing the stent, wherein the seat portion is constituted by a first sleeve and a second sleeve, said sleeves being moveable relative to each other and relative to the stent holder, and a catheter shaft for connecting the catheter tip to a handle.
Claims20
A delivery system for introducing an expandable stent into a heart of a patient, the delivery system comprising a distal end portion comprising:
- a catheter tube;
- an end support coupled to a distal end of the catheter tube, a proximal surface of the end support being tapered;
- a stent holder comprising an outer surface that is tapered;
- and
- a sheath movable relative to each of the catheter tube and the stent holder,
- wherein the distal end portion of the delivery system is configured to house the expandable stent comprising at least two positioning arches in a collapsed configuration such that the expandable stent is releasably engaged with the stent holder.
A method for introducing an expandable stent into a heart of a patient, the method comprising:
- advancing a distal end portion of a delivery system through an aortic arch of a patient towards an aortic valve of the patient, the distal end portion comprising:
- a catheter tube;
- an end support coupled to a distal end of the catheter tube and comprising a proximal surface that is tapered;
- a stent holder comprising an outer surface that is tapered;
- and
- a sheath movable relative to each of the catheter tube and the stent holder;
- introducing the distal end portion through the aortic valve, wherein the expandable stent comprises at least two positioning arches and is housed in the distal end portion in a collapsed configuration such that the expandable stent is releasably engaged with the stent holder;
- and
- releasing the expandable stent from the stent holder to cause the expandable stent to transition to an expanded configuration within the aortic valve.
Dependencies are inferred from the claim text.