Catheter
First Claim
1. A system for implantation in a human heart via a catheter system, comprising:
- (i) a generally tubular expandable stent having a prosthetic heart valve connected within the stent;
(ii) a flexible annular segmented catheter body attached circumferentially around a proximal end of the stent;
(iii) a plurality of tissue anchors disposed along the length of the catheter body; and
(iv) a length-adjustment element disposed within the catheter body;
wherein the length-adjustment element comprises a fluid pressure system, wherein generating an increased pressure within a lumen of the catheter body lengthens the catheter body, and generating a decreased pressure shortens the catheter body;
wherein the fluid pressure system comprises;
a plurality of hollow cavities are disposed within the catheter body along a longitudinal axis;
a plurality of segments are disposed along the length of the catheter body, and each segment having a closable opening that penetrates a flexible outer wall of the catheter body;
each hollow cavity within each segment has a closable fluid lock between adjacent segments;
a slidable element is disposed within each of the plurality of hollow cavities, the slidable element operating to open the closable fluid lock of a segment by sliding longitudinally towards a proximal end of the catheter body, and the slidable element operating to close the closable fluid lock of a segment by sliding longitudinally towards a distal end of the catheter body.
6 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a catheter (10a), comprising a flexible catheter body (10a) forming at least two hollow spaces (90, 100/110) along the longitudinal extension thereof, characterized in that the catheter body (10a) comprises at least two consecutively arranged sections (20) having sheaths (60) that are arranged between the sections (20) and seal the hollow spaces (90, 100/110) at least in some sections, wherein the one hollow space (90) is designed so it communicates with at least one opening (70) penetrating the catheter wall in each section (20), and the other hollow space (100/110) is equipped to introduce an element (40/50) that brings about a longitudinal change of at least one of the sections (20).
50 Citations
11 Claims
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1. A system for implantation in a human heart via a catheter system, comprising:
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(i) a generally tubular expandable stent having a prosthetic heart valve connected within the stent; (ii) a flexible annular segmented catheter body attached circumferentially around a proximal end of the stent; (iii) a plurality of tissue anchors disposed along the length of the catheter body; and (iv) a length-adjustment element disposed within the catheter body; wherein the length-adjustment element comprises a fluid pressure system, wherein generating an increased pressure within a lumen of the catheter body lengthens the catheter body, and generating a decreased pressure shortens the catheter body; wherein the fluid pressure system comprises; a plurality of hollow cavities are disposed within the catheter body along a longitudinal axis; a plurality of segments are disposed along the length of the catheter body, and each segment having a closable opening that penetrates a flexible outer wall of the catheter body; each hollow cavity within each segment has a closable fluid lock between adjacent segments; a slidable element is disposed within each of the plurality of hollow cavities, the slidable element operating to open the closable fluid lock of a segment by sliding longitudinally towards a proximal end of the catheter body, and the slidable element operating to close the closable fluid lock of a segment by sliding longitudinally towards a distal end of the catheter body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification