Implantable valve system
First Claim
Patent Images
1. A delivery catheter for a valve, comprising:
- a sheath;
a catheter having a predetermined curved portion, the catheter at least partially positioned within the sheath;
a valve having an opening; and
a cannula having a sharp pointed tip and an aperture positioned proximal to the sharp pointed tip, the sharp pointed tip of the cannula extends at least partially from a distal end of the catheter through the opening of the valve, and the predetermined curved portion of the catheter positions the sharp pointed tip of the cannula substantially perpendicular to a longitudinal axis of the sheath.
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Abstract
An implantable valve having a valve element or leaflet and a base that is attachable to a vessel wall using a connector such as a screw, pin or a staple. The valve can be implanted using a catheter to position the valve in a desired location and drive the connector into the vessel wall. The valve can be used as a venous valve to control blood flow within the veins, arteries, heart or the aorta of a patient.
436 Citations
20 Claims
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1. A delivery catheter for a valve, comprising:
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a sheath; a catheter having a predetermined curved portion, the catheter at least partially positioned within the sheath; a valve having an opening; and a cannula having a sharp pointed tip and an aperture positioned proximal to the sharp pointed tip, the sharp pointed tip of the cannula extends at least partially from a distal end of the catheter through the opening of the valve, and the predetermined curved portion of the catheter positions the sharp pointed tip of the cannula substantially perpendicular to a longitudinal axis of the sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A delivery catheter for a valve, comprising;
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a sheath; a catheter including a distal end at least partially defining shoulders and including a predetermined curved portion that extends proximally from the distal end, the catheter at least partially positioned within the sheath; a valve having an opening; and a cannula having a sharp pointed tip and an aperture positioned proximal to the sharp pointed tip, the cannula having a cross-sectional area smaller than a cross-sectional area defined by a distal end of the catheter, the sharp pointed tip of the cannula extends at least partially from the distal end of the catheter through the opening of the valve so that the shoulders abut the valve adjacent the opening, and the predetermined curved portion of the catheter positions the sharp pointed tip of the cannula substantially perpendicular to a longitudinal axis of the sheath. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification