Distal tip assembly for a heart valve delivery catheter
First Claim
1. A distal tip assembly for a catheter, the catheter having a distal end and a proximal end, the distal tip assembly comprising:
- a flexible tip;
a tip guard positioned at the proximal end of the flexible tip;
a first valve retaining sleeve, wherein the first valve retaining sleeve is configured to be axially movable over the flexible tip from a proximal position to a distal position;
a second valve retaining sleeve positioned proximally to the first valve retaining sleeve, wherein the second valve retaining sleeve is axially moveable with respect to the first valve retaining sleeve; and
a flexible connector having a proximal end and a distal end, wherein the proximal end of the flexible connector is attached to the distal end of the first valve retaining sleeve,wherein the tip guard of the flexible tip is encompassed by the first valve retaining sleeve when the first valve retaining sleeve is in its proximal position, and wherein the tip guard is exposed on the proximal side of the first valve retaining sleeve when the first valve retaining sleeve is in its distal position.
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Accused Products
Abstract
A catheter assembly according to the present invention includes a handle assembly, an introducer sheath, and a distal tip assembly. The distal tip assembly can include first and second retaining sleeves and a slotted tip with a non-traumatic tip guard positioned at the proximal end of the slotted tip. The handle assembly can include a fixed main handle and two or more rotating handles that allow a user to control the distal tip assembly of the catheter. Each control knob on the handle assembly controls a portion of the components on the distal tip of the catheter by allowing for precise manipulation of various delivery shafts. Each delivery shaft extends from the handle assembly to respective positions towards the distal end of the catheter.
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Citations
14 Claims
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1. A distal tip assembly for a catheter, the catheter having a distal end and a proximal end, the distal tip assembly comprising:
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a flexible tip; a tip guard positioned at the proximal end of the flexible tip; a first valve retaining sleeve, wherein the first valve retaining sleeve is configured to be axially movable over the flexible tip from a proximal position to a distal position; a second valve retaining sleeve positioned proximally to the first valve retaining sleeve, wherein the second valve retaining sleeve is axially moveable with respect to the first valve retaining sleeve; and a flexible connector having a proximal end and a distal end, wherein the proximal end of the flexible connector is attached to the distal end of the first valve retaining sleeve, wherein the tip guard of the flexible tip is encompassed by the first valve retaining sleeve when the first valve retaining sleeve is in its proximal position, and wherein the tip guard is exposed on the proximal side of the first valve retaining sleeve when the first valve retaining sleeve is in its distal position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A distal tip assembly for a catheter, the catheter having a distal end and a proximal end, the distal tip assembly comprising:
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a flexible tip; a tip guard positioned at the proximal end of the flexible tip, wherein the tip guard is cone-shaped; a first valve retaining sleeve, wherein the first valve retaining sleeve is configured to be axially movable over the flexible tip from a proximal position to a distal position; and a second valve retaining sleeve positioned proximally to the first valve retaining sleeve, wherein the second valve retaining sleeve is axially moveable with respect to the first valve retaining sleeve, wherein the tip guard of the flexible tip is encompassed by the first valve retaining sleeve when the first valve retaining sleeve is in its proximal position, and wherein the tip guard is exposed on the proximal side of the first valve retaining sleeve when the first valve retaining sleeve is in its distal position. - View Dependent Claims (13, 14)
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Specification