Coiled, perfusion balloon catheter
First Claim
Patent Images
1. A perfusion balloon catheter comprising:
- an elongated tubular shaft having a proximal end, a distal end and a lumen extending therethrough;
a helical coil of flexible, inflatable tube disposed at the distal end of the tubular shaft, the tube having a proximal end in fluid communication with the lumen and having a sealed distal end, the helical coil forming a composite outer surface and composite inner surface which define an inflatable tubular-shaped balloon, the composite inner surface further defining a perfusion passage;
a longitudinally-extending support structure through which the tube is looped to form the balloon; and
retainer means for securing the tube to the support structure.
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Accused Products
Abstract
A perfusion balloon catheter includes an inflatable balloon formed by a series of loops of a flexible, inflatable tube in a generally cooperative tubular shape. The loops are supported by a coiled support member and are locked within the coiled support member by a wire retainer. The cooperative tubular shape of the individual loops perform to provide an inflatable cooperative outer surface of the balloon and a perfusion passage within the balloon.
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Citations
39 Claims
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1. A perfusion balloon catheter comprising:
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an elongated tubular shaft having a proximal end, a distal end and a lumen extending therethrough; a helical coil of flexible, inflatable tube disposed at the distal end of the tubular shaft, the tube having a proximal end in fluid communication with the lumen and having a sealed distal end, the helical coil forming a composite outer surface and composite inner surface which define an inflatable tubular-shaped balloon, the composite inner surface further defining a perfusion passage; a longitudinally-extending support structure through which the tube is looped to form the balloon; and retainer means for securing the tube to the support structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A perfusion balloon catheter comprising:
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an elongated tubular shaft having a proximal end, a distal end, and a shaft lumen which extends from the proximal to the distal end; a balloon support extending distally from the distal end of the shaft, the balloon support including a helical wire coil; and a flexible, inflatable tube having a proximal end in fluid communication with the shaft lumen and having a sealed distal end, the inflatable tube being wound over the helical wire coil to form a plurality of adjacent loops which, upon inflation of the tube, form a composite balloon having an outer surface for applying outward force to a vessel wall and an inner surface for defining a fluid passage through the balloon to permit perfusion while the balloon is inflated. - View Dependent Claims (13, 14, 15)
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16. A perfusion balloon catheter comprising:
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an elongated tubular shaft having a proximal end, a distal end and an inner surface which defines a lumen from the proximal end to the distal end, the lumen further being exposed by an opening at the distal end of the shaft; a helical coil of flexible, inflatable tube disposed at the distal end of the tubular shaft to form an inflatable tubular-shaped balloon, the tube having a proximal end in fluid communication with the lumen and having a sealed distal end; a longitudinally-extending support structure through which the tube is looped to form the balloon, wherein the support structure is a coiled support member having an outer surface, a proximal end and a distal end; and retainer means for securing the tube to the support structure, wherein the retainer means includes a wire which extends through the coiled support member to capture loops of the tube in the coiled support member. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A rapid exchange perfusion balloon catheter for use with a guide wire, the catheter comprising:
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an elongated tubular shaft having a proximal end, a distal end and a lumen extending therethrough; a tubular-shaped balloon formed by a helical coil of flexible, inflatable tube disposed at the distal end of the tubular shaft, the tube having a proximal end in fluid communication with the distal end of the shaft and having a sealed distal end, the balloon having a perfusion passage through a central region of the helical coil; means connected to the distal end of the shaft and extending distally of the distal end of the shaft for retaining the helical coil of flexible tube in a shape of the balloon; and guide means external to the shaft for engaging the guide wire to permit longitudinal movement of the balloon along the guide wire, the guide means associated with the means for retaining the helical coil of flexible tube. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. A rapid exchange perfusion balloon catheter for use with a guide wire, the catheter comprising:
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an elongated tubular shaft having a proximal end, a distal end and a lumen extending therethrough; a tubular-shaped balloon formed by a helical coil of flexible, inflatable tube disposed at the distal end of the tubular shaft, the tube having a proximal end bonded within and in fluid communication with the distal end of the shaft and having a sealed distal end, the balloon having a perfusion passage through a central region of the helical coil; means connected to the distal end of the shaft for retaining the helical coil of flexible tube in a shape of the balloon; and guide means external to and associated with the shaft for engaging the guide wire to permit longitudinal movement of the balloon along the guide wire, wherein the guide means is a tube having a proximal end, a distal end and a guide wire lumen extending therethrough. - View Dependent Claims (33, 34, 35, 36)
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37. A method of sustaining an opening of a blood vessel so as to allow flow of blood through the blood vessel, the method comprising:
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(a) providing a perfusion balloon which includes;
an elongated tubular shaft with an inflation lumen;
an open support structure which extends distally from the distal end of the shaft; and
an inflatable balloon disposed at the distal end of the shaft and in fluid communication with the inflation lumen, the balloon being formed by a flexible, inflatable tube which is looped through the support structure to form an inflatable helical coil having a perfusion passage through a central region of the helical coil;(b) advancing the perfusion balloon catheter into the blood vessel until the balloon is positioned at a desired location within the blood vessel; and (c) inflating the balloon so as to cause an outer composite surface of the helical coil to expand and contact a wall of the blood vessel and thereby maintain, for an extended period, a flow of blood through the perfusion passage with the balloon inflated. - View Dependent Claims (38, 39)
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Specification