Guidewire having occlusive device and repeatably crimpable proximal end
First Claim
Patent Images
1. A tubular guidewire assembly comprising:
- a guidewire member having a distal end and a proximal end;
the guidewire member comprising an extended crimpable section proximate the proximal end and a main body portion distal of the extended crimpable section;
a lumen extending through the extended crimpable section and through the main body portion from the proximal end of the guidewire member and continuing to the distal end of the guidewire member;
an occlusive balloon proximate the distal end, the occlusive balloon being fluidly connected to the lumen so as to enable inflation and deflation of the occlusive balloon through the lumen upon respectively introducing and withdrawing fluid from the proximal end of the lumen;
the extended crimpable section being adapted to be selectively sealed with a permanent crimp at each of a plurality of separate locations to form successive airtight seals of the lumen to maintain the occlusive balloon inflated when it is in an inflated state, the extended crimpable section being dimensioned so as to be no larger in any outer diameter after being crimped than the largest outer diameter of any other portion of the tubular guidewire assembly; and
,the extended crimpable section being quickly and reliably severable distal to each crimp to reopen the lumen to thereby provide for withdrawing fluid from the proximal end of the lumen and thereby deflate the occlusive balloon.
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Accused Products
Abstract
A tubular guidewire assembly having a distal occlusive device and an extended crimpable section proximate a proximal end that is adapted to connect to a gas inflation/evacuation system. The extended crimpable section can be selectively sealed at one of a plurality of separate locations to form an airtight seal of the tubular guidewire assembly. Each time a deflation of the occlusive device is desired in order to reestablish blood flow to a vessel downstream of the occlusive device, the extended crimpable section preferably is cut distal to the location of the last seal to quickly deflate the occlusive device.
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Citations
23 Claims
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1. A tubular guidewire assembly comprising:
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a guidewire member having a distal end and a proximal end; the guidewire member comprising an extended crimpable section proximate the proximal end and a main body portion distal of the extended crimpable section; a lumen extending through the extended crimpable section and through the main body portion from the proximal end of the guidewire member and continuing to the distal end of the guidewire member; an occlusive balloon proximate the distal end, the occlusive balloon being fluidly connected to the lumen so as to enable inflation and deflation of the occlusive balloon through the lumen upon respectively introducing and withdrawing fluid from the proximal end of the lumen; the extended crimpable section being adapted to be selectively sealed with a permanent crimp at each of a plurality of separate locations to form successive airtight seals of the lumen to maintain the occlusive balloon inflated when it is in an inflated state, the extended crimpable section being dimensioned so as to be no larger in any outer diameter after being crimped than the largest outer diameter of any other portion of the tubular guidewire assembly; and
,the extended crimpable section being quickly and reliably severable distal to each crimp to reopen the lumen to thereby provide for withdrawing fluid from the proximal end of the lumen and thereby deflate the occlusive balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A tubular guidewire assembly comprising:
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a guidewire member having a proximal end and a distal end and including a main body portion with a lumen extending therethrough and an extended crimpable section with a lumen extending therethrough, the extended crimpable section being joined to the main body portion and extending from the main body portion to the proximal end of the guidewire member, the lumens of the main body portion and the extended crimpable section being in fluid communication with each other; an occlusive balloon proximate the distal end of the guidewire member, the occlusive balloon being in fluid communication with the lumen of the main body portion and thereby in fluid communication with the lumen of the extended crimpable section so as to enable inflation of the occlusive balloon upon introduction of fluid into the lumens at the proximal end of the guidewire member and deflation of the occlusive balloon upon withdrawal of fluid from the lumens at the proximal end of the guidewire member; the extended crimpable section being of sufficient length to enable the lumen therethrough to be repeatably selectively sealed airtight by flattening the extended crimpable section with successive permanent crimps at separate locations along its length to maintain the occlusive balloon inflated whenever it is in its inflated state; and
,the extended crimpable section being structured so that it can be quickly and reliably severed distal to each successive permanent crimp to reopen its lumen and thereby provide for rapid deflation of the occlusive balloon.
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Specification