Gas inflation/evacuation system and sealing system for guidewire assembly having occlusive device
First Claim
1. A gas inflation/evacuation system and sealing system removably connectible to a proximal portion of a guidewire assembly which has an occlusive balloon at a distal portion thereof, comprising:
- means for evacuating the guidewire assembly;
means for introducing a biocompatible gas into the guidewire assembly to inflate the occlusive balloon at the distal portion of the guidewire assembly a plurality of times; and
, means for selectively sealing the guidewire assembly by forming successive permanent airtight seals at separate locations along the proximal portion of the guidewire assembly to retain the biocompatible gas in the occlusive balloon a plurality of times, the means for selectively sealing including a mechanism selected from the group of mechanisms consisting of a crimping mechanism and a plugging mechanism.
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Accused Products
Abstract
A gas inflation/evacuation system and sealing system for use with occlusive devices such as occlusive balloons in vascular procedures. The gas inflation/evacuation system is removably connectible to a proximal portion of a guidewire assembly and includes an evacuation system to evacuate the guidewire assembly and an inflation system for introducing a biocompatible gas under pressure into the guidewire assembly to inflate an occlusive device a plurality of times. A sealing system is also removably connectible to the proximal portion of the guidewire assembly and selectively seals an extended sealable section at the proximal portion of the guidewire assembly at one of a plurality of separate locations to form an airtight seal of the guidewire assembly. Each time a deflation of the occlusive device is desired in order to reestablish blood flow to the vessel downstream of the occlusive device, the extended sealable section at the proximal portion of the guidewire assembly preferably is cut distal to the location of the last seal to quickly deflate the occlusive device.
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Citations
27 Claims
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1. A gas inflation/evacuation system and sealing system removably connectible to a proximal portion of a guidewire assembly which has an occlusive balloon at a distal portion thereof, comprising:
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means for evacuating the guidewire assembly;
means for introducing a biocompatible gas into the guidewire assembly to inflate the occlusive balloon at the distal portion of the guidewire assembly a plurality of times; and
,means for selectively sealing the guidewire assembly by forming successive permanent airtight seals at separate locations along the proximal portion of the guidewire assembly to retain the biocompatible gas in the occlusive balloon a plurality of times, the means for selectively sealing including a mechanism selected from the group of mechanisms consisting of a crimping mechanism and a plugging mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 25, 26)
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9. A gas inflation/evacuation system and sealing system removably connectible to a proximal portion of a guidewire assembly which has an occlusive balloon at a distal portion thereof, comprising:
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a first syringe that selectively evacuates the guidewire assembly;
a second syringe that selectively introduces a biocompatible gas into the guidewire assembly to inflate the occlusive balloon at the distal portion of the guidewire assembly a plurality of times;
a sealing assembly removably connectible to the proximal portion of the guidewire assembly, the sealing assembly including a mechanism that selectively seals the proximal portion of the guidewire assembly at one of a plurality of separate locations to form one of a plurality of successive permanent airtight seals of the guidewire assembly; and
,a valve arrangement that selectively opens and closes communication between the sealing assembly and the first syringe and between the sealing assembly and the second syringe. - View Dependent Claims (10, 11, 12, 13, 14, 15, 27)
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16. A gas inflation/evacuation system and sealing system selectively operably connectable to and removable from a proximal portion of a guidewire assembly which has an occlusive balloon at a distal portion thereof, comprising:
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a handheld unit including a crimping mechanism having a first aperture and a sealing mechanism having a second aperture, there being a passageway extending from the first aperture to the second aperture for receiving the proximal portion of the guidewire assembly;
a first syringe system that selectively evacuates the guidewire assembly;
a second syringe system containing a volume of a biocompatible gas sufficient to inflate the occlusive balloon at the distal portion of the guidewire assembly a plurality of times; and
,conduits operably connecting the first syringe system and the second syringe system to the second aperture of the handheld unit, the conduits including a valve arrangement that selectively connects only one of the first syringe system and the second syringe system to the second aperture at a time. - View Dependent Claims (17, 18, 19)
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20. A gas inflation/evacuation system and sealing system removably connectible to a proximal portion of a guidewire assembly which has an occlusive balloon at a distal portion thereof, comprising:
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a handheld unit including a crimping mechanism having a first aperture and a sealing mechanism having a second aperture, there being a passageway extending from the first aperture to the second aperture for receiving the proximal portion of the guidewire assembly;
an evacuating syringe that selectively evacuates the guidewire assembly; and
,a plurality of inflation syringes, each inflation syringe containing a volume of a biocompatible gas sufficient to inflate the occlusive balloon at the distal portion of the guidewire assembly a single time. - View Dependent Claims (21, 22)
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23. A gas inflation/evacuation system and sealing system removably connectible to a proximal portion of a guidewire assembly which has an occlusive balloon at a distal portion thereof, comprising:
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a first syringe system that selectively evacuates the guidewire assembly;
a second syringe system that selectively introduces a biocompatible gas into the guidewire assembly to inflate the occlusive balloon at the distal portion of the guidewire assembly a plurality of times; and
a plugging mechanism removably connectible to the proximal portion of the guidewire assembly that selectively seals the proximal portion of the guidewire assembly at one of a plurality of separate locations to form one of a plurality of successive permanent airtight seals of the guidewire assembly, including;
a first aperture and a second aperture in fluid communication, the first aperture being capable of receiving therethrough the proximal portion of the guidewire assembly, and the second aperture being removably attachable to a conduit;
an operational O-ring in coaxial alignment with the first aperture for operational engagement of the proximal portion of the guidewire assembly at a location proximal of the first aperture;
a sealant O-ring in coaxial alignment with the first aperture and proximally spaced from the operational O-ring such that further insertion of the proximal portion of the guidewire assembly through the first aperture and past the operational O-ring will bring the proximal portion of the guidewire assembly into engagement with the sealant O-ring; and
,a sealant confinement layer for receiving the proximal portion of the guidewire assembly some distance past the sealant O-ring, the sealant confinement layer confining sealant material such that insertion of the proximal portion of the guidewire assembly through the sealant confinement layer and into the sealant material forces the sealant material into the proximal portion of the guidewire assembly. - View Dependent Claims (24)
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Specification