EMBOLIC PROTECTION DEVICE AND METHODS OF USE
First Claim
1. A gas inflator comprising:
- a shuttle mechanism for delivering a bolus of gas to an expandable member via an inflation lumen having one or more outlet ports in communication with the inflation lumen; and
a high pressure gas source having an inlet port in fluid communication with the shuttle mechanism.
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Accused Products
Abstract
An evacuation sheath assembly and method of reducing or removing a blockage within a vessel without permitting embolization of particulate matter is provided. The evacuation sheath assembly includes a first elongate tubular member, having proximal and distal ends and a main lumen configured to be placed in fluid communication with a blood vessel. An expandable member is provided on a distal portion of the tubular member. The evacuation assembly further includes a second elongate tubular member having an inflation lumen configured to be placed in fluid communication with the expandable member and a gas inflator. The gas inflator is configured to be placed in fluid communication with the inflation lumen in order to provide a regulated pressure gas source for inflating the expandable member.
9 Citations
20 Claims
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1. A gas inflator comprising:
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a shuttle mechanism for delivering a bolus of gas to an expandable member via an inflation lumen having one or more outlet ports in communication with the inflation lumen; and a high pressure gas source having an inlet port in fluid communication with the shuttle mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A gas inflator comprising:
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a shuttle mechanism for controlling gas flow to an expandable member via an inflation lumen, the shuttle mechanism comprising; a shuttle chamber having a pressure chamber and a vacuum chamber; a shuttle movable within the shuttle chamber between at least first and second positions; a high pressure gas source; a vacuum source; wherein the shuttle is operable to alternately place the vacuum source in flow communication with the pressure chamber, the high pressure gas source in flow communication with the pressure chamber, and the pressure chamber in flow communication with the inflation lumen.
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Specification