Devices for pumping blood, related systems, and related methods

Devices for pumping blood, related systems, and related methods

An intravascular device for pumping blood includes a catheter (300) comprising a membrane chamber (304) located between a proximal end and a distal end of the catheter (300). Following intravascular insertion the membrane chamber is moveable between a contracted configuration and an expanded configu...

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Hauptverfasser: Ashton, Wesley, Ronai, Abraham, Walters, Daniel, Nigroni, Paul
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Sprache:eng
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DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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creator Ashton, Wesley
Ronai, Abraham
Walters, Daniel
Nigroni, Paul
description An intravascular device for pumping blood includes a catheter (300) comprising a membrane chamber (304) located between a proximal end and a distal end of the catheter (300). Following intravascular insertion the membrane chamber is moveable between a contracted configuration and an expanded configuration that has a first diameter. An inflatable membrane (306) is disposed within the membrane chamber (304) wherein the membrane chamber (304) comprises a chamber wall free of valves. The intravascular device comprises a valve chamber (322, 324) separate from the membrane chamber (304), wherein the valve chamber (322, 324) has a second diameter that is smaller than the first diameter of the membrane chamber (304). The intravascular device includes a first one-way valve (310) and a second one-way valve (312) configured to permit blood flow in a first direction. The first one-way valve (310) is positioned proximal to the membrane chamber (304), and the second one-way valve (312) is positioned distal to the membrane chamber (304). A third one-way valve (310) positioned between the second one-way valve (312) and the membrane chamber (304), wherein the third one-way valve (310) is configured to permit blood flow in a second direction opposite to the first direction.
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Following intravascular insertion the membrane chamber is moveable between a contracted configuration and an expanded configuration that has a first diameter. An inflatable membrane (306) is disposed within the membrane chamber (304) wherein the membrane chamber (304) comprises a chamber wall free of valves. The intravascular device comprises a valve chamber (322, 324) separate from the membrane chamber (304), wherein the valve chamber (322, 324) has a second diameter that is smaller than the first diameter of the membrane chamber (304). The intravascular device includes a first one-way valve (310) and a second one-way valve (312) configured to permit blood flow in a first direction. The first one-way valve (310) is positioned proximal to the membrane chamber (304), and the second one-way valve (312) is positioned distal to the membrane chamber (304). 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A third one-way valve (310) positioned between the second one-way valve (312) and the membrane chamber (304), wherein the third one-way valve (310) is configured to permit blood flow in a second direction opposite to the first direction.</abstract><oa>free_for_read</oa></addata></record>
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subjects DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
title Devices for pumping blood, related systems, and related methods
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