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23-01-2020 дата публикации

SYSTEMS AND METHODS FOR REMOVAL OF BLOOD AND THROMBOTIC MATERIAL

Номер: US20200022711A1
Автор: CUIBERT Bradley S., Look David M.
Принадлежит:

A method for improving a flow condition through a catheter includes coupling a distal end of a first conduit of a tubing set to an aspiration lumen of an aspiration catheter, coupling a proximal end of the first conduit to a vacuum source, coupling a distal end of a second conduit of the tubing set to a supply lumen of the aspiration catheter, coupling a proximal end of the second conduit to a first fluid source, inserting a distal end of a sheath within the vasculature of a subject, placing the aspiration catheter through the sheath and advancing the aspiration catheter such that an open distal end of the aspiration lumen of the aspiration catheter is distal to a distal end of the sheath and is in proximity to a thrombus within a blood vessel of a subject, coupling an extension conduit in fluid communication with a lumen of the sheath to a second fluid source, and activating a pump such that pressurized fluid from the first fluid source is applied to the supply lumen of the aspiration catheter, wherein when insufficient flowable material is present adjacent the open distal end of the aspiration lumen, fluid from the second fluid source is caused to flow through the lumen of the sheath. 1. A method for improving a flow condition through a catheter , comprising: an elongate shaft configured for placement within a blood vessel of a subject;', 'a supply lumen and an aspiration lumen each extending along the shaft, the supply lumen having a proximal end and a distal end, and the aspiration lumen having a proximal end and an open distal end; and', 'an opening at or near the distal end of the supply lumen, the opening configured to allow the injection of pressurized fluid from a first fluid source into the aspiration lumen at or near the distal end of the aspiration lumen when the pressurized fluid is caused or allowed to flow through the supply lumen;, 'providing an aspiration catheter comprisingproviding a sheath comprising a proximal end, a distal end and a lumen ...

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Номер записи: 1
24-09-2020 дата публикации

SYSTEMS AND METHODS FOR REMOVAL OF BLOOD AND THROMBOTIC MATERIAL

Номер: US20200297363A1
Автор: CUIBERT Bradley S., Look David M., Mallaby Mark
Принадлежит:

A system for aspirating thrombus includes a catheter having a supply lumen having a distal end and an aspiration lumen configured to couple to a vacuum source and having an interior wall surface and an open distal end, an orifice at or near the distal end of the supply lumen, in fluid communication with the interior of the aspiration lumen, the orifice located proximally of the open distal end of the aspiration lumen, wherein the orifice is configured to create a spray pattern that impinges on the interior wall surface of the aspiration lumen when a distal end of the aspiration catheter is immersed within an aqueous environment, and a disposable tubing set having a first conduit configured to couple the supply lumen of the aspiration catheter to a fluid source, and a pump component associated with the first conduit and configured to detachably couple to a drive unit. 1an aspiration catheter having a supply lumen and an aspiration lumen, the supply lumen having a distal end, the aspiration lumen configured to couple to a vacuum source and having an interior wall surface, and an open distal end;an orifice at or near the distal end of the supply lumen, in fluid communication with the interior of the aspiration lumen, the orifice located proximally of the open distal end of the aspiration lumen, wherein the orifice is configured to create a spray pattern when pressurized fluid is pumped through the supply lumen such that the spray pattern impinges on the interior wall surface of the aspiration lumen;a tubing set having a first conduit configured to couple the supply lumen of the aspiration catheter to a fluid source;a pump base comprising a pump and circuitry, the pump controlled by the circuitry, the pump configured to pump fluid from the fluid source through the supply lumen; andan extension tube having a second conduit having a sterile control and configured to be attached between the aspiration lumen and the vacuum source, the sterile control configured to be ...

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Номер записи: 2