公开(公告)号：US20250057551A1

公开(公告)日：2025-02-20

申请号：US18936605

申请日：2024-11-04

Applicant: Walk Vascular, LLC

Inventor： David M. Look ,  Mark Mallaby ,  Bradley S. Culbert

IPC: A61B17/22 ,  A61B17/3203 ,  A61M1/00 ,  A61M5/142 ,  A61M5/145

Abstract: 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.

公开(公告)号：US11672561B2

公开(公告)日：2023-06-13

申请号：US16721151

申请日：2019-12-19

Applicant: Walk Vascular, LLC

Inventor： David M. Look ,  Bradley S. Culbert

IPC: A61B17/3207 ,  A61B17/3203 ,  A61B17/22 ,  A61B17/00

CPC classification number: A61B17/320758 ,  A61B17/22 ,  A61B17/32037 ,  A61B2017/00017 ,  A61B2017/00367 ,  A61B2017/00398 ,  A61B2017/00469 ,  A61B2017/00685 ,  A61B2017/00734 ,  A61B2017/22038 ,  A61B2017/22042 ,  A61B2017/22044 ,  A61B2017/22049 ,  A61B2017/22079 ,  A61B2017/22094 ,  A61B2217/005 ,  A61B2217/007

Abstract: A method for treating a patient having thrombus includes providing a manipulation device including a housing configured to be supported by the hand of a user and having a distal and proximal end, a drive system disposed within the housing, and configured to rotate a rotation member, an engagement member coupled to the rotation member and configured to be removably coupled to an elongate medical device, an activation member carried by the housing such that it can be operated by at least a portion of the hand of the user when the housing is supported by the hand of the user, the drive system configured to apply motive force to the engagement member, securing an elongate member to the engagement member, introducing at least the distal end of the elongate member into a blood vessel adjacent a thrombus, operating the activation member to cause at least some rotation of the rotation member, which in turn causes at least some rotation of the distal end of the elongate member at or near the thrombus, and aspirating at least some of the thrombus with an aspiration catheter.

公开(公告)号：US20220387753A1

公开(公告)日：2022-12-08

申请号：US17885783

申请日：2022-08-11

Applicant: Walk Vascular, LLC

Inventor： David M. Look ,  Bradley S. Culbert

IPC: A61M25/00 ,  A61M25/01 ,  A61B17/22 ,  A61B17/3203 ,  A61M1/00

Abstract: A system for aspirating thrombus including an aspiration catheter having a supply lumen, an aspiration lumen, and a first connector hydraulically coupled to the proximal end of the aspiration lumen, and a pressure sensor having an internal passageway and having a distal connector configured to hydraulically couple to the first connector, a proximal connector configured to couple to a vacuum source, and a valve disposed between the distal connector and the proximal connector, the valve having an open state and a closed state.

公开(公告)号：US20220379086A1

公开(公告)日：2022-12-01

申请号：US17885790

申请日：2022-08-11

Applicant: Walk Vascular, LLC

Inventor： David M. Look ,  Bradley S. Culbert

IPC: A61M25/00 ,  A61M25/01 ,  A61B17/22 ,  A61B17/3203 ,  A61M1/00

Abstract: A method for aspirating thrombus in a subject, the method including providing an aspiration catheter having a supply lumen, an aspiration lumen, and a first connector hydraulically coupled to the aspiration lumen. The method further includes providing a pressure sensor having an internal passageway and having a distal connector configured to hydraulically couple to the first connector, a proximal connector configured to couple to a vacuum source, and a valve disposed between the distal connector and the proximal connector, the valve having an open state and a closed state. Following inserting at least a distal portion of the aspiration catheter into the vasculature of a subject, changing the valve from one of the open state and closed state to the other of the open state and closed state such that a change in pressure may be detected by the control circuitry.

公开(公告)号：US20220378446A1

公开(公告)日：2022-12-01

申请号：US17884782

申请日：2022-08-10

Applicant: Walk Vascular, LLC

Inventor： Bradley S. Culbert ,  David M. Look ,  Mark Mallaby

IPC: A61B17/22 ,  A61M25/00 ,  A61M5/00

Abstract: A system for removing intracranial blood or thrombus including a probe having a supply channel and an aspiration channel, the aspiration channel having a distal end and a proximal end, the supply channel having a distal end and a wall, the aspiration channel having an opening at or adjacent its distal end and an interior wall surface, an orifice adjacent the distal end of the supply channel and in fluid communication with the interior of the aspiration channel, wherein the orifice is configured to create a spray pattern when pressurized fluid is pumped through the supply channel such that the spray pattern impinges on the interior wall surface of the aspiration channel, and an ultrasound device at or adjacent the opening of the aspiration channel, and configured to operate at a frequency of between about 1 kHz and about 20 MHz.

公开(公告)号：US10716583B2

公开(公告)日：2020-07-21

申请号：US15493584

申请日：2017-04-21

Applicant: WALK VASCULAR, LLC

Inventor： David M. Look ,  Mark Mallaby ,  Bradley S. Culbert

IPC: A61B17/22 ,  A61M5/145 ,  A61M5/142 ,  A61M1/00 ,  A61B17/3203

Abstract: 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.

公开(公告)号：US20200155178A1

公开(公告)日：2020-05-21

申请号：US16591471

申请日：2019-10-02

Applicant: WALK VASCULAR, LLC

Inventor： Bradley S. Culbert ,  David M. Look ,  Mark Mallaby

IPC: A61B17/22 ,  A61M25/00 ,  A61M5/00

Abstract: A system for aspirating thrombus and delivering an agent includes an aspiration catheter having a supply lumen having a proximal end, a distal end, and a wall, and an aspiration lumen having a proximal end, an open distal end, and an interior wall surface adjacent the open distal end, and at least one orifice at or adjacent the distal end of the supply lumen, in fluid communication with the aspiration lumen and located proximally of the open distal end of the aspiration lumen, wherein the at least one orifice is configured to create a spray pattern that is caused to impinge on the interior wall surface of the aspiration lumen such that the spray pattern upon impinging on the interior wall surface is caused to transform into at least a substantially distally-oriented flow capable of exiting the open distal end of the aspiration lumen.

公开(公告)号：US09883877B2

公开(公告)日：2018-02-06

申请号：US14715451

申请日：2015-05-18

Applicant: WALK VASCULAR, LLC

Inventor： David M. Look ,  Mark Mallaby

IPC: A61B17/22 ,  A61M5/145 ,  A61M5/142 ,  A61M1/00 ,  A61B17/3203

CPC classification number: A61B17/22 ,  A61B17/32037 ,  A61B2017/22039 ,  A61B2017/22079 ,  A61B2017/22084 ,  A61B2217/005 ,  A61B2217/007 ,  A61M1/0031 ,  A61M1/0035 ,  A61M1/0058 ,  A61M1/0068 ,  A61M1/0084 ,  A61M5/14216 ,  A61M5/1452 ,  A61M2209/10

Abstract: 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.

公开(公告)号：US12150659B2

公开(公告)日：2024-11-26

申请号：US17884063

申请日：2022-08-09

Applicant: Walk Vascular, LLC

Inventor： David M. Look ,  Mark Mallaby ,  Bradley S. Culbert

IPC: A61B17/22 ,  A61B17/3203 ,  A61M1/00 ,  A61M5/142 ,  A61M5/145

Abstract: 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.

公开(公告)号：US20220387752A1

公开(公告)日：2022-12-08

申请号：US17885763

申请日：2022-08-11

Applicant: Walk Vascular, LLC

Inventor： David M. Look ,  Bradley S. Culbert

IPC: A61M25/00 ,  A61M25/01 ,  A61B17/22 ,  A61B17/3203 ,  A61M1/00

Abstract: A method for removing thrombus from a patient that includes providing an aspiration catheter including a supply lumen and an aspiration lumen, with a connector hydraulically coupled to the proximal end of the aspiration lumen, the connector having an interior cavity, a proximal end and a distal end. The method further includes coupling or causing to couple the supply lumen of the aspiration catheter to a fluid source, coupling or causing to couple the aspiration lumen of the aspiration catheter to a vacuum source, and coupling or causing to couple a pump for injecting fluid from the fluid source through the supply lumen and through the opening into the aspiration lumen. The method includes setting a pump with a control unit such that an input pressure of the supply lumen is between about 650 pounds per square inch and about 1200 pounds per square inch.