Systems for remotely controlling aspiration patterns

Abstract

An aspiration system includes a pump and a control system in communication with the pump. The control system includes a microcontroller, an antenna configured to receive a signal, and a pump control board in communication with the microcontroller. The antenna is in communication with the microcontroller. Upon receiving the signal, the pump control board operates the pump to create negative pressure according to the signal.

Description

INCORPORATION BY REFERENCE[0001]The present application is a continuation of U.S. patent application Ser. No. 16 / 241,019, filed on Jan. 7, 2019, which is a continuation of U.S. patent application Ser. No. 16 / 103,410, filed on Aug. 14, 2018 and issued as U.S. Pat. No. 10,390,926 on Aug. 27, 2019, which is a continuation of PCT Application No. PCT / US2017 / 017824, filed on Feb. 14, 2017, which claims priority benefit of U.S. Provisional Patent App. No. 62 / 295,662, filed on Feb. 16, 2016, and any and all applications related thereto by way of priority thereto or therefrom are hereby incorporated by reference in their entirety.BACKGROUNDField[0002]The present disclosure generally relates to devices, systems, methods for making, and methods for use in vascular procedures such as thrombectomy and / or flow diversion. Several embodiments relate to thrombectomy systems and methods for providing approaches for the treatment of stroke, peripheral vascular disease, coronary artery disease, sapheno...

AI Technical Summary

Benefits of technology

The device efficiently captures and removes thrombi with minimal vessel trauma, provides selective filtering, and allows for longitudinal crowding to prevent distal emboli, offering a low-profile, flexible solution for varied vessel anatomy.

Problems solved by technology

Vessels or other tissues in the body can become partially or fully clogged or blocked by a thrombus or thrombi.

Although some clot retrievers or thrombectomy devices that employ a laser cut hypotube on a distal end of a wire are commercially available, some embodiments disclosed herein do not use laser cut struts and are gentle on the vessel wall, while effectively and efficiently capturing a thrombus in any location in the body.

In such an embodiment, if the inner lumen diameter or cross sectional area of the guide catheter, the distal access microcatheter, and / or the second microcatheter is substantially uniform, then a change in suction pressure to achieve desired thrombus aspiration is negatively impacted by the length of the catheter.

In such embodiments, whenever the inner lumen diameter or cross sectional area is not substantially uniform (e.g., is tapered), then a change in suction pressure can result in a change in the square of the velocity of blood, which can result in desired thrombus aspiration.

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