US 12,653,555 B2 · Aspiration monitoring system and method

Abstract

A system for removal of blood or thrombus includes an aspiration catheter having an elongate shaft including an aspiration lumen having proximal end configured to couple to a vacuum source, and a distal end having an orifice, an elongate member configured for placement through the aspiration lumen and having a distal portion including a disruption element configured to disrupt thrombus within the aspiration lumen, and a monitoring device configured for removable connection in between the aspiration catheter and the vacuum source, and including a housing, a pressure sensor in fluid communication with an interior of the housing, a measurement device coupled to the pressure sensor and configured for measuring deviations in fluid pressure, and a communication device coupled to the measurement device and configured to generate an alert signal when a deviation in fluid pressure measured by the measurement device exceeds a pre-set threshold.

Claims24

Dependent claims

A method for removing thromboembolic material from

a blood vessel in a patient, the method comprising:
providing a catheter having a lumen, the lumen including a distal opening with a fixed inner diameter;
providing an elongate member configured to be extendable through the lumen of the catheter and having a separator disposed thereon;
inserting the catheter into a blood vessel and positioning the catheter adjacent a body of thromboembolic material;
applying negative pressure to the lumen for a first period of time to draw at least a portion of the body of thromboembolic material into the lumen;
during at least a portion of the first period of time, reciprocating the separator a plurality of times between a first position at least partially within the distal opening and a second position distal to the distal opening;
monitoring the negative pressure with a pressure transducer;
and
measuring one or more deviations in the negative pressure with a measurement device coupled to the pressure transducer.

6 more elements

Dependencies are inferred from the claim text.

Aspiration monitoring system and method

Life of this patent

Aspiration monitoring system and method

Life of this patent

Abstract

Claims24