Patent ID: 11931502
Assignee: CONTEGO MEDICAL, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. An aspiration system for controlling blood loss during thrombus removal, the aspiration system comprising:
an aspiration catheter;
an aspiration tubing fluidically coupled to the aspiration catheter;
an aspiration lumen extending through the aspiration catheter and the aspiration tubing;
a sensor configured to measure a blood flow parameter associated with blood within the aspiration lumen;
a receptacle fluidically coupled to the aspiration tubing and configured to collect blood aspirated by the aspiration catheter;
a vacuum line fluidically coupled to the receptacle and configured to transfer a vacuum pressure from a vacuum pump to the receptacle;
a regulator coupled to the vacuum line, the regulator comprising a valve that is configured to open the vacuum line to the atmosphere in order to adjust the vacuum pressure within the vacuum line and within the receptacle; and
a vacuum controller operably coupled to the sensor and the regulator and configured to communicate with the regulator to adjust the vacuum pressure within the vacuum line, the vacuum controller configured to:
receive the blood flow parameter from the sensor;
compare the blood flow parameter to a target range for the blood flow parameter; and
send an automatic control signal to the regulator based on a comparison of the blood flow parameter to the target range;

wherein the automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line and within the receptacle by manipulating the valve that opens the vacuum line to the atmosphere.