Sensors for catheter pumps
AssigneeTc1 LLC
InventorsPaul F. Muller, Keif M. Fitzgerald, Richard L. Keenan, Veronica J. Neiman
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Abstract
Sensors for catheter pumps are disclosed herein. The catheter pump can include a catheter assembly comprising a catheter and a cannula coupled to a distal portion of the catheter. The cannula can have a proximal port for permitting the flow of blood therethrough. The catheter assembly can include a sensor to be disposed near the proximal port. A processing unit can be programmed to process a signal detected by the sensor. The processing unit can comprise a computer-readable set of rules to evaluate the signal to determine a position of the cannula relative to an aortic valve of a patient.
Claims22
A catheter pump comprising:
- a catheter body percutaneously insertable into a vasculature of a patient;
- a cannula and impeller coupled to the catheter body and deliverable with the catheter body to a target location in the patient's body to perform a treatment procedure;
- a sensor assembly comprising at least one sensor element positioned along a distal portion of the catheter body at a position proximally adjacent the impeller;
- and
- a sheath disposed about the catheter body;
- wherein the sensor assembly is selectively positionable relative to the sheath in a first position wherein the at least one sensor element is isolated from blood and anatomy in the vasculature and a second position wherein the at least one sensor element is exposed to blood in the vasculature for measuring a pressure of the blood at the target location.
Dependencies are inferred from the claim text.