Stent graft monitoring assembly and method of use thereof
AssigneeCanary Medical Inc.
InventorWilliam L. Hunter
Life of this patent
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Abstract
Assemblies are provided for positioning within a lumen comprising a stent graft; and a sensor positioned on the stent graft. Within certain aspects the sensors are wireless sensors, and include for example one or more fluid pressure sensors, contact sensors, position sensors, pulse pressure sensors, blood volume sensors, blood flow sensors, chemistry sensors (e.g., for blood and/or other fluids), metabolic sensors (e.g., for blood and/or other fluids), mechanical stress sensors and/or temperature sensors.
Claims20
A method for monitoring an endovascular stent graft that is located within an aneurysm sac of a patient, where the stent graft comprises at least one passive wireless pressure sensor, the method comprising:
- a. transmitting a wireless electrical signal from an interrogation module, the interrogation module in wired communication with a power source located within the patient's body but not in physical contact with the sensor, where the interrogation module is located in the patient's body and is connected to an antennae that transmits the wireless electrical signal;
- b. receiving the transmitted signal of part a) by a passive wireless pressure sensor positioned on the stent graft located inside an aneurysm sac of the patient, where the passive wireless pressure sensor comprises an antennae that receives the wireless electrical signal;
- c. powering the passive wireless pressure sensor with the received signal of part b);
- d. sensing pressure data by the passive wireless pressure sensor;
- and
- e. outputting the sensed pressure data of part d) from the passive wireless pressure sensor through an antennae and then via a wireless signal to the interrogation module.
Dependencies are inferred from the claim text.