Acoustic biosensor for monitoring physiological conditions in a body implantation site
AssigneeRemon Medical Technologies, Ltd.
InventorsEyal Doron, Avi Penner
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Abstract
An acoustic biosensor is provided for deployment at an implantation site within a body, such as an abdominal aortic aneurysm. The biosensor includes a sensor element for measuring a physiological condition at the implantation site, and for generating an information signal representative of the physiological condition. The biosensor further includes a piezoelectric transducer element for converting an externally originated acoustic interrogation signal into energy for operating the sensor, and for modulating the interrogation signal, e.g., by employing a switching element to alternate the mechanical impedance of the transducer element, to transmit the information signal outside of the body.
Claims6
A method for monitoring a physiological condition at an aneurysmal sac using an acoustic biosensor, the biosensor comprising:
- a sensing element for measuring a physiological condition at the aneurysmal sac and for generating an information signal representative of the physiological condition;
- and
- a transducer element for converting an acoustic interrogation signal into energy for operating the sensor and for modulating the interrogation signal to transmit the information signal, the method comprising:
- implanting the biosensor into the aneurysmal sac;
- providing an acoustic interrogation wave for impinging on the transducer element of the biosensor and thereby providing power to the sensing element, the acoustic wave having a reflected portion;
- and
- modulating the reflected portion of the interrogation wave based on the information signal.
A method for monitoring a physiological condition at an aneurysmal sac using an acoustic biosensor, the biosensor comprising:
- a sensing element for measuring a physiological condition at the aneurysmal sac and for generating an information signal representative of the physiological condition;
- and
- a transducer element for modulating the interrogation signal to transmit the information signal, the method comprising:
- implanting the biosensor into the aneurysmal sac;
- providing an acoustic interrogation wave for impinging on the transducer element of the biosensor, the acoustic wave having a reflected portion;
- and
- modulating the reflected portion of the interrogation wave based on the information signal.
Dependencies are inferred from the claim text.