Implantable dynamic pressure transducer system
First Claim
Patent Images
1. An implantable dynamic pressure and motion transducer system for use in an implantable medical device comprising:
- a force responsive transducer for converting a physiological signal into a corresponding electrical signal;
buffer amplifier means, receiving said transducer electrical signal, and producing an amplified output signal;
clock means for generating energizing pulses coupled to said buffer amplifier and said transducer for periodically activating said buffer amplifier and transducer; and
signal recovery means responsive to said output signal for recovering a signal corresponding to said physiological signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Pressure and motion transducer, and cooperating circuitry for an implantable medical device is disclosed. The system includes a clock for the pulse excitation of a dynamic motion transducer and further includes circuitry for recovering the modulated signal from the transducer.
437 Citations
10 Claims
-
1. An implantable dynamic pressure and motion transducer system for use in an implantable medical device comprising:
-
a force responsive transducer for converting a physiological signal into a corresponding electrical signal; buffer amplifier means, receiving said transducer electrical signal, and producing an amplified output signal; clock means for generating energizing pulses coupled to said buffer amplifier and said transducer for periodically activating said buffer amplifier and transducer; and signal recovery means responsive to said output signal for recovering a signal corresponding to said physiological signal. - View Dependent Claims (2, 3, 4)
-
-
5. An implantable dynamic pressure and motion transducer for use with an implantable pacer system of the type having a pulse generator for generating an electric stimulus pulse on a pacing electrode comprising:
-
a force responsive transducer for converting a physiological force signal into a corresponding electrical signal; said transducer being incorporated in a transducer capsule incorporated in turn in a lead body for placement in cardiac tissue; buffer amplifier means adapted to receive said electrical signal, and producing an amplified output signal; said buffer amplifier means being incorporated in said transducer capsule; clock means for generating energizing pulses coupled to said buffer amplifier and said transducer for periodically activating said buffer amplifier and said transducer; signal recovery means responsive to said output signal for recovering a signal corresponding to said physiological signal. - View Dependent Claims (6, 7, 8, 9, 10)
-
Specification