Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1993-07-14
1995-06-20
Howell, Kyle L.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
607 2, 607 17, 128782, 73517R, 73517AV, A61N 1365
Patent
active
054257506
ABSTRACT:
An accelerometer-based, multi-axis physical activity sensor for use with a rate-responsive pacemaker, and a method for fabricating the sensor, are provided. The multi-axis physical activity sensor includes a cantilever beam having a film of a piezoelectric polymer adhered to each surface of an electrically conductive substrate. The piezoelectric films are highly resistant to fracturing during manufacture and in use, and they provide a strong output signal when stressed in response to bodily accelerations. A mass is mounted to a free end of the cantilever beam, and is substantially offset with respect to a planar surface of the beam so as to impart multi-axis sensitivity to the physical activity sensor. The accelerometer-based, multi-axis physical activity sensor provides an output signal that is communicated to pacemaker circuitry using a pair of electrical conductors.
REFERENCES:
patent: 4140132 (1979-02-01), Dahl
patent: 4305396 (1981-12-01), Wittkampf et al.
patent: 4428378 (1984-01-01), Anderson et al.
patent: 4686988 (1987-08-01), Sholder
patent: 4712555 (1987-12-01), Thornander et al.
patent: 4771780 (1988-09-01), Sholder
patent: 4791931 (1988-12-01), Slate
patent: 4860751 (1989-08-01), Callaghan
patent: 4868447 (1989-09-01), Lee et al.
patent: 4896068 (1990-01-01), Nilsson
patent: 4920801 (1990-05-01), Church
patent: 4922930 (1990-05-01), Adkins et al.
patent: 4969359 (1990-11-01), Mikkor
patent: 5014700 (1991-05-01), Alt
patent: 5023503 (1991-06-01), Legge et al.
patent: 5031615 (1991-07-01), Alt
patent: 5040534 (1991-08-01), Mann et al.
patent: 5040535 (1991-08-01), Mann et al.
patent: 5044366 (1991-09-01), Alt
patent: 5233984 (1993-08-01), Thompson
patent: 5318596 (1994-06-01), Barreras et al.
patent: 5330510 (1994-07-01), Legay et al.
Atochem Sensors, Inc. Product Brochure, Standard and Custom Piezo Film Components, pp. 1-10 (1991).
Bacharach, David W. et al., "Activity-Base Pacing: Comparison of a Device Using an Accelerometer Versus a Piezoelectric Crystal," PACE, vol. 15, pp. 188-196 (Feb. 1992).
Piezo Electric Products, Inc., "Piezoceramic Design Notes," SENSORS (Mar. 1984).
Salerno, David M. et al., "Seismocardiography: A New Technique for Recording Cardiac Vibrations. Concept, Method, and Initial Observations," Journal of Cardiovascular Technology, vol. 9, No. 2, 1990, pp. 111-118.
Salerno, David M. et al., "Seismocardiography for Monitoring Changes in Left Ventricular Function During Ischemia," Chest, vol. 100, pp. 991-993 (Oct. 1991).
Salerno, David M. et al., "Seismocardiographic Changes Associated With Obstruction of Coronary Blood Flow During Balloon Angioplasty," The American Journal of Cardiology, vol. 68, pp. 201-207 (Jul. 15, 1991).
Sandler, H. et al., "Miniature Implantable Accelerometers," pp. 165-174.
Howell Kyle L.
Pacesetter Inc.
Romano Malcolm J.
Schaetzle Kennedy J.
Weinberg Lisa P.
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