MEDICAL INSTRUMENT WITH A PIEZOELECTRIC SENSOR STACK, AND METHOD FOR PRODUCING SAME

Abstract: a medical instrument has a distal end for insertion into a patient and a sensor unit at the distal end that is configured to capture and convert a measured physical variable into an electrical measurement signal. the sensor unit is a sensor stack constructed in layers and having a first portion and a second portion. the first and second portions each have functional layers arranged one above another. the functional layers are applied to one another in layers and cover one another at least in portions. the first portion includes a first insulation layer, a first electrode, a piezoactive piezo layer, a second electrode layer, a second insulation layer, and a shielding layer. the second portion includes an insulation layer, a first conductor track, and a second conductor track. the sensor unit and the medical instrument are produced by a method.

Inventor(s): Nikolaus Berger-Roscher, Daniel Baasner, Eike Kottkamp, Walter Wirths

CPC Classification: B06B1/0688 (METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. , , ; measurement of mechanical vibrations ; in direction finding, locating, distance or velocity measuring ; {generating seismic energy }; control of mechanical vibrations in general ; sound-producing devices, e.g. bells, sirens, whistles , {e.g. methods or devices for transmitting, conducting, or directing sound in general }; generation of electrical oscillations ; electromechanical resonators in general ; electromechanical transducers {for communication techniques, e.g. microphones, speakers} ))

Search for rejections for patent application number 20250196188