DE3121429A1 - Piezoelectric transducer - Google Patents

Piezoelectric transducer

Info

Publication number
DE3121429A1
DE3121429A1 DE19813121429 DE3121429A DE3121429A1 DE 3121429 A1 DE3121429 A1 DE 3121429A1 DE 19813121429 DE19813121429 DE 19813121429 DE 3121429 A DE3121429 A DE 3121429A DE 3121429 A1 DE3121429 A1 DE 3121429A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
piezoelectric transducer
approx
probe
rod
gt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19813121429
Other languages
German (de)
Inventor
Thomas Dipl Ing Janssen
Josef Dr Med Thoma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Physik Instrumente (PI) GmbH and Co KG
Original Assignee
Physik Instrumente (PI) GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00Methods or devices for treatment of the ears, e.g. surgical; Protective devices for the ears, carried on the body or in the hand; Non-electric hearing aids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/227Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for ears, i.e. otoscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezo-electric transducers; Electrostrictive transducers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00Devices for specific parts of the body
    • A61H2205/02Head
    • A61H2205/027Ears
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H23/00Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms
    • A61H23/02Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with electric or magnetic drive
    • A61H23/0245Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with electric or magnetic drive with ultrasonic transducers, e.g. piezo-electric

Abstract

The invention makes available a piezoelectric transducer which is distinguished in that it is constructed as a probe having a rod-shaped piezoceramic part which is provided in an elongated housing with the geometrical dimensions of an otological instrument for use under an operation microscope in operations to improve hearing. The changes in length of the rod-shaped piezoceramic part in physiological region corresponding to the physiological amplitude of vibration of the eardrum (approx. 10<-5> to approx. 10<-4> m) occur for an operating voltage of 1 mV to at most 1 kV. The invention also comprises the application of this piezoelectric transducer as a probe for coupling mechanical vibrational energy into the middle ear system in a punctiform fashion.
DE19813121429 1981-05-29 1981-05-29 Piezoelectric transducer Withdrawn DE3121429A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813121429 DE3121429A1 (en) 1981-05-29 1981-05-29 Piezoelectric transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813121429 DE3121429A1 (en) 1981-05-29 1981-05-29 Piezoelectric transducer

Publications (1)

Publication Number Publication Date
DE3121429A1 true true DE3121429A1 (en) 1983-02-03

Family

ID=6133527

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813121429 Withdrawn DE3121429A1 (en) 1981-05-29 1981-05-29 Piezoelectric transducer

Country Status (1)

Country Link
DE (1) DE3121429A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500154C1 (en) * 1995-01-04 1996-10-17 Fritz Giebler Gmbh Infusion tube for an infusion device with a bubble detector
EP0806884A1 (en) * 1996-05-10 1997-11-12 IMPLEX GmbH Spezialhörgeräte Apparatus for the electro-mechanical stimulation and for the examination of the ears
DE10041725A1 (en) * 2000-08-25 2002-03-21 Implex Hear Tech Ag Device for electromechanical stimulation and testing of hearing
EP1136038A3 (en) * 2000-03-22 2002-07-17 Phonak Ag Apparatus for the electromechanical stimulation and testing of hearing
CN104936119A (en) * 2015-04-28 2015-09-23 张景 Novel hearing compensation actuator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500154C1 (en) * 1995-01-04 1996-10-17 Fritz Giebler Gmbh Infusion tube for an infusion device with a bubble detector
US5811659A (en) * 1995-01-04 1998-09-22 Giebler; Fritz Infusion hose for an infusion device with a bubble detector
EP0806884A1 (en) * 1996-05-10 1997-11-12 IMPLEX GmbH Spezialhörgeräte Apparatus for the electro-mechanical stimulation and for the examination of the ears
DE19618961A1 (en) * 1996-05-10 1997-11-13 Implex Gmbh Device for electromechanical stimulation and testing of hearing
US5833626A (en) * 1996-05-10 1998-11-10 Implex Gmbh Spezialhorgerate Device for electromechanical stimulation and testing of hearing
DE19618961B4 (en) * 1996-05-10 2004-09-16 Phonak Ag Device for electromechanical stimulation and testing of hearing
EP1136038A3 (en) * 2000-03-22 2002-07-17 Phonak Ag Apparatus for the electromechanical stimulation and testing of hearing
DE10041725A1 (en) * 2000-08-25 2002-03-21 Implex Hear Tech Ag Device for electromechanical stimulation and testing of hearing
US6663575B2 (en) 2000-08-25 2003-12-16 Phonak Ag Device for electromechanical stimulation and testing of hearing
DE10041725B4 (en) * 2000-08-25 2004-04-29 Phonak Ag Device for electromechanical stimulation and testing of hearing
CN104936119A (en) * 2015-04-28 2015-09-23 张景 Novel hearing compensation actuator

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee