EP0826435A3 - Ultraschallwandler für den diagnostischen und therapeutischen Einsatz - Google Patents

Ultraschallwandler für den diagnostischen und therapeutischen Einsatz Download PDF

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Publication number
EP0826435A3
EP0826435A3 EP97114389A EP97114389A EP0826435A3 EP 0826435 A3 EP0826435 A3 EP 0826435A3 EP 97114389 A EP97114389 A EP 97114389A EP 97114389 A EP97114389 A EP 97114389A EP 0826435 A3 EP0826435 A3 EP 0826435A3
Authority
EP
European Patent Office
Prior art keywords
ultrasonic transducer
diagnostic
transducer element
electrode
therapeutic application
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Withdrawn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
EP97114389A
Other languages
English (en)
French (fr)
Other versions
EP0826435A2 (de
Inventor
Todor Dipl.-Ing. Sheljaskov
Ulrich Dipl.-Ing. Schätzle
Reinhard Prof. Lerch
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.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0826435A2 publication Critical patent/EP0826435A2/de
Publication of EP0826435A3 publication Critical patent/EP0826435A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Ultraschallwandler, welcher im Diagnostik- oder Therapiebetrieb Ultraschallwellen unterschiedlicher Wellenlängen erzeugt, aufweisend eine n x λ/4-Anpassungsschicht (101 bis 10z) für ein an den Ultraschallwandler (81 bis 8z) angrenzendes Ausbreitungsmedium (9), und ein piezoelektrisches Ultraschallwandlerelement (111 bis 11z) mit einer zwischen der Anpassungsschicht (101 bis 10z) und dem Ultraschallwandlerelement (111 bis 11z) befindlichen ersten Elektrode (121 bis 12z), einer auf der gegenüberliegenden Seite des Ultraschallwandlerelementes (111 bis 11z) angebrachten zweiten Elektrode (131 bis 13z) und einer dritten Elektrode (141 bis 14z), welche das Ultraschallwandlerelement (111 bis 11z) in zwei Bereiche (151 bis 15z, 161 bis 16z) teilt, wobei in Abhängigkeit von der Unterteilung des Ultraschallwandlerelementes (111 bis 11z) Ultraschallwellen für den Diagnostik- und Therapiebetrieb erzeugbar sind und wobei die n x λ/4-Anpassungsschicht (101 bis 10z) sowohl für die Wellenlänge der Ultraschallwellen im Diagnostik- als auch im Therapiebetrieb wirksam ist.
EP97114389A 1996-09-02 1997-08-20 Ultraschallwandler für den diagnostischen und therapeutischen Einsatz Withdrawn EP0826435A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19635593 1996-09-02
DE19635593A DE19635593C1 (de) 1996-09-02 1996-09-02 Ultraschallwandler für den diagnostischen und therapeutischen Einsatz

Publications (2)

Publication Number Publication Date
EP0826435A2 EP0826435A2 (de) 1998-03-04
EP0826435A3 true EP0826435A3 (de) 2000-11-15

Family

ID=7804412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114389A Withdrawn EP0826435A3 (de) 1996-09-02 1997-08-20 Ultraschallwandler für den diagnostischen und therapeutischen Einsatz

Country Status (3)

Country Link
US (1) US5823962A (de)
EP (1) EP0826435A3 (de)
DE (1) DE19635593C1 (de)

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US5823962A (en) 1998-10-20
DE19635593C1 (de) 1998-04-23
EP0826435A2 (de) 1998-03-04

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