DE3467981D1 - Circuitry for exciting a piezoelectric oscillator in an ultrasound therapy device - Google Patents
Circuitry for exciting a piezoelectric oscillator in an ultrasound therapy deviceInfo
- Publication number
- DE3467981D1 DE3467981D1 DE8484111125T DE3467981T DE3467981D1 DE 3467981 D1 DE3467981 D1 DE 3467981D1 DE 8484111125 T DE8484111125 T DE 8484111125T DE 3467981 T DE3467981 T DE 3467981T DE 3467981 D1 DE3467981 D1 DE 3467981D1
- Authority
- DE
- Germany
- Prior art keywords
- voltage source
- terminal
- vibrator
- oscillator
- resonance frequency
- 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.)
- Expired
Links
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
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
- B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
- B06B1/0253—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken directly from the generator circuit
-
- 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
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
-
- 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
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
- B06B2201/76—Medical, dental
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Percussion Or Vibration Massage (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8484111125T DE3467981D1 (en) | 1983-09-28 | 1984-09-18 | Circuitry for exciting a piezoelectric oscillator in an ultrasound therapy device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833335158 DE3335158A1 (de) | 1983-09-28 | 1983-09-28 | Schaltung zur anregung eines ultraschall-therapiekopfes |
DE8484111125T DE3467981D1 (en) | 1983-09-28 | 1984-09-18 | Circuitry for exciting a piezoelectric oscillator in an ultrasound therapy device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3467981D1 true DE3467981D1 (en) | 1988-01-21 |
Family
ID=6210318
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833335158 Withdrawn DE3335158A1 (de) | 1983-09-28 | 1983-09-28 | Schaltung zur anregung eines ultraschall-therapiekopfes |
DE8484111125T Expired DE3467981D1 (en) | 1983-09-28 | 1984-09-18 | Circuitry for exciting a piezoelectric oscillator in an ultrasound therapy device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833335158 Withdrawn DE3335158A1 (de) | 1983-09-28 | 1983-09-28 | Schaltung zur anregung eines ultraschall-therapiekopfes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0135907B1 (de) |
AT (1) | ATE31257T1 (de) |
DE (2) | DE3335158A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5001649A (en) * | 1987-04-06 | 1991-03-19 | Alcon Laboratories, Inc. | Linear power control for ultrasonic probe with tuned reactance |
DE3934921C1 (en) * | 1989-10-20 | 1991-04-25 | Kln Ultraschall Gmbh, 6148 Heppenheim, De | Switching circuitry for reactive loads such as coils, and oscillators - has diode in antiparallel with each diode in series with semiconductor switch |
WO2011125544A1 (ja) * | 2010-04-09 | 2011-10-13 | オリンパスメディカルシステムズ株式会社 | 超音波手術システム及び外科用処置具 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3584244A (en) * | 1969-06-10 | 1971-06-08 | Clevite Corp | Oscillator circuit for an ultrasonic cleaner, utilizing a saturable core transformer |
US4012647A (en) * | 1974-01-31 | 1977-03-15 | Ultrasonic Systems, Inc. | Ultrasonic motors and converters |
US4311922A (en) * | 1979-11-14 | 1982-01-19 | General Electric Company | Variable excitation circuit |
-
1983
- 1983-09-28 DE DE19833335158 patent/DE3335158A1/de not_active Withdrawn
-
1984
- 1984-09-18 AT AT84111125T patent/ATE31257T1/de not_active IP Right Cessation
- 1984-09-18 EP EP84111125A patent/EP0135907B1/de not_active Expired
- 1984-09-18 DE DE8484111125T patent/DE3467981D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0135907B1 (de) | 1987-12-09 |
DE3335158A1 (de) | 1985-04-04 |
ATE31257T1 (de) | 1987-12-15 |
EP0135907A2 (de) | 1985-04-03 |
EP0135907A3 (de) | 1985-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |