WO1998005437B1 - Circuit generateur d'ultrasons renfermant un oscillateur de puissance et une chaine de contre-reaction - Google Patents
Circuit generateur d'ultrasons renfermant un oscillateur de puissance et une chaine de contre-reactionInfo
- Publication number
- WO1998005437B1 WO1998005437B1 PCT/GB1997/002052 GB9702052W WO9805437B1 WO 1998005437 B1 WO1998005437 B1 WO 1998005437B1 GB 9702052 W GB9702052 W GB 9702052W WO 9805437 B1 WO9805437 B1 WO 9805437B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ultrasonic generator
- feedback
- generator circuit
- circuit
- voltage
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims 9
- 238000004804 winding Methods 0.000 claims 5
- 238000007599 discharging Methods 0.000 claims 3
- 230000001939 inductive effect Effects 0.000 claims 3
- 230000001012 protector Effects 0.000 claims 3
- 239000007858 starting material Substances 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000005070 sampling Methods 0.000 claims 1
Abstract
L'invention a trait à un circuit de générateur d'ultrasons comprenant un circuit LC (inductance-capacité) résonant à oscillateur de puissance destiné à commander un transducteur d'ultrasons. Le circuit résonant comporte un élément de commutation commandé en tension (un transistor bipolaire à grille intégrée est préféré). La contre-réaction est assurée via un transformateur à contre-réaction dont le primaire est connecté au circuit résonant et le secondaire à un convertisseur de signal de contre-réaction qui, en fonction du courant de contre-réaction induit dans le secondaire du transformateur de contre-réaction, a appliqué une tension de contre-réaction à l'entrée de l'élément de commutation commandé en tension.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9901400A GB2333193B (en) | 1996-08-01 | 1997-08-01 | Ultrasonic generator circuit incorporating a power oscillator and a feedback loop |
AU37032/97A AU3703297A (en) | 1996-08-01 | 1997-08-01 | Ultrasonic generator circuit incorporating a power oscillator and a feedback loop |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9616186.4 | 1996-08-01 | ||
GBGB9616186.4A GB9616186D0 (en) | 1996-08-01 | 1996-08-01 | Untrasonic generator |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998005437A1 WO1998005437A1 (fr) | 1998-02-12 |
WO1998005437B1 true WO1998005437B1 (fr) | 1998-03-19 |
Family
ID=10797860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1997/002052 WO1998005437A1 (fr) | 1996-08-01 | 1997-08-01 | Circuit generateur d'ultrasons renfermant un oscillateur de puissance et une chaine de contre-reaction |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3703297A (fr) |
GB (1) | GB9616186D0 (fr) |
WO (1) | WO1998005437A1 (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0222421D0 (en) * | 2002-09-27 | 2002-11-06 | Ratcliff Henry K | Advanced ultrasonic processor |
US8182501B2 (en) | 2004-02-27 | 2012-05-22 | Ethicon Endo-Surgery, Inc. | Ultrasonic surgical shears and method for sealing a blood vessel using same |
US20060079879A1 (en) | 2004-10-08 | 2006-04-13 | Faller Craig N | Actuation mechanism for use with an ultrasonic surgical instrument |
US20070191713A1 (en) | 2005-10-14 | 2007-08-16 | Eichmann Stephen E | Ultrasonic device for cutting and coagulating |
US7621930B2 (en) | 2006-01-20 | 2009-11-24 | Ethicon Endo-Surgery, Inc. | Ultrasound medical instrument having a medical ultrasonic blade |
US8057498B2 (en) | 2007-11-30 | 2011-11-15 | Ethicon Endo-Surgery, Inc. | Ultrasonic surgical instrument blades |
US8808319B2 (en) | 2007-07-27 | 2014-08-19 | Ethicon Endo-Surgery, Inc. | Surgical instruments |
US8523889B2 (en) | 2007-07-27 | 2013-09-03 | Ethicon Endo-Surgery, Inc. | Ultrasonic end effectors with increased active length |
US8430898B2 (en) | 2007-07-31 | 2013-04-30 | Ethicon Endo-Surgery, Inc. | Ultrasonic surgical instruments |
US8512365B2 (en) | 2007-07-31 | 2013-08-20 | Ethicon Endo-Surgery, Inc. | Surgical instruments |
US9044261B2 (en) | 2007-07-31 | 2015-06-02 | Ethicon Endo-Surgery, Inc. | Temperature controlled ultrasonic surgical instruments |
US10010339B2 (en) | 2007-11-30 | 2018-07-03 | Ethicon Llc | Ultrasonic surgical blades |
US8334635B2 (en) | 2009-06-24 | 2012-12-18 | Ethicon Endo-Surgery, Inc. | Transducer arrangements for ultrasonic surgical instruments |
US8951272B2 (en) | 2010-02-11 | 2015-02-10 | Ethicon Endo-Surgery, Inc. | Seal arrangements for ultrasonically powered surgical instruments |
US9820768B2 (en) | 2012-06-29 | 2017-11-21 | Ethicon Llc | Ultrasonic surgical instruments with control mechanisms |
US10226273B2 (en) | 2013-03-14 | 2019-03-12 | Ethicon Llc | Mechanical fasteners for use with surgical energy devices |
GB2521229A (en) * | 2013-12-16 | 2015-06-17 | Ethicon Endo Surgery Inc | Medical device |
US11020140B2 (en) | 2015-06-17 | 2021-06-01 | Cilag Gmbh International | Ultrasonic surgical blade for use with ultrasonic surgical instruments |
US10357303B2 (en) | 2015-06-30 | 2019-07-23 | Ethicon Llc | Translatable outer tube for sealing using shielded lap chole dissector |
US10245064B2 (en) | 2016-07-12 | 2019-04-02 | Ethicon Llc | Ultrasonic surgical instrument with piezoelectric central lumen transducer |
USD847990S1 (en) | 2016-08-16 | 2019-05-07 | Ethicon Llc | Surgical instrument |
US11350959B2 (en) | 2016-08-25 | 2022-06-07 | Cilag Gmbh International | Ultrasonic transducer techniques for ultrasonic surgical instrument |
US10952759B2 (en) | 2016-08-25 | 2021-03-23 | Ethicon Llc | Tissue loading of a surgical instrument |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1095436A (fr) * | ||||
US3727112A (en) * | 1969-08-29 | 1973-04-10 | Surgical Design Corp | Generator for producing ultrasonic energy |
GB8333696D0 (en) * | 1983-12-17 | 1984-01-25 | Glasshome Ltd | Transistor amplifier |
-
1996
- 1996-08-01 GB GBGB9616186.4A patent/GB9616186D0/en active Pending
-
1997
- 1997-08-01 AU AU37032/97A patent/AU3703297A/en not_active Abandoned
- 1997-08-01 WO PCT/GB1997/002052 patent/WO1998005437A1/fr active Application Filing
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