GB1454773A - - Google Patents
Info
- Publication number
- GB1454773A GB1454773A GB1434173A GB1434173A GB1454773A GB 1454773 A GB1454773 A GB 1454773A GB 1434173 A GB1434173 A GB 1434173A GB 1434173 A GB1434173 A GB 1434173A GB 1454773 A GB1454773 A GB 1454773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformer
- circuit
- feedback signal
- output current
- control
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/0066—Sensing and controlling the application of energy without feedback, i.e. open loop control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00702—Power or energy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00827—Current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1226—Generators therefor powered by a battery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1286—Generators therefor having a specific transformer
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Circuits Of Receivers In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1434173A GB1454773A (zh) | 1973-03-26 | 1973-03-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1434173A GB1454773A (zh) | 1973-03-26 | 1973-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1454773A true GB1454773A (zh) | 1976-11-03 |
Family
ID=10039447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1434173A Expired GB1454773A (zh) | 1973-03-26 | 1973-03-26 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1454773A (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0325456A2 (en) * | 1988-01-20 | 1989-07-26 | G2 Design Limited | Diathermy unit |
GB2502981A (en) * | 2012-06-12 | 2013-12-18 | Gyrus Medical Ltd | Electrosurgical instrument and system |
US9820805B2 (en) | 2012-06-12 | 2017-11-21 | Gyrus Medical Limited | Electrosurgical instrument and system |
-
1973
- 1973-03-26 GB GB1434173A patent/GB1454773A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0325456A2 (en) * | 1988-01-20 | 1989-07-26 | G2 Design Limited | Diathermy unit |
EP0325456B1 (en) * | 1988-01-20 | 1995-12-27 | G2 Design Limited | Diathermy unit |
GB2502981A (en) * | 2012-06-12 | 2013-12-18 | Gyrus Medical Ltd | Electrosurgical instrument and system |
US9820805B2 (en) | 2012-06-12 | 2017-11-21 | Gyrus Medical Limited | Electrosurgical instrument and system |
GB2502981B (en) * | 2012-06-12 | 2018-11-07 | Gyrus Medical Ltd | Electrosurgical instrument & system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |