GB482720A - Installation for the generation of electric currents for medical purposes - Google Patents
Installation for the generation of electric currents for medical purposesInfo
- Publication number
- GB482720A GB482720A GB26788/36A GB2678836A GB482720A GB 482720 A GB482720 A GB 482720A GB 26788/36 A GB26788/36 A GB 26788/36A GB 2678836 A GB2678836 A GB 2678836A GB 482720 A GB482720 A GB 482720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- tube
- impulses
- oct
- condenser
- 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
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
482,720. Valve generating circuits. SCHULMEISTER, L. Oct. 2, 1936, Nos. 26788 and 26789. Convention dates, Oct. 2, 1935 and Sept. 29, 1936. [Class 40 (v)] [Also in Group VI] An electro-medical apparatus comprises a relaxation oscillator with a hot-cathode gas discharge tube for charging or discharging the condenser, and with means for supplying the resulting current impulses to treatment electrodes. As shown in Fig. 1, the condenser 1 is charged through a variable frequency-regulating resistance 3 and is discharged through a diode tube 2, the discharge impulses being conveyed to treatment electrodes 6, 7 through an ironless transformer 4, 5 and an adjustable resistance 8, the arm of which may be rotated. The positions of the resistance 3 and the tube 2 may be reversed, and the impulses taken off through condensers, Fig. 2 (not shown). The discharge tube may have one or more grids, and in the circuit shown in Fig. 4, one grid 24 is biassed by connection to a resistance 25 in the charging circuit, the other grid being given a fixed bias.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT482720X | 1935-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB482720A true GB482720A (en) | 1938-04-04 |
Family
ID=3674969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26788/36A Expired GB482720A (en) | 1935-10-02 | 1936-10-02 | Installation for the generation of electric currents for medical purposes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB482720A (en) |
-
1936
- 1936-10-02 GB GB26788/36A patent/GB482720A/en not_active Expired
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