GB509472A - An improved arrangement for determining the high frequency energy absorbed in a treatment subject while undergoing treatment with short or ultra-short wave electrical oscillations - Google Patents
An improved arrangement for determining the high frequency energy absorbed in a treatment subject while undergoing treatment with short or ultra-short wave electrical oscillationsInfo
- Publication number
- GB509472A GB509472A GB122438A GB122438A GB509472A GB 509472 A GB509472 A GB 509472A GB 122438 A GB122438 A GB 122438A GB 122438 A GB122438 A GB 122438A GB 509472 A GB509472 A GB 509472A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- substitute
- treatment
- short
- frequency energy
- 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
- A61N5/00—Radiation therapy
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (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)
- Measurement Of Resistance Or Impedance (AREA)
- Electrotherapy Devices (AREA)
Abstract
509,472. Power meters; resistance measurements. SIEMENS - REINIGER - WERKE AKT.-GES. Jan. 13, 1938, No. 1224. Convention date, Feb. 9, 1937. [Class 37] Short-wave or ultra-short-wave oscillation apparatus for measuring the high-frequency energy absorbed by a patient or treatment subject comprises a common generator with tuning equipment, together with a substitute circuit for the treatment circuit in which substitute circuit there is included an element representing the patient or treatment subject, and reactances which are adjustable to restore the damping of the substitute circuit to that obtained in the treatment circuit ; or the substitute element, for example a solid or liquid resistor, can have its position changed in the substitute circuit. The high-frequency energy converted in the substitute element is measured calorimetrically, thermometrically, or, as shown in the Figure, the energy is measured photoelectrically on an instrument 12 calibrated in watts. The treatment circuit 3, 5 and substitute circuit 4, 6 are connected to the generator through switch 2, the condensers 7 ... 9 varying the resonant conditions of the circuit which includes an incandescent lamp 10 as the substitute element. Instead of varying the condensers or inductances in the substitute circuit, the substitute element can be moved on rails forming the conductors 4, the altered position of the element in the circuit producing the desired current-voltage relationship.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES125992D DE726733C (en) | 1937-02-10 | 1937-02-10 | Method for determining the high-frequency energy converted in the treatment object during treatment with short-wave or ultra-short-wave electrical oscillations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB509472A true GB509472A (en) | 1939-07-13 |
Family
ID=25759292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB122438A Expired GB509472A (en) | 1937-02-10 | 1938-01-13 | An improved arrangement for determining the high frequency energy absorbed in a treatment subject while undergoing treatment with short or ultra-short wave electrical oscillations |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH202970A (en) |
| DE (1) | DE726733C (en) |
| FR (1) | FR831231A (en) |
| GB (1) | GB509472A (en) |
| NL (1) | NL49671C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2433513A (en) * | 1942-02-11 | 1947-12-30 | Jr Victor Guillemin | Controller and indicator for brief electric currents |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE919961C (en) * | 1951-08-28 | 1954-11-08 | Siemens Reiniger Werke Ag | Electromedical stimulation current therapy device |
-
0
- NL NL49671D patent/NL49671C/xx active
-
1937
- 1937-02-10 DE DES125992D patent/DE726733C/en not_active Expired
- 1937-12-20 CH CH202970D patent/CH202970A/en unknown
- 1937-12-24 FR FR831231D patent/FR831231A/en not_active Expired
-
1938
- 1938-01-13 GB GB122438A patent/GB509472A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2433513A (en) * | 1942-02-11 | 1947-12-30 | Jr Victor Guillemin | Controller and indicator for brief electric currents |
Also Published As
| Publication number | Publication date |
|---|---|
| DE726733C (en) | 1942-10-19 |
| FR831231A (en) | 1938-08-26 |
| NL49671C (en) | |
| CH202970A (en) | 1939-02-15 |
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