GB670239A - Improvements in roentgen apparatus - Google Patents
Improvements in roentgen apparatusInfo
- Publication number
- GB670239A GB670239A GB12942/48A GB1294248A GB670239A GB 670239 A GB670239 A GB 670239A GB 12942/48 A GB12942/48 A GB 12942/48A GB 1294248 A GB1294248 A GB 1294248A GB 670239 A GB670239 A GB 670239A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platform
- patient
- counterweight
- raised
- lever
- 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
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000007689 inspection Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000004075 alteration Effects 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000002685 pulmonary effect Effects 0.000 abstract 1
- 238000002601 radiography Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/10—Safety means specially adapted therefor
- A61B6/102—Protection against mechanical damage, e.g. anti-collision devices
- A61B6/105—Braking or locking devices
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
670,239. X-ray apparatus. SCHONANDER AKTIEBOLAG, G. May 11, 1948 [May 12, 1947], No. 12942/48. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 13, 1948.] Class 98 (i). A patient-platform mechanism for radiography, particularly for pulmonary photofluorography, comprises a platform for adjusting the position of the patient, the platform, when loaded by, for instance, a patient, being movable downwards against the force of a yielding upwardly-acting counter-load, such as a counterweight or spring, the platform being controlled by a preferably regulatable speedlimiting member, and being provided with means for arresting the platform at the desired level. As shown, the apparatus is of the kind having a base-plate 1 carrying an X-ray tube 2 on a stand 3 and the lower piece 11 of the stationary front part of a patient box, the upper piece 12 of which carries a fluorescent screen 4, and the framework 5 carrying the photographic camera unit 6. The platform 1 is detachably supported by lugs 24 on columns 22 slidable on guides 28 and connected at their upper ends by a bar 23. Cables 29 attached to the columns pass over pulleys 30 and are connected to a counterweight 31, which normally tends to raise the platform and its supporting frame, but is raised when a patient stands on the platform. A rod 32 fixed to bar 23 carries a piston moving in a cylinder 33 containing a liquid or a gas which is forced out through an outlet valve operated by a lever 34 when the platform moves down. Preferably, lever 34 is actuated by a sleeved cable 36 and a handle 35. The liquid passes through the outlet valve to a container preferably above the cylinder, and preferably returns by an inlet valve of greater capacity. Another form of platform mechanism is described in which the platform has guides slidable on vertical members, and a cable attached to the platform passes over a driving pulley, and then over idler pulleys to support a counterweight. The driving pulley is geared to a drum against which a brake block is pressed by a spring-urged lever, and a shaft carrying brake blocks urged by centrifugal force against the inside of a fixed drum. When the patient is on the platform the lever is raised to allow the platform to descend at a speed limited by the action of the rotatable brake blocks on the drum. The driving pulley may be automatically disengaged when the patient steps off the platform, which is then raised by the counterweight. The speed limiting device may be regulated by adjusting a spring between the brake blocks, or may consist of paddles rotating in a closed liquidfilled chamber. The platform may be raised as by a hydraulic lifting device. The Specification as open to inspection under Sect. 91, includes the subject-matter of Specifications 670,240 and 670,289, and also states that the platform may include a balance for weighing the patient, the reading thereof controlling by transmission means a pointer of a scale which may indicate directly the exposure time required, this time being taken as proportional to the weight of the patient. Alternatively, the transmission means may effect voltage control of the X-ray tube. The balance is preferably operated when the platform has reached its final position. An optical system for correcting spherical aberration, comprising curved reflecting surfaces with their axes at right angles, is described. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI670239X | 1947-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB670239A true GB670239A (en) | 1952-04-16 |
Family
ID=8556205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12942/48A Expired GB670239A (en) | 1947-05-12 | 1948-05-11 | Improvements in roentgen apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB670239A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0200136A1 (en) * | 1985-05-02 | 1986-11-05 | Siemens Aktiengesellschaft | Ceiling mount for an X-ray apparatus |
CN108560956A (en) * | 2018-04-24 | 2018-09-21 | 北京医帮管家网络科技有限公司 | A kind of hospital's preoperative and postoperative portrait data collecting instrument |
-
1948
- 1948-05-11 GB GB12942/48A patent/GB670239A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0200136A1 (en) * | 1985-05-02 | 1986-11-05 | Siemens Aktiengesellschaft | Ceiling mount for an X-ray apparatus |
US4747119A (en) * | 1985-05-02 | 1988-05-24 | Siemens Aktiengesellschaft | Ceiling mount for an X-ray radiator |
CN108560956A (en) * | 2018-04-24 | 2018-09-21 | 北京医帮管家网络科技有限公司 | A kind of hospital's preoperative and postoperative portrait data collecting instrument |
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