GB407279A - Improvements in apparatus for recording conditions of the vascular system - Google Patents
Improvements in apparatus for recording conditions of the vascular systemInfo
- Publication number
- GB407279A GB407279A GB2942933A GB2942933A GB407279A GB 407279 A GB407279 A GB 407279A GB 2942933 A GB2942933 A GB 2942933A GB 2942933 A GB2942933 A GB 2942933A GB 407279 A GB407279 A GB 407279A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- diaphragm
- systems
- sphygmograph
- class
- 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
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0235—Valves specially adapted therefor
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
407,279. Pressure gauges. SHORT & MASON, Ltd., Aneroid Works, Walthamstow, London.-(Taylor Instruments Cos.; Rochester, New York, U.S.A.) Oct. 24, 1933, No. 29429. [Class 106 (ii).] A sphygmograph or like pressure-recording instrument comprises two pressure systems of unequal volume separated by a diaphragm which operates the recording device, and means for releasing pressure at the same rate from both systems. The illustrated sphygmograph comprises two rubber bags 1, 2 of the usual type for application to the arm, communicating with opposite sides of a diaphragm 9 which operates the recording pen 11. The bag 1 is connected to reservoir 3 which is fitted with a diaphragm 5 which rotates the chart 8 as the pressure falls. The apparatus is charged with compressed air by means of the hand bulb 21. The rotary valve 12<b> is then turned to the position shown in Fig. 2 and the pressure is released through the adjustable leak 4. The constrictions 16<a>, 17<a> are so proportioned that the pressure falls at the same rate in both systems. Specification 222,161, [Class 106 (ii)], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2942933A GB407279A (en) | 1933-10-24 | 1933-10-24 | Improvements in apparatus for recording conditions of the vascular system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2942933A GB407279A (en) | 1933-10-24 | 1933-10-24 | Improvements in apparatus for recording conditions of the vascular system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB407279A true GB407279A (en) | 1934-03-15 |
Family
ID=10291422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2942933A Expired GB407279A (en) | 1933-10-24 | 1933-10-24 | Improvements in apparatus for recording conditions of the vascular system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB407279A (en) |
-
1933
- 1933-10-24 GB GB2942933A patent/GB407279A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1293712A (en) | Pressure transducer | |
| CH262826A (en) | Deformable diaphragm differential pressure indicator device. | |
| GB407279A (en) | Improvements in apparatus for recording conditions of the vascular system | |
| GB894321A (en) | Improvements in and relating to marking apparatus | |
| US1043521A (en) | Blood-pressure-determining device. | |
| GB2001444A (en) | Measuring permeability of paper | |
| GB1074399A (en) | Liquid level indicators | |
| GB560019A (en) | Indicating instruments for aircraft | |
| GB1262954A (en) | Improvements in or relating to sphygmomanometers | |
| GB1285269A (en) | Pressure indicator | |
| GB660122A (en) | Improvements in or relating to fluid pressure indicators | |
| GB322530A (en) | An improved sphygmometer or instrument for measuring blood pressure and fluctuations thereof | |
| GB448939A (en) | Improvements in and relating to pressure recording devices | |
| SU107931A1 (en) | Eye Tonodosimeter | |
| GB721388A (en) | Improvements in mercury manometers, particularly sphygmomanometers | |
| GB514144A (en) | Apparatus for the measurement of pressures in fluids | |
| GB810955A (en) | Differential pressure responsive bellows device | |
| GB436510A (en) | Nose pads for eyeglasses | |
| GB826687A (en) | Improvements in mean position indicators | |
| GB415528A (en) | Improvements in or relating to fluid pressure gauges | |
| GB554722A (en) | Improvements in or relating to differential pressure gauges | |
| GB470714A (en) | A new or improved goniometer | |
| GB848172A (en) | Improvements in or relating to pressure measuring devices | |
| GB175948A (en) | Improvements in or relating to instruments for measuring the fluid pressure within vessels or chambers having flexible walls | |
| GB445061A (en) | Improvements relating to the inflation of pneumatic tyres |