GB1375294A – – Google Patents
GB1375294A – – Google Patents
Info
Publication number
GB1375294A
GB1375294A
GB1226672A
GB1226672A
GB1375294A
GB 1375294 A
GB1375294 A
GB 1375294A
GB 1226672 A
GB1226672 A
GB 1226672A
GB 1226672 A
GB1226672 A
GB 1226672A
GB 1375294 A
GB1375294 A
GB 1375294A
Authority
GB
United Kingdom
Prior art keywords
tube
throat
air
cuff
bulb
Prior art date
1971-05-04
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
Application number
GB1226672A
Priority date (The priority date 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 date listed.)
1971-05-04
Filing date
1972-03-16
Publication date
1974-11-27
1972-03-16
Application filed
filed
Critical
1974-11-27
Publication of GB1375294A
publication
Critical
patent/GB1375294A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
A61B5/0235—Valves specially adapted therefor
Abstract
1375294 Sphygmomanometers N PANZER 16 March 1972 [4 May 1971] 12266/72 Heading A5K A sphygmomanometer comprises an inflatable cuff 12, an air line 20 leading to the inflatable cuff, a pressure gauge 18 communicating with the cuff via an air line 16, a bulb 24 having a bleed valve 22, a tube 26 secured between the bulb and an air line 20 and provided with a channel 28 which has a constructed throat 30, and a secondary tube 32 providing communication between the throat 30 and the surrounding atmosphere. In use when air is propelled from the bulb through the channel to inflate the cuff, the acceleration and consequent pressure drop caused by the throat, e.g. a venturi throat, causes entrainment of additional air from outside the tube 26 through. the tube 32 so that inflation of the cuff requires fewer compressions of the bulb. The secondary tube may be provided with bores 34 which can be closed by a slidably mounted sleeve valve 38. The angle of convergence of the channel in a section 60 is greater than that in a section 62, and the inside diameter at the ends of the tube is at least equal to that of the air line. Typical values are for the angles of convergence to be respectively 25-30 and 5-8, for the inside diameter of the ends of the throat to be 3mm, and for this diameter to be 3-4 times that of the throat. This results in entrainment of approximately three times as much air through the tube 32 as is propelled through the throat by the bulb. When the bleed vavle 22 is opened to allow air to pass from the inflatable cuff, air is entrained through the tube 32 so that air loss from the cuff is slowed down and a more accurate reading obtained from the gauge. The material of the tube 28 may be either plastics or aluminium.
GB1226672A
1971-05-04
1972-03-16
Expired
GB1375294A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US14016371A
1971-05-04
1971-05-04
Publications (1)
Publication Number
Publication Date
GB1375294A
true
GB1375294A
(en)
1974-11-27
Family
ID=22490013
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1226672A
Expired
GB1375294A
(en)
1971-05-04
1972-03-16
Country Status (4)
Country
Link
US
(1)
US3670720A
(en)
CA
(1)
CA950702A
(en)
GB
(1)
GB1375294A
(en)
IT
(1)
IT952807B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2191545A
(en)
*
1986-05-23
1987-12-16
Halkey Roberts Corp
Improvements in or relating to inflators
US20130310227A1
(en)
*
2012-05-18
2013-11-21
Sean Wheeler
Foot strengthening device and method
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4676239A
(en)
*
1980-09-20
1987-06-30
David Humphrey
Anesthetic system
EP0595963A4
(en)
*
1991-07-19
1995-07-05
Ticca Pty Ltd
Medical demonstration apparatus.
US5722413A
(en)
*
1991-07-19
1998-03-03
Cortech Development Pty Ltd
Medical demonstration apparatus
WO1994029830A1
(en)
*
1993-06-11
1994-12-22
Ticca Pty. Ltd.
Blood pressure demonstration apparatus
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2077024A
(en)
*
1934-09-12
1937-04-13
Tanner James Harmon
Suction device
US2704065A
(en)
*
1954-02-12
1955-03-15
David M Clark
Slow leak valve control for sphygmomanometer
US3241152A
(en)
*
1962-09-25
1966-03-15
Air Reduction
Blood pressure cuff inflator
US3252459A
(en)
*
1962-10-18
1966-05-24
Air Reduction
Blood pressure measuring apparatus
US3563674A
(en)
*
1968-07-16
1971-02-16
Gen Signal Corp
Aspirating device
1971
1971-05-04
US
US140163A
patent/US3670720A/en
not_active
Expired – Lifetime
1972
1972-03-16
GB
GB1226672A
patent/GB1375294A/en
not_active
Expired
1972-03-20
CA
CA137,469,A
patent/CA950702A/en
not_active
Expired
1972-04-27
IT
IT49903/72A
patent/IT952807B/en
active
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2191545A
(en)
*
1986-05-23
1987-12-16
Halkey Roberts Corp
Improvements in or relating to inflators
US20130310227A1
(en)
*
2012-05-18
2013-11-21
Sean Wheeler
Foot strengthening device and method
Also Published As
Publication number
Publication date
US3670720A
(en)
1972-06-20
CA950702A
(en)
1974-07-09
IT952807B
(en)
1973-07-30
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Legal Events
Date
Code
Title
Description
1975-04-09
PS
Patent sealed [section 19, patents act 1949]
1977-10-12
PLNP
Patent lapsed through nonpayment of renewal fees
