GB1375294A

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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(en)

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(en)

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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

Download PDF in English

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