GB680130A - Sphygmograph adapted for the examination of patients' eyes - Google Patents

Sphygmograph adapted for the examination of patients' eyes

Info

Publication number
GB680130A
GB680130A GB26100/49A GB2610049A GB680130A GB 680130 A GB680130 A GB 680130A GB 26100/49 A GB26100/49 A GB 26100/49A GB 2610049 A GB2610049 A GB 2610049A GB 680130 A GB680130 A GB 680130A
Authority
GB
United Kingdom
Prior art keywords
chamber
eyeball
pressure
suction cup
blood
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
Application number
GB26100/49A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMILE ARMAND ZENATTI
Original Assignee
EMILE ARMAND ZENATTI
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.)
Filing date
Publication date
Application filed by EMILE ARMAND ZENATTI filed Critical EMILE ARMAND ZENATTI
Publication of GB680130A publication Critical patent/GB680130A/en
Expired legal-status Critical Current

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
    • A61B5/02216—Ophthalmodynamometers

Abstract

680,130. Sphygmographs. ZENATTI, E. A. Oct. 11, 1949 [Oct. 27, 1948], No. 26100/49. Class 81 (ii). The blood pressure of the blood vessels of the eyeball is measured by subjecting the interior of the eyeball to such a pressure that the blood vessels will just flatten during the diastolic period the pulsations of the blood flowing through the vessels being then observed by means of a manometer or dynamometer or the like. As shown an air pressure chamber 12 is attached to the cornea 14 of an eyeball by a suction cup 5. Air from the bulb 16 is forced into the chamber through the tube 15 the valve 18 being open and the required pressure being measured on the manometer 19. Valve 18 is closed and pulsations of the blood vessels cause, via the diaphragm 13 and chamber 12, oscillations of the liquid column inside the tube 17. In a modification the suction cup is formed by a torus shaped annular member 20, Fig. 6, the chamber 12 being sealed by the actual wall of the cornea. In a modification with a suction cup as in Fig. 4 a diaphragm within the chamber 12 actuates a pointer moving over a scale also in the chamber. The chamber 12 may be formed independent of the suction cap or the chamber may be filled with liquid and be connected to the air pump via a liquid filled transparent vertical tube wherein may be observed the oscillations of the liquid column.
GB26100/49A 1948-10-27 1949-10-11 Sphygmograph adapted for the examination of patients' eyes Expired GB680130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR680130X 1948-10-27

Publications (1)

Publication Number Publication Date
GB680130A true GB680130A (en) 1952-10-01

Family

ID=9022086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26100/49A Expired GB680130A (en) 1948-10-27 1949-10-11 Sphygmograph adapted for the examination of patients' eyes

Country Status (1)

Country Link
GB (1) GB680130A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836173A (en) * 1951-11-30 1958-05-27 Uemura Misao Apparatus to measure intra-cerebral blood pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836173A (en) * 1951-11-30 1958-05-27 Uemura Misao Apparatus to measure intra-cerebral blood pressure

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