Surgery – Truss – Perineal
Patent
1976-02-17
1978-01-17
Howell, Kyle L.
Surgery
Truss
Perineal
A61B 502
Patent
active
040686540
ABSTRACT:
An instrument for measuring blood pressure by sensing the Korotkoff sounds which prevail only between the systolic and the diastolic points. The instrument used is essentially a hand held device which is held in direct contact with the skin over an artery. The instrument has a pressure-sensitive element which responds to pressure, and a crystal transducer which responds to Korotkoff sounds. A pressure is exerted on the instrument occluding the artery and stopping the Korotkoff sounds, and, as the pressure is reduced and the Korotkoff sounds commence, the crystal transducer senses the vibrations from the artery which vibrations are Korotkoff sounds. The crystal triggers a memory circuit, the contents of which are shown on the digital display. The digital display shows the pressure sensed by the strain gauge at the time the sounds appear at the systolic point and again at the diastolic point.
REFERENCES:
patent: 1802685 (1931-04-01), Trier
patent: 1900285 (1933-03-01), Huber
patent: 3123068 (1964-03-01), Bigliano
patent: 3230950 (1966-01-01), Buffington
patent: 3572316 (1971-03-01), Vogelman et al.
patent: 3742937 (1973-07-01), Manuel et al.
patent: 3773038 (1973-11-01), Smith et al.
patent: 3807388 (1974-04-01), Orr et al.
patent: 3814083 (1974-06-01), Fletcher et al.
patent: 3930494 (1976-01-01), Maurer et al.
Brugger Richard D.
Paavola Oiva A.
Howell Kyle L.
Paavola Oiva A.
LandOfFree
Blood pressure measuring apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blood pressure measuring apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blood pressure measuring apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2277681