Blood pressure measuring device with a cuff of two openable...

Details Blood pressure measuring device with a cuff of two openable... Blood pressure measuring device with a cuff of two openable...

2008-01-08

2008-01-08

Marmor, II, Charles A. (Department: 3735)

Surgery

Diagnostic testing

Cardiovascular

C600S485000, C600S490000

Reexamination Certificate

active

07316652

ABSTRACT:
Traditional cuffs for measuring blood pressure use an air chamber enclosed in a non-stretchable fabric to occlude an artery in a limb when supplied with pressurised air. A stethoscope used on the limb is used to monitor blood flow. Application of the cuff is inconvenient and correct placement of the stethoscope chestpiece requires skill. According to the invention blood pressure measurement is facilitated by having the air chamber enclosed in a pre-formed shell-like structure being flexible around the limb and stiff along the limb and by using a linear array of microphones to detect the blood flow noises, the best signal from one of the microphones being automatically selected. Furthermore, the invention provides a facility for correcting the reading in dependence of the amount of wrap of the limb.

REFERENCES:
patent: 4058117 (1977-11-01), Kaspari et al.
patent: 4248241 (1981-02-01), Tacchi
patent: 4248242 (1981-02-01), Tamm
patent: 4337778 (1982-07-01), Akira et al.
patent: 4790325 (1988-12-01), Lee
patent: 5025793 (1991-06-01), Richley et al.
patent: 5031630 (1991-07-01), Hirano et al.
patent: 5201320 (1993-04-01), Barker
patent: 5421341 (1995-06-01), Marangoni
patent: 5560365 (1996-10-01), Ogura
patent: 2002/0107450 (2002-08-01), Ogura

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