Contact type pulse measurement device

Details Contact type pulse measurement device Contact type pulse measurement device

2005-09-20

2005-09-20

Hindenburg, Max F. (Department: 3736)

Surgery

Diagnostic testing

Cardiovascular

C600S500000, C600S501000

Reexamination Certificate

active

06945940

ABSTRACT:
The present invention discloses a contact type of pulse measurement device, which comprises a first active sensor electrode and a second active sensor electrode having corresponding opposite polarities with each other; and the two active sensor electrodes respectively connected to the pulse measurement device by conductive wires and the pulse measurement device comprises a negative feedback difference common mode signal and a buffer/balanced circuit for providing a circuit with a self common point electrode potential. Therefore, the first bio-potential signal can be detected by means of the first active sensor electrode and the common point electrode. Similarly, a second bio-potential signal having the same magnitude but a different phase as the first bio-potential signal can be detected by the second active sensor electrode and the common point electrode.

REFERENCES:
patent: 4715384 (1987-12-01), Tabata
patent: 5337753 (1994-08-01), Lekhtman
patent: 5365934 (1994-11-01), Leon et al.
patent: 6115629 (2000-09-01), Richter
patent: 6165129 (2000-12-01), Bates
patent: 6506153 (2003-01-01), Littek et al.
patent: 6522255 (2003-02-01), Hsieh

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