Blood oxygen sensor having leakage compensation

Details Blood oxygen sensor having leakage compensation Blood oxygen sensor having leakage compensation

1990-09-25

1992-05-19

Smith, Ruth S.

Surgery

Truss

Pad

128419PG, 128666, 356 41, A61B 500

Patent

active

051138620

ABSTRACT:
An improved blood oxygen sensor apparatus having a special leakage compensation circuit that allows proper initialization of the oxygen sensor regardless or the value of leakage resistance which typically might be present in parallel with the oxygen sensor. During an initialization mode, in which a capacitor arranged in parallel with oxygen sensor is charged by a small initialization current, the leakage compensation circuit monitors the capacitor voltage and controllably increases the current if it is determined that the capacitor is charging at an insufficient rate, due to unspecified leakage resistance. This enables the oxygen sensor to be properly initialized such that it can thereafter accurately measure blood oxygen levels.

REFERENCES:
patent: 3474353 (1969-10-01), Keller
patent: 3825016 (1974-07-01), Lale et al.
patent: 3901247 (1975-08-01), Walmsley
patent: 4120307 (1978-10-01), Jirak et al.
patent: 4230120 (1980-10-01), McDonald
patent: 4237897 (1980-12-01), Beane et al.
patent: 4390020 (1983-06-01), Herpers
patent: 4399820 (1983-08-01), Wirtzfeld et al.
patent: 4535774 (1985-08-01), Olson
patent: 4590941 (1986-05-01), Saulson et al.
patent: 4727879 (1988-03-01), Leiss et al.
patent: 4750495 (1988-06-01), Moore et al.
patent: 4791935 (1988-12-01), Baudino et al.
patent: 4813421 (1989-03-01), Baudino et al.
patent: 4815469 (1989-03-01), Colen et al.
patent: 5040538 (1991-08-01), Mortazavi

Affiliated with

Also associated with

Rating

Blood oxygen sensor having leakage compensation 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 oxygen sensor having leakage compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blood oxygen sensor having leakage compensation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2412623