Methods and devices for reduction of motion-induced noise in...

Details Methods and devices for reduction of motion-induced noise in... Methods and devices for reduction of motion-induced noise in...

2006-02-14

2006-02-14

Nasser, Robert L. (Department: 3736)

Surgery

Diagnostic testing

Cardiovascular

C600S500000, C600S336000

Reexamination Certificate

active

06997879

ABSTRACT:
Methods and devices are provided for reducing motion artifacts when monitoring volume changes in blood vessels. Light having a first wavelength and light having a second wavelength are transmitted through a human appendage, toward the epidermis of a patient, or through tissue within the body of a patient. A portion of the light having the first wavelength and a portion of the light having the second wavelength is received. A first signal is produced based on the received portion of light having the first wavelength. A second signal is produced based on the received portion of light having the second wavelength. One of the first and second signals is subtracted from the other to produce a plethysmography signal that is representative of volume changes in blood vessels of patient tissue.

REFERENCES:
patent: 3139086 (1964-06-01), Botsch et al.
patent: 3412729 (1968-11-01), Smith, Jr.
patent: 4030485 (1977-06-01), Warner
patent: 4157708 (1979-06-01), Imura
patent: 4266554 (1981-05-01), Hamaguri
patent: 4407290 (1983-10-01), Wilber
patent: 4418700 (1983-12-01), Warner
patent: 4541439 (1985-09-01), Hon
patent: 4621643 (1986-11-01), New, Jr. et al.
patent: 4653498 (1987-03-01), New, Jr. et al.
patent: 4714080 (1987-12-01), Edgar et al.
patent: 4714341 (1987-12-01), Hamaguri et al.
patent: 4730389 (1988-03-01), Baudino et al.
patent: 4750495 (1988-06-01), Moore et al.
patent: 4815469 (1989-03-01), Cohen et al.
patent: 4819752 (1989-04-01), Zelin
patent: 4832484 (1989-05-01), Aoyagi et al.
patent: 4834107 (1989-05-01), Warner
patent: 4907594 (1990-03-01), Muz
patent: 5040533 (1991-08-01), Fearnot
patent: 5040538 (1991-08-01), Mortazavi
patent: 5055671 (1991-10-01), Jones
patent: 5176137 (1993-01-01), Erickson et al.
patent: 5222495 (1993-06-01), Clarke et al.
patent: 5246002 (1993-09-01), Prosser
patent: 5349961 (1994-09-01), Stoddart et al.
patent: 5396893 (1995-03-01), Oberg et al.
patent: 5413100 (1995-05-01), Barthelemy et al.
patent: 5421329 (1995-06-01), Casciani et al.
patent: 5490505 (1996-02-01), Diab et al.
patent: 5499627 (1996-03-01), Steuer et al.
patent: 5544661 (1996-08-01), Davis et al.
patent: 5556421 (1996-09-01), Prutchi et al.
patent: 5676141 (1997-10-01), Hollub
patent: 5730125 (1998-03-01), Prutchi et al.
patent: 5779631 (1998-07-01), Chance
patent: 5857975 (1999-01-01), Golub
patent: 5862805 (1999-01-01), Nitzan
patent: 5865755 (1999-02-01), Golub
patent: 5891022 (1999-04-01), Pologe
patent: 5954644 (1999-09-01), Dettling et al.
patent: 6018673 (2000-01-01), Chin et al.
patent: 6064898 (2000-05-01), Aldrich
patent: 6104938 (2000-08-01), Huiku et al.
patent: 6122536 (2000-09-01), Sun et al.
patent: 6151516 (2000-11-01), Kiani-Azarbayjany et al.
patent: 6374129 (2002-04-01), Chin et al.
patent: 6393311 (2002-05-01), Edgar et al.
patent: 0 524 083 (1992-07-01), None
patent: WO 94/03102 (1994-02-01), None
Coetzee, et al., “Noise-Resistant Pulse Oximetry Using a Synthetic Reference Signal”, IEEE Transactions on Biomedical Engineering, vol. 47, No. 8, Aug. 2000, pp. 1018-1026.
Yoshiya, et al.; “Spectrophotometric Monitoring of Arterial Oxygen Saturation in the Fingertip”; Medical & Biological Engineering & Computing; Jan. 1980; pp 27-32.
Flewelling; “Noninvasive Optical Monitoring”; Biomedical Engineering Handbook; CRC Press, Inc., 1995; pp. 1346-1356.

Affiliated with

Also associated with

Rating

Methods and devices for reduction of motion-induced noise in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and devices for reduction of motion-induced noise in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and devices for reduction of motion-induced noise in... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3688196