06334065 is referenced by 641 patents and cites 15 patents.

An improved pulse oximeter provides for simultaneous, noninvasive oxygen status and photoplethysmograph measurements at both single and multiple sites. In particular, this multiple-site, multiple-parameter pulse oximeter, or “stereo pulse oximeter” simultaneously measures both arterial and venous oxygen saturation at any specific site and generates a corresponding plethysmograph waveform. A corresponding computation of arterial minus venous oxygen saturation is particularly advantageous for oxygen therapy management. An active pulse-inducing mechanism having a scattering-limited drive generates a consistent pulsatile venous signal utilized for the venous blood measurements. The stereo pulse oximeter also measures arterial oxygen saturation and plethysmograph shape parameters across multiple sites. A corresponding calculation of delta arterial saturation and comparison of plethysmograph shape parameters between multiple sites is particularly advantageous for the detection and management of persistent pulmonary hypertension in neonates (PPHN), a patent ductus arteriosis (PDA), and aortic coarctation.

Title
Stereo pulse oximeter
Application Number
9/323176
Publication Number
6334065 (B1)
Application Date
May 27, 1999
Publication Date
December 25, 2001
Inventor
David Tobler
Westminster
CO, US
Robert James Kopotic
Jamul
CA, US
Massi E Kiani
Laguna Niguel
CA, US
Mohamed K Diab
Mission Viejo
CA, US
Ammar Al Ali
Costa Mesa
CA, US
Agent
Knobbe Martens Olson & Bear
US
Assignee
Masimo Corporation
CA, US
IPC
A61B 5/00
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