| US 7,481,787 B2 | ||
| Fluid handling cassette having a spectroscopic sample cell | ||
| Jennifer H. Gable, Newark, Calif. (US); James R. Braig, Piedmont, Calif. (US); Kenneth I. Li, Piedmont, Calif. (US); Mark Wechsler, San Mateo, Calif. (US); Peng Zheng, Alameda, Calif. (US); and Richard Keenan, Livermore, Calif. (US) | ||
| Assigned to OptiScan Biomedical Corporation, Hayward, Calif. (US) | ||
| Filed on Dec. 21, 2005, as Appl. No. 11/316,672. | ||
| Claims priority of provisional application 60/652660, filed on Feb. 14, 2005. | ||
| Claims priority of provisional application 60/658001, filed on Mar. 02, 2005. | ||
| Claims priority of provisional application 60/673551, filed on Apr. 21, 2005. | ||
| Claims priority of provisional application 60/724199, filed on Oct. 06, 2005. | ||
| Prior Publication US 2006/0188407 A1, Aug. 24, 2006 | ||
| Int. Cl. A61N 1/30 (2006.01) | ||
| U.S. Cl. 604—19 | 36 Claims |
| 1. A fluid handling module configured for removable engagement with a reusable main fluid handling instrument, said module
comprising:
a module housing;
a first fluid passageway extending from said module housing, said first fluid passageway having a patient end remote from
said housing, said first fluid passageway configured to provide fluid communication with a bodily fluid in a patient;
a fluid component separator in fluid communication with said first fluid passageway, said fluid component separator configured
to be rotated about an axis of rotation to separate at least a first component of said bodily fluid from a second component
of said bodily fluid drawn from said patient;
a spectroscopic sample cell disposed on said fluid component separator;
a spectroscopic sample chamber operatively coupled to the sample cell, the spectroscopic sample chamber comprising an analysis
region for containing the first component of said bodily fluid and a non-analysis region for containing the second component
of said bodily fluid, the analysis region being located between the axis of rotation and the non-analysis region; and
a source of flush fluid in fluid communication with said spectroscopic sample chamber, the source of flush fluid being adapted
displace the first and second components out of the spectroscopic sample chamber to permit a plurality of samples of the bodily
fluid to be analyzed.
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