Ciba Corning Diagnostics Corp.

Chiron Diagnostics Corporation

Norman K Parker

Richard L Schulkind

Richard A Dussault

Peter N Karkantis

Beat R Degen

Kevin J Sullivan

James E Rasmussen

Robert B Green

The invention features a sample probe and reagent selector valve that enables selection among multiple functions of withdrawing a biological sample from a syringe or capillary into a fluid parameter sensor module, providing calibration and quality control reagents to the sensor module, and flowing a washing fluid through intake passages to prevent cross-contamination and clogging. The valve and sensor module are used in conjunction with an automated analytical instrument, such as an automated blood analyzer, to increase the speed of the analysis, minimize cross contamination between samples, and to overcome the inherent dangers of using the conventional needle/syringe or capillary methods of withdrawing fluids to be tested. The design of the valve provides performance benefits in the form of lower sample and reagent waste volumes, elimination of auxiliary valves and manifolds, and superior performance and reduced cost.

Multifunction valve

A novel fluid sampling device has been developed. This device provides for sample entry to be handled automatically by the instrument, thus allowing the operator to be involved in other activities while the sampling process is underway. It also assures reproduceable sample size, automatically cleans the sampling device between samples, and reduces the risk of user injury. Furthermore, the sampling system allows for the use of any forseeable collection mechanism.

Automated sampling method for medical diagnostic instrument

Automated sampling device for medical diagnostic instrument

Growing community of inventors

Northfield, MA, United States of America

Norman K Parker