The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 1977
Filed:
Jan. 02, 1976
Henry D Schwartz, Palo Alto, CA (US);
Other;
Abstract
The testing apparatus is preferably for the measurement of ionized calcium and other ions in biologic fluids. The apparatus generally comprises a turntable that is incrementally operated, a cover overlying the turntable, a housing for supporting the turntable and cover and a plurality of sample cups carried by the turntable. At one area of the cover there is defined a probe station having means supporting a plurality of probes which sample the fluid in the cups and generate electrical signal responsive to sensed ions which signal may be a high impedance signal. The electrical signal is coupled preferably via a coaxial cable to a relay device and from thence to an electrometer external of the apparatus. The relay device and other electrical or conductive components are isolated from chassis ground to improve signal transmission. A special shield dome covers the turntable, cover and probe assembly and this shield dome is the only part above the housing that is grounded. The dome has a lower position resting on the housing top and an upper position which permits access to the turntable. The dome is transparent as are the individual probes.