Surgery – Truss – Perineal
Patent
1975-03-12
1977-05-03
Kaplan, G. L.
Surgery
Truss
Perineal
1951035R, 195127, 204195M, 204195P, 204195S, 204195B, 324 29, 357 25, A61B 505, G01N 2746, G01N 3114
Patent
active
040208303
ABSTRACT:
A chemical sensitive field-effect transistor transducer capable of selectively detecting and measuring chemical properties of substances to which the transducer is exposed. The transducer includes a semiconductor substrate material having a certain doping polarity, a pair of spaced apart diffusion regions located at the surface of the substrate material and having a doping polarity opposite that of the substrate material, electrical insulator material overlying the diffusion regions and the surface of the substrate material lying between the diffusion regions, and a chemical selective system overlying the insulator material. The chemical selective system is adapted to interact with certain substances and thereby modulate an electric field produced in the substrate material between the diffusion regions. This modulation is dependent upon the chemical properties of the substances and provides a measure of those chemical properties. The chemical selective system may include various structures for measuring ion activity, immunochemical concentrations, reducible gas concentrations and the concentrations of enzymes and substrates.
REFERENCES:
patent: 3049118 (1962-08-01), Arthur et al.
patent: 3294988 (1966-12-01), Packard
patent: 3649505 (1972-03-01), Strickler et al.
patent: 3776819 (1973-12-01), Williams
patent: 3787309 (1974-01-01), Neti et al.
patent: 3831432 (1974-08-01), Cox
patent: 3896008 (1975-07-01), Keyes
patent: 3932233 (1976-01-01), Ruzicka et al.
P. Bergveld, IEEE Trans. on Bio-Med. Eng., pp. 70-71, Jan. 1970.
Tadayuki Matsuo et al., IEEE Trans. on Bio-Med. Eng., pp. 485-487, Nov. 1974.
Piet Bergveld, IEEE Trans. on Bio-Med. Eng., vol. BME-19, No. 5, pp. 342-351, Sept. 1972.
Gary R. Rechnitz, C & EN, pp. 29-35, Jan. 27, 1975.
Janata Jiri A.
Johnson Curtis C.
Moss Stanley D.
Kaplan G. L.
The University of Utah
LandOfFree
Selective chemical sensitive FET transducers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selective chemical sensitive FET transducers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective chemical sensitive FET transducers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-340171