Pressure dome for coupling the blood pressure of a patient to a transducer that generates an electrical signal corresponding to pressure

- Hewlett Packard
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Description

FIG. 1 is a perspective view of a pressure dome for coupling the blood pressure of a patient to a transducer that generates an electrical signal corresponding to pressure, showing my new design;

FIG. 2 is a top plan view of FIGS. 1 and 3;

FIG. 3 is a perspective view of a second embodiment of FIG. 1;

FIG. 4 is a bottom plan view of FIG. 3;

FIG. 5 is a bottom plan view of FIG. 1;

FIG. 6 is a right end elevational view of FIG. 1;

FIG. 7 is a right end elevational view of FIG. 3;

FIG. 8 is a back elevational view of FIG. 1; and

FIG. 9 is a back elevational view of FIG. 3.

Referenced Cited
U.S. Patent Documents
3880151 April 1975 Nilsson et al.
4185641 January 29, 1980 Minior et al.
4398542 August 16, 1983 Cunningham et al.
4574811 March 11, 1986 Stephens
Other references
  • "1290C Universal Quartz Pressure Transducer", Hewlett-Packard Company, P/N 5953-7363, Sep. 1984. "For pressure measurements, you can trust-", Hewlett-Packard Company, P/N 5957-5616, Aug. 1985. "Hewlett-Packard introduces a hard bargain. The Universal Quartz Transducer", Hewlett-Packard Company, P/N MG03407. Medex Low Profile Domes, Medex, Inc., Feb. 1984.
Patent History
Patent number: D302465
Type: Grant
Filed: Mar 21, 1986
Date of Patent: Jul 25, 1989
Assignee: Hewlett-Packard Company (Palo Alto, CA)
Inventor: Thomas P. Stephens (Boxford, MA)
Primary Examiner: A. Hugo Word
Assistant Examiner: Stella M. Reid
Attorney: Jeffery B. Fromm
Application Number: 6/845,741
Classifications
Current U.S. Class: D24/21; D24/8