Hand held ultrasonic transducer for patient monitoring use

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Description

FIG. 1 is a perspective view of hand held ultrasonic transducer for patient monitoring use showing my new design, this first embodiment being a continuous wave ultrasonic transducer;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a bottom plan view thereof, the spaced ceramic transmitter and receiver piezoelectric elements being shown on the circular end;

FIG. 5 is a left end elevational view thereof;

FIG. 6 is a right end elevational view thereof;

FIG. 7 is a top plan view of an ultrasonic transducer showing my new design, this second embodiment being a pulse type transducer;

FIG. 8 is a side elevational view thereof;

FIG. 9 is a bottom plan view thereof, the single piezoelectric element being shown in the circular end;

FIG. 10 is a left end elevational view thereof;

FIG. 11 is a right end elevational view thereof.

Referenced Cited
U.S. Patent Documents
D211353 June 1968 Bagno
D245515 August 23, 1977 Pennebaker
D251085 February 13, 1979 Fanshawe
3046544 July 1962 Auer, Jr. et al.
3251953 May 1966 Lahti
3927662 December 1975 Ziedonis
4035672 July 12, 1977 Beaverson et al.
4379211 April 5, 1983 Joscelyn et al.
Patent History
Patent number: D281623
Type: Grant
Filed: Sep 30, 1982
Date of Patent: Dec 3, 1985
Assignee: Lawrence Medical Systems, Inc. (Redmond, WA)
Inventor: Stephen R. Barnes (Seattle, WA)
Primary Examiner: Susan J. Lucas
Law Firm: Hughes, Barnard & Cassidy
Application Number: 6/430,117
Classifications
Current U.S. Class: D24/17