Pressure relief valve for a low pressure cuffed tracheostomy tube

- Shiley Laboratories, Inc.
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Description

FIG. 1 is a perspective view taken from the top, one side and one end of a pressure relief valve for a low pressure cuffed tracheostomy tube showing our new design.

FIG. 2 is an elevational view taken from the side opposite that shown in FIG. 1.

FIG. 3 is an elevational view taken from the end opposite that shown in FIG. 1.

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D41492 June 1911 Mason
D196723 October 1963 Davis
D232268 July 1974 Fettel et al.
3322126 May 1967 Rusch et al.
3794043 February 1974 McGinnis
3810474 May 1974 Cross
3848605 November 1974 Harautuneian et al.
3889676 June 1975 Greene
Patent History
Patent number: D243412
Type: Grant
Filed: Aug 25, 1975
Date of Patent: Feb 15, 1977
Assignee: Shiley Laboratories, Inc. (Santa Ana, CA)
Inventors: Kenneth K. Krueger (Tustin, CA), Todor Pavlov (Laguna Niguel, CA)
Primary Examiner: James R. Largen
Attorney: Louis J. Knobbe
Application Number: 5/607,264
Classifications
Current U.S. Class: D32/1R
International Classification: D2402;