Pressure relief valve for a low pressure cuffed tracheostomy tube
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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.
|D232268||July 1974||Fettel et al.|
|3322126||May 1967||Rusch et al.|
|3848605||November 1974||Harautuneian et al.|
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
International Classification: D2402;