Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-01-11
1995-11-07
Maglione, Corrine M.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604280, 604283, 433 95, A61M 500
Patent
active
054643970
ABSTRACT:
A valve is provided for preventing backflow of bacteria and other unhealthy substances in a medical suctioning apparatus. The valve includes a chamber and a tubular member positionable in the chamber having one or more reversely lipped fins. The chamber and tubular member provide a tortuous path that effectively limits backflow of bacteria and other unhealthy substances. Various modifications of the valve are disclosed including two, three and four piece valves. The valves are configured to be positioned between a medical suctioning unit and a patient-contacting part such as ejectors, evacuators, and medical yankauers. The valve shapes facilitate manufacture, and can be made of disposable or autoclavable materials.
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Exhibit A is literature published by SurgiMark Inc. of Yakima, Washington regarding medical yankauer tips.
Maglione Corrine M.
Tsosie Bryan L.
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