Claims
- 1. A cannula assembly, defining an interior cavity of a cannula having a main body, first and second nares and a mouthpiece, comprising:a first elongate nare forming mandrel; a second elongate nare forming mandrel; an elongate mouthpiece forming mandrel; and an elongate main body forming mandrel defining a recessed rectangular section slidably receiving, engaging and supporting a connector end feature of the mouthpiece forming mandrel and defining a transverse opening receiving, engaging and supporting an end of one of the first and second nare forming mandrels, and the elongate main body forming mandrel comprising two separate components defining a void therebetween for forming a septum.
- 2. The assembly according to claim 1, wherein an end of each of the first and second the nare forming mandrels are received, engaged and supported by respective ones of two openings disposed one on each side of the recessed rectangular section.
Parent Case Info
This application is a divisional of Ser. No. 09/883,843 filed on Jun. 18, 2001 and now U.S. Pat. No. 6,533,984 which is a continuation in part application of Ser. No. 09/754,471 filed on Jan. 4, 2001 and now U.S. Pat. No. 6,533,983.
This invention provides a novel method of producing cannulas suitable for use in both nasal and oral applications, using disconnectable mandrel parts to form the mold over which cannula forming plastics material is applied to form the cannula.
US Referenced Citations (37)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0 993 094 |
Aug 1999 |
EP |
1775957 |
Sep 1995 |
RU |
1793628 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/754471 |
Jan 2001 |
US |
Child |
09/883843 |
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US |