Wedge seal for a tracheotomy tube

Details Wedge seal for a tracheotomy tube Wedge seal for a tracheotomy tube

1975-08-14

1977-03-01

Pellegrino, Stephen C.

Surgery

Truss

Pad

2853342, A61M 2500

Patent

active

040097200

ABSTRACT:
A wedge-like seal for use with a tracheotomy tube having an inner cannula and an outer cannula. The seal is integrally formed within the outer end of the inner cannula to provide a tight seal engagement between the inner cannula and the outer cannula as well as between the coupling connector and the inner cannula. Incorporated in the seal is a circular sealing ridge from which depend two frusto-conical shaped sealing surfaces extending in opposite directions from the central ridge. The seal minimizes the force necessary to establish as well as to disengage the sealing contact between the respective tracheotomy tube parts, eliminating possible discomfort to the patient.

REFERENCES:
patent: 2310944 (1943-02-01), Douglass
patent: 3169529 (1965-02-01), Koenig
patent: 3688774 (1972-09-01), Akiyama
patent: 3693624 (1972-09-01), Shiley et al.

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