Medical device with inflatable cuff

Details Medical device with inflatable cuff Medical device with inflatable cuff

1981-01-27

1983-06-14

Recla, Henry J.

Surgery

Respiratory method or device

Respiratory gas supply means enters mouth or tracheotomy...

604 96, A61M 2500

Patent

active

043877117

ABSTRACT:
A medical device, such as a tracheal tube, having a cuff for blocking a bodily passage, such as the passage through the trachea, is provided. The cuff is made of a material having a low diffusion rate for nitrous oxide and oxygen relative to the diffusion rate for nitrogen so that, for example, when nitrous oxide is provided as an anesthetic during a surgical procedure in which the tracheal tube is utilized, excessive pressure build-up does not occur within the cuff and post-operative trauma in the tracheal area is avoided. Polyvinylidine chloride-polyvinyl chloride copolymer is disclosed as a suitable material.

REFERENCES:
patent: 2477614 (1949-08-01), Irons
patent: 2934514 (1960-04-01), Salyer et al.
patent: 3659612 (1972-05-01), Shiley et al.
patent: 3734100 (1973-05-01), Walker et al.
patent: 4151149 (1979-04-01), Smith
patent: 4239799 (1980-12-01), Weinberg
patent: 4320175 (1982-03-01), Hisazumi et al.
patent: 4331142 (1982-05-01), Degen
Bernhard et al, "Physical Characteristics of and Rates of Nitrous Oxide Diffusion into Tracheal Cuffs", Anesthesiology 48: 413-417; 1978.

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