Patent · US Expired

Tracheostoma closure device

US5107828A · kind A · utility

23Cited by

10References

28Claims

0Family size

Assignee

Walter Koss · DE

Inventors

Walter Koss · Geisenheim, DE
Ingo Herrmann · Friolzheim, DE

Key dates

Filing date	Jun 15, 1990
Grant date	Apr 28, 1992
Priority date	—
Expiry date	Jun 15, 2010

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2209/04
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Described is a tracheostoma closure device which has a valve (18, 23) which can be actuated at will be breathing out, to permit the patient to speak. The arrangement has an open tube portion (10) which can be introduced into the stoma and from which extends a passage stump portion (7) which leads outwardly through the stoma and which on its front side carries a housing (9) for the valve. An adjustable flange ring (8) for sealing off the stoma is carried on the passage stump portion (7). The valve is formed by a non-return valve flap (18) which is mounted pivotally in the valve housing (9) and which opens in the direction of breathing in and closes in the direction of breathing out when a predetermined flow speed is exceeded.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.