Stoma stent system
US5048518A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/1045
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stoma stent system for treating patients after tracheostomy and maintenance of a tracheastomy tract includes a tubular stent for insertion in the trachea and several plug components which may be inserted into the open, free end of the stent for several functions. For example, a plug may have several inserts for progressively constricting air flow through the stent to wean the patient off the stent. The same, or another plug may include a vapor source for transferring moisture from exhaled air to inhaled air. A third plug may include a check valve which blocks exhaled air and redirects the air toward the vocal cords to permit the patient to speak and cough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.