US4790818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for clearing epiglottal passages
Assignee: Manhattan College
•
Filing: 1985-04-04
•
Granted: 1988-12-13
•
Expires: 2005-04-04
Abstract
Abstract A method of removing obstructions lodged in the pharnyx and/or larnyx of a victim, including the steps of providing a suction device incorporating a rigid hollow tongue depressor having suction means at a free end thereof; inserting said tongue depressor to a point wherein the free end is adjacent an area in which the obstruction is located; applying suction to the free end to dislodge the obstruction and retain it on the free end, and maintaining the suction while withdrawing the tongue depressor and the obstruction engaged thereon.
Inventors
- 👤 James T. DeLuca
- 👤 Michael Fasano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:15
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/80; A61M1/804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
The method of removing obstructions lodged in the pharynx and/or larynx of a victim comprising the steps of: providing a device including a tongue depressor element having a curved hollow member, a free end of which is insertable into the throat area of the victim, a source of compressed gas, a jet means for providing reduced atmospheric pressure at said free open end of said curved hollow member, and valving means for controlling operation of said jet means; inserting said tongue depressor element into the mouth of a victim to a point where said free end of said curved hollow member is positioned in the area of the pharynx and/or larynx; opening said valving means to cause suction at the free end of said tongue depressor element for a period of time sufficient to dislodge an obstruction and retain said obstruction on said free end; and while maintaining said reduced atmospheric pressure at said open end withdrawing said tongue depressor element through the mouth of the victim with an engaged obstruction.
Claim 2
Independent Claim
171 words
The method of removing obstructions lodged in the pharynx and/or larynx of a victim comprising the steps of: providing a device including a tongue depressor element having a curved hollow member, a free end of which is insertable into the throat area of the victim, a source of compressed gas, a jet means for providing reduced atmospheric pressure at said free open end of said curved hollow member, and valving means for controlling operation of said jet means; inserting said tongue depressor element into the mouth of a victim to a point where said free end of said curved hollow member is positioned in the area of the pharynx and/or larynx; opening said valving means to cause suction at the free end of said tongue depressor element for a period of time sufficient to dislodge an obstruction and retain said obstruction on said free end; and while maintaining said reduced atmospheric pressure at said open end withdrawing said tongue depressor element through the mouth of the victim with an engaged obstruction.
References Cited (Backward Citations)
US1843169A
Cited
US2575513A
Cited
US3499393A
Cited
US3628532A
Cited
US3665919A
Cited
US3939830A
Cited
US4300550A
Cited
US4253831A
Cited
US4451257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |