Patent US3886946A successfully refreshed from Google Patents.
US3886946A
Expired / Lapsed
US
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Trachea instrument
Assignee: Individual
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Filing: 1973-11-09
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Granted: 1975-06-03
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Expires: 1993-11-09
Abstract
Abstract The Trachea Instrument provides a means for reestablishing the supply of oxygen to the lungs below a blockage in the throat or trachea. The instrument consists of a tube of an established length, sharpened at an angle at its exposed end for piercing the front of the throat or neck and the trachea, secured within a handle or grip, for establishing an air vent supplying oxygen below the point of a blockage. The handle is formed so that the penetration is indexed correctly with respect to the angle or position of the cutting edge and precisely restricts the penetration thus precluding any excessive penetration or individual judgement.
Inventors
- 👤 Vernon E Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:02
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/0472
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
138 words
A tracheotomy instrument for non-professional emergency use providing air passage to the lungs of a victim to avoid asphyxiation comprising a straight tubular knife in the form of a right circular cylinder having an outer end and a cutting end, said cutting end being slanted to provide an oval opening sharpened into a continuous cutting edge with a rounded point and a handle of greater diameter than said tubular knife immovably secured to the outer end of said tubular knife with a uniform axial passage continuously through said knife and said handle, said handle having a radially outwardly extending stop limiting penetration of said cutting end to entry of the oval opening into the trachea without scraping or penetration of the posterior wall of the trachea upon insertion at right angles to the vertical axis of the trachea.
Claim 2
Dependent Claim
138 words
A tracheotomy instrument for non-professional emergency use providing air passage to the lungs of a victim to avoid asphyxiation comprising a straight tubular knife in the form of a right circular cylinder having an outer end and a cutting end, said cutting end being slanted to provide an oval opening sharpened into a continuous cutting edge with a rounded point and a handle of greater diameter than said tubular knife immovably secured to the outer end of said tubular knife with a uniform axial passage continuously through said knife and said handle, said handle having a radially outwardly extending stop limiting penetration of said cutting end to entry of the oval opening into the trachea without scraping or penetration of the posterior wall of the trachea upon insertion at right angles to the vertical axis of the trachea.
Claim 3
Dependent Claim
138 words
A tracheotomy instrument for non-professional emergency use providing air passage to the lungs of a victim to avoid asphyxiation comprising a straight tubular knife in the form of a right circular cylinder having an outer end and a cutting end, said cutting end being slanted to provide an oval opening sharpened into a continuous cutting edge with a rounded point and a handle of greater diameter than said tubular knife immovably secured to the outer end of said tubular knife with a uniform axial passage continuously through said knife and said handle, said handle having a radially outwardly extending stop limiting penetration of said cutting end to entry of the oval opening into the trachea without scraping or penetration of the posterior wall of the trachea upon insertion at right angles to the vertical axis of the trachea.
Claim 4
Dependent Claim
138 words
A tracheotomy instrument for non-professional emergency use providing air passage to the lungs of a victim to avoid asphyxiation comprising a straight tubular knife in the form of a right circular cylinder having an outer end and a cutting end, said cutting end being slanted to provide an oval opening sharpened into a continuous cutting edge with a rounded point and a handle of greater diameter than said tubular knife immovably secured to the outer end of said tubular knife with a uniform axial passage continuously through said knife and said handle, said handle having a radially outwardly extending stop limiting penetration of said cutting end to entry of the oval opening into the trachea without scraping or penetration of the posterior wall of the trachea upon insertion at right angles to the vertical axis of the trachea.
Claim 5
Dependent Claim
77 words
The instrument of claim 1 having indexing means on the stop and on the handle adjacent the stop in axial alignment with said rounded point for both visual and tactile determination of the position of the rounded point of the tubular knife providing quick and effective means for correctly placing the instrument at the victim''s throat for penetration into the trachea to provide an unobstructed air passage through the tubular knife from the exterior to the trachea.
Claim 6
Dependent Claim
64 words
The instrument of claim 1, wherein the slant at the cutting end of the tubular knife is at a bias of 9 to 10 mm. to provide a maximum oval opening for the passage of air into the trachea and a slicing efFect when thrust into the victim''s throat in the cricothyroid notch substantially at right angles to the vertical axis of the trachea.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |