US4256099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-tube resuscitation system
Assignee: Individual
•
Filing: 1979-03-21
•
Granted: 1981-03-17
•
Expires: 1999-03-21
Abstract
Abstract Two tubes of flexible, resilient transparent material are introduced side-by-side into the oral cavity. The distal ends of the tubes are longitudinally spaced, so that the more remote end will enter either the esophagus or larynx before the more proximate distal end enters either passageway. A cuff adjacent the more remote distal end is inflated to seal the tube in the passageway. A collar is placed at the mouth and seals the tube at the mouth and is retained in place. A nose clip seals the nasal cavity. Air is introduced to the uncuffed tube. If it is thereby supplied to the trachea, ventilation is continued through that tube. If air is not thereby supplied to the trachea, air is supplied to the cuffed tube, which has entered the trachea, and ventilation is thereupon provided to that tube. Aspiration or administration of material can be provided through whichever tube is not supplying air to the trachea.
Inventors
- 👤 Gale E. Dryden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/0497; A61M16/0402; A61M16/0415; A61M16/0463; A61M16/08; A61M16/0816; A61M16/0833
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
53 words
Resuscitation apparatus comprising: first and second curved resilient tubes, each tube having a proximal end and a distal end, said tubes being in side-by-side relationship throughout a portion of their length, with the distal end of the second tube spaced lengthwise of said first tube from the distal end of said first tube,
Claim 2
Dependent Claim
53 words
Resuscitation apparatus comprising: first and second curved resilient tubes, each tube having a proximal end and a distal end, said tubes being in side-by-side relationship throughout a portion of their length, with the distal end of the second tube spaced lengthwise of said first tube from the distal end of said first tube,
Claim 3
Dependent Claim
173 words
an external inflatable cuff on said first tube between the distal end of said first tube and the distal end of said second tube, cuff inflating means extending from said cuff to a point near the proximal end of said first tube, and a guide member having first and second curvilinear guideways therein receiving said tubes therein, said first tube being longitudinally and guidedly slidable in said first guideway for direction to the esophagus of a subject to be treated, said guide member having a proximal end and a distal end and a locator flange remote from the distal end, said guideways having the same curvatures throughout most of their lengths from the proximal end toward the distal end of said member, and each of said guideways having a curvilinear longitudinal axis in a plane parallel to a longitudinal axis plane of the other guideway, each of said guideways having an exit end at the distal end of said guide member, with said exit ends remaining in said plane but having diverging axes.
Claim 4
Dependent Claim
173 words
an external inflatable cuff on said first tube between the distal end of said first tube and the distal end of said second tube, cuff inflating means extending from said cuff to a point near the proximal end of said first tube, and a guide member having first and second curvilinear guideways therein receiving said tubes therein, said first tube being longitudinally and guidedly slidable in said first guideway for direction to the esophagus of a subject to be treated, said guide member having a proximal end and a distal end and a locator flange remote from the distal end, said guideways having the same curvatures throughout most of their lengths from the proximal end toward the distal end of said member, and each of said guideways having a curvilinear longitudinal axis in a plane parallel to a longitudinal axis plane of the other guideway, each of said guideways having an exit end at the distal end of said guide member, with said exit ends remaining in said plane but having diverging axes.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 wherein: said guideways are oppositely facing grooves having a common wall.
Claim 6
Dependent Claim
80 words
The apparatus of claim 2 wherein: both of said tubes are slidably received in said guideways but normally frictionally retained in their respective guideways, and slideable lengthwise therein from positions wherein the distal ends of said tubes are flush with the distal end of said guide member, to positions where the distal ends project lengthwise outward from the distal end of said guide member and are advanced to the said positions of lengthwise spacing of distal ends of said tubes.
Claim 7
Dependent Claim
13 words
The apparatus of claim 2 wherein: said guide member is semi-rigid and pre-formed.
Claim 8
Dependent Claim
21 words
The apparatus of claim 1 wherein: there is a lip seal sealingly mounted to said member and sealed to said flange.
Claim 9
Dependent Claim
46 words
A resuscitation apparatus guide member comprising: a pair of oppositely facing curvilinear guide channels having a common wall from one end to a point adjacent the other end, said guide channels having axes lying in parallel planes and diverging at said other end, from said point.
Claim 10
Dependent Claim
46 words
A resuscitation apparatus guide member comprising: a pair of oppositely facing curvilinear guide channels having a common wall from one end to a point adjacent the other end, said guide channels having axes lying in parallel planes and diverging at said other end, from said point.
Claim 11
Dependent Claim
33 words
The member of claim 6 wherein: said guideways have cross sectional shapes at spaced points along the length of said guideways, said shapes including channel walls having outer edges directed toward each other.
Claim 12
Dependent Claim
14 words
The member of claim 6 wherein: a locator flange is at said one end.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |