Patent CA1150122A successfully refreshed from Google Patents.
US3769983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical devices
Assignee: Individual
•
Filing: 1970-08-26
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Granted: 1973-11-06
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Expires: 1990-08-26
Abstract
Abstract Apparatus for intubation within body passages, comprising an elongated tube having the usual opening at the distal end and means for connection to a source of fluid, such as air, at the other end. Occlusion means is located about the surface of the tube near the open end to seal the space between the passage and the tube against flow of air. The occlusion means comprises a bag or canopy secured at its center, to the outer surface of the tube and terminating in a free edge directed toward the distal end being substantially open for receipt of air from the direction of the open end of said tube. The canopy is adapted to be distended against the inner surface of the passage to form the required seal.
Inventors
- 👤 A Meray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:06
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0434; A61M16/0445; A61M16/0447; A61M16/045; A61M16/0452
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
184 words
A device for intubation in a tracheal passage or the like, comprising a hollow tube having a distal end for insertion into said tracheal passage and a proximal end adapted to be connected to means for selectively delivering a gas through said tube, a canopy of flexible material surrounding said tube, spaced proximally of said distal end for preventing back flow of gas in said passage about said tube, said canopy comprising a dome portion having an edge oriented to the proximal end of said tube, an expandable body portion and a relatively non-expandable distal edge oriented to the distal end of said tube, said proximal edge of said dome portion being secured to the outer surface of said tube to prevent substantial movement of gas therebetween, said distal edge having a circumference less than the greatest circumference of the body portion when said body portion is distended and being spaced radially from the surface of said tube to permit gas to freely flow into said canopy, said body portion being expandable by said gas to distend within the passage to occlude the same.
Claim 2
Independent Claim
184 words
A device for intubation in a tracheal passage or the like, comprising a hollow tube having a distal end for insertion into said tracheal passage and a proximal end adapted to be connected to means for selectively delivering a gas through said tube, a canopy of flexible material surrounding said tube, spaced proximally of said distal end for preventing back flow of gas in said passage about said tube, said canopy comprising a dome portion having an edge oriented to the proximal end of said tube, an expandable body portion and a relatively non-expandable distal edge oriented to the distal end of said tube, said proximal edge of said dome portion being secured to the outer surface of said tube to prevent substantial movement of gas therebetween, said distal edge having a circumference less than the greatest circumference of the body portion when said body portion is distended and being spaced radially from the surface of said tube to permit gas to freely flow into said canopy, said body portion being expandable by said gas to distend within the passage to occlude the same.
Claim 3
Dependent Claim
33 words
The device according to claim 1, including means connecting the distal edge of said canopy to the surface of said tube to limit proximal movement and lateral shifting of said edge relative thereto.
Claim 4
Dependent Claim
30 words
The device according to claim 2 wherein the connecting means comprise one or more shroud lines about the distal edte, said shroud lines extending to the surface of said tube.
Claim 5
Dependent Claim
40 words
The device according to claim 2 wherein the dome portion of said canopy is substantially circular and said body portion is symmetrical about said tube, the distal edge of said canopy lying in a plane substantially perpendicular to the tube.
Claim 6
Dependent Claim
30 words
The device according to claim 1 including supporting members integrally formed with said dome portion and symmetrical with the axis of said tube for maintaining said dome in distended position.
Claim 7
Dependent Claim
20 words
The device according to claim 1 wherein said canopy is formed with a plurality of pleats expandable under air pressure.
Claim 8
Dependent Claim
20 words
The device according to claim 1 wherein the distal edge of said canopy is provided with a circumferential reinforcing member.
Claim 9
Dependent Claim
22 words
The device according to claim 1 wherein said canopy is formed with circumferential areas of at least two different degrees of expandability.
Claim 10
Dependent Claim
20 words
The device according to claim 1 wherein said canopy is secured to said tube by means permitting its selected removal.
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |