Patent US3667475A successfully refreshed from Google Patents.
US3667475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endo-tracheal tube adaptors for use in administering gases
Assignee: NAT EQUIPMENT RESEARCH Inc
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Filing: 1971-05-10
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Granted: 1972-06-06
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Expires: 1991-05-10
Abstract
Abstract An endo-tracheal tube adaptor including an inexpensive, light weight, transparent open-bottom housing, there being a flexible elastic diaphragm removably stretched over said housing bottom having an expandable opening through which the ends of endotracheal tubes of various diameters can be projected to couple the same to a gas supply line connected to said adaptor, the transparency of said housing enabling an attendant to detect an accumulation of phlegm or other foreign matter therein, and the detachable nature of said diaphragm permitting said foreign matter to be readily removed from the housing.
Inventors
- 👤 Fred W Venturelli
- 👤 Foy L Brigman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:04
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0463
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
143 words
An endo-tracheal tube adaptor comprising, a housing formed of a sufficiently transparent material to provide for visual inspection of the interior thereof, said housing having a top wall, a side wall and an open bottom, an annular flange projecting radially outwardly from said side wall at said bottom, means on the housing for connecting the housing to a gas supply conduit, and a diaphragm removably mounted on the bottom of said housing and being formed of a flexible elastic material, said diaphragm having an axially extending peripheral flange adapted to be stretched over and sealingly engaged on said housing annular flange, a central opening in said diaphragm through which the end of an endo-tracheal tube can be inserted to couple said tube to the gas conduit, said diaphragm opening being adapted to be stretched to accommodate and sealingly engage tubes of various sizes.
Claim 2
Dependent Claim
143 words
An endo-tracheal tube adaptor comprising, a housing formed of a sufficiently transparent material to provide for visual inspection of the interior thereof, said housing having a top wall, a side wall and an open bottom, an annular flange projecting radially outwardly from said side wall at said bottom, means on the housing for connecting the housing to a gas supply conduit, and a diaphragm removably mounted on the bottom of said housing and being formed of a flexible elastic material, said diaphragm having an axially extending peripheral flange adapted to be stretched over and sealingly engaged on said housing annular flange, a central opening in said diaphragm through which the end of an endo-tracheal tube can be inserted to couple said tube to the gas conduit, said diaphragm opening being adapted to be stretched to accommodate and sealingly engage tubes of various sizes.
Claim 3
Dependent Claim
24 words
The endo-tracheal tube adaptor according to claim 1 including an entegral collar said opening, said collar being adapted to sealingly engage an endo-tracheal tube.
Claim 4
Dependent Claim
35 words
The endo-tracheal tube adaptor according to claim 1 including a plurality of ribs formed on the inner surface of said top wall to prevent closing of the endo-tracheal tube on engagement with said top wall.
Claim 5
Dependent Claim
14 words
The endo-tracheal tube adaptor according to claim 1 wherein said side wall is frusto-conical.
Claim 6
Dependent Claim
18 words
The endo-tracheal tube adaptor according to claim 1 wherein said housing is formed of a rigid plastic material.
Claim 7
Dependent Claim
90 words
An endo-tracheal tube adaptor comprising, a transparent housing having a top wall, a side wall and an open bottom, means on said housing for connecting said housing to a gas supply conduit, a flexible elastic diaphragm removably mounted on said bottom end of the side wall to form a chamber in said housing, said diaphragm including means for sealingly engaging the outer periphery of the bottom end of said side wall, and an Opening for receiving an endo-tracheal tube, and a collar about said opening for sealingly engaging said tube.
Claim 8
Dependent Claim
90 words
An endo-tracheal tube adaptor comprising, a transparent housing having a top wall, a side wall and an open bottom, means on said housing for connecting said housing to a gas supply conduit, a flexible elastic diaphragm removably mounted on said bottom end of the side wall to form a chamber in said housing, said diaphragm including means for sealingly engaging the outer periphery of the bottom end of said side wall, and an Opening for receiving an endo-tracheal tube, and a collar about said opening for sealingly engaging said tube.
Claim 9
Dependent Claim
41 words
The adaptor according to claim 6 wherein said housing has a frusto-conical configuration and a flange around the outer periphery of the bottom end of said side wall to provide a seal on engagement with said sealing means on said diaphragm.
Claim 10
Dependent Claim
23 words
The adaptor according to claim 6 wherein said housing is formed from a rigid plastic and said side wall has a frusto-conical configuration.
Claim 11
Dependent Claim
31 words
The adaptor according to claim 6 including a number of ribs on the inner surface of said housing to prevent closing of the endo-tracheal tube on engagement with the top wall.
Claim 12
Dependent Claim
17 words
The endo-tracheal tube adaptor according to claim 9 wherein said top wall and said diaphragm are parallel.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |