Patent US5233977A successfully refreshed from Google Patents.
US5233977A
Expired / Lapsed
US
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Anesthesia/breather bag with a roughened exterior surface
Assignee: Marquest Medical Products Inc
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Filing: 1992-01-14
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Granted: 1993-08-10
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Expires: 2012-01-14
Abstract
Abstract A breather bag (10) is adapted for use with a breathing circuit (12). The exterior surface (38) of the bag (10) is roughened and substantially non-uniform for ease of gripping by an anesthesist (18). When the gloves (33) of the anesthesist (18) are wet, the gloves (33) tend to cause slippage when attempting to squeeze a bag as known in the prior art. Due to the present invention, the roughened exterior surface (38) greatly reduces this likelihood of slippage. A relatively small exterior portion (40) is substantially smooth as is the interior surface (46).
Inventors
- 👤 Tommy Blankenship
- 👤 Robert S. Crook
- 👤 Walter J. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:18
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0057; A61M16/0078
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
183 words
A method for making an anesthesia/breather bag for use in a medical operating room and which supplements an anesthesia machine, comprising: providing a flexible container having an outlet end for connection to a breathing circuit, said container having a single layer that is made of substantially the same material with said single layer being substantially solid throughout; providing a liquid roughening agent in a tank; placing at least portions of said container in the tank; forming a roughened exterior surface as part of said single layer using said liquid roughening agent, with said roughened exterior surface occupying substantially continuously, in both lateral and vertical directions, a majority of the entire exterior surface of said container, said forming step including agitating said liquid roughening agent wherein said exterior surface of said container becomes roughened due to said agitating step, with said agitating step including agitating of said liquid roughenign agent independent of said step of placing said portions of said container in the tank; and leaving substantially no smooth bag portion within said substantially continuously occupying roughened exterior surface during said step of forming.
Claim 2
Independent Claim
183 words
A method for making an anesthesia/breather bag for use in a medical operating room and which supplements an anesthesia machine, comprising: providing a flexible container having an outlet end for connection to a breathing circuit, said container having a single layer that is made of substantially the same material with said single layer being substantially solid throughout; providing a liquid roughening agent in a tank; placing at least portions of said container in the tank; forming a roughened exterior surface as part of said single layer using said liquid roughening agent, with said roughened exterior surface occupying substantially continuously, in both lateral and vertical directions, a majority of the entire exterior surface of said container, said forming step including agitating said liquid roughening agent wherein said exterior surface of said container becomes roughened due to said agitating step, with said agitating step including agitating of said liquid roughenign agent independent of said step of placing said portions of said container in the tank; and leaving substantially no smooth bag portion within said substantially continuously occupying roughened exterior surface during said step of forming.
Claim 3
Dependent Claim
45 words
A method, as claimed in claim 1, wherein: said step of agitating includes applying a force to said tank during one of: before said portions of said container are placed in the tank and while said portions of said container are placed in the tank.
Claim 4
Dependent Claim
27 words
A method, as claimed in claim 1, wherein: said step of forming includes creating substantially the same degree of roughness throughout all of said roughened exterior surface.
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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) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-09 | 2005-02-08 | 2005-08-10 | $7700.00 | Window Closed / Lapsed |