US4328797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Naso-gastric oxygen mask
Assignee: Individual
•
Filing: 1980-07-23
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Granted: 1982-05-11
•
Expires: 2000-07-23
Abstract
Abstract A mask for delivery of gas, such as oxygen, to a patient and useable in a naso-gastric intubation procedure without disruption of the seal between the mask and the face of the patient. The body of the mask includes a fenestration or opening through which the naso-gastric tube may be inserted. The fenestration is preferably shaped to support the tube in manner which is comfortable for the patient and which eliminates or minimizes the amount of gas lost to the atmosphere outside the mask. In at least some embodiments, the fenestration is closed when a tube is not inserted therethrough so that the mask may be used normally without loss of the gas through the fenestration.
Inventors
- 👤 Offord L. Rollins, III
- 👤 Anthony F. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:19
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61M16/0683; A61M2202/00; A61M2202/02; A61M2202/0208; A61M2210/00; A61M2210/06; A61M2210/0618; A61M2210/10; A61M2210/1042; A61M2210/1053; Y; Y10; Y10S; Y10S128/00; Y10S128/912
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
170 words
A face mask for the administration of a gas such as oxygen comprising a mask body of such size and shape adapted to cover at least the nose of a patient and having a peripheral edge; means for holding the mask against the face of a patient; means for directing a flow of a gas to the interior of the mask; means about the peripheral edge of the body for substantially sealing at least a portion of the body of the mask against the skin of the patient; and means for admitting a naso-gastric tube into the interior of the mask body for insertion into the nostril of the patient comprising a fenestration in the body extending through the peripheral edge and sealing means and located in a convenient position for allowing the passage of the tube through the fenestration and into the nostril of the patient, and means for substantially closing the fenestration to prevent the loss therethrough of gas directed into the mask body by the directing means.
Claim 2
Dependent Claim
170 words
A face mask for the administration of a gas such as oxygen comprising a mask body of such size and shape adapted to cover at least the nose of a patient and having a peripheral edge; means for holding the mask against the face of a patient; means for directing a flow of a gas to the interior of the mask; means about the peripheral edge of the body for substantially sealing at least a portion of the body of the mask against the skin of the patient; and means for admitting a naso-gastric tube into the interior of the mask body for insertion into the nostril of the patient comprising a fenestration in the body extending through the peripheral edge and sealing means and located in a convenient position for allowing the passage of the tube through the fenestration and into the nostril of the patient, and means for substantially closing the fenestration to prevent the loss therethrough of gas directed into the mask body by the directing means.
Claim 3
Dependent Claim
47 words
The mask of claim 1 wherein the fenestration includes means on the mask body including a slit through which a naso-gastric tube may be passed and seated near one end thereof, means on either side of and defining the slit for substantially sealing a naso-gastric tube therebetween.
Claim 4
Dependent Claim
26 words
The mask of claim 2 wherein the sealing means comprises a sealing liner extending throughout the fenestration and including opposed sealing portions therein defining the slit.
Claim 5
Dependent Claim
21 words
The mask of claim 2 wherein the sealing means comprises means integral with the mask body and defining the slit therebetween.
Claim 6
Dependent Claim
38 words
The mask of claim 3 or 4 including means extending about at least a portion of the fenestration for strengthening the mask body to prevent damage thereto as a naso-gastric tube is installed and seated in the fenestration.
Claim 7
Dependent Claim
15 words
The mask of claim 5 wherein the fenestration includes means for holding the fenestration closed.
Claim 8
Dependent Claim
33 words
The mask of claim 1 or 2 including means extending about at least a portion of the fenestration for preventing damage to the mask body as a tube is installed within the fenestration.
Claim 9
Dependent Claim
74 words
In an oxygen mask including a mask body adapted to cover at least the nose of a wearer and having a peripheral edge and a sealing means extending about the peripheral edge of the body for substantially sealing the mask to the face of a wearer, a fenestration formed in the body and extending through the peripheral edge and sealing means, and means in the fenestration for accepting and seating a naso-gastric tube therein.
Claim 10
Dependent Claim
74 words
In an oxygen mask including a mask body adapted to cover at least the nose of a wearer and having a peripheral edge and a sealing means extending about the peripheral edge of the body for substantially sealing the mask to the face of a wearer, a fenestration formed in the body and extending through the peripheral edge and sealing means, and means in the fenestration for accepting and seating a naso-gastric tube therein.
Claim 11
Dependent Claim
30 words
The mask of claim 8 including means for substantially sealing the tube in the fenestration when the former is seated therein to minimize the loss of oxygen through the fenestration.
Claim 12
Dependent Claim
34 words
The mask of claim 9 wherein the sealing means comprises a liner positioned within the fenestration and having a central slit extending substantially therethrough and being openable in the vicinity of the sealing means.
Claim 13
Dependent Claim
29 words
The mask of claim 9 wherein the sealing means comprises at least two opposed flaps located on opposite sides of the fenestration for holding and sealing a tube therebetween.
Claim 14
Dependent Claim
27 words
The mask of claim 9 wherein the sealing means comprise a plurality of flaps so situated within the fenestration as to hold and seal a tube therebetween.
Claim 15
Dependent Claim
34 words
The mask of claim 8, 9, 10, or 12 including strengthening rib means located about the fenestration to prohibit damage to the mask as a naso-gastric tube is installed and seated in the fenestration.
Claim 16
Dependent Claim
21 words
The mask of claim 13 including means for holding the fenestration closed at the end thereof extending through the sealing means.
Claim 17
Dependent Claim
36 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling a keyhole with the enlarged portion thereof distal from the sealing means for seating the tube when the fenestration is closed.
Claim 18
Dependent Claim
33 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling the crook of a shepards staff wherein an inner end thereof is provided for seating the tube therein.
Claim 19
Dependent Claim
33 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling a circle having an open portion at the sealing means for movement of the mask onto the tube.
Claim 20
Dependent Claim
33 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling a semicircle having an open portion at the sealing means for movement of the mask onto the tube.
Claim 21
Dependent Claim
33 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling a rectangle having an open portion at the sealing means for movement of the mask onto the tube.
Claim 22
Dependent Claim
38 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling a truncated triangle having an open portion at the apex thereof at the sealing means for movement of the mask onto the tube.
Claim 23
Dependent Claim
34 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling an isosceles triangle having an open portion at the sealing means for movement of the mask onto the tube.
Claim 24
Dependent Claim
54 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling a polygon having a number of accepting and seating means therein at least equal to the number of sides of the polygon and having an open portion at the sealing means for movement of the mask onto the tube.
Claim 25
Dependent Claim
33 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling an ovoid having an open portion at the sealing means for movement of the mask onto the tube.
Claim 26
Dependent Claim
46 words
The mask of claim 8 wherein the fenestration is shaped in a form generally resembling a keyhole including overlapping sealing flap therein with the enlarged portion thereof distal from the sealing means for seating of the tube between the sealing flaps when the fenestration is closed.
References Cited (Backward Citations)
US2675803A
Cited
CA503739A
Cited
US2023267A
Cited
US2831487A
Cited
US2859748A
Cited
US3067425A
Cited
US3357426A
Cited
US3388705A
Cited
US3730179A
Cited
US4201205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-10 | 1985-11-09 | 1986-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-10 | 1989-11-09 | 1990-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-10 | 1993-11-09 | 1994-05-11 | $7700.00 | Window Closed / Lapsed |