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 Title: |
US3946736:
Respirator assist device
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Neward, Theodore C.; Upland, CA 91786
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| Assignee: |
None
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| Published / Filed: |
1976-03-30
/ 1974-10-18
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| Application Number: |
US1974000515830
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| IPC Code: |
Advanced:
A61B 17/24;
A61B 17/50;
Core:
more...
IPC-7:
A61B 17/24;
A61M 1/00;
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| ECLA Code: |
A61B17/24; A61B17/50;
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| U.S. Class: |
Current:
604/181;
600/240;
604/079;
604/275;
606/106;
Original:
128/278;
128/356;
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| Field of Search: |
128/.015,.016,208,245,276,278,297,351,356
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| Priority Number: |
| 1974-10-18 |
US1974000515830 |
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| Abstract: |
A respirator assist device intended to be connected to a hand operated vacuum pump such as disclosed in U.S. Pat. No. 3,612,722 and includes a tubular tongue depressor and sealing means encircling the lips of the user; then, upon manually closing the nose of the user, and operating the pump, a vacuum is created in the throat above an object lodged therein, causing the object to be forced back into the mouth for removal.
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| Attorney, Agent or Firm: |
Lyon & Lyon ;
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| Primary / Asst. Examiners: |
Pace, Channing L.;
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| Family: |
None
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First Claim:
Show all 4 claims |
I claim:
1. A respirator assist device for removal of an object lodged in the throat, said device comprising:
- a. a mouth covering plate having a marginal flange dimensioned to encase and seal the lips of the user;
- b. a pair of flat blade elements extending from the mouth covering plate;
- c. a pair of wall elements extending from the covering plate and joined to the balde elements to form a passageway;
- d. the blade elements being insertable between the palate and the tongue of the user to depress the tongue from the palate, the covering plate limiting the depth of insertion of the blade elements to prevent contact with the back of the mouth and throat;
- e. and means communicating with the passageway through the mouth covering plate for producing a negative pressure in the passageway thereby to produce a pressure differential across an object lodged in the throat and urge the object toward the blade elements.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 5 U.S. patent(s) that reference this one
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