US4520809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anaesthetic induction device
Assignee: Individual
•
Filing: 1983-01-12
•
Granted: 1985-06-04
•
Expires: 2003-01-12
Abstract
Abstract A gas induction device 10 suitable for use in anaesthetizing a child comprises means 12 defining an outlet opening 14 and a flow passage 16 for gases leading to the outlet opening, and an artificial teat 18 connected to said means. The teat can be hollow and can contain a suitable medication 30 which is then sucked from the teat prior to or during the initial stages of anaesthesia.
Inventors
- 👤 Magdel N. de Greef
- 👤 Ian D. Smit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61J; A61J7/00; A61J7/0015; A61J7/0053; A61J17/00; A61J17/001; A61M16/01; A61M16/04; A61M16/0463
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
161 words
A gas induction device for use in anaesthetizing a child, which device comprises: gas delivery and directing means having a flared terminal portion which defines an outlet opening adapted to be positioned in close proximity to the child's nostrils and a widening gas flow passage leading to the outlet opening, said gas delivery and directing means including means for fluidically communicating said gas flow passage with an external source of anaesthetizing gas and being shaped and dimensioned to lie over the child's face except for the child's nostrils; and an artificial teat connected to said gas delivery and directing means in such a manner that, when the teat is located in a sucking position in the child's mouth, said gas delivery and directing means is thereby located so that the outlet opening is in close proximity to the child's nostrils, whereby gases flowing through the passage to the outlet opening are delivered from the outlet opening and directed towards the nostrils.
Claim 2
Dependent Claim
161 words
A gas induction device for use in anaesthetizing a child, which device comprises: gas delivery and directing means having a flared terminal portion which defines an outlet opening adapted to be positioned in close proximity to the child's nostrils and a widening gas flow passage leading to the outlet opening, said gas delivery and directing means including means for fluidically communicating said gas flow passage with an external source of anaesthetizing gas and being shaped and dimensioned to lie over the child's face except for the child's nostrils; and an artificial teat connected to said gas delivery and directing means in such a manner that, when the teat is located in a sucking position in the child's mouth, said gas delivery and directing means is thereby located so that the outlet opening is in close proximity to the child's nostrils, whereby gases flowing through the passage to the outlet opening are delivered from the outlet opening and directed towards the nostrils.
Claim 3
Dependent Claim
28 words
A gas induction device according to claim 1, wherein there is an inlet opening leading into the passage, the inlet opening being substantially smaller than the outlet opening.
Claim 4
Dependent Claim
22 words
A gas induction device according to claim 1, wherein the artificial teat is hollow and has a perforation at its distal end.
Claim 5
Dependent Claim
42 words
A gas induction device according to claim 3, wherein the teat contains a substance which can be sucked from the teat through the perforation, the substance comprising a medication suitable for oral intake prior to or during the initial stages of anaesthesia.
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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) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |