CA2107027A1 - Laryngeal Mask Construction - Google Patents
Laryngeal Mask ConstructionInfo
- Publication number
- CA2107027A1 CA2107027A1 CA 2107027 CA2107027A CA2107027A1 CA 2107027 A1 CA2107027 A1 CA 2107027A1 CA 2107027 CA2107027 CA 2107027 CA 2107027 A CA2107027 A CA 2107027A CA 2107027 A1 CA2107027 A1 CA 2107027A1
- Authority
- CA
- Canada
- Prior art keywords
- mask
- pharynx
- shell
- laryngeal
- per
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title 1
- 210000003800 pharynx Anatomy 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A shell of flexibly pliant material is in peripherally sealed engagement with the inflatable ring portion of a laryngeal mask such that when both the mask ring and the space within the shell are inflated, i.e., after patient installation of the mask in deflated condition, a back cushion is established with large-area self-adapting conformation to the back wall of the pharynx, so that inflation pressure in the back cushion not only positions back contours of the mask per se at offset from the back wall of the pharynx but in addition establishes a large area of uniformly distributed forward pressure on the mask per se, resulting in a pneumatically loaded application of the inflatable ring of the mask, into enhanced sealing conformance to and engagement with the laryngeal inlet.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US003,900 | 1987-01-16 | ||
US07/952,586 US5241956A (en) | 1992-05-21 | 1992-09-28 | Laryngeal mask airway with concentric drainage of oesophagus discharge |
US952,586 | 1992-09-28 | ||
US08/003,900 US5305743A (en) | 1992-03-05 | 1993-02-01 | Artificial airway device |
US08/060,167 US5355879A (en) | 1992-09-28 | 1993-05-07 | Laryngeal-mask construction |
US060,167 | 1993-05-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2107027A1 true CA2107027A1 (en) | 1994-03-29 |
CA2107027C CA2107027C (en) | 1996-11-12 |
Family
ID=27357511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2107027 Expired - Lifetime CA2107027C (en) | 1992-09-28 | 1993-09-27 | Laryngeal mask construction |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2107027C (en) |
-
1993
- 1993-09-27 CA CA 2107027 patent/CA2107027C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2107027C (en) | 1996-11-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |