CA2107027A1 - Laryngeal Mask Construction - Google Patents

Laryngeal Mask Construction

Info

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
Application number
CA 2107027
Other languages
French (fr)
Other versions
CA2107027C (en
Inventor
Archibald Ian Jeremy Brain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laryngeal Mask Co Ltd
Original Assignee
Archibald Ian Jeremy Brain
The Laryngeal Mask Company Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/952,586 external-priority patent/US5241956A/en
Priority claimed from US08/003,900 external-priority patent/US5305743A/en
Priority claimed from US08/060,167 external-priority patent/US5355879A/en
Application filed by Archibald Ian Jeremy Brain, The Laryngeal Mask Company Limited filed Critical Archibald Ian Jeremy Brain
Publication of CA2107027A1 publication Critical patent/CA2107027A1/en
Application granted granted Critical
Publication of CA2107027C publication Critical patent/CA2107027C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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.
CA 2107027 1992-09-28 1993-09-27 Laryngeal mask construction Expired - Lifetime CA2107027C (en)

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)

Also Published As

Publication number Publication date
CA2107027C (en) 1996-11-12

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Legal Events

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