US3920009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracheostomatic bandage
Assignee: Louis Gibeck AB
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Filing: 1974-06-03
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Granted: 1975-11-18
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Expires: 1994-06-03
Abstract
Abstract A bandage for laryngotomy patients comprises an air inlet portion having an outer fibrous layer consisting of a fibrous material designed and dimensioned to collect particles and bacteria without forming a substantial resistance to the flow of air inhaled therethrough, said inlet portion including an intermediate portion designed and mounted to permit a large surface contact with the inhaled air and made from a material having heat and moisture exchanging properties so that it receives heat and permits condensation of moisture from the expired air and transfers the received heat and moisture to the inhaled air. Said intermediate portion includes further an inner layer with an attachment means shaped to be placed into sealing engagement with the throat of the patient around the stoma and comprising a net located opposite the intermediate portion and of a relatively large width of the meshes and a stiffness suitable to protect the intermediate portion from deformation and preventing also its being sucked in by breathing.
Inventors
- 👤 Jarle Asbjorn Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/047; A61M16/10; A61M16/1045
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
131 words
A bandage for laryngotomy patients who have a tracheostoma, having an air inlet portion comprising: a. an outer fibrous layer, b. an intermediate portion adjacent to said outer fibrous layer, c. said intermediate portion comprising a material having heat and moisture exchanging properties whereby heat and moisture are transferred from exhaled air to inhaled air passing therethrough, d. said intermediate portion having a large surface in contact with the air, e. said intermediate portion engaging an inner layer, f. said inner layer comprising means for sealing said bandage in engagement with the patient''s throat around the stoma so that all breathing air is caused to flow through said bandage, and g. said inner layer comprising separating means for preventing the sucking in of any portion of the bandage by the patient.
Claim 2
Dependent Claim
131 words
A bandage for laryngotomy patients who have a tracheostoma, having an air inlet portion comprising: a. an outer fibrous layer, b. an intermediate portion adjacent to said outer fibrous layer, c. said intermediate portion comprising a material having heat and moisture exchanging properties whereby heat and moisture are transferred from exhaled air to inhaled air passing therethrough, d. said intermediate portion having a large surface in contact with the air, e. said intermediate portion engaging an inner layer, f. said inner layer comprising means for sealing said bandage in engagement with the patient''s throat around the stoma so that all breathing air is caused to flow through said bandage, and g. said inner layer comprising separating means for preventing the sucking in of any portion of the bandage by the patient.
Claim 3
Dependent Claim
14 words
A bandage as recited in claim 1 wherein said separating means comprises a net.
Claim 4
Dependent Claim
63 words
A bandage as recited in claim 1 wherein: a. said intermediate portion is cylindrical in shape, b. a jacket is provided enveloping said intermediate portion, c. said outer and inner layers are attached to each other at a point spaced apart from said jacket, and d. a ring of elastically yieldable material is placed in the space between said jacket and said layers.
Claim 5
Dependent Claim
39 words
A bandage as recited in claim 3 wherein: a. said inner layer comprises a foil having a hole therein for adhesive application to the patient''s throat, and b. said separating means is mounted onto said foil covering the hole.
Claim 6
Dependent Claim
35 words
A bandage as recited in claim 4 wherein said foil comprises a soft and flexible material whereby the skin below the foil is permitted some movement, and abrasion below or around the foil is prevented.
Claim 7
Dependent Claim
83 words
A bandage as recited in claim 3 wherein: a. said inner layer comprises a foil and a shield, said foil being attached to said shield by a binder, b. said shield has an annular cushion mounted thereon, said cushion being of a height such as to engage the throat Of the patient around the stoma when said bandage is applied, and c. a band of elastic material in contact with said shield and the patient''s neck maintains said shield in a preselected position.
Claim 8
Dependent Claim
81 words
A bandage as recited in claim 6 wherein: a. said intermediate portion projects into a hole in said shield, b. said band is inserted through two holes in said shield, and c. said foil has a tapering shape so that it is free from engagement with the holes for said band when used and so that alternatively it may be directly applied to the throat of the patient with the tapering portion thereof projecting between the collar bones of the patient.
Claim 9
Dependent Claim
106 words
A bandage as recited in claim 7 wherein: a. the hole provided in said shield for said intermediate portion is located substantially below the center of said shield when mounted in the operative position on the patient''s throat, b. the holes provided in said shield for said band are located above the center of said shield and adjacent two opposite edges thereof, c. said band is mounted over the portions of said shield between said holes for said band and the outer edge closest thereto and under the portion of said shield between said holes for said band, whereby lever action is applied to said shield.
Claim 10
Dependent Claim
34 words
A bandage according to claim 7, wherein the shield is made of a plastic material having relatively low flexibility properties and may permit some deformation if subjected to a temperature in excess of 37*C.
Claim 11
Dependent Claim
33 words
A bandage according to claim 9, wherein the annular cushion of the shield comprises a plastic foam or a rubber foam covered with an outer layer of a material gentle to the skin.
Claim 12
Dependent Claim
28 words
A bandage according to claim 9, wherein the annular cushion of the shield comprises a thin plastic foil filled with a gas that has a relatively low pressure.
Claim 13
Dependent Claim
17 words
A bandage according to claim 11, wherein said separating means constitutes an integral portion of the shield.
Claim 14
Dependent Claim
20 words
A bandage according to claim 12, wherein the intermediate portion comprises a corrugated cardboard material rolled into a helical shape.
Claim 15
Dependent Claim
17 words
A bandage recited in claim 12 wherein said outer fibrous layer comprises a fabric of non-woven tissue.
Claim 16
Dependent Claim
17 words
A bandage as recited in claim 12 wherein said outer fibrous layer comprises a glass fiber fabric.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |