Patent US4869046A successfully refreshed from Google Patents.
US4869046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll form medical bandaging product and method of constructing same
Assignee: BSN Medical Inc
•
Filing: 1988-09-12
•
Granted: 1989-09-26
•
Expires: 2008-09-12
Abstract
Abstract A medical bandaging product (b 10) is rolled into a coil and positioned in a dispenser (11). Bandaging product (10) includes an outer elongate sleeve (13) formed of a moisture-impervious material and heat sealed along opposite, parallel extending sides to form an elongate tube. A medical material (14) is positioned within sleeve (13) and includes a substrate (16) formed of a suitable number of overlaid layers of a woven or knitted fabric such as fiberglass. Substrate (16) is contained within a tubular wrapping (18) formed of a soft, flexible non-woven fiber such as polypropylene. Substrate (16) is impregnated or coated with a reactive system which remains stable when maintained in substantially moisture-free conditions but which hardens upon exposure to sufficient moisture to form a rigid, self-supporting structure.
Inventors
- 👤 A. Bruce Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:59
CPC Classifications
A; A61; A61F; A61F15/00; A61F15/001; A61F15/002; A61F13/00; A61F13/04; A61L; A61L15/00; A61L15/07
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
239 words
A method of constructing a medical bandaging product comprising the steps of: (a) providing an elongate sleeve formed of a predetermined length formed of moisture-impervious material and sealable to prevent entry of moisture; (b) providing an elongate medical material having substantially the same predetermined length as said elongate sleeve; (c) positioning said medical material in a single layer which coextends with the sleeve in substantially moisture-free conditions and sealing said medical material in said sleeve against entry of moisture until use, said medical material comprising: (i) a substrate; (ii) a reactive system impregnated into or coated onto said substrate, said system remaining stable when maintained in substantially moisture-free conditions and hardening upon exposure to sufficient moisture to form a rigid, self supporting structure; and (iii) a soft, flexible protective wrapping enclosing said substrate along its length to provide a cushioning barrier between the substrate and the skin of a patient when the material is in use; whereby a desired length of said medical material is removable from the length of bandaging product by severing the medical material and the sleeve at a desired point without removing additional excess medical material from the sleeve whereby the sleeve and medical material form a continuum of elongate bandaging product and whereby said sleeve is sealable against entry of moisture after a desired length of said medical material has been dispensed for use to prevent hardening of said substrate remaining in said sleeve.
Claim 2
Independent Claim
239 words
A method of constructing a medical bandaging product comprising the steps of: (a) providing an elongate sleeve formed of a predetermined length formed of moisture-impervious material and sealable to prevent entry of moisture; (b) providing an elongate medical material having substantially the same predetermined length as said elongate sleeve; (c) positioning said medical material in a single layer which coextends with the sleeve in substantially moisture-free conditions and sealing said medical material in said sleeve against entry of moisture until use, said medical material comprising: (i) a substrate; (ii) a reactive system impregnated into or coated onto said substrate, said system remaining stable when maintained in substantially moisture-free conditions and hardening upon exposure to sufficient moisture to form a rigid, self supporting structure; and (iii) a soft, flexible protective wrapping enclosing said substrate along its length to provide a cushioning barrier between the substrate and the skin of a patient when the material is in use; whereby a desired length of said medical material is removable from the length of bandaging product by severing the medical material and the sleeve at a desired point without removing additional excess medical material from the sleeve whereby the sleeve and medical material form a continuum of elongate bandaging product and whereby said sleeve is sealable against entry of moisture after a desired length of said medical material has been dispensed for use to prevent hardening of said substrate remaining in said sleeve.
Claim 3
Dependent Claim
38 words
A method of constructing a medical bandaging product according to claim 1, wherein said sleeve comprises a aluminum foil laminate having an outer tear resistant layer, a central aluminum foil layer and an inner heat sealable plastic layer.
Claim 4
Dependent Claim
24 words
A method of constructing a medical bandaging product according to claim 1, wherein said substrate comprises a plurality of knitted or woven fabric layers.
Claim 5
Dependent Claim
24 words
A method of constructing a medical bandaging product according to claim 1, wherein said protective wrapping enclosing the substrate comprises a fibrous nonwoven cushion.
Claim 6
Dependent Claim
24 words
A method of constructing a medical bandaging product according to claim 4, wherein said protective wrapping enclosing the substrate comprises a nonwoven polypropylene tube.
Claim 7
Dependent Claim
24 words
A method of constructing a medical bandaging product according to claim 1, wherein said reactive system comprises a blended polyisocyanate, polyol, catalyst and stabilizer.
Claim 8
Dependent Claim
42 words
A method of constructing a medical bandaging product according to claim 1 and including the step of resealing the sleeve after use of a length of the medical material by using a moisture-impervious tape to seal the open end of the sleeve.
Claim 9
Dependent Claim
30 words
A method of constructing a medical bandaging product according to claim 1, wherein the step of providing said sleeve includes the step of rolling the sleeve into a roll form.
Claim 10
Dependent Claim
29 words
A method of constructing a medical bandaging product according to claim 8, and including the step of providing a dispenser within which the coil of bandaging material is contained.
References Cited (Backward Citations)
US3557156A
Cited
US3900024A
Cited
US3923049A
Cited
US4411262A
Cited
US4411262B1
Cited
US4235228A
Cited
US4502479A
Cited
US4442833A
Cited
US4570622A
Cited
US4598528A
Cited
US4676861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-25 | 1993-03-27 | 1993-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-25 | 1997-03-27 | 1997-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-25 | 2001-03-27 | 2001-09-26 | $7700.00 | Window Closed / Lapsed |