Roll form medical bandaging product, medical bandage material, method of constructing same, and bandaging method

• US 20020133107A1
• Filed: 01/12/2001
• Published: 09/19/2002
• Est. Priority Date: 01/12/2001
• Status: Active Grant

• Current Assignee: BSN Medical Incorporated (Essity AB)
• Original Assignee: BSN Medical Incorporated (Essity AB)
• Inventors: Darcey, Thomas D.
• Granted Patent: US 6,719,710 B2
• Time in Patent Office: Days
• US Class Current: 602/8
• CPC Class Codes: A61F 13/04 Plaster of Paris bandages; Other stiffening bandages A61F13/06 - A61F13/15 take precedence
• CPC Class Codes: A61F 15/002 dispensers for web or tape like bandages

Abstract

A medical bandaging product in roll form for being dispensed in predetermined lengths suitable for a given medical use, and including an elongate sleeve formed of moisture-impervious material and sealable to prevent entry of moisture, and an elongate medical bandage material substantially the same length as the sleeve and positioned in the sleeve in a single length along the length of the sleeve and sealed therein against entry of moisture until use. The medical bandage material includes a substrate and a reactive system impregnated into or coated onto the substrate. The system remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to sufficient moisture to form a rigid, self supporting structure. A protective liner sheet encloses the substrate along its length and forms a barrier between the substrate and the sleeve during storage, and is optionally removable after removal of the medical bandage material from the sleeve and prior to application to a patient. The substrate is adapted for having a protective padding material interposed between the substrate and the patient.

Claims

1. A medical bandaging product in roll form for being dispensed in predetermined lengths suitable for a given medical use, comprising:

(a) an elongate sleeve formed of moisture-impervious material and sealable to prevent entry of moisture;

(b) an unpadded elongate medical bandage material substantially the same length as the sleeve and positioned in said sleeve in a single length along the length of the sleeve and sealed therein against entry of moisture until use, said medical bandage 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 protective liner sheet enclosing said substrate along its length and forming a barrier between the substrate and the sleeve during storage and optionally removable after removal of the medical bandage material from the sleeve and prior to application to a patient, said substrate adapted for having a protective padding material interposed between the substrate and the patient; and

(c) resealing means for resealing said sleeve against entry of moisture after a predetermined length of said bandaging product has been dispensed for use to prevent hardening of said substrate remaining in said sleeve.

2. A medical bandaging product according to claim 1, wherein said sleeve comprises an aluminum foil laminate having an outer tear resistant layer, a central aluminum foil layer and an inner heat sealable plastic layer.

3. A medical bandaging product according to claim 1, wherein said substrate comprises a plurality of knitted or woven fabric layers.

4. A medical bandaging product according to claim 1, wherein said protective liner sheet enclosing the substrate comprises a fibrous nonwoven material.

5. A medical bandaging product according to claim 4, wherein said protective liner sheet enclosing the substrate comprises a nonwoven polypropylene sheet folded along its longitudinal axis to define an envelope within which said substrate is positioned.

6. A medical bandaging product according to claim 1, wherein said reactive system comprises a blended polyisocyanate, polyol, catalyst and stabilizer.

7. A medical bandaging product according to claim 1, wherein said resealing means for resealing said sleeve is selected from the group consisting of tape, a clamp, and a clip for holding a folded end of the sleeve closed.

8. A medical bandaging product according to claim 1, wherein said roll comprises the sleeve with the medical bandage material therein and the sleeve formed into a coil.

9. A medical bandaging product according to claim 8, and including a dispenser within which the coil of bandaging material is contained.

10. A medical bandaging product according to claim 9, wherein said dispenser comprises a container within which said roll is positioned, said container defining a slot therein in which the leading end of the coil may be positioned and through which the product is dispensed as needed.

11. A medical bandaging product for being packaged in predetermined lengths suitable for a given medical use, comprising:

(a) a sleeve formed of moisture-impervious material and sealable to prevent entry of moisture;

(b) an unpadded medical bandage material positioned in said sleeve and sealed therein against entry of moisture until use, said medical bandage 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 protective liner sheet enclosing said substrate and forming a barrier between the substrate and the sleeve during storage and optionally removable after removal of the medical bandage material from the sleeve and prior to application to a patient, said substrate adapted for having a protective padding material interposed between the substrate and the patient.

15. A method of constructing a medical bandaging product according to claim 14, and including the step of resealing said sleeve against entry of moisture after a predetermined length of said bandaging product has been dispensed for use to prevent hardening of said substrate remaining in said sleeve.

16. A method of constructing a medical bandaging product according to claim 14, and including the step of rolling the elongate sleeve with the medical bandage material therein into a coil.

17. A method of constructing a medical bandaging product according to claim 14, and including the step of packaging the coil in a dispenser.

18. A method of constructing a medical bandaging product according to claim 14, wherein said dispenser comprises a box provided with a slot therein for feeding a desired length of the sleeve therethrough.

20. A method according to claim 17, wherein the step of interposing the padding between the patient and the substrate includes the step of applying the padding to the patient before the substrate is applied to the patient.

21. A method according to claim 17, wherein the step of interposing the padding between the patient and the substrate includes the step of applying the padding to the substrate before application to the patient.

22. A method according to 17, and including the step of overwrapping the padding and substrate with an elastic bandage to maintain the padding and substrate in close conformity with the patient during curing of the moisture-curable resin.

12. A medical bandaging product having a predetermined length suitable for a given medical use, comprising:

(a) an enclosure formed of a moisture-impervious material sealable to prevent entry of moisture, said enclosure including an elongate, resealable dispensing sleeve;

(b) an unpadded medical bandage material positioned in said enclosure and sealed therein against entry of moisture until use, said medical bandage material comprising;

(i) a substrate formed of a plurality of knitted or woven fabric layers;

(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 comprising a blended polyisocyanate, polyol, catalyst and stabilizer;

(iii) a soft, flexible protective nonwoven liner sheet enclosing said substrate along its length to provide a barrier between the substrate and the sleeve within which the medical bandage material is enclosed and adapted for being removed from the substrate after removal from the sleeve and prior to application to the patient; and

(c) said medical bandage material being positioned in said enclosure for being dispensed in a desired use length from said sleeve, said sleeve adapted for being resealed to prevent moisture from entering the enclosure.

13. A method of constructing a medical bandaging product, comprising the steps of:

(a) providing an elongate, moisture-impervious sleeve and an unpadded elongate medical bandage material comprised of a substrate enclosed within a protective liner sheet;

(b) impregnating into or coating onto said substrate a reactive system which remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to sufficient moisture to form a rigid, self-supporting structure;

(c) positioning a length of said elongate medical bandage material within said elongate sleeve which is generally the same length as the sleeve and which extends along the length of the sleeve in a single layer; and

(d) sealing said sleeve to prevent entry of moisture until use.

14. A method of constructing a medical bandaging product, comprising the steps of:

(a) providing a moisture impervious sleeve and an unpadded substrate for being enclosed within a protective liner sheet;

(b) impregnating into or coating onto said substrate a reactive system which remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to sufficient moisture to form a rigid, self-supporting structure;

(c) positioning said coated or impregnated substrate within the protective liner sheet to form a medical bandage material;

(d) positioning a length of said elongate medical bandage material within said elongate sleeve which is generally the same length as the sleeve and which extends along the length of the sleeve in a single layer; and

(e) sealing said sleeve to prevent entry of moisture until use.

19. A method of utilizing a medical bandaging product, comprising the steps of:

(a) providing an elongate sleeve and an unpadded elongate medical bandage material comprised of an unpadded substrate enclosed within a protective liner sheet;

(b) impregnating into or coating onto said substrate a reactive system which remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to sufficient moisture to form a rigid, self-supporting structure;

(c) positioning said elongate medical bandage material within said elongate sleeve;

(e) sealing said sleeve to prevent entry of moisture until use;

(f) removing the medical bandage material from the sleeve immediately prior to use;

(g) optionally removing the liner sheet from the substrate;

(h) wetting the substrate to activate the reactive system;

(i) interposing a padding between the substrate and the patient; and

(j) applying the substrate and interposed padding to the patient.