Soft cast material
View Patent ↗A medical bandaging product, including a package formed of a moisture-impervious material and sealable to prevent entry of moisture. A medical bandage is positioned within the package in substantially moisture-free conditions and sealed therein against moisture until use. The medical bandage is constructed of a fabric having a pair of opposed, major surfaces and a reactive system impregnated into or coated onto the fabric. The reactive system remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to sufficient moisture to form a self-supporting structure having an immobilization value of less than about 43. The fabric is preferably knitted.
1. A medical bandaging product, comprising:
(a) a package formed of a moisture-impervious material and sealable to prevent entry of moisture;
(b) a medical bandage positioned within the package in substantially moisture-free conditions and sealed therein against moisture until use, the medical bandage comprising:
(i) a fabric having a pair of opposed, major surfaces; and
(ii) a reactive system impregnated into or coated onto the fabric, the system remaining stable when maintained in substantially moisture-free conditions and hardening upon exposure to sufficient moisture to form a self supporting structure having an immobilization value of less than about 43 pounds.
2. A medical bandaging product according to claim 1 , wherein the fabric comprises a knitted fabric.
3. A medical bandaging product according to claim 1 , wherein the fabric comprises a knitted fabric fabricated from high tenacity polyester and high-tenacity polypropylene yarns.
4. A medical bandaging product according to claim 3 , wherein the fabric includes an elastic yarn.
5. A medical bandaging product according to claim 1 , 2 , 3 or 4 , wherein the medical bandage comprises a rolled elongate tape.
6. A medical bandaging product according to claim 1 , wherein the immobilization value is between about 30 and 43 pounds.
7. A medical bandaging product according to claim 1 , wherein the medical bandage is fabricated from high tenacity polypropylene, high tenacity polyester and an elastic yarn.
8. A medical bandaging product according to claim 7 , wherein the high tenacity polypropylene yarn comprises 470 Dtex yarn, the high tenacity polyester yarn comprises 280 Dtex yarn and the elastic yarn comprises 70 Dtex uncovered Elastane.
9. A medical bandaging product according to claim 1 , wherein the reactive system comprises a blended polyisocyanate, polyol, catalyst and stabilizer.
10. A medical bandaging product according to claim 9 , wherein the polyol comprises a 55 percent by weight polyol blend.
11. A medical bandaging product according to claim 1 , wherein the medical bandage has a reactive system add-on of between about 50 and 56 percent by weight.
12. A cast tape, comprising:
(a) an elongate bandage for being positioned within a package in substantially moisture-free conditions and sealed therein against moisture until use, the bandage comprising:
(i) a fabric having a pair of opposed, major surfaces; and
(ii) a reactive system impregnated into or coated onto the fabric, the system remaining stable when maintained in substantially moisture-free conditions and hardening upon exposure to sufficient moisture to form a self supporting structure having an immobilization value of less than about 43.
13. A cast tape according to claim 12 , wherein the fabric comprises a knitted fabric.
14. A cast tape according to claim 12 , wherein the fabric comprises a knitted fabric fabricated from high tenacity polyester and high-tenacity polypropylene yarns.
15. A cast tape according to claim 14 , wherein the fabric includes an elastic yarn.
16. A cast tape according to claim 12 , 13 , 14 or 15 , wherein the cast tape is formed into a roll.
17. A cast tape according to claim 12 , wherein the immobilization value is between about 30 and 43.
18. A cast tape according to claim 12 , wherein the cast tape is fabricated from high tenacity polypropylene, high tenacity polyester and an elastic yarn.
19. A cast tape according to claim 18 , wherein the high tenacity polypropylene yarn comprises 470 Dtex yarn, the high tenacity polyester yarn comprises 280 Dtex yarn and the elastic yarn comprises 70 Dtex uncovered Elastane.
20. A cast tape according to claim 12 , wherein the reactive system comprises a blended polyisocyanate, polyol, catalyst and stabilizer.
21. A cast tape according to claim 20 , wherein the polyol comprises a 55 percent by weight polyol blend.
22. A cast tape according to claim 12 , wherein the medical bandage has a reactive system add-on of between about 50 and 56 percent by weight.