Orthopedic casts with controlled flexibility
US6673727B2 · kind B2 · utility
1Cited by
30References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Nov 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/698
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthopedic casting material comprising a substrate impregnated with a water-curable resin comprising an aromatic polyisocyanate and a polyol, wherein the free NCO level of said prepolymer is from about 6% to about 10%. Preferably the free NCO level is from about 7% to about 8%. Preferably the polyol has a molecular weight of at least 2,000, and a hydroxyl number of from about 28 to about 56, preferably from about 35 to about 40. The casting material may be packaged as a kit with a casting aid comprising a substrate impregnated with a lubricating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.