Deformable high energy storage tension spring
US4301551A · kind A · utility
373Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1979 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Jul 9, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/453
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tension spring capable of large elastic deformation and having a high resistance to breakage and particularly, but not exclusively, for use as an artificial prosthetic ligament. The spring comprises an elongate elastic core having a low modulus of elasticity and defining opposed ends. A tensionable wrapping of thread having a high resistance to breakage is disposed in contact about the core to compress the core and to cause it to elongate axially upon opposite relative axial displacement of opposed ends of the wrapping secured to traction means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.