Implantable bone lengthening apparatus
US5626581A · kind A · utility
86Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Nov 27, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00867
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable bone lengthening apparatus may utilize an entirely self-contained lengthening mechanism which includes a shape memory material-powered hydraulic pump, a shape memory material-powered ratchet mechanism, a permeable head piston mechanism, and a bellows extension mechanism. The bone lengthening nails are more compact, simpler, eliminate unnecessary shifting or torsional movement, and maintain alignment of the bone during its natural healing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.