Cement-directing orthopedic implants
US8100973B2 · kind B2 · utility
10Cited by
75References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Apr 23, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0023
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cement-directing structure for use in cement-injection bone therapy includes a collapsible, self-restoring braided structure with regions of differential permeability to the bone cement. The regions of differential permeability may be provided by areas where the braided mesh density is greater or lesser than surrounding areas and/or by means of a baffle. After the structure is placed in a void within a bony structure, cement is injected into the interior of the structure then oozes out in preferred directions according to the locations of the regions of differential permeability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.