Method of mixing bone cement with a power tool including monitoring the mixing of the cement based on data regarding characteristics of components forming the cement and the current drawn by the power tool
US8657482B2 · kind B2 · utility
1,217Cited by
36References
14Claims
0Family size
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Key dates
| Filing date | Nov 12, 2009 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jan 26, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F35/332
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for mixing bone cement. The components forming the cement are contained in a cartridge. A motorized device, such as a surgical handpiece, rotates a blade in the cartridge that mixes the cement. The current drawn by the motor is monitored. The current draw is evaluated to determine the viscosity of the cement. If the current draw indicates that the cement is at the target viscosity, the mixing may be terminated. A low current draw measure may be interpreted as an indication that the cement is of low viscosity and that it may be necessary to continue the mixing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.