Cement delivery needle
US6749595B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8811
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cement delivery needle for use in performing vertebroplasty is provided. In one embodiment, there is provided a cement delivery needle with a sheath and an insert. The sheath has an inlet to receive a bone cement and a tapered outlet for expressing the cement into a vertebral body. The insert is receivably removable within the sheath. The insert also has a tip that is alignable with the outlet, when the insert is inserted into the sheath, to present a continuous edge. When the edge is inserted into a resistant material, an application of force to the needle creates an opening in the material to allow the needle to pass therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.