Tissue removal device for neurosurgical and spinal surgery applications
US8430825B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2008 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Jul 12, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0811
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue cutting device that is especially suited for neurosurgical applications is disclosed and described. The device includes a handpiece and an outer cannula in which a reciprocating inner cannula is disposed. The inner cannula includes a hinge between a body section and a cutting section that allows the cutting section to pivot when the inner cannula reciprocates within the outer cannula. A tissue collector is also provided and is in fluid communication with the lumen of the inner cannula. The inner cannula reciprocates at a rate that is greater than 1000 reciprocations per minute, and variable aspiration may also be provided to the device to control tissue traction and provide fine shaving and debulking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.