Oval dilator and retractor set and method
US7074226B2 · kind B2 · utility
165Cited by
22References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Jul 11, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3447
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Access to a greater area of surgical site with minimally invasive procedure is obtained by using two sets of sequentially placed tissue dilators oriented with their axes in a plane parallel to the spinal axis and a final non-circular dilator encompassing the two sets, followed by a non-circular tubular retractor providing a working channel extending longitudinally of the spine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.