Spinous process staple with interdigitating-interlocking hemi-spacers for adjacent spinous process separation and distraction
US9675385B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2011 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | May 4, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A Spinous Process (SP) staple including a top claw, a bottom claw, a staple pin pivotally connecting the top claw and the bottom claw, a ratchet mechanism that limits an opening force of the top claw with respect to the bottom claw, a first hemi-spacer positioned on the top claw and a second hemi-spacer positioned on the bottom claw. Upon the stapling of two adjacent spinous processes, the SP staple claws approximate, and the first and second hemi-spacers interdigitate, interlock, and unite to become a single interspinous process spacer which can be wedged between two adjacent spinous processes. Adjacent spinous process separation and/or distraction leading to spinal canal decompression and alleviation of the symptoms of spinal stenosis are accomplished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.