Tissue cutter with differential hardness
US9095366B2 · kind B2 · utility
69Cited by
201References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2009 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Jul 11, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2217/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a tubular cutting element for axial reciprocal movement within an outer tubular sleeve. The cutting element has an elongate tubular body, having a proximal end, a distal end and a cutting tip. The tubular body is formed in a drawing operation and the cutting tip is formed in a milling operation. The tubular body may have a Rockwell C hardness of no more than about 40, and the cutting tip may have a Rockwell C hardness of at least about 50.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.