Cannulated trephine
US12023047B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2023 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Jul 14, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320056
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A trephine may be used to form a tunnel through bone and/or cartilage. The trephine may have a trephine body with a generally tubular shape centered on a trephine body longitudinal axis, and a trephine body distal rim. The trephine may also have a drive shaft that receives torque and transmits the torque to the trephine body. The trephine body distal rim may lie substantially in a plane that is non-perpendicular to the trephine body longitudinal axis. The trephine may further have a cutting tooth extending distally from the trephine body distal rim. The cutting tooth may have a first distal tip and a second distal tip displaced circumferentially from the first distal tip. The trephine may be advanced while rotating to form the tunnel through bone and a first, adjacent cartilage surface of a joint, without breaching a second cartilage surface on the opposite side of the joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.