Trephines features a quick-lock structure for attachment to a handle, allowing for the use of various gauges of ring saws. These trephines are employed during surgery to perform laminotomy or to expand the intervertebral foramen. This process is essential for establishing an endoscopic channel, enabling surgeons to access and treat the affected spinal disc with precision and efficiency.
Cutting edge of the trephine has hardening coating, higher hardness and stronger cutting ability, is not easy to roll and more wear-resistant.
| Working Length(mm） | Working Diameter(mm) |
| 335 | 3.5 |
| 210 | 5.0 |
| 210 | 6.5 |
| 210 | 7.5 |
By combining with the handle through a quick-lock structure, various gauges of ring saws are used in conjunction with other tools during surgery for laminotomy or intervertebral foramen expansion, establishing an endoscopic channel.
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