Ultrasonic hand piece and ultrasonic horn for use with the same
US6497715B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Dec 24, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320073
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The purpose of the present invention is to eliminate the various problems which can be presented by the scalpel portion of an ultrasonic hand piece for cutting a bone or other hard tissue making an excessive sting into the cut site, and allow precisely controlling the movement of the scalpel portion in a wide field of view for precision cutting of a bone or other hard tissue to achieve the purpose of the medical treatment.The ultrasonic hand piece according to the present invention comprises a casing for accommodating an ultrasonic vibration mechanism, and a horn which is mounted at one end of the casing for cutting a bone or other hard tissue by the vibration transmitted from said ultrasonic vibration mechanism, said horn comprising a main body portion and a scalpel portion which is formed at the tip of this main body portion for cutting a bone or other hard tissue, and in the end portion of the scalpel portion being formed a working portion which comprises at least one face portion for eliminating the stress concentration into the object site of a bone or other hard tissue to prevent excessive sting while transmitting a vibration for forming a finely fractured layer, and an edge …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.