Treatment device
US9352173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Jan 22, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A treatment device includes a treatment portion, a transmission portion and a moment shift portion. The treatment portion transmits ultrasonic vibration. The length of the treatment portion is shorter than ¼ of a wavelength of the ultrasonic vibration. The transmission portion has one end at a node position where the first generated node from the distal end of the treatment portion appears, and is located closer to a proximal side than the node position. The length of the transmission portion is ¼ of the wavelength. The moment shift portion is located between the treatment portion and the transmission portion. An average of I1/A12 is greater than an average of I2/A22, where I1 is the second moment of area and A1 is a sectional area in the treatment portion, and I2 is the second moment of area and A2 is a sectional area in the transmission portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.