Title:
ULTRASONIC ROOT CANAL THERAPEUTIC UNIT WITH ROOT CANAL LENGTH MEASURING FUNCTION
Document Type and Number:
Japanese Patent JP3113097
Kind Code:
B2
Abstract:
PURPOSE: To provide a device having both functions of root canal length measurement and ultrasonic root canal therapy and good operability.
CONSTITUTION: A root canal length measuring circuit 9 is provided with an electric filter 29 removing the effect of ultrasonic vibrations. The root canal length measurement can be made without hindrance and without being affected by the noises from the driving circuit of a ultrasonic vibrator, and the ultrasonic output can easily be controlled by means of the measured result.
Inventors:
Kazunari Matoba
Minoru Imazato
Minoru Imazato
Application Number:
JP25416292A
Publication Date:
November 27, 2000
Filing Date:
August 27, 1992
Export Citation:
Assignee:
Morita Manufacturing Co., Ltd.
International Classes:
A61C5/04; A61C19/04; (IPC1-7): A61C19/04; A61C5/04
Domestic Patent References:
| JP3148032A | ||||
| JP298913U | ||||
| JP59188407U | ||||
| JP5936318U | ||||
| JP215113U | ||||
| JP59169813U |
Attorney, Agent or Firm:
Minoru Shinoda