Medical treatment apparatus utilizing ultrasonic wave

Patent 4867141 Issued on September 19, 1989. Estimated Expiration Date:

June 12, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3805787

3830240

3927675

Ultrasonic probe
Patent #: 4169984
Issued on: 10/02/1979
Inventor: Parisi

Device for crushing calculi in the urinary bladder
Patent #: 4227532
Issued on: 10/14/1980
Inventor: Bluhm , et al.

Ultrasonic resonant vibrator
Patent #: 4425115
Issued on: 01/10/1984
Inventor: Wuchinich

Vented ultrasonic transducer for surgical handpiece Patent #: 4741731
Issued on: 05/03/1988
Inventor: Starck , et al.

Inventors

Assignee

Olympus Optical Co., Ltd.

Application

No. 07/061862 filed on 06/12/1987

US Classes:

601/4, Contact-free comminution of concretion604/22With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue

Examiners

Primary: Hindenburg, Max
Assistant: Getzow, Scott M.

Attorney, Agent or Firm

Frishauf, Holtz, Goodman & Woodward

International Classes

A61B 17/22 (20060101)
B06B 3/00 (20060101)
A61B 17/32 (20060101)
A61B 18/00 (20060101)
A61M 1/00 (20060101)
A61B 17/00 (20060101)

Foreign Application Priority Data

1986-06-18 JP

Abstract

A medical treatment apparatus utilizing ultrasonic waves according to this invention is applied to treatments such as breaking up a stone formed in a living body. The medical treatment apparatus utilizing ultrasonic waves includes a vibration generator (10) for generating ultrasonic vibrations and a vibration transmission member (16) for transmitting the ultrasonic vibrations generated by the vibration generator (10). The vibration transmission member (16) has a front end portion and a proximal end portion which is mounted on the vibration generator (10). The medical treatment apparatus further includes a cover member (20) for surrounding the outer surface of the vibration transmission member (16) and an exposing member (21) for exposing the distal end portion of the vibration transmission member (16) outside the cover member (20). When the vibration transmission member (16) is inserted into an endoscope channel and a body cavity, the distal end of vibration transmission member (16) does not damage them since the distal end is sealed with the cover (20).