Medical instrument for treating sinusitis

• US 5,496,338 A
• Filed: 06/16/1994
• Issued: 03/05/1996
• Est. Priority Date: 06/29/1993
• Status: Expired due to Fees

• Current Assignee: Machida Endoscope Co., Ltd.
• Original Assignee: Machida Endoscope Co., Ltd.
• Inventors: Miyagi, Kunihiko, Yoshizawa, Hidetoshi
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): MULCARE, NANCY C
• Application Number:
  US08/260,828
• Time in Patent Office: 628 Days
• Field of Search: 606/162, 606/159, 606/80, 606/84-85, 15/23, 604/95, 128/756
• US Class Current: 606/162
• CPC Class Codes: A61B 17/24 for use in the oral cavity, larynx, bronchial passages or nose for medical inspection of cavities or tubes in the body A61B1/00; Tongue scrapers
• CPC Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• CPC Class Codes: A61B 2017/320012 Brushes

Abstract

A medical instrument for treating sinusitis has a body, an insert tube extending from a distal end of the body, and an angle portion extending from a distal end of the insert tube. The angle portion is bent by a remote control member mounted on the body, through a wire. A motor is mounted on the body. The medical instrument also has a brush. This brush has an elongated rotation transmission portion extending through the insert tube and the angle tube, and a brush portion attached to a distal end of the rotation transmission portion. A basal portion of the rotation transmission portion is connected to the motor. The brush portion is allowed to protect from a distal end of the angle tube. At least that portion of the rotation transmission portion extending through the angle tube is bendable. Therefore, when the motor is rotated in the state that the angle portion is bent, the brush portion is rotated.

Claims

1. A medical instrument for treating sinusitis, comprising:

(a) a body;

(b) an insert tube extending from said body;

(c) an angle tube extending from a distal end of said insert tube;

(d) a remote control member mounted on said body and adapted to remotely control said angle tube through a control wire extending through said insert tube and said angle tube;

(e) a motor mounted on said body; and

(f) a brush having an elongated rotation transmission portion whose rear end is connected to said motor, and a brush portion attached to a distal end of said rotation transmission portion, said rotation transmission portion being allowed to extend through said insert tube and said angle tube, at least that portion of said rotation transmission portion corresponding to said angle tube being bendable, said brush portion being allowed to project outside from a distal end of said angle tube; and

said angle tube being remotely controlled by said remote control member to be bent so that an angle between said brush portion and said insert tube is adjusted.

2. A medical instrument according to claim 1, in which said rotation transmission portion is provided on a basal end side thereof with a hard portion formed of a rod, said hard portion being connected to said motor.

3. A medical instrument according to claim 2, further comprising connecting mechanism for removably connecting said hard portion of said brush to a rotating shaft of said motor.

4. A medical instrument according to claim 1, in which said body is provided with a switch control portion for starting rotation of said motor.

5. A medical instrument according to claim 1, further comprising an arm whose distal end portion is rotatably mounted on said body through a connecting mechanism such that rotational position of said arm is adjustable, said remote control member being rotatably mounted on a rear end portion of said arm, said control wire being allowed to extend backwardly along said arm, a rear end portion of said control wire being in association with said remote control member.

6. A medical instrument according to claim 1, in which said body includes a grip portion and an extension portion extending from one end of said grip portion in a direction intersecting said grip portion, thereby forming a gun-like configuration as a whole, said body being provided with a trigger portion, said trigger portion being provided as a switch control portion for starting rotation of said motor, a distal end portion of an arm being rotatably mounted on a side surface of said extension portion of said body through a connecting mechanism such that rotational position of said arm is adjustable, said remote control member being rotatably mounted on a rear end portion of said arm, said control wire being allowed to extend backwardly along said arm, a rear end portion of said control wire being in association with said remote control member.