| 摘要 |
<p>A reciprocating saw for use in intraoral bone surgery particularity mandibular angle resection, in which the saw consists of a handle (1), a neck (2) extended from the handle (1), and a head case (3) to be coupled to an end of the neck (2), a motor (4) is mounted inside of the handle (1), a slider shaft (5) is mounted inside of the head case (3) to form an angle of approximately 90° with respect to the neck (2), a slider (6) which moves straight linear reciprocatingly along the slider shaft (5) is mounted, and the slider (6) and a motor (4) are coupled by a power linkage device (7) for converting rotation power of the motor (4) to a straight linear reciprocating movement of slider (6) and transmitting the converted movement, whereby direction of bone cutting performed by a saw member or a file member attached to the slide (6) forms an angle of approximately 90° with respect to an approach direction of the handle (1). Therefore it provides a significantly high efficiency in mandibular angle resection or other intraoral bone surgery since easily performed in a narrow space, ensuring a wide field of view. In addition, a portion like an upper cutoff portion of mandible angle to which a conventional saw has a difficulty in approaching, can be easily approached and cutoff.</p> |
