| 发明名称 |
ENDOSCOPE APPARATUS |
| 摘要 |
An endoscope apparatus includes: an insertion portion; an insertion assisting mechanism portion that is provided on an outer circumference of the insertion portion and is rotatable in a first rotational direction, or a second rotational direction that is the opposite direction to the first rotational direction; a drive portion that generates a driving force for causing the insertion assisting mechanism portion to rotate; a drive shaft that can be rotated by a driving force of the drive portion, and with respect to which a torsional rigidity in a fourth rotational direction that is an opposite direction to a third rotational direction is set so as to be higher than a torsional rigidity in the third rotational direction; and a drive mechanism portion that, by means of the drive shaft rotating in the fourth rotational direction, causes the insertion assisting mechanism portion to rotate in the first rotational direction. |
| 申请公布号 |
US2014298932(A1) |
申请公布日期 |
2014.10.09 |
| 申请号 |
US201414277243 |
申请日期 |
2014.05.14 |
| 申请人 |
OLYMPUS MEDICAL SYSTEMS CORP. |
发明人 |
OKAMOTO Yasuhiro |
| 分类号 |
F16H19/06 |
主分类号 |
F16H19/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An endoscope apparatus comprising:
an insertion portion to be inserted into a subject; an insertion assisting mechanism portion that is provided on an outer circumference of the insertion portion and is rotatable in a first rotational direction for advancing the insertion portion inside the subject, or a second rotational direction that is an opposite direction to the first rotational direction and is a direction for retracting the insertion portion towards outside of the subject; a drive portion that generates a driving force for causing the insertion assisting mechanism portion to rotate with respect to the insertion portion; a drive shaft that can be rotated by a driving force of the drive portion, and a torsional rigidity of the drive shaft in a fourth rotational direction that is an opposite direction to a third rotational direction is set so as to be higher than a torsional rigidity in the third rotational direction; and a drive mechanism portion that, by means of the drive shaft rotating in the fourth rotational direction, causes the insertion assisting mechanism portion to rotate in the first rotational direction. |
| 地址 |
Tokyo JP |
