| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a medical instrument in which a small diameter of an endoscope body can be achieved, and an end of an endoscope can be inserted quickly and safely into an objective section. <P>SOLUTION: The medical instrument 10 includes: a puncture needle 8; an endoscope 1 inserted in a lumen of the puncture needle 8 to move in an axial direction; and a coil spring 15 which biases the endoscope 1 to a tip direction to the puncture needle 8. The endoscope 1 includes: an endoscope body 2; an imaging element 3; and a light guide 5. The light guide 5 is inserted in a light guide lumen 21 to move in an axial direction. At an end of the endoscope body 2, a side hole 22 which opens to a side thereof, and communicates to an end of the light guide lumen 21 is formed. Thereby, the light guide 5 is moved to an axial direction, thereby the endoscope 1 can take the condition that an end of light guide 5 projects from the side hole 22, and the condition that the end thereof is contained in the endoscope body 2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
