| 摘要 |
<p>PROBLEM TO BE SOLVED: To make blood to smoothly and easily flow without stagnation in the state of inserting a sensor for insertion to a blood vessel into a blood vessel. SOLUTION: In electric connection work to be executed in the state of placing a chip support 2 on a tool, a double positioning plane 19 to achieve the turn stopping function of the chip support 2 to the tool is surrounded with an outer peripheral arcuate face 20 of the chip support 2 and extended in the direction of the axial line of the chip support 2. A surrounding boundary plane 21 between the outer peripheral arcuate plane 20 of the chip support 2 and the double positioning plane 19 has lengthwise both boundary planes 22 and 23 mutually confronted on both the sides in a cross-wise direction orthogonal to the direction of the axial line and cross-wise both boundary planes 24 and 25 mutually confronted on both the sides in the direction of the axial line. The positioning plane 19, the respective boundary planes 22, 23, 24 and 25 and the outer peripheral arcuate plane 20 are mutually continued so that the lengthwise both boundary planes 22 and 23 and the cross-wise both boundary planes 24 and 25 can form an obtuse angleθ(90 deg.<θ) to the positioning plane 19. Only the cross-wise double boundary planes 24 and 25 are inclined to the positioning plane 19 and step-shaped.</p> |
