| 摘要 |
<p>In an injection and suction appts. for use with syringes and flasks operated under press., the skin is raised by suction during the injection to avoid damage to veins and nerves. The oblique posn. of the releasable pins leaves them in the suction space and guarantees a symmetrical contact with the skin. The filled syringe is placed in posn. on a ring of rubber and the clamp attached to the end of the piston rod. This clamp is fixed to a fork moving on the support pillar, against a spring. The sequence of operations is started by a movement of the lever. The appts. is partic. compact; it makes a satisfactory contact with the skin at three points in the suction area.</p> |
