| 摘要 |
<p>The present invention relates to a method for controlling the introduction depth of an injection needle (1) which is mounted inside a needle introduction device (17, 18) so as to be capable of axial displacement relative to an injection device (12) coupled to said needle introduction device or arranged in the same. The maximal possible run of the injection needle (1) is set to a value H and can be shortened using a cylindrical hollow spacing member (21) which can be concentrically mounted about said injection needle (1). Since the maximal possible run (H) of the injection needle can be shortened using the spacing member (21), it is thus possible to obtain a penetration depth of variable range. To this end, it is possible to use a series of spacing members (21) having different axial lengths (x) or a spacing member which can be screwed in a front position. The cylindrical hollow spacing member (21), which is concentrically mounted about the injection needle (1), is easy to press down to the chosen introduction depth into the needle introduction device (17, 18) presently used as it is clicked in or screwed in a front position.</p> |
