| 摘要 |
<p>The invention relates to a method and apparatus for injecting material into a substrate. The apparatus (10) comprises a needle assembly having a needle (14), a movable central portion (26) and a substantially stationary top portion (28). The material to be injected (17) is threaded through apparatus (10) into the needle (14), and is cut to the desired length by a cutter (18). When the needle (14) penetrates a substrate, an additional portion of the material (17) is fed into the apparatus (10) and when the needle (14) is removed from substrate (12), the additional material pushes into needle (14), forcing cut portion (16) to remain in the substrate. In the method of using the apparatus, additional steps for orienting the angle of the apparatus, and steps of controlling the concentration of the injected material in the substrate may be included. <IMAGE></p> |
