| 摘要 |
PCT No. PCT/GB91/00461 Sec. 371 Date Sep. 29, 1992 Sec. 102(e) Date Sep. 29, 1992 PCT Filed Mar. 27, 1991 PCT Pub. No. WO91/15165 PCT Pub. Date Oct. 17, 1991.A hand held device for injecting a fluid (such as a vaccine) or an object (such as a transponder) beneath the skin of an animal, the device comprising a mounting (2) for receiving a conventional hypodermic syringe (5,6,7), a weight (7) (which may be part of the plunger fitted within the syringe) for acting on the plunger (7) of the syringe and a slapping plate (3), being arranged so that when the device is swung into contact with an animal so the needle (6) of the hypodermic syringe pierces the animal's skin and the device is brought to a sudden halt as the plate (3) slaps against the animal, the momentum of the weight (7) acts to push the plunger (7) into the syringe and so propels the fluid or object held therein into the animal.
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