| 摘要 |
Injection apparatus comprising a housing containing an injection needle mounted for guided movement from a parked position to an operative position, a detachable marker unit mounted to said housing and so positioned that said needle passes therethrough to reach said operative position, and means for securing said marker unit at an injection site prior to the making of an injection, whereby said apparatus can in use be positioned at an injection site, said marker unit can be secured at said injection site, said needle can be moved to said operative position to make an injection and said housing can be removed leaving said marker unit at the injection site to mark the position thereof.
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