Patent ID: 8834412
Filing Date: 2014-09-16
Classification: A61M

Abstract:
1. A device for back-injection of an implant comprising: a grip for a user to hold the device; an injection needle; a retaining element for retaining the implant proximal to the injection needle; a plunger including a distal part for injecting the implant during withdrawal of the injection needle, the plunger comprising two separable parts, the distal part and a proximal part, the distal part for positioning the implant flush with the distal end of the injection needle; a protective sleeve adopting an injection position leaving the injection needle uncovered prior to use of the device and a safety position covering the injection needle after use of the device; and a compressible spring moving the protective sleeve automatically into the safety position, the movement of the compressible spring being controllable by the user at least partially opposing the release of the compressible spring; wherein the distal part of the plunger is fastenable to the protective sleeve, and the distal part separates from the proximal part and the compressible spring moves the distal part into the injection needle to keep the implant in place while the protective sleeve moves together with the distal part of the plunger into safety position by the compressible spring.