Patent ID: 9173679
Filing Date: 2015-11-03
Classification: A61B,A61M

Abstract:
1. A device for the insertion of a cannula into a bone of a patient, which comprises: a. an activator assembly for activating the device; b. a needle assembly which comprises a stylet and cannula; c. a barrel assembly for containing said stylet and cannula in a loaded state prior to the device activation; and d. a setting assembly for adjusting a penetration depth of said cannula into the patient's bone; wherein: e. said activator assembly comprises a first safety mechanism in a form of a safety catch that prevents activation of the device unless said safety catch is released; f. said activator assembly comprises a trigger that triggers activation of the device only if pulled toward a proximal direction, while pulling to a distal direction is prevented, thereby eliminating reverse direction activation; g. the device comprises a second safety mechanism that prevents activation of the device by locking it unless said setting assembly is pushed against a patient's body, thereby causing closure of a gap in the device between a jacket which is located in said barrel assembly and said activator assembly, hence the device becomes ready for activation only when placed properly against the patient's body.