Intraosseous device for inserting a cannula into a bone

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.