Abstract: A drug-injecting device with a traveling hypodermic or intramuscular needle. The drug-injecting device includes a syringe body which has a base and a top opening into a hollow interior. A membrane is attached across the base of the syringe body, hermetically sealing the reservoir of the syringe from the environment. A plunger is situated within the hollow interior of the syringe body, so that one end of the plunger projects outward through the top of the syringe body. A piston is attached to the other end of the plunger. The plunger is configured to travel back and forth within the hollow interior of the syringe body between a first position and a second position. A needle is attached to the piston so that the needle travels with the plunger when the plunger is moved between the first and second positions.

Abstract: A drug-injecting device with a traveling hypodermic or intramuscular needle. The drug-injecting device includes a syringe body which has a base and a top opening into a hollow interior. A membrane is attached across the base of the syringe body, hermetically sealing the reservoir of the syringe from the environment. A plunger is situated within the hollow interior of the syringe body, so that one end of the plunger projects outward through the top of the syringe body. A piston is attached to the other end of the plunger. The plunger is configured to travel back and forth within the hollow interior of the syringe body between a first position and a second position. A needle is attached to the piston so that the needle travels with the plunger when the plunger is moved between the first and second positions.

Abstract: A tranquilizer bracelet which can be locked onto A wearer's wrist. The bracelet contains A power source, an electronic control module, and means for injecting A tranquilizing agent into the wearer. Instructions can be sent to the control module remotely, such as by using radio transmissions. The bracelet is provided with A lock to secure it to the wrist. It can only be opened using A mechanical key or electronic code. Thus, once the bracelet is installed, it cannot be removed by the wearer. In the event that tranquilization is necessary, A remote signal is sent to the control module. The signal activates A mechanism within the bracelet which causes the injection of the tranquilizing agent. Anti-tampering mechanisms are also provided, which will produce an alert signal if the bracelet is somehow removed by the wearer.

Abstract: A tranquilizer bracelet which can be locked onto A wearer's wrist. The bracelet contains A power source, an electronic control module, and means for injecting A tranquilizing agent into the wearer. Instructions can be sent to the control module remotely, such as by using radio transmissions. The bracelet is provided with A lock to secure it to the wrist. It can only be opened using A mechanical key or electronic code. Thus, once the bracelet is installed, it cannot be removed by the wearer. In the event that tranquilization is necessary, A remote signal is sent to the control module. The signal activates A mechanism within the bracelet which causes the injection of the tranquilizing agent. Anti-tampering mechanisms are also provided, which will produce an alert signal if the bracelet is somehow removed by the wearer.