Abstract: A disposable injection transmitter for use between injecting needles and a primary injection site. A body having a passage through it. A hollow auxiliary needle joined to the body in communication with one end of the passage and adapted to penetrate through and reside in the primary injection site. An elastomeric wall joined to the body and covering the other end of the passage and adapted to receive a series of injecting needles through it to inject fluids into or beyond the passage.

Abstract: A single hand-operated actuator for effecting operation of two devices, such as the front and rear caliper brakes of a bicycle or the like. The actuator includes a base adapted to be secured to the handle bars of a bicycle and having two Bowden sliding wire or cable linkages thereon with the linkages being interconnected to a lever operated by one hand for effecting actuation of both the front and rear brakes of the bicycle via the linkages. In another version of the actuator of this invention, a mechanical power assist is provided for aiding operation of the actuator.