Abstract: A pistol-grip module includes a handle and a coupling member that is configured to couple, mechanically and electrically, to a battery compartment of an active frame. The active frame, which includes at least one electrically powered device, is intended to receive a data-capture device, such as a smart phone. In versions of the pistol-grip module that include a trigger, the trigger can be used to actuate the electrically powered device of the active frame.

Abstract: A pistol-grip module includes a handle and a coupling member that is configured to couple, mechanically and electrically, to a battery compartment of an active frame. The active frame, which includes at least one electrically powered device, is intended to receive a data-capture device, such as a smart phone. In versions of the pistol-grip module that include a trigger, the trigger can be used to actuate the electrically powered device of the active frame.

Abstract: An orthodontic bracket having opposite nonparallel surfaces and further incorporating one or more gripping portions to provide stability in gripping and handling. The gripping portion or portions may be formed as various types of small notches or shelves in the bracket body and preferably enable gripping to take place on opposite parallel surfaces even though surrounding surfaces are nonparallel and may be convergent. Methods of installation and removal involve gripping the appliance with a tool having movable jaws with at least one jaw engaging a gripping portion.