An electrical discharge irrigation device and method is described. The device includes a power source to produce a first voltage, a circuit coupled to the power source to convert the first voltage to a second voltage, a discharge capacitor to receive the second voltage from the circuit, a transistor or controlled rectifier coupled to the discharge capacitor to receive the second voltage, and an output tip. This output tip is coupled to the transistor or controlled rectifier and includes an electrode located in an interior space of the output tip configured to receive a charge from the transistor or controlled rectifier and to release an electric discharge, and a ground return. The ground return is an outside surface of the output tip and a space between the electrode and the ground return holds a conductive medium.

A coupling device for selectively coupling a dental handpiece to a dental base station. An electrical power source is housed by the coupling device. A first end of the coupling device is selectively coupleable to the dental base station and configured to receive a gaseous or fluid medium from the dental base station. A second end of the coupling device is selectively coupleable to the dental handpiece and configured to output the gaseous or fluid medium from the dental base station to the dental handpiece and to output electrical power from the electrical power source to the dental handpiece.

A coupling device for selectively coupling a dental handpiece to a dental base station. An electrical power source is housed by the coupling device. A first end of the coupling device is selectively coupleable to the dental base station and configured to receive a gaseous or fluid medium from the dental base station. A second end of the coupling device is selectively coupleable to the dental handpiece and configured to output the gaseous or fluid medium from the dental base station to the dental handpiece and to output electrical power from the electrical power source to the dental handpiece.

A motor driven dispenser for the motorized extrusion and precise placement of dental materials from impression material cartridges of different sizes. The dispenser includes nested plungers to reduce the length and width of the dispenser as well as a cap affixed to the dispenser housing which snaps over a cartridge flange of the impression material cartridges to retain it.

A motor driven dispenser for the motorized extrusion and precise placement of dental materials from impression material cartridges of different sizes. The dispenser includes nested plungers to reduce the length and width of the dispenser as well as a cap affixed to the dispenser housing which snaps over a cartridge flange of the impression material cartridges to retain it.

In various examples, a system for wirelessly transmitting power using resonant magnetic field power transfer includes a device including at least one component to be wirelessly powered. The device includes an elongate shaft and a capture element including a capture coil. A source element for wirelessly supplying power to the device includes a source coil disposed around an opening. The opening is sized to allow the elongate shaft of the device to fit therein. The source is located proximate a surgical access point, wherein, with insertion of the elongate shaft within the opening of the source for surgical access, the capture coil is disposed sufficiently proximate the source coil to allow power to be wirelessly transmitted from the source coil to the capture coil to power the at least one component of the device.

In various examples, a system for wirelessly transmitting power using resonant magnetic field power transfer includes a device including at least one component to be wirelessly powered. The device includes an elongate shaft and a capture element including a capture coil. A source element for wirelessly supplying power to the device includes a source coil disposed around an opening. The opening is sized to allow the elongate shaft of the device to fit therein. The source is located proximate a surgical access point, wherein, with insertion of the elongate shaft within the opening of the source for surgical access, the capture coil is disposed sufficiently proximate the source coil to allow power to be wirelessly transmitted from the source coil to the capture coil to power the at least one component of the device.

An electrical discharge irrigation device includes a power source to produce power of a first voltage, a circuit coupled to the power source to convert the power of the first voltage to power of a second voltage where the second voltage is higher than the first voltage, a trigger to activate the circuit, an igniter coupled to the circuit to produce a spike, an electrical charge storage component coupled to the igniter the electrical charge storage component becoming conductive and storing an electrical charge after receiving the spike, and an output tip. The output tip includes an electrode and insulating material as an outer layer.

An electrical discharge irrigation device includes a power source to produce power of a first voltage, a circuit coupled to the power source to convert the power of the first voltage to power of a second voltage where the second voltage is higher than the first voltage, a trigger to activate the circuit, an igniter coupled to the circuit to produce a spike, an electrical charge storage component coupled to the igniter the electrical charge storage component becoming conductive and storing an electrical charge after receiving the spike, and an output tip. The output tip includes an electrode and insulating material as an outer layer.

A dental handpiece comprises an outer sleeve (1), a tool-holding socket (2) for holding a treatment tool (3) arranged in the handpiece, wherein the tool-holding socket (2) has a central axis about which the tool-holding socket (2) can be rotated and/or oscillated and wherein the tool-holding socket (2) is arranged to be driven by a driveshaft of the handpiece driven by a motor (10) housed in the outer sleeve (1). At least one Peltier element (5) is received in the handpiece in thermal contact with the tool-holding socket (2), the Peltier element (5) having a cool face in thermal contact with the tool-holding socket (2) to cool a treatment tool (3) held therein when the tool (3) is driven in rotation or oscillation.