Applicator with dosing unit
AssigneeErbe Elektromedizin GmbH
InventorsAndreas Fech, Frederik Kleber, Walter Linzenbold
Life of this patent
Estimating the term…
Abstract
An instrument having a dosing unit connected to a handle or housing of instrument. The dosing unit may include a reusable actuator with a drive unit and a single-use cartridge. The Cartridge may have a cylinder and a piston, and may be filled by a user prior to the intervention or may be prefilled by the manufacturer. The dosing unit is brought into an open position offset from housing by, for example, operating a latch slider and pulling the dosing unit in a proximal direction. After insertion of the cartridge, the dosing unit may be moved toward housing and the latched slider will lock the dosing unit into a closed position.
Claims16
An instrument for injecting a liquid into tissue, the instrument comprising:
- a housing on which a handle is provided for holding and guiding the instrument;
- a shank that extends in distal direction and that comprises at least one fluid channel;
- a fluid line that is configured for connection with a supplying apparatus for supply of the instrument with a pressurized first fluid, the pressurized first fluid having a first discharge pressure at the at least one fluid channel sufficient to open a penetration channel in the tissue and a second discharge pressure less than the first discharge pressure;
- and
- a dosing unit arranged on or in the housing, the dosing unit comprising a drive unit and a compartment adapted to receive a fluid container, the fluid container containing a second fluid, the drive unit of the dosing unit being adapted to provide a pressure application to the fluid container by reducing a volume of the fluid container to provide the second fluid at a third discharge pressure at the at least one fluid channel, the third discharge pressure being less than the first discharge pressure.
Dependencies are inferred from the claim text.