摘要:
In a medicinal or dental hand instrument (1) comprising a hand piece (2) and a handle (6) arranged on the hand piece (2), an outlet opening (5), arranged on the front side of the handle (6), for the outlet of an abrasive therapeutic agent and a transport fluid, and a coupling terminal (4) for coupling the hand instrument (1) to a supply line for at least one transport fluid, in particular water and/or air, wherein the coupling terminal (4) is a coupling component (14b) of a coupling (13), the coupling component (14b) is arranged on an insert piece (20) which can be plugged into a plug-in socket or plug-in recess (19) and in its end zone, facing away from the flow, has one or more coaxially or paraxially disposed, sealed pipe socket couplings (10), which each connect a feed line (9, 11) for the transport fluid to an ongoing feed line (21, 22).
摘要:
In a medicinal or dental hand instrument (1) comprising a hand piece (2) and a handle (6) arranged on the hand piece (2), an outlet opening (5), arranged on the front side of the handle (6), for the outlet of an abrasive therapeutic agent and a transport fluid, and a coupling terminal (4) for coupling the hand instrument (1) to a supply line for at least one transport fluid, in particular water and/or air, wherein the coupling terminal (4) is a coupling component (14b) of a coupling (13), the coupling component (14b) is arranged on an insert piece (20) which can be plugged into a plug-in socket or plug-in recess (19) and in its end zone, facing away from the flow, has one or more coaxially or paraxially disposed, sealed pipe socket couplings (10), which each connect a feed line (9, 11) for the transport fluid to an ongoing feed line (21, 22).
摘要:
A method and corresponding system for operating a dental handpiece, wherein the handpiece comprises a motor for driving a tool. the method comprises (a) sequentially capturing values of a physical parameter, which—at least approximately—represent the power or energy fed to the motor, (b) forming an integration value by integrating the values captured in (a), and (c) automatically reducing a power or energy fed to the motor if the integration value formed in (b) exceeds an upper threshold value. The integration value formed in (b) represents a measure of the power integrated over time and can thus be used at least approximately as a measure of the temperature of the instrument. The automatic reduction in the power or energy fed to the motor performed in (c) can therefore effectively act against a further increase in temperature or allow cooling if the temperature of the instrument exceeds an upper threshold value. In this manner, the risk of damage due to excessive temperature of the instrument can be effectively reduced.
摘要:
A device for disinfecting, sterilizing and/or maintaining medical, particularly dental, instruments comprises connecting units for connecting supply containers for media used by the device, in particular cleaning or care products, wherein the connecting units comprise control and/or identification means, which enable an identification of the supply container.
摘要:
A device for disinfecting, sterilizing and/or maintaining medical, especially dental, instruments comprises a maintenance and cleaning chamber for accommodating instruments to be conditioned and means for supplying different cleaning or maintenance media for cleaning, disinfecting or sterilizing and/or maintaining the instruments in subsequent steps. The start times of the conditioning cycles for the different instruments are staggered.
摘要:
A motor-driven handpiece, which has a grip sleeve with a head area for mounting a tool, in particular for the preparation of tooth substance and/or bone substance, in which the head area is at least partially surrounded or encapsulated by a thermoplastic material which, compared to the material of the rest of the grip sleeve, has a lower thermal conduction value.
摘要:
A device for disinfecting, sterilizing and/or maintaining medical, especially dental, instruments comprises a maintenance and leaning chamber for accommodating instruments to be conditioned and means for supplying different cleaning or maintenance media for cleaning, disinfecting or sterilizing and/or maintaining the instruments in subsequent steps. The start times of the conditioning cycles for the different instruments are staggered.
摘要:
The invention relates to a cannula for a medical or dental-medical handpiece for spraying a flow medium which contains abrasively effective particles, having a cannula shaft which is in substance straight, and a sideways directed outlet nozzle in the forward end region of the cannula shaft, wherein in the cannula shaft a first channel section of a delivery line extends axially forwardly, from which there extends a second channel section sideways to the outlet nozzle. In order to increase the working life, in the region of the apex of the angle included by the channel sections there is arranged an impact wall lying axially opposite to the first channel section and/or the channel sections are surrounded by a protective wall at least over a part of their length, wherein the impact wall and/or the protective wall are of a material that is more wear resistant or harder than the material of the cannula shaft.
摘要:
The invention relates to a cannula for a medical or dental-medical handpiece for spraying a flow medium which contains abrasively effective particles, having a cannula shaft which is in substance straight, and a sideways directed outlet nozzle in the forward end region of the cannula shaft, wherein in the cannula shaft a first channel section of a delivery line extends axially forwardly, from which there extends a second channel section sideways to the outlet nozzle. In order to increase the working life, in the region of the apex of the angle included by the channel sections there is arranged an impact wall lying axially opposite to the first channel section, and/or the channel sections are surrounded by a protective wall at least over a part of their length, wherein the impact wall and/or the protective wall are of a material that is more wear resistant or harder than the material of the cannula shaft.
摘要:
In the case of a treatment device, in particular a dental treatment instrument, having a tool, such as a dental drill, driven by a drive unit, and a conduit for delivery of a cooling medium to a treatment site worked by the tool, the quantity of the cooling medium delivered to the treatment site is dependent upon the removal power of the tool or upon the torque exercised by the tool.