Handpiece for medical purposes, in particular for a medical or dental treatment device, preferably for a cutting treatment of a dental root canal
AssigneeKaltenbach & Voigt GmbH & Co.
InventorsHans Loge, Bernhard Kuhn, Bernd Gugel
Life of this patent
Estimating the term…
Abstract
In the case of a handpiece (3) for medical purposes, preferably for a cutting treatment of a dental root canal, with a tool holder (5) arranged in the front end region of the handpiece (3), with a retaining coupling (16) for detachable fastening of the tool (6) in the tool holder (5) and with a drive connection (8) extending lengthwise through the handpiece (3) for a rotary and/or reciprocating drive of the tool holder (5), an overload coupling (14) that limits the transmittable torque to a maximum torque value is arranged in the drive connection (8).
Claims25
In a handpiece for a medical or dental treatment device, the combination of:
- a tool holder arranged in a front end region of the handpiece;
- a retaining coupling constructed and arranged to permit detachable fastening of a tool the tool holder;
- a drive connection extending lengthwise through the handpiece for driving the tool holder;
- and
- an overload coupling arranged in a gripping sleeve region of the handpiece and along the drive connection in a manner which limits transmittable driving force to a maximum driving force.
In a handpiece for a medical or dental treatment device, the combination of:
- a toolholder arranged in a front end region of the handpiece;
- a retaining coupling constructed and arranged to permit for detachable fastening of a tool in the tool holder;
- and
- a drive connection arranged in the handpiece and extending in a forward direction to permit at least one of a rotary and a reciprocating drive of the tool holder,
- said handpiece being constructed to accommodate, in a rear end region thereof, a receiving device for a battery, an electronic control device and an electrical drive motor
- at least one of an electronic control device and an overload coupling being arranged in said rear end region to limit transmittable driving force through said drive connection to a maximum driving force value.
Dependencies are inferred from the claim text.