Medical instrument and method for producing a medical instrument
AssigneeAesculap AG
InventorsDaniel Morales, Dominic Faitsch, Daniel Weisser
Life of this patent
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Abstract
A medical instrument and method for producing a medical instrument. The medical instrument includes at least one instrument arm. A toothing with at least two teeth is formed on a distal end of the instrument arm. Each of the teeth project transversely from the distal end and has two tooth flanks facing away from one another. Each tooth flank has at least one planar first surface region and at least one planar second surface region. The at least one planar first surface region and the at least one planar second surface region are inclined toward one another by a surface region angle. The first and second surface regions are formed by milling, in particular with a CNC machine.
Claims8
A method for producing a medical instrument, the method comprising the steps of:
- forming at least one instrument arm;
- and
- forming a toothing on a distal end of the at least one instrument arm, which at least one instrument arm has a top side that is planar, wherein a distal end region of the at least one instrument arm defines a longitudinal direction,
- the toothing having at least two teeth that project transversely from the distal end, wherein each of the at least two teeth have tooth flanks facing away from one another, wherein each tooth flank is configured having at least one first surface region that is planar and at least one second surface region that is planar, wherein the at least one first surface region and the at least one second surface region are inclined toward one another by a surface region angle, and wherein the at least one first surface region and the at least one second surface region are formed by milling with a numerically controlled machine,
- wherein the at least one first surface region is made with a first milling tool having a cylindrical milling cutter, which cylindrical milling cutter is moved in the longitudinal direction,
- wherein, during milling of the at least one first surface region, a longitudinal axis of the cylindrical milling cutter is oriented both perpendicular to the top side and perpendicular to the longitudinal direction,
- wherein the at least one second surface region is made with a second milling tool having a first conical milling cutter, which first conical milling cutter is moved obliquely forward in a distal direction in a milling direction which is inclined relative to the top side by an angle of inclination,
- wherein, during milling of the at least one second surface region, a longitudinal axis of the first conical milling cutter is inclined relative to the top side by an angle of inclination and, together with the longitudinal direction, the longitudinal axis of the first conical milling cutter defines a plane extending perpendicularly to the top side.
Dependencies are inferred from the claim text.