Medical tool having connection recognition and medical tool having decoupling recognition
A medical tool, in the form of a rotatably drivable tool, in particular a cutting tool such as a trepanation tool, the tool having a drive portion which can be connected to a medical device for in particular interlockingly transmitting torque, and a cutting portion which can be coupled to the drive portion so as to transmit torque. The tool comprises an electronic assembly which is designed to be activated by the tool being connected to the medical device, preferably by an operation of plugging the tool into the medical device, and/or to be activated by the cutting portion being decoupled from the drive portion.
1 . A medical tool which is in the form of a rotatably drivable tool, the medical tool comprising:
a drive portion configured to be connected to a medical device for interlockingly transmitting torque;
a sleeve, the sleeve having an activating portion;
a cutting portion configured to be coupled to the drive portion so as to transmit torque;
wherein the cutting portion is displaceable relative to the drive portion between a first axial position, in which the cutting portion and the drive portion are rotationally-coupled and the cutting portion and the sleeve are rotationally-decoupled, and a second axial position, in which the cutting portion and the drive portion are rotationally-decoupled and the cutting portion and the sleeve are rotationally-decoupled, and
an electronic assembly comprising a first switch that is configured to be activated mechanically by rotation of the activating portion, such that the electronic assembly is configured to acquire a number of revolutions of the cutting portion in the second axial position.
2 . The medical tool according to claim 1 , wherein the drive portion comprises a radial outer circumference and a push button radially outwardly projecting from the radial outer circumference, the push button forming the first switch, and wherein the sleeve comprises a radial inner circumference and a pin radially inwardly projecting from the radial inner circumference, the pin forming the activating portion.
3 . The medical tool according to claim 2 , wherein the drive portion comprises a radial circumferential groove, wherein the pin of the sleeve engages with the radial circumferential groove for axial locking engagement of the drive portion and the sleeve.
4 . The medical tool according to claim 3 , wherein the push button of the drive portion is positioned in the radial circumferential groove of the drive portion.
5 . The medical tool according to claim 1 , wherein the drive portion comprises a drive portion follower and the cutting portion comprises a cutting portion follower, the drive portion follower and the cutting portion engaging in the first axial position, wherein the sleeve radially encloses the drive portion follower and the cutting portion.
6 . The medical tool according to claim 1 , wherein the electronic assembly comprises a second switch, the second switch being mechanically activated by an axial displacement of the cutting portion from the first axial position to the second axial position such that a decoupling of the cutting portion from the drive portion is acquired.
7 . The medical tool according to claim 6 , wherein the electronic assembly is configured to acquire a number of decouplings of the cutting portion from the drive portion.
8 . The medical tool according to claim 1 , wherein the electronic assembly is arranged in a stationary component of the medical tool.
9 . The medical tool according to claim 1 , wherein the sleeve is made from plastic.