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Space-saving ratchet unit with freewheel

A ratchet and flywheel technology, applied in the field of space-saving ratchet units with flywheels, can solve problems such as instability, and achieve the effect of reducing radial space requirements

Active Publication Date: 2018-03-27
AESCULAP AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, reintroduction of the latter is often unstable

Method used

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  • Space-saving ratchet unit with freewheel
  • Space-saving ratchet unit with freewheel
  • Space-saving ratchet unit with freewheel

Examples

Experimental program
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Embodiment Construction

[0060] The drawings are only schematic and are used to aid understanding of the present invention. The same elements are denoted by the same reference numerals.

[0061] figure 1 A ratchet 1 according to the invention is shown. Said ratchet 1 , which can also be called ratchet or ratchet, is in switching position 1 in order to ensure right-hand rotation. It has a torque introducing or input element (input sleeve / ratchet housing) 2 and a torque releasing or output element (output sleeve / output shaft) 3 . A toothed unit (ratchet transmission) 4 is arranged between the two components 2 and 3 . Preferably, the toothed unit 4 can be switched manually. Depending on the switching position of the toothed unit 4 , torque is or can be transmitted from the torque vectoring element 2 to the torque release element 3 in the direction of rotation selected corresponding to the switching position. Depending on the switching position and the direction of rotation on the torque vectoring el...

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PUM

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Abstract

The invention relates to a ratchet (1) for a medical device (30), comprising a torque-guiding element (2) and a torque discharging element (3), between which a switchable toothed unit (4) is arrangedso that, in accordance with a switching position of the toothed unit (4), torque from the torque-guiding element (2) is transferred to the torque discharging element, said toothed unit (4) comprises two torque transfer sleeves (5, 6) arranged in a nested manner and which are arranged and produced such that both can be brought into torque-transmitting contact with an intermediate sleeve (17). The invention also relates to a medical device (30) comprising a ratchet of said type (1).

Description

technical field [0001] The present invention relates to a ratchet for medical devices such as drilling, milling and / or screwing machines for drilling / milling bone and / or for setting screws in bone or for screwing in implants, The ratchet comprises a torque vectoring element and a torque releasing element, between which a switchable toothed unit is arranged such that, depending on the switched position of the toothed unit, the torque from the torque vectoring element is only transmitted in a selectable one direction of rotation to Torque release element. Background technique [0002] A close prior art is known, for example, from DE 10 2011 088 252 A1. This document discloses an additional ratchet for driving a tightening tool for loosening and tightening screw elements and which can be driven selectively in two directions of rotation, optionally the additional ratchet can be realized as a straight The additional section can also be realized as an angular additional section....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16A61B17/84B25B15/04A61B17/00
CPCA61B17/162A61B17/1624A61B2017/00407A61B17/84B25B13/466B25B23/141
Inventor 简·施泰因豪泽拉尔夫·菲斯特
Owner AESCULAP AG
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