Medical instruments for endoscopic surgery

Abstract

The invention relates to a medical instrument (10) for endoscopic surgery, comprising: a handle (12) comprising a distal end and a proximal end; a connecting piece (14) arranged in the region of the proximal end of the handle (12) ), wherein the handle tube (12) and the connector (14) are axially passed through by the same channel (50) for the elongated operating member (42) to pass through; the medical device also has a ) and includes an end piece (16) mounted thereon for handling the handle (54) of the medical device (10); The locking slider (18) in the angularly oriented borehole (22), wherein the locking slider (18) protrudes from the connecting part (14) with an actuating zone (20) and each time the finger presses the actuating zone (20) can be operated to a locked position and an unlocked position, so that the end piece (16) engaged to the connecting piece (14) is positively locked on the connecting piece (14) in the locked position and in the locked position. The unlocked position can be detached from the connecting piece (14), and the locking slider (18) is held in the locked position by the spring force of the spring element (24), wherein the spring element (24) is arranged on In the channel (22) between the operating area (20) and the channel (50).

Description

technical field [0001] The present invention relates to medical instruments for use in endoscopic surgery. Background technique [0002] Instruments for endoscopic surgery generally comprise a handle with a connector arranged in the region of the proximal end of the handle, a drawbar / tie rod extending through the handle and having an end effector secured in the region of the distal end of the rod. A push rod and a handle connectable to the rod to control the instrument and operate the end effector. Such instruments are usually designed to be disassembled for cleaning and for adaptation to different purposes. [0003] In order to produce a detachable coupling between the handle and the handle tube, the handle can usually be joined to the connecting piece with a joint. The link also acts as a rotary handle for turning the end effector mounted on the distal end of the rod. For this purpose, the rod with the end effector can usually be non-rotatably connected to the handle. ...

AI Technical Summary

Problems solved by technology

[0006] This structure with springs exposed on the outer surface of the medical device has proven to be disadvantageous in many respects

On the one hand, the cleanability of this device is poor

The spring elements surrounding the instruments form edges and crevices from which residues of substances associated with the instruments and bacteria can only be cleaned with difficulty

There is also the danger that parts of tissue or other material passing over the spring element, such as tissue opening closure threads, may catch on the edge of the spring element

This could cause the retention mechanism to stick or prevent instrument insertion

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