Medical tool and method for producing a medical tool

摘要

A hollow needle for an instrument used in ocular surgery for the in-vivo disintegration of organic lenses via ultrasound, having a functional part (1) and a connector part (2), with the connector part (2) having handling portions(3) and serving to attach the tool in a removable fashion to a handle, wherein the properties of the handling portions (3) change upon connection of the tool to the handle, removal of the tool from the handle, and/or upon reprocessing of the tool. In addition, a method is disclosed for the production of a corresponding medical tool.

主权项

1. A hollow needle for an instrument used in ocular surgery for in-vivo disintegration of organic lenses by means of ultrasound, said needle comprising:
a functional part (1); and a connector part (2), the connector part (2) comprising handling means (3) and serving to form a detachable connection with a handle, wherein:
the properties of the handling means (3) change upon at least one of connection of the needle to the handle or removal of the needle from the handle;the handling means (3) are embodied as an engagement point for a clamping tool;the clamping tool visibly damages the handling means (3) upon at least one of connection of the needle to the handle or disconnection of the needle from the handle, wherein said visible damage is perceptible to a user of the instrument;
the connector part (2) further comprises a circumferential groove (4) and an axial groove (6); andthe handling means (3) further comprises a circumferential protrusion and an axial protrusion that engage with said circumferential groove (4) and said axial groove (6), respectively, so as to securely fasten said handling means (3) to said connector part (2).