DE202009012344U1 - Apparatus for the manual production of thin sections for microscopic examination - Google Patents

Abstract

Device for the manual production of thin sections for microscopic examination, characterized in that the slide for better handling on a convenient to keep, z. B. a computer mouse similar, holder is attached.

Description

Situation:

to Production of thin sections The samples to be ground are glued to a slide. Then the slide becomes by hand over one Grated with abrasive abrasive grain size provided glass sheet until the desired Thickness is reached.

Problem:

The The procedure described above is time consuming, exhausting, error prone because dependent only from the skill and the experience of the performers Person. The slide is just uncomfortable to hold with your fingers. When rough grinding are therefore only limited size Material removal possible.

Solution:

1. Adjustment of the thickness to be ground ( 1 )

The slide together with the glued sample to be ground is mounted on the underside of a computer mouse-like holder by creating and maintaining a vacuum or clamping force. This allows the slide to be handled safely and conveniently. The holder ( 1 ) is now connected to the slide ( 2 ) down on a support ( 3 ) or pressed, whereby the sample ( 4 ) into a depression ( 5 protrudes. By a suitable device, such. B. micrometer screws or spacer plates ( 6 ) between the slide and the support, a distance of the slide can be made to support. With adjustable stops ( 7 ) this distance is fixed. This distance is at the same time the desired thickness ( 8th ) of the sample.

2. grinding ( 2 )

Now on the grinding surface ( 9 ), whereby the stops ( 7 ) not yet on the slides ( 10 ) sit up. For this purpose, either a rotating disc with an annular grinding surface and slides is used, or it is moved by hand on a suitable grinding device, also with grinding surface and slides oscillating.

3. Finished ( 3 )

Once the sample ( 4 ) is ground to such an extent that the attacks ( 7 ) on the slideways ( 10 ), the desired thickness is reached, thereby preventing further grinding.

By Use of coarse and then finer abrasives in several steps higher Abtragsleistungen be achieved.

To the can also grind a glass plate with a lying lapping be used. The attacks then sit directly on the glass plate. It is, however to consider when hiring, that at this type of application the stops also something can be sanded off.

Instead of attacks can be used to produce the end gap between slides and Slideway also a suitable object, eg. B. one of the desired Thickness corresponding dimensionally stable Foil, directly on the slide attached, z. B. glued, are used.

Claims (3)

Device for the manual production of thin sections for microscopic Examination characterized in that the slide for better handling on a convenient to keep, z. B. one Computer mouse resembling, Holder is attached. Device for the manual production of thin sections for microscopic Investigation characterized in that by adjustable stops on the holder a defined distance between slide and abrasive produced It is imperative that a correct thickness of the ground sample be obtained leads. Device for the manual production of thin sections for microscopic Examination characterized in that by mounted on the slide objects such as B. dimensionally accurate Slides, a defined distance between slides and Abrasive is produced, which is mandatory for a correct Thickness of the ground sample leads.