CN111579275A - Collecting tray and slicing machine with same - Google Patents

Abstract

An embodiment of the present invention provides a collecting tray (4), comprising: a body (41) in which a conductive medium is uniformly distributed; and a conductive plate (42), the conductive plate (42) being fastened by conductive The component is fixed on the body (41), and the conductive plate (42) can be connected with the base (11) of the main body (1) of the microtome, wherein the base (11) is grounded. In the embodiment of the present invention, a conductive medium is mixed into the body of the collection disc, so that the collection disc has conductive properties, and then the body of the collection disc is connected to the grounding base of the slicer body through the conductive plate to construct an electrostatic discharge path, so that the The collection tray has a long-term and effective anti-static adsorption ability, which solves the problem of paraffin chips sticking to the collection tray due to electrostatic adsorption.

Description

A collection tray and slicer having the same

technical field

The invention relates to the technical field of slicers, in particular to a collection tray and a slicer with the same.

Background technique

The rotary microtome is suitable for the production of thin paraffin sections in the fields of biology, medicine and industrial research. A rotary microtome typically includes a main body, a sample positioning device, a knife holder, and a collection tray that surrounds three sides of the knife holder. The paraffin block embedded with the tissue sample is fixed on the sample positioning device, and the paraffin block is sliced through the sampling mechanism, the sample positioning device and the knife holder in the main body. During the sectioning process, it is necessary to adjust the section or correct the paraffin block, which will generate unnecessary paraffin debris, which is scattered in the collection tray.

Since tissue samples embedded in paraffin blocks are usually contaminated or bacterially infected biological tissues, in order to facilitate cleaning and reduce cross-contamination between tissue samples, the surface of the collection tray is required to have the characteristics of non-stick paraffin and easy cleaning.

In the prior art, in order to solve the problem that paraffin chips stick to the collecting tray due to electrostatic adsorption, an antistatic coating is usually sprayed on the surface of the collecting tray. Due to the thin thickness of the anti-static coating, it is easy to cause the anti-static coating to fall off when bumped during use. In addition, spraying an antistatic coating on the surface of the collecting tray also has the problem of insufficient weather resistance. All of these will cause the collection tray not to have a long-term and effective anti-static adsorption capacity.

SUMMARY OF THE INVENTION

The embodiment of the present invention provides a collection tray, which aims to solve the problem that the collection tray in the prior art does not have a long-term and effective anti-static adsorption capacity.

In a first aspect, a collection tray (4) is provided, comprising:

a body (41) in which the conductive medium is uniformly distributed; and

A conductive plate (42), the conductive plate (42) is fixed to the body (41) through conductive fasteners, and the conductive plate (42) can be connected to the base (11) of the main body (1) of the slicer, wherein the base ( 11) Ground.

In a second aspect, a microtome is provided, comprising a collection tray (4) as described above, a main body (1) comprising a base (11), a sample positioning device (2) and a knife holder (3); a conductive plate (42) It is connected with the base (11), wherein the base (11) is grounded.

In the embodiment of the present invention, a conductive medium is mixed into the body of the collection disc, so that the collection disc has conductive properties, and then the body of the collection disc is connected to the grounding base of the slicer body through the conductive plate to construct an electrostatic discharge path, so that the The collection tray has a long-term and effective anti-static adsorption ability, which solves the problem of paraffin chips sticking to the collection tray due to electrostatic adsorption.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic diagram of a slicer provided by an embodiment of the present invention;

2 is an exploded view of a slicer provided by an embodiment of the present invention;

Figure 3a is a top exploded view of a collection tray provided by an embodiment of the present invention;

Figure 3b is a bottom exploded view of a collection tray provided by an embodiment of the present invention;

Fig. 4 is a sectional view of the slicer along the dotted line A-A1 in Fig. 1;

FIG. 5 is a schematic diagram of region B in FIG. 4 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar modules or modules having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

In the embodiment of the present invention, a conductive medium is mixed into the body of the collection disc, so that the collection disc has conductive properties, and then the body of the collection disc is connected to the grounding base of the slicer body through the conductive plate to construct an electrostatic discharge path, so that the The collection tray has a long-term and effective anti-static adsorption ability, which solves the problem of paraffin chips sticking to the collection tray due to electrostatic adsorption.

FIG. 1 is a schematic diagram of a slicer provided by an embodiment of the present invention, and FIG. 2 is an exploded view of the slicer provided by an embodiment of the present invention. As shown in FIGS. 1 and 2 , the microtome includes a main body 1 , a sample positioning device 2 , a knife holder 3 and a collection tray 4 . The collection tray 4 is roughly U-shaped and is arranged around three sides of the knife holder 3 . The main body 1 includes a grounded base 11 , and the collection tray 4 includes a body 41 and a conductive plate 42 .

In the embodiment of the present invention, the body 41 is obtained by injection molding plastic pellets containing a conductive medium, so that the conductive medium is uniformly distributed in the body 41 in a specific proportion, and the body 41 becomes an antistatic material. Conductive media include but are not limited to carbon fiber, carbon black, metal fiber, metal powder, antistatic masterbatch, etc., plastic particles include but are not limited to ABS (Acrylonitrilebutadiene Styrene copolymers, acrylonitrile-butadiene-styrene copolymers ), PC ( Polycarbonate), PA (Polyamide, polyamide fiber) or POM (polyformaldehyde, polyoxymethylene). The collection tray 4 thus obtained is simple in manufacturing process, low in cost and light in weight.

Fig. 3a is a top exploded view of a collecting tray provided by an embodiment of the present invention, and Fig. 3b is a bottom exploded view of the collecting tray provided by an embodiment of the present invention. 2, 3a and 3b, at the U-shaped recess of the main body 41, the conductive plate 42 is fixed to the main body 41 by the first conductive fastening screws 43, so that the conductive plate 42 and the main body 41 are connected. The conductive plate 42 includes two bosses 421 . The protruding parts of the bosses 421 face the base 11 and can be connected to a specific position of the base 11 . The conductive plate 42 is a sheet metal part, and the surface is electroplated with environmentally friendly color zinc, which meets the requirements of electrical conduction.

FIG. 4 is a cross-sectional view of the slicer along the dotted line A-A1 in FIG. 1 , and FIG. 5 is a schematic view of the area B in FIG. 4 . 2 , 4 and 5 , the slicer further includes a magnet 5 embedded in the base 11 . Accordingly, the conductive plate 42 is a magnetic plate, and the conductive plate 42 attracts and contacts with the magnet 5 . The magnet 5 provides magnetic attraction force, attracts the conductive plate 42, fixes the collecting tray 4 at a specific position of the base 11, and can also meet the requirements of electrical conduction.

Preferably, the slicer further includes a protective shell 6 , which is disposed between the conductive plate 42 and the magnet 5 for fixing and protecting the magnet 5 . The protective shell 6 is made of metal material, preferably aluminum, and the surface is subjected to conductive oxidation treatment to meet the requirements of electrical conduction. Further, the magnet 5 and the protective shell 6 are embedded in the base 11 through the second fastening screw 7, and the base 11 is made of aluminum. The conductive plate 42 is in contact with the protective shell 6 and the second fastening screw 7 through the boss 421, so as to meet the requirements of electrical conduction.

The body 41 containing the conductive medium is in conduction with the conductive plate 42, the conductive plate 42 is in contact with the protective shell 6 and the second fastening screw 7, the protective shell 6 and the second fastening screw 7 are in contact with the base 11, and the base 11 is grounded, The connection between the collecting tray 4 and the ground is realized, so that no accumulation of electrostatic charges occurs on the collecting tray 4, and no paraffin chips are adsorbed by the electrostatic charges, which makes the collecting tray 4 difficult to clean.

In the embodiment of the present invention, a conductive medium is mixed into the body of the collection disc, so that the collection disc has conductive properties, and then the body of the collection disc is connected to the grounding base of the slicer body through the conductive plate to construct an electrostatic discharge path, so that the The collection tray has a long-term and effective anti-static adsorption ability, which solves the problem of paraffin chips sticking to the collection tray due to electrostatic adsorption.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (10)

1. A collection tray (4), characterized in that, comprising: a body (41) in which the conductive medium is uniformly distributed; and A conductive plate (42), the conductive plate (42) is fixed to the body (41) by conductive fasteners, and the conductive plate (42) can be connected with the base (11) of the main body (1) of the slicer connected, wherein the base (11) is grounded. 2 . The collecting tray ( 4 ) according to claim 1 , wherein the conductive plate ( 42 ) is a sheet metal part, and the surface of the conductive plate ( 42 ) is electroplated with color zinc. 3 . 3. The collection tray (4) according to claim 1, wherein the conductive plate (42) comprises at least one boss (421), and the at least one boss (421) can be connected with the base (421). 11) Connected. 4. The collecting tray (4) according to claim 1, characterized in that, plastic pellets containing the conductive medium are injection-molded into the body (41), so that the conductive medium is uniformly distributed on the body (41). 41) in. 5. The collection tray (4) according to any one of claims 1-4, characterized in that, the body (41) is U-shaped, and the conductive plate (42) is fixed on the body (41) U-shaped depression. 6. A microtome, characterized by comprising the collection tray (4) according to any one of claims 1-5, a main body (1) comprising a base (11), a sample positioning device (2) and a knife holder (3); the conductive plate (42) is connected to the base (11), wherein the base (11) is grounded. 7 . The slicer according to claim 6 , further comprising a magnet ( 5 ) embedded in the base ( 11 ); the conductive plate ( 42 ) is a magnetic plate, and the conductive plate ( 42 ) Attracted with the magnet (5). 8 . The slicer according to claim 7 , further comprising a protective shell ( 6 ) whose surface is subjected to conductive oxidation treatment, the protective shell ( 6 ) being disposed on the conductive plate ( 42 ) and the magnet. 9 . (5) between. 9 . The slicer according to claim 8 , wherein the magnet ( 5 ) and the protective shell ( 6 ) are embedded in the base ( 11 ) through a second fastening screw ( 7 ). 10 . 10. The slicer according to any one of claims 6-9, wherein the base (11) is aluminum.

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