CN111579275A

CN111579275A - Collecting tray and slicing machine with same

Info

Publication number: CN111579275A
Application number: CN202010346305.3A
Authority: CN
Inventors: 张守泉
Original assignee: Rwd Life Science Co ltd
Current assignee: Rwd Life Science Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-08-25
Also published as: WO2021218237A1

Abstract

An embodiment of the present invention provides a collecting tray (4), including: the conductive medium is uniformly distributed in the body (41); and a conductive plate (42), the conductive plate (42) being fixed to the body (41) by a conductive fastener, and the conductive plate (42) being connectable to a base (11) of the main body (1) of the slicer, wherein the base (11) is grounded. According to the embodiment of the invention, the conductive medium is doped in the body of the collecting disc, so that the collecting disc has a conductive characteristic, and the body of the collecting disc is connected to the grounding base of the slicer main body through the conductive plate, so that a static electricity releasing passage is constructed, so that the collecting disc has long-term and effective anti-static adsorption capability, and the problem that paraffin debris is adhered to the collecting disc due to the static adsorption effect is solved.

Description

Collecting tray and slicing machine with same

Technical Field

The invention relates to the technical field of slicing machines, in particular to a collecting disc and a slicing machine with the collecting disc.

Background

The rotary microtome is suitable for the production of thin paraffin sections in the fields of biology, medicine and industrial research. Rotary microtomes typically include a main body, a sample positioning device, a knife holder, and a collection tray disposed around 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 sample feeding mechanism, the sample positioning device and the tool rest in the main body. During the slicing process, the need to adjust the slices or correct the paraffin blocks creates unnecessary paraffin debris that is scattered in the collection tray.

Since the tissue samples embedded in the paraffin block are usually contaminated or infected by bacteria, the collection plate is required to have the characteristics of no paraffin adhesion, easy cleaning and the like on the surface for the convenience of cleaning and the reduction of cross contamination among the tissue samples.

In the prior art, in order to solve the problem that paraffin fragments are adhered to a collecting tray due to the electrostatic adsorption effect, an antistatic coating is usually sprayed on the surface of the collecting tray. Because the thickness of the anti-static coating is very thin, the anti-static coating is easy to fall off when colliding during use. In addition, the static electricity preventing coating sprayed on the surface of the collecting tray has the problem of insufficient weather resistance. This results in a collection tray that does not have long term effective anti-stiction capabilities.

Disclosure of Invention

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

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

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

and the conductive plate (42), the conductive plate (42) is fixed on the body (41) through a conductive fastener, and the conductive plate (42) can be connected with a base (11) of the main body (1) of the slicing machine, wherein the base (11) is grounded.

In a second aspect, there is provided a microtome 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); the conductive plate (42) is connected to the base (11), wherein the base (11) is grounded.

According to the embodiment of the invention, the conductive medium is doped in the body of the collecting disc, so that the collecting disc has a conductive characteristic, and the body of the collecting disc is connected to the grounding base of the slicer main body through the conductive plate, so that a static electricity releasing passage is constructed, so that the collecting disc has long-term and effective anti-static adsorption capability, and the problem that paraffin debris is adhered to the collecting disc due to the static adsorption effect is solved.

Drawings

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

FIG. 1 is a schematic view of a microtome provided in accordance with an embodiment of the present invention;

FIG. 2 is an exploded view of a microtome provided by an embodiment of the present invention;

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

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

FIG. 4 is a cross-sectional view of the microtome of FIG. 1 taken along line A-A1;

fig. 5 is a schematic view of the region B in fig. 4.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar modules or modules having the same or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

Fig. 1 is a schematic view of a microtome according to an embodiment of the present invention, and fig. 2 is an exploded view of the microtome according to an embodiment of the present invention. As shown in fig. 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 having a substantially U-shape and being disposed around three sides of the knife holder 3. The main body 1 comprises a grounded base 11 and the collecting tray 4 comprises 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 conductive media, so that the conductive media are uniformly distributed in the body 41 in a specific ratio, and the body 41 becomes an antistatic material. The conductive medium includes but is not limited to carbon fiber, carbon black, metal fiber, metal powder, antistatic master batch, etc., and the plastic particles include but are not limited to ABS (acrylonitrile butadiene Styrene copolymers, acrylonitrile butadiene Styrene)Copolymer) PC (Polycarbonate), PA (Polyamide fiber), or POM (polyoxymethylene). The collecting tray 4 thus obtained is simple in manufacturing process, low in cost and light in weight.

Fig. 3a is an exploded top view and fig. 3b is an exploded bottom view of a collecting tray according to an embodiment of the present invention. Referring to fig. 2, 3a and 3b, the conductive plate 42 is fixed to the body 41 by a conductive first fastening screw 43 at the U-shaped recess of the body 41, so that the conductive plate 42 is electrically connected to the body 41. The conductive plate 42 includes two bosses 421, and a protruding portion of the boss 421 faces the base 11 and can be connected to a specific position of the base 11. The conducting plate 42 is a sheet metal part, and the surface is electroplated with environment-friendly color zinc to meet the requirements of electrification and conduction.

Fig. 4 is a cross-sectional view of the microtome of fig. 1 taken along the dashed line a-a1, and fig. 5 is a schematic view of the area B of fig. 4. Referring to fig. 2, 4 and 5, the microtome further includes a magnet 5 embedded in the base 11, and accordingly, the conductive plate 42 is a magnetic plate, and the conductive plate 42 is attracted and contacted with the magnet 5. The magnet 5 provides an attractive magnetic force to attract the conductive plate 42, so that the collecting tray 4 is fixed at a specific position of the base 11, and the requirement of electrification and conduction can be met.

Preferably, the slicer further includes a protective case 6 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, preferably aluminum, and the surface of the protective shell is subjected to conductive oxidation treatment to meet the requirements of electrification and 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 contacted with the protective shell 6 and the second fastening screw 7 through the boss 421, and the requirement of electrification and conduction is met.

The body 41 containing the conductive medium is conducted 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, so that the collection disc 4 is connected with the ground, the collection of static charges on the collection disc 4 cannot occur, paraffin fragments cannot be adsorbed by the static charges, and the collection disc 4 is difficult to clean.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A collecting tray (4), characterized in that it comprises:

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

a conductive plate (42), the conductive plate (42) being fixed to the body (41) by a conductive fastener, and the conductive plate (42) being connectable to a base (11) of a main body (1) of the slicer, wherein the base (11) is grounded.

2. The collecting tray (4) according to claim 1, characterized in that the conductive plate (42) is a sheet metal part, the surface of the conductive plate (42) being plated with colored zinc.

3. A collecting tray (4) according to claim 1, characterized in that the conductive plate (42) comprises at least one boss (421), said at least one boss (421) being connectable to the base plate (11).

4. A collecting tray (4) according to claim 1, characterized in that plastic pellets containing the electrically conductive medium are injection molded into the body (41) such that the electrically conductive medium is evenly distributed in the body (41).

5. Collecting tray (4) according to any of claims 1-4, characterized in that the body (41) is U-shaped and the conductive plate (42) is fixed in a U-shaped recess of the body (41).

6. A microtome, comprising a collection plate (4) according to any one of claims 1 to 5, a 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 microtome according to claim 6, further comprising a magnet (5) embedded in the base (11); the conducting plate (42) is a magnetic plate, and the conducting plate (42) and the magnet (5) are attracted.

8. The microtome according to claim 7, further comprising a protective case (6) having a surface subjected to conductive oxidation treatment, the protective case (6) being disposed between the conductive plate (42) and the magnet (5).

9. The microtome according to claim 8, characterized in that the magnet (5) and the protective casing (6) are embedded in the base (11) by means of a second fastening screw (7).

10. The slicer according to any of claims 6-9, wherein the base (11) is aluminum.