CN2052898U

CN2052898U - Polyester coverture forming mould for biological cut section

Info

Publication number: CN2052898U
Application number: CN 89216781
Authority: CN
Inventors: 周润华
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-09-05
Filing date: 1989-09-05
Publication date: 1990-02-14

Abstract

The utility model provides a biological cut section sample piece forming mould using the polyester plastic as the embedding medium, which comprises a bracket (1) and a thin-walled plastic cavity, wherein, the plastic cavity is divided into the molding cavity (2) of the clamping body of the embedding medium, and a molding cavity of the cut section of the embedding medium. The biological cut section sample piece forming mould using the polyester plastic as the embedding medium has the advantages of simple structure, low cost, embedding medium dosage saving, and easy demoulding. The sample pieces taken out from the mold can be directly used for cut sections without refinishing.

Description

Polyester coverture forming mould for biological cut section

The utility model relates to a kind of aid that uses when making biologic slice, particularly a kind of biologic slice plastic embedding agent mould.

Made biologic slice in the past, generally all be to adopt paraffin imbedding, promptly piece together becoming a rectangle moving form with two L shaped copper sheets earlier, then the sample thing is placed the die cavity bottom surface, paraffin in the cast is treated the paraffin cooling curing, peel off matrix again, take off paraffin mass, must use sharp blade carefully to repair the paraffin mass face of tool then, be only the section sampling at last.Manufacture craft is very numerous and diverse; Moreover the quality of solid paraffin comparatively ravels, and desirable print yield rate is very low, and the biologic slice of making is thicker, is not easy to observation.

Recently use polyester plastics to substitute the embedding medium of paraffin as biologic slice more and more widely, utilize the physical and mechanical properties of polyester plastics, the biologic slice of just can root refusing to need random cutting to go out as thin as a wafer comes.But flexible mould commonly used easily causes the polyester plastics embedding medium of injection to solidify formed thereby shape utmost point irregularity, and solid polyester plastics toughness is stronger, and the finishing to its face of tool before the section is very difficult, can not so that must employ file.Use general fixed mould, be difficult to the demoulding again,, usually mould must be destroyed for taking out the sample piece.Used fixed mould structure is complicated, and cost is higher, and destroying mould is extremely uneconomic thing.

The purpose of this utility model provides a kind of simple in structure, is easy to make, and with low cost, embedding medium is low-consuming, the demoulding easily, and the sample piece that takes out from mould need not repaired the biologic slice plastic embedding agent mould that just can be directly used in section basically.

Principle of the present utility model is: whole mould mainly partly is a moulding chamber of thin-walled embedding medium, its inner chamber and the whole thin-walled pressure vessel of making by the shape need of section sample piece in fact exactly, sample to be detected is placed on the baseplane, chamber, inject liquid polyesters plastic embedding agent, after treating its solidified forming, nature is peeled off with the chamber wall, and the thin-walled of extrusion die just can be extruded solid-state polyester plastics sample piece in moulding chamber.

Because this mould does not have leakage, the solid polyester plastic-like piece that is moulded shape is very regular, need not basically just can directly cut into slices through manual amendment again, and this just can save a lot of embedding mediums and additional man-hour.The very simple available list of its structure, plastics are put in order injection molded or sheet metal is made, and cost is very low, and supply the market can be mass-produced.

From accompanying drawing and following embodiment, can do further to understand to the utility model.

Fig. 1 is a structural representation of the present utility model.

Entire die is made of support (1) and the moulding chamber of thin-walled by the block-shaped requirement design of section sample, the epimere in moulding chamber partly is an embedding medium cramping body forming cavity (2), hypomere partly is embedding medium sheet slitting forming chamber (3), whole moulding chamber just is equivalent to a thin-walled pressure vessel, upper end, moulding chamber accent is complete spacious, and the accent neighboring is provided with support (1), the effect of support (1), the one, conveniently it is shelved on the Working gantry, topple over when avoiding pouring into a mould embedding medium; The 2nd, the intensity of increase mould.Support (1) in fact also we can say to be exactly the accent flange in the moulding chamber of mould, and this flange needs only and widely gone out 2 millimeter.

Actual conditions and needs when cutting into slices according to the sample piece, its cramping body part is preferably made cuboid, be beneficial to the microtome chuck and can firmly clamp and select the position of cutting into slices, so the xsect of mould embedding medium cramping body forming cavity (2) is designed to rectangle, and it is trapezoidal that the xsect of embedding medium section section forming cavity (3) is designed to up big and down small isosceles, be to receive in the two sides, like this, except that can further reducing the embedding medium consumption, the more important thing is and to give prominence to sample, be convenient to simultaneously shaping is carried out in the face of tool, alleviate the finishing process amount even need not to repair again, just can be directly used in section, also can make on the microslide of homalographic and can hold several sections more.

The wall thickness in moulding chamber is to look the Mold Making material to select, and makes as using the plastic monoblock injection moulding, and its wall thickness is generally the 0.5--2 millimeter, if use sheet metal to make, then the thickness of sheet metal is advisable for the 0.1--0.75 millimeter.

Claims

1, a kind of biologic slice plastic embedding agent mould that uses when making biologic slice, it is characterized in that it is made of support (1) and the moulding chamber of thin-walled, the epimere in moulding chamber is an embedding medium cramping body forming cavity (2), hypomere is an embedding medium section section forming cavity (3), and support (1) is arranged on the accent neighboring in moulding chamber.

2, biologic slice plastic embedding agent mould according to claim 1 is characterized in that the xsect of the embedding medium cramping body forming cavity (2) in moulding chamber is a rectangle, and the xsect of embedding medium section section forming cavity (3) is for trapezoidal.