JP2004294171A - Cassette for medical examination - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cassette for medical examination having improved permeability for chemical treatment. <P>SOLUTION: This cassette for medical examination is equipped with a cassette body 1 and a lid 2 made of a chemical-resistant material. In the cassette, the cassette body 1 is a square vessel capable of storing a specimen, and having an open upper face and many apertures 3, and the lid 2 having many through holes 7 is mounted detachably on the cassette body 1. The cassette is characterized by being provided with space part forming projections 14 at least near four corners on the outside of the lid 2 surface, and with at least one space part forming projection 15 on the inside. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cassette for medical examination used for producing a microscope specimen for medical examination, and more particularly, to a case in which a projection for forming a space is provided on the surface of a lid, and the cassettes are stacked or juxtaposed to perform a chemical solution treatment. The present invention relates to a medical examination cassette having improved chemical liquid permeability.
[0002]
[Prior art]
As shown in FIG. 17, for example, this type of conventional cassette includes a cassette body 1 and a lid 2 made of a chemical-resistant synthetic resin. The cassette body 1 is a rectangular container having an open top surface, a large number of through-holes 3 at the bottom, and a plate-like recording portion 4 inclined toward the bottom at the outside of one short side wall. And a locking groove 5 on the inside thereof, and a locking portion 6 on the outside of the other side wall.
[0003]
The lid 2 is a detachable plate-shaped body, has a large number of through holes 7 on the plate surface, has a rib 8 fitted into the cassette body along the outer peripheral surface of the back surface, and has one side on the short side. Has an inclined locking piece 9 fitted and engaged along the back surface of the recording portion 4 of the locking groove 5, and a protruding edge slightly larger than the cassette body 1 is provided on the other short side. 10 and a locking piece 11 that engages with the engaging portion 6 (for example, see Patent Document 1).
[0004]
In order to prepare a microscope specimen using the cassette, first, the collected specimen 12 is housed in the cassette body 1 and the lid 2 is attached, and the name and the like of the subject are recorded in the recording unit 4. The inclined locking piece 9 of the lid 2 is engaged with the locking groove 5 of the cassette body 1, and the locking piece 11 is engaged with the locking portion 6 of the cassette body 1 to fix the lid 2.
[0005]
Subsequently, the sample 12 is washed with water through the through holes 7 and 3, water of the sample 12 is removed with alcohol, and affinity with liquid paraffin described later is given with xylene.
[0006]
Next, although not shown, a cassette block in which paraffin embedded with the specimen 12 is adhered to the bottom of the cassette body 1 is obtained. The microscope sample is obtained by performing other predetermined processing.
[0007]
However, a plurality of cassettes are usually stacked or juxtaposed to perform the above-described chemical treatment. However, in the case of the conventional cassette as described above, since the bottom surface of the upper or adjacent cassette and the surface of the lid of the lower or adjacent cassette are in close contact with each other, the through hole 7 of the lid 2 of the upper or adjacent cassette and the cassette The chemical solution that has passed through the through-hole 3 of the main body 1 flows into the cassette main body 1 through the through-hole 7 of the lid 2 of the lower or adjacent cassette as it is, and processes the specimen 12, and then the lower part of the cassette body 1 through the through-hole 3 Alternatively, the operation of flowing into the cassette main body 1 through the through hole 7 of the lid 2 of the adjacent cassette is repeated, so that the permeation of the chemical is substantially only in one direction, and the chemical liquid treatment is not necessarily sufficiently efficient. hard.
[0008]
In order to solve the above problem, as shown in FIG. 18, an identification mark 13 is protruded outside the surface of the lid (square in FIG. 18), and when the cassettes are stacked or juxtaposed, the identification mark 13 is displayed. There has been reported a cassette in which a space portion is formed between cassettes by using a cassette 13 and a chemical solution is allowed to flow into the cassette from the space portion to thereby improve the permeability of the solution (for example, see Patent Document 1).
[0009]
However, as described above, when a projection such as the identification mark 13 is provided only on the outside of the lid 2, as shown in FIGS. Either side falls off from the projection of the lower cassette, and cannot function to form a space, and therefore, it is inevitable that the chemical liquid permeability decreases. In addition, the size of the space S is different between the side that has fallen off and the side that has not fallen off, so that the amount of permeation of the chemical solution becomes non-uniform. As a result, it becomes impossible to perform uniform chemical solution treatment. I'm crazy. These problems also occur when the cassettes are juxtaposed to perform the chemical treatment.
[0010]
[Patent Document 1]
JP-A-2002-5800 (see FIGS. 29 and 1)
[0011]
The present invention solves the drawbacks as described above, and a space is formed between cassettes and cassettes even if the stacked cassettes or adjacent cassettes are displaced. It is an object of the present invention to provide a medical examination cassette in which chemical liquid processing is uniform and processing efficiency is improved by flowing a chemical liquid from between cassettes.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention comprises a cassette body made of a chemical resistant material and a lid, and the cassette body has an open upper surface and can accommodate a sample. In a medical examination cassette having a rectangular container having a large number of through holes and the lid detachably attached to the cassette main body and having a large number of through holes, at least a square outside the surface of the lid is provided. The medical examination cassette is characterized in that a projection for forming a space portion is provided on the inside and at least one projection for forming a space portion is provided inside.
[0013]
In the invention according to claim 2 of the present invention, at least one space portion forming projection provided inside the lid includes the space portion forming projection provided substantially at the center inside the lid. It is a cassette for medical examination.
[0014]
The invention according to claim 3 of the present invention is the medical examination cassette according to claim 1 or 2, wherein the cassette body is divided into a plurality of small chambers by a partition wall.
[0015]
The invention according to claim 4 of the present invention is the medical examination cassette according to any one of claims 1 to 3, wherein the lid and / or the cassette main body are made of a chemical-resistant transparent material.
[0016]
The invention according to claim 5 of the present invention is the medical examination cassette according to any one of claims 1 to 4, wherein the transparent material is a polypropylene resin.
[0017]
The invention according to claim 6 of the present invention is the medical examination cassette according to any one of claims 1 to 4, wherein the transparent material is a polyester resin.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention comprises a cassette body made of a chemical-resistant material and a lid on the surface of a cassette lid, wherein the cassette body has an open upper surface and is a rectangular container capable of accommodating a sample, and a large number of transparent containers. In a medical examination cassette having a hole, the lid being detachably attached to the cassette body, and having a large number of through holes, a space portion forming projection is provided at least in the vicinity of a square outside the surface of the lid. In addition, at least one space portion forming projection is provided inside.
[0019]
The space forming projections according to the present invention are for forming a space (space) for allowing a chemical solution to pass between the cassettes when the cassettes are stacked or juxtaposed.
The space forming projections according to the present invention are provided near at least four corners outside the surface of the lid, and at least one projection is also provided inside. In the present invention, the outside of the lid refers to the outside of the through hole and a portion near the outside, and the remaining portion is referred to as the inside.
[0020]
Outside the surface of the lid, a total of four space portion forming projections are provided, at least one for each square. The upper limit is not particularly limited, and the larger the number of space portion forming projections, the better. However, in consideration of disadvantages such as a complicated mold and an increase in the amount of resin, about 5 (16 in total) are provided on each side. preferable.
[0021]
At least one space portion forming projection is provided inside the surface of the lid. In this case, it is preferable to provide the space portion forming projection provided substantially at the center. The upper limit of the space portion forming projections provided inside is not particularly limited. In this case as well, the larger the space portion forming protrusions, the better. However, considering the cost of the mold and the increase in the amount of resin, the number is preferably about 20. In addition, the position at which the space-forming projection is provided also takes into account the position of the space-forming projection provided outside, and when the cassettes are stacked or juxtaposed, even if the cassette position is misaligned, What is necessary is just to determine so that a sufficient space for transmission may be secured.
The space-forming projection is preferably provided with a height of at least 0.3 mm, more preferably at least 0.5 mm. If the space forming projections are smaller than 0.3 mm, the space formed between the cassettes becomes small, and the effect of improving the permeability of the chemical solution becomes insufficient. The upper limit of the height of the space-forming projection cannot be specified unconditionally depending on the size of the cassette.However, if the height is too high, a space is required for stacking or juxtaposition, processing efficiency is reduced, and handling is easy. become worse. Therefore, about 10 mm is preferable.
[0022]
The material of the cassette of the present invention is preferably a synthetic resin or metal having resistance to chemicals used for preparing a specimen, and examples thereof include polyacetal, polyamide, polycarbonate, polyester, polypropylene, and stainless steel.
Alternatively, the cassette body can be made of resin and the lid can be made of metal, and vice versa.
[0023]
In addition, either the cassette body, the lid, or both are made of a transparent material, so that when only the lid is made of a transparent material, from outside the lid, and when only the cassette body is made of a transparent material, When the cassette body and the lid are both made of a transparent material, the state of the sample inside can be visually confirmed from the outside of the cassette body (side wall or bottom), and from the outside of both the cassette body and the lid. That is, the condition of the sample housed in the cassette (size, number, shape, color, existing position in the cassette main body, when the sample is housed together with the filter paper, the position of the filter paper, the direction of the sample on the filter paper, etc.) This makes it possible to visually recognize the sample clearly, to improve the efficiency and reliability of the preparation of the microscope specimen, and to obtain a highly accurate inspection result.
[0024]
As the transparent material, for example, a polypropylene resin or a polyester (especially PET) resin is preferable, and a polypropylene resin is particularly preferable in terms of excellent chemical resistance and low cost.
[0025]
Further, since the cassette body is divided by a partition wall into a plurality of small chambers, a plurality of specimens are processed at the same time, which is extremely efficient. However, as described above, when an existing device such as a microtome is used, the size of the cassette is limited by itself. Therefore, when a plurality of small chambers are provided, about 2 to 9 pieces are preferable. If the number exceeds nine, the size of the small chamber becomes too small, and the size of the sample to be stored and processed is limited, which may be inconvenient.
[0026]
【Example】
Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments, but it goes without saying that the present invention is not limited to only such embodiments.
[0027]
Example 1
As shown in FIGS. 1 and 2, the medical test cassette according to the present embodiment includes a cassette body 1 made of a chemical-resistant material and a lid 2, and the cassette body 1 has an open upper surface. A rectangular container having a large number of through holes 3, a plate-shaped recording portion 4 sloping divergently toward the bottom on the outside of one short side wall, and a lock inside the recording portion 4. It has a stop groove 5 and a locking portion 6 outside the other side wall.
[0028]
On the other hand, the lid 2 has a large number of through-holes, has a rib 8 fitted into the cassette body 1 along the outer peripheral surface of the back surface, and has a recording portion in the locking groove 5 on one short side. 4 has a slanted locking piece 9 fitted and engaged along the back surface, and a projection edge 10 slightly larger than the cassette body 1 on the other side. It has a piece 11.
[0029]
Further, outside the surface of the lid 2, space portion forming projections (a total of four) 14 are provided near the square, and four space portion forming projections 15 are provided inside. The four inner space forming projections 15 are halved lines A1 and B1 at the center of the lid 2 in the short side direction and the long side direction, and are further divided by two at the center. Assuming that the divided lines are し て lines A2 and B2, the lines are provided near the position where the 線 lines A2 and B2 intersect.
[0030]
By providing the space-forming projections 14 and 15 in this way, even if the stacked or juxtaposed cassettes are displaced in the long side direction and the short side direction as shown in FIGS. And a space S corresponding to the height of the space-forming projections 14 and 15 is formed between them. The inflow and permeation of the chemical solution from the direction can be made uniform, and the effect of treating the sample with the chemical solution becomes uniform and efficient.
[0031]
Example 2
As shown in FIGS. 6 to 8, the cassette for medical examination according to the present embodiment has a total of six spaces in the middle of the square (four) and the long side outside the surface of the lid 2. In addition to the formation projections 14 provided, one space portion formation projection 15 is provided substantially at the center on the inner side, and a two-partition wall is provided on the back surface of the lid 2 with a partition wall 16 standing on the cassette body 1. The configuration is the same as that of the first embodiment except that it is sandwiched by 17 and partitioned into nine small chambers.
[0032]
By providing the space-forming projections 14 and 15 in this manner, even if the stacked or juxtaposed cassettes are shifted in the long side direction or the short side direction as shown in FIGS. And a space S corresponding to the height of the space-forming projections 14 and 15 is formed between them. The inflow and permeation of the chemical solution from the direction can be made uniform, and the effect of treating the sample with the chemical solution becomes uniform and efficient.
[0033]
Example 3
As shown in FIGS. 12 and 13, the cassette for medical examination according to the present embodiment is such that the cassette body 1 is a rectangular container having an open top surface, has a large number of through-holes 3 at the bottom, and has a pair of opposed surfaces. Locking portions 18 and 19 are provided on the side wall.
[0034]
The lid 2 is a plate-like body having a large number of through-holes 7, a protruding edge 10 is protruded at one end, and a tongue-shaped engaging member which is removably engaged with the locking portions 18, 19 at both ends. Stop portions 20, 21 and 22 are respectively provided on the back surface. On the back surface of the lid 2, a rib 8 for fitting with the cassette body 1 is provided upright.
[0035]
Also, two small chambers are defined by the partition wall 23 erected on the cassette body 1 and the partition wall 24 erected on the back surface of the lid 2 facing each other.
[0036]
A total of six space portion forming projections 14 are provided on the outer side of the surface of the lid 2 at the middle (two) of the square (four) and the longer side, and on the inner side, the short side direction is divided into two. Assuming that a line that divides the center line A1 into two in the long side direction is a 線 line B1, and a line that divides the halved part into two substantially at the center and divides it into four is a 線 line B2. Two space portion forming projections 15 are provided near a position where the ４ line B2 intersects with the center line A1 that divides the short side direction into two.
[0037]
By providing the space-forming projections 14 and 15 in this manner, even if the stacked or juxtaposed cassettes are shifted in the long side direction or the short side direction as shown in FIGS. And a space S corresponding to the height of the space-forming projections 14 and 15 is formed between them. The inflow and permeation of the chemical solution from the direction can be made uniform, and the effect of treating the sample with the chemical solution becomes uniform and efficient.
[0038]
It is needless to say that the present invention is not limited to the cassette having the shape as shown in the above embodiment, but can be applied to all cassettes comprising a lid and a cassette body.
[0039]
【The invention's effect】
As described above, when the cassettes for medical examination of the present invention are stacked or juxtaposed, even if the upper and lower cassettes are displaced, the gaps between the cassettes and the cassettes are formed by the space forming projections provided on the lid. Since the space portion is formed, the permeability, the diffusivity, and the contact property with the chemical solution at the time of chemical solution treatment are remarkably improved, and a cassette capable of uniform and efficient chemical solution treatment is provided. .
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a cassette of the present invention.
FIG. 2 is a schematic sectional view in the length direction of the cassette of FIG.
FIG. 3 is a schematic diagram showing a state where the cassette of FIG. 1 is shifted in a length direction.
FIG. 4 is a schematic view showing a state where the cassette of FIG. 1 is shifted in a length direction.
FIG. 5 is a schematic diagram showing a state where the cassette of FIG. 1 is shifted in a width direction.
FIG. 6 is a perspective view showing another embodiment of the cassette of the present invention.
FIG. 7 is a schematic cross-sectional view in the length direction of the cassette of FIG. 6;
FIG. 8 is a schematic cross-sectional view in the width direction of the cassette of FIG. 6;
FIG. 9 is a schematic diagram showing a state where the cassette of FIG. 6 is shifted in the length direction.
FIG. 10 is a schematic view showing a state where the cassette of FIG. 6 is shifted in the length direction.
11 is a schematic diagram showing a state where the cassette of FIG. 6 is shifted in the width direction.
FIG. 12 is a perspective view showing another embodiment of the present invention.
13 is a cross-sectional view in the width direction of the cassette of FIG.
14 is a schematic diagram showing a state where the cassette of FIG. 12 is shifted in the length direction.
FIG. 15 is a schematic diagram showing a state where the cassette of FIG. 12 is shifted in the length direction.
FIG. 16 is a schematic diagram showing a state where the cassette of FIG. 12 is shifted in the width direction.
FIG. 17 is a schematic sectional view showing an example of a conventional cassette.
FIG. 18 is a perspective view showing another example of a conventional cassette.
19 is a schematic view showing a state where the cassette of FIG. 18 is shifted in the length direction.
20 is a schematic diagram showing a state where the cassette of FIG. 18 is shifted in the length direction.
21 is a schematic diagram showing a state where the cassette of FIG. 18 is shifted in the width direction.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cassette main body 2 Cover 3 Through-hole 4 Recording part 5 Locking groove 6 Locking part 7 Through-hole 8 Rib 9 Inclined locking piece 10 Protrusion edge 11 Locking piece 12 Sample 13 Identification display 14 Projection 15 for space part formation Space portion forming projections 16, 17 Partition walls 18, 19 Locking portions 20, 21, 22 Tongue-shaped locking portions 23, 24 Partition wall

Claims (6)

A cassette body made of a chemical resistant material and a lid, wherein the cassette body is a rectangular container having an open upper surface and capable of containing a sample, having a large number of through-holes, and the lid being provided on the cassette body. In a medical examination cassette detachably attached and having a large number of through holes, a space forming projection is provided at least in the vicinity of a square outside the surface of the lid, and at least one space forming is formed inside. A medical examination cassette provided with a projection for use in medical treatment. 2. The medical examination cassette according to claim 1, wherein the at least one space forming projection provided inside the lid includes a space forming projection provided substantially at the center of the inside of the lid. The medical examination cassette according to claim 1 or 2, wherein the cassette body is divided into a plurality of small chambers by a partition wall. The medical examination cassette according to any one of claims 1 to 3, wherein the lid and / or the cassette main body are made of a chemical-resistant transparent material. The medical examination cassette according to any one of claims 1 to 4, wherein the transparent material is a polypropylene resin. The medical examination cassette according to any one of claims 1 to 4, wherein the transparent material is a polyester resin.

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