JP2001324428A - Cassette for medical test - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cassette for medical tests in which the lid of the cassette can be opened and closed easily and stably using the one hand and workability is improved. SOLUTION: The cassette for medical tests provided with a large number of through-holes comprises both a cassette body 1 made of a chemical-proof material and the lid 2. The cassette body 1 is a square container with an open upper surface, capable of housing a specimen and comprises a large number of through-holes. The lid 2 can be attached to and detached from the cassette body 1 via a rib 8 provided for the back surface of the lid 2. The rib 8 is constituted, in such a way as not to be caught in the cassette body 1 by removing the corner parts of the rib 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical examination cassette used for preparing a microscope specimen for medical examination, and more particularly, to a medical examination which can be easily and stably opened and closed with one hand to improve workability. For cassettes.

[0002]

2. Description of the Related Art As shown in FIG. 13, a conventional cassette of this type 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 upper surface, a large number of through-holes 3 at the bottom, and a plate-shaped recording portion 4 which is 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.

The lid 2 is a detachable plate-like body having a large number of through holes 7 on the plate surface, a rib 8 fitted into the cassette body along the outer peripheral surface of the back surface, and a 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 has a slightly larger size than the cassette body 1 on the other short side. It has a protruding edge portion 10 and a locking piece 11 that engages with the engaging portion 6.

In order to prepare a microscope specimen using the above-mentioned cassette, first, the collected specimen 12 is housed in the cassette main body 1, the lid 2 is attached, and the name and the like of the subject are recorded in the recording section 4. Keep it. The inclined locking piece 9 of the lid 2 engages with the locking groove 5 of the cassette body 1, and the locking piece 11 engages with the locking portion 6 of the cassette body 1 to fix the lid 2.

Subsequently, the specimen 12 is washed with water through the through holes 7 and 3, the water content of the specimen 12 is removed with alcohol, and the affinity with liquid paraffin described later is given with xylene.

Next, as shown in FIG. 14, a liquid paraffin 14 is put in a tray 13 made of stainless steel, the sample 12 is taken out from the cassette body 1 and placed in the liquid paraffin 14 so that the liquid paraffin permeates the sample 12. Subsequently, the cassette main body 1 is placed on the step of the tray 13, and the liquid paraffin 14 is poured onto the specimen 12 until the bottom of the cassette main body 1 is immersed in the liquid paraffin 14.

After the liquid paraffin 14 has solidified, the tray 1
By removing 3, a cassette block 15 (see FIG. 15) in which the paraffin 14 in which the sample 12 is embedded is attached to the bottom of the cassette body 1 is obtained.

Next, as shown in FIG. 15, the cassette block 15 is placed upside down on the base 18 of the adapter 17 mounted on the microtome 16 and fixed. The adapter 17 holds the cassette body 1 between the fixed arm 20 and the movable arm 21 provided on the base 18 by operating the lever 19 and fixes the cassette body 1. At this time, in order to prevent the cassette body 1 from being lifted up due to the inclination of the recording section 4, the locking claws 22 formed at the tips of both arms 20 and 21 are engaged with the corners at the bottom of the cassette body 1. Subsequently, a portion of the paraffin 14 in which the specimen 12 is embedded is sliced in the direction of arrow a, and the sliced slice is stained and subjected to other predetermined processing to obtain a microscope specimen.

[0009]

The above-mentioned cassette usually has tweezers in one hand and a forefinger near the point P of the lid 2 with the other hand as shown in FIG. With the thumb on the edge 10, the point P is slightly pressed with a forefinger to warp both sides of the point P slightly upward, so that the locking piece 11 of the lid 2 is released from the locking portion 6 of the cassette body 1. The sample is removed, the lid 2 is removed upward, and the other one-handed tweezers is operated to store the sample in the cassette body 1. Then, as described above, after performing water washing and chemical treatment, the lid 2 is removed with one hand by the same operation as described above, and the specimen 12 is taken out of the cassette body 1 with the other hand tweezers and placed in the liquid paraffin 14. A cassette block is created.

However, in the conventional cassette as described above, the tip corner 8a of the rib 8 provided on the back surface of the lid 2 on the side of the inclined locking piece 9 is hooked to the tip corner 1a of the side wall of the cassette body 1. If the lid 2 is forcibly lifted upward and removed from the cassette body 1, the lid 2 will be lifted up with the pin at the same time that the tip corner 8a comes off the side wall tip corner 1a. Sample 12 in
Jumps out of the cassette body 1, ruining the valuable specimen 12.

In order to avoid the above-mentioned trouble, once the lid 2 is carefully removed from the cassette body 1 with both hands so that the lid 2 does not pop up, the sample 12 is then removed using tweezers. Efficient work of holding the tweezers and opening the lid with the other hand is not possible, and therefore the workability has to be greatly reduced.

An object of the present invention is to provide a medical examination cassette which solves the above-mentioned disadvantages, can be easily and stably opened and closed with one hand, and has improved workability.

[0013]

The first aspect of the present invention is as follows.
The cassette body comprises a cassette body made of a chemical-resistant material and a lid. The cassette body is a rectangular container having an open upper surface and capable of accommodating a specimen, having a large number of through holes, and one side wall A on the short side.
Outside, a plate-shaped recording portion inclined toward the bottom toward the bottom, a locking groove is provided inside the recording portion, a locking portion is provided outside the other side wall B, and the lid has a large number of transparent portions. With holes,
A rib that fits into the cassette body along the outer peripheral surface of the back surface, and an inclined locking piece that fits into and engages with the locking groove along the back surface of the recording unit on one short side. The medical examination cassette, which has a protruding edge portion slightly larger than the cassette main body on the side and has a locking piece that engages with the locking portion, fits with the inner surface of the side wall A of the cassette main body. A medical examination cassette characterized in that it has a shape in which the corners at the tips of the mating ribs are removed (claim 1).

A second aspect of the present invention comprises a cassette body made of a chemical-resistant material and a lid. The cassette body is a rectangular container having an open upper surface and capable of accommodating a sample, and having a large number of through holes. A recording portion having a plate-like shape which is inclined toward the bottom and flared toward the bottom outside the one side wall A on the short side, and has a locking groove inside the recording portion, and is locked outside the other side wall B. The cover has a number of through holes, has a rib fitted into the cassette body along the outer peripheral surface of the back surface, and has a locking groove on one side of the short side of the recording unit rear surface. Medical device having an inclined locking piece that is fitted and engaged along the same, and a locking piece that is slightly larger than the cassette body on the other side and that engages with the locking portion. In the inspection cassette, the height of a rib fitted to the inner surface of the side wall A of the cassette body is reduced. The cassette and the contents (claim 2).

A third aspect of the present invention comprises a cassette body made of a chemical resistant material and a lid. The cassette body is a rectangular container having an open upper surface and capable of accommodating a sample, and having a large number of through holes. A recording portion having a plate-like shape which is inclined toward the bottom and flared toward the bottom outside the one side wall A on the short side, and has a locking groove inside the recording portion, and is locked outside the other side wall B. The cover has a number of through holes, has a rib fitted into the cassette body along the outer peripheral surface of the back surface, and has a locking groove on one side of the short side of the recording unit rear surface. Medical examination comprising a slanted locking piece fitted and engaged along the other side, and a locking piece engaged on the other side with a protruding edge slightly larger than the cassette body. The cassette for medical examination, characterized in that it has a shape obtained by removing a corner at the inner end of the side wall A. That (claim 3).

In a preferred aspect, the cassette for medical examination according to any one of claims 1 to 3, wherein the cassette main body is partitioned by a partition wall, and the lid has a rib on a back surface for sandwiching the partition wall from both sides. (Claim 4).

In a preferred aspect, the medical examination cassette according to claim 4, wherein the rib has a partition wall sandwiched from both sides, and a tip corner portion on a side contacting with one or both of the partition walls is removed. Claim 5).

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 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.

Embodiment 1 As shown in FIGS. 1 and 2, the medical examination cassette of this embodiment includes a cassette main body 1 made of a chemical-resistant material and a lid 2. A rectangular container having an open upper surface and capable of accommodating a sample, having a large number of through-holes 3, and a plate-shaped recording portion 4 which is inclined toward the bottom toward the bottom outside a short side wall A. It has a locking groove 5 inside thereof and a locking portion 6 outside the other side wall B.

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 the locking groove 5 on one short side. Has an inclined locking piece 9 fitted and engaged along the back surface of the recording unit 4, and has a protruding edge 10 slightly larger than the cassette body 1 on the other side.
It has a locking piece 11 that engages with the locking portion 6.

The rib 8 fitted to the inner surface of the side wall A of the cassette body 1 has a shape in which a corner at the end of the side 8a contacting the inner surface of the end 1a of the side wall A is removed.

The cassette is usually held with tweezers in one hand, and with one hand, for example, as shown in FIG. 2, a forefinger is placed near point P of the lid 2 and a thumb is put on the protruding edge 10 of the lid 2. The locking piece 11 of the lid 2 is disengaged from the locking portion 6 of the cassette body 1 by slightly pressing the point P with an index finger and slightly bending both sides of the point P upward, and removing the lid 2 upward. The sample is accommodated in the cassette body 1 by operating the other hand tweezers. And, as mentioned above,
After water washing and chemical treatment, the lid 2 is removed with one hand by the same operation as described above, and the specimen 12 is taken out of the cassette body 1 with tweezers of the other hand and placed in the liquid paraffin 14 to form a cassette block. .

In this case, since the rib 8 of the lid 2 has a shape in which the corner 8a of the side 8a contacting the inner surface of the tip 1a of the side wall A is removed, the rib 8 and the tip 1a of the side wall A are caught. The lid 2 can be easily and smoothly opened with one hand, and the sample can be easily accommodated in the cassette body 1 and taken out.

In the figure, the corners of the side 8 which is in contact with the inner surface of the tip 1a of the side wall A of the rib 8 are rounded to remove the corners. Good.

The chemical resistant material used in the present invention includes:
There is no particular limitation, and for example, polyacetal, polycarbonate, fluororesin and the like are suitable.

Embodiment 2 As shown in FIGS. 3 and 4, the present invention is applied to an inner surface of a front end 1a of a side wall A of a rib 8 provided on the back surface of a lid 2 to be fitted to an inner surface of a side wall A of a cassette body 1. The second embodiment is the same as the first embodiment except that the height of the side 8a in contact with is reduced. Even in this case,
The lid 2 can be easily and smoothly opened with one hand without the rib 8 and the tip 1a of the side wall A being caught, and the sample can be easily accommodated in and taken out of the cassette body 1.

In FIG. 3, the height of the rib 8 is continuously reduced from the side wall B to the side wall A. However, even if only the vicinity of the side wall A is reduced. Good.

Embodiment 3 As shown in FIGS. 5 and 6, this embodiment is different from Embodiment 1 in that the inside corner of the front end 1a of the side wall A of the cassette body 1 is removed (in the figure, it is inclined). Is the same as Also in this case, the lid 8 can be easily and smoothly opened with one hand without the rib 8 and the tip 1a of the side wall A being caught, so that the sample can be easily accommodated in and taken out of the cassette body 1. it can.

Embodiment 4 In this embodiment, as shown in FIGS.
Are divided into nine small chambers by a partition wall 23 (FIG. 8), and two ribs 8 are provided on both sides of the partition wall 23 so that the lid 2 sandwiches the partition wall 23 from both sides (FIG. 9). The side 8a of the rib 8 of the lid 2 which is in contact with the inner surface of the tip 1a of the side wall A has a configuration in which the height is reduced and the corner of the tip is removed (FIG. 10). Also in this case, the rib 8
And the tip 1a of the side wall A does not get caught,
The lid 2 can be easily and smoothly opened with one hand, and the sample can be easily accommodated in and taken out of the cassette body 1 (nine small chambers).

In the present embodiment, since nine chambers are provided, nine specimens are simultaneously processed. However, the number of chambers is not limited to nine, and a desired number of chambers can be provided. 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, 2 to 9
About the number is preferable. If the number exceeds nine, the size of the small room becomes too small, and the size of the sample to be stored and processed is limited, which may be inconvenient.

Embodiment 5 In this embodiment, as shown in FIG. 12, the corners of the two ribs 8 sandwiching the partition wall 23 from both sides and in contact with the partition wall 23 in the fourth embodiment are further removed. The fourth embodiment is the same as the fourth embodiment except for the configuration described above. With this configuration,
When the lid is opened, the friction between the partition wall 23 and the rib 8 is reduced, so that the one-handed lid opening operation can be performed more easily.

[0032]

As described above, according to the present invention, it is possible to easily and stably open and close the lid with one hand while holding the tweezers with one hand, so that it is not necessary to use both hands. It is efficient, and there is no trouble that valuable samples jump out of the cassette body when opening the lid,
Workability and efficiency are dramatically improved.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an embodiment of a cassette of the present invention.

FIG. 2 is a schematic view showing a state where a lid of the cassette of FIG. 1 is opened.

FIG. 3 is a schematic sectional view showing another embodiment of the cassette of the present invention.

FIG. 4 is a schematic view showing a state where a lid of the cassette of FIG. 3 is opened.

FIG. 5 is a schematic sectional view showing another embodiment of the cassette of the present invention.

FIG. 6 is a schematic view showing a state where a lid of the cassette of FIG. 5 is opened.

FIG. 7 is a top view showing another embodiment of the cassette of the present invention.

FIG. 8 is a top view of the cassette body of the cassette of FIG. 7;

FIG. 9 is a rear view of the lid of the cassette of FIG. 7;

FIG. 10 is a longitudinal sectional view of the cassette of FIG. 7;

11 is a sectional view in the width direction of the cassette of FIG. 7;

FIG. 12 is a schematic sectional view showing still another embodiment of the cassette of the present invention.

FIG. 13 is a schematic sectional view showing a conventional cassette.

FIG. 14 is a schematic cross-sectional view showing a state in which a specimen is embedded in paraffin using a conventional cassette.

FIG. 15 is a schematic diagram showing a state in which the paraffin block obtained in FIG. 14 is sliced with a microtome.

FIG. 16 is a schematic view showing a state where a lid of a conventional cassette is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cassette main body 2 Lid 3 Through-hole 4 Recording part 5 Locking groove 6 Locking part 7 Through-hole 8 Rib 9 Inclined locking piece 10 Projection edge 11 Locking piece 12 Sample 13 Tray 14 Paraffin 15 Cassette block 16 Microtome 17 Adapter 18 Base 19 Lever 20 Fixed arm 21 Movable arm 22 Locking claw

Claims (5)

[Claims] 1. A cassette body comprising 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 accommodating a specimen, having a large number of through holes, and a short side. A plate-shaped recording portion inclined toward the bottom toward the bottom outside the one side wall A, having a locking groove inside, and having a locking portion outside the other side wall B, The lid has a number of through-holes, and has a rib fitted into the cassette body along the outer peripheral surface of the back surface. The inclined locking piece to be fitted, on the other side, has a protruding edge slightly larger than the cassette main body, and in a medical examination cassette comprising a locking piece that engages with the locking portion, A medical examination characterized in that the tip corner of a rib fitted to the inner surface of the side wall A of the cassette body is removed. Cassette. 2. A cassette body comprising 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 accommodating a specimen, having a large number of through holes, and a short side. A plate-shaped recording portion inclined toward the bottom toward the bottom outside the one side wall A, having a locking groove inside, and having a locking portion outside the other side wall B, The lid has a number of through-holes, and has a rib fitted into the cassette body along the outer peripheral surface of the back surface. The inclined locking piece to be fitted, on the other side, has a protruding edge slightly larger than the cassette main body, and in a medical examination cassette comprising a locking piece that engages with the locking portion, A height of a rib fitted to an inner surface of the side wall A of the cassette body is reduced. 3. A cassette body comprising 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 accommodating a specimen, having a large number of through holes, and a short side. A plate-shaped recording portion inclined toward the bottom toward the bottom outside the one side wall A, having a locking groove inside, and having a locking portion outside the other side wall B, The lid has a number of through-holes, and has a rib fitted into the cassette body along the outer peripheral surface of the back surface. In the medical examination cassette, the inclined locking piece to be combined has a projecting edge slightly larger than the cassette body on the other side, and has a locking piece engaged with the locking portion. A medical examination cassette having a shape in which a corner at an inner end of a side wall A is removed. 4. The cassette body is partitioned by a partition wall,
The medical examination cassette according to any one of claims 1 to 3, wherein the lid has a rib on the back surface for sandwiching the partition wall from both sides. 5. The medical examination cassette according to claim 4, wherein the rib has a partition wall sandwiched from both sides and has a shape in which a corner at a tip end in contact with one or both of the partition walls is removed.