JP2019207162A - Cassette for medical examination - Google Patents

Abstract

To provide a cassette for a medical examination capable of being protected from the risk of flowing-out and missing due to water washing and drug solution treatment even though a very soft sample such as a gel-shaped sample is used.SOLUTION: A cassette 100 for a medical examination includes: a cassette body 102 which is a rectangular container having a frame body opened upward, has one or more sample storage parts and has many body pores for causing the inside and the outside of the sample storage parts to communicate with each other; and a lid body 104 attachable to the cassette body 102 and having many lid body pores. In the present invention, the average opening area of the body pores is from 0.01 mmto 0.25 mm, and the average opening area of the lid body pores is from 0.01 mmto 0.25 mm.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a medical examination cassette used for producing a microscope specimen for medical examination, and more specifically, for medical examination that enables uniform water washing and chemical treatment of a specimen regardless of the nature of the specimen. Regarding cassettes.

  In the field of medical examinations, microscope specimens for medical examinations are prepared using specimens collected from living bodies, and various diagnoses are performed.

  In order to prepare a microscopic specimen from a specimen, the specimen is usually washed with water, removed from water with alcohol, and then subjected to a chemical treatment using an organic solvent such as xylene. Thereafter, the chemical-treated specimen is embedded in liquid paraffin, and the paraffin is solidified. Finally, by slicing the obtained paraffin block together with the specimen embedded in it, a slice is produced, and by performing other processing such as staining, the specimen sliced to a predetermined thickness is included. A microscope specimen can be obtained.

  Here, a container called a medical examination cassette is used until the preparation of a microscope specimen using the collected specimen (for example, Patent Document 1). The medical examination cassette is provided with a large number of through-holes that allow communication between the outside and the inside. Since the collected specimen is stored in the cassette and subjected to the water washing and the chemical treatment through the through hole, the chance that the inspector directly touches the specimen is reduced.

  Also, for example, in the examination of prostate cancer, an examination method is employed in which a needle of about 1.5 mm is punctured into the rectal lumen, a plurality of elongated specimens are collected from a portion of the prostate tissue, and examined with a microscope. . In order to perform washing and chemical solution processing on such a specimen, a medical examination cassette capable of arranging a plurality of elongated specimens in parallel has also been proposed (for example, Patent Document 2).

  However, it has been pointed out that in these conventional cassettes for medical examination, it is relatively difficult to produce a microscope specimen using a very soft specimen (for example, a gel specimen).

  This is because a very soft specimen often loses its shape during the above water washing or chemical treatment and flows out from a through hole provided in the cassette. As a result, there is a risk that valuable specimens may be lost through processing using a medical test cassette. In this regard, it is desired to improve a medical examination cassette that enables uniform chemical treatment of a specimen regardless of the nature of the specimen.

JP 2012-194021 A JP 2017-138152 A

  The present invention has an object to solve the above-mentioned problems. The purpose of the present invention is from the risk of spillage and loss due to washing and chemical treatment even if a very soft specimen such as a gel specimen is used. It is to provide a medical test cassette which can be opened.

The present invention is a medical examination cassette,
A cassette body having a rectangular container having an upwardly opened frame, having one or more specimen accommodating portions, and having a plurality of main body pores communicating the inside and the outside of the specimen accommodating portion A lid that is attachable to the cassette body and has a number of lid pores;
Average open area of the body pores is 0.25 mm ² from 0.01 mm ^2, and the average opening area of the lid body pores is 0.25 mm ² from 0.01 mm ^2, a cassette.

  In one embodiment, a chemical | medical solution can flow only between the said lid body pore and the said main body pore.

  In one embodiment, the lid body pore and the main body pore have substantially the same average opening area.

  In one embodiment, the sample storage section is configured in a form divided into a plurality of sections in the cassette body.

  In a further embodiment, the specimen storage part is divided into the plurality of sections by a raised part constituted by a pair of inclined surfaces.

  In a still further embodiment, the main body pores are provided on the pair of slopes so as to be substantially parallel to the vertical direction of the cassette body.

  In one embodiment, the medical test cassette of the present invention is used to test a gel specimen.

  According to the present invention, even if a very soft specimen such as a gel specimen is used, the specimen can be easily prepared without losing the specimen through washing with water or chemical treatment. Moreover, it is not necessary to prepare a plurality of types of medical examination cassettes according to the type of specimen, and a product with excellent versatility can be provided for both the manufacturer and the user.

It is a perspective view which shows an example of the cassette for medical examinations of this invention. It is a schematic diagram of the cassette main body which comprises the cassette for medical examination of this invention shown in FIG. 1, Comprising: (a) is a perspective view of the said cassette main body, and (b) is the partial expansion of the inner bottom face in the said cassette main body. FIG. It is a top view of the cassette main body which comprises the cassette for medical examinations of this invention shown in FIG. It is an AA direction sectional view of the cassette main part shown in FIG. It is a partially expanded sectional view of the bottom part of the cassette main body shown in FIG. It is a figure which represents typically an example of the cover body which comprises the cassette for medical examinations of this invention shown in FIG. 1, (a) is a bottom view of the said cover body, and (b) is (a). It is a BB direction sectional view of the lid shown. It is a figure which shows typically an example of the state which has performed the chemical | medical solution process to the sample using the cassette for medical examinations of this invention shown in FIG. It is a perspective view which shows the other example of the cassette for medical examinations of this invention. It is a schematic diagram of the cassette main body which comprises the cassette for medical examinations of this invention shown in FIG. 8, Comprising: (a) is a perspective view of the said cassette main body, (b) is a top view of the said cassette main body. FIGS. 9A and 9B are schematic views of a lid constituting the medical examination cassette of the present invention shown in FIG. 8, wherein FIG. 9A is a bottom view of the lid and FIG. 8B is C of the lid shown in FIG. It is -C direction sectional drawing. It is a figure which shows typically an example of the state which has given the chemical | medical solution process to the test substance using the cassette for medical examinations of this invention shown in FIG. It is a perspective view which shows another example of the cassette for medical examinations of this invention. It is a schematic diagram of the cassette main body which comprises the cassette for medical examination of this invention shown in FIG. 12, (a) is a perspective view of the said cassette main body, (b) is a top view of the said cassette main body. FIG. 14B is a sectional view in the DD direction of the cassette main body shown in FIG. 13B, and FIG. 14A is a view showing an example of pores provided on the inclined surface constituting the specimen storage unit; b) is a diagram showing another example of the pores provided on the slopes constituting the specimen storage unit. It is the schematic diagram of the cover body which comprises the cassette for medical examinations of this invention shown in FIG. 12, (a) is the bottom view of the said cover body, and (b) was seen from the direction P of (a). It is a side view of the lid. It is a figure which shows typically an example of the state which has performed the chemical | medical solution process to the sample using the cassette for medical examinations of this invention shown in FIG. It is a figure which shows typically an example which produces the paraffin block for obtaining a microscopic examination sample using the test substance washed with water and the chemical | medical solution process using the cassette for medical examination of this invention.

  Hereinafter, the present invention will be described in detail.

  As shown in FIG. 1, a medical examination cassette 100 according to the present invention includes a cassette body 102 and a lid 104.

  The cassette body 102 is a container that opens upward, and the lid 104 is designed to have a size that can cover the opening of the cassette body 102. The cassette body 102 and the lid body 104 are made of, for example, a chemical resistant resin. As an example of the resin constituting the cassette body 102 and the lid body 104, polyacetal resin, fluorine resin, polycarbonate resin, polyamide (nylon) resin, polyester resin, and the like can be given. Other examples of the resin include biodegradable plastics such as polylactic acid resin, polybutylene succinate, polyamide 11, polyhydroxybutyric acid, and biomass plastic.

  FIG. 2 shows an example of a cassette body constituting the medical examination cassette of the present invention shown in FIG.

  As shown in FIG. 2A, the cassette main body 102 includes a square specimen storage unit 110 configured by a frame body 108 extending upward from the outer periphery of the inner bottom surface 106. Here, on the inner bottom surface 106 in the specimen container 110, as shown in FIG. 2B, a large number of pores (hereinafter also referred to as main body pores) 112 that communicate the inside and the outside of the specimen container 110. Is provided.

  On the other hand, referring to FIG. 2A again, the frame body 108 is not provided with, for example, a structure (for example, a hole) that communicates the inside and the outside of the specimen storage unit 110. As a result, the cassette body 102 is fluid only between the upper opening formed by the frame body 108 and the large number of main body pores 112 (for example, washing water, chemical liquid (for example, used for water washing or chemical treatment) Liquids such as alcohol and xylene) can be flowed. If necessary, the frame body 108 may be provided with a large number of pores to increase the flow of these fluids.

  Further, the frame body 108 is provided with a printing unit 114 having a shape in which a part of the outer surface of the cassette body 102 is inclined. The printing unit 114 prints the type of specimen to be accommodated and related information (for example, the specimen number, the collection date and time, the collected patient ID number, and the barcode including the information) using means well known to those skilled in the art. be able to. Further, the frame body 108 is provided with a front locking piece receiving portion 116 and a rear locking piece receiving portion 118 that can receive locking pieces extending from the lid body 104 described later.

  FIG. 3 is a plan view of the cassette body 102 shown in FIG.

In the cassette main body 102, the main body pore 112 is preferably provided with a substantially uniform shape and size over the entire inner bottom surface 106. The main body pore 112 provided in the cassette main body 102 may have, for example, a circular shape, an elliptical shape, or a rectangular shape. Further, in the present invention, the body pores 112 is designed to have an average open area of 0.01mm ² ~0.25mm ^2. When the average opening area of the main body pores 112 is less than 0.01 mm ² , the discharge efficiency (washing of the cleaning water and the chemical solution) from the inner bottom surface 106 of the cleaning water and the chemical solution used for washing and chemical treatment decreases, Chemical treatment may take longer than desired. Moreover, it becomes very difficult to mold the cassette body itself having such an average opening area. When the average opening area of the main body pores 112 exceeds 0.25 mm ² , when the very soft specimen such as a gel specimen is washed or treated with a chemical solution, the specimen may easily flow out from the pores. is there. As shown in FIGS. 4 and 5, in the main body pore 112, each of the constituent holes is drilled so as to be oriented substantially parallel between the inner bottom surface 106 and the outer bottom surface 122 of the bottom 120 of the cassette body 102. It is preferable that

  FIG. 6 shows an example of a lid constituting the medical examination cassette of the present invention shown in FIG.

  As shown in FIGS. 6A and 6B, a large number of pores (hereinafter also referred to as lid pores) 128 are provided in the rectangular region 123 on the bottom surface of the lid 104. The rectangular region 123 is, for example, approximately the same size as the opening portion of the cassette body 102 shown in FIG. 2A, and a slightly raised outer peripheral portion can be fitted into the opening portion of the cassette body 102. Designed to size.

  Further, a front locking piece 124 and a rear locking piece 126 are provided opposite to each other on the back surface of the lid 104. The front locking piece 124 and the rear locking piece 126 are respectively housed and locked in a front locking piece receiving portion 116 and a rear locking piece receiving portion 118 provided in the cassette body 102 shown in FIG. Is possible.

In the lid body 104, the lid body pore 128 is drilled so that the inside (back surface) and the outside (front surface) communicate with each other. Through the lid body pore 128, fluid (for example, liquid such as washing water and chemical liquid (for example, alcohol, xylene) used for water washing and chemical liquid processing) flows arbitrarily from the outside to the inside of the lid body 104. Is possible. The lid pore 128 provided in the lid 104 may have, for example, a rectangular shape, a circular shape, or an elliptical shape. Further, in the present invention, the lid pores 128 is designed to have an average open area of 0.01mm ² ~0.25mm ^2. If the average opening area of the lid body pore 128 is less than 0.01 mm ² , the efficiency of inflow and outflow of the cleaning water and the chemical solution used for washing and chemical treatment into and out of the lid body is reduced, and the washing and chemical treatment are performed. It may take longer than desired. Further, it is very difficult to mold the lid itself having such an average opening area. When the average opening area of the lid pore 128 exceeds 0.25 mm ² , when the very soft specimen such as a gel specimen is washed with water or treated with a chemical solution, the specimen is likely to flow out of the pore together. There is. The lid pore 128 is also drilled in a direction substantially perpendicular to the plane of the lid 104 because fluid can more easily flow from the exterior to the interior of the lid 104. It is preferable.

  In the medical examination cassette of the present invention, for example, a lid pore 128 provided in the lid 104 as shown in FIG. 6 and a body pore 112 provided in the cassette body 102 as shown in FIG. Have substantially the same average opening area. Since the average opening areas of the lid body pore 128 and the body body pore 112 are substantially the same, for example, the test cassette of the present invention is turned over when the gel-like specimen is treated with a chemical solution. Even if there is, the gel-like specimen does not flow out from any pores of the lid 104 and the cassette body 102, and the chemical treatment of the specimen can be appropriately performed in the medical examination cassette of the present invention. it can.

  The cassette main body and the lid constituting the medical examination cassette of the present invention can be manufactured by a method known to those skilled in the art (for example, injection molding).

  As shown in FIG. 7, the medical examination cassette 100 of the present invention accommodates a specimen 180 collected from a living body in a specimen accommodation section 110 of the cassette body 102. Further, the upper portion of the cassette body 102 is covered with the lid body 104, and the front locking piece 124 of the lid body 104 is inserted into the front locking piece receiving portion 116 of the cassette body 102, and the rear locking of the lid body 104 is performed. The lid 104 can be fixed to the cassette body 102 by locking the piece 126 to the rear locking piece receiving portion 118 of the cassette body 102.

  Here, in the embodiment shown in FIG. 7, the accommodable specimen 180 may be a very soft specimen such as a gel specimen. A gel-like specimen is a specimen collected from, for example, a tissue containing a large amount of components such as fat in a living body. Examples of gel specimens include lymph nodes and mammary glands. In the present invention, the cassette body 102 is filled with a fluid 182 such as cleaning water or a chemical solution (for example, alcohol or xylene) through the pore 112 of the cassette body 102 and / or the lid body pore 128 of the lid body 104. Is done. As a result, the specimen 180 can be subjected to any treatment such as washing with water or chemical treatment with the fluid 182. In the present invention, since the main body pore 112 in the cassette body 102 is a fine hole, the specimen 180 is prevented from flowing out of the main body pore 112 and the lid body pore 128 by such water washing or chemical treatment, Only unnecessary washing water or chemical after the water washing or chemical treatment is performed can be discharged from the cassette main body 102 and the lid 104 through the main body pore 112 and the lid pore 128 to the outside.

  FIG. 8 is a perspective view showing another example of the medical examination cassette of the present invention. In FIG. 8, the same components as those in FIG. 1 are denoted by the same reference numerals.

  A medical examination cassette 200 according to the present invention includes a cassette body 202 and a lid 204. The cassette main body 202 and the lid 204 are made of the same material as the cassette main body 102 and the lid 104 shown in FIG.

  As shown in FIG. 9A, the cassette body 202 has an outer periphery surrounded by a frame body 208, and an inner bottom surface 206 is divided into a plurality of specimen storage portions 210 by a plurality of partition plates 232 and 234. Here, as in the case shown in FIG. 2B, a large number of main body pores 112 are provided on the inner bottom surface 206 of the specimen container 210 to communicate the inside and the outside of the specimen container 210. .

  In the cassette main body 202, the divided inner bottom surface 206 has a rectangular shape each having substantially the same area, and a large number of main body pores 112 in each of the divided specimen storage sections 210 are the same as described above. Provided (FIG. 9B). Here, the frame body 208 and the partition plates 232 and 234 are preferably not provided with a structure (for example, a hole) for communicating the inside and the outside of the cassette body 202. As a result, the cassette body 202 is only between the upper opening of each specimen container 210 constituted by the frame body 208 and the partition plates 232 and 234 and the large number of body pores 112 provided in the section. A fluid (for example, a liquid such as cleaning water or a chemical liquid (for example, alcohol or xylene) used for water washing or chemical liquid treatment) can be flowed. As a result, different specimens (for example, patients) and / or types of specimens can be independently accommodated in each specimen accommodating portion 210 of the inner bottom face 206.

  In FIG. 9B, the inner bottom surface 206 of the cassette body 202 is divided into nine sections (specimen accommodating portions) by the partition plates 232 and 234, but the present invention is not necessarily limited to this embodiment. The inner bottom surface 206 of the cassette body 202 may be divided into, for example, two partitions (sample storage units) by one partition plate, and a plurality of partitions (samples) can be arranged by combining a plurality of partition plates. (Accommodating part).

  FIG. 10 shows an example of the lid 204 constituting the medical examination cassette of the present invention shown in FIG.

  As shown in FIGS. 10 (a) and 10 (b), the bottom surface of the lid 204 corresponds to a plurality of sample storage sections 210 provided in the cassette body 202 shown in FIG. 9 (b). A plurality of rectangular regions 223 are provided. Each of the rectangular regions 223 is, for example, substantially the same size as the opening portion of each specimen storage unit 210 provided in the cassette main body 202 shown in FIG. 9A, and a slightly raised outer peripheral portion is a cassette. It is designed to be sized to fit into the opening of the main body 202. Furthermore, a large number of lid pores 128 are provided in the rectangular region 223, as with the lid 104 shown in FIG.

  As shown in FIG. 11, the medical test cassette 200 of the present invention accommodates a specimen 180 (for example, a very soft specimen such as a gel specimen) collected from a living body in a specimen accommodation section 210 of the cassette body 202. Is done. Further, the upper portion of the cassette body 202 is covered with the lid 204, and the front locking piece 124 of the lid 204 is inserted into the front locking piece receiving portion 116 of the cassette body 202, and the rear locking of the lid 204 is performed. The lid 204 can be fixed to the cassette body 202 by locking the piece 126 to the rear locking piece receiving portion 118 of the cassette body 202.

  In the present invention, the cassette main body 202 is filled with a fluid 182 such as cleaning water or a chemical solution through the main body pore 112 of the cassette body 202 and / or the lid body pore 128 of the lid body 204. As a result, the sample 180 disposed in the sample storage unit 210 can be subjected to any treatment such as washing with water or chemical treatment with the fluid 182 in a state in which the outflow of the sample 180 is avoided.

  FIG. 12 is a perspective view showing still another example of the medical examination cassette of the present invention. In FIG. 12, the same components as those in FIG. 1 are denoted by the same reference numerals.

  A medical examination cassette 300 according to the present invention includes a cassette body 302 and a lid 304. The cassette body 302 and the lid 304 are made of the same material as the cassette body 102 and the lid 104 shown in FIG.

  As shown in FIGS. 13A and 13B, the cassette body 302 is divided into a plurality of sections by a raised portion 342 that is surrounded by a frame body 308 and includes a pair of inclined surfaces 340a and 340b. The specimen storage unit 310 is provided. Here, a plurality of raised portions 342 are provided so as to extend in parallel with the longitudinal direction of the cassette body 302 in FIG. The specimen container 310 is constituted by a valley-like and elongated depression formed between the slope 340a of one raised portion 342 and the slope 340b of another raised portion 342 adjacent thereto.

  FIG. 13B shows that the cassette body 302 has the sample storage section 310 divided into six sections, but the present invention is not necessarily limited to this embodiment. In the present invention, a plurality of (for example, at least two) specimen storage portions 310 constituted by such valley-like and elongated depressions can be provided in the cassette body 302. By configuring the sample storage unit 310 in this way, a long and narrow sample can be stored in a substantially straight line, so that the sample can be cleaned and the chemical solution processing can be performed uniformly and efficiently in a short time.

  In the embodiment shown in FIG. 13, a large number of main body pores 312 are provided on each of the inclined surfaces 340 a and 340 b to communicate the inside and the outside of the specimen container 310. The main body pores 312 have a shape similar to that shown in FIG. 3 and an average opening area.

  Note that the pores 312 shown in FIG. 13 are preferably drilled in the cassette body 302 in the direction shown in FIG. 14 (a) or (b) below.

  FIG. 14 is a cross-sectional view in the DD direction of the cassette body 302 shown in FIG. 13B, and shows an example of the pore 312 provided in the inclined surface 340 b constituting the specimen storage unit 310. For example, as shown in FIG. 14A, the pores 312 may be provided on the slope 340b so as to be substantially parallel to the thickness direction of the cassette body 302. Alternatively, the main body pore 312 may be provided so as to be substantially parallel to the width direction of the cassette main body 302 on the inclined surface 340b, for example, as shown in FIG.

  FIG. 15 shows an example of a lid 304 constituting the medical examination cassette of the present invention shown in FIG. In FIG. 15, (a) represents a bottom view of the lid, and (b) represents a side view of the lid as viewed from the direction P of (a).

  As shown in FIGS. 15 (a) and 15 (b), the bottom surface of the lid 304 corresponds to a plurality of sample storage portions 310 provided in the cassette body 302 shown in FIG. 13 (b). A plurality of rectangular regions 323 are provided. The square region 323 is, for example, substantially the same size as the opening portion of the sample storage unit 310 shown in FIG. 13B, and the central portion 346 is raised along the longitudinal direction, so that the sample in the cassette body 302 is formed. It is designed to have a size that can be fitted into the opening of the accommodating portion 310. Further, in the rectangular region 323, through holes 328 formed by aggregating a large number of lid pores are provided in a line on inclined portions 348a and 348b provided with the central portion 346 interposed therebetween. ing.

  The through-hole 328 communicates the inside (back surface) and the outside (front surface) of the lid 304, and from the outside of the lid 304 through the numerous lid pores provided in the through-hole 328. On the other hand, fluids such as washing water and chemicals can be arbitrarily flowed. The lid pores constituting the through holes 328 provided in the lid 304 are the same as those shown in FIG. The through-hole 328 itself may have, for example, a circular shape, an elliptical shape, or a rectangular shape, and the size thereof is sufficient as long as a large number of the lid pores are provided in one through-hole 328. Is not particularly limited. Further, the number of through holes 328 that can be provided on one rectangular region 323 (or the inclined portions 348a and 348b) is not limited, and any number can be selected by those skilled in the art. The through hole 328 is formed in a direction substantially perpendicular to the plane of the lid 304 because the fluid can more easily flow from the outside to the inside of the lid 304. Is preferred.

  As shown in FIG. 16, in the cassette 300 for medical examination of the present invention, an elongate sample 380 (for example, a very soft sample such as a gel sample) collected from a living body is stored in the sample container 310 of the cassette body 302. Be contained. Further, the upper portion of the cassette body 302 is covered with a lid 304.

  In the present invention, a fluid 182 such as cleaning water or a chemical solution is passed through a large number of main body pores 312 provided in the cassette main body 302 and / or a large number of lid body pores 328 provided in the through holes 328 of the lid body 304. Is filled in the cassette body 302. As a result, the elongated specimen 380 disposed in the specimen storage unit 310 can be subjected to any treatment such as washing with water or chemical treatment with the fluid 182 in a state where the elongated specimen 380 is prevented from flowing out.

  A specimen that has been washed with water and treated with a chemical solution using the cassette for medical examination of the present invention is prepared as follows to obtain a paraffin block for obtaining a microscope specimen for medical examination.

  FIG. 17 is a diagram schematically showing an example of producing a paraffin block for obtaining a microscopic examination specimen using a specimen that has been washed with water and / or treated with a chemical using the medical examination cassette of the present invention.

  First, as shown in FIG. 17 (a), a specimen 480 that has been washed with water and / or treated with a chemical solution by the medical examination cassette of the present invention is made of stainless steel from the cassette body 102 constituting the medical examination cassette of the present invention. The cassette main body 102 is placed on the embedding tray 410 and the embedding tray 410 and the cassette main body 102 are filled with liquid paraffin.

  After the liquid paraffin has solidified, the embedding tray 410 is removed, and as shown in FIG. 17B, the paraffin 420 embedded with the water-washed and / or chemical-treated specimen 480 adheres to the cassette body 102. A paraffin block 430 can be obtained.

  Thereafter, although not shown, the paraffin block obtained in this way is placed upside down on the microtome, and the paraffin block is fixed to the microtome by engaging an adapter installed in the microtome with the paraffin block. Then, a desired microscopic sample can be obtained by slicing the paraffin 430 portion in which the specimen 480 shown in FIG. 17B is embedded, and staining the obtained thin piece and performing other predetermined processing.

100, 200, 300 Medical examination cassette 102, 202, 302 Cassette body 104, 204, 304 Lid body 106, 206 Inside bottom surface 108, 208, 308 Frame body 110, 210, 310 Specimen container 112, 312 Body pore 116 Front locking piece receiving portion 118 Rear locking piece receiving portion 122 Outer bottom surface 123, 223, 323 Rectangular region 124 Front locking piece 126 Rear locking piece 128 Lid pore 232, 234 Partition plate 328 Through hole 340a, 340b Slope 342 Raised portion 346 Central portion 348a, 348b Inclined portion

Claims (7)

A medical examination cassette,
A cassette body having a rectangular container having an upwardly opened frame, having one or more specimen accommodating portions, and having a plurality of main body pores communicating the inside and the outside of the specimen accommodating portion A lid that is attachable to the cassette body and has a number of lid pores;
Average open area of the body pores is 0.25 mm ² from 0.01 mm ^2, and the average opening area of the lid body pores is 0.25 mm ² from 0.01 mm ^2, the cassette.   The medical test cassette according to claim 1, wherein the drug solution can flow only between the lid pore and the main body pore.   The cassette for medical examination according to claim 1 or 2, wherein the lid body pore and the body pore have substantially the same average opening area.   The medical test cassette according to any one of claims 1 to 3, wherein the specimen storage unit is configured to be divided into a plurality of sections in the cassette body.   The medical test cassette according to claim 4, wherein the specimen container is divided into the plurality of sections by a raised portion constituted by a pair of inclined surfaces.   The medical test cassette according to claim 5, wherein the main body pores are provided on the pair of inclined surfaces so as to be substantially parallel to a vertical direction of the cassette main body.   The cassette for medical examination according to any one of claims 1 to 6, which is used for examining a gel-like specimen.

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