JP2946048B2 - Cassette with lid for tissue specimen preparation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a cassette with a lid for forming a tissue specimen in which a lid is integrally connected to a cassette base. When the lid is removed from the cassette base after the lid is closed, the lid is opened and removed from the connection base side where the display is not provided. Related to what you can do.

[Prior art]

In order to perform a histopathological examination, it is necessary to make a collected tissue into a tissue specimen according to a certain method. An apparatus used to make this tissue specimen is disclosed in Japanese Patent Publication No. 48-44081. The device described in the above publication has a top-bottom box-shaped bottom mold (hereinafter referred to as an "enclosure tray") having a bottom wall; An open top cassette having a perforated bottom wall; and a removable, multiperforated lid for the cassette; the combination of the cassette and the lid forming a liquid-permeable capsule. The combination of the cassette and the embedding dish forms a tissue paraffin embedding device, and the tissue cassette can be used as a tissue pedestal of the slicer when tissue is sliced. According to this device, tissue is placed inside a capsule consisting of a lid and a cassette, and after the tissue is soaked in paraffin and processed in the capsule, the lid is removed from the capsule to form an opening, and the tissue is removed from the cassette. Is transferred to a box-shaped opening tray at the top, and the set is combined on the top of the opening tray. The melted paraffin is then poured into the dish through a number of holes in the cassette. After the paraffin has solidified, the cassette and the anchored paraffin body surrounding the tissue are separated from the embedding dish, and the set is mounted on a support of a slicing machine for subsequent slicing of the paraffin-embedded tissue. .

[Prior art and its problems]

However, the device disclosed in the above-mentioned publication attaches and detaches a lid to and from the cassette, and when the lid is attached to the cassette, the lateral slot provided in the side edge of the cassette has
The tongue formed on the side edge of the lid must be inserted,
There was a problem that operation was troublesome.

[Object of the invention]

Therefore, an object of the present invention is to make it possible to attach a lid to a cassette with a so-called one-touch operation when attaching the lid, and not to impair the convenience that the lid can be opened and removed from the connection base side at the time of removal. An object of the present invention is to provide a cassette with a lid for preparing a tissue specimen.

Configuration of the Invention

The configuration of the invention adopted to achieve the above object is as follows. In the first invention, a cassette base having a large number of holes at the bottom and an open top and a lid having a large number of holes are provided, and the lid is provided on the base side of the cassette base. The cassette base is connected in an open state via a hinge part, and is engaged with the cassette base by being rotated about the hinge part and is closed. When the lid is closed or after the lid is closed, the cassette base is closed. A cassette with a lid for tissue specimen preparation wherein the hinge portion is broken or detached when the lid is removed from the cassette base when the lid is removed from the cassette base when the lid is closed. A projection having a lid for forming a woven specimen, wherein a projection serving as a finger hook portion is provided, and the projection protrudes from the hinge portion toward the cassette base when the lid is open. . According to the second invention, there is provided a cassette base provided with a large number of holes at the bottom and having an open top, and a lid provided with a large number of holes, wherein the lid is provided on the base side of the cassette base. A cassette with a lid for preparing a tissue specimen, which is connected via a hinge part and is engaged with the cassette base by being rotated about the hinge part so as to be closed. A hinge portion for connecting the cassette base is detachable by engagement, and serves as a finger hook on the connection base side of the lid when removing the lid from the cassette base when the lid is closed. A protruding piece is provided, and the protruding piece protrudes from the hinge portion toward the cassette base when the lid is opened, and is a cassette with a lid for preparing a tissue specimen. According to the third invention, one of the hinge portions connecting the lid and the cassette base is fixed to the other holding side against the elasticity of the other holding side, and a predetermined portion of the fixing portion has an engaging surface. A cassette with a lid for preparing a tissue specimen according to the second invention, wherein the lid is stopped at a required angle by engaging the engagement surfaces with each other. is there.

【Example】

The present invention will be described in more detail with reference to embodiments shown in the drawings. FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a plan view showing a connecting portion between a cassette base and a lid. The cassette base 1 is made of plastic and has a bottom wall 10 in which a plurality of through holes 11 are formed. On the bottom wall 10, vertical side walls 12 and 13, and horizontal side walls 14 and 15 are erected, and are formed in a box-shaped rectangle having an opening 16 at the top. The vertical side walls 12 and 13 and the horizontal side walls 14 and 15 are perpendicular to the vertical and horizontal side walls, respectively, and the top opening is a rectangular upper edge surface 120, 130, 140, 1 forming a flat continuous end face.
Has 50. The outer surface of the side wall 14 has a protruding piece 14 along its upper edge.
1 is formed. A recess 142 is formed at the center of the projection 141. Further, engaging holes 143 are provided on both sides of the lateral side wall 14, and a turning portion 144 is provided between the engaging holes 143. A ramp 151 is provided which connects to and extends downwardly and outwardly from the upper edge of the lateral wall, and the longitudinal walls 12, 13 and adjacent edges are ramped along respective ramps 17, 18. It extends outward beyond the side wall 15 to connect to 151. A central portion of the upper edge surface 150 is cut out to form the horizontal slot 3, and the horizontal slot 3 is a triangular cross section formed between the outer surface of the horizontal side wall 15 and the lower side of the inclined wall 151. Is communicated with a side chamber (not shown). On the other hand, the lid 2 that can be removed from the cassette base 1 has a top plate 20 and is formed in a rectangular shape that closes the opening 16. The top plate 20 has a plurality of through holes 21 over almost the entire surface.
Is provided. Slightly inward from the outer peripheral edge of the top plate 20, there are vertical ridges 22, 23 and horizontal ridges 24, 25, and the vertical ridges 22, 23
The ends of the ridges 24 and 25 are joined to each other to form a square shape so that they can fit into the opening 16. On both sides of the lateral ridge 24, elastic engaging claws 243 having a cross section “L” and having elasticity, which are engaged with the engaging holes 143 when the lid is closed, are erected upward. An engaging claw 4 having an elastic "L" cross section, which is engaged with the lateral slot 3 when the lid is opened, is provided substantially at the center of the lateral ridge 25. On one side edge of the lid 2, there is provided a projection 242 that fits into a recess 142 provided at the center of the projection 141. If a protrusion is provided at an arbitrary position on the top plate 20, the lid 2 can be opened from the engaging portion side. Fig. 2 is shown. FIG. 2 is a plan view showing a connecting portion between the cassette base and the lid. The protruding piece 242 is disposed so as to fit in the concave portion 142 already described. Both sides 242a, 242b of the protrusion 242 and the recess 1
A connecting shaft 5 having a constricted portion 50 in the center is interposed between the two walls 142a and 142b of the 42, whereby the cassette base 1 and the lid 2 are integrally connected. The connecting shaft 5 is located at a distance D from the projection 141 of the cassette base 1 and the projection 242 of the lid 2.
(See FIG. 3). (Operation) The operation of the mold box according to the present embodiment will be described with reference to FIG. The biological tissue S is placed in the cassette base 1 and then the lid 2
To the cassette base 1 side, and twist the connecting shaft 5
Is pressed against the cassette base 1 from above. As a result, the engaging claw 243 is inserted into and engaged with the engaging hole 143.
The engaging claw 4 is inserted and engaged, and the lid 2 can be mounted on the cassette base 1. The connecting shaft 5 is twisted by the rotation of the lid 2, and the constricted portion 50 is thin, and the contact surface 26 of the lid 2 and the cassette base 1 are
Since the upper edge surface 140 is in contact with the upper edge surface 140 and is about to be separated by a distance 2D, the connecting shaft 5 connecting the lid 2 and the cassette base 1 is automatically separated at the same time as the mounting. Even if it cannot be separated, as shown in FIG. 4, the lid 2 is opened from the connecting portion side with the cassette base 1, so that the connecting shaft 5 is necessarily separated at that time. No work is required. Subsequent tissue preparation processing such as immersion in a paraffin solution is the same as in the conventional case. FIG. 5 shows a main part of another embodiment of the present invention and is a perspective view showing a connecting portion between a cassette base and a lid. A bulging portion 741 is formed on the outer surface of the lateral side wall 74 of the cassette base 1 along the upper edge thereof. A recess 742 is formed at the center of the bulge 741. Engaging grooves 743 are provided on both sides of the recess 742, respectively. The engaging groove 743 includes an engaging projection 743a, an engaging wall 743b, and an elastically deformable engaging piece 743c.
It is grooved from. On the other hand, on one side edge of the lid 2, a protruding piece 842 that fits into the recess 742 is provided. On both sides of the protruding piece 842, the engaging groove
743 to connect the lid 2 to the cassette base 1;
An engagement claw 843 formed in a “U” shape stands upright. The top portion 843b of the shaft portion 843a of the engagement claw 843 is formed in a plane. By appropriately setting the position of this plane, the cover 2
Can be set as appropriate. Thus, the engaging claw 843 is pressed into the engaging groove 743 to engage the engaging groove 743 against the elasticity of the engaging piece 743c, whereby the cassette base 1 and the lid 2 are integrally connected. When the lid 2 is rotated around the shaft portion 843a, if the top portion 843b comes into contact with the engagement wall 743b, the rotation of the lid 2 temporarily stops there. Thereafter, the tissue is moved into the cassette base 1, and the lid 2 is further rotated to close the opening of the cassette base 1. Others are almost the same as those in the above embodiment. It should be noted that the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the appended claims.

【The invention's effect】

The present invention has the following effects. (A) The cassette with a lid for preparing a tissue specimen according to the present invention comprises:
Before use, the lid and the cassette base are integrated so that they are not easily lost. Further, the lid can be easily attached to the cassette base simply by rotating the lid toward the cassette base and pressing the lid from above. (B) The cassette with a lid for preparing a tissue specimen according to the present invention comprises:
When the lid is rotated to close the lid, the projection provided on the lid projects horizontally from the hinge portion of the cassette base, so that this portion can be used as a finger hook. Therefore, even if the cassette is of a type in which the lid and the cassette base are integrated before use, when removing the lid from the cassette base after closing the lid, open and remove the lid from the connection base side where the display is not provided, It is possible to prevent characters from disappearing or becoming dirty due to a finger touching the display unit, thereby making it difficult to read. (C) In the case where the hinge portion for connecting the lid and the cassette base is configured to be detachable by engagement, when a finger is put on the projecting piece of the lid and opened on the connection base side, for example, the member is broken by various stresses. It can be removed relatively easily and surely as compared with the case where it is performed. (D) One of the hinge portions for connecting the cassette bases is engaged against the elasticity of the other holding side, and each of the engaging portions has an engagement surface at a required portion. Are engaged with each other so that the lid automatically stops at a required angle, so that the lid does not hang down during operation and is not obstructed, so that the operation is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a plan view showing a connecting portion between a cassette and a lid, FIG. 3 is an explanatory view showing a disconnected state of a connecting shaft, and FIG. FIG. 5 is a perspective view showing a main part of another embodiment of the present invention, showing a connecting portion between the cassette base and the lid. 1: Cassette base 2: Lid 142: Recess 242: Protrusion 5: Connection shaft 743: Engagement groove 843: Engagement claw

Claims (3)

(57) [Claims] 1. A cassette having a bottom provided with a large number of holes and an open top, and a lid provided with a large number of holes, wherein the lid is provided on a base side of the cassette base via a hinge portion. It is connected in an open state, is engaged with the cassette base by being rotated about the hinge, and is closed.When the lid is closed or after the lid is closed, the lid is removed from the cassette base. A cassette with a lid for tissue specimen preparation in which a hinge portion is broken or detached when detached, and a finger hook portion on the connection base side of the lid when detaching the lid from the cassette base when the lid is closed. A cassette with a lid for creating a tissue book, wherein a projection is provided, and the projection protrudes from the hinge portion toward the cassette base when the lid is open. 2. A cassette base having a large number of holes formed at the bottom and an open top, and a lid provided with a large number of holes, wherein the lid is provided at a base side of the cassette base via a hinge. A cassette with a lid for forming a tissue specimen, which is connected to the cassette base and is closed by being rotated about the hinge portion, wherein the lid and the cassette base are combined. The hinge portion to be connected is configured to be detachable by engagement, and a projection serving as a finger hook when the lid is removed from the cassette base when the lid is closed is provided on the connection base side of the lid. The cassette with a lid for preparing a tissue specimen, wherein the projecting piece projects from the hinge portion toward the cassette base when the lid is open. 3. A hinge section for connecting the lid and the cassette base,
One is engaged against the elasticity of the other holding side, and each of the engaging portions has an engagement surface at a required portion. 3. The cassette with a lid for preparing a tissue specimen according to claim 2, wherein the cassette stops at a required angle.