Removal jig

Abstract

To provide a taking-out jig capable of easily taking an embedded block out.SOLUTION: A taking-out jig is used to take a cassette out of a cassette holder which has a cassette reception part having a side face rib adjoining a side face of a cassette and a plane that a reverse side of the cassette abuts on, and a plate-like part which is extended at a first rib (one of two short sides of the side face rib) substantially in parallel with the plane. On a first face of the taking-out jig in a substantially parallelepiped shape, an insertion hole is provided into which the cassette reception part is inserted. On two opposite side faces (a first side face and a second side face), side face grooves are provided into which a second rib or a third rib (two long sides of the side face rib) are inserted. The second rib and the third rib have a first slit and a second slit arranged on a straight line parallel with the first rib, and the first slit and second slit are arranged along the first plane while the cassette reception part is inserted into the insertion hole and a fourth rib (two short sides of the side face rib) abuts on a bottom face of the insertion hole.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a removal jig. [Background technology]

[0002] Patent Document 1 discloses a medical testing cassette consisting of a cassette body, a lid, and a shielding plate. The cassette body is a rectangular container that opens upward and has multiple through-holes at the bottom, and the lid also has multiple through-holes and is attached to the top of the cassette body. The shielding plate is a plate-like member with multiple protrusions on its top surface, and the protrusions can fit into the through-holes drilled at the bottom of the cassette body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-246076 Summary of the Invention [Problem to be solved by the invention]

[0004] In the invention described in Patent Document 1, a lid is attached to a cassette body, and the cassette is immersed in a chemical solution with the sample sealed inside. At this time, it is necessary to securely fasten the lid to the cassette body so that the lid does not come off the cassette body. However, in the invention described in Patent Document 1, the lid must be removed from the cassette body after the paraffin has solidified, and the embedded block must be removed, which makes removing the embedded block cumbersome and time-consuming.

[0005] The present invention has been made in view of the above circumstances, and has as its object to provide a removal jig that can easily remove an embedded block. [Means for solving the problem]

[0006] In order to solve the above problem, the removal jig of the present invention is, for example, a cassette receiving portion for holding a medical cassette, the cassette receiving portion having a side rib that is rectangular in plan view and arranged adjacent to the side of the cassette and a flat surface against which the underside of the cassette abuts, and a plate-like portion extending approximately parallel to the flat surface on a first rib that is one of the two short sides of the side rib, the removal jig being of approximately rectangular parallelepiped shape for removing the cassette from a cassette holder, the first surface having an insertion hole into which the cassette receiving portion is inserted, and the first and second surfaces, which are two opposing side surfaces of the insertion hole, having side grooves into which the second and third ribs, which are two long sides of the side ribs, are inserted, and when the cassette receiving portion is inserted into the insertion hole and the fourth rib other than the first rib of the two short sides of the side rib abuts against the bottom surface of the insertion hole, the first slit and the second slit, which are arranged in a straight line parallel to the first rib in the second rib and the third rib, are arranged along the first surface.

[0007] According to the removal jig of the present invention, an insertion hole into which a cassette receiving portion is inserted is provided on a first surface of the approximately rectangular parallelepiped removal jig. When the second rib or the third rib (two long sides of the side ribs) is inserted into the side grooves provided on the first and second side surfaces, which are two opposing side surfaces of the insertion hole, and the fourth rib (one of the two short sides of the side rib) abuts against the bottom surface of the insertion hole, the first slit and the second slit provided on the second rib and the third rib on a straight line parallel to the first rib (one of the two short sides of the side rib) are arranged along the first surface. This makes it possible to easily bend the cassette holder (cassette receiving portion) along the line connecting the first slit and the second slit, and therefore the embedded block can be easily removed from the cassette receiving portion.

[0008] The first side surface may be provided along a second surface adjacent to the first surface, and the second side surface may be provided along a third surface adjacent to the first surface and parallel to the second surface. The insertion hole may be exposed to a fourth surface adjacent to the first surface, the second surface, and the third surface, and may be approximately U-shaped when viewed along the first and second side surfaces. When the cassette receiving portion is inserted into the insertion hole and the second rib abuts against the bottom surface, the cassette may be arranged along the periphery of the insertion hole. This allows the cassette to rotate around the line together with the plate-shaped portion and the front half of the cassette receiving portion when the cassette holder is bent. Therefore, the embedded block can be easily peeled off from the cassette receiving portion.

[0009] The fourth surface may have a protruding portion that covers at least a portion of the insertion hole, and when the cassette receiving portion is inserted into the insertion hole and the second rib is in contact with the bottom surface, the protruding portion may abut against the upper surface of the cassette. This allows the cassette to be fixed inside the insertion hole when the cassette holder is bent. Therefore, the embedded block B can be peeled off from the cassette receiving portion with a weak force. Furthermore, there is no need to hold the cassette by hand when bending the cassette holder, making it easy to bend the cassette holder.

[0010] The insertion hole may be exposed on a fifth surface adjacent to the first surface, the second surface, and the third surface, parallel to the fourth surface, and may have a substantially U-shape when viewed along the first side surface and the second side surface. This allows the embedded block B to be peeled off from the cassette receiving part for each of the front half and the back half of the cassette receiving part with one insertion hole.

[0011] The bottom surface may have a bottom surface groove into which the fourth rib is inserted, and the fourth rib may abut against the bottom surface by being inserted into the bottom surface groove. This allows the cassette receiving portion to be held by three sides inside the insertion hole, making it easier to bend the cassette holder.

[0012] The cassette holder may further include a rotating member rotatably mounted on a rotation axis extending parallel to the first surface, the rotating member having a first abutment portion and an opening, and when the cassette receiving portion is inserted into the insertion hole and the second rib abuts against the bottom surface, the first abutment portion abuts against the plate-shaped portion, and the cassette may be exposed from the opening. This allows the cassette holder to be easily bent with a light force, i.e., the embedded block to be peeled off from the cassette holder, without touching the cassette holder and the embedded block.

[0013] The rotating member may have a second abutment portion provided on the first rib and abutting against a cassette retaining claw that engages with the cassette, whereby the cassette retaining claw can be disengaged using the rotating member before bending the cassette holder. [Effects of the Invention]

[0014] According to the present invention, the embedded block can be easily removed. [Brief explanation of the drawings]

[0015] [Figure 1] 1A and 1B are diagrams showing the schematic configuration of a removal jig 1 according to one embodiment of the present invention, in which (A) and (B) are perspective views, (C) is a front view, (D) is a side view, and (E) is a cross-sectional view. [Figure 2] 1A and 1B are diagrams showing an example of a schematic configuration of a cassette holder 100, in which (A) is a front view and (B) is a side view. [Figure 3] 1A and 1B are diagrams showing a cassette holder 100 in which a cassette 101 is provided, in which (A) is a side view and (B) is a cross-sectional view. [Figure 4] 1A and 1B are diagrams showing a schematic view of how a cassette 101 and an embedded block B are removed from a cassette holder 100 using a removal jig 1, (A) and (B) being perspective views, and (C) being a cross-sectional view. [Figure 5]10A to 10C are diagrams showing a schematic view of how a cassette 101 and an embedded block B are removed from a cassette holder 100 using a removal jig 1, where (A), (B), and (C) are perspective views, and (D) is a cross-sectional view. [Figure 6] 1A to 1D are diagrams showing a schematic configuration of a removal jig 2 according to one embodiment of the present invention, in which (A) is a plan view, (B) is a perspective view, (C) is a front view, and (D) is a side view. [Figure 7] This is a diagram showing the process of removing the cassette 101 and the embedded block B from the cassette holder 100 using the removal jig 2, where (A), (B), and (C) are oblique views and (D) and (E) are cross-sectional views. [Figure 8] 1A to 1D are diagrams showing a schematic configuration of a removal jig 3 according to one embodiment of the present invention, in which (A) is a plan view, (B) is a perspective view, (C) is a front view, and (D) is a side view. [Figure 9] This is a schematic diagram showing how the cassette 101 and embedded block B are removed from the cassette holder 100 using the removal jig 3, where (A), (C), and (E) are oblique views, and (B), (D), and (F) are cross-sectional views. [Figure 10] 10(A) and 10(B) are cross-sectional views schematically showing how the cassette 101 and the embedded block B are removed from the cassette holder 100 using the removal jig 3. FIG. [Figure 11] FIG. 1 is a perspective view showing a schematic configuration of a removal jig 4 according to one embodiment of the present invention. [Figure 12] 10(A), 10(B) and 10(C) are cross-sectional views schematically showing how the cassette 101 and the embedded block B are removed from the cassette holder 100 using the removal jig 4. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. The removal tool of the present invention is a device for removing a cassette from a cassette holder that prepares a paraffin-fixed embedded block used in cancer gene panel testing, pathological testing, etc.

[0017] First Embodiment FIG. 1 shows a schematic configuration of a removal jig 1 according to one embodiment of the present invention, where (A) and (B) are perspective views, (C) is a front view, (D) is a side view, and (E) is a cross-sectional view taken along line AA of (C).

[0018] The removal jig 1 has a main body 10 that is approximately rectangular parallelepiped in shape. The main body 10 has six faces 11, 12, 13, 14, 15, and 16. Faces 11 and 12 are approximately parallel, faces 13 and 16 are approximately parallel, and faces 14 and 15 are approximately parallel. Faces 11, 12, 14, and 15 are adjacent to face 13. Face 11 is marked with the letter "1," and face 12 is marked with the letter "2." The letters "1" and "2" indicate the order in which the removal jig 1 is used (described in detail later). Note that the "1" and "2" marked on faces 11 and 12 are not essential.

[0019] The surface 13 (corresponding to the first surface of the present invention) is provided with an insertion hole 20 into which the cassette receiving portion 91 (see FIGS. 2 and 3) of the cassette holder 100 (see FIGS. 2 and 3) is inserted. The cassette holder 100 is a member that holds a medical cassette 101 (see FIG. 3).

[0020] Here, the cassette holder 100 will be described. Fig. 2 is a diagram showing an example of the schematic configuration of the cassette holder 100, with (A) being a front view and (B) being a side view. Fig. 3 is a diagram showing the cassette holder 100 with a cassette 101 provided therein, with (A) being a side view and (B) being a cross-sectional view. In the following description of the cassette holder 100, the upper and lower sides in Fig. 3 will be referred to as the upper and lower sides of the cassette holder 100, respectively.

[0021] The cassette holder 100 mainly includes a cassette receiving portion 91 on which the cassette 101 is placed, and a plate-like portion 92 having a substantially plate shape.

[0022] The cassette receiving portion 91 mainly has a flat surface 91a and side ribs 91b, 91c, 91d, and 91e. When the cassette 101 is installed, the lower surface 101a of the cassette 101 abuts against the flat surface 91a. A plurality of through holes 97 are formed in the flat surface 91a.

[0023] A protrusion 91h is provided on the flat surface 91a so as to protrude downward. The protrusion 91h is hollow inside. In this embodiment, the protrusion 91h has a generally truncated pyramid shape, but the shape of the protrusion 91h is not limited to this. A plurality of through holes 97 are provided in the protrusion 91h. However, the position, shape, and number of the through holes 97 are not limited to this.

[0024] The side ribs 91b, 91c, 91d, and 91e protrude upward from the flat surface 91a. In a plan view of the cassette holder 100 (when the cassette holder 100 is viewed from above), the side rib 91b is approximately rectangular, with the side ribs 91b and 91c defining the long sides and the side ribs 91d and 91e defining the short sides. The side ribs 91b, 91c, 91d, and 91e are provided adjacent to the side surfaces of the cassette 101 when the cassette 101 is installed. The side ribs 91b, 91c, 91d, and 91e are shorter than the height of the cassette 101.

[0025] Side rib 91d (corresponding to the first rib of the present invention) is provided with plate-like portion 92. Plate-like portion 92 is generally plate-shaped and extends generally parallel to flat surface 91a. Plate-like portion 92 is provided with protrusions 95 and 96 that are used to hold cassette holder 100 when cassette holder 100 is immersed in a liquid medicine bottle. Note that protrusions 95 and 96 are not essential.

[0026] The side rib 91d is provided with a cassette pressing claw 91g that engages with the cassette 101 when the cassette 101 is placed in the cassette receiving portion 91. However, the cassette pressing claw 91g is not essential.

[0027] A slit 91i is provided in each of the side ribs 91b and 91c (corresponding to the second rib and third rib of the present invention). The slit 91i is arranged on a straight line 1 parallel to the side rib 91d in a plan view. In this embodiment, the slit 91i is provided across the flat surface 91a, the side ribs 91d and 91e, and the protrusion 91h, but it is sufficient that the slit 91i is provided at least in the side ribs 91d and 91e.

[0028] The side rib 91e (corresponding to the fourth rib of the present invention) is provided with a protrusion 91f against which the front end 101c of the cassette 101 abuts. When the front end 101c abuts against the protrusion 91f and then the rear end 101b of the cassette 101 is inserted into the inside of the side rib 91d, the cassette pressing claw 91g catches on the rear end 101b, and the cassette 101 is attached to the cassette holder 100.

[0029] With a specimen (hereinafter referred to as sample S) placed in the convex portion 91h, the cassette 101 is attached to the cassette receiving portion 91, thereby sealing the sample S inside the cassette holder 100. In this state, the cassette holder 100 is placed in a chemical solution bottle, and the sample S is immersed in the chemical solution. Then, the cassette receiving portion 91 is placed on a paraffin tray (not shown), and paraffin is filled into the inside of the convex portion 91h from above the cassette 101. As the molten paraffin solidifies, the embedded block B with the sample S embedded inside the paraffin and the cassette 101 are integrated, and the embedded block B sticks to the inside of the convex portion 91h. The removal jig 1 is a jig that removes the cassette 101 with the embedded block B integrated therein from the cassette holder 100.

[0030] Returning to the explanation of Figure 1, insertion hole 20 is provided from surface 13 toward surface 16. Insertion hole 20 mainly has a bottom surface 21 and side surfaces 22 and 23 (corresponding to the first and second side surfaces of the present invention). Bottom surface 21 and side surfaces 22 and 23 are approximately perpendicular to each other, and side surfaces 22 and 23 face each other.

[0031] The bottom surface 21 is provided substantially parallel to the surfaces 13 and 16. The bottom surface 21 is provided with a bottom surface groove 26 into which the side surface rib 91e is inserted.

[0032] The side surfaces 22 and 23 are provided along the surfaces 14 and 15 (corresponding to the second and third surfaces of the present invention), respectively. The side surfaces 22 and 23 are provided with side grooves 24 and 25, respectively. The side surface grooves 24 and 25 receive the side surface ribs 91b and 91c.

[0033] The insertion hole 20 is exposed on the surfaces 11 and 12 (corresponding to the fourth or fifth surface of the present invention), and is substantially U-shaped when viewed along the side surfaces 22 and 23.

[0034] Surface 11 is provided with protruding portion 27 that covers at least a portion of insertion hole 20. In this embodiment, protruding portion 27 has a rectangular plate shape when viewed from above, and its thickness is half or less of the thickness of side surfaces 22 and 23. The extending direction of protruding portion 27 is approximately parallel to surface 11.

[0035] Although the protruding portion 27 covers the bottom surface 21 when viewed along the side surfaces 22 and 23, the position and shape of the protruding portion 27 are not limited to this. For example, a strip-shaped protrusion may cover the insertion hole 20 at a position away from the bottom surface 21.

[0036] 4 and 5 are schematic diagrams showing how the cassette 101 and the embedded block B are removed from the cassette holder 100 using the removal jig 1. Fig. 4 shows how the cassette 101 and the half of the embedded block B on the plate-shaped portion 92 side are peeled off from the cassette holder 100, and Fig. 5 shows how the remaining half of the cassette 101 and the embedded block B are peeled off from the cassette holder 100.

[0037] Fig. 4(A) shows the cassette holder 100 inserted into the insertion hole 20, and Figs. 4(B) and (C) show the cassette holder 100 inserted into the insertion hole 20 in a bent state. Figs. 4(A) and (B) are perspective views, and Fig. 4(C) is a cross-sectional view in the same state as (B).

[0038] First, as shown in FIG. 4A, the cassette receiving portion 91 is inserted into the insertion hole 20 with the surface 11 facing up. Because the side rib 91d has the plate-like portion 92, the cassette receiving portion 91 is inserted into the insertion hole 20 so that the side rib 91e faces the back of the insertion hole 20. The side ribs 91b and 91c are inserted into the side grooves 24 and 25, and the side ribs 91b and 91c are slid along the side grooves 24 and 25 to insert the cassette receiving portion 91 all the way into the insertion hole 20. When the cassette receiving portion 91 is inserted all the way into the insertion hole 20, the side rib 91e is inserted into the bottom groove 26 and comes into contact with the bottom surface 21, and a slit 91i (line l) is arranged along the surface 13.

[0039] 4(B) and (C), with the cassette receiving portion 91 inserted all the way into the insertion hole 20, the operator bends the plate-shaped portion 92 downward (see the arrow in FIG. 4(C)). Because the side ribs 91b and 91c are inserted into the side grooves 24 and 25, the rear half of the cassette receiving portion 91 (approximately half of the area including the side rib 91e) is held inside the insertion hole 20. Therefore, only the portion of the cassette holder 100 exposed to the outside of the insertion hole 20 is bent by an external force.

[0040] Since the slits 91i (line 1) are arranged along the surface 13, stress is concentrated between the pair of slits 91i, and the cassette receiving portion 91 is bent along the line 1 connecting the pair of slits 91i. By providing the pair of slits 91i in this way, the cassette holder 100 becomes easier to bend.

[0041] When the cassette receiving portion 91 is inserted all the way into the insertion hole 20, the periphery of the insertion hole 20 on the surface 11 overlaps with the periphery of the cassette 101 excluding the protruding portion 27, and the protruding portion 27 abuts against the top surface 101d of the cassette 101. Therefore, when the cassette holder 100 is bent, the protruding portion 27 presses against the top surface 101d, preventing the cassette 101 from moving, and the cassette receiving portion 91 is bent along the line 1, causing the cassette pressing claws 91g to come off the cassette 101. As a result, the embedded block B is peeled off from the cassette receiving portion 91 in the front half of the cassette receiving portion 91 (approximately half the area including the side rib 91d).

[0042] After the front half of the cassette receiving portion 91 has been peeled off from the embedded block B as shown in Fig. 4, the rear half of the cassette receiving portion 91 is peeled off from the embedded block B as shown in Fig. 5. Fig. 5(A) shows a state in which the cassette holder 100 has been inserted into the insertion hole 20, and Figs. 5(B), (C), and (D) show states in which the plate-like portion 92 of the cassette holder 100 inserted into the insertion hole 20 has been bent. Figs. 5(A), (B), and (C) are perspective views, and Fig. 5(D) is a cross-sectional view in the same state as Fig. 5(B).

[0043] 5(A), the cassette receiving part 91 is inserted into the insertion hole 20 with the surface 12 facing forward. The front half of the cassette receiving part 91 has already been peeled off from the embedded block B, but the cassette holding claws 91g are engaged with the cassette 101 before the cassette receiving part 91 is inserted into the insertion hole 20.

[0044] Since the side rib 91d has a plate-like portion 92, the cassette receiving portion 91 is inserted into the insertion hole 20 so that the side rib 91e is positioned at the back of the insertion hole 20. The side ribs 91b and 91c are inserted into the side grooves 24 and 25, and the side ribs 91b and 91c are slid along the side grooves 24 and 25 to insert the cassette receiving portion 91 to the back of the insertion hole 20. As a result, the side rib 91e is inserted into the bottom groove 26, the side rib 91e abuts against the bottom surface 21, and the slit 91i (line l) is arranged along the surface 13.

[0045] Next, with the cassette receiving portion 91 inserted all the way into the insertion hole 20, the operator pushes the cassette 101 toward the back at position P (see FIGS. 5(A) and 5(B)) near the side rib 91d. Because the side ribs 91b and 91c are inserted into the side grooves 24 and 25, the back half of the cassette receiving portion 91 remains held inside the insertion hole 20, while the portion of the cassette holder 100 exposed to the outside of the insertion hole 20 (the front half of the cassette receiving portion 91) is bent by an external force, as shown in FIGS.

[0046] When the cassette receiving portion 91 is inserted all the way into the insertion hole 20, the periphery of the insertion hole 20 on the surface 12 overlaps with the periphery of the cassette 101. Unlike the surface 11, the surface 12 does not have the protruding portion 27, and therefore the cassette 101 rotates around the line 1 together with the plate-like portion 92 and the front half of the cassette receiving portion 91, and the back half of the cassette receiving portion 91 is peeled off from the embedded block B.

[0047] According to this embodiment, when the cassette receiving part 91 is inserted all the way into the insertion hole 20, the side ribs 91b and 91c are inserted into the side grooves 24 and 25, the rear half of the cassette receiving part 91 is held inside the insertion hole 20, and the slit 91i (line 1) is arranged along the surface 13. This allows the cassette receiving part 91 to be easily bent along the line 1 connecting the pair of slits 91i, and therefore the embedded block B can be easily peeled off from the cassette receiving part 91.

[0048] Furthermore, according to this embodiment, when the cassette receiving portion 91 is inserted all the way into the insertion hole 20, the protruding portion 27 abuts against the upper surface 101d of the cassette 101, so that when the cassette holder 100 is bent, the cassette 101 is fixed inside the insertion hole 20. Therefore, the embedded block B can be easily peeled off from the cassette receiving portion 91 with a weak force.

[0049] Furthermore, according to this embodiment, when the cassette receiving portion 91 is inserted all the way into the insertion hole 20, the periphery of the insertion hole 20 on the surface 12 overlaps with the periphery of the cassette 101, so that when the cassette holder 100 is bent, the cassette 101 rotates around the line 1 together with the plate-shaped portion 92 and the front half of the cassette receiving portion 91. Therefore, the embedded block B can be easily peeled off from the cassette receiving portion 91.

[0050] Furthermore, according to this embodiment, since there is no need to touch the embedded block B when peeling it off from the cassette receiving portion 91, contamination and damage to the embedded block B and the sample S can be prevented.

[0051] Furthermore, according to this embodiment, since the insertion hole 20 is open on both the surfaces 11 and 12, the cassette holder 100 can be inserted into the insertion hole 20 with each of the surfaces 11 and 12 facing up. This allows the embedded block B to be peeled off from the cassette receiving portion 91 in both the front half and the back half of the cassette receiving portion 91 using one insertion hole 20.

[0052] Furthermore, according to this embodiment, bottom surface grooves 26 into which side ribs 91e are inserted are provided on bottom surface 21, so that cassette receiving portion 91 is held by three sides inside insertion hole 20. This allows cassette receiving portion 91 to be firmly held inside insertion hole 20, making cassette holder 100 easier to bend.

[0053] In this embodiment, the insertion hole 20 opens to the surface 11, but the thickness of the main body 10 may be increased so that the insertion hole does not open to the surface 11.

[0054] <Second embodiment> In the first embodiment of the present invention, the insertion holes 20 are open to the surfaces 11 and 12, but the shape of the insertion holes 20 is not limited to this. Below, a removal jig 2 according to a second embodiment of the present invention will be described.

[0055] FIG. 6 shows a schematic configuration of a removal jig 2 according to one embodiment of the present invention, where (A) is a plan view, (B) is a perspective view, (C) is a front view, and (D) is a side view.

[0056] The removal jig 2 has a main body 10A having a substantially rectangular parallelepiped shape. The main body 10A has six faces 11A, 12A, 13A, 14, 15, and 16. Face 11A and face 12A (corresponding to the fourth or fifth face of the present invention) are substantially parallel. Faces 11A, 12A, 14, and 15 are adjacent to face 13A. Face 13A is provided with an insertion hole 20A into which the cassette receiving portion 91 of the cassette holder 100 is inserted.

[0057] The insertion hole 20A is provided from the surface 13A toward the surface 16. The insertion hole 20 mainly has a bottom surface 21A and side surfaces 22 and .

[0058] Bottom surface 21A is provided substantially parallel to surfaces 13A and 16. Bottom surface 21A is provided with bottom surface groove 26 into which side surface rib 91e is inserted. Side surfaces 22A and 23A are provided along surfaces 14 and 15, respectively. Side surface grooves 24 and 25 are provided on side surfaces 22A and 23A, respectively.

[0059] The insertion hole 20A is exposed on the surface 11A and has a generally U-shape when viewed along the side surfaces 22A and 23A. A recess 11a is provided on the surface 11A adjacent to the insertion hole 20A. The insertion hole 20A is not exposed on the surface 12A and has a recess 28 provided facing the surface 12A.

[0060] Figure 7 is a diagram showing a schematic view of how the cassette 101 and the embedded block B are removed from the cassette holder 100 using the removal jig 2. Figure 7(A) shows the state in which the cassette holder 100 is inserted into the insertion hole 20, Figures 7(B) and (D) show the state in which the cassette holder 100 inserted into the insertion hole 20 is bent, and Figures 7(C) and (E) show the state in which the cassette 101 and the embedded block B are removed from the bent cassette holder 100. Figures 7(A), (B), and (C) are perspective views, and Figures 7(D) and (E) are cross-sectional views in the same states as (B) and (C), respectively.

[0061] First, as shown in Fig. 7(A), the cassette receiving portion 91 is inserted into the insertion hole 20A with the surface 11A facing up. The side ribs 91b and 91c are inserted into the side grooves 24 and 25, and the side ribs 91b and 91c are slid along the side grooves 24 and 25 until the side rib 91e is inserted into the bottom groove 26, i.e., the cassette receiving portion 91 is inserted all the way into the insertion hole 20A. As a result, the slit 91i (line 1) is arranged along the surface 13.

[0062] 7(B) and 7(D), with cassette receiving portion 91 inserted all the way into insertion hole 20, the operator places thumb T on recess 11a to press down on top surface 101d of cassette 101, and bends plate-like portion 92 downward (see arrow in FIG. 7(D)). Because side ribs 91b and 91c are inserted into side grooves 24 and 25, the bottom surface of protrusion 91h is in contact with wall surface 28a of recess 28, and slit 91i (line 1) is disposed along surface 13, the deepest half of cassette receiving portion 91 remains held within insertion hole 20A, and only the portion of cassette holder 100 that is exposed to the outside of insertion hole 20A is bent by external force along line 1.

[0063] Since the upper surface 101d is pressed by the thumb T, the cassette 101 does not move when the cassette holder 100 is bent, and the cassette receiving part 91 is bent along the line l, so that the cassette pressing claw 91g comes off the cassette 101, and the embedded block B is peeled off from the cassette receiving part 91 in the front half of the cassette receiving part 91.

[0064] 7(C) and (E), the operator holds the cassette 101 and the embedded block B with his thumb and index finger and pulls the cassette 101 upward (see the arrow in FIG. 7(E)). Because the side ribs 91b and 91c are inserted into the side grooves 24 and 25 and the side rib 91e is inserted into the bottom groove 26, the cassette holder 100 does not move and the back half of the cassette receiving portion 91 is peeled off from the embedded block B.

[0065] According to this embodiment, when the cassette receiving portion 91 is inserted all the way into the insertion hole 20A, the side ribs 91b and 91c are inserted into the side grooves 24 and 25, the rear half of the cassette receiving portion 91 is held inside the insertion hole 20A, and the slit 91i (line 1) is arranged along the surface 13. Therefore, the cassette receiving portion 91 can be easily bent along the line 1 connecting the pair of slits 91i, and the embedded block B can be easily peeled off from the cassette receiving portion 91.

[0066] It is particularly difficult to peel off the embedded block B from the front half of the cassette receiving portion 91. Therefore, by using the removal jig 2 to assist in peeling off the embedded block B from the front half of the cassette receiving portion 91, the work of peeling off the embedded block B from the cassette receiving portion 91 becomes easier.

[0067] Furthermore, according to this embodiment, the bottom surface of the convex portion 91h abuts against the wall surface 28a of the concave portion 28, so that the cassette holder 100 can be easily bent at the slit 91i.

[0068] <Third embodiment> In the first embodiment of the present invention, an operator touches cassette holder 100 inserted into removal jig 1, but force may also be applied to cassette holder 100 without the operator touching cassette holder 100. Hereinafter, a removal jig 3 according to a third embodiment of the present invention will be described.

[0069] Figure 8 shows a schematic configuration of a removal jig 3 according to one embodiment of the present invention, where (A) is a plan view, (B) is a perspective view, (C) is a front view, and (D) is a side view.

[0070] The removal jig 3 has a main body 10B having a substantially rectangular parallelepiped shape and a rotating member 40. The main body 10B has six faces 11B, 12B, 13B, 14A, 15A, and 16A. Face 11B and face 12B (corresponding to the fourth or fifth face of the present invention) are substantially parallel. Faces 11B, 12B, 14A, and 15A are adjacent to face 13B. Face 13B is provided with an insertion hole 20B into which the cassette receiving portion 91 of the cassette holder 100 is inserted, and face 16A is provided with an insertion hole 30 into which the cassette receiving portion 91 of the cassette holder 100 is inserted.

[0071] Furthermore, surfaces 14A and 15A (corresponding to the second and third surfaces of the present invention) are each provided with a rotation shaft 17 to which rotating member 40 is rotatably attached, and a protrusion 18 that protects rotating member 40. Rotation shaft 17 is provided parallel to surface 13B.

[0072] The insertion hole 20B is provided from the surface 13B toward the surface 16A. The insertion hole 20B mainly has a bottom surface 21B and side surfaces 22B and 23B.

[0073] Bottom surface 21B is provided substantially parallel to surfaces 13B and 16A. Side surfaces 22B and 23B are provided along surfaces 14A and 15A, respectively. Side grooves 24A and 25A are provided on side surfaces 22B and 23B, respectively.

[0074] Insertion hole 20B is exposed on surface 11B and has a generally U-shape when viewed along side surfaces 22B and 23B. Surface 11B is provided with a protruding portion 27 that covers at least a portion of insertion hole 20B. Insertion hole 20B is not exposed on surface 12B and has a plate-like portion 29 provided along surface 12B.

[0075] The insertion hole 30 is provided on the surface 16A facing the surface 13B. The insertion hole 30 mainly has a bottom surface 31, side surfaces 32 and 33, and a recess 37.

[0076] The bottom surface 31 is provided substantially parallel to the surfaces 13B and 16A. The bottom surface 31 is provided with a bottom surface groove 36 (see FIGS. 9 and 10) into which the side surface rib 91e is inserted. The side surfaces 32 and 22 are provided along the surfaces 14A and 15A, respectively. The side surfaces 32 and 33 are provided with side surface grooves 34 and 35 (see FIGS. 9 and 10), respectively.

[0077] The insertion hole 30 is exposed on the surface 11B, and has a generally U-shape when viewed along the side surfaces 32 and 33. The insertion hole 30 is not exposed on the surface 12B, and has a recess 37 facing the surface 12B.

[0078] The rotating member 40 is rotatably mounted on the rotating shaft 17. The rotating member 40 mainly has a plate-shaped portion 41 and a protrusion 42. The plate-shaped portion 41 has a flat portion 41a (corresponding to a first abutment portion of the present invention) on the surface 12B side. The plate-shaped portion 41 also has an opening 43. The protrusion 42 has a pointed tip portion 42a (corresponding to a second abutment portion of the present invention).

[0079] Figures 9 and 10 are diagrams showing the process of removing the cassette 101 and the embedded block B from the cassette holder 100 using the removal jig 3. Figures 9(A), (C), and (E) are perspective views, and Figures 9(B), (D), and (F) are cross-sectional views. Figures 10(A) and (B) are cross-sectional views.

[0080] First, as shown in FIGS. 9A and 9B, the cassette receiving portion 91 is inserted into the insertion hole 20B with the surface 11B facing up. The side ribs 91b and 91c are inserted into the side grooves 24A and 25A, and the side ribs 91b and 91c are slid along the side grooves 24A and 25A until the side ribs 91e abut against the bottom surface 21B, i.e., until the cassette receiving portion 91 reaches the very back of the insertion hole 20B. As a result, the slit 91i (line 1) is positioned along the surface 13B. The bottom surface of the protrusion 91h abuts against the wall surface 29a of the plate-like portion 29.

[0081] Next, the rotating member 40 is rotated (see the arrow in FIG. 9(B)) so that the flat portion 41a abuts against the plate-shaped portion 92 and the tip portion 42a abuts against the cassette pressing claw 91g, as shown in FIGS. 9(C) and 9(D). At this time, the cassette 101 is exposed from the opening 43. Then, the rotating member 40 is further rotated (see the arrow in FIG. 9(D)). Because the cassette 101 is exposed from the opening 43, the rotating member 40 can be further rotated.

[0082] 9(E) and (F), the cassette holding claw 91g is pressed with the tip 42a to remove the cassette holding claw 91g from the cassette 101, while the protruding portion 27 holds down the upper surface 101d and bends the portion exposed outside the insertion hole 20A of the cassette holder 100 along the line 1. Since the bottom surface of the convex portion 91h abuts against the wall surface 29a of the plate-shaped portion 29, the cassette receiving portion 91 is easily bent along the line 1. As a result, the embedded block B is peeled off from the cassette receiving portion 91 in the front half of the cassette receiving portion 91.

[0083] After the front half of the cassette receiving portion 91 is peeled off from the embedded block B as shown in Fig. 9, the rear half of the cassette receiving portion 91 is peeled off from the embedded block B as shown in Fig. 10. Fig. 10(A) shows the state in which the cassette holder 100 is inserted into the insertion hole 30, and Fig. 10(B) shows the state in which the plate-shaped portion 92 of the cassette holder 100 inserted into the insertion hole 30 is bent.

[0084] 10(A), the cassette receiving part 91 is inserted into the insertion hole 30 with the surface 11B facing up. The front half of the cassette receiving part 91 has already been peeled off from the embedded block B, but the cassette holding claws 91g are engaged with the cassette 101 before the cassette receiving part 91 is inserted into the insertion hole 30.

[0085] The side ribs 91b and 91c are inserted into the side grooves 34 and 35, and the side ribs 91b and 91c are slid along the side grooves 34 and 35 until the side rib 91e is inserted into the bottom groove 36, that is, the cassette receiving portion 91 is inserted all the way into the insertion hole 30. As a result, the slit 91i (line 1) is positioned along the surface 16A. The bottom surface of the protrusion 91h abuts against the wall surface 37a of the recess 37. The cassette 101 is positioned along the periphery of the insertion hole 30.

[0086] 10(B), with the cassette receiving portion 91 inserted all the way into the insertion hole 20, the operator pushes the cassette 101 downward at position P near the side rib 91d (see the arrow in FIG. 10(B)). Because the side ribs 91b and 91c are inserted into the side grooves 34 and 35 and the side rib 91e is inserted into the bottom groove 36, the cassette 101 and the embedded block B rotate around line 1 together with the plate-shaped portion 92 and the front half of the cassette receiving portion 91 while the rear half of the cassette receiving portion 91 remains held inside the insertion hole 20, and the rear half of the cassette receiving portion 91 is peeled off from the embedded block B.

[0087] According to this embodiment, since the rotating member 40 is used, the cassette holder 100 can be easily bent with a light force, that is, the embedded block B can be peeled off from the cassette holder 100. Moreover, since the rotating member 40 has a tip portion 42a that abuts against the cassette holding claw 91g, the cassette holding claw 91g can be disengaged using the rotating member 40 before the cassette holder 100 is bent.

[0088] Furthermore, according to this embodiment, when the cassette receiving portion 91 is inserted all the way into the insertion hole 30, the periphery of the insertion hole 30 on the surface 11B overlaps with the periphery of the cassette 101, so that when the cassette holder 100 is bent, the cassette 101 rotates around the line 1 together with the plate-shaped portion 92 and the front half of the cassette receiving portion 91. Therefore, the embedded block B can be easily peeled off from the cassette receiving portion 91.

[0089] Furthermore, according to this embodiment, the embedded block B can be peeled off from the cassette holder 100 without touching the embedded block B.

[0090] In this embodiment, since the cassette holder 100 has the cassette pressing claw 91g, the tip 42a presses the cassette pressing claw 91g, but the protrusion 42 and the tip 42a are not essential. If the cassette pressing claw 91g is not present, the protrusion 42 and the tip 42a are also unnecessary.

[0091] In this embodiment, the insertion holes 20B and 30 are provided in the main body portion 10B, but the insertion holes 20B and 30 may be provided in different main body portions.

[0092] In addition, in this embodiment, insertion hole 20B opens to surface 11B, but the thickness of main body 10B may be increased so that the insertion hole does not open to surface 11B. In this case, the insertion hole opens only to surface 13B.

[0093] <Fourth embodiment> In the first embodiment of the present invention, the embedded block B is peeled off in the order of the front half and the back half of the cassette receiving portion 91, but the embedded block B may be peeled off in a single operation. Hereinafter, a removal jig 4 according to a fourth embodiment of the present invention will be described.

[0094] 11 is a perspective view showing a schematic configuration of a removal jig 4 according to one embodiment of the present invention. The removal jig 4 mainly includes a first lever 50 and a second lever 60.

[0095] First lever 50 mainly has a substantially rectangular main body 51 and a rod-shaped grip 54 provided on main body 51. Main body 51 has a hole 52. Hole 52 has recesses 52b (see FIG. 12) and 52c. Grip 54 has a protrusion 55.

[0096] The second lever 60 has a rod-shaped grip portion 61 and a protrusion 62. The protrusion 62 has a pointed tip portion 62a. The second lever 60 is rotatably provided on a rotation shaft 53 provided on the first lever 50.

[0097] Figure 12 is a cross-sectional view showing a schematic view of how the cassette 101 and the embedded block B are removed from the cassette holder 100 using the removal jig 4. Figure 12(A) shows a state in which the cassette holder 100 is placed on the removal jig 4, Figure 12(B) shows a state in which the tip 62a is in contact with the cassette holder 100, and Figure 12(C) shows a state in which the tip 62a is pushed in and the cassette holder 100 is bent.

[0098] 12(A), the cassette holder 100 is placed on the upper surface 51a of the main body 51. At this time, the cassette holder 100 is placed on the upper surface 51a so that the convex portion 91h faces upward, the side rib 91e is brought into contact with the concave portion 52b, and the cassette pressing claw 91g is inserted into the concave portion 52c. As a result, the cassette 101 is inserted into the hole 52.

[0099] When the operator grips the gripping portions 54, 61 in this state, the second lever 60 rotates until the gripping portion 61 abuts against the protrusion 55 (see the arrow in Figure 12(A)). As a result, as shown in Figure 12(B), the tip portion 62a is pushed into the cassette receiving portion 91 along the line 1, and the cassette receiving portion 91 is bent at the line 1. Because the cassette 101 and the embedded block B have high rigidity relative to the cassette receiving portion 91, the cassette 101 and the embedded block B are peeled off from the cassette receiving portion 91 without being bent.

[0100] The cassette 101 and the embedded block B peeled off from the cassette receiving portion 91 fall along the inner circumferential surface 52a of the hole 52 and are discharged from the hole 52, as shown in FIG. 12(C).

[0101] According to this embodiment, the operator can remove the cassette 101 and the embedded block B from the cassette holder 100 without holding the cassette 101 and the embedded block B.

[0102] Although an embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope that does not deviate from the gist of the present invention.

[0103] In the present invention, the term "substantially" is not limited to cases where the two are exactly the same, but also includes errors or deformations to the extent that the identity is not lost. For example, "substantially parallel" and "substantially perpendicular" are not limited to cases where the two are exactly parallel or perpendicular. Furthermore, for example, when simply expressing "parallel" or "orthogonal," it includes not only cases where the two are exactly parallel or perpendicular, but also cases where the two are approximately parallel or approximately perpendicular. [Explanation of symbols]

[0104] 1, 2, 3, 4: Removal jig 10, 10A, 10B: Main body 11, 11A, 11B: Surface 11a: recess 12, 12A, 12B, 13, 13A, 13B, 14, 14A, 15, 15A, 16, 16A: Surface 17: Rotation axis 18: Convex part 20, 20A, 20B: Insertion holes 21, 21A, 21B: Bottom 22, 22A, 22B, 23, 23A, 23B: Side 24, 24A, 25, 25A: Side groove 26: Bottom groove 27: Overhang 28: Recess 28a: Wall 29: Plate-shaped part 29a: Wall 30: Insertion hole 31: Bottom 32, 33: Side 34, 35: Side groove 36: Bottom groove 37: Recess 37a: Wall 40: Rotating member 41: Plate-shaped part 41a: Flat part 42: Protrusion 42a: Tip 43: Opening 50: First lever 51: Main body 51a:Top surface 52: Hole 52a: Inner peripheral surface 52b, 52c: recessed portions 53: Rotation axis 54: Grip part 55: Convex part 60: Second lever 61:Gripping part 62: Protrusion 62a: Tip 91: Cassette holder 91a: Plane 91b, 91c, 91d, 91e: Side ribs 91f: Protrusion 91g: Cassette presser foot 91h: Convex 91i: Slit 92: Plate-shaped part 95, 96: Protrusion 97: Through hole 100: Cassette holder 101: Cassette 101a: Bottom surface 101b: Rear end 101c: Front end 101d:Top surface

Claims

1. a cassette holder having a cassette receiving portion for holding a medical cassette, the cassette receiving portion having a side rib that is rectangular in plan view and provided adjacent to a side surface of the cassette and a flat surface against which the underside of the cassette abuts; and a plate-like portion extending substantially parallel to the flat surface on a first rib that is one of two short sides of the side rib, the plate-like portion comprising: an insertion hole into which the cassette receiving portion is inserted is provided on the first surface; a first side surface and a second side surface, which are two opposing side surfaces of the insertion hole, are provided with side grooves into which a second rib or a third rib, which are two long sides of the side ribs, is inserted; When the cassette receiving portion is inserted into the insertion hole and a fourth rib other than the first rib among the two short sides of the side rib abuts against the bottom surface of the insertion hole, the first slit and the second slit provided on the second rib and the third rib on a straight line parallel to the first rib are arranged along the first surface. A removal jig characterized by:

2. the first side surface is provided along a second surface adjacent to the first surface, the second side surface is provided along a third surface adjacent to the first surface and parallel to the second surface; the insertion hole is exposed on a fourth surface adjacent to the first surface, the second surface, and the third surface, and has a substantially U-shape when viewed along the first side surface and the second side surface; When the cassette receiving portion is inserted into the insertion hole and the fourth rib is in contact with the bottom surface, the cassette is disposed along the periphery of the insertion hole.

2. The removal jig according to claim 1.

3. The fourth surface is provided with a protruding portion that covers at least a portion of the insertion hole, When the cassette receiving portion is inserted into the insertion hole and the fourth rib is in contact with the bottom surface, the protruding portion abuts against the top surface of the cassette.

3. The removal jig according to claim 2.

4. The insertion hole is exposed on a fifth surface adjacent to the first surface, the second surface, and the third surface, the fifth surface being parallel to the fourth surface, and has a substantially U-shape when viewed along the first side surface and the second side surface.

4. The removal jig according to claim 3.

5. a bottom groove into which the fourth rib is inserted is provided on the bottom surface; The fourth rib is inserted into the bottom surface groove, so that the fourth rib abuts against the bottom surface. The removal jig according to any one of claims 1 to 4.

6. a rotating member rotatably provided on a rotation axis extending parallel to the first surface, The rotating member has a first contact portion and an opening, When the cassette receiving portion is inserted into the insertion hole and the second rib is in contact with the bottom surface, the first contact portion is in contact with the plate-like portion, and the cassette is exposed from the opening. The removal jig according to any one of claims 1 to 5.

7. The rotating member has a second contact portion provided on the first rib and contacting a cassette pressing claw that engages with the cassette.

7. The removal jig according to claim 6.

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