Cleaning device for paraffin tissue section tweezers

Abstract

The utility model discloses a paraffin tissue section tweezers cleaning device which comprises a clamping end, a base component is detachably installed at the top of the clamping end and comprises a connecting part, a fixing sleeve is detachably connected to the top of the connecting part, bristles and a wiping block are arranged on the left side and the right side in the fixing sleeve base component respectively, and the bristles are detachably connected with the connecting part. And the bristles and the wiping block extend out of the top of the fixed sleeve. The paraffin tissue slice cleaning device can quickly and effectively clean tweezers adhered with paraffin tissue slice tissue scraps, and prevents the paraffin tissue slices which are newly cut subsequently from being polluted.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of detector cleaning, in particular to a paraffin tissue section forceps cleaning device. BACKGROUND

[0002] The paraffin tissue section is a method widely used in the routine section technology of histology.

[0003] When the paraffin tissue is sectioned, a brush is usually used to pull the paraffin tissue section flat on the knife rest, and a forceps is used to clamp and transfer the paraffin tissue section to the sectioning instrument, and the forceps may also be used to flatten and divide the paraffin tissue section during the process, and then a suitable section is selected and mounted on a glass slide for use. After mounting, the debris and section tissue remaining on the sectioning instrument need to be cleaned, and the current quick and effective method is to use the previous forceps to clamp out the residual section tissue debris, at this time, the clamp head of the forceps is contaminated with tissue debris, and since there is no device on the sectioning machine for cleaning the clamp head of the forceps, a gauze is usually used for wiping, but the operation is not convenient and affects the work progress; or another new brush is used to clean the clamp head of the forceps, however, the use of two brushes alternately affects the work progress, and the confusion of the experimenters during the sectioning process easily causes the mistake of using the brush for cleaning the forceps to pull the paraffin tissue section flat, or using the brush for pulling the paraffin tissue section flat to clean the forceps, so that the residual tissue debris pollutes the subsequent newly cut paraffin tissue section. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the application is to provide a paraffin tissue section forceps cleaning device which can quickly clean the forceps with paraffin tissue section tissue debris adhered thereto and prevent the subsequent newly cut paraffin tissue section from being polluted.

[0005] To solve the above technical problem, the application adopts the following technical scheme:

[0006] The paraffin tissue section forceps cleaning device is characterized in that the device comprises a clamping end, a base part is detachably mounted on the top of the clamping end, the base part comprises a connecting part, a fixing sleeve is detachably connected to the top of the connecting part, a brush and a wiping block are respectively arranged on the left and right sides of the base part in the fixing sleeve, and the brush and the wiping block extend from the top of the fixing sleeve.

[0007] The cleaning device is clamped on the blocking edge on the right side of the sectioning machine by the clamping end, and the installation and fixation are performed, when the forceps is cleaned, the clamp head of the forceps is moved from left to right to make the clamp head contact the brush, the tissue debris with weak adhesion is wiped, and the tissue debris with strong adhesion can be wiped by pressing on the wiping block.

[0008] In some embodiments, the clamping end is a long-tail clamp, the opening of the clamping end faces downward, and a through hole for mounting the base component is formed in the top of the clamping end.

[0009] In order to make the base component have the functions of fixing the cylindrical sleeve and being detachably mounted on the clamping end, in some embodiments, the connecting part comprises a bottom plate, the circumferential side wall of the bottom plate is provided with a plurality of upward hooks, the bottom of the bottom plate is provided with a protrusion arranged in the through hole in the top of the clamping end, and the bottom of the protrusion is provided with a threaded counterbore; further comprising a gasket, the gasket is arranged on the bottom surface inside the clamping end, and a screw is arranged in the middle of the gasket and screwed into the threaded counterbore.

[0010] According to further expansion of the above scheme, the inner part of the fixing sleeve is connected with a collar, the outer side wall of the collar is provided with an annular clamping groove, and the plurality of hooks are clamped in the clamping groove.

[0011] In order to enable the clamp head of the tweezers to contact the bristles first when moving transversely, in some embodiments, the bristles are higher than the wiping block.

[0012] Compared with the prior art, the present application at least realizes the following beneficial effects: the cleaning device is mounted on the side of the microtome through the clamping end, the experimenters can wipe the clamp head of the tweezers with the bristles of the cleaning device, and preliminarily wipe and clean the tissue debris with weak adhesion on the clamp head, and for the tissue debris with strong adhesion, the tissue debris on the clamp head can be wiped off by pressing and sliding on the top of the wiping block, the cleaning device can effectively clean the tweezers, and prevent the tissue debris from polluting the subsequent newly cut paraffin tissue sections. BRIEF DESCRIPTION OF DRAWINGS

[0013] One or more embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings:

[0014] Figure 1 FIG. 1 is a perspective view of a paraffin tissue section tweezers cleaning device according to an embodiment of the present application;

[0015] Figure 2 FIG. 2 is an exploded view of the clamping end and the base component of the paraffin tissue section tweezers cleaning device according to the present application;

[0016] Figure 3 FIG. 3 is a partial view of FIG. 1; Figure 2 FIG. 4 is a partial view of FIG. 1;

[0017] Figure 4 FIG. 5 is a partial view of FIG. 1; Figure 2 FIG. 6 is a partial view of FIG. 1;

[0018] Figure 5 FIG. 7 is a front view and a cross-sectional view of the paraffin tissue section tweezers cleaning device according to the present application; FIG. 8 is a front view and a cross-sectional view of the paraffin tissue section tweezers cleaning device according to the present application;

[0019] Figure 6 For Figure 5 Local display map at C.

[0020] The figure marks: 1, clamping end; 11, through hole; 2, fixed sleeve; 21, connecting plate; 22, collar; 221, clamping groove; 3, comb; 4, wiping block; 5, lifting rod; 6, bottom plate; 61, protrusion; 611, threaded counterbore; 7, hook body; 8, gasket; 9, screw; 10, lifting plate. DETAILED DESCRIPTION

[0021] The application will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood that the application can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. These embodiments are provided to make the disclosure of the application more complete and to fully convey the concept of the application to those skilled in the art.

[0022] In the description of the application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the application.

[0023] In view of the defect that the existing technology is easy to contaminate the subsequent new cut paraffin tissue section. After careful analysis, the inventors found that the main reason for the above problem is that during the paraffin tissue sectioning process, the experimenter or operator usually holds a hard-bristled brush in the left hand and controls the sectioning machine with the right hand. During the sectioning process, the bristles of the hard-bristled brush are used to flatten the paraffin tissue section on the knife rest, and then the right hand holds a pair of tweezers, and the flattened paraffin tissue section is transferred to the float section instrument by the clamp head of the tweezers, and the paraffin tissue section is selected by the clamp head of the tweezers, and then the paraffin tissue section is mounted on the glass slide. Then, the tweezers clamp head is used to remove the paraffin tissue section debris floating on the float section instrument, and the tweezers clamp head is contaminated with tissue debris. Since there is no special device for cleaning the tweezers clamp head on the sectioning machine, in general, gauze is used to wipe and clean the tweezers clamp head. However, the left hand of the experimenter holds a hard-bristled brush, and if the gauze is used, the hard-bristled brush can only be placed aside after cleaning, and the experimenter needs to hold the hard-bristled brush again. If the experimenter works for a long time, the gauze wiping method will take a lot of time, so it is convenient to directly use the hard-bristled brush used to flatten the tissue section to wipe and clean the clamp head. This method will leave contaminated tissue debris on the hard-bristled brush, which will contaminate the subsequent new cut paraffin tissue section. At present, a new hard-bristled brush is taken to clean the tweezers clamp head. However, this method takes a lot of time like using gauze, and the use of two brushes alternately will cause confusion to the experimenter during the sectioning process, which may cause the experimenter to mistakenly use the hard-bristled brush used to clean the tweezers to flatten the tissue section, or mistakenly use the hard-bristled brush used to flatten the paraffin tissue section to clean the tweezers, thereby contaminating the subsequent new cut paraffin tissue section with residual tissue debris. Based on the above analysis, the inventors designed a device for conveniently wiping and cleaning the clamp head of the tweezers used in the paraffin tissue sectioning process.

[0024] As shown in Figures 1-6 In at least one embodiment of the paraffin tissue sectioning tweezers cleaning device of the present application, a clamping end 1 is used to clamp the edge on the right side of the sectioning machine. A base component is detachably mounted on the top of the clamping end 1. The base component includes a connecting portion, and a fixed sleeve 2 with a length and width substantially equal to the top surface of the clamping end 1 is detachably connected to the top of the connecting portion. The top of the fixed sleeve 2 is open. A brush (preferably a hard-bristled brush) and a wiping block 4 are respectively provided on the left and right sides of the base component inside the fixed sleeve 2, and the brush and the wiping block 4 extend from the top of the fixed sleeve 2.

[0025] The clamping end 1 is preferably improved by using a long-tail clip. The opening of the clamping end 1 faces downward to facilitate clamping the edge on the right side of the sectioning machine. A through hole 11 for mounting the base component is provided on the top of the clamping end 1.

[0026] The connecting part is used to support the fixing sleeve 2 and enable the fixing sleeve 2 to rotate. The connecting part comprises a circular bottom plate 6 and a gasket 8. The sidewall of the bottom plate 6 is provided with at least two upwardly extending hooks 7 (four in the embodiment). As shown in Figure 2 and Figure 3 , the top of the hook 7 is bent towards the middle of the bottom plate 6 (the end of the bend is arc-shaped), and the whole is in the shape of the letter "7". The bottom of the bottom plate 6 is provided with a protrusion 61 which is arranged in a through hole 11 in the top of the clamping end 1. The through hole 11 in the top of the clamping end 1 and the protrusion 61 are both square-shaped, which can limit the rotation of the connecting part. The bottom of the protrusion 61 is provided with a threaded hole 611. The middle of the gasket 8 is provided with a through hole 11 which is arranged on the bottom surface inside the clamping end 1. The through hole 11 in the middle of the gasket 8 is provided with a screw 9 which is screwed into the threaded hole 611, thereby fixing the gasket 8 on the bottom surface inside the clamping end 1. As shown in Figure 5 and Figure 6 , the protrusion 61 at the bottom of the bottom plate 6 does not contact the gasket 8. During the screwing of the screw 9, the cap portion of the screw 9 pushes the gasket 8 and the bottom surface inside the clamping end 1 to be close to each other, and at the same time, the screw 9 pulls the bottom of the bottom plate 6 to contact the top surface of the clamping end 1, so that the gasket 8 and the bottom plate 6 tightly clamp the top of the clamping end 1, and the protrusion 61 is clamped into the through hole 11 in the top surface of the clamping end 1, thereby preventing the base part from loosening and rotating.

[0027] As shown in Figure 2 and Figure 4 , the inside of the fixing sleeve 2 made of plastic is provided with a sleeve ring 22. The sleeve ring 22 and the fixing sleeve 2 are further provided with a connecting plate 21 which is fixedly connected to the inner wall of the fixing sleeve 2 and the outer wall of the sleeve ring 22. The end surface of the connecting plate 21 connected to the fixing sleeve 2 is planar, and the end surface of the connecting plate 21 connected to the sleeve ring 22 is arc-shaped. The outer diameter of the sleeve ring 22 is slightly larger than the end of the bend at the top of the hook 7. The outer sidewall of the sleeve ring 22 is provided with a ring-shaped clamping groove 221, and the top of the hook 7 is clamped in the clamping groove 221. The hook 7 can limit the fixing sleeve 2 from coming out and enable the fixing sleeve 2 to rotate through clamping.

[0028] In this embodiment, the bristles and the wiping block 4 are arranged in the fixed sleeve 2. After a certain period of use, it is found that the bristles and the wiping block 4 will stick to a lot of tissue debris. If the use continues, the effect of cleaning the clamp head of the forceps will be poor. At this time, it may be necessary to replace it. In order to increase the number of uses, the embodiment also provides a lifting assembly. The lifting assembly includes a lifting rod 5 fixedly connected with the top of the base component (i.e. the top of the bottom plate 6). The lifting rod 5 is sleeved with a lifting plate 10 arranged in the fixed sleeve 2. The side wall of the lifting plate 10 and the inner wall of the fixed sleeve 2 have a certain gap. The bottom of the bristles and the wiping block 4 is fixedly connected with the top of the lifting plate 10 on the left and right sides by a hot melt connection. Among them, the bristles occupy two-thirds of the area of the top of the lifting plate 10 in terms of transverse dimension, and the wiping block 4 occupies one-third of the area of the top of the lifting plate 10.

[0029] The base component and the lifting assembly are preferably made of plastic material. The lifting rod 5 is preferably a threaded rod. The bottom of the lifting rod 5 is connected with the top of the bottom plate 6 of the base component by a hot melt fixing method. The middle part of the lifting plate 10 is provided with a threaded hole 11. The lifting rod 5 is screwed into the threaded hole 11. By rotating the lifting rod 5 forward or reversely, the lifting plate 10 moves upward or downward along the lifting rod 5 by threaded transmission.

[0030] When the bristles and the wiping block 4 are full of tissue debris and are difficult to clean, the bristles and the wiping block 4 can be cut off transversely along the top surface of the fixed sleeve 2. Then, the lifting rod 5 is rotated according to the foregoing steps to drive the lifting plate 10 to move upward. The bristles and the wiping block 4 in the fixed sleeve 2 are exposed upward, and the forceps can be used continuously.

[0031] Considering that the trajectory of wiping and cleaning the forceps is usually moving from left to right in general cases, if the comb 3 and the wiping block 4 are flush, the wiping block 4 will be touched during the movement of the forceps and the bristles, which will block and interfere with the movement of the forceps. Therefore, the recommended height of the bristles extending out of the fixed sleeve 2 is 1.5 cm, and the recommended height of the wiping block 4 extending out of the fixed sleeve 2 is 1 cm-1.2 cm, that is, the bristles are higher than the wiping block 4.

[0032] The wiping block 4 is made of a piece of rectangular rubber material or foam sponge body with a certain hardness and elasticity. When cleaning the clamp head of the forceps, the rubber material or foam sponge body will generate a certain friction force. By pressing and sliding on the top of the rubber wiping block 4, the tissue debris can be effectively cleaned.

[0033] The top of the long-tail clip on the market generally has a concave arc-shaped surface, so the bottom surface of the front and rear ends of the fixing sleeve 2 is formed as an arc-shaped protrusion 61 downward to match the clamping end 1 made of the long-tail clip. By matching the arc-shaped protrusion 61 of the bottom surface of the front and rear ends of the fixing sleeve 2 with the concave arc-shaped surface of the top of the clamping end 1, the rotation of the fixing sleeve 2 can be limited when the device is used.

[0034] The embodiment provides an assembling method of the cleaning device:

[0035] First, the base part is installed on the top of the clamping end 1, so that the square protrusion 61 at the bottom of the bottom plate 6 is clamped into the through hole 11 on the top surface of the clamping end 1, and the gasket 8 is installed inside the clamping end 1, the gasket 8 is fixed on the clamping end 1 by screwing the screw 9 into the threaded hole 611 at the bottom of the protrusion 61, then the fixing sleeve 2 is installed between the hooks 7 on the side wall of the bottom plate 6 from top to bottom, specifically, the sleeve ring 22 inside the fixing sleeve 2 is placed on the top of the hook 7, and then the sleeve ring 22 is pressed down, because the diameter of the sleeve ring 22 is slightly larger than the bent end of the top of the hook 7, and the bent end of the top of the hook 7 is arc-shaped, when the sleeve ring 22 is pressed down, the bottom outer wall of the sleeve ring 22 contacts the arc surface of the bent end of the hook 7, and the hook 7 is stretched outward, so that the sleeve ring 22 can move downward, when the clamping groove 221 on the sleeve ring 22 moves to the position of the bent end of the hook 7, the bent end of the hook 7 is clamped into the clamping groove 221, and the fixing sleeve 2 is clamped, finally, the lifting plate 10 is placed on the top of the fixing sleeve 2, the threaded through hole 11 on the lifting plate 10 is aligned with the lifting rod 5 inside the fixing sleeve 2, and the clamping end 1 is rotated in the opposite direction, the clamping end 1 drives the base part and the lifting rod 5 to rotate, the bent end of the hook 7 at four places moves circumferentially in the clamping groove 221, so that the lifting plate 10 enters the bottom of the fixing sleeve 2 through threaded transmission, and the final assembling effect is as shown in Figure 1

[0036] When the cleaning device is used, the handle of the clamping end 1 is pressed to open the opening, and then the opening is clamped on the right side of the clamping end 1, then the clamping head of the forceps with tissue debris is contacted and wiped with the bristles, and for the part with strong adhesion, the tissue debris is separated by pressing and sliding transversely on the top of the wiping block 4.

[0037] If the bristles and the wiping block 4 are too sticky with tissue debris to realize the cleaning function, a scissors or a small knife is used to cut the bristles and the wiping block 4 transversely along the top surface of the fixing sleeve 2, then the left hand holds the fixing sleeve 2, the right hand rotates the clamping end 1 in the forward direction to move the lifting plate 10 upward, and drives the bristles and the wiping block 4 to stretch out of the fixing sleeve 2, then the wiping block 4 is cut again to be lower than the bristles, so that the cleaning device can be used continuously, and the use times are increased.

[0038] ​When the bristles and the wiping block 4 are consumed (i.e. the length of the bristles and the wiping block 4 cannot achieve the cleaning function), the lifting plate 10 is rotated out of the fixed sleeve 2, then a new lifting plate 10 with bristles and wiping block 4 is installed on the lifting rod 5 in the way of the assembling steps, and the lifting plate 10 is lowered into the fixed sleeve 2, and the device can be reused.

[0039] It should be understood that all the above examples are exemplary but not limiting, and various modifications or variations of the specific embodiments described above made by those skilled in the art under the concept of the present application shall be within the protection scope of the present application.

Claims

1. A paraffin tissue section forceps cleaning device, characterized in that, The device includes a clamping end, and a base component is detachably mounted on the top of the clamping end. The base component includes a connecting part, and a fixing sleeve is detachably connected to the top of the connecting part. The left and right sides of the fixing sleeve base component are respectively provided with bristles and wiping blocks, and the bristles and wiping blocks extend from the top of the fixing sleeve.

2. The cleaning device according to claim 1, characterized in that, The clamping end is a long tail clamp with the opening facing downwards and a through hole for mounting the base component at its top.

3. The cleaning device according to claim 2, characterized in that, The connecting part includes a base plate, the side wall of which is provided with several upward-facing hooks, and the bottom of the base plate is provided with a protrusion placed in the through hole at the top of the clamping end. The bottom of the protrusion is provided with a threaded countersunk hole. It also includes a washer, which is located on the bottom surface inside the clamping end. A screw is provided in the middle of the washer, and the screw is screwed into the threaded countersunk hole.

4. The cleaning device according to claim 3, characterized in that, The fixed sleeve is internally connected to a collar, and the outer side wall of the collar has an annular groove, into which several hooks are engaged.

5. The cleaning device according to claim 1, characterized in that, It also includes a lifting assembly, which includes a lifting rod fixedly connected to the top of the base component. A lifting plate is sleeved on the lifting rod and located inside a fixed sleeve. The bottom of the brush bristles and the wiping block are fixedly connected to the top left and right sides of the lifting plate, respectively.

6. The cleaning device according to claim 5, characterized in that, The lifting rod is a threaded rod, and its bottom is fixedly connected to the top of the base plate of the base component; the lifting plate has a threaded through hole in the middle, and is threadedly connected to the lifting rod through the threaded through hole.

7. The cleaning device according to claim 1, characterized in that, The bristles are higher than the wiping block.

8. The cleaning device according to claim 7, characterized in that, The wiping block is made of rubber.

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