Paraffin section calibrating and positioning device

By designing a paraffin section calibration and positioning device, which uses a frame, connecting rod, and level to calibrate the horizontal and vertical axis positions of the sample holder, the problem of inconsistent sample holder angles between different paraffin microtome machines was solved, ensuring the consistency of section quality and the integrity of data.

CN223538564UActive Publication Date: 2025-11-11CHONGQING UNIVERSITY THREE GORGES HOSPITAL
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Patent Information

Application Number
CN202422586576.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-11-11
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

Existing paraffin microtome machines cannot guarantee that the angle of the sample holders is consistent between different hospitals, resulting in incomplete cut surfaces of the paraffin blocks, which may lead to problems such as missed diagnoses.

Method used

A paraffin section calibration and positioning device was designed, including a frame, connecting rod, level and clamping assembly. The horizontal and vertical axis positions of the sample clamps are calibrated by the level to ensure that the sample clamp angles of each paraffin microtome are consistent.

Benefits of technology

This method achieves consistent calibration of sample holder positions on different paraffin microtome machines, avoiding data waste caused by incomplete paraffin block sections and ensuring consistent section quality.

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Abstract

The utility model relates to the technical field of calibration and positioning devices, in particular to a paraffin section calibration and positioning device which comprises a frame, a plurality of connecting rods, a gradienter and two clamping assemblies. The clamping assembly comprises a side plate, a spring, a pull block, a guide rod and a clamping plate; when the paraffin slicing machine is used, the two clamping assemblies are used for clamping the frame on the sample clamp, a doctor obtains the position A of the bubble by observing the position of the bubble on the gradienter so as to obtain the position of the transverse axis and the position of the longitudinal axis of the sample clamp, and when slicing is needed on another paraffin slicing machine, the frame can be clamped on the sample clamp on the other paraffin slicing machine, so that the paraffin slicing machine is convenient to use. The positions of the sample clamps are adjusted until the bubble position on the gradienter moves to the position A, at the moment, it can be guaranteed that the positions of the two sample clamps are consistent, the angle tangent planes of the sample clamps of all the paraffin slicing machines can be kept consistent, and waste of materials due to incomplete tangent planes of paraffin blocks is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of calibration and positioning device technology, and in particular to a paraffin slice calibration and positioning device. Background Technology

[0002] A paraffin microtome is a basic and essential piece of equipment in the pathology department. It is a machine used to cut tissues after embedding them in paraffin.

[0003] Existing paraffin microtome machines are equipped with sample clips for holding paraffin blocks. The sample clips are adjustable in four directions (up, down, left, and right) to allow for parallel sections of different paraffin blocks embedded in the surface. However, the drawback of existing paraffin microtome machines is that doctors cannot know the position of the horizontal and vertical axes of the sample clips. When the same paraffin block is consulted at different hospitals, the angle of the sample clips on different paraffin microtome machines will be different. It is impossible to guarantee that the angle of the sample clips on each paraffin microtome machine is consistent, which will lead to incomplete sections, wasted data, and possible missed diagnoses. Utility Model Content

[0004] The purpose of this invention is to provide a paraffin section calibration and positioning device that can calibrate the position of the horizontal and vertical axes of the sample holders on different paraffin microtome machines, so that the angle of the sample holders of each paraffin microtome machine is consistent, and data is not wasted due to incomplete wax block sections.

[0005] To achieve the above objectives, this utility model provides a paraffin section calibration and positioning device, including a frame, multiple connecting rods, a level, and two clamping components;

[0006] The frame has a receiving groove located inside the frame; multiple connecting rods are respectively disposed on the sides of the frame; the level is fixedly connected to the frame and located at the top of the frame; two clamping assemblies are located on both sides of the frame, each clamping assembly including a side plate, a spring, a pull block, a guide rod, and a clamping plate; the side plate is fixedly connected to the frame and located on the side of the frame; the spring is fixedly connected to the side plate and located on the side of the side plate; the pull block is fixedly connected to the spring and located at the end of the spring away from the side plate; the guide rod is fixedly connected to the pull block and passes through the spring and the side plate; the clamping plate is fixedly connected to the guide rod and located at the end of the guide rod away from the pull block.

[0007] The connecting rod includes a rod body and a bolt; the rod body is located on the side of the frame; the bolt is threadedly connected to the frame and also threadedly connected to the rod body, and is located on the side of the rod body.

[0008] The rod has multiple scale lines, which are located on the sides of the rod.

[0009] This utility model discloses a paraffin section calibration and positioning device. In use, first pull the pull block away from the side plate. The pull block moves the guide rod and the clamping plate, stretching the spring. Then, place the frame outside the sample holder, positioning the sample holder within the receiving groove, and tighten the multiple connecting rods against the sample holder's positioning device. Next, release the pull block. The spring moves the clamping plate, tightening it against the sample holder. The frame is then clamped onto the sample holder using the two clamping plates. At this point, the level is at the top of the sample holder, allowing the doctor to observe the position of the bubble on the level. The bubble position A is obtained, thus determining the position of the horizontal and vertical axes of the sample holder. When sectioning is required on another paraffin microtome, the frame can be clamped onto the sample holder on the other paraffin microtome, and then the position of the sample holder can be adjusted until the bubble position on the level moves to position A. At this point, the positions of the two sample holders can be ensured to be consistent. In this way, the positions of the horizontal and vertical axes of the sample holders on different paraffin microtomes can be calibrated. When the same paraffin block is consulted in different hospitals, the angle section of the sample holders on each paraffin microtome can be kept consistent, avoiding waste of data due to incomplete paraffin block sections. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is another structural schematic diagram of the entire utility model.

[0013] Figure 3 This is a cross-sectional view of the entire utility model.

[0014] Figure 4 This is a schematic diagram of the utility model installed on a paraffin slicer in use.

[0015] 101-Frame, 102-Connecting rod, 103-Level, 104-Clamping assembly, 105-Side plate, 106-Spring, 107-Pull block, 108-Guide rod, 109-Clamping plate, 110-Scale line, 111-Rod body, 112-Bolt, 113-Receiving groove, 114-Paraffin slicer, 115-Sample clip, 116-Positioning device. Detailed Implementation

[0016] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2This is another structural schematic diagram of the entire utility model. Figure 3 This is a cross-sectional view of the entire utility model. Figure 4 This is a schematic diagram of the utility model installed on a paraffin slicer in use.

[0017] This utility model provides a paraffin section calibration and positioning device, including a frame 101, multiple connecting rods 102, a level 103, and two clamping assemblies 104; the clamping assembly 104 includes a side plate 105, a spring 106, a pull block 107, a guide rod 108, and a clamping plate 109; the connecting rod 102 includes a rod body 111 and a bolt 112; the aforementioned solution can calibrate the horizontal and vertical axis positions of the sample clamps 115 on different paraffin slicers 114, so that the angle sectional surface of the sample clamps 115 of each paraffin slicer 114 is consistent, avoiding data waste due to incomplete paraffin block sections.

[0018] In this specific embodiment, the frame 101 has a receiving groove 113 located inside the frame 101; a plurality of connecting rods 102 are respectively disposed on the side of the frame 101; the level 103 is fixedly connected to the frame 101 and is located at the top of the frame 101; two clamping assemblies 104 are located on both sides of the frame 101, and the clamping assembly 104 includes a side plate 105, a spring 106, a pull block 107, a guide rod 108, and a clamping plate 109; the side plate 105 and the frame A frame 101 is fixedly connected and located on the side of the frame 101; a spring 106 is fixedly connected to the side plate 105 and located on the side of the side plate 105; a pull block 107 is fixedly connected to the spring 106 and located at the end of the spring 106 away from the side plate 105; a guide rod 108 is fixedly connected to the pull block 107 and passes through the spring 106 and the side plate 105; a clamping plate 109 is fixedly connected to the guide rod 108 and located at the end of the guide rod 108 away from the pull block 107. In this embodiment, the Leica RM2235 paraffin microtome 114 is used as an example. The level 103 is a commercially available bubble level. The size of the receiving groove 113 is adapted to the outer dimensions of the sample holder 115 of the paraffin microtome 114. In use, first pull the pull block 107 away from the side plate 105. The pull block 107 drives the guide rod 108 and the clamping plate 109 to move, stretching the spring 106. Then, place the frame 101 outside the sample holder 115, so that the sample holder 115 is in the receiving groove 113, and make the multiple connecting rods 102 abut against the positioning device 116 of the sample holder 115. Then, release the pull block 107. The spring 106 drives the clamping plate 109 to move, so that the clamping plate 109 abuts against the sample holder 115. The two clamping plates 109 are used to hold the sample holder 115 in place. The frame 101 is clamped onto the sample holder 115. At this time, the level 103 will be at the top of the sample holder 115. The doctor observes the position of the bubble on the level 103 to obtain the bubble position A, thereby knowing the position of the horizontal and vertical axes of the sample holder 115. When it is necessary to perform sectioning on another paraffin microtome 114, the frame 101 can be clamped onto the sample holder 115 on the other paraffin microtome 114, and then the position of the sample holder 115 can be adjusted until the bubble position on the level 103 moves to position A. At this time, it can be ensured that the positions of the two sample holders 115 are consistent. In the above way, the positions of the horizontal and vertical axes of the sample holders 115 on different paraffin microtome 114 can be calibrated, so that the angle section of the sample holders 115 of each paraffin microtome 114 is consistent, avoiding waste of data due to incomplete paraffin block section.

[0019] The connecting rod 102 includes a rod body 111 and a bolt 112. The rod body 111 is located on the side of the frame 101. The bolt 112 is threadedly connected to the frame 101 and also threadedly connected to the rod body 111, and is located on the side of the rod body 111. The rod body 111 and the frame 101 are provided with threaded holes adapted to the bolt 112, allowing the rod body 111 and the frame 101 to be connected using the bolt 112.

[0020] Secondly, the rod 111 has a plurality of scale lines 110, which are located on the sides of the rod 111. The length of the rod 111 can be determined using the scale lines 110.

[0021] When using this utility model, first pull the pull block 107 away from the side plate 105. The pull block 107 drives the guide rod 108 and the clamping plate 109 to move, stretching the spring 106. Then, place the frame 101 outside the sample holder 115, so that the sample holder 115 is in the receiving groove 113, and make the multiple connecting rods 102 abut against the positioning device 116 of the sample holder 115. Then, release the pull block 107. The spring 106 drives the clamping plate 109 to move, so that the clamping plate 109 abuts against the sample holder 115. The frame 101 is clamped onto the sample holder 115 using the two clamping plates 109. At this time, the level 103 will be at the top of the sample holder 115. The doctor can observe the level by... The position of the bubble on the level 103 is used to obtain bubble position A, thereby determining the position of the horizontal and vertical axes of the sample holder 115. When it is necessary to slice the sample on another paraffin microtome 114, the frame 101 can be clamped onto the sample holder 115 on the other paraffin microtome 114, and then the position of the sample holder 115 can be adjusted until the position of the bubble on the level 103 moves to position A. At this time, it can be ensured that the positions of the two sample holders 115 are consistent. In this way, the positions of the horizontal and vertical axes of the sample holders 115 on different paraffin microtome 114 can be calibrated. When the same wax block is consulted in different hospitals, the angle of the sample holder 115 of each paraffin microtome 114 is kept consistent, avoiding waste of data due to incomplete wax block sections.

[0022] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A paraffin section calibration and positioning device, characterized in that, Includes a frame, multiple connecting rods, a level, and two clamping assemblies; The frame has a receiving groove located inside the frame; multiple connecting rods are respectively disposed on the sides of the frame; the level is fixedly connected to the frame and located at the top of the frame; two clamping assemblies are located on both sides of the frame, each clamping assembly including a side plate, a spring, a pull block, a guide rod, and a clamping plate; the side plate is fixedly connected to the frame and located on the side of the frame; the spring is fixedly connected to the side plate and located on the side of the side plate; the pull block is fixedly connected to the spring and located at the end of the spring away from the side plate; the guide rod is fixedly connected to the pull block and passes through the spring and the side plate; the clamping plate is fixedly connected to the guide rod and located at the end of the guide rod away from the pull block.

2. The paraffin section calibration and positioning device as described in claim 1, characterized in that, The connecting rod includes a rod body and a bolt; the rod body is located on the side of the frame; the bolt is threadedly connected to the frame and also threadedly connected to the rod body, and is located on the side of the rod body.

3. The paraffin section calibration and positioning device as described in claim 2, characterized in that, The rod has multiple scale lines, which are located on the sides of the rod.