Pathological diagnosis wax block trimming and cutting guide ruler

Abstract

The utility model relates to medical instrument technical field discloses pathological diagnosis wax block finishing cutting guide ruler, including main ruler, both ends of main ruler all are provided with extension assembly, one side of main ruler is provided with limiting assembly, and extension assembly includes the sliding slot of being opened in the both sides of main ruler. This pathological diagnosis wax block finishing cutting guide ruler, through the sliding cooperation of the main ruler and the ruler, can flexibly adjust the overall length of guide ruler, can cover the finishing demand of small size wax block, can also adapt to strip, large size wax block, need not segment finishing, avoids the splicing error of traditional fixed length tool because of not covering completely, ensures that wax block edge is even, parallel, meets the requirement that slicer clamping surface is even, promotes the follow -up slice quality, and the double sliding restraint of combining T type block and T type groove, sliding block and auxiliary groove effectively limits the motion trail of ruler, can ensure that ruler always keeps parallel with main ruler, avoids the cutting track skew of ruler deviation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a guide ruler for trimming and cutting pathological diagnostic wax blocks. Background Technology

[0002] The paraffin block trimming and cutting guide ruler is a specialized tool used in the paraffin section preparation process of the pathology department to assist in the standardized trimming of paraffin-embedded tissue blocks. Its core function is to solve problems such as trajectory deviation, size loss, and uneven tissue exposure when manually trimming paraffin blocks through physical structure guidance, precise scale positioning, and stable constraint design. It provides paraffin block morphology that meets the standards for subsequent microtome adaptation, pathological staining, and diagnosis, and is a key auxiliary device connecting paraffin embedding and pathological sections.

[0003] However, existing paraffin block trimming and cutting guides for pathological diagnosis have the following drawbacks:

[0004] (1) The size of pathological paraffin blocks varies greatly depending on the tissue specimen. A guide ruler of fixed length is difficult to cover the entire range. When trimming, the part that exceeds the length of the ruler lacks effective guidance and may need to rely on manual estimation of the cutting trajectory. This can easily lead to the paraffin block edges being crooked and non-parallel, making it difficult to meet the requirement of a flat clamping surface of the microtome, which in turn affects the quality of subsequent sections.

[0005] (2) The operating table materials of different laboratories are diverse, and a single constraint method is difficult to fully adapt to multiple materials. It is inconvenient to form effective adsorption on rough wooden tabletops by suction cups alone, and bolt fixing is difficult to implement on glass tabletops.

[0006] Therefore, this utility model provides a guide ruler for trimming and cutting paraffin blocks for pathological diagnosis. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The problem solved by this utility model is to provide a highly practical guide ruler for trimming and cutting paraffin blocks for pathological diagnosis, which solves the problems mentioned in the background art, namely that a fixed-length guide ruler is difficult to cover the entire range and a single constraint method is difficult to fully adapt to various materials.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a pathological diagnosis paraffin block trimming and cutting guide ruler, including a main ruler, both ends of which are provided with extension components, and one side of the main ruler is provided with a limiting component;

[0011] The extension assembly includes sliding grooves on both sides of the main scale, with measuring scales slidably connected to the inner walls of both sliding grooves. The measuring scales are adapted to the sliding grooves. A T-slot is provided at the bottom of the main scale. T-blocks are fixedly connected to the bottom of both measuring scales. The T-blocks are adapted to the T-slots. Two symmetrically arranged sliders are fixedly connected to the bottom of the two measuring scales.

[0012] The limiting component includes mounting plates fixedly connected to the four corners of the bottom of the main scale. Each mounting plate has a suction cup installed on its bottom. Two symmetrically arranged mounting blocks are fixedly connected to one side of the main scale. Threaded holes are opened on the surface of each mounting block. Bolts are threadedly connected to the inner sidewalls of each threaded hole, and the bolts are adapted to the threaded holes.

[0013] Optionally, an anti-slip pad is fixedly connected to the bottom of the T-block. The anti-slip pad is made of rubber, which can increase the friction with the work surface and further prevent the T-block from causing the measuring tape to slide in the T-slot.

[0014] Optionally, the main scale and the two dividing scales are provided with graduation lines on their surfaces. The graduation lines are arranged linearly to provide a precise length and size reference for trimming and cutting the pathological paraffin block. This allows operators to accurately control the cutting position and range according to the actual size of the paraffin block and trimming needs, ensuring that the trimmed paraffin block meets the size requirements of subsequent pathological slide preparation and other operations.

[0015] Optionally, a baffle is fixedly connected to the surface of the main ruler. The baffle is inclined and can guide and limit the cutting tool when the wax block is trimmed and cut, preventing the tool from deviating and ensuring the accuracy of the cutting trajectory.

[0016] Optionally, a hook is fixedly connected to one side of the main ruler. The hook is arc-shaped, which makes it easy to hang the ruler on the bracket next to the workbench when it is not in use, so as to facilitate storage and retrieval.

[0017] Optionally, the inner bottom wall of the slide groove has two symmetrical auxiliary grooves. The two sliders are adapted to the auxiliary grooves and slidably connected to the inner side wall of the auxiliary grooves. On the one hand, they can accurately guide the sliding direction of the measuring tape to avoid deviation or jamming when the measuring tape slides along the main tape slide groove. On the other hand, they can limit the vertical displacement of the measuring tape to prevent the measuring tape from detaching from the main tape during the sliding process.

[0018] (III) Beneficial Effects

[0019] This utility model provides a guide ruler for trimming and cutting paraffin blocks for pathological diagnosis, which has the following beneficial effects:

[0020] 1. This pathological diagnostic paraffin block trimming and cutting guide ruler, through the sliding cooperation between the dividing ruler and the main ruler, allows for flexible adjustment of the overall length of the guide ruler. It can cover the trimming needs of small-sized paraffin blocks as well as adapt to long and large-sized paraffin blocks, eliminating the need for segmented trimming. This avoids splicing errors caused by incomplete coverage in traditional fixed-length tools, ensuring that the edges of the paraffin blocks are flat and parallel, meeting the requirements of the microtome clamping surface, and improving the quality of subsequent sections. Combined with the dual sliding constraints of T-blocks and T-grooves, and sliders and auxiliary grooves, the movement trajectory of the dividing ruler is effectively limited, ensuring that the dividing ruler always remains parallel to the main ruler and avoiding skewed cutting trajectories caused by dividing ruler deviation.

[0021] 2. This pathological diagnostic paraffin block trimming and cutting guide ruler can quickly lock its position through the initial fixation of the suction cup. The rigid reinforcement of the bolts can further resist the lateral and longitudinal external forces during the cutting process, preventing the guide ruler from shifting. The double fixing structure keeps the guide ruler stable throughout the trimming process, ensuring that the cutting trajectory is accurately aligned with the scale line, reducing paraffin block trimming errors caused by tool displacement, and providing high-quality paraffin block morphology for subsequent pathological staining and diagnosis. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the baffle structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the mounting block structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the T-block structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the suction cup structure of this utility model.

[0026] In the diagram: 1. Main scale; 2. Extension assembly; 201. Measuring scale; 202. T-block; 203. Slider; 3. Limiting assembly; 301. Mounting plate; 302. Suction cup; 303. Mounting block; 304. Bolt; 4. Anti-slip pad; 5. Scale line; 6. Baffle; 7. Hook. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1 to 4 This utility model provides a technical solution: a pathological diagnosis paraffin block trimming and cutting guide ruler, including a main ruler 1, with extension components 2 at both ends of the main ruler 1, and a limiting component 3 on one side of the main ruler 1;

[0029] The extension component 2 includes grooves on both sides of the main scale 1. A measuring scale 201 is slidably connected to the inner wall of each groove. The measuring scale 201 is adapted to the groove. When trimming large wax blocks, sliding the measuring scale 201 outwards extends the guiding range to cover the full size of the wax block. A T-slot is provided at the bottom of the main scale 1. T-blocks 202 are fixedly connected to the bottom of each measuring scale 201. The T-blocks 202 are adapted to the T-slots. The T-blocks 202 prevent the measuring scales 201 from detaching from the grooves of the main scale 1 during sliding, ensuring structural connection stability. Furthermore, by engaging with the inner wall of the T-slot... The tight fit of the wall reduces the lateral swaying of the measuring scale 201 during sliding, ensuring that the extension direction of the measuring scale 201 is completely consistent with the length direction of the main scale 1. The bottom of the two measuring scales 201 is fixedly connected to two symmetrically arranged sliders 203. On the one hand, the sliders 203 form a double-point support with the T-block 202, dispersing the force when the measuring scale 201 slides and avoiding jamming caused by uneven force on a single T-block 202. On the other hand, through the constraint of the auxiliary groove, the sliding trajectory of the measuring scale 201 is further limited, preventing slight deviation of the measuring scale 201 due to the machining error of the groove or long-term wear.

[0030] The limiting component 3 includes mounting plates 301 fixedly connected to the four corners of the bottom of the main ruler 1. Each mounting plate 301 has a suction cup 302 installed at its bottom. After the internal air is expelled by pressing the suction cup 302, atmospheric pressure can make the suction cup 302 tightly adhere to the surface of the operating table, realizing the quick temporary fixation of the guide ruler. Two symmetrically arranged mounting blocks 303 are fixedly connected to one side of the main ruler 1. The threaded holes on the surface of the two mounting blocks 303 provide installation channels for bolts 304, forming a multi-point fixation on the side and bottom with the four suction cups 302 at the bottom, further enhancing the guide ruler's resistance to external forces. The surface of each mounting block 303 has a threaded hole, and the inner sidewall of each threaded hole is threaded with a bolt 304. The bolt 304 is adapted to the threaded hole. The bolt 304 achieves rigid fixation of the guide ruler to the operating table through mechanical fastening, which can completely lock the position of the main ruler 1 and prevent any displacement of the guide ruler during the cutting process.

[0031] The bottom of the T-block 202 is fixedly connected to an anti-slip pad 4. The anti-slip pad 4 is made of rubber, which can increase the friction with the work surface and further prevent the T-block 202 from causing the measuring tape 201 to slide in the T-slot.

[0032] The main scale 1 and the two dividing scales 201 are all equipped with scale lines 5. The scale lines 5 are arranged linearly to provide a precise length and size reference for trimming and cutting the pathological wax block. This allows operators to accurately control the cutting position and range according to the actual size of the wax block and trimming needs, ensuring that the trimmed wax block meets the size requirements of subsequent pathological slide preparation and other operations.

[0033] A baffle 6 is fixedly connected to the surface of the main ruler 1. The baffle 6 is set at an angle, which can guide and limit the cutting tool when the wax block is trimmed and cut, prevent the tool from deviating, and ensure the accuracy of the cutting trajectory.

[0034] A hook 7 is fixedly connected to one side of the main ruler 1. The hook 7 is arc-shaped, which makes it easy to hang the guide ruler on the bracket next to the workbench when it is not in use, so as to facilitate storage and retrieval.

[0035] The inner bottom wall of the slide has two symmetrical auxiliary grooves. Two sliders 203 are adapted to the auxiliary grooves and are slidably connected to the inner side wall of the auxiliary grooves. On the one hand, they can accurately guide the sliding direction of the measuring scale 201 and prevent the measuring scale 201 from deviating or getting stuck when sliding along the main scale 1 slide. On the other hand, they can limit the vertical displacement of the measuring scale 201 and prevent the measuring scale 201 from detaching from the main scale 1 during the sliding process.

[0036] In this invention, the working steps of the device are as follows:

[0037] First step: When it is necessary to extend the length of the main scale 1, the operator first holds the end of the measuring scale 201 with both hands and slides it outward or inward along the sliding grooves on both sides of the main scale 1. During the sliding process, the T-shaped block 202 at the bottom of the measuring scale 201 moves synchronously along the T-shaped groove at the bottom of the main scale 1. At the same time, the slider 203 at the bottom of the measuring scale 201 slides along the auxiliary groove on the bottom wall of the sliding groove. The double sliding constraint can ensure that the measuring scale 201 moves smoothly only along the length direction of the main scale 1, without lateral deviation or jamming.

[0038] The second step: Place the device at the target position on the operating table, ensuring that the suction cups 302 installed at the four corners of the bottom of the main ruler 1 are completely attached to the table surface. Press down on the four corners of the main ruler 1 with both hands to expel the air inside the suction cups 302. Use atmospheric pressure to firmly adhere the suction cups 302 to the table surface, achieving initial fixation of the guide ruler and completing the pre-positioning. After the suction cups 302 are initially fixed, pass the bolts 304 through the threaded holes on the surface of the mounting block 303, align them with the mounting holes on the operating table, and tighten them clockwise until the bolts 304 are completely locked. This mechanical tightening further enhances the connection stability between the guide ruler and the operating table, forming a double fixation of the suction cups 302 and the bolts 304.

[0039] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0041] It will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide ruler for trimming and cutting paraffin blocks for pathological diagnosis, including a main ruler (1), characterized in that: Both ends of the main ruler (1) are provided with extension components (2), and one side of the main ruler (1) is provided with a limiting component (3); The extension component (2) includes sliding grooves on both sides of the main scale (1), and a dividing scale (201) is slidably connected to the inner sidewall of each of the two sliding grooves. The dividing scale (201) is adapted to the sliding groove. A T-shaped groove is provided at the bottom of the main scale (1). A T-shaped block (202) is fixedly connected to the bottom of each of the two dividing scales (201). The T-shaped block (202) is adapted to the T-shaped groove. Two symmetrically arranged sliders (203) are fixedly connected to the bottom of each of the two dividing scales (201). The limiting component (3) includes mounting plates (301) fixedly connected to the four corners of the bottom of the main scale (1). Each mounting plate (301) has a suction cup (302) installed on its bottom. Two symmetrically arranged mounting blocks (303) are fixedly connected to one side of the main scale (1). Threaded holes are opened on the surface of each of the two mounting blocks (303). Bolts (304) are threadedly connected to the inner sidewalls of each of the two threaded holes. The bolts (304) are adapted to the threaded holes.

2. The pathological diagnostic paraffin block trimming and cutting guide ruler according to claim 1, characterized in that: The bottom of the T-block (202) is fixedly connected to an anti-slip pad (4), which is made of rubber.

3. The pathological diagnostic paraffin block trimming and cutting guide ruler according to claim 1, characterized in that: The main scale (1) and the two subscales (201) are all provided with scale lines (5), which are arranged linearly.

4. The pathological diagnostic paraffin block trimming and cutting guide ruler according to claim 1, characterized in that: A baffle (6) is fixedly connected to the surface of the main ruler (1), and the baffle (6) is inclined.

5. The pathological diagnostic paraffin block trimming and cutting guide ruler according to claim 1, characterized in that: A hook (7) is fixedly connected to one side of the main ruler (1), and the hook (7) is arranged in an arc shape.

6. The pathological diagnostic paraffin block trimming and cutting guide ruler according to claim 1, characterized in that: The inner bottom wall of the slide has two symmetrical auxiliary grooves, and the two sliders (203) are adapted to the auxiliary grooves and slidably connected to the inner side wall of the auxiliary grooves.

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