Clinical examination smear device

By introducing a buffer clamping component and a scraper structure into the clinical laboratory smear device, the problems of vibration and slide damage during use were solved, achieving slide protection and uniform coating.

CN224109167UActive Publication Date: 2026-04-10THE SECOND AFFILIATED HOSPITAL OF SHAOYANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing clinical laboratory smear devices are prone to vibration during use, leading to smear position deviations, and lack a buffer protection structure for the slides, making the slides susceptible to pressure damage during smearing.

Method used

A clinical smear device including a buffer clamping assembly was designed. The buffer clamping assembly consists of a clamping seat, a buffer spring, a clamping plate, and an anti-slip pad. The glass slide is protected by the compression force of the buffer spring, and the coating is evenly applied by the movement of the scraper.

Benefits of technology

It effectively prevents the glass slide from being damaged during the coating process, ensures the stability of the coating position and the uniformity of the coating, and avoids the risk of glass slide damage due to pressure.

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Abstract

The utility model discloses a clinical examination smear device, which relates to the technical field of clinical examination smear, and comprises a mounting table, a buffer clamping component is mounted at the top of the mounting table, the buffer clamping component is used for protecting a smeared slide, the buffer clamping component comprises a clamping seat, a mounting groove, a buffer spring, a clamping plate and a non-slip mat, and the clamping seat is fixedly connected with the mounting groove. The clamping seat is mounted at the top of the mounting table, the mounting grooves are symmetrically formed in the inner wall of the bottom of the clamping seat, the buffer springs are mounted in the mounting grooves, the clamping plate is mounted at the top ends of the buffer springs, and the non-slip mat is mounted at the top of the clamping plate. When the coating on the slide is scraped to be uniform, and after the slide is pressed by the scraping plate, the slide moves downwards, so that the buffer spring is compressed downwards, a space is provided for buffering of the slide, and the slide is prevented from being damaged due to the pressure.
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Description

TECHNICAL FIELD

[0001] The utility model relates to clinical test smear technology field, concretely is a clinical test smear device. BACKGROUND

[0002] Clinical test smear is the technology commonly used in medical diagnosis, is mainly used for observing the microorganism or cell morphology in sample through microscope, auxiliary disease diagnosis, and smear examination is through the even smear of patient sample (such as sputum, blood, cerebrospinal fluid etc.), when carrying out smearing, need through the clinical test smear device auxiliary smearing.

[0003] Patent document CN221550198U discloses a kind of clinical medical examination smear device, which discloses "including base, the base upper end one side is fixedly connected with mounting bracket, the mounting bracket upper end one side is fixedly connected with clamping seat, the clamping seat inside is slidably connected with drip tube, the drip tube inside is slidably connected with piston, the piston upper end is fixedly connected with connecting column.This kind of clinical medical examination smear device, during use, drip tube is placed in clamping seat inside, then fastening bolt is tightened to fix drip tube, then rotates first screw rod, first screw rod rotation will drive placement table to move, until the upper end of one of the two placement grooves in placement table moves to the lower end of drip tube, and then carries out smear work, during use, can prevent as much as possible from appearing jitter, thereby leading to the deviation of smear position".

[0004] However, the above-mentioned clinical medical examination smear device mainly considers the existing smear device, which is prone to jitter during use, resulting in deviation of the smear position. However, the smear device lacks a buffer protection structure for the slide, which can be damaged by pressure during smearing.

[0005] Therefore, it is necessary to study a clinical test smear device to protect the slide from being damaged by pressure. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a clinical test smear device to solve the technical problem of the lack of buffer protection structure for the slide during smearing, which can be damaged by pressure.

[0007] To achieve the above object, the utility model provides the following technical scheme: A clinical test smear device, it includes: installation platform, the top of installation platform is installed buffer clamping component, buffer clamping component is used for protecting the smear glass, buffer clamping component includes clamping seat, installation slot, buffer spring, clamping plate and non -skid pad, clamping seat is installed at the top of installation platform, the bottom inner wall of clamping seat is opened symmetrically installation slot, buffer spring is installed in the inside of installation slot, clamping plate is installed at the top of buffer spring, non -skid pad is installed at the top of clamping plate.

[0008] Preferably, the bottom of the installation platform is symmetrically provided with supporting legs.

[0009] Preferferably, the top of the installation platform is provided with a mounting rack, the top of the mounting rack is provided with a through slot, and the inner wall of the through slot is symmetrically provided with a limiting slot.

[0010] Preferably, a sliding block is slidably installed in the through slot, and the outer side of the sliding block is symmetrically provided with a limiting block in sliding connection with the limiting slot.

[0011] Preferably, a connecting rod is installed through the top of the sliding block, the top end of the connecting rod is provided with a mounting plate, and the top of the mounting plate is provided with a moving handle.

[0012] Preferably, the bottom end of the connecting rod is provided with a connecting plate, the bottom of the connecting plate is provided with a scraper, the top of the connecting plate is symmetrically provided with a limiting spring, and the top end of the limiting spring is connected with the inner wall of the top of the mounting rack.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. When the glass is placed between the non-slip pad and the inner wall of the clamping seat, the clamping plate needs to be moved downward to compress the buffer spring, so that the buffer spring generates an upward clamping force, the clamping plate is pushed upward, and the non-slip pad clamps the glass. When the coating on the glass is scraped to make it uniform, the glass will move downward after being pressed by the scraper, so that the buffer spring is compressed downward to provide space for the buffer of the glass, thereby avoiding damage to the glass due to pressure.

[0015] 2. The utility model has a simple structure, and when performing smearing, the worker only needs to press downward through the moving handle, so that the connecting rod drives the scraper installed at the bottom end through the connecting plate to move downward and contact the top of the glass. Then the worker pulls the scraper through the moving handle, so that the scraper scrapes the coating on the top of the glass uniformly. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 Structure diagram of the buffer clamping assembly of the utility model;

[0018] Figure 3 Structure diagram of the buffer clamping assembly of the utility model; Figure 1 Structure diagram of the buffer clamping assembly of the utility model;

[0019] Figure 4 Structure diagram of the buffer clamping assembly of the utility model.

[0020] In the figure: 1, mounting table; 2, support leg; 3, clamping seat; 4, mounting groove; 5, buffer spring; 6, clamping plate; 7, non-slip pad; 8, mounting frame; 9, through slot; 10, limiting groove; 11, sliding block; 12, limiting block; 13, connecting rod; 14, mounting plate; 15, moving handle; 16, connecting plate; 17, scraper; 18, limiting spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Please refer to Figure 1 and Figure 2 A clinical test smear device;

[0025] It comprises: a mounting table 1 and a buffer clamping assembly, the top of the mounting table 1 is provided with the buffer clamping assembly, the buffer clamping assembly is used for protecting the painted slide, the buffer clamping assembly comprises a clamping seat 3, a mounting groove 4, a buffer spring 5, a clamping plate 6 and an anti-skid pad 7, the clamping seat 3 is installed on the top of the mounting table 1, the mounting groove 4 is symmetrically arranged on the inner wall of the bottom of the clamping seat 3, the buffer spring 5 is installed in the mounting groove 4, the clamping plate 6 is installed at the top end of the buffer spring 5, and the anti-skid pad 7 (silica gel material, thickness 2mm) is installed on the top of the clamping plate 6 (double-sided adhesive tape (3M VHB 4920) is used for bonding, an edge is coated with an aluminum alloy turn-up of 1mm in thickness to prevent falling off), and the bottom of the mounting table 1 is symmetrically provided with supporting legs 2;

[0026] The buffer spring 5 is made of stainless steel (SUS304-WPB), has a wire diameter of 0.8mm, an outer diameter of 8mm, a free height of 20mm and a stiffness coefficient of 5N / mm. When installed, the buffer spring 5 is pre-compressed to 15mm (initial compression amount 5mm), can provide an initial clamping force of 7.5N, and is suitable for standard slides with a thickness of 1.0-1.2mm. The buffer spring 5 can reduce the peak value of the pressure on the slide.

[0027] The mounting table 1 provides a position for the installation of the buffer clamping assembly and a mounting frame 8, the mounting table 1 is placed at a position required to be used through the supporting legs 2, the buffer clamping assembly is used for clamping the slide, and the two ends of the slide are clamped between the anti-skid pad 7 and the inner wall of the clamping seat 3. Since the bottom of the anti-skid pad 7 is connected with the buffer spring 5 through the clamping plate 6, when the slide is placed between the anti-skid pad 7 and the inner wall of the clamping seat 3, the clamping plate 6 needs to be moved downward to compress the buffer spring 5, so that the buffer spring 5 generates an upward clamping force, the clamping plate 6 is pushed upward to make the anti-skid pad 7 clamp the slide, when the paint on the slide is scraped to be uniform, after the slide is pressed by the scraper 17, the slide moves downward, the buffer spring 5 is compressed downward, a space is provided for the buffer of the slide, and the slide is prevented from being damaged by the pressure.

[0028] Please refer to Figure 1 , Figure 3 and Figure 4 , a clinical test smear device;

[0029] The top of the mounting table 1 is provided with the mounting frame 8, a through groove 9 is formed in the top of the mounting frame 8, limit grooves 10 are symmetrically formed in the inner wall of the through groove 9, a sliding block 11 is slidably installed in the through groove 9, limit blocks 12 are symmetrically installed on the outer side of the sliding block 11 and are in sliding connection with the limit grooves 10, a connecting rod 13 is installed through the top of the sliding block 11, a mounting plate 14 is installed at the top end of the connecting rod 13, a moving handle 15 is installed at the top of the mounting plate 14, a connecting plate 16 is installed at the bottom end of the connecting rod 13, a scraping plate 17 is installed at the bottom of the connecting plate 16, limit springs 18 are symmetrically installed at the top of the connecting plate 16 and are connected with the inner wall of the top of the mounting frame 8;

[0030] The mounting frame 8 provides a position for the formation of the through groove 9, the through groove 9 provides a space for the installation of the sliding block 11, the sliding block 11 is stably moved in the through groove 9 through the sliding connection of the limit blocks 12 and the limit grooves 10, the connecting rod 13 is slid up and down through the through sliding block 11, so that the scraping plate 17 installed through the connecting plate 16 at the bottom end can be moved up and down through the connecting rod 13, and the scraping plate 17 is limited above the glass slide due to the connection of the top of the connecting plate 16 with the limit springs 18, when it is necessary to evenly spread the paint on the glass slide through the scraping plate 17, the worker moves the scraping plate 17 downward through the moving handle 15, and then pulls the moving handle 15 to spread the paint on the glass slide evenly through the scraping plate 17.

[0031] The scraping plate 17 is made of polytetrafluoroethylene (PTFE) material, which is 80 mm long, 10 mm wide and 2 mm thick, the edge is rounded (R0.5 mm), the surface roughness Ra is ≤0.4 μm, and no residue is ensured during scraping.

[0032] The limit spring 18 has a stiffness coefficient of 3 N / mm, an initial length of 30 mm, and provides a vertical pressure of 6-12 N when pressed down, which is evenly distributed to the full length of the scraping plate 17. The limit spring 18 keeps the scraping plate 17 2 mm away from the glass slide in a free state (pre-stretching state). When pressed down, the spring is compressed to 24 mm (maximum compression amount 6 mm), providing a rebound force of 18 N, which cooperates with the buffer spring 5 to disperse the pressure. During the scraping process, the resultant force of the limit spring 18 and the buffer spring 5 is always ≤30 N (glass safety threshold), and the formula is:

[0033] F 总 =k1Δx1+k2Δx2, which ensures that the pressure is controllable, wherein: F 总 is the total pressure on the glass slide; k1 and k2 are the stiffness coefficients of the buffer spring 5 and the limit spring 18, respectively; Δx1 and Δx2 are the real-time compression amounts of the two springs, respectively, and the formula ensures that the total pressure is always lower than the glass safety threshold (30 N); dynamic balance example: when Δx1=2 mm and Δx2=4 mm, F 总= 5*2 + 3*4 = 22 N (in the safe range).

[0034] Working principle, first through the support leg 2 is placed in the installation platform 1 in the need to use the position, need to be painted in the buffer clamping assembly clamping slide, then the staff will be painted on the slide above, the staff by moving the handle 15 down pressure, make connecting rod 13 driven by the bottom through the connecting plate 16 installed scraper 17 down move and slide top contact, then the staff by moving the handle 15 pull scraper 17, so that the scraper 17 will slide top paint scraping uniform.

[0035] Further explanation: when the scraper 17 down slide, buffer spring 5 can be further compressed to 10mm (maximum compression 10mm), provide 15N buffer force. Slide stress displacement ≤2mm downward, avoid breakage.

[0036] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A clinical test smear device, characterized by, The application relates to a glass sheet coating protection device, which comprises a mounting table (1), a buffer clamping assembly is mounted on the top of the mounting table (1) and used for protecting a coated glass sheet, the buffer clamping assembly comprises a clamping seat (3), a mounting groove (4), a buffer spring (5), a clamping plate (6) and an antiskid pad (7), the clamping seat (3) is mounted on the top of the mounting table (1), the mounting groove (4) is symmetrically arranged on the inner wall of the bottom of the clamping seat (3), the buffer spring (5) is mounted in the mounting groove (4), the clamping plate (6) is mounted on the top end of the buffer spring (5), and the antiskid pad (7) is mounted on the top of the clamping plate (6).

2. A clinical test smear device according to claim 1, wherein: Supporting legs (2) are symmetrically mounted on the bottom of the mounting table (1).

3. A clinical test smear device according to claim 1, wherein: A mounting frame (8) is mounted on the top of the mounting table (1), a through groove (9) is arranged on the top of the mounting frame (8), and limit grooves (10) are symmetrically arranged on the inner wall of the through groove (9).

4. A clinical test smear device according to claim 3, wherein: A sliding block (11) is slidably mounted in the through groove (9), and limit blocks (12) are symmetrically mounted on the outer side of the sliding block (11) and slidably connected with the limit grooves (10).

5. A clinical test smear device according to claim 4, wherein: A connecting rod (13) is mounted on the top of the sliding block (11), a mounting plate (14) is mounted on the top end of the connecting rod (13), and a moving handle (15) is mounted on the top of the mounting plate (14).

6. A clinical test smear device according to claim 5, wherein: A connecting plate (16) is mounted on the bottom end of the connecting rod (13), a scraper (17) is mounted on the bottom of the connecting plate (16), limit springs (18) are symmetrically mounted on the top of the connecting plate (16), and the top end of the limit spring (18) is connected with the inner wall of the top of the mounting frame (8).

Citation Information

Patent Citations

  • Smear device for clinical medical examination

    CN221550198U