An easy-to-use cervical biopsy forceps
By incorporating an anti-slip sleeve and connecting mechanism on the outer wall of the cervical live sampling forceps handle, the problem of handle slippage is solved, resulting in greater operational stability and convenience, and simplifying the sleeve replacement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU CHENTAO MEDICAL EQUIP CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-31
AI Technical Summary
The existing cervical biopsy forceps handle has insufficient anti-slip design, which makes it easy to slip during operation, affecting sampling accuracy and patient comfort.
A cover is provided on the outer wall of the handle. The outer wall of the cover has an anti-slip layer and is connected to the handle through a connecting mechanism. It includes a rubber block, a damping groove, a rubber ring, a cylinder, a slide, a slider, and a support block. It is made of medical-grade rubber material and has anti-slip texture to improve the coefficient of friction and facilitate the replacement of the cover.
It significantly improves the friction coefficient between the handle and the hand, preventing slippage, enhancing operational stability and convenience, and making the shell replacement process simple and efficient.
Smart Images

Figure CN224572770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cervical biopsy forceps technology, specifically a cervical biopsy forceps that is easy to operate. Background Technology
[0002] As is well known, cervical biopsy forceps are specialized instruments used in gynecological clinics to obtain cervical tissue specimens, primarily for the pathological diagnosis of cervical lesions.
[0003] Existing cervical biopsy forceps handles generally have insufficient anti-slip design. The coefficient of friction between the hands and the handle is low when medical staff operate the forceps, especially when the surgical gloves are wet or when force is applied, which can easily lead to slippage. This results in unstable forceps control, which not only affects the sampling accuracy but may also increase the operation time and patient discomfort, significantly reducing the convenience of clinical use. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides an easy-to-operate cervical live sampling forceps.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a cervical live sampling forceps that is easy to operate, comprising a body, a handle, a housing, and a connecting mechanism. The handle is disposed on the body, and the housing is disposed on the outer wall of the handle. The housing matches the handle. The outer wall of the housing is provided with an anti-slip layer, which is fixedly connected to the outer wall of the housing. Two connecting mechanisms are provided, each including a rubber block, a damping groove, a rubber ring, a cylinder, a sliding groove, a slider, and a support block. One end of the rubber block is connected to the outer wall of the housing, and the other end of the rubber block is connected to the rubber ring. One end of the cylinder is connected to the body, and the rubber ring is fitted onto the cylinder. The damping groove is formed on the rubber block, and the sliding groove is formed on the outer wall of the housing. One end of the slider extends into the sliding groove, and the other end of the slider is connected to the support block, which partially extends into the damping groove.
[0008] To facilitate pulling the support block, the present invention is improved by providing a handle at the bottom of the support block, and the handle is fixedly connected to the bottom of the support block.
[0009] To improve stability, this utility model is improved by symmetrically arranging the two connecting mechanisms.
[0010] To improve the anti-slip effect, the present invention is improved by using a rubber material for the anti-slip layer and providing several anti-slip patterns on the anti-slip layer.
[0011] To facilitate the insertion of the support block into the damping groove, the present invention is improved in that the support block is matched with the damping groove.
[0012] To improve the sliding effect, the present invention is improved in that the slider matches the groove.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides an easy-to-operate cervical biopsy forceps, which has the following beneficial effects:
[0015] This easy-to-use cervical biopsy forceps features a casing that fits snugly onto the outside of the handle. The outer wall of the casing is made of medical-grade rubber with anti-slip texture, increasing the friction coefficient between the hand and handle by 40%, effectively preventing slippage and significantly improving grip stability. When the casing needs replacement due to aging, disassembly can be completed by operating the connecting mechanism: simply pull the handle at the bottom of the support block to separate it from the damping groove, simultaneously causing the slider to slide down the groove. Then, pry the rubber ring to detach it from the cylinder, allowing the casing to be removed from the handle. A new casing can then be installed, and the support block can be engaged in the damping groove. The entire replacement process requires no tools, making it convenient and efficient. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;
[0018] Figure 3 This is a schematic diagram of the axial structure of this utility model;
[0019] Figure 4 This utility model Figure 1 The front view;
[0020] In the diagram: 1. Body; 2. Handle; 3. Shell; 4. Anti-slip layer; 5. Connecting mechanism; 6. Rubber block; 7. Damping groove; 8. Rubber ring; 9. Cylinder; 10. Slide groove; 11. Slider; 12. Support block; 13. Grip. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 A user-friendly cervical biopsy forceps includes a body 1, a handle 2, a housing 3, and connecting mechanisms 5. The handle 2 is mounted on the body 1, and the housing 3 is located on the outer wall of the handle 2. The housing 3 matches the handle 2. An anti-slip layer 4 is provided on the outer wall of the housing 3, and the anti-slip layer 4 is fixedly connected to the outer wall of the housing 3. Two connecting mechanisms 5 are provided, each including a rubber block 6, a damping groove 7, a rubber ring 8, a cylinder 9, a sliding groove 10, and a slider 11. The support block 12 has one end of the rubber block 6 connected to the outer wall of the housing 3 and the other end connected to the rubber ring 8. One end of the cylinder 9 is connected to the body 1, and the rubber ring 8 is fitted onto the cylinder 9. The damping groove 7 is formed on the rubber block 6, and the sliding groove 10 is formed on the outer wall of the housing 3. One end of the slider 11 extends into the sliding groove 10, and the other end of the slider 11 is connected to the support block 12. The support block 12 partially extends into the damping groove 7.
[0023] In this embodiment, the main body 1 adopts a commercially available conventional cervical live sampling forceps structure. Its specific components (such as the forceps head, forceps bar, opening and closing control mechanism, etc.) will not be described in detail here. The sleeve 3 is tightly fitted on the outside of the handle 2 of the main body 1. The anti-slip layer 4 on the outer wall of the sleeve 3 can effectively improve the anti-slip effect. According to the test, in the dry state, the coefficient of friction with the latex glove increased from 0.5 to 0.7 (an increase of 40%); in the wet state, it increased from 0.3 to 0.45 (an increase of 50%), thereby avoiding slippage between the medical staff's hands and the handle 2, and significantly improving the convenience of operation.
[0024] When the housing 3 needs to be replaced due to aging after long-term use, medical personnel need to hold the support block 12 and apply external force to separate the support block 12 from the damping groove 7 on the rubber block 6. Since the inner wall of the damping groove 7 uses the elasticity of the rubber material to form a damping effect, the support block 12 will remain in a locked state when no external force is applied. Therefore, it is necessary to pull the handle 13 to drive the slider 11 to slide down along the slide groove 10 to separate the support block 12 from the damping groove 7. The rubber block 6 itself has good flexibility. After the support block 12 is separated, the rubber block 6 can be subjected to tensile deformation. The rubber ring 8 and the cylinder 9 adopt an interference fit (interference amount 0.1-0.2mm). When prying, the elastic expansion of the rubber is used to separate it from the cylinder. At this time, pulling the housing 3 can remove it from the handle 2 to complete the replacement of the new part. The new part can be purchased from the manufacturer. The installation steps are common knowledge in the industry and will not be described in detail here.
[0025] The outer shell 3 is made of medical-grade ABS material that can withstand high-temperature sterilization at 134℃ and is compatible with various sterilization methods such as high temperature and high pressure and glutaraldehyde immersion.
[0026] The slide 10 in the text adopts a T-shaped slide, and the end of the slider 11 that extends into the slide 10 matches the slide 10, also adopting a T-shape.
[0027] It is worth noting that both the rubber block 6 and the rubber ring 8 are made of highly elastic medical rubber material, which requires the application of a specific external force to deform; at the same time, the silicone layer on the inner wall of the shell 3 is tightly fitted with the handle 2 (the coefficient of friction reaches 0.8-1.2), ensuring that the shell 3 will not fall off due to vibration or slight external force during normal use, thus ensuring the stability and reliability of the device from the structural design.
[0028] To facilitate pulling the support block 12, a handle 13 is fixedly connected to the bottom of the support block 12 in this embodiment. The handle 13 is made of medical-grade ABS material with anti-slip ripples on the surface and a diameter of 28mm, which conforms to ergonomic grip habits. By applying force through the handle 13, the pulling direction of the support block 12 can be precisely controlled. Compared with pulling the support block directly, the operating lever arm is increased by 35%, which can make it easier to separate the support block 12 from the damping groove 7.
[0029] To improve the stability of the device, this utility model adopts a symmetrical structural design, with connecting mechanisms 5 set on both sides of the handle. The two sets of connecting mechanisms are mirror-distributed with the central axis of the handle as the axis of symmetry, which can make the shell evenly stressed after installation, effectively balance the lateral force generated during operation, and avoid shell displacement or shaking caused by unilateral force, thereby improving the overall structural stability and operational reliability.
[0030] To enhance the anti-slip effect, the anti-slip layer 4 in this invention is made of medical-grade rubber with a Shore hardness of 60±5A. Its surface is evenly distributed with several raised anti-slip textures with a height of 0.5mm and a spacing of 2mm. This design can increase the coefficient of friction between the hand and the handle by 40%, and can maintain a stable grip even when the surgical gloves are wet, effectively preventing slippage during operation.
[0031] To facilitate the precise insertion of the support block 12 into the damping groove 7, this utility model designs a precision matching structure between the support block 12 and the damping groove 7. The cross-sectional dimensions of the support block 12 and the tolerance of the inner wall of the damping groove 7 are controlled within ±0.1mm, forming a clearance fit. This ensures that the support block 12 can be smoothly inserted into the damping groove 7 while maintaining appropriate damping force, preventing accidental detachment, and improving the reliability of the connection mechanism.
[0032] To improve the stability of the device, the slider 11 and the slide groove 10 in this utility model adopt a precision fit design. The cross-sectional dimensions of the slider 11 and the tolerance of the inner wall of the slide groove 10 are controlled within the range of H7 / g6, forming a clearance fit structure. This ensures that the slider 11 slides smoothly and without shaking in the slide groove 10, which can effectively avoid shaking caused by excessive clearance during the operation of the housing 3, thereby improving the stability of the overall structure.
[0033] Although embodiments of the present invention have been shown and described, 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 user-friendly cervical biopsy forceps, comprising a body (1), a handle (2), a housing (3), and a connecting mechanism (5), characterized in that: The handle (2) is mounted on the body (1), and the housing (3) is on the outer wall of the handle (2). The housing (3) matches the handle (2). The outer wall of the housing (3) is provided with an anti-slip layer (4), which is fixedly connected to the outer wall of the housing (3). Two connecting mechanisms (5) are provided. The connecting mechanism (5) includes a rubber block (6), a damping groove (7), a rubber ring (8), a cylinder (9), a slide groove (10), a slider (11), and a support block (12). One end of the rubber block (6) is connected to... The outer wall of the casing (3) is connected, the other end of the rubber block (6) is connected to the rubber ring (8), one end of the cylinder (9) is connected to the body (1), the rubber ring (8) is sleeved on the cylinder (9), the damping groove (7) is opened on the rubber block (6), the sliding groove (10) is opened on the outer wall of the casing (3), one end of the slider (11) extends into the sliding groove (10), the other end of the slider (11) is connected to the support block (12), and part of the support block (12) extends into the damping groove (7).
2. A cervical biopsy forceps for ease of operation according to claim 1, wherein: The support block (12) has a handle (13) at its bottom, and the handle (13) is fixedly connected to the bottom of the support block (12).
3. A cervical biopsy forceps for ease of operation according to claim 2, wherein: The two connecting mechanisms (5) are arranged symmetrically.
4. A cervical biopsy forceps for ease of operation according to claim 3, wherein: The anti-slip layer (4) is made of rubber and has several anti-slip patterns.
5. A cervical biopsy forceps for ease of operation according to claim 4, wherein: The support block (12) is matched with the damping groove (7).
6. A cervical biopsy forceps for ease of operation according to claim 5, wherein: The slider (11) is matched with the groove (10).