Dental forceps with claws and walls imitating feet of chameleons

The tooth extraction forceps, designed with the biomimetic structure of a gecko's foot, utilize van der Waals forces and tangential forces to trigger a normal adhesion mechanism, enhancing the friction between the forceps beak and the tooth. This solves the problem of high slippage rate of traditional tooth extraction forceps in wet and slippery environments, improving the safety and efficiency of tooth extraction operations.

CN224671628UActive Publication Date: 2026-08-25AFFILIATED STOMATOLOGICAL HOSPITAL OF NANCHANG UNIV (JIANGXI PROVINCIAL STOMATOLOGICAL HOSPITAL)
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Patent Information

Application Number
CN202521926470.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-08-25
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

Traditional extraction forceps lack sufficient friction in wet and slippery environments, resulting in a high slippage rate and low mechanical transmission efficiency, which affects the safety and efficiency of the procedure.

Method used

Adopting a biomimetic gecko foot structure design, combined with a bristle base platform and fiber surface strips, it utilizes van der Waals forces and tangential forces to trigger a normal adhesion mechanism, enhancing the friction between the pincers and teeth, and improving operational stability through retractable connecting components and a buffer mechanism.

Benefits of technology

It significantly reduces the slippage rate during tooth extraction, improves operational efficiency, and ensures surgical safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a non-slip tooth extraction forceps with a beak-like, gecko-foot-inspired design. The forceps includes a first and a second lever, rotatably connected by a pin. Both the first and second levers have reinforcing components at their working ends. These reinforcing components include a mounting platform, a bristle base platform, and a fiber surface strip. The mounting platform is fixed to the surface of the first and second levers. One end of the bristle base platform is connected to the mounting platform, and the other end is connected to the fiber surface strip, forming a multi-level biomimetic adhesion structure. This application combines a gecko foot structure with tooth extraction forceps. The multi-level bristle structure achieves high-strength dry adhesion through van der Waals forces, and the mechanical mechanism of "tangential force triggering normal adhesion" perfectly matches the "grip first, then pull" action sequence in tooth extraction, increasing friction at the beak-tooth interface, significantly reducing surgical time, solving the problem of easy slippage of the forceps during tooth extraction, and significantly improving operational efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of tooth extraction forceps technology, specifically a non-slip tooth extraction forceps that mimics the foot of a gecko with a beak-like shape. Background Technology

[0002] Tooth extraction forceps are the core instruments used in dentistry to hold and extract teeth. Their anti-slip performance directly affects the safety and efficiency of the operation. Traditional tooth extraction forceps mainly enhance friction by mechanical texture or roughening treatment on the surface of the forceps beak, but there are still significant defects in clinical operation; (1) Poor adaptability to wet and slippery environment: The liquid film formed by saliva and blood in the oral cavity will greatly reduce the friction between the forceps beak and the tooth interface, resulting in the forceps beak slipping when force is applied, especially when dealing with severely damaged residual roots or impacted teeth, the slippage rate increases. (2) Low mechanical transmission efficiency: The existing anti-slip design relies on vertical biting force, while the curved shape of the tooth surface makes the actual contact area of ​​the forceps beak lower than the theoretical value, requiring doctors to repeatedly adjust the forceps position, which greatly prolongs the operation time; Utility Model Content The purpose of this invention is to provide a non-slip tooth extraction forceps that mimics the foot of a gecko with a beak-like shape, in order to solve the problems mentioned in the background art of traditional tooth extraction forceps, such as poor self-adhesion capacity, low mechanical transmission efficiency, and high slippage rate.

[0003] To achieve the above objectives, this utility model provides the following technical solution: a non-slip extraction forceps with a beak-like gecko foot-like biomimetic design, comprising a first forceps bar and a second forceps bar, which are rotatably connected by a pin. The working ends of both the first and second forceps bars are provided with reinforcing components. The reinforcing components include a mounting platform, a bristle base platform, and a fiber surface strip. The mounting platform is fixed to the surface of the first and second forceps bars. One end of the bristle base platform is connected to the mounting platform, and the other end is connected to the fiber surface strip, forming a multi-level biomimetic adhesion structure.

[0004] Furthermore, a retractable connecting component is provided between the first clamp bar and the second clamp bar.

[0005] Furthermore, the retractable connection assembly includes a slidingly connected length shell and a length rod, with the length shell fixed to the first clamp rod or the second clamp rod, and the length rod fixed to the second clamp rod or the first clamp rod.

[0006] Furthermore, a buffer mechanism is provided between the first clamp bar and the second clamp bar, with one end of the buffer mechanism connected to the first clamp bar and the other end connected to the second clamp bar.

[0007] Furthermore, the buffer mechanism is a helical spring, which is wound around the periphery of the length shell and the length rod.

[0008] Furthermore, the bristle base platform is a micro-column array structure, and the inclination angle between the bristle base platform and the mounting platform is 60°-75°. The fiber surface strip is an umbrella-shaped fiber bundle with an expanded diameter at the top. Furthermore, the bristle base platform is made of pure titanium, and the fiber surface strip is made of polyurethane.

[0009] Furthermore, the bristle base station has a length of 80 μm and a diameter of 6 μm.

[0010] Furthermore, the diameter of the fiber surface strip is 5 μm, and its top is umbrella-shaped with a top diameter of 6-8 μm.

[0011] Furthermore, the ends of the first and second clamps are fitted with anti-slip sleeves.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up reinforcing components and forceps, this application combines the gecko foot structure with tooth extraction forceps. The biomimetic gecko foot multi-level bristle structure achieves high-strength dry adhesion (the adhesion force of a single bristle reaches 10μN) through van der Waals forces and the mechanical mechanism of "tangential force triggering normal adhesion" to perfectly adapt to the action sequence of "first gripping and then pulling" in tooth extraction operation, so as to increase the friction of the forceps beak-tooth interface, greatly reduce the operation time, solve the problem of tooth extraction forceps easily slipping during tooth extraction, and significantly improve the operation efficiency. Attached Figure Description

[0013] Figure 1 This is a side view of the present invention; Figure 2 This is a connection diagram of the first clamp rod and the second clamp rod of this utility model; Figure 3 This is a side view of the retractable connection component of this utility model; Figure 4 This is a perspective view of the retractable connecting component of this utility model; Figure 5 This is an enlarged view of the reinforcement component of this utility model.

[0014] In the diagram: 1. First clamping bar; 2. Pin; 3. Second clamping bar; 4. Telescopic connecting assembly; 41. Length shell; 42. Length rod; 43. Buffer mechanism; 5. Reinforcing assembly; 51. Mounting platform; 52. Bristle base platform; 53. Fiber surface strip; 6. Anti-slip sleeve. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figure 1-5This utility model provides a non-slip tooth extraction forceps that mimics the foot of a gecko, including a first clamp 1 and a second clamp 3, which are rotatably connected by a pin 2. Reinforcing components 5 are provided on the opposing surfaces of the first clamp 1 and the second clamp 3.

[0017] Specifically, the reinforcing component 5 includes a mounting platform 51, a bristle base platform 52, and a fiber surface strip 53. The mounting platform 51 is fixed to the surface of the first clamp 1 and the second clamp 3. One end of the bristle base platform 52 is connected to the side of the mounting platform 51 away from the first clamp 1 and the second clamp 3, and the other end is connected to the fiber surface strip 53. This application combines the gecko foot structure with tooth extraction forceps. The biomimetic gecko foot multi-level bristle structure achieves high-strength dry adhesion (single bristle adhesion force reaches 10μN) through van der Waals forces and the mechanical mechanism of "tangential force triggering normal adhesion" to perfectly adapt to the "first grip, then pull" action sequence in tooth extraction, thereby increasing the friction at the forceps beak-tooth interface and greatly reducing the operation time.

[0018] Furthermore, the tilt angle between the bristle base station 52 and the mounting platform 51 is 60°-75°.

[0019] Furthermore, the bristle base platform 52 is a micro-pillar array structure, and the fiber surface strip 53 is an umbrella-shaped fiber bundle with an expanded diameter at the top.

[0020] Furthermore, the bristle base platform 52 is made of pure titanium, and the fiber surface strip 53 is made of polyurethane. In other embodiments, the fiber surface strip 53 may be made of other flexible materials.

[0021] Specifically, in this embodiment, the bristle base platform 52 has a length of 80μm and a diameter of 6μm; the bottom diameter of the fiber surface strip 53 is 5μm, and the top is umbrella-shaped with a diameter of 6-8μm.

[0022] Furthermore, for safer surgery, a retractable connecting component 4 is provided between the first clamp 1 and the second clamp 3. The retractable connecting component 4 can provide cushioning force during surgical operations.

[0023] The retractable connecting component 4 includes a slidingly connected length shell 41 and a length rod 42. The length shell 41 is fixed to the first clamp rod 1 or the second clamp rod 3, and one end of the length rod 42 is fixed to the second clamp rod 3 or the first clamp rod 1.

[0024] Furthermore, a buffer mechanism 43 is provided between the first clamp 1 and the second clamp 3. The buffer mechanism 43 can further increase the buffering force to ensure surgical safety.

[0025] Specifically, the buffer mechanism 43 is a helical spring, and the helical spring is wound around the periphery of the length shell 41 and the length rod 42.

[0026] Furthermore, the ends of the first clamp 1 and the second clamp 3 are fitted with anti-slip sleeves 6.

[0027] In this embodiment of the application, when medical staff hold the anti-slip sleeve 6 to pick up the extraction forceps, during the operation, when the first forceps bar 1 rotates relative to the pin 2 and the second forceps bar 3 rotates, the installation of the reinforcing component 5 increases the connection area between the two.

[0028] This application combines the gecko foot structure with tooth extraction forceps. The biomimetic gecko foot multi-level bristle structure achieves high-strength dry adhesion (the adhesion force of a single bristle reaches 10μN) through van der Waals forces and the mechanical mechanism of "tangential force triggering normal adhesion" to perfectly match the action sequence of "first gripping and then pulling" in tooth extraction operation, so as to increase the friction of the forceps beak-tooth interface and greatly reduce the operation time.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A type of non-slip tooth extraction forceps inspired by the foot of a gecko, comprising a first forceps bar (1) and a second forceps bar (3), which are rotatably connected by a pin (2), characterized in that: The working ends of the first clamp (1) and the second clamp (3) are provided with reinforcement components (5); the reinforcement components (5) include a mounting platform (51), a bristle base platform (52) and a fiber surface strip (53); the mounting platform (51) is fixed to the surface of the first clamp (1) and the second clamp (3), and one end of the bristle base platform (52) is connected to the mounting platform (51) and the other end is connected to the fiber surface strip (53), forming a multi-level biomimetic adhesion structure.

2. The anti-slip extraction forceps according to claim 1, characterized in that: A retractable connecting component (4) is provided between the first clamp (1) and the second clamp (3).

3. The anti-slip extraction forceps according to claim 2, characterized in that: The retractable connection assembly (4) includes a slidingly connected length shell (41) and a length rod (42), the length shell (41) being fixed to a first clamp rod (1) or a second clamp rod (3), and the length rod (42) being fixed to a second clamp rod (3) or a first clamp rod (1).

4. The anti-slip extraction forceps according to claim 3, characterized in that: A buffer mechanism (43) is provided between the first clamp (1) and the second clamp (3). One end of the buffer mechanism (43) is connected to the first clamp (1), and the other end is connected to the second clamp (3).

5. The anti-slip extraction forceps according to claim 4, characterized in that: The buffer mechanism (43) is a helical spring, which is wound around the periphery of the length shell (41) and the length rod (42).

6. The anti-slip extraction forceps according to claim 1, characterized in that: The bristle base platform (52) is a micro-column array structure, and the inclination angle between the bristle base platform (52) and the mounting platform (51) is 60°-75°. The fiber surface strip (53) is an umbrella-shaped fiber bundle with an expanded diameter at the top.

7. The anti-slip extraction forceps according to claim 6, characterized in that: The bristle base platform (52) is made of pure titanium, and the fiber surface strip (53) is made of polyurethane.

8. The anti-slip extraction forceps according to claim 6, characterized in that: The bristle base platform (52) has a length of 80 μm and a diameter of 6 μm.

9. The anti-slip extraction forceps according to claim 6, characterized in that: The diameter of the rod portion of the fiber surface strip (53) is 5μm, and its top is umbrella-shaped with a top diameter of 6-8μm.

10. The anti-slip extraction forceps according to claim 1, characterized in that: The ends of the first clamp (1) and the second clamp (3) are fitted with anti-slip sleeves (6).