Improved rongeur

By improving the structural design of the bone biting forceps, the problem of narrow and slippery head of the existing bone biting forceps has been solved, achieving the effects of accommodating large bone pieces, anti-slip and labor-saving, and adapting to a variety of usage scenarios.

CN224320733UActive Publication Date: 2026-06-05CHANGSHA TIANTIAN DENTAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA TIANTIAN DENTAL EQUIP CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing bone forceps have narrow heads, which are not suitable for large-scale orthopedic trimming. They are prone to slipping and require a lot of effort, and cannot meet the precision requirements of modern oral medicine.

Method used

Design an improved bone-biting forceps, which connects two forceps bodies by hinge screws, has grooves and teeth at the jaws, and the head and handle are at different angles. It is equipped with elastic elements to enhance stability and anti-slip properties.

Benefits of technology

The widened pliers head groove accommodates large pieces of bone, preventing slippage, reducing the contact area and increasing pressure, adapting to different application areas, and making it easier and more precise to use.

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Abstract

The utility model relates to medical forceps technical field, concretely relates to an improved bone rong, including the bone rong formed by the two forceps body connected through hinge screw, still include: mounting screw, recess, the recess sets up in the mouth position of bone rong, and the mouth position occlusal surface is set into dentate; Two The forceps body is fixedly connected with elastic member through mounting screw. The jaw recess can be increased by widening the jaw of bone rong, so it can accommodate larger, more bone block, in addition, the blade on both sides of the jaw does not easily form interference when trimming large bone block; The jaw is toothed, the tooth tip contacts the bone surface when using, reduces the contact area, under the condition of equivalent force, the contact area reduces, and the pressure increases, so the bone rong can be more smoothly bitten into the bone surface and cut off the bone block, in other words, this design can save the effort, and prevents skidding when using.
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Description

Technical Field

[0001] This utility model relates to the field of medical forceps technology, specifically to an improved bone-biting forceps. Background Technology

[0002] With the continuous development and progress of oral medicine, the improvement of materials science and manufacturing processes, and the in-depth understanding of oral anatomy and surgical needs, the requirements for the precision of surgical instruments are becoming increasingly higher. The bone forceps on the market are gradually failing to meet the requirements. Currently, the heads of bone forceps on the market are too narrow, which is not suitable for large-scale orthopedic trimming. They are also prone to slipping and require a lot of effort during operation, making them inconvenient to use. Therefore, it is necessary to develop a new bone forceps. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes an improved bone-biting forceps.

[0004] The technical solution of this utility model is implemented as follows: an improved bone-biting forceps, comprising two forceps bodies connected by hinge screws to form a bone-biting forceps, and further comprising:

[0005] Mounting screws;

[0006] The groove is provided at the jaw position of the bone biting forceps, and the biting surface at the jaw position is set in a tooth shape;

[0007] Both clamp bodies are fixedly connected to elastic elements by mounting screws.

[0008] Furthermore, the elastic element includes two spring sheets, one end of which is connected and the other end is fixed in a pre-drilled bolt hole on the inner wall of the clamp body by a mounting screw.

[0009] Furthermore, the clamp head is at a 15° angle to the handle.

[0010] Furthermore, the clamp head is at a 30° angle to the handle.

[0011] Furthermore, the clamp head is at a 45° angle to the handle.

[0012] Furthermore, the clamp head is at a 90° angle to the handle.

[0013] This utility model has the following beneficial effects:

[0014] 1. By widening the head of the bone-biting forceps, the groove of the forceps head can be increased, which can accommodate larger and more bone pieces. In addition, when trimming large bone pieces, the cutting edges on both sides of the forceps head are less likely to interfere.

[0015] 2. The pliers head and handle are at a certain angle, mainly 15°, 30°, 45° and 90°, which can be used for different parts and make it more convenient to use.

[0016] 3. The forceps have open teeth, so the tips of the teeth will first contact the bone surface and bite into it during use. This effectively prevents slippage in clinical environments with saliva, blood, or saline, thus preventing misoperation caused by slippage.

[0017] 4. The pliers have open teeth, and the tips of the teeth contact the bone surface during use, reducing the contact area. Under the same force, the reduced contact area increases the pressure, so the bone biting pliers can bite into the bone surface more smoothly and cut the bone pieces. In other words, this design saves effort. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a side view of the angle between the handle and the pliers head of this utility model. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figure 1-2 An improved bone-biting forceps is shown, comprising two forceps bodies 1 connected by hinge screws 2 to form a bone-biting forceps, and further comprising: a groove 4, the groove 4 being disposed at the jaw position of the bone-biting forceps, and the biting surface at the jaw position being set in a tooth shape; the forceps head being toothed, the tooth tips first contacting the bone surface and biting into the bone surface during use, effectively preventing slippage in clinical environments containing saliva, blood, and saline, and effectively preventing misoperation caused by slippage.

[0022] It should be noted that compared to existing bone-biting forceps, these forceps are wider. By widening the forceps head, the groove in the head can be increased, which can accommodate larger and more bone pieces. In addition, when trimming large bone pieces, the cutting edges on both sides of the forceps head are less likely to interfere with each other.

[0023] More importantly, the pliers have teeth that contact the bone surface during use, reducing the contact area. With the same force, the reduced contact area increases the pressure, allowing the pliers to bite into the bone surface more easily and cut the bone. In other words, this design saves effort.

[0024] Install screw 3. The two clamp bodies 1 are fixedly connected to the elastic element by the install screw 3. This can reinforce the spring piece 5 at the fixed point and prevent the spring piece 5 from rotating at the fixed point when the handle is closed, so that the spring piece 5 is more stable when compressed.

[0025] The elastic element includes two spring pieces 5. One end of the two spring pieces 5 is connected, and the other end is fixed in the pre-reserved bolt hole on the inner wall of the clamp body 1 by mounting screws 3.

[0026] like Figure 2 As shown, this includes the following angle settings: the angle between the pliers head and the handle is defined as ∠, 15°; 30°; 45°; and 90°.

[0027] The pliers head and handle are at a certain angle, mainly 15°, 30°, 45° and 90°, which can be used for different parts and make them more convenient to use.

[0028] It should be noted that one of the connecting ends of the spring sheet has multiple holes for adjusting the points where the two spring sheets 5 are connected, thus adjusting the elastic force of the elastic element.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved bone-biting forceps, comprising two forceps bodies (1) connected by a hinge screw (2) to form the bone-biting forceps, characterized in that, Also includes: Mounting screws (3); The groove (4) is provided at the head of the bone biting forceps, and the biting surface at the head is set in a tooth shape; Both clamp bodies (1) are fixedly connected to elastic elements by mounting screws (3).

2. The improved bone-biting forceps according to claim 1, characterized in that, The elastic element includes a spring piece (5), and there are two spring pieces (5). One end of the two spring pieces (5) is connected, and the other end is fixed in the pre-reserved bolt hole on the inner wall of the clamp body (1) by a mounting screw (3).

3. The improved bone-biting forceps according to claim 1, characterized in that, The clamp head is at a 15° angle to the handle.

4. The improved bone-biting forceps according to claim 1, characterized in that, The clamp head is at a 30° angle to the handle.

5. An improved bone-biting forceps according to claim 1, characterized in that, The clamp head is at a 45° angle to the handle.

6. An improved bone-biting forceps according to claim 1, characterized in that, The pliers head is at a 90° angle to the handle.