Special rongeur for oral and maxillofacial surgery

Abstract

The utility model relates to the technical field of medical instruments, in particular to a rongeur special for oral and maxillofacial surgery, which comprises a left rongeur head, a right rongeur head, a left rongeur handle and a right rongeur handle, the left rongeur head is hinged with the left rongeur handle, the right rongeur head is hinged with the right rongeur handle, the left rongeur handle is hinged with the right rongeur handle, and the right rongeur handle is hinged with the right rongeur handle. The forceps clip section of the left forceps head and the forceps clip section of the right forceps head are both concave inwards and convex outwards to form an arc-shaped structure, an occlusion ball is arranged at the head end and is of a hemispherical structure, and sawteeth matched with each other are arranged on the ball section of the occlusion ball. The forceps holder sections are arranged to be of the arc-shaped structures which are concave inwards and convex outwards, and the hemispherical occlusion balls are arranged at the head ends of the forceps holder sections, so that the situation that other tissues are scratched in an oral and maxillofacial operation due to the fact that the forceps heads are too sharp is avoided, and due to the arrangement of the sawtooth structures on the occlusion balls, clamping is more stable in the operation process, and slipping is not prone to being caused.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a bone-biting forceps for oral and maxillofacial surgery. Background Technology

[0002] Oral and maxillofacial surgery is a branch of dentistry that primarily studies the etiology, pathology, prevention, and treatment of diseases of the oral organs, facial soft tissues, maxillofacial bones, temporomandibular joint, salivary glands, and certain neck conditions. Oral and maxillofacial bone defects caused by congenital malformations, trauma, tumors, inflammation, etc., not only affect a patient's appearance but can also cause dysfunction in speech, swallowing, and breathing, impacting their health and quality of life, and in severe cases, even threatening their life. Therefore, the repair of oral and maxillofacial bone defects is of great significance.

[0003] A search revealed Chinese patent application number 201921784364.8, which discloses a bone forceps comprising a left forceps head, a right forceps head, a left forceps handle, and a right forceps handle. The left forceps head is connected to the left forceps handle, and the right forceps head is connected to the right forceps handle. The left and right forceps handles are hinged together. Each of the left and right forceps heads has a V-shaped tip at its front end, with an angle of 15–20° between the upper and lower surfaces of the tip. The axial length of the tip is ≥12mm. When fabricating the hinge, the tip ensures that the depth and angle of both hinges are consistent, controlling the opening angle within a safe range of 60–68°. This allows the bone strength to support the hinge, preventing breakage or displacement. After opening, the bone surfaces on both sides can fully contact each other, facilitating postoperative fusion of the bone on the hinge side. During the procedure, the vertebral gate can be fabricated using this bone-biting forceps without the need for other tools. It is also suitable for vertebral lamina of different thicknesses, reducing the difficulty of fabricating the vertebral gate and the risks of cervical laminectomy.

[0004] When performing oral and maxillofacial surgery, the aforementioned bone forceps are used because oral and maxillofacial surgery is usually performed through the oral cavity, where the surgical space is small and the jawbone is relatively narrow and has a certain depth. Therefore, the front end of the existing bone forceps is relatively thick and short, making it impossible to reach deep into the oral cavity for jawbone surgery. In addition, the front end of the existing bone forceps is relatively sharp, which can easily cause damage to other parts of the body. Furthermore, the existing bone forceps are prone to slipping during the clamping process. Summary of the Invention

[0005] The existing bone forceps cannot be inserted into the oral cavity for maxillofacial surgery, and the sharp tip of the existing bone forceps is prone to causing damage to other parts of the body. In addition, the existing bone forceps are prone to slipping during the clamping process.

[0006] Technical approach: This application addresses the problems of existing technologies by providing a bone-biting forceps specifically for oral and maxillofacial surgery. By setting the clamping section of the slender forceps head to an arc-shaped structure with concave inner and convex outer edges, and by setting a serrated occlusal ball structure at the tip of the forceps head, a stable clamping effect is achieved during oral and maxillofacial surgery.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] This application provides a bone-biting forceps for oral and maxillofacial surgery, including a left forceps head, a right forceps head, a left forceps handle, and a right forceps handle. The left forceps head is hinged to the left forceps handle, the right forceps head is hinged to the right forceps handle, the left forceps head is hinged to the right forceps head, and the left forceps handle is hinged to the right forceps handle. The clamping sections of the left and right forceps heads are both concave and convex to form an arc-shaped structure, and the head end is provided with an occlusal ball. The occlusal ball is a hemispherical structure, and the cross-section of the occlusal ball is provided with mutually cooperating serrations.

[0009] In detail, both the left and right jaws consist of two sections: a clamping section at the front end and a joint section at the rear end. The clamping section is 5 cm long, and the joint section is 3 cm long.

[0010] More specifically, the tail end of the joint segment is rotatably connected to the left and right clamp handles respectively via hinge shafts, and the clamp segments are rotatably connected to each other via hinge shafts.

[0011] Furthermore, spring pieces are fixedly connected to the inner sides of the left and right clamp handles, and the free ends of the spring pieces are engaged with each other.

[0012] Preferably, both the left and right clamp handles are provided with anti-slip textures.

[0013] Specifically, the length of both the left and right clamp handles is 14cm.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model features a two-section structure: a joint section and a clamping section. The joint section makes it easier for doctors to operate and clamp the forceps. The clamping section is designed with an inwardly concave and outwardly convex arc shape, and a hemispherical occlusal ball is provided at the tip of the clamping section. This prevents the forceps from being too sharp and scratching other tissues during oral and maxillofacial surgery. The serrated structure on the occlusal ball makes the clamping more stable during surgery and reduces the risk of slippage.

[0016] 2. The forceps head in this utility model is relatively slender compared to the forceps head in the prior art, which facilitates clamping operations during oral and maxillofacial surgery. Since the oral and maxillofacial bone is relatively narrow and has a certain depth, the existing forceps cannot be inserted into the oral and maxillofacial bone for surgical operations. This application is a forceps specifically for oral and maxillofacial surgery, which can meet the needs of oral and maxillofacial surgery. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the overall structure of this utility model;

[0019] Figure 2 This utility model Figure 1 Mid-level upward-view stereoscopic diagram;

[0020] Figure 3 This utility model Figure 1 Middle front view;

[0021] Figure 4 This utility model Figure 3 Enlarged view of section A in the middle;

[0022] In the diagram: 1. Left jaw; 2. Right jaw; 3. Left handle; 4. Right handle; 5. Clamping section; 6. Joint section; 7. Biting ball; 8. Serration; 9. Spring; 10. Anti-slip texture. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "front end", "rear end", "inner side", "outer side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] The inventors' research revealed that bone defects in the maxillofacial region caused by congenital malformations, trauma, tumors, inflammation, etc., not only affect a patient's appearance but can also cause functional impairments in speech, swallowing, and breathing, impacting their health and quality of life, and in severe cases, even threatening their life. Therefore, the repair of maxillofacial bone defects is of great significance. The maxillofacial bone is relatively narrow and has a certain depth, making it impossible for existing bone-biting forceps to be inserted into the oral cavity for maxillofacial surgery. Furthermore, the sharp tips of existing forceps can easily cause damage to other areas, and they are prone to slipping during clamping.

[0027] Based on the above findings, this application provides a bone-biting forceps for oral and maxillofacial surgery, comprising a left forceps head 1, a right forceps head 2, a left forceps handle 3, and a right forceps handle 4. The left forceps head 1 is hinged to the left forceps handle 3, the right forceps head 2 is hinged to the right forceps handle 4, the left forceps head 1 is hinged to the right forceps head 2, and the left forceps handle 3 is hinged to the right forceps handle 4. The clamping sections 5 of the left forceps head 1 and the right forceps head 2 are both concave and convex to form an arc-shaped structure, and the head end is provided with an occlusal ball 7. The occlusal ball 7 is a hemispherical structure, and the cross-section of the occlusal ball 7 is provided with mutually cooperating serrations 8. Example

[0028] Reference Figure 1-4 As shown, this application provides a bone-biting forceps for oral and maxillofacial surgery, including a left forceps head 1, a right forceps head 2, a left forceps handle 3, and a right forceps handle 4. The left forceps head 1 is hinged to the left forceps handle 3, the right forceps head 2 is hinged to the right forceps handle 4, the left forceps head 1 is hinged to the right forceps head 2, and the left forceps handle 3 is hinged to the right forceps handle 4. The clamping sections 5 of the left forceps head 1 and the right forceps head 2 are both concave and convex to form an arc-shaped structure, and the head end is provided with an occlusal ball 7. The occlusal ball 7 is a hemispherical structure, and the cross-section of the occlusal ball 7 is provided with mutually cooperating serrations 8.

[0029] It should be noted that by setting the clamping section 5 as an arc-shaped structure with concave inner and convex outer edges, and by setting a hemispherical occlusal ball 7 at the head end of the clamping section 5, the sharpness of the clamping head is avoided, which may cause scratches on other tissues during oral and maxillofacial surgery. The serrated structure 8 on the occlusal ball 7 makes the clamping more stable during the operation and less prone to slippage.

[0030] Specifically, the clamping segments 5 are all 5cm long, the joint segments 6 are 3cm long, and the left and right clamp handles 3 are both 14cm long.

[0031] Because the oral and maxillary bones are relatively narrow and have a certain depth, the heads of existing bone forceps cannot be inserted into the oral and maxillary bones for surgical operations. Therefore, this application improves the length of the head of the existing bone forceps to make it suitable for oral and maxillary surgery.

[0032] Furthermore, the inner sides of the left clamp handle 3 and the right clamp handle 4 are fixedly connected with spring pieces 9, and the free ends of the spring pieces 9 are engaged with each other.

[0033] As an example, the spring 9 is fixedly connected to the left clamp handle 3 and the right clamp handle 4 by screws.

[0034] Preferably, both the left clamp handle 3 and the right clamp handle 4 are provided with anti-slip textures 10 to avoid slippage and instability during surgical operations by the doctor.

[0035] Specific application examples:

[0036] The specific application of this application in oral and maxillofacial surgery will now be analyzed in detail with reference to the embodiments.

[0037] Oral and maxillofacial surgery is a branch of dentistry that primarily studies the etiology, pathology, prevention, and treatment of diseases of the oral organs, facial soft tissues, maxillofacial bones, temporomandibular joint, salivary glands, and certain neck conditions. Oral and maxillofacial bone defects caused by congenital malformations, trauma, tumors, inflammation, etc., not only affect a patient's appearance but can also cause dysfunction in speech, swallowing, and breathing, impacting their health and quality of life, and in severe cases, even threatening their life. Therefore, the repair of oral and maxillofacial bone defects is of great significance.

[0038] Taking mandibular angle reduction surgery as an example, conventional mandibular angle osteotomy includes intraoral incision, extraoral incision, and combined intraoral and extraoral incision. During the surgery, a miniature oscillating saw, bone chisel, or bone forceps are used to remove the thickened and wide mandibular angle. Each method has its own indications, advantages, and disadvantages. For example, the intraoral incision method leaves a concealed incision and no surgical scar on the face, but removes less bone and has a higher complication rate (such as facial paralysis or localized facial paralysis due to damage to the main trunk or branches of the facial nerve, or massive bleeding due to damage to the facial artery, external carotid artery, or inferior alveolar artery). The extraoral incision method has a relatively lower complication rate and removes a larger amount of bone, but the incision is exposed, leaving a scar post-operatively. Extraoral incision surgery for mandibular angle reduction (square face to oval face) also carries a very dangerous complication: nerve damage. The surgery may damage the mandibular branch of the facial nerve, leading to paralysis of the upper and middle parts of the platysma muscle, the depressor anguli oris muscle, and the depressor labii superioris muscle, resulting in facial deformity (especially when making facial expressions such as smiling) and asymmetry.

[0039] During the surgery, bone forceps are needed to remove the thick and wide mandibular angle. Existing bone forceps are not suitable for mandibular angle reduction surgery. This application provides a bone forceps specifically for oral and maxillofacial surgery. In specific use, the doctor holds the left handle 3 and the right handle 4 of the bone forceps and pinches the left handle 3 and the right handle 4 with his fingers. Through the setting of the joint segment 6, the left handle 3 and the right handle 4 can move relative to each other, thereby controlling the opening and closing of the clamping segment 5.

[0040] The serrations 8 on the biting ball 7 interlock with each other, thereby achieving the clamping and removal of bone or soft tissue.

[0041] In summary, although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A bone-biting forceps for oral and maxillofacial surgery, comprising a left forceps head (1), a right forceps head (2), a left forceps handle (3), and a right forceps handle (4), wherein the left forceps head (1) is hinged to the left forceps handle (3), the right forceps head (2) is hinged to the right forceps handle (4), the left forceps head (1) is hinged to the right forceps head (2), and the left forceps handle (3) is hinged to the right forceps handle (4), characterized in that: The clamping sections (5) of the left jaw (1) and the right jaw (2) are both concave and convex to form an arc-shaped structure, and the head end is provided with a biting ball (7). The biting ball (7) is a hemispherical structure, and the cross section of the biting ball (7) is provided with mutually cooperating serrations (8).

2. The bone-biting forceps for oral and maxillofacial surgery according to claim 1, characterized in that: The length of each clamping segment (5) is 5cm.

3. The bone-biting forceps for oral and maxillofacial surgery according to claim 2, characterized in that: The left clamp handle (3) and the right clamp handle (4) are fixedly connected to the inner sides of the spring piece (9), and the free ends of the spring piece (9) are engaged with each other.

4. The bone-biting forceps for oral and maxillofacial surgery according to claim 3, characterized in that: Both the left clamp handle (3) and the right clamp handle (4) are provided with anti-slip texture (10).

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