Guide plate for cranio-maxillofacial operation

Abstract

The utility model relates to the technical field of cranio-maxillofacial guide plates, and discloses a cranio-maxillofacial operation guide plate which comprises a 3D printing operation guide plate, rotating grooves are formed in the four corners of the surface of the 3D printing operation guide plate, rotating rods are rotationally connected to the interiors of the rotating grooves, and fixed adjusting plates are rotationally connected to the surfaces of the rotating rods. A threaded groove is formed in one side of the surface of the fixed adjusting plate, and a titanium screw penetrates through an internal thread of the threaded groove. According to the guide plate for the cranio-maxillofacial operation, through the arrangement of a rotating rod, a fixed adjusting plate, a titanium nail and a titanium alloy gasket, during the use time of a person, the fixed adjusting plate is connected to the surface of the rotating rod in a sleeving mode, then threads of the titanium nail penetrate through one side of the fixed adjusting plate, and then the titanium nail is protected by the titanium alloy gasket, so that abrasion is reduced; and the titanium nail is in threaded connection to the position, needing an operation, of a patient, so that the purposes that personnel can conveniently fix the 3D printing operation guide plate and cutting by a doctor is not hindered are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of craniomaxillofacial guide plates, in particular to a guide plate for craniomaxillofacial surgery. Background Art

[0002] Facial contouring surgery includes mandibular angle arc osteotomy, zygomatic bone osteotomy, genioplasty, etc. Facial contouring surgery is a popular cosmetic surgery, and the market demand is also increasing. However, it is difficult to achieve satisfactory symmetry in facial contouring surgery. Traditional mandibular angle resection surgery mainly relies on the doctor's experience to predict the mandible and nerves. The resection is generally "blind", which is prone to failure, resulting in excessive mandibular resection. Patients may experience symptoms such as bone sutures and bone cracks in the later stage, and severe cases may also cause infection. With the development and popularization of computer-assisted three-dimensional rapid printing technology, surgical guides are printed for patients' facial bones through 3D printing technology. The surgical guides act as a ruler during the operation. The use of surgical guides makes bone resection more precise and accurate, greatly reducing the difficulty of craniomaxillofacial surgery. For patients with bilateral asymmetry or deformity of craniofacial bone structure caused by old trauma or congenital development, surgical operations are often required to improve the asymmetry or deformity of craniofacial bone structure, that is, clinically, old fracture reduction, plastic surgery and other surgical operations are required. In these operations, it is necessary to cut and free the bone blocks to be corrected, accurately position or reposition the bone blocks, accurately restore or reconstruct the craniofacial bone structure to make it bilaterally symmetrical, correct the deformity and thus satisfactorily restore the facial appearance and function. This requires repeated comparisons to determine the relative optimal position of the free bone blocks and then position and fix them. Therefore, a guide plate for craniomaxillofacial surgery is needed.

[0003] In the guide for craniomaxillofacial surgery disclosed in the Chinese utility model patent application disclosure CN212234578U, a sealed titanium alloy gasket is provided on one side of the contact surface between the medical guide body and the bone, so that when the medical guide body fits the bone surface, the inner part of the sealed titanium alloy gasket is in a relatively closed state, and a compression chamber is provided in the middle of the medical guide body, one end of which is connected to the outside. When the piston inside the compression chamber slides, the air pressure inside the compression chamber decreases accordingly. Since the sealed titanium alloy gasket is in a close contact state with the bone surface, the air pressure inside the sealed titanium alloy gasket decreases accordingly, thereby generating suction between the medical guide body and the bone surface, so that the medical guide body can always maintain a stable state during bone resection.

[0004] However, existing guide plates for craniomaxillofacial surgery have the following disadvantages:

[0005] (1) When personnel fix the 3D printed surgical guide, it is inconvenient to fix the guide because the 3D printed surgical guide occupies a large space;

[0006] (2) When personnel cut the patient's surgical site, vibration will be generated, causing the titanium nails to loosen due to vibration and the cutting position to shift. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the utility model provides a guide plate for craniomaxillofacial surgery, which solves the problem raised in the above background technology that when personnel fix the guide plate, it is inconvenient to fix the guide plate because the guide plate occupies a large position, and when personnel cut the patient's surgical site, vibration will be generated, causing the titanium nails to loosen due to the vibration and the cutting position to shift.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a guide plate for craniomaxillofacial surgery, including a 3D printed surgical guide plate, wherein rotation grooves are opened at the four corners of the surface of the 3D printed surgical guide plate, a rotating rod is rotatably connected inside the rotation groove, a fixed adjustment plate is rotatably connected to the surface of the rotating rod, a threaded groove is opened on one side of the surface of the fixed adjustment plate, a titanium nail is penetrated by the internal thread of the threaded groove, a titanium alloy washer is sleeved on the surface of the titanium nail, and a shock absorbing assembly is fixedly connected to the back of the guide plate.

[0011] Optionally, the shock absorbing assembly includes a first rubber pad, a steel plate and a second rubber pad, the surface of the first rubber pad is fixedly connected to the steel plate, and the surface of the steel plate is fixedly connected to the second rubber pad.

[0012] Optionally, the material of the 3D printed surgical guide is self-curing resin, and the thickness of the 3D printed surgical guide is .mm.

[0013] Optionally, the titanium nail is made of titanium alloy, and the density of the titanium nail is .g / cm.

[0014] Optionally, both ends of the rotating rod are fixedly connected to limit plates, and the rotating rod is made of titanium.

[0015] Optionally, the first rubber pad and the second rubber pad are made of resin, and the density of the resin is .g / cubic centimeter.

[0016] (III) Beneficial effects

[0017] The utility model provides a guide plate for craniomaxillofacial surgery, which has the following beneficial effects:

[0018] 1. The guide plate for craniomaxillofacial surgery is provided with a rotating rod, a fixed adjustment plate, a titanium nail and a titanium alloy washer. When the personnel use it, the fixed adjustment plate is sleeved on the surface of the rotating rod, and then the titanium nail thread is passed through one side of the fixed adjustment plate. Then the titanium alloy washer protects the titanium nail and reduces wear. The titanium nail thread is connected to the patient's surgical site, thereby achieving the purpose of facilitating personnel to fix the 3D printed surgical guide plate and not hindering the doctor's cutting.

[0019] 2. The guide plate for craniomaxillofacial surgery is provided with a shock-absorbing component. When used by a person, the doctor will generate vibration when cutting. Then the first rubber pad transmits the vibration to the steel plate, and the second rubber pad cushions the vibration of the steel plate, thereby achieving the purpose of preventing the titanium nail from loosening due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the 3D printed surgical guide of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the shock absorbing component of the utility model.

[0024] In the figure: 1. 3D printed surgical guide; 2. rotating rod; 3. fixed adjustment plate; 4. titanium nail; 5. titanium alloy washer; 6. shock absorbing assembly; 601. first rubber pad; 602. steel plate; 603. second rubber pad; 7. limit plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4The utility model provides a technical solution: a guide plate for craniomaxillofacial surgery, comprising a 3D printed surgical guide plate 1, wherein the four corners of the surface of the 3D printed surgical guide plate 1 are provided with rotation grooves, the interior of the rotation groove is rotationally connected with a rotation rod 2, the surface of the rotation rod 2 is rotationally connected with a fixed adjustment plate 3, a thread groove is provided on one side of the surface of the fixed adjustment plate 3, the internal thread of the thread groove is penetrated by a titanium nail 4, the surface of the titanium nail 4 is sleeved with a titanium alloy washer 5, through the arrangement of the rotation rod 2, the fixed adjustment plate 3, the titanium nail 4 and the titanium alloy washer 5, when the personnel use it, the fixed adjustment plate 3 is sleeved on the surface of the rotation rod 2, and then the titanium nail is 4 threads penetrate one side of the fixed adjustment plate 3, and then the titanium alloy washer 5 protects the titanium nail 4 to reduce wear, and the titanium nail 4 is threadedly connected to the patient's surgical site, thereby achieving the purpose of facilitating personnel to fix the 3D printed surgical guide 1 and not hindering the doctor from cutting. The back of the guide 1 is fixedly connected with a shock absorbing component 6. Through the setting of the shock absorbing component 6, when the personnel use it, the doctor will generate vibration when cutting, and then the first rubber pad 601 transmits the vibration to the steel plate 602, and the second rubber pad 603 buffers the vibration of the steel plate 602, thereby achieving the purpose of preventing the titanium nail 4 from loosening due to vibration;

[0027] The shock absorbing assembly 6 includes a first rubber pad 601, a steel plate 602, and a second rubber pad 603. The surface of the first rubber pad 601 is fixedly connected to the steel plate 602, and the surface of the steel plate 602 is fixedly connected to the second rubber pad 603. The first rubber pad 601, the steel plate 602, and the second rubber pad 603 are arranged to facilitate personnel to buffer the vibration generated during cutting.

[0028] The material of the 3D printed surgical guide 1 is self-curing resin. Through the setting of the self-curing resin, the 3D printed surgical guide 1 will not cause harm to the patient. The thickness of the 3D printed surgical guide 1 is 0.4 mm.

[0029] The material of the titanium nail 4 is titanium alloy. The setting of the titanium alloy can prevent the titanium nail from causing harm to the patient. The density of the titanium nail 4 is 4.51g / cm3;

[0030] Both ends of the rotating rod 2 are fixedly connected with the limit plates 7. The setting of the limit plates 7 facilitates personnel to limit the rotating rod 2. The rotating rod 2 is made of titanium. The setting of titanium increases the service life of the rotating rod 2.

[0031] The material of the first rubber pad 601 and the second rubber pad 603 is resin. The resin increases the service life of the first rubber pad 601 and the second rubber pad 603. The density of the resin is 1.117 g / cm3.

[0032] In the utility model, the working steps of the device are as follows:

[0033] 1. First, when the personnel are using the device, the fixed adjustment plate 3 is sleeved on the surface of the rotating rod 2, and then the titanium nail 4 is threaded through one side of the fixed adjustment plate 3, and then the titanium alloy washer 5 protects the titanium nail 4 to reduce wear, and the titanium nail 4 is threadedly connected to the part where the patient needs surgery, thereby achieving the purpose of facilitating personnel to fix the 3D printed surgical guide 1 and not hindering the doctor from cutting;

[0034] 2. Finally, when the doctor is using it, vibration will be generated during cutting, and then the first rubber pad 601 will transmit the vibration to the steel plate 602, and the second rubber pad 603 will buffer the vibration of the steel plate 602, thereby preventing the titanium nail 4 from loosening due to vibration.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide plate for craniomaxillofacial surgery, comprising a 3D printed surgical guide plate (1), characterized in that: The four corners of the surface of the 3D printed surgical guide (1) are provided with rotation grooves, the interior of the rotation groove is rotatably connected to a rotation rod (2), the surface of the rotation rod (2) is rotatably connected to a fixed adjustment plate (3), one side of the surface of the fixed adjustment plate (3) is provided with a thread groove, the internal thread of the thread groove is penetrated by a titanium nail (4), the surface of the titanium nail (4) is sleeved with a titanium alloy washer (5), and the back of the 3D printed surgical guide (1) is fixedly connected to a shock absorbing component (6).

2. A craniomaxillofacial surgery guide according to claim 1, characterized in that: The shock absorbing assembly (6) comprises a first rubber pad (601), a steel plate (602) and a second rubber pad (603); the surface of the first rubber pad (601) is fixedly connected to the steel plate (602); and the surface of the steel plate (602) is fixedly connected to the second rubber pad (603).

3. The guide plate for craniomaxillofacial surgery according to claim 1, characterized in that: The material of the 3D printed surgical guide (1) is self-curing resin, and the thickness of the 3D printed surgical guide (1) is 0.4 mm.

4. The guide plate for craniomaxillofacial surgery according to claim 1, characterized in that: The material of the titanium nail (4) is titanium alloy, and the density of the titanium nail (4) is 4.51 g / cm3.

5. The guide plate for craniomaxillofacial surgery according to claim 1, characterized in that: Both ends of the rotating rod (2) are fixedly connected to a limiting plate (7), and the rotating rod (2) is made of titanium.

6. A craniomaxillofacial surgery guide according to claim 2, characterized in that: The first rubber pad (601) and the second rubber pad (603) are made of resin, and the density of the resin is 1.117 g / cm3.

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