Auxiliary positioning device for jaw osteomyelitis operation

Abstract

The utility model provides an auxiliary positioning device for a jaw osteomyelitis operation, belongs to the technical field of medical instruments, and solves the technical problems that in the existing jaw osteomyelitis operation process, when skin is pulled open by skin occlusion forceps to expose a focus part, a plurality of assistants are needed to participate, and the working intensity of the assistants is high. The device comprises a positioning tooth socket, a connecting bridge and a guide plate, the guide plate and a jaw bone are fixed through a screw, a pair of extension arms is arranged on the connecting bridge, an extension assembly is arranged between the two extension arms, a quick release assembly is arranged in one extension arm and matched with the connecting bridge, and a supporting baffle is fixed to the other extension arm. The osteomyelitis guiding and windowing device has the advantages that the osteomyelitis lesion position can be positioned, auxiliary guiding and windowing can be achieved, meanwhile, surrounding tissue can be supported and blocked, a doctor can have a better operation field during an operation, a focus can be exposed more sufficiently, and the focus can be cut off more accurately.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and relates to an auxiliary positioning device, in particular to a jaw osteomyelitis operation auxiliary positioning device. BACKGROUND

[0002] Jaw osteomyelitis is a kind of disease caused by infection of jaw bone, and often involves periosteum, bone cortex and bone marrow tissue, and common ones are suppurative jaw osteomyelitis, infant osteomyelitis, drug-induced osteomyelitis and radiation osteomyelitis. The infection sources of jaw osteomyelitis mainly have three ways, namely, dental origin, injury and blood origin, with the arrival of the aging society, the number of osteomyelitis patients is increasing. At present, the operation treatment methods mainly include: lesion bone section curettage decompression, jaw bone windowing irrigation, complete expansion, lesion site osteotomy, etc.

[0003] Through retrieval, a kind of osteomyelitis windowing positioner is disclosed in Chinese patent literature (application number: 201320891148.X; publication number: CN 203677176 U). A kind of osteomyelitis windowing positioner, including positioning plate and positioning needle, the positioning plate is equipped with multiple positioning through holes, the outer diameter of the positioning needle is slightly smaller than the inner diameter of the positioning through hole, the positioning needle is used to pass through the positioning through hole and corresponding bone hole to realize the positioning between the positioning plate and corresponding long bone to be operated. Bone windowing operation is carried out using the osteomyelitis windowing positioner of the utility model, directly using the spacing accurate positioning hole pre-set on the positioning plate as the benchmark to drill, can realize the accurate, fast drilling of cylindrical long bone, makes the windowing opening neat, avoids the problems of long bone fracture, fracture, rupture, reduces the pain and risk of patients, improves the windowing efficiency of doctors, saves the operation time, reduces the patient operation.

[0004] Although the patent reduces the pain and risk of patients, improves the windowing efficiency of doctors, saves the operation time and reduces the patient operation, but in the operation process, the way of exposing the wound of patient is that the surgical auxiliary personnel clamps the four corners of the wound with skin biting forceps and pulls the skin apart to expose the lesion site in the sight of doctors, and because the operation time often reaches several hours, the labor intensity of surgical auxiliary personnel is very large in this way. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems existing in prior art, and provides a jaw osteomyelitis operation auxiliary positioning device, and the technical problem to be solved by the utility model is how to realize the positioning and auxiliary guiding windowing of osteomyelitis lesion, the surrounding tissue can be supported and blocked, the jaw bone focus can be better exposed, and doctors have a better operation visual field when performing operation.

[0006] The utility model discloses a jaw bone osteomyelitis operation auxiliary positioning device can be through the following technical scheme to realize the purpose:

[0007] A jaw bone osteomyelitis operation auxiliary positioning device, including the positioning mouthguard, the connecting bridge fixed on the positioning mouthguard, the connecting bridge one end fixed connection's guide plate, the guide plate is fixed with jaw bone through screw, and is provided with a pair of extension arm on the connecting bridge, is provided with extension assembly between two extension arms, and one extension arm is provided with quick release assembly, and quick release assembly is cooperated with the connecting bridge, and the other extension arm is fixed with the support baffle.

[0008] The utility model discloses a jaw bone osteomyelitis operation auxiliary positioning device can be through the following technical scheme to realize the purpose:

[0009] The quick release assembly includes the plastic bolt one rotationally connected on one extension arm, the connecting screw hole formed in the connecting bridge, the plastic bolt one is connected with the connecting screw hole through screw thread, and the plastic bevel gear one and the plastic bevel gear two are rotationally connected in one extension arm, the plastic bevel gear one is engaged with the plastic bevel gear two, the plastic bevel gear two is coaxially fixedly connected with the plastic bolt one, and the adjusting wheel one is arranged on one extension arm, and the adjusting wheel one is coaxially fixedly connected with the plastic bevel gear one.

[0010] The above structure can drive the plastic bevel gear one to rotate through the adjusting wheel one, the plastic bevel gear one will drive the plastic bevel gear two to rotate after rotating, the plastic bevel gear two will drive the plastic bolt one to rotate after rotating, the plastic bolt one is connected with the connecting screw hole, the quick release ability of one extension arm and the connecting bridge is realized, so that the disassembly is simple, and the patient's pain is reduced.

[0011] The extension assembly includes the guide screw hole formed in one extension arm, the plastic bolt two rotationally connected on the other extension arm, the plastic bolt two is connected with the guide screw hole through screw thread, and the plastic bevel gear three and the plastic bevel gear four are rotationally connected in the other extension arm, the plastic bevel gear three is engaged with the plastic bevel gear four, the plastic bevel gear four is coaxially fixedly connected with the plastic bolt two, and the adjusting wheel two is arranged on the other extension arm, and the adjusting wheel two is coaxially fixedly connected with the plastic bevel gear three.

[0012] With the above structure, the plastic bevel gear three can be rotated by the control wheel two, the plastic bevel gear four can be rotated by the plastic bevel gear three, the plastic bolt two can be screwed with the guide screw hole by the plastic bevel gear four, so that the extension action of the two extension arms is realized.

[0013] The connecting bridge is provided with a positioning hole, and one of the extension arms is fixed with a positioning block which is inserted into the positioning hole.

[0014] With the above structure, the installation and positioning ability of the extension arm and the connecting bridge is improved by the insertion of the positioning hole and the positioning block, so that the fixing stability is better.

[0015] One of the extension arms is provided with a pair of limiting sliding grooves, and the other extension arm is fixed with a pair of guide sliding rods which are slidably connected with the corresponding limiting sliding grooves.

[0016] With the above structure, the stability of the two extension arms during the extension process is realized by the cooperation of the limiting sliding groove and the guide sliding rod, so that the extension effect is improved.

[0017] Compared with the prior art, the jaw osteomyelitis operation auxiliary positioning device has the following advantages:

[0018] 1. The two extension arms are fixed on the connecting bridge, so that the surrounding tissues can be supported, the personnel has a better working environment during the operation, the two extension arms can be expanded by the extension assembly, the supporting range is improved, the use of the personnel is matched, the application range is improved, and the guide plate is used as.

[0019] 2. The plastic bevel gear one is rotated by the control wheel one, the plastic bevel gear two is rotated by the plastic bevel gear one, the plastic bolt one is rotated by the plastic bevel gear two, the plastic bolt one is connected with the connecting screw hole, the quick disassembly and assembly ability of the one extension arm and the connecting bridge is realized, the disassembly is simple, and the pain of the patient is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic diagram of the utility model.

[0021] Fig. 2 It is a structural schematic diagram of the jaw section in the utility model.

[0022] Fig. 3 It is a structural schematic diagram of the extension assembly and the quick disassembly assembly in the utility model.

[0023] In the diagram: 1. Positioning brace; 2. Connecting bridge; 3. Guide plate; 4. Extension arm; 5. Support plate; 6. Plastic bolt one; 7. Connecting screw hole; 8. Plastic bevel gear one; 9. Plastic bevel gear two; 10. Adjusting wheel one; 11. Guide screw hole; 12. Plastic bolt two; 13. Plastic bevel gear three; 14. Plastic bevel gear four; 15. Adjusting wheel two; 16. Positioning hole; 17. Positioning block; 18. Limiting groove; 19. Guide slide rod. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] like Figs. 1-3 As shown, a surgical auxiliary positioning device for osteomyelitis of the jawbone includes a positioning brace 1, a connecting bridge 2 fixed on the positioning brace 1, and a guide plate 3 fixedly connected to one end of the connecting bridge 2. The guide plate 3 and the positioning brace 1 are both manufactured using 3D printing integral molding technology. The guide plate 3 is fixed to the jawbone by screws. A pair of extension arms 4 are provided on the connecting bridge 2, and an extension component is provided between the two extension arms 4. A quick-release component is provided inside one of the extension arms 4, and the quick-release component cooperates with the connecting bridge 2. A support plate 5 is fixed to the other extension arm 4.

[0026] The shape of the guide plate 3 can be designed according to the lesion range and cutting angle, and the device can be pre-positioned and fixed by the positioning brace 1 to improve the ease of subsequent installation. The two extension arms 4 can be fixed to the connecting bridge 2 by the quick-release assembly, which can support the surrounding tissues, so that the personnel have a better working environment during surgery. The extension assembly allows the two extension arms 4 to be unfolded, increasing the support range, conforming to the personnel's usage, and improving the applicability.

[0027] The quick-release assembly includes a plastic bolt 6 rotatably connected to one of the extension arms 4 and a connecting screw hole 7 on the connecting bridge 2. The plastic bolt 6 is threadedly connected to the connecting screw hole 7. A plastic bevel gear 8 and a plastic bevel gear 9 are rotatably connected inside one of the extension arms 4. The plastic bevel gear 8 and the plastic bevel gear 9 mesh with each other. The plastic bevel gear 9 is coaxially fixedly connected to the plastic bolt 6. An adjusting wheel 10 is provided on one of the extension arms 4. The adjusting wheel 10 is coaxially fixedly connected to the plastic bevel gear 8.

[0028] With the above structure, the plastic bevel gear one 8 is driven to rotate by the adjusting wheel one, the plastic bevel gear two 9 is driven to rotate by the plastic bevel gear one 8, the plastic bolt one 6 is driven to rotate by the plastic bevel gear two 9, the plastic bolt one 6 is connected with the connecting screw hole 7, the quick disassembly and assembly ability of one of the extension arms 4 and the connecting bridge 2 is realized, the disassembly is simple, and the pain of the patient is reduced.

[0029] The extension assembly comprises a guide screw hole 11 formed in one of the extension arms 4, a plastic bolt two 12 rotatably connected to the other extension arm 4, the plastic bolt two 12 is threadedly connected with the guide screw hole 11, the other extension arm 4 is rotatably connected with a plastic bevel gear three 13 and a plastic bevel gear four 14, the plastic bevel gear three 13 and the plastic bevel gear four 14 are engaged, the plastic bevel gear four 14 is coaxially fixedly connected with the plastic bolt two 12, and the other extension arm 4 is provided with an adjusting wheel two 15, the adjusting wheel two 15 is coaxially fixedly connected with the plastic bevel gear three 13.

[0030] With the above structure, the plastic bevel gear three 13 is driven to rotate by the adjusting wheel two, the plastic bevel gear four 14 is driven to rotate by the plastic bevel gear three 13, the plastic bolt two 12 is threadedly connected with the guide screw hole 11 by the plastic bevel gear four 14, and the extension action of the two extension arms 4 is realized.

[0031] The connecting bridge 2 is provided with a positioning hole 16, and the one of the extension arms 4 is fixed with a positioning block 17, and the positioning block 17 is inserted and matched with the positioning hole 16.

[0032] With the above structure, the installation and positioning ability of the extension arm 4 and the connecting bridge 2 is improved by the insertion and matching of the positioning hole 16 and the positioning block 17, and the fixing stability is better.

[0033] One of the extension arms 4 is provided with a pair of limiting sliding grooves 18, and the other extension arm 4 is fixed with a pair of guide sliding rods 19, and the two guide sliding rods 19 are slidably matched with the corresponding limiting sliding grooves 18.

[0034] With the above structure, the stability of the two extension arms 4 during the extension process is realized by the cooperation of the limiting sliding groove 18 and the guide sliding rod 19, and the extension effect is improved.

[0035] The utility model discloses a jaw -face part examination is carried out through spiral CT before operation, and the shape of guiding plate 3 is designed to lesion range and cutting angle, and the device is positioned and fixed through positioning mouthpiece 1 in advance, and the simple degree of fixed installation is improved afterwards, and two extension arms 4 are fixed on connecting bridge 2 through quick -release assembly, and the organization of periphery can be supported and blocked at this time, so that personnel have better operation environment when performing operation, and the extension action of two extension arms 4 is realized through plastic screw bolt two 12 and guide screw hole 11 thread cooperation after plastic bevel gear three 13 is rotated through control wheel two, and plastic bevel gear four 14 is rotated after plastic bevel gear three 13 is rotated, and plastic bevel gear four 14 is rotated after plastic bevel gear three 13 is rotated, and the range of support is improved, and the use condition of personnel is fitted, and the scope of application is improved, and when performing operation, doctors can carry out the resection of lesion, cutting windowing etc.

[0036] Above all, the shape of guiding plate 3 is designed to lesion range and cutting angle, and the device is positioned and fixed through positioning mouthpiece 1 in advance, and the simple degree of fixed installation is improved afterwards, and two extension arms 4 are fixed on connecting bridge 2 through quick -release assembly, and the organization of periphery can be supported and blocked at this time, so that personnel have better operation visual field when performing operation, and two extension arms 4 can be unfolded through extension assembly, and the range of support is improved, and the use condition of clinical is fitted, and the scope of application is improved.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the utility model. The skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace, but will not deviate from the spirit of the utility model or exceed the range defined by the attached claims.

Claims

1. A surgical positioning device for osteomyelitis of the jawbone, comprising a positioning brace (1), a connecting bridge (2) fixed on the positioning brace (1), and a guide plate (3) fixedly connected to one end of the connecting bridge (2), characterized in that, The connecting bridge (2) is provided with a pair of extension arms (4), and an extension component is provided between the two extension arms (4). One of the extension arms (4) is provided with a quick-release component, which cooperates with the connecting bridge (2). The other extension arm (4) is fixed with a support plate (5).

2. The surgical auxiliary positioning device for osteomyelitis of the jawbone according to claim 1, characterized in that, The quick-release assembly includes a plastic bolt (6) rotatably connected to one of the extension arms (4) and a connecting screw hole (7) opened on the connecting bridge (2). The plastic bolt (6) is threadedly connected to the connecting screw hole (7). A plastic bevel gear (8) and a plastic bevel gear (9) are rotatably connected inside one of the extension arms (4). The plastic bevel gear (8) and the plastic bevel gear (9) mesh with each other. The plastic bevel gear (9) is coaxially fixedly connected to the plastic bolt (6). An adjusting wheel (10) is provided on one of the extension arms (4). The adjusting wheel (10) is coaxially fixedly connected to the plastic bevel gear (8).

3. The surgical auxiliary positioning device for osteomyelitis of the jawbone according to claim 1, characterized in that, The extension assembly includes a guide screw hole (11) in one of the extension arms (4) and a plastic bolt two (12) rotatably connected to the other extension arm (4). The plastic bolt two (12) is threadedly connected to the guide screw hole (11). A plastic bevel gear three (13) and a plastic bevel gear four (14) are rotatably connected in the other extension arm (4). The plastic bevel gear three (13) and the plastic bevel gear four (14) mesh with each other. The plastic bevel gear four (14) is coaxially fixedly connected to the plastic bolt two (12). An adjusting wheel two (15) is provided on the other extension arm (4). The adjusting wheel two (15) is coaxially fixedly connected to the plastic bevel gear three (13).

4. The surgical auxiliary positioning device for osteomyelitis of the jawbone according to claim 1, characterized in that, The connecting bridge (2) has a positioning hole (16), and a positioning block (17) is fixed on one of the extension arms (4). The positioning block (17) is inserted into the positioning hole (16).

5. The surgical auxiliary positioning device for osteomyelitis of the jawbone according to claim 1, characterized in that, One of the extended arms (4) has a pair of limiting slide grooves (18) inside, and the other extended arm (4) has a pair of guide slide rods (19) fixed on it. Both guide slide rods (19) slide in cooperation with the corresponding limiting slide grooves (18).

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