Guide plate device for assisting shaping and fixing of maxillary absorbable plate

Abstract

The invention discloses a guide plate device for assisting shaping and fixing of an upper jaw absorbable plate, and relates to the technical field of medical instruments, the guide plate device comprises a fixing plate and a shaping plate, the fixing plate is located on one side of the shaping plate, and the fixing plate and the shaping plate are detachably connected through a metal connector. On the basis of clinical practical application, the stability of the shaping plate which is temporarily fixed is guaranteed through the stability of the fixing plate, a doctor can freely observe the occlusion state during temporary fixing, and due to the fact that the metal device has good bending performance, a bone block can be repeatedly fixed till the bone block is satisfactory; due to the detachable form of the plastic plate, the absorbable plate can be externally bent into a required form under the condition that the maxillary bone surface is kept at a proper position, and the absorbable plate is fixed on the bone surface at one time after being bent and formed; the absorbable plate is guided to be fixed through the device, and secondary operation after titanium metal is adopted for fixing can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a guide plate device for assisting in shaping and fixing a maxillary absorbable plate. Background Art

[0002] For craniofacial deformity correction surgery in oral orthognathic surgery, the previous internal fixation method basically uses titanium alloy metal plates for fixation. This metal plate has good repeated bending properties and high strength, and is used for internal fixation of chin bone blocks to assist bone fracture healing. At present, domestically produced absorbable craniofacial fixation plate and nail systems have been gradually put into clinical use, but the use of absorbable plates is limited. The shape of existing absorbable plates is basically the same as that of titanium alloy plates. After titanium metal fixation, patients need to undergo a second operation to remove the titanium alloy plates. When the occlusal relationship is not satisfactory during surgical fixation, the doctor needs to repeatedly adjust the position and shape of the external fixation device. Since the absorbable plate cannot be bent multiple times, it cannot be used directly after the maxillary Lefort I osteotomy. After multiple implantation and removal of the nails, the absorbable nail holes will be fixed loosely due to the expansion of the inner diameter of the nail holes. The fixation of the mandibular fracture ends by the absorbable plate must be successful once, so it is necessary to design an auxiliary fixation device. Summary of the invention

[0003] The purpose of the present invention is to provide a guide plate device for assisting in shaping and fixing a maxillary absorbable plate, so as to solve the problems existing in the above-mentioned prior art, assist in fixing the bone ends, and provide morphological assistance for the bending of the absorbable plate.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a guide plate device for assisting in the shaping and fixation of a maxillary absorbable plate, comprising a fixing plate and a shaping plate, wherein the fixing plate is located on one side of the shaping plate, and the fixing plate and the shaping plate are detachably connected via a metal connector.

[0005] In one embodiment, the fixing plate and the shaping plate are planar connection structures.

[0006] In one embodiment, the fixing plate includes a metal structural frame and nail holes for nails to pass through, and the metal structural frame and the nail holes form an integral metal structure.

[0007] In one embodiment, the shaping plate is consistent in size and shape with the absorbable plate.

[0008] In one embodiment, the shaping plate is an L-shaped structure, and is provided with four nail holes for nails to pass through.

[0009] In one embodiment, the nail holes are provided at three end points of the L-shaped structure of the shaping plate and on the long sides of the L-shaped structure.

[0010] In one embodiment, the metal connector is cut to form a structure that can be broken by external force.

[0011] Compared with the prior art, the present invention has achieved the following beneficial technical effects: The guide plate device for assisting the shaping and fixation of the maxillary absorbable plate of the present invention comprises a fixing plate and a shaping plate, wherein the fixing plate is located on one side of the shaping plate, and the fixing plate and the shaping plate are detachably connected via a metal connector. The present invention is based on practical clinical applications, and ensures the stability of the temporarily fixed shaping plate by the stability of the fixing plate, allowing the physician to freely observe the occlusal state during temporary fixation, and because the metal device has good bendability, the bone block can be repeatedly fixed many times until satisfactory; the detachable form of the plastic plate allows the absorbable plate to be bent externally into the desired shape while the maxillary bone surface is kept in an appropriate position, and the plate is fixed once on the bone surface after being bent and formed; the fixation of the absorbable plate is guided by the device, and the occurrence of secondary surgery after titanium metal fixation can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 The initial state of the guide device used to assist in shaping and fixing the maxillary absorbable plate; Figure 2 Diagram of the shaping state of the guide plate device used to assist in shaping and fixing the maxillary absorbable plate; Figure 3 This is a schematic diagram of the state where the guide plate device is fixed in the maxilla and fits the bone surface; Figure 4 Co-shaping the shaping sheet and the absorbent sheet in hot water; Figure 5 To complete the fixation status diagram of the absorbable plate; Among them, 1. fixing plate; 2. shaping plate; 3. nail hole; 4. metal connector. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] The purpose of the present invention is to provide a guide plate device for assisting in shaping and fixing a maxillary absorbable plate, so as to solve the problems existing in the above-mentioned prior art, assist in fixing the bone ends, and provide morphological assistance for the bending of the absorbable plate.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1-Figure 5 As shown, the present invention provides a guide plate device for assisting in shaping and fixing a maxillary absorbable plate, comprising a fixing plate 1 and a shaping plate 2, wherein the fixing plate 1 is located on one side of the shaping plate 2, and the fixing plate 1 and the shaping plate 2 are detachably connected via a metal connector 4.

[0018] The device is a metal whole, mainly composed of a fixing plate 1 and a shaping plate 2, which form a planar structure. The fixing plate 1 includes a metal structural frame and nail holes 3 for nails to fix; the shaping plate 2 is a frame with the same shape and size as the absorbable plate. The shaping plate 2 and the fixing plate 1 are fixed by a metal connector 4, which is cut to form a structure that can be broken by external force.

[0019] In one embodiment, the shaping plate 2 is an L-shaped structure, and four nail holes 3 are provided on the shaping plate 2 for nails to pass through; nail holes 3 are provided at the three ends of the L-shaped structure of the shaping plate 2 and in the middle of the long side of the L-shaped structure. The nail holes 3 on the long side of the L-shaped structure can be provided in the middle of the long side or other positions of the long side, not limited to the middle, and only need to be adaptively provided according to the needs of the bone surface.

[0020] like Figure 3-Figure 5 As shown, when in use, a device of a certain form is first selected, and it is bent so that it can fit on the bone surface. After the fixing plate 1 is fixed through the nail hole 3, the occlusal state is observed, and the shaping plate 2 is shaped, and then the shaping plate 2 is taken out after the metal connector 4 is disconnected, and the shaped shaping plate 2 is overlapped and bent with the absorbable plate and placed in warm water at 85°C, and the absorbable plate is shaped by the shape of the shaping plate 2. The absorbable plate after shaping is fixed to the original position of the shaping plate 2 on the bone surface through the absorbable nail, and after the absorbable plate is successfully fixed and the tail end of the absorbable nail is removed, the fixing plate 1 is removed, and the auxiliary fixation is completed.

[0021] The guide plate device for assisting the shaping and fixation of the maxillary absorbable plate of the present invention enables the doctor to observe the intraoperative occlusal state without bending the absorbable plate in advance or drilling the absorbable nail, and the plastic plate of the device is detachable, and the detached plastic plate can be taken out of the body to assist the bending of the absorbable plate, and will not affect the fixation of the free bone block. The device realizes the clinical application of the absorbable plate in the maxillary Lefort I type osteotomy.

[0022] The guide plate device for assisting in shaping and fixing the maxillary absorbable plate of the present invention has the following advantages: 1. Auxiliary shaping and fixation device for absorbable plate nails in maxillary Lefort 1 osteotomy; 2. The guide plate device is detachable, and its retention is not affected after detachment, and the detached part can be used to assist in bending the absorbable plate in vitro; 3. The connecting device of the device is quick-detachable, and the stability of the connecting device is not affected when the device is bent.

[0023] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A guide plate device for assisting in shaping and fixing a maxillary absorbable plate, characterized in that: It comprises a fixing plate and a shaping plate, wherein the fixing plate is located at one side of the shaping plate, and the fixing plate and the shaping plate are detachably connected via a metal connector.

2. The guide plate device for assisting in shaping and fixing the maxillary absorbable plate according to claim 1, characterized in that: The fixing plate and the shaping plate are planar connection structures.

3. The guide plate device for assisting in shaping and fixing the maxillary absorbable plate according to claim 1, characterized in that: The fixing plate comprises a metal structural frame and nail holes through which nails can pass, and the metal structural frame and the nail holes form an integral metal structure.

4. The guide plate device for assisting in shaping and fixing the maxillary absorbable plate according to claim 1, characterized in that: The shaping plate is consistent with the size and shape of the absorbable plate.

5. The guide plate device for assisting in shaping and fixing the maxillary absorbable plate according to claim 4, characterized in that: The shaping plate is an L-shaped structure, and is provided with four nail holes for nails to pass through.

6. The guide plate device for assisting in shaping and fixing the maxillary absorbable plate according to claim 5, characterized in that: The nail holes are arranged on the three end points of the L-shaped structure of the shaping plate and on the long sides of the L-shaped structure.

7. The guide plate device for assisting in shaping and fixing the maxillary absorbable plate according to claim 1, characterized in that: The metal connecting body is cut to form a structure that can be broken by external force.

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