TWI837043B - Mandible reconstruction guide set - Google Patents

Abstract

The invention discloses a mandibular reconstruction guide plate set and its use method, which includes: setting the cutting guide plate on the patient's mandible, and making the affected part of the mandibular bone located in the hollow area of the cutting guide plate; cutting along the The leading part of the guide plate is used to resect the affected part so that the mandible has a reconstruction area; the osteotomy guide plate is placed on the patient's fibula, and the patient's fibula to be implanted is resected under the guidance of the osteotomy guide plate; and the reconstruction is positioned The bone plate is placed on the patient's mandible corresponding to the reconstruction area, and the fibula to be implanted is placed in the reconstruction area and fixed with the reconstruction positioning bone plate. Since the cutting guide plate, osteotomy guide plate and reconstruction positioning bone plate are all preoperative It is made according to the shape of each part of the patient, and the reconstruction positioning bone plate is made of highly biocompatible materials and does not need to be removed. Therefore, the present invention can not only improve the accuracy and precision of the surgery but also reduce the cost. Postoperative bite errors can also shorten the duration of surgery.

Description

Mandible reconstruction guide set

The present invention relates to the technical field of a guide plate set for mandibular reconstruction, and in particular to a mandibular reconstruction guide plate set that can reduce postoperative occlusal errors and shorten the surgical duration.

Press, when performing craniofacial surgery or reconstructive surgery for head and neck tumor resection, the doctor has always bent the bone plate of predetermined specifications according to the patient's craniofacial damage or the spatial position after tumor resection during the surgery. into suitable angles and configurations for positioning.

However, the conventional bone plate cannot accurately fit the shape of each patient's craniofacial damage or tumor resection. During the operation, the conventional bone plate must be bent and shaped according to the doctor's rules of thumb. This conventional bone plate does not correspond to the size and shape of the patient's craniofacial damage or tumor after resection, which causes inconvenience in use, and it is also difficult to position the conventional bone plate to accurately match the craniofacial region. The skeletal environment at the damaged site or after tumor resection will seriously affect the accuracy and precision of reconstructive surgery. At the same time, it will also easily lengthen the duration of the surgery.

Therefore, in summary, the inventor of the present invention has spent many years of painstaking research, thinking and design of a mandibular reconstruction guide plate set in order to improve the shortcomings of the conventional technology and thereby enhance industrial implementation and utilization.

The main purpose of the present invention is to provide a mandibular reconstruction guide plate set. The doctor can use the cutting guide plate and the osteotomy guide plate to separate the patient's affected part and the desired implantation respectively. The fibula is removed and the reconstruction positioning bone plate is placed on the patient's mandible. The fibula to be implanted is placed in the reconstruction area and fixed with the reconstruction positioning bone plate. Since the cutting guide plate, osteotomy guide plate and reconstruction positioning bone plate are all It is made according to the shape of each part of the patient before surgery, and the reconstruction positioning bone plate is made of highly biocompatible materials and does not need to be removed. This not only improves the accuracy and precision of the surgery. It can reduce postoperative occlusion errors and shorten the duration of surgery.

Therefore, in order to achieve the above-mentioned purpose, the present invention provides a mandibular reconstruction guide plate set, which is an auxiliary device for mandibular reconstruction surgery, comprising: a cutting guide plate, the cutting guide plate having at least one first hole, a hollow area and at least one guide portion, the cutting guide plate is locked to a patient's mandibular bone by passing a first locking piece through the first hole, and the affected part of the mandibular bone is placed in the hollow area, and the guide portion is used to guide a doctor to cut the affected part; an osteotomy guide plate, the osteotomy guide plate having a plurality of guide grooves and at least one second hole, the guide grooves are arranged At both ends of the osteotomy guide, the osteotomy guide is fixed to the patient's fibula by passing the second locking piece through the second hole, and the doctor is guided to cut a fibula to be implanted through the guide grooves; and a reconstruction positioning bone plate, the reconstruction positioning bone plate has at least one third hole corresponding to the first hole and at least one fourth hole corresponding to the second hole, the reconstruction positioning bone plate is fixed to the patient's mandible by passing the third locking piece through the third hole, and the reconstruction positioning bone plate is fixed to the fibula to be implanted by passing the fourth locking piece through the fourth hole.

The above-mentioned jaw reconstruction guide plate set, wherein the guide portion is a guide groove or a convex edge.

Continuing with the above-mentioned mandibular reconstruction guide plate set, the cutting guide plate and the osteotomy guide plate are made of nylon.

Continuing with the mandibular reconstruction guide plate set described above, the hole diameters of the first hole, the second hole, the third hole and the fourth hole are approximately 2 mm.

Based on the mandibular reconstruction guide plate set described above, the thickness of the reconstruction positioning bone plate is about 2~3mm.

The above-mentioned jaw reconstruction guide plate set, wherein the reconstruction positioning bone plate is made of a material with high biocompatibility.

Continuing with the mandibular reconstruction guide plate set described above, the reconstruction positioning bone plate is made of titanium alloy.

In addition, the present invention further provides a method of using a mandibular reconstruction guide plate set, which includes: disposing a cutting guide plate on a patient's mandible, and positioning the affected part of the mandible bone in the hollow area of the cutting guide plate. inside; resect the affected part along the guide part of the cutting guide so that the mandible has a reconstruction area; place an osteotomy guide plate on the patient's fibula and use the guidance of the osteotomy guide plate The patient's fibula to be implanted is removed; and a reconstruction positioning bone plate is placed on the patient's mandible corresponding to the reconstruction area, and the fibula to be implanted is placed in the reconstruction area and fixed with the reconstruction positioning bone plate .

Continuing with the method of using the mandibular reconstruction guide plate set described above, the cutting guide plate, the osteotomy guide plate and the reconstruction positioning bone plate are manufactured through a 3D printing process.

Following the above-mentioned method of using the mandibular reconstruction guide plate set, the 3D printing process includes: an image acquisition step to obtain image data of the patient's mandible and fibula; and an image reconstruction step to obtain the image data from the patient's mandible and fibula. A 3D information is obtained from the image data, and the 3D information includes the shape information of the mandible and fibula; a design step is to design the cutting guide plate, the osteotomy guide plate and the reconstruction positioning bone plate according to the 3D information, and then design The completed cutting guide plate, the osteotomy guide plate and the reconstructed positioning bone plate are converted into a printing command; a printing and molding step is to print and shape the cutting guide plate and the osteotomy guide plate respectively according to the printing command. Position the bone plate with this reconstruction.

Continuing with the method of using the mandibular reconstruction guide plate set described above, the printing and molding step uses selective laser sintering (SLS) to print and mold.

In summary, the present invention will be described in detail below with specific embodiments. The following examples are for illustration only and do not limit the scope of the present invention. Those skilled in the art will readily understand that various non-critical parameters can be changed or adjusted to produce substantially the same results.

10: Cutting guide

11:The first hole

12: Empty area

13: Guidance Department

20:Osteotomy guide plate

21:Guide groove

22: Second hole

30: Reconstruction positioning bone plate

31: The third hole

32:The fourth hole

M: mandible

MA: Reconstruction Area

T: affected area

F: Fibula

FA: To be implanted into the fibula

S1~S4: Steps

Figure 1 is a schematic diagram of the first process of using the palatal reconstruction guide kit according to the present invention.

Figure 2 is a three-dimensional schematic diagram of the cutting guide of the palatal reconstruction guide set according to the present invention.

Figure 3 is a three-dimensional schematic view of the osteotomy guide plate of the mandibular reconstruction guide plate set of the present invention.

Figure 4 is a three-dimensional schematic diagram of the reconstruction positioning bone plate of the palatal reconstruction guide plate set according to the present invention.

Figure 5 is a schematic diagram of the implementation status of the palatal reconstruction guide plate set according to the present invention.

Figure 6 is a schematic diagram of the second process of using the palatal reconstruction guide kit according to the present invention.

The following describes the implementation of the present invention based on Figures 1 to 6. The description is not intended to limit the implementation of the present invention, but is an example of the implementation of the present invention.

First, please refer to Figures 1 to 5. The present invention provides a mandibular reconstruction guide plate set. The mandibular reconstruction guide plate set of the present invention is an auxiliary device for mandibular reconstruction surgery. It includes: a cutting guide plate 10. The cutting guide plate 10 has at least a first hole 11, a hollow area 12 and at least a guide portion 13. A first fastener (not shown) passes through the first hole 11, a hollow area 12 and at least a guide portion 13. A hole 11 locks the cutting guide 10 to a patient's mandible M, so that the affected part T of the mandible M is located in the hollow area 12, and the guide part 13 is used to guide a doctor to cut the patient's mandible M. The direction of the affected part T; an osteotomy guide plate 20, the osteotomy guide plate 20 has a plurality of guide grooves 21 and at least one second hole 22, and these guide grooves 21 are provided at both ends of the osteotomy guide plate 20, The osteotomy guide plate 20 is locked to the patient's fibula F by a second fastener (not shown) passing through the second hole 22, and guiding the doctor to cut an implant to be implanted through the guide grooves 21. Fibula FA; and a reconstruction positioning bone plate 30. The reconstruction positioning bone plate 30 has at least one third hole 31 corresponding to the first hole 11 and at least one fourth hole 32 corresponding to the second hole 22. , the third locking piece (not shown) passes through the third hole 31 to lock the reconstructed positioning bone plate to the patient's mandible, and the fourth locking piece (not shown) passes through The fourth hole 32 locks the reconstruction positioning bone plate 30 to the fibula FA to be implanted. Therefore, since the reconstruction positioning bone plate 30 is respectively provided with holes corresponding to the cutting guide plate 10 and the osteotomy guide plate 20, it is ensured that the cutting guide plate 10 and the reconstruction positioning bone plate 30 are placed under the patient. The position of the jawbone M is the same, and it is ensured that the fibula FA to be implanted that is removed through the osteotomy guide plate 20 can be accurately combined with the reconstructed positioning bone plate 30, thereby reducing postoperative errors.

Next, as shown in Figures 2 to 4, the guide portion 13 of the cutting guide plate 10 can be a guide groove or a convex edge, and the doctor can follow the guide portion in the form of the guide groove or the convex edge. 13 to remove the affected part T, but the form of the guide part 13 is not limited to these. Preferably, the cutting guide plate 10 and the osteotomy guide plate 20 are made of nylon material; not only that, the first hole 11. The diameters of the second hole 22, the third hole 31 and the fourth hole 32 are approximately 2 mm.

However, regardless of the above embodiment, the thickness of the reconstruction positioning bone plate is about 2~3 mm. In order to prevent the reconstruction positioning bone plate 30 from being removed after surgery, the reconstruction positioning bone plate 30 is made of high biocompatibility. Made of materials, such as titanium alloy.

In addition, the method for using the mandibular reconstruction guide kit of the present invention includes: step S1: placing a cutting guide 10 on a patient's mandibular bone M, and positioning the affected part T of the mandibular bone M in the hollow area 12 of the cutting guide 10 (as shown in FIG. 5(a)); step S2: removing the affected part T along the guide portion 13 of the cutting guide 10 so that the mandibular bone M has a reconstruction area MA (as shown in FIG. 5(b)); step S3: placing a The osteotomy guide plate 20 is set on the patient's fibula F, and the patient's fibula FA to be implanted is removed under the guidance of the osteotomy guide plate 20 (as shown in Figure 5(c)); and step S4: a reconstruction positioning bone plate 30 is set on the patient's mandibular bone M corresponding to the reconstruction area MA (as shown in Figure 5(d)), and the fibula FA to be implanted is set in the reconstruction area MA and fixed with the reconstruction positioning bone plate 30 (as shown in Figure 5(e)).

Furthermore, in order to improve the accuracy and precision of the operation and reduce the error of postoperative occlusal malocclusion, the above-mentioned cutting guide 10, the osteotomy guide 20 and the reconstruction positioning bone plate 30 are manufactured through a 3D printing process and are made according to the shapes of the patient's various parts (mandibular bone M and fibula F) before the operation. However, the 3D printing process includes: an image capture step, obtaining image data of the mandible M and fibula F of the patient; an image reconstruction step, obtaining 3D information from the image data, the 3D information including shape information of the mandible M and fibula F; a design step, designing the cutting guide 10, the osteotomy guide 20 and the reconstruction positioning bone plate 30 according to the 3D information, and converting the designed cutting guide 10, the osteotomy guide 20 and the reconstruction positioning bone plate 30 into a printing instruction; a printing and molding step, printing and molding the cutting guide 10, the osteotomy guide 20 and the reconstruction positioning bone plate 30 according to the printing instruction. In this way, the cutting guide 10, the osteotomy guide 20 and the reconstruction positioning bone plate 30 that match the mandibular bone M and fibula F of the patient can be manufactured through the 3D printing process. Among them, the printing and molding step is to use the selective laser sintering (SLS) method to print and mold.

Finally, the method of using the mandibular reconstruction guide kit can be as shown in Figure 1, where the affected part T and the fibula FA to be implanted are removed in sequence, or as shown in Figure 6, where the fibula FA to be implanted is removed at the same time as the affected part T is removed. The order of these steps is not limited.

Therefore, the present invention does provide a mandibular reconstruction guide set. The doctor can use the cutting guide and the osteotomy guide to respectively remove the patient's affected part and the fibula to be implanted, and then place the reconstruction positioning bone plate on the patient's mandibular bone and place the fibula to be implanted in the reconstruction area and fix it with the reconstruction positioning bone plate. Since the cutting guide, the osteotomy guide and the reconstruction positioning bone plate are all made according to the shape of the patient's various parts before the operation, and the reconstruction positioning bone plate is made of a highly biocompatible material and does not need to be removed, this can not only improve the accuracy and precision of the operation and reduce the postoperative occlusal error, but also shorten the operation time.

However, the above is only a preferred embodiment of the present invention, and it cannot be used to limit the scope of implementation of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description are still within the scope of the present invention patent.

10: Cutting guide

20:Osteotomy guide plate

30: Reconstruction and positioning bone plate

M: mandible

MA: Reconstruction area

T: affected area

F: Fibula

FA: Want to implant fibula

Claims (7)

A mandibular reconstruction guide plate set, which is an auxiliary device for mandibular reconstruction surgery, includes: a cutting guide plate, the cutting guide plate has at least a first hole, a hollow area and at least a guide part , the cutting guide plate is locked to a patient's mandible by the first fastener passing through the first hole, so that the affected part of the mandible is located in the hollow area, and the guide part is used to guide The direction in which a doctor cuts the affected part; an osteotomy guide plate, the osteotomy guide plate has a plurality of guide grooves and at least one second hole, and these guide grooves are arranged at both ends of the osteotomy guide plate, and through The second locking member passes through the second hole to lock the osteotomy guide plate to the patient's fibula, and guides the doctor through the guide grooves to cut a fibula to be implanted; and a reconstruction positioning bone plate, the reconstruction positioning bone plate The bone plate has at least one third hole corresponding to the first hole and at least one fourth hole corresponding to the second hole. The reconstructed positioning bone plate is fixed by a third fastener passing through the third hole. The reconstructed positioning bone plate is locked to the patient's mandible, and the reconstructed positioning bone plate is locked to the fibula to be implanted by passing the fourth locking member through the fourth hole. The lower jaw reconstruction guide plate set as described in claim 1, wherein the guide portion is a guide groove or a convex edge. The jaw reconstruction guide set as described in claim 1, wherein the cutting guide and the osteotomy guide are made of nylon. The mandibular reconstruction guide plate set of claim 1, wherein the diameter of the first hole, the second hole, the third hole and the fourth hole is approximately 2 mm. The jaw reconstruction guide plate set as described in claim 1, wherein the thickness of the reconstruction positioning bone plate is approximately 2~3mm. The jaw reconstruction guide plate set as described in claim 1, wherein the reconstruction positioning bone plate is made of a material with high biocompatibility. The mandibular reconstruction guide plate set as described in claim 6, wherein the reconstruction positioning bone plate is made of titanium alloy.

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