Prefabricated PEEK bone plate for trigeminal neuralgia and facial spasm craniotomy

Abstract

The invention provides a prefabricated PEEK bone plate for trigeminal neuralgia and facial spasm craniotomy. The prefabricated PEEK bone plate comprises a bone plate body made of a PEEK material, and the bone plate body comprises a repairing bone plate, a resectable guide plate and a structural connecting rod; a guide hole is formed in the middle of the resectable guide plate, the repairing bone plate is arranged in the guide hole, a plurality of structural connecting rods are arranged on the edge of the top face of the repairing bone plate at intervals, the repairing bone plate is connected with the resectable guide plate through the structural connecting rods, and a plurality of nail holes are formed in the plate face of the resectable guide plate. The nail holes are located in the plate face of the resectable guide plate on the periphery of the guide hole at intervals, and a guide gap located in the edge of the guide hole is formed between the repairing bone plate and the resectable guide plate. According to the prefabricated PEEK bone plate, skull repair can be completed during a first craniotomy, the situation that a patient waits for several months to conduct a second operation after the operation is reduced for craniotomy treatment of trigeminal neuralgia and facial spasm, the operation efficiency can be improved, and the treatment cycle of the patient is shortened.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm. Background Art

[0002] In craniotomy to treat diseases such as trigeminal neuralgia and hemifacial spasm, the surgery usually requires removing part of the skull to access the nerves or blood vessels for decompression. However, after the operation, since the patient's skull has been removed, it must be repaired. The traditional practice is to perform a first craniotomy for decompression treatment, and the patient's skull repair after the operation often needs to be completed through a second operation. In the prior art, patients usually need to undergo a second operation to repair the skull about 3 months after craniectomy. This solution undoubtedly increases the patient's treatment burden and postoperative recovery time.

[0003] Currently, most of the existing repair bone plates are customized bone plates, which need to be designed and manufactured according to the bone window structure of the patient after craniotomy, especially in complex repair cases. Bone plates designed according to imaging data can ensure precise fit with the patient's skull, but this process usually requires a long waiting time after craniotomy, so the patient must undergo two operations. Moreover, during the operation, the patient's skull repair usually needs to be performed at an elective time, so this solution prolongs the patient's treatment cycle and increases the patient's pain and medical expenses.

[0004] The key problem of the existing technology is that the lack of repair bone plates requires patients to undergo a second craniotomy, which not only increases the patient's treatment burden and surgical risks, but also prolongs the recovery time. Therefore, how to design a prefabricated bone plate that can be used directly in the first operation to reduce the second operation has become a core problem that needs to be solved. Summary of the invention

[0005] The present application provides a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm, so as to solve the problem in the prior art that a secondary elective surgery is required to repair the bone plate in craniotomy for trigeminal neuralgia and hemifacial spasm.

[0006] The present application provides a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm, comprising a bone plate body made of PEEK material, wherein the bone plate body comprises a repair bone plate, a resectable guide plate and a structural connecting rod; A guide hole is provided in the middle of the resectable guide plate, the repair bone plate is arranged in the guide hole, a plurality of structural connecting rods are arranged at intervals on the edge of the top surface of the repair bone plate, the repair bone plate is connected to the resectable guide plate through the structural connecting rods, a plurality of nail holes are provided on the plate surface of the resectable guide plate, the plurality of nail holes are spaced on the plate surface of the resectable guide plate outside the guide hole, and a guide gap is formed between the repair bone plate and the resectable guide plate at the edge of the guide hole.

[0007] As an optional embodiment of the present application, three connecting piece grooves are provided on the top surface of the repair bone plate, wherein two of the connecting piece grooves are symmetrically distributed on the left and right sides of the top surface of the repair bone plate, and the other connecting piece groove is provided on the front side of the repair bone plate. The number of the nail holes provided on the surface of the resectable guide plate is three, and the positions of the three nail holes on the surface of the resectable guide plate correspond one-to-one to the positions of the three connecting piece grooves.

[0008] As an optional method of the present application, the width of the connecting piece groove is 2mm-10mm, the length of the connecting piece groove is 5mm-20mm, and the thickness of the repair bone plate area corresponding to the position of the connecting piece groove is 0.5mm-2mm.

[0009] As an optional method of the present application, the connecting plate sink is provided with a connecting hole for connecting the connecting plate.

[0010] As an optional method of the present application, the repair bone plate is provided with drainage holes connected with the top and bottom, and the drainage holes are used for the exudation and drainage of accumulated fluid. The drainage holes can facilitate the attachment and growth of the patient's soft tissue on the repair bone plate.

[0011] As an optional method of the present application, the diameter of the drainage hole is 1mm-10mm.

[0012] As an optional method of the present application, two groups of needle holes distributed front and back are provided on the top surface of the repair bone plate, and the two groups of needle holes are respectively located at the front and back sides of the drainage hole.

[0013] As an optional embodiment of the present application, the needle hole is a V-shaped needle hole that is sunken toward the bottom end of the repair bone plate. The needle hole is arranged horizontally, and the left and right ends of the needle hole are connected.

[0014] As an optional embodiment of the present application, the bottom edge of the repair bone plate is provided with a slope inclined inward at 45°.

[0015] As an optional method of the present application, the bone plate body is designed to have an overall curvature that matches the curve of the human skull.

[0016] Compared with the prior art, this application has the following beneficial effects: 1. The present application provides a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm, wherein the bone plate body comprises a repair bone plate, a resectable guide plate and a structural connecting rod. Compared with the bone plate in the prior art, a resectable guide plate and a structural connecting rod are added to the structure, the resectable guide plate is connected to the repair bone plate through the structural connecting rod, and a plurality of nail holes are provided on the resectable guide plate. When in use, the resectable guide plate can be pre-connected with the skull at the skull to be cut, so that the guide hole of the resectable guide plate is positioned just corresponding to the position of the bone window to be cut, so that the repair bone plate connected to the resectable guide plate can be properly located in the area to be cut, thereby achieving more accurate positioning through the guide hole, so as to facilitate more appropriate skull repair using the repair bone plate during skull repair; 2. The prefabricated PEEK bone plate of the present application, after the entire prefabricated PEEK bone plate is fixed by the resectable guide plate during the operation, when the area to be resected is cut, the guide gap formed between the repair bone plate and the resectable guide plate provides a more accurate cutting guide path for the cutting operation during the operation, thereby ensuring that the shape of the area after the skull resection can be more appropriately adapted to the repair bone plate, and during the skull resection operation, the structural connecting rod can be cut along the cutting guide path provided by the guide gap, thereby realizing the detachment of the repair bone plate from the guide hole of the resectable guide plate, and then the repair bone plate can be quickly removed, and the resectable guide plate is then also disassembled for treatment; 3. The resectable guide plate of the present application can be quickly disconnected from the skull by using titanium nails by opening multiple nail holes. After the cutting is completed, as all the structural connecting rods are cut off, the repair bone plate that is no longer connected to the resectable guide plate is removed, and the resectable guide plate is disassembled. In this way, after the craniotomy treatment is completed, the removed repair bone plate can be placed in the bone window position after cleaning and sterilization to achieve more accurate positioning and placement, and achieve more accurate matching between the repair bone plate and the bone window incision. After the repair bone plate is connected and fixed to the skull, the skull defect can be repaired. The prefabricated PEEK bone plate of the present application can complete the skull repair during the first craniotomy. For the craniotomy treatment of trigeminal neuralgia and hemifacial spasm, the patient has to wait for several months for the second operation after the operation. This not only helps to improve the efficiency of the operation, but also reduces the patient's treatment cycle and recovery time, while also reducing medical costs, and has significant clinical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided in one embodiment of the present application; Figure 2 A schematic diagram of another perspective of a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided by another embodiment of the present application; Figure 3 A three-dimensional model diagram of a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided in one embodiment of the present application; Figure 4 A display diagram of a prefabricated PEEK bone plate used for craniotomy for trigeminal neuralgia and hemifacial spasm provided in an embodiment of the present application during experimental application.

[0019] Description of reference numerals: 10-bone plate body; 100-repair bone plate; 110-connecting plate sink groove; 120-connecting hole; 130-drainage hole; 140-needle hole; 150-slope; 200-removable guide plate; 210-guide hole; 220-nail hole; 300-structural connecting rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0021] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] See also Figure 1-Figure 4 , Figure 1 A schematic diagram of the structure of a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided in one embodiment of the present application; Figure 2 A schematic diagram of another perspective of a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided by another embodiment of the present application; Figure 3 A three-dimensional model diagram of a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided in one embodiment of the present application; Figure 4 This is a diagram showing the prefabricated PEEK bone plate used for craniotomy for trigeminal neuralgia and hemifacial spasm in an embodiment of the present application during experimental application. Figure 1-Figure 3 As shown, an embodiment of the present application provides a prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm, including a bone plate body 10 made of PEEK material, and the bone plate body 10 includes a repair bone plate 100, a resectable guide plate 200 and a structural connecting rod 300.

[0025] Among them, a guide hole 210 is opened in the middle of the resectable guide plate 200, and the repair bone plate 100 is arranged in the guide hole 210. A plurality of structural connecting rods 300 are arranged at intervals on the edge of the top surface of the repair bone plate 100. The repair bone plate 100 is connected to the resectable guide plate 200 through the structural connecting rods 300. A plurality of nail holes 220 are opened on the plate surface of the resectable guide plate 200. The plurality of nail holes 220 are spaced apart on the plate surface of the resectable guide plate 200 outside the guide hole 210, and a guide gap is formed between the repair bone plate 100 and the resectable guide plate 200 at the edge of the guide hole 210.

[0026] The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided in the embodiment of the present application has a bone plate body 10 including a repair bone plate 100, a resectable guide plate 200 and a structural connecting rod 300. Compared with the bone plate in the prior art, a resectable guide plate 200 and a structural connecting rod 300 are added to the structure. The resectable guide plate 200 is connected to the repair bone plate 100 through the structural connecting rod 300, and a plurality of nail holes 220 are provided on the resectable guide plate 200. When in use, the resectable guide plate 200 can be pre-connected with the skull at the skull to be cut through the resectable guide plate 200, so that the guide hole 210 of the resectable guide plate 200 is positioned just corresponding to the position of the bone window to be cut. In this way, it can be ensured that the repair bone plate 100 connected to the resectable guide plate 200 is properly located in the area to be cut, thereby achieving more accurate positioning through the guide hole 210, so that more appropriate skull repair can be performed using the repair bone plate 100 during skull repair.

[0027] At the same time, in the prefabricated PEEK bone plate of the embodiment of the present application, after the entire prefabricated PEEK bone plate is fixed by the resectable guide plate 200 during surgery, when the area to be resected is cut, the guide gap formed between the repair bone plate 100 and the resectable guide plate 200 provides a more accurate cutting guide path for the cutting operation during the operation, thereby ensuring that the shape of the area after the skull resection can be more appropriately adapted to the repair bone plate 100, and during the skull resection operation, the structural connecting rod 300 can be cut off along the cutting guide path provided by the guide gap, thereby achieving the detachment of the repair bone plate 100 from the guide hole 210 of the resectable guide plate 200, and then the repair bone plate 100 can be quickly removed, and the resectable guide plate 200 is then also disassembled for treatment.

[0028] In addition, the resectable guide plate 200 of the embodiment of the present application can be quickly disconnected from the skull by using titanium nails by opening a plurality of nail holes 220. After the cutting is completed, as all the structural connecting rods 300 are cut off, the repair bone plate 100 that is no longer connected to the resectable guide plate 200 is removed, and the resectable guide plate 200 is disassembled. In this way, after the craniotomy treatment is completed, the removed repair bone plate 100 can be placed in the bone window position after cleaning and sterilization to achieve more precise positioning and placement, and achieve more accurate coordination between the repair bone plate 100 and the bone window incision. Then, after the repair bone plate 100 is connected and fixed to the skull, the skull defect can be repaired. Figure 4A display diagram of the prefabricated PEEK bone plate used in the craniotomy for trigeminal neuralgia and hemifacial spasm in the embodiment of the present application during the experimental application is given. The prefabricated PEEK bone plate in the embodiment of the present application can complete the skull repair during the first craniotomy, which reduces the need for patients to wait for a second operation for several months after the operation for the craniotomy treatment of trigeminal neuralgia and hemifacial spasm. This not only helps to improve the efficiency of the operation, but also reduces the treatment cycle and recovery time of the patient, and also reduces the medical cost, and has significant clinical application value.

[0029] In some embodiments, three connecting piece grooves 110 are provided on the top surface of the repair bone plate 100, wherein two connecting piece grooves 110 are symmetrically distributed on the left and right sides of the top surface of the repair bone plate 100, and the other connecting piece groove 110 is provided on the front side of the repair bone plate 100. The number of nail holes 220 opened on the plate surface of the resectable guide plate 200 is three, and the positions of the three nail holes 220 on the plate surface of the resectable guide plate 200 correspond one-to-one to the positions of the three connecting piece grooves 110.

[0030] In the above embodiment, three connecting piece sink grooves 110 are designed on the top surface of the repair bone plate 100, two of which are symmetrically distributed on the left and right sides of the repair bone plate, and the other is arranged on the front side. This method can be mainly used for the stable connection of the connecting piece through the arrangement of the three connecting piece sink grooves 110, ensuring the stable fixation between the repair bone plate 100 and the bone window. In particular, the arrangement of these connecting piece sink grooves 110 can effectively reduce the protrusion of the connecting piece, avoiding the protrusion of the connecting piece after surgery and affecting the beauty of the patient's face. Moreover, through the arrangement of the connecting piece sink grooves 110, the connecting piece can sink when the repair bone plate 100 is connected to the bone window, achieving a smoother fixing effect. This method not only improves the accuracy of the repair effect, but also ensures the natural appearance of the patient after surgery, avoiding the unsightly problem of the protrusion of the connecting piece that is common in traditional repair methods.

[0031] In addition, in this embodiment, the three connecting piece grooves 110 correspond to the three nail holes 220 on the removable guide plate 200 one by one, so that the repair bone plate 100 can be quickly and accurately aligned when placed for skull repair, reducing the time for repeated adjustments during surgery, and after the connecting piece grooves 110 are connected to the connecting piece, the other end of the connecting piece is fixedly connected to the connection point position left by the three nail holes 220 on the removable guide plate 200 when connected to the skull, thereby ensuring the high coordination between the bone window incision and the repair bone plate 100, thereby shortening the operation time and improving the skull repair effect. When connecting the connecting piece to the repair bone plate 100 and connecting the connecting piece to the skull, commonly used titanium nails can be used to achieve rapid connection and fixation. Through this design method, the repair bone plate 100 can be quickly and firmly fixed in the correct position, thereby ensuring accurate repair during surgery.

[0032] In some embodiments, the width of the connecting piece groove 110 is 2 mm-10 mm, the length of the connecting piece groove 110 is 5 mm-20 mm, and the thickness of the repair bone plate 100 corresponding to the location of the connecting piece groove 110 is 0.5 mm-2 mm.

[0033] In the above embodiment, the connecting piece sinking groove 110 is designed to have specific dimensions of 2mm-10mm in width, 5mm-20mm in length, and 0.5mm-2mm in thickness of the repair bone plate 100 region corresponding to the location of the connecting piece sinking groove 110. The setting of these dimension parameters enables the connecting piece sinking groove 110 to accommodate the connecting piece and provide sufficient contact area to improve the fixation stability between the connecting piece and the repair bone plate 100. In this embodiment, through reasonable dimension design, the connecting piece can be more firmly embedded in the connecting piece sinking groove 110, the bearing capacity of the connecting piece is enhanced, and the connecting piece is prevented from loosening or falling off due to external force, thereby maintaining the stability of the repair bone plate 100 and avoiding the displacement of the repair bone plate 100 after surgery.

[0034] In this embodiment, the width and length of the connecting piece groove 110 and the thickness range of the corresponding repair bone plate area are given. In actual production, the size parameters of the connecting piece groove 110 can be designed within this range according to the skull morphology and repair requirements of different patients, and connecting pieces of different specifications can be better connected, so that the repair bone plate 100 and the skull can be more accurately connected during skull repair.

[0035] In actual manufacturing applications, by adopting a reasonable size design of the connecting piece sink 110, the connecting piece can be quickly and smoothly embedded in the operation without excessive adjustments, thus saving operation time. At the same time, due to the improved matching between the connecting piece sink and the repair bone plate 100, the positioning accuracy during the operation can also be enhanced, reducing the need for repeated adjustments during the operation, thereby improving the efficiency and accuracy of the operation.

[0036] In some embodiments, the connection plate sink 110 is provided with a connection hole 120 for connecting the connection plate.

[0037] In the above embodiment, a connection hole 120 is provided on the connection piece sink groove 110 for connecting and fixing the connection piece. Such a design enhances the stability of the connection between the connection piece and the repair bone plate 100, and also avoids the process of additionally opening a hole in the connection piece sink groove 110 during surgery. By providing the connection hole 120, a titanium nail or other suitable fixing member can be used to firmly connect the connection piece to the connection piece sink groove 110, avoiding the risk of the connection piece loosening or falling off due to external force. It should be noted that this connection hole 120 is provided on the connection piece sink groove 110, but does not penetrate the repair bone plate 100, and only the titanium nail can be used to ensure that the connection piece can be firmly connected.

[0038] At the same time, the setting of the connection hole 120 enables the doctor to quickly and accurately complete the fixed connection between the connection piece and the repair bone plate 100 through the titanium nail during the operation. Since the three nail holes 220 on the removable guide plate 200 correspond one-to-one to the three connecting piece sink grooves 110 of the repair bone plate 100, when the removable guide plate 200 is connected to the skull using titanium nails in the three nail holes 220, the three corresponding connection points left on the skull and the connection holes 120 on the three connecting piece sink grooves 110 serve as the connection point positions at both ends of the connecting piece. Since the connection holes 120 on the connecting piece sink grooves 110 and the three nail holes 220 on the removable guide plate 200 are all pre-made on the PEEK bone plate of the embodiment of the present application, the accuracy and coordination degree are very high when the repair bone plate 100 is used for skull repair during surgery. During the operation, the connecting piece can be fixedly connected to the skull and the repair bone plate 100 without repeatedly adjusting the position, providing higher operating efficiency.

[0039] In addition, since the three nail holes 220 and the connection hole 120 are all prefabricated, the repair bone plate 100 can be quickly and accurately connected to the skull during surgery, avoiding displacement and dislocation problems that may occur in traditional surgical methods. In this way, a tight and firm connection is formed between the repair bone plate 100 and the skull, and the shape of the repair area is also guaranteed.

[0040] In some embodiments, drainage holes 130 communicating with the top and bottom are provided on the repair bone plate 100 . The drainage holes 130 are used for the leakage and drainage of accumulated fluid. The drainage holes 130 can facilitate the attachment and growth of the patient's soft tissue on the repair bone plate 100 .

[0041] In the above embodiment, the drainage holes 130 are provided on the repair bone plate 100 to provide a channel connected at the top and bottom of the repair bone plate 100, which can effectively achieve the exudation and drainage of postoperative effusion. By providing the drainage holes 130, this embodiment can remove the effusion in the surgical area after surgery, reducing the occurrence of postoperative inflammatory reactions and complications. Such a structural design not only helps to accelerate the patient's recovery process, but also reduces the risk of infection caused by effusion retention, thereby facilitating the healthy recovery of postoperative wounds and soft tissues.

[0042] The setting of the drainage holes 130 can not only achieve effective drainage of the liquid, but also facilitate the attachment and growth of the patient's soft tissue on the repair bone plate 100 by providing a suitable biological environment. Such a structural design can help the patient's soft tissue to form a better bond with the repair bone plate 100, help to firmly fix the repair bone plate 100, and promote the healing of the soft tissue. Compared with the prior art, this design can further improve the bonding quality between the soft tissue and the bone plate, thereby making the repair effect more durable.

[0043] In addition, the provision of the drainage holes 130 can also avoid swelling and compression caused by the failure to drain the accumulated fluid in time after surgery, thereby accelerating the patient's recovery and improving the patient's comfort after surgery. In this embodiment, the provision of the drainage holes 130 allows the patient to have a more comfortable postoperative experience, reduces the discomfort caused by excessive wound pressure or fluid accumulation, and thus promotes the patient's early mobility and recovery process.

[0044] In some embodiments, the drainage holes 130 have a diameter of 1 mm to 10 mm.

[0045] The drainage holes 130 in the embodiment of the present application are designed to have a pore size range of 1mm-10mm. By setting this optimized size, rapid drainage of the liquid can be effectively achieved. This pore size enables the timely discharge of postoperative effusion and secretions, avoiding complications such as effusion retention, swelling or infection caused by poor drainage. Compared with the prior art, the reasonable pore size design ensures smooth drainage, further reduces postoperative inflammatory response, and helps the patient's recovery process proceed smoothly.

[0046] An appropriate drainage aperture helps speed up postoperative recovery. If the aperture of the drainage aperture 130 is too small, it will lead to poor drainage, while an overly large drainage aperture 130 will easily cause continuous bleeding or infection of the postoperative wound. The drainage aperture 130 is designed with an aperture in the range of 1mm-10mm, which can provide a more appropriate drainage speed, avoiding poor drainage after surgery and ensuring the cleanliness and safety of the environment around the wound. As a result, patients can reduce pain or discomfort caused by effusion, improving postoperative comfort and safety. In actual production and use, the aperture size of the drainage aperture 130 should be adjusted according to the patient's specific situation and surgical requirements to achieve personalized treatment.

[0047] In some embodiments, two groups of needle holes 140 distributed front to back are disposed on the top surface of the repair bone plate 100 , and the two groups of needle holes 140 are located at the front and back sides of the drainage hole 130 , respectively.

[0048] In the above embodiment, two groups of needle holes 140 are arranged on the top surface of the repair bone plate 100, and the two groups of needle holes 140 are respectively located on the front and back sides of the drainage hole 130. Such a design provides a more suitable positioning point for suturing during surgery. This embodiment effectively avoids the difficulty of suturing due to position deviation by reasonably designing two groups of needle holes 140 distributed front and back. The doctor can quickly and accurately insert the suture needle according to the setting of the needle holes, thereby improving the efficiency and accuracy of the suturing operation. This method enables the doctor to successfully complete the fixation of the repair bone plate 100 to the soft tissue, thereby reducing the operation time and reducing the possibility of errors during the operation.

[0049] Moreover, the layout of the two groups of front-to-back needle holes 140 on the top surface of the repair bone plate 100 can provide better mechanical support, so that the soft tissue is more evenly stressed during fixation. The reasonable position arrangement of the needle holes avoids mechanical unevenness caused by single-point suturing, helps prevent soft tissue displacement, thereby promoting wound healing and recovery, and reducing the occurrence of postoperative complications.

[0050] In addition, due to the design of two groups of needle holes 140 distributed front and back, the doctor can adjust the suturing method according to the patient's specific situation, so that the repair bone plate 100 can be quickly and effectively fixed to the surrounding soft tissue, thereby providing a fixed anchor point for the nearby muscle tissue, greatly simplifying the surgical steps and reducing the difficulty of operation.

[0051] In some embodiments, the needle hole 140 is a V-shaped needle hole that is sunken toward the bottom end of the repair bone plate 100 . The needle hole 140 is arranged horizontally, and the left and right ends of the needle hole 140 are connected.

[0052] In the present embodiment, the V-shaped needle hole design adopted by the needle hole 140 has a unique V-shaped structure that sinks toward the bottom end. This design can provide a stronger fixing effect and reduce the risk of suture loosening or slipping. Compared with the traditional straight hole or round hole design, this structure provides a more solid suturing effect, making the connection between the repair bone plate 100 and the soft tissue tighter. Moreover, since the two ends of the needle hole 140 are connected, the suture will not easily slip after insertion, avoiding multiple adjustments during the surgical operation, thereby simplifying the surgical process and improving the operating efficiency. This design is particularly beneficial for areas with narrow operating space or requiring delicate operations, and can provide a more accurate suturing path in a limited space.

[0053] In some embodiments, the bottom edge of the repair bone plate 100 is provided with a slope 150 inclined inward at 45 degrees.

[0054] In the above embodiment, the bottom edge of the repair bone plate 100 is provided with a slope 150 inclined inward at 45 degrees, and such a design can help the repair bone plate 100 to contact and dock with the skull more accurately. Due to the angle design of the slope, the repair bone plate 100 can be naturally embedded in the skull defect to be repaired when placed, thereby improving the matching accuracy between the repair bone plate 100 and the skull, and avoiding the deviation problem that may occur in traditional repair methods.

[0055] The 45° inclined slope design allows the repair bone plate 100 to be smoothly combined with the skull, making it easier to place and dock during surgery. During surgery, doctors do not need to spend too much time on fine-tuning or repeated positioning, because the slope design can help the bone plate to be naturally positioned and fitted. This design simplifies surgical operations and improves surgical efficiency, especially in emergency surgeries that require rapid skull repair. It can reduce surgical time and improve operational efficiency, thereby reducing patient anesthesia time and surgical risks.

[0056] In some embodiments, the bone plate body 10 is designed to be curved in accordance with the curve of the human skull. This method is in line with the currently popular overall structural design of bone plates, so that the bone plate body 10 can better conform to the curve of the human skull. This method allows the repair bone plate 100 to naturally fit the shape of the skull, avoiding the problem of poor contact or discomfort caused by a straight design, and can also improve the aesthetics after surgery and reduce the inferiority complex caused by aesthetic problems after surgery.

[0057] The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm provided in the embodiment of the present application is specifically used in the craniotomy for trigeminal neuralgia and hemifacial spasm as follows: Before the operation begins, the doctor first makes a prefabricated PEEK bone plate of the present application of suitable specifications according to the operation to be performed on the patient and in combination with the actual condition of the patient. The bone plate body 10 of the prefabricated PEEK bone plate includes a repair bone plate 100, a removable guide plate 200 and a structural connecting rod 300. During the operation, the doctor places the entire bone plate body 10 on the skull of the area to be cut, and connects it to the skull through the removable guide plate 200. Specifically, a fixing tool such as a titanium nail can be used to penetrate the nail hole 220 to firmly fix the removable guide plate 200 on the skull surface. In this process, since the repair bone plate 100 is connected to the removable guide plate 200 through the structural connecting rod 300, the repair bone plate has been indirectly fixed in the guide hole 210 while fixing the removable guide plate 200. At this time, the removable guide plate 200 is accurately docked with the bone window position to be cut, ensuring the accurate positioning of the repair bone plate. The repair bone plate 100 is connected to the resectable guide plate 200 through the structural connecting rod 300, and a guide gap is formed between the repair bone plate 100 and the resectable guide plate 200 to ensure accurate positioning with the cutting area. Through such accurate positioning, the repair bone plate 100 can better dock with the skull defect area produced after cutting, thereby improving the postoperative repair effect. Through the guide gap formed between the repair bone plate 100 and the resectable guide plate 200, the doctor can obtain a clear cutting guide path when cutting. During the cutting process, the skull is cut along the cutting guide path formed by the guide gap, and each structural connecting rod 300 will be cut off one by one, so that the repair bone plate 100 can be separated from the guide hole 210 of the resectable guide plate 200, and then the repair bone plate 100 can be removed smoothly. Once the cutting is completed, the doctor can quickly remove the repair bone plate 100, clean it, and sterilize it. After the repair bone plate 100 is removed, the resectable guide plate 200 is also removed to prepare for the next step of repair. The removed repair bone plate 100 can be simply polished at the cutting position according to the smoothness of the cutting of the structural connecting rod 300, and then the repair bone plate 100 after cleaning and sterilization is placed back in the skull defect area and connected to the skull through fixing tools such as titanium nails. At this time, the repair bone plate 100 and the bone window incision are more accurately matched, and the drainage hole 130 provides a postoperative fluid discharge channel, which helps to reduce postoperative complications and promote recovery. After the final fixation of the repair bone plate is completed, the patient enters the postoperative recovery stage. The drainage hole 130 helps the discharge of postoperative fluid to avoid swelling or infection caused by effusion, and also helps the growth of soft tissue on the repair bone plate 100. Through this design, the operation can not only improve the repair effect, but also reduce the patient's treatment cycle, improve surgical efficiency, and thus reduce medical costs.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm, characterized in that: The bone plate body (10) comprises a PEEK material, wherein the bone plate body (10) comprises a repair bone plate (100), a resectable guide plate (200) and a structural connecting rod (300); A guide hole (210) is provided in the middle of the resectable guide plate (200), the repair bone plate (100) is arranged in the guide hole (210), a plurality of structural connecting rods (300) are arranged at intervals on the edge of the top surface of the repair bone plate (100), the repair bone plate (100) is connected to the resectable guide plate (200) through the structural connecting rods (300), a plurality of nail holes (220) are provided on the plate surface of the resectable guide plate (200), the plurality of nail holes (220) are arranged at intervals on the plate surface of the resectable guide plate (200) at the periphery of the guide hole (210), and a guide gap is formed between the repair bone plate (100) and the resectable guide plate (200) at the edge of the guide hole (210).

2. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 1, characterized in that: Three connecting piece grooves (110) are arranged on the top surface of the repair bone plate (100), wherein two of the connecting piece grooves (110) are symmetrically distributed on the left and right sides of the top surface of the repair bone plate (100), and the other connecting piece groove (110) is arranged on the front side of the repair bone plate (100). The number of the nail holes (220) opened on the plate surface of the resectable guide plate (200) is three, and the positions of the three nail holes (220) on the plate surface of the resectable guide plate (200) correspond one-to-one to the positions of the three connecting piece grooves (110).

3. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 2, characterized in that: The width of the connecting piece groove (110) is 2 mm to 10 mm, the length of the connecting piece groove (110) is 5 mm to 20 mm, and the thickness of the repair bone plate (100) corresponding to the position of the connecting piece groove (110) is 0.5 mm to 2 mm.

4. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 2, characterized in that: The connecting piece sink (110) is provided with a connecting hole (120) for connecting the connecting piece.

5. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to any one of claims 2 to 4, characterized in that: The repair bone plate (100) is provided with drainage holes (130) which are connected at the top and bottom. The drainage holes (130) are used for the exudation and drainage of accumulated fluid. The drainage holes (130) can facilitate the attachment and growth of the patient's soft tissue on the repair bone plate (100).

6. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 5, characterized in that: The drainage hole (130) has a hole diameter of 1 mm to 10 mm.

7. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 5, characterized in that: Two groups of needle holes (140) distributed front and back are arranged on the top surface of the repair bone plate (100), and the two groups of needle holes (140) are respectively located on the front and back sides of the drainage hole (130).

8. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 7, characterized in that: The needle hole (140) is a V-shaped needle hole that is sunken toward the bottom end of the repair bone plate (100). The needle hole (140) is arranged horizontally, and the left and right ends of the needle hole (140) are connected.

9. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 1, characterized in that: The bottom edge of the repair bone plate (100) is provided with a slope (150) inclined inwardly at 45 degrees.

10. The prefabricated PEEK bone plate for craniotomy for trigeminal neuralgia and hemifacial spasm according to claim 1, characterized in that: The bone plate body (10) is designed as a whole to have an arc that conforms to the curve of a human skull.

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