Personalized screw placement device for thoracolumbar spine screw channel

Abstract

The utility model provides a thoracolumbar spine nail channel personalized nail placing device, and belongs to the field of surgical instruments in the field of spine surgery in clinical medicine and external science. The screw placement device comprises a holding assembly, a connecting piece and a bone recognition assembly, the connecting piece is used for connecting the holding assembly with the screw tap assembly or the pedicle screw tool bit, and the holding assembly is fixedly connected or detachably connected with one end of the connecting piece; the screw tap assembly or the pedicle screw tool bit is arranged at the other end of the connecting piece and is fixedly or detachably connected with the connecting piece; the bone recognition assembly comprises a torque measuring component, and at least part of the torque measuring component is connected with the screw tap assembly and / or the pedicle screw tool bit so as to obtain the real-time torque of the screw tap assembly and / or the pedicle screw tool bit in the screwing-in process. The real-time torque of the screw tap assembly or the pedicle screw tool bit in the screwing-in process is obtained through the torque measuring component, the matched screw is selected, and the surgical curative effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of surgical instruments in the field of spine surgery in clinical medical science, specifically relates to a thoracolumbar nail channel personalized nailing device. BACKGROUND

[0002] Pedicle screw system is the most commonly used internal fixation technique in spine surgery. However, the stability of the screw is positively correlated with bone mineral density (BMD), and when the bone condition decreases, it will affect the embedding strength between the nail and the bone to varying degrees, often leading to screw loosening, withdrawal, and fracture, which seriously affects the treatment effect. Therefore, preoperative measurement of the BMD of the vertebral body, especially the assessment of the bone condition of the nail channel, is crucial for the selection of spinal internal fixation methods, which helps to take necessary preventive measures, reduce the incidence of intraoperative and postoperative screw loosening and other osteoporosis-related complications, and improve surgical efficacy and patient satisfaction.

[0003] Currently, preoperative dual-energy X-ray absorptiometry (DXA) examination is mainly used to assess the BMD and bone condition of the patient's lumbar vertebrae. However, DXA measures the area BMD and cannot measure the volume BMD, and cannot truly reflect the bone condition within the vertebral body; and this method is easily affected by the posterior attachments of the spine and hyperplastic osteophytes, causing false elevation of BMD. More importantly, DXA examination lacks convenient manual measurement techniques and cannot select and measure the region of interest. Some scholars have measured and analyzed the CT value of the local nail channel based on the PACS system or MIMICS software to assess the local bone condition, which can effectively avoid the errors in DXA examination and more accurately reflect the bone condition around the nail channel. However, this method requires manual selection of the region of interest around the nail channel, which increases the preoperative workload, and it is difficult to ensure that the intraoperative nailing trajectory coincides with the preselected region of interest, which brings difficulties to the accuracy and rigor of the evaluation. Therefore, it is necessary to develop a non-invasive and convenient evaluation tool for evaluating the bone condition around the nail channel and the stability of the screw during the preparation of the nail channel or the placement of the screw. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a thoracolumbar nail channel personalized nailing device to solve the technical problems of large preoperative workload, complex evaluation process, and low evaluation accuracy of the conventional method for evaluating the BMD and bone condition of the patient's thoracolumbar vertebrae.

[0005] The present application is achieved as follows:

[0006] The embodiment of the application provides a thoracolumbar nail channel personalized nail placing device, which is used for completing the hole opening and nail placing of a thoracolumbar vertebra in cooperation with a tap assembly and a pedicle screw head, and comprises: a holding assembly, the holding assembly is convenient for a user to hold and control the drilling position and angle of the thoracolumbar hole opening device; a connecting piece, the connecting piece is used for connecting the holding assembly with the tap assembly or the pedicle screw head, the holding assembly is fixedly connected or detachably connected with one end of the connecting piece, and the tap assembly or the pedicle screw head is arranged at the other end of the connecting piece and fixedly connected or detachably connected with the connecting piece; and a bone quality recognition assembly, the bone quality recognition assembly comprises a torque measuring part, and the torque measuring part is at least partially connected with the tap assembly and / or the pedicle screw head, so as to obtain the real-time torque of the tap assembly and / or the pedicle screw head in the process of screwing.

[0007] Preferably, the nail placing device further comprises a personalized nail placing assembly, the personalized nail placing assembly is signal connected with the torque measuring part, and is used for selecting a corresponding screw scheme output in a preset scheme.

[0008] Preferably, the nail placing device further comprises an electric control assembly, the electric control assembly is installed on the holding assembly, and the electric control assembly is used for driving the connecting piece to rotate, so that the tap assembly or the pedicle screw head is rotated.

[0009] Preferably, the electric control assembly comprises a driving device and a control circuit, the control circuit is electrically connected with the driving device, and the control circuit is used for driving the driving device to rotate forward or reversely.

[0010] Preferably, the bone quality recognition assembly further comprises an ultrasonic assembly, the ultrasonic assembly is used for detecting the bone quality condition around the nail channel.

[0011] Preferably, the nail placing device further comprises a digital display assembly, the digital display assembly is signal connected with the torque measuring part, and the digital display assembly is used for displaying the real-time torque information measured by the torque measuring part.

[0012] Preferably, the holding assembly is a hollow structure.

[0013] Preferably, the holding assembly is a cylindrical structure, and the connecting piece is installed at the circumferential side wall of the holding assembly.

[0014] Preferably, in the detachable connection mode of the connecting piece with the tap assembly or the pedicle screw head, the connecting piece is clamped with the tap assembly or the pedicle screw head.

[0015] The beneficial effects of the application are as follows:

[0016] In the application, the torque measuring part is arranged, the real-time torque of the tap assembly or the pedicle screw head in the process of screwing during the operation is obtained, a corresponding screw scheme is matched according to the real-time torque, an appropriate screw is selected, the incidence of intraoperative and postoperative screw loosening and other osteoporosis related complications is reduced, and the operation effect and patient satisfaction are improved.

[0017] In the present application, by measuring the real-time torque, the user can know the hardness, density and other information of the patient's bone quality, and provide it to the personalized screw placement assembly, and the personalized screw placement assembly recommends the suitable screw for the user according to the bone quality information identified by the bone quality identification assembly. Compared with the traditional method, the bone quality condition of the patient is completely judged by the sense of the clinician, and then the suitable screw is selected. This way is too dependent on the clinician, resulting in poor stability of the operation, that is, sometimes the clinician may misjudge the bone quality condition of the patient due to the sensory deviation, and then select an unsuitable screw, resulting in poor postoperative recovery effect, and even the need for reoperation. The thoracolumbar pedicle personalized screw placement device provided by the present application identifies the bone quality condition of the patient on site according to the bone quality identification assembly, avoids the misjudgment caused by the single operation of the clinician by feeling, and avoids the increase of the preoperative workload by selecting the region of interest around the pedicle by a manual tool, more accurately and conveniently evaluates the bone quality condition of the pedicle, and then selects the spinal internal fixation mode, reduces the incidence of screw loosening and other osteoporosis-related complications during and after the operation, and improves the operation effect and patient satisfaction. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application or the prior art description. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 The thoracolumbar pedicle personalized screw placement device provided by the present application is shown in the structural diagram.

[0020] Figure 2 The thoracolumbar pedicle personalized screw placement device provided by the present application is shown in the structural diagram.

[0021] Figure 3 The structure of the holding assembly of the thoracolumbar pedicle personalized screw placement device provided by the present application is shown in the structural diagram.

[0022] In the figure: 10-holding assembly, 11-connector, 12-digital display assembly, 13-torque measuring part. DETAILED DESCRIPTION

[0023] The following description provides many different embodiments, or examples, for implementing different features of the present application. The specific examples described below are provided for purposes of illustration only and merely serve as examples of the present application, and are not intended to limit the present application in any way.

[0024] Embodiment

[0025] Reference Figure 1 The first embodiment of the present application provides a thoracolumbar pedicle individualized screw placement device for completing the hole opening and screw placement of the thoracolumbar spine in cooperation with a tap assembly and a pedicle screw head, comprising: a holding assembly 10, which is convenient for a user to hold and control the drilling position and angle of the thoracolumbar spine opening device; a connecting piece 11, which is used to connect the holding assembly 10 with the tap assembly or the pedicle screw head, the holding assembly 10 is fixedly connected or detachably connected with one end of the connecting piece 11, and the tap assembly or the pedicle screw head is arranged at the other end of the connecting piece 11 and is fixedly connectable or detachably connectable with the connecting piece 11, and the thoracolumbar pedicle individualized screw placement device further comprises: a bone quality recognition assembly, which comprises a torque measuring part 13, the torque measuring part 13 is at least partially connected with the tap assembly and / or the pedicle screw head to obtain the real-time torque of the tap assembly and / or the pedicle screw head in the process of screwing; and an individualized screw placement assembly (not shown in the figure), which is used to provide the user with an individualized screw scheme according to the real-time torque measured by the torque measuring part 13 in the process of screwing.

[0026] It can be understood that the torque measuring part 13 in the bone quality recognition assembly can help to identify the characteristics of the bone quality. By measuring the real-time torque, the user can know the hardness and density of the patient's bone quality and provide it to the individualized screw placement assembly, and the individualized screw placement assembly recommends the appropriate screw for the user according to the bone quality information identified by the bone quality recognition assembly. Compared with the traditional method, which completely relies on the doctor's sense of touch to judge the patient's bone quality condition and then select the appropriate screw, this method is too dependent on the clinician and has a large subjective interference, and the screw selection has no unified standard, that is, sometimes the patient's bone quality condition may be misjudged due to the doctor's sensory deviation, and then the inappropriate screw is selected, resulting in poor postoperative recovery effect, high screw disturbance, and even the need for reoperation. The thoracolumbar pedicle individualized screw placement device provided by the present application discriminates the patient's bone quality condition on site according to the bone quality recognition assembly, avoids the misjudgment caused by the single operation of the clinician relying on the sense of touch, and avoids the increase of the preoperative workload by manually selecting the region of interest around the pedicle, more accurately and conveniently evaluates the bone quality condition of the pedicle, and then selects the internal fixation method of the spine, reduces the incidence of intraoperative and postoperative screw loosening and other osteoporosis-related complications, and improves the surgical efficacy and patient satisfaction.

[0027] Optionally, the personalized screw setting component can be integrated with the holding component 10 or the connecting piece 11, or can be designed independently, and after obtaining the information of the bone quality identification component, specific suggestions are given to the user. Specifically, the bone quality identification component is signal connected with an external host computer, and the personalized screw setting component is arranged in the host computer or integrated with the host computer. Preferably, in order to reduce manufacturing cost and improve the convenience of use of the thoracolumbar screw channel personalized screw setting device, the holding component 10 is designed to be hollow, and the personalized screw setting component is integrated and arranged in the hollow holding component 10 and signal connected with the bone quality identification component.

[0028] Further, the tap assembly and the pedicle screw head used in conjunction are clamped with the connecting piece 11, and the torque measuring component 13 is a torque sensor at the clamping position of the connecting piece 11 and the tap assembly or the pedicle screw head, which is used to measure the damping torque when the connecting piece 11 drives the tap assembly or the pedicle screw head to rotate. The holding component 10 is in a cylindrical structure, and the connecting piece 11 is installed at the circumferential side wall of the holding component 10, which is convenient for the operator to hold and also facilitates the installation of the connecting piece 11.

[0029] Please refer to Figure 2 Optionally, the tap assembly or the pedicle screw head can be designed integrally with the connecting piece 11, and the holding component 10 and the connecting piece 11 are designed to be detachably connected. When tapping is needed at the target position, the holding component 10 is detachably connected with the connecting piece 11 provided with the tap assembly, and when screwing is needed at the target position, the holding component 10 is detachably connected with the connecting piece 11 provided with the pedicle screw head. At this time, the torque sensor can be arranged at the connection position of the holding component 10 and the connecting piece 11.

[0030] In some embodiments, when the personalized screw setting component identifies that the maximum torque of the tap assembly in the screwing process is lower than a preset first threshold value, the user is prompted to perform bone cement reinforcement treatment of the screw; when the personalized screw setting component identifies that the maximum torque of the tap assembly in the screwing process is between the preset first threshold value and a preset second threshold value, the user is prompted to use a double-threaded screw or an expansion screw; when the personalized screw setting component identifies that the maximum torque of the tap assembly in the screwing process is greater than the preset second threshold value, the user is prompted to select a common single-threaded screw; the personalized screw setting component can match one or more corresponding screw models according to the value of the maximum torque for the user to select.

[0031] Specifically, the personalized screw placement component provides a personalized screw solution by identifying the maximum torque of the tap assembly during insertion. Based on the maximum torque value, the user can select the appropriate screw type and subsequent treatment. Below is a detailed explanation of each threshold condition: Maximum torque below a preset first threshold: When the personalized screw placement component detects that the maximum torque of the tap assembly is below a preset first threshold, this means that the bone strength may be low. In this case, the personalized screw placement component will prompt the user to perform bone cement reinforcement of the screw. Bone cement reinforcement provides additional support and stability, ensuring good fixation of the screw in areas of weak bone.

[0032] Maximum torque between a preset first threshold and a preset second threshold: When the personalized screw placement component detects that the maximum torque of the tap component is between the preset first threshold and the preset second threshold, it indicates that the bone strength is moderate. In this case, the personalized screw placement component will prompt the user to use a dual-threaded screw or an expansion screw. Dual-threaded screws offer better retention and pull-out resistance, making them suitable for providing stable screw fixation under moderate bone strength.

[0033] Maximum torque exceeds a preset second threshold: When the personalized screw placement component detects that the maximum torque of the tap component exceeds the preset second threshold, this indicates high bone strength. In this case, the personalized screw placement component will prompt the user to select a standard single-thread screw. Standard single-thread screws are suitable for providing stable screw fixation in strong bone.

[0034] The personalized screw mounting assembly matches one or more corresponding screw models based on the measured maximum torque value, allowing users to choose the appropriate option. This personalized solution can be adjusted and customized according to specific needs to ensure screw stability and adaptability.

[0035] In some embodiments, the personalized screw placement device for the thoracic and lumbar spine also includes a digital display component 12 and / or a voice alarm component; the digital display component 12 is used to display the real-time torque and maximum torque measured by the torque measuring component 13; the personalized screw placement component provides the user with the following methods: displaying the corresponding screw model on the digital display component 12 and / or providing voice broadcast through the voice broadcast component.

[0036] Please see Figure 3 Specifically, the digital display component 12 is a display device used to display the real-time torque and maximum torque measured by the torque measuring component 13. During the procedure, the digital display component 12 can provide real-time torque readings, allowing the user to understand the current torque level and maximum torque value at any time. This enables the user to better monitor the current tapping damping, screw insertion status, and torque changes.

[0037] Optionally, the digital display assembly 12 can be integrated with the holding assembly 10, similar to the display module of an electronic thermometer, or it can be a separate display device, similar to an electrocardiogram monitoring device, which presents the data returned by the torque sensor on the separate display device, for the user to view.

[0038] In some embodiments, the personalized screw placement assembly further includes a database terminal for storing the patient's thoracolumbar bone condition information and surgical information, including the maximum torque during the tapping process, the screw model selected according to the maximum torque, and the stability evaluation result of the screwed screw; after obtaining the maximum torque, the personalized screw placement assembly queries in the database terminal, and provides clinical advice to the user according to the screw model corresponding to the same or similar maximum torque.

[0039] Specifically: 1. Database terminal: The database terminal is a device or system for storing the patient's thoracolumbar bone condition information and surgical information. It includes a database for recording patient's personal information, bone condition, surgical records and related data. These information can be stored and retrieved according to the patient's unique identification (such as patient number or name).

[0040] 2. Personalized screw placement assembly operation process: During the operation, the personalized screw placement assembly obtains the maximum torque during the screwing process through the torque measuring part 13. Then, the personalized screw placement assembly compares and queries this maximum torque value with the patient information stored in the database terminal.

[0041] 3. Query database: The personalized screw placement assembly uses the obtained maximum torque value to query the patient records with the same or similar maximum torque in the database terminal. This can be achieved by using a pre-defined query algorithm or search method. The database terminal will return the patient records matching the maximum torque.

[0042] 4. Screw model recommendation: According to the patient records returned by the database terminal, the personalized screw placement assembly can obtain the screw model corresponding to the maximum torque and the stability evaluation result of the screwed screw. These information may include the recommended screw model, related surgical techniques and successful screw placement cases.

[0043] 5. Clinical advice: Based on the obtained information, the personalized screw placement assembly can provide clinical advice to the user. This can be achieved by displaying the recommended screw model on the digital display assembly 12 and / or by voice prompt through the voice broadcast assembly. The user can make the final decision according to these suggestions and clinical advice, combined with the actual situation and clinical experience.

[0044] In summary, the personalized screw placement assembly interacts with the database terminal to utilize stored patient information and surgical records to provide users with screw model recommendations and clinical advice tailored to specific maximum torque. Such a system can provide more accurate and personalized choices, helping to improve the success rate of screw placement and patient recovery outcomes. In practical applications, specific details and operational processes may be adjusted and customized.

[0045] Further, the thoracolumbar pedicle individualized screw placement device also includes an electric control assembly, which is at least partially disposed in the holding assembly 10, for controlling the rotation of the connecting member 11 driving the tap assembly and / or the pedicle screw head.

[0046] Specifically: Electric control assembly: The electric control assembly is part of the device, which is at least partially disposed in the holding assembly 10. The electric control assembly is used to control the rotation of the connecting member 11 driving the tap assembly and / or the pedicle screw head. The electric control assembly can include electric drive devices, control circuits and operation interfaces, etc. The control circuit is electrically connected with the drive device for controlling the forward rotation and / or reverse rotation of the drive device. The operation interface can set the gear of the drive device, including adjusting the rotation speed and direction.

[0047] Holding assembly 10 and electric control assembly: The holding assembly 10 is a component for the user to hold and control the thoracolumbar opening device, while the electric control assembly is integrated in the holding assembly 10. In this way, the user can directly control the electric control assembly through the holding assembly 10, thereby realizing the rotation control of the connecting member 11, the tap assembly and / or the pedicle screw head.

[0048] Rotation control of connecting member 11: The electric control assembly controls the rotation of the connecting member 11 to drive the rotation of the tap assembly and / or the pedicle screw head. The specific operation mode can provide rotation power through the electric drive device, and the control circuit controls the electric drive device. The operation interface can provide the user with operation instruction input and monitoring.

[0049] Torque measurement and personalized screw placement: The electric control assembly is closely integrated with the personalized screw placement assembly, which can obtain the real-time torque measured by the torque measurement component 13 in real time. In this way, the electric control assembly can transmit the real-time torque to the personalized screw placement assembly for screw model query and recommendation. According to the real-time torque value, the personalized screw placement assembly can query the corresponding screw model in the database terminal and provide it to the user through the operation interface of the electric control assembly or other display methods.

[0050] In summary, the thoracolumbar pedicle individualized screw placement device achieves control over the rotation of the connecting piece 11, the tap assembly, and / or the pedicle screw head by integrating an electric control component into the holding component 10. The close integration of the electric control component with the individualized screw placement assembly makes real-time torque measurement and screw model recommendation more convenient and efficient. In actual application, specific details and operation procedures may be adjusted and customized to meet specific design and requirements.

[0051] In some embodiments, the bone quality recognition assembly also includes an ultrasonic component (not shown in the figure), which is arranged on the side of the connecting piece 11 close to the patient's thoracolumbar spine, for detecting the bone quality condition around the pedicle and identifying the angle between the thoracolumbar pedicle individualized screw placement device and the vertebral body when the device is used with the tap assembly and the pedicle screw head to complete the drilling and screw placement of the thoracolumbar spine.

[0052] Specifically: Ultrasonic component: The ultrasonic component is part of the thoracolumbar pedicle individualized screw placement device, which is located on the side of the connecting piece 11 close to the patient's thoracolumbar spine. The ultrasonic component uses ultrasonic technology to detect the bone quality condition around the pedicle by emitting ultrasonic waves and receiving echoes.

[0053] Ultrasonic wave propagation and reflection: Ultrasonic waves are emitted from the ultrasonic component, passing through soft tissues into the surrounding pedicle. In the surrounding pedicle, ultrasonic waves interact with different types of tissues and bone quality, and reflect, scatter, and absorb. By analyzing the received ultrasonic signals, information about bone density, bone structure, and bone strength can be obtained; during the operation, the doctor needs to drill and place screws in the pedicle of the vertebral body to ensure the appropriate angle. The ultrasonic component can help the doctor better understand the angle relationship between the vertebral bodies when performing these operations, thereby reducing the risk of surgery.

[0054] Bone quality recognition results: The ultrasonic component analyzes the received ultrasonic signals and identifies the bone quality condition around the pedicle through specific algorithms or pattern recognition techniques. These recognition results can include quantitative or qualitative information about bone density, bone mass, bone strength, and bone structure.

[0055] Individualized screw placement scheme: The bone quality recognition results are combined with the torque information obtained by the torque measurement component 13 to develop an individualized screw placement scheme. According to the patient's bone quality condition and surgical requirements, the position, angle, torque, and other parameters of the screw can be adjusted to achieve more accurate and stable screw placement.

[0056] In summary, the ultrasound assembly in the thoracolumbar pedicle individualized screw placement device utilizes ultrasound technology to analyze the reflected signals to identify the bone quality conditions around the pedicle. This provides more comprehensive bone quality information for individualized screw placement, which can assist in making decisions to develop screw placement plans that are more suitable for the patient's bone quality conditions. Specific embodiments may have different design and functional details, and the above description is only a description of this specific embodiment to illustrate the logic and ideas therein.

[0057] The second embodiment of the present application also provides a method for using a thoracolumbar pedicle individualized screw placement device, including the following steps: obtaining a target position; tapping a screw thread hole at the target position through a tap assembly, and obtaining the maximum torque of the tap assembly during the tapping process through a bone quality recognition assembly; the individualized screw placement assembly provides one or more screw models for the user according to the maximum torque; the user selects a screw and screws it into the screw thread hole at the target position.

[0058] Specifically: 1. Obtain the target position: Before surgery, determine the target position where the screw needs to be placed through medical imaging (such as X-ray, CT scan) or other positioning methods. This can include determining the exact position, angle and depth of the vertebral body, etc.

[0059] 2. Tapping process: Use the tap assembly to tap at the target position to create a screw thread hole. During the tapping process, the ultrasound assembly in the bone quality recognition assembly can detect the position of the tap assembly in the bone and the bone quality condition through ultrasound technology. The ultrasound assembly sends ultrasound waves and receives reflected signals, and analyzes the signals to obtain information about the bone quality.

[0060] 3. Obtain the maximum torque: The torque measuring component 13 in the bone quality recognition assembly measures the real-time torque of the tap assembly during the tapping process and records the maximum torque value. The maximum torque is the maximum torque reached during the tapping process, which can reflect the density and strength of the bone.

[0061] 4. Individualized screw selection: The individualized screw placement assembly provides one or more screw models for the user according to the obtained maximum torque value. By matching and comparing with a pre-established database or empirical model, the individualized screw placement assembly can recommend screw models suitable for the current bone quality condition. These models can include screws with different sizes, shapes and characteristics.

[0062] 5. Screw placement: The user selects the appropriate screw according to the screw model provided by the individualized screw placement assembly and screws it into the screw thread hole at the target position. During the screwing process, the user can monitor the stability and correctness of the screw according to the real-time torque and maximum torque displayed by the digital display assembly 12, as well as other related indicators (such as the position and angle of the screw).

[0063] Through the above steps, the thoracolumbar screw channel personalized screw placement device can assist users in selecting appropriate screw models during thoracolumbar surgery and accurately placing screws into target positions. The personalized screw placement process combines real-time torque measurement and screw model recommendations to provide more accurate and personalized screw placement solutions. This helps improve the accuracy, safety, and patient recovery of surgery. Please note that specific embodiments may have different design and functional details, and the above description is only a description of this specific embodiment to illustrate the logic and ideas therein.

[0064] Further, when the screw is screwed into the threaded hole of the target position, the screw-in torque is obtained, and whether the stability of the screw meets the preset standard is evaluated according to the screw-in torque. If not, a revision screw or enhanced fixation or reconstruction surgery is selected.

[0065] Specifically: 1. Obtain the screw-in torque: During the screwing process, use a torque sensor or a torque sensor to measure and record the screw-in torque. The screw-in torque is the torque or torque value applied to the screw during the screwing process.

[0066] 2. Evaluate the stability of the screw: According to the preset standard or reference value, the obtained screw-in torque is evaluated. These standards can be based on clinical experience, literature research or manufacturer's recommendations to judge the stability of the screw in the bone. For example, a threshold range of screw-in torque can be set, and if the screw-in torque exceeds or is below the range, it is considered not to meet the preset stability standard.

[0067] 3. Results and processing methods: According to the evaluation results of the screw-in torque, it is judged whether the stability of the screw meets the preset standard. If the screw stability meets the expectation, the surgical procedure can continue. If the screw stability does not meet the expectation, further processing measures need to be taken.

[0068] 4. Revision screw: If the screw stability does not meet the standard, but can still be revised, a revision screw can be selected. The revision screw is to increase or adjust the angle, depth or other parameters of the screw to enhance the fixation of the screw.

[0069] 5. Enhanced fixation or reconstruction surgery: If the screw stability cannot be improved by revision screw or the bone condition is poor, more powerful fixation methods or reconstruction surgery may be needed. This can include using larger diameter screws, adding bone cement or performing bone augmentation to enhance the stability of the screw in the bone.

[0070] Through the above steps, the stability of the screw can be judged according to the evaluation results of the screw-in torque. According to the actual situation, the revision screw or other methods of enhancing fixation or reconstruction surgery can be selected to ensure the stability of the screw and the success of the surgery. Please note that the specific embodiments may have different design and functional details, and the above description is only a description of this specific embodiment to illustrate the logic and ideas therein.

[0071] Further, the following steps are also included: uploading the patient information, the maximum torque, the screw-in torque, and the selected screw model to a database for storage.

[0072] Compared with the prior art, the thoracolumbar nail channel personalized screw placement device provided by the present application has the following beneficial effects: the thoracolumbar nail channel personalized screw placement device provided by the embodiment of the present application comprises: a holding assembly 10, which is convenient for a user to hold and control the drilling position and angle of the thoracolumbar opening device; a connecting piece 11, which is used to connect the holding assembly 10 with a tap assembly or a pedicle screw head, the holding assembly 10 is fixedly connected or detachably connected with one end of the connecting piece 11, the tap assembly or the pedicle screw head is arranged at the other end of the connecting piece 11 and is fixedly connectable or detachably connectable with the connecting piece 11, and the thoracolumbar nail channel personalized screw placement device further comprises: a bone quality recognition assembly, which comprises a torque measuring component 13, the torque measuring component 13 is at least partially connected with the tap assembly and / or the pedicle screw head to obtain the real-time torque of the tap assembly and / or the pedicle screw head during screwing; and a personalized screw placement assembly, which is used to provide a personalized screw scheme for the user according to the real-time torque measured by the torque measuring component 13 during screwing. It can be understood that the torque measuring component 13 in the bone quality recognition assembly can help to identify the characteristics of the bone quality. By measuring the real-time torque, the user can know the hardness and density of the patient's bone quality and provide it to the personalized screw placement assembly, and the personalized screw placement assembly recommends the suitable screw for the user according to the bone quality information recognized by the bone quality recognition assembly. Compared with the traditional method, which completely relies on the doctor's sense of touch to judge the bone quality of the patient and then select the suitable screw, this method is too dependent on the clinician, resulting in poor stability of the surgery, that is, sometimes the doctor's sensory deviation may misjudge the patient's bone quality, and then select the unsuitable screw, resulting in poor postoperative recovery effect, and even the need for reoperation. However, the thoracolumbar nail channel personalized screw placement device provided by the present application can identify the bone quality of the patient on site according to the bone quality recognition assembly, avoid the misjudgment caused by the single operation of the clinician relying on the sense of touch, and avoid the increase in the workload before the operation by manually selecting the region of interest around the nail channel, so as to more accurately and conveniently evaluate the bone quality of the nail channel and then select the internal fixation method of the spine, thereby reducing the incidence of screw loosening and other osteoporosis-related complications during and after the operation and improving the surgical efficacy and patient satisfaction.

[0073] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thoracolumbar pedicle individualized screw placement device for completing the thoracolumbar hole and placing the screw by matching the tap assembly and the pedicle screw head, characterized in that, The application relates to a thoracolumbar open road device, which comprises the following components: a holding assembly (10) which facilitates a user to hold and control the drilling position and angle of the thoracolumbar open road device; a connecting piece (11) which is used for connecting the holding assembly (10) with a tap assembly or a pedicle screw head, one end of the holding assembly (10) is fixedly connected or detachably connected with the connecting piece (11), and the tap assembly or the pedicle screw head is arranged at the other end of the connecting piece (11) and is fixedly connected or detachably connected with the connecting piece (11); a bone quality identification assembly which comprises a torque measuring part (13) and is at least partially connected with the tap assembly and / or the pedicle screw head so as to obtain the real-time torque of the tap assembly and / or the pedicle screw head during screwing.

2. A thoracolumbar pedicle individualized implanting device according to claim 1, characterized in that, The screwing device further comprises a personalized screwing assembly which is signal-connected with the torque measuring part (13) and is used for selecting a corresponding screwing scheme output in a preset scheme.

3. A thoracolumbar pedicle individualized implanting device according to claim 1, characterized in that, The screwing device further comprises an electric control assembly which is installed on the holding assembly (10) and is used for driving the connecting piece (11) to rotate so as to drive the tap assembly or the pedicle screw head to rotate.

4. A thoracolumbar pedicle individualized implanting device according to claim 3, characterized in that, The electric control assembly comprises a driving device and a control circuit which is electrically connected with the driving device and is used for driving the driving device to rotate forward or reversely.

5. A thoracolumbar pedicle individualized implanting device according to claim 1, characterized in that, The bone quality identification assembly further comprises an ultrasonic assembly which is used for detecting the bone quality condition around a screw channel.

6. A thoracolumbar pedicle individualized implanting device according to claim 1, characterized in that, The screwing device further comprises a digital display assembly (12) which is signal-connected with the torque measuring part (13) and is used for displaying the real-time torque information measured by the torque measuring part (13).

7. A thoracolumbar pedicle individualized implanting device according to claim 1, characterized in that, The holding assembly (10) is a hollow structure.

8. A thoracolumbar pedicle individualized implanting device according to claim 1, characterized in that, The holding assembly (10) is a cylindrical structure, and the connecting piece (11) is installed at the circumferential side wall of the holding assembly (10).

9. A thoracolumbar pedicle individualized implanting device according to claim 1, characterized in that, In the case that the connecting piece (11) is detachably connected with the tap assembly or the pedicle screw head, the connecting piece (11) is clamped with the tap assembly or the pedicle screw head.

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