Oral maxillofacial bone block repositor

By designing an oral and maxillofacial bone repositioning device, and utilizing sensors and control modules to achieve precise repositioning of the jawbone, the problem of complex operation and difficulty in precise control of existing tools is solved, thereby improving the safety and stability of the surgery.

CN120899414AInactive Publication Date: 2025-11-07SUZHOU MUNICIPAL HOSPITAL
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Patent Information

Application Number
CN202511223008.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2025-11-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing tools for repositioning maxillofacial bone blocks are complex to operate, difficult to control precisely, and may cause damage to surrounding soft tissues.

Method used

An oral and maxillofacial bone block repositioning device was designed, including a fixation structure, a repositioning structure, and a sensor system. The sensor monitors the force and clamping force during the repositioning process in real time, and the data is processed and adjusted by the control module to ensure the accuracy and safety of the repositioning.

Benefits of technology

This method achieves precise repositioning of the jawbone, reduces damage to the patient's soft tissues, and improves the safety and stability of the surgery.

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Abstract

The invention provides an oral maxillofacial bone block repositor, and relates to the field of medical equipment. The oral maxillofacial bone block repositor comprises a fixing structure, a control module is fixedly connected to the center of the front side wall of the fixing structure, and the lower ends of the two ends of the fixing structure are jointly and fixedly connected with a reposition structure; the fixing structure is mainly used for fixing and keeping the whole body on the head of a patient and comprises a lantern ring, a plurality of clamping grooves are formed in the outer side wall of the lantern ring, the positions, close to the edges of the two sides, of the center of the side wall of the lantern ring are sleeved with adjusting sleeves respectively, and the two ends of the lantern ring are connected through a connecting buckle. By arranging the reduction structure, the distance between the lower connecting plate and the upper connecting plate is adjusted according to the face condition of a patient and the position of the jaw bone, the two expansion plates are pulled out from the interiors of the two ends of the side plates to be fully attached to the lower end of the face of the patient, and the stability in the reduction process is guaranteed; accurate reset processing is achieved by adjusting the placing position and the tightness of the reset plate.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an oral and maxillofacial bone repositioning device. Background Technology

[0002] Oral and maxillofacial bone repositioning is a core component of oral and maxillofacial surgery, playing a crucial role, especially in the treatment of jaw fractures, correction of facial deformities, and skeletal reconstruction after tumor resection. The maxillofacial bones, including the maxilla, mandible, and zygomatic bone, constitute the supporting structure of the face, affecting not only facial appearance but also vital physiological functions such as chewing, swallowing, and speech. Therefore, precise repositioning of bone fragments is essential for restoring normal physiological function and facial aesthetics in patients.

[0003] Oral and maxillofacial surgery involves the repair and reconstruction of maxillofacial bones and related soft tissues. It is widely used in the treatment of fractures, deformities, post-tumor resection reconstruction, and congenital defects. The maxillofacial bone structure is complex, containing multiple irregularly shaped bone blocks, which are closely connected to important nerves, blood vessels, and masticatory muscles. In oral and maxillofacial surgery, it is often necessary to reposition and fix fractured jawbones or facial bones. Existing repositioning tools are usually complex to operate, difficult to control precisely, and may cause damage to surrounding soft tissues during the operation. Therefore, those skilled in the art have provided an oral and maxillofacial bone block repositioning device to solve the problems mentioned in the background art. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an oral and maxillofacial bone block repositioning device, which solves the problems of complex operation and difficulty in achieving precise control of existing repositioning tools.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: an oral and maxillofacial bone block repositioning device, comprising a fixing structure, wherein a control module is fixedly connected to the center of the anterior sidewall of the fixing structure, and a repositioning structure is fixedly connected to the lower ends of both ends of the fixing structure.

[0008] The fixing structure is mainly used to fix and hold the whole structure under the patient's head. It includes a collar with multiple slots on the outer side wall. Adjustable sleeves are fitted on the center of the side wall of the collar near the two side edges. The two ends of the collar are connected by a connecting buckle. Elastic bands are fixedly connected to the center of the front and rear inner side walls of the collar near the upper edge.

[0009] The reset structure comprises two lower fixed plates, the upper ends of the two lower fixed plates are fixedly connected to the lower end faces of the two adjusting sleeves respectively, upper connecting plates are arranged on the side walls of the two lower fixed plates respectively, the side walls of the two upper connecting plates are connected to the side walls of the two lower fixed plates through second fastening bolts respectively, one ends of the two second fastening bolts respectively penetrate the side walls of the two upper connecting plates and the side walls of the two lower fixed plates and respectively pass to the other ends, and threaded connections of vertical rods are formed at the ends respectively, adjusting screws are respectively threaded at the center positions of the side walls of the two upper connecting plates, lower connecting plates are movably connected to the other ends of the two adjusting screws respectively, reset plates are arranged on the front end sides of the two lower connecting plates respectively, first fastening bolts are arranged at the center positions of the side walls of the two lower connecting plates, one ends of the two first fastening bolts respectively penetrate the side walls of the two lower connecting plates, and threaded connections of the two reset plates are formed at the ends respectively, and detection structures are arranged at the center positions of the side walls of the reset plates respectively.

[0010] Preferably, side plates are fixedly connected to the lower ends of the two vertical rods respectively, expansion plates are arranged at the center positions of the side walls of the two side plates respectively, and the one ends of the two expansion plates respectively penetrate the side walls of the side plates and respectively pass to the interiors.

[0011] Preferably, rear protective plates are arranged at the rear side positions of the lower ends of the two adjusting sleeves, and the front ends of the rear protective plates are connected to the rear side walls of the two lower fixed plates respectively.

[0012] Preferably, the detection structures comprise first sensors and second sensors, and the first sensors and the second sensors are position sensors and force sensors respectively.

[0013] Preferably, the second sensors are mounted on the side walls of the reset plates, the second sensors are used for monitoring the acting force and the clamping force in the reset process in real time, the first sensors are used for detecting the positions and the angles of the reset plates, and the accuracy of the reset is ensured.

[0014] Preferably, the control module is responsible for processing data from the sensor part, executing a control algorithm, receiving data from the first sensors and the second sensors through a data bus, transmitting the data in the form of digital signals, setting a sampling frequency according to the sensor type, calibrating and correcting the received sensor data, eliminating sensor errors and environmental noise, filtering the sensor data, removing high-frequency noise and interference, obtaining accurate data, adjusting the positions and the clamping force of the reset plates according to the sensor data, and executing a safety control strategy according to the sensor data and a safety threshold.

[0015] Preferably, rubber coating layers are respectively coated on the side walls of the two reset plates, the four expansion plates and the two side plates.

[0016] Preferably, the collar and the two adjusting sleeves are made of medical-grade plastic.

[0017] (III) Beneficial Effects

[0018] This invention provides a maxillofacial bone repositioning device. It has the following beneficial effects:

[0019] 1. In this invention, by setting a fixed structure, the connecting buckle is removed from one end of the collar during use, and the collar is placed on the patient's head. The two elastic bands can further ensure the stability of the collar when connected, and can also be used for different head circumferences of different patients.

[0020] 2. In this invention, by setting a repositioning structure, the distance between the lower connecting plate and the upper connecting plate can be adjusted according to the patient's facial condition and jawbone position during use. By pulling the two extension plates out from the inside of both ends of the side plate, they can be fully fitted to the lower end of the patient's face, ensuring stability during the repositioning process. By adjusting the placement and tightness of the repositioning plates, precise repositioning can be achieved.

[0021] 3. In this invention, a first sensor and a second sensor are provided to enable real-time monitoring of the force and clamping force during the repositioning process. By cooperating with the control module, the sensors can be adjusted in a timely manner according to the actual situation to avoid secondary damage to the patient's jawbone and ensure the safety of the repositioning process. Attached Figure Description

[0022] Figure 1 This is an isometric view of the overall structure of the present invention;

[0023] Figure 2 This is an isometric view of the overall structure of the present invention from another perspective;

[0024] Figure 3 This is a side view of the present invention;

[0025] Figure 4 This is a front view of the present invention;

[0026] Figure 5 This is a schematic diagram illustrating the installation and function of the sensor in this invention;

[0027] Figure 6 This is a schematic diagram showing the specific composition of the control module in this invention.

[0028] The components include: 1. Fixed structure; 101. Connecting buckle; 102. Elastic band; 103. Slot; 104. Rear guard plate; 105. Adjusting sleeve; 106. Collar; 2. Reset structure; 201. First sensor; 202. Reset plate; 203. Expansion plate; 204. Lower fixing plate; 205. Second sensor; 206. First fastening bolt; 207. Lower connecting plate; 208. Adjusting screw; 209. Upper connecting plate; 210. Second fastening bolt; 211. Side plate; 212. Vertical rod; 3. Control module. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figures 1-6 As shown, this embodiment of the invention provides an oral and maxillofacial bone block repositioning device, including a fixing structure 1, a control module 3 fixedly connected to the center of the front side wall of the fixing structure 1, and a repositioning structure 2 fixedly connected to the lower ends of both ends of the fixing structure 1.

[0032] The fixing structure 1 is mainly used to fix and hold the whole structure on the patient's head. It includes a collar 106. Multiple slots 103 are provided on the outer side wall of the collar 106. Adjustable sleeves 105 are respectively fitted on the center of the side wall of the collar 106 near the two side edges. The two ends of the collar 106 are connected by a connecting buckle 101. Elastic bands 102 are fixedly connected to the center of the front and rear inner side walls of the collar 106 near the upper edge. By setting the fixing structure 1, when in use, the connecting buckle 101 is removed from one end of the collar 106 and the collar 106 is put on the patient's head. The two elastic bands 102 can further ensure the stability of the collar 106 when connected and can be used for different head circumferences of different patients.

[0033] The reset structure 2 comprises two lower fixing plates 204, upper ends of the two lower fixing plates 204 are fixedly connected to lower end faces of the two adjusting sleeves 105, one side wall of each of the two lower fixing plates 204 is provided with an upper connecting plate 209, side walls of the two upper connecting plates 209 are connected to side walls of the two lower fixing plates 204 through the second fastening bolts 210, one ends of the two second fastening bolts 210 respectively penetrate the side walls of the two upper connecting plates 209 and the side walls of the two lower fixing plates 204 and respectively extend to the other ends, and the other ends are respectively threadedly connected with vertical rods 212, one side wall centers of the two upper connecting plates 209 are respectively threadedly connected with adjusting screw rods 208, the other ends of the two adjusting screw rods 208 are respectively movably connected with lower connecting plates 207, the front ends of the two lower connecting plates 207 are respectively provided with reset plates 202, one side wall centers of the two lower connecting plates 207 are provided with the first fastening bolts 206, one ends of the two first fastening bolts 206 respectively penetrate the side walls of the two lower connecting plates 207, and the other ends are respectively threadedly connected to one side walls of the two reset plates 202, one side wall centers of the two reset plates 202 are respectively provided with detection structures, in use, the distance between the lower connecting plates 207 and the upper connecting plates 209 is adjusted according to the face condition of the patient and the position of the jaw, the two expansion plates 203 are pulled out from the inside of the two ends of the side plates 211, so that they are fully attached to the lower end of the face of the patient, the stability in the reset process is ensured, and the reset process is accurately realized by adjusting the placement position and the tightness of the reset plates 202.

[0034] Lower ends of the two vertical rods 212 are respectively fixedly connected with the side plates 211, two side wall centers of the two side plates 211 are respectively provided with the expansion plates 203, one ends of the two expansion plates 203 respectively penetrate the two side walls of the side plates 211 and respectively extend to the inside.

[0035] The rear guard plates 104 are arranged at the rear side of the lower ends of the sleeves 106, front ends of the rear guard plates 104 are respectively connected to rear side walls of the two lower fixing plates 204, the detection structure comprises a first sensor 201 and a second sensor 205, the first sensor 201 and the second sensor 205 are respectively a position sensor and a force sensor, the second sensor 205 is installed on a side wall of the reset plate 202, and the second sensor 205 is used for monitoring the acting force and the clamping force in the reset process in real time, the first sensor 201 is used for detecting the position and the angle of the reset plate 202, and the accuracy of the reset is ensured.

[0036] The control module 3 is responsible for processing data from the sensor part, executing control algorithm, the control module 3 receives data from the first sensor 201 and the second sensor 205 through the data bus, the data is transmitted in the form of digital signal, the sampling frequency is set according to the sensor type, the received sensor data is calibrated and corrected, the sensor error and environmental noise are eliminated, the sensor data is filtered to remove high frequency noise and interference, accurate data is obtained, the position and clamping force of the reset plate 202 are adjusted according to the sensor data, and the safety control strategy is executed according to the sensor data and the safety threshold.

[0037] The side walls of the two reset plates 202, the four extension plates 203 and the two side plates 211 are respectively coated with rubber coating, so that the patient's skin is not pressed during use.

[0038] Embodiment two:

[0039] An oral and maxillofacial bone block resetter comprises a fixing structure 1, a control module 3 is fixedly connected to the center of the front side wall of the fixing structure 1, and the lower ends of the two ends of the fixing structure 1 are fixedly connected with a reset structure 2.

[0040] The fixing structure 1 is mainly used to fix and keep the whole on the patient's head, comprising a sleeve ring 106, a plurality of clamping grooves 103 are arranged on the outer side wall of the sleeve ring 106, the sleeve ring 106 is sleeved with an adjusting sleeve 105 at the center of the side wall close to the two side edges, the sleeve ring 106 is connected through a connecting buckle 101 between the two ends, the sleeve ring 106 is fixedly connected with elastic bands 102 at the center of the front and rear inner side walls close to the upper end edges, and the fixing structure 1 is arranged, the connecting buckle 101 is detached from one end of the sleeve ring 106 during use, the sleeve ring 106 is sleeved on the patient's head, and the two elastic bands 102 can further ensure the stability of the sleeve ring 106 during connection, and can be suitable for different head circumferences of different patients.

[0041] The reset structure 2 comprises two lower fixing plates 204, upper ends of the two lower fixing plates 204 are fixedly connected to lower end faces of the two adjusting sleeves 105, a side wall of each of the two lower fixing plates 204 is provided with an upper connecting plate 209, side walls of the two upper connecting plates 209 are connected to side walls of the two lower fixing plates 204 through the second fastening bolts 210, one ends of the two second fastening bolts 210 respectively penetrate the side walls of the two upper connecting plates 209 and the side walls of the two lower fixing plates 204 and respectively pass to the other ends, and the ends are respectively threadedly connected with vertical rods 212, a side wall center of each of the two upper connecting plates 209 is threadedly connected with an adjusting screw rod 208, the other end of each of the two adjusting screw rods 208 is movably connected with a lower connecting plate 207, a front end side of each of the two lower connecting plates 207 is provided with a reset plate 202, a side wall center of a front side edge of each of the two lower connecting plates 207 is provided with a first fastening bolt 206, one ends of the two first fastening bolts 206 respectively penetrate side walls of the two lower connecting plates 207, and the ends are respectively threadedly connected to side walls of the two reset plates 202, a side wall center of each of the two reset plates 202 is provided with a detection structure, in use, the distance between the lower connecting plate 207 and the upper connecting plate 209 is adjusted according to the face condition of the patient and the position of the jaw, the two expansion plates 203 are pulled out from the inside of the two ends of the side plate 211, so that they are fully attached to the lower end of the face of the patient, the stability in the reset process is ensured, the reset plate 202 is adjusted to be placed in a position and be loose, accurate reset processing is realized, when the offset condition occurs, one side of the reset plate 202 is fixed, one side of the reset plate 202 is slowly adjusted, the jaw is clamped and pushed to one side, and the reset and clamping effects are realized.

[0042] Lower ends of the two vertical rods 212 are fixedly connected with the side plates 211, side wall centers of the two side plates 211 are respectively provided with the expansion plates 203, one ends of the two expansion plates 203 respectively penetrate the two side walls of the side plate 211 and respectively pass to the inside.

[0043] The rear guard plate 104 is arranged at a rear side of the lower end of the sleeve ring 106, front ends of the rear guard plate 104 are respectively connected to rear side walls of the two lower fixing plates 204, the detection structure comprises a first sensor 201 and a second sensor 205, the first sensor 201 and the second sensor 205 are respectively a position sensor and a force sensor, the second sensor 205 is installed on a side wall of the reset plate 202, and the second sensor 205 is used for monitoring the force and the clamping force in the reset process in real time, the first sensor 201 is used for detecting the position and the angle of the reset plate 202, and the accuracy of the reset is ensured.

[0044] The control module 3 is responsible for processing data from the sensor part, executing control algorithm, the control module 3 receives data from the first sensor 201 and the second sensor 205 through the data bus, the data is transmitted in the form of digital signal, the sampling frequency is set according to the sensor type, the received sensor data is calibrated and corrected, the sensor error and environmental noise are eliminated, the sensor data is filtered to remove high-frequency noise and interference, accurate data is obtained, the position and clamping force of the reset plate 202 are adjusted according to the sensor data, and the safety control strategy is executed according to the sensor data and the safety threshold.

[0045] The side walls of the two reset plates 202, the four expansion plates 203 and the two side plates 211 are respectively coated with a rubber coating to ensure that no uncomfortable compression is caused to the patient's skin during use. The material of the sleeve ring 106 and the two adjusting sleeves 105 is medical plastic.

[0046] Working principle: the application is an oral and maxillofacial bone block resetter, by setting the fixing structure 1, when in use, the connecting buckle 101 is detached from one end of the sleeve ring 106, the sleeve ring 106 is sleeved on the patient's head, the two elastic bands 102 can further ensure the stability of the sleeve ring 106 during connection, and can be suitable for different head circumferences of different patients, when in use, the distance between the lower connecting plate 207 and the upper connecting plate 209 is adjusted according to the facial condition and the position of the jaw bone of the patient, the two expansion plates 203 are pulled out from the inside of the two ends of the side plate 211, so that they are fully fitted on the lower end of the patient's face, ensuring the stability during the reset process, the reset plate 202 is adjusted to be placed in the position and the tightness, so as to realize accurate reset processing; the first sensor 201 and the second sensor 205 are provided, which can realize real-time monitoring of the acting force and the clamping force during the reset process, through cooperation with the control module 3, the actual situation can be adjusted in time, so as to avoid secondary damage to the patient's jaw bone and ensure the safety during the reset process.

[0047] Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. An oral maxillofacial bone block repositioner comprising a fixation structure (1), characterized in that: The control module (3) is fixedly connected to the center of the front side wall of the fixed structure (1), and the reset structure (2) is fixedly connected to the lower ends of the two ends of the fixed structure (1). The fixed structure (1) is mainly used for fixing and holding the whole on the head of a patient, and comprises a sleeve ring (106), a plurality of clamping grooves (103) are arranged on the outer side wall of the sleeve ring (106), adjusting sleeves (105) are respectively arranged on the side wall center of the sleeve ring (106) near the two side edges, the sleeve ring (106) is connected through a connecting buckle (101) between the two ends, and elastic bands (102) are respectively fixedly connected to the front and rear inner side walls of the sleeve ring (106) near the upper end edges. The reset structure (2) comprises two lower fixing plates (204), the upper ends of the two lower fixing plates (204) are fixedly connected to the lower end faces of the two adjusting sleeves (105), upper connecting plates (209) are respectively arranged on the side walls of the two lower fixing plates (204), the side walls of the two upper connecting plates (209) are connected to the side walls of the two lower fixing plates (204) through second fastening bolts (210), one ends of the two second fastening bolts (210) respectively penetrate the side walls of the two upper connecting plates (209) and the side walls of the two lower fixing plates (204) and respectively extend to the other ends, threaded connections of vertical rods (212) are respectively formed at the other ends, adjusting screw rods (208) are respectively threaded connected to the side wall centers of the two upper connecting plates (209), lower connecting plates (207) are respectively movably connected to the other ends of the two adjusting screw rods (208), reset plates (202) are respectively arranged on one side of the front ends of the two lower connecting plates (207), first fastening bolts (206) are arranged on the side wall centers of the two lower connecting plates (207) near the front side edges, one ends of the two first fastening bolts (206) respectively penetrate the side walls of the two lower connecting plates (207), and threaded connections are respectively formed between the other ends and the side walls of the two reset plates (202), and detection structures are respectively arranged on the side wall centers of the two reset plates (202).

2. The dental arch bone block repositioning device of claim 1, wherein: Lower ends of the two vertical rods (212) are fixedly connected with side plates (211), and the side wall centers of the two side plates (211) are respectively provided with expansion plates (203), and one ends of the two expansion plates (203) respectively penetrate the two side walls of the side plate (211) and respectively extend to the interiors.

3. The dental arch bone block repositioning device of claim 1, wherein: A rear guard plate (104) is arranged at the rear side of the lower end of the sleeve ring (106), and the front ends of the rear guard plate (104) are respectively connected to the rear side walls of the two lower fixing plates (204).

4. The dental arch bone block repositioning device of claim 1, wherein: The detection structure comprises a first sensor (201) and a second sensor (205), and the first sensor (201) and the second sensor (205) are respectively a position sensor and a force sensor.

5. The dental dento-maxillofacial bone block repositioning device according to claim 4, characterized in that: The second sensor (205) is mounted on the side wall of the reset plate (202) to monitor the acting force and clamping force in real time during the resetting process, and the first sensor (201) is used for detecting the position and angle of the reset plate (202) to ensure the accuracy of the resetting.

6. The dental dento-maxillofacial bone block repositioning device according to claim 1, wherein: The control module (3) is responsible for processing data from the sensor part, executing control algorithms, receiving data from the first sensor (201) and the second sensor (205) through a data bus, transmitting data in the form of digital signals, setting the sampling frequency according to the sensor type, calibrating and correcting the received sensor data, eliminating sensor errors and environmental noise, filtering the sensor data to remove high-frequency noise and interference, obtaining accurate data, adjusting the position and clamping force of the reset plate (202) according to the sensor data, and executing a safety control strategy according to the sensor data and a safety threshold.

7. The dental arch repositioning appliance of claim 1, wherein: The side walls of the two reset plates (202), the four extension plates (203) and the two side plates (211) are respectively coated with a rubber coating.

8. The dental dento-maxillofacial bone block repositioning device according to claim 1, characterized in that: The materials of the sleeve (106) and the two adjusting sleeves (105) are medical plastics.