Auxiliary system for temporomandibular joint reduction and fixation and its use method

Abstract

The present invention provides an auxiliary system for the reduction and fixation of the temporomandibular joint, comprising an auxiliary pressurizing device, which is arranged between an upper and a lower mandibular support, wherein the upper mandibular support is arranged in the upper molar area, and the lower mandibular support is arranged in the lower molar area. The upper mandibular support is fixed to one end of a connecting rod, and the other end of the connecting rod is fixed to a top cap arranged on the top of the head by passing around the patient's face. The top cap is detachably connected to a restraint belt wrapped around the head. The auxiliary pressurizing device is connected to one end of the upper mandibular support and is also connected to a pressure display and a pressurizing system through a pipeline. The present invention realizes the force application to the auxiliary pressurizing device by manually controlling the pressurizing system, artificially controls the pressurizing direction, and can constrain the force size through the pressure display, thereby realizing the reduction and fixation of the dislocated temporomandibular joint and effectively preventing secondary damage after fixation.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical auxiliary devices, and in particular relates to an auxiliary system for temporomandibular joint reduction and fixation and a method of using the system. Background Art

[0002] The temporomandibular joint (TMJ) is a joint in the mandibular and facial area capable of both rotational and sliding movement. Its anatomy and kinematics are among the most complex in the human body. The TMJ's primary functions include chewing, speech, swallowing, and facial expressions. Chewing places stress on the joint, while speech, singing, and facial expressions require significant flexibility. Therefore, the TMJ's anatomy requires both stability and flexibility. However, a TMJ dislocation occurs when the condyle slips out of the joint socket during movement, exceeding the normal range of joint motion and preventing it from returning to its original position. As the only joint in the body, the TMJ possesses unique characteristics. Dislocations can be categorized as unilateral or bilateral, and according to the direction and location of condyle dislocation, they can be classified as anterior, posterior, superior, or lateral. Therefore, TMJ dislocations are not simple and can occur in a variety of complex situations, including bilateral anterior dislocation, unilateral anterior dislocation, bilateral posterior dislocation, and unilateral posterior dislocation. For different types of temporomandibular joint dislocation, clinical treatment is often carried out by manual reduction, surgical reduction and medical device-assisted reduction. Reduction needs to be performed according to the patient's specific situation. Secondly, clinically, temporomandibular joint reduction requires greater force and the patient's body position needs to cooperate. Clinically, patients are often required to sit on a small stool against the wall with their backs against the wall and their jaws level with the doctor's elbows for easy force application. When applying force, doctors are prohibited from using violence to protect the temporomandibular joint ligaments and muscles and prevent secondary injury. After reduction, bandages should be used to fix the mandible in time to prevent dislocation again.

[0003] In summary, when reducing temporomandibular joint dislocation, the improvement method must be implemented according to the patient's actual situation. At the same time, sufficient force must be provided, violence must be prohibited to prevent secondary injury, and the reduction needs of patients in special postures must be met. After reduction, the mandible must be fixed in time to prevent re-dislocation.

[0004] According to the above requirements, the current treatment methods commonly used in clinical reduction of temporomandibular joint dislocation, such as manual reduction, surgical reduction and medical device-assisted reduction, have the following four shortcomings:

[0005] (1) Insufficient force makes it impossible to complete reduction, while greater force can lead to secondary injury. The most commonly used reduction method in clinical practice is manual reduction. However, in clinical work, greater force is often required to successfully reduce the temporomandibular joint dislocation, especially in young people. However, in clinical practice, female doctors often cannot reduce the temporomandibular joint due to their weak strength. Some male doctors have greater strength, and the mandibular position moves downward more, which leads to further aggravation of muscle and ligament damage even after reduction, and prolonged recovery time.

[0006] (2) Unable to perform reduction according to patient needs. Most reduction instruments are only suitable for the treatment of a small number of patients with bilateral anterior dislocation. The target population is small and it is difficult to meet clinical application requirements. Moreover, most reduction instruments cannot sense whether the temporomandibular joint has reached the optimal downward position. If it continues to move downward beyond this position, the reduction will aggravate the damage to the muscles and ligaments. In severe cases, it may even cause habitual dislocation.

[0007] (3) Unable to reposition patients in special positions. Clinically, paralyzed patients, trauma patients, and patients with severe kyphosis often encounter temporomandibular joint dislocation. Patients cannot be repositioned according to conventional operations. Even strong male doctors rarely succeed in repositioning the patients when they lie flat or on their sides. In this case, surgical repositioning is required under general anesthesia. However, surgical repositioning under general anesthesia for such patients is risky and expensive, increasing the patient's pain and burden.

[0008] (4) Failure to fix the mandible in time leads to re-dislocation. After reduction of the temporomandibular joint dislocation, the mandible must be fixed in time to prevent re-dislocation. Clinicians use bandages to fix the mandible after reduction, which requires a certain amount of preparation, is time-consuming, labor-intensive, and uncomfortable.

[0009] In view of this, this invention is proposed. Summary of the Invention

[0010] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an auxiliary system for temporomandibular joint reduction and fixation and a method of use thereof. When reducing temporomandibular joint dislocation, it can be implemented according to the actual situation of the patient. At the same time, the force is controllable, which can meet the reduction needs of patients in special postures. After reduction, the mandible can be fixed in time to prevent dislocation again.

[0011] The purpose of the present invention is to solve the problem through the following technical solutions:

[0012] On the one hand, the present invention provides an auxiliary system for temporomandibular joint reduction and fixation, including an auxiliary pressurizing device, which is arranged between the upper and lower mandibular supports, the upper mandibular support is arranged in the upper molar area, and the lower mandibular support is arranged in the lower molar area. The upper mandibular support is fixed to one end of a connecting rod, and the other end of the connecting rod is fixed around the patient's face to a top cap set on the top of the head. The top cap is detachably connected to a restraint belt wrapped around the head. The auxiliary pressurizing device is connected to one end of the upper mandibular support through a pipeline and is also connected to a pressure display and a pressurizing system.

[0013] Furthermore, the auxiliary pressure device includes: a first universal ball fixed on the maxillary support, a metal tube passing through the first universal ball, one end of the metal tube connected to the pipeline, and the other end connected to the hydraulic device, and the lower end of the hydraulic device is connected to the second universal ball fixed on the mandibular support through a metal rod.

[0014] Furthermore, a first spring and a first hydraulic rod are installed in the hydraulic device, and the lower end of the first hydraulic rod is connected to the metal rod.

[0015] Furthermore, the pressurizing system includes an oil reservoir, a pressurizing device and a valve switch. The two ends of the oil reservoir are respectively connected to the pressurizing device and the valve switch. By pressing the pressurizing device, the hydraulic oil in the oil reservoir flows along the pipeline into the auxiliary pressurizing device. By pressing the valve switch, the hydraulic oil in the auxiliary pressurizing device flows along the pipeline into the oil reservoir.

[0016] Furthermore, the pressurizing device is a foot-operated structure, comprising: a resilient plastic barrel, a second hydraulic rod, a second spring, and a foot-operated plate. The bottom of the resilient plastic barrel is fully open, and a second spring and a second hydraulic rod are arranged in the resilient plastic barrel. The upper end of the second hydraulic rod extends out of the upper end of the resilient plastic barrel and is connected to the foot-operated plate. The two ends of the bottom of the resilient plastic barrel are respectively connected to the oil reservoir and the auxiliary pressurizing device through pipes. A second one-way valve is arranged between the resilient plastic barrel and the oil reservoir, and a first one-way valve is arranged between the resilient plastic barrel and the auxiliary pressurizing device.

[0017] Furthermore, the pressurizing system includes a motor, an oil pump, a control switch and an oil storage tank, the control switch includes a first control switch and a second control switch, one end of the first control switch and the second control switch are both connected to the auxiliary pressurizing device, and the other ends are respectively connected through the first oil pump, the second oil pump and the oil storage tank, the first oil pump is connected to the first motor, and the second oil pump is connected to the second motor. By pressing the first control switch, the first oil pump and the first motor are driven to operate, and the hydraulic oil in the oil storage tank is transported along the pipeline to the auxiliary pressurizing device. By pressing the second control switch, the second oil pump and the second motor are driven to operate, and the hydraulic oil in the auxiliary pressurizing device is transported along the pipeline to the oil storage tank; a third one-way valve is provided on the pipeline connected to the first control switch, and a fourth one-way valve is provided on the pipeline connected to the second control switch.

[0018] Furthermore, the pressure display is of dropper type, with a scale marked on the outside and a marking ball provided on the inside. The scale difference moved by the marking ball corresponds to the distance the first hydraulic rod in the auxiliary pressurizing device moves downward.

[0019] Furthermore, fixed wings are provided on both sides of the top cap, and the restraint belt includes an upper restraint belt and a lower restraint belt. The middle part of the upper restraint belt is connected to the fixed wing by a net bag or connected to the fixed wing by a zipper. There are two fixing straps on both sides of the upper restraint belt. The two fixing straps on the same side extend from the front and back sides of the patient's ear to the mandible respectively. The lower restraint belt wraps the patient's mandible from the chin to the mandible as a whole and extends upward. The upper restraint belt and the lower restraint belt are connected by Velcro.

[0020] Furthermore, the connecting rod is composed of a sliding rod, a slideway and a fixed knob. The sliding rod slides arbitrarily along the length direction of the slideway to adjust the length of the connecting rod. The fixed knob fixedly connects the sliding rod and the slideway.

[0021] On the other hand, the present invention also provides a method for using an auxiliary system for temporomandibular joint reduction and fixation, based on the auxiliary system for temporomandibular joint reduction and fixation, comprising the following steps:

[0022] Step 1: Fix the restraint belt and the top cap to the patient's head in sequence, place the maxillary support and the mandibular support in the patient's mouth, and connect the top cap and the maxillary support with the connecting rod.

[0023] Step 2: Place the auxiliary pressurizing device between the maxillary support and the mandibular support. The metal tube passes through the first universal ball on the maxillary support and is connected to the pipeline. The pipeline is connected to the pressure display and the pressurizing system in turn.

[0024] Step 3: Apply pressure to the pressurizing system. When the pressure reaches the set value, stop pressurizing, remove the auxiliary pressurizing device, and secure the restraint belt again.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The auxiliary force can be controlled to effectively prevent secondary injuries: The auxiliary system of the present invention plays the role of auxiliary force during use, and the auxiliary force can display the moving distance of the auxiliary pressure device according to the pressure display. If the patient is examined by CT or B-ultrasound before reduction, the direction and distance of movement on the left and right sides can be measured, and the reduction can be performed more accurately when using this auxiliary device. If no examination is performed, the doctor needs to feel the position of the temporomandibular joint when using this device for empirical reduction, effectively control the force and can intuitively observe the moving distance, thereby effectively avoiding violent reduction and preventing secondary injuries.

[0027] (2) It can be implemented according to the actual situation of the patient: The auxiliary system of the present invention is obviously different from most reduction instruments through the design of the universal ball. The force direction and angle can be adjusted arbitrarily in the patient's mouth. Therefore, no matter whether it is a complex situation such as bilateral anterior dislocation, unilateral anterior dislocation, bilateral posterior dislocation, or unilateral posterior dislocation, the present invention can apply force from different angles and directions according to the specific situation of the patient to complete the reduction requirement;

[0028] (3) Ability to meet the reduction needs of patients in special body positions: The auxiliary system of the present invention is not affected by body position. Even if the patient is paralyzed and bedridden, the auxiliary system can effectively apply force to reduce the position, thus getting rid of the disadvantage of weak force in manual reduction. At the same time, it reduces the economic burden of some patients who need surgical reduction and avoids surgical risks.

[0029] (4) Timely fixation after reduction to prevent re-dislocation: After the auxiliary system of the present invention completes the reduction, the patient's mandible can be immediately restrained and fixed with a restraint belt, avoiding the tedious steps of searching for materials and instruments for fixation again, and greatly reducing the risk of re-dislocation of the temporomandibular joint.

[0030] In summary, compared with the existing technology, the auxiliary system for temporomandibular joint reduction and fixation provided by the present invention is a professional medical auxiliary device that can be implemented according to the actual situation of the patient, has controllable force, can meet the reduction needs of patients in special postures, and can fix the joint in time after reduction to prevent dislocation again. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the invention.

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 It is a schematic diagram of the connection of the restraint belt in the auxiliary system for temporomandibular joint reduction and fixation of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the upper restraint belt in the auxiliary system for temporomandibular joint reduction and fixation of the present invention;

[0035] Figure 3 A schematic structural diagram of the lower restraint belt in the auxiliary system for temporomandibular joint reduction and fixation according to the present invention;

[0036] Figure 4 It is a structural schematic diagram of the top cap in the auxiliary system for temporomandibular joint reduction and fixation of the present invention;

[0037] Figure 5 It is a structural schematic diagram of the connection between the top cap and the connecting rod in the auxiliary system for temporomandibular joint reduction and fixation of the present invention;

[0038] Figure 6 This is a schematic structural diagram of the auxiliary pressure device installed between the upper and lower mandibular supports in the auxiliary system for temporomandibular joint reduction and fixation of the present invention;

[0039] Figure 7 It is a structural schematic diagram of a pressure display in the auxiliary system for temporomandibular joint reduction and fixation of the present invention;

[0040] Figure 8 This is a structural schematic diagram of a pressurizing system of an auxiliary system for temporomandibular joint reduction and fixation according to a first embodiment of the present invention;

[0041] Figure 9 This is a structural schematic diagram of a pressurizing system of an auxiliary system for temporomandibular joint reduction and fixation according to a second embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the structure of the auxiliary system for temporomandibular joint reduction and fixation according to the first embodiment of the present invention;

[0043] Figure 11 This is a schematic diagram of the use structure of the auxiliary system for temporomandibular joint reduction and fixation according to the second embodiment of the present invention.

[0044] Among them, 1-upper restraint belt; 2-lower restraint belt; 3-top cap; 4-threaded hole; 5-fixed wing; 6-connecting rod; 7-fixing knob; 8-upper jaw support; 9-metal pipe; 10-first universal ball; 11-first spring; 12-first hydraulic rod; 13-lower jaw support; 14-second universal ball; 15-pressure display; 16-scale; 17-marking ball; 18-valve switch; 19-second spring; 20-reboundable plastic barrel; 21-second hydraulic rod; 22-first one-way valve; 23-second one-way valve; 24-oil reservoir; 25-oil storage tank; 26-first motor; 27-second oil pump; 28-first control switch; 29-third one-way valve; 30-second control switch; 31-fourth one-way valve; 32-second motor; 33-second oil pump. DETAILED DESCRIPTION

[0045] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Instead, they are merely examples consistent with certain aspects of the present invention as detailed in the appended claims.

[0046] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0047] According to an embodiment of the present invention, Figure 1-7 As shown, the auxiliary system for temporomandibular joint reduction and fixation provided by the present invention includes a restraint belt, a top cap 3, a connecting rod 6, an auxiliary pressurizing device, a pressure display 15, and a pressurizing system. Figure 1-3 The diagrams of the connection and various structural diagrams of the restraint belt of the present invention are shown. The restraint belt is composed of an upper restraint belt 1 and a lower restraint belt 2. The belt has a certain degree of elasticity and can be adjusted to suit the patient's head circumference. The upper restraint belt 1 and the lower restraint belt 2 have Velcro fastenings for mutual fastening. Furthermore, the middle portion of the upper restraint belt 1 is provided with a net pocket that plugs into the fixed wing 5 or is connected to the fixed wing 5 via a zipper. Two fixing straps are provided on each side of the upper restraint belt 1. The two fixing straps on the same side extend from the front and back of the patient's ears to the mandible. The lower restraint belt 2 completely wraps the patient's chin and extends upward. The upper restraint belt 1 and the lower restraint belt 2 are connected by Velcro.

[0048] According to an embodiment of the present invention, Figure 4As shown in the structural diagram of the top cap of the present invention, the top cap 3 has a certain curvature and there is no discomfort when wearing it. There are fixed wings 5 ​​on it for fixing. The fixed wings 5 ​​have a certain elasticity and can be well installed on the net bag on the same side, and can also be easily disassembled.

[0049] According to an embodiment of the present invention, Figure 5 The figure shows a schematic diagram of the structure of the top cap and the connecting rod of the present invention. The connecting rod 6 is composed of a sliding rod, a slideway, and a fixed knob. The sliding rod slides freely along the length of the slideway to adjust the length of the connecting rod 6. When the connecting rod 6 is adjusted to the appropriate position, the fixed knob 7 is used to fix the sliding rod and the slideway. A threaded hole 4 is provided at the connection between the top cap 3 and the connecting rod 6. The connecting rod 6 and the top cap 3 are connected by screws to ensure the stability of the connection between the two.

[0050] According to an embodiment of the present invention, Figure 6 The figure shows a schematic diagram of the structure of the auxiliary pressure-applying device of the present invention installed between the upper and lower mandibular supports. The auxiliary pressure-applying device is arranged between the upper and lower mandibular supports, the upper mandibular support 8 is arranged in the upper molar area, and the lower mandibular support 13 is arranged in the lower molar area. The auxiliary pressure-applying device includes: a first universal ball 10 fixed to the upper mandibular support 8, a metal tube 9 passing through the first universal ball 10, one end of the metal tube 9 connected to a pipeline, and the other end connected to a hydraulic device, the lower end of the hydraulic device being connected to a second universal ball 14 fixed to the lower mandibular support 13 via a metal rod. The hydraulic device is equipped with a first spring 11 and a first hydraulic rod 12, the lower end of the first hydraulic rod 12 being connected to the metal rod. The end of the auxiliary pressure-applying device connected to the upper mandibular support 8 is also connected to a pressure display 15 and a pressurizing system via a pipeline. Furthermore, the design of the first universal ball 10 ensures that the pressurized liquid is transported into the hydraulic device and can rotate in any direction. Furthermore, the first universal ball 10 is a special universal ball head. The upper end of the ball head is connected to a freely steerable metal tube 9, which is connected to a hydraulic device below. Liquid flows from the pipe through the universal ball head and is injected into the hydraulic device to assist in applying force. This force is then transmitted to the mandibular support 13, allowing the doctor to apply force in different directions. When pressure is stopped, the first spring 11 inside the hydraulic device assists in draining the oil, thus saving effort both when pressing down and when lifting.

[0051] According to an embodiment of the present invention, Figure 7 The diagram below shows the structure of a pressure indicator according to the present invention. The pressure indicator 15 is a dropper-type device with a scale 16 marked on the outside and a marker ball 17 positioned inside. The difference in scale movement of the marker ball 17 corresponds to the downward movement of the first hydraulic rod 12 in the auxiliary pressure device. Because the first hydraulic rod 12 is directly connected to the metal rod on the mandibular support 13, the distance the first hydraulic rod 12 descends corresponds to the distance the mandibular support 13 is depressed.

[0052] According to an embodiment of the present invention, Figure 8-9 As shown, the present invention provides connection structures for two types of pressurization systems: a manually assisted pressurization system and an electrically assisted pressurization system. By continuously pressing a switch, liquid in the oil reservoir 24 or oil tank 25 can be transferred or recovered, thus assisting the pressurization process. The pressurization system can be divided into manually assisted and electrically assisted pressurization to suit different application scenarios.

[0053] in, Figure 8 The diagram shows the structure of a human-assisted pressurizing system. The pressurizing system includes an oil reservoir 24, a pressurizing device, and a valve switch 18. The two ends of the oil reservoir 24 are connected to the pressurizing device and the valve switch 18, respectively. Pressing or stepping on the pressurizing device causes the hydraulic oil in the oil reservoir 24 to flow through a pipe into the auxiliary pressurizing device. Pressing or stepping on the valve switch 18 causes the hydraulic oil in the auxiliary pressurizing device to flow through a pipe into the oil reservoir 24. The pressurizing device is a foot-operated structure, comprising: a resilient plastic barrel 20, a second hydraulic rod 21, a second spring 19, and a foot-operated plate. The bottom of the resilient plastic barrel 20 is fully open, and a second spring 19 and a second hydraulic rod 21 are provided in the resilient plastic barrel 20. The upper end of the second hydraulic rod 21 extends out of the upper end of the resilient plastic barrel 20 and is connected to the foot-operated plate. The two ends of the bottom of the resilient plastic barrel 20 are respectively connected to the oil reservoir 24 and the auxiliary pressurizing device through pipes. A second one-way valve 23 is provided between the resilient plastic barrel 20 and the oil reservoir 24, and a first one-way valve 22 is provided between the resilient plastic barrel 20 and the auxiliary pressurizing device.

[0054] and Figure 9The diagram is a structural diagram of an electrically assisted pressurizing system. The pressurizing system includes a first motor 26, a first oil pump 27, a second motor 32, a second oil pump 33, a control switch, and an oil storage tank 25. The control switch includes a first control switch 28 and a second control switch 30. One end of each of the first control switch 28 and the second control switch 30 is connected to the auxiliary pressurizing device, and the other end is connected to the oil storage tank 25 through the first oil pump 27, respectively. The first oil pump 27 is connected to the first motor 26. By pressing the first control switch 28, the first oil pump 27 and the first motor 26 are driven to operate. The hydraulic oil in the oil tank 25 is transported along a pipeline to the auxiliary pressurizing device. Pressing the second control switch 30 activates the second oil pump 32 and the second motor 33, pumping the hydraulic oil from the auxiliary pressurizing device along the pipeline to the oil tank 25. A third check valve 29 is installed on the pipeline connected to the first control switch 28. This valve opens when the first control switch 28 is pressed. A fourth check valve 31 is installed on the pipeline connected to the second control switch 30. This valve opens when the second switch 30 is pressed. The electric pressurizing system can achieve forward and reverse rotation through the two motors installed. Continuously pressing the switch allows for the transfer or recovery of liquid from the oil tank 25.

[0055] On the other hand, the present invention also provides a method for using an auxiliary system for temporomandibular joint reduction and fixation, based on the auxiliary system for temporomandibular joint reduction and fixation, comprising the following steps:

[0056] Step 1: Fix the restraint belt and top cap 3 to the patient's head in sequence, place the maxillary support 8 and the mandibular support 13 in the patient's mouth, and connect the top cap 3 and the maxillary support 8 with the connecting rod 6. After the auxiliary pressure device is tightly fitted with the maxillary support 8, connect the connecting rod 6 and adjust the length and distance so that the top cap 3 and the auxiliary pressure device are installed stably.

[0057] Step 2: Place the auxiliary pressurizing device between the maxillary support 8 and the mandibular support 13. The metal tube 9 passes through the first universal ball 10 on the maxillary support 8 and is connected to the pipeline. The pipeline is connected to the pressure display 15 and the pressurizing system in turn.

[0058] Step 3: Apply pressure to the pressurizing system. Once the pressure reaches the set value, stop applying pressure, remove the auxiliary pressurizing device, and re-secure the restraint belt. Specifically, allow the oil stored in the pressurizing system to enter the auxiliary pressurizing device, slowly lowering the first hydraulic rod 12 of the auxiliary pressurizing device until the mandibular support 13 is in close contact with the mandible. At this point, record the scale of the marker ball 17, and use the pressurizing device to assist in applying force. Perform the temporomandibular joint reduction technique with both hands to reposition the dislocated temporomandibular joint. During this process, pay close attention to the position of the marker ball 17 to prevent forceful manipulation. After successful repositioning, secure the restraint belt with appropriate force, slowly remove the auxiliary device, and adjust the restraint belt again to complete the reduction and fixation of the temporomandibular joint dislocation.

[0059] The following two embodiments will illustrate how the present invention performs the work of resetting the temporomandibular joint by human power and electric pressure.

[0060] Example 1

[0061] Structure such as Figure 10 As shown, the pressurizing system in this embodiment includes an oil reservoir 24, a pressurizing device and a valve switch 18. The two ends of the oil reservoir 24 are respectively connected to the pressurizing device and the valve switch 18. The pressurizing device is a foot-operated structure, including: a reboundable plastic barrel 20, a second hydraulic rod 21, a second spring 19 and a foot-operated plate. The bottom of the reboundable plastic barrel 20 is fully open, and a second spring 19 and a second hydraulic rod 21 are provided in the reboundable plastic barrel 20. The upper end of the second hydraulic rod 21 extends out of the upper end of the reboundable plastic barrel 20 and is connected to the foot-operated plate. The two ends of the bottom of the reboundable plastic barrel 20 are respectively connected to the oil reservoir 24 and the auxiliary pressurizing device through pipes. A second one-way valve 23 is provided between the reboundable plastic barrel 20 and the oil reservoir 24, and a first one-way valve 22 is provided between the reboundable plastic barrel 20 and the auxiliary pressurizing device.

[0062] When using: First, place the restraint belt in the Figure 1As shown, it is fixed on the patient's face. There is no need to fix it with force at this time. Then insert the fixing wing 5 of the top cap 3 into the belt pocket of the restraint belt or use a zipper to connect and fix the top cap 3. After the auxiliary pressure device is tightly fitted to the maxilla through the maxillary support 8, connect the connecting rod 6 and adjust the length and distance so that the top cap 3 and the auxiliary pressure device are installed stably. Next, by stepping on the foot plate downward, the resilient plastic barrel 20 is compressed downward after being subjected to the downward force, and the hydraulic oil at the bottom of the compression barrel rushes open the first one-way valve 22, so that the oil at the lower end of the resilient plastic barrel 20 enters the auxiliary pressurizing device in one direction, and the foot plate is continuously stepped on. During the stepping process, when the foot plate drives the second hydraulic rod 21 to rise under the action of the second spring 19, the first one-way valve 22 is closed and the second one-way valve 23 is opened. At this time, the oil in the oil reservoir 24 is transported to the lower end of the resilient plastic barrel 20, and when the foot plate moves downward, the second one-way valve 23 is closed and the first one-way valve 22 is opened, that is, in the process of continuously stepping on the foot plate, continuous fluid replenishment is achieved, and a steady stream of oil is transported to the hydraulic device in the auxiliary pressurizing device through the pipeline. After slowly lowering the first hydraulic rod 12 in the hydraulic device so that the mandibular support 13 fits tightly against the mandible, the scale of the marker ball 17 is recorded. When the predetermined scale is reached, the force is stopped and both hands are moved according to the temporomandibular joint reduction technique to reduce the dislocated temporomandibular joint. When the temporomandibular joint is reduced and fixed, the valve switch 18 is pressed downward. The oil in the hydraulic device is discharged along the metal pipe 9 and the pipeline into the oil reservoir 24. The restraint belt is then appropriately tightened and fixed. After slowly removing the auxiliary pressure device, the restraint belt is adjusted again to complete the reduction and fixation of the temporomandibular joint dislocation.

[0063] Example 2

[0064] Structure such as Figure 11 As shown, the pressurizing system in this embodiment includes a first motor 26, a first oil pump 27, a second motor 32, a second oil pump 33, a control switch and an oil storage tank 25, and the control switch includes a first control switch 28 and a second control switch 30. One end of the first control switch 28 and the second control switch 30 are both connected to the auxiliary pressurizing device, and the other ends are respectively connected to the first oil pump 27, the second oil pump 33 and the oil storage tank 25. The first oil pump 27 is connected to the first motor 26, and the second oil pump 33 is connected to the second motor 32.

[0065] First, place the restraint belt in the Figure 1The top cap 3 is fixed to the patient's face as shown, without requiring any force. The top cap 3 is then secured by inserting its fixing wings 5 ​​into the belt pockets of the restraint belt or by zippering. After the auxiliary pressure device is securely attached to the maxillary support 8, the connecting rod 6 is adjusted in length and distance to ensure a stable installation of the top cap 3 and the auxiliary pressure device. Next, the first control switch 28 is pressed downward, opening the third one-way valve 29 and causing the motor 26 to rotate forward. This drives the oil pump 27 to pump hydraulic oil from the oil reservoir 25 into the auxiliary pressure device in a one-way manner, causing the first hydraulic rod 12 of the auxiliary pressure device to slowly move downward, securing the mandibular support 13 against the mandible. The markings on the marker ball 17 are then recorded. Force is applied through the pressure-assisting device, and both hands are moved in accordance with the temporomandibular joint reduction technique to reposition the dislocated temporomandibular joint. During this process, the position of the marker ball 17 is constantly monitored to avoid violent manipulation. When the predetermined mark is reached, the pressure is stopped, i.e., the first control switch 28 is released. After the temporomandibular joint is repositioned and fixed, the foot presses downward on the second control switch 30, which opens the fourth one-way valve 31 and reverses the second motor 32. This drives the second oil pump 33, which returns the hydraulic oil in the auxiliary pressure device to the oil tank 25. Finally, the restraint belt is properly tightened and fixed. After the auxiliary pressure device is slowly removed, the restraint belt is readjusted to complete the reduction and fixation of the temporomandibular joint dislocation.

[0066] In the above embodiments, the present invention provides auxiliary systems for fixation and reduction of the left and right symmetrical portions of the mandible, each with its own auxiliary pressurization device and system. The auxiliary pressurization device and system used by both sides are identical. Any auxiliary system designed for fixation and reduction of only one side falls within the scope of protection of the present invention.

[0067] The present invention provides an auxiliary system for temporomandibular joint reduction and fixation, which can meet the needs of patients with different types of temporomandibular joint dislocation, protect patients with controllable force, meet the reduction needs of patients in special postures, and achieve the purpose of timely fixation after reduction to prevent re-dislocation.

[0068] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0069] It should be understood that the present invention is not limited to the above description and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An auxiliary system for temporomandibular joint reduction and fixation, characterized in that: Including auxiliary The pressure device is arranged between the upper and lower jaw supports, the upper jaw support (8) is arranged in the upper molar area, and the lower jaw support (13) is arranged in the lower molar area. The upper jaw support (8) is fixed to one end of the connecting rod (6), and the other end of the connecting rod (6) is fixed to the top cap (3) arranged on the top of the head by passing around the patient's face. The top cap (3) is detachably connected to the restraint belt wrapped around the head. One end of the auxiliary pressurizing device connected to the maxillary support (8) is also connected to a pressure display (15) and a pressurizing system through a pipeline; the auxiliary pressurizing device comprises: a first universal ball (10) fixed on the maxillary support (8), a metal tube (9) passing through the first universal ball (10), one end of the metal tube (9) is connected to the pipeline, and the other end is connected to a hydraulic device, the lower end of the hydraulic device is connected to a second universal ball (14) fixed on the mandibular support (13) through a metal rod; the pressure display (15) is a dropper type, with a scale (16) marked on the outside and a marking ball (17) arranged inside, and the scale difference moved by the marking ball (17) corresponds to the distance the first hydraulic rod (12) in the auxiliary pressurizing device moves downward.

2. The auxiliary system for temporomandibular joint reduction and fixation according to claim 1, characterized in that: A first spring (11) and a first hydraulic rod (12) are installed in the hydraulic device, and the lower end of the first hydraulic rod (12) is connected to a metal rod.

3. The auxiliary system for temporomandibular joint reduction and fixation according to claim 1, characterized in that: The pressurizing system includes an oil reservoir (24), a pressurizing device, and a valve switch (18). The two ends of the oil reservoir (24) are respectively connected to the pressurizing device and the valve switch (18). By pressing the pressurizing device, the hydraulic oil in the oil reservoir (24) flows along the pipeline into the auxiliary pressurizing device. By pressing the valve switch (18), the hydraulic oil in the auxiliary pressurizing device flows along the pipeline into the oil reservoir (24).

4. The auxiliary system for temporomandibular joint reduction and fixation according to claim 3, characterized in that: The pressurizing device is a foot-operated structure, comprising: a resilient plastic barrel (20), a second hydraulic rod (21), a second spring (19), and a foot-operated plate. The bottom of the resilient plastic barrel (20) is fully open. The second spring (19) and the second hydraulic rod (21) are arranged in the resilient plastic barrel (20). The upper end of the second hydraulic rod (21) extends out of the upper end of the resilient plastic barrel (20) and is connected to the foot-operated plate. The bottom ends of the resilient plastic barrel (20) are connected to the oil reservoir (24) and the auxiliary pressurizing device through pipelines, respectively. A second one-way valve (23) is provided between the resilient plastic barrel (20) and the oil reservoir (24). A first one-way valve (22) is provided between the resilient plastic barrel (20) and the auxiliary pressurizing device.

5. The auxiliary system for temporomandibular joint reduction and fixation according to claim 1, characterized in that: The pressurizing system includes a motor (26), an oil pump (27), a control switch and an oil storage tank (25), wherein the control switch includes a first control switch (28) and a second control switch (30). One end of the first control switch (28) and the second control switch (30) are both connected to the auxiliary pressurizing device, and the other ends are respectively connected through the first oil pump (27), the second oil pump (33) and the oil storage tank (25). The first oil pump (27) is connected to the first motor (26), and the second oil pump (33) is connected to the second motor (32). By pressing the first control switch (28), the first oil pump (27) and the first motor (26) are driven to operate, and the hydraulic oil in the oil storage tank (25) is transported along the pipeline to the auxiliary pressurizing device; by pressing the second control switch (30), the second oil pump (33) and the second motor (32) are driven to operate, and the hydraulic oil in the auxiliary pressurizing device is transported along the pipeline to the oil storage tank (25); A third one-way valve (29) is provided on the pipeline connected to the first control switch (28), and a fourth one-way valve (31) is provided on the pipeline connected to the second control switch (30).

6. The auxiliary system for temporomandibular joint reduction and fixation according to claim 1, characterized in that: Fixed wings (5) are provided on both sides of the top cap (3), and the restraint belt comprises an upper restraint belt (1) and a lower restraint belt (2). The middle part of the upper restraint belt (1) is connected to the fixed wings by providing a net bag or connected to the fixed wings (5) by a zipper. There are two fixing straps on both sides of the upper restraint strap (1), and the two fixing straps on the same side extend from the front and back sides of the patient's ears to the mandible respectively. The lower restraint belt (2) wraps the patient's chin to mandible as a whole and extends upwards. The upper restraint belt (1) and the lower restraint belt (2) are connected via Velcro.

7. The auxiliary system for temporomandibular joint reduction and fixation according to claim 1, characterized in that: The connecting rod (12) is composed of a sliding rod, a slideway and a fixed knob (7). The sliding rod can slide arbitrarily along the length direction of the slideway to adjust the length of the connecting rod (12). The fixed knob (7) fixedly connects the sliding rod and the slideway.

Images