Auxiliary fixing device applied to aber position examination of magnetic resonance shoulder joint radiography

Abstract

The invention discloses an auxiliary fixing device applied to magnetic resonance shoulder joint radiography aber position examination, and relates to the technical field of medical auxiliary instruments. The auxiliary fixing device applied to the magnetic resonance shoulder joint radiography aber position examination comprises a gypsum arm guard and an arm support assembly, the gypsum arm guard is connected with a fixing piece, and a tightness adjusting assembly used for assisting a patient in binding is arranged between the gypsum arm guard and the arm support assembly. A limiting mechanism used for fixing the elbow of the patient is arranged on the side, away from the tightness adjusting assembly, of the gypsum protection arm, the wrist of the patient can be bound through a nylon cable tie, the adjustable connecting assembly and the limiting assembly are matched, and the elbow of the patient is fixed. The arm at the detection end of the patient is limited to act, so that the problems that the action is changed, the limiting effect of most existing auxiliary fixing devices is single, and the detection result is influenced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, in particular to an auxiliary fixing device used for Aber position examination of magnetic resonance shoulder arthrography. Background Art

[0002] The shoulder joint is the most mobile and complex joint in the human body. Injuries to the rotator cuff and labrum are the primary cause of shoulder pain. Compared to X-rays, CT scans, and ultrasound examinations, magnetic resonance imaging (MRI) of the shoulder joint has become a common diagnostic method for shoulder disorders due to its lack of ionizing radiation, higher soft tissue resolution, and multi-directional imaging.

[0003] Currently, most of the existing auxiliary fixation devices used in aber position examination of magnetic resonance shoulder arthrography use the following technologies to achieve their effects: Articulation and angle adjustment technology: The elbow support angle can be flexibly adjusted through universal structures such as sleeves, ball heads and limit screws to adapt to the differences in the patient's upper limb lifting angles; Limiting and fixing technology: Use Velcro to fix the patient's elbow in the accommodation cavity; or use the upper limb limit box and internal grooves with Velcro straps to limit and fix various parts of the upper limb to prevent rotation; Fitting and stabilization technology: A curved soft pad is used, and the thickness of the pad is consistent with that of the coil base on the affected shoulder joint. Cassia seeds are laid on the lower end of the accommodation cavity to allow gravity to make the device fit the examination bed. At the same time, the base is fixed to the ground or examination bed to prevent the device from shaking. Precision Angle Adjustment Technology: Equipped with a protractor or scale mark to accurately measure and adjust the angle; or adopt an electric or pneumatic drive system to accurately control the angle change through a control panel or foot switch; Ergonomic design and comfort technology: The support structure is adjustable to accommodate different patient sizes; the contact surface is made of soft material and equipped with cushioning or shock-absorbing structures to improve patient comfort; Rapid positioning and locking technology: Utilizes magnetic elements to achieve rapid positioning and preliminary fixation; through quick locking mechanisms such as snaps, latches, and bolts, components are quickly locked after adjusting the angle and position to prevent loosening or displacement.

[0004] At present, most of the existing auxiliary fixation devices used for aber-position examination of magnetic resonance shoulder arthrography limit the patient's arm through an armrest and an adjustable strap. Specifically, the armrest is placed on the shoulder armpit of the patient's examination side, and the strap is tied to the patient's arm on the non-examination side to limit the patient's arm. Although this method is convenient and fast, patients often move their arms unconsciously due to pain or discomfort during the examination, resulting in changes in movements and affecting the examination results. Therefore, a single limit is often not easy to fix the patient's arm in all directions, so that most of the existing auxiliary fixation devices have the problem of a single limiting effect, which affects the test results. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary fixation device for use in aber position examination of magnetic resonance shoulder arthrography to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary fixation device for use in aber-position examination of magnetic resonance shoulder arthrography, comprising a plaster arm guard and an arm support assembly, the plaster arm guard being connected to a fixing piece, a tension adjustment assembly for assisting in patient binding being provided between the plaster arm guard and the arm support assembly, a limiting mechanism for securing the patient's elbow being provided on a side of the plaster arm guard away from the tension adjustment assembly, and a fine-tuning assembly for fine-tuning the tightness between the arm support assembly and the patient's shoulder joint being connected to the arm support assembly; The limiting mechanism includes a limiting component fixedly connected to the plaster arm guard, an end of the limiting component away from the plaster arm guard is fixedly connected to an adjustable connecting component, and an end of the adjustable connecting component away from the limiting component is fixedly connected to an auxiliary fixing component; The limiting assembly includes an L-shaped rod, and a limiting piece is provided on the top surface of the L-shaped rod.

[0007] Preferably, the fixing part includes a fixing belt fixedly connected to the plaster arm guard, and the end of the fixing belt away from the plaster arm guard is fixedly connected to a Velcro thorn surface, and the Velcro thorn surface is adapted to be equipped with a Velcro fur surface, and the Velcro fur surface is fixedly arranged on the side of the plaster arm guard away from the tightness adjustment component.

[0008] Preferably, the tension adjustment component includes a nylon strap, and the end of the nylon strap close to the plaster arm guard is adapted to be equipped with a Japanese-shaped adjustment buckle, and both ends of the nylon strap close to the arm support component are provided with hanging holes.

[0009] Preferably, the arm support assembly includes a nylon cloth support, and two hooks are fixedly connected to the upper and lower ends of the nylon cloth support. A latex pad is fixedly connected to the side of the nylon cloth support close to the tension adjustment assembly, and the four hooks are respectively hung with the four hanging holes of the two tension adjustment assemblies.

[0010] Preferably, a limiting socket is provided on the top surface of the L-shaped rod, and the limiting part includes a ceramic telescopic block, the output end of the ceramic telescopic block is fixedly connected to a rack, the rack is adapted to be equipped with a gear ring, the top surface of the output end of the ceramic telescopic block is fixedly connected to a shift rod, and a through hole is provided at the output end of the ceramic telescopic block, and an L-shaped pin is inserted into both the through hole and the limiting socket.

[0011] Preferably, the adjustable connecting assembly includes a first connecting seat, which is rotatably connected to the end of the L-shaped rod away from the plaster guard arm through a ceramic rotating shaft, and the top of the first connecting seat is fixedly connected to the gear ring.

[0012] Preferably, the end of the first connecting seat away from the L-shaped rod is fixedly connected to a threaded sleeve rod, the end of the threaded sleeve rod away from the first connecting seat is threadedly connected to a threaded adjustment rod, the end of the threaded adjustment rod away from the threaded sleeve rod is fixedly connected to a parallel bearing, and the end of the parallel bearing away from the threaded adjustment rod is fixedly connected to the second connecting seat.

[0013] Preferably, the auxiliary fixing assembly includes a fixed block rotatably connected to the second connecting seat via a ceramic rotating shaft, the fixed block is fixedly connected to a nylon tie, the top surface of the nylon tie is fixedly connected to an adjustment buckle, and the end of the nylon tie away from the fixed block is adapted to the adjustment buckle.

[0014] Preferably, the fine-tuning component includes an airbag and an inflation component. The airbag is wrapped on the inner side of the nylon cloth support. The airbag is fixedly connected to a ceramic interface. The ceramic interface passes through the nylon cloth support and faces the side of the nylon cloth support away from the tension adjustment component.

[0015] Preferably, the inflation assembly includes an air guide tube, wherein a ceramic joint is provided at one end of the air guide tube close to the nylon support, wherein the ceramic joint is threadedly connected to the ceramic interface, an inflation balloon is fixedly connected at one end of the air guide tube away from the ceramic joint, a one-way valve is fixedly connected at one end of the inflation balloon away from the air guide tube, and a regulating mechanism for regulating and controlling the pressure in the balloon is provided on the side wall of the air guide tube; The adjustment mechanism includes an exhaust pipe fixedly inserted into the side wall of the air guide pipe, and a tapered tube fixedly inserted into the exhaust pipe. A hollow disk is connected to the exhaust pipe via a lifting assembly. A sealing ball is connected to the bottom of the hollow disk via a spring, and the sealing ball abuts against the inner wall of the tapered tube. The lifting assembly includes a first connecting block and a second connecting block fixedly connected to the inner side wall of the exhaust pipe, and the bottom of the first connecting block is fixedly connected to a guide rod, the side wall of the guide rod is sleeved with a sleeve, and the lower end of the sleeve is fixed to the top of the hollow disk, the bottom of the second connecting block is rotatably connected to a threaded rod, and the side wall of the threaded rod is threadedly connected to a threaded tube, the lower end of the threaded tube is fixed to the top of the hollow disk, and the upper end of the threaded rod is fixedly connected to a rocker, and the inner side wall of the sleeve is provided with a scale mark.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This auxiliary fixation device used for aber position examination of magnetic resonance shoulder arthrography, by setting a limiting mechanism, can tie the patient's wrist with a nylon tie, and fix the patient's elbow in conjunction with an adjustable connecting component and a limiting component. Compared with the existing auxiliary fixation device, the present application adds a limit on the wrist, so that the patient's arm at the detection end is restricted in movement, avoiding movement changes. Most of the existing auxiliary fixation devices have the problem of a single limiting effect, which affects the detection results. At the same time, the adjustable connecting component can be extended and retracted to adapt to the arms of different patients, and can also be used to adjust the angle in conjunction with the limiting component. The adjustable tightness adjustment component is combined with the adjustable arm support component, so that the present application can be adapted to different patients, making the present application highly applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the partial explosion structure of the present invention; Figure 3 It is a schematic structural diagram of the plaster arm guard and the limiting mechanism of the present invention; Figure 4 This is a schematic diagram of a half-section structure of the arm support assembly of the present invention; Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 6 This is a schematic structural diagram of the tension adjustment assembly of the present invention; Figure 7 It is a schematic structural diagram of the limit assembly of the present invention; Figure 8 It is a schematic structural diagram of the adjustable connecting assembly and the auxiliary fixing assembly of the present invention; Figure 9 It is a schematic diagram of the partial cross-sectional structure of the exhaust pipe in the invention.

[0018] In the figure: 1. Plaster arm guard; 2. Limiting assembly; 3. Elasticity adjustment assembly; 4. Arm support assembly; 5. Fine-tuning assembly; 6. Fixing strap; 7. Adjustable connection assembly; 8. Auxiliary fixing assembly; 101. Velcro surface; 201. L-shaped rod; 202. Limiting socket; 203. Ceramic telescopic block; 204. Rack; 205. Push rod; 206. Through hole; 207. L-shaped pin; 208. Gear ring; 301. Nylon strap; 302. Japanese-shaped adjustment buckle; 303. Hanging hole; 401. Nylon cloth support; 402. Hook; 403. Latex pad; 501. Airway; 503. Inflatable balloon; 504. One-way Valve; 505, ceramic joint; 506, ceramic interface; 507, airbag; 601, Velcro thorn surface; 701, first connecting seat; 702, threaded sleeve; 703, threaded adjustment rod; 704, parallel bearing; 705, second connecting seat; 801, fixing block; 802, nylon tie; 803, adjustment buckle; 901, exhaust pipe; 902, hollow disk; 903, spring; 904, tapered tube; 905, sealing ball; 906, first connecting block; 907, second connecting block; 908, guide rod; 909, sleeve; 910, threaded tube; 911, threaded rod; 912, rocker; 913, scale mark. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-9 The present invention provides a technical solution for an auxiliary fixation device for aber position examination of magnetic resonance shoulder arthrography: the auxiliary fixation device for aber position examination of magnetic resonance shoulder arthrography includes a plaster arm guard 1 and an arm support assembly 4, the plaster arm guard 1 is connected with a fixing part, a tightness adjustment assembly 3 for assisting in binding the patient is arranged between the plaster arm guard 1 and the arm support assembly 4, a limiting mechanism for fixing the patient's elbow is arranged on the side of the plaster arm guard 1 away from the tightness adjustment assembly 3, and the arm support assembly 4 is connected with a fine-tuning assembly 5 for fine-tuning the tightness between the arm support assembly 4 and the patient's shoulder joint.

[0021] The limiting mechanism includes a limiting component 2 fixedly connected to the plaster arm guard 1, the end of the limiting component 2 away from the plaster arm guard 1 is fixedly connected to an adjustable connecting component 7, and the end of the adjustable connecting component 7 away from the limiting component 2 is fixedly connected to an auxiliary fixing component 8.

[0022] The limiting assembly 2 includes an L-shaped rod 201 , and a limiting member is provided on the top surface of the L-shaped rod 201 .

[0023] See also Figure 1 The fixing part includes a fixing strap 6 fixedly connected to the plaster arm guard 1, and the end of the fixing strap 6 away from the plaster arm guard 1 is fixedly connected to a Velcro thorn surface 601, and the Velcro thorn surface 601 is adapted to be equipped with a Velcro fleece surface 101. The Velcro fleece surface 101 is fixedly arranged on the side of the plaster arm guard 1 away from the tightness adjustment component 3. The fixing strap 6 can fix the plaster arm guard 1 on the patient's arm by sticking the Velcro fleece surface 101 through the Velcro thorn surface 601.

[0024] See also Figure 6 The tightness adjustment component 3 includes a nylon strap 301. The end of the nylon strap 301 close to the plaster arm guard 1 is adapted with a Japanese-shaped adjustment buckle 302. Both ends of the nylon strap 301 close to the arm support component 4 are provided with hanging holes 303. The nylon strap 301 can be adjusted in length through the Japanese-shaped adjustment buckle 302 to fix the arm support component 4 and the plaster arm guard 1 on the patient's arm.

[0025] See also Figure 4 The arm support assembly 4 includes a nylon cloth support 401, and two hooks 402 are fixedly connected to the upper and lower ends of the nylon cloth support 401. A latex pad 403 is fixedly connected to the side of the nylon cloth support 401 close to the tension adjustment assembly 3. The four hooks 402 are respectively hung with the four hanging holes 303 of the two tension adjustment components 3. The nylon cloth support 401 is placed under the patient's armpit together with the latex pad 403 to lift the patient's arm.

[0026] See also Figure 7 A limiting socket 202 is provided on the top surface of the L-shaped rod 201, and the limiting part includes a ceramic telescopic block 203. The output end of the ceramic telescopic block 203 is fixedly connected to a rack 204, and the rack 204 is adapted to be equipped with a gear ring 208. The top surface of the output end of the ceramic telescopic block 203 is fixedly connected to a lever 205. A through hole 206 is provided at the output end of the ceramic telescopic block 203. An L-shaped pin 207 is inserted into the through hole 206 and the limiting socket 202. The ceramic telescopic block 203 can be telescoped, and the rack 204 is used to fix the gear ring 208 for limiting. The L-shaped rod 201 cooperates with the through hole 206 and the limiting socket 202 to fix the output end of the ceramic telescopic block 203.

[0027] See also Figure 7 and Figure 8 The adjustable connecting component 7 includes a first connecting seat 701, which is rotatably connected to the end of the L-shaped rod 201 away from the plaster guard arm 1 through a ceramic rotating shaft. The top of the first connecting seat 701 is fixedly connected to the gear ring 208. The first connecting seat 701 can rotate based on the L-shaped rod 201 to drive the rear component to adjust the angle.

[0028] See also Figure 8 The end of the first connecting seat 701 away from the L-shaped rod 201 is fixedly connected to the threaded sleeve rod 702, the end of the threaded sleeve rod 702 away from the first connecting seat 701 is threadedly connected to the threaded adjustment rod 703, the end of the threaded adjustment rod 703 away from the threaded sleeve rod 702 is fixedly connected to the parallel bearing 704, the end of the parallel bearing 704 away from the threaded adjustment rod 703 is fixedly connected to the second connecting seat 705, the parallel bearing 704 can change the direction of the rear auxiliary fixing component 8, which is convenient for adapting to the fixation of arms in different orientations.

[0029] See also Figure 8 The auxiliary fixing assembly 8 includes a fixing block 801 rotatably connected to the second connecting seat 705 via a ceramic shaft. The fixing block 801 is fixedly connected to a nylon tie 802. The top surface of the nylon tie 802 is fixedly connected to an adjusting buckle 803. The end of the nylon tie 802 away from the fixing block 801 is adapted to the adjusting buckle 803. The nylon tie 802 is tied to the patient's wrist. See also Figure 4 The fine-tuning component 5 includes an airbag 507 and an inflation component. The airbag 507 is wrapped on the inner side of the nylon cloth support 401. The airbag 507 is fixedly connected to a ceramic interface 506. The ceramic interface 506 passes through the nylon cloth support 401 and faces the side of the nylon cloth support 401 away from the tension adjustment component 3.

[0030] See also Figure 2 、 Figure 4 and Figure 9 The inflation component includes an air guide tube 501. A ceramic joint 505 is provided at one end of the air guide tube 501 close to the nylon cloth support 401. The ceramic joint 505 is threadedly connected to the ceramic interface 506. An inflation balloon 503 is fixedly connected to one end of the air guide tube 501 away from the ceramic joint 505. A one-way valve 504 is fixedly connected to one end of the inflation balloon 503 away from the air guide tube 501. The side wall of the air guide tube 501 is provided with an adjustment mechanism for adjusting and controlling the pressure in the balloon 507.

[0031] The adjustment mechanism includes an exhaust pipe 901 fixedly inserted into the side wall of the air guide pipe 501, and a conical tube 904 fixedly inserted in the exhaust pipe 901. A hollow disk 902 is connected to the exhaust pipe 901 through a lifting component. The bottom of the hollow disk 902 is connected to a sealing ball 905 through a spring 903, and the sealing ball 905 is against the inner wall of the conical tube 904.

[0032] The lifting assembly includes a first connecting block 906 and a second connecting block 907 fixedly connected to the inner wall of the exhaust pipe 901, and the bottom of the first connecting block 906 is fixedly connected to a guide rod 908, the side wall of the guide rod 908 is sleeved with a sleeve 909, and the lower end of the sleeve 909 is fixed to the top of the hollow disk 902, the bottom of the second connecting block 907 is rotatably connected to a threaded rod 911, and the side wall of the threaded rod 911 is threadedly connected to a threaded tube 910, the lower end of the threaded tube 910 is fixed to the top of the hollow disk 902, and the upper end of the threaded rod 911 is fixedly connected to a rocker 912, and the inner wall of the sleeve 909 is provided with a scale mark 913. The inflatable balloon 503 cooperates with the one-way valve 504 to inflate the airbag 507. As the pressure in the airbag 507 gradually increases, when the set pressure is reached, it continues to During inflation, the sealing ball 905 can be pushed upward by the action of air pressure, and at the same time, the scale mark 913 is compressed. At this time, the sealing ball 905 is separated from the conical tube 904, and the gas can be discharged through the exhaust pipe 901 and the hollow disk 902. When the exhaust sound is heard, stop pressing the inflatable balloon 503, so as to facilitate the control of the pressure in the balloon 507 and make the patient more comfortable. In addition, by turning the rocker 912, the rotation of the rocker 912 drives the rotation of the threaded rod 911, which can drive the hollow disk 902 to rise and fall, and observe the scale mark 913 to adjust and control the compression amount of the scale mark 913, thereby adjusting and controlling the squeezing force of the sealing ball 905 on the conical tube 904, and then adjusting and controlling the maximum pressure of the balloon 507, which has stronger adaptability and better practical effect.

[0033] Working principle: When in use, first fix the plaster arm guard 1 to the patient's untested arm through the fixing belt 6 with the Velcro thorn surface 601 and the Velcro fleece surface 101. When the patient is in the aber position, fit the latex pad 403 of the arm support assembly 4 to the patient's armpit. Then adjust the tightness of the nylon strap 301 between the plaster arm guard 1 and the arm support assembly 4 through the S-shaped adjustment buckle 302 to achieve basic fixation.

[0034] When the plaster arm guard 1 and the arm support assembly 4 are fixed, the arm support assembly 4 can only support the patient's shoulder and armpit. The L-shaped pin 207 can be separated from the limit socket 202 and the through hole 206, and the lever 205 can be toggled to retract the output end of the ceramic telescopic block 203, so that the rack 204 is separated from the gear ring 208. At this time, the adjustable connecting assembly 7 can be rotated based on the L-shaped rod 201, so that the adjustable connecting assembly 7 drives the auxiliary fixing assembly 8 to change the angle. Then, the patient's wrist is tied with a nylon tie 802, and the nylon tie 802 is adjusted by adjusting the buckle 803. Tightness. After the auxiliary fixing component 8 is fixed to the patient's arm, the angle of the adjustable connecting component 7 based on the limiting component 2 is fine-tuned according to the patient's posture, so that the patient is in the standard aber position. Finally, the output end of the ceramic telescopic block 203 is reset, the rack 204 is re-engaged with the gear ring 208, and the L-shaped pin 207 is reinserted into the limiting socket 202 and the through hole 206 to limit the angle of the adjustable connecting component 7. At this time, the patient's shoulder and armpit are supported by the arm support component 4, and the wrist is restricted by the auxiliary fixing component 8, realizing all-round auxiliary fixation.

[0035] During the fixation of the arm support assembly 4, it is difficult to adjust the tightness to a comfortable position for the patient only by adjusting the tightness by the tension adjustment assembly 3. The inflatable balloon 503 can be used to inflate the balloon 507 through the airway 501 and the ceramic interface 506, so that the balloon 507 expands and lifts the nylon cloth support 401. The expanded nylon cloth support 401 can squeeze the patient's armpit and fill the gap between the arm support assembly 4 and the patient. As the pressure in the balloon 507 gradually increases, when the set pressure is reached, the inflation continues. Under the action of the air pressure, the sealing ball 905 can be pushed upward. At the same time, the scale mark 913 is compressed. At this time, the sealing ball 905 is pressed against the armpit. When separated from the conical tube 904, the gas can be discharged through the exhaust pipe 901 and the hollow disk 902. When the exhaust sound is heard, stop pressing the inflated balloon 503, so as to facilitate the control of the pressure in the balloon 507 and make the patient more comfortable. In addition, by turning the rocker 912, the rotation of the rocker 912 drives the rotation of the threaded rod 911, which can drive the hollow disk 902 to rise and fall, and observe the scale mark 913 to adjust and control the compression amount of the scale mark 913, thereby adjusting and controlling the squeezing force of the sealing ball 905 on the conical tube 904, and then adjusting and controlling the maximum pressure of the balloon 507, which has stronger adaptability and better practical effect.

[0036] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0037] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. An auxiliary fixation device for aber position examination of magnetic resonance shoulder arthrography, characterized by: The invention comprises a plaster arm guard (1) and an arm support assembly (4), wherein the plaster arm guard (1) is connected to a fixing member, a tightness adjustment assembly (3) for assisting in binding a patient is provided between the plaster arm guard (1) and the arm support assembly (4), a limiting mechanism for fixing the patient's elbow is provided on a side of the plaster arm guard (1) away from the tightness adjustment assembly (3), and the arm support assembly (4) is connected to a fine-tuning assembly (5) for fine-tuning the tightness between the arm support assembly (4) and the patient's shoulder joint; The limiting mechanism comprises a limiting assembly (2) fixedly connected to the plaster arm guard (1), an end of the limiting assembly (2) away from the plaster arm guard (1) is fixedly connected to an adjustable connecting assembly (7), and an end of the adjustable connecting assembly (7) away from the limiting assembly (2) is fixedly connected to an auxiliary fixing assembly (8); The limiting assembly (2) comprises an L-shaped rod (201), and a limiting member is provided on the top surface of the L-shaped rod (201).

2. The auxiliary fixation device for aber position examination of magnetic resonance shoulder arthrography according to claim 1, characterized in that: The fixing member comprises a fixing belt (6) fixedly connected to the plaster arm guard (1); one end of the fixing belt (6) away from the plaster arm guard (1) is fixedly connected to a Velcro thorn surface (601); the Velcro thorn surface (601) is adapted to be equipped with a Velcro fleece surface (101); and the Velcro fleece surface (101) is fixedly arranged on a side of the plaster arm guard (1) away from the tension adjustment component (3).

3. The auxiliary fixation device for magnetic resonance shoulder arthrography (MRSA) in the aber position according to claim 1, characterized in that: The tension adjustment component (3) comprises a nylon strap (301), one end of the nylon strap (301) close to the plaster arm guard (1) is adapted with a Japanese-shaped adjustment buckle (302), and both ends of the nylon strap (301) close to the arm support component (4) are provided with hanging holes (303).

4. The auxiliary fixation device for magnetic resonance shoulder arthrography (ABER) examination according to claim 1, characterized in that: The arm support assembly (4) comprises a nylon support (401), wherein the upper and lower ends of the nylon support (401) are fixedly connected to two hooks (402), and a latex pad (403) is fixedly connected to one side of the nylon support (401) close to the tension adjustment assembly (3), and the four hooks (402) are respectively connected to the four hanging holes (303) of the two tension adjustment assemblies (3).

5. The auxiliary fixation device for aber position examination of magnetic resonance shoulder arthrography according to claim 1, characterized in that: The top surface of the L-shaped rod (201) is provided with a limiting socket (202), the limiting member comprises a ceramic telescopic block (203), the output end of the ceramic telescopic block (203) is fixedly connected to a rack (204), the rack (204) is adapted to be equipped with a gear ring (208), the top surface of the output end of the ceramic telescopic block (203) is fixedly connected to a shifting rod (205), the output end of the ceramic telescopic block (203) is provided with a through hole (206), and an L-shaped pin (207) is inserted into both the through hole (206) and the limiting socket (202).

6. The auxiliary fixation device for aberration examination of magnetic resonance shoulder arthrography according to claim 5, characterized in that: The adjustable connection assembly (7) comprises a first connection seat (701), the first connection seat (701) being rotationally connected to an end of the L-shaped rod (201) away from the plaster arm guard (1) via a ceramic shaft, and the top of the first connection seat (701) being fixedly connected to the gear ring (208).

7. The auxiliary fixation device for magnetic resonance shoulder arthrography (Aber position) examination according to claim 6, characterized in that: One end of the first connecting seat (701) away from the L-shaped rod (201) is fixedly connected to a threaded sleeve rod (702), one end of the threaded sleeve rod (702) away from the first connecting seat (701) is threadedly connected to a threaded adjustment rod (703), one end of the threaded adjustment rod (703) away from the threaded sleeve rod (702) is fixedly connected to a parallel bearing (704), and one end of the parallel bearing (704) away from the threaded adjustment rod (703) is fixedly connected to a second connecting seat (705).

8. The auxiliary fixation device for aberration examination of magnetic resonance shoulder arthrography according to claim 1, characterized in that: The auxiliary fixing assembly (8) comprises a fixing block (801) rotatably connected to the second connecting seat (705) via a ceramic rotating shaft, the fixing block (801) is fixedly connected to a nylon cable tie (802), the top surface of the nylon cable tie (802) is fixedly connected to an adjusting buckle (803), and one end of the nylon cable tie (802) away from the fixing block (801) is adapted to the adjusting buckle (803).

9. The auxiliary fixation device for magnetic resonance shoulder arthrography (Aber position) examination according to claim 1, characterized in that: The fine-tuning component (5) comprises an airbag (507) and an inflation component, wherein the airbag (507) is wrapped around the inner side of the nylon cloth support (401), and the airbag (507) is fixedly connected to a ceramic interface (506), and the ceramic interface (506) passes through the nylon cloth support (401) and faces the side of the nylon cloth support (401) away from the tension adjustment component (3).

10. The auxiliary fixation device for aber position examination of magnetic resonance shoulder arthrography according to claim 9, characterized in that: The inflation assembly includes an air guide tube (501), wherein a ceramic joint (505) is provided at one end of the air guide tube (501) close to the nylon buttress (401), wherein the ceramic joint (505) is threadedly connected to a ceramic interface (506), wherein an end of the air guide tube (501) away from the ceramic joint (505) is fixedly connected to an inflation balloon (503), wherein an end of the inflation balloon (503) away from the air guide tube (501) is fixedly connected to a one-way valve (504), and a side wall of the air guide tube (501) is provided with a regulating mechanism for regulating and controlling the pressure in the balloon (507); The regulating mechanism comprises an exhaust pipe (901) fixedly inserted into the side wall of the air guide pipe (501), and a tapered tube (904) fixedly inserted into the exhaust pipe (901); a hollow disk (902) is connected to the exhaust pipe (901) via a lifting assembly; a sealing ball (905) is connected to the bottom of the hollow disk (902) via a spring (903), and the sealing ball (905) abuts against the inner wall of the tapered tube (904); The lifting assembly comprises a first connecting block (906) and a second connecting block (907) fixedly connected to the inner wall of the exhaust pipe (901), and the bottom of the first connecting block (906) is fixedly connected to a guide rod (908), the side wall of the guide rod (908) is sleeved with a sleeve (909), and the lower end of the sleeve (909) is fixed to the top of the hollow disk (902), the bottom of the second connecting block (907) is rotatably connected to a threaded rod (911), and the side wall of the threaded rod (911) is threadedly connected to a threaded tube (910), the lower end of the threaded tube (910) is fixed to the top of the hollow disk (902), and the upper end of the threaded rod (911) is fixedly connected to a rocker (912), and the inner wall of the sleeve (909) is provided with a scale mark (913).

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