A universal adjustable arm fixing device

Abstract

This utility model discloses a universal adjustable arm fixation device, comprising: a fixation mechanism, a first support plate and a second support plate, and a first connecting mechanism installed between the first support plate and the second support plate; the fixation mechanism is installed on the first support plate and / or the second support plate, so that the universal adjustable arm fixation device remains relatively stationary with respect to the patient; the first connecting mechanism includes: an adjusting rod, a first ball head adjustment assembly, and a first locking assembly; one end of the adjusting rod is rotatably and slidably connected to the first support plate, and the other end of the adjusting rod is rotatably connected to the first ball head adjustment assembly. The device allows adjustment of the distance, angle, and height between the first support plate and the second support plate, thereby enabling the angle between the first support plate and the second support plate to match the angle of the patient's elbow joint, effectively preventing intraoperative compressive nerve injury, improving patient comfort, and reducing the incidence of surgical complications.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a universal adjustable arm fixation device. Background Technology

[0002] Osteogenesis imperfecta is a hereditary bone disease in which patients have fragile bones that are prone to fractures and often accompanied by skeletal deformities. During surgery, the patient's arm usually needs to be held in a special position for an extended period of time so that the surgeon can perform the operation.

[0003] For these types of patients, special attention is required during surgery. The hand supports used in surgery usually only provide limited shoulder joint adjustment angles and linear support, which cannot meet the special surgical positioning needs of patients with arm deformities, nor can they provide stable support. The patient's arm is in a suspended state between itself and the hand support for a long time, which can cause postoperative arm discomfort and even nerve and functional damage, affecting the patient's postoperative arm comfort and physiological function. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a universal adjustable arm fixing device.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A universal adjustable arm fixation device is constructed, comprising: a fixation mechanism, a first support plate and a second support plate, and a first connecting mechanism installed between the first support plate and the second support plate; the fixation mechanism is installed on the first support plate and / or the second support plate, so that the universal adjustable arm fixation device remains relatively stationary with respect to the patient; the first connecting mechanism comprises: an adjusting rod, a first ball head adjustment assembly, and a first locking assembly; one end of the adjusting rod is rotatably and slidably connected to the first support plate, and the other end of the adjusting rod is rotatably connected to the first ball head adjustment assembly; the end of the first ball head adjustment assembly away from the adjusting rod is rotatably and slidably connected to the second support plate; a plurality of first locking assemblies are respectively installed between the first ball head adjustment assembly and the second support plate, between the first ball head adjustment assembly and the adjusting rod, and between the adjusting rod and the first support plate, to mutually lock the adjusting rod, the first ball head adjustment assembly, and the first locking assembly.

[0006] Furthermore, the first ball head adjustment assembly includes: a ball shaft, a first adjustment seat, a second adjustment seat, and a second locking assembly; the two ends of the ball shaft are provided with a first ball head and a second ball head; the first ball head is movably connected to the first adjustment seat, and the second ball head is movably connected to the second adjustment seat; the first adjustment seat is rotatably and slidably connected to the second support plate, and the second adjustment seat is rotatably connected to the adjusting linkage; a plurality of second locking assemblies are respectively installed on the first adjustment seat and the second adjustment seat, respectively restricting the movement of the first ball head and the second ball head in the first adjustment seat and the second adjustment seat.

[0007] Furthermore, the adjusting linkage includes: a plurality of connecting members, a third locking assembly, and an adjusting seat; adjacent connecting members are rotatably connected to each other, wherein the first connecting member is rotatably connected to the second adjusting seat, and the last connecting member is rotatably connected to the adjusting seat; the adjusting seat is rotatably and slidably connected to the first support plate; a plurality of third locking assemblies are correspondingly installed at the connection points of adjacent connecting members to restrict rotation between adjacent connecting members; the third locking assembly is also installed between the last connecting member and the adjusting seat to restrict rotation between the last connecting member and the adjusting seat.

[0008] Furthermore, the adjusting seat includes: a fixed seat, a rotating seat, and a fourth locking assembly; the fixed seat is slidably and rotatably connected to the first support plate, the rotating seat is rotatably connected to the fixed seat, and the fourth locking assembly is installed on the fixed seat to restrict the rotation between the fixed seat and the rotating seat; the fixed seat is provided with a scale, and a pointer is fixedly provided on the fixed seat to indicate the rotation angle between the fixed seat and the rotating seat in conjunction with the scale.

[0009] Furthermore, the fixing mechanism includes: a second ball-head adjusting assembly, a clamping and fixing mechanism, and a fifth locking assembly; one end of the second ball-head adjusting assembly is rotatably and slidably connected to the first support plate, and the other end of the second ball-head adjusting assembly is rotatably connected to the clamping and fixing mechanism; the second ball-head adjusting assembly has the same structure as the first ball-head adjusting assembly; the fifth locking assembly is installed at both ends of the second ball-head adjusting assembly to lock the second ball-head adjusting assembly, the first support plate, and the clamping and fixing mechanism.

[0010] Furthermore, the clamping and fixing mechanism includes: a support frame, a clamping block, a telescopic assembly, a sixth locking assembly, and a screw; the clamping block is slidably connected to the support frame, forming a clamping groove between the clamping block and the support frame; the screw is rotatably connected to the clamping block, and the screw is connected to the support frame via a threaded pair to change the size of the clamping groove; the telescopic assembly slides axially and rotates on the support frame, and the second ball-head adjusting assembly is rotatably connected to the telescopic assembly; the sixth locking assembly is mounted on the support frame to restrict the sliding and rotation of the telescopic assembly on the support frame.

[0011] Furthermore, the telescopic assembly includes: a telescopic rod, a rotating seat, and a seventh locking assembly; the telescopic rod is axially slidable and rotatably connected to the support frame; the rotating seat is rotatably connected to the end of the telescopic rod and rotatably connected to the second ball head adjustment assembly; the seventh locking assembly is installed on the rotating seat to lock the rotating seat and the telescopic rod.

[0012] Furthermore, the universal adjustable arm fixing device also includes: a second connecting mechanism and a third support plate, wherein the third support plate is mounted on the second support plate through the second connecting mechanism; the second connecting mechanism has the same structure as the first connecting mechanism.

[0013] Furthermore, the universal adjustable arm fixing device also includes arm fixing components respectively installed on the first tray, the second tray and the third tray.

[0014] Furthermore, the arm fixing component is a strap, Velcro, or buckle belt.

[0015] The following are the beneficial effects of implementing this utility model:

[0016] This application utilizes an adjusting rod, one end of which rotates and slides onto a first support plate, and a first ball-head adjusting assembly, the end of which rotates and slides onto a second support plate. This allows for adjustment of the distance, angle, and height between the first and second support plates, thereby matching the angle between them to the patient's elbow joint angle, providing better support for the patient's arm and increasing intraoperative comfort. It is suitable for surgical patients with arm deformities or those requiring various special arm positions. Adjustment is more effortless and convenient, providing support for the patient's arm, keeping muscles relaxed, preventing muscle fatigue caused by improper arm placement, providing a better surgical environment and comfort, effectively preventing intraoperative nerve compression injury, improving surgical efficiency and success rate, and reducing the incidence of postoperative complications. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] In the attached image:

[0019] Figure 1 This is a schematic diagram of the structure of the universal adjustable arm fixing device in some embodiments of this utility model;

[0020] Figure 2 This is a schematic diagram showing the installation position of the adjusting linkage and the first ball head adjusting assembly of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the adjusting linkage and the first ball head adjusting assembly of this utility model;

[0022] Figure 4 This is a structural schematic diagram of the connector and rotating seat of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the ball shaft and the second adjusting seat of this utility model;

[0024] Figure 6 This is a schematic diagram of the clamping and fixing mechanism of this utility model;

[0025] Figure 7 This is a structural schematic diagram of the telescopic rod and rotating seat of this utility model.

[0026] Explanation of markings in the diagram

[0027] Fixed mechanism 1, second ball head adjustment assembly 11, clamping and fixing mechanism 12, support frame 121, clamping block 122, telescopic assembly 123, telescopic rod 1231, rotating seat 1232, seventh locking assembly 1233, sixth locking assembly 124, screw 125, clamping groove 126, fifth locking assembly 13, first support plate 2, second support plate 3, first connecting mechanism 4, adjusting link 41, connecting piece 411, third locking assembly 412, adjusting seat 413, fixed seat 4131, rotating seat 4132, fourth locking assembly 4133, first ball head adjustment assembly 42, ball shaft 421, first adjusting seat 422, second adjusting seat 423, second locking assembly 424, first ball head 425, second ball head 426, first locking assembly 43, second connecting mechanism 5, third support plate 6, arm fixing assembly 7. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0029] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0030] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0031] Please see Figures 1 to 4The universal adjustable arm fixation device in the first embodiment of this utility model includes: a fixation mechanism 1, a first support plate 2 and a second support plate 3, and a first connecting mechanism 4 installed between the first support plate 2 and the second support plate 3. The fixation mechanism 1 is installed on the first support plate 2 and / or the second support plate 3 to keep the universal adjustable arm fixation device relatively stationary with respect to the patient. The first connecting mechanism 4 includes: an adjusting rod 41, a first ball head adjustment assembly 42, and a first locking assembly 43. One end of the adjusting rod 41 is rotatably and slidably connected to the first support plate 2, and the other end of the adjusting rod 41 is rotatably connected to the first ball head adjustment assembly 42. The end of the first ball head adjustment assembly 42 away from the adjusting rod 41 is rotatably and slidably connected to the second support plate 3. Multiple first locking assemblies 43 are respectively installed between the first ball head adjustment assembly 42 and the second support plate 3, between the first ball head adjustment assembly 42 and the adjusting rod 41, and between the adjusting rod 41 and the first support plate 2, to lock the adjusting rod 41, the first ball head adjustment assembly 42, and the first locking assembly 43 together.

[0032] This application adjusts the distance and rotation angle between the first and second support plates by rotating and sliding one end of an adjusting rod 41 onto the first support plate 2, and rotating the other end of the adjusting rod 41 onto the first ball-head adjusting assembly 42. The end of the first ball-head adjusting assembly 42 away from the adjusting rod 41 is rotated and slidably connected to the second support plate 3. The rotation and sliding connection of one end of the adjusting rod 41 to the first support plate 2 allows adjustment of the horizontal distance and rotation angle between the first support plate 2 and the second support plate 3. The rotation of the other end of the adjusting rod 41 to the first ball-head adjusting assembly 42 allows adjustment of the vertical rotation angle between the first support plate 2 and the second support plate 3. Furthermore, by individually adjusting the angle between the first ball-head adjusting assembly 42 and the second support plate 3, the second support plate 3 can be deflected on the first ball-head adjusting assembly 42, further adjusting the distance and rotation angle between the first support plate 2 and the second support plate 3. During use, the upper arm is placed on the first support plate 2. Then, by rotating and sliding the second support plate 3 and the first connecting mechanism 4, the second support plate 3 is roughly aligned with the forearm. Next, by rotating the adjustment rod 41 and the first ball head adjustment component 42, the second support plate 3 can fit tightly against the patient's forearm. Then, the fixing mechanism 1 is used to keep the adjusted first support plate 2 and the second support plate 3 relatively stationary with the patient. Then, multiple first locking components 43 are used to lock the adjustment rod 41, the first ball head adjustment component 42 and the first locking component 43 together, so that the adjusted first support plate 2 and the second support plate 3 remain relatively stationary with the adjustment rod 41 and the first ball head adjustment component 42. In this way, the patient's arm is fixed on the first support plate 2 and the second support plate 3, which can match the angle between the first support plate 2 and the second support plate 3 with the angle of the patient's elbow joint, reduce the patient's fatigue and psychological burden during surgery, provide a better surgical environment and comfort for the patient, provide better support for the patient's arm, and increase the comfort during surgery. Suitable for surgical patients with arm deformities and those requiring various special arm positions, this device offers easier and more convenient adjustment, providing support for the patient's arm, keeping muscles relaxed, preventing muscle fatigue caused by improper arm placement, providing a better surgical environment and comfort, effectively preventing intraoperative nerve compression damage, improving surgical efficiency and success rate, and reducing the incidence of postoperative complications.

[0033] The first support plate 2 and the second support plate 3 are both provided with grooves. The adjusting rod 41 and the first ball head adjusting component 42 rotate and slide in the grooves of the first support plate 2 and the second support plate 3, respectively. The grooves can limit the adjustment rod 41 and the first ball head adjusting component 42, and also facilitate the disassembly and storage of the adjusting rod 41 and the first ball head adjusting component 42, saving the space occupied during storage.

[0034] The device features a first ball joint adjusting assembly 42, with one end of the adjusting rod 41 rotating and slidingly connected to the first support plate 2, and the other end of the first ball joint adjusting assembly 42 rotating and slidingly connected to the second support plate 3. This allows for horizontal shortening or lengthening of the distance between the first support plate 2 and the second support plate 3, making the device suitable for more patients. The distance between the first support plate 2 and the second support plate 3 can be adjusted according to the distance between the forearm and upper arm of different patients, thus expanding its applicability. The other end of the adjusting rod 41 is rotatably connected to the first ball joint adjusting assembly 42, and both ends of the first connecting mechanism 4 rotate on the first support plate 2 and the second support plate 3 respectively. This allows for adjustment of the angle and height between the first support plate 2 and the second support plate 3, making the angle between them more closely match the angle between the patient's upper arm and forearm. This provides a more comfortable surgical experience for patients, further expanding the applicability and providing a better surgical environment and comfort for more patients.

[0035] The fixing mechanism 1 can be a horizontal gantry frame installed on an operating table or hospital bed. Suspension ropes are then installed on the gantry frame to secure the first support plate 2 and the second support plate 3, further providing support for the patient's arm. This method is simple to install, inexpensive, and highly adaptable. Alternatively, the fixing mechanism 1 can be a support frame installed on an operating table or hospital bed. This support frame secures the first support plate 2 and the second support plate 3, thereby providing support for the patient's arm. After installation, it is firm and stable, facilitating surgery and providing strong support, further improving patient comfort.

[0036] Among them, the first ball head adjustment component 42 is a universal ball head structure, which can be adjusted at a small angle around the ball head, thus making it suitable for more patients, making adjustment more effortless and convenient, and improving the matching efficiency with patients.

[0037] The first locking component 43 can be a bolt or screw. After the relative positions of the adjusting rod 41, the first ball-head adjusting component 42, the first support plate 2, and the second support plate 3 are determined, the first locking component 43 between the adjusting rod 41 and the first support plate 2 can be tightened to generate friction between the first locking component 43 and the first support plate 2. This friction will restrict the adjusting rod 41 within the groove of the first support plate 2. Similarly, the first locking component 43 between the first ball-head adjusting component 42 and the second support plate 3 can be tightened to generate friction between them. This friction will restrict the first ball-head adjusting component 42 within the groove of the second support plate 3. Then, the first locking component 43 between the first ball-head adjusting component 42 and the adjusting rod 41 will be tightened again to keep the first ball-head adjusting component 42 and the adjusting rod 41 locked together, forming a unified whole. This provides sufficient support for the patient and improves the patient's comfort during surgery.

[0038] Please see Figures 1 to 5 In some embodiments, the first ball head adjustment assembly 42 includes: a ball shaft 421, a first adjustment seat 422, a second adjustment seat 423, and a second locking assembly 424. The ball shaft 421 has a first ball head 425 and a second ball head 426 at both ends. The first ball head 425 is movably connected to the first adjustment seat 422, and the second ball head 426 is movably connected to the second adjustment seat 423. The first adjustment seat 422 is rotatably and slidably connected to the second support plate 3, and the second adjustment seat 423 is rotatably connected to the adjusting linkage 41. Multiple second locking assemblies 424 are respectively installed on the first adjustment seat 422 and the second adjustment seat 423, respectively restricting the movement of the first ball head 425 and the second ball head 426 within the first adjustment seat 422 and the second adjustment seat 423.

[0039] This application has a first ball head 425 and a second ball head 426 at both ends of the ball shaft 421. The first ball head 425 is movably connected to the first adjusting seat 422, and the second ball head 426 is movably connected to the second adjusting seat 423. The first adjusting seat 422 is rotatably and slidably connected to the second support plate 3, and the second adjusting seat 423 is rotatably connected to the adjusting connecting rod 41. The first ball head 425 and the second ball head 426 set at both ends of the ball shaft 421 can drive the second support plate 3 to be finely adjusted to more angles, making the adjustment more flexible and versatile. It can further adjust the small angle changes between the second support plate 3 and the first support plate 2, further expanding the applicable range. After adjusting to the appropriate position, by tightening the second locking component 424, multiple second locking components 424 will enter the second adjusting seat 423 and the first adjusting seat 422 respectively and contact the second ball head 426 and the first ball head 425, so that the second ball head 426 and the first ball head 425 are fixed in the second adjusting seat 423 and the first adjusting seat 422. The operation is convenient and labor-saving, and it can be used for more small angle changes and distance changes, so that the second support plate 3 and the first support plate 2 fit the patient's arm better.

[0040] The second adjusting seat 423 is rotatably connected to the adjusting link 41, which can further adjust the angle and height between the second support plate 3 and the first support plate 2. After adjusting to a suitable position, it can be locked and fixed by the first locking component 43, which further expands the applicable range.

[0041] The first adjusting seat 422 slides and rotates in the groove of the second tray 3, which facilitates installation. The circular first adjusting seat 422 can rotate or slide more smoothly in the groove of the second tray 3. Then, the friction between the first adjusting seat 422 and the second tray 3 is increased by the first locking component 43, so that the first adjusting seat 422 and the second tray 3 remain stationary to complete the adjustment, which improves the adjustment efficiency and the applicability of the second tray 3.

[0042] Please see Figures 1 to 4 In some embodiments, the adjusting linkage 41 includes: a plurality of connecting members 411, a third locking assembly 412, and an adjusting seat 413. Adjacent connecting members 411 are rotatably connected to each other. The first connecting member 411 is rotatably connected to the second adjusting seat 423, and the last connecting member 411 is rotatably connected to the adjusting seat 413. The adjusting seat 413 is rotatably and slidably connected to the first support plate 2. A plurality of third locking assemblies 412 are correspondingly installed at the connection points of adjacent connecting members 411 to restrict rotation between adjacent connecting members 411. The third locking assembly 412 is also installed between the last connecting member 411 and the adjusting seat 413 to restrict rotation between the last connecting member 411 and the adjusting seat 413.

[0043] This application uses several connectors 411, a third locking assembly 412, and an adjusting seat 413. Adjacent connectors 411 are rotatably connected to each other. The distance between the first tray 2 and the second tray 3 can be adjusted by several mutually rotatably connected connectors 411. The more mutually rotatably connected connectors 411 there are, the more flexible and varied the height and angle adjustment between the first tray 2 and the second tray 3 will be. After being adjusted to a suitable position, the adjacent connectors 411 are locked and fixed by tightening multiple third locking assemblies 412, thus making it suitable for more usage environments. When not in use, the first tray 2 and the second tray 3 can be folded up to save space.

[0044] The adjusting seat 413 is slidably and rotatably connected in the groove of the first support plate 2, which can further expand the applicable range of the first support plate 2 and the second support plate 3 and facilitate adjustment.

[0045] The end connector 411 is rotatably connected to the adjustment seat 413, which allows for further adjustment of the height, angle, and distance between the first support plate 2 and the second support plate 3. After that, it can be locked by the third locking component 412, giving the first support plate 2 and the second support plate 3 more freedom of movement, making it suitable for more patients' arms, facilitating adjustment, improving the fit with the patient's arm, reducing the patient's pain, and improving the success rate of the operation.

[0046] Please see Figures 1 to 4In some embodiments, the adjusting seat 413 includes: a fixed seat 4131, a rotating seat 4132, and a fourth locking assembly 4133. The fixed seat 4131 is slidably and rotatably connected to the first support plate 2, the rotating seat 4132 is rotatably connected to the fixed seat 4131, and the fourth locking assembly 4133 is installed on the fixed seat 4131 to restrict the rotation between the fixed seat 4131 and the rotating seat 4132. The fixed seat 4131 is provided with a scale, and a pointer is fixedly provided on the fixed seat 4131 to indicate the rotation angle between the fixed seat 4131 and the rotating seat 4132 in conjunction with the scale.

[0047] This application is rotatably connected to the fixed seat 4131 via a rotating seat 4132, and the fourth locking component 4133 is installed on the fixed seat 4131 to restrict the rotation between the fixed seat 4131 and the rotating seat 4132. The rotating seat 4132 is rotatably connected to the fixed seat 4131. After the fixed seat 4131 is fixed to the first support plate 2, if the patient wants to change the angle between the forearm and upper arm during the recovery process, the angle between the first support plate 2 and the second support plate 3 can be finely adjusted by rotating the rotating seat 4132 while the fixed seat 4131 restricts movement. Then, the fourth locking assembly 4133 is used to lock the rotating seat 4132 and the fixed seat 4131. Thus, only a slight rotation of the rotating seat 4132 is needed to drive the first ball head adjustment assembly 42, multiple connecting pieces 411 and the second support plate 3 to rotate, saving the adjustment time after the entire device is fixed to the patient and improving the adjustment efficiency. During the angle adjustment process, the locking and fixing of the first ball head adjustment assembly 42, multiple connecting pieces 411 and the second support plate 3 can continue to provide support for the patient during the adjustment process, reducing the patient's pain during the adjustment process and facilitating the patient's recovery and treatment.

[0048] This application features a scale on the fixed base 4131, with a pointer fixedly mounted on it. The pointer, in conjunction with the scale, indicates the rotation angle between the fixed base 4131 and the rotating base 4132. The pointer and scale facilitate the physician's observation and recording of the rotation angle between the patient's upper arm and forearm, providing assistance during the patient's recovery process. Furthermore, indicating the rotation angle between the fixed base 4131 and the rotating base 4132 facilitates adjustment and improves adjustment efficiency.

[0049] Please see Figures 1 to 6In some embodiments, the fixing mechanism 1 includes a second ball-head adjusting assembly 11, a clamping and fixing mechanism 12, and a fifth locking assembly 13. One end of the second ball-head adjusting assembly 11 is rotatably and slidably connected to the first support plate 2, and the other end of the second ball-head adjusting assembly 11 is rotatably connected to the clamping and fixing mechanism 12. The second ball-head adjusting assembly 11 has the same structure as the first ball-head adjusting assembly 42. The fifth locking assembly 13 is installed at both ends of the second ball-head adjusting assembly 11 to lock the second ball-head adjusting assembly 11, the first support plate 2, and the clamping and fixing mechanism 12.

[0050] This application utilizes a second ball-head adjustment assembly 11, one end of which is rotatably and slidably connected to the first support plate 2, and the other end of which is rotatably connected to the clamping and fixing mechanism 12. The second ball-head adjustment assembly 11 has the same structure as the first ball-head adjustment assembly 42. The second ball-head adjustment assembly 11 between the clamping and fixing mechanism 12 and the first support plate 2 can adjust the angle between the first support plate 2 and the fixing mechanism 1. When the clamping and fixing mechanism 12 is fixed on a hospital bed or operating table, it can also adjust the angle between the first support plate 2 and the patient's upper arm in a timely manner, so that the first support plate 2 can fit more closely to the patient's upper arm. It does not require special location to install the clamping and fixing mechanism 12 on the hospital bed or operating table, making it suitable for more usage environments and facilitating installation and fixing.

[0051] The second ball head adjustment component 11 has the same structure as the first ball head adjustment component 42, which is easy to manufacture. They can be replaced in time after damage. Alternatively, the patient's upper arm can be fixed using only the first support plate 2, the second ball head adjustment component 11, and the clamping and fixing mechanism 12. Different assembly schemes can be selected according to the patient's pathological condition, making it more flexible and reducing the burden on the patient.

[0052] The other end of the second ball-head adjusting assembly 11 is rotatably connected to the clamping and fixing mechanism 12. The fifth locking assembly 13 is installed at both ends of the second ball-head adjusting assembly 11, locking the second ball-head adjusting assembly 11, the first support plate 2, and the clamping and fixing mechanism 12. Rotating the second ball-head adjusting assembly 11 on the clamping and fixing mechanism 12 can further change the angle between the first support plate 2 and the fixing mechanism 1, expanding its applicable range. The fifth locking assembly 13 can be a bolt or screw, using clamping force or friction to lock and fix the clamping and fixing mechanism 12 and the first support plate 2, facilitating adjustment and improving adjustment efficiency.

[0053] This application can also install the first connecting mechanism 4 between the clamping and fixing mechanism 12 and the first tray 2, which can further expand the adjustment angle and height between the first tray 2 and the clamping and fixing mechanism 12, making it suitable for more different patients and improving freedom and comfort.

[0054] Please see Figures 1 to 7 In some embodiments, the clamping and fixing mechanism 12 includes: a support frame 121, a clamping block 122, a telescopic assembly 123, a sixth locking assembly 124, and a screw 125. The clamping block 122 is slidably connected to the support frame 121, forming a clamping groove 126 between the clamping block 122 and the support frame 121. The screw 125 is rotatably connected to the clamping block 122 and is connected to the support frame 121 via a threaded pair, changing the size of the clamping groove 126. The telescopic assembly 123 slides axially and rotates on the support frame 121, and a second ball-head adjusting assembly 11 is rotatably connected to the telescopic assembly 123. The sixth locking assembly 124 is mounted on the support frame 121, restricting the sliding and rotation of the telescopic assembly 123 on the support frame 121.

[0055] This application uses a clamping block 122 to slide on a support frame 121, forming a clamping groove 126 between the clamping block 122 and the support frame 121. By rotating the screw 125, the clamping block 122 is moved up and down, changing the size of the clamping groove 126. The entire fixing mechanism 1 is clamped to the edge of the hospital bed or operating table using the clamping groove 126 for fixation, which is convenient for operation, has a simple structure, and provides stable and reliable clamping.

[0056] This application utilizes a telescopic assembly 123 that slides axially and rotates on a support frame 121. A second ball-head adjustment assembly 11 is rotatably connected to the telescopic assembly 123, and a sixth locking assembly 124 is mounted on the support frame 121, restricting the sliding and rotation of the telescopic assembly 123 on the support frame 121. The axial sliding and rotation of the telescopic assembly 123 on the support frame 121 allows for wider applicability in various environments, reducing the stringent requirements for the clamping positions of the support frame 121 and the clamping block 122. This enables the use of more clamping positions and angles, reduces operational difficulty, and improves clamping efficiency.

[0057] Please see Figures 1 to 7 In some embodiments, the telescopic assembly 123 includes: a telescopic rod 1231, a rotating seat 1232, and a seventh locking assembly 1233. The telescopic rod 1231 is axially slidable and rotatably connected to the support frame 121. The rotating seat 1232 is rotatably connected to the end of the telescopic rod 1231 and rotatably connected to the second ball head adjustment assembly 11. The seventh locking assembly 1233 is installed on the rotating seat 1232 to lock the rotating seat 1232 and the telescopic rod 1231.

[0058] This application uses a telescopic rod 1231 that is axially sliding and rotatably connected to a support frame 121. A rotating seat 1232 is rotatably connected to the end of the telescopic rod 1231. By providing multiple annular grooves on the telescopic rod 1231, when it is desired to lock the telescopic rod 1231 onto the support frame 121, the sixth locking component 124 is tightened, causing the sixth locking component 124 to extend into the support frame 121 and contact the telescopic rod 1231. Locking and fixing are achieved by cooperating with the annular grooves. The rotation of the telescopic rod 1231 is restricted by friction, facilitating adjustment.

[0059] This application uses a rotating seat 1232 rotatably connected to the end of the telescopic rod 1231, and rotatably connected to the second ball head adjustment assembly 11. A seventh locking assembly 1233 is installed on the rotating seat 1232 to lock the rotating seat 1232 and the telescopic rod 1231. After the support frame 121 and clamping block 122 are clamped and fixed on the hospital bed or operating table, when the patient wants to turn their body, the seventh locking assembly 1233 can be loosened, allowing the rotating seat 1232 to rotate at the end of the telescopic rod 1231. This provides good support for the patient during body rotation, reduces patient pain, allows the patient to move their body easily during recovery, alleviates fatigue, and improves comfort.

[0060] Please see Figure 1 , Figure 2 and Figure 6 In some embodiments, the universal adjustable arm fixing device further includes: a second connecting mechanism 5 and a third support plate 6, wherein the third support plate 6 is mounted on the second support plate 3 through the second connecting mechanism 5, and the second connecting mechanism 5 has the same structure as the first connecting mechanism 4.

[0061] The third support plate 6 of this application is mounted on the second support plate 3 via a second connecting mechanism 5, which has the same structure as the first connecting mechanism 4. The third support plate 6 can be used to support the patient's hand and can be used or removed depending on the severity of the patient's condition, thereby reducing pressure on the patient, improving patient comfort, and further expanding its applicability. The second connecting mechanism 5, which has the same structure as the first connecting mechanism 4, can adjust the distance, height, and angle between the third support plate 6 and the second support plate 3, further expanding its applicability, increasing the overall flexibility of the device, and making it suitable for more patients. It allows for adjustment of the number of support plates and the angle between the support plates to suit different degrees of illness.

[0062] Please see Figure 1 , Figure 2 and Figure 6 In some embodiments, the universal adjustable arm fixing device further includes an arm fixing assembly 7 respectively mounted on the first support plate 2, the second support plate 3 and the third support plate 6.

[0063] This application utilizes an arm fixation assembly 7, which is installed on the first support plate 2, the second support plate 3, and the third support plate 6 respectively. The arm fixation assembly 7 can be a cover, with one end of the cover rotatably connected to the respective support plate. The other end of the cover is provided with a bolt or buckle for fixation. After the patient's arm is placed on the first support plate 2, the second support plate 3, or the third support plate 6, and adjusted to a suitable angle and locked, the cover is rotated so that the first support plate 2, the second support plate 3, or the third support plate 6 cooperates with the cover to wrap around the patient's arm, thus fixing the patient's arm on the first support plate 2, the second support plate 3, or the third support plate 6. This prevents the patient's arm from moving during the operation, increases the probability of surgical success, reduces patient pressure, and improves comfort. The metal arm fixation assembly 7 is easy to clean and disinfect and has a long service life.

[0064] Please see Figures 1 to 3 In some embodiments, the arm fixation component 7 is a strap, Velcro, or buckle belt.

[0065] This application utilizes an arm fixation component 7 that can be a strap, Velcro, or buckle belt. When the arm fixation component 7 is a strap, the manufacturing cost is low, it can be adapted to different patients' arm sizes, and the range of applications is expanded.

[0066] When the arm fixation component 7 is Velcro, it facilitates the binding of the patient's arm, improves the efficiency of fixation, can be adapted to the arm shape of more patients, and improves the patient's comfort after binding.

[0067] When the arm fixing component 7 is a buckle belt, it can improve the stability of the binding and facilitate cleaning and disinfection.

[0068] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A universal adjustable arm fixing device, characterized in that, include: The fixing mechanism (1), the first tray (2) and the second tray (3), and the first connecting mechanism (4) installed between the first tray (2) and the second tray (3); The fixation mechanism (1) is installed on the first support plate (2) and / or the second support plate (3) to keep the universal adjustable arm fixation device relatively stationary with respect to the patient; The first connecting mechanism (4) includes: an adjusting link (41), a first ball head adjusting assembly (42), and a first locking assembly (43); One end of the adjusting rod (41) is rotatably and slidably connected to the first support plate (2), and the other end of the adjusting rod (41) is rotatably connected to the first ball head adjusting assembly (42); The end of the first ball head adjustment assembly (42) away from the adjustment link (41) rotates and slides on the second support plate (3); Multiple first locking components (43) are respectively installed between the first ball head adjusting component (42) and the second support plate (3), between the first ball head adjusting component (42) and the adjusting rod (41), and between the adjusting rod (41) and the first support plate (2), to lock the adjusting rod (41), the first ball head adjusting component (42) and the first locking component (43) together.

2. The universal adjustable arm fixing device according to claim 1, characterized in that, The first ball head adjustment assembly (42) includes: a ball shaft (421), a first adjustment seat (422), a second adjustment seat (423), and a second locking assembly (424); The ball shaft (421) is provided with a first ball head (425) and a second ball head (426) at both ends; the first ball head (425) is movably connected to the first adjusting seat (422), and the second ball head (426) is movably connected to the second adjusting seat (423); The first adjusting seat (422) is rotatably and slidably connected to the second support plate (3), and the second adjusting seat (423) is rotatably connected to the adjusting rod (41); Multiple second locking components (424) are respectively mounted on the first adjusting seat (422) and the second adjusting seat (423), respectively restricting the movement of the first ball head (425) and the second ball head (426) in the first adjusting seat (422) and the second adjusting seat (423).

3. The universal adjustable arm fixing device according to claim 2, characterized in that, The adjusting link (41) includes: a plurality of connecting parts (411), a third locking assembly (412), and an adjusting seat (413); The adjacent connectors (411) are rotatably connected to each other, wherein the first connector (411) is rotatably connected to the second adjusting seat (423), and the last connector (411) is rotatably connected to the adjusting seat (413); The adjusting seat (413) is rotatably and slidably connected to the first support plate (2); Multiple third locking components (412) are respectively installed at the connection points of adjacent connectors (411) to restrict rotation between adjacent connectors (411); The third locking assembly (412) is also installed between the end connector (411) and the adjusting seat (413) to restrict rotation between the end connector (411) and the adjusting seat (413).

4. The universal adjustable arm fixing device according to claim 3, characterized in that, The adjusting seat (413) includes: a fixed seat (4131), a rotating seat (4132), and a fourth locking assembly (4133); The fixed seat (4131) is slidably and rotatably connected to the first support plate (2), the rotating seat (4132) is rotatably connected to the fixed seat (4131), and the fourth locking assembly (4133) is installed on the fixed seat (4131) to restrict the rotation between the fixed seat (4131) and the rotating seat (4132). The fixed base (4131) is provided with a scale, and a pointer is fixedly provided on the fixed base (4131) to indicate the rotation angle between the fixed base (4131) and the rotating base (4132) in conjunction with the scale.

5. The universal adjustable arm fixing device according to claim 4, characterized in that, The fixing mechanism (1) includes: a second ball head adjustment assembly (11), a clamping and fixing mechanism (12), and a fifth locking assembly (13); One end of the second ball head adjustment assembly (11) is rotatably and slidably connected to the first support plate (2), and the other end of the second ball head adjustment assembly (11) is rotatably connected to the clamping and fixing mechanism (12); The second ball head adjustment assembly (11) has the same structure as the first ball head adjustment assembly (42); The fifth locking assembly (13) is installed at both ends of the second ball head adjusting assembly (11) to lock the second ball head adjusting assembly (11), the first support plate (2) and the clamping and fixing mechanism (12).

6. The universal adjustable arm fixing device according to claim 5, characterized in that, The clamping and fixing mechanism (12) includes: a support frame (121), a clamping block (122), a telescopic assembly (123), a sixth locking assembly (124), and a screw (125); The clamping block (122) is slidably connected to the support frame (121), and a clamping groove (126) is formed between the clamping block (122) and the support frame (121); The screw (125) is rotatably connected to the clamping block (122), and the screw (125) is connected to the support frame (121) through a threaded pair to change the size of the clamping groove (126); The telescopic assembly (123) slides axially and rotates on the support frame (121), and the second ball head adjustment assembly (11) is rotatably connected to the telescopic assembly (123); The sixth locking assembly (124) is mounted on the support frame (121) to restrict the sliding and rotation of the telescopic assembly (123) on the support frame (121).

7. The universal adjustable arm fixing device according to claim 6, characterized in that, The telescopic assembly (123) includes: a telescopic rod (1231), a rotating seat (1232), and a seventh locking assembly (1233); The telescopic rod (1231) is axially slidable and rotatably connected to the support frame (121); the rotating seat (1232) is rotatably connected to the end of the telescopic rod (1231) and rotatably connected to the second ball head adjustment assembly (11); The seventh locking assembly (1233) is installed on the rotating seat (1232) to lock the rotating seat (1232) and the telescopic rod (1231).

8. The universal adjustable arm fixing device according to claim 1, characterized in that, The universal adjustable arm fixing device further includes: a second connecting mechanism (5) and a third support plate (6), wherein the third support plate (6) is mounted on the second support plate (3) through the second connecting mechanism (5); the second connecting mechanism (5) has the same structure as the first connecting mechanism (4).

9. The universal adjustable arm fixing device according to claim 8, characterized in that, The universal adjustable arm fixing device also includes an arm fixing assembly (7) respectively installed on the first support plate (2), the second support plate (3) and the third support plate (6).

10. The universal adjustable arm fixing device according to claim 9, characterized in that, The arm fixation component (7) is a strap, Velcro, or buckle belt.

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