Shoulder joint braking device used after breast cancer operation

Abstract

The invention discloses a breast cancer postoperative shoulder joint braking device, belongs to the technical field of medical auxiliary tools, and aims to solve the problem that lymphedema is easily caused due to the fact that a breast cancer postoperative braking device cannot adjust the lifting height of a lower arm on the affected side in the prior art. Comprising an upper arm supporting plate, a forearm supporting plate, an angle adjusting assembly and a fixing belt, the upper arm supporting plate comprises a first supporting part and a first rotating connecting part, and the first supporting part is used for placing the upper arm of a patient; the forearm supporting plate comprises a second supporting part and a second rotary connecting part, and the second supporting part is used for placing the forearm of the patient; the angle adjusting assembly comprises a first gear, a second gear and a rocking handle, the first gear is rotatably connected to the first rotary connecting part, the second gear is fixed to the second rotary connecting part, and the first gear is meshed with the second gear; a rocking handle is arranged on the surface of the first gear; the two ends of the fixing band are detachably and fixedly connected to the outer wall face of the forearm supporting plate and used for being bound to the shoulder on the opposite side of the shoulder on the affected side.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary tools, in particular to a shoulder joint braking device after breast cancer surgery. Background Art

[0002] Breast cancer is a common malignant tumor, and the postoperative rehabilitation process has an important impact on the patient's overall prognosis and quality of life. After surgical resection of breast cancer tissue, patients usually need to undergo a series of rehabilitation training and preventive measures to reduce the occurrence of postoperative complications, including preventing postoperative lymphedema and recovery of functional impairment.

[0003] In current clinical practice, doctors usually recommend that patients should not abduct the affected shoulder joint and raise the affected limb within the first week after surgery to prevent the occurrence of early lymphedema. However, patients often forget this requirement in their daily lives due to living habits or other factors, resulting in shoulder abduction. In addition, when patients get out of bed to move, the affected limb often droops naturally due to fear or wound pain. This situation not only violates the requirements of the rehabilitation program, but also increases the incidence of postoperative wound bleeding, effusion and lymphedema, seriously affecting the patient's rehabilitation process.

[0004] The postoperative braking device for breast cancer in the related art can limit the movement of the upper arm and prevent abduction. However, it cannot effectively adjust the height of the lower arm on the affected side, causing the patient's lower arm to be in a drooping state for a long time. This will increase the probability of postoperative wound bleeding, effusion and lymphedema, thereby affecting the recovery of the patient's postoperative wound and functional impairment of the affected limb.

[0005] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0006] The present application provides a shoulder joint braking device after breast cancer surgery, which is used to solve the problem in the related art that the braking device after breast cancer surgery cannot adjust the lifting height of the affected lower arm, which easily leads to lymphedema.

[0007] To achieve the above objectives, the present application discloses the following technical solutions:

[0008] A postoperative shoulder joint braking device for breast cancer includes an upper arm support plate, a forearm support plate, an angle adjustment assembly and a fixing belt, wherein the upper arm support plate includes a first support portion and a first rotating connection portion, wherein the first support portion is used to place the patient's upper arm; the forearm support plate includes a second support portion and a second rotating connection portion, wherein the second support portion is used to place the patient's forearm; and the second rotating connection portion is rotatably connected to the first rotating connection portion. The angle adjustment assembly includes a first gear, a second gear and a crank, wherein the first gear is rotatably connected to the first rotating connection portion around the central axis of the first gear, and a crank is provided on the surface of the first gear away from the first rotating connection portion; the second gear is fixed to the second rotating connection portion, the first gear is meshed with the second gear, and the central axis of the second gear coincides with the rotating axis of the second rotating connection portion; both ends of the fixing belt are detachably fixedly connected to the outer wall surface of the forearm support plate, and are used to be bound to the opposite shoulder of the affected shoulder.

[0009] In the embodiment of the present application, the upper arm support plate and the forearm support plate can support the patient's upper arm and forearm, and the first rotating connection part and the second rotating connection part can support the patient's elbow; in addition, the first gear can be rotated by the crank to drive the second gear to rotate, so as to adjust the tilt angle of the forearm support plate. This design allows medical staff or patients to adjust the height of the forearm as needed, thereby avoiding long-term postures that are not conducive to blood circulation and lymph flow, reducing the risk of postoperative wound bleeding, effusion and lymphedema, and helping to accelerate wound healing and functional recovery.

[0010] In addition, this setting reduces the difficulty of operation, allowing patients to easily complete the adjustment operation without external assistance, increasing the patient's autonomy and independence, allowing patients to adjust the height of the forearm independently without waiting for help from others, which is conducive to ensuring the timeliness of the forearm's lifting height, reducing postoperative wound bleeding, effusion and lymphedema caused by untimely adjustment, and helping to accelerate wound healing and functional recovery.

[0011] In addition, after the angle is adjusted, this setting can still provide all-round support for the patient's forearm, avoiding partial suspension of the forearm, helping to evenly disperse the pressure on the affected limb and reduce discomfort or injury caused by concentrated pressure.

[0012] In some possible implementations, the postoperative shoulder joint braking device for breast cancer further includes an angle fixing mechanism, which includes a connecting rod, a first limiting assembly and a second limiting assembly, the first limiting assembly includes a first plug-in structure and a second plug-in structure, the first gear is rotatably connected to the first rotating connection part through a rotating shaft; the first plug-in structure is arranged on the rotating shaft, the second plug-in structure is arranged on one end of the connecting rod, and the first plug-in structure is detachably fixedly connected to the second plug-in structure; a connecting column is arranged on the surface of the second gear away from the second rotating connection part, and the central axis of the connecting column coincides with the central axis of the second gear; the other end of the connecting rod is detachably fixedly connected to the connecting column through the second limiting assembly. In this way, it can be ensured that the relative position between the two gears remains unchanged, and the angle change caused by accidental touch or other external forces is prevented, thereby improving the reliability of the device.

[0013] In some possible embodiments, a first plug hole is provided on the first rotating shaft, and the central axis of the first plug hole coincides with the axis of the first rotating shaft; a first through groove penetrating the circumferential outer wall of the first rotating shaft is provided on the circumferential side wall of the first plug hole, and the central axis of the first through groove is perpendicular to the axis of the first rotating shaft; the first plug structure includes a first plug rod, a first limit block, a first assembly plate, a limit disk and a first spring, and the first plug rod is arranged in the first through groove; the first limit block is fixedly connected to one end of the first plug rod, and the first limit block can be located in the first through groove, and at least A portion is located in the first plug-in hole, and a transition slope is arranged on the first limit block, and the transition slope is away from the first gear; a first avoidance groove is arranged at a position corresponding to the first through groove on the circumferential outer wall surface of the first rotating shaft, and the first assembly plate is arranged in the first avoidance groove, and a first through hole is opened on the first assembly plate; the first plug-in rod is passed through the first through hole; the limit plate is arranged on one end of the first plug-in rod located outside the first assembly plate, and the radius of the limit plate is greater than the radius of the first through hole; the first spring is sleeved on the first plug-in rod and is located in the first through groove, and the radius of the first spring is greater than the radius of the first through hole.

[0014] In some possible implementations, the second plug-in structure includes a second plug-in rod and a first limiting sleeve, the second plug-in rod includes a first rod body, a second rod body and a third rod body, the second rod body is connected between the first rod body and the third rod body, the maximum radius of the first rod body is greater than the radius of the second rod body, and the maximum radius of the first rod body is less than or equal to the radius of the first plug-in hole; the end face radius of the first rod body away from the first gear is the largest, and the first rod body can abut against the first limiting block; the minimum radius of the third rod body is greater than the radius of the second rod body;

[0015] The first limiting sleeve is slidably sleeved on the second rod body in a first direction, and the first direction is parallel to the central axis of the second rod body; the first limiting sleeve includes a first sleeve section and a second sleeve section, the first sleeve section is located between the first rod body and the second sleeve section, and a second avoidance groove for avoiding the first sleeve section is provided on the end surface of the first rod body away from the first gear, and the radius of the second sleeve section becomes smaller and smaller in the direction from the end of the second sleeve section close to the first sleeve section to the end of the second sleeve section away from the first sleeve section; the second sleeve section includes a first end face and a second end face, the first end face is away from the first rod body, the outer radius of the second end face is greater than or equal to the maximum radius of the first rod body, and the outer radius of the second end face is greater than the maximum radius of the first sleeve section; when the second end face fits with the end face of the first rod body away from the first gear, the first sleeve section is located in the second avoidance groove;

[0016] There is a gap between the orthographic projection of the first end face on the first plane and the orthographic projection of the first limit block on the first plane; wherein the first plane is perpendicular to the first direction; the first limit block can abut against the circumferential side wall of the second sleeve section; the first limit block can be located between the first rod body and the first limit sleeve; a conical expansion hole is provided at the opening of the first plug-in hole, and a conical portion matching the conical expansion hole is provided on the third rod body, and when the conical portion abuts against the conical expansion hole, the first limit sleeve is located between the first limit block and the first gear.

[0017] In this way, the first rod body of the second plug-in rod can be inserted into the first plug-in hole so that the first rod body of the second plug-in rod can abut against the transition inclined surface of the first limit block; the second plug-in rod can slide along the inclination direction of the transition inclined surface, and during the sliding process, the second plug-in rod acts on the component force perpendicular to the transition inclined surface, so that the spring can push the first limit block to move into the first through-groove, and when the first limit block moves to a predetermined position, the first rod body can be avoided so that the first rod body can move between the first gear and the first limit block; it can be understood that during the transition of the first limit block moving into the first through-groove, the first spring will be gradually compressed by force.

[0018] When the first rod body can move between the first gear and the first limit block, the first spring will elastically recover, so that the first limit block is clamped between the first rod body and the first limit sleeve, and the second plug-in rod is fixed in the first plug-in hole, thereby realizing a fixed connection between the first limit assembly and the first gear.

[0019] When the second plug-in rod needs to be removed from the first plug-in hole, the second plug-in rod can be removed into a deeper position in the first plug-in hole to move the first limiting sleeve to between the first limiting block and the first gear (the principle is the same as moving the first rod body between the first gear and the first limiting block, which will not be repeated here).

[0020] At this time, since the radius of the second sleeve section becomes smaller and smaller (i.e., a conical surface) from the end of the second sleeve section close to the first sleeve section to the end of the second sleeve section away from the first sleeve section; there is a gap between the orthographic projection of the first end surface on the first plane and the orthographic projection of the first limit block on the first plane, the first limit block can only abut against the conical surface of the second sleeve section.

[0021] Since the outer radius of the second end face is greater than the maximum radius of the first sleeve section, and the outer radius of the second end face is greater than or equal to the maximum radius of the first rod body, the first limit sleeve can be slidably sleeved on the second rod body. Therefore, under the abutment of the first limit block, the second end face can fit with the end face of the first rod body away from the first gear. Therefore, when the second plug rod is pulled outward, the conical surface of the second sleeve section can be used to make the first limit block transitionally abut against the circumferential side wall of the first rod body, and then the second plug rod can be further pulled outward to achieve the detachment of the second plug rod and release the connection between the first limit assembly and the first gear. In this way, the user can realize the fixed connection and disconnection of the first limit assembly and the first gear through a simple plug-in and pull-out action, which improves the convenience of use and reduces the operation time.

[0022] In addition, when the conical portion abuts against the conical expansion hole, the first limit sleeve is pushed to the setting between the first limit block and the first gear, which can provide precise physical feedback, so that the user can clearly identify whether the preset depth has been reached, thereby improving the convenience of use.

[0023] In addition, the design of the second avoidance groove can ensure that during the plug-in process, the first sleeve section can be fully matched and embedded in the first rod body, reducing shaking or offset during the plug-in process, improving the stability of the connection, and optimizing the smoothness and comfort of the operation.

[0024] In some possible implementations, the first support portion is provided with a first arc-shaped groove for placing the upper arm, and the outer wall surface of the first support portion is provided with a first binding belt; the second support portion is provided with a second arc-shaped groove for placing the second forearm; and the outer wall surface of the second support portion is provided with a second binding belt. In this way, the shape of the patient's upper arm and forearm can be well matched, the contact area is increased, the support is more stable, and the sliding or displacement of the limb on the support plate is effectively avoided, thereby ensuring the stability and safety of the support.

[0025] In some possible implementations, a flexible pad is provided on the groove wall surface of the first arc groove and the groove wall of the second arc groove, which is helpful to disperse the pressure, increase the fit, and improve the wearing comfort.

[0026] In some possible implementations, both ends of the first binding belt are connected to the first support portion by Velcro, and both ends of the second binding belt are connected to the second support portion by Velcro. In this way, the patient or medical staff can quickly adjust the tightness according to actual needs, which improves the convenience and comfort of use.

[0027] In some possible implementations, in the direction from the end of the second sleeve segment close to the first sleeve segment to the end of the second sleeve segment far from the first sleeve segment, the radius of the first rod body and the radius of the first sleeve segment are increasing; the second avoidance groove is a tapered groove. In this way, the insertion resistance of the second plug-in rod can be reduced, making the assembly and disassembly of the device more convenient. In addition, in this way, it can also ensure that the first sleeve segment can be firmly fixed in the second avoidance groove, avoiding the displacement or falling off of the device due to looseness or instability, thereby improving the stability and reliability of the device during use.

[0028] In some possible implementations, the number of the first through slot, the first plug rod, the first limit block, the first assembly plate, the limit plate and the first spring are all two, the two first through slots are arranged opposite to each other, and the central axes of the two first through slots coincide, and each first through slot is equipped with a first plug rod, a first limit block, a first assembly plate, a limit plate and a first spring. In this way, the deviation or tilt caused by uneven distribution of weight or force can be reduced, and the stability, durability, operational flexibility, reliability and safety of the device are improved.

[0029] In some possible implementations, the second limit assembly includes a structure identical to that of the first limit assembly, the connecting column is provided with a structure identical to the rotating shaft, the connecting column is provided with a third plug hole corresponding to the first plug hole, the connecting column is provided with a limit key slot, the limit key slot is connected to the third plug hole; the extension direction of the limit key slot is the same as the extension direction of the third plug hole;

[0030] The second limiting assembly includes a third plug-in rod corresponding to the second plug-in rod, the third plug-in rod includes a fourth rod corresponding to the first rod and a fifth rod corresponding to the second rod, the fourth rod is provided with a limit key that matches the limit key slot, the fifth rod is rotatably connected to the connecting rod and penetrates the connecting rod, the fifth rod is penetrated through the circumferential side wall of one end of the connecting rod and is provided with an external thread, the second limiting assembly also includes a locking cap, and the circumferential inner wall surface of the locking cap is provided with an internal thread that matches the external thread.

[0031] In this way, when in use, the limit key on the fourth rod body can be aligned with the limit key slot first, and then part of the fourth rod body can be inserted into the third plug hole. Then, the connecting rod is rotated to align the second plug rod with the first plug hole, and then the connecting rod is pressed to insert the first rod body into the preset depth of the first plug hole, and the fourth rod body is inserted into the preset depth of the third plug hole, and then the locking cap is tightened. The friction between the locking cap and the connecting rod prevents the connecting rod and the third plug rod from having a relative angular displacement, and the setting of the limit key and the limit key slot prevents the fourth rod body from having a relative angular displacement with the connecting column. In this way, the connecting rod can be used to fix the angle, preventing the angle change caused by accidental touch or other external forces.

[0032] In some possible implementations, the crank is a retractable structure, so that when necessary, the length of the crank can be adjusted to avoid the connecting rod, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions. It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for the sake of clarity and ease of understanding, the sizes of some features may be deformed.

[0034] Figure 1 A schematic diagram of the structure of a shoulder joint braking device after breast cancer surgery provided in some embodiments of the present application;

[0035] Figure 2 for Figure 1 The schematic diagram of the structure of the shoulder joint immobilization device after breast cancer surgery from another perspective is shown;

[0036] Figure 3 for Figure 1 The schematic diagram of the partial structure of the shoulder joint immobilization device after breast cancer surgery is shown;

[0037] Figure 4 for Figure 3 An exploded view of the structure shown;

[0038] Figure 5 for Figure 3 A schematic diagram of the assembly of the rotating shaft and the first plug-in structure in the structure shown;

[0039] Figure 6 for Figure 4 An enlarged view of the circled portion of the structure shown at B;

[0040] Figure 7 for Figure 6 A schematic diagram of the assembly of the second plug-in structure and the connecting rod in the structure shown;

[0041] Figure 8 for Figure 3 The use status of the rotating shaft and the first limit assembly in the structure shown Figure 1 ;

[0042] Fig. 9 for Figure 3 An enlarged view of the circled portion of the structure shown at A;

[0043] Fig.10 for Figure 3 The use status of the rotating shaft and the first limit assembly in the structure shown Figure 2 ;

[0044] Fig.11 for Figure 3 The use status of the rotating shaft and the first limit assembly in the structure shown Figure 3 ;

[0045] Fig.12 for Figure 4 An enlarged view of the circled portion of the structure shown at C;

[0046] Fig.13 for Fig.12 Schematic diagram of the assembly of the third plug-in rod and the connecting rod in the structure shown. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0048] It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "horizontal", "inner", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0049] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Breast cancer is a common malignant tumor, and the postoperative rehabilitation process has an important impact on the patient's overall prognosis and quality of life. After surgical resection of breast cancer tissue, patients usually need to undergo a series of rehabilitation training and preventive measures to reduce the occurrence of postoperative complications, including preventing postoperative lymphedema and recovery of functional impairment.

[0051] In current clinical practice, doctors usually recommend that patients should not abduct the affected shoulder joint and raise the affected limb within the first week after surgery to prevent the occurrence of early lymphedema. However, patients often forget this requirement in their daily lives due to living habits or other factors, resulting in shoulder abduction. In addition, when patients get out of bed to move, the affected limb often droops naturally due to fear or wound pain. This situation not only violates the requirements of the rehabilitation program, but also increases the incidence of postoperative wound bleeding, effusion and lymphedema, seriously affecting the patient's rehabilitation process.

[0052] The postoperative braking device for breast cancer in the related art can limit the movement of the upper arm and prevent abduction. However, it cannot effectively adjust the height of the lower arm on the affected side, causing the patient's lower arm to be in a drooping state for a long time. This will increase the probability of postoperative wound bleeding, effusion and lymphedema, thereby affecting the recovery of the patient's postoperative wound and functional impairment of the affected limb.

[0053] For the above technical issues, please refer to Figure 1 Combined with Figure 2 ,in, Figure 1 A schematic diagram of the structure of a shoulder joint braking device 100 after breast cancer surgery provided in some embodiments of the present application; Figure 2 for Figure 1 The schematic diagram of the structure of the shoulder joint braking device 100 after breast cancer surgery under another viewing angle is shown. The embodiment of the present application provides a shoulder joint braking device 100 after breast cancer surgery, comprising an upper arm support plate 1, a forearm support plate 2, an angle adjustment assembly 3 and a fixing belt 4, wherein the upper arm support plate 1 comprises a first support portion 11 and a first rotating connection portion 12, wherein the first support portion 11 is used to place the patient's upper arm; the forearm support plate 2 comprises a second support portion 21 and a second rotating connection portion 22, wherein the second support portion 21 is used to place the patient's forearm; the second rotating connection portion 22 is rotatably connected to the first rotating connection portion 12; the angle adjustment assembly 3 comprises a first gear 31, a second gear 32 and a crank 33, wherein the first gear 31 is rotatably connected to the first rotating connection portion 12 around the central axis of the first gear 31, and the surface of the first gear 31 away from the first rotating connection portion 12 is provided with a crank 33; the crank 33 and the first gear 31 can be fixedly connected by screw connection, clamping, bonding, welding, etc.; or the crank 33 and the first gear 31 are integrally formed.

[0054] The second gear 32 is fixed on the second rotating connecting part 22, and the central axis of the second gear 32 coincides with the rotating axis 34 of the second rotating connecting part 22. The second gear 32 and the second rotating connecting part 22 can be fixedly connected by screw connection, clamping, bonding, welding, etc. The first gear 31 is meshed with the second gear 32; both ends of the fixing belt 4 are detachably fixedly connected to the outer wall surface of the forearm support plate 2, and are used to be bound to the shoulder opposite to the affected shoulder.

[0055] In this way, the upper arm support plate 1 and the forearm support plate 2 can support the patient's upper arm and forearm, and the first rotating connection part 12 and the second rotating connection part 22 can support the patient's elbow; in addition, the first gear 31 can be rotated by the crank 33 to drive the second gear 32 to rotate, so as to adjust the tilt angle of the forearm support plate 2. This design allows medical staff or patients to adjust the height of the forearm as needed, thereby avoiding long-term postures that are not conducive to blood circulation and lymph flow, reducing the risk of postoperative wound bleeding, effusion and lymphedema, and helping to accelerate wound healing and functional recovery.

[0056] In addition, this setting reduces the difficulty of operation, allowing patients to easily complete the adjustment operation without external assistance, increasing the patient's autonomy and independence, allowing patients to adjust the height of the forearm independently without waiting for help from others, which is conducive to ensuring the timeliness of the forearm's lifting height, reducing postoperative wound bleeding, effusion and lymphedema caused by untimely adjustment, and helping to accelerate wound healing and functional recovery.

[0057] In addition, after the angle is adjusted, this setting can still provide all-round support for the patient's forearm, avoiding partial suspension of the forearm, helping to evenly disperse the pressure on the affected limb and reduce discomfort or injury caused by concentrated pressure.

[0058] See also Figure 2 In some embodiments, the first support part 11 is provided with a first arc-shaped groove 111 for placing the upper arm, and the outer wall surface of the first support part 11 is provided with a first binding belt 112; the second support part 21 is provided with a second arc-shaped groove 211 for placing the second forearm; and the outer wall surface of the second support part 21 is provided with a second binding belt 212. In this way, the shape of the patient's upper arm and forearm can be well matched, the contact area is increased, the support is more stable, and the sliding or displacement of the limbs on the support board is effectively avoided, thereby ensuring the stability and safety of the support.

[0059] See also Figure 2 In some embodiments, a flexible pad 6 is provided on the groove wall surface of the first arc groove 111 and the groove wall of the second arc groove 211. This is conducive to dispersing pressure, increasing the sense of fit, and improving wearing comfort.

[0060] In some embodiments, both ends of the first binding belt 112 are connected to the first support portion 11 by Velcro, and both ends of the second binding belt 212 are connected to the second support portion 21 by Velcro. In this way, patients or medical staff can quickly adjust the tightness according to actual needs, which improves the convenience and comfort of use.

[0061] See also Figure 3 Combined with Figure 4 ,in, Figure 3 for Figure 1 The schematic diagram of the partial structure of the shoulder joint braking device 100 after breast cancer surgery is shown; Figure 4 for Figure 3 Exploded diagram of the structure shown. In some embodiments, the postoperative shoulder joint braking device 100 for breast cancer further includes an angle fixing mechanism 5, which includes a connecting rod 51, a first limiting assembly 52 and a second limiting assembly 53. The first limiting assembly 52 includes a first plug-in structure 521 and a second plug-in structure 522. The first gear 31 is rotatably connected to the first rotating connection part 12 through a rotating shaft 34; the first plug-in structure 521 is arranged on the rotating shaft 34, and the second plug-in structure 522 is arranged on one end of the connecting rod 51. The first plug-in structure 521 is detachably fixedly connected to the second plug-in structure 522; a connecting column 35 is arranged on the surface of the second gear 32 away from the second rotating connection part 22, and the central axis of the connecting column 35 coincides with the central axis of the second gear 32; the other end of the connecting rod 51 is detachably fixedly connected to the connecting column 35 through the second limiting assembly 53. In this way, the relative position between the two gears can be ensured to remain unchanged, and the angle change caused by accidental touch or other external forces can be prevented, thereby improving the reliability of the device.

[0062] See also Figure 5 , Figure 5 for Figure 3 Schematic diagram of the assembly of the rotating shaft 34 and the first plug structure 521 in the structure shown. In some embodiments, the first rotating shaft 34 is provided with a first plug hole 341, and the central axis of the first plug hole 341 coincides with the axis of the first rotating shaft 34; the circumferential side wall of the first plug hole 341 is provided with a first through groove 342 that penetrates the circumferential outer wall surface of the first rotating shaft 34, and the central axis of the first through groove 342 is perpendicular to the axis of the first rotating shaft 34; the cross-sectional shape of the first through groove 342 includes but is not limited to a rectangular shape, a circular shape, an elliptical shape or a polygonal shape.

[0063] The first plug structure 521 includes a first plug rod 5211, a first limiting block 5212, a first assembly plate 5213, a limiting plate 5214 and a first spring 5215. The first plug rod 5211 is disposed in the first through groove 342; the first limiting block 5212 is fixedly connected to one end of the first plug rod 5211. The first limiting block 5212 and the first plug rod 5211 can be fixedly connected by screw connection, clamping, bonding, welding, etc.; or the first limiting block 5212 and the first plug rod 5211 are an integrally formed part.

[0064] The first limit block 5212 can be located in the first through groove 342, at least a part of the first limit block 5212 is located in the first plug hole 341, and a transition slope 5212a is provided on the first limit block 5212, and the transition slope 5212a is away from the first gear 31; a first avoidance groove 343 is provided at a position corresponding to the first through groove 342 on the circumferential outer wall surface of the first rotating shaft 34, and the first assembly plate 5213 is arranged in the first avoidance groove 343, and a first through hole 5213a is opened on the first assembly plate 5213; the first plug rod 5211 is penetrated by the first through hole 5213a; the limit plate 5214 is arranged on one end of the first plug rod 5211 located outside the first assembly plate 5213; the radius of the limit plate 5214 is greater than the radius of the first through hole 5213a. The first spring 5215 is sleeved on the first plugging rod 5211 and is located in the first through groove 342 . The radius of the first spring 5215 is greater than the radius of the first through hole 5213 a .

[0065] See also Figure 6 Combined with Figure 7 ,in, Figure 6 for Figure 4 The enlarged view of the circled portion of the structure shown at B, Figure 7 for Figure 6 Schematic diagram of the assembly of the second plug structure 522 and the connecting rod 51 in the structure shown. On the basis of the above embodiment, the second plug structure 522 includes a second plug rod 5221 and a first limiting sleeve 5222, the second plug rod 5221 includes a first rod body 5221a, a second rod body 5221b and a third rod body 5221c, the second rod body 5221b is connected between the first rod body 5221a and the third rod body 5221c, the maximum radius of the first rod body 5221a is greater than the radius of the second rod body 5221b, and the maximum radius of the first rod body 5221a is less than or equal to the radius of the first plug hole 341; the end face radius of the first rod body 5221a away from the first gear 31 is the largest, and the first rod body 5221a can abut against the first limiting block 5212; the minimum radius of the third rod body 5221c is greater than the radius of the second rod body 5221b;

[0066] The first limiting sleeve 5222 is slidably sleeved on the second rod body 5221b in a first direction, and the first direction is parallel to the central axis of the second rod body 5221b; the first limiting sleeve 5222 includes a first sleeve section 5222a and a second sleeve section 5222b, the first sleeve section 5222a is located between the first rod body 5221a and the second sleeve section 5222b, and the end surface of the first rod body 5221a away from the first gear 31 is provided with a sleeve for avoiding the first gear 31. A second avoidance groove 5221a1 of a sleeve segment 5222a has a radius that becomes smaller and smaller in a direction from one end of the second sleeve segment 5222b close to the first sleeve segment 5222a to one end of the second sleeve segment 5222b far away from the first sleeve segment 5222a; the second sleeve segment 5222b includes a first end face 5222b1 and a second end face 5222b2, and the first end face 5222b1 is away from the first rod body 5221a.

[0067] The outer radius of the second end face 5222b2 is greater than or equal to the maximum radius of the first rod body 5221a. Specifically, when the maximum radius of the first rod body 5221a is less than the radius of the first plug hole 341, the outer radius of the second end face 5222b2 can be greater than or equal to the maximum radius of the first rod body 5221a. When the maximum radius of the first rod body 5221a is equal to the radius of the first plug hole 341, the outer radius of the second end face 5222b2 can only be equal to the maximum radius of the first rod body 5221a. The outer radius of the second end face 5222b2 is greater than the maximum radius of the first sleeve section 5222a; when the second end face 5222b2 fits the end face of the first rod body 5221a away from the first gear 31, the first sleeve section 5222a is located in the second avoidance groove 5221a1;

[0068] There is a gap between the orthographic projection of the first end face 5222b1 on the first plane and the orthographic projection of the first limit block 5212 on the first plane; wherein the first plane is perpendicular to the first direction; the first limit block 5212 can abut against the circumferential side wall of the second sleeve section 5222b; the first limit block 5212 can be located between the first rod body 5221a and the first limit sleeve 5222; a conical expansion hole 3411 is provided at the orifice of the first plug-in hole 341, and a conical portion 5221c1 matching the conical expansion hole 3411 is provided on the third rod body 5221c, and when the conical portion 5221c1 abuts against the conical expansion hole 3411, the first limit sleeve 5222 is located between the first limit block 5212 and the first gear 31.

[0069] See also Figure 8 , Figure 8 for Figure 3 The use state of the rotating shaft 34 and the first limiting assembly 52 in the structure shown Figure 1In this way, the second plug rod 5221 can be inserted into the first plug hole 341, so that the first rod body 5221a of the second plug rod 5221 abuts against the transition inclined surface 5212a of the first limit block 5212; the second plug rod 5221 can slide along the inclined direction of the transition inclined surface 5212a, and during the sliding process, the second plug rod 5221 acts on the component force perpendicular to the transition inclined surface 5212a, so that the spring can push the first limit block 5212 to move into the first through groove 342. When the first limit block 5212 moves to the predetermined position, the first rod body 5221a can be avoided, so that the first rod body 5221a can move between the first gear 31 and the first limit block 5212; it can be understood that in the transition of the first limit block 5212 moving into the first through groove 342, the first spring 5215 will be gradually compressed by force.

[0070] See also Fig. 9 , Fig. 9 for Figure 3 The structure shown is an enlarged view of the circled portion at A. When the first rod 5221a can move between the first gear 31 and the first limit block 5212, the first spring 5215 will perform elastic recovery, so that the first limit block 5212 is clamped between the first rod 5221a and the first limit sleeve 5222, and the second plug rod 5221 is fixed in the first plug hole 341, so that the first limit assembly 52 is fixedly connected to the first gear 31.

[0071] See also Fig.10 , Fig.10 for Figure 3 The use state of the rotating shaft 34 and the first limiting assembly 52 in the structure shown Figure 2 When the second plug rod 5221 needs to be removed from the first plug hole 341, the second plug rod 5221 can be inserted deeper into the first plug hole 341 to move the first limiting sleeve 5222 to between the first limiting block 5212 and the first gear 31 (the principle is the same as that of the first rod body 5221a moving between the first gear 31 and the first limiting block 5212, which will not be repeated here).

[0072] See also Fig.11 , Fig.11 for Figure 3 The use state of the rotating shaft 34 and the first limiting assembly 52 in the structure shown Figure 3At this time, since the radius of the second sleeve segment 5222b becomes smaller and smaller (i.e., a tapered surface) from the end of the second sleeve segment 5222b close to the first sleeve segment 5222a to the end of the second sleeve segment 5222b far from the first sleeve segment 5222a, there is a gap between the orthographic projection of the first end surface 5222b1 on the first plane and the orthographic projection of the first limit block 5212 on the first plane, the first limit block 5212 can only abut against the tapered surface of the second sleeve segment 5222b.

[0073] Since the outer radius of the second end face 5222b2 is greater than the maximum radius of the first sleeve section 5222a, and the outer radius of the second end face 5222b2 is greater than or equal to the maximum radius of the first rod body 5221a, the first limit sleeve can be slidably mounted on the second rod body 5221b. Therefore, under the abutment of the first limit block 5212, the second end face 5222b2 can be in contact with the end face of the first rod body 5221a away from the first gear 31. Therefore, when the second plug-in rod 5221 is pulled outward, the conical surface of the second sleeve section 5222b can be used to make the first limit block 5212 transitionally abut against the circumferential side wall of the first rod body 5221a, and then the second plug-in rod 5221 can be disassembled by continuing to pull the second plug-in rod 5221 outward, thereby releasing the connection between the first limit assembly 52 and the first gear 31. In this way, the user can realize the fixed connection and disconnection between the first limit assembly 52 and the first gear 31 through a simple plugging and pulling action, thereby improving the convenience of use and reducing the operation time.

[0074] In addition, when the conical portion 5221c1 abuts against the conical expansion hole 3411, the first limiting sleeve 5222 is pushed to the setting between the first limiting block 5212 and the first gear 31, which can provide precise physical feedback, so that the user can clearly identify whether the preset depth has been reached, thereby improving the convenience of use.

[0075] In addition, the design of the second avoidance groove 5221a1 can ensure that during the plugging process, the first sleeve section 5222a can be fully matched and embedded in the first rod body 5221a, reducing the shaking or offset during the plugging process, improving the stability of the connection, and optimizing the smoothness and comfort of the operation. Of course, the present application is not limited to this. In other embodiments, the first plug-in structure 521 can be a hole body opened on the rotating shaft 34, and the second plug-in structure 522 can be a rod body plugged and matched with the hole body. The rod body and the hole body are interference fit, and the friction between the two is used to achieve fixation.

[0076] See also Fig.10 Combined with Fig.11In some embodiments, in the direction from the end of the second sleeve section 5222b close to the first sleeve section 5222a to the end of the second sleeve section 5222b far from the first sleeve section 5222a, the radius of the first rod body 5221a and the radius of the first sleeve section 5222a are increasing; the second avoidance groove 5221a1 is a tapered groove. In this way, the insertion resistance of the second plug-in rod 5221 can be reduced, making the assembly and disassembly of the device more convenient. In addition, in this way, it can also ensure that the first sleeve section 5222a can be firmly fixed in the second avoidance groove 5221a1, avoiding the displacement or falling off of the device due to looseness or instability, thereby improving the stability and reliability of the device during use.

[0077] See also Fig.11 In some embodiments, the number of the first through slot 342, the first plug rod 5211, the first limit block 5212, the first assembly plate 5213, the limit plate 5214 and the first spring 5215 are all two, the two first through slots 342 are arranged opposite to each other, and the central axes of the two first through slots 342 coincide, and each first through slot 342 is equipped with a first plug rod 5211, a first limit block 5212, a first assembly plate 5213, a limit plate 5214 and a first spring 5215. In this way, the deviation or tilt caused by the uneven distribution of weight or force can be reduced, and the stability, durability, operational flexibility, reliability and safety of the device are improved.

[0078] Of course, the present application is not limited thereto. In other embodiments, the number of the first through slots 342 can also be three, and the three first through slots 342 are evenly spaced around the circumference of the first plug hole 341. Each first through slot 342 is configured with a first plug rod 5211, a first limiting block 5212, a first assembly plate 5213, a limiting plate 5214 and a first spring 5215.

[0079] In some embodiments, the crank 33 is a retractable structure. In this way, when necessary, the length of the crank 33 can be adjusted to avoid the connecting rod 51, thereby improving the convenience of use.

[0080] See also Fig.12 and Fig.13 ,in, Fig.12 for Figure 4 An enlarged view of the circled portion of the structure shown at C; Fig.13 for Fig.12Schematic diagram of the assembly of the third plug rod 531 and the connecting rod 51 in the structure shown. In some embodiments, the second limit assembly 53 includes a structure identical to that of the first limit assembly 52, the connecting column 35 is provided with a structure identical to the rotating shaft 34, the connecting column 35 is provided with a third plug hole 351 corresponding to the first plug hole 341, the connecting column 35 is provided with a limit key groove 352, the limit key groove 352 is connected to the third plug hole 351; the extension direction of the limit key groove 352 is the same as the extension direction of the third plug hole 351;

[0081] The second limiting assembly 53 includes a third plug-in rod 531 corresponding to the second plug-in rod 5221, the third plug-in rod 531 includes a fourth rod 5311 corresponding to the first rod 5221a and a fifth rod 5312 corresponding to the second rod 5221b, the fourth rod 5311 is provided with a limiting key 532 that matches with the limiting key groove 352, the fifth rod 5312 is rotatably connected to the connecting rod 51 and is penetrated through the connecting rod 51, the fifth rod 5312 is penetrated through the circumferential side wall of one end of the connecting rod 51 and is provided with an external thread, the second limiting assembly 53 also includes a locking cap 533, the circumferential inner wall surface of the locking cap 533 is provided with an internal thread that matches with the external thread.

[0082] Thus, when in use, the limit key 532 on the fourth rod 5311 can be aligned with the limit key slot 352, and then the fourth rod 5311 can be partially inserted into the third plug hole 351. Then the connecting rod 51 is rotated to align the second plug rod 5221 with the first plug hole 341, and then the connecting rod 51 is pressed to insert the first rod 5221a into the first plug hole 341 to a preset depth, and the fourth rod 5311 is inserted into the third plug hole 351 to a preset depth, and then the locking cap 533 is tightened, and the friction between the locking cap 533 and the connecting rod 51 is used to prevent the connecting rod 51 and the third plug rod 531 from having a relative angular displacement, and because of the setting of the limit key 532 and the limit key slot 352, there is no relative angular displacement between the fourth rod 5311 and the connecting column 35.

[0083] In this way, the connecting rod 51 can be used to fix the angle, preventing the angle from changing due to accidental touch or other external forces. The detailed usage and principle of the second limit assembly 53 can refer to the usage and principle of the first limit assembly 52, which will not be repeated here. Of course, the present application is not limited to this. In other embodiments, the structure of the second limit assembly 53 can also be different from the structure of the first limit assembly 52. ​​For example, the second limit assembly 53 can be a simple plug-in fit between the hole body and the rod body or a threaded fit between the hole body and the rod body.

[0084] It is necessary to explain that the system usage methods of some embodiments disclosed in this application are:

[0085] The patient's upper arm is placed on the first support portion 11 of the upper arm support plate 1 and fixed by the first binding belt 112. The patient's forearm is placed on the second support portion 21 of the forearm support plate 2 and fixed by the second binding belt 212. Then, the two ends of the forearm support plate 2 are fixed to the patient's affected shoulder and the opposite shoulder using the fixing belt 4 to ensure the stability of the device. Then, by shaking the crank 33, the first gear 31 is rotated, driving the second gear 32 meshing therewith to rotate, and adjusting the angle of the forearm support plate 2 relative to the upper arm support plate 1 to achieve a suitable forearm lifting angle.

[0086] After adjusting the angle, first align the limit key 532 on the fourth rod 5311 with the limit key slot 352 , and then insert part of the fourth rod 5311 into the third plug hole 351 . Then, the connecting rod 51 is rotated to align the second plugging rod 5221 with the first plugging hole 341, and then the connecting rod 51 is pressed to insert the first rod body 5221a into the preset depth of the first plugging hole 341, and the fourth rod body 5311 is inserted into the preset depth of the third plugging hole 351, so that the second plugging rod 5221 is fixed in the first plugging hole 341, and the third plugging rod 531 is fixed in the third plugging hole 351; then, the locking cap 533 is tightened, and the friction between the locking cap 533 and the connecting rod 51 is used to prevent the connecting rod 51 and the third plugging rod 531 from relative angular displacement, and the cooperation between the limit key 532 and the limit key slot 352 is used to prevent the fourth rod body 5311 and the connecting column 35 from relative angular displacement. In this way, the connecting rod 51 can be used to achieve angle fixation. The specific principle is as follows: there is no relative angular displacement between the fourth rod body 5311 and the connecting column 35, that is, when the second gear 32 rotates, the third plug rod 531 will rotate accordingly, thereby driving the connecting rod 51 to rotate. However, the other end of the connecting rod 51 is fixed to the rotating shaft 34 through the first limit assembly 52, so the connecting rod 51 cannot rotate, thus achieving the fixing of the angle.

[0087] When the lock needs to be released, the connecting rod 51 only needs to be pressed further until it stops, and then the connecting rod 51 can be pulled outward to separate the first limiting assembly 52 from the rotating shaft 34 and the second limiting assembly 53 from the connecting column 35 .

[0088] The present invention and its embodiments are described above, and such description is not restrictive. What is shown in the full text is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A shoulder joint braking device after breast cancer surgery, characterized in that: include: An upper arm support plate, the upper arm support plate comprising a first support portion and a first rotation connection portion, the first support portion being used to place the patient's upper arm; A forearm support plate, the forearm support plate comprising a second support portion and a second rotation connection portion, the second support portion is used to place the patient's forearm, and the second rotation connection portion is rotatably connected to the first rotation connection portion; An angle adjustment assembly, the angle adjustment assembly comprising a first gear, a second gear and a crank, the first gear being rotatably connected to the first rotating connection portion around a central axis of the first gear, the crank being provided on a surface of the first gear away from the first rotating connection portion; the second gear being fixed to the second rotating connection portion, the first gear being meshed with the second gear, and the central axis of the second gear being coincident with the rotation axis of the second rotating connection portion; A fixing belt, both ends of which are detachably fixedly connected to the outer wall surface of the forearm support plate, and are used to be bound to the shoulder on the opposite side of the affected shoulder.

2. The postoperative shoulder joint braking device for breast cancer according to claim 1, characterized in that: It also includes an angle fixing mechanism, the angle fixing mechanism comprising: Connecting rod; A first limiting assembly, the first limiting assembly comprising a first plug-in structure and a second plug-in structure, the first gear being rotatably connected to the first rotating connection portion via a rotating shaft; the first plug-in structure being arranged on the rotating shaft, the second plug-in structure being arranged on one end of the connecting rod, and the first plug-in structure being detachably fixedly connected to the second plug-in structure; A second limiting assembly, a connecting column is provided on the surface of the second gear away from the second rotating connection part, and the central axis of the connecting column coincides with the central axis of the second gear; the other end of the connecting rod is detachably fixedly connected to the connecting column through the second limiting assembly.

3. The postoperative shoulder joint braking device for breast cancer according to claim 2, characterized in that: The first rotating shaft is provided with a first plug hole, the central axis of which coincides with the axis of the first rotating shaft; the circumferential side wall of the first plug hole is provided with a first through groove penetrating the circumferential outer wall surface of the first rotating shaft, the central axis of which is perpendicular to the axis of the first rotating shaft; The first plug-in structure comprises: a first plug-in rod, the first plug-in rod being disposed in the first through slot; a first limit block, the first limit block is fixedly connected to one end of the first plug rod, the first limit block can be located in the first through groove, at least a portion of the first limit block is located in the first plug hole, and a transition slope is provided on the first limit block, and the transition slope is away from the first gear; A first assembly plate, wherein a first avoidance groove is provided on the circumferential outer wall surface of the first rotating shaft at a position corresponding to the first through groove, the first assembly plate is arranged in the first avoidance groove, and a first through hole is opened on the first assembly plate; the first plug rod is passed through the first through hole; A limiting plate, wherein the limiting plate is arranged on one end of the first plug-in rod outside the first assembly plate, and the radius of the limiting plate is greater than the radius of the first through hole; A first spring is sleeved on the first plug-in rod and is located in the first through-groove. The radius of the first spring is greater than the radius of the first through-hole.

4. The postoperative shoulder joint braking device for breast cancer according to claim 3, characterized in that: The second plug-in structure comprises a second plug-in rod and a first limiting sleeve, the second plug-in rod comprises a first rod body, a second rod body and a third rod body, the second rod body is connected between the first rod body and the third rod body, the maximum radius of the first rod body is greater than the radius of the second rod body, and the maximum radius of the first rod body is less than or equal to the radius of the first plug-in hole; the end face radius of the first rod body away from the first gear is the largest, and the first rod body can abut against the first limiting block; the minimum radius of the third rod body is greater than the radius of the second rod body; The first limiting sleeve is slidably sleeved on the second rod body in a first direction, and the first direction is parallel to the central axis of the second rod body; the first limiting sleeve includes a first sleeve section and a second sleeve section, the first sleeve section is located between the first rod body and the second sleeve section, and a second avoidance groove for avoiding the first sleeve section is provided on the end surface of the first rod body away from the first gear, and the radius of the second sleeve section becomes smaller and smaller in the direction from the end of the second sleeve section close to the first sleeve section to the end of the second sleeve section away from the first sleeve section; the second sleeve section includes a first end surface and a second end surface, the first end surface is away from the first rod body, the outer radius of the second end surface is greater than or equal to the maximum radius of the first rod body, and the outer radius of the second end surface is greater than the maximum radius of the first sleeve section; when the second end surface is in contact with the end surface of the first rod body away from the first gear, the first sleeve section is located in the second avoidance groove; There is a gap between the orthographic projection of the first end face on the first plane and the orthographic projection of the first limit block on the first plane; wherein, the first plane is perpendicular to the first direction; the first limit block can abut against the circumferential side wall of the second sleeve section; the first limit block can be located between the first rod body and the first limit sleeve; a conical reaming hole is provided at the opening of the first plug-in hole, and a conical portion matching the conical reaming hole is provided on the third rod body, and when the conical portion abuts against the conical reaming hole, the first limit sleeve is located between the first limit block and the first gear.

5. The postoperative shoulder joint braking device for breast cancer according to claim 1, characterized in that: The first supporting portion is provided with a first arc-shaped groove for placing the upper arm, and the outer wall surface of the first supporting portion is provided with a first binding belt; The second supporting portion is provided with a second arc-shaped groove for accommodating the second forearm; and the outer wall surface of the second supporting portion is provided with a second binding belt.

6. The postoperative shoulder joint braking device for breast cancer according to claim 5, characterized in that: Flexible pads are provided on the groove wall surface of the first arc-shaped groove and on the groove wall of the second arc-shaped groove.

7. The postoperative shoulder joint braking device for breast cancer according to claim 5, characterized in that: Both ends of the first binding belt are connected to the first supporting portion by Velcro, and both ends of the second binding belt are connected to the second supporting portion by Velcro.

8. The postoperative shoulder joint braking device for breast cancer according to claim 4, characterized in that: In the direction from the end of the second sleeve segment close to the first sleeve segment to the end of the second sleeve segment far from the first sleeve segment, the radius of the first rod body and the radius of the first sleeve segment become larger and larger; the second avoidance groove is a tapered groove.

9. The postoperative shoulder joint braking device for breast cancer according to claim 4, characterized in that: The number of the first through-grooves, the first plug-in rod, the first limit block, the first assembly plate, the limit plate and the first spring are all two, the two first through-grooves are arranged opposite to each other, and the central axes of the two first through-grooves coincide, and each of the first through-grooves is configured with one first plug-in rod, one first limit block, one first assembly plate, one limit plate and one first spring.

10. The postoperative shoulder joint braking device for breast cancer according to claim 4, characterized in that: The second limit assembly includes a structure identical to that of the first limit assembly, the connecting column is provided with a structure identical to that of the rotating shaft, and the connecting column is further provided with a limit key groove, the limit key groove is connected to a third plug hole on the connecting column corresponding to the first plug hole; the extension direction of the limit key groove is the same as the extension direction of the third plug hole; The second limiting assembly includes a third plug-in rod corresponding to the second plug-in rod, the third plug-in rod includes a fourth rod corresponding to the first rod and a fifth rod corresponding to the second rod, the fourth rod is provided with a limit key that matches the limit key slot, the fifth rod is rotatably connected to the connecting rod and penetrates the connecting rod, the fifth rod is penetrated through the circumferential side wall of one end of the connecting rod and is provided with an external thread, the second limiting assembly also includes a locking cap, and the circumferential inner wall surface of the locking cap is provided with an internal thread that matches the external thread.

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