An anti-rotation box
By designing an anti-rotation box, using airbag components to fix the affected limb in an abduction neutral position, the problem of external rotation of limbs after hip arthroplasty and long-term bed restoration is solved, the risk of pressure injury and deep venous thrombosis is reduced, and the functional recovery of the hip joint is promoted.
Patent Information
- Application Number
- CN202421199242.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-05-29
AI Technical Summary
After hip arthroplasty and long-term bed rest, the affected limbs are prone to external rotation, affecting the reconstruction of soft tissues and ligaments around the hip, thereby affecting the functional recovery of the hip joint, and increasing the risk of pressure injuries caused by long-term bed rest and deep vein thrombosis in the lower limbs.
An anti-rotation box is designed, including a box body, an airbag assembly and a foot pad. The airbag assembly consists of two array wedge-shaped airbags and a corresponding inflatable pump. By controlling the expansion degree and stiffness of the airbag, the affected limb is fixed in an abduction neutral position to prevent external rotation.
Effectively assist in fixing the affected limb, keeping it abduction neutral position, increasing anti-rotation effect, reducing the risk of early pressure injury and deep venous thrombosis in the lower limbs, and promoting functional recovery of the hip joint.
Smart Images

Figure CN222738171U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rehabilitation equipment, in particular to an anti-rotation box. Background Art
[0002] Anti-external rotation devices for patients after hip replacement and those who are bedridden for a long time have been developed relatively maturely. For patients in the early stage after hip replacement and those who need to be bedridden for a long time due to insufficient lower limb muscle strength or fractures, the hip and ankle joints are very likely to be externally rotated, which affects subsequent rehabilitation. During the period of bedridden patients after artificial hip replacement and other patients who need to be bedridden for a long time, such as patients with femoral neck fractures, the movement of the affected limb is limited, and external rotation is prone to occur, which affects the reconstruction of soft tissues and ligaments around the hip, thereby affecting the functional recovery of the hip joint and the treatment effect of the patient. In addition, long-term bed rest and long-term pressure on the bony protrusions such as the heel and the inner and outer ankles are prone to pressure injuries, which prolongs the patient's treatment time. Utility Model Content
[0003] In response to the technical problems in the prior art, the utility model provides an anti-rotation box, which helps fix the affected limb to keep it in an abducted neutral position to prevent external rotation, increase the anti-rotation effect, and reduce the risk of early pressure injuries and deep vein thrombosis of the lower limbs.
[0004] An anti-rotation box includes a box body, an airbag assembly arranged in sequence along the length direction of the box body, and a foot pad. The top of the box body and the two end faces of the box body in the width direction are open structures. The airbag assembly includes two array-type wedge-shaped airbags symmetrically arranged along the central axis of the length direction of the box body, and a first air pump and a second air pump pneumatically connected to the two array-type wedge-shaped airbags respectively.
[0005] Furthermore, a first Velcro is fixed to the bottom of the foot pad, and a second Velcro is fixedly connected to the corresponding positions of the box body and the foot pad, and the first Velcro and the second Velcro are detachably connected.
[0006] Furthermore, a first card slot and a second card slot are respectively fixed on two outer sides of the box body, and the first card slot and the second card slot are detachably connected.
[0007] Furthermore, it also includes a main control module, a display module arranged on the outer side of the box body, an inflation and deflation control module electrically connected to the main control module, and a first solenoid valve and a second solenoid valve that respectively control the inflation and deflation of the first air pump and the second air pump. The main control module is electrically connected to the display module, the inflation and deflation control module, the first air pump and the second air pump, and the inflation and deflation control module is electrically connected to the first solenoid valve and the second solenoid valve.
[0008] Furthermore, it also includes an infrared communication module and a remote controller communicatively connected to the infrared communication module, and the infrared communication module is electrically connected to the main control module.
[0009] Furthermore, the main control module is a single chip microcomputer.
[0010] Furthermore, the display module is an LCD touch screen.
[0011] Furthermore, the inflation and deflation control module includes a first ULN2803 drive circuit and a second ULN2803 drive circuit connected to the main control module, the first ULN2803 drive circuit is electrically connected to the first solenoid valve and the first air pump, and the second ULN2803 drive circuit is electrically connected to the second solenoid valve and the second air pump.
[0012] Furthermore, the infrared communication module is an infrared diode.
[0013] Furthermore, anti-friction gaskets are provided at the four corners of the bottom of the box body.
[0014] Compared with the prior art, the utility model has the following technical effects:
[0015] The utility model provides an anti-rotation box, wherein a first air pump and a second air pump inflate and deflate two array-type wedge-shaped air bags separately; a user places his calves between the two array-type wedge-shaped air bags, and according to the specific conditions of the user's legs, the first air pump and the second air pump are controlled to control the expansion degree and rigidity of the two array-type wedge-shaped air bags until the two array-type wedge-shaped air bags tighten and support the user's legs, while ensuring the user's comfort level and preventing the user's legs from rotating, thereby helping to fix the affected limb to keep it in an abducted neutral position to prevent external rotation, thereby increasing the anti-rotation effect and reducing the risk of early pressure injuries and deep vein thrombosis of the lower limbs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the overall structure of an anti-rotation box of the utility model;
[0018] Figure 2 The utility model is a schematic diagram of the connection relationship between the main control module, the inflation and deflation control module, the display module, etc. of the anti-rotation box.
[0019] Among them, 1. box body; 2. airbag assembly; 3. foot pad; 4. array wedge-shaped airbag; 5. first air pump; 6. second air pump; 7. first card slot; 8. second card slot. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.
[0021] like Figure 1 to Figure 2 The anti-rotation box shown in the figure comprises a box body 1, an airbag assembly 2 and a foot pad 3 which are arranged in sequence along the length direction of the box body 1, the foot pad 3 and the airbag assembly 2 are located on the same horizontal axis, the top of the box body 1 and the two end faces of the box body 1 in the width direction are open structures, the airbag assembly 2 comprises two array-type wedge-shaped airbags 4 which are symmetrically arranged along the central axis of the length direction of the box body 1, a first air pump 5 and a second air pump 6 which are pneumatically connected to the two array-type wedge-shaped airbags 4 respectively; the two array-type wedge-shaped airbags 4 are made of skin-friendly material to avoid abrasion of the user's skin; the first air pump 5 and the second air pump 6 are respectively connected to the two array-type wedge-shaped airbags 4 ... The air pump 6 inflates and deflates the two array-type wedge-shaped airbags 4 separately; the user places the calf between the two array-type wedge-shaped airbags 4, and according to the specific conditions of the user's legs, the first air pump 5 and the second air pump 6 are controlled to control the expansion degree and rigidity of the two array-type wedge-shaped airbags 4 until the two array-type wedge-shaped airbags 4 tighten and support the user's legs, while ensuring the user's comfort and preventing the user's legs from rotating, thereby helping to fix the affected limb to keep it in an abducted neutral position to prevent external rotation, increase the anti-rotation effect, and reduce the risk of early pressure injuries and deep vein thrombosis of the lower limbs.
[0022] Specifically, Figure 1 As shown, a first Velcro is fixed to the bottom of the foot pad 3, and a second Velcro is fixedly connected to the corresponding positions of the box body 1 and the foot pad 3, and the first Velcro and the second Velcro are detachably connected; after the patient places his calves on the two array-type wedge-shaped airbags 4, the patient's feet naturally hang on the foot pad 3, and the patient can also choose to remove or install the foot pad 3 according to the comfort level of his own feet, which is suitable for patients with different needs.
[0023] Specifically, Figure 1 As shown, the first card slot 7 and the second card slot 8 are respectively fixed on the two outer sides of the box body 1, and the first card slot 7 and the second card slot 8 are detachably connected; the first card slot 7 and the second card slot 8 are used to fix the first air pump 5 and the second air pump 6; thereby preventing the first air pump 5 and the second air pump 6 from being inconvenient to fix during the use and transportation of the box body 1, and facilitating the replacement and maintenance of the air pump.
[0024] Specifically, Figure 2 As shown, it also includes a main control module, a display module arranged on the outer side of the box body 1, an inflation and deflation control module electrically connected to the main control module, and a first solenoid valve and a second solenoid valve for respectively controlling the inflation and deflation of the first air pump 5 and the second air pump 6, the main control module is electrically connected to the display module, the inflation and deflation control module, the first air pump 5 and the second air pump 6, and the inflation and deflation control module is electrically connected to the first solenoid valve and the second solenoid valve; it also includes an infrared communication module and a remote control connected to the infrared communication module for communication, the infrared communication module is electrically connected to the main control module; the main control module is a single-chip microcomputer; the first solenoid valve and the second solenoid valve are respectively used to open or close the first air pump 5 and the second air pump 6, and control the inflation and deflation state of the first air pump 5 and the second air pump 6 according to the level state output to the first air pump 5 and the second air pump 6 by the inflation and deflation control module.
[0025] Specifically, Figure 2 As shown, the display module is an LCD touch screen; the user can control the operating mode of the device according to the LCD touch screen, and the LCD touch screen is used to display the inflation and deflation degree and status of the two array-type wedge-shaped airbags 4, which is convenient for users and medical staff to observe; patients and medical staff can control the inflation and deflation control module through the display module, and can also control the inflation and deflation control module through the remote control, thereby controlling the inflation and deflation degree and status of the two array-type wedge-shaped airbags 4.
[0026] Specifically, Figure 2 As shown, the inflation and deflation control module includes a first ULN2803 drive circuit and a second ULN2803 drive circuit connected to the main control module, the first ULN2803 drive circuit is electrically connected to the first solenoid valve and the first inflation pump 5, and the second ULN2803 drive circuit is electrically connected to the second solenoid valve and the second inflation pump 6; the first ULN2803 drive circuit and the second ULN2803 drive circuit are electrically connected to different IO ports of the single-chip microcomputer respectively, the output end of the first ULN2803 drive circuit is electrically connected to the first solenoid valve and the first inflation pump 5, and the output end of the second ULN2803 drive circuit is electrically connected to the second solenoid valve and the second inflation pump 6. After receiving the control signal of the single-chip microcomputer, the first ULN2803 drive circuit and the second ULN2803 drive circuit output a high level or a low level to control the inflation and deflation of the two array-type wedge-shaped airbags 4.
[0027] Specifically, Figure 2 As shown, the infrared communication module is an infrared diode; it is used to receive the infrared signal emitted by the remote control, and convert the infrared signal into an electrical signal and transmit it to the IO port of the single-chip microcomputer. After the signal is processed by the single-chip microcomputer, it is sent to the display module and the first ULN2803 driving circuit and the second ULN2803 driving circuit.
[0028] Specifically, anti-friction gaskets are provided at the four corners of the bottom of the box body 1 to prevent the box body 1 from moving and increase the stability of the device.
[0029] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.
Claims
1. An anti-rotation box, characterized in that: It includes a box body and an airbag assembly arranged along the length direction of the box body. The top of the box body and the two end faces of the box body in the width direction are open structures. The airbag assembly includes two array-type wedge-shaped airbags symmetrically arranged along the central axis of the length direction of the box body, and a first air pump and a second air pump pneumatically connected to the two array-type wedge-shaped airbags respectively.
2. The anti-rotation box according to claim 1, characterized in that: It also includes a foot pad that is arranged in the box body and is located on the same horizontal axis as the airbag assembly.
3. The anti-rotation box according to claim 1, characterized in that: A first card slot and a second card slot are respectively fixed on two outer sides of the box body, and the first card slot and the second card slot are detachably connected.
4. The anti-rotation box according to claim 1, characterized in that: It also includes a main control module, a display module arranged on the outer side of the box body, an inflation and deflation control module electrically connected to the main control module, and a first solenoid valve and a second solenoid valve that respectively control the inflation and deflation of the first air pump and the second air pump. The main control module is electrically connected to the display module, the inflation and deflation control module, the first air pump and the second air pump, and the inflation and deflation control module is electrically connected to the first solenoid valve and the second solenoid valve.
5. The anti-rotation box according to claim 4, characterized in that: It also includes an infrared communication module and a remote controller connected to the infrared communication module for communication. The infrared communication module is electrically connected to the main control module.
6. The anti-rotation box according to claim 4, characterized in that: The main control module is a single chip microcomputer.
7. The anti-rotation box according to claim 4, characterized in that: The display module is an LCD touch screen.
8. The anti-rotation box according to claim 4, characterized in that: The inflation and deflation control module includes a first ULN2803 drive circuit and a second ULN2803 drive circuit connected to the main control module, the first ULN2803 drive circuit is electrically connected to the first solenoid valve and the first inflation pump, and the second ULN2803 drive circuit is electrically connected to the second solenoid valve and the second inflation pump.
9. The anti-rotation box according to claim 5, characterized in that: The infrared communication module is an infrared diode.
10. The anti-rotation box according to claim 1, characterized in that: Anti-friction pads are arranged at the four corners of the bottom of the box body.