Knee joint positioning auxiliary device

Abstract

The invention discloses a knee joint positioning auxiliary device which comprises a box body, a height adjusting mechanism, a horizontal deviation mechanism, a vertical deviation mechanism and a clamping mechanism. Height adjusting mechanisms are arranged at the bottom of the box; a horizontal offset mechanism and a vertical offset mechanism are rotationally connected above the height adjusting mechanism; a clamping mechanism is arranged at the top; the height adjusting mechanism comprises a base, a crank, a lifting motor, a lifting screw rod, a support and a rotating rod; the base is fixedly connected with the bottom of the box body and symmetrically provided with rotating rods; the rotating rod is rotationally connected with one end of the crank; the tail end of the crank is rotationally connected with the angle adjusting mechanism; a hole is formed in the center of the support; an output shaft of the lifting motor is fixedly connected with a lifting screw; the lifting screw is in threaded connection with the two supports and penetrates through the supports; the device can be lifted according to the requirements of patients and the treatment requirements of medical staff, so that the device reaches the optimal height.

Description

Technical Field

[0001] The invention belongs to the technical field of medical auxiliary equipment, and in particular relates to a knee joint positioning auxiliary device. Background Art

[0002] The knee joint is composed of the lower end of the femur, the upper end of the tibia and the patella. It is one of the largest and most complex joints in the human body. Its stability and flexibility are essential for daily activities. However, due to various factors such as age, sports injuries, and diseases (such as osteoarthritis, meniscus injuries, ligament tears, etc.), the knee joint often suffers from pain, swelling, limited function, etc., which affect the patient's quality of life. Traditional Chinese medicine orthopedics emphasizes the holistic concept and syndrome differentiation and treatment, and focuses on treating diseases by adjusting the balance of qi, blood, meridians, etc. in the human body. In the treatment of knee joint injuries, traditional Chinese medicine not only focuses on structural injuries such as fractures and dislocations, but also pays attention to soft tissue injuries, qi and blood stasis, meridian blockage and other problems. Therefore, when treating knee joint injuries, traditional Chinese medicine orthopedics often uses a combination of methods such as manual reduction, fixation, oral and external use of Chinese medicine, acupuncture and massage for comprehensive treatment;

[0003] In the prior art, when the positioning device for the knee joint is used, since the clamping and fixing device for the knee joint is a rigid device, when the patients have knee joints of different sizes and thicknesses, it cannot be fixed according to various knee joints, and it cannot be raised or lowered according to the needs of the patients and the needs of treatment, so the application range of the device is too small;

[0004] Therefore, it is necessary to provide a knee joint positioning auxiliary device that can be flexibly fixed and adjusted according to different conditions of the patient's knee, and can be raised and lowered according to the needs of the patient and the needs of treatment, so as to better meet the needs of patients and medical staff. Summary of the invention

[0005] In order to solve the above technical problems, the present invention designs a knee joint positioning auxiliary device, which adds an adjustable pressing piece to the clamping mechanism, and the clamping mechanism is threadedly connected. By twisting the knob, it can be adjusted according to the size of the patient's knee, and the pressing force can also be adjusted according to needs; at the same time, a height adjustment mechanism is set at the bottom of the device, which can be raised and lowered according to the needs of the patient and the treatment needs of medical staff, so that the device reaches the optimal height;

[0006] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: a knee joint positioning auxiliary device, comprising: a box, a height adjustment mechanism, a horizontal offset mechanism, a vertical offset mechanism, and a clamping mechanism;

[0007] A height adjustment mechanism is arranged at the bottom of the box; the height adjustment mechanism is rotatably connected to a horizontal offset mechanism above; the horizontal offset mechanism passes through the box and is rotatably connected to a vertical offset mechanism; a clamping mechanism is arranged at the top of the vertical offset mechanism;

[0008] The height adjustment mechanism comprises: a base, a crank, a lifting motor, a lifting screw, a support, and a rotating rod; the base is fixedly connected to the bottom of the box, and the rotating rod is symmetrically arranged on the base; the rotating rod is rotatably connected to one end of the crank; the middle part of the crank is rotatably connected to the support, and the end of the crank is rotatably connected to the angle adjustment mechanism; a hole is opened in the center of the support, and a lifting motor is arranged on the side of one side of the support; the output shaft of the lifting motor is fixedly connected to the lifting screw; the lifting screw is threadedly connected to the two supports and penetrates the supports;

[0009] Furthermore, the threads on the two supports have opposite rotation directions and the same pitch;

[0010] Furthermore, the horizontal offset mechanism includes a base plate, a steering motor, a threaded seat, a push rod, a rack, a gear 1, a gear seat, a limit sleeve, and a rotating rod; a rotating shaft is arranged on the base plate to rotatably connect with a crank, gear seats are arranged on both sides above the base plate, and a threaded seat is arranged next to the gear seat on one side; a steering motor is arranged at the front end of the threaded seat; the output shaft of the steering motor is connected with the push rod; the front end of the push rod is movably connected with the rack, and the push rod is threadedly connected with the threaded seat; a limit sleeve is arranged on one side of the gear seat to slide and connect with the rack; a gear 1 is arranged at one end of the rotating rod to mesh with the rack, and the rotating rod is rotatably connected with the gear seat;

[0011] Furthermore, the second gear in the vertical offset mechanism is fixedly connected to the gear seat, is rotationally connected to the rotating rod, and is symmetrically cross-arranged with the horizontal offset mechanism about the rotating rod, and the rest of the structure is the same as the horizontal offset mechanism;

[0012] Furthermore, the rotating rods of the vertical offset mechanism and the horizontal offset mechanism are fixedly connected;

[0013] Furthermore, the clamping mechanism includes a clamping seat, a connecting plate, a pressing plate, and a knob; the clamping seat is fixedly connected to the bottom plate of the vertical offset mechanism, and the clamping seat is rotatably connected to the connecting plate; a threaded hole is provided in the middle of the connecting plate to connect the knob; and a pressing plate is provided at the front end of the knob.

[0014] The beneficial effects of the present invention are:

[0015] The present invention uses a pressing piece threadedly connected to a connecting plate, and by turning a knob, the pressing piece is made to be close to the knee joint of the patient, and can be adjusted according to the knee conditions of different patients, and the clamping force can be adjusted during clamping;

[0016] At the same time, a vertical offset mechanism, a horizontal offset mechanism and a height adjustment mechanism are respectively provided at the bottom, which can be offset horizontally and vertically according to the needs of treatment and the needs of the patient, and the overall height of the device can also be adjusted to make the device more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0018] Figure 1 It is a schematic diagram of the overall structure of a knee joint positioning auxiliary device;

[0019] Figure 2 is a cross-sectional view of a knee joint positioning aid;

[0020] Figure 3 It is a schematic diagram of an offset mechanism and a clamping mechanism of a knee joint positioning auxiliary device;

[0021] Figure 4 It is a schematic diagram of the structure of a height adjustment mechanism of a knee joint positioning auxiliary device;

[0022] Figure 5 The present invention is a schematic diagram of the connection between a push rod and a rack of a knee joint positioning auxiliary device;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-box, 2-clamping mechanism, 201-knob, 202-clamping seat, 203-connecting plate, 204-pressing plate, 3-horizontal offset mechanism, 301-bottom plate, 302-steering motor, 303-threaded seat, 304-rack, 305-gear seat, 306-gear one, 307-rotating rod, 308-push rod, 309-rotating shaft, 310-limiting sleeve, 4-height adjustment mechanism, 401-lifting motor, 402-support, 403-crank, 404-base, 405-lifting screw, 5-vertical offset mechanism, 501-gear two. DETAILED DESCRIPTION

[0025] The present invention discloses a knee joint positioning auxiliary device, comprising: a box body 1, a height adjustment mechanism 4, a horizontal offset mechanism 3, a vertical offset mechanism, and a clamping mechanism 2; the height adjustment mechanism 4 is arranged at the bottom of the box body 1; the top of the height adjustment mechanism 4 is rotatably connected to the horizontal offset mechanism 3; the horizontal offset mechanism 3 passes through the box body 1 and is rotatably connected to the vertical offset mechanism; the clamping mechanism 2 is arranged at the top of the vertical offset mechanism; the height adjustment mechanism 4 comprises: a base 404, a crank 403, a lifting motor 401, a lifting screw 405, a support 402, and a rotating rod 307; the base 404 is fixedly connected to the bottom of the box body 1, and the top of the base 404 is connected to the bottom of the box body 1. The rotating rod 307 is symmetrically arranged; the rotating rod 307 is rotatably connected to one end of the crank 403; the middle part of the crank 403 is rotatably connected to the support 402, and the end of the crank 403 is rotatably connected to the angle adjustment mechanism; a hole is provided in the center of the support 402, and a lifting motor 401 is arranged on the side of one side of the support 402; the output shaft of the lifting motor 401 is fixedly connected to the lifting screw 405; the lifting screw 405 is threadedly connected to the two supports 402 and penetrates the support 402; the lifting motor 401 rotates to drive the two supports 402 to move relative to each other, so that the device can be lifted and lowered according to the needs of the patient and the treatment needs of the medical staff, so that the device reaches the optimal height;

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] like Figure 2 , 4 As shown, a height adjustment mechanism 4 is provided at the bottom of the box body 1; the height adjustment mechanism 4 is rotatably connected to a horizontal offset mechanism 3 above; the horizontal offset mechanism 3 passes through the box body 1 and is rotatably connected to a vertical offset mechanism; a clamping mechanism 2 is provided at the top of the vertical offset mechanism; the height adjustment mechanism 4 includes: a base 404, a crank 403, a lifting motor 401, a lifting screw 405, a support 402, and a rotating rod 307; the base 404 is fixedly connected to the bottom of the box body 1, and a rotating rod 307 is symmetrically provided on the base 404 Rod 307; the rotating rod 307 is rotatably connected to one end of a crank 403; the middle of the crank 403 is rotatably connected to the support 402, and the end of the crank 403 is rotatably connected to the angle adjustment mechanism; a hole is provided in the center of the support 402, and a lifting motor 401 is provided on the side of one side of the support 402; the output shaft of the lifting motor 401 is fixedly connected to the lifting screw 405; the lifting screw 405 is threadedly connected to the two supports 402 and penetrates the supports 402; the threads on the two supports 402 have opposite rotation directions and the same pitch;

[0029] In this embodiment, the working principle of the height adjustment mechanism 4 is as follows: the lifting motor 401 rotates to drive the lifting screw 405 to rotate. After the lifting screw 405 rotates, the two supports 402 move closer or farther relative to each other because the threads of the two supports 402 rotate in opposite directions. Under the support and limit of the crank 403, the device can only move up and down, thereby achieving the purpose of adjusting the height of the device. This solves the problem that the prior art cannot perform lifting and lowering adjustment according to the needs of the patient and the needs of treatment, which makes the application range of the device too small.

[0030] In this embodiment, the height adjustment mechanism 4 allows medical staff to adjust the device according to the patient's height and the height of the treatment bed to ensure the accuracy of knee joint positioning and the comfort of treatment. The height adjustment mechanism 4 enables the device to be adjusted to the optimal position according to the needs of treatment or surgery, thereby providing a more suitable knee joint angle to facilitate precise surgical operations or treatments. Through the height adjustment mechanism 4, the patient can adjust the height of the device according to his or her own comfort to reduce discomfort during treatment. The height adjustment mechanism 4 enables the knee joint positioning auxiliary device to adapt to more treatment scenarios and needs, increasing the flexibility and practicality of the device.

[0031] Example 2

[0032] like Figure 3 , 5 As shown, the horizontal offset mechanism 3 includes a base plate 301, a steering motor 302, a threaded seat 303, a push rod 308, a rack 304, a gear 306, a gear seat 305, a limit sleeve 310, and a rotating rod 307; a rotating shaft 309 is arranged on the base plate 301 to be rotatably connected to the crank 403, gear seats 305 are arranged on both sides above the base plate 301, and a threaded seat 303 is arranged next to the gear seat 305 on one side; a steering motor 302 is arranged at the front end of the threaded seat 303; the output shaft of the steering motor 302 is connected to the push rod 308; The front end of the rod 308 is movably connected to the rack 304, and the push rod 308 is threadedly connected to the threaded seat 303; a limit sleeve 310 is provided on one side of the gear seat 305 to be slidably connected to the rack 304; a gear 1 306 is provided at one end of the rotating rod 307 to engage the rack 304, and the rotating rod 307 is rotatably connected to the gear seat 305; the gear 2 501 in the vertical offset mechanism 5 is fixedly connected to the gear seat 305, is rotatably connected to the rotating rod 307, and is symmetrically cross-arranged with the horizontal offset mechanism 3 about the rotating rod 307, and the rest of the structure is the same as the horizontal offset mechanism

[0033] In this embodiment, the working principle of the horizontal offset mechanism 3 is as follows: the steering motor 302 rotates to drive the push rod 308 to rotate. Since the push rod 308 is threadedly connected to the threaded seat 303, the push rod 308 rotates to move forward and backward; the push rod 308 moves to push or pull the rack 304 to move forward and backward, and the forward and backward movement of the rack 304 drives the gear 1 306 meshing therewith to rotate, and the rotation of the gear 1 306 drives the rotating rod 307 to rotate, thereby achieving the purpose of offsetting in the horizontal direction. At the same time, the limiting sleeve 310 set on the top of the rack 304 makes the meshing of the rack 304 and the gear 1 306 more stable;

[0034] In this embodiment, the vertical offset mechanism 5 rotates through the steering motor 302 to drive the push rod 308 to rotate. Since the push rod 308 and the threaded seat 303 are threadedly connected, the push rod 308 moves forward and backward when it rotates; the push rod 308 pushes or pulls the rack 304 to move forward and backward, and the rack 304 meshes with the gear 2, so that the gear 2 501 and the gear seat 305 rotate along the rotating rod through the reaction force, thereby achieving the vertical offset of the device;

[0035] In this embodiment, the offset mechanism allows the device to be fine-tuned in the horizontal and vertical directions to ensure that any part of the knee joint can be accurately positioned and fixed to facilitate precise treatment or surgery. Through the horizontal and vertical offset mechanisms, medical staff can adjust the device according to the patient's body shape and the specific position of the knee joint to achieve the best fixation effect. The design of the offset mechanism enables the knee joint positioning assist device to be used in a variety of treatment methods, such as manual reduction, fixation, rehabilitation training, etc., thereby enhancing the versatility of the device.

[0036] Example 3

[0037] like Figure 1 , 3 As shown, the clamping mechanism 2 includes a clamping seat 202, a connecting plate 203, a pressing piece 204, and a knob 201; the clamping seat 202 is fixedly connected to the bottom plate 301 of the vertical offset mechanism, and the clamping seat 202 is rotatably connected to the connecting plate 203; a threaded hole is provided in the middle of the connecting plate 203 to connect the knob 201; a pressing piece 204 is provided at the front end of the knob 201;

[0038] In this embodiment, when the clamping mechanism 2 is used, after the patient places the knee joint on the clamping seat 202 and adjusts it, the connecting plate 203 is covered on the knee joint and fixed, and then the patient's knee joint is pressed downward by rotating the knob 201-type pressing piece 204, so that the patient's knee joint can be fixed; this solves the problem in the prior art that when the knee joints of patients have different sizes and thicknesses, the fixation cannot be performed according to the size of the knee joint;

[0039] In this embodiment, gel pads are provided on the clamping seat 202 and the pressing sheet 204 to improve the patient's comfort, reduce pressure points, and protect the soft tissue around the knee joint;

[0040] In this embodiment, the clamping mechanism 2 allows personalized adjustment according to the size and shape of the patient's knee joint through the adjustable pressing plate 204 and the knob 201 to ensure stable and comfortable clamping, and allows the pressure of the pressing plate 204 to be adjusted through the knob 201 to adapt to different treatment needs and patient comfort. The soft pad or gel pad equipped with the clamping mechanism 2 can reduce pressure points and improve the overall comfort of the patient.

[0041] In summary, the present invention uses the pressing sheet 204 threadedly connected to the connecting plate 203, and by turning the knob 201, the pressing sheet 204 is made to be close to the patient's knee joint, so that the pressing sheet 204 can be adjusted according to the knee conditions of different patients, and the clamping force can be adjusted during clamping;

[0042] At the same time, a vertical offset mechanism, a horizontal offset mechanism 3 and a height adjustment mechanism 4 are respectively arranged at the bottom, which can perform horizontal and vertical offsets according to the needs of treatment and the needs of patients, and can also adjust the overall height of the device to make the device more applicable.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A knee joint positioning auxiliary device, characterized in that: include: Box body, height adjustment mechanism, horizontal offset mechanism, vertical offset mechanism, clamping mechanism; A height adjustment mechanism is arranged at the bottom of the box; the height adjustment mechanism is rotatably connected to a horizontal offset mechanism above; the horizontal offset mechanism passes through the box and is rotatably connected to a vertical offset mechanism; a clamping mechanism is arranged at the top of the vertical offset mechanism; The height adjustment mechanism comprises: a base, a crank, a lifting motor, a lifting screw, a support, and a rotating rod; the base is fixedly connected to the bottom of the box, and the rotating rods are symmetrically arranged on the base; The rotating rod is rotatably connected to one end of the crank; the middle part of the crank is rotatably connected to the support, and the end of the crank is rotatably connected to the angle adjustment mechanism; a hole is opened in the center of the support, and a lifting motor is arranged on one side of the support; the output shaft of the lifting motor is fixedly connected to the lifting screw; the lifting screw is threadedly connected to the two supports and penetrates the supports.

2. A knee joint positioning auxiliary device according to claim 1, characterized in that: The threads on the two supports have opposite rotation directions and the same pitch.

3. A knee joint positioning auxiliary device according to claim 1, characterized in that: The horizontal offset mechanism includes a base plate, a steering motor, a threaded seat, a push rod, a rack, a gear, a gear seat, a limit sleeve, and a rotating rod; a rotating shaft 309 is arranged on the base plate to be rotatably connected to a crank, gear seats are arranged on both sides above the base plate, and a threaded seat is arranged next to the gear seat on one side; a steering motor is arranged at the front end of the threaded seat; the output shaft of the steering motor is connected to the push rod; the front end of the push rod is movably connected to the rack, and the push rod is threadedly connected to the threaded seat; a limit sleeve is arranged on one side of the gear seat to be slidably connected to the rack; a gear is arranged at one end of the rotating rod to mesh with the rack, and the rotating frame is rotatably connected to the gear seat.

4. A knee joint positioning auxiliary device according to claim 3, characterized in that: The vertical offset mechanism is symmetrically arranged crosswise with the horizontal offset mechanism about the rotating rod, and its structural form and working principle are the same as those of the horizontal offset mechanism.

5. The knee joint positioning auxiliary device according to claim 3, characterized in that: The rotating rods of the vertical offset mechanism and the horizontal offset mechanism are fixedly connected.

6. The knee joint positioning auxiliary device according to claim 1, characterized in that: The clamping mechanism includes a clamping seat, a connecting plate, a pressing piece, and a knob; the clamping seat is fixedly connected to the bottom plate of the vertical offset mechanism, and the clamping seat is rotatably connected to the connecting plate; a threaded hole is provided in the middle of the connecting plate to connect the knob; and a pressing piece is provided at the front end of the knob.

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