Patella loosening device

Abstract

The utility model discloses a patella loosening device, and belongs to the technical field of patella loosening devices. Comprising a supporting base, a positioning block, a sliding block, a connecting shaft, an adjusting plate and a first motor, an inclined face is arranged at one end of the supporting base, the positioning block is arranged at the top of the inclined face, a sliding groove is formed in the side, away from the inclined face, of the positioning block, the sliding block is slidably connected into the sliding groove, and connecting rods are fixedly connected to the two opposite sides of the sliding block; the end, away from the connecting rod, of the adjusting plate is hinged to the supporting base. According to the utility model, the first motor is started to drive the adjusting plate to perform angular motion, so that the lower joint of a patient can perform passive motion along with the adjusting plate, the patella and knee joint of the patient can perform angular motion, the actual motion state of the joint in daily activities can be better simulated, and the degree of relaxation of the joint is comprehensively improved; the rehabilitation effect is improved.

Description

Technical Field

[0001] This utility model relates to a patellar mobilizer, belonging to the technical field of patellar mobilizers. Background Technology

[0002] After knee surgery, patients are prone to significant reduction in patellar mobility due to knee joint adhesions. Patellar mobilization is an effective treatment for improving patellar mobility and reducing knee joint adhesions. Therefore, patients often need patellar mobilization for rehabilitation after knee surgery. However, existing patellar mobilizers can only perform linear reciprocating relaxation movements on the distal joint in actual use, and cannot adjust the angle of the distal joint. This makes it difficult to comprehensively improve the angular mobility of the patella and joint. Because it cannot provide angular movement, the distal joint and patella may not receive sufficient adaptive training, resulting in incomplete functional recovery of the joint capsule and ligaments, thus reducing the rehabilitation effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a patellar mobilizer, which solves the problem in the prior art that the inferior joint and patella may not be able to get sufficient adaptive training, resulting in incomplete functional recovery of the joint capsule and ligaments and reduced rehabilitation effect.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: it includes a support base, a positioning block, a sliding block, a connecting shaft, an adjusting plate, and a first motor. One end of the support base is provided with an inclined surface, and the positioning block is provided on the inclined surface. A sliding groove is provided on the side of the positioning block away from the inclined surface. The sliding block is slidably disposed inside the sliding groove. Connecting rods with ends that pass through the positioning block are fixedly connected to the opposite sides of the sliding block. The two ends of the connecting shaft are respectively hinged to the ends of the connecting rods and the adjusting plate. The end of the adjusting plate away from the connecting rods is hinged to the support base. The first motor is fixedly installed on the outside of the positioning block. The output end of the first motor is poweredly connected to a first threaded rod. The first threaded rod is rotatably connected to the positioning block. One end of the first threaded rod passes through the sliding block and is threadedly connected to the sliding block.

[0005] By adopting the above technical solution, the first motor can drive the adjustment plate to move at an angle, thereby causing the patient's lower joint to move passively following the adjustment plate. This allows the patient's patella and knee joint to move at an angle, better simulating the actual movement state of the joints in daily activities, comprehensively improving joint relaxation and enhancing rehabilitation effects.

[0006] The present invention is further configured such that: two mounting plates are fixedly installed at the bottom of the support base, and a connecting piece for fixing and clamping the mounting plates is provided on one side of the two mounting plates.

[0007] By adopting the above technical solution, the mounting plate and connectors provide installation limits for the entire device, ensuring that the equipment will not move arbitrarily during use.

[0008] The present invention is further configured such that: a baffle is provided on the top of the positioning block, the baffle closing the sliding groove. A positioning piece is fixedly installed on the side of the baffle facing the sliding block, and the positioning piece abuts against the sliding block.

[0009] By adopting the above technical solution, the sliding groove can be sealed by a baffle, effectively preventing dust, debris and other foreign objects from entering the sliding groove.

[0010] The present invention is further configured such that: a guide groove is provided on the top of the support base, a guide block is slidably connected to the inner wall of the guide groove, a support pad is fixedly connected to the top of the guide block away from the guide groove, a second motor is fixedly installed on the outer surface of the support base, a second threaded rod is poweredly connected to the output end of the second motor, and one end of the second threaded rod passes through the guide block and is threadedly connected to the guide block.

[0011] By adopting the above technical solution, the second motor is activated to drive the support pad to move, which in turn drives the knee joint to perform reciprocating linear motion, providing uninterrupted treatment for the patient and making it more conducive to the recovery of the patient's joint function.

[0012] The present invention is further configured such that the restraint strap and the other side of the support pad are detachably connected.

[0013] By adopting the above technical solution, the restraint belt can fix the position of the patient's joints and prevent them from slipping off the support pad when relaxed.

[0014] The beneficial effects of this utility model are as follows: By starting the first motor, the first threaded rod is driven to move forward, causing the first threaded rod to drive the sliding block to slide inside the sliding groove. Then, the sliding block drives the first connecting rod to rotate, and then the first connecting rod drives the connecting shaft to rotate. Then, the connecting shaft cooperates with the adjusting plate, causing it to drive the adjusting plate to move upward, thereby adjusting the angle of the adjusting plate. This enables flexion training of the patient's lower joint. By adjusting the adjusting plate to a suitable angle, the range of motion of patellar flexion and extension training can be increased, which can specifically improve joint mobility and enhance rehabilitation effects. The tilt surface is set to 130 degrees, which conforms to the ergonomic principle. When the patient places the lower leg joint on the adjusting plate, this tilt angle allows the knee joint to be in a more natural and comfortable position, avoiding excessive stretching or compression of the joint due to an unreasonable support surface. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2This is a three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the support base of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the first motor of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the baffle of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the second motor of this utility model.

[0021] In the diagram: 1. Support base; 2. Sliding groove; 3. Sliding block; 4. Connecting shaft; 5. Adjusting plate; 6. First motor; 7. Second motor; 101. Positioning block; 102. Mounting plate; 103. Limiting bolt; 104. Guide groove; 105. Guide block; 106. Support pad; 107. Inclined surface; 301. Connecting rod; 601. First threaded rod; 1011. Baffle; 1012. Positioning piece; 701. Second threaded rod; 1061. Restraint strap. Detailed Implementation

[0022] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0023] like Figures 1 to 6 As shown, the device includes a support base 1, a positioning block 101, a sliding block 3, a connecting shaft 4, an adjusting plate 5, and a first motor 6. One end of the support base 1 is provided with an inclined surface 107. The positioning block 101 is disposed on the inclined surface 107. A sliding groove 2 is provided on the side of the positioning block 101 away from the inclined surface 107. The sliding block 3 is slidably disposed inside the sliding groove 2. Connecting rods 301 with ends that pass through the positioning block 101 are fixedly connected to the opposite sides of the sliding block 3. The two ends of the connecting shaft 4 are respectively hinged to the ends of the connecting rods 301 and the adjusting plate 5. The end of the adjusting plate 5 away from the connecting rods 301 is hinged to the support base 1. The first motor 6 is fixedly installed on the outside of the positioning block 101. The output end of the first motor 6 is poweredly connected to a first threaded rod 601. The first threaded rod 601 is rotatably connected to the positioning block 101. One end of the first threaded rod 601 passes through the sliding block 3 and is threadedly connected to the sliding block 3.

[0024] like Figure 3 Two mounting plates 102 are fixedly installed on the bottom of the support base 1 shown. One side of the two mounting plates 102 is provided with a connector for fixing and clamping the mounting plates 102.

[0025] like Figure 5A baffle 1011 is provided on the top of the positioning block 101, which closes the sliding groove 2. A positioning piece 1012 is fixedly installed on the side of the baffle 1011 facing the sliding block 3, and the positioning piece 1012 abuts against the sliding block 3.

[0026] like Figure 3 The top of the support base 1 is provided with a guide groove 104. A guide block 105 is slidably connected to the inner wall of the guide groove 104. A support pad 106 is fixedly connected to the top of the guide block 105 away from the guide groove 104. A second motor 7 is fixedly installed on the outer surface of the support base 1. A second threaded rod 701 is poweredly connected to the output end of the second motor 7. The axial direction of the second motor 7 is the same as the sliding direction of the guide block 105. One end of the second threaded rod 701 passes through the guide block 105 and is threadedly connected to the guide block 105.

[0027] When it is necessary to relax the lower joint angle of the patient, the medical staff places the patient's lower leg on the adjustment plate 5. The first motor 6 is started to drive the first threaded rod 601 to move forward, which causes the sliding block 3 to slide inside the sliding groove 2. Then the sliding block 3 drives the first connecting rod 301 to rotate, and then the first connecting rod 301 drives the connecting shaft 4 to rotate. Then the connecting shaft 4 cooperates with the adjustment plate 5 to drive the adjustment plate 5 to move upward, thereby adjusting the angle of the adjustment plate 5, thus realizing the flexion training of the patient's lower joint. By adjusting the adjustment plate 5 to a suitable angle, the range of motion of patellar flexion and extension training can be increased, and joint mobility can be improved in a targeted manner to enhance the rehabilitation effect. The tilt surface 107 is set to 130 degrees, which conforms to the ergonomic principle. When the patient places the lower leg joint on the adjustment plate 5, this tilt angle allows the knee joint to be in a more natural and comfortable position, avoiding excessive stretching or compression of the joint due to an unreasonable support surface.

[0028] The mounting plate 102 is installed on the support base 1 in a suitable position, and then the position of the device is limited by rotating the limiting bolt 103.

[0029] By sealing the sliding groove 2 with baffle 1011, external foreign objects such as dust and debris can be effectively prevented from entering the interior of the sliding groove 2, thus extending the service life of the equipment.

[0030] Both the support pad 106 and the restraint strap 1061 are made of soft materials, which can improve the patient's comfort during training. Medical staff first place the patient's knee joint on the support pad 106, and then start the second motor 7 to drive the second threaded rod 701 to move forward and backward, which drives the guide block 105 to move back and forth inside the guide groove 104. Then the guide block 105 drives the support pad 106 to move synchronously, and at the same time drives the knee joint to move back and forth in a linear motion, providing uninterrupted treatment for the patient and making it more conducive to the recovery of the patient's joint function. Since different patients have different body shapes and joint sizes, the detachable restraint strap 1061 can flexibly adjust the tightness and fixation position according to the actual situation, so as to better fit the joints of each patient.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A patellar mobilizing device, characterized in that: The system includes a support base (1), a positioning block (101), a sliding block (3), a connecting shaft (4), an adjusting plate (5), and a first motor (6). One end of the support base (1) has an inclined surface (107). The positioning block (101) is positioned on the inclined surface (107). A sliding groove (2) is formed on the side of the positioning block (101) away from the inclined surface (107). The sliding block (3) is slidably disposed inside the sliding groove (2). Connecting rods, whose ends pass through the positioning block (101), are fixedly connected to the opposite sides of the sliding block (3). 301), the two ends of the connecting shaft (4) are respectively hinged to the end of the connecting rod (301) and the adjusting plate (5). The end of the adjusting plate (5) away from the connecting rod (301) is hinged to the support base (1). The first motor (6) is fixedly installed on the outside of the positioning block (101). The output end of the first motor (6) is poweredly connected to the first threaded rod (601). The first threaded rod (601) is rotatably connected to the positioning block (101). One end of the first threaded rod (601) passes through the sliding block (3) and is threadedly connected to the sliding block (3).

2. The patellar mobilizer according to claim 1, characterized in that: Two mounting plates (102) are fixedly installed at the bottom of the support base (1), and a connector for fixing and clamping the mounting plates (102) is provided on one side of the two mounting plates (102).

3. The patellar mobilizer according to claim 1, characterized in that: The top of the positioning block (101) is provided with a baffle (1011), which closes the sliding groove (2).

4. The patellar mobilizer according to claim 3, characterized in that: A positioning piece (1012) is fixedly installed on the side of the baffle (1011) facing the sliding block (3), and the positioning piece (1012) abuts against the sliding block (3).

5. The patellar mobilizer according to claim 1, characterized in that: The top of the support base (1) is provided with a guide groove (104), and a guide block (105) is slidably connected to the inner wall of the guide groove (104). A support pad (106) is fixedly connected to the top of the guide block (105) away from the guide groove (104). A second motor (7) is fixedly installed on the outer surface of the support base (1). The output end of the second motor (7) is poweredly connected to a second threaded rod (701). One end of the second threaded rod (701) passes through the guide block (105) and is threadedly connected to the guide block (105).

6. The patellar mobilizer according to claim 5, characterized in that: A restraint strap (1061) is fixedly connected to one side of the support pad (106), and the restraint strap (1061) is detachably fixedly connected to the other side of the support pad (106).

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