Knee joint postoperative rehabilitation training system

Abstract

The invention provides a knee joint postoperative rehabilitation training system which comprises a closed garment and a second connecting piece, the cross section of the closed garment and the cross section of the second connecting piece are semicircular, the closed garment and the second connecting piece are directly connected through a hinge piece, and a first sliding groove and a second sliding groove are formed in the side face of the closed garment and the side face of the second connecting piece respectively. A first sliding block and a second sliding block are arranged in the first sliding groove and the second sliding groove respectively, a telescopic air cylinder is hinged between the first sliding block and the second sliding block, and the closed clothes and the second connecting piece are provided with closed clothes so that the closed clothes and the second connecting piece can be matched with the closed clothes and the second connecting piece to form trouser legs. Leg supporting wearing is provided for a knee joint surgery patient, the telescopic air cylinder is used for stretching out and drawing back to assist the closing clothes and the second connecting piece to conduct position change, data are sent to the processor through the angle sensor and the track sensor, and the processor analyzes the data and then adjusts the movement of the telescopic air cylinder so as to adapt to the user.

Description

Technical Field

[0001] The present invention relates to the field of rehabilitation training, and particularly to a postoperative rehabilitation training system for the knee joint. Background Art

[0002] Total knee arthroplasty (TKA) is one of the most cost-effective and continuously successful surgeries in orthopedics. Patient-reported outcomes show significant improvements in pain relief, functional recovery, and quality of life. TKA provides reliable results for patients with end-stage, three-compartment degenerative osteoarthritis (OA). Although OA affects millions of Americans, the knee joint is the most affected by this progressive disease, which is characterized by the gradual degeneration and loss of articular cartilage;

[0003] In a retrospective study of 121,657 patients who underwent TKA surgery, the infection rate was approximately 2% at 4 years after surgery. Some patients need to undergo secondary revision surgery for various reasons after the primary replacement surgery. The most common reason is aseptic loosening of the prosthesis, accounting for more than 30%; secondly, revisions caused by knee joint infection account for 20% of all primary replacement cases; other reasons for revision mainly include postoperative pain, especially patellofemoral joint pain, joint instability, and joint stiffness, etc.;

[0004] The research on wearable exoskeleton robots has been very popular in recent years, especially lower limb exoskeleton robots; there are two common types of lower limb exoskeleton robots, namely rigid exoskeleton robots and soft exoskeleton robots. Soft exoskeletons are made of soft materials and are relatively lightweight. However, this also limits their assisting ability. Rigid exoskeletons usually consist of hard linkages, and their rotation centers are aligned with the corresponding biological joints of the user to provide auxiliary torque. Since they can provide a supporting effect, such robots are more suitable for patients with walking difficulties;

[0005] However, currently, these machine assistances actually only assist in walking, and do not record actual data and adapt to robots at each stage. Summary of the Invention

[0006] The problem to be solved by the present invention is to provide a postoperative rehabilitation training system for the knee joint that can be easily worn by users while also monitoring the health records of users and making changes in view of the above-mentioned deficiencies in the prior art.

[0007] To achieve the above object, the present invention adopts the following technical solution: A postoperative rehabilitation training system for the knee joint,

[0008] It includes a first connecting piece and a second connecting piece. The cross-sections of the first connecting piece and the second connecting piece are both semi-circular arcs. The first connecting piece and the second connecting piece are directly connected by a hinge piece. First chutes and second chutes are respectively arranged on the sides of the first connecting piece and the second connecting piece. A first slider and a second slider are respectively arranged in the first chute and the second chute. A telescopic air cylinder is hinged between the first slider and the second slider. A closing garment is arranged on the first connecting piece and the second connecting piece so that the first connecting piece and the second connecting piece cooperate with it to form a trouser leg.

[0009] Further, a power supply, a processor, an angle sensor and a trajectory sensor are arranged on the closing garment. The processor is connected to the power supply, the angle sensor and the trajectory sensor. The angle sensor is used to test the angle change between the first connecting piece and the second connecting piece. The trajectory sensor is arranged inside the telescopic air cylinder to test the telescopic trajectory change of the telescopic air cylinder.

[0010] Further, a first airbag is arranged inside the closing garment. The first airbag is connected to a pressure measuring tube. The pressure measuring tube is connected to a pressure sensor arranged on the closing garment. The pressure sensor is connected to the processor. The first airbag is provided with a first air nozzle. The first air nozzle is connected to the pressure sensor.

[0011] Further, a plurality of connecting lines are arranged inside the closing garment. The two ends of the connecting lines are respectively connected to the processor and the angle sensor. A circular shell is arranged at the end of the connecting line. The angle sensor is arranged inside the circular shell. The closing garment has a left front piece and a right front piece. A door gap is formed between the left front piece and the right front piece. A plurality of longitudinal card holes with plastic deformation ability are arranged on one side of the right front piece adjacent to the left front piece. A card slot is arranged on the inner wall of the card hole. When the circular shell is located in the card slot, the left front piece and the right front piece form a door flap. The connecting line is located on the left front piece.

[0012] Further, a strip-shaped piece is arranged on the right front piece. The card holes are arranged on the strip-shaped piece and arranged longitudinally. A groove is arranged on the strip-shaped piece. The groove extends into the card hole. The connecting line is in interference fit with the groove.

[0013] Further, a rewinder of the prior art is arranged inside the right front piece. A part of the connecting line is wound around the rewinder. A connecting part is arranged on the connecting line. The connecting part is connected to the first airbag.

[0014] Further, a chute is provided on the connecting line, and a sliding member is sleeved on the chute. The sliding member includes a ring and a cone connected to each other. The connecting line internally contains a wire for electrically connecting the angle sensor. The wire is provided with a first contact piece and a second contact piece corresponding to each other at the chute. When the sliding member is located on the left side of the chute, the first contact piece and the second contact piece are in contact with a connecting piece provided on the inner wall of the ring to connect the wire. When the sliding member is located on the right side of the chute, the wire is not in a conductive path when the first contact piece and the second contact piece are not in contact with the connecting piece. When the sliding member and the chute are located at the groove, the angle sensor exactly corresponds to the angle change measurement position between the first connecting member and the second connecting member.

[0015] Further, a second airbag is provided inside the telescopic cylinder. The trajectory sensor is arranged inside the second airbag. The second airbag is provided with a second air nozzle, and the second air nozzle is connected to the pressure sensor. The pressure sensor is equipped with an air pump.

[0016] Further, the telescopic cylinder has a brim, and a channel is provided inside the brim. A drawstring is arranged in the channel.

[0017] Further, the processor is used to analyze the data of the signals received by the angle sensor and the trajectory sensor. The processor is connected to a signal transmitter and a signal receiver, and the signal transmitter and the signal receiver are communicatively connected to the central server.

[0018] Further, the closed garment has cuffs, and a monitoring ring is provided on the cuffs.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The trouser tube of the present invention provides upper body wear for the user, mainly provides leg support wear for patients undergoing knee joint surgery. The telescopic cylinder is used to assist the first connecting member and the second connecting member to change positions by telescoping, and the angle sensor and the trajectory sensor send data to the processor. After analyzing the data, the processor adjusts the movement of the telescopic cylinder to adapt to the user.

[0020] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a knee joint postoperative rehabilitation training system.

[0022] Figure 2 It is a schematic connection diagram of the processor.

[0023] Figure 3Schematic diagram for the installation of a circular housing.

[0024] Figure 4 Schematic diagram for the setting of the first airbag.

[0025] Figure 5 Schematic diagram of the positions of the groove and the clamping hole.

[0026] Figure 6 Schematic diagram of the connection line structure.

[0027] Figure 7 For Figure 6 Partial enlarged schematic diagram at position A.

[0028] Figure 8 Schematic diagram of the structure of the telescopic cylinder.

[0029] Figure 9 Schematic diagram of the structure of the closed suit. Specific implementation manner

[0030] In order to make the technical means, creative features, achieved purposes and functions of the present invention clearer and easier to understand, the present invention will be further described below in conjunction with the accompanying drawings and specific implementation manners:

[0031] The present invention provides a knee joint postoperative rehabilitation training system, including a first connector 1 and a second connector 2. The cross-sections of the first connector 1 and the second connector 2 are both semi-circular. The first connector 1 and the second connector 2 are directly connected through a hinge member. First chutes 101 and second chutes 201 are respectively arranged on the sides of the first connector 1 and the second connector 2. First sliders 102 and second sliders 202 are respectively arranged in the first chutes 101 and the second chutes 201. A telescopic cylinder 3 is respectively hinged between the first sliders 102 and the second sliders 202. A closed suit 8 is arranged on the first connector 1 and the second connector 2, so that the first connector 1 and the second connector 2 cooperate with it to form a trouser leg. Looking longitudinally, one side of the trouser leg is the first connector 1 and the second connector 2, and the other side is the closed suit 8.

[0032] The closed suit 1 is provided with a power supply 5, a processor 6, an angle sensor 7 and a track sensor 4. The processor 6 is connected to the power supply 5, the angle sensor 7 and the track sensor 4. The angle sensor 7 is used to test the angle change between the first connecting member and the second connecting member. The track sensor 4 is arranged on the inner side of the telescopic cylinder 3 to test the telescopic track change of the telescopic cylinder. There are multiple angle sensors 7 and track sensors 4. When measurement is required, the track sensor 4 is close to the leg. The power supply 5 is a battery or an electric sheet arranged in the trouser pocket of the closed suit 1. The power supply 5 has a plug interface. The power cord is connected to the processor 6. The processor 6 is connected to the display module through the communication module. The display module can be a mobile phone terminal. The mobile phone terminal app is used to monitor the data of the processor 6 received through the communication module. The processor 6 can also be connected to the central server through wireless communication. The central server is a system terminal of multiple knee joint postoperative rehabilitation training systems. The processor is used for the controller connected to the telescopic cylinder and the data transmission of the angle sensor, track sensor and pressure sensor, and is used to perform data analysis and processing and issue instructions to control the telescopic cylinder.

[0033] The sleeves of the closed suit 1 are provided with a closed suit 8 for testing pressure, the closed suit 8 includes a closed suit body integrally formed with the sleeves and a first airbag 9 arranged on the inner side of the closed suit body, the first airbag 9 is connected to a pressure measuring tube, the pressure measuring tube is connected to a pressure sensor arranged on the closed suit 1, the pressure sensor is connected to the processor 6, the first airbag 9 is provided with a first air nozzle 11, the first air nozzle 11 is connected to the pressure sensor, the pressure sensor is set to a thin section with a thickness of less than 2 cm and is arranged in the closed suit 1, the pressure sensor is connected to a power supply, the processor 6 is connected to a controller switch, and the first airbag 9 is inflated by turning on the controller switch. When inflated, the inner cavity 10 located in the first airbag 9 is inflated so that the pressure measuring tube and the pressure sensor work together to measure pressure, and the first airbag 9 is located at the position of the upper arm corresponding to the need to measure pressure.

[0034] The closed garment 1 has a plurality of built-in connecting wires 13, and the two ends of the connecting wires 13 are respectively connected to the processor 6 and the angle sensor 7, and a circular shell 16 is provided at the end of the connecting wire 13, and the angle sensor 7 is arranged in the circular shell 16. The closed garment 1 has a left front piece and a right front piece, and a door gap is formed between the left front piece and the right front piece. A plurality of longitudinal card holes 12 with plastic deformation ability are provided on the side of the right front piece adjacent to the left front piece, and a card slot is provided on the inner wall of the card hole 12. When the circular shell 16 is located in the card slot, the left front piece and the right front piece form a placket, and the connecting wire 13 is located on the left front piece.

[0035] The right front piece is provided with a strip, the clamping holes 12 are located on the strip and arranged longitudinally, the strip is provided with a groove 19 , the groove 19 extends into the clamping hole 12 , and the connecting line 13 is interference fit with the groove 19 .

[0036] The right front piece has a built-in reel 14 of the prior art, and the reel 14 has the same internal structure as the measuring tape, and the connecting wire 13 is partially wound around the reel 14. A connecting portion 15 is provided on the connecting wire 13, and the connecting portion 15 is connected to the first airbag 9. When the first airbag 9 is inflated, the connecting portion 15 is pulled to pull out the portion of the connecting wire 13 wound on the reel 14, thereby extending the length of the angle sensor 7 extending from the left front piece. After extension, the circular shell 16 is passed through the clamping hole 12 and then extended into the position where the user needs to measure the ECG. In order to prevent the connecting wire 13 from being pulled, the connecting wire 13 is clamped in the groove 19 to limit the position.

[0037] When the angle sensor 7 is needed, a circle of slide groove 20 is provided on the connecting line 13, and a sliding member is sleeved on the slide groove 20. The sliding member includes a circular ring 21 and a cone 22 connected to each other. The connecting line 13 has built-in wires for electrically connecting the angle sensor 7. The wires are provided with a first contact piece 24 and a second contact piece 25 corresponding to each other at the slide groove 20. When the sliding member is located on the left side of the slide groove 20, the first contact piece 24 and the second contact piece 25 contact with the connecting piece 23 provided on the inner wall of the circular ring 21 to connect the wires. When the sliding member is located on the right side of the slide groove 20, the first contact piece 24 and the second contact piece 25 are in contact with the connecting piece 23 provided on the inner wall of the circular ring 21 to connect the wires. In the absence of the connection piece 23 in contact, the wire does not pass, and when the sliding member and the slide groove 20 are located at the groove 19, the angle sensor 7 corresponds exactly to the angle change to be measured position between the first connecting member and the second connecting member; the connecting wire 13 is pulled out of the clamping hole 12, and when the specified position is reached, the ring 21 is clamped at the groove 19 for locking, and at the same time, the first contact piece 24 and the second contact piece 25 are in contact with the connection piece 23 provided on the inner wall of the ring 21, and the processor 6 and the angle sensor 7 are electrically connected through the wire, and the wire is disconnected at the first contact piece 24 and the second contact piece 25.

[0038] The telescopic cylinder 3 has a built-in second airbag 26, the track sensor 4 is arranged inside the second airbag 26, the second airbag is provided with a second air nozzle, the second air nozzle is connected to the pressure sensor, and the pressure sensor has an air pump; when the air pump is started, the first airbag 9 and the second airbag can be inflated at the same time, using the first airbag 9 to cooperate with the pressure gauge blood pressure, and the second airbag is inflated to make the second track sensor 4 close to the leg.

[0039] The closed garment 8 has an edge 31, and a channel 27 is built in the edge 31. A drawstring 28 is provided in the channel, and the trajectory sensor 4 is tightened against the head and legs by the drawstring 28.

[0040] The processor 6 is used to perform data analysis on the signals received by the angle sensor 7 and the trajectory sensor 4. The processor 6 is connected to a signal transmitter 17 and a signal receiver 18. The signal transmitter 17 and the signal receiver 18 are communicatively connected to a central server, and are communicatively connected to a mobile phone app or the central server through the signal transmitter 17 and the signal receiver 18; the closed garment 1 has cuffs, and a monitoring ring 30 is provided on the cuffs. The monitoring ring 30 is a prior art for monitoring other vital signs of a patient.

[0041] Third airbags are provided on both sides of the closed garment 1. The third airbags are connected to the pressure sensors, and are inflated under the action of air pumps of the pressure sensors to make the closed garment 1 close to the skin, so that the angle sensor 7 is close to the skin to avoid slipping; Nylon fasteners and nylon tapes 32 that can be adhered to each other are respectively provided on the opposite surfaces of the left front piece and the right front piece.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A knee joint postoperative rehabilitation training system, characterized in that: It includes a first connecting member (1) and a second connecting member (2). The cross-sections of the first connecting member (1) and the second connecting member (2) are both semi-circular arcs. The first connecting member (1) and the second connecting member (2) are directly connected by a hinge member. First chutes (101) and second chutes (201) are respectively provided on the sides of the first connecting member (1) and the second connecting member (2). First sliders (102) and second sliders (202) are respectively provided in the first chutes (101) and the second chutes (201). A telescopic cylinder (3) is hinged between the first slider (102) and the second slider (202). A closing garment (8) is provided on the first connecting member (1) and the second connecting member (2) so that the closing garment (1) and the second connecting member (2) cooperate with it to form a trouser leg.

2. The knee joint postoperative rehabilitation training system according to claim 1, wherein: A power supply (5), a processor (6), an angle sensor (7) and a trajectory sensor (4) are provided on the closing garment (8). The processor (6) is connected to the power supply (5), the angle sensor (7) and the trajectory sensor (4). The angle sensor (7) is used to test the angle change between the first connecting member and the second connecting member. The trajectory sensor (4) is arranged inside the telescopic cylinder (3) to test the change of the telescopic trajectory of the telescopic cylinder.

3. The knee joint postoperative rehabilitation training system according to claim 1, wherein: A first airbag (9) is arranged inside the closing garment (8). The first airbag (9) is connected to a pressure measuring tube. The pressure measuring tube is connected to a pressure sensor arranged on the closing garment (1). The pressure sensor is connected to the processor (6). The first airbag (9) is provided with a first air nozzle (11). The first air nozzle (11) is connected to the pressure sensor.

4. The knee joint postoperative rehabilitation training system according to claim 3, characterized in that: A plurality of connecting wires (13) are arranged inside the closing garment (1). Both ends of the connecting wires (13) are respectively connected to the processor (6) and the angle sensor (7). A circular housing (16) is provided at the end of the connecting wire (13). The angle sensor (7) is arranged inside the circular housing (16). The closing garment (1) has a left front piece and a right front piece. A door gap is formed between the left front piece and the right front piece. A plurality of longitudinal card holes (12) with the ability of plastic deformation are provided on one side of the right front piece adjacent to the left front piece. A card slot is provided on the inner wall of the card hole (12). When the circular housing (16) is located in the card slot, the left front piece and the right front piece form a front placket. The connecting wire (13) is located on the left front piece.

5. The knee joint postoperative rehabilitation training system according to claim 4, characterized in that: A strip-shaped member is provided on the right front piece. The card holes (12) are located on the strip-shaped member and arranged longitudinally. A groove (19) is provided on the strip-shaped member. The groove (19) extends into the card hole (12). The connecting wire (13) is in interference fit with the groove (19).

6. The knee joint postoperative rehabilitation training system according to claim 4, characterized in that: A rewinder (14) of the prior art is arranged inside the right front piece. A part of the connecting wire (13) is wound around the rewinder (14). A connecting portion (15) is provided on the connecting wire (13). The connecting portion (15) is connected to the first airbag (9).

7. The knee joint postoperative rehabilitation training system according to claim 6, characterized in that: A sliding groove (20) is provided on the connecting wire (13). A sliding member is sleeved on the sliding groove (20). The sliding member includes an annular ring (21) and a cone (22) connected to each other. The connecting wire (13) internally has a wire for electrically connecting the angle sensor (7). The wire is provided with a first contact piece (24) and a second contact piece (25) corresponding to each other at the sliding groove (20). When the sliding member is located on the left side of the sliding groove (20), the first contact piece (24) and the second contact piece (25) are in contact with a connecting piece (23) provided on the inner wall of the annular ring (21) to connect the wire. When the sliding member is located on the right side of the sliding groove (20), the wire is not in a conductive path when the first contact piece (24) and the second contact piece (25) are not in contact with the connecting piece (23). When the sliding member and the sliding groove (20) are located at the groove (19), the angle sensor (7) exactly corresponds to the position where the angle change between the closing garment and the second connecting member is to be measured.

8. The knee joint postoperative rehabilitation training system according to claim 2, wherein: The telescopic cylinder (3) internally has a second airbag. The trajectory sensor (4) is arranged inside the second airbag. The second airbag is provided with a second air nozzle. The second air nozzle is connected to the pressure sensor. The pressure sensor has an air pump.

9. The knee joint postoperative rehabilitation training system according to claim 8, wherein: The telescopic cylinder (3) has a brim. A channel is provided inside the brim. A pull rope (28) is arranged in the channel.

10. A knee joint postoperative rehabilitation training system according to any one of claims 1 to 8, characterized in that: The processor (6) is used for analyzing the data of the signals received by the angle sensor (7) and the trajectory sensor (4). The processor (6) is connected to a signal transmitter (17) and a signal receiver (18). The signal transmitter (17) and the signal receiver (18) are communicatively connected to the central server.

11. The knee joint postoperative rehabilitation training system according to any one of claims 10, characterized in that: The closing garment (1) has cuffs. A monitoring ring (30) is provided on the cuffs.

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