Critical patient convenient rehabilitation apparatus generated through 3D printing technology

Abstract

The invention discloses a critical patient portable rehabilitation apparatus generated through a 3D printing technology. The critical patient portable rehabilitation apparatus comprises an OLED display screen, an adjustable detection rod, a positioning bar, a collision sensor and a sickbed. Wherein the positioning fence is of a main body supporting structure, the positioning fence and the adjustable detection rod are used in a matched mode, an H shape is formed after combination, the positioning fence is installed on the bedside, positioning holes are evenly distributed in the inner walls of the two sides of the positioning fence, and the positioning holes located in the two sides of the positioning fence are in one-to-one correspondence. The adjustable detection rods are inserted into positioning holes formed in the two sides of the two opposite positioning fences to be fixed, and the adjustable detection rods can be taken out. 3D modeling and 3D printing are adopted, printing materials are low in cost, high in toughness, environmentally friendly, not prone to deformation, light and convenient to move, a patient can be helped to set each exercise target, the training completion condition can be known in real time, compliance of active training is improved, cost is saved, and meanwhile body injuries caused by back-and-forth instrument moving to medical staff are reduced.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to portable rehabilitation devices for critically ill patients. Background Technology

[0002] Some patients with lower limb fractures, due to trauma, surgery, or personal factors, are prone to prolonged bed rest and immobilization of the limbs, which can easily lead to poor local blood circulation, fibrous adhesions within the joint, muscle atrophy and stiffness in the joint capsule and surrounding areas, and slowed blood circulation. This can result in varying degrees of joint stiffness and venous thrombosis. Currently, the most commonly used exercise device in clinical practice is the passive knee motor (CPM), which uses repeated, continuous flexion and extension movements to eventually achieve normal knee joint range of motion. However, it also has some drawbacks, such as high cost, bulky design requiring two people to move, large size (occupying nearly two-thirds of the bed), low patient acceptance, poor motivation for active training, and the potential for injury to medical staff from moving the device back and forth. Summary of the Invention

[0003] This application provides a portable rehabilitation device for critically ill patients generated by 3D printing technology. The application uses 3D modeling and 3D printing. The printing material is low-cost, tough, environmentally friendly, not easily deformed, lightweight, and easy to move. It can help patients set exercise goals for each session, understand the training progress in real time, improve compliance with active training, save costs, and reduce the physical injury to medical staff caused by moving the device back and forth.

[0004] This application provides a portable rehabilitation device for critically ill patients generated by 3D printing technology, including: an OLED display screen, an adjustable detection rod, a positioning bar, a collision sensor, and a hospital bed;

[0005] The positioning rail serves as the main support structure. It works in conjunction with the adjustable detection rod, forming an "H" shape. The positioning rail is installed beside the bed, with evenly distributed positioning holes on both inner walls, each corresponding to the other. The adjustable detection rod is inserted into the positioning holes on either side of the two opposing positioning rails and fixed in place. The adjustable detection rod can be removed. Depending on the patient's needs, the adjustable detection rod is inserted into the evenly distributed positioning holes on the inner side of the positioning rail, ensuring a one-to-one correspondence. The adjustable detection rod is then placed between two positioning holes at the same height and fixed in place. The height of the adjustable detection rod is determined based on the patient's physical condition, postoperative recovery, and leg length. An infrared sensor is placed at a position on the bed surface where the angle between the patient's leg and the bed is 0 degrees.

[0006] After measuring all the dimensions of the hospital bed on-site, we used the 3D modeling software SOLIDWORKS to create a model. At the same time, we determined the position of the fixed adjustable detection rod on the positioning bar. After the modeling was completed, we 3D printed the positioning bar. The material used for the positioning bar was PLA material for FDM type 3D printing, while the adjustable detection rod was printed separately using PETG material.

[0007] The collision sensor is set up separately and is electrically connected to the OLED display screen. The collision sensor is attached to the patient's ankle joint. When the collision sensor contacts the adjustable detection rod once and the patient's foot lands on the surface of the infrared sensor set on the bed, the number of collisions on the OLED display screen is increased by 1.

[0008] The OLED display screen is fixed at the top of the positioning bar on one side. The OLED screen is connected to the computer and displays the number of times the patient has bumped into objects and the target number for the day. At the same time, the data is monitored in real time and returned to the web page on the computer for doctors to observe.

[0009] Furthermore, the number of times the OLED screen is displayed is achieved through two variables: "number of collisions" and "daily target number of times". The number of collisions is the number of times already done, which is counted once when the collision sensor is activated. The remaining number of times is achieved by subtracting the number of collisions already done from the daily target number of times set by the doctor through the web page.

[0010] Furthermore, the adjustable detection rod can be placed separately after printing, and its height can be manually fixed when needed.

[0011] As can be seen from the above technical solution, this application provides a portable rehabilitation device for critically ill patients generated by 3D printing technology. First, a planar sketch is drawn using drawing tools to repeatedly determine the feasibility of the device. Considering that each patient's bones are different and the damaged parts are different, we cannot customize the counting unit for each patient. Therefore, we adopt the method of attaching a collision sensor to the ankle. By having the patient raise their leg, the sensor is made to collide with the detection rod to monitor whether the set of actions meets the counting standard. To prevent the patient from performing a second set of actions after not reaching the minimum limit after counting once, an infrared sensor is added at the position where the angle between the patient's leg and the bed is 0 degrees. Only when the collision sensor detects and the infrared sensor detects that the patient's leg has returned to its original position is it counted once.

[0012] After accurately measuring the dimensions of the hospital bed on-site, we used the 3D modeling software SOLIDWORKS (SOLIDWORKS is a mechanical design automation software application that uses the familiar Microsoft Windows graphical user interface. Using this easy-to-learn tool, mechanical design engineers can quickly sketch according to their design ideas, experiment with various features and dimensions, and generate models and detailed engineering drawings.) to create the model. We also determined the position of the positioning bar for the fixed detection rod, and used an H-shaped structure below for easy fixation (we later planned to add a screw-type fixation for greater stability, but this couldn't be implemented due to modeling limitations). We added a housing above the positioning bar to accommodate the OLED screen, and placed the motherboard and its power supply module behind it, achieving a clean and aesthetically pleasing design (the sensor and motherboard are wirelessly connected). The OLED screen displays the number of times the test was performed and the target number for the day. Simultaneously, the data is monitored in real-time and returned to a web interface for doctors to observe (the advantage of a web interface is that it can be opened on computers, WeChat mini-programs, and browsers, eliminating the need for separate software development for each system).

[0013] In summary, the beneficial effects of this application are as follows:

[0014] 1. Simple design, inexpensive materials, 3D modeling, 3D printing, using open-source UNO Arduino and ESP32 development boards, highly practical.

[0015] 2. Help patients set goals for each exercise session, monitor their progress in real time, and improve their adherence to voluntary training.

[0016] 3. Small size, easy to move, suitable for all current hospital beds, can be modified according to the actual bed on site, convenient for home exercise. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this application.

[0019] Figure 2 Program code for computer operation.

[0020] Figure 3 This refers to the execution logic of the hardware.

[0021] Figure 4 This refers to the program code flow. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] As can be seen from the above technical solutions, see [link / reference]. Figures 1-4 .

[0024] Example 1:

[0025] A portable rehabilitation device for critically ill patients, manufactured using 3D printing technology, includes: an OLED display screen for patient reference and easy viewing by doctors during rounds; an adjustable detection rod, allowing doctors to manually set the height of the holes to determine the patient's lower limb functional rehabilitation exercises; a positioning bar to determine the height of the detection rod, with an H-shaped structure at the lower end for easy fixation to the hospital bed; a collision sensor fixed at the patient's ankle joint to count collisions with the detection rod; and an infrared sensor positioned on the bed surface at a 0-degree angle between the patient's legs and the bed surface, which works in conjunction with the collision sensor to complete the counting.

[0026] The positioning bar serves as the main support structure. It works in conjunction with the adjustable detection rod, forming an "H" shape. The positioning bar is installed on the side of the hospital bed. There are evenly distributed positioning holes on the inner walls of both sides of the positioning bar, and the positioning holes on both sides of the positioning bar correspond one-to-one. The adjustable detection rod is inserted into the positioning holes on both sides of the two opposing positioning bars and fixed in place. The adjustable detection rod can be removed. According to different patient needs, the adjustable detection rod is inserted into the evenly distributed positioning holes on the inner side of the positioning bar. After they correspond one-to-one, the adjustable detection rod is set up between the two positioning holes at the same height. After the setup is completed, it is fixed. The height of the adjustable detection rod is determined according to the patient's physical condition, postoperative recovery, and leg length.

[0027] After measuring all the dimensions of the hospital bed on-site, we used the 3D modeling software SOLIDWORKS to create a model. At the same time, we determined the position of the fixed adjustable detection rod on the positioning bar. After the modeling was completed, we 3D printed the positioning bar. The material used for the positioning bar was PLA material for FDM type 3D printing, while the adjustable detection rod was printed separately using PETG material.

[0028] The collision sensor is set up separately and is electrically connected to the OLED display screen. The collision sensor is strapped to the patient's ankle joint. When the collision sensor contacts the adjustable detection rod once and the foot lands on the surface of the infrared sensor set on the bed, a collision is completed, and the number of collisions on the OLED display screen is incremented by 1.

[0029] The OLED display screen is fixed at the top of the positioning bar on one side. The OLED screen is connected to the computer and displays the number of times the patient has bumped into objects and the target number for the day. At the same time, the data is monitored in real time and returned to the web page on the computer for doctors to observe.

[0030] In a preferred implementation, the number of times the OLED screen is displayed is achieved through two variables: "number of collisions" and "daily target number of collisions". The number of collisions is the number of times already done, counted once when the collision sensor is activated. The remaining number of collisions is achieved by subtracting the number of collisions already done from the daily target number of collisions set by the doctor on the webpage.

[0031] As a preferred embodiment, the adjustable detection rod can be placed separately after printing, and its height can be manually fixed when needed.

[0032] Working principle:

[0033] A positioning rail is installed beside the hospital bed. The height at which the patient's legs are raised is customized by passing a positioning rod through a positioning hole at the same height. A collision sensor (analog pin A0) is attached to the patient's ankle joint. When the sensor attached to the patient's ankle joint touches the adjustable detection rod, it counts once. At the same time, the detection pin A1 (the infrared sensor at the horizontal position of the hospital bed) detects whether the patient returns the leg to its original position before performing a second movement. If not, the counting pauses until the infrared sensor detects an obstruction. The number of times the OLED screen displays is implemented through two variables: "number of activities" and "daily target number of activities". The number of activities is the number of times already performed, counted once when the collision sensor is activated. The remaining number of activities is calculated by subtracting the number of activities already performed from the daily target number of activities set by the doctor through the web interface.

[0034] The positioning bar is made of FDM-type 3D printed PLA material. The positioning rod, due to its larger size, is printed separately using PETG material (this material is low-cost, tough, environmentally friendly, and not easily deformed; it is printed with a 15% infill density, resulting in a smaller mass and easier movement). The following images show the program code and the hardware execution logic.

[0035] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0036] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A portable rehabilitation device for critically ill patients generated using 3D printing technology, characterized in that, include: OLED display screen, adjustable detection rod, positioning bar, collision sensor, hospital bed; The positioning rail is the main support structure. It is used in conjunction with the adjustable detection rod to form an "H" shape. The positioning rail is installed on the side of the hospital bed. There are evenly distributed positioning holes on the inner walls of both sides of the positioning rail, and the positioning holes on both sides of the positioning rail correspond one-to-one. The adjustable detection rod is inserted into the positioning holes on both sides of the two opposing positioning rails and fixed. The adjustable detection rod can be removed. According to different patient needs, the adjustable detection rod is inserted into the evenly distributed positioning holes on the inner side of the positioning rail. After one-to-one correspondence, the adjustable detection rod is set between the two positioning holes at the same height and fixed after setting. The setting height of the adjustable detection rod is determined according to the patient's physical condition, postoperative recovery, and leg length. An infrared sensor is set at the position where the angle between the patient's leg and the hospital bed is 0 degrees on the hospital bed surface. After measuring all the dimensions of the hospital bed on-site, a 3D modeling software called SOLIDWORKS was used to create a model. At the same time, the position of the adjustable detection rod on the positioning bar was determined. After the modeling was completed, 3D printing was performed. The positioning bar was made of PLA material of FDM type 3D printing, while the adjustable detection rod was printed separately using PETG material. The collision sensor is set separately and is electrically connected to the OLED display screen. The collision sensor is strapped to the patient's ankle joint. When the collision sensor contacts the adjustable detection rod once and the patient's foot lands on the infrared sensor set on the bed surface, the number of collisions to the OLED display screen is increased by 1. The OLED display screen is fixed to the top of the positioning bar on one side. The OLED screen is connected to a computer and displays the number of times the patient has bumped into objects and the target number for the day. At the same time, the data is monitored in real time and returned to the web page on the computer for feedback to the doctor for easy observation.

2. The portable rehabilitation device for critically ill patients generated by 3D printing technology according to claim 1, characterized in that, The number of times the OLED screen displays data is determined by two variables: "number of collisions" and "daily target number of collisions". The number of collisions is the number of times the collision has been performed, which is counted once when the collision sensor is activated. The remaining number of collisions is determined by subtracting the number of collisions already performed from the daily target number of collisions set by the doctor on the webpage.

3. A portable rehabilitation device for critically ill patients generated using 3D printing technology according to claim 1, characterized in that, The adjustable detection rod can be placed separately after printing, and its height can be manually fixed when needed.

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