Adjustable orthopedic position pad and adjusting system thereof

Abstract

The invention discloses an adjustable orthopedic position pad and an adjusting system thereof, and belongs to the field of medical auxiliary instruments. The body position pad comprises a base, a plurality of trunk electric push rods, a body position support and a mirror surface anesthesia face support. The plurality of trunk electric push rods are vertically and symmetrically distributed on the base, and the top of each trunk electric push rod is transversely and fixedly provided with a body position support with a built-in pressure sensor; the top of the front end of the base is provided with a mirror anesthesia face support with a built-in Hall sensor. The adjusting system comprises a core control module for operating a PID algorithm, Hall / pressure sensor feedback units integrated on the push rods and the body position support, and a man-machine interaction terminal provided with symmetrical synchronous and independent adjusting buttons. Through driving of the electric push rod and a sensor feedback closed loop, synchronous adjustment and fine adjustment of the body position are achieved, the supporting pressure can be monitored in real time, excessive local pressure is avoided, the pressure injury and nerve compression risks are reduced, and the surgical body position placement accuracy and operation efficiency are improved.

Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary device technology, specifically relating to an adjustable orthopedic positioning pad and its adjustment system. Background Technology

[0002] In orthopedic surgery, precise and stable patient positioning is a crucial foundation for surgical success. Appropriate positioning not only fully exposes the surgical field, facilitating the surgeon's work, but also effectively avoids complications such as pressure injuries and pressure sores caused by prolonged compression, while maintaining the patient's respiratory and circulatory patency.

[0003] Currently, orthopedic positioning pads used in clinical practice are mainly divided into two categories: fixed and easily adjustable. Fixed positioning pads adapt to specific surgical positions through a pre-set arc structure, but they cannot be dynamically adjusted according to the patient's body shape and surgical needs, which can easily lead to problems such as intraoperative compression injury and abnormal spinal curvature. Although easily adjustable positioning pads can achieve simple adjustment, they still have shortcomings: insufficient adjustment precision and synchronization; the adjustment and control of most devices rely on the operator's experience, which can easily produce large errors; it is difficult to make adaptive adjustments for individual differences in the patient's shoulders, waist, hips, etc.; and there is a lack of monitoring mechanisms, usually relying on experience and observation, which cannot monitor the pressure parameters of various support points of the body in real time, posing a risk of excessive local pressure leading to compression injury. Summary of the Invention

[0004] This invention addresses the problems of low adjustment precision, poor individual adaptability, lack of safety monitoring, and cumbersome operation of existing orthopedic positioning pads by providing an adjustable orthopedic positioning pad and its adjustment system. The pad utilizes multiple sets of electric push rods to achieve adaptive adjustment, and combines pressure and position sensors for precise monitoring. The system also enables precise control and adjustment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0006] An adjustable orthopedic positioning pad mainly includes multiple positioning supports and corresponding electric trunk push rods. The electric trunk push rods are all vertically mounted on a base surface. The base is rectangular and adapted to the operating table. The electric trunk push rods are symmetrically distributed on the left and right sides of the base surface and are equidistant from front to back. The positioning supports are horizontally fixed on the top of the corresponding electric trunk push rods, and the positioning supports on both sides extend towards the center to form a platform that can support the body. The positioning supports can be raised and lowered by controlling the movement of the electric trunk push rods, and the height of the positioning supports can be flexibly adjusted as needed.

[0007] A face support electric push rod is vertically installed at the central axis of the front end of the base surface, and a mirror anesthesia face support is installed on the top of the face support electric push rod. The mirror anesthesia face support includes a facial cushion and a glass mirror. The patient's facial condition can be directly reflected and observed through the glass mirror, and the height of the mirror anesthesia face support can be controlled by the face support electric push rod to adapt to changes in body position.

[0008] The positioning support and the mirror anesthesia face support are each equipped with a Hall position sensor. Pressure sensors are also embedded on the top surface of each positioning support, which can collect the height data of the positioning support and the mirror anesthesia face support in real time and monitor the pressure borne by each positioning support in real time.

[0009] Furthermore, the surface of the positioning support is covered with a medical-grade silicone pad to enhance comfort, and the upper surface of the positioning support has an insertion hole into which a vertical support rod can be inserted. According to the needs of the surgery, the vertical support rod can be used to support the patient's body and achieve the requirements of different surgical procedures for lateral decubitus positions. A carbon fiber plate is connected to the back of the sponge pad through a pressure bolt. The carbon fiber plate can be used to fix the sponge pad, and the sponge pad can be adjusted by the pressure bolt to achieve pressure fixation when the patient is lying on their side.

[0010] Furthermore, the four corners of the base are fitted with fixing brackets by bolts. The fixing brackets are U-shaped and can fix the base to the edge of the operating table. The lower surface of the base has symmetrical U-shaped grooves along the front-back direction, which can be directly fastened to the operating table rails or side rails.

[0011] The present invention also provides an adjustment system for the above-mentioned adjustable orthopedic positioning pad, including a core control module, a sensor feedback unit, and a human-computer interaction terminal.

[0012] The core control module includes a master core and a slave core. Both the master core and the slave core are single-chip microcomputers that run a PID closed-loop control algorithm, which can accurately coordinate the movements of all electric actuators.

[0013] The sensor feedback unit is used for real-time data acquisition and monitoring, specifically including: a Hall position sensor built into each electric actuator to monitor the lifting height of the electric actuator in real time; and a pressure sensor embedded in the body positioning support to monitor the pressure between the body and the support. Data from each sensor can be fed back to the core control module in real time.

[0014] The human-machine interaction terminal is fixed to the upper surface of the front end of the base. The human-machine interaction terminal includes a display screen, which can receive and display real-time sensor data collected by the sensor feedback unit. The human-machine interaction terminal is equipped with multiple symmetrical synchronization buttons and one individual adjustment button. The symmetrical synchronization buttons can control the raising and lowering of two symmetrical torso electric push rods respectively, while the individual adjustment button controls the raising and lowering of the face support electric push rod.

[0015] The core control logic of the human-computer interaction terminal includes: symmetrical synchronous adjustment: after pressing the "symmetrical synchronization button" as needed, the controller drives the left and right symmetrical torso electric push rods to rise and fall synchronously according to the PID algorithm, and the synchronization error is corrected in real time through feedback from the Hall position sensor; individual adjustment: pressing the corresponding "individual adjustment button" allows for independent adjustment to meet personalized fine-tuning needs.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention uses multiple independent electric push rods as drive units and integrates Hall position sensors for real-time feedback. Combined with the PID closed-loop control algorithm of the core control module, it can achieve synchronous lifting and lowering control of the left and right symmetrical push rods.

[0017] 2. By embedding pressure sensors in the positioning support and using a human-machine interface terminal, the compression of the patient's body can be monitored in real time. The electric push rod of the torso can be finely adjusted according to the pressure value, effectively reducing the risk of pressure injury during surgery.

[0018] 3. By using the vertically opened holes on the surface of the positioning support, and with the detachable vertical pads, multiple vertical pads can be inserted into the holes when it is necessary to keep the patient in a side-lying position. This forms a vertical support plane to provide lateral support to the patient's body, thus enabling the patient to lie on their side. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments are briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0021] Figure 2 This is a schematic diagram of the mirror-like anesthesia face support structure of Embodiment 1 of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the vertical pad rod for the installation part in Embodiment 1 of the present invention.

[0023] Figure 4 This is a schematic diagram of the sponge pad structure in Embodiment 1 of the present invention.

[0024] Figure 5 This is a flowchart of the adjustment system of Embodiment 1 of the present invention.

[0025] The structural names represented by each number in the attached diagram are as follows: 1-Base, 2-Torso electric push rod, 3-Positioning support, 301-Insert hole, 4-Face support electric push rod, 5-Mirror anesthesia face support, 501-Face pad, 502-Glass mirror, 503-Support column, 6-Human-computer interaction terminal, 7-Fixed clamp, 8-Sponge pad, 801-Carbon fiber plate, 802-Pressure bolt, 9-U-shaped groove. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1 See Figures 1 to 5 As shown in the figure, this embodiment provides a specific implementation of an adjustable orthopedic positioning pad and its adjustment system, wherein the adjustable orthopedic positioning pad includes a base 1 and multiple sets of torso electric push rods 2 and a face support electric push rod 4 mounted on the base 1.

[0028] The base 1 is a rectangular frame shape adapted to the operating table. U-shaped fixing brackets 7 are installed at the four corners of the base 1 by horizontal bolts. The lower end of the fixing bracket 7 is also installed with bolts. By tightening the bolts, the fixing bracket 7 can be clamped and fixed to the edge of the operating table. The lower surface of the base has symmetrical U-shaped grooves along the front and back direction, which can be directly fastened to the bed rail of the Jackson operating table or the side rail of ordinary surgery.

[0029] Sixteen electrically operated torso push rods 2 are symmetrically and equidistantly mounted vertically on both sides of the upper surface of the base 1 along its length, with eight on each side. These eight sets of torso push rods 2 correspond to the patient's shoulders, upper back, lower back, and buttocks and legs, respectively. The torso push rods 2 are medical-grade silent electric push rods with a stroke of 50-400mm, a rated load of 80kg, and a power-off self-locking function. A positioning support 3 is fixedly installed on the top of each set of torso push rods 2, forming a platform to support the patient's torso.

[0030] The main surface of the positioning support 3 is covered with a medical-grade silicone pad. A flexible pressure sensor is embedded in the top surface of each positioning support 3 to monitor the body pressure borne by the support point in real time. In addition, one or more vertical insertion holes 301 are provided on the upper surface of each positioning support 3. These insertion holes 301 are used to insert a removable sponge pad 8 when a lateral decubitus position is required for surgery. A carbon fiber plate 801 is connected to the rear side of the sponge pad 8 via a pressure bolt 802. The carbon fiber plate 801 secures the sponge pad 8 within the insertion hole 301, and the pressure bolt 802 allows for adjustment of the sponge pad 8, enabling pressure to be applied when the patient is in a lateral decubitus position.

[0031] A face support electric actuator 4 is vertically mounted on the central axis at the front end of the base 1 surface. This actuator is also a medical-grade silent electric actuator. At the top of the face support electric actuator 4, a mirror anesthesia face support 5 is installed. The mirror anesthesia face support 5 consists of a U-shaped facial cushion 501 and a glass mirror 502, which are connected by four support columns 503. The facial cushion 501 can support the patient's head and expose the face, while the glass mirror 502 allows the patient's facial condition to be observed without moving the patient.

[0032] Both the positioning support 3 and the mirror anesthesia face support 5 are equipped with Hall effect position sensors to monitor their height.

[0033] The adjustment system for controlling the positioning pad in this embodiment includes: a core control module, a sensor feedback unit, and a human-computer interaction terminal 6.

[0034] The core control module adopts a dual-core design, consisting of a master core and a slave core. The master and slave cores interact via an I2C bus with a communication baud rate of 100kHz to ensure real-time transmission of commands and feedback data. An STM32 series microcontroller is used, capable of running a PID closed-loop control algorithm. The PID closed-loop control algorithm has a proportional coefficient Kp = 0.5-1.2, an integral coefficient Ki = 0.1-0.3, and a derivative coefficient Kd = 0.05-0.1. The synchronization error correction logic is as follows: Hall position sensors collect the height difference between the left and right symmetrical push rods in real time. When the difference exceeds 0.5mm, the master core adjusts the lifting speed of the lagging push rod through the slave core until the difference is ≤0.1mm.

[0035] The sensor feedback unit consists of two parts: first, Hall effect position sensors built into all the torso electric push rods 2 and face electric push rods, used to provide real-time and accurate feedback on the extension height of each push rod; second, pressure sensors embedded in the top of each body support 3, used to collect pressure data at each support point in real time. All sensor data is transmitted to the core control module in real time via lines. The human-machine interface terminal 6 is fixedly installed on the upper surface of the front end of the base 1. The human-machine interface terminal 6 is equipped with a display screen, used to display sensor data such as the height of each push rod and the pressure of each body support 3 in real time. The terminal panel is equipped with multiple function buttons, mainly including two types: one type is "symmetric synchronization buttons", each button corresponds to controlling a pair of left and right symmetrical torso electric push rods 2; the other type is "individual adjustment buttons", corresponding to controlling the face support electric push rod 4.

[0036] Usage Procedure: Securely install the entire positioning pad onto the operating table using the fixing clamp 7. After anesthesia, adjust the height of the positioning module according to the patient's body shape and surgical needs to design a personalized positioning that meets the surgical requirements. First, with the assistance of medical staff, the patient lies supine, lateral, or prone on the positioning pad, with their head placed in the mirror anesthesia face support 5. Before surgery, medical staff can quickly position the patient using the human-computer interaction terminal 6. Specifically, by pressing the corresponding symmetrical synchronization button, the core control module, based on a PID algorithm, drives a pair of electric trunk push rods 2 on both sides to rise synchronously to the preset height. The synchronization accuracy is achieved through feedback from the internal Hall position sensors, ensuring trunk support balance. During positioning, the display screen shows the pressure data at each point in real time. If the pressure at a certain point is found to be too high, medical staff can press the corresponding adjustment button to fine-tune its height until the pressure drops to a safe range. For surgeries requiring a lateral position, the required number of vertical pad rods 8 can be inserted into the corresponding holes 301 of the positioning support 3 to form a lateral support surface. During the procedure, medical staff can continuously observe the patient's face through the glass mirror 502 of the mirror-like anesthesia face support 5. If the patient's position needs to be adjusted due to the surgery, it can be finely adjusted again using the symmetrical synchronization buttons. During the adjustment process, the electric push rod 4 of the face support can also be independently controlled by a separate button to adapt to changes in head position. Throughout the entire process, the sensor feedback unit works continuously, providing a basis for closed-loop control of the core control module.

[0037] For those skilled in the art, various modifications and variations can be made to the above embodiments without departing from the principles of the present invention, and all such modifications and variations should fall within the protection scope of the present invention.

Claims

1. An adjustable orthopedic positioning pad, characterized in that: The device includes a base (1), on which at least 8 torso electric push rods (2) are vertically mounted. The torso electric push rods (2) are symmetrically arranged in pairs and are equidistantly distributed in parallel along the length of the base (1). A body positioning support (3) is horizontally fixedly mounted on the top of each pair of symmetrical torso electric push rods (2). A face support electric push rod (4) is vertically mounted at the central axis of the front end of the surface of the base (1). A mirror anesthesia face support (5) is mounted on the top of the face support electric push rod (4). Both the body positioning support (3) and the mirror anesthesia face support (5) have built-in Hall position sensors, and a pressure sensor is embedded in the top surface of each body positioning support (3).

2. The adjustable orthopedic positioning pad according to claim 1, characterized in that: The body positioning support (3) is covered with a medical silicone soft pad, and the upper surface of the body positioning support (3) is vertically provided with an insertion hole (301), into which a sponge pad (8) for supporting the body in a side-lying position can be inserted.

3. The adjustable orthopedic positioning pad according to claim 1, characterized in that: U-shaped fixing brackets (7) are installed at the four corners of the base (1) by bolts. Bolts are provided on the horizontal and lower ends of the fixing brackets (7). The base (1) can be clamped and fixed to the edge of the operating table by tightening the bolts.

4. The adjustable orthopedic positioning pad according to claim 1, characterized in that: The mirror-like anesthesia face support (5) includes a face cushion (501) and a glass mirror (502), which are connected by a support column (503).

5. The adjustable orthopedic positioning pad according to claim 1, characterized in that: The lower surface of the base (1) is provided with a U-shaped groove (9) that is symmetrical in the front and back direction, which can be directly fastened to the operating table rail or side rail.

6. The adjustable orthopedic positioning pad according to claim 2, characterized in that: The back side of the sponge pad (8) is connected to a carbon fiber plate (801) by a pressure bolt (802).

7. A regulating system for use in any one of claims 1-6, characterized in that: The core control module includes a master core and a slave core, both of which are single-chip microcomputers. The master core is responsible for receiving instructions from the human-machine interaction terminal (6) and processing sensor data, while the slave core is responsible for driving the electric push rod. The two work together to run a PID closed-loop control algorithm. The sensor feedback unit includes a Hall position sensor built into each torso electric push rod (2) and face support electric push rod (4) and a pressure sensor embedded in the body support (3), which is used to collect the lifting height data of the electric push rod and the pressure data of the torso in contact with the body support (3) in real time, and feed the data back to the core control module. The human-computer interaction terminal (6) is fixed on the upper surface of the front end of the base (1). The human-computer interaction terminal (6) includes a display screen and is provided with symmetrical synchronization buttons that are the same number as the left and right symmetrical torso electric push rods (2), and individual adjustment buttons that are the same as the total number of torso electric push rods (2) and face support electric push rods (4).

8. The regulating system according to claim 5, characterized in that: The symmetrical synchronization button is used to control the lifting and lowering of the two symmetrical torso electric push rods (2) respectively, and the individual adjustment button is used to control the lifting and lowering of each torso electric push rod (2) and the lifting and lowering of the face support electric push rod (4).

9. The regulating system according to claim 5, characterized in that: The PID closed-loop control algorithm of the core control module can drive the left and right symmetrical torso electric push rods (2) to rise and fall synchronously after the symmetrical synchronization button is pressed, and correct the synchronization error in real time through the data fed back by the Hall position sensor.

10. The regulating system according to claim 5, characterized in that: The display screen can receive and display real-time data collected by the sensor feedback unit.

Images