Auxiliary rehabilitation device for cardiac surgery nursing

Abstract

The invention discloses an auxiliary rehabilitation device for cardiac surgery nursing in the technical field of medical instruments. The auxiliary rehabilitation device comprises an upper limb training mechanism and a lower limb training mechanism. The lower limb training mechanism comprises a base located at the tail of the bed body, a pair of piston grooves are formed in the side, close to the lower limbs of the patient, of the base, piston columns are arranged in the piston grooves in a sliding fit mode, foot fixing assemblies are arranged at the ends, away from the piston grooves, of the piston columns, and resistance adjusting mechanisms used for adjusting the resistance when the piston columns move communicate with the interiors of the piston grooves. The upper limb training assembly comprises a carrier and a supporting mechanism used for supporting the carrier. A rotating body is rotationally connected to the base. According to the scheme, upper and lower limb cooperative training can be achieved, and rehabilitation efficiency and effect are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular is an auxiliary rehabilitation device for cardiac surgery nursing. Background Art

[0002] Postoperative patient rehabilitation is a crucial component of cardiac surgery care. Following cardiac surgery, patients typically require a series of rehabilitation training sessions to restore physical function, particularly limb movement and overall coordination. However, existing rehabilitation training equipment has numerous limitations in practical application and cannot meet the diverse and personalized needs of different patients.

[0003] Most rehabilitation training devices currently on the market are designed for a single body part, such as upper or lower limb rehabilitation. This single-function design cannot meet the comprehensive postoperative rehabilitation needs of cardiac surgery patients. After cardiac surgery, patients not only need to restore limb strength but also require whole-body coordination training to enhance cardiopulmonary function and overall physical function. Single-function devices cannot achieve coordinated training of the upper and lower limbs, resulting in inefficient rehabilitation training and an inability to effectively promote the patient's comprehensive recovery.

[0004] In view of the defects in the existing technology, there is an urgent need for an auxiliary rehabilitation device that can meet the diverse postoperative rehabilitation needs of cardiac surgery patients. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide an auxiliary rehabilitation device for cardiac surgery nursing, which can achieve coordinated training of upper and lower limbs and improve rehabilitation efficiency and effect.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] An auxiliary rehabilitation device for cardiac surgery nursing includes an upper limb training mechanism and a lower limb training mechanism; the lower limb training mechanism includes a base located at the rear of the bed, a pair of piston grooves being provided on the side of the base close to the patient's lower limbs, each of which is slidably fitted with a piston rod, and a foot fixing assembly being provided on the end of the piston rod away from the piston groove, and a resistance adjustment mechanism being connected to each piston groove for adjusting the resistance of the piston rod during movement;

[0008] The upper limb training component comprises a carrier and a supporting mechanism for supporting the carrier; a rotating body is rotatably connected to the carrier.

[0009] The above scheme has the following beneficial effects:

[0010] Principle: The patient lies flat in a comfortable and stable position. They place both feet into the foot-fixing components of the lower limb training mechanism. By securing the soles of their feet to the piston rods, they prevent their feet from sliding or shifting during training. The patient holds the rotating element of the upper limb training mechanism with both hands and uses them to rotate it back and forth within a certain range.

[0011] While performing upper limb exercises, the patient alternates between stepping on the piston rod with both feet. The piston rod slides within the piston groove, and the pedaling action propels the piston rod back and forth. A resistance adjustment mechanism is located within the piston groove, allowing the resistance to the piston rod's movement to be varied by adjusting the hydraulic or pneumatic pressure. The amount of resistance can be adjusted based on the patient's stage of recovery and lower limb strength.

[0012] While the patient is rotating his upper limbs, he needs to coordinate with the pedaling of his lower limbs. This coordinated movement of the upper and lower limbs requires the patient to maintain body balance and coordination during the training process.

[0013] 1. Compared to current rehabilitation training equipment, which mostly targets a single body part (such as the upper or lower limbs) and cannot simultaneously meet the needs of cardiac surgery patients for coordinated upper and lower limb training after surgery, this solution integrates upper and lower limb training mechanisms into a single device, allowing patients to perform coordinated upper and lower limb training simultaneously. This coordinated training method better meets the comprehensive needs of cardiac surgery postoperative rehabilitation and can effectively improve rehabilitation efficiency.

[0014] 2. Compared to single-function rehabilitation equipment that requires patients to use separate devices for upper and lower limb training, this not only increases training time and energy consumption but can also fragment the rehabilitation process, impacting recovery outcomes. This program, through coordinated upper and lower limb training, allows patients to simultaneously exercise multiple body parts in a single session, reducing training time while enhancing cardiopulmonary function and overall coordination. This comprehensive training approach helps accelerate the patient's recovery and improve rehabilitation outcomes.

[0015] 3. Compared to single-function rehabilitation devices that typically only meet the needs of specific patient groups and are difficult to adapt to patients at different stages of recovery and physical conditions, this solution, through personalized resistance adjustment and upper and lower limb coordinated training, can adapt to patients at different stages of recovery. Whether it is early postoperative rehabilitation training or later functional recovery training, it can play an important role and has wide applicability.

[0016] Furthermore, the foot fixing assembly includes a foot pedal; the foot pedal is fixedly connected to the piston column, and a ring is provided on the foot pedal.

[0017] Beneficial Effects: During training, the patient lies flat on the bed, passes each foot through the loops on the footrest, and places the soles of the feet on the footrest. This securement method is not only simple to operate but also ensures foot stability during training. As the patient alternates steps on the piston, the footrest absorbs the pressure of the foot, while the loops prevent the foot from sliding, allowing patients to complete lower limb training more safely and effectively.

[0018] Furthermore, the resistance adjustment mechanism includes several adjusting tubes, all of which are connected to the piston groove, and a first electric valve is provided on the communication path between the adjusting tube and the piston groove, and the other end of the adjusting tube is connected to an elastic airbag; a main pipeline and several flow limiting channels are provided in the adjusting tube, and the flow limiting channels are used to divert the fluid in the main pipeline and flow it back into the main pipeline in a direction opposite to the fluid in the main pipeline. The number of flow limiting channels in each adjusting tube is different.

[0019] Beneficial Effect: As the piston rod moves within the piston groove, it squeezes fluid (such as hydraulic oil or gas) into the regulating tube. After entering the main pipeline, some of the fluid is diverted to the flow restriction channel. After adjusting its flow direction, the fluid in the flow restriction channel flows back into the main pipeline, where it collides with the fluid flowing normally in the main pipeline, generating resistance. This resistance hinders the smooth passage of the fluid, and in turn, the movement of the piston rod.

[0020] By controlling the opening and closing of the first electric valve, different regulating tubes can be selectively connected to the piston groove. Each regulating tube has a different number of flow-limiting channels, resulting in different resistances. By selecting regulating tubes with different resistances, the resistance applied to the piston column can be precisely adjusted to meet the rehabilitation needs of different patients.

[0021] The elastic bladder is used to store and buffer fluid. When fluid is squeezed into the regulating tube, the bladder expands to store the fluid. When the piston rod retracts, the fluid in the bladder is squeezed back into the piston groove, achieving fluid recycling.

[0022] Traditional resistance adjustment methods typically rely on mechanical friction, controlling the resistance by increasing or decreasing friction. Friction components wear out rapidly over long periods of use, leading to unstable resistance and even damage to the device. This friction process also generates significant mechanical noise, impacting the patient experience. This noise can disrupt patient concentration and comfort during rehabilitation training, in particular. Frequent contact and wear of mechanical components significantly shortens the device's lifespan, increasing maintenance and replacement costs.

[0023] In this solution, fluid resistance is generated primarily through fluid flow and impact, rather than mechanical friction. Consequently, virtually no mechanical noise is generated during operation, providing patients with a quieter and more comfortable recovery environment. Because there is no direct contact between mechanical components during resistance adjustment, wear within the device is significantly reduced. Fluid recycling and the cushioning effect of the elastic airbag further reduce wear and tear on mechanical components. This low wear not only extends the device's service life but also reduces maintenance frequency and costs, improving its reliability and affordability.

[0024] At the same time, through the control of the first electric valve, precise regulation and dynamic adjustment of resistance can be achieved to meet the needs of different rehabilitation stages and individual differences, thereby improving the effect and adaptability of rehabilitation training.

[0025] Furthermore, the support mechanism includes a pair of sliding rails opened on the top of the bed; support columns are slidably connected in the sliding rails, and a horizontal movement mechanism for horizontally moving the support columns is provided in any one of the sliding rails. A cross bar is provided between the support columns, and both ends of the cross bar are slidably connected to the support columns respectively, and a vertical lifting mechanism for lifting and lowering the cross bar is provided in any one of the support columns; the cross bar is fixedly connected to the carrier.

[0026] Benefits: The horizontal movement mechanism allows the support columns to move horizontally within the slide rails, thereby adjusting the distance between the support columns. This design allows the position of the upper limb training mechanism to be flexibly adjusted according to the patient's height, arm length, or training needs, making it more suitable for the individual patient's characteristics.

[0027] The vertical lift mechanism allows the crossbar to be moved up and down within the support column, adjusting its height. This height adjustment adapts to the shoulder height of different patients, ensuring they maintain a comfortable posture during training and minimizing discomfort or injury caused by improper posture.

[0028] Furthermore, a hand training mechanism is provided on the handle; the hand training mechanism includes sliding grooves symmetrically opened on the outside of the handle; slip rings are slidably fitted in the sliding grooves, and springs are provided on the outside of the slip rings, and the springs are used to support the slip rings to move toward the center of the handle; a number of outward expansion plates are provided circumferentially on the outside of the handle, and connecting rods are rotatably connected between the outward expansion plates and the slip rings.

[0029] Beneficial effect: The patient holds the expansion plate with his hands and applies force inwards to move the expansion plate toward the center of the handle.

[0030] The movement of the expansion plate is transmitted to the slip ring through the connecting rod, pushing the slip ring to move toward the two ends of the handle.

[0031] When the slip ring moves, it needs to overcome the elastic force of the spring, which provides resistance for the muscles and joints of the hand.

[0032] While patients are doing arm rotation training, they can also perform grip training through the hand training mechanism to achieve coordinated rehabilitation of the upper limbs and hands, and improve rehabilitation efficiency and effectiveness.

[0033] Furthermore, one side of the piston groove is connected to an active training mechanism; the active training mechanism includes a power tube, which connects the piston groove with the outside world; a second electric valve is provided at the connection between the power tube and the piston groove, and a two-way pump is provided on the path connecting the power tube and the outside world.

[0034] Beneficial effects: In the early stages of patient rehabilitation, due to weak physical functions, the patient may not be able to actively train. At this time, close the first electric valve (the valve in the resistance adjustment mechanism) and open the second electric valve. Start the two-way pump, which continuously pumps air (or other fluids) back and forth into the piston groove. The reciprocating flow of the fluid drives the piston column to move back and forth in the piston groove, thereby driving the patient's lower limbs for passive training. As the patient's rehabilitation progresses, the body function gradually recovers, and the patient can start active training. Close the second electric valve, stop the two-way pump, and open the first electric valve. The patient actively trains by stepping on the piston column to push the fluid into the resistance adjustment mechanism.

[0035] Traditional rehabilitation devices typically offer only a single active or passive training mode, making them difficult to adapt to the varying needs of patients from the early postoperative period to the later stages of recovery. By designing an active training mechanism, the device can flexibly switch between passive and active training modes depending on the patient's recovery stage. Patients can begin with passive training in the early stages of recovery, gradually transitioning to active training as recovery progresses, achieving continuity and personalization of rehabilitation training.

[0036] Furthermore, it also includes a hot compress mechanism; the hot compress mechanism includes a radiation plate, which is fixedly connected to the bottom of the carrier, and a circulation pipe is opened in the radiation plate; a water tank is opened in the carrier, and an electric heating pipe is set in the water tank. The water tank and the circulation pipe are connected to each other, and a circulation pump is set on the communication path between the water tank and the circulation pipe.

[0037] Beneficial Effects: When a patient experiences pain in their wound during training, the electric heating tube activates to heat the water in the water tank. Simultaneously, a circulation pump activates, pumping hot water from the water tank and delivering it to the radiant panels through a circulation pipe. The hot water flows through the circulation pipe and transfers heat to the patient's chest wound via the radiant panels. This hot compress promotes local blood circulation, relieves muscle tension, and alleviates pain.

[0038] After flowing through the radiant panels, the hot water returns to the sink through the circulation pipe, where it is reheated and reused. This recycling method not only improves the efficiency of hot compresses but also reduces energy waste.

[0039] Compared to direct-contact heat compresses, which can cause discomfort due to uneven temperature or excessive pressure, radiant heat compresses provide more uniform, gentle heat, avoiding localized overheating or overcooling. They also don't cause pressure on the wound, improving patient comfort. Radiant heat compresses transfer heat through radiation, avoiding direct contact with the wound and minimizing the risk of infection.

[0040] Furthermore, elastic membranes are provided between adjacent outward expansion plates and between the outward expansion plates and the handle.

[0041] Beneficial effects: During training, the patient grasps the expansion plates and applies force inward, causing the expansion plates to move toward the center of the grip. Due to the presence of the elastic membrane, when the expansion plates move, the elastic membrane can deform along with the movement of the expansion plates, thereby avoiding the risk of skin or muscle being trapped between the expansion plates. When the expansion plates move inward, the air between the grip, the expansion plates, and the elastic membrane is squeezed to the vicinity of the elastic membrane. This squeezing of air causes the elastic membrane to expand outward, further cushioning the movement of the expansion plates and reducing the pressure on the patient's hand. At the same time, the expansion of the elastic membrane can also provide a soft touch, improving the grip feel.

[0042] Furthermore, capacitor plates are provided on the side walls of the piston groove and the bottom of the piston column, and the capacitor plates are electrically connected to a control unit. The control unit is used to judge the lower limb training status based on the change in the distance between the two plates and control the operation of each first electric valve.

[0043] Beneficial effects: Capacitor plates are respectively provided on the side walls of the piston groove and the bottom of the piston column to form a capacitive sensor. When the patient performs lower limb training, the piston column moves in the piston groove, causing the distance between the capacitor plates on the side walls of the piston groove and the bottom of the piston column to change. The change in the distance between the two plates will cause a change in the capacitance value. The control unit obtains the position and movement speed of the piston column in real time by monitoring the change in capacitance value. The control unit judges the patient's training intensity and lower limb strength based on the change in capacitance value. If it is detected that the patient's strength is insufficient or the movement speed slows down, the control unit can automatically adjust the opening and closing of the first electric valve to reduce the resistance to adapt to the patient's training ability. If the patient's strength increases, the control unit can increase the resistance to increase the training intensity.

[0044] The control unit can dynamically adjust the resistance based on the patient's real-time training data to ensure the personalization and safety of the training process and realize intelligent training.

[0045] Furthermore, the control unit controls the operation of the first electric valve based on the following logic: based on the extreme value of the distance between the two electrodes in each piston groove, it is judged whether the movement distance of the piston plate meets the standard. If it meets the standard, it is judged that the current training difficulty is appropriate; otherwise, it is judged that the current training difficulty is inappropriate; based on the frequency of change of the distance between the two electrodes in each piston groove, it is judged whether the training difficulty needs to be adjusted. If the frequency is higher than the preset frequency range, it is judged that the training difficulty needs to be increased. If the frequency is within the preset frequency range, it is judged that there is no need to adjust the training difficulty. If the frequency is lower than the preset frequency range, it is judged that the training difficulty needs to be reduced.

[0046] Beneficial Effects: Traditional rehabilitation devices typically require manual resistance adjustment, making it difficult to dynamically adjust the training difficulty based on the patient's real-time abilities. Using intelligent logic, the control unit monitors the patient's training performance in real time and dynamically adjusts the training difficulty based on their abilities. This dynamic adaptation ensures that the training difficulty remains optimal for the patient, thereby enhancing rehabilitation outcomes.

[0047] The control unit automatically adjusts the training difficulty based on the patient's real-time performance. If the patient's ability is insufficient, the system automatically reduces the difficulty to avoid overtraining or injury, ensuring a safe and comfortable training process.

[0048] By dynamically monitoring and adjusting training difficulty, the device can provide each patient with a personalized rehabilitation plan. This personalized design can better meet the rehabilitation needs of different patients and improve rehabilitation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic diagram of the three-dimensional structure of the auxiliary rehabilitation device for cardiac surgery nursing of the present invention.

[0050] Figure 2 for Figure 1 A partial enlarged schematic diagram of point M in the middle.

[0051] Figure 3 for Figure 1 Top view of .

[0052] Figure 4 for Figure 3 Cross-section view in the AA direction.

[0053] Figure 5 for Figure 4 Schematic diagram of the partial internal structure of the middle regulating tube.

[0054] Figure 6 This is a schematic diagram of the structure of the lead screw in the auxiliary rehabilitation device for cardiac surgery nursing of the present invention.

[0055] Figure 7 for Figure 1 Schematic diagram of the internal structure of the middle handle.

[0056] Figure 8 for Figure 1 Schematic diagram of the internal structure of the central radiation panel.

[0057] Figure 9 for Figure 1 Schematic diagram of the internal structure of the carrier.

[0058] The reference numerals in the drawings of the specification include: 1. bed; 2. base; 3. support column; 4. cross bar; 5. carrier; 6. piston column; 7. rotating body; 8. handle; 9. radiation plate; 10. stepping motor; 11. lead screw; 12. nut seat; 13. capacitor plate; 101. slide rail; 201. piston groove; 202. power tube; 203. regulating tube; 204. first electric valve; 205. two-way pump; 206. air bag ; 207, second electric valve; 501, water tank; 502, electric heating pipe; 503, circulation pump; 504, hot water pipe; 505, return pipe; 601, collar; 602, foot pedal; 801, expansion plate; 802, slide; 803, spring; 804, connecting rod; 805, slip ring; 806, collection unit; 807, elastic membrane; 901, circulation pipeline; 2031, flow limiting channel; 2032, main pipeline. DETAILED DESCRIPTION

[0059] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0060] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0061] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0062] The following is further described in detail through specific implementation methods:

[0063] Example 1 is basically as shown in the attached Figures 1-9 The figure shows an auxiliary rehabilitation device for cardiac surgery nursing, comprising a bed 1. The bed 1 serves as the basic framework of the entire rehabilitation device and is made of high-strength steel with a rust-proof surface treatment. The bed 1 is provided with an upper limb training mechanism and a lower limb training mechanism. The lower limb training mechanism comprises a base 2 located at the rear of the bed 1, which is welded and fixedly connected to the bed 1. The base 2 is provided with a pair of piston grooves 201 on the side near the patient's lower limbs. A piston rod 6 is slidably fitted in each of the piston grooves 201. The piston rod 6 is provided with a foot fixing assembly at the end away from the piston groove 201. Specifically, the foot fixing assembly comprises a foot pedal 602 and a collar 601. The foot pedal 602 is made of a non-slip rubber material with a non-slip texture on the surface. The foot pedal 602 is 300 mm long, 150 mm wide, and 20 mm thick and is fixedly connected to the piston rod 6 by bolts. The ring 601 is made of soft silicone material, with an inner diameter of 80 mm, an outer diameter of 100 mm, and a height of 50 mm. It is fixed to the foot pedal 602 by strong glue and is used to fix the patient's foot to ensure the stability of the foot during training.

[0064] The piston groove 201 is connected to a resistance adjustment mechanism for adjusting the resistance of the piston column 6 when it moves. Specifically, the resistance adjustment mechanism includes several adjustment tubes 203, which are combined with the attached Figure 4 As shown, the top of the regulating tube 203 is connected to the piston groove 201, and the first electric valve 204 is installed on the communication path between the regulating tube 203 and the piston groove 201. The bottom of the regulating tube 203 is connected to the elastic airbag 206. In this embodiment, the regulating tubes 203 connected to the same piston groove 201 are all connected to the same airbag 206; the regulating tubes 203 are each provided with a main pipeline 2032 and a plurality of flow limiting channels 2031. Figure 5 As shown, the flow limiting channel 2031 is used to divert the fluid in the main pipeline 2032 and flow it back into the main pipeline 2032 in a direction opposite to the fluid in the main pipeline 2032. The flow limiting channel 2031 is a "J"-shaped structure. The flow limiting channel 2031 and the main pipeline 2032 are combined to form a Tesla valve structure, and the fluid flows from the piston groove 201 to the airbag 206 in the reverse direction. The number of flow limiting channels 2031 in each regulating tube 203 is different. The more flow limiting channels 2031 there are, the greater the resistance, thereby achieving different degrees of resistance adjustment.

[0065] Preferably, one side of the piston groove 201 is connected to an active training mechanism; the active training mechanism includes a power tube 202, which connects the piston groove 201 with the outside world; a second electric valve 207 is installed at the connection between the power tube 202 and the piston groove 201, and a two-way pump 205 is installed on the path connecting the power tube 202 and the outside world.

[0066] Preferably, the side walls of the piston groove 201 and the bottom of the piston column 6 are welded and fixed with capacitor plates 13. Specifically, the capacitor plates 13 in the same piston groove 201 are configured to be arranged in parallel relative to each other to form a parallel plate capacitor structure. The capacitor plates 13 are electrically connected to a control unit. The control unit is used to judge the lower limb training situation based on the change in the spacing between the two plates (representing the capacitor plates 13 on the two piston groove side walls and the bottom of the piston column) (i.e., the spacing between the two capacitor plates 13) and control the operation of each first electric valve 204. Specifically, the control unit calculates the spacing between the two plates using a capacitance calculation formula. Specifically, the capacitance C of the parallel plate capacitor is given by the following formula:

[0067]

[0068] Where C is the capacitance value in farads (F).

[0069] ε is the dielectric constant, which is approximately 8.854×10 for air or vacuum. -12 F / m;

[0070] A is the area of ​​the capacitor plates in square meters;

[0071] d is the distance between the two plates, in meters.

[0072] From the above formula we can get:

[0073]

[0074] ε and A are both constants, and the change in d can be calculated by changing C.

[0075] Preferably, the control unit controls the operation of the first electric valve 204 based on the following logic: based on the extreme value of the distance between the two electrodes in each piston groove 201, it is judged whether the movement distance of the piston plate meets the standard. If it meets the standard, it is judged that the current training difficulty is appropriate; otherwise, it is judged that the current training difficulty is inappropriate; based on the frequency of change of the distance between the two electrodes in each piston groove 201, it is judged whether the training difficulty needs to be adjusted. If the frequency is higher than the preset frequency range, it is judged that the training difficulty needs to be increased. If the frequency is in the preset frequency range, it is judged that there is no need to adjust the training difficulty. If the frequency is lower than the preset frequency range, it is judged that the training difficulty needs to be reduced.

[0076] The upper limb training component includes a carrier 5 and a supporting mechanism for supporting the carrier 5; specifically, the supporting mechanism includes a pair of slide rails 101 opened on the top of the bed 1; support columns 3 are provided in the slide rails 101, and a horizontal movement mechanism for horizontally moving the support columns 3 is provided in any slide rail 101. The support columns 3 are made of high-strength steel and have dimensions of 300 mm in length, 50 mm in width, and 200 mm in height. The bottom thereof is slidably connected to the slide rail 101 and can move horizontally in the slide rail 101.

[0077] A cross bar 4 is provided between the support columns 3, and both ends of the cross bar 4 are respectively connected to the support columns 3 for sliding. Specifically, rails are provided on opposite sides of the two support columns 3 to facilitate the lifting and lowering of the cross bar 4. A vertical lifting mechanism for lifting and lowering the cross bar 4 is provided in any one of the support columns 3; the cross bar 4 is fixedly connected to the carrier 5 by welding, providing stable support for the carrier 5. In this embodiment, the horizontal moving mechanism and the vertical lifting mechanism both adopt the same structure, that is, both include a stepping motor 10, a lead screw 11 and a nut seat 12. The lead screw 11 is driven to rotate by the stepping motor 10, and the rotation of the lead screw 11 drives the nut seat 12 to move. The two nut seats 12 are respectively fixedly connected with bolts at the bottom of any one of the support columns 3 and one end of the cross bar 4, thereby utilizing the nut seat 12 to respectively realize the lifting and lowering of the cross bar 4 and the horizontal movement of the support column 3 (both the horizontal moving mechanism and the vertical lifting mechanism are prior art, and will not be described in detail in this embodiment).

[0078] A rotating body 7 is rotatably connected to the base 2. In this embodiment, the rotating body 7 is a wheel structure. A handle 8 is symmetrically provided on one side of the rotating body 7. The handle 8 is fixed to the rotating body 7 by welding.

[0079] Preferably, in combination with Figure 7 As shown, the handle 8 is also provided with a hand training mechanism; the hand training mechanism includes a slide groove 802 symmetrically opened on the outside of the handle 8; a slip ring 805 is slidably fitted in each of the slide grooves 802, and a spring 803 is provided on the outside of each of the slip rings 805. The spring 803 is used to support the slip ring 805 in its movement toward the center of the handle 8. Specifically, the spring 803 is sleeved within the slide groove 802 of the handle 8; a plurality of outward expansion plates 801 are circumferentially provided on the outside of the handle 8, and connecting rods 804 are rotatably connected between the outward expansion plates 801 and the slip rings 805, with each outward expansion plate 801 being equipped with two connecting rods 804. Preferably, an elastic membrane 807 is wrapped between adjacent outward expansion plates 801 and between the outward expansion plates 801 and the handle 8.

[0080] Combined with attachment Figure 2 , Attachment Figure 8 and attached Figure 9 As shown, it also includes a hot compress mechanism; the hot compress mechanism includes a radiation plate 9, preferably, the radiation plate 9 is shaped as an arc-shaped plate that conforms to the curve of the human chest, the radiation plate 9 is fixed to the bottom of the carrier 5 by welding a plate, and a circulation pipe 901 is opened in the radiation plate 9; a water tank 501 is opened in the carrier 5, an electric heating pipe 502 is installed in the water tank 501, the water tank 501 and the circulation pipe are connected to each other, and a circulation pump 503 is installed on the communication path between the water tank 501 and the circulation pipe. Specifically, a hot water pipe 504 is connected to the top side of the water tank 501, and a return pipe 505 is connected to the bottom side of the water tank 501. The water tank 501 is connected to the two ports of the circulation pipe 901 through the hot water pipe 504 and the return pipe 505, respectively, and the circulation pump 503 is installed at the connection between the hot water pipe 504 and the water tank 501.

[0081] The specific implementation process is as follows:

[0082] The patient lies flat on the bed 1. The horizontal drive mechanism slides the support column 3 to adjust the position of the crossbar 4. The vertical lift mechanism adjusts the height of the crossbar 4 to suit the patient's height and arm length. The patient places both feet on the footrests 602 and passes them through the rings 601 to ensure that the feet are fixed and stable to prevent them from sliding during training.

[0083] The control unit selects the appropriate resistance adjustment tube 203 based on the patient's recovery stage and physical condition. The control unit controls the opening and closing of the first electric valve 204 to connect the selected adjustment tube 203 to the piston groove 201. When the patient begins training, the piston rod 6 reciprocates within the piston groove 201 under the action of foot pedaling. Fluid passing through the Tesla valve structure within the adjustment tube 203 generates resistance, the magnitude of which is determined by the number of flow-restricting channels 2031.

[0084] Passive training mode (initial rehabilitation):

[0085] If the patient is in the early stages of rehabilitation and cannot actively perform lower limb training, the first electric valve 204 can be closed, the second electric valve 207 can be opened, and the two-way pump 205 can be started. The two-way pump 205 continuously pumps air into the piston groove 201, driving the piston rod 6 to move back and forth, achieving passive training.

[0086] Active training mode (late stage of rehabilitation):

[0087] As the patient's recovery progresses, the second electric valve 207 is closed, the bidirectional pump 205 is stopped, and the patient performs active training by stepping on the piston rod 6 on his own.

[0088] The control unit monitors the distance between the capacitor plates 13 in the piston groove 201 in real time, determines the distance and frequency of piston rod 6 movement, and dynamically adjusts the resistance according to a preset logic: if the distance is within the specified range and the frequency is within the preset range, the current resistance is maintained. If the distance is not within the specified range or the frequency is too low, the resistance is reduced. If the frequency is too high, the resistance is increased.

[0089] Upper limb training operation:

[0090] The patient holds the handle 8 with both hands and rotates the rotating body 7 back and forth by moving the handle 8 to perform rotation training of the upper limbs.

[0091] At the same time, the patient can use the hand training mechanism to train hand muscles and joints: the patient grasps the expansion plate 801 and applies inward force, pushing the connecting rod 804 to drive the sliding ring 805 toward the ends of the handle 8, overcoming the elastic force of the spring 803. The elastic force of the spring 803 provides resistance to the hand, and by repeatedly grasping and releasing the expansion plate 801, the hand muscles and joints are trained. The elastic membrane 807 prevents pinching of flesh during training and provides a soft grip.

[0092] Collaborative training

[0093] Coordination of upper and lower limbs: While patients are performing upper limb rotation training, they can achieve whole-body coordination training through the pedaling movements of the lower limbs.

[0094] Improved cardiopulmonary function: Synergistic training enhances patients’ cardiopulmonary function and overall physical function.

[0095] Hot compress function usage:

[0096] When the patient feels pain in the wound during training, the electric heating tube 502 is started to heat the water in the water tank 501. At the same time, the circulation pump 503 is started to transport the hot water to the circulation pipe 901 in the radiation plate 9 through the hot water pipe 504. The radiation plate 9 fits tightly to the wound area near the patient's chest due to its arc-shaped design, and transfers heat through thermal radiation to relieve the pain of the wound. The hot water flows in the circulation pipe 901 and returns to the water tank 501 through the return pipe 505, and is heated again and recycled. The control unit can adjust the power of the electric heating tube 502 and the flow rate of the circulation pump 503 according to the patient's tolerance to ensure that the hot compress temperature is appropriate.

[0097] The only difference between Example 2 and Example 1 is that the expansion plate 801 is further provided with a collection unit 806 for collecting the patient's physiological parameters; it also includes an alarm unit for sending an alarm signal; the control unit is further used to judge the patient's physical condition based on the physiological parameters collected by the collection unit 806, and to control the operation of the alarm unit and the first electric valve 204. Specifically, in this embodiment, the collection unit 806 is integrated with a heart rate sensor, a blood pressure sensor, and a blood oxygen saturation sensor. Each sensor is embedded in the surface or edge of the expansion plate 801 to ensure natural contact when the patient holds it, without affecting the comfort of hand training. The collection unit 806 communicates with the control unit via Bluetooth, Wi-Fi or wired.

[0098] Preferably, the alarm signal includes a visual alarm (e.g., an LED indicator light, green for normal, yellow for warning, and red for emergency), an auditory alarm (e.g., a beep: when a physiological parameter is detected to be outside a preset range, the device will emit a beep of different frequencies) and a remote alarm (e.g., sending the alarm information to the medical staff's mobile phone or tablet device via Bluetooth or Wi-Fi to ensure that the alarm can be received in time even outside the ward), etc.

[0099] Specific implementation process: The heart rate sensor on the expansion board 801 can capture the patient's heart rate changes in real time. During training, heart rate fluctuations can reflect the patient's physical exertion and burden, helping to assess whether the training intensity is appropriate.

[0100] Real-time collection of blood pressure data helps identify whether patients have abnormal conditions such as hypertension or hypotension. Blood pressure stability is particularly important during postoperative recovery.

[0101] Blood oxygen saturation reflects the patient's oxygen supply and is particularly important for patients undergoing cardiac surgery. By monitoring blood oxygen saturation, problems with the respiratory or circulatory system can be detected in a timely manner.

[0102] The control unit will dynamically adjust the training difficulty based on the collected data such as heart rate, blood pressure and blood oxygen saturation. For example:

[0103] When the heart rate is too high, the control unit controls the first electric valve 204 to reduce resistance or slow down the training rhythm.

[0104] When blood pressure is abnormal, the control unit will pause training and control the early warning unit to issue an alarm.

[0105] When the blood oxygen saturation is too low, the system will remind the patient to adjust his breathing or pause training.

[0106] By monitoring the patient's physiological status in real time, physical injuries or discomfort caused by overtraining can be effectively avoided. Combining the patient's physiological parameter data, the control unit can develop a more personalized training plan to ensure that each patient achieves the best recovery effect within a safe range.

[0107] According to the preset physiological parameter threshold, the control unit automatically adjusts the resistance, training rhythm or pauses training.

[0108] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and / or characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An auxiliary rehabilitation device for cardiac surgery nursing, comprising an upper limb training mechanism and a lower limb training mechanism; characterized in that: The lower limb training mechanism comprises a base (2), a pair of piston grooves (201) are provided on a side of the base (2) close to the patient's lower limbs, a piston column (6) is slidably fitted in each of the piston grooves (201), a foot fixing assembly is provided at one end of the piston column (6) away from the piston groove (201), and a resistance adjustment mechanism for adjusting the resistance of the piston column (6) when moving is connected to each of the piston grooves (201); The upper limb training component comprises a carrier (5) and a supporting mechanism for supporting the carrier (5); a rotating body (7) is rotatably connected to the carrier (5).

2. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 1, characterized in that: The foot fixing assembly comprises a foot pedal (602); the foot pedal (602) is fixedly connected to the piston column (6), and a collar (601) is provided on the foot pedal (602).

3. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 1, characterized in that: The resistance adjustment mechanism comprises a plurality of adjustment tubes (203), each of the adjustment tubes (203) being connected to the piston groove (201), each of the adjustment tubes (203) being provided with a first electric valve (204) on the communication path between the adjustment tubes (203) and the piston groove (201), and each of the other ends of the adjustment tubes (203) being connected to an elastic airbag (206); a main pipeline (2032) and a plurality of flow-limiting channels (2031) are provided in each of the adjustment tubes (203), and the flow-limiting channels (2031) are used to divert the fluid in the main pipeline (2032) and flow it back into the main pipeline (2032) in a direction opposite to the fluid in the main pipeline (2032), and the number of flow-limiting channels (2031) in each adjustment tube (203) is different.

4. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 1, characterized in that: The support mechanism comprises a slide rail (101); support columns (3) are slidably connected in the slide rail (101); a horizontal movement mechanism for horizontally moving the support column (3) is provided in any one of the slide rails (101); a cross bar (4) is provided between the support columns (3); both ends of the cross bar (4) are slidably connected to the support columns (3); a vertical lifting mechanism for lifting the cross bar (4) is provided in any one of the support columns (3); and the cross bar (4) is fixedly connected to the carrier (5).

5. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 1, characterized in that: A handle (8) is symmetrically arranged on the rotating body (7), and a hand training mechanism is arranged on the handle (8); the hand training mechanism includes a slide groove (802) symmetrically opened on the outside of the handle (8); a slip ring (805) is slidably fitted in the slide groove (802), and a spring (803) is arranged on the outside of the slip ring (805), and the spring (803) is used to support the slip ring (805) to move toward the center of the handle (8); a plurality of outward expansion plates (801) are circumferentially arranged on the outside of the handle (8), and a connecting rod (804) is rotatably connected between the outward expansion plates (801) and the slip ring (805).

6. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 1, characterized in that: One side of the piston groove (201) is connected to an active training mechanism; the active training mechanism includes a power tube (202), and the power tube (202) connects the piston groove (201) with the outside world; a second electric valve (207) is provided at the connection point between the power tube (202) and the piston groove (201), and a two-way pump (205) is provided on the path connecting the power tube (202) and the outside world.

7. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 1, characterized in that: The invention also includes a hot compress mechanism; the hot compress mechanism includes a radiation plate (9), the radiation plate (9) is fixedly connected to the bottom of the carrier (5), and a circulation pipe (901) is provided in the radiation plate (9); a water tank (501) is provided in the carrier (5), an electric heating pipe (502) is provided in the water tank (501), the water tank (501) and the circulation pipe are connected to each other, and a circulation pump (503) is provided on the communication path between the water tank (501) and the circulation pipe.

8. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 5, characterized in that: Elastic membranes (807) are provided between adjacent outward expansion plates (801) and between the outward expansion plates (801) and the handle (8).

9. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 1, characterized in that: Capacitor plates (13) are provided on the side walls of the piston groove (201) and the bottom of the piston column (6). The capacitor plates (13) are electrically connected to a control unit. The control unit is used to judge the lower limb training situation based on the change in the distance between the two plates and control the operation of each first electric valve (204).

10. The auxiliary rehabilitation device for cardiac surgery nursing according to claim 9, characterized in that: The control unit judges whether the moving distance of the piston plate meets the standard based on the extreme value of the distance between the two electrodes in each piston groove (201). If it meets the standard, the current training difficulty is judged to be appropriate; otherwise, the current training difficulty is judged to be inappropriate; based on the frequency of change of the distance between the two electrodes in each piston groove (201), the control unit judges whether the training difficulty needs to be adjusted. If the frequency is higher than the preset frequency range, the control unit judges that the training difficulty needs to be increased. If the frequency is within the preset frequency range, the control unit judges that the training difficulty does not need to be adjusted. If the frequency is lower than the preset frequency range, the control unit judges that the training difficulty needs to be reduced.

Images