Auxiliary limb exercise device and method for nursing acute and critical diseases

Abstract

The invention relates to the technical field of medical rehabilitation instruments, in particular to an auxiliary limb exercise device and method for critical disease nursing, the auxiliary limb exercise device comprises a linkage plate and a limiting groove formed in the linkage plate, and a limiting rod is slidably mounted in the limiting groove in a limiting manner; the device comprises a linkage plate, a platform and a container on the top of the platform, the linkage plate is rotationally assembled on the platform, the container is located below the linkage plate, a driving piston plate is slidably assembled in the container in a piston mode, the driving piston plate divides the container into an upper energy storage cavity and a lower energy storage cavity, and the two energy storage cavities are filled with shear thickening liquid. A linkage rod is fixed to the top of the driving piston plate, and the top end of the linkage rod penetrates out of the top of the container in a sliding mode and is rotationally connected with a limiting rod in a sleeving mode; the cardiac postoperative lower limb progressive resistance training device can assist a patient to carry out cardiac postoperative lower limb progressive resistance training, and can also prevent the lower limbs of the patient from being collided and damaged due to sudden force loss of the lower limbs of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical rehabilitation equipment, and in particular to an auxiliary limb exercise device and method for emergency and critical care nursing. Background Art

[0002] For the care of critically ill patients, especially those after cardiac surgery, in order to prevent deep vein thrombosis, combat postoperative muscle atrophy and reduce the risk of postoperative delirium, patients need to undergo progressive resistance training of the lower limbs after cardiac surgery.

[0003] At present, most lower limb training devices use elastic accessories, pneumatic or hydraulic accessories to adjust resistance, making it easier for patients to perform lower limb flexion and extension training. However, during the training process, patients may experience weakness due to insufficient muscle strength caused by postoperative muscle atrophy or sudden postpartum side effects such as drug blockers, resulting in sudden loss of control of the patient's lower limbs, loss of balance, and falling injuries. Summary of the invention

[0004] The present invention provides an auxiliary limb training device and method for emergency and critical care nursing, which can assist patients in performing progressive resistance training of lower limbs after cardiac surgery, and can also prevent sudden loss of strength in the patient's lower limbs from causing collision injuries to the lower limbs.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] An auxiliary limb exercise device for emergency and critical care nursing, comprising:

[0007] A linkage plate and a limit groove provided therein, wherein the limit groove has an internal limit sliding installation with a limit rod; a platform and a container on its top, wherein the linkage plate is rotatably mounted on the platform, the container is located below the linkage plate, and the internal piston sliding installation of the container is provided with an active piston plate, the active piston plate divides the container into two upper and lower energy storage chambers, both of which are filled with shear thickening liquid, a linkage rod is fixed on the top of the active piston plate, the top end of the linkage rod slides through the top of the container and is rotatably sleeved on the limit rod; a plurality of viscosity regulators are also mounted on the top of the platform, and the viscosity regulators are connected to the energy storage chamber to control the rate at which the energy storage chamber transfers the shear thickening liquid outward.

[0008] Optionally, the viscosity regulator includes a gear box mounted on the top of the platform, a turntable is rotatably installed inside the gear box, a stroke chamber is opened inside the turntable, a passive piston plate is piston-slidably installed inside the stroke chamber, the passive piston plate divides the stroke chamber into a liquid storage chamber and a buffer chamber, a second flow channel is opened through the inner wall of the passive piston plate, a first flow channel extends outward from the inner wall of the energy storage chamber, the first flow channel is connected with the inside of the energy storage chamber, the first flow channel is in sliding contact with the outer wall of the turntable, and the gear box can adjust the docking area between the second flow channel and the turntable when it rotates, the liquid storage chamber is connected with the first flow channel through the second flow channel, a reset spring is fixedly installed between the inner wall of the buffer chamber and the passive piston plate, and a driver for controlling the rotation of the gear box is installed on the gear box.

[0009] Optionally, the driver includes a plurality of teeth arrayed on the outer wall of the gear box, an incomplete gear is formed between the plurality of teeth and the gear box, a rack is slidably mounted on the gear box, a cylinder for controlling the sliding of the rack is installed on the top of the gear box, and the rack is meshingly connected with the incomplete gear.

[0010] Optionally, a reaction piston plate is slidably installed inside the container below the first flow channel, a pressure sensor is fixedly installed on the inner top of the container, an inertia spring is fixedly installed between the force-bearing surface of the pressure sensor and the bottom of the reaction piston plate, and the elastic coefficient of the inertia spring is greater than the elastic coefficient of the reset spring.

[0011] Optionally, a guide groove is provided on the top of the platform, a slide is electrically controlled and slidably assembled inside the guide groove, and the container and the gear box are both mounted on the top of the slide.

[0012] Optionally, an angle sensor is fixedly mounted on the platform, and an input end of the angle sensor is drivingly connected to an end wall of the rotating shaft.

[0013] Optionally, the top of the linkage plate is connected to a limiting cylinder via a lace, a soft sleeve is installed inside the limiting cylinder, both the limiting cylinder and the soft sleeve are of frustum design, and the soft sleeve can be connected to an external inflatable bag via a hose.

[0014] An auxiliary limb exercise method for emergency and critical care nursing comprises the following steps:

[0015] S1. Place the patient's lower limbs on the linkage board, and make the soft sleeve fully wrap the lower limbs of the patient and adjust them to a comfortable position.

[0016] S2. When the calf is bent and lifted, the linkage plate will rotate with the calf. At the same time, the linkage plate pulls the linkage rod to shear the shear thickening fluid in the energy storage chamber. When the linkage plate works slowly, the shear thickening fluid will flow and be transferred to the viscosity regulator.

[0017] S3. When the patient suddenly loses strength during leg lifting or pre-bending, the gravitational potential energy will drive the active piston plate to quickly act on the shear thickening fluid. At this time, the shear thickening fluid hardens, preventing the linkage plate from continuing to rotate rapidly, thereby reducing damage to the patient.

[0018] Optionally, S2 also includes:

[0019] V1. By rotating the turntable, the docking channel between the first flow channel and the second flow channel changes to change the flow rate of the shear thickening liquid, thereby adjusting the resistance level of the shear thickening liquid. The flow channel becomes narrower, the flow rate of the shear thickening liquid decreases, and the shear rate increases at the same speed, triggering a stronger thickening effect.

[0020] V2. The rotation of the turntable is driven and locked by the cylinder.

[0021] Optionally, in S3, it also includes:

[0022] T1. After the patient loses strength, the rapid rotation of the linkage plate will cause the shear thickening fluid to harden. At this time, all the forces will be transferred to the reaction piston plate, and then transferred to the pressure sensor through the inert spring, thereby triggering the alarm.

[0023] The present invention provides an auxiliary limb exercise device for emergency and critical care nursing, which has the following beneficial effects compared with the prior art:

[0024] The rotation of the linkage plate can be converted into the up and down displacement of the linkage rod. The up and down displacement of the linkage rod will drive the active piston plate to pressurize and shear the shear thickening liquid in one of the energy storage chambers, so that it changes differently according to the shear rate. When the displacement of the active piston plate is slow, it can be determined that the patient is in slow rehabilitation training. At this time, the active piston plate will transfer the shear thickening liquid in the energy storage chamber to the viscosity regulator. At this time, the viscosity of the shear thickening liquid can be used as training resistance, so that the patient can perform progressive resistance training of the lower limbs after cardiac surgery. Secondly, when the displacement of the active piston plate suddenly accelerates, the shear thickening liquid is a typical non-Newtonian fluid, and its viscosity will increase significantly with the increase of shear rate, showing intelligent response characteristics from liquid to solid-like state, thereby preventing the rapid downward movement of the active piston plate and avoiding sudden loss of strength in the patient's lower limbs leading to lower limb collision injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention;

[0026] Figure 2 It is a three-dimensional schematic diagram of a partial structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 A right view structural diagram of ;

[0028] Figure 4 For the present invention Figure 3 Sectional view at AA in the middle;

[0029] Figure 5 It is a schematic diagram of the structure of the soft sleeve and the limiting cylinder of the present invention;

[0030] Figure 6 It is a stereoscopic diagram of a part of the structure of the present invention at another viewing angle.

[0031] In the figure: 1. linkage plate; 2. limiting cylinder; 3. soft sleeve; 4. platform; 5. container; 6. linkage rod; 7. limiting rod; 8. limiting groove; 9. gear box; 11. rotating shaft; 12. active piston plate; 13. reaction piston plate; 14. pressure sensor; 15. rack; 16. turntable; 17. first flow channel; 18. passive piston plate; 19. second flow channel; 20. angle sensor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 6 The present invention provides a technical solution: an auxiliary limb exercise device for emergency and critical care nursing, comprising:

[0034] The linkage plate 1 and the limit groove 8 opened therein, the limit rod 7 is installed in the limit groove 8; the platform 4 and the container 5 on the top thereof, the linkage plate 1 is rotatably assembled on the platform 4, the container 5 is located below the linkage plate 1, and the internal piston sliding of the container 5 is equipped with an active piston plate 12, the active piston plate 12 divides the container 5 into two upper and lower energy storage chambers, the interiors of the two energy storage chambers are both filled with shear thickening liquid, the top of the active piston plate 12 is fixed with a linkage rod 6, the top end of the linkage rod 6 slides through the top of the container 5 and is rotatably sleeved on the limit rod 7; a plurality of viscosity regulators are also installed on the top of the platform 4, the viscosity regulators are connected to the energy storage chamber to control the rate at which the energy storage chamber transfers the shear thickening liquid outward.

[0035] In the prior art, during the training process after cardiac surgery, patients may experience weakness due to insufficient muscle strength caused by postoperative muscle atrophy or sudden postpartum side effects such as drug blockers, which may lead to sudden loss of control of the patient's lower limbs, loss of balance, and falling injuries. In order to reduce and avoid the occurrence of such dangerous accidents, in the present invention, firstly, through the cooperation of the linkage rod 6, the limit rod 7 and the limit groove 8, the rotation of the linkage plate 1 is converted into the up and down displacement of the linkage rod 6. The up and down displacement of the linkage rod 6 will drive the active piston plate 12 to pressurize and shear the shear thickening liquid in one of the energy storage chambers, so that it changes differently according to the shear rate. When the displacement of the active piston plate 12 is slow, it can be determined that the patient is in slow rehabilitation training. At this time, the active piston plate 12 will transfer the shear thickening liquid in the energy storage chamber to the viscosity regulator. At this time, the viscosity of the shear thickening liquid can be used as training resistance, so that the patient can perform progressive resistance training of the lower limbs after cardiac surgery.

[0036] On the contrary, when the displacement of the active piston plate 12 suddenly accelerates, it can be understood that the acceleration of the active piston plate 12 suddenly increases, and the shear thickening fluid is a typical non-Newtonian fluid, and its viscosity will increase significantly with the increase of shear rate, showing an intelligent response characteristic from liquid to quasi-solid state, thereby preventing the active piston plate 12 from moving downward rapidly, avoiding sudden loss of strength in the patient's lower limbs and causing collision injuries to the lower limbs. Loss of strength also means that the lower limbs are out of control, which is prone to other dangerous accidents.

[0037] Another function of the viscosity regulator is to receive the shear thickening fluid from the energy storage chamber.

[0038] The viscosity regulators can be stacked to satisfy the control of the shear thickening liquid in the two energy storage chambers, but not all of them are shown in the figure, nor is a schematic diagram of the stacking coordination shown.

[0039] Among them, the more preferred embodiment is that the viscosity regulator includes a gear box 9 mounted on the top of the platform 4, a turntable 16 is rotatably installed inside the gear box 9, a stroke chamber is opened inside the turntable 16, a passive piston plate 18 is piston-slidably installed inside the stroke chamber, the passive piston plate 18 divides the stroke chamber into a liquid storage chamber and a buffer chamber, a second flow channel 19 is opened through the inner wall of the passive piston plate 18, a first flow channel 17 extends outward from the inner wall of the energy storage chamber, the first flow channel 17 is connected with the inside of the energy storage chamber, the first flow channel 17 is in sliding contact with the outer wall of the turntable 16, the gear box 9 can adjust the docking area between the second flow channel 19 and the turntable 16 when it rotates, the liquid storage chamber is connected with the first flow channel 17 through the second flow channel 19, a reset spring is fixedly installed between the inner wall of the buffer chamber and the passive piston plate 18, and a driver for controlling the rotation of the gear box 9 is installed on the gear box 9.

[0040] See also Figure 4In this embodiment, in order to adapt to the resistance requirements of patients at different stages, this embodiment controls the change of the docking channel between the first flow channel 17 and the second flow channel 19 to change the flow rate of the shear thickening liquid, thereby adjusting the resistance level of the shear thickening liquid. The flow channel becomes narrower, the flow rate of the shear thickening liquid decreases, and the shear rate increases at the same speed, triggering a stronger thickening effect, thereby completing the viscosity adjustment of the shear thickening liquid.

[0041] When the passive piston plate 18 is displaced, the return spring will also deform to accumulate elastic potential energy for subsequent return power.

[0042] The return spring is not shown in the figure.

[0043] Based on the viscosity regulator embodiment, an implementation scheme of a driver is provided, wherein the driver includes a plurality of teeth arrayed on the outer wall of a gear box 9, wherein the plurality of teeth and the gear box 9 form an incomplete gear, a rack 15 is slidably mounted on the gear box 9, and a cylinder for controlling the sliding of the rack 15 is mounted on the top of the gear box 9, and the rack 15 is meshedly connected with the incomplete gear. In this embodiment, when the rack 15 moves up and down, it can drive the turntable 16 to rotate, and the rotation of the turntable 16 will change the docking channel between the first flow channel 17 and the second flow channel 19. Similarly, the turntable 16 can also be rotated to close the first flow channel 17, thereby closing the connection between the energy storage chamber and the viscosity regulator.

[0044] On the basis of the viscosity regulator embodiment, a reaction piston plate 13 is slidably installed inside the container 5 located below the first flow channel 17, a pressure sensor 14 is fixedly installed on the inner top of the container 5, and an inert spring is fixedly installed between the force-bearing surface of the pressure sensor 14 and the bottom of the reaction piston plate 13. The elastic coefficient of the inert spring is greater than the elastic coefficient of the reset spring. In this embodiment, when the patient suddenly loses strength, the shear thickening liquid is subjected to a faster shear pressure. At this time, the shear thickening liquid quickly thickens or solidifies, resulting in the shear thickening liquid being unable to be normally transferred to the viscosity regulator. At this time, the solidified shear thickening liquid will transfer the pressure from the active piston plate 12 to the surface of the reaction piston plate 13, thereby transmitting it to the pressure sensor 14. The pressure sensor 14 will issue an alarm when receiving a sudden or increased pressure signal to alert the staff.

[0045] On the basis of the viscosity regulator embodiment, a guide groove is provided on the top of the platform 4, a slide table is electrically controlled and slidably assembled inside the guide groove, and the container 5 and the gear box 9 are both mounted on the top of the slide table.

[0046] Furthermore, an angle sensor 20 is fixedly installed on the platform 4, and the input end of the angle sensor 20 is transmission-connected to the end wall of the rotating shaft 11. By installing the angle sensor 20, the activity angles of the patient's flexion and extension movements can be collected, thereby better assisting the patient's rehabilitation training.

[0047] Furthermore, the top of the linkage plate 1 is connected to the limiting cylinder 2 by a lace, and a soft sleeve 3 is installed inside the limiting cylinder 2. Both the limiting cylinder 2 and the soft sleeve 3 are of cone design. The soft sleeve 3 can be connected to the external inflatable bag through a hose. Using the soft sleeve 3 as an intermediate layer, the soft sleeve 3 can fully wrap the lower limbs of the patient. When loss of strength occurs, the soft sleeve 3 can play a certain buffering and protective role. Secondly, it can cooperate with the limiting cylinder 2 to limit the lower limbs of the patient on the linkage plate 1, thereby ensuring the integrity of the lower limb resistance training.

[0048] The cooperation of the above structures can assist patients in performing progressive resistance training of lower limbs after cardiac surgery, and can also prevent sudden loss of strength in the patients' lower limbs from causing collision injuries to the lower limbs.

[0049] An auxiliary limb exercise method for emergency and critical care nursing comprises the following steps:

[0050] S1. Place the patient's lower limbs on the linkage plate 1, and make the soft sleeve 3 fully wrap the lower limb of the patient and adjust it to a comfortable position.

[0051] S2. When the calf is bent and lifted, the linkage plate 1 will rotate with the calf. At the same time, the linkage plate 1 pulls the linkage rod 6 to perform shear work on the shear thickening liquid in the energy storage chamber. When the linkage plate 1 works slowly, the shear thickening liquid will flow and be transferred to the viscosity regulator.

[0052] S3. When the patient suddenly loses strength during leg lifting or pre-bending, the active piston plate 12 will be driven by gravitational potential energy to quickly act on the shear thickening liquid. At this time, the shear thickening liquid hardens, preventing the linkage plate 1 from continuing to rotate rapidly, thereby reducing damage to the patient.

[0053] Furthermore, in S2, it also includes:

[0054] V1. By rotating the turntable 16, the docking channel between the first flow channel 17 and the second flow channel 19 is changed to change the flow rate of the shear thickening liquid, thereby adjusting the resistance level of the shear thickening liquid, the flow channel becomes narrower, the flow rate of the shear thickening liquid is reduced, and the shear rate is increased at the same speed, triggering a stronger thickening effect.

[0055] V2, the rotation of the turntable 16 is driven and locked by the cylinder.

[0056] Furthermore, S3 also includes:

[0057] T1. After the patient loses strength, the rapid rotation of the linkage plate 1 will cause the shear thickening fluid to harden. At this time, all the forces will be transferred to the reaction piston plate 13, and then transferred to the pressure sensor 14 through the inert spring, thereby triggering an alarm.

[0058] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary limb exercise device for emergency and critical care, characterized in that: include: A linkage plate (1) and a limiting groove (8) provided therein, wherein a limiting rod (7) is slidably mounted inside the limiting groove (8); A platform (4) and a container (5) on the top thereof, the linkage plate (1) is rotatably mounted on the platform (4), the container (5) is located below the linkage plate (1), the interior of the container (5) is piston-type slidably mounted with an active piston plate (12), the active piston plate (12) divides the container (5) into two upper and lower energy storage chambers, the interiors of the two energy storage chambers are both filled with shear thickening liquid, a linkage rod (6) is fixed on the top of the active piston plate (12), the top end of the linkage rod (6) slides through the top of the container (5) and is rotatably sleeved on the limit rod (7); A plurality of viscosity regulators are also installed on the top of the platform (4), and the viscosity regulators are connected to the energy storage cavity to control the rate at which the energy storage cavity transfers the shear thickening liquid outward.

2. The auxiliary limb exercise device for emergency and critical care according to claim 1, characterized in that: The viscosity regulator comprises a gear box (9) mounted on the top of the platform (4), a rotating disk (16) is rotatably mounted inside the gear box (9), a travel cavity is provided inside the rotating disk (16), a passive piston plate (18) is piston-slidably mounted inside the travel cavity, the passive piston plate (18) divides the travel cavity into a liquid storage cavity and a buffer cavity, a second flow channel (19) is penetrated through the inner wall of the passive piston plate (18), and a first flow channel (19) is extended outward from the inner wall of the energy storage cavity. 17), the first flow channel (17) is connected to the inside of the energy storage chamber, the first flow channel (17) is in sliding contact with the outer wall of the turntable (16), the gear box (9) is capable of adjusting the docking area between the second flow channel (19) and the turntable (16) when the gear box (9) rotates, the liquid storage chamber is connected to the first flow channel (17) through the second flow channel (19), a return spring is fixedly installed between the inner wall of the buffer chamber and the passive piston plate (18), and a driver for controlling the rotation of the gear box (9) is installed on the gear box (9).

3. The auxiliary limb exercise device for emergency and critical care according to claim 2, characterized in that: The driver comprises a plurality of teeth arranged in an array on the outer wall of a gear box (9), wherein an incomplete gear is formed between the plurality of teeth and the gear box (9), a rack (15) is slidably mounted on the gear box (9), a cylinder for controlling the sliding of the rack (15) is mounted on the top of the gear box (9), and the rack (15) is meshedly connected with the incomplete gear.

4. The auxiliary limb exercise device for emergency and critical care according to claim 2, characterized in that: A reaction piston plate (13) is slidably mounted inside the container (5) below the first flow channel (17), a pressure sensor (14) is fixedly mounted on the inner top of the container (5), an inertia spring is fixedly mounted between the force-bearing surface of the pressure sensor (14) and the bottom of the reaction piston plate (13), and the elastic coefficient of the inertia spring is greater than the elastic coefficient of the reset spring.

5. The auxiliary limb exercise device for emergency and critical care according to claim 2, characterized in that: A guide groove is provided on the top of the platform (4), a slide table is electrically controlled and slidably mounted inside the guide groove, and the container (5) and the gear box (9) are both mounted on the top of the slide table.

6. The auxiliary limb exercise device for emergency and critical care according to any one of claims 1 to 5, characterized in that: An angle sensor (20) is fixedly mounted on the platform (4), and an input end of the angle sensor (20) is drivingly connected to an end wall of the rotating shaft (11).

7. The auxiliary limb exercise device for emergency and critical care according to claim 6, characterized in that: The top of the linkage plate (1) is connected to a limiting cylinder (2) via a lacing strap, a soft sleeve (3) is installed inside the limiting cylinder (2), both the limiting cylinder (2) and the soft sleeve (3) are of a frustum design, and the soft sleeve (3) can be connected to an external inflatable bag via a hose.

8. A method for auxiliary limb exercise for emergency and critical care, characterized in that: The following steps are involved: S1. Place the lower leg of the patient's lower limb on the linkage plate (1), and make the soft sleeve (3) fully wrap the lower leg of the patient's lower limb and adjust it to a comfortable position; S2, when the calf is bent and lifted, the linkage plate (1) rotates with the calf, and at the same time, the linkage plate (1) pulls the linkage rod (6) to perform shear work on the shear thickening liquid in the energy storage chamber. When the linkage plate (1) works slowly, the shear thickening liquid will flow and be transferred to the viscosity regulator; S3. When the patient suddenly loses strength during leg lifting or pre-bending, the gravitational potential energy will drive the active piston plate (12) to quickly act on the shear thickening liquid. At this time, the shear thickening liquid hardens, preventing the linkage plate (1) from continuing to rotate rapidly, thereby reducing damage to the patient.

9. The auxiliary limb training method for emergency and critical care according to claim 8, characterized in that: In S2, it also includes: V1. By rotating the turntable (16), the connection channel between the first flow channel (17) and the second flow channel (19) is changed to change the flow rate of the shear thickening liquid, thereby adjusting the resistance level of the shear thickening liquid. The flow channel becomes narrower, the flow rate of the shear thickening liquid decreases, and the shear rate increases at the same speed, triggering a stronger thickening effect; V2, the rotation of the turntable (16) is driven and locked by the cylinder.

10. The auxiliary limb training method for emergency and critical care according to claim 8, characterized in that: In S3, it also includes: T1. After the patient loses strength, the linkage plate (1) rotates rapidly to cause the shear thickening fluid to harden. At this time, all the forces are transferred to the reaction piston plate (13) and then to the pressure sensor (14) through the inertia spring, thereby triggering an alarm.

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