Preventive cervical spinal cord injury upper limb joint contracture support pad with stress sensing

Abstract

The utility model discloses preventive cervical spinal cord injury upper limb joint contracture support pad with stress response belongs to upper limb joint support pad technical field. Including the pad plate, the headrest, the arm support unit, stress response unit and finger part stopper, the headrest is fixed in the pad plate upper end middle part, the arm support unit includes the elevating gear fixed in pad plate upper part one side, the elevating gear top is fixed with the rotary table, the rotary table top is fixed with the arm part limiting unit, the arm part limiting unit includes the concave table pad of horizontal cross section, is seted up with the through slot in the table pad, the rotary table is seted up with a ring limit hole in rotary end periphery, the through slot inboard is provided with the lock pin of limit hole plug -in, preventive cervical spinal cord injury upper limb joint contracture support pad with stress response of the utility model can carry out stress monitoring to upper limb joint, guarantees that support pad supports the upper limb joint to be in place, and can satisfy the individualized support demand of patient.

Description

Technical Field

[0001] This utility model specifically relates to a stress-sensitive support pad for preventing upper limb joint contractures caused by cervical spinal cord injury, belonging to the technical field of upper limb joint support pads. Background Technology

[0002] Cervical spinal cord injury is a serious neurological injury. Patients often experience symptoms such as quadriplegia, urinary retention, intercostal muscle paralysis, and respiratory weakness after injury. During rehabilitation, due to prolonged bed rest and limited limb movement, upper limb joints are prone to contractures. Specifically, the upper limb joints lose elasticity due to prolonged shortening, leading to limited range of motion. Upper limb joint contractures severely impact patients' daily living abilities. To prevent these contractures, support pads are often used during patient care. However, existing support pads for cervical spinal cord injury patients are mostly single-function, providing only basic support and failing to monitor stress changes in the upper limb joints in real time. This makes it impossible to ensure adequate or excessive support for the upper limb joints. Furthermore, the lack of effective monitoring of upper limb joint stress during rehabilitation makes it difficult for medical staff to detect abnormal joint stress in a timely manner. In addition, the comfort and adaptability of existing support pads need improvement, failing to adequately meet the individual needs of different patients. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes a stress-sensing support pad for preventing upper limb joint contractures caused by cervical spinal cord injury. This pad can monitor stress in the upper limb joints, ensuring adequate support and meeting the individualized support needs of patients.

[0004] This utility model discloses a stress-sensitive support pad for preventing cervical spinal cord injury and upper limb joint contracture, comprising: pad, The headrest is fixed to the middle of the upper end of the pad. An arm support unit includes a lifting unit fixed to one side of the upper part of a pad. A rotary table is fixed to the top of the lifting unit, and an arm limiting unit is fixed to the top of the rotary table. The arm limiting unit includes a platform pad with a concave cross-section. A through groove is provided on the platform pad. A ring-shaped limiting hole is provided around the rotary end of the rotary table. A locking pin that inserts into the limiting hole is provided inside the through groove. Multiple first Velcro straps are provided on the top of the platform pad. The stress sensing unit includes a pull rod inserted into the end of a platform pad, and an elastic pin is provided on the side of the platform pad for insertion and removal of the pull rod; a detection base is fixed to the outer end of the pull rod, and a stress transmitter is provided on the top of the detection base, and the stress transmitter is connected to an alarm through a controller. A finger limiter, the finger limiter including a leather pad that is movably bonded to a first Velcro fastener, and a five-finger collar fixed on the leather pad.

[0005] When the patient needs to lie on their side, place their head against the headrest and position their body on their side. Then, adjust the angle of the arm support unit according to the arm's extended angle. First, pull up the locking pin. At this time, the table pad can rotate and adjust its angle along the turntable. When the angle is adjusted to be on the same axis as the arm, insert the locking pin into the limiting hole to lock the position of the table pad. Next, put the five-finger loop of the finger limiter on the rootless finger and straighten the arm so that the leather pad of the finger limiter is pressed against the first Velcro. The adhesion position between the finger limiter and the first Velcro can be adjusted according to the arm length. At this time, the first Velcro and the leather pad are movably bonded (side A and side B of the Velcro are bonded). Next, to achieve full support for the arm, the elastic pin is pulled outward, compressing the spring body. Then, the detection platform is pulled outward, and the pull rod of the detection platform slides along the platform pad, bringing the detection platform closer to the patient's armpit. At this point, the detection platform can support the patient's upper arm. The elastic pin is released, locking the position of the elastic pin and the pull rod. Next, the lifting unit is controlled to raise and lower, adjusting the platform pad and stress sensing unit. When the stress sensing unit is raised until the arm is nearly perpendicular to the torso, the stress transmitter sends a signal to the controller, which then activates the alarm. This completes the adjustment of the upper limb joint position. In subsequent use, the alarm will sound when the stress exceeds the set value.

[0006] Furthermore, a second Velcro fastener is provided on the side of the pad away from the arm support unit. A backrest is movably attached to the second Velcro fastener. The backrest includes a cushion, and multiple sets of triangular supports are fixed to the back of the cushion. The bottom of the triangular supports is movably attached to the second Velcro fastener. When the patient lies on their side, the backrest can support the patient's back. The backrest is supported by the triangular supports. The triangular supports cooperate with the second Velcro fastener to limit the position of the support pad.

[0007] Furthermore, a right-angle mounting plate is attached to the top of the testing platform. The right-angle mounting plate has through holes at its four ends, through which shoulder bolts move. The shoulder bolts are fixed to the testing platform, and the stress transmitter is fixed between the testing platform and the right-angle mounting plate. The right-angle mounting plate is limited by the shoulder bolts, which prevent the right-angle mounting plate from slipping. When the right-angle mounting plate is subjected to pressure, it can transmit the pressure to the stress transmitter, which then transmits the pressure value to the controller.

[0008] Furthermore, the detection platform is hollow inside and has a concave top surface. Detection slots are provided on both sides of the detection platform. A tension sensing unit is fixed to the bottom of the inner side of the detection platform. A belt passes through the detection slots. The two ends of the belt move through guide rollers and are fixed to the tension end of the tension sensing unit. When the arm presses against the belt, the two ends of the belt form a closed loop through the guide rollers and the tension sensing unit, thereby providing hollow support for the arm. When the arm presses down on the belt, the two ends of the belt transmit the tension to the tension sensing unit through the guide rollers, thereby monitoring the pressure between the upper limb joint and the support pad.

[0009] Furthermore, the lifting unit includes a lower seat fixed to the pad, and multiple guide rods are slidably arranged at the four ends of the lower seat. The top of the guide rods is screwed to the upper seat. A lifting driver is provided inside the lower seat, and the lifting end of the lifting driver is fixed to the top surface of the upper seat. The lifting driver is fixed inside the lower seat, and the lifting end of the lifting driver drives the upper seat to move up and down. During the movement, it is guided linearly by the guide rods.

[0010] Furthermore, the lifting drive is a hand-cranked jack. In use, the hand-cranked jack is driven to move, thereby driving the upper body to rise or fall. When the alarm is triggered, rotation stops.

[0011] Furthermore, the lifting actuator includes an airbag or cylinder, which is connected to an air pump and an electrically controlled exhaust valve. The air pump and the electrically controlled exhaust valve work together to adjust the air pressure inside the airbag or cylinder, thereby adjusting the height of the platform. The air pump, the electrically controlled exhaust valve, and the stress transmitter work together to monitor the pressure of the arm on the platform in real time. When the pressure is too high or too low, the air pump and the electrically controlled exhaust valve can dynamically respond to bring the pressure within the set range.

[0012] Compared with existing technologies, the stress-sensing preventive upper limb joint contracture support pad for cervical spinal cord injury of this utility model can be personalized according to the patient's arm length and arm extension angle to meet the patient's personalized support needs; then, the height of the support pad can be adjusted through the lifting unit. During the adjustment, stress monitoring of the upper limb joint can be performed to ensure that the support pad supports the upper limb joint in place, and real-time stress monitoring and alarm can be performed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the upper limb joint contracture support pad of this utility model.

[0014] Figure 2 This is a schematic diagram of an installation embodiment of the arm support unit, stress sensing unit, and finger limiter of this utility model.

[0015] Figure 3 This is a schematic diagram of another installation embodiment of the arm support unit, stress sensing unit, and finger limiter of this utility model.

[0016] Figure 4 This is a schematic diagram of one embodiment of the lifting unit of this utility model.

[0017] Figure 5 This is a schematic diagram of another embodiment of the lifting unit of this utility model.

[0018] Reference numerals: 1. Pad, 2. Headrest, 3. Rotary table, 4. Table pad, 5. Through groove, 6. Locking pin, 7. First Velcro strap, 8. Pull rod, 9. Elastic pin, 10. Testing platform, 11. Leather pad, 12. Five-finger collar, 13. Second Velcro strap, 14. Backrest cushion, 15. Triangular support, 16. Right-angle mounting plate, 17. Shoulder bolt, 18. Belt body, 19. Guide roller, 20. Lower seat body, 21. Guide rod, 22. Upper seat body, 23. Hand-cranked jack, 24. Airbag, 25. Air pump, 26. Stress sensing unit. Detailed Implementation

[0019] Example 1: like Figures 1 to 5 The stress-sensitive support pad for preventing upper limb joint contractures due to cervical spinal cord injury, as shown, includes: Pad 1, Headrest 2, which is fixed to the middle of the upper end of pad 1; The arm support unit includes a lifting unit fixed to one side of the upper part of the pad 1. A rotary table 3 is fixed to the top of the lifting unit. An arm limiting unit is fixed to the top of the rotary table 3. The arm limiting unit includes a platform pad 4 with a concave cross-section. A through groove 5 is provided on the platform pad 4. A ring limiting hole is provided on the outer periphery of the rotary table 3 at the rotating end. A locking pin 6 that is inserted into the limiting hole is provided inside the through groove 5. Multiple first Velcro straps 7 are provided on the top of the platform pad 4. The stress sensing unit 26 includes a pull rod 8 inserted into the end of the platform 4, and an elastic pin 9 that is plugged into and connected to the pull rod 8 on the side of the platform 4; a detection base 10 is fixed to the outer end of the pull rod 8, and a stress transmitter is provided on the top of the detection base 10. The stress transmitter is connected to the alarm through a controller. A finger limiter, the finger limiter including a leather pad 11 that is movably bonded to a first Velcro 7, and a five-finger collar 12 fixed on the leather pad 11.

[0020] When the patient needs to lie on their side, place their head against the headrest 2 and position their body on their side. Then, adjust the angle of the arm support unit according to the arm's extended angle. First, pull up the locking pin 6. At this time, the table pad 4 can rotate and adjust its angle along the rotary table 3. When the angle is adjusted to be on the same axis as the arm, insert the locking pin 6 into the limiting hole to lock the position of the table pad 4. Next, put the five-finger collar 12 of the finger limiter on the rootless finger and straighten the arm so that the leather pad 11 of the finger limiter is pressed onto the first Velcro 7. The adhesion position between the finger limiter and the first Velcro 7 can be adjusted according to the arm length. At this time, the first Velcro 7 and the leather pad 11 are movably bonded (side A and side B of the Velcro are bonded). Then To achieve full support for the arm, the elastic pin 9 is pulled outward, compressing the spring body. Then, the detection platform 10 is pulled outward, and the pull rod 8 of the detection platform 10 slides along the platform pad 4, causing the detection platform 10 to move closer to the patient's armpit. At this time, the detection platform 10 can support the patient's upper arm. The elastic pin 9 is released, locking the position of the elastic pin 9 and the pull rod 8. Then, the lifting unit is controlled to raise and lower, realizing the vertical adjustment of the platform pad 4 and the stress sensing unit 26. When the stress sensing unit 26 is raised until the arm is close to perpendicular to the torso, the stress transmitter sends a signal to the controller, and the controller controls the alarm to sound, completing the adjustment of the upper limb joint position. In subsequent use, when the stress exceeds the set value, the alarm will sound.

[0021] The pad 1 has a second Velcro 13 on the side away from the arm support unit. A backrest is movably glued to the second Velcro 13. The backrest includes a cushion 14. Multiple sets of triangular supports 15 are fixed to the back of the cushion 14. The bottom of the triangular supports 15 is movably glued to the second Velcro 13. When the patient is lying on their side, the backrest 14 can support the patient's back. The backrest 14 is supported by the triangular supports 15. The triangular supports 15 cooperate with the second Velcro 13 to limit the position of the support pad.

[0022] The top of the testing platform 10 is fitted with a right-angle mounting plate 16. The right-angle mounting plate 16 has through holes at its four ends. Shoulder bolts 17 move through the through holes and are fixed to the testing platform 10. The stress transmitter is fixed between the testing platform 10 and the right-angle mounting plate 16. The right-angle mounting plate 16 is limited by the shoulder bolts 17, which prevent the right-angle mounting plate 16 from slipping off. When the right-angle mounting plate 16 is subjected to pressure, it can transmit the pressure to the stress transmitter, which then transmits the pressure value to the controller.

[0023] The detection platform 10 is hollow inside and has a concave top surface. Detection slots are provided on both sides of the detection platform 10. A tension sensing unit is fixed to the bottom of the inner side of the detection platform 10. A belt 18 passes through the detection slots. The two ends of the belt 18 are movably connected to guide rollers 19 and fixed to the tension end of the tension sensing unit. When the arm presses against the belt 18, the two ends of the belt 18 form a closed loop through the guide rollers 19 and the tension sensing unit, thereby providing hollow support for the arm. When the arm presses down on the belt 18, the two ends of the belt 18 transmit the tension to the tension sensing unit through the guide rollers 19, thereby monitoring the pressure between the upper limb joint and the support pad.

[0024] The lifting unit includes a lower seat 20 fixed to the pad 1. Multiple guide rods 21 are slidably arranged at four ends of the lower seat 20. The top of the guide rods 21 is screwed to the upper seat 22. A lifting driver is provided inside the lower seat 20. The lifting end of the lifting driver is fixed to the top surface of the upper seat 22. The lifting driver is fixed inside the lower seat 20, and the lifting end of the lifting driver drives the upper seat 22 to move up and down. During the movement, it is guided linearly by the guide rods 21.

[0025] The lifting drive is a hand-cranked jack 23. In use, the hand-cranked jack 23 is driven by the crank of the hand-cranked jack 23, thereby driving the upper body 22 to rise or fall. When the alarm is triggered, the rotation stops.

[0026] The lifting actuator includes an airbag 24 or a cylinder, which is connected to an air pump 25 and an electrically controlled exhaust valve. The air pump 25 and the electrically controlled exhaust valve work together to adjust the air pressure inside the airbag 24 or the cylinder, thereby adjusting the height of the platform 4. The air pump 25, the electrically controlled exhaust valve, and the stress transmitter work together to monitor the pressure of the arm on the platform 4 in real time. When the pressure is too high or too low, the air pump 25 and the electrically controlled exhaust valve can dynamically respond to bring the pressure within the set range.

[0027] The above embodiments are merely preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model are included within the scope of the present utility model.

Claims

1. A stress-sensitive support pad for preventing cervical spinal cord injury and upper limb joint contractures, characterized in that, include: pad; The headrest is fixed to the middle of the upper end of the pad. An arm support unit includes a lifting unit fixed to one side of the upper part of a pad. A rotary table is fixed to the top of the lifting unit, and an arm limiting unit is fixed to the top of the rotary table. The arm limiting unit includes a platform pad with a concave cross-section. A through groove is provided on the platform pad. A ring-shaped limiting hole is provided around the rotary end of the rotary table. A locking pin that inserts into the limiting hole is provided inside the through groove. Multiple first Velcro straps are provided on the top of the platform pad. The stress sensing unit includes a pull rod inserted into the end of a platform pad, and an elastic pin is provided on the side of the platform pad for insertion and removal of the pull rod; a detection base is fixed to the outer end of the pull rod, and a stress transmitter is provided on the top of the detection base, and the stress transmitter is connected to an alarm through a controller. A finger limiter, the finger limiter including a leather pad that is movably bonded to a first Velcro fastener, and a five-finger collar fixed on the leather pad.

2. The stress-sensitive upper limb joint contracture support pad for cervical spinal cord injury according to claim 1, characterized in that: A second Velcro strap is provided on the side of the pad away from the arm support unit. A backrest is movably attached to the second Velcro strap. The backrest includes a cushion. Multiple sets of triangular supports are fixed to the back of the cushion. The bottom of the triangular supports is movably attached to the second Velcro strap.

3. The stress-sensitive upper limb joint contracture support pad for cervical spinal cord injury according to claim 1, characterized in that: The top of the testing platform is fitted with a right-angle mounting plate, and the right-angle mounting plate has through holes at its four ends. Shoulder bolts move through the through holes and are fixed to the testing platform. The stress transmitter is fixed between the testing platform and the right-angle mounting plate.

4. The stress-sensitive upper limb joint contracture support pad for cervical spinal cord injury according to claim 1, characterized in that: The testing platform is hollow inside and has a concave top surface. Testing slots are provided on both sides of the testing platform. A tension sensing unit is fixed at the bottom of the inner side of the testing platform. A belt passes through the testing slots. The two ends of the belt are movably connected to guide rollers and fixed to the tension end of the tension sensing unit.

5. The stress-sensitive upper limb joint contracture support pad for cervical spinal cord injury according to claim 1, characterized in that: The lifting unit includes a lower seat fixed to a pad, with multiple guide rods slidably arranged at four ends of the lower seat. The top of the guide rods is screwed to an upper seat. A lifting driver is provided inside the lower seat, and the lifting end of the lifting driver is fixed to the top surface of the upper seat.

6. The stress-sensitive upper limb joint contracture support pad for cervical spinal cord injury according to claim 5, characterized in that: The lifting drive is a hand-cranked jack.

7. The stress-sensitive upper limb joint contracture support pad for cervical spinal cord injury according to claim 5, characterized in that: The lifting drive includes an airbag or a cylinder, and the airbag or cylinder is connected to an air pump and an electronically controlled exhaust valve.

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