Height and weight scale for bedridden patient

Abstract

The invention discloses a height and weight scale for bedridden patients, and relates to the technical field of medical instruments. The height and weight scale for the bedridden patient comprises two symmetrically-arranged stretcher pieces, a linkage lifting mechanism and a weighing base, each stretcher piece comprises a main body rod and a bearing part connected to a rod body of the main body rod, the two ends of each main body rod are each vertically connected with a driven rod, and the axis of each driven rod is parallel to the upper surface of the corresponding bearing part; the two linkage lifting mechanisms are arranged at the two ends of the bearing part correspondingly. The linkage lifting mechanism comprises linkage sleeves and a lifting device, the number of the linkage sleeves is two, one ends of the two linkage sleeves are hinged to each other, and the other ends of the two linkage sleeves are movably connected with the driven rods of the two symmetrical stretcher pieces in a sleeving mode respectively; the lifting device is arranged between the two symmetrical stretcher pieces and located beside the driven rod, and the lifting device is provided with a telescopic end capable of stretching up and down. The height and weight scale for the bedridden patient can be used for measuring the height and the weight of the bedridden patient who is inconvenient to move, and can be detached, folded and stored.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a height and weight scale for bedridden patients. Background Art

[0002] In medical care, measuring the height and weight of patients is crucial for accurate medication and nutritional management. For example, many drugs require dosage calculation based on body weight to ensure efficacy, and height and weight data can also help evaluate whether a patient has malnutrition. Traditional measurement devices usually require the person being measured to stand on the instrument to complete the measurement by sensing weight and height data. However, this method is not applicable to critically ill patients who are bedridden for a long time, postoperative recoverers, or people with limited mobility because they cannot stand and cooperate.

[0003] In current traditional solutions, weight measurement mostly uses hospital beds with weighing functions, but such devices need to be calibrated frequently and are prone to inaccurate data due to the interference of the weight of bed sheets and quilts. Height measurement relies on a soft tape measure, which, although having the characteristic of being curlable, faces problems of inaccurate positioning in actual operation. For example, due to abnormal muscle tone or body position restrictions of the patient, it is difficult to independently maintain stable contact between the head and the heel. Medical staff need to fix the highest point of the measuring rod top and the lowest point of the heel at the same time, and the soft tape measure lacks a rigid support structure and is prone to deviation and sliding during the measurement process. In addition, existing height and weight measurement devices are often bulky and difficult to quickly fold and store after use. When stored in a ward environment with limited space for a long time, it is easy to block the movement route of medical staff during work, forcing medical staff to detour or pass sideways, reducing work efficiency and increasing the burden of cleaning and management. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a height and weight scale for bedridden patients, which can measure the height and weight of bedridden patients with limited mobility and can be disassembled, folded, and stored.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A height and weight scale for bedridden patients, comprising two symmetrically arranged stretcher sheets, a linkage lifting mechanism and a weighing base. The stretcher sheet includes a main body rod and a supporting portion connected to the rod body of the main body rod. Both ends of the main body rod are vertically connected with driven rods, and the axes of the driven rods are arranged parallel to the upper surface of the supporting portion. There are two sets of the linkage lifting mechanisms, which are respectively arranged at both ends of the supporting portion. The linkage lifting mechanism includes a linkage sleeve and a lifting device. There are two linkage sleeves, one ends of the two linkage sleeves are hinged to each other, and the other ends are respectively movably sleeved with the driven rods of the two symmetric stretcher sheets. The lifting device is arranged between the two symmetric stretcher sheets and beside the driven rods, and has a telescopable end that is movably connected to the hinged ends of the two linkage sleeves. Both ends of the main body rod are rotatably connected with supporting members. There are two weighing bases, which are respectively arranged at both ends of the supporting portion and below the supporting members and the lifting device. The upper surface of the weighing base is provided with a receiving groove matching the shapes of the bottom of the supporting member and the lifting device, and a weighing element is arranged at the bottom of the receiving groove. Along the axial direction of the rod body of one of the main body rods, length measurement marks and a measuring component that can slide along the rod body are evenly arranged at intervals.

[0007] In some embodiments, the lifting device includes a cuboid base, a motor, a controller, a power supply and a control button. A first T-shaped chute is opened in the side wall of the cuboid base along the vertical direction, and a T-shaped slider is slidably matched in the first T-shaped chute. The motor is fixedly arranged upside down on the top of the cuboid base, and its output shaft is connected with a lead screw. A threaded hole matching the lead screw is opened through the upper and lower surfaces of the upper surface of the T-shaped slider, and the extending end of the T-shaped slider is movably connected to the hinged ends of the two linkage sleeves. The controller and the power supply are arranged inside the weighing base, and the control button is arranged on the outer surface of the weighing base. The controller receives instructions through the control button and drives the motor to rotate forward and backward to drive the T-shaped slider to lift along the first T-shaped chute. The power supply is used to provide working voltage.

[0008] In at least one embodiment, there are two sets of the measuring components, and both sets of the measuring components can slide along the axis of the main body rod. The measuring component includes a T-shaped block and a measuring rod. A second T-shaped chute is opened in the rod body of the main body rod along the axial direction, and the T-shaped block is slidably arranged in the second T-shaped chute. The measuring rod is arranged on the top of the T-shaped block and is perpendicular to the axis of the main body rod.

[0009] In at least one embodiment, the height and weight scale for bedridden patients further includes a display screen, and the display screen is arranged on the outer surface of the weighing base. The display screen is signal-connected to the controller and the weighing element, and is used to display the weight data collected by the weighing element in real time.

[0010] In at least one embodiment, diffuse infrared sensors are provided at both ends inside the groove of the second T-shaped sliding groove, and the detection surfaces of each diffuse infrared sensor face the sliding direction of the corresponding T-shaped block; the two diffuse infrared sensors are electrically connected to a controller respectively.

[0011] Compared with the prior art, the present invention at least achieves the following beneficial effects: Through the symmetrically arranged stretcher sheets and the linkage lifting mechanism, the patient can be smoothly lifted to the horizontal platform formed by splicing the stretcher sheets without standing, directly solving the limitation of traditional equipment relying on the standing posture, and is particularly suitable for patients who are bedridden after surgery, in intensive care, and have limited mobility; at the same time, through the weighing element on the weighing base, combined with the markings on the main body rod and the slidable measuring component, weight data and height parameters can be obtained while lifting the patient, eliminating the problem of inaccurate operation in measuring with a soft tape measure and improving the clinical nursing efficiency; in addition, the stretcher sheets, the linkage lifting mechanism, and the weighing base adopt a modular design, and the linkage sleeve is detachably connected to the driven rod of the stretcher sheet, greatly reducing the occupied space when the equipment is idle and solving the problem that traditional equipment is bulky and difficult to fold and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0013] Figure 1 is a schematic structural diagram of the height and weight scale for bedridden patients of the present invention;

[0014] Figure 2 is a schematic structural diagram of the height and weight scale for bedridden patients of the present invention when the supporting part is in a horizontal state when supporting the patient;

[0015] Figure 3 is Figure 2 an exploded view of;

[0016] Figure 4 is Figure 3 an enlarged view of area A in;

[0017] Figure 5 is Figure 3 an enlarged view of area B in.

[0018] The reference numerals in the figure are: 1, stretcher sheet; 11, main body rod; 111, identifier; 112, second T-shaped sliding groove; 113, limit ring groove; 12, supporting portion; 13, driven rod; 14, support member; 141, collar; 142, standing foot; 15, roller; 2, linkage lifting mechanism; 21, linkage sleeve; 211, hinge hole; 22, lifting device; 221, rectangular base; 2211, first T-shaped sliding groove; 222, motor; 2221, lead screw; 223, controller; 224, power supply; 225, control button; 2251, switch button; 2252, forward rotation button; 2253, reverse rotation button; 226, T-shaped slider; 2261, threaded hole; 3, weighing base; 31, receiving groove; 32, weighing element; 4, measuring component; 41, T-shaped block; 42, measuring rod; 5, display screen; 6, diffuse reflection infrared sensor. Detailed implementation mode

[0019] The present invention will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. It should be understood, however, that the present invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present invention more complete and to fully convey the concept of the present invention to those skilled in the art.

[0020] In the description of the present invention, it is to be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 operate in a specific orientation, and thus should not be construed as limiting the scope of protection of the present invention.

[0021] As Figures 1 to 5 shown, in the height and weight scale for bedridden patients of the present invention, it includes two symmetrically arranged stretcher sheets 1, a linkage lifting mechanism 2 and a weighing base 3.

[0022] Among them, the stretcher sheet 1 includes a main body rod 11 and a supporting portion 12 connected to the rod body of the main body rod 11. Both ends of the main body rod 11 are vertically connected with driven rods 13, and the axis of the driven rod 13 is arranged parallel to the upper surface of the supporting portion 12. There are two groups of linkage lifting mechanisms 2, and the two groups of linkage lifting mechanisms 2 are respectively arranged at both ends of the supporting portion 12. Specifically, the linkage lifting mechanism 2 includes a linkage sleeve 21 and a lifting device 22. There are two linkage sleeves 21. One end of the two linkage sleeves 21 is hinged to each other, and the other ends are respectively movably sleeved with the driven rods 13 of two symmetric stretcher sheets 1. In this embodiment, the hinged manner of the two linkage sleeves 21 adopts a hinge-type movable connection. The lifting device 22 is arranged between two symmetric stretcher sheets 1 and beside the driven rod 13. The lifting device 22 has a telescopable end that can move up and down, and the telescopic end is movably connected to the hinged end of the two linkage sleeves 21. In this embodiment, by lifting and lowering the telescopic end, the two linkage sleeves 21 are driven to drive the corresponding driven rods 13, and further the included angle between the two stretcher sheets 1 is adjusted. Both ends of the main body rod 11 are rotatably connected with supporting members 14. There are two weighing bases 3, which are respectively arranged at both ends of the supporting portion 12 and below the supporting members 14 and the lifting device 22. The upper surface of the weighing base 3 is provided with a receiving groove 31 matching the shapes of the bottoms of the supporting member 14 and the lifting device 22, and a weighing element 32 is arranged at the bottom of the receiving groove 31. Along the axial direction, length measurement marks 111 and a measurement component 4 that can slide along the rod body are evenly arranged at intervals on the rod body of one of the main body rods 11.

[0023] Specifically in this embodiment, after the two stretcher sheets 1 are spliced together, the supporting portions 12 of the two stretcher sheets 1 are turned outwards simultaneously by the lifting of the lifting device 22 to form a horizontal platform for the patient to lie flat.

[0024] Specifically in this embodiment, the two groups of linkage lifting mechanisms 2 are respectively arranged beside the driven rods 13 at both ends of the supporting portion 12, while the weighing base 3 is arranged directly below the linkage lifting mechanism 2.

[0025] Specifically in this embodiment, the support member 14 and the lifting device 22 are vertically arranged in the receiving groove 31 on the weighing base 3, and being placed in the receiving groove 31 can further prevent the support member 14 and the lifting device 22 from tipping over. At the same time, the linkage sleeve 21 and the driven rod 13 are slidably sleeved with each other. When the telescopic end of the lifting device 22 pushes the linkage sleeve 21 upward, since the stretcher piece 1 flips outward along the axis of the main body rod 11, during the process of the stretcher piece 1 flipping to the horizontal state, because the support member 14 and the lifting device 22 are vertically arranged in the receiving groove 31 on the weighing base 3, and the relative positions between the support member 14 and the lifting device 22 are fixed, if the length between the linkage sleeve 21 and the driven rod 13 does not shorten accordingly during the flipping of the stretcher piece 1, then the telescopic end of the lifting device 22 will be restricted in its lifting action due to the length limitation between the linkage sleeve 21 and the driven rod 13 during lifting. Therefore, the linkage sleeve 21 and the driven rod 13 must be set to be slidably sleeved with each other.

[0026] Specifically in this embodiment, the support member 14 includes a collar 141 and a foot 142. A limiting ring groove 113 is formed in the rod body at the end of the main body rod 11, and the collar 141 is sleeved on the limiting ring groove 113. The top of the foot 142 is fixedly connected to the outer surface of the collar 141, and the bottom of the foot 142 is detachably installed in the receiving groove 31.

[0027] Reference Figure 4, specifically, the lifting device 22 includes a cuboid base 221, a motor 222, a controller 223, a power supply 224, and a control button 225. A first T-shaped chute 2211 is formed in the side wall of the cuboid base 221 in the vertical direction, and a T-shaped slider 226 is slidably engaged in the first T-shaped chute 2211. The motor 222 is fixedly installed upside down on the top of the cuboid base 221, and its output shaft is connected to a lead screw 2221. A threaded hole 2261 that is threadedly engaged with the lead screw 2221 is formed through the upper and lower surfaces of the upper surface of the T-shaped slider 226. The protruding end of the T-shaped slider 226 is movably connected to the hinged ends of the two linkage sleeves 21. Specifically in this embodiment, hinge holes 211 are formed at the hinged ends of the two linkage sleeves 21, and the protruding end of the T-shaped slider 226 is in the shape of a round rod that matches the hinge holes 211, and this round rod is movably connected to the hinge holes 211. The controller 223 and the power supply 224 are arranged inside the weighing base 3, and the control button 225 is arranged on the outer surface of the weighing base 3. The controller 223 receives instructions through the control button 225 and drives the motor 222 to rotate forward and backward to drive the T-shaped slider 226 to lift along the first T-shaped chute 2211. The power supply 224 is used to provide the working voltage. Through the setting of the first T-shaped chute 2211 and the slider, stable lifting movement can be achieved. In this embodiment, the controller 223 is an embedded microcontroller 223, which uses an ARM Cortex-M series microcontroller 223. The motor 222 is a stepper motor and has a closed-loop control function. The control button 225 includes a switch button 2251, a forward rotation button 2252 for the forward rotation of the motor 222, and a reverse rotation button 2253 for the reverse rotation of the motor 222.

[0028] Among them, two sets of measuring components 4 are provided, and both sets of measuring components 4 can slide along the axis of the main rod 11. Specifically, the measuring component 4 includes a T-shaped block 41 and a measuring rod 42. A second T-shaped chute 112 is formed in the rod body of the main rod 11 along the axial direction, and the T-shaped block 41 is slidably arranged in the second T-shaped chute 112. The measuring rod 42 is arranged on the top of the T-shaped block 41 and is perpendicular to the axis of the main rod 11. In this embodiment, when measuring, the measuring rod 42 is used to slide and abut against the corresponding positions on the top of the head and the bottom of the foot of the measured person. By setting it like this, the height value can be read according to the mark 111 of the main rod 11, that is, the value of the T-shaped block 41 at the highest point of the head minus the value of the T-shaped block 41 at the lowest point of the heel.

[0029] To facilitate the intuitive display of the measured weight value, the height and weight scale for bedridden patients further includes a display screen 5, which is arranged on the outer surface of the weighing base 3. The display screen 5 is signal-connected to the controller 223 and the weighing element 32, and is used to display the weight data collected by the weighing element 32 in real time. In this embodiment, the weighing element 32 is a pressure sensor, preferably a piezoresistive sensor such as the Honeywell HSC series. The controller 223 receives the measurement signal of the pressure sensor and synchronously transmits it to the display screen 5 after data processing.

[0030] To ensure the accuracy of the height reading, two diffuse reflection infrared sensors 6 are arranged at both ends inside the groove of the second T-shaped chute 112, and the detection surface of each diffuse reflection infrared sensor 6 faces the sliding direction of the corresponding T-shaped block 41. The controller 223 presets the reference total length L of the second T-shaped chute 112 and is electrically connected to the two diffuse reflection infrared sensors 6 respectively. When measuring the height, one of the T-shaped blocks 41 moves to the corresponding position above the head of the person being measured, and the other T-shaped block 41 moves to the corresponding position below the feet of the person being measured. The two diffuse reflection infrared sensors 6 respectively detect the displacement distances L1 and L2 of their corresponding T-shaped blocks 41 in real time. The controller 223 calculates the actual height value through the formula H = L - (L1 + L2), and transmits the height value to the display screen 5 for visual display.

[0031] To reduce the resistance when the stretcher sheet 1 is inserted between the patient and the bed surface, the forward vertical cross-section of the supporting part 12 is a triangular plate body, and a roller 15 is axially connected to the edge parallel to the main body rod 11.

[0032] The usage method of this bedridden patient height and weight scale is as follows: First, the medical staff place the symmetrical stretcher pieces 1 on both sides of the patient's body. Gently insert the rollers 15 at the front end of the supporting part 12 under the patient's body. Then connect the linkage sleeve 21 and the driven rod 13. Next, vertically insert the support member 14 and the lifting device 22 into the receiving groove 31 of the weighing base 3. Then start the lifting device 22 through the control button 225, and drive the lead screw 2221 to drive the supporting part 12 of the stretcher piece 1 to smoothly lift the patient until the supporting part 12 reaches the horizontal state. The weighing element 32, that is, the pressure sensor, collects the patient's weight data in real time and directly displays it on the display screen 5. At the same time, slide the two sets of measuring components 4 on the main body rod 11, that is, the T-shaped blocks 41 and the measuring rods 42, and respectively position them at the highest point of the patient's head and the lowest point of the heel. Read the height value according to the mark 111 on the main body rod 11, that is, the value of the T-shaped block 41 at the highest point of the head minus the value of the T-shaped block 41 at the lowest point of the heel. Or the controller 223 reads the displacement distances L1 and L2 of the two diffuse reflection infrared sensors 6 that respectively detect their corresponding T-shaped blocks 41 in real time, and then the controller 223 calculates the actual height value through the formula H = L - (L1 + L2), and synchronously transmits this height value to the display screen 5. After the measurement is completed, the device can be lowered back to its original position with one key and disassembled, folded and stored.

[0033] It should be understood that all the above embodiments are exemplary rather than restrictive. Under the concept of the present invention, those skilled in the art should be within the protection scope of the present invention for all kinds of modifications or deformations made to the specific embodiments described above.

Claims

1. A height and weight scale for bedridden patients, characterized in that: It includes two symmetrically arranged stretcher sheets (1), a linkage lifting mechanism (2) and a weighing base (3). The stretcher sheet (1) includes a main body rod (11) and a supporting part (12) connected to the body of the main body rod (11). Both ends of the main body rod (11) are vertically connected with driven rods (13), and the axis of the driven rod (13) is arranged parallel to the upper surface of the supporting part (12). There are two sets of the linkage lifting mechanisms (2), which are respectively arranged at both ends of the supporting part (12). The linkage lifting mechanism (2) includes a linkage sleeve (21) and a lifting device (22). There are two linkage sleeves (21). One ends of the two linkage sleeves (21) are hinged to each other, and the other ends are respectively movably sleeved with the driven rods (13) of the two symmetric stretcher sheets (1). The lifting device (22) is arranged between the two symmetric stretcher sheets (1) and beside the driven rod (13), and it has a telescopable end that is movably connected to the hinged ends of the two linkage sleeves (21). Both ends of the main body rod (11) are rotatably connected with supporting members (14). There are two weighing bases (3), which are respectively arranged at both ends of the supporting part (12) and below the supporting members (14) and the lifting device (22). The upper surface of the weighing base (3) is provided with a receiving groove (31) matching the shapes of the bottom of the supporting member (14) and the lifting device (22), and a weighing element (32) is arranged at the bottom of the receiving groove (31). Along the axial direction, length measurement marks (111) and a measuring component (4) that can slide along the rod body are evenly arranged at intervals on the rod body of one of the main body rods (11).

2. The height and weight scale for bedridden patients according to claim 1, wherein: The lifting device (22) includes a cuboid base (221), a motor (222), a controller (223), a power supply (224) and a control button (225). A first T-shaped chute (2211) is vertically opened on the side wall of the cuboid base (221), and a T-shaped slider (226) is slidably fitted in the first T-shaped chute (2211). The motor (222) is fixedly inverted on the top of the cuboid base (221), and its output shaft is connected with a lead screw (2221). A threaded hole (2261) that is threadedly matched with the lead screw (2221) is opened through the upper and lower surfaces of the upper surface of the T-shaped slider (226), and the extending end of the T-shaped slider (226) is movably connected to the hinged ends of the two linkage sleeves (21). The controller (223) and the power supply (224) are arranged inside the weighing base (3), the control button (225) is arranged on the outer surface of the weighing base (3), and the controller (223) receives instructions through the control button (225) and drives the motor (222) to rotate forward and backward to drive the T-shaped slider (226) to lift along the first T-shaped chute (2211). The power supply (224) is used to provide the working voltage.

3. The height and weight scale for bedridden patients according to claim 2, characterized in that: There are two sets of the measuring components (4), and both sets of the measuring components (4) can slide along the axis of the main body rod (11); the measuring component (4) includes a T-shaped block (41) and a measuring rod (42), a second T-shaped sliding groove (112) is axially formed in the rod body of the main body rod (11), and the T-shaped block (41) is slidably arranged in the second T-shaped sliding groove (112); the measuring rod (42) is arranged at the top of the T-shaped block (41) and is perpendicular to the axis of the main body rod (11).

4. The height and weight scale for bedridden patients according to claim 3, characterized in that: It further includes a display screen (5), and the display screen (5) is arranged on the outer surface of the weighing base (3); the display screen (5) is in signal connection with the controller (223) and the weighing element (32), and is used for displaying the body weight data collected by the weighing element (32) in real time.

5. The height and weight scale for bedridden patients according to claim 4, characterized in that: One diffuse reflection infrared sensor (6) is arranged at each of the two ends inside the second T-shaped sliding groove (112), and the detection surface of each diffuse reflection infrared sensor (6) faces the sliding direction of the corresponding T-shaped block (41); the two diffuse reflection infrared sensors (6) are respectively electrically connected to the controller (223).

6. The height and weight scale for bedridden patients according to claim 1, characterized in that: The forward vertical cross-section of the supporting part (12) is a triangular plate body, and a roller (15) is axially connected to the edge parallel to the main body rod (11).

7. The height and weight scale for bedridden patients according to claim 1, characterized in that: The support (14) includes a collar (141) and a foot (142), a limiting ring groove (113) is formed in the rod body at the end of the main body rod (11), and the collar (141) is sleeved on the limiting ring groove (113); the top of the foot (142) is fixedly connected to the outer surface of the collar (141), and the bottom of the foot (142) is detachably installed in the receiving groove (31).

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