Body weight measurement instrument for critically ill patients

By designing a weight examination device for critically ill patients including weighing mechanisms and mattresses, the problem that severely ill patients in the prior art is difficult to measure their weight with high accuracy is achieved, and the weight measurement effect with simple operation, high accuracy and little impact on patients is achieved.

WO2025123582A1PCT designated stage Publication Date: 2025-06-19JIANGSU CANCER HOSPITAL
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Patent Information

Application Number
PCT/CN2024/093685
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2025-06-19

AI Technical Summary

Technical Problem

It is difficult to measure weight with high accuracy in the state of a severely ill patient in bed, and the existing bed does not have the weighing function. Forcibly moving the patient to measure will cause secondary harm to the patient.

Method used

A weight examination device for critically ill patients is designed including a weighing mechanism and a mattress. The mattress consists of a cloth pad and an airbag pad. The airbag pad is inflated or deflated to adjust the height of the cloth pad. The weighing mechanism consists of multiple weighing modules and brackets. The support can adjust the height to fit the edge plate. The weighing module realizes weight measurement through the deflation of the airbag pad.

Benefits of technology

The device is simple to operate, reduces movement and movement of the patient, improves measurement accuracy, reduces damage to the patient, and has a smaller error and more accurate measurement than weighing the entire bed.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024093685_19062025_PF_FP_ABST
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Abstract

A body weight measurement instrument for critically ill patients, which relates to the technical field of medical auxiliary instruments. The body weight measurement instrument comprises a weighing mechanism and a mattress, wherein the mattress comprises a cloth pad (1) located at an upper layer and an air bladder pad (2) located at a lower layer; and the weighing mechanism comprises a plurality of weighing modules (4). The mattress can be laid on a hospital bed to serve as a mattress for daily use, and during weight measurement, the air bladder pad (2) is used with the weighing mechanism; by using the air bladder pad (2), a patient lying on the hospital bed is slowly raised to a proper height, and during the process, the patient is not moved too much, thereby greatly preventing harm to the patient; moreover, the weighting mechanism and side plates (3) form a platform to support and stabilize the patient, and then the air bladder pad (2) is deflated, and the patient can be weighed by means of the weighing mechanism. The use of the body weight measurement instrument is convenient and reliable, and compared with the weighing of the overall hospital bed, by using the body weight measurement instrument, the weighing precision is improved, and the effect on the patient is minimized, and thus the use is safer.
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Description

A weight checking device for critically ill patients Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and in particular to a weight checking device for critically ill patients. Background Art

[0002] Many bedridden patients need to monitor multiple body indices, and weight is a very important physical indicator. If critically ill patients or patients with limited lower limb mobility lose weight suddenly, it indicates a serious disease. Medication, etc., needs to be customized according to the patient's weight and other indicators.

[0003] When critically ill patients are admitted to the hospital or department, most of them need to lie flat on the bed and cannot stand up to cooperate with routine weight measurement. Moreover, after long-term treatment in the ICU, the patient's weight will drop significantly. However, since most critically ill patients are bedridden, some also require mechanical ventilation, and have drainage tubes and various implanted rescue devices or organ function support equipment, there are some beds in the existing technology that can try to detect patient weight and other characteristics, but most of them are expensive. The beds in the critical care departments of general hospitals do not have this function, so the patient needs to be moved to a specific weighing device for measurement;

[0004] Since most critically ill patients are bedridden, some require mechanical ventilation and have drainage tubes and various inserted rescue devices or organ function support equipment, it is impossible to move the patients for weight measurement. Forcibly moving the patients for measurement may cause secondary harm to the patients. Currently, some weight measurement operations measure the entire bed, which is lifted as a whole or moved to a weighing device for weighing. For intubated patients, the bed cannot be moved, and the bed is directly lifted and measured. Because there are many objects on the bed and the bed is heavy, the weighing equipment has high requirements and the measurement accuracy is not high. Therefore, there is an urgent need for a weight checking device for critically ill patients to solve the above problems.

[0005] Summary of the Invention

[0006] The present invention provides a weight checking device for critically ill patients that is simple and convenient to operate, does not significantly affect patient operation, and can improve measurement accuracy, to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a weight checking device for critically ill patients, comprising a weighing mechanism and a mattress, wherein the mattress is used to be laid on a hospital bed; wherein:

[0008] The mattress comprises a cloth pad on the upper layer and an airbag pad on the lower layer, with side panels installed on both long sides of the cloth pad; the airbag pad is inflated or deflated to raise or lower the height of the cloth pad, and the two side panels move synchronously with the cloth pad;

[0009] The weighing mechanism includes multiple weighing modules, each of which is equipped with a bracket. The bracket is used to support the weighing module under the side plate when the airbag cushion is inflated, and the weighing surface of the weighing module is in contact with the lower surface of the side plate. As the airbag cushion deflates, the weighing module bears and displays the force applied by the side plate.

[0010] Preferably, the bracket is a component with an adjustable height at its top, the weighing module is installed at the top of the bracket, and based on the position of the side plate, the weighing module is adjusted by the bracket until the weighing surface is in contact with the lower surface of the side plate.

[0011] Preferably, a slide groove is provided on the side plate, and a slider is flexibly connected to the weighing surface of the weighing module. The slider is configured to slide into the slide groove and make the weighing surface fit with the lower surface of the side plate.

[0012] Preferably, the cloth pad is provided with a plurality of channels between the two side panels, and at least some of the channels are inserted with transverse panels; the side panels are provided with grooves at each channel, wherein both ends of the transverse panels extend from the channels and are inserted into the grooves, and the width of each channel is greater than the width of the corresponding transverse panel, so that the transverse panel can move freely in the channel along the long side direction of the cloth pad, and an inflatable strip is provided in each channel, and the inflatable strip is configured to expand the corresponding channel opening when inflated.

[0013] Preferably, the transverse panel includes a central panel and at least one side panel, wherein the side panel is connected to the central panel via a telescopic structure, and the telescopic structure is used to adjust the distance between the side panel and the central panel.

[0014] Preferably, linkage parts are installed at each groove on the side panel, and as the horizontal panel is inserted into the groove, the side panel is connected to the linkage parts, and the linkage parts are configured to act on the side panel to extend or contract the telescopic structure.

[0015] Preferably, the linkage comprises:

[0016] a knob mounted on the side panel;

[0017] A pull rod, one end of which is linked to the knob and drives the pull rod to move as the knob rotates;

[0018] A connecting piece is slidably installed in the groove along the long side of the side plate, is connected to the other end of the pull bar, and moves synchronously with the pull bar, and

[0019] Both ends of the side panels are provided with connecting strips for being inserted into the grooves. The connecting strips are spliced ​​with the connecting pieces through a locking structure. The side of the side panel away from the center panel is a sloped structure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, the main structure is a mattress, which can be laid on the hospital bed as a daily mattress. During the weighing test, the airbag cushion and the weighing mechanism are used together to slowly lift the patient lying on the hospital bed to a suitable height using the airbag cushion. This process will not cause too much movement to the patient, greatly avoiding harm to the patient. The weighing mechanism and the side plate form a platform to support and stabilize the patient's state. At this time, the airbag cushion is deflated, and the patient can be weighed through the weighing mechanism. It is convenient and reliable to use. Compared with weighing the entire hospital bed, it improves the weighing accuracy and minimizes the impact on the patient, making it safer to use.

[0022] In the present invention, there are multiple weighing modules, which are assembled with the side plates in a sliding manner. The number of weighing modules can be flexibly selected and the position of the weighing modules can be flexibly adjusted according to the body size and actual needs of different patients, so that the weighing operation can be performed more effectively.

[0023] In the present invention, through the arrangement of channels and transverse boards, a plurality of transverse boards can be placed on the side boards to form a stable bracket, so that the patient can be stably lifted during weighing. According to the actual conditions such as the patient's body position, each transverse board can slide in the corresponding channel to adjust its own position, so as to better lift the patient. In addition, through the arrangement of the center board and the side boards, as well as the linkage parts, the position of the corresponding transverse board or the width of the corresponding transverse board can be adjusted by rotating the knob according to needs to meet actual needs, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] In the attached figure:

[0026] FIG1 is a schematic structural diagram of a weight checking device according to the present invention;

[0027] FIG2 is a plan view of the weight checking apparatus of the present invention;

[0028] FIG3 is a structural diagram of a mattress of the present invention;

[0029] FIG4 is a schematic structural diagram of a weighing module and different brackets of the present invention;

[0030] FIG5 is a schematic structural diagram of a weighing module of the present invention;

[0031] FIG6 is a schematic structural diagram of the horizontal plate of the present invention;

[0032] FIG7 is a plan view of the horizontal plate of the present invention;

[0033] FIG8 is a schematic structural diagram of the side plate and linkage member of the present invention;

[0034] FIG9 is a schematic structural diagram of the linkage member of the present invention;

[0035] Numbers in the figure: 1. Cloth pad; 2. Airbag cushion; 3. Side panel; 4. Weighing module; 41. Weighing surface; 42. Display screen; 5. Bracket; 51. Top of bracket; 52. Bottom of bracket; Screw; 52. Nut; 6. Slide groove; 7. Slider; 8. Channel; 9. Cross plate; 91. Center plate; 92. Side panel; 93. Storage slot; 94. Connecting rod; 10. Groove; 11. Inflatable strip; 12. Knob; 13. Pull strip; 14. Gear; 15. Connecting piece; 16. Connecting strip; 17. Screw hole; 18. Inclined structure; 19. Air pipe; 20. Screw. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] Embodiment: As shown in Figures 1 and 2, a weight checking device for critically ill patients includes a weighing mechanism and a mattress. The mattress is used to be laid on a hospital bed, and the weighing mechanism is used to weigh the mattress and objects above it.

[0038] FIG3 is a diagram showing the structure of a mattress, wherein the mattress comprises a cloth pad 1 located on an upper layer and an airbag pad 2 located on a lower layer. Side panels 3 are mounted on both long sides of the cloth pad 1. The airbag pad 2 is inflated or deflated to raise or lower the height of the cloth pad 1, and the two side panels 3 move synchronously with the cloth pad 1.

[0039] When in use, the mattress is laid on the hospital bed and can be used as a daily mattress. Under normal conditions, the airbag cushion 2 can be inflated by an external inflation device through the air pipe 19 as needed, so that it can be used in an inflated state or in a deflated state; wherein, the side panels 3 on both sides are connected to the upper cloth pad 1, and the width of the cloth pad 1 is at least not less than the width of the hospital bed, so that the two side panels 3 are at the edge of the hospital bed in a natural state and will not affect the patient on the hospital bed. When the air cushion is inflated, the two side panels 3 will move upward, forming a certain height difference between them and the bed board of the hospital bed, and the height difference is controlled by the inflation degree of the airbag cushion 2.

[0040] Among them, the weighing mechanism includes multiple weighing modules 4, each weighing module 4 is equipped with a bracket 5, and the bracket 5 is used to support the weighing module 4 under the side plate 3 when the airbag cushion 2 is inflated, and the weighing surface 41 of the weighing module 4 is in contact with the lower surface of the side plate 3. As the airbag cushion 2 is deflated, the weighing module 4 bears and displays the force applied by the side plate 3.

[0041] According to the present invention, when the airbag cushion 2 is inflated, a suitable number of weighing modules 4 are set under the side plate 3 according to actual needs. The weighing module 4 is supported by the bracket 5 and the weighing surface 41 is in contact with the lower surface of the side plate 3 to stabilize the state of the bracket 5. At this time, the inflated airbag cushion 2, the bracket 5 and the weighing module 4 work together to lift the mattress and the patient above it, and the airbag cushion 2 is deflated. The gravity on the cloth pad 1 is gradually transferred to the side plate 3 and the bracket 5 and weighing module 4 below. At this time, the weighing module 4 has a display screen 42, and its weighing distance is the same as that of the existing electronic weighing equipment. The gravity value is displayed on the display screen 42 of the weighing module 4. As the airbag cushion 2 continues to deflate, the gravity value continues to change until the gravity value remains unchanged. At this time, it is the weight of the patient and the cloth pad 1. In this process, there is no need to move the patient, and the impact on the patient is reduced to a minimum. Compared with the existing weighing of the entire bed, the error is smaller and the measurement is more accurate.

[0042] According to the above content of the present invention, in the present invention, the bracket 5 is a component with an adjustable height at its top, the weighing module 4 is installed at the top 51 of the bracket, and based on the position of the side plate 3, the weighing module 4 is adjusted by the bracket to the weighing surface 41 and the lower surface of the side plate 3; with reference to Figure 4, two height-adjustable components are listed as brackets 5 in this embodiment, wherein the left side of Figure 4 is a triangular bracket 5, and the two legs are movably arranged at the bottom of the weighing module 4. By changing the angle between the two legs, the height of the top can be changed, wherein the bottom end 52 of the bracket can be fixed to the bed board by a clamp or a hoop and other structures, and a support seat can be set at the side of the bed for supporting the legs (based on actual needs). The right picture in Figure 4 is a prismatic bracket 5, wherein a screw nut screw 52 structure is set in the middle of the prismatic bracket 5, and the nut screw 52 is driven by the screw to move to change the state of the prismatic bracket 5, thereby adjusting the height of the top end 51 of the bracket, and the support method of the bottom end 52 of the bracket is the same as that of the triangular bracket 5.

[0043] In some embodiments, referring to Figures 1 and 5, a slide groove 6 is provided on the side plate 3, and a slider 7 is flexibly connected to the weighing surface 41 of the weighing module 4. The slider 7 is configured to slide into the slide groove 6 and make the weighing surface 41 fit with the lower surface of the side plate 3. Through the setting of the slider 7 and the slide groove 6, it can be ensured that the weighing module 4 is stably located below the side plate 3, and the two will not slide relative to each other to affect the weighing accuracy, and the position of the weighing module 4 can be flexibly adjusted according to needs.

[0044] In order to stably lift the patient, in some embodiments, a plurality of channels 8 are provided on the cloth pad 1 between the two side panels 3, and at least some of the channels 8 are inserted with cross panels 9; grooves 10 are provided on the side panels 3 at each channel 8, wherein both ends of the cross panels 9 extend from the channels 8 and are inserted into the grooves 10.

[0045] According to the above content, after determining the position of the patient on the bed, insert an appropriate number of horizontal boards 9 into the channels 8 at the corresponding positions one by one, and insert the extended ends of the horizontal boards 9 into the grooves 10. The horizontal boards 9 and the side boards 3 are used to form a bracket, so that the patient can be lifted stably without causing concave conditions that affect the weighing accuracy. After weighing is completed, the horizontal boards 9 can be pulled out.

[0046] According to the above content, in order to better insert the cross plate 9, an inflation strip 11 is provided in each channel 8. The inflation strip 11 is configured to expand the opening of the corresponding channel 8 when inflated. The inflation strip 11 can be independently provided with a separate inflation hole from the airbag cushion 2, and it is inflated when used as needed, thereby automatically expanding the channel 8 to facilitate the user to insert the cross plate 9 into the channel 8.

[0047] Due to the different body shapes and positions of different patients, the number and position of the channels 8 cannot be accurately met in advance. According to the above content, by setting the width of each channel 8 to be larger than the width of the corresponding transverse plate 9, the transverse plate 9 can move freely in the channel 8 along the long side direction of the pad 1.

[0048] That is, the position of the transverse plate 9 can be adjusted according to needs, and the transverse plate 9 can be inserted into the entrance of the channel 8 in the area where the patient is not necessarily compacted, and then the transverse plate 9 can be moved to the bottom of the patient's body by translating the transverse plate 9, so as to support the patient. The side plate 92 is away from the center plate 91 on the side of the inclined structure 18. For example, at the position of the patient's leg, the transverse plate 9 can be inserted into the channel 8 at the patient's leg joint. Due to the structure at the joint, the channel 8 below will not be compacted, and the transverse plate 9 can be easily inserted into the channel 8 below the joint. Then, the transverse plate 9 can be moved to the bottom of the thigh or calf by translating to support the thigh or calf. There is no need to lift the patient's thigh or calf before inserting the transverse plate 9, and the operation is more convenient.

[0049] In some embodiments, in order to better support the patient, the horizontal plate 9 includes a central plate 91 and at least one side plate 92, wherein the side plate 92 is connected to the central plate 91 by a telescopic structure, and the telescopic structure is used to adjust the distance between the side plate 92 and the central plate 91, thereby adjusting the entire width.

[0050] Referring to Figures 6 and 7, the retractable structure adopted in this embodiment is that storage grooves 93 are provided on both sides of the center plate 91, and storage grooves 93 are also provided on the corresponding surfaces of the side plates 92 and the center plate 91. A plurality of connecting rods 94 are provided between the side plates 92 and the center plate 91, wherein the connecting rods 94 are provided in such a manner that one end is inserted into the storage groove 93 of the center plate 91 and is hinged thereto, and the other end is inserted into the storage groove 93 of the side plate 92 and is hinged thereto. By pulling the side plates 92 on both sides to change the angle of the middle connecting rod 94, the distance between the side plates 92 and the center plate 91 can be adjusted.

[0051] According to the above content, in this embodiment, a linkage part is provided to control the side panel 92, wherein a linkage part is installed at each groove 10 on the side panel 3. As the horizontal panel 9 is inserted into the groove 10, the side panel 92 is connected to the linkage part. The linkage part is configured to act on the side panel 92 so that the telescopic structure is extended or contracted.

[0052] 8-9 , the linkage comprises a knob 12, a pull rod 13 and a connecting piece 15; the knob 12 is mounted on the side panel 3; one end of the pull rod 13 is linked to the knob 12, and in this embodiment, a meshing linkage is adopted, that is, the pull rod 13 is a rack structure, and the corresponding part of the knob 12 is combined with a gear 14, and the two are meshed, and the pull rod 13 is driven to move as the knob 12 rotates; the connecting piece 15 is slidably installed in the groove 10 along the long side direction of the side panel 3, and is connected to the other end of the pull rod 13, and moves synchronously with the pull rod 13, and both ends of the side panel 92 are provided with a connecting strip 16 for being inserted into the groove 10, and the connecting strip 16 is spliced ​​with the connecting piece 15 through a locking structure; in this embodiment, the locking structure is to set screw holes 17 on both the connecting piece 15 and the connecting strip 16, and the two are connected and locked by screws 20.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A weight checking device for critically ill patients, characterized in that: It comprises a weighing mechanism and a mattress, wherein the mattress is used to be laid on a hospital bed; wherein: The mattress comprises a cloth pad located on the upper layer and an airbag pad located on the lower layer, and side panels are installed on the two long sides of the cloth pad; the airbag pad is inflated or deflated to raise or lower the height of the cloth pad, and the two side panels are displaced synchronously with the cloth pad; The weighing mechanism includes a plurality of weighing modules, each of which is equipped with a bracket, and the bracket is used to support the weighing module under the side plate when the airbag cushion is inflated, and the weighing surface of the weighing module is in contact with the lower surface of the side plate. As the airbag cushion is deflated, the weighing module bears and displays the force applied by the side plate.

2. A weight checking device for critically ill patients according to claim 1, characterized in that: The bracket is a component with an adjustable height at the top, and the weighing module is installed at the top of the bracket. Based on the position of the side plate, the weighing module is adjusted through the bracket until the weighing surface fits the lower surface of the side plate.

3. A weight checking device for critically ill patients according to claim 1, characterized in that: The side plate is provided with a slide groove, and the weighing surface of the weighing module is flexibly connected with a slider, and the slider is configured to be slidably installed in the slide groove and make the weighing surface fit with the lower surface of the side plate.

4. The weight checking device for critically ill patients according to claim 1, characterized in that: The cloth pad is provided with a plurality of channels between the two side plates, and at least some of the channels are inserted with a transverse plate; the side plates are provided with grooves at each channel, wherein both ends of the transverse plate extend out of the channel and are inserted into the grooves, and the width of each channel is greater than the width of the corresponding transverse plate, so that the transverse plate can move freely in the channel along the long side direction of the cloth pad, and each channel is provided with an inflatable strip, which is configured to expand the corresponding channel opening when inflated.

5. The weight checking device for critically ill patients according to claim 4, characterized in that: The transverse plate includes a central plate and at least one side plate, wherein the side plate is connected to the central plate by a telescopic structure, and the telescopic structure is used to adjust the distance between the side plate and the central plate.

6. A weight checking device for critically ill patients according to claim 5, characterized in that: The side panels are provided with linkage members at each groove. When the transverse panel is inserted into the groove, the side panels are connected to the linkage members. The linkage members are configured to act on the side panels so that the telescopic structure is extended or contracted.

7. A weight checking device for critically ill patients according to claim 6, characterized in that: The linkage comprises: A knob, mounted on the side plate; A pull rod, one end of which is linked to the knob, and drives the pull rod to move as the knob rotates; A connecting piece is slidably installed in the groove along the long side direction of the side plate, is connected to the other end of the pull rod, and moves synchronously with the pull rod, and Both ends of the side panels are provided with connecting strips for being inserted into the grooves, the connecting strips are spliced ​​with the connecting pieces through a locking structure, and the side of the side panel away from the center panel is a slope structure.

Citation Information

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