A vest type abdominal circumference measuring device with jaundice colorimetric function

Abstract

This invention provides a vest-style abdominal circumference measurement device with jaundice colorimetric function, comprising: an open vest body with an adjustable shoulder strap connected to its back support section, and flat guide sleeves connected to both sides via descending straps; an abdominal circumference measurement strap threaded through the flat guide sleeve, including a non-elastic scale layer, a flexible skin-adhering layer, and an anti-rolling reinforcing edge; a xiphoid process reference positioning structure located in the middle of the front side of the vest body; a pressure detection mechanism having flexible pressure sensors and a processing module spaced apart on the flexible skin-adhering layer for triggering readings during the respiratory plateau phase; and a light-corrected jaundice colorimetric component connected to the shoulder straps, featuring a skin observation window, a jaundice gradation area, a grayscale reference area, and a white reference area. This invention uses the xiphoid process as an anatomical reference to achieve repeated positioning of the abdominal circumference strap, improves measurement consistency with respiratory phase prompts, and integrates light-corrected colorimetric function for convenient bedside synchronous assessment.

Description

Technical Field

[0001] This invention relates to the field of medical measuring instruments, and in particular to a vest-type abdominal circumference measuring device with jaundice colorimetric function. Background Technology

[0002] In clinical practice, abdominal circumference measurement is an important non-invasive method for assessing ascites, peritoneal effusion, obesity, and nutritional status. It is particularly important for patients with cirrhosis, heart failure, and certain cancers, as continuous dynamic monitoring of abdominal circumference changes is a key indicator for assessing disease progression and treatment efficacy. Simultaneously, neonatal and hepatology patients often require simultaneous assessment of jaundice levels and monitoring of bilirubin metabolism.

[0003] Currently, flexible measuring tapes are commonly used in clinical practice to measure abdominal circumference, but they have significant drawbacks: First, the measurement of the horizontal plane is highly dependent on the operator's experience, the placement of the measuring tape is difficult to reproduce accurately, and the data from different periods lack comparability due to inconsistent positioning benchmarks, interfering with the judgment of subtle changes in the condition; Second, the measuring tape is prone to twisting, slipping or tilting when wrapped around the abdomen, introducing additional measurement errors.

[0004] To address the issue of inaccurate positioning, existing technologies have developed vest-style fixation structures for medical abdominal binders, such as the vest-style positioning abdominal binder disclosed in application number CN202120602380.1. This design integrates the back strap and abdominal binder, using a shoulder-back suspension method to fix the binder and employing back foam support blocks to limit slippage, thus improving the binder displacement problem to some extent. However, this patent's core function is for postoperative wound fixation and drainage bag support; the abdominal binder has no graduated constraint structure and lacks dynamic measurement capabilities. Furthermore, its positioning benchmark is based on the physiological curvature of the spine, which does not conform to the clinically recognized xiphoid process-umbilicus level measurement benchmark, making it impossible to guarantee the repeatability of measurement data, and it does not integrate any jaundice assessment function.

[0005] Furthermore, current jaundice assessments largely rely on nurses' subjective visual recording, which is greatly affected by ambient lighting and individual differences, and lacks standardized bedside colorimetric tools. More critically, in existing technologies, abdominal circumference measurement and jaundice assessment are two independent procedures, requiring separate steps using different tools. This increases nursing workload and time costs, and fails to simultaneously address the fundamental problems of inaccurate measurement positioning and standardized jaundice assessment. Therefore, how to achieve accurate and continuous monitoring of abdominal circumference while ensuring repeatable measurement baselines, and simultaneously considering the convenience and standardization of jaundice assessment, is a pressing technical problem that needs to be solved in this field. Summary of the Invention

[0006] In view of this, embodiments of the present invention aim to provide a vest-type abdominal circumference measurement device with jaundice colorimetric function to solve or alleviate the technical problems existing in the prior art.

[0007] The technical solution of this invention is implemented as follows: a vest-style abdominal circumference measuring device with jaundice colorimetric function, comprising: The open-style vest body has a back support section, and adjustable shoulder straps are connected to the upper two sides of the back support section. Flat guide sleeves are connected to both sides of the open-style vest body via a downward strap. The abdominal circumference measuring band is threaded around the patient's abdomen through a flat guide sleeve. The abdominal circumference measuring band includes an outer non-elastic scale layer, an inner flexible skin-adhesive layer, and anti-rolling reinforcing edges at the upper and lower edges. The xiphoid reference positioning structure is located in the middle of the front side of the open vest body; The pressure detection mechanism has flexible pressure sensors spaced at intervals on the flexible skin-adhesive layer along the length of the abdominal circumference measuring band, and a processing module located outside the non-elastic scale layer and electrically connected to the flexible pressure sensors. The light-corrected jaundice colorimetric unit connects to an adjustable shoulder strap and features a skin observation window, a jaundice gradation area, a grayscale reference area, and a white reference area.

[0008] As an improvement, the adjustable shoulder strap includes a fixed section and an adjustment section. The adjustment section is provided with an adjustment buckle that connects to the fixed section. The light-corrected jaundice colorimetric component is connected to the outer surface of the length adjustment section of the adjustable shoulder strap on either side.

[0009] As an improvement, the xiphoid process reference positioning structure includes: The positioning piece is fixed to the outer side of the middle front of the open vest body. The lower edge of the positioning piece is located above the middle front of the abdominal circumference measurement band, and the vertical center line of the positioning piece is aligned with the center line of the middle front of the abdominal circumference measurement band. The xiphoid process is aligned with the marking and placed on the positioning plate.

[0010] As an improvement, the downband is a flat strip extending downward from both sides of the open vest body, with at least one downband on each side. The upper end of the downband is sewn or heat-pressed to the open vest body, and the lower end of the downband is connected to the flat guide sleeve, which is used to keep the flat guide sleeve at the waist measurement height below the open vest body.

[0011] As an improvement, continuous waist circumference measurement graduations are printed along the length of the surface of the non-elastic scale layer.

[0012] As an improvement, the flexible pressure sensor is a flexible thin-film pressure sensor. Multiple flexible pressure sensors are distributed at the positions of the abdominal circumference measurement belt corresponding to the patient's anterior abdominal area and left and right lateral abdominal areas. The flexible pressure sensor is electrically connected to the processing module through flexible wires, which are arranged between the non-elastic scale layer and the flexible skin-adhesive layer.

[0013] As an improvement, the processing module includes a housing, a circuit board, a power supply, a data acquisition interface, a display, and a prompt. The circuit board and power supply are located inside the housing, the data acquisition interface is connected to a flexible wire, the display and prompt are located on the front of the housing, and the back of the housing is fixed to the outside of the non-elastic scale layer by a flexible connecting piece.

[0014] As an improvement, the light-corrected jaundice colorimetric component includes a substrate, with a skin observation window extending through the upper part of the substrate. The jaundice color level area, grayscale reference area, and white reference area are arranged sequentially from top to bottom on the substrate and are adjacent to the skin observation window.

[0015] As an improvement, the upper end of the substrate is provided with a flexible connecting strip that connects to the adjustment section, and the lower end of the substrate is detachably connected to the adjustment section via Velcro.

[0016] Compared with the prior art, the present invention has the following advantages: This invention incorporates a xiphoid process reference positioning structure at the center of the front of an open-style vest. By aligning the xiphoid process alignment mark on the positioning plate with the patient's xiphoid process position and securing the vest body with adjustable shoulder straps, a stable correspondence is established between the center front of the abdominal circumference measurement band and the anatomical position of the patient's anterior torso. This design ensures that the abdominal circumference band is on the same horizontal plane during each measurement, resolving the data drift problem caused by inconsistent measurement references and providing a reliable data foundation for dynamic monitoring of the patient's condition.

[0017] This invention employs a combination of a flat guide sleeve connected to the downward-facing belt and anti-rolling reinforcing edges. The flat guide sleeve is fixed to the left and right abdominal sides below the main body of the vest, limiting the forward and backward movement and large-angle twisting of the waist measurement belt during circumferential sliding. Simultaneously, the anti-rolling reinforcing edges on the upper and lower edges of the waist measurement belt enhance the lateral rigidity of the belt, preventing it from rolling inward or outward during tightening and fitting. This structure ensures that the measurement belt always conforms to the abdominal contour in a straight and correct posture, eliminating additional measurement errors introduced by changes in the belt's shape.

[0018] This invention incorporates multiple flexible pressure sensors spaced apart on a flexible skin-adhesive layer, along with a processing module. This module monitors the periodic pressure signals generated by the patient's abdominal wall during respiration in real time, automatically identifying plateau segments (corresponding to the end-expiratory resting phase) where the pressure change rate is below a set threshold. It then issues reading instructions to medical personnel via light, sound, or vibration alerts. This mechanism objectively locks the timing of abdominal circumference measurement to a uniform respiratory phase, eliminating measurement deviations caused by differences between inspiratory and expiratory states, and significantly improving the accuracy of repeated measurements.

[0019] This invention integrates a light-corrected jaundice colorimetric component into an adjustable shoulder strap. This component not only features a jaundice gradation zone but also includes a grayscale reference zone and a white reference zone. Before colorimetric analysis, healthcare professionals can first confirm that the white reference zone is not discolored and that the grayscale reference zone has discernible gradations, thus quickly calibrating the current ambient lighting conditions. The patient's skin or sclera color is then compared to the jaundice gradation. This design provides a built-in, repeatable light reference background for bedside jaundice assessment, effectively reducing ambient light interference and individual subjective differences, and improving the standardization of jaundice grading determination. The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the light-corrected jaundice colorimetric component in this invention; Figure 3 This is a schematic diagram of the abdominal circumference measuring belt and pressure detection mechanism in this invention. Figure 1 ; Figure 4 This is a schematic diagram of the abdominal circumference measuring belt and pressure detection mechanism in this invention. Figure 2 .

[0022] Figure label: 1. Open-style vest body; 11. Back and side support; 12. Adjustable shoulder straps; 121. Fixing section; 122. Adjustment section; 123. Adjustment buckle; 13. Downward strap; 14. Flat guide sleeve; 2. Waist circumference measuring band; 21. Non-elastic graduation layer; 22. Flexible skin-adhesive layer; 23. Anti-rolling reinforcing edge; 24. Waist circumference measuring graduations; 3. Xiphoid process reference positioning structure; 31. Positioning plate; 32. Xiphoid process alignment mark; 4. Pressure detection mechanism; 41. Flexible pressure sensor; 42. Processing module; 421. Housing; 5. Illumination-corrected jaundice colorimetric component; 51. Skin observation window; 52. Jaundice color gradation area; 53. Grayscale reference area; 54. White reference area; 55. Substrate; 56. Flexible connecting strip; 57. Velcro. Detailed Implementation

[0023] The present invention will be further described below through several exemplary embodiments. Those skilled in the art can make various modifications or substitutions to the following embodiments without departing from the technical principles and core concepts of the present invention, and the modified solutions will still fall within the protection scope of the present invention. The accompanying drawings and descriptions of the embodiments in this specification are for illustrative purposes only and are not intended to limit the protection scope of the present invention.

[0024] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features. In this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the accompanying drawings and specific circumstances.

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, this embodiment of the invention provides a vest-type abdominal circumference measurement device with jaundice colorimetric function, including an open vest body 1, an abdominal circumference measuring belt 2, a xiphoid process reference positioning structure 3, a pressure detection mechanism 4, and a light-corrected jaundice colorimetric component 5.

[0027] The open-style vest body 1 forms the wearing base for the patient's torso. The open-style vest body 1 has a back support portion 11, which is located on the patient's back when worn. Adjustable shoulder straps 12 are connected to the upper two sides of the back support portion 11, which extend from the patient's shoulders, allowing the back support portion 11 to hang on the patient's back. Thus, the back support portion 11 and the adjustable shoulder straps 12 first establish the wearing fulcrum for the upper torso.

[0028] The open-style vest body 1 also includes a front positioning part located in the middle of the front side of the patient's torso. The front positioning part is a flexible sheet-like part or a strap-like connecting part connected to the front end of the left and right adjustable shoulder straps 12. When worn, the front positioning part is located on the front side of the patient's chest-abdomen junction area, and together with the back support part 11 and the left and right adjustable shoulder straps 12, forms a wearing support structure around the patient's shoulders, back, and chest. The xiphoid process reference positioning structure 3 is fixed to the outside of the front positioning part, so that the xiphoid process reference positioning structure 3 has a stable mounting base on the front side of the patient's torso.

[0029] The adjustable shoulder strap 12 includes a fixing section 121, an adjusting section 122, and an adjusting buckle 123. One end of the adjusting section 122 is connected to the upper part of the back support 11, and the adjusting section 122 extends from above the patient's shoulder to the front of the patient's torso. One end of the fixing section 121 is connected to the front positioning part of the open vest body 1, and the other end of the fixing section 121 is connected to the adjusting section 122 via the adjusting buckle 123. After passing through the adjusting buckle 123, the adjusting section 122 forms a length adjustment section. Medical staff can adjust the relative height between the back support 11 and the front positioning part by changing the length of the adjusting section 122 at the adjusting buckle 123, so that the open vest body 1 forms a stable suspension between the patient's shoulder, back, and chest. After the adjusting section 122 passes through or is connected to the adjusting buckle 123, medical staff can adjust the suspension height of the open vest body 1 relative to the patient's shoulder by changing the connection length of the adjusting section 122 at the adjusting buckle 123. After the adjustable shoulder straps 12 on both sides are adjusted, the back support part 11 is close to the patient's back, and the downward straps 13 on both sides of the open vest body 1 are in a natural hanging or taut state.

[0030] The open-style vest body 1 has descending straps 13 on both sides. The descending straps 13 are flat strips, with their upper ends sewn or heat-pressed to the sides of the open-style vest body 1, and their lower ends connected to flat guide sleeves 14. The descending straps 13 extend downwards from the sides of the open-style vest body 1, positioning the flat guide sleeves 14 at the waist circumference measurement height below the open-style vest body 1. At least one descending strap 13 is provided on each side; when multiple descending straps 13 are provided on the same side, they are spaced apart and connected between the sides of the open-style vest body 1 and the flat guide sleeves 14 in the front-to-back direction, making it difficult for the flat guide sleeves 14 to rotate in the front-to-back direction.

[0031] The flat guide sleeve 14 is a flat, sleeve-shaped component through which the abdominal circumference measuring band 2 passes. The flat guide sleeve 14 is arranged circumferentially along the patient's abdomen, and its inner cavity is adapted to the band-shaped shape of the abdominal circumference measuring band 2. After the abdominal circumference measuring band 2 is inserted into the flat guide sleeve 14, its upper and lower sidewalls correspond to the upper and lower edges of the abdominal circumference measuring band 2, respectively, and its inner and outer sidewalls correspond to the flexible skin-adhesive layer 22 and the inelastic graduated layer 21 of the abdominal circumference measuring band 2, respectively. The abdominal circumference measuring band 2 can slide along its length within the flat guide sleeve 14, allowing it to wrap around patients with different abdominal circumference sizes, and it can limit large-angle twisting of the abdominal circumference measuring band 2 in the ventral position.

[0032] The abdominal circumference measuring band 2 is arranged circumferentially along the patient's abdomen and includes an inelastic scale layer 21, a flexible skin-adhering layer 22, and an anti-rolling reinforcing edge 23. The inelastic scale layer 21 is located on the outer side of the abdominal circumference measuring band 2, and the abdominal circumference measuring scale 24 is continuously arranged along the length of the inelastic scale layer 21. The flexible skin-adhering layer 22 is located on the inner side of the abdominal circumference measuring band 2, and faces the patient's abdominal skin when worn for measurement. The anti-rolling reinforcing edge 23 extends along the upper and lower edges of the abdominal circumference measuring band 2, respectively, and is connected to the inelastic scale layer 21 and the flexible skin-adhering layer 22 to form a band-like whole. When the abdominal circumference measuring band 2 is tightened, the inelastic scale layer 21 bears the main tensile force, the flexible skin-adhering layer 22 conforms to the abdominal contour, and the anti-rolling reinforcing edge 23 restricts the edge of the band from folding inward or outward.

[0033] The abdominal circumference measuring band 2 has a zero end and a reading end, which overlap to form a reading area in the patient's anterior abdominal region. The edge of the zero end forms a reading reference edge, and the non-elastic scale layer 21 of the reading end is provided with an abdominal circumference measurement scale 24. During measurement, the abdominal circumference measuring band 2 forms a circumferential path along the patient's left, posterior or dorsal, right, and anterior abdominal sides. After passing through the flat guide sleeves 14 on both sides, the abdominal circumference measuring band 2 remains at the same measurement height. Medical staff pull the reading end to make the flexible skin-adhesive layer 22 fit against the patient's abdominal skin and overlap the reading end with the zero end. When the prompt device outputs a reading prompt, the medical staff uses the abdominal circumference measurement scale 24 corresponding to the reading reference edge of the zero end as the abdominal circumference reading.

[0034] The xiphoid process reference positioning structure 3 is located at the center of the front side of the open vest body 1. The xiphoid process reference positioning structure 3 includes a positioning piece 31 and a xiphoid process alignment mark 32. The positioning piece 31 is fixed to the outer side of the center of the front side of the open vest body 1, with its lower edge positioned above the center of the front of the abdominal circumference measuring band 2. The vertical center line of the positioning piece 31 is aligned with the center line of the center of the front of the abdominal circumference measuring band 2, and the xiphoid process alignment mark 32 is located on the positioning piece 31. During wear, medical personnel align the xiphoid process alignment mark 32 with the patient's xiphoid process position, and then adjust the left and right adjustable shoulder straps 12 to maintain symmetry of the open vest body 1 on the patient's torso. Because the positioning piece 31 and the center of the front of the abdominal circumference measuring band 2 have a fixed positional relationship, once the xiphoid process alignment mark 32 is aligned, the position of the center of the front of the abdominal circumference measuring band 2 can be determined.

[0035] A pressure detection mechanism 4 is mounted on the abdominal circumference measuring band 2, and includes flexible pressure sensors 41 and a processing module 42. Multiple flexible pressure sensors 41 are spaced apart along the length of the abdominal circumference measuring band 2 on the flexible skin-adhesive layer 22, and are distributed at positions on the abdominal circumference measuring band 2 corresponding to the patient's anterior and left / right lateral abdominal regions. The flexible pressure sensors 41 are attached to the patient's abdomen along with the flexible skin-adhesive layer 22. As the patient's abdominal wall rises and falls with respiratory movements, the contact pressure on the flexible pressure sensors 41 changes periodically with the displacement of the abdominal wall.

[0036] The flexible pressure sensor 41 is electrically connected to the processing module 42 via a flexible wire. The flexible wire is positioned between the inelastic scale layer 21 and the flexible skin-adhesive layer 22, extending along the length of the abdominal circumference measuring band 2, and converging into the acquisition interface of the processing module 42 at its location. This arrangement prevents the flexible wire from being directly exposed to the patient's skin and avoids obstructing the abdominal circumference measuring scale 24 on the inelastic scale layer 21.

[0037] The processing module 42 is disposed on the outside of the non-elastic scale layer 21. The processing module 42 includes a housing 421, a circuit board, a power supply, a data acquisition interface, a display, and a prompting device. The circuit board, power supply, and data acquisition interface are disposed inside the housing 421. The flexible pressure sensor 41 is electrically connected to the data acquisition interface via a flexible wire. The output end of the data acquisition interface is connected to the input end of the circuit board, and the output end of the circuit board is connected to the prompting device. The display and prompting device are disposed on the front of the housing 421. The back of the housing 421 is fixed to the outside of the non-elastic scale layer 21 by a flexible connecting piece.

[0038] The circuit board receives pressure change signals from the acquisition interface and outputs trigger signals to the prompting device based on the continuous periodic segments and plateau segments in the pressure change signals. The plateau segment is a signal segment where the pressure change rate is lower than a set threshold within a preset time. Specifically, the circuit board acquires pressure values ​​output by multiple flexible pressure sensors 41 according to a preset sampling period and calculates the difference between pressure values ​​at adjacent sampling times to obtain the pressure change corresponding to each flexible pressure sensor 41. When the pressure change of at least two flexible pressure sensors 41 located in the anterior abdominal region and the left and right lateral abdominal regions is less than the set threshold within a continuous preset time window, the circuit board determines that the current pressure signal has entered the plateau segment. After determining that it has entered the plateau segment, the circuit board outputs a trigger signal to the prompting device, which generates a light prompt, sound prompt, or vibration prompt. Medical personnel read the abdominal circumference measurement scale 24 when the prompting device outputs a prompt. The prompting device is at least one of a light-emitting device, a buzzer, or a vibrating device; when the circuit board outputs a trigger signal, the prompting device generates a corresponding prompt, allowing medical personnel to read the abdominal circumference measurement scale 24 on the non-elastic scale layer 21 at the prompt time.

[0039] The light-corrected jaundice colorimetric component 5 is connected to the outer surface of the adjustment section 122 of the adjustable shoulder strap 12. The light-corrected jaundice colorimetric component 5 includes a skin observation window 51, a jaundice gradation area 52, a grayscale reference area 53, a white reference area 54, a substrate 55, a flexible connecting strap 56, and Velcro 57. The substrate 55 is a sheet-like component that supports the skin observation window 51, the jaundice gradation area 52, the grayscale reference area 53, and the white reference area 54. The skin observation window 51 extends through the upper end of the substrate 55, and the jaundice gradation area 52, the grayscale reference area 53, and the white reference area 54 are disposed on the substrate 55 and adjacent to the skin observation window 51.

[0040] Jaundice gradation area 52 includes multiple jaundice gradation blocks, arranged sequentially from light to dark along the length of substrate 55. Grayscale reference area 53 includes multiple grayscale reference blocks, arranged sequentially from light to dark along the length of substrate 55. White reference area 54 includes a white reference block, which is located on one side of grayscale reference area 53. Jaundice gradation area 52, grayscale reference area 53, and white reference area 54 are all located in the adjacent area of ​​skin observation window 51, and all three are located on the same outer surface of substrate 55 as skin observation window 51. When medical personnel perform jaundice colorimetry, the skin or sclera area to be observed is exposed through skin observation window 51, and the color to be observed, jaundice gradation blocks, grayscale reference blocks, and white reference blocks are under the same observation direction and the same ambient lighting conditions. When medical staff perform jaundice colorimetry, they place the skin area to be observed in the corresponding position of the skin observation window 51, so that the color to be observed, the jaundice gradation area 52, the grayscale reference area 53, and the white reference area 54 are under the same observation conditions. The grayscale reference area 53 and the white reference area 54 are used to provide a reference background under the same lighting, reducing the judgment bias caused by changes in ambient light when observing skin color alone.

[0041] The upper end of the substrate 55 is connected to the adjustment section 122 via a flexible connecting strap 56. The lower end of the substrate 55 is detachably connected to the adjustment section 122 via Velcro 57. When the light-corrected jaundice colorimetric component 5 is not in use, the lower end of the substrate 55 is attached to the outer surface of the adjustment section 122 via Velcro 57, so that the substrate 55 is placed along the outer surface of the adjustable shoulder strap 12. When colorimetry is required, medical personnel release the Velcro 57 connection at the lower end of the substrate 55, and the substrate 55 is flipped outward with the end where the flexible connecting strap 56 is connected as the connection end. After colorimetry is completed, the substrate 55 returns to the outer surface of the adjustment section 122 and is re-secured by the Velcro 57.

[0042] In specific implementation of this invention: The patient lies supine or sits stably. Medical staff place the open-style vest body 1 on the patient's torso, with the back support 11 against the patient's back. The left and right adjustable shoulder straps 12 are placed on the patient's shoulders respectively. The adjustment section 122 is adjusted in length by adjusting buckles 123, so that the open-style vest body 1 forms a stable suspension on the patient's shoulders.

[0043] Medical staff observe the xiphoid process reference positioning structure 3 on the front middle of the main body 1 of the open vest, and align the xiphoid process alignment mark 32 on the positioning piece 31 with the position of the patient's xiphoid process. After alignment, the descending bands 13 on the left and right sides naturally extend downwards, and the flat guide sleeves 14 are located at the measurement height on both sides of the patient's abdomen along with the descending bands 13.

[0044] The abdominal circumference measuring band 2 is inserted into the flat guide sleeves 14 on both sides and wraps around the patient's abdomen. The medical staff positions the flexible skin-adhesive layer 22 towards the patient's abdominal skin and the non-elastic graduated layer 21 towards the outside. When the end of the abdominal circumference measuring band 2 is pulled, the band slides along the flat guide sleeves 14 and gradually conforms to the circumferential surface of the patient's abdomen. The flat guide sleeves 14 guide the abdominal circumference measuring band 2 on the left and right abdominal sides, and the anti-rolling reinforcing edge 23 prevents the edge of the abdominal circumference measuring band 2 from rolling up during tightening.

[0045] After the abdominal circumference measuring band 2 is attached, the flexible pressure sensor 41 experiences contact pressure between the patient's abdomen and the flexible skin-adhesive layer 22. The flexible pressure sensor 41 generates periodic pressure signals with the patient's abdominal wall breathing movements. The processing module 42 receives the pressure signals transmitted by the flexible pressure sensor 41 and sends the pressure signals to the circuit board via the acquisition interface. The circuit board reads the pressure values ​​of multiple flexible pressure sensors 41 according to a preset sampling period and calculates the pressure change at adjacent sampling times. During the patient's breathing, the abdominal wall undulations cause the flexible pressure sensor 41 to output periodically changing pressure signals; when the pressure change of at least two flexible pressure sensors 41 in the anterior abdominal region and the left and right lateral abdominal regions is less than a set threshold within a consecutive preset time window, the circuit board determines that the contact pressure between the abdominal circumference measuring band 2 and the patient's abdomen has entered the plateau segment and outputs a trigger signal to the prompt device. After the prompt device emits a light prompt, sound prompt, or vibration prompt, the medical staff reads the abdominal circumference measuring scale 24 on the inelastic scale layer 21.

[0046] When jaundice colorimetry is required, medical staff open the Velcro 57 at the lower end of the light-corrected jaundice colorimetry component 5, allowing the substrate 55 to flip open from the outer surface of the adjustment section 122 of the adjustable shoulder strap 12. The medical staff brings the skin observation window 51 close to the area of ​​skin or sclera to be observed, allowing the color to be observed to be revealed through the skin observation window 51. The medical staff first observes the white reference block in the white reference area 54 and the difference in brightness between adjacent grayscale reference blocks in the grayscale reference area 53. When the white reference block does not show obvious color cast and adjacent grayscale reference blocks can be distinguished by the naked eye, the medical staff then compares the skin or sclera color revealed in the skin observation window 51 with multiple jaundice color scale blocks in the jaundice color scale area 52 one by one, and records the closest jaundice color scale. After colorimetry is completed, the substrate 55 is reattached to the outer surface of the adjustment section 122 and secured with the Velcro 57. After colorimetric analysis, the substrate 55 is reattached to the outer surface of the adjustment section 122 and secured with Velcro 57.

[0047] Through the above-described wearing and measurement process, the open vest body 1, adjustable shoulder straps 12, descending straps 13, and flat guide sleeves 14 together form the wearing support path of the abdominal circumference measuring belt 2. The abdominal circumference measuring belt 2 is inserted into the flat guide sleeves 14 on both sides along the circumference of the abdomen. The xiphoid process reference positioning structure 3 uses the patient's xiphoid process position as the front alignment reference, so that the front middle part of the abdominal circumference measuring belt 2 establishes a correspondence with the anterior anatomical position of the patient's torso. The abdominal circumference measuring belt 2 completes the abdominal circumference reading through the non-elastic scale layer 21 and fits against the patient's abdomen through the flexible skin-adhesive layer 22. The pressure detection mechanism 4 collects the periodic pressure signal formed by the patient's abdominal wall with respiratory movement through the flexible pressure sensor 41 set on the flexible skin-adhesive layer 22. The processing module 42 outputs the reading prompt to the prompt device according to the periodic pressure signal. The light-corrected jaundice colorimetric component 5 forms a colorimetric observation area on the same substrate 55 through the skin observation window 51, the jaundice color level area 52, the gray reference area 53, and the white reference area 54. The abdominal circumference measurement belt 2, the pressure detection mechanism 4, and the light-corrected jaundice colorimetric component 5 are integrated into the same wearable device to form a coordinated relationship of measurement positioning, respiratory phase indication, and light-referenced colorimetry, enabling abdominal circumference measurement and jaundice colorimetry to be continuously performed at the bedside.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A vest-type abdominal girth measuring device with jaundice colorimetric function, characterized by, include: The open vest body (1) has a back support part (11), and adjustable shoulder straps (12) are connected to the upper two sides of the back support part (11). Flat guide sleeves (14) are connected to the two sides of the open vest body (1) through the down strap (13). The abdominal circumference measuring band (2) is inserted around the patient's abdomen into a flat guide sleeve (14). The abdominal circumference measuring band (2) includes an outer non-elastic scale layer (21), an inner flexible skin-adhesive layer (22), and anti-rolling reinforcing edges (23) at the upper and lower edges. The xiphoid reference positioning structure (3) is located in the middle of the front side of the open vest body (1); The pressure detection mechanism (4) has flexible pressure sensors (41) spaced along the length of the abdominal circumference measuring band (2) on the flexible skin-adhesive layer (22), and has a processing module (42) located outside the non-elastic scale layer (21) and electrically connected to the flexible pressure sensors (41). The light-corrected jaundice colorimetric component (5) is connected to the adjustable shoulder strap. The light-corrected jaundice colorimetric component (5) is provided with a skin observation window (51), a jaundice color scale area (52), a grayscale reference area (53) and a white reference area (54).

2. The vest-style abdominal girth measuring device with jaundice colorimetric function according to claim 1, characterized in that: The adjustable shoulder strap (12) includes a fixed section (121) and an adjustable section (122). The adjustable section (122) is provided with an adjusting buckle (123) connected to the fixed section (121). The light-corrected jaundice colorimetric component (5) is connected to the outer surface of the length adjustment section of the adjustable shoulder strap (12) on either side.

3. The vest type abdominal girth measuring device with jaundice colorimetric function according to claim 1, characterized in that, The xiphoid process reference positioning structure (3) includes: Positioning piece (31) is fixed to the outer side of the front middle part of the open vest body (1). The lower edge of the positioning piece (31) is located above the front middle part of the abdominal circumference measuring band (2), and the vertical center line of the positioning piece (31) is aligned with the center line of the front middle part of the abdominal circumference measuring band (2). A sciatic point alignment mark (32) is provided on the positioning piece (31).

4. The vest-style abdominal girth measuring device with jaundice colorimetric function according to claim 1, characterized in that: The downband (13) is a flat strip extending downward from both sides of the open vest body (1). At least one downband (13) is provided on each side. The upper end of the downband (13) is sewn or heat-pressed to the open vest body (1), and the lower end of the downband (13) is connected to the flat guide sleeve (14) for the flat guide sleeve (14) to be held at the waist measurement height below the open vest body (1).

5. A vest-type abdominal circumference measuring device with jaundice colorimetric function according to claim 1, characterized in that: The surface of the inelastic scale layer (21) is printed with continuous waist circumference measurement scales (24) along its length.

6. The vest-type abdominal circumference measuring device with jaundice colorimetric function according to claim 1, characterized in that: The flexible pressure sensor (41) is a flexible film pressure sensor. Multiple flexible pressure sensors (41) are distributed on the abdominal circumference measurement belt (2) corresponding to the patient's anterior abdominal area and left and right abdominal areas. The flexible pressure sensor (41) is electrically connected to the processing module (42) through a flexible wire. The flexible wire is arranged between the non-elastic scale layer (21) and the flexible skin-adhesive layer (22).

7. A vest-type abdominal circumference measuring device with jaundice colorimetric function according to claim 6, characterized in that: The processing module (42) includes a housing (421), a circuit board, a power supply, a data acquisition interface, a display and a prompt. The circuit board and the power supply are located inside the housing (421). The data acquisition interface is connected to a flexible wire. The display and the prompt are located on the front of the housing (421). The back of the housing (421) is fixed to the outside of the non-elastic scale layer (21) by a flexible connecting piece.

8. A vest-type abdominal circumference measuring device with jaundice colorimetric function according to claim 2, characterized in that: The light-corrected jaundice colorimetric component (5) includes a substrate (55), and the skin observation window (51) is opened through the upper end of the substrate (55). The jaundice color level area (52), gray reference area (53) and white reference area (54) are arranged sequentially from top to bottom on the substrate (55) and are adjacent to the skin observation window (51).

9. A vest-type abdominal circumference measuring device with jaundice colorimetric function according to claim 8, characterized in that: The upper end of the substrate (55) is provided with a flexible connecting strip (56) that is connected to the adjustment section (122), and the lower end of the substrate (55) is detachably connected to the adjustment section (122) via Velcro (57).

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