Abdominal pressure monitoring waist bridge device and method based on flexible sensor

Abstract

The invention relates to the technical field of waist bridge devices, in particular to an abdominal pressure monitoring waist bridge device and method based on a flexible sensor, and the device comprises a bed body, the interior of the bed body is provided with an assembly cavity, the top wall of the assembly cavity is provided with a rectangular hole, and the assembly cavity is internally provided with a lifting assembly. The lifting assembly comprises a left hydraulic cylinder and a right hydraulic cylinder which are fixedly mounted on the bottom wall of the assembly cavity, a supporting frame is detachably mounted at the tail ends of telescopic shafts of the two hydraulic cylinders, and an upper waist pad is detachably mounted on the top face of the supporting frame; an abdomen pressure monitoring assembly is detachably installed on the upper waist pad and comprises a binding belt bound to the abdomen, a flexible patch is arranged at the position, close to the abdomen, of the inner side of the binding belt, and a plurality of piezoresistive flexible sensors are fixedly installed on the side face, close to the abdomen, of the flexible patch. The piezoresistive flexible sensor is connected with a control host through a cable. The device has the advantages of waist lifting and abdomen pressure monitoring and is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waist bridge devices, in particular to an abdominal pressure monitoring waist bridge device and method based on a flexible sensor. BACKGROUND

[0002] In the field of clinical nursing and rehabilitation treatment, the waist bridge device is a key equipment for assisting patients in supporting the waist and adjusting the body position, and is widely used in the nursing of lumbar disease and postoperative rehabilitation; abdominal pressure monitoring is an important means to assess the abdominal cavity state of patients and avoid excessive support damage to abdominal organs, and the cooperation of the two is crucial to improve nursing safety and accuracy.

[0003] The invention patent with the authorized announcement number CN107374888B discloses a waist bridge device for a surgical bed, which comprises a waist bridge plate and two groups of waist bridge lifting mechanisms arranged below the waist bridge plate for lifting the waist bridge plate. Each group of waist bridge lifting mechanisms comprises a mounting seat, a first connecting rod group, a second connecting rod group and a fixing seat for fixing the waist bridge plate. A hydraulic cylinder is arranged on the mounting seat. The first connecting rod group comprises a first upper connecting rod, a first middle connecting rod and a first lower connecting rod which are sequentially hinged. The second connecting rod group comprises a second upper connecting rod, a second middle connecting rod and a second lower connecting rod which are sequentially hinged. The bottom ends of the first lower connecting rod and the second lower connecting rod are hinged to the mounting seat. The first middle connecting rod and the second middle connecting rod are hinged through a hinge shaft. The piston rod of the hydraulic cylinder is hinged perpendicularly to the hinge shaft. The top ends of the first upper connecting rod and the second upper connecting rod are hinged to the fixing seat. A limiting mechanism is further arranged below the fixing seat for limiting the maximum lifting height of the waist bridge plate and preventing the waist bridge plate from rotating. Compared with the prior art, the waist bridge device uses the limiting mechanism to position the waist bridge plate, which is simple and reliable.

[0004] Although the above technical solution has corresponding advantages, the existing waist bridge device only has a simple waist lifting and supporting function and cannot monitor the change of abdominal pressure of patients. Medical staff can only rely on experience to judge the lifting height and supporting force, which may easily lead to a sudden increase in abdominal cavity pressure due to excessive support, thereby damaging abdominal organs or affecting blood circulation. Especially for special groups such as postoperative patients and elderly patients, abdominal pressure abnormalities may cause serious complications, which seriously affects the nursing safety and treatment effect. In view of this, we propose an abdominal pressure monitoring waist bridge device and method based on a flexible sensor. SUMMARY

[0005] The purpose of the present application is to provide an abdominal pressure monitoring waist bridge device and method based on a flexible sensor to solve the defects proposed in the background.

[0006] To achieve the above purpose, the present application provides the following technical solutions: One of the purposes of the present application is to provide a flexible sensor-based abdominal pressure monitoring waist bridge device, which comprises a bed body, an assembly chamber is arranged in the interior of the bed body, a rectangular hole is arranged on the top wall of the assembly chamber, a lifting assembly is arranged in the assembly chamber, the lifting assembly comprises two left and right symmetrical hydraulic cylinders which are fixedly installed on the bottom wall of the assembly chamber, a support frame is detachably installed at the end of the telescopic shaft of the two hydraulic cylinders, an upper waist pad is detachably installed on the top surface of the support frame, an abdominal pressure monitoring assembly is detachably installed on the upper waist pad, the abdominal pressure monitoring assembly comprises a binding belt which is bound around the abdomen, a flexible patch is arranged on the inner side of the binding belt close to the abdominal position, a plurality of piezoresistive flexible sensors are fixedly installed on the side of the flexible patch close to the abdomen, and a control host is connected to the piezoresistive flexible sensors through a cable.

[0007] Preferably, a plurality of heat dissipation holes which are connected to the outside are arranged on one side wall of the assembly chamber, and the heat dissipation holes are arranged at an inclination of 30-45 degrees downward. This arrangement facilitates heat dissipation in the assembly chamber.

[0008] Preferably, a support plate is fixedly installed at the end of the telescopic shaft of the hydraulic cylinder, and the support frame is detachably installed on the top surface of the support plate. This arrangement facilitates the disassembly of the support frame and facilitates the maintenance of the hydraulic cylinder.

[0009] Preferably, an insertion slot is arranged on the upper surface of the support frame, an insertion plate is fixedly installed on the bottom surface of the upper waist pad, the insertion plate and the insertion slot are insertedly matched, and the insertion plate and the support frame are detachably connected through a plurality of fastening screws. This arrangement facilitates the installation and removal of the insertion plate.

[0010] Preferably, two left and right symmetrical pulling belts are fixedly installed on the top surface of the insertion plate, the end of the pulling belt penetrates through the upper waist pad and is fixedly installed with a plug male buckle, plug female buckles are fixedly installed on the two sides of the belt body of the binding belt through a restraint belt, and the plug female buckles and the plug male buckle are clampedly matched. This arrangement can limit the binding belt at the upper waist pad position and prevent displacement.

[0011] Preferably, a nap magic tape and a thorn magic tape are fixedly installed at the two ends of the binding belt, respectively, and the nap magic tape and the thorn magic tape are adhesively matched. This arrangement facilitates the fixing operation and is simple to operate.

[0012] Preferably, a key is arranged on the surface of the shell of the control host, and a display screen is also arranged on the surface of the shell of the control host, and a power cord is also arranged on the control host.

[0013] Preferably, a limiting convex column is fixedly installed on the outer side of each of the two end portions of the flexible patch, and a center hole is arranged on each of the two end portions of the binding belt, and the limiting convex column is arranged to pass out from the corresponding center hole part; This arrangement can limit the flexible patch by the binding belt to prevent displacement of the flexible patch.

[0014] Preferably, the width of the center hole is greater than the outer diameter of the limiting convex column, and the width of the center hole is less than the width of the flexible patch.

[0015] The second object of the present application is to provide an abdominal pressure monitoring method based on a flexible sensor, which comprises the above-mentioned abdominal pressure monitoring waist bridge device based on a flexible sensor and specifically comprises the following steps: S1, check whether the bed body, the assembly chamber and the heat dissipation hole are blocked by sundries, pass the limiting convex column of the flexible patch through the center hole of the binding belt, make the piezoresistive flexible sensor face the inside, start the control host, and initialize the equipment through the key; S2, the patient lies flat on the bed body, aligns the waist with the upper waist pad position, winds the binding belt around the abdomen and waist, makes the piezoresistive flexible sensor of the flexible patch adhere to the monitoring part of the abdomen, and adhesively fixes the binding belt through the suede magic tape and the pricked magic tape; then, the plug pin buckle of the upper waist pad upper pull belt is connected with the slot female buckle on the binding belt restraint belt, and the position of the binding belt is further fixed. S3, control the extension and retraction of the hydraulic cylinder, drive the support frame and the upper waist pad along the rectangular hole through the support plate, adjust to the comfortable height of the patient, and the piezoresistive flexible sensor collects the abdominal pressure data in real time, transmits the data to the control host through the cable, and displays the data on the display screen in real time, and the medical staff judges whether the pressure is appropriate according to the data. S4, after the monitoring is completed, the hydraulic cylinder is controlled to reset, the upper waist pad is driven to fall back to the rectangular hole part of the assembly chamber, the connection between the plug pin buckle and the slot female buckle is released, the suede magic tape and the pricked magic tape are torn, the binding belt and the flexible patch are removed, the control host is turned off, the power cord is unplugged, and the components are cleaned and stored after being cleaned.

[0016] Compared with the prior art, the present application has the following advantages: 1. The lifting assembly cooperates with the abdominal pressure monitoring assembly, the hydraulic cylinder of the lifting assembly drives the support frame to drive the upper waist pad to realize precise lifting of the waist, the piezoresistive flexible sensor on the flexible patch is attached to the abdomen to collect pressure data in real time and transmit to the control host, realizing the integration of waist lifting and abdominal pressure monitoring, avoiding the problem of over-support caused by relying on experience adjustment only, and achieving the effect of ensuring nursing safety and improving treatment effect.

[0017] 2. The adhesion of the two ends of the binding belt is matched with the adhesion of the two ends of the binding belt, the limiting convex column of the flexible patch is matched with the limiting hole of the binding belt, and the plug male buckle of the pulling belt is matched with the slot female buckle of the restraint belt, so that the flexible patch and the binding belt are firmly attached to the abdomen and are not easy to shift, and the size of the center hole is designed to adapt to the activity of the abdomen, ensuring the accuracy of the monitoring data of the piezoresistive flexible sensor.

[0018] 3. The detachable connection structure of the support frame and the support plate, the upper waist pad and the support frame is convenient for replacing the upper waist pad or repairing the hydraulic cylinder according to the needs of the patient, and the heat dissipation hole of the assembly chamber ensures the heat dissipation of the equipment during operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is one of the exploded structure schematic diagrams of the present application; Figure 3 is the second exploded structure schematic diagram of the present application; Figure 4 is the exploded structure schematic diagram of the lifting assembly of the present application; Figure 5 is a partial structure schematic diagram of the lifting assembly of the present application; Figure 6 is the exploded structure schematic diagram of the abdominal pressure monitoring assembly of the present application; Figure 7 is a structure schematic diagram of the flexible patch and the piezoresistive flexible sensor of the present application; Figure 8 is a partial structure schematic diagram of the abdominal pressure monitoring assembly of the present application; The meanings of the various reference numerals in the drawings are as follows: 1, bed body; 10, assembly chamber; 11, rectangular hole; 12, heat dissipation hole; 2, lifting assembly; 20, hydraulic cylinder; 201, support plate; 21, support frame; 211, plug-in slot; 22, plug-in plate; 23, upper waist pad; 24, pulling belt; 241, plug male buckle; 3, Abdominal pressure monitoring assembly; 30, Binding belt; 31, Velcro hook; 32, Velcro loop; 33, Restraint belt; 331, Slot female buckle; 34, Center hole; 35, Flexible patch; 351, Piezoresistive flexible sensor; 352, Limiting convex column; 36, Cable; 37, Control host; 371, Key; 372, Display screen; 38, Power cord. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0023] Please refer to Figures 1-8 The present application provides a technical solution: The embodiment provides a flexible sensor-based abdominal pressure monitoring waist bridge device, which comprises a bed body 1, an assembly chamber 10 is arranged in the bed body 1, a rectangular hole 11 is arranged on the top wall of the assembly chamber 10, a lifting assembly 2 is arranged in the assembly chamber 10, the lifting assembly 2 comprises two left and right symmetrical hydraulic cylinders 20 which are fixedly installed on the bottom wall of the assembly chamber 10, a support frame 21 is detachably installed at the tail end of the telescopic shaft of the two hydraulic cylinders 20, and an upper waist pad 23 is detachably installed at the top surface part of the support frame 21; an abdominal pressure monitoring assembly 3 is detachably installed at the upper waist pad 23, the abdominal pressure monitoring assembly 3 comprises a binding belt 30 which is bound to the abdomen, a flexible patch 35 is arranged at the inner side of the binding belt 30 close to the abdomen, a plurality of piezoresistive flexible sensors 351 are fixedly installed on the side of the flexible patch 35 close to the abdomen, the piezoresistive flexible sensors 351 are connected with a control host 37 through a cable 36, the hydraulic cylinders 20 drive the support frame 21 and the upper waist pad 23 to realize waist lifting, the piezoresistive flexible sensors 351 collect abdominal pressure data in real time and transmit the data to the control host 37, waist support and pressure monitoring integration are realized, the risk caused by empirical operation is avoided, and nursing safety is improved.

[0024] As shown in Figure 1 and Figure 2 , a plurality of heat dissipation holes 12 which are connected with the outside are arranged on one side cavity wall of the assembly chamber 10, the heat dissipation holes 12 are arranged at an inclination of 30°-45° downward, heat in the assembly chamber 10 is discharged in time through the heat dissipation holes 12, meanwhile, the inclined design reduces the falling of dust and sundries from the outside into the cavity, guarantees the stable operation of components such as the hydraulic cylinder 20, and prolongs the service life of the equipment.

[0025] As shown in Figure 5 , a support plate 201 is fixedly installed at the tail end of the telescopic shaft of the hydraulic cylinder 20, and the support frame 21 is detachably installed on the top surface of the support plate 201, so that the support frame 21 can be conveniently detached, maintenance of the hydraulic cylinder 20 is facilitated, the difficulty and cost of equipment maintenance are reduced, and the practicability of the device is improved.

[0026] In the embodiment, an insertion slot 211 is arranged on the upper surface of the support frame 21, an insertion plate 22 is fixedly installed on the bottom surface of the upper waist pad 23, the insertion plate 22 is insertedly matched with the insertion slot 211, and the insertion plate 22 is detachably connected with the support frame 21 through a plurality of fastening screws, so that the upper waist pad 23 can be detachably replaced.

[0027] As shown in Figure 4 and Figure 6As shown, the top surface of the plugboard 22 is fixedly installed with two left and right symmetrical pull belts 24, the ends of the pull belts 24 pass through the upper waist pad 23 and are fixedly installed with plug-in male buckles 241, the two sides of the binding belt 30 are fixedly installed with plug-in female buckles 331 through the restraint belts 33, the plug-in female buckles 331 and the plug-in male buckles 241 are clamped and matched, so that the binding belt 30 is limited at the corresponding position of the upper waist pad 23, preventing the binding belt 30 from moving during the change of the patient's body position or the lifting of the waist bridge, and ensuring the stability of the pressure monitoring.

[0028] As shown, Figure 6 The two ends of the binding belt 30 are fixedly installed with a velour magic tape 31 and a thorn magic tape 32, respectively, and the velour magic tape 31 and the thorn magic tape 32 are clamped and matched, so that the binding belt 30 can quickly wrap around the patient's abdomen and be fixed, which is simple and convenient to operate, reduces the operation difficulty of medical staff, and saves nursing time.

[0029] Specifically, the surface of the shell of the control host 37 is provided with a key 371, and the surface of the shell of the control host 37 is also provided with a display screen 372, and the control host 37 is also provided with a power cord 38, so that medical staff can conveniently operate the equipment through the key 371, and the display screen 372 displays the abdominal pressure data in real time, which is convenient for intuitive understanding of the patient's abdominal cavity state.

[0030] Further, the outer side of the two end portions of the flexible patch 35 is fixedly installed with a limiting protruding column 352, and the two end portions of the binding belt 30 are provided with a center hole 34, so that the flexible patch 35 is limited inside the binding belt 30, avoiding the deviation of the monitoring point caused by the displacement of the flexible patch 35, and ensuring the accuracy of the data collected by the pressure resistance type flexible sensor 351.

[0031] In addition, the width of the center hole 34 is greater than the outer diameter of the limiting protruding column 352, and the width of the center hole 34 is less than the width of the flexible patch 35, so that the limiting protruding column 352 can move slightly in the center hole 34, adapt to the slight movement of the patient's abdomen, and prevent the flexible patch 35 from falling off from the center hole 34.

[0032] It is worth mentioning that the power for the hydraulic cylinder 20 is provided by a set of hydraulic control system (not shown in the figure), which includes hydraulic pump station, electromagnetic reversing valve, pressure sensor, etc. The specific control logic is as follows: the medical staff inputs lifting / descending / stop instructions through the corresponding controller outside, the controller transmits electrical signals to the electromagnetic reversing valve of the hydraulic system; the electromagnetic reversing valve switches the valve core position after receiving the signal, realizing the change of hydraulic oil flow direction; when the instruction is lifting, the electromagnetic reversing valve switches to the oil inlet passage, and the high-pressure hydraulic oil output by the external hydraulic pump station enters the rodless cavity of the hydraulic cylinder 20 through the reversing valve, pushing the piston and telescopic shaft to stretch out upward; when the instruction is descending, the electromagnetic reversing valve switches to the oil return passage, and the high-pressure hydraulic oil enters the cylinder cavity of the hydraulic cylinder 20, pushing the piston and telescopic shaft to retract downward; when the hydraulic cylinder 20 stops moving, the electromagnetic reversing valve is powered off and reset, the valve core closes the oil way, and the hydraulic oil on both sides of the piston of the hydraulic cylinder 20 is sealed, realizing self-locking by using the incompressibility of the hydraulic oil, so that the upper waist pad 23 is stably kept at the set height and will not be displaced due to the weight of the patient or external force.

[0033] It is worth noting that when the piezoresistive flexible sensor 351 is attached to the patient's abdomen, the abdominal pressure will cause the flexible sensitive material of the piezoresistive flexible sensor 351 to deform, and the cross-sectional area of the internal conductive path will change accordingly, resulting in a change in the resistance value of the piezoresistive flexible sensor 351. The greater the pressure, the more obvious the change in resistance value. The piezoresistive flexible sensor 351 establishes a connection with the control host 37 through the cable 36, and transmits the analog signal of the change in resistance value to the signal processing module inside the control host 37 in real time. After the control host 37 receives the analog signal of the sensor, it first converts the analog signal into a digital signal through the built-in A / D converter; then, the core processing unit of the control host 37 converts the digital signal into an intuitive abdominal pressure value according to the preset calibration algorithm. The control host 37 compares the real-time pressure value with the preset safety threshold value, and if the pressure exceeds the threshold value, it will automatically trigger the early warning logic. The medical staff can input various instructions to the control host 37 by operating the keys 371, such as parameter setting instructions: setting the abdominal pressure safety threshold, data sampling frequency, monitoring time, etc. The control host 37 transmits the processed pressure data, device running state, warning information, etc. to the display screen 372 through the driving module for real-time display.

[0034] Finally, it needs to be explained that the hydraulic cylinder 20, the corresponding hydraulic source, the hydraulic control system, the piezoresistive flexible sensor 351, the control host 37, the key 371, the display screen 372 and the external power supply and other components involved in the present application are all general standard components or components known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through conventional experimental methods, all the electrical components in the idle place of the device are connected by wires, the specific connection means should be referred to the working principle in the present application, and the electrical components are connected in the order of working sequence, and the detailed connection means are all known in the art.

[0035] In addition, the present embodiment also provides a flexible sensor-based abdominal pressure monitoring method, which comprises the flexible sensor-based abdominal pressure monitoring waist bridge device described above, and specifically comprises the following steps: S1, check the bed body 1, the assembly chamber 10 and the heat dissipation hole 12 for no foreign matter blockage; make the limiting protruding column 352 of the flexible patch 35 pass through the center hole 34 of the binding belt 30, so that the piezoresistive flexible sensor 351 faces the inside, start the control host 37, initialize the equipment through the key 371, complete the zero point calibration of the piezoresistive flexible sensor 351, set the abdominal pressure safety threshold range, and check that the display screen 372 displays normally and the signal transmission of each component is smooth; S2, the patient lies flat on the bed body 1, aligns the waist with the position of the upper waist pad 23, ensures that there is no clothing wrinkle and no hard foreign matter shielding the monitoring part on the patient's abdomen, winds the binding belt 30 around the abdomen and waist, makes the piezoresistive flexible sensor 351 of the flexible patch 35 adhere to the abdominal monitoring part, adheres and fixes the binding belt 30 through the suede magic tape 31 and the thorn magic tape 32, the adhesion degree is appropriate to be "close adhesion and not affect the patient's breathing", avoid too loose to cause sensor displacement or too tight to compress the abdomen and affect the accuracy of pressure data; then, the plug male buckle 241 of the upper pulling belt 24 is connected with the slot female buckle 331 on the restraint belt 33 of the binding belt 30, and the position of the binding belt 30 is further fixed; S3, control the hydraulic cylinder 20 telescopic, lifting speed control in 5mm / s~10mm / s, avoid fast lifting cause patient discomfort or pressure data sudden change;Hydraulic cylinder 20 through the support plate 201 driven support frame 21, upper waist pad 23 along the rectangular hole 11 lifting, adjust to patient comfortable height;Piezoresistive flexible sensor 351 real-time acquisition abdominal pressure data, through the cable 36 transmission to control host 37, and real-time display on the display screen 372, medical staff according to the data to determine whether the pressure is appropriate, medical staff continuously observe data changes, if the pressure close to or exceed the preset safety threshold, immediately control the hydraulic cylinder 20 fine adjustment down, until the pressure is in the safe range;Monitoring process every 5~10 minutes record once pressure data, if abnormal data fluctuation, check sensor state and equipment connection in time; S4, after monitoring, control the hydraulic cylinder 20 reset, driven upper waist pad 23 back to the rectangular hole 11 part of the assembly chamber 10;Unplug the plug male buckle 241 and the slot female buckle 331, tear off the surface magic tape 31 and the magic tape 32, remove the binding belt 30 and flexible patch 35;Turn off the control host 37, pull out the power cord 38, clean up the components, use sterile cleaning cloth clean up the dirt on the surface of the binding belt 30 and flexible patch 35, check piezoresistive flexible sensor 351 no damage, cable 36 no damage, the components are classified to clean and dry storage space, avoid extrusion flexible patch 35.

[0036] The above shows and describes the basic principles of the present application, the main features and advantages of the present application. The skilled in the art should understand that the present application is not limited to the above examples, the above examples and the description described in the specification is only the preferred example of the present application, and is not intended to limit the present application, without departing from the spirit and scope of the present application, the present application will have various changes and improvements, these changes and improvements all fall within the scope of the claimed present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flexible sensor based abdominal pressure monitoring waist bridge device comprising a bed body (1), characterized in that: The inside of the bed body (1) is provided with an assembly chamber (10), a rectangular hole (11) is arranged on the top wall of the assembly chamber (10), a lifting assembly (2) is arranged in the assembly chamber (10), the lifting assembly (2) comprises two left and right symmetrical hydraulic cylinders (20) fixedly installed on the bottom wall of the assembly chamber (10), a support frame (21) is detachably installed at the end of the telescopic shaft of the two hydraulic cylinders (20), and an upper waist pad (23) is detachably installed on the top surface of the support frame (21); an abdominal pressure monitoring assembly (3) is detachably installed at the upper waist pad (23), the abdominal pressure monitoring assembly (3) comprises a binding belt (30) bound around the abdomen, a flexible patch (35) is arranged on the inner side of the binding belt (30) close to the abdomen, a plurality of piezoresistive flexible sensors (351) are fixedly installed on the side of the flexible patch (35) close to the abdomen, and a control host (37) is connected to the piezoresistive flexible sensors (351) through a cable (36).

2. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 1, wherein: A plurality of heat dissipation holes (12) connected to the outside are arranged on one side cavity wall of the assembly chamber (10), and the heat dissipation holes (12) are arranged at an inclination of 30°-45° downward.

3. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 1, wherein: A support plate (201) is fixedly installed at the end of the telescopic shaft of the hydraulic cylinder (20), and the support frame (21) is detachably installed on the top surface of the support plate (201).

4. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 1, wherein: An insertion slot (211) is arranged on the upper surface of the support frame (21), an insertion plate (22) is fixedly installed on the bottom surface of the upper waist pad (23), the insertion plate (22) and the insertion slot (211) are insertedly matched, and the insertion plate (22) and the support frame (21) are detachably connected through a plurality of fastening screws.

5. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 4, wherein: Two left and right symmetrical pull belts (24) are fixedly installed on the top surface of the insertion plate (22), the ends of the pull belts (24) pass through the upper waist pad (23) and are fixedly installed with plug-in male buckles (241), plug-in female buckles (331) are fixedly installed on the two side belt bodies of the binding belt (30) through restraining belts (33), and the plug-in female buckles (331) and the plug-in male buckles (241) are clampedly matched.

6. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 1, wherein: A suede magic tape (31) and a thorn magic tape (32) are fixedly installed at the two ends of the binding belt (30) respectively, and the suede magic tape (31) and the thorn magic tape (32) are adhesively matched.

7. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 1, wherein: A key (371) is arranged on the surface of the shell of the control host (37), a display screen (372) is further arranged on the surface of the shell of the control host (37), and a power cord (38) is further arranged on the control host (37).

8. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 1, wherein: Limiting convex columns (352) are fixedly installed on the outer sides of the two end belt bodies of the flexible patch (35), and center holes (34) are arranged on the two end belt bodies of the binding belt (30), and the limiting convex columns (352) pass through the corresponding center holes (34).

9. The flexible sensor-based abdominal pressure monitoring waist bridge device of claim 8, wherein: The width of the center hole (34) is greater than the outer diameter of the limiting column (352), and the width of the center hole (34) is less than the width of the flexible patch (35).

10. A method of monitoring abdominal pressure based on a flexible sensor, comprising the flexible sensor-based abdominal pressure monitoring waist bridge device according to any one of claims 1-9, characterized in that, Specifically comprising the following steps: S1, check the bed body (1), the assembly chamber (10) and the heat dissipation hole (12) without impurities blocking; the limiting column (352) of the flexible patch (35) passes through the center hole (34) of the binding belt (30), so that the piezoresistive flexible sensor (351) faces the inside, the control host (37) is started, and the device is initialized through the key (371); S2, the patient lies flat on the bed body (1), so that the waist is aligned with the position of the upper waist pad (23); the binding belt (30) is wrapped around the abdomen and waist, so that the piezoresistive flexible sensor (351) of the flexible patch (35) is attached to the monitoring part of the abdomen, and the binding belt (30) is fixed by the adhesive fixing of the suede magic tape (31) and the thorn magic tape (32); the plug pin (241) of the upper waist pad (23) is inserted into the slot female buckle (331) on the binding belt (30) restraint belt (33) and is connected, and the position of the binding belt (30) is further fixed; S3, control the extension and retraction of the hydraulic cylinder (20), the hydraulic cylinder (20) drives the support frame (21) and the upper waist pad (23) to lift along the rectangular hole (11) through the support plate (201), and the comfortable height of the patient is adjusted; the piezoresistive flexible sensor (351) collects the abdominal pressure data in real time, which is transmitted to the control host (37) through the cable (36) and displayed on the display screen (372) in real time, and the doctor determines whether the pressure is appropriate according to the data; S4, after the monitoring is completed, the hydraulic cylinder (20) is controlled to reset, driving the upper waist pad (23) to fall back to the position of the rectangular hole (11) of the assembly chamber (10); the plug pin (241) and the slot female buckle (331) are disconnected, the suede magic tape (31) and the thorn magic tape (32) are torn off, and the binding belt (30) and the flexible patch (35) are removed; the control host (37) is turned off, the power cord (38) is pulled out, and the components are cleaned and stored.

Images