A portable auxiliary diagnostic instrument for urticaria

Abstract

The present invention discloses a portable auxiliary diagnostic instrument for urticaria, comprising a main unit and a handle control component, wherein the main unit is electrically connected to the handle control component, wherein the handle control component comprises a shell, a temperature inducing device, a scratch inducing device and a pressure inducing device, wherein the temperature inducing device is located on both sides of the interior of the shell, the scratch inducing device is located on both sides of the exterior of the shell, and the pressure inducing device is located on the inner side of the temperature inducing device. The present invention has the advantages of simple structure and high integration, and is provided with a scratch inducing device to accurately diagnose artificial urticaria, a temperature inducing device to accurately diagnose cold and hot urticaria, and a temperature inducing device to accurately diagnose delayed and pressure urticaria, and is convenient for standardized diagnosis of inducible urticaria, and quantitatively integrates pressure, temperature, scratch and other inducing detection into one, and is easy to use and popularize.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary diagnosis instruments, and in particular to a portable urticaria auxiliary diagnosis instrument. Background Art

[0002] In the prior art, urticaria is a common skin disease, and about 15-25% of individuals suffer from this disease in their lifetime. The course of the disease exceeds 6 weeks, which is called chronic urticaria, and its prevalence in the population is 0.5-5%. Chronic urticaria is divided into chronic spontaneous urticaria, inducible urticaria and other types. Acute urticaria is easy to control and has a good prognosis, but chronic urticaria usually affects life and work, resulting in a decrease in the quality of life of patients. 10% to 50% of patients with chronic spontaneous urticaria last for more than 3 to 5 years, with a persistent course and difficult treatment. Urticaria is an allergic disease caused by various factors, and finding allergens plays a vital role in the treatment of urticaria.

[0003] There are many clinical methods for confirming induced urticaria, such as the ice cube test (i.e. placing ice cubes in a sealed plastic bag above the forearm for 5-10 minutes) is usually used to confirm cold-induced urticaria; artificial urticaria (skin scratching) is diagnosed by gently pressing the skin or using a device such as a skin measuring device; aquagenic urticaria is identified by immersing body parts in warm water, etc.; delayed pressure urticaria is diagnosed by applying weight / pressure to the patient's thigh or shoulder, etc. However, the method is rough in general, and the method and time are not uniform in clinical implementation, and there is no standard; the results show that the method is single, inconvenient to use, and it is impossible to find allergens. Such diagnostic instruments are lacking in the existing technology. Summary of the invention

[0004] The purpose of the invention is to provide a portable urticaria auxiliary diagnostic instrument.

[0005] To achieve the above purpose, the technical solution proposed by the present invention is:

[0006] A portable urticaria auxiliary diagnostic instrument includes a main unit and a handle control assembly. The main unit is electrically connected to the handle control assembly. The handle control assembly includes a shell, a temperature inducing device, a scratch inducing device and a pressure inducing device. The temperature inducing device is located on both sides of the shell, the scratch inducing device is located on both sides of the shell, and the pressure inducing device is located on the inner side of the temperature inducing device.

[0007] The temperature inducing device includes a protective shell, a refrigeration mechanism, a heating mechanism, an insulating filler and a diagnostic probe. There are two protective shells, which are symmetrically arranged inside the shell and slidably connected to the shell. A refrigeration mechanism and a heating mechanism are respectively arranged in the two protective shells. The insulating filler is arranged between the protective shell and the refrigeration mechanism and the heating mechanism. There are two diagnostic probes, which are arranged at the lower ends of the two protective shells corresponding to the refrigeration mechanism and the heating mechanism respectively and are fixedly connected to the protective shells. Temperature sensors are arranged between the diagnostic probes and the refrigeration mechanism and the heating mechanism.

[0008] The refrigeration mechanism includes a copper tube cold storage device and a connecting hose. The copper tube cold storage device is arranged inside the protective shell on one side and is fixedly connected to the protective shell. One end of the connecting hose is arranged at the upper end of the protective shell where the copper tube cold storage device is arranged and passes through the shell and the protective shell to communicate with the copper tube cold storage device. The copper tube cold storage device is connected to the corresponding diagnostic probe.

[0009] The heating mechanism comprises a PTC heating plate, which is arranged at the lower end of the inner part of the protective shell on the other side and fixedly connected to the protective shell, and the PTC heating plate is communicated with the corresponding diagnostic probe.

[0010] The scratch inducing device includes a scratch device, a flexible pressure sensor and a rubber pad. There are two scratch devices, which are symmetrically arranged on both sides of the outside of the shell and fixedly connected to the shell. A scratch contact surface is provided at the lower end of the scratch device, and the scratch contact surface is multi-toothed. There are two flexible pressure sensors, which are respectively arranged at the ends of the two scratch contact surfaces. There are two rubber pads, and the two flexible pressure sensors corresponding to the rubber pads are arranged at the ends of the scratch contact surfaces and fixedly connected to the scratch contact surfaces.

[0011] The pressure inducing device includes a stepper motor, a transmission gear, a transmission rack and a thin film pressure sensor. There are two stepper motors, which are symmetrically arranged at the lower end of the shell and fixedly connected to the shell. The two stepper motors are located on the inner side of the protective shell. There are two transmission gears, which are respectively arranged at the output ends of the two stepper motors and fixedly connected to the output ends of the stepper motors. There are two transmission racks, which correspond to the two transmission gears, which are respectively arranged on the inner sides of the two protective shells and fixedly connected to the protective shells. The two transmission gears are respectively meshed with the two transmission racks. There are two thin film pressure sensors, which are respectively arranged at the lower ends of the two diagnostic probes.

[0012] The handle control assembly further includes a membrane switch, and the membrane switch is arranged outside the housing.

[0013] The host includes a main control development board, a host computer physician workstation, a refrigeration module, a control drive module, a temperature acquisition module, a scratch pressure acquisition module and a temperature and pressure display module. The main control development board is electrically connected to the host computer physician workstation, the refrigeration module, the control drive module, the temperature acquisition module, the scratch pressure acquisition module and the temperature and pressure display module. The main control development board and the temperature and pressure display module are connected by a serial bus. The control drive module is a ULN2003 chip, and the control drive module is electrically connected to the stepper motor.

[0014] It also includes a cold storage device, the refrigeration module is connected to the cold storage device, a micro air pump is provided on the cold storage device, the micro air pump is electrically connected to the main control development board, and the cold storage device is connected to the other end of the connecting hose.

[0015] The main control development board is electrically connected to the temperature sensor, the PTC heating plate, the flexible pressure sensor and the thin film pressure sensor.

[0016] The beneficial effects of the present invention are:

[0017] Simple structure and high integration level.

[0018] a. It is equipped with a scratch inducing device, which moves on the skin surface at a constant time, distance and pressure, and can accurately diagnose artificial urticaria;

[0019] b. It is equipped with a temperature induction device, which can accurately diagnose cold and heat urticaria by adjusting the constant time and temperature at the skin contact point;

[0020] c. It is equipped with a pressure inducing device, which can accurately diagnose delayed and pressure urticaria by applying constant pressure to the local skin for a constant period of time;

[0021] The present invention facilitates standardized diagnosis of inducible urticaria, and quantitatively integrates pressure, temperature, scratch and other inducing detections into one, forming an integrated multifunctional portable urticaria auxiliary diagnostic instrument with patients as the core and rapid diagnosis as the center, which is easy to use and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the handle control assembly of the present invention;

[0023] Figure 2 It is the overall structural diagram of the present invention;

[0024] Figure 3 It is the electrical connection diagram of the present invention;

[0025] Figure 4It is a work flow chart of the present invention.

[0026] In the figure: 1. handle control assembly; 2. shell; 3. temperature inducing device; 4. scratch inducing device; 5. pressure inducing device; 6. protective shell; 7. thermal insulation filler; 8. diagnostic probe; 9. temperature sensor; 10. copper tube cold storage device; 11. connecting hose; 12. PTC heating plate; 13. scratcher; 14. rubber pad; 15. scratch contact surface; 16. stepper motor; 17. transmission gear; 18. transmission rack; 19. film pressure sensor; 20. membrane switch. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] A portable urticaria auxiliary diagnostic instrument includes a host and a handle control component. The host is electrically connected to the handle control component. The handle control component includes a shell, a temperature inducing device, a scratch inducing device and a pressure inducing device. The temperature inducing device is located on both sides of the shell, the scratch inducing device is located on both sides of the shell, and the pressure inducing device is located inside the temperature inducing device. The schematic diagram of the handle control component structure of the present invention is as shown in FIG. Figure 1 shown.

[0029] It should be noted that the portable urticaria auxiliary diagnostic instrument of the present invention relies on the hospital information HIS management platform, and integrates multiple subsystem modules such as patient management, auxiliary diagnosis host, diagnostic handheld test handle, intelligent control, LAN data transmission, urticaria auxiliary diagnosis software and host computer physician workstation. One card provides patient information and past history of allergies, and provides an integrated interface for mobile phone signal APP and EMR, changing the previous discrete situation of multi-system and multi-window operations, integrating all techniques of various test functions into functions and interfaces, realizing the integrated high-level resource sharing of diagnostic management information and clinical medical information, and forming an integrated multifunctional portable urticaria auxiliary diagnostic instrument with patients as the core and rapid diagnosis as the center.

[0030] The temperature inducing device includes a protective shell, a refrigeration mechanism, a heating mechanism, an insulating filler and a diagnostic probe. There are two protective shells, which are symmetrically arranged inside the shell and slidably connected to the shell. The two protective shells are respectively provided with a refrigeration mechanism and a heating mechanism. The insulating filler is arranged between the protective shell and the refrigeration mechanism and the heating mechanism. There are two diagnostic probes, which are arranged at the lower ends of the two protective shells corresponding to the refrigeration mechanism and the heating mechanism respectively and are fixedly connected to the protective shells. Temperature sensors are arranged between the diagnostic probe and the refrigeration mechanism and the heating mechanism. The temperature inducing device cools on one side and generates heat on the other side, causing a temperature difference, thereby forming a cold and hot end. The temperature sensor is connected to the protective sleeve by a plug-in connector. When replacing, you only need to pull out the temperature sensor from the sleeve and replace it. The insulating filler can improve the refrigeration and heating effects of the refrigeration mechanism and the heating mechanism. It can accurately diagnose cold and heat urticaria by adjusting constant time and temperature at the skin contact point.

[0031] It should be noted that the temperature sensor uses a DS18B20 temperature sensor, which has a wide adaptability voltage range and can be powered by the data line in parasitic power mode. It does not require any peripheral components during use. All sensor elements and conversion circuits are integrated in an integrated circuit shaped like an ordinary triode.

[0032] The refrigeration mechanism includes a copper tube cold storage device and a connecting hose. The copper tube cold storage device is arranged inside a protective shell on one side and is fixedly connected to the protective shell. One end of the connecting hose is arranged at the upper end of the protective shell provided with the copper tube cold storage device and passes through the shell and the protective shell to communicate with the copper tube cold storage device. The copper tube cold storage device is connected to a corresponding diagnostic probe. The copper tube cold storage device is spiral-shaped, which can improve the effect of semiconductor refrigeration.

[0033] It should be noted that the connecting hose uses FITT medical air tube imported from Italy, made of PVC, with 3 layers of special hose inside and outside. It uses imported raw materials, advanced technology, reliable quality, high pressure, flame retardant, good weather resistance, working pressure greater than 20Kg, and is wrapped with 3mm thick insulation sponge on the outside. The hose connector uses SC-LZ06 medium-pressure gas hose connector, which meets the requirements of freezer connection and can be used as a direct connection between the cold storage device and the shell. The pressure range is: 0-6MPa.

[0034] The heating mechanism includes a PTC heating plate, which is arranged at the lower end of the inner part of the protective shell on the other side and fixedly connected to the protective shell. The PTC heating plate is connected to the corresponding diagnostic probe. If the temperature exceeds the set temperature range, the main control development board directly sends a signal through an interrupt to stop heating or cooling to keep the set temperature in a constant state.

[0035] The scratch inducing device includes a scratch device, a flexible pressure sensor and a rubber pad. There are two scratch devices, which are symmetrically arranged on both sides of the outside of the shell and fixedly connected to the shell. A scratch contact surface is arranged at the lower end of the scratch device, and the scratch contact surface is multi-toothed. There are two flexible pressure sensors, which are respectively arranged at the ends of the two scratch contact surfaces. There are two rubber pads, which correspond to the flexible pressure sensors and are arranged at the ends of the scratch contact surfaces and are fixedly connected to the scratch contact surfaces. The scratch device adopts a pressed integrated design to ensure that the gap of the scratch contact surface is as small as possible, thereby increasing the force stability of the flexible pressure sensor. The scratch tooth gap is evenly designed to further enhance the force stability. The setting of the rubber pad makes the scratch contact surface have a certain hardness and elasticity. When the scratch device contacts the body, the rubber pad will contact the flexible pressure sensor and produce a certain deformation, and the contact pressure can be transmitted to the sensitive area of ​​the flexible pressure sensor to increase the stability of the force surface. It moves on the skin surface through constant time, distance and pressure, and can accurately diagnose artificial urticaria.

[0036] It should be noted that the flexible pressure sensor uses the DF9-40 flexible pressure sensor, which has the advantages of strong overload and impact resistance, good anti-interference performance, and good low-frequency response. It can contact the skin well and detect tiny pressure signals. The DF9-40 sensor uses a highly integrated process to integrate the PVDF piezoelectric film, sensitivity temperature compensation element, temperature sensing element, and signal conditioning circuit into the sensor. The sensor sampling output voltage is 0.1V~0.6V.

[0037] The pressure inducing device includes a stepper motor, a transmission gear, a transmission rack and a thin film pressure sensor. There are two stepper motors, which are symmetrically arranged at the lower end of the shell and fixedly connected to the shell. The two stepper motors are both located on the inner side of a protective shell. There are two transmission gears, which are respectively arranged at the output ends of the two stepper motors and fixedly connected to the output ends of the stepper motors. There are two transmission racks, which correspond to the two transmission racks and are respectively arranged on the inner sides of the two protective shells and fixedly connected to the protective shells. The two transmission gears are respectively meshed with the two transmission racks. There are two thin film pressure sensors, which are respectively arranged at the lower ends of the two diagnostic probes. The pressure is precisely controlled by the operation of the stepper motor. Delayed and pressure urticaria can be accurately diagnosed by applying a constant pressure to the local skin within a constant time.

[0038] It should be noted that the stepper motor uses a 24BYJ48 reduction stepper motor, which is a reduction four-phase eight-beat stepper motor made of permanent magnet material with a rated voltage of DC5V-DC12V.

[0039] The handle control assembly also includes a membrane switch, which is arranged on the outside of the shell and can conveniently switch functions.

[0040] The host includes a main control development board, a host computer physician workstation, a refrigeration module, a control drive module, a temperature acquisition module, a scratch pressure acquisition module and a temperature and pressure display module. The main control development board is electrically connected to the host computer physician workstation, the refrigeration module, the control drive module, the temperature acquisition module, the scratch pressure acquisition module and the temperature and pressure display module. The main control development board and the temperature and pressure display module are connected by a serial bus, and the control drive module is electrically connected to the stepper motor. The quantitative data of various parameters that are measured and changed in real time are displayed in sequence on the OLED LCD screen. At the same time, the digital intuitive effect of the real-time pressure display ensures the stability and reliability of the urticaria measuring instrument used by doctors.

[0041] It should be noted that the serial bus uses I 2 C bus, the control drive module is ULN2003 chip, and the instruction sent by ATMega2560 to ULN2003 starts the operation of 24BYJ stepper motor. The main control development board adopts ArduinoATMage2560 main control development board, which has the characteristics of super anti-interference and anti-static, rich internal resources, high cost performance, can meet the requirements of the design of the present invention, reduce the external circuit design of the hardware circuit, and improve the circuit working efficiency. The periodic pulse sequence generated by the timer timing interrupt of the ATMage2560 main control development board sends control instructions through the I / O interface to conveniently control the orderly operation of multiple terminals

[0042] It also includes a cold storage device, the refrigeration module is connected to the cold storage device, a micro air pump is provided on the cold storage device, the micro air pump is electrically connected to the main control development board, the cold storage device is connected to the other end of the connecting hose, the host completes the collection, storage, buffering and transmission of the refrigeration function, and the gaseous working medium generated by it is quickly transmitted to the handle control component through the connecting hose according to the diagnosis needs. The overall structural block diagram of the present invention is as follows Figure 2 shown.

[0043] It should be noted that the refrigeration module uses semiconductor refrigeration, which has a small size and can be made into a volume of less than 1-5cm 3 The refrigerator has the advantages of environmental protection, light weight, no noise during operation, no liquid, and stable refrigeration. The micro air pump uses a 370 micro air pump with a rated voltage of 3-5V and a pressure range of 400-650mmhg.

[0044] The main control development board is electrically connected to the temperature sensor, PTC heating plate, flexible pressure sensor and thin film pressure sensor. The electrical connection diagram of the present invention is as shown in FIG. Figure 3 shown.

[0045] Working principle:

[0046] According to the biophysical information phenomenon of allergies in patients, quantitative pressure scratches are used or by heating close to the skin or cooling the skin, and pressure is gradually applied to find the allergens in the physical cause and the pressure contact with the human body produces allergic imprints. Once the human body finds an allergic attack through this imprint information, it can be induced or maintained. When the allergens caused by this physical means are encountered again and activated by the specific information again, the cause of urticaria can be found, thereby providing scientific methods and means for the treatment of this disease.

[0047] Working process:

[0048] The present invention integrates a scratch inducing device, a temperature inducing device and a pressure inducing device, and can induce and detect artificial urticaria, cold and heat urticaria, delayed urticaria and pressure urticaria. The detection process only takes a few tens of seconds to accurately and quickly detect whether the patient suffers from and what kind of inducible urticaria the patient suffers from. The detection process of the present invention is as follows:

[0049] For artificial urticaria: the physician holds the handle control component and moves the scratcher on the skin surface at a constant time, distance and pressure to observe the changes in the patient's skin and determine the patient's condition based on the changes;

[0050] For cold and heat urticaria: the physician holds the control component with a handheld handle, controls the operation of the cooling and heating mechanisms through the temperature sensor, generates cold or heat stress on the patient's skin through the diagnostic probe, adjusts the constant time and temperature through the skin contact point, observes the changes in the patient's skin, and determines the patient's condition based on the changes;

[0051] For delayed and pressure urticaria: the physician holds the handle control component and controls the operation of the pressure inducing device through the thin film pressure sensor. The stepper motor drives the transmission gear to rotate, the transmission gear drives the transmission rack to slide, the transmission rack drives the protective cover shell fixedly connected to it to slide in the shell, and then drives the diagnostic probe to move. The stepper motor can be used to control the movement of two diagnostic probes at the same time or only one of the diagnostic probes. By applying constant pressure to the local skin within a constant time, the changes in the patient's skin are observed, and the patient's condition is determined based on the changes. The workflow of the present invention is shown in the figure below. Figure 4 shown.

[0052] The beneficial effects of the present invention are simple structure and high integration level.

[0053] a. It is equipped with a scratch inducing device, which moves on the skin surface at a constant time, distance and pressure, and can accurately diagnose artificial urticaria;

[0054] b. It is equipped with a temperature induction device, which can accurately diagnose cold and heat urticaria by adjusting the constant time and temperature at the skin contact point;

[0055] c. It is equipped with a pressure inducing device, which can accurately diagnose delayed and pressure urticaria by applying constant pressure to the local skin for a constant period of time;

[0056] The present invention facilitates standardized diagnosis of inducible urticaria, and quantitatively integrates pressure, temperature, scratch and other inducing detections into one, forming an integrated multifunctional portable urticaria auxiliary diagnostic instrument with patients as the core and rapid diagnosis as the center, which is easy to use and easy to promote.

[0057] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A portable urticaria auxiliary diagnostic instrument, characterized in that: The invention comprises a host and a handle control component (1), wherein the host is electrically connected to the handle control component (1), wherein the handle control component (1) comprises a shell (2), a temperature inducing device (3), a scratch inducing device (4) and a pressure inducing device (5), wherein the temperature inducing device (3) is located on both sides of the inside of the shell (2), the scratch inducing device (4) is located on both sides of the outside of the shell (2), and the pressure inducing device (5) is located on the inside of the temperature inducing device (3); the temperature inducing device (3) comprises a protective shell (6), a refrigeration mechanism, a heating mechanism, a heat insulating filler (7) and a diagnostic probe (8), wherein there are two protective shells (6), wherein the two protective shells (6) are symmetrically arranged inside the shell (2) and are slidably connected to the shell (2), wherein the two protective shells (6) are respectively provided with a refrigeration mechanism and a heating mechanism, wherein the heat insulating filler (7) is arranged between the protective shell (6) and the refrigeration mechanism and the heating mechanism, and wherein the diagnostic probe (8) is provided with a heat insulating filler (7) and a heat insulating filler (7) ) are two, the two diagnostic probes (8) are respectively arranged at the lower ends of the two protective sleeves (6) corresponding to the cooling mechanism and the heating mechanism and are fixedly connected to the protective sleeves (6), and temperature sensors (9) are arranged between the diagnostic probes (8) and the cooling mechanism and the heating mechanism; the scratch inducing device (4) comprises a scratcher (13), a flexible pressure sensor and a rubber pad (14), the scratcher (13) being two, the two scratchers (13) being symmetrically arranged on both sides of the outside of the shell (2) and being fixedly connected to the shell (2), the scratcher (13) being provided with a scratch contact surface (15) at the lower end, the scratch contact surface (15) being multi-toothed, the flexible pressure sensors being two, the two flexible pressure sensors being respectively arranged at the ends of the two scratch contact surfaces (15), the rubber pads (14) being two, the two rubber pads (14) being arranged at the ends of the scratch contact surfaces (15) corresponding to the flexible pressure sensors and being fixedly connected to the scratch contact surfaces (15);The pressure inducing device (5) comprises a stepper motor (16), a transmission gear (17), a transmission rack (18) and a thin film pressure sensor (19). There are two stepper motors (16), which are symmetrically arranged at the lower end of the housing (2) and fixedly connected to the housing (2). The two stepper motors (16) are both located inside the protective casing (6). There are two transmission gears (17), which are respectively arranged at the output ends of the two stepper motors (16) and fixedly connected to the output ends of the stepper motors (16). There are two transmission racks (18), which correspond to the two transmission gears (17) and are respectively arranged inside the two protective casings (6) and fixedly connected to the protective casings (6). The two transmission gears (17) are respectively meshed with the two transmission racks (18). There are two thin film pressure sensors (19), which are respectively arranged at the lower ends of the two diagnostic probes (8).

2. A portable urticaria auxiliary diagnostic instrument as claimed in claim 1, characterized in that: The refrigeration mechanism comprises a copper tube cold accumulator (10) and a connecting hose (11); the copper tube cold accumulator (10) is arranged inside the protective shell (6) on one side and is fixedly connected to the protective shell (6); one end of the connecting hose (11) is arranged at the upper end of the protective shell (6) provided with the copper tube cold accumulator (10) and passes through the shell (2) and the protective shell (6) to communicate with the copper tube cold accumulator (10); the copper tube cold accumulator (10) is connected to the corresponding diagnostic probe (8).

3. A portable urticaria auxiliary diagnostic instrument as claimed in claim 1, characterized in that: The heating mechanism comprises a PTC heating plate (12), the PTC heating plate (12) being arranged at the lower end inside the protective shell (6) on the other side and fixedly connected to the protective shell (6), and the PTC heating plate (12) being connected to the corresponding diagnostic probe (8).

4. A portable urticaria auxiliary diagnostic instrument as claimed in claim 1, characterized in that: The handle control assembly (1) further comprises a membrane switch (20), wherein the membrane switch (20) is arranged outside the housing (2).

5. A portable urticaria auxiliary diagnostic instrument as claimed in claim 1, characterized in that: The host comprises a main control development board, a host computer physician workstation, a refrigeration module, a control drive module, a temperature acquisition module, a scratch pressure acquisition module and a temperature and pressure display module. The main control development board is electrically connected to the host computer physician workstation, the refrigeration module, the control drive module, the temperature acquisition module, the scratch pressure acquisition module and the temperature and pressure display module. The main control development board and the temperature and pressure display module are connected via a serial bus. The control drive module is a ULN2003 chip, and the control drive module is electrically connected to a stepper motor (16).

6. A portable urticaria auxiliary diagnostic instrument as claimed in claim 5, characterized in that: It also includes a cold storage device, the refrigeration module is connected to the cold storage device, a micro air pump is provided on the cold storage device, the micro air pump is electrically connected to the main control development board, and the cold storage device is connected to the other end of the connecting hose (11).

7. A portable urticaria auxiliary diagnostic instrument as claimed in claim 1, characterized in that: The main control development board is electrically connected to the temperature sensor (9), the PTC heating plate (12), the flexible pressure sensor and the thin film pressure sensor (19).

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