Insulin pump needle assisting device with rapid positioning function

Abstract

The invention relates to an insulin pump needle assisting device, in particular to an insulin pump needle assisting device capable of achieving rapid positioning. The needle assisting device comprises a needle assisting device body and a gasket, a middle air chamber and multiple sets of outer side air chambers are formed in the gasket, a micro air pump is fixedly connected to the upper portion of the gasket, a middle pressure sensor and multiple sets of outer side pressure sensors are fixedly connected to the lower portion of the gasket, and the needle assisting device body is provided with a shell; and an electric telescopic rod is fixedly connected in the shell. According to the invention, the thickness of the skin and fat at the infusion part is detected through the pressure sensor, the microcontroller adjusts the micro air pump and the pressure of the air chamber of the gasket according to the feedback of the sensor, so that the gasket can better fit the skin curvature at different parts, and the thickness of the gasket is adjusted by changing the pressure of the air chamber to determine the insertion depth; by means of the needle assisting device, a needle head can be rapidly and accurately inserted, the use comfort of a patient is improved, and meanwhile the adaptability and safety of the needle assisting device at different parts are enhanced.

Description

Technical Field

[0001] The invention relates to an insulin pump needle aid, in particular to a fast-positioning insulin pump needle aid. Background Art

[0002] The insulin pump is an advanced medical device designed for diabetic patients for continuous insulin infusion. Compared with traditional multiple daily injections, the insulin pump uses a small, portable pump device to deliver insulin to the patient's subcutaneous fat layer through an infusion line, achieving all-day insulin infusion. This continuous infusion method can more accurately simulate the human body's natural insulin secretion pattern, help better control blood sugar levels, reduce blood sugar fluctuations, and improve the patient's quality of life. The needle aid is an important component in the insulin pump system. Its main function is to safely and accurately insert the needle of the infusion line into the patient's subcutaneous fat layer.

[0003] Existing needle aids face multiple problems when inserting needles. First, inconsistent insertion depth is a common problem. Since the thickness of skin and fat varies in different parts and individuals, traditional needle aids cannot accurately adjust the insertion depth, resulting in too deep or too shallow insertion. Too deep insertion may cause pain, bleeding and tissue damage, while too shallow insertion may cause the needle or sensor to fall off.

[0004] Secondly, insulin injection requires frequent changes in the injection site. Existing needle aids have poor adaptability to different parts (such as the abdomen, thighs, and arms) and cannot fit the skin curvature of different parts well. The skin curvature and thickness of different parts vary greatly, and needle aids cannot adapt to these differences well, resulting in poor insertion accuracy and poor results. Summary of the invention

[0005] The purpose of the present invention is to provide a fast-positioning insulin pump needle aid to solve the problem in the prior art that the insulin pump needle aid cannot adapt well to the skin of different parts and cannot accurately adjust the insertion depth.

[0006] To achieve the above-mentioned purpose, a quick-positioning insulin pump needle aid is provided, comprising a needle aid body and a gasket, wherein a gasket is fixedly connected below the needle aid body, an intermediate air chamber and multiple groups of outer air chambers are opened inside the gasket, a micro air pump is fixedly connected above the intermediate air chamber and the multiple groups of outer air chambers, the micro air pump is connected to the air hole through a pipeline, an intermediate pressure sensor and multiple groups of outer pressure sensors are fixedly connected below the gasket, and the intermediate pressure sensor and the outer pressure sensors are arranged below the intermediate air chamber and the multiple groups of outer air chambers.

[0007] As a further improvement of the present technical solution, the needle assisting device body is provided with a shell, a battery and a circuit board are provided in the shell, a charging port is provided on the top of the shell, buttons are fixedly connected on both sides of the shell, and air holes are provided on the outside of the shell.

[0008] As a further improvement of the technical solution, an electric telescopic rod is fixedly connected inside the shell, a clamping block is fixedly connected below the electric telescopic rod, a locking groove, a card groove and an inner core groove are provided below the clamping block, and an unlocking device is provided in the locking groove.

[0009] As a further improvement of the present technical solution, a retention needle device is fixedly connected below the clamping block, the retention needle device is provided with a base plate, locking blocks are provided on both sides above the base plate, multiple groups of stable cards are provided above the base plate, and an inner core is provided in the middle above the base plate.

[0010] As a further improvement of the technical solution, an indwelling needle is fixedly connected inside the inner core, the locking block corresponds to the locking slot position, the card slot corresponds to the stable card position, and the inner core slot corresponds to the inner core position.

[0011] As a further improvement of the technical solution, the middle pressure sensor and the outer pressure sensor are electrically connected to the circuit board to detect the thickness of the skin and fat and feed the data back to the microcontroller on the circuit board.

[0012] As a further improvement of the technical solution, the micro air pump is electrically connected to the circuit board, and a microcontroller is provided on the circuit board for controlling the micro air pump to adjust the pressure of the middle air chamber and the outer air chamber.

[0013] As a further improvement of the present technical solution, the button is electrically connected to the circuit board and is used to start detecting skin curvature, hardness, thickness and fat thickness and to start the indwelling needle insertion operation.

[0014] As a further improvement of the technical solution, the electric telescopic rod is electrically connected to the circuit board, and a microcontroller is provided on the circuit board for controlling the electric telescopic rod to accurately control the insertion speed of the indwelling needle.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the rapid positioning insulin pump needle aid, the thickness of the skin and fat is detected by the middle pressure sensor and the outer pressure sensor. The micro air pump adjusts the pressure of the middle air chamber and the outer air chamber according to the feedback of the sensor, so that the gasket deforms to better fit the skin curvature of different parts, ensuring the smooth and accurate insertion process of the indwelling needle.

[0017] 2. In this fast-positioning insulin pump needle aid, the insertion depth of the needle is controlled by adjusting the height of the air cushion. The microcontroller calculates the appropriate air chamber pressure based on the detection results of the sensor, and adjusts the height of the air cushion through the micro air pump to ensure accurate insertion in different parts such as the abdomen, thighs and arms. In addition, the precise control of the air cushion height avoids insertion too deep or too shallow, thereby reducing the risk of pain, bleeding and tissue damage, and improving the accuracy and safety of insulin infusion.

[0018] 3. In this fast-positioning insulin pump needle aid, a battery and a circuit board are set in the shell of the needle aid. The microcontroller uniformly controls the actions of the micro air pump and the electric telescopic rod to achieve automated operation. The user only needs to press a button to complete the insertion and removal of the needle, which simplifies the operation process and improves the convenience and reliability of the operation. At the same time, there are two buttons. Pressing one button can detect the skin curvature, hardness and fat thickness through the pressure sensor. After fitting, pressing two buttons can realize the insertion of the indwelling needle to prevent accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the overall splitting of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the gasket cross section of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the clamping block of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the indwelling needle device of the present invention.

[0024] The meaning of each number in the figure is:

[0025] 1. Needle assist device body; 11. Shell; 12. Charging port; 13. Button; 14. Air hole; 15. Electric telescopic rod; 16. Card block; 161. Locking slot; 162. Card slot; 163. Inner core slot; 17. Indwelling needle device; 171. Locking block; 172. Stabilizing card; 173. Inner core; 174. Bottom plate; 175. Indwelling needle; 18. Micro air pump; 2. Gasket; 21. Middle air chamber; 22. Outer air chamber; 23. Middle pressure sensor; 24. Outer pressure sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] For the first embodiment, please refer to Figure 1 As shown, the purpose of this embodiment is to provide a quick positioning insulin pump needle aid, including a needle aid body 1 and a gasket 2. The gasket 2 is fixedly connected to the lower part of the needle aid body 1. The thickness of the gasket 2 is 2 mm. Figure 2 and Figure 3 As shown, a middle air chamber 21 and an outer air chamber 22 are provided inside the gasket 2. Micro air pumps 18 are fixedly connected above the middle air chamber 21 and the outer air chamber 22, and the micro air pumps 18 are connected to the air holes 14 through pipes (the air holes 14 correspond to the micro air pumps 18 provided on the housing 11 below), and a middle pressure sensor 23 and multiple groups of outer pressure sensors 24 are fixedly connected below the gasket 2, and these sensors are arranged below the middle air chamber 21 and the outer air chamber 22 to correspond thereto. The middle pressure sensor 23 and the outer pressure sensor 24 are used to detect the thickness of the skin and fat, and provide accurate feedback data to the microcontroller for controlling the action of the micro air pump 18. The micro air pump 18 adjusts the pressure of the middle air chamber 21 and the outer air chamber 22 according to the feedback from the sensors, so that the deformation of the gasket 2 can better fit the skin curvature of different parts.

[0030] When the needle assist device is placed on the skin, the middle pressure sensor 23 and the outer pressure sensor 24 will respectively measure the pressure distribution under the middle air chamber 21 and the outer air chamber 22. These pressure values ​​will be transmitted to the microcontroller for processing.

[0031] Assume that the pressure measured by the middle pressure sensor 23 is Pmid, and the pressure measured by the outer pressure sensor 24 is Pside.

[0032] The skin curvature can be estimated by analyzing the pressure distribution measured by the middle pressure sensor 23 and the outer pressure sensor 24. The skin curvature C is expressed by the following formula:

[0033] C = (Pside-Pmid) / L;

[0034] Here, L is the distance between the middle pressure sensor 23 and the outer pressure sensor 24 .

[0035] According to the calculated skin curvature C, the microcontroller will adjust the micro air pump 18, which is connected to the air hole 14 through a pipeline, and then adjust the pressure of the middle air chamber 21 and the outer air chamber 22 so that the air cushion can better fit the skin curvature.

[0036] The microcontroller gradually increases the pressure of the air chamber through the micro air pump 18, and records the pressure value of the air chamber and the corresponding skin deformation to calculate the skin hardness. The skin hardness Hskin can be expressed by the ratio of force per unit area to unit displacement:

[0037] Hskin = ΔP / Δd;

[0038] Among them, ΔP is the change in pressure and Δd is the corresponding deformation.

[0039] The formula obtained by fitting the experimental data is:

[0040] Hskin=(k′P) / d+c′;

[0041] Among them, k′ and c′ are constants obtained by fitting the experimental data.

[0042] After the air chamber pressure is adjusted, the readings Pmid_adjusted and Pside_adjusted of the middle pressure sensor 23 and the outer pressure sensor 24 are measured again, and the middle and outer skin and fat thicknesses are calculated using a linear model. The relationship between pressure and skin and fat thickness is expressed by a linear model, that is, T = aP + b, where T is the total thickness of skin and fat, P is the pressure measured by the pressure sensor, and a and b are constants obtained through experimental calibration. The specific calculation process is as follows:

[0043] Calculate the median thickness using a linear model:

[0044] Tmid=amidPmid_adjusted+bmid;

[0045] Among them, amid and bmid are constants obtained through experimental calibration.

[0046] Calculate the outside thickness using a linear model:

[0047] Tside=asidePside_adjusted+bside;

[0048] Among them, aside and bside are constants obtained through experimental calibration.

[0049] To obtain a more accurate skin and fat thickness, the average or weighted average of the medial and lateral thicknesses can be taken:

[0050] Tfinal=(2Tmid+Tside) / 3;

[0051] According to the calculated final thickness Tfinal, the microcontroller will adjust the micro air pump 18, which is connected to the air hole 14 through a pipeline, and then adjust the pressure of the middle air chamber 21 and the outer air chamber 22 so that the air cushion height reaches the target value.

[0052] Assuming that the electric telescopic rod drives the indwelling needle 175 to be inserted to a depth D at the original height of the gasket 2, the height H of the air cushion in the middle can be expressed as:

[0053] H = D - Tfinal;

[0054] The microcontroller adjusts the pressure of the air chamber as needed to make the thickness of the air chamber reach the target height H, ensuring that the indwelling needle 175 is accurately inserted into the subcutaneous fat layer.

[0055] As a preferred example, Figure 3 As shown, four outer air chambers 22 are provided. In fact, more air chambers can be provided according to specific usage conditions to improve accuracy, but corresponding micro air pumps 18 and pressure sensors also need to be added.

[0056] See also Figure 2As shown, the needle assist device body 1 is provided with a shell 11, and a battery and a circuit board are arranged in the shell 11. An air hole 14 is opened on the outside. The shell 11 protects the internal battery, circuit board and other electronic components, and provides structural support. The battery provides power for the needle assist device, and the circuit board is responsible for controlling the various electronic components of the needle assist device to ensure the normal operation of the needle assist device. A charging port 12 is opened on the top of the shell 11, which is convenient for the user to charge the battery through an external power supply to ensure the continuous use of the needle assist device. Buttons 13 are fixedly connected on both sides, and the user can control various functions of the needle assist device through these buttons 13, such as starting detection and insertion operations. An air hole 14 is opened on the outside, and the air hole 14 is connected to the micro air pump 18 through a pipe, and then connected to the air chamber to ensure the smooth flow of air.

[0057] See also Figure 2 As shown, the housing 11 is fixedly connected with an electric telescopic rod 15, which is used to accurately control the insertion speed of the indwelling needle 175, ensuring that the needle tip is inserted into the subcutaneous fat layer at an optimal speed to avoid the risk of pain, bleeding and tissue damage caused by inserting too fast or too slow. The microcontroller calculates the insertion speed v according to the skin hardness Hskin:

[0058] v = kHskin + c;

[0059] Among them, Hskin is the skin hardness, k and c are constants obtained by fitting the experimental data.

[0060] A clamping block 16 is fixedly connected to the lower part of the electric telescopic rod 15. Figure 4 and Figure 5 As shown, a locking slot 161, a card slot 162 and an inner core slot 163 are provided below the clamping block 16, and an unlocking device is provided in the locking slot 161. An indwelling needle device 17 is fixedly clamped below the clamping block 16, and a locking slot 161, a card slot 162 and an inner core slot 163 are provided below the clamping block 16. These slots correspond to the corresponding parts of the indwelling needle device 17 to ensure the firm connection of the indwelling needle device 17. An unlocking device is provided in the locking slot 161, and the user unlocks the indwelling needle device 17 after completing the insertion.

[0061] The retaining needle device 17 is fixedly connected to the lower part of the clamping block 16. The retaining needle device 17 is provided with a bottom plate 174. The locking blocks 171 are provided on both sides above the bottom plate 174. A plurality of stable cards 172 are provided above the bottom plate 174. An inner core 173 is provided in the middle. A retaining needle 175 is fixedly connected to the inner core 173. The locking block 171 corresponds to the locking slot 161, the card slot 162 corresponds to the stable card 172, and the inner core slot 163 corresponds to the inner core 173. The retaining needle device 17 provides the retaining needle 175 required for insertion and is fixed to the skin by the adhesive on the bottom plate 174. After the insertion is completed, it is convenient to connect the injection pipeline. The locking block 171 corresponds to the locking slot 161 to ensure that the retaining needle device 17 is firmly clamped to the clamping block 16. The stable card 172 corresponds to the card slot 162 to ensure the stability of the retaining needle device 17 during the insertion process. The inner core 173 corresponds to the inner core groove 163 to ensure the precise alignment of the indwelling needle 175 during the insertion process.

[0062] The button 13, the micro air pump 18, the unlocking device, the electric telescopic rod 15, the intermediate pressure sensor 23 and the outer pressure sensor 24 are electrically connected to the circuit board, respectively. A microcontroller is provided on the circuit board to control the action of the micro air pump 18 and the electric telescopic rod 15. The microcontroller controls the action of the micro air pump 18 and the electric telescopic rod 15 according to the detection results of the sensor to ensure the accuracy and safety of the needle assisting device. Specifically, the microcontroller controls the air chamber pressure of the gasket 2 by adjusting the micro air pump 18 according to the detection results of the intermediate pressure sensor 23 and the outer pressure sensor 24, so that the gasket 2 is deformed to adapt to the skin curvature of different parts. The height change of the gasket 2 determines the insertion depth of the indwelling needle 175, ensuring that the indwelling needle 175 is accurately inserted into the subcutaneous fat layer. After the insertion is completed, the microcontroller controls the unlocking device to unlock, and the needle assisting device can be removed.

[0063] In the second embodiment, align the locking block 171 on the bottom plate 174 of the indwelling needle device 17 with the locking slot 161 of the snap-in block 16, align the stabilizing card 172 with the card slot 162, align the inner core 173 with the inner core slot 163, and gently press the indwelling needle device 17 to make it firmly snap-in to the snap-in block 16. Tear off the release paper on the bottom plate 174 of the indwelling needle device 17 to expose the adhesive. The user presses a button 13, and the needle aid starts to detect the thickness of the skin and fat in the arm area. The test results show that the skin curvature of the arm area is 15° and the skin hardness is 20N / mm 2, the fat thickness is 5mm. The micro air pump 18 adjusts the pressure of the middle air chamber 21 and the outer air chamber 22 according to the feedback of the sensor, so that the gasket 2 can be deformed to better fit the skin curvature of the arm. Wherein, the pressure adjustment of the middle air chamber 21 is 9kPa, the pressure of the two outer air chambers 22 along the arm direction is 10kPa and 10kPa respectively, and the pressure of the two outer air chambers 22 on both sides is 11kPa and 11kPa respectively. At this time, the total height of the gasket 2 is 7mm. The user presses two buttons 13, and the electric telescopic rod 15 pushes the indwelling needle 175 to insert the skin, the insertion depth is 5mm, and the insertion speed is 0.7mm / s, ensuring that the needle is accurately inserted into the subcutaneous fat layer, avoiding insertion too deep or too shallow, and reducing the risk of pain, bleeding and tissue damage. After the insertion is completed, the input pipeline of the insulin pump is connected to the interface of the indwelling needle device 17 to ensure that the connection is tight and leak-free.

[0064] In the third embodiment, align the locking block 171 on the bottom plate 174 of the indwelling needle device 17 with the locking slot 161 of the snap-in block 16, align the stabilizing card 172 with the card slot 162, align the inner core 173 with the inner core slot 163, and gently press the indwelling needle device 17 to make it firmly snap-fit ​​onto the snap-in block 16. Tear off the release paper on the bottom plate 174 of the indwelling needle device 17 to expose the adhesive. The user presses a button 13, and the needle aid starts to detect the thickness of the skin and fat in the thigh area. The test results show that the skin curvature of the thigh area is 20° and the skin hardness is 25N / mm 2 , the fat thickness is 8mm. The micro air pump 18 adjusts the pressure of the middle air chamber 21 and the outer air chamber 22 according to the feedback of the sensor, so that the gasket 2 can be deformed to better fit the skin curvature of the thigh. Wherein, the pressure regulation of the middle air chamber 21 is 10kPa, the pressure of the two outer air chambers 22 along the thigh direction is 11kPa and 11kPa respectively, and the pressure of the two outer air chambers 22 on both sides is 12kPa and 12kPa respectively, and the total height of the gasket 2 is 10mm. The user presses two buttons 13, and the electric telescopic rod 15 pushes the indwelling needle 175 to insert the skin, the insertion depth is 8mm, and the insertion speed is 0.75mm / s, which ensures that the needle is accurately inserted into the subcutaneous fat layer, avoids inserting too deep or too shallow, and reduces the risk of pain, bleeding and tissue damage. After the insertion is completed, the input pipeline of the insulin pump is connected to the interface of the indwelling needle device 17 to ensure that the connection is tight and leak-free.

[0065] In the fourth embodiment, align the locking block 171 on the bottom plate 174 of the indwelling needle device 17 with the locking slot 161 of the connecting block 16, align the stabilizing card 172 with the card slot 162, align the inner core 173 with the inner core slot 163, and gently press the indwelling needle device 17 to make it firmly connected to the connecting block 16. Tear off the release paper on the bottom plate 174 of the indwelling needle device 17 to expose the adhesive. The user presses a button 13, and the needle aid starts to detect the thickness of the skin and fat in the abdominal area. The test results show that the skin curvature of the abdomen is 10° and the skin hardness is 15N / mm 2 , the fat thickness is 6mm. The micro air pump 18 adjusts the pressure of the middle air chamber 21 and the outer air chamber 22 according to the feedback of the sensor, so that the gasket 2 can be deformed to better fit the skin curvature of the abdomen. Wherein, the pressure regulation of the middle air chamber 21 is 6kPa, because the abdomen is relatively flat, and the pressures of the four outer air chambers 22 are 7kPa, 7kPa, 7kPa and 7kPa respectively, and the total height of the gasket 2 is 8mm at this time. The user presses two buttons 13, and the electric telescopic rod 15 pushes the indwelling needle 175 to insert the skin, the insertion depth is 6mm, and the insertion speed is 0.65mm / s, which ensures that the needle tip is accurately inserted into the subcutaneous fat layer, avoids inserting too deep or too shallow, and reduces the risk of pain, bleeding and tissue damage. After the insertion is completed, the input pipeline of the insulin pump is connected to the interface of the indwelling needle device 17 to ensure that the connection is tight and leak-free.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quick positioning insulin pump needle aid, characterized by: The invention comprises a needle-assisting device body (1) and a gasket (2), wherein the gasket (2) is fixedly connected to the lower part of the needle-assisting device body (1), an intermediate air chamber (21) and a plurality of groups of outer air chambers (22) are provided inside the gasket (2), a micro air pump (18) is fixedly connected above the intermediate air chamber (21) and the plurality of groups of outer air chambers (22), the micro air pump (18) is connected to the air hole (14) through a pipeline, an intermediate pressure sensor (23) and a plurality of groups of outer pressure sensors (24) are fixedly connected to the lower part of the gasket (2), and the intermediate pressure sensor (23) and the outer pressure sensor (24) are arranged below the intermediate air chamber (21) and the plurality of groups of outer air chambers (22).

2. The rapid positioning insulin pump needle aid according to claim 1, characterized in that: The needle assisting device body (1) is provided with a shell (11), a battery and a circuit board are arranged inside the shell (11), a charging port (12) is provided on the top of the shell (11), buttons (13) are fixedly connected to both sides of the shell (11), and an air hole (14) is provided on the outside of the shell (11).

3. The rapid positioning insulin pump needle aid according to claim 2, characterized in that: An electric telescopic rod (15) is fixedly connected inside the housing (11), a clamping block (16) is fixedly connected below the electric telescopic rod (15), and a clamping slot (161), a card slot (162) and an inner core slot (163) are provided below the clamping block (16).

4. The rapid positioning insulin pump needle aid according to claim 3, characterized in that: An indwelling needle device (17) is fixedly connected below the clamping block (16), and the indwelling needle device (17) is provided with a bottom plate (174). Locking blocks (171) are provided on both sides above the bottom plate (174), and multiple groups of stabilizing cards (172) are provided above the bottom plate (174). An inner core (173) is provided in the middle above the bottom plate (174).

5. The rapid positioning insulin pump needle aid according to claim 4, characterized in that: The inner core (173) is fixedly connected with an indwelling needle (175), the locking block (171) corresponds to the locking slot (161), the card slot (162) corresponds to the stabilizing card (172), and the inner core slot (163) corresponds to the inner core (173).

6. The rapid positioning insulin pump needle aid according to claim 2, characterized in that: The middle pressure sensor (23) and the outer pressure sensor (24) are electrically connected to the circuit board and are used to detect the thickness of the skin and fat and feed the data back to the microcontroller on the circuit board.

7. The rapid positioning insulin pump needle aid according to claim 2, characterized in that: The micro air pump (18) is electrically connected to the circuit board, and a microcontroller is provided on the circuit board for controlling the micro air pump (18) to adjust the pressure of the middle air chamber (21) and the outer air chamber (22).

8. The rapid positioning insulin pump needle aid according to claim 2, characterized in that: The button (13) is electrically connected to the circuit board.

9. The rapid positioning insulin pump needle aid according to claim 3, characterized in that: The electric telescopic rod (15) is electrically connected to the circuit board, and a microcontroller is provided on the circuit board for controlling the insertion speed of the electric telescopic rod (15) to drive the indwelling needle (175).

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