Intelligent titration infusion sensing device and titration infusion device

Through the intelligent titration infusion sensing device, the blood circulation degree is monitored in real time and the radial cross-sectional area of the dropper is dynamically adjusted, which solves the problem of uncontrollable patient comfort during the infusion process, and achieves the matching of infusion speed and patient comfort, improving the comfort during the infusion process.

CN223143885UActive Publication Date: 2025-07-25SHENZHEN COMEN MEDICAL INSTR
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Patent Information

Application Number
CN202421483035.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-07-25
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

The existing infusion alarms cannot control the infusion speed according to the patient's comfort level, resulting in the infusion level being unable to be effectively monitored and adjusted during the infusion process.

Method used

The intelligent titration infusion sensing device is used to monitor the patient's blood circulation degree in real time through a blood flow sensor, and adjust the radial cross-sectional area of the dropper using the control circuit board and contraction assembly, and dynamically adjust the infusion speed to match the patient's comfort status.

Benefits of technology

During the infusion process, it is possible to adjust the infusion speed in real time according to the patient's blood circulation degree, improve the patient's comfort, and optimize the infusion process without extending the infusion time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an intelligent titration infusion sensing device and a titration infusion device. The sensing device comprises a contraction assembly and a control module, the contraction assembly is provided with an assembly space, the dropper penetrates through the assembly space, and the contraction assembly can stretch out and draw back in the radial direction parallel to the dropper to change the size of the assembly space in the radial direction of the dropper so as to change the radial cross-sectional area of the dropper; the control module comprises a blood flow sensor and a control circuit board; the blood flow sensor is used for sensing the human body blood circulation degree in real time; the blood flow sensor and the contraction assembly are electrically connected to the control circuit board, and the control circuit board is used for receiving the human body blood circulation degree and controlling the stretching degree of the contraction assembly based on a first comparison result of the human body blood circulation degree and a first threshold value. During infusion, according to the blood circulation degree of a patient, the infusion speed is adjusted through the contraction assembly, the blood circulation degree of the human body is changed, and the comfort degree of the patient is improved while it is guaranteed that the infusion time is not too long.
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Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an intelligent titration infusion induction device and a titration infusion device. Background Art

[0002] At present, some infusion alarms on the market use photoelectric non-contact detection of medicine drops, that is, photoelectric devices are installed at the bottom of the bottle or at the dropper buffer bottle. When there is no liquid in the bottle, the photoelectric device will send out an alarm signal, which can prompt medical staff that the infusion has ended. This kind of infusion alarm can play a reminder role after the infusion ends. However, during the infusion process, the infusion speed cannot be controlled according to the comfort of the patient. Content of the Utility Model

[0003] The technical object of the utility model is to provide an intelligent titration infusion induction device and a titration infusion device, aiming to solve the technical problem that the infusion alarm in the related technology has no monitoring or prompting process during the infusion process and is no different from the conventional infusion process.

[0004] To solve the above technical problem, the utility model is realized as follows. An intelligent titration infusion induction device is applied to a titration infusion device. The induction device includes a contraction component and a control module. The contraction component has an assembly space, and the dropper passes through the assembly space. The contraction component can expand and contract along a direction parallel to the radial direction of the dropper to change the size of the assembly space in the radial direction of the dropper and change the radial cross-sectional area of the dropper. The control module includes a blood flow sensor and a control circuit board. The blood flow sensor is used to sense the degree of human blood circulation in real time. Both the blood flow sensor and the contraction component are electrically connected to the control circuit board, and the control circuit board is used to receive the degree of human blood circulation and control the expansion and contraction degree of the contraction component based on a first comparison result between the degree of human blood circulation and a first threshold.

[0005] Further, the contraction component includes a first housing and a first connecting member. The first connecting member includes a fixed end, a connecting end, and a main body portion. The main body portion is connected between the fixed end and the connecting end. The fixed end and the connecting end are connected to the outside of the first housing so that the first connecting member and the first housing enclose to form the assembly space. A connecting position is provided at the connection between the first housing and the connecting end. The connecting position extends along a direction parallel to the radial direction of the dropper, and the connecting end is slidably connected to the connecting position.

[0006] Further, the contraction assembly includes an electromagnetic structure, and the first housing has a receiving cavity; the electromagnetic structure is fixedly received in the receiving cavity and electrically connected to the control module, and the control module controls the magnetic induction intensity of the electromagnetic structure according to the degree of human blood circulation; the connection end can be magnetically connected to the electromagnetic structure to provide a force for moving the connection end in a direction close to the electromagnetic structure.

[0007] Further, the electromagnetic structure includes an electromagnet and a coil. The electromagnet is fixedly assembled in the receiving cavity, the coil is arranged on the periphery of the electromagnet, and the electromagnet is electrically connected to the control module.

[0008] Further, the contraction assembly further includes an elastic member. One end of the elastic member abuts against the connection end and the other end abuts against the first housing to provide a restoring force for moving the connection end in a direction away from the electromagnetic structure.

[0009] Further, the control module includes a second housing, and both the control circuit board and the blood flow sensor are fixedly assembled in the second housing; the control module further includes a second connecting member arranged on the second housing, and the control module is fixedly assembled on the human body through the second connecting member.

[0010] Further, the second connecting member includes a wristband having a magic tape and connected to the second housing, and the control module is worn on the human wrist through the wristband.

[0011] Further, the control module includes a blood flow sensor and a control circuit board; both the control circuit board and the blood flow sensor are fixedly assembled in the second housing; the blood flow sensor is exposed outside the second housing and faces the human skin for real-time sensing of the degree of human blood circulation; both the blood flow sensor and the contraction assembly are electrically connected to the control circuit board, and the control circuit board is used to receive the degree of human blood circulation and control the telescopic degree of the contraction assembly based on a first comparison result between the degree of human blood circulation and a first threshold.

[0012] Further, the control module further includes an infrared detection device and an alarm system fixedly assembled in the second housing; the infrared detection device is exposed outside the second housing and faces the dropper for detecting the amount of liquid flowing through the dropper; the infrared detection device is electrically connected to the control circuit board, and the control circuit board is used to receive the amount of liquid, calculate the duration of a second comparison result based on a second comparison result between the amount of liquid and a second threshold, and control the alarm system to give a prompt alarm based on a third comparison result between the duration and a third threshold.

[0013] Further, a titration infusion device, characterized in that it comprises a drip tube and the intelligent titration infusion induction device as described above, and the contraction assembly is sleeved outside the drip tube.

[0014] The intelligent titration infusion induction device and the titration infusion device in the present utility model, compared with the related art, have the beneficial effects that:

[0015] In the present utility model, the drip tube is passed through the assembly space, the control circuit board receives the degree of human blood circulation flowing sensed by the blood flow sensor in real time, and at the same time compares the degree of human blood circulation flowing with the first threshold, and then controls the telescopic degree of the contraction assembly along the radial direction parallel to the drip tube according to the first comparison result, changes the size of the assembly space in the radial direction of the drip tube, thereby can change the radial cross-sectional area of the drip tube, change the resistance of the pipeline, and thus change the infusion speed. During the infusion process, the present utility model can adjust the infusion speed in real time according to the current blood circulation degree of the patient, thereby can change the blood flow rate and flow volume, and change the current blood circulation degree of the human body in real time, so that the current blood circulation degree of the human body changes to the blood circulation degree of the human body in a comfortable state, while ensuring that the infusion time will not be too long, improving the comfort level of the patient, and making the patient always maintain the most comfortable state during the whole infusion process. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0017] Figure 1 is a schematic structural diagram of the titration infusion device in the embodiment of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the contraction member in the embodiment of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the control module in the embodiment of the present utility model.

[0020] In the drawings, each reference numeral represents:

[0021] 10. Drip tube; 1. Contraction assembly; 11. First housing; 111. Connection position; 12. First connecting member; 121. Assembly space; 122. Connection end; 13. Electromagnet; 14. Coil; 15. Elastic member; 2. Control module; 21. Second connecting member; 22. Blood flow sensor; 23. Display panel. Detailed Embodiments

[0022] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0023] In the description of the present utility model, 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", "axial", "circumferential", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0025] Please refer to Figures 1 - 3 , an embodiment of the present utility model provides a titration infusion device, including a drip tube 10 and an intelligent titration infusion sensing device. Among them, the sensing device includes a contraction assembly 1 and a control module 2; the contraction assembly 1 has an assembly space 121, the drip tube 10 passes through the assembly space 121, and the contraction assembly 1 can expand and contract along the radial direction parallel to the drip tube 10 to change the size of the assembly space 121 in the radial direction of the drip tube 10, so as to change the radial cross-sectional area of the drip tube 10; the control module 2 includes a blood flow sensor 22 and a control circuit board; the blood flow sensor 22 is used to sense the degree of blood circulation in the human body in real time; both the blood flow sensor 22 and the contraction assembly 1 are electrically connected to the control circuit board, and the control circuit board is used to receive the degree of blood circulation in the human body and control the expansion and contraction degree of the contraction assembly 1 based on the first comparison result between the degree of blood circulation in the human body and a first threshold.

[0026] Generally, when a patient is receiving infusion through a titration infusion device, the blood flow rate and volume of the patient will be different from those in the normal situation (when not receiving infusion). As the infusion progresses, the degree of blood circulation in the patient will vary at different time periods, resulting in different levels of comfort for the patient. Especially when the infusion speed is extremely fast, the discomfort of the patient will increase. That is, both the infusion time and the infusion speed will affect the patient's comfort level. For example, in the middle and late stages of infusion, the patient's hand will swell. Therefore, it is understandable that during the infusion process, the speed should not be too fast, otherwise the patient will be in an extremely uncomfortable state, nor should it be too slow, otherwise it will prolong the infusion time, which may consume the time of both doctors and patients and also occupy the usage time of medical resources.

[0027] In the embodiment of the present utility model, the dropper 10 is disposed through the assembly space 121. The control circuit board receives the degree of blood circulation in the human body sensed by the blood flow sensor 22 in real time, and at the same time compares the degree of blood circulation in the human body with the first threshold, and then controls the telescopic degree of the contraction assembly 1 along the radial direction parallel to the dropper 10 according to the first comparison result, so as to change the size of the assembly space 121 in the radial direction of the dropper 10, thereby changing the radial cross-sectional area of the dropper 10 and the resistance of the pipeline, and thus changing the infusion speed. During the infusion process, the embodiment of the present utility model can adjust the infusion speed in real time according to the current degree of blood circulation of the patient, so as to change the blood flow rate and volume, and change the current degree of blood circulation in the human body in real time, so that the current degree of blood circulation in the human body is changed to the degree of blood circulation in a comfortable state, while ensuring that the infusion time will not be too long, and improving the comfort level of the patient, so that the patient always maintains the most comfortable state during the entire infusion process.

[0028] It should be noted that when infusing, the degree of blood circulation when the human body is comfortable and the entire infusion time is appropriate is the first threshold. The first threshold can be obtained through big data statistics and is applicable to most patients, but in actual applications, there may be differences among some patients. The control module 2 can be provided with an adjustment function. When the patient is receiving an intravenous drip, the medical staff can manually adjust the first threshold by asking the patient about their comfort level to adapt to this part of the patients.

[0029] It should be noted that the first comparison result can be to increase the infusion rate or decrease the infusion rate. The degree of blood circulation in the human body can depend on blood flow velocity and flow rate. The blood flow sensor 22 is used to detect the blood flow velocity and flow rate of the human body. In practical applications, at the initial stage of infusion, there is an initial infusion rate, which can be set by medical staff. As the infusion progresses, the degree of blood circulation in the human body will be different from the first threshold. Generally, in the initial infusion stage, the blood flow velocity of the human body is greater than the first threshold. Therefore, the control module 2 can control to decrease the infusion rate. Due to the decrease in the infusion rate, as the infusion continues, the blood flow velocity of the human body will gradually slow down. When the blood flow velocity of the human body is less than the first threshold, at this time, the control module 2 controls to increase the infusion rate. The utility model can dynamically and automatically adjust the infusion rate according to the real-time degree of blood circulation in the human body, so as to ensure both the infusion time and the comfort of the patient.

[0030] In addition, Figure 2 in, the direction parallel to the X-axis represents the radial direction of the drip tube 10.

[0031] Further, the contraction assembly 1 includes a first housing 11 and a first connecting member 12. The first connecting member 12 includes a fixed end, a connecting end 122, and a main body portion. The main body portion is connected between the fixed end and the connecting end 122. The fixed end and the connecting end 122 are connected to the outside of the first housing 11, so that the first connecting member 12 and the first housing 11 enclose an assembly space 121; a connection position 111 is provided at the connection between the first housing 11 and the connecting end 122. The connection position 111 extends along the radial direction parallel to the drip tube 10, and the connecting end 122 is slidably connected to the connection position 111.

[0032] Specifically, the opening of the connection position 111 is on the surface of the first housing 11. Along the radial direction parallel to the drip tube 10, the connection position 111 extends into the first housing 11. Exemplarily, the connection position 111 is a groove opened on the surface of the first housing 11. The groove opens outward and extends inward into the housing, and the extending direction is parallel to the radial direction of the drip tube 10. The first connecting member 12 bends and extends outward from a position outside the first housing 11 to the connection position 111 outside the first housing 11. In the first connecting member 12, the fixed end is fixedly connected to the outside of the first housing 11, and the connecting end 122 is connected to the connection position 111 of the first housing 11. The first housing 11, the fixed end, the main body portion, and the connecting end 122 together enclose the assembly space 121, and the connecting end 122 can move in the connection position 111. The connection position 111 extends along the radial direction parallel to the drip tube 10. By changing the connection depth of the connecting end 122 in the connection position 111, the size of the assembly space 121 can be changed, thereby changing the radial cross-sectional area of the drip tube 10, and further changing the infusion rate.

[0033] When the connecting end 122 gradually penetrates into the connecting position 111, it is equivalent to the contraction member gradually contracting, the assembly space 121 gradually becoming smaller, the drip tube 10 being gradually compressed and flattened, and at this time the infusion speed gradually slows down. When the connecting end 122 gradually moves to near the opening of the connecting position 111, it is equivalent to the contraction member gradually stretching, the assembly space 121 gradually becoming larger, the drip tube 10 gradually expanding, and the infusion speed gradually increasing.

[0034] Furthermore, the contraction assembly 1 includes an electromagnetic structure. The first housing 11 has a receiving cavity; the electromagnetic structure is fixedly received in the receiving cavity and electrically connected to the control module 2. The control module 2 can control the magnetic induction intensity of the electromagnetic structure according to the degree of blood circulation in the human body; the connecting end 122 can be magnetically connected to the electromagnetic structure to provide a force for moving the connecting end 122 in the direction close to the electromagnetic structure.

[0035] Specifically, the connecting end 122 connected to the connecting position 111 is spaced from the electromagnetic structure located in the receiving cavity. An iron core is provided inside the connecting end 122 or the first connecting member 12, and the electromagnetic structure and the connecting end 122 can be magnetically connected. The control module 2 can control the magnetic induction intensity of the electromagnetic structure according to the degree of blood circulation in the human body. When it is necessary to slow down the infusion speed, the control module 2 can increase the magnetic induction intensity of the electromagnetic structure. When the magnetic induction intensity of the electromagnetic structure gradually increases, the magnetic attraction force of the electromagnetic structure acting on the connecting end 122 gradually increases, so that the connecting end 122 gradually moves in the direction close to the electromagnetic structure, that is, the connecting end 122 gradually moves into the receiving cavity (inside the first housing 11), that is, the connecting end 122 gradually penetrates into the connecting position 111, and the drip tube 10 is gradually flattened, finally realizing the slowdown of the infusion speed.

[0036] Furthermore, the electromagnetic structure includes an electromagnet 13 and a coil 14. The electromagnet 13 is fixedly assembled in the receiving cavity, and the coil 14 is arranged on the periphery of the electromagnet 13. The electromagnet 13 is electrically connected to the control module 2.

[0037] Specifically, the control module 2 energizes the electromagnet 13, so that the coil 14 on the periphery of the electromagnet 13 generates a magnetic field. The control module 2 can change the magnitude of the magnetic field strength generated by the coil 14 by changing the magnitude of the current, and further can change the magnitude of the force of the electromagnetic structure on the connecting end 122. Specifically, the larger the current, the stronger the magnetic field strength, and the stronger the force of the electromagnetic structure on the connecting end 122. Conversely, the weaker the force.

[0038] Furthermore, the contraction assembly 1 further includes an elastic member 15. One end of the elastic member 15 abuts against the connecting end 122 and the other end abuts against the first housing 11 to provide a restoring force for moving the connecting end 122 in the direction away from the electromagnetic structure.

[0039] Specifically, in some embodiments, the elastic member 15 can be assembled at the connection position 111. The connection position 111 can be a groove. One end of the elastic member 15 abuts against the connection end 122 and the other end abuts against the bottom of the groove. When it is necessary to increase the infusion rate, the control module 2 can weaken the magnetic induction intensity of the electromagnetic structure. When the magnetic induction intensity of the electromagnetic structure gradually weakens, the magnetic suction force exerted by the electromagnetic structure on the connection end 122 gradually decreases. When the magnetic suction force of the electromagnetic structure on the connection end 122 is less than the elastic force of the elastic member 15 on the connection end 122, the elastic member 15 pushes the connection end 122 to gradually move away from the electromagnetic structure, that is, the connection end 122 gradually moves outward of the first housing 11, that is, the connection end 122 gradually moves near the connection opening, and the drip tube 10 gradually expands, finally realizing an increase in the infusion rate.

[0040] It can be understood that both the first housing 11 and the elastic member 15 are made of materials that do not affect the magnetic suction force between the electromagnetic structure and the connection end 122. Exemplarily, the first housing 11 can be made of a non-metallic material, and the elastic member 15 can be a structural member with a reset function, such as a spring, a spring piece, an elastic silicone member, or other forms of elastic structural members.

[0041] Furthermore, the control circuit board can also compare the degree of blood circulation in the human body with a third threshold. When the infusion is over and the blood flow rate and velocity in the human body return to the flow rate and velocity under normal conditions (when not infusing), at this time, the control circuit board can, according to the third comparison result, cut off the power supply of the electromagnet 13, the magnetic field inside the electromagnet 13 disappears, the connection end 122 and the electromagnetic structure are no longer magnetically connected, and the connection end 122 is automatically reset under the action of the reset force of the elastic member 15. The connection end 122 is connected at the opening of the connection position 111, which is convenient for the user to take out.

[0042] It can be understood that the blood flow rate and flow volume of the patient during infusion are different from those under normal conditions. Therefore, during the infusion process, the third comparison result will not show that the current human blood flow rate, velocity and the human blood flow rate, velocity under normal conditions are the same. This result will only occur when the infusion is over.

[0043] Furthermore, the control module 2 includes a second housing. The control circuit board and the blood flow sensor 22 are both fixedly assembled in the second housing; the control module 2 further includes a second connecting member 21 provided on the second housing. The control module 2 is fixedly assembled to the human body through the second connecting member 21.

[0044] Specifically, in some embodiments, the second connector 21 includes a wristband with Velcro that is connected to the second housing. The control module 2 is worn on the human wrist through the wristband, which is convenient and quick for assembly and disassembly. In other embodiments, the control module 2 can be assembled on the human wrist by snap connection. Exemplarily, the two free ends of the second connector 21 are a snap and a protrusion respectively, and the protrusion and the snap are snap-connected.

[0045] Furthermore, both the control circuit board and the blood flow sensor 22 are fixedly assembled in the second housing. Exemplarily, the blood flow sensor 22 is exposed outside the second housing and faces the human skin. It can detect the blood flow velocity and flow rate of the human body in real time through infrared detection, so as to realize that the blood flow sensor 22 senses the blood circulation degree of the patient in real time and feeds it back to the control circuit board in real time.

[0046] Furthermore, the control module 2 further includes an infrared detection device and an alarm system fixedly assembled in the second housing; the infrared detection device is exposed outside the second housing and faces the drip tube 10 for detecting the amount of liquid flowing through the drip tube 10; the infrared detection device is electrically connected to the control circuit board, and the control circuit board is used to receive the liquid amount, calculate the duration of the second comparison result based on the second comparison result obtained from the liquid amount and the second threshold, and control the alarm system to give a prompt alarm based on the third comparison result between the duration and the third threshold.

[0047] Specifically, the infrared detection device is mainly used to detect whether there is liquid dripping from the drip tube 10. When the second comparison result shows no liquid amount, the control module 2 starts timing. When the third comparison result shows that the time reaches 1 minute, it means that there is no liquid dripping for more than 1 minute, then it is considered that the infusion is completed. The control module 2 transmits the signal corresponding to the completion of the infusion to the alarm system, and the alarm system gives a prompt alarm, so as to prompt the patient and medical staff, saving the time of both parties and the use time of medical resources.

[0048] Furthermore, the control module 2 further includes a display panel 23. The display panel 23 is used to display the blood circulation degree of the human body, and the display panel 23 can also be used to display the result of the completion of the infusion. The display panel 23 can also have operation controls for medical staff to perform manual operations, such as manually changing the first threshold.

[0049] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0050] The above is the description of the technical solution provided by the present invention. For those skilled in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An intelligent titration infusion sensing device is applied to a titration infusion device. The titration infusion device includes a dropper, and is characterized in that, The induction device includes a contraction component and a control module; The contraction component has an assembly space, the dropper is disposed through the assembly space, and the contraction component can expand and contract along a direction parallel to the radial direction of the dropper to change the size of the assembly space in the radial direction of the dropper, so as to change the radial cross-sectional area of the dropper; The control module includes a blood flow sensor and a control circuit board; The blood flow sensor is used to sense the degree of blood circulation in the human body in real time; Both the blood flow sensor and the contraction component are electrically connected to the control circuit board, and the control circuit board is used to receive the degree of blood circulation in the human body and control the expansion and contraction degree of the contraction component based on a first comparison result between the degree of blood circulation in the human body and a first threshold.

2. The intelligent titration infusion induction device according to claim 1, wherein The contraction component includes a first housing and a first connecting member, The first connecting member includes a fixed end, a connecting end, and a main body portion. The main body portion is connected between the fixed end and the connecting end, and the fixed end and the connecting end are connected to the outside of the first housing, so that the first connecting member and the first housing enclose to form the assembly space; A connection position is provided at the connection end where the first housing is connected, and the connection position extends along a direction parallel to the radial direction of the dropper, and the connecting end is slidably connected to the connection position.

3. The intelligent titration infusion induction device according to claim 2, wherein The contraction component includes an electromagnetic structure, and the first housing has a receiving cavity; The electromagnetic structure is fixedly received in the receiving cavity and electrically connected to the control module, and the control module controls the magnetic induction intensity of the electromagnetic structure according to the degree of blood circulation in the human body; The connecting end can be magnetically attracted to the electromagnetic structure to provide a force for moving the connecting end in a direction close to the electromagnetic structure.

4. The intelligent titration infusion sensing device according to claim 3, wherein The electromagnetic structure includes an electromagnet and a coil. The electromagnet is fixedly assembled in the receiving cavity, the coil is disposed on the periphery of the electromagnet, and the electromagnet is electrically connected to the control module.

5. The intelligent titration infusion sensing device according to claim 2, characterized in that, The contraction component further includes an elastic member. One end of the elastic member abuts against the connecting end and the other end abuts against the first housing to provide a restoring force for moving the connecting end in a direction away from the electromagnetic structure.

6. The intelligent titration infusion induction device according to claim 1, wherein, The control module includes a second housing, and both the control circuit board and the blood flow sensor are fixedly assembled in the second housing; the control module further includes a second connecting member disposed on the second housing, and the control module is fixedly assembled to the human body through the second connecting member.

7. The intelligent titration infusion induction device according to claim 6, wherein The second connecting member includes a wristband having a magic tape and connected to the second housing, and the control module is worn on the human wrist through the wristband.

8. The intelligent titration infusion sensing device according to claim 6, wherein The control module further includes an infrared detection device and an alarm system fixedly assembled to the second housing; The infrared detection device is exposed outside the second housing and faces the dropper to be used for detecting the amount of liquid flowing through the dropper; The infrared detection device is electrically connected to the control circuit board, and the control circuit board is configured to receive the liquid volume, calculate the duration of the second comparison result based on the second comparison result obtained from the liquid volume and the second threshold value, and control the alarm system to give a prompt alarm based on the third comparison result between the duration and the third threshold value.

9. A titration infusion device, characterized in that, It includes a dropper and the intelligent titration infusion induction device according to any one of claims 1-8, and the contraction assembly is sleeved outside the dropper.