Infusion device

Abstract

The invention discloses an infusion device which comprises a back condensation cover, a curved pipe and an air release valve. An atomizer is arranged in the recondensation cover, a top end liquid adding hole and a bottom end outlet are formed in the recondensation cover, and the top end liquid adding hole is directly communicated with a liquid inlet port of the atomizer; one end of the curved tube is connected with a bottom end outlet of the back-coagulation cover, and the other end of the curved tube is connected with an inlet of the air escape valve of which an outlet is connected with the infusion needle through the infusion tube; according to the invention, a plurality of photoelectric sensors are matched to accurately monitor the dripping speed of liquid drops and the length of a liquid column, and the control system is combined to intelligently adjust the atomizer, the condenser and the electric switch, so that the high-precision control of the infusion speed is realized. Risks caused by too fast or too slow infusion can be effectively avoided, and the safety and effectiveness of infusion treatment are improved; by means of the atomization technology and atomization recondensation operation, infusion liquid is subjected to deep purification treatment, and tiny particle impurities are removed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to an infusion device. BACKGROUND

[0002] In the medical field, infusion is a common treatment method for supplementing body fluids, providing drugs or nutrients. Existing infusion devices mainly include infusion pumps, bolus pumps and traditional infusion sets. These devices play an important role in clinical application, but there are also some problems to be solved.

[0003] Long-term extrusion of infusion set pipes by infusion pumps can cause material fatigue and wear, affecting infusion accuracy. The total amount of infusion by bolus pumps is small, and the infusion liquid cannot be filtered and purified, increasing the risk of total impurity input. The traditional infusion set cannot control the infusion accuracy, and the filtering and purifying effect of impurities is limited. In addition, the drug itself may carry insoluble particles, especially during drug production and crystallization. The infusion set material (such as plastic or rubber) may shed small particles when punctured or extruded. Glass debris generated when cutting glass ampoules may mix into the drug solution. During the dispensing operation, dust and fibers in the environment may enter the drug solution. Long-term infusion or drug degradation may cause impurities due to drug decomposition.

[0004] The "Study on the Compatibility of Traditional Chinese Medicine Injection and Infusion Set" found that some traditional Chinese medicine injections dissolved plasticizers and formed composite particles after contacting with PVC infusion pipes. According to statistics from a certain third-grade hospital in Beijing, the incidence of infusion reactions decreased from 0.5% to 0.1% after using precision filtration infusion sets.

[0005] The existing infusion devices have obvious deficiencies in infusion accuracy control and impurity purification, and lack effective real-time monitoring means. Therefore, it is of great significance to develop an infusion device that can accurately control infusion accuracy and effectively purify impurities for improving infusion safety and patient treatment effect. SUMMARY

[0006] The purpose of the present application is to provide an infusion device to solve the problems raised in the background.

[0007] To achieve the above purpose, the present application provides the following solutions:

[0008] An infusion device, comprising a condensation cover, a curved pipe and a gas release valve;

[0009] The inside of the condensation cover is provided with an atomizer, and a top liquid adding hole and a bottom outlet are formed on the condensation cover, and the top liquid adding hole directly communicates with the liquid inlet port of the atomizer;

[0010] One end of the curved pipe is connected to the bottom end outlet of the condensation cover, and the other end of the curved pipe is connected to the inlet of the air release valve, and the outlet of the air release valve is connected to the infusion needle through the infusion pipe.

[0011] Further, the condensation cover is provided with a condenser.

[0012] Further, a heater is further arranged between the curved pipe and the air release valve.

[0013] The curved pipe is connected to the inlet of the heater, and the outlet of the heater is connected to the inlet of the air release valve through the infusion pipe.

[0014] Further, a control system is further included, and the atomizer and the condenser are connected to the control system.

[0015] Further, a first photoelectric sensor is arranged on the heater, and the first photoelectric sensor is connected to the control system.

[0016] Further, a second photoelectric sensor is arranged on the infusion pipe between the heater and the air release valve, and the second photoelectric sensor is connected to the control system.

[0017] Further, a third photoelectric sensor is arranged on the air release valve, and the third photoelectric sensor is connected to the control system.

[0018] Further, an electric switch is arranged on the infusion pipe between the air release valve and the infusion needle, and the electric switch is connected to the control system.

[0019] Further, the infusion pipe between the heater and the air release valve has a back-bend.

[0020] According to the above technical solution, compared with the prior art, the beneficial effects of the present application are as follows:

[0021] 1. By using multiple photoelectric sensors to accurately monitor the drop speed and the length of the liquid column, and combining the intelligent adjustment of the control system on the atomizer, the condenser and the electric switch, the high-precision control of the infusion speed is realized. The risks caused by too fast or too slow infusion can be effectively avoided, and the safety and effectiveness of infusion therapy can be improved.

[0022] 2. By using atomization technology and atomization condensation operation, the infusion liquid is deeply purified to remove small particle impurities and reduce adverse reactions caused by impurities entering the human body, thereby improving the safety of infusion. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0024] Figure 1 The figure is a structural schematic diagram of the infusion device in the embodiments of the present application.

[0025] Explanation of reference signs:

[0026] 1, condensation cover; 2, atomizer; 3, liquid adding hole; 4, curved pipe; 5, air release valve; 6, condenser; 7, heater; 8, control system; 9, first photoelectric sensor; 10, second photoelectric sensor; 11, third photoelectric sensor; 12, electric switch. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application will be further described in detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] The terms "first", "second" are only used for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0030] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In order to better understand the purpose, structure and function of the present application, the present application is further described in detail below in conjunction with the drawings.

[0032] Embodiment

[0033] Referring to Figure 1 The infusion device provided by the embodiment includes a condensation cover 1, a curved tube 4 and a gas release valve 5.

[0034] The condensation cover 1 is internally provided with an atomizer 2, and the condensation cover 1 is provided with a top liquid adding hole 3 and a bottom outlet.

[0035] One end of the curved tube 4 is connected to the bottom outlet of the condensation cover 1, and the other end of the curved tube 4 is connected to the inlet of the gas release valve 5, and the outlet of the gas release valve 5 is connected to an infusion needle (not shown in the drawing, which can be selected according to actual needs) through an infusion tube.

[0036] Specifically, the liquid adding hole 3 facilitates the addition of liquid medicine according to actual conditions, and can release the pressure in the condensation cover 1 to facilitate the outflow of liquid, that is, the liquid adding hole 3 can be opened and closed for adjustment when needed, thereby effectively adjusting the size of the air inlet hole to achieve the purpose of adjusting the drop speed.

[0037] The atomizer 2 mainly atomizes the liquid, and the main function is to purify the impurities in the liquid to be delivered through the atomization process; and finally purifies the infusion liquid.

[0038] The atomizer 2 of the embodiment can be an ultrasonic atomizer 2.

[0039] The inner diameter of the pipeline of the curved tube 4 is relatively small, which can collect the liquid collected in the condensation cover 1 into a liquid column and drop at the end of the pipeline.

[0040] The condensation cover 1 is mainly used to collect the atomized gas mist into liquid droplets, and the condensation cover 1 is of an upper and lower split structure and can be disassembled to facilitate the installation of the atomizer 2.

[0041] The gas release valve 5 can discharge the air between the liquid columns to avoid the air being delivered to the human body, and at the same time, the liquid is accumulated to ensure that the pipeline is not empty, and finally the liquid is delivered into the human body in cooperation with the infusion needle.

[0042] The technical solution of the embodiment is further optimized, and a condenser 6 is arranged outside the condensation cover 1, and specifically, the condenser 6 can accelerate the condensation of the atomized gas mist into liquid droplets, and at the same time, the condensation cover 1 is used for collection.

[0043] The technical solution of the embodiment is further optimized, and a heater 7 is arranged between the curved tube 4 and the gas release valve 5.

[0044] The curved tube 4 is connected to the inlet of the heater 7, the outlet of the heater 7 is connected to the inlet of the air release valve 5 through the infusion tube, and the infusion tube between the heater 7 and the air release valve 5 has a backfolding bend.

[0045] Specifically, the heater 7 can heat the condensed liquid and can adjust the temperature at any time according to the nature of the medicine, so as to realize comfortable infusion without affecting the nature of the medicine.

[0046] Further optimization of the technical scheme of the embodiment can also include a control system 8, the atomizer 2 and the condenser 6 are connected to the control system 8, the heater 7 is provided with a first photoelectric sensor 9, the first photoelectric sensor 9 is connected to the control system 8, the infusion tube between the heater 7 and the air release valve 5 is provided with a second photoelectric sensor 10, the second photoelectric sensor 10 is connected to the control system 8, the air release valve 5 is provided with a third photoelectric sensor 11, the third photoelectric sensor 11 is connected to the control system 8, and the infusion tube between the air release valve 5 and the infusion needle is provided with an electric switch 12, and the electric switch 12 is connected to the control system 8.

[0047] It should be noted that the control system 8 can be a PLC control system 8 and the like, as long as the technical effects required by the embodiment can be achieved.

[0048] Specifically, the first photoelectric sensor 9 is mainly used to monitor the liquid dropped from the curved tube 4, and preliminarily monitor the dropping speed, and the logic of the control system 8 is as follows:

[0049] (1) If the monitoring dropping speed is too fast, the control system 8 is fed back to the atomizer 2 and the condenser 6 to reduce the atomization amount and reduce the condensation space (reduce the condensation effect), so that the whole condensation cover 1 can reduce the liquid drop formation;

[0050] (2) If the monitoring dropping speed is too slow, the control system 8 is fed back to the atomizer 2 and the condenser 6 to increase the atomization amount and increase the condensation space (increase the condensation effect), so that the whole condensation cover 1 can increase the liquid drop formation;

[0051] (3) When the above adjustment cannot effectively control the dropping speed, the control system 8 can also be used to adjust the opening and closing of the liquid inlet hole 3 (or directly adjust the liquid inlet hole 3 without passing through the control system 8), so as to effectively adjust the size of the "air inlet hole" and achieve the purpose of adjusting the dropping speed.

[0052] And the second photoelectric sensor 10 is mainly used to monitor the liquid column, monitor the beginning and end electric signals of the liquid column, and feed back to the control system 8 in time, and the logic of the control system 8 is as follows:

[0053] (1) If the liquid column (columnar liquid flowing in the infusion tube between the heater 7 and the air release valve 5) is continuously uninterrupted, it indicates that the liquid drop speed is too fast, causing liquid to accumulate in the heater 7, and the signal is fed back to the control system 8, first closing the liquid inlet hole 3 to stop the liquid drop, and then adjusting the liquid inlet hole 3 after the liquid column is disconnected, to ensure that the drop speed monitored by the first photoelectric sensor 9 meets the requirements, and at this time, the second photoelectric sensor 10 can effectively calculate the length of the liquid column.

[0054] (2) If the liquid column is very short and disconnected, it indicates that the liquid drop speed is too slow and the liquid drop is very small, causing the liquid drop to scatter in the heater 7, and the signal is fed back to the control system 8, which is adjusted according to the slow drop speed.

[0055] Therefore, the first photoelectric sensor 9 cooperates with the second photoelectric sensor 10 to achieve precise control of the drop speed, and the specific logic is as follows:

[0056] The second photoelectric sensor 10 monitors the length of the liquid column as L mm, the passing time of the liquid column as T ms, and the diameter of the liquid column (i.e. the inner diameter of the infusion tube between the heater 7 and the air release valve 5) is known as D mm, and the final infusion speed V is:

[0057]

[0058] The third photoelectric sensor 11 mainly monitors the height of the liquid surface in the air release valve 5, and if it is lower than the preset minimum limit, it will alarm and remind, and feed back the signal to the control system 8, and the logic of the control system 8 is as follows:

[0059] If the third photoelectric sensor 11 monitors that the liquid surface is lower than the preset minimum limit, it feeds back to the control system 8 to first close the electric switch 12, and when the liquid surface is higher than the preset minimum limit, it feeds back to the control system 8 to reopen the electric switch 12. The electric switch 12 mainly cuts off the infusion tube between the air release valve 5 and the infusion needle after the third photoelectric sensor 11 alarms and feeds back to the control system 8, so that they are no longer connected, to avoid air input into the human body.

[0060] In this paper, specific examples are used to illustrate the principles and implementation methods of the present application. The above examples are only used to help understand the method and core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation and application range will be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An infusion device, characterized by The condensing cover, the curved pipe and the air release valve are included. An atomizer is arranged in the condensing cover, a top liquid adding hole and a bottom outlet are arranged on the condensing cover, and the top liquid adding hole is directly communicated with a liquid inlet port of the atomizer. One end of the curved pipe is connected with the bottom outlet of the condensing cover, the other end of the curved pipe is connected with an inlet of the air release valve, and an outlet of the air release valve is connected with a liquid injection needle through a liquid injection pipe.

2. The infusion device of claim 1, wherein A condenser is arranged on the condensing cover.

3. The infusion device of claim 2, wherein A heater is arranged between the curved pipe and the air release valve. The curved pipe is connected with an inlet of the heater, and an outlet of the heater is connected with the inlet of the air release valve through the liquid injection pipe.

4. The infusion device of claim 3, wherein A control system is further included, and the atomizer and the condenser are connected with the control system.

5. The infusion device of claim 4, wherein the housing is configured to be worn on the body of the user. A first photoelectric sensor is arranged on the heater, and the first photoelectric sensor is connected with the control system.

6. The infusion device of claim 4, wherein the housing is configured to be worn on the body of the user. A second photoelectric sensor is arranged on the liquid injection pipe between the heater and the air release valve, and the second photoelectric sensor is connected with the control system.

7. The infusion device of claim 4, wherein the housing is configured to be worn on the body of the user. A third photoelectric sensor is arranged on the air release valve, and the third photoelectric sensor is connected with the control system.

8. The infusion device of claim 4, wherein An electric switch is arranged on the liquid injection pipe between the air release valve and the liquid injection needle, and the electric switch is connected with the control system.

9. The infusion device of claim 2, wherein The liquid injection pipe between the heater and the air release valve has a backfolding bend.

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