Multifunctional vein infusion apparatus

Abstract

A bottle stopper puncture outfit is arranged at the upper end of an infusion tube, an injection needle is installed at the lower end of the infusion tube, a Murphy's dropper is arranged on the infusion tube close to an air filter, a medicine adding tube is arranged at the upper end of the Murphy's dropper, and a fluid director is arranged in the Murphy's dropper. The fluid director comprises a fluid director body and a membrane flap which are connected with each other, the periphery of the fluid director body is hermetically connected with the inner wall of the Murphy dropper, a fluid guide port is formed in the middle of the fluid director body, the membrane flap is provided with a narrowed channel below the fluid director body, and the channel is communicated with the fluid guide port to form a fluid guide channel; the diversion channel is opened when liquid flows into the upper part, and is sealed and closed when no liquid flows into the upper part; when the liquid level is lower than a preset value, the upper part and the lower part are isolated through the flap seal, blood return is avoided, and the buzzer sounds to remind medical staff; a filter membrane is arranged on the pipeline to purify the liquid medicine; the external infusion tube is arranged on the pipeline, so that quick medicine injection and color distinguishing are facilitated, quick medical care identification is facilitated, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a multifunctional intravenous infusion set. Background Technology

[0002] Infusion sets, used in clinical settings, deliver medications or fluids to patients at appropriate rates. They are widely used in hospitals, emergency centers, and home care, playing a crucial role in the medical process. In clinical practice, intravenous infusion sets are extensively used in clinical treatments and for surgical patients, making them an essential medical supply.

[0003] Chinese patent document (publication number: CN210301886U) discloses an intravenous infusion set. This utility model relates to an intravenous infusion set, including a drug delivery interface. The drug delivery interface includes a drug delivery seat, a cover, a guide, and a resilient sealing plug. The drug delivery seat has a drug through-hole to inject liquid medication into the liquid flow channel of the intravenous infusion set. The cover and the drug delivery seat are connected to each other to confine the sealing plug and the guide within the installation space formed by the cover and the drug delivery seat. The guide is closer to the cover than the sealing plug and has a guide hole to guide the drug delivery needle to puncture the sealing plug. This utility model can facilitate the administration of medication by medical personnel and reduce the risk of injury to medical personnel when administering medication.

[0004] In existing technologies, when the fluid level in the infusion tubing is below a threshold, it cannot form a self-locking mechanism, which may cause backflow of blood or the entry of air, endangering the patient's health; the infusion tubing does not have a purification function for the medication; and there is no rapid identification function on the external tubing, resulting in low efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multifunctional intravenous infusion set. When the infusion level in the tubing falls below a threshold, the membrane flaps automatically seal on both sides, isolating the upper and lower channels to form a self-locking state, preventing backflow of blood. Simultaneously, a buzzer is triggered to alert medical staff. A filter membrane is installed in the infusion tubing to purify the injected medication. An external infusion tubing is also included for rapid medication administration. Color-coded medications facilitate quick identification by medical staff, improving work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multifunctional intravenous infusion set includes an infusion tubing with a stopper puncture device at its upper end and an air filter near the stopper. An injection needle is installed at the lower end of the infusion tubing, and a Mofe's drip chamber is located near the air filter. A medication delivery tube is located at the upper end of the Mofe's drip chamber, and a flow guide is located inside the Mofe's drip chamber. The flow guide includes a flow guide body and a flap connected to each other. The outer periphery of the flow guide body is sealed to the inner wall of the Mofe's drip chamber. A flow port is located in the middle of the flow guide body. The flap has a narrowed channel below the flow guide body, which communicates with the flow port to form a flow channel. The flow channel opens when liquid flows in from above and closes when no liquid flows in from above.

[0008] As a preferred technical solution of this utility model, a non-contact liquid level sensor is fixedly installed on the outer periphery of the Mofe's dropper, and the non-contact liquid level sensor is located on the upper part of the flow guide; the non-contact liquid level sensor is electrically connected to a buzzer;

[0009] As a preferred technical solution of this utility model, the non-contact liquid level sensor is a separate photoelectric liquid level sensor or a capacitive liquid level sensor.

[0010] As a preferred embodiment of this utility model, the flow guide is located at the lower 1 / 4 of the inside of the Mofe's dropper;

[0011] As a preferred technical solution of this utility model, the infusion tube includes a first infusion tube and a second infusion tube, and the first infusion tube and the second infusion tube are connected by a Mofe's drip tube;

[0012] As a preferred technical solution of this utility model, a filter membrane is provided on the second infusion tube;

[0013] As a preferred technical solution of this utility model, an external infusion tube is provided on the second infusion tube;

[0014] As a preferred technical solution of this utility model, a flow rate regulator is provided on the second infusion tube;

[0015] As a preferred technical solution of this utility model, there are four external infusion tubes, and the four external infusion tubes are color-coded in red, yellow, blue and green respectively.

[0016] As a preferred technical solution of this utility model, the filter membrane is a polytetrafluoroethylene microporous filter membrane.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this utility model, when the liquid in the infusion bottle gradually decreases and the liquid level is lower than the preset value, the non-contact liquid level sensor triggers the buzzer to sound, reminding medical staff. At this time, when the hydraulic pressure generated by the liquid in the drip tube is less than the threshold that the membrane can withstand, the two sides of the membrane tightly fit and seal, isolating the convection between the upper and lower channels, preventing the liquid from flowing down, preventing backflow of blood in the infusion tube, and preventing air from entering the patient's body, thus avoiding harm to the patient.

[0019] 2. In this utility model, a filter membrane is installed on the infusion line to filter dust, carbon black, rubber shavings, glass fragments, and drug crystals in the drug solution, effectively intercepting harmful particles in the infusion liquid and purifying the drug solution injected into the human body.

[0020] 3. This utility model has four external infusion lines installed on the infusion line, with four colors of color: red, yellow, blue, and green, corresponding to high-risk drugs A, B, and C, and ordinary drugs, respectively. During intravenous infusion, when the drug is pumped in, it is convenient to inject the drug solution quickly, distinguish the types of drugs by color, and quickly identify the drugs in the line by color, thereby improving efficiency and reducing the possibility of introducing air bubbles into the line. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the flow guide of this utility model;

[0023] In the diagram: bottle stopper puncturist-10; air filter-11; first infusion tubing-12; Mofe's dropper-13; dosing tubing-14; flow guide-15; non-contact liquid level sensor-16; buzzer-17; second infusion tubing-18; flow rate regulator-19; filter membrane-20; external infusion tubing-21; injection needle-22; flow guide body-23; membrane flap-24. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

[0025] Contents not described in detail in this specification are existing technologies known to those skilled in the art. In the description of this utility model, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, terms such as "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Figure 1 and Figure 2 As shown, a multifunctional intravenous infusion set includes an infusion tubing. A stopper puncturer 10 is located at the upper end of the infusion tubing. An air filter 11 is located near the stopper puncturer 10 on the infusion tubing. An injection needle 22 is installed at the lower end of the infusion tubing. A Mofe's dropper 13 is located near the air filter 11 on the infusion tubing. A drug delivery tube 14 is located at the upper end of the Mofe's dropper 13. A flow guide 15 is located inside the Mofe's dropper 13. The flow guide 15 includes a flow guide body 23 and a flap 24 connected to each other. The outer periphery of the flow guide body 23 is sealed to the inner wall of the Mofe's dropper 13. A fluid inlet is located in the middle of the flow guide body 23. The flap 24 has a narrowed channel below the flow guide body 23, which communicates with the fluid inlet to form a flow guide channel. The flow guide channel opens when liquid flows in from above and closes when no liquid flows in from above.

[0027] Under normal conditions, the two sides of the diaphragm flap 24 are in contact with each other and are in a sealed state. When the hydraulic pressure above reaches the threshold that the diaphragm flap 24 can withstand, the channel inside the diaphragm flap 24 opens and the liquid flows out from the top to the bottom. When the hydraulic pressure is less than the threshold that the diaphragm flap 24 can withstand, the two sides of the diaphragm flap 24 are tightly sealed to prevent convection between the upper and lower channels.

[0028] In this invention, when the medication in the infusion bottle gradually decreases and the level falls below a preset value, the non-contact level sensor 16 triggers the buzzer 17 to sound, alerting medical staff. At this time, when the hydraulic pressure generated by the medication in the drip tube 13 is less than the threshold that the diaphragm 24 can withstand, the two sides of the diaphragm 24 tightly seal, isolating the convection between the upper and lower channels, preventing the medication from flowing downwards, and awaiting intervention from medical staff; during this period, there will be no backflow of blood in the infusion tube, and no air will enter the patient's body, avoiding harm to the patient.

[0029] This invention utilizes a one-way valve inside the Mofe-type drip chamber to control the liquid level and close the valve when it reaches a certain point, preventing blood backflow. Simultaneously, a buzzer sensor attached to the outside of the drip chamber triggers an alarm, alerting medical staff for timely intervention. An external infusion line on the second infusion line connects to an infusion pump, allowing for quick identification of the infused medication level based on the color of the external infusion line. A filter membrane on the second infusion line filters out harmful particles from the liquid, purifying the injected medication. These devices not only solve the problem of blood backflow and provide timely alerts to medical staff, but also facilitate medication administration in clinical settings. It is highly practical, easy to implement, improves the work efficiency of clinical medical staff, and enhances the safety of infusions.

[0030] Furthermore, a non-contact liquid level sensor 16 is fixedly installed on the outer periphery of the Mofe dropper 13, and the non-contact liquid level sensor 16 is located on the upper part of the flow guide 15; the non-contact liquid level sensor 16 is connected to a buzzer 17.

[0031] In this invention, a non-contact liquid level sensor 16 is installed on the upper part of the flow guide 15. When the non-contact liquid level sensor 16 detects that the liquid level has dropped to the threshold, it emits a sound through the buzzer 17 to remind medical staff.

[0032] The connection, power supply, and control configuration of the non-contact liquid level sensor 16 and the buzzer 17 are existing technologies and commercially available, and will not be described in detail here.

[0033] Furthermore, the non-contact liquid level sensor 16 is a separate photoelectric liquid level sensor or a capacitive liquid level sensor.

[0034] Photoelectric liquid level sensors operate on the principle of light reflection and refraction at the interface of two different media. The sensor contains a near-infrared light-emitting diode (LED) and a photosensitive receiver. When there is no liquid, the light emitted by the LED is directly reflected back to the receiver through a lens; however, when liquid submerges the lens, the light is refracted into the liquid, resulting in the receiver receiving little or no light. By detecting changes in light intensity, the liquid level can be determined.

[0035] Capacitive level sensors operate based on the concept of capacitance, detecting the liquid level by measuring the relationship between capacitance and liquid level. The sensor typically consists of two electrodes (a sensing electrode and a reference electrode), with the space between them forming the sensor's measurement area. When liquid enters the measurement area, the liquid's dielectric constant changes the dielectric constant between the electrodes, causing a change in capacitance. The sensor's internal conversion circuitry then converts this change in capacitance into a measurable signal (such as a voltage signal or a digital signal), thus enabling the detection of the liquid level.

[0036] Furthermore, the flow guide 15 is located at the lower 1 / 4 of the interior of the Moffield dropper 13.

[0037] The flow guide 15 is positioned at the lower 1 / 4 of the inside of the Mofe's dropper, providing sufficient space for observation and allowing for timely sealing when the liquid is insufficient.

[0038] Furthermore, the infusion tubing includes a first infusion tubing 12 and a second infusion tubing 18, which are connected by a Mofee drip tube 13.

[0039] The Mofi drip chamber ensures a uniform drip rate, relieves vasospasm, increases patient confidence, displays the drip rate and first expiratory gas, and allows for emergency medication addition. It plays a significant role in intravenous infusion.

[0040] Furthermore, a flow rate regulator 19 is provided on the second infusion tube 18.

[0041] Adjust the infusion rate according to the different medications used, or adjust the infusion rate according to the different patient signs.

[0042] Furthermore, the second infusion tube 18 is provided with an external infusion tube 21, and there are four external infusion tubes 21, which are color-coded in red, yellow, blue and green respectively.

[0043] Intravenous infusion of medications via pump requires the addition of a three-way valve to the infusion line, which is cumbersome and may introduce air bubbles.

[0044] This invention features four external infusion lines on the infusion line, with color-coded red, yellow, blue, and green lines corresponding to high-risk drugs A, B, and C, and ordinary drugs, respectively. During intravenous infusion, the drug is pumped in, facilitating rapid drug delivery. The colors distinguish the types of drugs, allowing for quick identification of the drugs in the tubing, improving efficiency, and reducing the possibility of air bubbles being introduced into the tubing.

[0045] Furthermore, a filter membrane 20 is provided on the second infusion tube 18; the filter membrane 20 is a polytetrafluoroethylene microporous filter membrane.

[0046] The filter membrane 20 is a cellulose microporous filter membrane, a polyamide microporous filter membrane, a polycarbonate microporous filter membrane, or a polytetrafluoroethylene microporous filter membrane; preferably a polytetrafluoroethylene microporous filter membrane.

[0047] The filter membrane 20 can filter dust, carbon black, rubber shavings, glass fragments, and drug crystals from the drug solution, effectively intercepting harmful particles in the infusion fluid and purifying the drug solution injected into the human body.

[0048] This utility model is illustrated through the above embodiments, but it is not limited to these embodiments, meaning that it does not necessarily depend on them for implementation. Those skilled in the art should understand that all related improvements to this utility model fall within its protection and disclosure scope.

Claims

1. A multifunctional intravenous infusion set, comprising an infusion tubing, characterized in that, The upper end of the infusion tubing is equipped with a stopper puncturer (10), and an air filter (11) is provided on the infusion tubing near the stopper puncturer (10). An injection needle (22) is installed at the lower end of the infusion tubing, and a Mofe's dropper (13) is provided on the infusion tubing near the air filter (11). A drug delivery tube (14) is opened at the upper end of the Mofe's dropper (13), and a flow guide (15) is provided inside the Mofe's dropper (13). The device includes a flow guide body (23) and a membrane flap (24) connected to each other. The outer periphery of the flow guide body (23) is sealed to the inner wall of the Mofe's dropper (13). The flow guide body (23) has a liquid guide port in the middle. The membrane flap (24) has a narrowed channel below the flow guide body (23). The channel is connected to the liquid guide port to form a flow guide channel. The flow guide channel is opened when liquid flows in from above and sealed closed when no liquid flows in from above.

2. The multifunctional intravenous infusion set according to claim 1, characterized in that, A non-contact liquid level sensor (16) is fixedly installed on the outer periphery of the Mofe dropper (13), and the non-contact liquid level sensor (16) is located on the upper part of the flow guide (15); the non-contact liquid level sensor (16) is electrically connected to a buzzer (17).

3. The multifunctional intravenous infusion set according to claim 2, characterized in that, The non-contact liquid level sensor (16) is a separate photoelectric liquid level sensor or a capacitive liquid level sensor.

4. The multifunctional intravenous infusion set according to claim 1, characterized in that, The flow guide (15) is located at the lower 1 / 4 of the inside of the Mofe dropper (13).

5. The multifunctional intravenous infusion set according to claim 1, characterized in that, The infusion tubing includes a first infusion tubing (12) and a second infusion tubing (18), which are connected by a Mofee dropper (13).

6. The multifunctional intravenous infusion set according to claim 5, characterized in that, A filter membrane (20) is provided on the second infusion tube (18).

7. The multifunctional intravenous infusion set according to claim 5, characterized in that, An external infusion tube (21) is provided on the second infusion tube (18).

8. The multifunctional intravenous infusion set according to claim 5, characterized in that, A flow rate regulator (19) is provided on the second infusion tube (18).

9. The multifunctional intravenous infusion set according to claim 7, characterized in that, There are four external infusion tubes (21), and the four external infusion tubes are color-coded in red, yellow, blue and green respectively.

10. The multifunctional intravenous infusion set according to claim 6, characterized in that, The filter membrane (20) is a polytetrafluoroethylene microporous filter membrane.

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