Three-way connector and mixed infusion apparatus

Abstract

The invention relates to a three-way connector and a mixed infusion apparatus, belongs to the technical field of medical instruments, and solves the technical problem that medicine components cannot be uniformly distributed and released in a body due to layering of liquid medicine during infusion of an existing multi-way connector. The three-way joint comprises a main liquid inlet passage, a branch liquid inlet passage, a mixing chamber, a liquid outlet passage and a mixing device; the mixed infusion apparatus comprises an infusion tube, a first puncture outfit, a second puncture outfit and a three-way connector. The mixing impeller directly mixes infusion liquid, when the infusion liquid flows to the mixing impeller, the mixing impeller is stressed to rotate on the rotating bushing, and the mixing impeller generates stirring force through the rotating action, so that the infusion liquid with different densities is fully mixed in the mixing chamber, the layering state between the liquid is broken, and the layered liquid is uniformly distributed; the liquid medicine is uniformly mixed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a three-way connector and a hybrid infusion set. Background Art

[0002] In the clinical medical practice system, intravenous infusion, as a core technical means for treating critically ill patients, carrying out emergency medical interventions, and implementing long-term drug therapies, occupies a crucial position. Especially for patients with complex diseases, the treatment process often involves the simultaneous infusion requirements of multiple drugs such as antibiotics, vasoactive drugs, nutritional support preparations, and blood products. In the past, traditional intravenous infusion regimens generally relied on the establishment of multiple independent venous accesses. This method not only subjects patients to repeated puncture pain but also brings potential risks of vascular trauma, increased infection, and complications such as thrombosis. In addition, in the time-critical first-aid scenario, the time-consuming setup of multiple venous accesses can be a key factor hindering efficient rescue. To effectively reduce unnecessary puncture times, the current medical technology field has introduced the innovative solution of multi-way connectors. Such connectors are commonly of two-way or three-way structures. By establishing a venous access through a single puncture, parallel infusion of multiple liquids can be achieved, significantly optimizing the clinical infusion process.

[0003] When using a multi-way connector for infusion, there are differences in the drug solution densities between different infused liquids. After different infused liquids converge, stratification and precipitation may occur. Due to the stratification of the drug solution, the concentrations of the effective drug components in each layer of the drug solution are different. This makes it impossible for the drug dose to enter the patient's body in the expected accurate proportion and quantity during the infusion process. After the stratified and precipitated drug solution enters the body, the drug components cannot be evenly distributed and released, resulting in fluctuations in the blood drug concentration in the body and an inability to maintain a stable state, thereby leading to unstable drug efficacy. Summary of the Invention

[0004] In view of the above analysis, the present invention aims to provide a three-way connector and a hybrid infusion set to solve the technical problem that drug components cannot be evenly distributed and released in the body due to drug solution stratification during infusion with existing multi-way connectors.

[0005] The object of the present invention is mainly achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a three-way connector, including a main liquid inlet passage, a branch liquid inlet passage, a mixing chamber, a liquid outlet passage, and a mixing device. The main liquid inlet passage and the branch liquid inlet passage are both communicated with the mixing chamber, the liquid outlet passage is communicated with the mixing chamber, and the mixing device is arranged in the liquid outlet passage to mix the infused liquids.

[0007] Further, a first one-way valve and a first flow regulating valve are provided on the main liquid inlet passage, and the first flow regulating valve is located downstream of the first one-way valve.

[0008] Further, a second one-way valve and a second flow regulating valve are provided on the branch liquid inlet passage, and the second flow regulating valve is located downstream of the second one-way valve.

[0009] In a second aspect, the present invention provides a hybrid infusion set, including an infusion tube, a first puncture device, a second puncture device, and the three-way joint described in the first aspect. The first puncture device is connected to one end of the infusion tube to pierce a liquid-containing container, the second puncture device is connected to the other end of the infusion tube to pierce the human body, the three-way joint is connected to the infusion tube, and the three-way joint is close to the second puncture device.

[0010] Further, the first puncture device includes a handle and a puncture needle, and the handle is sleeved on the puncture needle for finger clamping.

[0011] Further, the puncture needle includes a puncture needle body and an anti-leakage liquid component sleeved on the puncture needle body.

[0012] Further, the anti-leakage liquid component includes a blade absorption sleeve, and the blade absorption sleeve is arranged on the puncture needle body and is close to the blade of the puncture needle body.

[0013] Further, the anti-leakage liquid component further includes a clamping part anti-leakage sleeve, and the clamping part anti-leakage sleeve is sleeved on the puncture needle body and can be in contact with the rubber stopper of the liquid-containing container.

[0014] Further, the second puncture device includes a puncture device receiving groove, and the puncture device receiving groove is fixedly arranged on the infusion tube to receive the second puncture device.

[0015] Further, the puncture device receiving groove includes a receiving groove body, a puncture needle groove, and an elastic sealing clip. The puncture needle groove is opened on the receiving groove body as a receiving space for the second puncture device. An opening for the second puncture device to be placed is provided on the puncture needle groove, and the elastic sealing clip is arranged at the opening of the puncture needle groove to prevent the second puncture device from falling out.

[0016] Further, the mixing device includes a fixing rod, a rotating shaft bushing, and a mixing impeller. The fixing rod is fixedly arranged in the liquid outlet passage, the rotating shaft bushing is fixedly arranged inside the fixing rod, and the mixing impeller is arranged on the rotating shaft bushing and can rotate on the rotating shaft bushing to mix the infusion liquid.

[0017] Further, the mixing impeller includes a stirring shaft and blades fixedly arranged on the stirring shaft. The stirring shaft penetrates through the rotating shaft bushing and can rotate within the rotating shaft bushing.

[0018] Further, the mixing device further includes a positioner fixedly arranged on the fixed rod. The positioner is sleeved on the mixing impeller to straighten the mixing impeller.

[0019] Further, the blade includes a blade body and stirring piles fixedly arranged on the blade body.

[0020] Further, the positioner includes an outer sleeve, an inner sleeve, and an intermediate rod. The intermediate rod is connected between the outer sleeve and the inner sleeve. The outer sleeve is fixedly arranged on the fixed rod. The mixing impeller penetrates through the inner sleeve and can rotate within the inner sleeve to straighten the mixing impeller.

[0021] Further, the mixing chamber includes a mixing chamber body and a first flow channel, a second flow channel, and a third flow channel opened on the mixing chamber body. The first flow channel communicates with the main liquid inlet passage, the second flow channel communicates with the branch liquid inlet passage, and the third flow channel communicates with the liquid outlet passage.

[0022] Further, a magnetic adsorption patch is arranged in the puncture needle groove to adsorb the second puncture device.

[0023] At least one of the following effects can be achieved by the technical solution of the present invention:

[0024] (1) The three-way joint of the present invention includes a main liquid inlet passage, a branch liquid inlet passage, a mixing chamber, a liquid outlet passage, and a mixing device; the mixing device includes a fixed rod, a rotating shaft bushing, and a mixing impeller. The fixed rod is fixedly arranged in the liquid outlet passage. The rotating shaft bushing is fixedly arranged inside the fixed rod, and a through hole for liquid to pass through is provided on the rotating shaft bushing. The mixing impeller is arranged on the rotating shaft bushing and can rotate on the rotating shaft bushing to mix the infusion liquid; the mixing impeller directly mixes the infusion liquid. When the infusion liquid flows to the mixing impeller, the mixing impeller rotates on the rotating shaft bushing under the action of force. The mixing impeller generates a stirring force through the rotating action, so that the infusion liquids with different densities are fully mixed in the mixing chamber, breaking the layered state between the liquids, evenly distributing the layered liquids, and evenly mixing the liquid medicine. Thus, the liquid medicine infused into the body can maintain a uniform distribution of components, thereby avoiding the technical problems of inaccurate drug dosage and unstable drug efficacy caused by the layering and precipitation of the liquid medicine, and improving the accuracy and reliability of infusion treatment.

[0025] (2) The three-way joint of the present invention comprises a mixing impeller including a blade body and a stirring pile fixedly arranged on the blade body. The blade body provides a basic stirring structure, and the stirring pile is fixedly arranged on the blade body, which further enhances the stirring effect. By increasing the flow path and disturbance degree of the stirring liquid, the liquid forms a stronger vortex and mixing motion in the mixing chamber, thereby promoting the full mixing of different liquids and improving the mixing uniformity.

[0026] (3) The three-way joint of the present invention and the mixing device also include a positioner, which is mounted on the mixing impeller to straighten the mixing impeller; the mixing impeller is straightened and positioned by the positioner to ensure that the mixing impeller can maintain a stable position and posture during rotation, and avoid the mixing impeller from deflecting, shaking or tilting during liquid flow or stirring, thereby ensuring the stability and reliability of the stirring effect; in addition, the positioner can also reduce the wear between the mixing impeller and the rotating shaft liner, extend the service life of the stirring component, and also help to maintain the smoothness of the stirring process.

[0027] (4) The three-way connector of the present invention includes a filter assembly comprising a filter membrane, a support mesh and a fixed wall. The filter membrane is used to filter the infusion liquid. Through its microporous structure, it can effectively intercept tiny particles, impurities and sediments in the infusion liquid, and only allow the liquid and dissolved drug molecules to pass through, thereby ensuring the purity of the liquid infused into the patient's body, preventing adverse reactions caused by impurities entering the body, and ensuring the safety of the patient's infusion.

[0028] (5) The hybrid infusion device of the present invention includes an anti-liquid seepage component including a blade absorption sleeve, which is used to absorb the liquid in the liquid container that passes through the blade when the blade is inserted into the rubber stopper of the liquid container. As a result, it is difficult for the infusion liquid to pass through the blade of the puncture needle body and flow out along the puncture needle, thereby avoiding leakage of the infusion liquid during the insertion of the puncture needle.

[0029] (6) In the hybrid infusion set of the present invention, the second puncture device includes a puncture device receiving groove. During the infusion process, when the second puncture device is not in use, it can be placed in the receiving groove to prevent it from shaking or being lost. At the same time, the risk of puncture to the human body caused by the tip of the puncture device being exposed to the outside is avoided. As a result, the puncture device can be kept away from the outside, effectively preventing the puncture device from puncturing medical staff or patients when not in use, reducing the risk of accidental injury, and improving the safety of the infusion process.

[0030] In the present invention, the above technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can be made obvious from the description, or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the content specifically pointed out in the description and the drawings. Description of the Drawings

[0031] The drawings are only for the purpose of showing specific embodiments and are not considered as a limitation to the present invention. Throughout the drawings, the same reference signs denote the same components.

[0032] Figure 1 It is a schematic cross-sectional view of the three-way joint in Embodiment 1 of the present invention;

[0033] Figure 2 It is a schematic structural view of the mixing device in Embodiment 1 of the present invention;

[0034] Figure 3 It is a schematic structural view of the locator in Embodiment 1 of the present invention;

[0035] Figure 4 It is a schematic structural view of the mixing chamber in Embodiment 1 of the present invention;

[0036] Figure 5 It is a schematic structural view of the infusion liquid regulating valve in Embodiment 1 of the present invention;

[0037] Figure 6 It is a schematic cross-sectional structural view of the filter assembly in Embodiment 1 of the present invention;

[0038] Figure 7 It is a schematic structural view of the hybrid infusion set in Embodiment 2 of the present invention;

[0039] Figure 8 It is a schematic structural view of the first puncture device in Embodiment 2 of the present invention;

[0040] Figure 9 It is a schematic structural view of the blade absorption sleeve in Embodiment 2 of the present invention;

[0041] Figure 10 It is a schematic structural view of the puncture device receiving groove in Embodiment 2 of the present invention;

[0042] Figure 11 It is one of the schematic structural views of the defoaming cap in Embodiment 2 of the present invention;

[0043] Figure 12 It is another schematic structural view of the defoaming cap in Embodiment 2 of the present invention;

[0044] Figure 13This is a schematic structural diagram of the bubble slideway in Embodiment 2 of the present invention.

[0045] Reference numerals:

[0046] 1 - Main liquid inlet passage, 11 - First one-way valve, 12 - First flow regulating valve;

[0047] 2 - Branch liquid inlet passage, 21 - Second one-way valve, 22 - Second flow regulating valve;

[0048] 3 - Mixing chamber, 31 - Mixing chamber body, 32 - First flow channel, 33 - Second flow channel, 34 - Third flow channel, 36 - Infusion liquid regulating valve, 361 - Valve body, 3611 - Valve body opening, 362 - Valve core, 3621 - Valve core opening, 363 - Driving handle;

[0049] 4 - Liquid outlet passage, 41 - Third one-way valve, 42 - Third flow regulating valve, 43 - Filter assembly, 431 - Filter membrane, 432 - Support mesh, 433 - Fixed wall;

[0050] 5 - Mixing device, 51 - Fixed rod, 52 - Rotating shaft bushing, 53 - Mixing impeller, 531 - Stirring shaft, 532 - Blades, 5321 - Blade body, 5322 - Stirring pile, 54 - Positioner, 541 - Outer sleeve, 542 - Inner sleeve, 543 - Sleeve rod;

[0051] 100 - Infusion tube;

[0052] 200 - First puncture device, 201 - Handle, 202 - Puncture needle, 203 - Puncture needle body, 204 - Anti - leakage liquid component, 205 - Blade absorption sleeve, 206 - Absorption sleeve groove, 207 - Clamping part sealing sleeve;

[0053] 300 - Second puncture device, 301 - Accommodation groove, 302 - Accommodation groove body, 303 - Puncture needle groove, 304 - Elastic sealing clip, 305 - Magnetic adsorption patch, 306 - First sealing column, 307 - Second sealing column;

[0054] 500 - Defoaming cap, 501 - Defoaming cap body, 502 - Bubble slideway, 503 - Bubble cutter, 504 - Notch, 505 - Tip. Detailed implementation manners

[0055] The following will specifically describe the preferred embodiments of the present invention in conjunction with the accompanying drawings. Among them, the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to explain the principle of the present invention, rather than to limit the scope of the present invention.

[0056] The following will detail the technical solutions of the present application and how the technical solutions of the present application solve the above - mentioned technical problems with specific embodiments.

[0057] Example 1

[0058] As Figure 1 and Figure 2 shown, an embodiment of the present invention provides a three-way joint, which includes a main liquid inlet passage 1, a branch liquid inlet passage 2, a mixing chamber 3, a liquid outlet passage 4 and a mixing device 5. The main liquid inlet passage 1 and the branch liquid inlet passage 2 are both connected to the mixing chamber 3 so that the infusion liquid enters the mixing chamber 3. The liquid outlet passage 4 is connected to the mixing chamber 3 so that the infusion liquid in the mixing chamber 3 flows out. The mixing device 5 is arranged in the liquid outlet passage 4 to mix the infusion liquid; the mixing device 5 includes a fixed rod 51, a rotating shaft bushing 52 and a mixing impeller 53. The fixed rod 51 is fixedly arranged in the liquid outlet passage 4. The rotating shaft bushing 52 is fixedly arranged inside the fixed rod 51. The mixing impeller 53 is arranged on the rotating shaft bushing 52 and can rotate on the rotating shaft bushing 52 to mix the infusion liquid; the three-way joint as a whole can be made of polypropylene material.

[0059] The main liquid inlet passage 1 and the branch liquid inlet passage 2 serve as input channels for different infusion liquids respectively, introducing two different infusion liquids into the mixing chamber 3, providing basic conditions for subsequent mixing operations, enabling multiple liquids to converge and mix in the mixing chamber 3, and meeting the clinical need for simultaneous infusion of multiple liquids. For example, the main liquid inlet passage 1 and the branch liquid inlet passage 2 can be respectively connected to different medicine bags or syringes to deliver the medicine liquid into the mixing chamber 3; it should be noted that in the embodiments of the present application, the pipelines for introducing the infusion liquid into the mixing chamber 3 are not limited to the main liquid inlet passage 1 and the branch liquid inlet passage 2, and the number of liquid inlet pipes can be increased according to actual clinical needs.

[0060] The mixing chamber 3 serves as a space for liquid convergence and preliminary mixing. The liquids transported by the main liquid inlet passage 1 and the branch liquid inlet passage 2 are mixed in the mixing chamber 3, and its internal space is used to fuse different liquids before entering the liquid outlet passage 4. Exemplarily, the mixing chamber 3 is a spherical or cylindrical cavity.

[0061] The liquid outlet passage 4 is used to output the infusion liquid mixed in the mixing chamber 3, connect it to the patient's infusion pipeline or directly infuse it into the patient's body, and is the output channel for the mixed liquid, ensuring that the mixed liquid can smoothly flow from the inside of the three-way joint to the outside and complete the process of liquid infusion.

[0062] The mixing device 5 is used to mix the infusion liquid in the mixing chamber 3, so as to promote the full and uniform mixing of infusion liquids with different densities, avoid the phenomenon of stratification and precipitation, ensure that the components and concentrations of the medicinal liquid infused into the patient's body are uniform, and improve the safety and effectiveness of infusion treatment. Specifically, the mixing device 5 includes a fixed rod 51, a rotating shaft bushing 52 and a mixing impeller 53. The fixed rod 51 is fixedly arranged in the liquid outlet passage 4, playing the role of supporting and fixing the entire mixing device 5, ensuring the stable position of the stirring assembly in the liquid outlet passage 4, enabling it to normally perform the stirring function, and at the same time being able to withstand the acting force generated during the stirring process, ensuring that the mixing device 5 will not be displaced or damaged due to liquid flow or stirring action; the rotating shaft bushing 52 is fixedly arranged inside the fixed rod 51, further enhancing the structural stability of the mixing device 5, while not affecting the normal rotation of the mixing impeller 53, realizing liquid stirring and liquid flow, and ensuring the continuity of the stirring process and the smooth output of the liquid; the mixing impeller 53 is arranged on the rotating shaft bushing 52 and can rotate on the rotating shaft bushing 52. The mixing impeller 53 is the component that directly mixes the infusion liquid. When the infusion liquid flows to the mixing impeller 53, the mixing impeller 53 is forced to rotate on the rotating shaft bushing 52. Through the rotating action, the mixing impeller 53 generates a stirring force, enabling the infusion liquids with different densities to be fully mixed in the mixing chamber 3, breaking the stratified state between the liquids, evenly distributing the stratified liquids, and evenly mixing the medicinal liquid. Thus, the medicinal liquid infused into the body can maintain a uniform distribution of components, solving the technical problem that due to the stratification of the medicinal liquid during infusion with a multi-way connector, the drug components cannot be evenly distributed and released in the body.

[0063] An alternative solution of the embodiment of the present invention is as Figure 2 shown. The mixing impeller 53 includes a stirring shaft 531 and blades 532 fixedly arranged on the stirring shaft 531. The stirring shaft 531 passes through the rotating shaft bushing 52 and can rotate inside the rotating shaft bushing 52; the blades 532 are the components that directly contact the infusion liquid and generate a stirring force. A plurality of blades 532 are fixed on the stirring shaft 531, and the blades 532 are forced by the fluid to make the stirring shaft 531 rotate inside the rotating shaft bushing 52.

[0064] On this basis, the blade 532 includes a blade body 5321 and a stirring pile 5322 fixedly arranged on the blade body 5321. The blade body 5321 provides a basic stirring structure, and the stirring pile 5322 is fixedly arranged on the blade body 5321, further enhancing the stirring effect. By increasing the flow path and disturbance degree of the stirred liquid, stronger eddies and mixing motions are formed in the mixing chamber 3, promoting the full mixing of different liquids and improving the uniformity of the mixed liquid.

[0065] An alternative solution of the embodiment of the present invention is as Figure 1As shown, a third one-way valve 41 and a third flow regulating valve 42 are provided on the liquid outlet passage 4, and the third flow regulating valve 42 is located downstream of the third one-way valve 41; a first one-way valve 11 and a first flow regulating valve 12 are provided on the main liquid inlet passage 1, and the first flow regulating valve 12 is located downstream of the first one-way valve 11; a second one-way valve 21 and a second flow regulating valve 22 are provided on the branch liquid inlet passage 2, and the second flow regulating valve 22 is located downstream of the second one-way valve 21. Exemplarily, the above one-way valves are spring diaphragm type one-way valves; the above flow regulating valves are manual flow regulating valves.

[0066] Through the first flow regulating valve 12, the second flow regulating valve 22 and the third flow regulating valve 42, medical staff can control the input flow rate of each infusion liquid and the output flow rate of the mixed liquid, so as to realize the control of the infusion process. Thus, according to the patient's condition, treatment needs and the characteristics of the drug, the infusion speed and dose can be flexibly adjusted to ensure that the patient can accurately receive the required drug treatment, improving the accuracy and reliability of the infusion treatment and better meeting the personalized needs of clinical treatment; through the first one-way valve 11, the second one-way valve 21 and the third one-way valve 41, the backflow of liquid during the infusion process can be effectively prevented, improving the safety of the infusion process.

[0067] An alternative solution of the embodiment of the present invention, as Figure 3 shown, the mixing device 5 further includes a positioner 54. The positioner 54 is fixedly arranged on the fixed rod 51, and the positioner 54 is sleeved on the mixing impeller 53 to straighten the mixing impeller 53; the main function of the positioner 54 is to straighten and position the mixing impeller 53 to ensure that the mixing impeller 53 can maintain a stable position and attitude during rotation, avoiding phenomena such as offset, shaking or tilting of the mixing impeller 53 during the liquid flow or stirring process, so as to ensure the stability and reliability of the stirring effect; in addition, when the mixing impeller 53 rotates, due to the flow impact of the liquid and the rotational movement of the stirring shaft 531, the mixing impeller 53 may be subjected to a certain moment, resulting in its shaking or frictional collision with the inner wall of the rotating shaft bushing 52. The positioner 54 can effectively reduce this shaking, reduce the wear between the mixing impeller 53 and the rotating shaft bushing 52, extend the service life of the stirring assembly, and also help to maintain the smoothness of the stirring process and improve the mixing uniformity. Specifically, the positioner 54 includes an outer sleeve 541, an inner sleeve 542 and an intermediate rod 543. The intermediate rod 543 is connected between the outer sleeve 541 and the inner sleeve 542. The outer sleeve 541 is fixedly arranged on the fixed rod 51, and the mixing impeller 53 passes through the inner sleeve 542 and can rotate within the inner sleeve 542 to straighten the mixing impeller 53.

[0068] An alternative solution of the embodiment of the present invention, as Figure 1 and Figure 4As shown, the mixing chamber 3 includes a mixing chamber body 31 and a first flow channel 32, a second flow channel 33, and a third flow channel 34 opened on the mixing chamber body 31. The first flow channel 32 communicates with the main liquid inlet passage 1, the second flow channel 33 communicates with the branch liquid inlet passage 2, and the third flow channel 34 communicates with the liquid outlet passage 4.

[0069] The first flow channel 32 communicates with the main liquid inlet passage 1 and is the port through which the first type of infusion liquid enters the mixing chamber 3. The second flow channel 33 communicates with the branch liquid inlet passage 2 and is the port through which the second type of infusion liquid enters the mixing chamber 3. The third flow channel 34 communicates with the liquid outlet passage 4 and is the port through which the mixed liquid in the mixing chamber 3 flows out.

[0070] An alternative solution of the embodiment of the present invention, as Figure 1 and Figure 4 shown, the mixing chamber 3 further includes a flow guiding plate which is fixedly arranged in the mixing chamber body 31 to guide the flow direction of the infusion liquid.

[0071] The flow guiding plate is fixedly arranged in the mixing chamber body 31 and is used to guide and adjust the flow direction of the infusion liquid entering the mixing chamber 3 through its own shape and layout, so that different liquids flow in a predetermined path and manner, avoiding unnecessary vortices, backflows or disordered flow phenomena of the liquid in the mixing chamber body 31, so that the liquid can be mixed more orderly.

[0072] A preferred solution of the embodiment of the present invention, as Figure 5 shown, the mixing chamber 3 further includes an infusion liquid regulating valve 36. The infusion liquid regulating valve 36 includes a valve body 361, a valve core 362 and a driving handle 363. The valve body 361 is fixedly arranged in the mixing chamber body 31, and valve body openings 3611 respectively communicating with the first flow channel 32, the second flow channel 33 and the third flow channel 34 are arranged on the valve body 361. The valve core 362 can rotate in the valve body 361 to adjust the conduction and cutoff between the valve body opening 3611 and the valve core 362. The driving handle 363 is fixedly arranged on the valve core 362 to drive the valve core 362 to rotate. Among them, a valve core opening 3621 capable of being opposite to the valve body opening 3611 is opened on the valve core 362.

[0073] The multiple valve body openings 3611 arranged on the valve body 361 respectively communicate with the first flow channel 32, the second flow channel 33 and the third flow channel 34, playing the role of connecting and integrating different flow ports, providing the basic structure for the rotational adjustment of the valve core 362. Through the valve body opening 3611 and the valve core opening 3621, the valve core 362 can effectively control the conduction and cutoff states between different flow ports during the rotation process, realizing the precise adjustment of the flow direction and flow rate of the infusion liquid.

[0074] By rotating the valve core 362, the relative positional relationship between the valve body opening 3611 and the first flow channel 32, the second flow channel 33, and the third flow channel 34 can be changed, thereby realizing the control of the conduction and truncation between different flow ports. For example, when it is necessary to make the liquids in the main liquid inlet passage 1 and the branch liquid inlet passage 2 enter the mixing chamber 3 for mixing at the same time, the valve core 362 can be rotated to the corresponding position, so that different valve body openings 3611 are respectively communicated with the first flow channel 32, the second flow channel 33, and the third flow channel 34, realizing the flexible adjustment of the flow direction and flow rate of the infused liquid, and meeting different infusion requirements and treatment scenarios.

[0075] The driving handle 363 is fixedly arranged on the valve core 362 to provide a driving component for the operator (medical staff). By manually or other driving means to operate the driving handle 363, the medical staff can drive the valve core 362 to rotate within the valve body 361, thereby realizing the adjustment of the flow direction and flow rate of the infused liquid, facilitating the medical staff to timely adjust the infusion parameters according to the actual situation during the infusion process, and improving the flexibility and controllability of the infusion treatment.

[0076] It should be noted that the infusion liquid regulating valve 36 in the embodiment of the present invention can also adopt the regulating valve structure in the prior art.

[0077] An optional solution of the embodiment of the present invention is as Figure 1 and Figure 6 As shown, a filtering component 43 is further arranged on the liquid outlet passage 4. The filtering component 43 includes a filter membrane 431, a support net 432, and a fixed wall 433. The filter membrane 431 is fixedly arranged on the support net 432 to filter the infused liquid. The support net 432 is fixedly arranged on the fixed wall 433, and the fixed wall 433 is fixedly arranged on the inner wall of the liquid outlet passage 4.

[0078] The filter membrane 431 is used to filter the infused liquid. Through its microporous structure, it can effectively intercept tiny particles, impurities, precipitates, etc. in the infused liquid, and only allow the liquid and dissolved drug molecules to pass through, thereby ensuring the purity of the liquid infused into the patient's body, preventing adverse reactions caused by impurities entering the body, and guaranteeing the infusion safety of the patient. Exemplarily, the filtering pore diameter of the filter membrane 431 is 0.5 μm; the support net 432 is used to provide a support structure for the filter membrane 431 to ensure that the filter membrane 431 remains flat and taut during the liquid flow process, avoiding deformation, wrinkles, or damage of the filter membrane due to liquid pressure or its own gravity, thereby ensuring the stability and reliability of the filtering effect. At the same time, the support net 432 can also withstand a certain liquid pressure to prevent the filter membrane from being broken or damaged under high-pressure environments and extend the service life of the filtering component; the fixed wall 433 is fixedly arranged on the inner wall of the liquid outlet passage 4, playing a role in fixing and supporting the entire filtering component 43. Exemplarily, the support net 432 can adopt a stainless steel mesh, and the fixed wall 433 can adopt a polypropylene material.

[0079] Example 2

[0080] Example 2 of the present invention is as follows Figure 7 As shown, a hybrid infusion set is provided, which includes an infusion tube 100, a first puncture device 200, a second puncture device 300, and the three-way joint in Example 1. The first puncture device 200 is connected to one end of the infusion tube 100 to puncture a liquid-containing container, and the second puncture device 300 is connected to the other end of the infusion tube 100 to puncture the human body. The three-way joint is connected to the infusion tube 100 and is close to the second puncture device 300.

[0081] The infusion tube 100 serves as the main body of the hybrid infusion set and the flow channel for the infused liquid. At the same time, it also serves as the basic structure for the setting of accessory functions. The infusion tube 100 can also be provided with a flow control valve, a no-liquid alarm device, etc. For example, the infusion tube 100 can be made of PVC or TPU material. As a consideration for isolating sunlight or light, a sunscreen film can be coated on the infusion tube 100 to prevent sunlight or light from affecting the active ingredients in the infusion tube 100; the first puncture device 200 is used to puncture into the liquid-containing container through the rubber stopper to obtain the infused liquid, and it can be made of ABS plastic material; the second puncture device 300 is used to puncture the human body to input the infused liquid into the human body, and it can be made of stainless steel material; the three-way joint can enable the infused liquids with different densities to be fully mixed in the mixing chamber 3, break the layered state between the liquids, evenly distribute the layered liquids, and evenly mix the medicinal liquids. Thus, the medicinal liquid infused into the body can maintain a uniform distribution of components.

[0082] An alternative solution of the embodiment of the present invention is as follows Figure 8 As shown, the first puncture device 200 includes a handle 201 and a puncture needle 202. The handle 201 is fixedly arranged on the puncture needle 202. The puncture needle 202 includes a puncture needle body 203 and an anti-leakage liquid component 204 sleeved on the puncture needle body 203. The anti-leakage liquid component 204 can be used to prevent leakage when the puncture needle body 203 is inserted into the rubber stopper of the liquid-containing container.

[0083] The handle 201 is used for stable gripping by the hand. It can adopt a columnar structure. As a consideration for ergonomics, grooves can be opened at both ends of the handle 201. The grooves at both ends cooperate with the thumb and index finger of the hand respectively to make the clamping of the handle 201 by the hand more stable. Exemplarily, the handle 201 can be made of rubber material, and a through hole cooperating with the puncture needle 202 is opened thereon. The cooperation between the through hole and the puncture needle 202 can be an interference fit, and the handle 201 can move axially on the puncture needle 202; the puncture needle 202 is used to puncture the rubber stopper of the liquid-containing container, and the anti-leakage liquid component 204 is used to prevent leakage.

[0084] An alternative solution of the embodiment of the present invention is as follows Figure 8As shown, the anti-leakage liquid component 204 includes a blade absorption sleeve 205. The blade absorption sleeve 205 is disposed on the puncture needle 202 and is adjacent to the blade of the puncture needle body 203. The blade absorption sleeve 205 is made of a water-absorbing material, such as water-absorbing silica gel. When the puncture needle 202 pierces the rubber stopper, the infusion liquid easily passes through the blade of the puncture needle 202 and then flows out along the puncture needle 202. This is a common situation that causes the leakage of the infusion liquid. The blade absorption sleeve 205 is used to absorb the liquid that passes through the blade when the blade is inserted into the rubber stopper of the liquid-containing container. Thus, it is difficult for the infusion liquid to pass through the blade of the puncture needle body 203 and flow out along the puncture needle 202, avoiding the leakage of the infusion liquid during the insertion of the puncture needle 202.

[0085] On this basis, as Figure 9 shown, the blade absorption sleeve 205 is in a sleeve structure. An absorption sleeve receiving groove 206 for the blade absorption sleeve 205 to be sleeved into is formed on the puncture needle body 203. The blade absorption sleeve 205 is partially embedded in the absorption sleeve receiving groove 206, and the blade absorption sleeve 205 has a part protruding from the absorption sleeve receiving groove 206. Thus, the blade absorption sleeve 205 realizes the absorption of the leaked liquid and, moreover, serves as a seal during the cooperation between the puncture needle body 203 and the rubber stopper.

[0086] As an improvement, as Figure 9 shown, the cross-section of the blade absorption sleeve 205 is strip-shaped. There is a certain angle between the part of the blade absorption sleeve 205 protruding from the absorption sleeve receiving groove 206 and the outer wall of the puncture needle body 203, which can be 30 - 60°, specifically such as 35° or 40°. Thus, the blade absorption sleeve 205 has a tendency to expand outwards. During the contact with the rubber stopper of the liquid-containing container, it can support itself in the rubber stopper of the liquid-containing container by its own shape, playing the role of water absorption and sealing.

[0087] An alternative solution of the embodiment of the present invention, as Figure 8 shown, the anti-leakage liquid component 204 includes a clamping part sealing sleeve 207. The clamping part sealing sleeve 207 is sleeved on the puncture needle body 203 and is in contact with the rubber stopper of the liquid-containing container. Through the clamping part sealing sleeve 207, the seal between the puncture needle body 203 and the rubber stopper of the liquid-containing container is maintained during the infusion process, preventing the leakage of liquid during the liquid infusion; exemplarily, the clamping part sealing sleeve 207 can be made of silica gel material. It should be noted that the hardness of the clamping part sealing sleeve 207 is less than the hardness of the rubber stopper. Thus, during the liquid infusion process, the clamping part sealing sleeve 207 can be extruded into the deformed part of the rubber stopper, thereby blocking the leakage of liquid.

[0088] On this basis, a plurality of clamping part sealing sleeves 207 are sleeved on the puncture needle body 203. For example, there are 2-3 clamping part sealing sleeves 207. The outer diameter of the clamping part sealing sleeve 207 is larger than the outer diameter of the puncture needle body 203, and the clamping part sealing sleeve 207 can be pasted on the puncture needle body 203. As an improvement, the clamping part sealing sleeve 207 located at the upper end is made of a water-absorbing material, such as a polymer gel water-absorbing sealing sleeve, and the clamping part sealing sleeve 207 located at the lower end is made of silica gel material.

[0089] An alternative solution of the embodiment of the present invention is as Figure 10 shown, the second puncture device 300 includes a puncture device receiving groove 301. The puncture device receiving groove 301 is fixedly arranged on the infusion tube 100 to accommodate the second puncture device 300 to prevent the second puncture device 300 from stabbing the human body. The puncture device receiving groove 301 is fixedly arranged on the infusion tube 100, which plays a role in fixing and protecting the second puncture device 300. During the infusion process, when the second puncture device 300 is not in use, it can be placed in the puncture device receiving groove 301 to prevent it from shaking or being lost randomly, and at the same time, it also avoids the risk of stabbing the human body caused by the tip of the puncture device being exposed outside. After the infusion is completed, in order to avoid the tip of the puncture device being exposed outside, the second puncture device 300 is placed in the puncture device receiving groove 301 again. Exemplarily, the puncture device receiving groove 301 can be made of plastic material. In the prior art, the puncture device is generally sleeved with a puncture device tube. When in use, the puncture device tube is pulled out, and the tip of the puncture device is easily exposed outside and stabs the human body. Through the puncture device receiving groove 301 fixedly arranged on the infusion tube 100, the puncture device can be prevented from being exposed outside. Thus, it effectively avoids the puncture device from stabbing medical staff or patients in the non-use state, reduces the risk of accidental injury, and improves the safety of the infusion process.

[0090] An alternative solution of the embodiment of the present invention is as Figure 10 shown, the puncture device receiving groove 301 includes a receiving groove body 302, a puncture needle groove 303 and an elastic sealing clip 304. The puncture needle groove 303 is opened on the receiving groove body 302 to serve as a receiving space for the second puncture device 300. An opening for the second puncture device 300 to be placed is provided on the puncture needle groove 303, and the elastic sealing clip 304 is arranged at the opening of the puncture needle groove 303 to prevent the second puncture device 300 from falling out.

[0091] On this basis, a magnetic adsorption sticker 305 is arranged in the puncture needle groove 303 to adsorb the second puncture device 300. Thus, the second puncture device 300 can be set more firmly in the puncture needle groove 303. Exemplarily, the magnetic adsorption sticker 305 can be pasted in the puncture needle groove 303, and the magnetic adsorption sticker 305 can be made of a strong magnetic material, such as neodymium iron boron.

[0092] On this basis, the elastic sealing clip 304 includes a first sealing post 306 and a second sealing post 307, both of which are elastic. Exemplarily, both can be made of silicone material. The first sealing post 306 is pasted on one side end of the puncture needle groove 303, and the second sealing post 307 is pasted on the other side end of the puncture needle groove 303. The first sealing post 306 and the second sealing post 307 are pressed against each other, and the second puncture device 300 can pass through the space where the first sealing post 306 and the second sealing post 307 are pressed against each other under force and enter the puncture needle groove 303. After the second puncture device 300 enters the puncture needle groove 303, the first sealing post 306 and the second sealing post 307 can also press against the second puncture device 300 to fix the second puncture device 300. Combined with the adsorption effect of the magnetic adsorption sticker 305, the second puncture device 300 can be firmly fixed in the puncture needle groove 303. Thus, further avoiding the puncture device from stabbing medical staff or patients in the non-use state and reducing the risk of accidental injury.

[0093] An alternative solution of the embodiment of the present invention is as Figure 11 and Figure 12 shown, the hybrid infusion set further includes an antifoaming cap 500. Exemplarily, the antifoaming cap 500 has a straw hat-like structure, and both its top and bottom are open for the infusion liquid to pass through. The antifoaming cap 500 is fixedly arranged (by bonding) in the infusion tube 100 and is close to the second puncture device 300. The antifoaming cap 500 includes an antifoaming cap body 501 and a bubble slideway 502 opened on the antifoaming cap body 501. It should be noted that the bubble slideway 502 adopts a smooth slideway surface. For example, the smoothness of the slideway surface adopts sub-micron precision or nano-precision, and the material can be glass. The straw hat-like structure of the antifoaming cap 500 increases the contact area of the liquid in the infusion tube 100, which is beneficial to the separation and floating of bubbles and provides a basic condition for the smooth discharge of bubbles. Exemplarily, the cross-sectional shape of the bubble slideway 502 can be arc-shaped or semi-circular. During the liquid infusion process, the generated micro-bubbles can be adsorbed on the antifoaming cap body 501 and move along the smooth bubble slideway 502 in the direction opposite to the infusion direction, move to the top of the antifoaming cap body 501, and after multiple bubbles converge at the top of the antifoaming cap body 501, they become larger bubbles and move along the infusion tube 100 in the direction opposite to the infusion direction. Thus, it can effectively separate and remove the bubbles in the liquid during the infusion process, and it is difficult for micro-bubbles to enter the human body along with the infusion liquid. The above solution aims to solve the problem that micro-bubbles enter the blood vessels and stimulate the inner wall of the blood vessels, causing local venous inflammatory reactions, such as local redness, swelling, pain and other symptoms. Further, by removing the bubbles in the liquid, it avoids serious consequences such as air embolism that may be caused by bubbles entering the human blood vessels and ensures the infusion safety of patients.

[0094] An alternative solution of the embodiment of the present invention is as Figure 13As shown, multiple bubble chutes 502 are provided on the defoaming cap body 501. The multiple bubble chutes 502 extend from the bottom end to the top end of the defoaming cap body 501. Bubble cutters 503 are provided between adjacent bubble chutes 502. The bubble cutters 503 are used to pierce the bubbles in the infused liquid; the bubble cutters 503 can effectively destroy the integrity of the bubbles, reduce the volume of the bubbles, enable the bubbles to rise and be discharged in the bubble chutes, improve the separation efficiency of the bubbles, reduce the content of bubbles in the liquid, and further improve the safety and reliability of the infusion.

[0095] On this basis, as Figure 13 shown, multiple notches 504 are provided on the bubble cutter 503. The notches 504 include a tip 505 for piercing the bubbles in the infused liquid. Exemplarily, the shape of the notch can be V-shaped, and its tip is sharp to more effectively pierce the bubbles.

[0096] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A tee joint, characterized in that, It includes a main liquid inlet passage (1), a branch liquid inlet passage (2), a mixing chamber (3), a liquid outlet passage (4) and a mixing device (5). The main liquid inlet passage (1) and the branch liquid inlet passage (2) are both communicated with the mixing chamber (3), the liquid outlet passage (4) is communicated with the mixing chamber (3), and the mixing device (5) is arranged in the liquid outlet passage (4) to mix the infusion liquid.

2. The tee joint according to claim 1, characterized in that, A first one-way valve (11) and a first flow regulating valve (12) are arranged on the main liquid inlet passage (1), and the first flow regulating valve (12) is located downstream of the first one-way valve (11).

3. The tee joint according to claim 1, characterized in that, A second one-way valve (21) and a second flow regulating valve (22) are arranged on the branch liquid inlet passage (2), and the second flow regulating valve (22) is located downstream of the second one-way valve (21).

4. The tee joint according to claim 1, wherein The mixing chamber (3) includes a mixing chamber body (31) and a first flow channel (32), a second flow channel (33) and a third flow channel (34) opened on the mixing chamber body (31). The first flow channel (32) is communicated with the main liquid inlet passage (1), the second flow channel (33) is communicated with the branch liquid inlet passage (2), and the third flow channel (34) is communicated with the liquid outlet passage (4).

5. A hybrid infusion set, characterized in that, It includes an infusion tube (100), a first puncture device (200), a second puncture device (300) and the three-way joint according to any one of claims 1-4. The first puncture device (200) is communicated with one end of the infusion tube (100) to puncture a liquid-containing container, the second puncture device (300) is communicated with the other end of the infusion tube (100) to puncture a human body, and the three-way joint is communicated on the infusion tube (100).

6. The hybrid infusion set according to claim 5, wherein The first puncture device (200) includes a handle (201) and a puncture needle (202), and the handle (201) is sleeved on the puncture needle (202) for finger clamping.

7. The hybrid infusion set according to claim 6, wherein, The puncture needle (202) includes a puncture needle body (203) and an anti-leakage liquid component (204) sleeved on the puncture needle body (203).

8. The hybrid infusion set according to claim 7, characterized in that, The anti-leakage liquid component (204) includes a blade absorption sleeve (205), and the blade absorption sleeve (205) is arranged on the puncture needle body (203) and is close to the blade of the puncture needle body (203).

9. The hybrid infusion set according to claim 7, characterized in that, The anti-leakage liquid component (204) further includes a clamping part anti-leakage sleeve (206), and the clamping part anti-leakage sleeve (206) is sleeved on the puncture needle body (203) and can abut against the rubber stopper of the liquid-containing container.

10. The hybrid infusion set according to claim 7, wherein, The second puncture device (300) includes a puncture device receiving groove (301), and the puncture device receiving groove (301) is fixedly arranged on the infusion tube (100) to receive the second puncture device (300).

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