Environmentally friendly disposable infusion set

Abstract

This invention discloses an environmentally friendly disposable infusion set, including a puncture device, an infusion tubing, a drip chamber, and a flow regulator. The puncture device, infusion tubing, drip chamber, and flow regulator are all made of PP and / or TPE. The two connected sections are fixed by ultrasonic welding, laser welding, or electric heating. This invention uses PP and / or TPE, which are compatible with each other and do not require cyclohexyl ketone adhesive for connection. This makes the raw materials used in infusion products more consistent, which can make the recycling of medical waste easier and achieve the purpose of recycling. At the same time, it avoids the recycling difficulties caused by the inability to classify waste and ends the old treatment method of incineration.

Description

Technical Field

[0001] This invention belongs to the field of infusion set technology, and more specifically relates to an environmentally friendly disposable infusion set. Background Technology

[0002] It is a common medical consumable that is sterilized to establish a channel between the vein and the medication for intravenous infusion.

[0003] Disposable infusion sets are currently connected using cyclohexanone adhesive, which is a flammable and explosive substance, posing significant risks to safe storage and use.

[0004] Meanwhile, cyclohexanone is neither a sensitizer nor a carcinogen. The IARC classifies it as a Group 3 carcinogen (non-human carcinogen). A 28-day repeated intravenous administration study in rats yielded a NOAEL of 100 mg / kg / day for cyclohexanone, a minimum lethal dose (LDL0) of 284 mg / kg for acute toxicity via intravenous injection in monkeys, and a maximum tolerated oral dose of 910 mg / kg in 25-week-old rats.

[0005] The main harmful effects of cyclohexanone on the human body include: promoting intracellular oxidation processes, accelerating hemolysis, damaging DNA chains, and potentially leading to hepatocellular carcinoma. It also has an inhibitory effect on the nervous system, with more pronounced toxic reactions in individuals with impaired liver function and infants.

[0006] Meanwhile, current disposable infusion sets have the following problems: 1. They are made of materials such as ABS / PE / PVC / PP, and multiple materials are connected using cyclohexanone adhesive. Cyclohexanone is a flammable and explosive substance, posing a significant risk to safe storage and use. 2. Each part is made of different materials, and these materials need to be separated and incinerated during recycling. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a method in which all parts except the infusion needle are made of PP and / or TPE. The two materials are compatible and do not require cyclohexyl ketone adhesive for bonding. This makes the raw materials used in infusion products more consistent, which can make the recycling of medical waste easier and achieve the purpose of recycling. At the same time, it avoids the recycling difficulties caused by the inability to classify waste and ends the old treatment method of incineration.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an environmentally friendly disposable infusion set, comprising a puncture device, an infusion tubing, a drip, and a flow regulator, wherein the puncture device, infusion tubing, drip, and flow regulator are all made of PP and / or TPE, and the two interconnected sections are connected and fixed by ultrasonic welding, laser welding, or electric heating.

[0009] Furthermore, it also includes an infusion bottle with a cap, both the infusion bottle and the cap being made of PP and / or TPE.

[0010] Furthermore, the flow regulator is provided with an infusion needle suspension tube, which is open on both the top and bottom surfaces. An inlet / outlet opening is provided on the side of the infusion needle suspension tube, which is open on both the top and bottom surfaces. A slot is also provided on the side of the infusion needle suspension tube, which extends downward from the top surface of the infusion needle suspension tube.

[0011] Furthermore, the bottom surface of the infusion needle suspension cylinder is provided with a first guide slope corresponding to the inlet and outlet opening, and a first flare is formed at the guide slope.

[0012] Furthermore, a second guide slope is provided on the top surface of the infusion needle suspension cylinder corresponding to the slot, and a second flare is formed at the second guide slope.

[0013] Furthermore, the puncture device includes a first housing and a second housing, with a filter chamber formed between the first housing and the second housing. The first housing is provided with a puncture part, and an air inlet channel is provided inside the puncture part. The front surface of the first housing is flush with the surface of the puncture part. An air inlet hole is opened on the front surface of the first housing, and an air filter membrane is provided inside the air inlet hole. The air inlet hole is connected to the air inlet channel. An air plug is provided on the back surface of the first housing, and the air plug separates the air inlet channel from the filter chamber.

[0014] Furthermore, the first housing is provided with a protruding ring at the air plug location, the protruding ring is directly opposite the air inlet, and the protruding ring forms an installation port, on which the air plug is fixed.

[0015] Furthermore, the convex ring protrudes into the filter cavity.

[0016] Furthermore, the air plug includes a cap and a plug portion. A retaining ring is provided on the outer side of the plug portion, and an annular groove is formed on the inner side of the convex ring. The retaining ring is engaged in the annular groove, and the cap covers the outer side of the convex ring.

[0017] Furthermore, the air intake includes a perforated groove that penetrates the first housing, the perforated groove causing the air intake to form a marking area.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: except for the infusion needle, the rest of the parts are made of PP and / or TPE. The two materials are compatible and do not require cyclohexyl ketone adhesive for bonding, which makes the raw materials used in infusion products more consistent, making the recycling of medical waste easier and achieving the purpose of recycling. At the same time, it avoids the recycling difficulties caused by the inability to classify the waste and ends the old treatment method of incineration. In addition, the infusion needle suspension cylinder arranged on the flow regulator can temporarily suspend and store the infusion needle. The puncture device does not need to be equipped with a thickened area, which takes up less space. Attached Figure Description

[0019] Figure 1 This is the front view of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the flow regulator in this invention;

[0022] Figure 4 This is a side view of the infusion puncture device of the present invention;

[0023] Figure 5 This is a front view of the infusion puncture device in this invention;

[0024] Figure 6 for Figure 5 Cross-sectional view at point AA;

[0025] Figure 7 for Figure 6 Enlarged view of section B in the middle.

[0026] Reference numerals: 1. Puncture device; 11. First housing; 111. Air inlet; 112. Protruding ring; 1126. Annular groove; 12. Second housing; 13. Puncture section; 131. Air inlet channel; 132. Fluid outlet channel; 14. Drug solution filter membrane; 15. Filter chamber; 16. Air plug; 161. Plug; 1611. Retaining ring; 162. Cap; 2. Infusion tubing; 3. Drip; 4. Flow regulator; 42. Infusion needle suspension tube; 421. Inlet / outlet opening; 4211. First flare; 422. Retaining groove; 4221. Second flare; 5. Infusion bottle; 6. Bottle cap. Detailed Implementation

[0027] Reference Figures 1 to 7 The embodiments of the environmentally friendly disposable infusion set of the present invention are further described below.

[0028] In the description of this invention, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. They should not be construed as limiting the specific protection scope of this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this invention, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0030] An environmentally friendly disposable infusion set includes a puncture device 1, an infusion tube 2, a drip 3, and a flow regulator 4. The puncture device 1, the infusion tube 2, the drip 3, and the flow regulator 4 are all made of PP and / or TPE, and the two connected sections are fixed together by ultrasonic welding, laser welding, or electric heating.

[0031] In this invention, except for the infusion needle which needs to be made of metal, the rest of the components can be made of PP and / or TPE, which are recyclable and environmentally friendly polymer materials. Furthermore, the overall product composition utilizes integrated and compatible materials, ensuring consistency in the raw materials used in infusion products. This simplifies the recycling of medical waste, achieving the goal of reuse. It also avoids the recycling difficulties caused by the inability to classify waste, ending the outdated incineration method. Moreover, the parts originally connected using cyclohexanone adhesive are now joined using advanced technologies such as ultrasonic welding, laser welding, and heat sealing, eliminating the need for cyclohexanone.

[0032] In this embodiment, the infusion bottle 5 is preferably also included, and the infusion bottle 5 is provided with a bottle cap 6. Both the infusion bottle 5 and the bottle cap 6 are made of PP and / or TPE.

[0033] After use, it can be disposed of together with the puncture device 1, infusion tube 2, etc., without the need for separate separation; and preferably, the puncture part 13 on the puncture device 1 has threads, which can spirally pass through the bottle cap 6, so as to achieve good fixation by reaching a shorter distance into the infusion bottle 5, reducing drug residue. When recycled, there is no drug residue, which is more environmentally friendly and safe, and at the same time eliminates the need for a separate rubber stopper on the infusion bottle 5.

[0034] In this preferred embodiment, the flow regulator 4 is provided with an infusion needle suspension cylinder 42, which is open on both the upper and lower sides. An inlet / outlet opening 421 is provided on the side of the infusion needle suspension cylinder 42, which is open on both the upper and lower sides. A slot 422 is also provided on the side of the infusion needle suspension cylinder 42, which extends downward from the top surface of the infusion needle suspension cylinder 42.

[0035] The infusion needle suspension cylinder 42 is located on the back of the flow regulator 4. The infusion needle suspension cylinder 42 and the flow regulator 4 are made of the same material and are integrally formed. The bottom of the slot 422 does not penetrate the infusion needle suspension cylinder 42. Its depth from top to bottom is preferably such that when the infusion needle is inserted, its needle tip does not protrude to the top surface of the infusion needle suspension cylinder 42. In use, the flow regulator 4 is usually located in the middle of the infusion tube 2. When not infusing, the roller completely clamps the infusion tube 2 to shut off the infusion. Hold the infusion needle with one hand and hold the two sides of the flow regulator 4 with the other hand. This will not affect the roller and the infusion tube 2. Pass the infusion tube 2 through the infusion needle suspension cylinder 42 until the infusion needle reaches the top position. Then, the hand plate of the infusion needle (the plate-like structure that operates the infusion needle) moves downward along the slot 422 and is inserted. At this time, the infusion needle is temporarily stored and inserted. When taking it out, simply lift it upward.

[0036] Preferably, the bottom surface of the infusion needle suspension cylinder 42 is provided with a first guide slope corresponding to the inlet / outlet opening 421, and a first flared opening 4211 is formed at the guide slope.

[0037] The first flared opening 4211 facilitates the entry of the infusion tube 2 into the infusion needle suspension cylinder 42. Especially when the size of the inlet / outlet opening 421 is larger than the diameter of the infusion tube 2, it allows the hand to quickly enter the inlet / outlet opening 421.

[0038] Preferably, the top surface of the infusion needle suspension cylinder 42 is provided with a second guide slope at the corresponding slot 422, and a second flare 4221 is formed at the second guide slope.

[0039] The second flare 4221 facilitates the quick insertion of the handheld piece into the slot 422.

[0040] In one embodiment, the preferred puncture device 1 includes a first housing 11 and a second housing 12, with a filter chamber 15 formed between the first housing 11 and the second housing 12. A puncture portion 13 is provided on the first housing 11, and an air inlet channel 131 and a liquid outlet channel 132 are provided inside the puncture portion 13. The liquid outlet channel 132 communicates with the filter chamber 15. The front surface of the first housing 11 is flush with the surface of the puncture portion 13. An air inlet hole 111 is provided on the front surface of the first housing 11, and an air filter membrane is provided inside the air inlet hole 111. The air inlet hole 111 communicates with the air inlet channel 131. An air plug 16 is provided on the back surface of the first housing 11, which separates the air inlet channel 131 from the filter chamber 15.

[0041] The front side is the outer side of the first housing 11, and the back side is the opposite side.

[0042] Specifically, the first housing 11 is provided with a protruding ring 112 at the air plug 16. The protruding ring 112 is directly opposite the air inlet 111, and an installation port is formed at the protruding ring 112. The air plug 16 is fixed to the protruding ring 112.

[0043] During assembly, the air plug 16 is not fixed to the convex ring 112, and the mounting port is in an open state. The air filter membrane is fixed to the air inlet 111 through the mounting port, and then the air plug 16 is fixed to the convex ring 112 to form a sealing structure. The air plug 16 blocks the air inlet channel 131 and the filter chamber 15. Then, the second housing 12 is fixed to the first housing 11 and the liquid filter membrane 14 is clamped and fixed. In this embodiment, the air filter membrane is installed on the back, and there is no need to thicken the front of the first housing 11 to fix the air filter membrane.

[0044] Preferably, the convex ring 112 protrudes into the filter cavity 15, which allows for a large communication space between the air intake channel 131 and the air intake hole 111, and facilitates the operation of the air plug 16.

[0045] In one embodiment, the air inlet 111 includes a perforated groove that penetrates the first housing 11. The perforated groove makes the air inlet 111 form a marking area. There can be multiple perforated grooves, which can not only be used for ventilation, but also be combined to form specific patterns, such as trademark patterns, public welfare patterns or other logos.

[0046] Meanwhile, the hollowed-out groove of the air intake 111 can be integrally formed with the first housing 11.

[0047] Preferably, the air plug 16 includes a cap 162 and a plug 161. A retaining ring 1611 is provided on the outer side of the plug 161. An annular groove 1126 is provided on the inner side of the convex ring 112. The retaining ring 1611 is inserted into the annular groove 1126, and the cap 162 covers the outer side of the convex ring 112.

[0048] During assembly, the plug 161 extends into the inner side of the convex ring 112 until the retaining ring 1611 reaches the annular groove 1126 and is engaged in the annular groove 1126. To facilitate the insertion of the plug 161, the retaining ring 1611 is provided with a chamfer or rounded corner on the side facing the convex ring 112. After the retaining ring 1611 reaches the annular groove 1126, the cap 162 can just cover the surface of the convex ring 112 to form a sealing structure.

[0049] To achieve better sealing, the end of the convex ring 112 in this embodiment is provided with a step, and the outer edge of the cap 162 is bent to completely cover the step.

[0050] In this embodiment, the preferred filter chamber 15 has a medicine filter membrane 14, wherein the medicine filter membrane 14 is made of nylon mesh material, and the risk of fibers generated at the cutting edge flowing into the human body is avoided by ultrasonic heat sealing process.

[0051] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An environmentally friendly disposable infusion set, comprising a puncture device, an infusion tubing, a drip chamber, and a flow regulator, characterized in that: The puncture device, infusion tubing, drip, and flow regulator are all made of PP and / or TPE, and the two interconnected sections are fixed by ultrasonic welding, laser welding, or electric heating. The puncture device includes a first housing and a second housing, with a filter chamber formed between the first housing and the second housing. A puncture part is provided on the first housing, and an air inlet channel is provided inside the puncture part. The front surface of the first housing is flush with the surface of the puncture part. An air inlet hole is provided on the front surface of the first housing, and an air filter membrane is provided inside the air inlet hole. The air inlet hole is connected to the air inlet channel. An air plug is provided on the back surface of the first housing, and the air plug separates the air inlet channel from the filter chamber. The first housing has a protruding ring at the air plug location, with the protruding ring facing the air inlet and forming an installation port, on which the air plug is fixed.

2. The environmentally friendly disposable infusion set according to claim 1, characterized in that: It also includes an infusion bottle with a cap, and both the infusion bottle and the cap are made of PP and / or TPE.

3. The environmentally friendly disposable infusion set according to claim 1 or 2, characterized in that: The flow regulator is equipped with an infusion needle suspension tube, which is open on both the top and bottom surfaces. An inlet / outlet opening is provided on the side of the infusion needle suspension tube, which is open on both the top and bottom surfaces. A slot is also provided on the side of the infusion needle suspension tube, which extends downward from the top surface of the infusion needle suspension tube.

4. The environmentally friendly disposable infusion set according to claim 3, characterized in that: The bottom surface of the infusion needle suspension cylinder is provided with a first guide slope corresponding to the inlet and outlet opening, and a first flare is formed at the guide slope.

5. The environmentally friendly disposable infusion set according to claim 4, characterized in that: The top surface of the infusion needle suspension cylinder is provided with a second guide slope corresponding to the slot, and a second flare is formed at the second guide slope.

6. The environmentally friendly disposable infusion set according to claim 5, characterized in that: The protruding ring extends into the filter cavity.

7. The environmentally friendly disposable infusion set according to claim 6, characterized in that: The air plug includes a cap and a plug. A retaining ring is provided on the outer side of the plug. An annular groove is provided on the inner side of the convex ring. The retaining ring is engaged in the annular groove. The cap covers the outer side of the convex ring.

8. The environmentally friendly disposable infusion set according to claim 7, characterized in that: The air intake includes a perforated groove that penetrates the first housing, and the perforated groove makes the air intake form a marking area.

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