Infusion channel expansion head

Abstract

The utility model relates to the technical field of intravenous infusion channels, and discloses an infusion channel expansion head which comprises a first one-way valve, a second one-way valve and a protection device. The first one-way valve comprises a connecting pipe used for being connected with an infusion apparatus and a plurality of inserting pipes used for being connected with connecting pipes of other infusion channel expansion heads. A plurality of second one-way valves are arranged; one end of the second one-way valve is communicated with the second one-way valve through an infusion tube, and the other end is connected with an injector for injecting medicine; the infusion tube and the insertion tube are both unidirectionally communicated with the connecting tube; the protection device comprises a protection shell, and the second one-way valve is arranged in the protection shell; the multiple injectors and the infusion apparatus are connected through the second one-way valve, the infusion tube and the first one-way valve, the second one-way valve and the first one-way valve can block medicine, backflow or series flow of the medicine is avoided, and medicine pollution and leakage are avoided; and the protective shell can prevent the hand from being in direct contact with the second one-way valve.

Description

Technical Field

[0001] The utility model relates to the technical field of venous infusion channels, in particular to an infusion channel expansion head. Background Art

[0002] Intravenous infusion is a method of injecting large amounts of sterile liquids, electrolytes, and drugs into the body through veins using the principles of atmospheric pressure and liquid static pressure. Patients often need to add drugs to the infusion tube during intravenous infusion, especially emergency patients, anesthesia surgery patients, and ICU patients. Because there are many types of drugs to be added, and most of them are continuously added, it is often necessary to connect multiple infusion tees and infusion sets to achieve multi-channel drug delivery to patients.

[0003] However, in the existing infusion three-way devices, due to problems such as manual operating errors, it is easy to forget to screw the channel of the infusion three-way device back to a closed state after administering the medicine, which leads to reflux of the medicine at the infusion three-way device. In more serious cases, it may cause leakage or seepage of the infusion three-way device, which brings a lot of inconvenience to clinical work. In addition, the existing infusion three-way devices have poor protection effect on the drug administration port. When administering the medicine, it is often necessary to pinch the drug administration port by hand to connect it with the syringe, which poses a risk of bacterial infection. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to avoid the backflow of the drug solution and how to improve the protection of the drug delivery end. In order to solve the above technical problems, the utility model provides an infusion channel expansion head, including a first one-way valve, a second one-way valve and a protective device;

[0005] The first one-way valve includes a connecting tube for connecting to an infusion set and a plurality of plug-in tubes for connecting to connecting tubes of other infusion channel expansion heads;

[0006] There are multiple second one-way valves; one end of the second one-way valve is connected to the second one-way valve through an infusion tube, and the other end is used to connect a syringe for injecting medicine; the infusion tube and the plug tube are both in one-way communication with the connecting tube;

[0007] The protection device comprises a protection shell, and the second one-way valve is arranged in the protection shell.

[0008] Preferably, the plug-in tube cover is provided with a sealing cover, the inner wall of the sealing cover is provided with a sealing ring to seal with the inner wall of the plug-in tube, and the outer wall of the sealing cover is provided with an anti-slip column.

[0009] Preferably, an opening on one side of the protective shell forms a receiving cavity, the second one-way valve is fixed in the receiving cavity, and the infusion tube passes through the side wall of the protective shell and is correspondingly connected to the second one-way valve located in the protective shell.

[0010] Preferably, a box cover is provided on the opening side of the accommodating cavity, and the box cover is hinged to the protective shell.

[0011] Preferably, an elastic block is fixedly connected to one side of the box cover away from the hinge, a limit block is provided on the side of the elastic block facing the outer wall of the protective shell, and a limit hole is provided on the outer wall of the protective shell corresponding to the limit block.

[0012] Preferably, a label plate is provided on the outer wall of the protective shell corresponding to the second one-way valve, and the label plate is used to display information of replaceable medicines.

[0013] Preferably, two fixing plates are provided on a side of the protective shell away from the opening of the accommodating cavity, the two fixing plates are arranged opposite to each other, and anti-slip strips are provided on the fixing plates.

[0014] Compared with the prior art, the infusion channel expansion head provided in the embodiment of the utility model has the following beneficial effects:

[0015] The utility model connects multiple syringes that need to inject drugs with the infusion set through the second one-way valve, the infusion tube and the first one-way valve, so that medical staff can timely and accurately inject different drugs into the patient's body through the infusion set, and the second one-way valve and the first one-way valve are set to block the injected drugs, and no additional operation is required after the drugs are injected to avoid the backflow or cross-flow of the drugs into the syringe, which saves time and effort and effectively avoids the problems of drug contamination and drug leakage; and the protection shell is set to provide protection for the second one-way valve, and when the syringe is connected to the second one-way valve, it can also avoid direct contact between the hands and the second one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the utility model;

[0017] Figure 2 It is a schematic diagram of the splitting of the first one-way valve and the second one-way valve in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the protective device of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the box cover of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the elastic block of the utility model.

[0021] In the figure: 1. first one-way valve; 11. connecting pipe; 12. plug-in pipe; 13. sealing cover; 131. anti-slip column; 2. second one-way valve; 3. infusion tube; 4. protective shell; 41. accommodating chamber; 42. box cover; 421. elastic block; 422. limit block; 43. limit hole; 44. label plate; 45. fixing plate; 451. anti-slip strip. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figures 1 to 5 As shown, the preferred embodiment of the utility model provides an infusion channel expansion head, which includes a first one-way valve, a second one-way valve and a protective device;

[0024] The first one-way valve includes a connecting tube for connecting to an infusion set and a plurality of plug-in tubes for connecting to connecting tubes of other infusion channel expansion heads;

[0025] There are multiple second one-way valves; one end of the second one-way valve is connected to the second one-way valve through an infusion tube, and the other end is used to connect a syringe for injecting medicine; the infusion tube and the plug tube are both in one-way communication with the connecting tube;

[0026] The protection device comprises a protection shell, and the second one-way valve is arranged in the protection shell.

[0027] Specifically, the syringe used for pushing the drug is connected to the first one-way valve through the second one-way valve and the infusion tube. When pushing the drug, the drug in the syringe passes through the second one-way valve, the infusion tube and the first one-way valve in turn, and finally enters the infusion set through the connecting tube on the first one-way valve, and then is injected into the patient's body through the infusion set. The first one-way valve is connected to multiple second one-way valves through the infusion tube, that is, the first one-way valve can be connected to multiple syringes, so as to achieve simultaneous and alternating administration of multiple drugs. The setting of the second one-way valve can prevent the drug pushed out of the syringe from flowing back into the syringe and contaminating the drug that has not been injected in the syringe. The first one-way valve can prevent the drug flowing to the connecting tube from flowing back into other syringes after mixing and causing contamination. While avoiding the reflux of the drug, it naturally also avoids the problems of seepage and leakage of the drug at the connection points at both ends of the infusion tube.

[0028] In a preferred embodiment, three infusion tubes and second one-way valves are provided, and three plug-in tubes are also provided; further, when the number of drugs that need to be injected simultaneously exceeds the number of infusion tubes that can be connected to the first one-way valve, the plug-in tube on the first one-way valve can be plugged into the connecting tube of the first one-way valve in another infusion channel expansion head, thereby expanding the infusion channel, increasing the number of drugs that can be injected simultaneously, and adapting to more complex usage environments; similarly, the plug-in tube and the connecting tube on the same first one-way valve are unidirectionally conductive, and the drug flowing into the connecting tube through the plug-in tube cannot flow back into the infusion tube or the plug-in tube.

[0029] In addition, it should be noted that a seal and a sealing groove are provided between the plug-in tube and the connecting tube for sealing the connection between the two. A snap-fit ​​structure may also be additionally provided between the plug-in tube and the connecting tube to make the connection structure more stable. The infusion tube and the first one-way valve may be either fixedly connected or detachably connected, and it is only necessary to ensure the sealing effect.

[0030] In some embodiments, the plug-in tube cover is provided with a sealing cover, the inner wall of the sealing cover is provided with a sealing ring to seal with the inner wall of the plug-in tube, and the outer wall of the sealing cover is provided with an anti-slip column.

[0031] Specifically, the sealing cover can protect the plug-in tube when it is not activated, preventing the external environment from contaminating the plug-in tube; and the setting of the anti-slip column makes it easier to unscrew the sealing cover and then separate it from the plug-in tube, making it convenient to quickly connect the plug-in tube with the connecting tube in other infusion channel expansion heads, thereby improving the expansion assembly efficiency of the infusion channel expansion head.

[0032] In some embodiments, a receiving cavity is formed in an opening on one side of the protective shell, the second one-way valve is fixed in the receiving cavity, and the infusion tube passes through the side wall of the protective shell and is correspondingly connected to the second one-way valve located in the protective shell.

[0033] Specifically, the second one-way valve is detachably connected to the infusion tube, and different numbers of second one-way valves can be arranged in the accommodating cavity according to actual infusion needs, and then the second one-way valve is connected to the end of the infusion tube with one end fixed in the accommodating cavity, and the end of the infusion tube in the accommodating cavity that is not connected to the second one-way valve can be sealed by the cover structure.

[0034] In addition, the accommodating cavity may be coated with a sterilization coating such as silver ions to ensure a sterile environment in the accommodating cavity and further improve the protective effect on the second one-way valve and the infusion tube.

[0035] In some embodiments, a box cover is provided on the opening side of the accommodating cavity, and the box cover is hinged to the protective shell.

[0036] Specifically, a hinge is provided on the bottom front side of the protective shell, and the box cover is hinged to the protective shell through the hinge. Of course, in some other embodiments, the hinge can also be provided on the side of the protective shell to achieve side opening of the box cover.

[0037] In some embodiments, an elastic block is fixedly connected to one side of the box cover away from the hinge, a limiting block is provided on the side of the elastic block facing the outer wall of the protective shell, and a limiting hole is provided on the outer wall of the protective shell corresponding to the limiting block.

[0038] Specifically, by rotating the box cover, the limit block and the limit hole are matched to each other, thereby limiting the position of the box cover and achieving the closure of the accommodating chamber to provide more comprehensive protection for the second one-way valve in the accommodating chamber; in addition, the elastic block is elastic. When the box cover needs to be opened, the limit block can be disengaged from the limit hole by bending the elastic block, thereby opening the box cover.

[0039] In some embodiments, a label plate is provided on the outer wall of the protective shell corresponding to the second one-way valve, and the label plate is used to display information of the replaceable medicine.

[0040] Specifically, by marking the corresponding drug name on the label plate, medical staff can accurately identify the type of drug input by the corresponding second one-way valve, which facilitates the medical staff to accurately perform the drug delivery work.

[0041] In some embodiments, two fixing plates are provided on a side of the protective shell away from the opening of the accommodating cavity. The two fixing plates are arranged opposite to each other, and anti-slip strips are provided on the fixing plates.

[0042] Specifically, when the syringe needs to be connected to the second one-way valve, the second one-way valve installed in the accommodating cavity can be moved by holding the fixing plate to avoid direct contact between the hand and the second one-way valve, thereby avoiding contamination problems that are easily caused when connecting the second one-way valve and the syringe; the two upper and lower fixing plates and the anti-slip strips can make the fixing plate more stable and more labor-saving when being pinched.

[0043] In summary, the embodiment of the utility model provides an infusion channel expansion head, which connects the syringe and the infusion device together through the second one-way valve and the first one-way valve, which can effectively avoid problems such as seepage and leakage caused by drug reflux. At the same time, the first one-way valve is also connected to multiple second one-way valves through the infusion tube, which can realize multi-channel drug administration. When the number of second one-way valves that can be connected to the first one-way valve still cannot meet the drug administration needs, it can also be connected through the plug-in tube on the first one-way valve and the connecting tube on other first one-way valves, so as to expand the number of connectable second one-way valves and thus meet more drug administration needs; and the setting of the protective shell can prevent the hand from directly contacting the second one-way valve when the second one-way valve is connected to the syringe, avoid contamination of the second one-way valve by the hand, and improve the safety of infusion.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An infusion channel expansion head, characterized in that: It includes a first one-way valve, a second one-way valve and a protective device; The first one-way valve includes a connecting tube for connecting to an infusion set and a plurality of plug-in tubes for connecting to connecting tubes of other infusion channel expansion heads; There are multiple second one-way valves; one end of the second one-way valve is connected to the second one-way valve through an infusion tube, and the other end is used to connect a syringe for injecting medicine; the infusion tube and the plug tube are both in one-way communication with the connecting tube; The protection device comprises a protection shell, and the second one-way valve is arranged in the protection shell.

2. The infusion channel expansion head according to claim 1, characterized in that: The plug-in tube cover is provided with a sealing cover, the inner wall of the sealing cover is provided with a sealing ring to seal with the inner wall of the plug-in tube, and the outer wall of the sealing cover is provided with an anti-slip column.

3. The infusion channel expansion head according to claim 1, characterized in that: One side of the protective shell is opened to form a receiving cavity, the second one-way valve is fixed in the receiving cavity, and the infusion tube passes through the side wall of the protective shell and is correspondingly connected to the second one-way valve located in the protective shell.

4. The infusion channel expansion head according to claim 3, characterized in that: A box cover is provided on the opening side of the accommodating cavity, and the box cover is hinged to the protective shell.

5. The infusion channel expansion head according to claim 4, characterized in that: An elastic block is fixedly connected to one side of the box cover away from the hinge, a limiting block is provided on the side of the elastic block facing the outer wall of the protective shell, and a limiting hole is provided on the outer wall of the protective shell corresponding to the limiting block.

6. The infusion channel expansion head according to claim 3, characterized in that: The outer wall of the protective shell is provided with a label plate corresponding to the second one-way valve, and the label plate is used to display the replaceable drug information.

7. The infusion channel expansion head according to claim 3, characterized in that: Two fixing plates are arranged on one side of the protective shell away from the opening of the accommodating cavity. The two fixing plates are arranged opposite to each other and anti-slip strips are arranged on the fixing plates.

Images