Transfusion extension tube with liquid medicine filter

Abstract

The utility model discloses an infusion extension tube with a liquid medicine filter, which relates to the technical field of multi-channel infusion equipment and is characterized in that the infusion extension tube comprises the liquid medicine filter, an infusion hose, a 6% Luer inner cone locking connector and a 6% Luer outer cone locking connector. The liquid medicine filter comprises a liquid inlet end and a liquid outlet end; the infusion hose is connected with the liquid inlet end and the liquid outlet end of the liquid medicine filter; the 6% Luer inner cone locking connector is connected with one end of the infusion hose at the liquid inlet end of the liquid medicine filter, and the 6% Luer inner cone locking connector can be connected with a plurality of groups of administration tee joints and vein infusion apparatuses; the 6% Luer outer cone locking connector is connected with one end of the infusion hose at the liquid outlet end of the filter, and the 6% Luer outer cone locking connector can be connected with a venous indwelling needle. In the process of rapid fluid infusion, blood transfusion and rapid drug administration through the drug administration tee joint, the infusion extension tube with the liquid medicine filter has the advantages of being capable of filtering foreign matter, impurities and air in liquid, preventing the foreign matter and the impurities from entering blood to cause injury to a human body and preventing air from entering blood to form air embolism.

Description

Technical Field

[0001] This utility model relates to the field of multi-channel infusion equipment, specifically to an infusion extension tube with a drug solution filter. Background Technology

[0002] In current clinical intravenous infusion administration, a three-way valve is installed at the tip of the intravenous needle assembly to achieve rapid fluid and drug administration through multiple channels. This reduces the distance the drug travels in the tubing, allowing the target drug concentration to be reached more quickly, and rapidly replenishing blood and fluids to meet the needs of patients in treatment and emergency care. However, the fluids, blood, or drugs administered through the three-way valve are not filtered, posing a risk of impurities, foreign objects, or air entering the body. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an infusion extension tube structure with a drug solution filter to solve the problems mentioned in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An infusion extension tube with a drug solution filter, the infusion extension tube comprising: a drug solution filter, an infusion tubing, a 6% Luer inner conical locking connector, and a 6% Luer outer conical locking connector;

[0006] The drug solution filter includes an inlet end and an outlet end;

[0007] The infusion tubing is connected to the inlet and outlet of the drug solution filter;

[0008] The 6% Luer conical locking connector is connected to one end of the infusion tubing at the inlet of the drug solution filter. The 6% Luer conical locking connector can be connected to multiple sets of infusion three-way valves and intravenous infusion sets.

[0009] The 6% Luer external conical locking connector is connected to one end of the infusion tubing at the outlet of the drug solution filter, and the 6% Luer external conical locking connector can be connected to an indwelling intravenous catheter.

[0010] As a further embodiment of this utility model, the drug filter includes a housing, and an infusion set filter membrane is disposed inside the housing. The infusion set filter membrane divides the inner cavity of the housing into a mutually isolated front cavity and a rear cavity.

[0011] As a further embodiment of this utility model, the outer shell of the medicine filter is provided with an inlet end and an outlet end, wherein...

[0012] The inlet end is connected to the front chamber, and the outlet end is connected to the rear chamber. Both the inlet and outlet ends are connected by infusion tubing.

[0013] As a further embodiment of this utility model, the other end of the infusion hose at the inlet end of the drug filter is connected to a 6% Luer inner conical locking connector.

[0014] As a further embodiment of this utility model, the other end of the infusion hose at the outlet of the drug filter is connected to a 6% Luer external conical locking connector.

[0015] In summary, this utility model has the following advantages compared with the prior art:

[0016] The method employed in this invention involves adding a drug solution filter to the infusion extension tube. This effectively filters foreign objects, impurities, and air from the liquid and drug solution during rapid blood transfusion, rapid fluid replacement, and rapid drug administration, preventing foreign objects and impurities from entering the bloodstream and preventing air from entering the bloodstream and forming air embolism. Attached Figure Description

[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the medicine filter in an embodiment of the utility model.

[0020] Figure 3 As an embodiment of the utility model Figure 2 Partial schematic diagram of the vent.

[0021] Figure 4 As an embodiment of the utility model Figure 3 A magnified view of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the 6% Luer inner cone locking joint in an embodiment of the utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the 6% Luer external cone locking joint in the embodiment of the utility model.

[0024] Reference numerals: 1-6% Luer inner conical locking connector, 2-infusion tubing, 3-drug filter, 4-infusion tubing, 5-6% Luer outer conical locking connector, 3.1-drug filter inlet end, 3.2-drug filter front chamber, 3.3 drug filter front chamber outer shell, 3.4-drug filter front chamber outer shell vent hole, 3.5-drug filter membrane, 3.6-drug filter rear chamber, 3.7-drug filter rear chamber outer shell, 3.8-drug filter rear chamber outer shell inner wall support block, 3.9-drug filter outlet end, 3.10-drug filter front chamber outer shell inner wall stepped groove, 3.11-drug filter vent membrane. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] In one embodiment, an infusion extension tube structure with a drug solution filter is shown in Figures 1 to 6. The infusion extension tube 1-5 includes: a 6% Luer inner conical locking connector 1, an infusion tubing 2, a drug solution filter 3, an infusion tubing 4, and a 6% Luer outer conical locking connector 5.

[0028] The liquid filter 3 includes an inlet end 3.1 and an outlet end 3.9;

[0029] The infusion tubing 2 and 4 are connected to the inlet end 3.1 and outlet end 3.9 of the drug solution filter 3;

[0030] The 6% Luer conical locking connector 1 is connected to one end of the inlet end 3.1 of the drug solution filter 3 and the infusion tubing 2. The 6% Luer conical locking connector 1 can be connected to multiple sets of drug delivery three-way valves and intravenous infusion sets.

[0031] The 6% Luer external cone locking connector 5 is connected to one end of the infusion tubing 4 at the outlet end 3.9 of the filter 3. The 6% Luer external cone locking connector 5 can be connected to an indwelling intravenous catheter.

[0032] Further, referring to Figures 2-4, the drug solution filter includes a shell consisting of a front cover 3.3 and a rear cover 3.7, which are connected in a conventional manner. A filter membrane 3.5 is installed between the stepped surfaces at the connection point, thereby forming a front cavity 3.2 between the front cover 3.3 and the filter membrane 3.5, and a rear cavity 3.6 between the rear cover 3.7 and the filter membrane 3.5. The front cavity 3.2 and the rear cavity 3.6 are isolated from each other by the filter membrane 3.5. An inlet 3.1 communicating with the front cavity 3.2 is provided on the front cover 3.3 on one side of the front cavity 3.2. Under normal conditions, the inlet 3.1 is connected to the infusion tubing 2. On the rear cover 3.7 of this embodiment, an outlet 3.9 is provided on the side away from the inlet 3.1. Under normal conditions, the outlet 3.9 is connected to the infusion tubing 4.

[0033] Furthermore, referring to Figures 2-4, a support member is provided on the inner surface of the rear cover 3.7 of the medicine filter. The support member is at least one set of support blocks 3.8 integral with the rear cover 3.7. The sets of support blocks 3.8 are arranged along concentric circles spaced apart from each other, and a liquid passage gap is provided between the support blocks 3.8 in the same set. In this embodiment, two sets of support blocks 3.8 are provided. A groove is provided on the inner surface of the rear cover 3.7 between the outer set of support blocks 3.8 and the liquid outlet 3.9. This makes the liquid outlet 3.9 easier to process and facilitates the flow of medicine.

[0034] Furthermore, referring to Figures 2 to 4, when the filter membrane 3.5 of the liquid medicine filter is in a planar state, there is a gap between the filter membrane 3.5 and each support member, that is, between it and each support block 3.8, so that the filter membrane 3.5 has a certain amount of room to move.

[0035] Furthermore, referring to Figures 2-4, the inner surface of the front cover 3.3 of the liquid filter is provided with a set of progressively deeper annular stepped grooves 3.10, and an exhaust hole 3.4 communicating with the outside is provided at the bottom of the stepped grooves 3.10. In this embodiment, three stepped grooves 3.10 are provided, forming two stepped surfaces, and an air-permeable membrane 3.11 is fixed on the innermost stepped surface by means of hot-melt welding or other methods. As needed, an air-permeable membrane 3.11 can be provided on each stepped surface. Through this structure, the internal cavity of this embodiment can be vented.

[0036] In this embodiment, when the infused liquid, blood, and added medicine are mixed with foreign matter, impurities, and air during use, this embodiment is selected for use. The foreign matter and impurities mixed in the liquid cannot pass through the filter membrane 3.5, and the mixed gas can be discharged through the gas membrane 3.11 and the exhaust port 3.4.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solution infusion extension tube with a solution filter, the solution infusion extension tube comprising: The utility model relates to a medicine liquid filter, infusion hose, 6% luer inner conical locking connector, 6% luer outer conical locking connector, characterized in that: The medicine liquid filter comprises a liquid inlet end and a liquid outlet end. The infusion hose is connected to the liquid inlet end and the liquid outlet end of the medicine liquid filter. The 6% luer inner conical locking connector is connected to one end of the infusion hose connected to the liquid inlet end of the medicine liquid filter, and the 6% luer inner conical locking connector can be connected to multiple groups of three-way connectors for infusion and intravenous infusion devices. The 6% luer outer conical locking connector is connected to one end of the infusion hose connected to the liquid outlet end of the medicine liquid filter, and the 6% luer outer conical locking connector can be connected to an intravenous indwelling needle.

2. The infusion extension tube with a liquid medicine filter according to claim 1, wherein, The medicine liquid filter comprises a shell, an infusion device filter membrane is arranged in the shell, and the infusion device filter membrane divides the inner cavity of the shell into a front cavity and a rear cavity which are isolated from each other.

3. The infusion extension tube with a liquid medicine filter according to claim 2, characterized by, The shell of the medicine liquid filter is provided with a liquid inlet end and a liquid outlet end, the liquid inlet end communicates with the front cavity, the liquid outlet end communicates with the rear cavity, and the liquid inlet end and the liquid outlet end are both connected to an infusion hose.

4. The infusion extension tube with a liquid medicine filter according to claim 3, wherein The other end of the infusion hose connected to the liquid inlet end of the medicine liquid filter is connected to the 6% luer inner conical locking connector.

5. The infusion extension tube with a liquid medicine filter according to claim 3, wherein The other end of the infusion hose connected to the liquid outlet end of the medicine liquid filter is connected to the 6% luer outer conical locking connector.

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