CN219185308U

CN219185308U - Precise filtering infusion apparatus with precise filtering needleless injection piece

Info

Publication number: CN219185308U
Application number: CN202223023670.4U
Authority: CN
Inventors: 任赛彬; 王瑞祥; 宋腾腾
Original assignee: Jiakang Medical Equipment Qingdao Co ltd
Current assignee: Jiakang Medical Equipment Qingdao Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-06-16
Anticipated expiration: 2032-11-17

Abstract

The utility model relates to the technical field of medical appliances, and particularly discloses an infusion apparatus with a precise-filtration needleless injection part. The precise filtration needleless injection component comprises a filter element, which can effectively filter the added liquid medicine. The utility model is applied to the intravenous infusion treatment process, effectively avoids the infusion particle pollution caused by dosing, and ensures the life safety of human bodies. In the medicine adding process of medical staff, because the medicine adding port is designed as a needleless connector, a needle is not required to be used, and an injector or other infusion devices are matched with the precisely filtered needleless injection part, so that infusion particles are prevented from being mixed into liquid medicine by repeatedly puncturing the medicine bottle, the occurrence of infusion particle pollution is effectively avoided, and the health and safety of patients are protected.

Description

Precise filtering infusion apparatus with precise filtering needleless injection piece

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a precise filtering transfusion system with a precise filtering needleless injection piece.

Background

Intravenous infusion therapy is one of the most commonly used therapeutic care means for clinical care, and the quality of infusion therapy directly affects the rehabilitation time of patients. In the intravenous infusion treatment process, medical staff often has a medicine adding operation process, and infusion particles possibly mixed into the medicine liquid in the process, so that infusion particle pollution is caused. The infusion particles refer to non-metabolic particle impurities in the input liquid, and the infusion particle pollution refers to the process that the infusion particles enter the human body along with the liquid medicine in the infusion process, so that the human body is seriously harmed. With the increasing importance of the state on the management of infusion particles, the state administration supervision and administration continuously requires improvement and perfection of the infusion set.

At present, although the existing needleless dosing precise filtration transfusion device adopts a needleless dosing mode, the injection part has no filtration function, so that the risk of mixing transfusion particles into liquid medicine still exists in the dosing process. For this purpose, we propose an infusion set with a precision-filtered needleless injection.

Disclosure of Invention

The utility model aims to provide a precise filtering infusion set with a precise filtering needleless injection piece, which can effectively solve the problem that infusion particles are mixed into liquid medicine to enter a human body during intravenous infusion treatment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the device comprises a plurality of guide pipes, wherein one end of a first guide pipe is connected with a puncture outfit, an air filter is connected to the puncture outfit, and the other end of the first guide pipe is connected with a dropping funnel; the lower end of the dropping funnel is connected with one end of a second guide pipe, and the other end of the second guide pipe is connected with a precision filter; the lower end of the precise filter is connected with one end of a third conduit, an adjustor is arranged on the third conduit, the other end of the third conduit is connected with an injection piece base, the injection piece base is provided with a first channel opening, a second channel opening and a third channel opening which are communicated with each other, the first channel opening is communicated with the other end of the third conduit, a first cavity is formed in the edge position of the second channel opening, the third channel opening is communicated with one end of a fourth conduit, a filter element is arranged in the first cavity, the upper end of the injection piece base is connected with an injection piece upper cover, the injection piece upper cover is provided with a second cavity which is internally and externally communicated, and a valve core is arranged in the second cavity; the outer end of the injection piece upper cover is connected with a first connector at the edge position of the second cavity, the other end of the fourth catheter is connected with one end of a fifth catheter through the second connector, and the other end of the fifth catheter is connected with an infusion needle. Preferably, the injection piece base and the injection piece upper cover are both formed by injection molding of ABS materials.

Preferably, the valve core is made of elastic materials, a hollow cavity is formed in the inner end of the valve core, a notch is formed in the outer end of the valve core, and the notch is communicated with the hollow cavity.

Preferably, the elastic material is provided as a liquid silicone material.

Preferably, the injection piece base and the injection piece upper cover are both formed by injection molding of ABS materials.

Preferably, the contact surface of the valve core and the upper cover of the injection part is in interference fit.

Preferably, the filter element is sintered and formed by ultra-high molecular weight polyethylene.

Preferably, the filter pore size of the filter element has three sizes of 2um, 3um and 5 um.

Preferably, the first connector is provided as a luer connector.

Preferably, the second connector is provided as a luer connector.

Preferably, the first catheter is provided with a liquid stopping clamp.

Compared with the prior art, the utility model has the following beneficial effects:

1. as described above, the utility model designs an infusion apparatus with a precise filtering needleless injection, which is applied to the intravenous infusion treatment process, and effectively avoids infusion particle pollution caused by dosing so as to ensure the life safety of human bodies.

2. In the medicine adding process, the medicine adding port is designed into a needleless connector mode, so that a needle is not required, infusion particles generated by repeated puncture are prevented from being mixed into liquid medicine, the infusion particle pollution is effectively avoided, and the condition that medical staff is punctured by the needle is effectively avoided.

3. In the process of adding medicine, the medicine liquid enters the cavity of the injection member through the medicine adding port, is effectively filtered through the built-in filter element, and is input into a human body, so that the whole transfusion process becomes safer, the aim of protecting the safety of a patient is achieved, and unnecessary troubles are reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the device of the present utility model;

FIG. 2 is a schematic view of the partial structure at A in FIG. 1;

FIG. 3 is an enlarged view of a partial structure at B of FIG. 2;

in the figure, the device comprises a first conduit 11-a second conduit 12-a third conduit 13-a fourth conduit 14-a fifth conduit 15-a puncture outfit 2-an air filter 3-an air filter 4-a liquid stopping clamp 5-a drip funnel 6-a precision filter 7-a regulator 8-a precision filtration needleless injection piece 81-an injection piece base 82-a filter element 83-an injection piece upper cover 84-a valve core 85-a first joint 86-a first channel opening 87-a second channel opening 88-a third channel opening 9-a second joint 10-an infusion needle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.

Example 1

Referring to fig. 1 to 3, an infusion apparatus with a precise filtration needleless injector comprises a plurality of catheters, wherein one end of a first catheter 11 is connected with a puncture outfit 2, the puncture outfit 2 is connected with an air filter 3 for filtering air, a liquid stopping clamp 4 is arranged on the first catheter 11, the liquid stopping clamp 4 can be used for stopping infusion, and the other end of the first catheter 11 is connected with a dropping funnel 5; the lower end of the dropping funnel 5 is connected with one end of a second conduit 12, and the other end of the second conduit 12 is connected with a precision filter 6 which is used for filtering infusion particles; the lower end of the precise filter 6 is connected with one end of a third conduit 13, and the third conduit 13 is provided with a regulator 7 for regulating the infusion speed.

The other end of the third conduit 13 is connected with an injection member base 81, the injection member base 81 is provided with a first passage port 86, a second passage port 87 and a third passage port 88 which are mutually communicated, the first passage port 86 is communicated with one end of the third conduit 13, a first cavity is formed in the edge position of the second passage port 87, the third passage port 88 is communicated with one end of the fourth conduit 14, a filter element 82 is arranged in the first cavity, the filter element 82 is formed by sintering ultra-high molecular weight polyethylene, the structure is compact, firm, light, nontoxic and tasteless, the acid-base solvent has good corrosion resistance, the filtering efficiency is high, the filtering aperture of the filter element 82 has three types of 2, 3 and 5um, a plurality of specifications are provided for clinical selection, infusion particles mixed by adding medicines can be effectively filtered, and the occurrence of infusion particle pollution is effectively avoided.

The injection piece upper cover 83 is connected to the injection piece base 81 upper end, the injection piece base 81 and the injection piece upper cover 83 are both made of ABS materials through injection molding, and are connected through ultrasonic welding, so that the ultrasonic welding speed is high, the strength is high, the sealing performance is good, the cost is low, the injection piece upper cover is clean and pollution-free, a workpiece cannot be damaged, and the whole welding process is stable, safe and environment-friendly.

The injection part upper cover 83 is provided with a second cavity which is internally and externally communicated, a valve core 84 is arranged in the second cavity, the valve core 84 is formed by injection molding of liquid silica gel material, and the liquid silica gel has excellent tearing resistance, rebound resilience, thermal stability, heat resistance and ageing resistance; the inner end of the valve core is provided with a hollow cavity, the outer end of the valve core is provided with a notch, the notch is communicated with the hollow cavity, when infusion and medicine adding are needed, the syringe or other infusion apparatus is matched with the upper cover 83 of the injection part, the valve core 84 is extruded, the notch is opened, the notch is communicated with the hollow cavity to form a channel, and medicine can be added into the channel; the valve core 84 is in interference fit with the injection upper cover 83, is firmly connected, and plays a role in sealing.

The outer end of injection upper cover 83 is connected with first joint 85 in the border position of second die cavity, first joint 85 designs to needleless joint, and needleless joint sets up to luer, connects more firmly, accords with ISO 80369-7 standard, need not to use the syringe needle, has both avoided medical personnel to be pricked by the syringe needle, prevents again that the repeated puncture from leading to the emergence of infusion pollution.

The other end of the fourth conduit 14 is connected with one end of a fifth conduit 15 through a second joint 9, and the other end of the fifth conduit is connected with an infusion needle 10 for puncturing a vein of a human body and delivering liquid medicine. The second connector 9 is a luer connector, so that the connection is more stable.

The foregoing description is, of course, merely illustrative of preferred embodiments of the present utility model, and it should be understood that the present utility model is not limited to the above-described embodiments, but is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present utility model as defined by the appended claims.

Claims

1. A precise filtration transfusion system with a precise filtration needleless injection piece, which is characterized in that: the device comprises a plurality of guide pipes, wherein one end of a first guide pipe is connected with a puncture outfit, an air filter is connected to the puncture outfit, and the other end of the first guide pipe is connected with a dropping funnel; the lower end of the dropping funnel is connected with one end of a second guide pipe, and the other end of the second guide pipe is connected with a precision filter; the lower end of the precise filter is connected with one end of a third conduit, an adjustor is arranged on the third conduit, the other end of the third conduit is connected with an injection piece base, the injection piece base is provided with a first channel opening, a second channel opening and a third channel opening which are communicated with each other, the first channel opening is communicated with the other end of the third conduit, a first cavity is formed in the edge position of the second channel opening, the third channel opening is communicated with one end of a fourth conduit, a filter element is arranged in the first cavity, the upper end of the injection piece base is connected with an injection piece upper cover, the injection piece upper cover is provided with a second cavity which is internally and externally communicated, and a valve core is arranged in the second cavity; the outer end of the injection piece upper cover is connected with a first connector at the edge position of the second cavity, the other end of the fourth catheter is connected with one end of a fifth catheter through the second connector, and the other end of the fifth catheter is connected with an infusion needle.

2. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the valve core is made of elastic materials, a hollow cavity is formed in the inner end of the valve core, a notch is formed in the outer end of the valve core, and the notch is communicated with the hollow cavity.

3. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 2 and wherein: the elastic material is set as liquid silica gel material.

4. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the injection piece base and the injection piece upper cover are both formed by injection molding of ABS materials.

5. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the contact surface of the valve core and the upper cover of the injection part is in interference fit.

6. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the filter element is formed by sintering ultra-high molecular weight polyethylene.

7. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the filter pore diameter of the filter element has three sizes of 2um, 3um and 5 um.

8. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the first fitting is configured as a luer fitting.

9. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the second connector is configured as a luer connector.

10. A precision filtration infusion set with precision filtration needleless injection as claimed in claim 1 and wherein: the first catheter is provided with a liquid stopping clamp.