CN203400319U - Disposable infusion bag with needleless connector - Google Patents

Abstract

The utility model discloses a disposable infusion bag with a needleless connector. The disposable infusion bag with the needleless connector comprises an infusion bag body, an infusion bag sealing cover and the needleless connector. The infusion bag sealing cover comprises an upper cover and a lower cover, wherein the upper cover is connected with the lower cover; the joints of the upper cover and the lower cover are respectively provided with a buckle, wherein the buckles are in interference fit with each other, and an opening of the lower cover is provided with a pull ring. The needleless connector is fixed to the inside of the upper cover and the inside of the lower cover, wherein a thread is arranged on the outer wall of the lower end of the needleless connector, and a rubber plug is arranged inside the needleless connector. The disposable infusion bag with the needleless connector is simple in structure, the buckles which are in interference fit with each other and are arranged on the joints of the upper cover and the lower cover enable the upper cover and the lower cover to be completely sealed, and therefore a bacterium blocking function is achieved. When the disposable infusion bag with the needleless connector is used, the pull ring is pulled open so that the needleless connector can be exposed, a Ruhr conical head of an infusion set extrudes the rubber plug inside the needleless connector to form a liquid channel, liquid medicine flows out of the bag body through the liquid channel, a bottle plug puncture device is not needed for puncturing the rubber plug, it is ensured that the liquid medicine is not contaminated, blocking does not occur either, and therefore the disposable infusion bag with the needleless connector is convenient and reliable to operate.

Description

Disposable use needleless joint transfusion bag

Technical field

This utility model relates to medical instruments field, specifically a kind of disposable use needleless joint transfusion bag.

Background technology

Disposable infusion bag product has that volume is little, lightweight, sterilization is convenient, safe and reliable, preserves convenient transportation, without the air inlet device advantage such as can infuse, belongs to modern medicine industry new product.At present, the traditional infusion bag using on market, infusion connector adopts common plug sealing, there is following problem in it: during use, the bottle plug puncture unit of transfusion device need to be punctured to seal rubber plug, making the inlet opening of bottle plug puncture unit by seal rubber plug, enter bag completely could infuse, and piercing process need be used larger external force puncture with medical personnel, also may produce and fall to cutting, pollute medicinal liquid, stop up inlet opening.

Utility model content

The shortcoming existing for above prior art, the purpose of this utility model be to provide a kind of simple in structure, easy to operate, without using bottle plug puncture unit to puncture the disposable use needleless joint transfusion bag of plug.

The technical solution of the utility model is as follows:

A kind of disposable use needleless joint transfusion bag, include bag body of infusion bag, transfusion bag seal cover and needleless joint, described transfusion bag seal cover includes the upper and lower cover being connected, it is characterized in that: the connecting portion of described upper and lower cover has respectively the snap close of interference fit, the oral area of described lower cover has pull-tab, described needleless joint is fixed on the inside of upper and lower cover, and the outer wall of needleless joint lower end is provided with screw thread, and the inside of needleless joint is provided with plug.

Described disposable use needleless joint transfusion bag, is characterized in that: the lower end inwall of described needleless joint is provided with ring-shaped step, and described plug is stuck on ring-shaped step.

The beneficial effects of the utility model:

This utility model is simple in structure, on, the snap close of the connecting portion interference fit of lower cover, upper and lower covers is sealed completely, played the effect of resistance bacterium, during use, pull open pull-tab, expose needleless joint, transfusion device with luer lock joint is screwed and is connected with needleless joint, threaded engagement on the screw thread of transfusion device and needleless joint lower end outer wall, play locking action, the plug of the conehead extruding needleless joint inside, Rule of transfusion device, form fluid passage, medicinal liquid is exported by passage from bag, without using bottle plug puncture unit to puncture plug, guaranteed the not contaminated medicinal liquid of medicinal liquid, can not produce obstruction yet, easy to operate, reliably.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation.

Fig. 2 is the explosive view of A part-structure in Fig. 1.

Fig. 3 is enforcement illustration of the present utility model, and in figure, direction shown in arrow is that medicinal liquid flows to.

The specific embodiment

Referring to Fig. 1,2, a kind of disposable use needleless joint transfusion bag, include bag body ofinfusion bag 1, transfusion bag seal cover 2 andneedleless joint 3, transfusion bag seal cover includes the upper andlower cover 21,22 being connected, the connecting portion of upper andlower cover 21,22 has respectively the snap close 23,24 of interference fit, and the oral area oflower cover 22 has pull-tab 25, andneedleless joint 3 is fixed on the inside of upper andlower cover 21,22, the outer wall ofneedleless joint 3 lower ends is provided withscrew thread 31, and the inside ofneedleless joint 3 is provided withplug 4.

In this utility model, the lower end inwall ofneedleless joint 3 is provided with ring-shaped step, andplug 4 is stuck on ring-shaped step.

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1,2,3, during use, pull open pull-tab 25, exposeneedleless joint 3, the transfusion device with luer lock joint 5 is screwed and is connected withneedleless joint 3, theplug 4 of female Luer extrudingneedleless joint 3 inside of transfusion device 5, expose fluid passage, on the screw thread of transfusion device 5 andneedleless joint 3,screw thread 31 engagements, play locking action, overall process, without the external force with larger, only need screw by very little power.

When transfusion finishes, only need unscrew transfusion device 5, transfusion device is separated withneedleless joint 3, and theplug 4 ofneedleless joint 3 inside has very strong elasticity, under self elastic reaction, can recover deformation, plays sealing function.

Except above case study on implementation, this utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation form, all drop on the protection domain of this utility model requirement.

Claims (2)

1. a disposable use needleless joint transfusion bag, include bag body of infusion bag, transfusion bag seal cover and needleless joint, described transfusion bag seal cover includes the upper and lower cover being connected, it is characterized in that: the connecting portion of described upper and lower cover has respectively the snap close of interference fit, the oral area of described lower cover has pull-tab, described needleless joint is fixed on the inside of upper and lower cover, and the outer wall of needleless joint lower end is provided with screw thread, and the inside of needleless joint is provided with plug.

2. disposable use needleless joint transfusion bag according to claim 1, is characterized in that: the lower end inwall of described needleless joint is provided with ring-shaped step, and described plug is stuck on ring-shaped step.

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