CN2119928U - Keeping type intravenous infusion device - Google Patents

Abstract

It is a keeping type intravenous infusion device which is characterized in that a needle core of its infusion needle is sleeved with a micro-catheter that is connected with a connecting tube as integration, and it makes use of a metal needle core to guide to implant the micro-catheter into the vein. It can make the micro-catheter be reserved in the vein after withdrawing the needle core. There is no need to make another punctuation in the fluid infusion every time, it can be repeated many times, and there are a couple of offset interfaces on the connecting tube, which can simultaneously input a plurality of kinds of different physic liquors, obtaining the purpose of repeated fluid infusion by puncturing one time, therefore, reduces the pain of the patients and the labor intensity of the medical personnel.

Description

Keeping type intravenous infusion device

This utility model belongs to the improvement of medical infusion syringe needle.

The transfusion device that present hospital uses to patient infusion includes infusion bottle, tube for transfusion and infusion needle.During use syringe needle is thrust human vein, just can infuse after fixing, each transfusion finishes and need extract syringe needle.Its shortcoming is all will carry out a venipuncture for the each transfusion of same patient, and all need shift one's position at every turn, for transfusion patient often, the acupuncture points of transfusion part is too many, very easily destroy end vein blood vessel slightly, cause later puncture difficulty, increase patient's misery, especially used the fear of psychology for child's puncture repeatedly.The purpose of this utility model is to improve the syringe needle part of transfusion device, only does one-time puncture in infusion treatment, then can repeatedly infuse, and overcoming above-mentioned shortcoming, and can import two kinds of different medicinal liquids simultaneously, tires with raising.

Accompanying drawing 1 is the bulk-breaking structural representation of the designed infusion needle of this utility model.Accompanying drawing 2 is the combinative structure sketch map of infusion needle, and 1 is sheath among the figure, and 2 is microtubular, and 3 is connection tube, and 4 is interface, and 5 is interface, and 6 is nook closing member, and 7 is needle handle, and 8 is interface, and 9 is access flap.

Of the present utility model being characterized as, the nook closing member front end of hollow is the inclined-plane, and end has the needle handle that is connected as a single entity, and the interior passage of the passage in the needle handle and nook closing member communicates, and the needle handle end interface can have access flap; Be with microtubular on the nook closing member, the front end of microtubular exposes the inclined-plane of nook closing member, and there is the connection tube that is connected as a single entity the rear end of microtubular, and the interface at connection tube rear portion (4) can closely be enclosed within the front end of needle handle, and connection tube can be straight tube, tee T, four-way pipe; And having sheath can be enclosed within the nook closing member microtubular outward to play airtight effect, the one end is what seal; Each interface can both with the tube for transfusion close proximity, and each interface all has access flap.The using method of the hold mode infusion needle that this utility model is designed is: take down sheath, hold needle handle, the nook closing member puncture that is with microtubular is entered vein, after seeing blood back, connect tube for transfusion in the interface of needle handle, the fixed needle part promptly begins transfusion, when transfusion finishes, extract together with needle handle and nook closing member, build the interface of connection tube, microtubular is retained in intravenous, only need open access flap when infusing next time, connecting tube for transfusion can infuse; Certainly when the first time, vein puncture was successful, needle handle and nook closing member can be extracted (keeping microtubular) at intravenous, directly connect the interface of tube for transfusion in connection tube; When needs are imported several medicinal liquid simultaneously, can open the interface (as among the figure 5) of collateral branch on the connection tube, transfusion when carrying out several medicinal liquid; For preventing blood coagulation, (remove the 1st time) before each transfusion back or the transfusion, can drip a little heparin at opened seam.Microtubular can keep 3-7 days at intravenous, and transfusion is just extracted together with microtubular after finishing the last time.The making material of hold mode infusion needle removes nook closing member and adopts metal, and all the other can select medical non-toxic plastic or other high molecular polymers for use.

By as can be seen above-mentioned, the utlity model has following advantage: (1), destructive minimum to blood vessel, after adopting this infusion needle one-time puncture, the microtubular of implanting can keep 3-7 days at intravenous, had realized one-time puncture, the purpose of repeatedly infusing, avoid repeatedly puncturing and destroy vein blood vessel, reduced patient's misery.(2) make things convenient for patient,, therefore can suspend transfusion midway and movable in transfusion because microtubular and tube for transfusion active is connected, convenient disassembly, as upside institute etc., movable intact after, can continue easily again to infuse.(3) can simultaneously or import several different medicinal liquids in succession, can avoid several drugs is mixed transfusion, and make the reduction of tiring of medicine.(4) alleviate medical personnel's labor intensity.(5) with low cost, can match with existing transfusion device, and save the usage quantity of infusion needle.

Claims (1)

1, a kind of medical Transfusion device, include infusion bottle, tube for transfusion and infusion needle, of the present utility model being characterised in that: the front end of the hollow nook closing member of its infusion needle is the inclined-plane, end has the needle handle that is connected as a single entity, the interior passage of passage in the needle handle and nook closing member communicates, the needle handle end interface can have access flap, be with microtubular on the nook closing member, the front end of microtubular exposes the inclined-plane of nook closing member, there is the connection tube that is connected as a single entity the rear end of microtubular, the interface of connection tube rear end can closely be enclosed within the front end of needle handle, connection tube can be a straight tube, or tee T, or four-way pipe, be enclosed within outer sheath one end of nook closing member microtubular for sealing, each interface can both with the tube for transfusion close proximity, each interface all can have access flap.

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