CN203524804U

CN203524804U - Accurate proportioning device for drug administration of animal vein puncturing

Info

Publication number: CN203524804U
Application number: CN201320402449.1U
Authority: CN
Inventors: 王薇; 宋红梅; 连冬梅
Original assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Current assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Priority date: 2013-07-08
Filing date: 2013-07-08
Publication date: 2014-04-09
Anticipated expiration: 2023-07-08

Abstract

The utility model provides an accurate proportioning device for drug administration of animal vein puncturing. The accurate proportioning device comprises a syringe needle part, having a syringe needle, a syringe needle protection sleeve, a needle handle, and a syringe needle flexible pipe; a three-way joint part, having a body which is a three-way flexible pipe having three terminals, wherein a first terminal is connected to a first flexible pipe of the three-way flexible pipe; a second terminal is connected to a second flexible pipe of the three-way flexible pipe; a third terminal is connected to a third flexible pipe of the three-way flexible pipe; the first terminal is used for connecting the syringe needle flexible pipe of the syringe needle part; the second terminal and the third terminal are used for connecting a syringe; the second flexible pipe and the third flexible pipe are respectively provided with a flow control pulley. The accurate proportioning device also comprises two syringes with scales for injecting liquid.

Description

Animal venipuncture administration accurate quantification device

Technical field

This utility model relates to a kind of animal venipuncture administration accurate quantification device.

Background technology

When carrying out zoopery or give treatment of animals, often use venipuncture administration or get blood technology, conventionally used is directly administration or get blood of disposable syringe (seeing accompanying drawing 1).For smaller animal, as rat, mice trailing edge vein, rabbit auricular vein etc., because blood vessel is tiny, directly with syringe, carry out Puncture difficulty higher, often can cause blood vessel to be pricked or the entry needle situation of intravasation not, and this situation is without any sign, while continuing administration, can cause following consequence: one, medicinal liquid seepage (not intravasation), has changed route of administration; Two, dosage mistake, causes experimental error; Three, precious drug waste; Four, some specific drugs can cause laboratory animal to scrap (while carrying out nephropathy model modeling as rat trailing edge intravenous injection doxorubicin, if medicine is direct intravasation and occur Seepage, can cause rat tail to come off, cannot again pass through trailing edge intravenous injection other drug, affecting subsequent experimental carries out) even affect the collimation of whole experiment, cause the waste of animal data by the gross, need to again purchase animal by the gross and test, serious waste time and money.This kind of method entry needle is difficult for fixing in addition, easily comes off, and has toxicant meeting pollution test stand and then affects operator safety.

Utility model content

For above problem, the utility model proposes a kind of animal venipuncture administration accurate quantification device, described device comprises: syringe needle part, it comprises syringe needle, protective sleeve of syringe needle, needle handle, syringe needle flexible pipe; With trident interface section, its main body is the trident flexible pipe with three ports, wherein the first port connects the first flexible pipe of trident flexible pipe, the second port connects the second flexible pipe of trident flexible pipe, the 3rd port connects the 3rd flexible pipe of trident flexible pipe, the first port is for the syringe needle flexible pipe of connecting needle part, and the second port is used for being connected syringe with the 3rd port, on the second flexible pipe and the 3rd flexible pipe, is provided with flow-control pulley; And two syringes with scale, for passing through the second port and the 3rd port filling liquid.

By above technical scheme, can accurately judge whether entry needle is positioned at blood vessel and then determines whether to continue to push away medicine; Can make syringe needle be easy in blood vessel fixing, make whole injection process safer; Can make experiment more accurate by accurate quantification dosage, and avoid drug waste; Can avoid drug leakage, the complete intravasation of guarantee test medicine.

According to the detailed description to this utility model specific embodiment by reference to the accompanying drawings below, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.

Accompanying drawing explanation

Hereinafter in exemplary and nonrestrictive mode, describe specific embodiment of the utility model in detail with reference to the accompanying drawings.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:

Accompanying drawing 1 is with disposable syringe venipuncture administration schematic diagram in prior art;

Accompanying drawing 2 is the syringe needle part schematic diagram of this utility model animal venipuncture administration accurate quantification device;

Accompanying drawing 3 is the trident interface section schematic diagram of this utility model animal venipuncture administration accurate quantification device;

Accompanying drawing 4 is the syringe schematic diagram of this utility model animal venipuncture administration accurate quantification device.

The specific embodiment

As shown in Figure 2-4, device of the present utility model is divided into following components: (1) syringe needle part, comprises syringe needle, protective sleeve of syringe needle, needle handle, syringe needle flexible pipe (be similar to scalp acupuncture, but flexible pipe being shorter than scalp acupuncture).2) trident interface section, its main body is three sections of flexible pipes that trident connects, and has A, B, tri-ports of C.The A port connected with the first flexible pipe is connected with the syringe needle flexible pipe coupling of syringe needle part.On second, third flexible pipe being connected with B, C port, respectively there is a flow-control pulley.B, two ports of C can be connected with syringe especially disposable syringe, and B, C port have sealing cap for convenience detach in addition.(3) two disposable syringes of first, the second with scale that mate respectively with B, C end.Range can be changed as required.All jointings are pressure jointing.

If need to give multiple medicine, can be designed to the more interface (being called multi-fork interface in this utility model) of multi-fork (being greater than 3 forks).This is used in once-through operation and to experimental animal, injects multi-medicament in short period interval.Simultaneously also can be for passing through a plurality of prong multiple dosings.For example, if the impact of observation multi-medicament on experimental animal needs in prior art repeatedly experimental animal to be punctured, because puncture interval is long and wayward, this may cause final experimental data to have deviation due to puncture interval.And adopt multi-fork Interface design of the present utility model, and only need carry out one-time puncture to laboratory animal, this has just been avoided the interval that repeatedly puncture causes, thereby can accurately control administration time or accurately blood drawing.Preferably, for fear of blood coagulation blocking device, in device, to add anticoagulant.

This device using method is as follows:

1, first syringe is drawn normal saline, and evacuation of air is standby.

2, second syringe is drawn trial drug, and evacuation of air is standby.

3, the syringe needle flexible pipe of syringe needle part is connected with A port, open B port sealing cap, first syringe (inside having normal saline) is connected with B port, keeps C port sealing cap tight, the flow-control pulley on second, third flexible pipe that B, C two-port are connected reaches maximum.Promote first syringe and make normal saline be full of whole trident interface and syringe needle flexible pipe, in whole device without bubble.

4, the needle handle of hand-held needle part; remove needle protective cap; syringe needle is inserted to animal vein; bend syringe needle flexible pipe or the pulley of B port adjacency is shut; observation has or not blood back; there is blood back to retain syringe needle in blood vessel, without blood back, continue to find blood vessel to optimum position, then with adhesive tape fixedly flexible pipe and syringe needle.(normal saline can not cause injury of laboratory animal or affect trial drug dosage.）

5, open C end sealing cap, second syringe (inside having trial drug) is connected with C end, close the pulley of B port adjacency, open the pulley of C port adjacency, according to the scale of second syringe, push the medicine (pushing the content volume VC of the needed injection volume V of injection volume V medicine=test theory reason+C end flexible pipe) of designated volume/dosage.

6, close the pulley of C port adjacency, open the pulley of B port adjacency, according to the scale of first, promote first syringe, with normal saline, medicine residual in flexible pipe is all pushed to animal blood vessels (pushing the content volume V pin of content volume VA+ syringe needle flexible pipe of the content volume VB+A end flexible pipe of normal saline volume VNS=B end flexible pipe), the VNS of comparable Theoretical Calculation suitably pushes some more, to guarantee that medicinal liquid all enters.

For handled easily, the flexible pipe of all of the port all can be made as to capacity is 0.1ml or 0.2ml, and can prepare different specifications according to animal size and drug dose.

Interchangeable, syringe needle part of the present utility model and three trouble interface sections can be directly as one, the time of connecting needle part and three trouble interface sections in the time of can reducing like this operation, reduce the seam of syringe needle part and trident interface section owing to repeatedly patching the pollution that may cause simultaneously.

Interchangeable, the syringe needle of syringe needle part of the present utility model can be made remaining needle, can stay pin in animal body.Each rear enclosed syringe needle end that operated, direct connecting needle end when operate next time, need not puncture again.

Interchangeable, above trident interface section all can replace with multi-fork (prong number is greater than three) interface section.

By above technical scheme, simple to operate, can effectively avoid drug leakage, improve zooperal success rate, reduce animal suffering, save plenty of time and money.

So far, those skilled in the art will recognize that, although detailed, illustrate and described a plurality of embodiment herein, but, in the situation that not departing from this utility model spirit and scope, still can directly determine or derive many other modification or the modification that meets this utility model principle according to the disclosed content of this utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or modifications.

Claims

1. an animal venipuncture administration accurate quantification device, described device comprises: syringe needle part, it comprises syringe needle, protective sleeve of syringe needle, needle handle, syringe needle flexible pipe; With trident interface section, its main body is the trident flexible pipe with three ports, wherein the first port connects the first flexible pipe of trident flexible pipe, the second port connects the second flexible pipe of trident flexible pipe, the 3rd port connects the 3rd flexible pipe of trident flexible pipe, the first port is for the syringe needle flexible pipe of connecting needle part, and the second port is used for being connected syringe with the 3rd port, on the second flexible pipe and the 3rd flexible pipe, is provided with flow-control pulley; And two syringes with scale, for passing through the second port and the 3rd port filling liquid.