CN2324966Y

CN2324966Y - Three way blood sampler

Info

Publication number: CN2324966Y
Application number: CN 97200684
Authority: CN
Inventors: 孟婉
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-21
Filing date: 1997-01-21
Publication date: 1999-06-23
Anticipated expiration: 2007-01-21

Abstract

The utility model relates to a three-way blood sampler, which can do blood sampling as well as reagent sampling. The utility model is characterized in that the side of an existing nipple of the three-way blood sampler is provided with a lateral nipple, which is communicated with the lumen of the existing nipple of the three-way blood sampler and is equal with the existing nipple of the three-way blood sampler in size and thickness. A front nipple is communicated with a blood sampling pinhead, and the lateral nipple is communicated with a quantitative liquid filler through a pipe. When blood is sampled, the negative pressure is formed by drawing a piston, at the same time, blood and reagent are pumped in. The sampled blood obtains the timely function of the reagent, physiochemical change of the sampled blood is reduced after being separated from body, the distortion of examination result is avoided, the error of experiment is reduced, the experiment time is shortened, tubes and blood samplers are saved, and the cross infection and environmental pollution are avoided.

Description

The threeway hemostix

This utility model relates to a kind of medical apparatus and instruments, more precisely relates to a kind of blood-taking device that is used to gather human or animal's blood, especially can adopt a kind of hemostix into corresponding reagent in blood sampling.

Present known hemostix is by empty tube, piston, the axis of the piston, piston handle and a nipple are formed, during blood sampling nipple and blood collection needles are locked, when syringe needle thrusts blood vessel, cause negative pressure in the empty tube by the pull piston, blood is drawn into hemostix, adopt when an amount of, extract syringe needle, then blood is injected and added in advance in the test tube of reagent (as the anticoagulant fixative), so, blood is Zi exsomatizing to being subjected to the reagent effect during this period of time, be subjected to machinery inevitably, thermal stimulation, time difference influence and cause the blood physical and chemical composition, the change of cell ultrastructure detects the blood changed and then easily causes experimental error and testing result distortion, can not express the body initial condition strictly according to the facts.

The purpose of this utility model provides a kind of hemostix, and it can not only be in order to human or animal blood sampling, and can just be drawn out of the effect that just in time obtains corresponding reagent at blood, avoids the blood physical and chemical composition to change and the testing result distortion that causes.

The purpose of this utility model is achieved in that nipple (the preceding nipple 5) side before the empty tube of general hemostix is provided with one and equates with preceding good size and spaced farapart, thickness, the side nipple that tube chamber communicates, preceding nipple connects blood collection needles, the side nipple communicates with quantitative charger by a pipe, the piston pull forms the negative pressure in the empty tube, can reach the purpose that is drawn into blood and reagent simultaneously.

Because adopt such scheme, blood in time is subjected to the reagent effect, is in time fixed by anticoagulant, avoided blood to exsomatize after physical and chemical composition change and the testing result distortion that causes; Because blood drawing and adding reagent are finished simultaneously, reduce experimental procedure in addition in hemostix, shortened the time, saved a collection of test tube; Have again,, use its glass because conventional hemostix is the same with syringe shape, the not strict cross infection that causes in case sterilize, if use plastic, a large amount of disposable abandoning are caused white pollution, and the tangible shape labelling of this utility model has been distinguished the function of blood sampling with injection, be convenient to classification, avoid using with, can use glass, special cleaning and sterilizing, both prevented and the syringe cross-contamination, can reuse again, solved the above-mentioned disadvantage of common hemostix.

Below in conjunction with drawings and Examples this utility model is further specified:

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is dependent claims structure chart and embodiment.

Among Fig. 1 and Fig. 2: the empty tube of 1-; The 2-piston; The 3-the axis of the piston; The 4-piston handle; Nipple before the 5-; 6-side nipple;

The 7-blood collection needles; 8-leather hose (or plastic tube); The 9-quantitative charger; The 10-liquid outlet.

Fig. 2 embodiment: nipple 5 is locked with blood sampling needle tubing 7 before during blood sampling, the be locked liquid outlet 10 of adjustable quantitative charger of pipe 8 the tight side nipple 6 of a headgear, other end is when blood collection needles is thrust blood vessel, piston handle is outwards twitched, form negative pressure in the empty tube, then blood and reagent are pumped in the empty tube of hemostix, so together, blood has just exsomatized when not changing as yet just in time by the reagent effect, alleviate the distortion of blood specimen, reduce experimental error, make testing result more be tending towards reacting the original situation of body.

Claims

1. a syringe of being made up of empty tube, piston, the axis of the piston, piston handle and nipple is characterized in that going out one in the nipple side branches communicates with it and side nipple big or small, that thickness equates, forms the threeway hemostix thus.

2. threeway hemostix according to claim 1 is characterized in that being communicated with the adjustable quantitative charger by a pipe, forms one in the threeway and lead to-communicates with reagent.