CN2266991Y

CN2266991Y - Disposable automatic blood sampler

Info

Publication number: CN2266991Y
Application number: CN 95214964
Authority: CN
Inventors: 张水旺; 张辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-21
Filing date: 1995-06-21
Publication date: 1997-11-12
Anticipated expiration: 2005-06-21

Abstract

The utility model relates to a disposable automatic blood sampler, which is composed of a blood sampling needle, a protective jacket of a needle head and a negative-pressure test tube, the blood sampling needle is composed of a lucite pipe, the needle head and a puncturing needle head, and the pinhead and the puncturing needle head are respectively arranged at both ends of the lucite pipe. The utility model abandons the traditional syringe-type blood sampling way. The utility model can efficiently sample quantitative blood and prevent cross infection in hospital, and can also reduce the pain of patients. Simultaneously, the utility model has low cost; as a disposable consumable, the utility model can meet the requirement of sanitary authorities.

Description

Disposable automatic blood sampler

This utility model relates to a kind of medical apparatus and instruments, specifically is a kind of disposable automatic blood sampler.

At present, the method that China's venous blood collection uses mainly contains two kinds: first method is to use the disposable syringe blood drawing, and its shortcoming is the control blood drawing amount that the very important person is, does not note just causing blood drawing too much or very few slightly, and when blood is injected, easily cause the cross infection in the hospital in test tube.Second method is to adopt disposable automatic ration vein hemostix, the problem that the hemostix of this class causes blood to drip when still having blood sampling easily outward.

The purpose of the disposable automatic blood sampler of this utility model is that automatic negative-pressure hemostix is in the past improved, and not only can not cause blood to drip phenomenon outward, reduces the chance that blood preparation infects, and uses more convenient, cheap.

The solution of the disposable automatic blood sampler of this utility model is by negative pressure test tube, lucite pipe, and syringe needle, piercing needle, butterfly needle handle, rubber cap and puncture needle sheath are formed.The piercing needle that has the butterfly needle handle is equipped with at the two ends of lucite pipe, and the puncture needle sheath is housed on the piercing needle, and other end syringe needle is to penetrate negative pressure test tube sealing rubber plug to use, and is contained in rubber cap on the syringe needle.The negative pressure test tube is stamped sealing rubber plug by the test tube upper end of the evacuation of band metering scale and constitutes.During use the puncture needle sheath on the piercing needle is taken down, piercing needle is penetrated into patient's vein, the syringe needle that rubber cap will be housed again penetrates the sealing rubber plug of rubber cap thorn people negative pressure test tube, because negative pressure causes automatic blood drawing, needs how much blood to see that the test tube scale gets final product.

Below in conjunction with accompanying drawing the disposable automatic blood sampler of this utility model is described further:

(2) are lucite pipe, (4) rubber cap, (5) syringe needle, (6) butterfly needle handle among Fig. 1, butterfly needle handle (8), piercing needle (9).

(1) negative pressure test tube, (7) sealing rubber plug among Fig. 2.

(3) puncture needle sheath among Fig. 3.

Be equipped with at an end of lucite pipe (2) on the syringe needle (5), syringe needle (5) of band butterfly needle handle (6) and be with rubber cap (4), the other end is equipped with the puncture syringe needle (9) of band butterfly needle handle (9), is with puncture needle sheath (3) on the piercing needle (9).To have the sealing rubber plug (7) that is stamped suitable for reading of graduated negative pressure test tube (1) again, negative pressure test tube (1) is evacuated and can uses.

The using and operate as follows of this disposable automatic blood sampler:

At first, shed puncture needle sheath (3) on the piercing needle (9).Hold butterfly needle handle (8) then, make piercing needle (9) puncture enter the human vein blood vessel.Well then can see through lucite pipe (2) as puncture technique and see that blood enters the lucite pipe of sealing (2), hold butterfly needle handle (6), syringe needle (5) is pierced through the sealing rubber plug (7) of negative pressure test tube (1), blood can enter negative pressure test tube (1) under the vacuum attraction in the negative pressure test tube (1), the blood drawing amount can be seen the scale on the negative pressure test tube (1) and decide.Not enough as the amount of blood drawing, can transfer to syringe needle (5) at this moment owing to due to the elasticity of rubber cap (4), can protect syringe needle (5) not contaminated again, to change a negative pressure test tube again and continue suction, blood drawing finishes and transfers to syringe needle and piercing needle to get final product.

Disposable automatic blood sampler of the present invention has the following advantages:

1, owing to adopts disposable lucite pipe to add double needle and the negative pressure examination at two ends Pipe, jettisoning traditional syringe construction mode, with not only cheap, operation but also convenient of practicality.

2, owing to adopt syringe needle to pass rubber cap, penetrate the structure of the sealing rubber plug on the negative pressure test tube again, prevented the cross infection in the hospital effectively.

3, can reach the quantitative collection, too much or very few of commensurability blood not, reduce patient's misery to prevent to draw blood.

Claims

1, a kind of disposable automatic blood sampler of forming by lucite pipe, syringe needle, protective sleeve of syringe needle and negative pressure examination two ends pipe; it is characterized in that an end of described lucite pipe (2) is equipped with the syringe needle (5) of band butterfly needle handle (6); be with rubber cap (4) on the syringe needle (5); the other end of lucite pipe (2) is equipped with the piercing needle (9) of band butterfly needle handle (8); be with puncture needle sheath (3) on the puncture syringe needle (9); the negative pressure test tube has scale on (1), is stamped sealing rubber plug (7) on negative pressure test tube (1) is suitable for reading.