CN2175932Y

CN2175932Y - Disposable blood sampling test tube

Info

Publication number: CN2175932Y
Application number: CN 93229187
Authority: CN
Inventors: 孟昭君
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-04
Filing date: 1993-09-04
Publication date: 1994-08-31
Anticipated expiration: 2003-09-04

Abstract

The utility model discloses a disposable blood sampling test tube. The test tube and the piston used for pumping and injecting liquid are combined together, the nipple on which the needle is arranged and the blood sampling passageway are arranged on the piston, and thus the utility model has the functions of an injector and a test tube. When the utility model is used for blood sampling, the blood sampling is a single operation, the blood is directly pumped into the test tube, and the blood does not pumping by the injector and injecting into the test tube. The effects of simple operation, high efficiency, no pollution of specimen and environment, and material saving are achieved.

Description

Disposable blood sampling test tube

The utility model belongs to medical instruments field, is specifically related to a kind of disposable blood sampling test tube.

Up to now, test tube can not be taken a blood sample only as a kind of container; And syringe is only as a kind of suction and instrument used for injection, can not be as container.The nurse gathers the patients'blood sample, all need carry syringe and test tube simultaneously, does venipuncture with disposable syringe earlier, and sucking-off blood injects the blood that is drawn onto in the syringe in the disposable test tube again, send the laboratory to check.The shortcoming of above technology is:

1, twice operation.Once blood sampling, an injecting tube.During extensive work, very time-consuming.

2, the test tube mouth is bigger, places badly, and test tube is lied down, and can cause blood preparation to run off contaminated environment.

3, each blood sampling will consume two apparatuses, the one, test tube, the 2nd, syringe.This is waste.

The purpose of this utility model is under the prerequisite of the function that keeps test tube and syringe, and both are combined, and promptly a kind of apparatus has test tube and two kinds of functions of syringe.Simultaneously easy to operate, be difficult for causing blood preparation to run off, reach time saving and energy saving, save, purpose free from environmental pollution.

For finishing above-mentioned task, the solution that the utility model adopts is: taking out of test tube and syringe annotated piston in combination be in the same place, test tube is enclosed within on the piston as the test tube overcoat.The nipple that connects syringe needle, be arranged on the termination of piston handle; Establish a blood sampling passage that runs through whole piston at the piston center.And add a handle in the test tube bottom, at test tube high scale line with external-open one air admission hole.During blood sampling, blood directly enters cuvette cavity by syringe needle, blood sampling passage.

The utility model has the advantages that:

1, have both two kinds of functions of test tube and syringe in one, blood sampling does not need to prepare simultaneously test tube and two kinds of apparatuses of syringe in the patient body, only gets final product with this apparatus; Blood sampling directly enters test tube, and whole blood collection procedure are finished in single job.Thereby easy and simple to handle, raise the efficiency.

2, do not extract piston and can inspect by ready samples after the blood sampling, so blood preparation and isolated from atmosphere degree are very high, vulnerable to pollution not; And, even test tube is horizontal, inversion, do not have loss of blood yet, so be difficult for polluting staff's clothing and environment, nurse and lab technician fetch and deliver convenience, clean.

3, consume syringe simultaneously with the past employing and compare with test tube, the utility model only consumes a blood sampling test tube, has saved goods and materials.

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

Fig. 1 is disposable blood sampling test tube schematic appearance.

Fig. 2 is syringe needle and pinhead sleeve.

Fig. 3 is the longitudinal profile of test tube overcoat and the synoptic diagram of internal piston thereof.

Fig. 4 is piston and inner passage synoptic diagram thereof.

Fig. 5 is the piston handle drawing in side sectional elevation.

Fig. 6 is the piston head drawing in side sectional elevation.

Disposable blood sampling test tube is made up of piston and test tube overcoat.Piston comprises rubber piston head (6), piston handle (2) and nipple (1).The center of running through piston head (6), piston handle (2) and nipple (1), passage (7) is arranged, the opening of passage (7) on piston head (6) communicates with the tube chamber of test tube, and in the tip of other end opening in nipple (1), communicates with syringe needle (8) when settling blood collection needles.There is air admission hole (4) in the scale mark outside of test tube overcoat (3), and there is handle (5) bottom of test tube overcoat (3).Whole apparatus is all made with rigid plastic except that piston head is made by rubber.Its specification is suitable for blood sampling and last hydro-extractor.

During blood sampling, syringe needle (8) is positioned on the nipple (1), puncture vessel spurs test tube handle (5) then, and blood promptly flows into test tube.Transport with put procedure in can keep piston in cuvette cavity, blood is promptly isolated with environment, can not run off, and does not pollute the environment, also can be by atmospheric pollution.Centrifugal as desire, can extract piston.Piston is pulled out to air intake opening (4) when above, promptly have air to enter cuvette cavity, blood is separated, with piston so the piston of extracting stains seldom.When needing anti-freezing, can before blood sampling, put into anti-coagulants, or put into anti-coagulants immediately after the blood sampling.

Claims

1, a kind of disposable blood sampling test tube, it comprises test tube and piston, there is nipple (1) outer end that it is characterized in that piston handle (2), and there is a passage (7) at the center of running through nipple (1), piston handle (2), piston head (6), and test tube overcoat (3) is enclosed within and is combined into an apparatus on the piston.

2, disposable blood sampling test tube according to claim 1 is characterized in that test tube handle (5) is arranged at the bottom of test tube overcoat (3).

3, disposable blood sampling test tube according to claim 1 is characterized in that the top of the scale mark of test tube overcoat (3) has a pore (4).