CN2149868Y

CN2149868Y - Medical disposable hemospast

Info

Publication number: CN2149868Y
Application number: CN 93202716
Authority: CN
Inventors: 邓学军; 许建节; 许睿; 邓亚军; 邓殿军
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-15
Filing date: 1993-02-15
Publication date: 1993-12-22
Anticipated expiration: 2003-02-15

Abstract

The utility model relates to a medical appliance contacting with human bodies, in particular to a medical disposable hemospast. A needle guard assembly is arranged on the medical disposable hemospast, and the needle guard assembly is composed of inner and outer syringe needles, a needle holder, a needle guard (a sleeve pipe), an outer syringe needle, a protective cap and cellophane. A negative pressure test tube cylinder assembly is arranged in the needle guard and is composed of a test tube cylinder and a rubber stopper head. The inner syringe needle can pass through the rubber stopper head and can be communicated with the test tube cylinder. The disposable hemospast is used, thus the contacting opportunities of medical care personnel and patients can be reduced, communicable diseases can be prevented, and the rate that blood appears when the syringe needle penetrates a blood vessel for the first time can be enhanced. It is convenient to carry, convey and keep the blood sample which is sampled.

Description

Medical disposable hemospast

This utility model relates to and the contacted medical apparatus and instruments of human body, especially is a kind of disposable hemospast of blood in human body in liquid being extracted out (for inspection purpose).

For inspection purpose the intravital blood extraction of people with hemospast, hemospast is the apparatus that doctor, the personnel of protecting use always in the hospital.But present hemospast has the following disadvantages:

1, with of health blood drawing, the check of existing hemospast, cures, infects easily when the personnel of protecting work various diseases from different people.Some research data shows: patients' such as AIDS, hepatitis B, hepatitis C, encephalitis b blood, if drop in healthy application on human skin breakage, as long as be introduced into 0.01ml, communicate illness is 100%.Thoroughly do not cleaned if contacted these blood and sterilized, entered human body by other approach again, may be caused a disease yet.Current in the clinical blood drawing checkout procedure of China, exist more by the chance of blood-borne: as because syringe sterilization is not thorough, the cross infection by syringe between patient and the patient; The nurse cleans syringe and the reviewer cleans test tube, can be by remaining blood-borne; After particularly the nurse exhausts blood, take out syringe needle, the blood in the syringe be pushed in the teat glass check usefulness in order to doing, at this moment, the blood on syringe needle and the syringe is easy to drop on nurse's the skin.

2, existing hemospast itself can not form negative pressure, and the puncture vessel rate of hitting the nail on the head is low, the work efficiency during the influence blood drawing.Current, use the syringe puncture vessel, often can only and feel to carry out with the experience of nurse operation, perhaps with other ways replacements, in a word, work efficiency is lower.

3, be unfavorable for carrying, transport and taking care of of blood " sample ".The blood " sample " that current collection comes all is to deposit with teat glass is uncovered, and teat glass is very easily broken, and in vitro blood is easily done to spill or pollute.

The purpose of this utility model is to avoid the weak point in the above prior art and a kind of negative pressure that can form is provided, and improves the rate of hitting the nail on the head, is difficult for infecting disposable hemospast disease, the difficult pollution of blood " sample " when medical personnel work.

Task of the present utility model is finished like this:

This disposable hemospast improves design on existing hemospast basis, mainly designed: a needle guard assembly, this assembly is made up of inside and outside syringe needle, needle stand, needle guard, outer needle protective cap, cellophane, together hot sticky between needle stand and the needle guard, inside and outside syringe needle is same hollow needle body; Cellophane is attached to an end face (mouth) of needle guard and locates; Within the hemospast needle guard, be provided with a negative pressure test tube tube assembly that is slidingly matched with the needle guard inwall, this assembly is made up of test tube tube, rubber chock plug, and an end of test tube tube is a closed state, and the other end is embedded within the rubber chock plug.Can extract the air in the test tube tube out by the rubber chock plug in advance and remove to become negative pressure test tube tube.During use; throw off the cellophane on the needle guard end face earlier; negative pressure test tube tube filled in the needle guard (be slidingly matched); syringe needle passes the rubber chock plug and enters a part in the negative pressure test tube tube in making; like this when the protective cap on the outer syringe needle is removed; outer syringe needle thrusts in the human vas, and then blood enters in the negative pressure test tube tube by syringe needle in outer.Extract test tube tube assembly (together with first of rubber closure), then the blood of test tube tube assembly is exactly " principal " of check.

This utility model is described further middle in conjunction with the accompanying drawings embodiment:

Fig. 1 is the population structure sketch of disposable medical hemospast,

Fig. 2 is the needle guard assembly structure sketch of disposable medical hemospast,

Fig. 3 is the negative pressure test tube tube assembly structure sketch of disposable medical hemospast.

In the diagram zero, the sequence number explanation at parts and position thereof:

1, outer syringe needle, 2, needle stand (solid piece of plastic), 3, interior syringe needle (with outer syringe needle be same needle body); 4, needle guard assembly; 5, label, 6, negative pressure test tube tube assembly, 7, blood; 8, rubber chock plug; 9, the blood vessel of human body, 4-1, outer needle protective cap, 4-2, cellophane; 4-3, needle guard (sleeve pipe), 6-1, negative pressure test tube tube.

This disposable medical hemospast mainly is made of syringe needle, sleeve pipe and " piston " that match with the cover pipe orifice, it is characterized in that:

A, on this hemospast, be provided with a needle guard assembly 4; this assembly 4 is made up of outer syringe needle 1, needle stand 2, interior syringe needle 3, needle guard (sleeve pipe) 4-3, outer needle protective cap 4-1, cellophane 4-2; inside and outside syringe needle 3; 1 is same hollow needle body; and pass solid needle stand 2; together hot sticky between needle stand 2 and the needle guard 4-3, cellophane 4-2 is bonded at the end face (mouth) of needle stand 4-3 and locates

B, within the needle guard 4-3 of this hemospast, be provided with a negative pressure test tube tube assembly 6 that is slidingly matched with the needle guard inwall, this assembly 6 is made up of negative pressure test tube tube 6-1, rubber chock plug 8, the end of negative pressure test tube tube 6-1 is a closed state, the other end is embedded within the rubber chock plug 8, be carved with the metering scale chi vertically on the external cylindrical surface of test tube tube 6-1, and on its external cylindrical surface, go back label 5.

Said interior syringe needle 3 passes rubber chock plug 8 and communicates with negative pressure test tube tube 6-1.

Said: the material of needle stand 2, needle guard 4-3, outer needle protective cap 4-1, test tube tube 6-1 is plastics.

A test tube tube 6-1 can hold 3ml blood, marks the volume scale on the test tube tube external cylindrical surface.Label can be write exactly on the test tube drum outer wall: name, department, seat number, blood drawing time, main or anticoagulant pipe.This hemospast can also with disposable tourniquet, the supporting use of disposable tissues, form a blood drawing bag.During the puncture blood drawing, the napkin pad is under patient's elbow.Blood drawing finishes, and with useless article such as tissue-wrapped tourniquet, hemospast needle guards, centralized and unified disappearing ruined.This disposable hemospast is applicable to various medical institutions, uses when being particularly useful for drawing blood chamber, contagious department and infectious hospital and health check-up.

This utility model good effect:

1, uses this disposable hemospast, can reduce " chance that medical personnel contact with blood ", can give anti-infectious disease.After the blood drawing, the nurse needn't separate syringe needle and syringe, therefore, just needn't worry to touch the blood on the hemospast, needn't worry also that in vitro blood is former thereby spill because of certain.This hemospast is disposable use, therefore, both can prevent cross infection between the patient, in the time of can preventing also that nurse and reviewer from cleaning syringe and test tube and infected.

2, this hemospast is provided with negative pressure test tube tube, thereby, can improve the puncture vessel rate of hitting the nail on the head.

3, this hemospast is easy for operation.The past blood drawing will be pulled out syringe " plug " backward, and blood can flow in vitro automatically now, and in the test tube anticoagulant is housed, and uses more convenient.

4, adopt this hemospast, help carrying, transport and taking care of of blood sample.Prior art, gathering the blood sample that comes all is to deposit with teat glass is uncovered, and very easily fragmentation, lane are spilt or polluted, and use this hemospast, blood leaves sealed plastic in vitro, and promptly the blood of being extracted out is to leave in the sealing test tube tube that a termination has the rubber chock plug.

Claims

1, a kind of disposable medical hemospast mainly is made of syringe needle, sleeve pipe and " piston " that match with the cover pipe orifice, it is characterized in that:

A, on this hemospast, be provided with a needle guard assembly 4; this assembly 4 is made up of outer syringe needle 1, needle stand 2, interior syringe needle 3, needle guard (sleeve pipe) 4-3, outer needle protective cap 4-1, cellophane 4-2; inside and outside syringe needle 3; 1 is same hollow needle body; and pass solid needle stand 2; together hot sticky between needle stand 2 and the needle guard 4-3, cellophane 4-2 is attached to the end face (mouth) of needle guard 4-3 and locates

B, within the needle guard 4-3 of this hemospast, be provided with a negative pressure test tube tube assembly 6 that is slidingly matched with the needle guard inwall, this assembly 6 is made up of negative pressure test tube tube 6-1, rubber chock plug 8, the end of negative pressure test tube tube 6-1 is a closed state, the other end is embedded within the rubber chock plug 8, is carved with metering aperture chi on the external cylindrical surface of test tube tube 6-1 vertically and goes back label 5 on its external cylindrical surface.

2,, it is characterized in that said interior syringe needle 3 passes rubber chock plug 8 and communicates with negative pressure test tube tube 6-1 according to the described hemospast of claim 1.

3, according to claim 1,2 described hemospasts, it is characterized in that said: the material of needle stand 2, needle guard 4-3, outer needle protective cap 4-1, test tube tube 6-1 is plastics.