CN2175004Y - Disposable infusion device with the insertion needle over the level - Google Patents

Abstract

The utility model relates to a disposable infusion device with a bottle inserting needle over the level, composed of a scalp needle, an air exhaust needle, a flow rate device, a T-valve, and a bottle inserting needle which are orderly connected through a plastic pipe. The difference between the prior art and the utility model is that the lengths of the needles are different. The length of the bottle inserting needle of the plastic infusion device is higher than the liquid level in an infusion bottle. The bottle inserting needle has two kinds, one kind has the length of 130-135 mm, and the other kind has the length of 165-170 mm. The two kinds are respectively matched with the infusion bottles of 250 ml and 500 ml. An air return hole on a bottle inserting needle seat is communicated with one of the needle holes of the bottle inserting needle until a needle head; an infusion hole is communicated with the other needle hole of the needle inserting needle until the infusion pipe. The utility model has the advantages that when air enters the top of the infusion bottle, the air does not pass through physic liquor, the abuse that the air pollutes the physic liquor is avoided, infusion reaction and cross infection can be reduced, etc.

Description

Disposable infusion device with the insertion needle over the level

This utility model belongs to design of medical plastic transfusion device and manufacturing technology field.

The unirradiated plastic transfusion sets that is widely used in hospital clinical at present is a disposable drop utensil.The needle for inserting bottle seat has two pores, and one is return-air hole, and one is infusion hole.Air cooled via return air hole flows to the infusion bottle top by medicinal liquid, makes a bottle inside and outside air pressure balance, and medicinal liquid flows into the vein of human body by transfusion device under action of gravity.Its shortcoming is, when air rises to the process at top through medicinal liquid from the infusion bottle bottom, be suspended in airborne dirt particle, noxious substance, antibacterial and virus, partly be dissolved in and be deposited in the medicinal liquid, thereby the medicinal liquid that makes the process autoclave sterilization is subjected to pollution in various degree, to making individual patients infusion reaction occur, even cross infection takes place.

The purpose of this utility model is that the defective at existing transfusion device provides a kind of medicinal liquid that can prevent by air pollution, promptly inserts the medical plastic transfusion device that bottle length surpasses liquid level.

Structure of the present utility model as shown in drawings.It is to be formed by connecting with plastic tube successively by scalp acupuncture (1), exhaust needle (2), flow calorimeter (3), threeway (4), needle for inserting bottle (5).The length of this needle for inserting bottle has two kinds: a kind of is 130～135 millimeters, is used with 250 milliliters of infusion bottles; Another kind is 165～170 millimeters, is used with 500 milliliters of infusion bottles.The needle for inserting bottle of these two kinds of length all is higher than the liquid level of its corresponding infusion bottle.Return-air hole on the needle for inserting bottle seat and needle for inserting bottle (5) wherein a pin hole communicate up to syringe needle, and infusion hole is at about 20～25 millimeters places of needle for inserting bottle (5) root, with another pin hole of needle for inserting bottle (5) to up to tube for transfusion.

Manufacturing technology of the present utility model and material and the unirradiated plastic transfusion sets that uses at present are basic identical, adopt non-toxic formulation, and ethylene oxide sterilizing is made under the dust-free sterile condition.It does not exist together, and the length of needle for inserting bottle will surpass liquid level in the infusion bottle.

The using method of this new medical unirradiated plastic transfusion sets is needle for inserting bottle to be inserted from the infusion bottle rubber closure, till the needle for inserting bottle point exceeds the medicinal liquid liquid level (infusion bottle reversal of the natural order of things).

The utility model has the advantages that air directly enters the infusion bottle top by the needle for inserting bottle hole and without medicinal liquid from return-air hole, thereby has avoided the pollution of air to medicinal liquid.

Accompanying drawing is the utility model structural representation.

1-scalp acupuncture 2-exhaust needle 3-flow calorimeter 4-threeway 5-needle for inserting bottle

Press the accompanying drawing structure, the explanation of this description the 5th part is used the state of the art and promptly be can be made into this utility model.

Claims (1)

1. The disposable transfusion device of the super liquid level of needle for inserting bottle, be formed by connecting with plastic tube by scalp acupuncture, exhaust needle, flow calorimeter, threeway and needle for inserting bottle, the length that it is characterized in that needle for inserting bottle (5) surpasses transfusion face, the length of the needle for inserting bottle of the transfusion device of 250 milliliters and 500 milliliters infusion bottles is respectively 130～135 millimeters and 165～170 millimeters

   Return-air hole on the needle for inserting bottle seat and needle for inserting bottle (5) wherein a pin hole communicate up to syringe needle, and another pin hole of infusion hole and needle for inserting bottle (5) is to up to tube for transfusion.

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