CN2109204U

CN2109204U - Float pad automayic type drop infusion device

Info

Publication number: CN2109204U
Application number: CN 92200188
Authority: CN
Inventors: 陈隆雄
Original assignee: Individual
Current assignee: Hong Yongfeng
Priority date: 1992-01-14
Filing date: 1992-01-14
Publication date: 1992-07-08

Abstract

The utility model belongs to a float pad automatic type drop infusion device which is mainly characterized in that a fixed seat body is arranged in the lower part of the liquid storing room of the upper end of the burette. The base body is penetrated by a through hole, while a movable silicon rubber float pad is arranged above the base body. The float pad can float above the base body by the buoyancy provided by the injection to make the through hole of the base body open and be convenient for the injection to naturally flow into the vein of the patient. When the drop is finished, the float pad descends along the injection and automatically seals the through hole of the base body by receiving the attracting force to make some injection still stay in the burette, avoid the blood from countercurrent flowing to the burette and be convenient for changing the drop bottles and continuing for the injection.

Description

Float pad automayic type drop infusion device

This utility model relates to a kind of medical automatic close-type transfusion system.

The transfusion injection often expends the tediously long time, can reach more than a few hours sometimes.In infusion process, because patient and nurse personnel's carelessness is tired or sleepy, the carrying out of very easily ignoring fluid infusion, so that when flowing to end, injection can cause blood back flow, make blood clotting block patient's blood vessel and entry needle, jeopardize patient safety, also must change dropper again for the continuation drop simultaneously and make vascular puncture, inconvenience is all arranged for patient and nurse.Therefore, at present existing many automatic close-type transfusion devices and infusion monitor and alarm arise at the historic moment, but they have complex structure or close tightly inadequately, shortcomings such as weak effect, resemble the automatic close-type transfusion device of accompanying drawing 1, establish a piston seat 2 in the liquid-accumulating chamber 1 below a drop bottle, have through hole 3 on the piston seat 2, through hole 3 tops are provided with floating piston 4, its lower end is connected with square guided plate 5 and stopper 6, though the buoyancy that floating piston 4 can be provided by injection floats, and can fall within automatically on the piston seat 2 when injection drips off, make stopper 6 block through hole 3, prevent the air admission vein, the also unlikely adverse current of blood.But this device must design and produce very accurately, make stopper 6 fill in through hole 3 exactly under guided plate 5 effects.Have, the phenomenon that stopper 6 is fastened in through hole 3 takes place in this device also regular meeting, causes the difficulty in the use again.

In order to overcome above-mentioned shortcoming, it is a kind of simple in structure, with low cost that this utility model provides, can be effectively when injection flows to end the camel automatic close-type transfusion system of through hole below the sealing liquid-accumulating chamber automatically.

Above-mentioned purpose of the present utility model reaches like this: establish a fixed pedestal below liquid-accumulating chamber's inwall of transfusion device, the little conical surface that slightly is of this pedestal end face, a through hole is run through at its center, the pedestal top is provided with an active camel, the rounded lamellar body of camel, float on the liquid level of injection, when liquid to be injected is used up along with through hole on the pedestal is sealed in the decline of injection in the liquid-accumulating chamber automatically.Camel adopts the soft silicone rubber of handling through foaming to make.

This utility model adopts following accompanying drawing:

Fig. 1 is a kind of automatic close-type transfusion system of the prior art.

Fig. 2 is the axonometric chart of camel automatic close-type transfusion system of the present utility model.

Fig. 3 is the closing plane cutaway view of camel automatic close-type transfusion system of the present utility model.

Below in conjunction with drawings and Examples this utility model is done more detailed explanation.

As Fig. 2 and 3, camel automatic close-type transfusion device is made up of a drop bottle 7, liquid-accumulating chamber 8, dropper 9, flow regulator 10, entry needle 11, camel 12 and the pedestal 13 that has a through hole 14.The outlet of injection through liquid-accumulating chamber 8 lower ends that some drop bottle 7 is supplied with enters dropper 9, injects venous patient through flow regulator 10 and entry needle 11 again.Main feature of the present utility model is to establish a fixed pedestal 13 below the inwall of liquid-accumulating chamber 8, this pedestal 13 can be directly molded on liquid-accumulating chamber's 8 inwalls during fabrication, there is a through hole that runs through 14 at the center of pedestal 13, be the unique passage of liquid-accumulating chamber 8 towards lower end dropper 9, the little conical surface that slightly is of the end face of pedestal 13, as shown in Figure 3, promptly higher near central through hole 14 places, the outer rim place is lower, and the gradient of this conical surface is minimum, does not see being principle with range estimation.An active soft camel 12 is put in pedestal 13 tops, and this camel 12 is a circular lamellar body, mainly is to be made by the silicone rubber that foaming is handled, and its proportion is lighter than water.When having injection supply liquid-accumulating chamber 8 in the drop bottle 7, camel 12 promptly is subjected to the buoyancy of injection to float on the injection surface, and when injection flows to end, camel 12 in the liquid-accumulating chamber 8 promptly descends with injection, because of pedestal 13 end faces slightly are the conical surface, 14 of through holes are slightly high, and camel 12 is a soft material, so camel 12 bottom surfaces can the appropriateness distortion be affixed on pedestal 13 end faces, really and closely seal through hole 14, add the suction of camel 12 weight own and injection current, more can reach good sealing effect, avoid causing the phenomenon of blood back flow to take place.In addition, this utility model has sealed the camel 12 of through hole 14 after injection injects in liquid-accumulating chamber 8, because buoyancy when changing some drop bottle 7, rise from pedestal 13 immediately, open through hole 14 can flow out injection again from through hole 14, inject dropper 9, finish the function that continues transfusion.

Comprehensively above-mentioned, this utility model is real to be a kind of quite excellent infusion set, simple in structure, very easy to use.

Claims

1, a kind of by a drop bottle, liquid-accumulating chamber, dropper, flow regulator, entry needle, camel with have the camel automatic close-type transfusion system that the pedestal of through hole is formed, a fixed pedestal is established in the liquid-accumulating chamber inwall below that it is characterized in that transfusion device, the little conical surface that slightly is of this pedestal end face, a through hole is run through at its center, the pedestal top is provided with an active camel, the rounded lamellar body of camel, float on the liquid level of injection, when liquid to be injected is used up, along with through hole on the pedestal is sealed in the decline of injection in the liquid-accumulating chamber automatically, make and still leave injection in the dropper.

2, camel automatic close-type transfusion system according to claim 1 is characterized in that camel adopts the soft silicone rubber of handling through foaming to make.