CN2245458Y

CN2245458Y - Disposable infusion apparatus cabable of preventing liquor bottle emptying

Info

Publication number: CN2245458Y
Application number: CN 96206320
Authority: CN
Inventors: 胡斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-13
Filing date: 1996-03-13
Publication date: 1997-01-22
Anticipated expiration: 2006-03-13

Abstract

The utility model relates to a disposable infusion apparatus capable of preventing liquor bottle emptying, which is obtained from the existing infusion apparatus which is composed of a saline needle, a rubber pipe, a dropper, a regulating valve, a filter, and a scalp acupuncture, the tail end of the dropper is made into a section of casing pipe, the upper part of the casing pipe is made into a tooth-shaped guard sheet, and the space on the lower part of the tooth-shaped guard sheet is provided with a floating plug. When infused, liquor on the lower end of the dropper causes the floating plug floated, and the liquor passes through a gap between the floating plug and the dropper; when the liquor in the dropper is emptied, the floatingplug can be fallen down for eliminating the gap, the liquid can not flow for ensuring that the vein blood return or the air embolism owing to the liquor emptying can not generated. The worry about the infusion can be relieved.

Description

Can stop liquid to fail most disposable transfusion device automatically

This utility model relates to imports the intravital apparatus of people with medium.

Present widely used disposable transfusion device is by sebific duct saline needle, dropper, control valve, filter, scalp acupuncture to be connected in series successively.During transfusion, its saline needle insertion fills the transfusion bottle of liquid, and the scalp acupuncture of the other end inserts human vein, by the atmospheric pressure of external pneumostome acquisition near the sebific duct transfusion bottle and the weight of liquid itself, makes the interior liquid of transfusion bottle enter human body by transfusion device.If when liquid is soon failed to the greatest extent, fail in time to extract the scalp acupuncture that inserts human vein, because the venous pressure of human body, intravenous blood will outflow along transfusion device, is commonly called as blood back; If also will then fail next bottle liquid, because patient's blood back solidifies in sebific duct, just have to administer one injection to patient again, cause suffering to patient, increase trouble also for operation; If patient's vein forces down, air can be followed last liquid to enter vein and cause air embolism, and this jeopardizes patient's life security.In order to prevent the generation of above-mentioned various consequences, generally all be when liquid is use up soon, shift to an earlier date dosing or pull up scalp acupuncture.This just requires the nurse can nurse on the transfusion patient next door, is perhaps seen in generation by other people, then goes to cry the nurse.If the two does not all have, must monitor by transfusion patient oneself ..., in a word, use above-mentioned transfusion device, must someone guard, and make timely processing.For the solution transfusion must monitor the surplus amount problem of liquid, there are many people to propose to use infusion alarm, when liquid is use up soon, send alarm signal prompting medical personnel and deal with.Various infusion alarms, mostly, machinery constitutes for being equipped with circuit, utilize in the infusion process, liquid reduces gradually, the rule that reduces gradually of weight makes corresponding being subjected to displacement in contact in the alarm device, when liquid weight is reduced to certain value thereupon, the impulse stroke of alarm device also just in time reaches spacing contact, and closed contacting acoustics circuit just sends alarm signal.But alarm makes operation become complicated as an attachment device of transfusion, also wants electricity consumption; Patient for a long time, after the alarm equipment alarm, it is whose that medical personnel can not do standard, uses and inconvenience; The back medical personnel fail to arrive in if report to the police, and report to the police and still can not play effect.

The purpose of this utility model is to propose a kind of improved disposable transfusion device, and this transfusion device can automatically stop liquid defeated to the greatest extent, thereby when making transfusion, because liquid flows to end the blood back that causes or the problem of air embolism is resolved.

Technical solution of the present utility model is, in existing disposable transfusion device, the tail end of dropper is wherein made one section sleeve pipe, make the profile of tooth catch on the inwall of sleeve pipe top dropper, space under the profile of tooth catch is provided with a floating plug, and this floating plug is positioned among the described sleeve pipe.During transfusion, the liquid of dropper lower end floats floating plug, and the profile of tooth catch still is positioned among the sleeve pipe floating plug that floats, and liquid passes through from the gap between floating plug and the dropper; When liquid flow to end in the dropper, floating plug guaranteed can not cause vein blood back and air embolism to take place to the greatest extent because of liquid is defeated because gravity fall has been eliminated above-mentioned gap, and the following liquid of floating plug can not flow again.

This utility model can stop liquid to the greatest extent defeated again because floating and falling of floating plug can guarantee normal infusion automatically, and medical personnel so that patient needn't worry to the greatest extent for liquid is when defeated when making transfusion; And simple in structure, easy to make, realize easily.

Talk two embodiment below in conjunction with accompanying drawing.

Fig. 1 is first embodiment of this utility model.

Fig. 2 is second embodiment of this utility model.

Fig. 3 is a profile of tooth catch place sketch map.

Divide upper and lower two sections making with dropper (3), on the epimere profile of tooth catch (4) on the uniform inwall that is made in dropper (3), is being made sleeve pipe (6) at the tail end of hypomere.Embodiment one, sleeve pipe (6) is made tapered, with the chock plug on the floating plug (5) partly make identical tapering with it tapered by the conical surface contact eliminate gap between floating plug (5) and the dropper (3).Embodiment two, be with the endoporus of sleeve pipe (5) external diameter greater than floating plug (5) chock plug, and floating plug (5) can be contacted with transverse plane under the dropper, eliminate gap between floating plug (5) and the dropper (3) by this plane contact.After floating plug (5) placed sleeve pipe (6), again dropper (3) is welded into one for upper and lower two sections.For guarantee that floating plug can float and can accurately fall to eliminating behind the loss of buoyance and dropper between the gap, the floating plug end face is to having between the profile of tooth catch apart from a, and the distance b that floating plug and dropper coincide in the sleeve pipe place should be greater than a, like this, floating plug is limited among the sleeve pipe of dropper tail all the time, after dropper is flow to end in not overturning arbitrarily, so that liquid, can close dead atmospheric pressure naturally, liquid can not be failed to the greatest extent.The front of dropper (3) is connected sebific duct (2), saline needle (1) successively, and tail end connects sebific duct (2), filter (8), sebific duct and scalp acupuncture (9) successively, control valve (7) is loaded on the sebific duct behind the dropper again, promptly becomes this utility model.

Claims

A kind of liquid that can stop is automatically failed most disposable transfusion device, by sebific duct saline needle, dropper, control valve, filter, scalp acupuncture are concatenated into an integral body successively, it is characterized in that: the tail end of dropper has one section sleeve pipe, on the dropper inwall of sleeve pipe top the profile of tooth catch is arranged, there is a floating plug in space under the profile of tooth catch, this floating plug is positioned among the sleeve pipe, and the floating plug end face has apart from a between the profile of tooth catch, and the distance b that floating plug and dropper coincide in the sleeve pipe place is greater than a.