CN2187955Y

CN2187955Y - Transfusion device capable of self-stopping on using-up of liquid

Info

Publication number: CN2187955Y
Application number: CN 93244313
Authority: CN
Inventors: 何泓
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-09
Filing date: 1993-11-09
Publication date: 1995-01-25
Anticipated expiration: 2003-11-09

Abstract

The utility model relates to a transfusion device. The existing transfusion device is additionally provided with a casing with a tapered outlet on one end and an automatic stop device (4) composed of a floating plug inside the casing; the floating plug (4a) is composed of a tapered plug having same tapered degrees with tapered outlet, floating bodies (43) on both ends thereof, and guide heads (45). The utility model has the advantages of low cost and convenient operation, can be used under any conditions without additional energy source and electronic devices, and especially is used as a disposal automatic stop transfusion device.

Description

Transfusion device capable of self-stopping on using-up of liquid

This utility model relates to a kind of transfusion device, and especially a kind of liquid is intact from ending the type transfusion device, is existing improvement and innovation with transfusion device.

Transfusion is hospital's Therapeutic Method commonly used, and the various transfusion devices that use all do not have the intact function of ending certainly of liquid at present, if medicinal liquid drips off, and in time do not pull out syringe needle, and the air admission vein blood vessel causes contingency easily.Though the report of complete infusion alarm etc. was arranged in some data, its principle all is to utilize liquid level in the infusion process, and the variation of medicinal liquid weight is by complicated electronic circuit, send alarm signal or cut off the medicinal liquid path with respective execution mechanisms, reach the purpose of reminding or stopping to infuse.But said method complex structure, cost height, use occasion is subjected to power limitations, use also very inconvenient, simultaneously because complex structure, no matter be that signal detects, amplification, power supply, or actuator etc., any one link wherein goes wrong, perhaps improper use in the whole device, all might influence reliability, the safety of use, therefore not see as yet up till now in actual applications and promote.

The purpose of this utility model provides a kind of cheap, and is easy to use, and it is intact from ending transfusion device to need not the liquid that external energy and electronic installation can use in any occasion.

Major scheme of the present utility model is to set up to end device certainly on existing transfusion device basis, and described device system housing that is provided with conical outlet by an end and the floating plug of being located in it of ending certainly formed; Described floating plug is then by the conical plug identical with the conical outlet tapering and place the buoyancy aid at its two ends and guide head to be constituted.Lower end at conical outlet is provided with elastic bag, and it can be made with elastic apparent material; Described buoyancy aid can be used air bag, also can make less than other materials of water with density; Be provided with two convex bodys at the buoyancy aid top, or be provided with passage, during with assurance floating plug come-up, do not block the medicinal liquid import.

Therefore, the utlity model has easy to usely, cheap, safe and reliable, and need not characteristics such as external energy and electronic installation can use in any occasion, be particularly suitable for disposable use, thereby remove the possibility of disinfectant trouble and cross infection from.

Describe from the structure and the principle of ending transfusion device this utility model liquid is intact with reference to the accompanying drawings.

Fig. 1, liquid is intact from the overall diagram of ending the type transfusion device.

Fig. 2, of the present utility model from the structure chart that ends device.

As shown in Figure 1, this utility model liquid is intact from only the type transfusion device has air inlet pipe (1), liquid inlet head (2), tube for transfusion (3), only device (4), elastic bag (6), actuator (8), detachable joint (9), syringe needle (10) are formed certainly.

Below in conjunction with Fig. 2, the structure and the operation principle of ending device certainly described, ending device certainly has inlet (41), housing (42), buoyancy aid (43), conical plug (44), guide head (45), conical outlet (46) to form; Buoyancy aid (43), conical plug (44), guide head are formed floating plug (4A).The tapering of conical plug (44) is identical with the tapering of conical outlet (46).When being provided with passage or two convex bodys (47) on buoyancy aid top and the housing inner chamber, do not block the medicinal liquid import with assurance floating plug (4A) come-up.During normal the use, only be full of medicinal liquid in the device (4) certainly, floating plug (4A) is because the buoyancy of medicinal liquid floats on liquid level, and the liquid road is unimpeded, and medicinal liquid flows out from conical outlet, carries out normal infusion.When medicinal liquid when being totally lost, reduce gradually from ending the device inner liquid medicine, floating plug is along with liquid level descends gradually, drop in the conical outlet until floating plug, because remaining the pressure of medicinal liquid and outside air, the deadweight of floating plug, part make floating plug block conical outlet, thereby cut off the liquid road, it is intact from the function of ending to reach liquid.

The effect of elastic bag among Fig. 2 (6) is, before the transfusion beginning, may be because the impulse force of medicinal liquid or floating plug (4A) deadweight, make the conical plug (44) of floating plug clog medicine liquid outlet (46), this moment is as long as be transferred to the closed position to actuator (8), pinches elastic bag (6) then and makes that one of generation upwards pressure in tube for transfusion (3) road, with floating plug jack-up, slowly loosen air bag then, floating plug just floats in the medicinal liquid that ends in the device like this, can normally use.

Claims

1, a kind of by tube for transfusion, to end the liquid that device, actuator and syringe needle form certainly intact from ending transfusion device, it is characterized in that described is to be provided with the housing (42) of conical outlet (46) and to be located at its interior floating plug (4A) and to form by an end from ending device (4); Described floating plug is then by the conical plug (44) identical with the conical outlet tapering and place the buoyancy aid (43) at its two ends and guide head (45) to be constituted.

2, liquid as claimed in claim 1 is intact from ending transfusion device, it is characterized in that described buoyancy aid (4A) top of ending device (4) certainly is provided with two convex bodys (47); And be provided with elastic bag (6) in the lower end of conical outlet (46).