CN202740520U

CN202740520U - Air return device of infusion device

Info

Publication number: CN202740520U
Application number: CN 201220388910
Authority: CN
Inventors: 金琼绮; 叶友平
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-07
Filing date: 2012-08-07
Publication date: 2013-02-20
Anticipated expiration: 2022-08-07

Abstract

The utility model relates to a medical appliance, in particular to an air return device of an infusion device. The air return device is formed by a plastic hose (54) through spiral coiling, so a labyrinth type air flow passage is formed in the hose, an upper tube opening of the hose is an air outlet and is used for being connected with an air return needle (51) used for inserting and connecting a liquid medicine hanging bottle, a lower tube opening is an air inlet communicated with the external air and is connected with an air inlet tube (57), and disinfection liquid (6) is filled in the hose. External air enters the hanging bottle after passing through the disinfection liquid, bacteria and viruses in the external air can be killed, a contained dust layer is filtered by the disinfection liquid. The air return device has the advantages that the size is small, the weight is light, the contact time of the air in the disinfection liquid can be prolonged through the labyrinth type air flow passage formed in the hose, the killing effect of bacteria and viruses is enhanced, and pathogenic microorganisms in the air can be effectively from entering human bodies along with the liquid medicine.

Description

The gas-returning devices of transfusion device

Technical field

This utility model relates to medical apparatus and instruments, particularly the improvement of transfusion device.

Background technology

Existing medicinal liquid transfusion device is comprised of return-air pin, transfusion needle, dropper, actuator, venipuncture needle and connecting hose each other thereof.Owing to need to could keep lower of medicinal liquid to hanging the interior covering of bottle air by the return-air pin, the return-air pin inserts bottle stopper directly makes outside air float to the liquid level top with bubble form on bottle inner liquid medicine through hanging.But in this special environment of hospital, pollution source is many, and the pathogenic microorganism kind is many in the air.Such as the middle report of the 12nd volume the 1st phase " Chinese Journal of Health Laboratory Technology " in 2002, the negative staphylococcus recall rate of air set enzyme was 67.1% in the hospital; Report in the 04th phase of the 17th volume in 2000 " Chinese Disinfection magazine " that and for example the air-borne bacteria sum reaches more than 1767～4525cfu/m3 in the hospital.Air with antibacterial enters an extension bottle inner liquid medicine by the return-air pin, medicinal liquid has become air filtration liquid, airborne dust and antibacterial have all incorporated in the liquid, and the patient has inputted this liquid tend that is subject to severe contamination and untoward reaction occurred, even cross infection occurs.For this problem, the technical scheme that Chinese patent 200510096995 " portable abacterial transfusion system " is introduced is: comprise inflator, Pressure gauge, air accumulator, air disinfector, inflator injects pressure air in the air accumulator and stores, be provided with a pressure regulator in the middle of it, air accumulator is connected with pressure regulator one end pipe, the other end of pressure regulator is connected with the air sterillization organ pipe, the inner chamber of air disinfector is placed the cotton balls that is soaked with disinfectant solution, the pressure air by air accumulator force outside air through air disinfector cotton balls enter again and hang bottle.This apparatus structure with air accumulator and pressure regulator is complicated, and cost is high; Troublesome poeration, the difficult air pressure value of accurately controlling is hung in the bottle because inappropriate gases at high pressure enter, and affects the infusion safety quality, and not meeting in the extension bottle should be the standard-required of normal pressure.

The utility model content

The purpose of this utility model is to overcome defects, provide a kind of simple in structure, can the air of hanging in the bottle carries out disinfection and the gas-returning devices of the transfusion device of dedusting to entering, make the medicinal liquid that enters patient's vein not contaminated.

The technical scheme of this utility model safe medical transfusion device is: a kind of gas-returning devices of transfusion device, it is characterized in that described gas-returning devices is made of the plastic flexible pipe coiled coil, make and consist of the labyrinth gas channel in the flexible pipe, the upper orifice of flexible pipe is the gas outlet, be connected with the return-air pin that is used for grafting medicinal liquid extension bottle, lower nozzle is the air inlet that is communicated with outside air, is connected with air inlet pipe, is filled with disinfectant solution in the flexible pipe.

The flexible pipe of described coiled coil is packed in the cylindrical shell, and described cylindrical shell upper and lower side is threaded with loam cake and lower cover, and the return-air pin is embedded into and the loam cake integrated injection molding, and air inlet pipe is embedded into and the lower cover integrated injection molding.

Described air inlet pipe bottom outlet is filled in plug, and the aperture of air inlet pipe is less than 0.5mm.

The wall section of described cylindrical shell has transparent window.

Described disinfectant solution is ClO 2 solution or peroxide acetate aqueous solution.

This utility model is hung bottle with outside air through entering behind the disinfectant solution again, can kill antibacterial and virus in the outside air, and the grieshoch that contains is sterilized liquid and filters; This utility model volume is little, and is lightweight, and the labyrinth gas channel that flexible pipe consists of can prolong the time of contact of air in disinfectant solution, strengthens the killing effect to antibacterial and virus; Can prevent effectively that airborne pathogenic microorganism from entering human body with medicinal liquid.

Description of drawings

Fig. 1 is the sketch map that utilizes this utility model transfusion device.

Fig. 2 this utility model front view.

Fig. 3 is Fig. 2 vertical section structure figure.

The specific embodiment

With reference to Fig. 1 safe medical transfusion device, comprise and can hang bottle 1 transfusion needle that is connected, dropper 2, actuator 3, venipuncture needle 4 and connecting hose each other thereof with medicinal liquid, the return-air pin of this utility model gas-returning devices is connected in series an air disinfector 5 and is communicated with outside air.

With reference to Fig. 2, Fig. 3, the embodiment monnolithic case is the tubular structure that two ends are shaped with respectively air inlet and gas outlet, gas-returning devices is made of the plastic flexible pipe coiled coil, the flexible pipe 54 of coiled coil is packed in the cylindrical shell 53, cylindrical shell 53 upper and lower sides are threaded with loam cake 58 and lower cover 55, with the flexible pipe 54 that fixedly dwindles length, can prevent that also flexible pipe is squeezed in transportation, has the globality of product.The upper orifice of flexible pipe 54 is the gas outlet, is connected with the return-air pin 51 that is used for grafting medicinal liquid extension bottle, and lower nozzle is the air inlet that is communicated with outside air, is connected with air inlet pipe 57.Outside air enters from air inlet pipe 57 during transfusion, and the disinfectant solution such as ClO 2 solution or peracetic acid soln 6 that is filled with in flexible pipe passes through return-air pin 51 again, arrives the medicinal liquid top that hangs in the bottle, and the medicinal liquid top that prevents from hanging in the bottle produces negative pressure.Consist of the labyrinth gas channel in the flexible pipe of coiled coil, can in the situation of small volume, prolong at double the time of contact of air in medicinal liquid, be conducive to improve the killing effect to antibacterial and virus.Return-air pin 51 is embedded into and loam cake 58 integrated injection moldings, the tail end 52 of return-air pin 51 stretches in the loam cake and is communicated with the socket of flexible pipe 54 upper ends, air inlet pipe 57 is embedded into and lower cover 55 integrated injection moldings, and air inlet pipe 57 stretches in the lower cover and is communicated with sound construction, compactness with the socket of flexible pipe 54 lower ends.Air enters from air inlet pipe 57, and the aperture of air inlet pipe is between 0.1mm-0.5mm, and like this, because the aperture is less, its surface tension greater than the molecule of gas, can realize the obstructed liquid of ventilating less than the surface tension of disinfectant solution.For preventing that under unused state disinfectant solution spills and prevent to damage return-air pin 51 when the strenuous vibration, fill in plug 56 at the bottom outlet of air inlet pipe 57, at return-air pin 51 cover upper shields 59, the inner top surface of guard shield 59 is shaped with downward stifled pin, stifled pin size cooperates with the aperture of return-air pin 51, can prevent that accidental cause makes disinfectant solution spill from return-air pin 51 syringe needles in transportation.Extract plug 56 during use and guard shield 59 gets final product.For observing in use the air inlet situation, have transparent window 7 in the wall section of described cylindrical shell 53.

Claims

1. the gas-returning devices of a transfusion device, it is characterized in that described gas-returning devices is made of plastic flexible pipe (54) coiled coil, make and consist of the labyrinth gas channel in the flexible pipe, the upper orifice of flexible pipe is the gas outlet, be connected with the return-air pin (51) that is used for grafting medicinal liquid extension bottle, lower nozzle is the air inlet that is communicated with outside air, is connected with air inlet pipe (57), is filled with disinfectant solution (6) in the flexible pipe.

2. the gas-returning devices of transfusion device as claimed in claim 1, the flexible pipe (54) that it is characterized in that coiled coil is packed in the cylindrical shell (53), described cylindrical shell upper and lower side is threaded with loam cake (58) and lower cover (55), return-air pin (51) is embedded into and loam cake (58) integrated injection molding, and air inlet pipe (57) is embedded into and lower cover (55) integrated injection molding.

3. the gas-returning devices of transfusion device as claimed in claim 1 or 2 is characterized in that described air inlet pipe (57) bottom outlet fills in plug (56).

4. the gas-returning devices of transfusion device as claimed in claim 2 is characterized in that the wall section of cylindrical shell (53) has transparent window (7).

5. the gas-returning devices of transfusion device as claimed in claim 1 is characterized in that disinfectant solution (6) is ClO 2 solution or peroxide acetate aqueous solution.

6. the gas-returning devices of transfusion device as claimed in claim 1 is characterized in that return-air pin (51) has guard shield (59), and the inner top surface of guard shield (59) is shaped with downward stifled pin, and stifled pin size cooperates with the aperture of return-air pin (51).