CN201030113Y

CN201030113Y - Automatic sealing air Murphy's drip tube

Info

Publication number: CN201030113Y
Application number: CNU200720124254XU
Authority: CN
Inventors: 杨自忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-16
Filing date: 2007-05-16
Publication date: 2008-03-05
Anticipated expiration: 2017-05-16

Abstract

The utility model relates to an automatic air-sealing merphy conduct dropper, wherein the lower portion of a dropper (1) is conical, the upper end and the lower end of the dropper (1) are respectively connected with a liquid medicine inlet thin hose (2) and a liquid medicine outlet thin hose (3), a section of a rigid pipe (4) is arranged between the lower end of the dropper (1) and the liquid medicine outlet thin hose (3), the inner cavity of the dropper (1) is provided with an inner stopper (5) which can float on liquid, the upper portion of the inner stopper (5) conical shape which is engaged with the lower portion of the dropper (1), and the lower portion of the stopper (5) is cylindrical whose size is engaged with the inner diameter of the rigid pipe (4). Adopting the structure of the utility model, nobody is needed to be on duty, and air can be prevented entering into blood vessels of a human body automatically after a transfusion, thereby avoiding the phenomenon of air-plugging happening, and the employment is safer, more reliable, and worry-saving.

Description

Automatic occluded air Murphy type burette

Technical field

This utility model belongs to technical field of medical instruments, specifically, is to the improvement design of transfusion with Murphy type burette.

Background technology

Transfusion with Murphy type burette from inventing clinical practice so far, adopt infusion bottle epoch or disposable transfusion device epoch no matter be, its structure is not nearly all done any change, after being totally lost soon, liquid Transfusion needle pipe is extracted patient's health as untimely, atmospheric pressure can be among the input of the air in the tube for transfusion blood vessel, thereby the air embolism phenomenon occurs easily in transfusion patient blood vessel, severe patient can jeopardize patient's life.

At present normally tubule above the Murphy type burette or below the clamp type switching device is set on the tubule, the clamp type switching device stops air or liquid communication by flattening tubule.Clinically by nursing staff, nurse or patient's close observation transfusion situation, in case finding liquid is totally lost soon, closed clip subtype switching device then, make the nurse that Transfusion needle pipe is extracted then, the mode of this passive prevention air admission blood vessel requires the nursing staff must duty to patrol the room to check, patient oneself also dare not have a rest, thereby has increased patient's psychological fear and nursing staff's working strength.

The utility model content

Problem to be solved in the utility model provides a kind of automatic occluded air Murphy type burette, and it is on duty that this dropper need not the people, and the liquid of being totally lost can prevent the air admission human vas automatically.

For this reason, the automatic occluded air Murphy type burette that this utility model provides, the dropper bottom is conical, the upper and lower side of dropper respectively with advance the medicinal liquid small hose and go out the medicinal liquid small hose to link to each other, dropper lower end and go out one section hard tube is arranged between the medicinal liquid small hose, be placed with the interior plug that can be suspended in liquid in the dropper inner chamber, interior portion beyond the Great Wall is the taper shape that matches with the dropper bottom, the bottom of interior plug be cylindrical and big or small and the hard tube internal diameter suitable.

Owing to be placed with the interior plug that can be suspended in liquid in the dropper inner chamber, the medicinal liquid in infusion process in the dropper maintains certain height all the time in this utility model, and therefore interior plug is in suspended state, and interior plug lower cylindrical shape part can not enter hard tube.When transfusion is finished soon, no longer including medicine liquid droplet in the medicinal liquid small hose advances in the dropper, medicinal liquid liquid level in the dropper begins to descend, interior plug also makes cylindrical part enter hard tube along with decline and the hard tube inwall closely pastes mutually, stop the continuation of medicinal liquid to be flowed, thereby prevent air admission patient blood vessel automatically, avoided the generation of air embolism phenomenon, make transfusion more safely, save worry.

Description of drawings

Fig. 1 is a structural representation of the present utility model, also is the sketch map that interior plug 5 is in suspended state in the infusion process.

Fig. 2 is that plug 5 sinks hard tube 4 obstructions view firmly in infusing when finishing.

The specific embodiment

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.

As shown in Figure 1, a kind of automatic occluded air Murphy type burette, dropper 1 bottom is conical, the upper and lower side of dropper 1 respectively with advance medicinal liquid small hose 2 and go out medicinal liquid small hose 3 to link to each other, dropper 1 lower end and go out one section hard tube 4 is arranged between the medicinal liquid small hose 3, the size of hard tube 4 is with to go out medicinal liquid small hose 3 identical, length is that 5～10mm is advisable, be placed with the interior plug 5 that can be suspended in liquid in dropper 1 inner chamber, in the plug 5 tops are the taper shapes that match with dropper 1 bottom, the bottom of interior plug 5 be cylindrical and big or small and hard tube 4 internal diameters suitable.The medicinal liquid of 1 li in dropper maintains certain height all the time in infusion process, therefore in plug 5 be in suspended state, interior plug 5 lower cylindrical shapes part can not enter hard tube 4, referring to Fig. 1.When transfusion is finished soon, no longer including medicine liquid droplet in the medicinal liquid small hose 3 advances in the dropper 1, the medicinal liquid liquid level that dropper is 1 li begins to descend, interior plug 5 also makes cylindrical part enter hard tube 4 along with decline and hard tube 4 inwalls closely paste mutually, referring to Fig. 2, stop the continuation of medicinal liquid to be flowed, thereby prevent air admission patient blood vessel automatically, avoided the generation of air embolism phenomenon, make transfusion more safely, save worry.

As can be seen from Figure 1: interior plug 5 is made of plastic, and its tapered portion is a vacuum structure, and lower cylindrical shape is a solid construction, and adopting this structure is in order to strengthen its suspending power in medicinal liquid.Certainly, also available other material manufacture of interior plug 5 also adopts other structure, as long as can in medicinal liquid, suspend, in case and its cylindrical part enter hard tube 4 and just can realize that just reliable obstruction can.

Claims

1. automatic occluded air Murphy type burette, dropper (1) bottom is conical, the upper and lower side of dropper (1) respectively with advance medicinal liquid small hose (2) and go out medicinal liquid small hose (3) to link to each other, it is characterized in that: described dropper (1) lower end and go out one section hard tube (4) is arranged between the medicinal liquid small hose (3), be placed with the interior plug (5) that can be suspended in liquid in dropper (1) inner chamber, interior plug (5) top is the taper shape that matches with dropper (1) bottom, and the bottom of interior plug (5) is that cylindrical and big or small and described hard tube (4) internal diameter is suitable.

2. automatic occluded air Murphy type burette according to claim 1 is characterized in that: plug (5) is made of plastic in described, and its tapered portion is a vacuum structure, and lower cylindrical shape is a solid construction.