CN2401194Y

CN2401194Y - Transfusion flowmeter

Info

Publication number: CN2401194Y
Application number: CN 99255836
Authority: CN
Inventors: 赵光
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-10
Filing date: 1999-12-10
Publication date: 2000-10-18
Anticipated expiration: 2009-12-10

Abstract

The utility model relates to a transfusion flowmeter. Connecting pipes are arranged on and under a cylindrical outer shell, and the inner part of the outer shell and the lower end of the upper connecting pipe are provided with funnel-shaped pipes. The inner parts of the upper and the lower end openings of small straight pipes at the lower ends of the funnel-shaped pipes are provided with blocking sheets, and small floating sheets are arranged between the blocking sheets. The upper end surface of the outer shell is provided with a flexible pipe which is communicated with the inner part of the cylindrical outer shell, and a small ball which can move is clamped in the flexible pipe. The utility model has the advantages of simple structure and convenient use. The transfusion flowmeter can be optionally moved and used, and is used in movement. The condition that air in the transfusion flowmeter enters human bodies is not caused, and the danger that transfusion air enters human bodies is avoided.

Description

The infusion flow device

This utility model belongs to the transfusion dropper, particularly a kind of infusion flow device.

The infusion flow device is that liquid medicine is guided to the intermediate link of syringe needle from medicinal fluid bag, plays important effect.Play the effect of metered flow.Common infusion flow device in use must maintain a semiliquid, and half air can show dropping liquid.Common infusion flow device uses in moving, and causes the air admission human body in the infusion flow device easily, causes danger.

The purpose of this utility model provides a kind of infusion flow device, overcomes the shortcoming and defect of prior art.

The purpose of this utility model is achieved in that

A kind of infusion flow device, it is characterized by: columniform shell is arranged, and shell is upper and lower connecting leg, and the lower end with last connecting leg in columniform shell is connected with the funnel-form pipe, there is catch the inside of the upper and lower port of little straight tube of the lower end of funnel-form pipe, between the inner catch of upper and lower port little floating sheet is arranged.

Also have flexible pipe on the columniform shell upper surface, soft pipe connection is in columniform shell, and card has movably bead in the flexible pipe.

The little groove of the depression that having outside the columniform shell to link to each other with suspension place hangs usefulness.

The utility model has the advantages that:

Simple in structure, easy to use, this infusion flow device can arbitrarily move use, uses in moving, and can not cause the air admission human body in the infusion flow device, has avoided the danger of transfusion air admission human body.

Below in conjunction with description of drawings embodiment:

Fig. 1 is an infusion flow device structural representation

Fig. 2 is an infusion flow device funnel-form tube portion sketch map

For fear of the generation of infusion flow device unsafe factor, under the prerequisite that does not reduce infusion flow device function, carry out design again.

A kind of infusion flow device, columniform shell 1 is arranged, columniform shell is upper and lower connecting

leg

2,3, lower end at columniform enclosure and last connecting leg is connected with funnel-form pipe 4, there is

catch

6,7 inside of the little straight tube 5 upper and lower ports of the lower end of funnel-form pipe, between the inner catch of upper and lower port little floating sheet 8 is arranged.Also have flexible pipe 9 on the upper surface of columniform shell, soft pipe connection is to columniform shell, and card has movably bead 10 in the flexible pipe.The little groove 11 of the depression that having outside the columniform shell to link to each other with suspension place hangs usefulness.

Specifically this infusion flow device shell is a transparent column shape, two Side have one to be used for the depression that links to each other with suspension place of infusion flow device, a rubber tube that includes bead is arranged (in close proximity between bead and the rubber tube at ordinary times on the top of shell, keep sealing state, only when the rubber tube at bead place is pinched pleat by hands, could expose a space between bead and rubber tube, this space can be used for ventilating).Have one closely to link to each other with the tube for transfusion on top like obconic funnel in the inside of shell, in the funnel centre a little floating sheet lighter than water is arranged, it can fluctuate along funnel under the effect of power in water.When medicinal liquid flows into the infusion flow device from tube for transfusion, when liquid level constantly raise in the infusion flow device, little floating sheet was held up by medicinal liquid.By the time after medicinal liquid is full of whole infusion flow device, do not stay any air, so just avoided the possibility of air with medicinal liquid input human body, guaranteed transfusion safety, at this moment little floating sheet is held up the top of funnel, this moment buoyancy＞gravity, when transfusion is carried out liquid medicine when flowing through from top to bottom, little floating sheet has been produced a downward impulse force, at this moment impulse force+gravity＞buoyancy arranged, thereby force little floating sheet to move down a segment distance, when moving to impulse force '+static and remain on this position relatively during gravity=buoyancy.Because the impulse force size is relevant with the mobile speed of medicinal liquid, so distance that can move down according to little floating sheet, infer the flow velocity and the flow of medicinal liquid, and according to the practical situation of infusion flow device, the numerical relation imprinting between amount of moving down that calculates and the medicinal liquid flow on infusion flow device hopper walls, standard as weighing the medicinal liquid flow velocity makes user can recognize the flow velocity of medicinal liquid at any time, and transfusion always is controlled in safety and stability state at the uniform velocity and carries out like this.Such design has just changed the form and the structure of original common transfusion flow calorimeter, and under the prerequisite that does not reduce infusion flow device function, make the needs of its integral body according to the invention, become a safety, reliably, practical transfusion infusion flow device, this transfusion device remaining part except that the infusion flow device is identical with general infusion set.Concrete operational approach: the nursing staff should at first close and regulate card, then the big syringe needle of transfusion device is thrust medicinal fluid bag, take the photograph out the rubber tube of being close to bead, after having made it a space, medicinal liquid can flow in the infusion flow device automatically, automatically discharge the air in infusion flow device and the transfusion device epimere simultaneously, behind full tube for transfusion epimere of medicinal liquid stream and infusion flow device, unclamp the rubber tube of taking the photograph out, open and regulate card, allow medicinal liquid be full of tube for transfusion hypomere and put the stream pin gradually again, thereby be full of whole transfusion device, stay with stand-by this moment.As when following two kinds of situations, following operation: when (1) emergency adds other medicines in the infusion flow device when in transfusion the time, can draw medicinal liquid earlier with empty needle, puncture rubber tube then, inject in the infusion flow device, suitable it of medicinal liquid enters into vein.(2) in transfusion, if one bag of medicinal liquid is totally lost, when needing to fail continuously next group medicinal liquid, should close earlier and regulate card, extract the big syringe needle in medicinal fluid bag then, from the medicinal fluid bag space, take out exhausted medicinal fluid bag, put into new medicinal fluid bag, and then a big syringe needle thrust in the new medicinal fluid bag, outward winding regulate card after, begin to continue transfusion.When changing medicinal fluid bag, when having bubble to enter tube for transfusion accidentally, can enter it in the infusion flow device earlier, take the photograph out the rubber tube of being close to bead, discharge the infusion flow device.

Because global design of the present utility model, the infusion flow device can arbitrarily move use,

Claims

1, a kind of infusion flow device, it is characterized by: columniform shell is arranged, shell is upper and lower connecting leg, lower end with last connecting leg in columniform shell is connected with the funnel-form pipe, there is catch the inside of the upper and lower port of little straight tube of the lower end of funnel-form pipe, between the inner catch of upper and lower port little floating sheet is arranged.

2, infusion flow device according to claim 1 is characterized by: also have flexible pipe on the columniform shell upper surface, soft pipe connection is in columniform shell, and card has movably bead in the flexible pipe.

3, infusion flow device according to claim 1 is characterized by: the little groove of the depression that having outside the columniform shell to link to each other with suspension place hangs usefulness.