CN201481915U

CN201481915U - Direct-reading medical transfusion flowmeter

Info

Publication number: CN201481915U
Application number: CN2009200127647U
Authority: CN
Inventors: 宋琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-08
Filing date: 2009-04-08
Publication date: 2010-05-26
Anticipated expiration: 2019-04-08

Abstract

The utility model relates to a device which is convenient for fast, accurately and directly reading flow speed in the process of medical venous transfusion. The function of the device is realized by the theory of a floater flow meter. The direct-reading medical transfusion flow meter comprises a reading pipe and a floater. When in use, the floater is suspended at a certain position in the reading pipe under the actions of self-gravitation, flotage difference and upper-lower end liquid flow pressure difference. When the flow speed changes, the floater moves up and down to obtain balance again under the action of the upper-lower end liquid flow pressure difference thereof. The medicine liquid in an transfusion apparatus can be directly read through the calibration corresponding to the suspension position of the floater, namely the flow speed. Therefore, the flow meter eliminates the links for repeatedly timing, counting drops and computing drop speed in the existing transfusion apparatus, thereby achieving the purposes of accurately feeding medicine, saving adjustment time and improving medical care efficiency.

Description

Direct-reading medical infusion current meter

Affiliated technical field

This utility model relates to a kind of medical apparatus and instruments, and especially any time in the medical transfusion process can both directly be read the characteristics of the instant flow velocity of transfusion device herb liquid.

Background technology

Venous transfusion is the means of administration that often adopts in medical procedure.According to the different state of an illness or medicine, the speed of transfusion is most important.Now calculating injection speed with transfusion device, all is to measure by the number that drips to the Murphy tube unit interval.When the accurate transfusion speed of needs, often need repeatedly to repeat " speed governing, clock, several, calculate and drip speed " program just can finish adjusting.Lose time.For addressing this problem, more existing associated electrical series products come out.But, make its very difficult popularization and application because of factor affecting such as it cost an arm and a leg, is inconvenient to move.

Summary of the invention

This utility model is a principle of utilizing suspended body flowmeter, and any time that is implemented in the infusion process can both directly be read the purpose of instant infusion flow rate, thereby improves medical care efficient greatly.

The technical scheme that its technical problem that solves this utility model adopts is: this utility model is made of reading tube and float two parts.Wherein reading tube has the chamber of awl, outer graduated transparent tube body in being, and indicates respectively through the back of converting corresponding droplet number and volume unit in the scale both sides.Float then is to be slightly larger than water or to be slightly less than the cone that the material of water is made by certain tapering with density, and is placed in the reading tube.

When medicinal liquid is full of and flow through annulus between float of reading tube and reading tube.Float is poor with the gravity, the buoyancy that are subjected to self simultaneously, and float up and down the two ends liquid stream is to its action of pressure, a certain height in reading tube hovers.If flow velocity changes, float can be thereon, down two ends flow stream pressure difference effect down and move up and down, the annulus sectional area between itself and the reading tube is changed, and then regains balance.Can read scale corresponding on the reading tube by the position of hovering of float thus, obtain the instant flow velocity of transfusion device herb liquid.Therefore saved and repeatedly repeated in the past the link of " clock, several, calculate and drip speed " owing to realized " direct-reading flow velocity ".And then reach accurate injection speed, and save the adjusting time, improve the purpose of medical treatment and nursing efficient.

Because the difference of float the selection of material, this utility model has two states:

1, when float density during less than water, the gravity of float, buoyancy difference are negative value, float come-up during no liquid stream, and reading tube and float are all made point upward and are " A " type.Medicinal liquid enters from top to bottom, and reading tube scale top is zero start bit.

2, when float density during greater than water, the gravity of float, buoyancy difference are that reading tube and float are all made pointed end and be " V " type on the occasion of, float come-up during no liquid stream.Medicinal liquid enters from bottom to top, and reading tube scale below is zero start bit.

Description of drawings

Accompanying drawing is the sketch map (is example less than the float of water with density of material) of this utility model direct-reading medical infusion current meter.

Among the figure 1, reading tube, 2, float.

The specific embodiment

After this utility model scurried into disposable transfusion device.When medicinal liquid was full of from top to bottom and flow through reading tube, it is poor that float (2) is subjected to self gravity, buoyancy simultaneously, and up and down two ends flow stream pressure difference effect and be equilibrated at a certain position in the reading tube (1).If flow velocity changes, float (2) will thereon, move up and down under the effect of time two ends flow stream pressure difference, its annulus sectional area between reading tube (1) changed, and then regain balance.Can read reading tube (1) by the position of hovering of float (2) thus and go up corresponding scale, obtain the instant flow velocity of transfusion device herb liquid.

Claims

1. direct-reading medical infusion current meter has graduated transparent reading tube outside the awl chamber in it is characterized in that one piece of taper float placed.

2. according to its further feature of direct-reading medical infusion current meter described in the claim 1 be: indicate droplet number and volume unit corresponding after converting respectively in reading tube scale both sides.

3. according to its further feature of direct-reading medical infusion current meter described in the claim 1 be: float is to be slightly less than water or to be slightly larger than the cone that the material of water is made by certain tapering with density.

4. according to its further feature of direct-reading medical infusion current meter described in the claim 3 be: when selecting density for use less than the float of water, reading tube and float are all made point upward and are " A " type, injection enters from top to bottom, and reading tube scale top is zero start bit; When selecting for use density to be slightly larger than the float of water, reading tube and float are all made pointed end and are " V " type, and injection enters from bottom to top, and reading tube scale below is zero start bit.