KR101638139B1 - Cylinder Tube Type Linear Flow Regulating Apparatus for Intravenous Infusion - Google Patents

Abstract

Disclosed is a linear flow rate regulating device for injecting a cylinder tubular fluid. The linear flow rate regulating device for injecting a cylinder tubular fluid according to an embodiment of the present invention is a flow rate regulating device for injecting fluid used in a fluid set including a linear flow rate regulating device for regulating the flow rate by regulating the flow path width of the flow channel part The apparatus 800 includes a through hole 110 penetrating from a top surface to a bottom surface with a first inner diameter d1 and having a fluid inlet 120 and a fluid outlet 130, Shaped housing part (100); A cylindrical sealing portion 210 having a first outer diameter D1 that is the same as the first inner diameter d1 of the through hole 110 of the housing portion 100 and a second sealing portion 210 extending from the sealing portion 210, And a cylindrical channel forming part 220 formed in a cylindrical shape with a second outer diameter D2 smaller than the inner diameter d1 of the housing part 100. The flow channel part 220 is formed to be inserted into and discharged from the through hole 110 of the housing part 100, A control unit 200; And the inner surface of the through hole 110 of the housing part 100 and the outer surface of the channel forming part 220. The width b of the flow path is adjusted by changing the position of the flow channel adjusting part 200 And a flow channel unit 300 to be changed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cylinder-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder-type linear flow rate regulating device configured to linearly control the injection amount of a fluid in a flow rate regulating device used in a fluid-set or the like.

As shown in FIG. 1, an intravenous injection system for administering a liquid solution into a vein is provided with a liquid bag 10 containing a liquid and a liquid container 10 which is inserted into a sealing cap of the liquid bag 10, A point dispenser 12 fixed to the lower end of the introducing needle 11 and allowing the liquid to drop in a form of drop from the inside thereof, a sap needle 13 inserted into the vein, A connection pipe 14 connecting between the drop port 12 and the sap tube 13 to serve as an infusion passage for the infusion liquid and a connection pipe 104 disposed between the connection pipe 104 to adjust the flow rate of the infusion liquid, And a regulator 20.

Generally, one set is made up of the introduction needle 11, the drop tube 12, the sap needle 13, the connection tube 14, and the fluid flow controller 20, . When the liquid set is connected to the liquid bag 10 and the liquid is injected continuously into the same patient after the liquid is injected, only the spent liquid bag 10 may be replaced. In addition, the drops falling from the inside of the drop tube 12 are made so that the drop of liquid drops in the form of water droplets and have a constant volume. For example, one droplet is made to be 20 drops per 1 cc of liquid, do. Therefore, by measuring the cycle in which the drop in the dropping tube 12 falls, the flow rate of the liquid injected through the liquid set can be calculated.

When the infusion fluid is injected into the patient, the injection flow rate is prescribed according to the type of the infusion fluid, the type of the medicament mixed with the infusion fluid, the patient's condition, the type of illness afflicted, and the fluid flow rate regulator 20 is injected at the prescribed flow rate. .

If the flow rate of the injected fluid is not adjusted to the prescribed flow rate, it is a cause of a medical accident. Therefore, it is very important to control the flow rate of the fluid. The fluid flow rate controller 20 controls the cross- And the flow rate of the infusion fluid can be adjusted by operating the operating section 21. [0031]

Referring to FIG. 2, the structure of the conventional liquid flow rate regulator 20 is referred to as a roller clamp. The operation portion 21 is provided in a roller type. In detail, the operation unit 21 that presses the connection pipe 14 after passing through the connection pipe 14 in the upper and lower openings 22 can be moved in the longitudinal direction.

As the depth of the groove 22 becomes shallower toward the bottom and the connecting pipe 14 becomes more pressed as the operating portion 21 moves downward, the flow rate is measured for each moving position while moving the operating portion 21 The injection flow rate of the liquid is adjusted in such a manner that the movement of the operation section 21 is stopped when the desired flow rate is reached.

However, the fluid-flow controller 20 of the roller-clamp type shown in Figs. 1 and 2 needs to measure the flow rate while observing the drip tray 12 every time the roller-type controller 21 is moved, The operation has to be repeated, and the accuracy of the flow control is also low.

A major problem of such a conventional roller clamp type liquid flow rate regulator 20 is that it is difficult to control the flow rate. In the conventional liquid flow rate regulator 20, the flow rate is adjusted by pressing the connection pipe 14 And the flow area is adjusted. When the connecting pipe 14 is pressed, the cross section of the connecting pipe 14 is deformed from a circular shape to a flat elliptical shape, and the cross-sectional area and the hydraulic radius are reduced, and the flow rate is reduced.

When the flow in the circular tube is a steady flow and it is assumed to be a laminar flow, the Hagen-Poiseille law in pipe shown in Equation 1 below is applied, Since the flow rate is not linear in proportion to the length of the tube and proportional to the fourth power of the radius, it is difficult to control the flow accurately by changing the length or the radius of the cylindrical tube.

≪ Formula 1 >

(Where Q is the flow rate ,? P is the differential pressure in the pipe, r ₀ , Μ is the fluid viscosity, and l is the tube length.)

Even in a cylindrical tube having such a simple structure, the flow rate control by the change of the diameter and the length is nonlinear and complicated. However, in the roller clamp type flow rate controller, the change of the flow path cross-section and the length is more complicated.

In addition, there is a cylindrical rotary type flow rate controller, a clock type flow rate regulator, a metering pump, and the like, as well as the above-mentioned Roller Clamp, Similarly, the flow path area is changed by the rollers. However, it is difficult to control the flow amount by the above-described Equation (1) because the control of the size, shape, hydraulic radius, etc. of the flow path area is uneven, The pressure of the capillary tube is controlled by controlling the length of the capillary tube (the pressure is proportional to the rotation angle), which is also the same as that of the above-described Equation 1, It is difficult to control the flow rate.

In addition, in the case of the above-described metering pump, it is disadvantageous in that it is expensive, is inconvenient to install and use due to its large size, requires a separate power source, and has a high risk of infection due to use by several persons.

Korean Patent Publication No. 10-2003-0014823 (published on Feb. 20, 2003)

It is an object of the present invention to provide a cylinder-type fluid-injecting linear flow rate control device capable of controlling linearly with respect to a flow rate of a fluid flowing through the inside of a flow channel section by providing a flow channel section whose width is changed by changing the position of the flow- And to provide a regulating device.

According to an aspect of the present invention, there is provided a linear flow rate adjusting apparatus for injecting fluid into a cylinder tube,

A linear flow rate regulating device for injecting liquid into a cylinder tube type fluid flow regulating device for use in a liquid set for regulating a flow rate by regulating a flow path width of a flow channel part,

A cylindrical housing part having a through hole penetrating from the top surface to the bottom surface with a first inner diameter d1 and having a fluid inlet and a fluid outlet which are penetrated to face each other on the circumferential surface;

And a second outer diameter (D2) extending from the closed portion and smaller than the first inner diameter (d1), wherein the first outer diameter (D1) is the same as the first inner diameter (d1) of the through- A flow channel regulating unit having a cylindrical channel forming part formed in a cylindrical shape and operated to be inserted into and discharged from a through hole of the housing part; And

A flow channel part formed by the inner surface of the through hole of the housing part and the outer surface of the channel forming part and the width b of the flow path is changed by changing the position of the flow channel adjusting part;

. ≪ / RTI >

In one embodiment, the second outer diameter D2 of the channel forming portion may be 90.00 to 99.99% of the first inner diameter d1 of the through-hole.

In one embodiment, the linear flow rate regulating device for injecting the cylinder tubular fluid,

And a fine adjustment unit mounted on an upper surface or a lower surface of the housing unit to introduce and discharge the flow channel adjustment unit into a through hole of the housing unit.

In this case, one side surface of the flow channel adjuster is formed with a groove formed in the inner surface thereof,

Wherein the fine adjustment portion includes a protrusion formed on an outer circumferential surface of a thread having a structure corresponding to a thread formed in the groove portion of the flow channel adjustment portion,

And the flow channel adjuster can be inserted into or discharged from the through hole of the housing part by the rotation of the fine adjustment part.

A gauge may be formed in the vicinity of the fine adjustment part so that when the flow channel control part is inserted into and discharged from the through hole of the housing part, the flow rate of the liquid flow due to the change in the flow channel area of the flow channel part can be known.

In one embodiment, the fluid inlet of the housing portion is provided with an inlet pipe connection portion through which the inlet pipe can be installed to allow the fluid to flow into the flow channel portion,

The fluid outlet of the housing part may be provided with a discharge pipe connection part through which a discharge pipe can be installed to discharge the fluid from the flow channel part.

In one embodiment, a sealing member may be further provided between the inner surface of the through-hole of the housing portion and the outer circumferential surface of the flow channel regulating portion.

In this case, the sealing member may be mounted on the outer peripheral surface of the closed end of the flow channel adjusting portion and the inner surface of the through hole of the housing portion.

Also, the sealing member may be an O-ring.

According to another aspect of the present invention, there is provided a linear flow rate adjusting apparatus for injecting fluid into a cylinder-

A linear flow rate regulating device for injecting liquid into a cylinder tube type fluid flow regulating device for use in a liquid set for regulating a flow rate by regulating a flow path width of a flow channel part,

A cylindrical housing part having a through hole penetrating from a top surface to a bottom surface with a first inner diameter (d) and having a fluid inlet and a fluid outlet which are penetrated so as to face each other on a circumferential surface;

A cylindrical flow channel regulator formed to have a first outer diameter (D) smaller than a first inner diameter (d) of the through hole of the housing part and operated to be inserted into and discharged from the through hole of the housing part; And

A flow channel part formed by the inner surface of the through hole of the housing part and the outer surface of the flow channel control part and the width b of the flow path is changed by changing the position of the flow channel control part;

. ≪ / RTI >

In one embodiment, the first outer diameter D of the flow channel adjuster may be 90.00 to 99.99% of the first inner diameter d of the through-hole.

In one embodiment, the linear flow rate regulating device for injecting the cylinder tubular fluid,

And a fine adjustment unit mounted on an upper surface or a lower surface of the housing unit to introduce and discharge the flow channel adjustment unit into a through hole of the housing unit.

In this case, one side surface of the flow channel adjuster is formed with a groove formed in the inner surface thereof,

Wherein the fine adjustment portion includes a protrusion formed on an outer circumferential surface of a thread having a structure corresponding to a thread formed in the groove portion of the flow channel adjustment portion,

And the flow channel adjuster can be inserted into or discharged from the through hole of the housing part by the rotation of the fine adjustment part.

A gauge may be formed in the vicinity of the fine adjustment part so that when the flow channel control part is inserted into and discharged from the through hole of the housing part, the flow rate of the liquid flow due to the change in the flow channel area of the flow channel part can be known.

In one embodiment, a sealing member may be further provided between the inner surface of the through-hole of the housing portion and the outer circumferential surface of the flow channel regulating portion.

The present invention can also provide a medical device characterized by including a linear flow rate adjusting device for infusion of the fluid.

As described above, according to the linear tubular flow control device for injecting fluid into the cylinder tubular type of the present invention, by providing the flow channel portion in which the width of the flow channel is changed by changing the position of the flow channel control portion, A linear control is possible with respect to the flow rate of the fluid.

According to the present invention, there is provided a linear flow rate adjusting apparatus for injecting fluid into a cylinder tubular fluid infusion device, comprising: a microcontroller mounted on an upper surface or a lower surface of a housing part for inserting and discharging a flow channel adjusting part into a through hole of a housing part; Can be precisely and finely adjusted, resulting in accurate and stable flow control.

According to the present invention, there is provided a sealing member between the inner surface of the through hole of the housing part and the outer circumferential surface of the flow channel adjusting part to prevent the liquid from flowing out to the outside have.

Further, according to the medical instrument including the linear tubular flow control device for injecting the cylinder tubular fluid of the present invention, it is possible to provide a safe and effective medical service by providing the linear flow control device capable of accurately and stably controlling the flow rate.

1 is a perspective view showing a set of liquids according to the prior art.
FIG. 2 is a cross-sectional view showing the structure of a roller clamp type fluid flow rate controller applied to FIG. 1. FIG.
3 is a perspective view showing a linear flow rate regulating apparatus for injecting fluid into a cylinder-tubular fluid according to the present invention.
4 is a front view showing the linear flow control device for injecting fluid into the cylinder tubular fluid shown in Fig.
5 is a side view showing the linear flow rate adjusting apparatus for injecting fluid into the cylinder tubular fluid shown in FIG.
FIG. 6 is an exploded view of a linear flow rate adjusting apparatus for injecting a cylinder tubular fluid according to the present invention.
Fig. 7 is a front perspective view showing the housing portion of the linear flow rate adjusting device for injecting fluid of cylinder tubular fluid shown in Fig. 6; Fig.
8 is a side perspective view showing the housing portion of the linear flow rate adjusting apparatus for injecting fluid of cylinder tubular type shown in Fig.
FIG. 9 is a front view showing a state in which the flow channel adjusting unit, the fine adjusting unit, and the adjusting unit fixing member of the linear flow rate adjusting device for injecting fluid of cylinder tubular fluid shown in FIG. 6 are assembled.
10 is a front view showing a state where the position of the flow channel control unit is changed by the rotation of the fine adjustment unit.
11 is a front sectional view showing a state in which the flow channel width b of the flow channel portion is '0' by the flow channel adjusting portion of the linear flow rate adjusting device for injecting a cylinder tubular fluid according to the present invention, that is, a sealed state.
12 is a sectional view taken along the line A-A 'shown in FIG.
13 is a front sectional view showing a state in which the flow channel b of the flow channel part is increased by the flow channel adjusting part of the linear flow rate adjusting device for injecting fluid into the cylinder tube type fluid infusion chamber according to the present invention,
14 is a B-B 'sectional view of FIG. 13;
FIG. 15 and FIG. 16 are diagrams for explaining how the flow channel (b) of the flow channel portion is changed by the flow channel adjusting portion of the linear flow rate adjusting device for injecting fluid into the cylinder tube type liquid inflow tube according to the present invention. Fig.
17 is a schematic diagram showing parameters applied to the Hagen-Poiseuille law by simplifying a linear flow rate control apparatus for injecting a cylinder tubular fluid according to the present invention.
FIG. 18 is a graph showing the relationship between the theoretical result obtained by the theoretical equation and the theoretical result obtained by changing the flow rate (b) of the flow channel part by the flow channel adjusting part, using the linear flow rate adjusting device for injecting the cylinder- FIG.
FIG. 19 is a side view showing a linear flow rate adjusting apparatus for injecting a cylinder tubular fluid according to another embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited thereto. In the description of the present invention, a detailed description of known configurations will be omitted, and a detailed description of configurations that may unnecessarily obscure the gist of the present invention will be omitted.

3 is a perspective view showing a linear flow rate adjusting apparatus for injecting a cylinder tubular fluid according to the present invention, and FIG. 4 is a front view showing a linear flow rate adjusting apparatus for injecting a cylinder tubular fluid shown in FIG. 5 is a side view showing the linear flow rate adjusting device for injecting fluid of the cylinder tubular type shown in Fig. FIG. 6 is an exploded view of the linear flow rate adjusting device for injecting a cylinder tubular fluid according to the present invention.

Referring to these figures, a linear tubular flow control device 800 for injecting a cylinder tubular fluid according to the present embodiment includes a housing part 100, a flow channel adjusting part 200, and a fine adjusting part 400 .

6, an inlet pipe connection part 610 is provided in the fluid inlet 120 of the housing part 100 so as to allow the inflow pipe to flow into the flow channel part 300, Can be installed. The fluid outlet 130 of the housing part 100 may further include a discharge pipe connection part 620 through which a discharge pipe can be installed to discharge the fluid from the flow channel part 300.

Hereinafter, each part of the linear flow control device 800 for injecting a cylinder-tubular fluid according to the present embodiment will be described in detail.

FIG. 7 is a front perspective view showing a housing part of the linear tubular fluid control device for injecting fluid into the cylinder tubular body shown in FIG. 6, and FIG. 8 is a side view showing the housing part of the linear tubular fluid control device for injecting fluid, A perspective view is shown.

Referring to these drawings, the housing part 100 according to the present embodiment has a through hole 110 penetrating from the top surface to the bottom surface with a first inner diameter d1, and has a fluid inlet (120) and a fluid outlet (130).

7, a sealing member 710 may be further installed between the inner surface of the through hole 110 of the housing part 100 and the outer circumferential surface of the flow channel adjusting part 200. As shown in FIG. A sealing member 710 can be mounted between the fluid inlet 120 and the inlet pipe connection 610 when the inlet pipe connection portion 610 and the outlet pipe connection portion 620 are additionally mounted, The sealing member 710 may be mounted between the discharge pipe connecting portion 130 and the discharge pipe connecting portion 620. The sealing member 710 is not particularly limited as long as it is a member that can prevent the outflow of fluid, and may be, for example, an O-ring. The linear flow rate regulating device for injecting the cylinder tube type liquid infusion according to the present embodiment in which the sealing is further strengthened by the sealing member 710 can prevent the outflow of the fluid in advance.

FIG. 9 is a front view showing a state in which the flow channel adjusting unit, the fine adjusting unit and the adjusting unit fixing member of the linear tubular flow adjusting device for injecting fluid of the cylinder tubular type shown in FIG. 6 are assembled. And the position of the flow channel control unit is changed by the control unit.

7, the flow channel adjusting unit 200 according to the present embodiment has a first outer diameter D1 equal to the first inner diameter d1 of the through hole 110 of the housing part 100, And a cylindrical channel forming portion 220 extending from the sealing portion 210 and formed of a second outer diameter D2 having a size smaller than the first inner diameter d1 Lt; / RTI > In addition, the flow channel control unit 200 may be structured to be operated to be inserted into and discharged from the through hole 110 of the housing unit 100.

9, a sealing member 710 may be further attached to the outer circumferential surface of the end portion of the sealing portion 210 of the flow channel adjusting portion 200. As shown in FIG. The sealing member 710 may maintain the sealing between the inner surface of the through hole 110 of the housing part 100 and the outer circumferential surface of the flow channel adjusting part 200. Therefore, the sealing member 710 is not particularly limited as long as it is a member that can prevent the outflow of fluid, and may be an O-ring, for example.

5, the fine adjustment part 400 may be mounted on the upper or lower surface of the housing part 100 so that the flow channel adjusting part 200 is inserted into the through hole 110 of the housing part 100, Or the like.

9, the flow channel regulating unit 200 has a groove 230 formed at one side thereof with a thread on the inner surface thereof and the fine regulating unit 400 includes a flow channel regulating unit 200, And a protrusion 410 formed on the outer circumferential surface of a thread having a structure corresponding to that of the thread formed on the groove 230 of the groove 230.

10, the linear flow rate adjusting apparatus 800 for injecting fluid into the cylinder tubular fluid infusion system according to the present embodiment including such a configuration is configured such that the rotation of the fine adjustment unit 400 causes the flow channel adjustment unit 200 Can be inserted into or discharged from the through-hole 110 of the housing part 100. [

11 is a front sectional view showing a state in which the flow channel width b of the flow channel portion is '0' by the flow channel adjusting portion of the linear tubular flow adjusting device for injecting fluid of the cylinder tube type according to the present invention, that is, And FIG. 12 is a sectional view taken along the line A-A 'shown in FIG. 13 is a front sectional view showing a state in which the flow channel b of the flow channel portion is increased by the flow channel adjusting portion of the linear flow rate adjusting device for injecting fluid into the cylinder tubular fluid according to the present invention, Fig. 14 is a sectional view taken along the line B-B 'shown in Fig.

11 and 12, the flow channel regulator 200 according to the present embodiment has a first outer diameter D1 equal to the first inner diameter d1 of the through hole 110 of the housing part 100 And may include a cylindrical sealing portion 210 formed therein.

Therefore, when the hermetically sealed portion 210 of the flow channel control unit 200 is sealed between the fluid inlet 120 and the fluid outlet 130, the fluid can not flow have.

13 and 14, when the position of the flow channel adjusting part 200 according to the present embodiment is changed to form the flow channel part 300 formed by a predetermined width b, The fluid introduced into the fluid inlet 120 may flow to the fluid outlet 130 through the flow channel portion 300.

Specifically, the flow channel unit 300 is formed by the inner surface of the through hole 110 of the housing unit 100 and the outer surface of the channel forming unit 220, and the position of the flow channel adjusting unit 200 is changed The width (b) of the flow path can be changed. The channel forming part 220 of the flow channel adjusting part 200 is formed of a cylindrical body having a second outer diameter D2 which is smaller than the first inner diameter d1 of the through hole 110 of the housing part 100, The flow channel unit 300 having a predetermined height, width, and length can be formed.

The second outer diameter D2 of the channel forming part 200 may be changed according to the intention of the operator or the designer's intention and is not particularly limited. (d1) of 90.00 to 99.99%. It is to be understood that this is merely one embodiment, and as mentioned above, it is to be understood that the present invention may be modified into various embodiments in accordance with an intended design.

15 and 16, in order to more clearly understand how the flow channel width b of the flow channel portion is changed by the flow channel adjusting portion of the linear flow rate adjusting device for injecting fluid into the cylinder tubular fluid infusion tube according to the present invention, And a front sectional view showing a hatched area is shown.

As shown in these drawings, the linear flow rate control apparatus for injecting fluid into the cylinder tube type fluid injecting apparatus according to the present embodiment can control the flow rate of the fluid by changing the flow channel width b of the flow channel unit 300. That is, the fine adjustment unit 400 may be rotated to change the position of the flow channel adjusting unit 200, and the flow channel width b of the flow channel unit 300 may be gradually increased to increase the flow rate of the fluid. On the other hand, on the contrary, the flow regulator 400 is reversely rotated to change the position of the flow channel regulator 200, and the flow channel b of the flow channel unit 300 is gradually decreased to reduce the flow rate of the fluid Or the flow channel unit 300 can be closed.

FIG. 17 is a schematic diagram showing parameters applied to the Hagen-Poiseuille law by simplifying the linear flow rate adjusting device for injecting a cylinder-tubular fluid according to the present invention.

The linear flow rate regulating device for importing according to the present invention can be simplified as shown in FIG. For this configuration, the flow rate calculation formula by the Hagen-Poiseuille law can be derived as shown in the following Equation (2).

&Quot; (2) "

(Where Q is the flow rate, Δp is the differential pressure in the pipe, h is the channel spacing, b is the channel width, μ is the fluid viscosity, and l is the channel length).

On the other hand, as shown in FIG. 17, the channel length can be expressed by the following Equation (3).

&Quot; (3) "

(Where l is the length of the passage and D is the diameter of the passage).

Therefore, the formula for calculating the flow rate of the cylinder-shaped tubular fluid infusion injection fluid 800 according to the present embodiment can be expressed by the following Equation (4) and Can be expressed as.

≪ Equation 4 &

(Where Q is the flow rate, Δp is the differential pressure in the pipe, h is the flow path spacing, b is the flow width, μ is the fluid viscosity, and D is the diameter of the flow path).

As shown in Equation (4), the flow rate of the fluid flowing through the cylinder-type tubular fluid inflow linear fluid regulating device 800 according to the present embodiment is inversely proportional to the diameter D of the flow path, ), And is proportional to the flow width (b).

Therefore, the linear tubular flow control device 800 for injecting fluid into the cylinder tube type fluid injecting apparatus according to the present embodiment has the flow channel portion in which the width of the flow channel is changed by changing the position of the flow channel adjusting portion, It can be seen that linear control can be performed with respect to the flow rate of the gas.

Hereinafter, detailed experimental results will be described in detail.

18 is a graph showing the relationship between the theoretical result obtained by the theoretical equation and the theoretical result obtained by changing the flow rate (b) of the flow channel part by the flow channel adjusting part, using the linear flow rate adjusting device for injecting the cylinder- The graphs thus compared are shown.

Referring to FIG. 18, it can be confirmed that the flow rate changes linearly as the flow path width b is changed by using the linear flow rate adjusting apparatus for injecting a cylinder-tubular fluid according to the present embodiment. Also, it can be confirmed that this linear change is almost similar to the predicted flow rate by the theoretical expression.

Therefore, as shown in the graph shown in FIG. 18, the linear flow rate adjusting apparatus for injecting fluid of cylinder tubular fluid according to the present embodiment has a linear flow control with respect to the flow rate of the fluid flowing through the inside of the flow channel section by changing the flow path width. Is possible.

19 is a side view showing a linear flow rate adjusting apparatus for injecting a cylinder tubular fluid according to another embodiment of the present invention.

Referring to FIG. 19, a gauge 500 may be formed in the vicinity of the fine adjustment part 400 according to the present embodiment.

Specifically, the gauge 500 formed in the vicinity of the fine regulating part 400 is configured such that when the flow channel regulating part 200 is inserted into and discharged from the through hole 110 of the housing part 100, 300 can be accurately displayed.

As described above, according to the linear tubular flow control device for injecting fluid into the cylinder tubular type of the present invention, by providing the flow channel portion in which the width of the flow channel is changed by changing the position of the flow channel control portion, A linear control is possible with respect to the flow rate of the fluid.

According to the present invention, there is provided a linear flow rate adjusting apparatus for injecting fluid into a cylinder tubular fluid infusion device, comprising: a microcontroller mounted on an upper surface or a lower surface of a housing part for inserting and discharging a flow channel adjusting part into a through hole of a housing part; Can be precisely and finely adjusted, resulting in accurate and stable flow control.

According to the linear flow rate adjusting device for injecting a cylinder tubular fluid of the present invention, a sealing member is provided between the inner surface of the through hole of the housing part and the outer circumferential surface of the flow channel adjusting part, .

Further, according to the medical instrument including the linear tubular flow control device for injecting the cylinder tubular fluid of the present invention, it is possible to provide a safe and effective medical service by providing the linear flow control device capable of accurately and stably controlling the flow rate.

In the foregoing detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

100: housing part
110: Through hole
120: fluid inlet
130: Fluid outlet
200: Flow channel control unit
210:
220:
230: Groove
300: Flow channel part
400: fine adjustment unit
410: protrusion
420: handle
430:
500: Gauge
610: inlet pipe connection
620: outlet pipe connection
710: sealing member
720: Fixing member
800: Linear flow control device for injecting cylinder tubular fluid

Claims (16)

A linear flow rate adjusting device (800) for injecting fluid into a cylinder tube type fluid infusion system for controlling a flow rate by adjusting a flow path width of a flow channel part,
A cylindrical housing part 100 having a through hole 110 penetrating from the top face to the bottom face with a first inner diameter d1 and having a fluid inlet 120 and a fluid outlet 130 penetrating the circumferential face to face each other, );
A cylindrical sealing portion 210 having a first outer diameter D1 that is the same as the first inner diameter d1 of the through hole 110 of the housing portion 100 and a second sealing portion 210 extending from the sealing portion 210, And a cylindrical channel forming part 220 formed in a cylindrical shape with a second outer diameter D2 smaller than the inner diameter d1 of the housing part 100. The flow channel part 220 is formed to be inserted into and discharged from the through hole 110 of the housing part 100, A control unit 200; And
The width of the flow channel b is changed by changing the position of the flow channel regulating part 200. The flow channel regulating part 200 is formed by the inner surface of the through hole 110 of the housing part 100 and the outer surface of the channel forming part 220, A flow channel unit 300;
Lt; / RTI >
The second outer diameter D2 of the channel forming part 220 is 90.00 to 99.99% of the first inner diameter d1 of the through hole 110,
The cylinder type tubular fluid infusion linear flow rate regulator 800 is mounted on the upper or lower surface of the housing part 100 to allow the flow channel regulating part 200 to be inserted into the through hole 110 of the housing part 100 And a fine regulating part (400) for discharging the fluid.
delete delete The method according to claim 1,
The flow channel regulator 200 has a groove 230 formed on one side thereof with a thread formed therein,
The fine adjustment unit 400 includes a protrusion 410 having a thread having a structure corresponding to the thread formed in the groove 230 of the flow channel adjusting unit 200,
Wherein the flow channel regulator 200 is inserted into or discharged from the through hole 110 of the housing part 100 by the rotation of the fine regulator 400. [
The method according to claim 1,
The gauge 500 is formed in the vicinity of the fine regulating part 400 so that when the flow channel regulating part 200 is inserted into and discharged from the through hole 110 of the housing part 100, So that the flow rate of the liquid depending on the change in the flow path area of the cylinder-shaped liquid inflow can be known.
The method according to claim 1,
The fluid inlet 120 of the housing part 100 is provided with an inlet pipe connection part 610 through which the inflow pipe can be installed so that the inflow fluid flows into the flow channel part 300,
Wherein a fluid outlet port (130) of the housing part (100) is provided with a discharge pipe connection part (620) for installing a discharge pipe to discharge the fluid from the flow channel part (300) .
The method according to claim 1,
Wherein a sealing member (710) is further provided between the inner surface of the through hole (110) of the housing part (100) and the outer circumferential surface of the flow channel adjusting part (200).
8. The method of claim 7,
Wherein the sealing member 710 is mounted on the outer peripheral surface of the end portion of the sealing portion 210 of the flow channel adjusting portion 200 and the inner surface of the through hole 110 of the housing portion 100. [ Flow control device.
8. The method of claim 7,
Wherein the sealing member (710) is an O-ring.
A linear flow rate adjusting device (800) for injecting fluid into a cylinder tube type fluid infusion system for controlling a flow rate by adjusting a flow path width of a flow channel part,
And a cylindrical housing part 100 (100) having a through hole 110 penetrating from the top face to the bottom face with a first inside diameter d and having a fluid inlet 120 and a fluid outlet 130, );
Is formed to have a first outer diameter D smaller than the first inner diameter d of the through hole 110 of the housing part 100 and is operated to be inserted into and discharged from the through hole 110 of the housing part 100 A flow channel regulator 200 having a cylindrical shape; And
The width b of the flow path is formed by the inner surface of the through hole 110 of the housing part 100 and the outer surface of the flow channel adjusting part 200 and the position of the flow channel adjusting part 200 is changed, A flow channel unit 300 to be changed;
Lt; / RTI >
The first outer diameter D of the flow channel regulator 200 is 90.00 to 99.99% of the first inner diameter d of the through hole 110,
The cylinder type tubular fluid infusion linear flow rate regulator 800 is mounted on the upper or lower surface of the housing part 100 to allow the flow channel regulating part 200 to be inserted into the through hole 110 of the housing part 100 And a fine regulating part (400) for discharging the fluid.
delete delete 11. The method of claim 10,
The flow channel regulator 200 has a groove 230 formed on one side thereof with a thread formed therein,
The fine adjustment unit 400 includes a protrusion 410 having a thread having a structure corresponding to the thread formed in the groove 230 of the flow channel adjusting unit 200,
Wherein the flow channel regulator 200 is inserted into or discharged from the through hole 110 of the housing part 100 by the rotation of the fine regulator 400. [
11. The method of claim 10,
The gauge 500 is formed in the vicinity of the fine regulating part 400 so that when the flow channel regulating part 200 is inserted into and discharged from the through hole 110 of the housing part 100, So that the flow rate of the liquid depending on the change in the flow path area of the cylinder-shaped liquid inflow can be known.
11. The method of claim 10,
Wherein a sealing member (710) is further provided between the inner surface of the through hole (110) of the housing part (100) and the outer circumferential surface of the flow channel adjusting part (200).
A medical device characterized by comprising a linear flow rate regulating device (800) for injecting a cylinder tubular fluid according to any one of claims 1 to 10.

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