WO2020256369A2

WO2020256369A2 - Selector capable of controlling amount of discharged fluid

Info

Publication number: WO2020256369A2
Application number: PCT/KR2020/007729
Authority: WO
Inventors: 조병식; 박순홍
Original assignee: 주식회사 세비카
Priority date: 2019-06-17
Filing date: 2020-06-15
Publication date: 2020-12-24
Also published as: WO2020256369A3; KR20200143937A

Abstract

A selector is provided. A selector according to an embodiment of the present application can comprise: a plurality of passage tubes (10, 20); one discharge tube (40) which communicates with each one end of the plurality of passage tubes (10, 20), and which is formed at one end of the plurality of passing tubes (10, 20); and a flow rate regulating unit which is formed at the other end of the plurality of passing tubes (10, 20), and which includes a housing (400) and a flow rate regulating member (300) that is provided in the housing (400) so as to be spaced a predetermined distance from the housing (400) and that has a plurality of flow rate regulating protrusions (320, 330) extending a predetermined length and protruding along the circumference of the outer surface thereof.

Description

Selector with adjustable fluid discharge

The present application relates to a selector capable of controlling fluid discharge.

Techniques for discharging by controlling the amount of fluid flowing through a tube to a desired amount are used in various fields. For example, in the medical field, drugs administered or injected to a patient must be administered according to the method of course. Injection volume, injection speed, injection time, etc. will be very important factors.

In particular, the use of pain relievers used to control pain in patients after surgery is particularly important, and if this is not followed, gastrointestinal problems such as respiratory depression, excessive sedation, nausea, vomiting, etc., which are side effects depending on the type of drug, are important. It can cause symptoms such as, and in severe cases, drug addiction.

In the case of such analgesics, instead of intermittently injecting the above-described drugs whenever a patient complains of pain, which is a method that has been used recently, a pain self-regulation method that can evenly control pain (Patient Controlled Analgesia: PCA). ) Method is being used.

This PCA method is a method in which the patient himself or herself additionally administers additional drugs by continuously injecting drugs showing relatively low side effects and high effects in small portions, suppressing pain, and in the event of pain due to sudden change in state.

As described above, for basic pain control, since the drug must be continuously administered, it is very important to determine the continuous dose and fine control, and if the control fails, the side effects of the analgesic agent may occur.

As a device for controlling the continuous injection of drugs, the flow control device, which is currently widely used for infusions such as Ringer, applies pressure to the tube using a rotatable disk installed on the tube through which Ringer's solution passes, and applies pressure to the tube. By adjusting the flow rate by changing the cross-sectional area of the flexible tube, this regulator has the advantage of having a simple structure consisting of only 2-3 parts.

However, in such a flow control device, since the disk operated by the thumb moves from the top position to the bottom position of the housing while rolling along the housing, the disk rolls along the housing while holding the housing with the index and middle fingers. It is very unnatural to operate with a thumb, and it is very difficult to accurately control the amount of chemical liquid by rolling the disk unless you are a very skilled user. Therefore, if only the type of drug is accurately prescribed, it can be used relatively easily for the administration of drugs such as Ringer's solution, which is not largely requested in the dosage, but as described above, it is difficult to apply it to pain relievers that cause serious side effects when misused. And, furthermore, there are risks.

(Patent Document 1) Korean Patent Document No. 10-1695453 (2017.01.05)

(Patent Document 2) Korean Patent Document No. 10-0720793 (2007.09.22)

The present application was devised to solve the above problems.

Specifically, it is an object of the present invention to provide a selector that can be continuously administered by precisely controlling the discharge flow rate of the fluid even with simple operation, and is easy to manufacture.

One embodiment of the present application for solving the above problems is a plurality of passage tubes (10, 20), the plurality of passage tubes (10, 20) communicated with each end, respectively, the plurality of passage tubes (10, 20) One discharge tube 40 formed at one end and a flow rate control part formed at the other ends of the plurality of

passage tubes

10 and 20, wherein the housing 400 is spaced apart from the housing 400 and the housing 400 by a predetermined distance. ) Is installed in, and includes a flow control member 300 formed with a plurality of

flow control protrusions

320 and 330 protruding by extending a predetermined length along the periphery of the outer surface thereof, providing a selector including a flow control unit.

In one embodiment, the protruding height of the plurality of flow

rate control protrusions

320 and 330 may be the same as a distance between the housing 400 and the flow rate control member 300.

In one embodiment, the plurality of flow rate control protrusions (320, 330) are extended in a circumferential direction along the outer surface of the flow rate control member 300, the other end from one end of the flow rate projection A radial first angle formed with respect to the rotation axis of the flow control member 300 and a radial second angle formed by the other end of the other flow protrusion with respect to the rotation axis may at least partially overlap.

In one embodiment, further comprising a rotation member 200 is inserted and installed in the flow control member 300, the flow control member 300 rotates with the rotation of the rotation member 200, but the housing ( 400) can be relatively fixed.

In one embodiment, according to the rotation of the rotation member 200, the space between the housing 400 and the flow rate control member 300 and the area in which the plurality of

passage tubes

10 and 20 communicate is different from each other. can do.

In one embodiment, the rotation member 200 is inserted into the flow control member 300 so as to protrude from the top surface of the housing 400 by a predetermined height, and a groove (h) is provided on the top surface of the rotation member 200. ) Can be formed.

In one embodiment, a locking protrusion 241 is protruded on a lower surface of the rotating member 200, and a predetermined circumferential direction is provided inside the lower surface of the housing 400 facing the lower surface of the rotating member 200. The locking protrusion 422 extending at an angle may be formed to protrude.

1 is an overall perspective view of a selector according to an embodiment of the present application.

2 is an exploded perspective view of the selector of FIG. 1.

FIG. 3 is a longitudinal cross-sectional view of the selector of FIG. 1, illustrating a state in which an adjustment space between a housing and a flow control member communicates with only one passage tube.

FIG. 4 is a longitudinal sectional view of the selector of FIG. 1, illustrating a state in which an adjustment space between a housing and a flow control member is in communication with all passage tubes.

FIG. 5 is a longitudinal cross-sectional view of the selector of FIG. 1, illustrating a state in which communication between an adjustment space between a housing and a flow control member and a passage tube is blocked.

Hereinafter, the present application will be described in detail with reference to the accompanying drawings.

Referring to FIG. 2, it is assumed that the surface in which the groove h is formed is the upper surface, and the surface facing the upper surface is the lower surface. However, since it is a concept that can be changed according to the viewpoint, it is not limited to the meaning of the term itself.

1 and 2, the selector according to the embodiment of the present application may include a discharge unit 100, a flow rate control unit and an inlet tube 500.

The inlet tube 500 may be connected to a bag, a container, etc. that can accommodate a fluid through a separate tube, and the discharge unit 100 may be connected to a catheter or the like inserted into the fluid injection object through a separate tube. It will be described in advance that the selector according to the embodiment of the present application is used to control the amount of fluid that is ultimately injected into the fluid injection object by adjusting the communication area between the inlet tube 500 and the discharge unit 100 .

The discharge unit 100 is a portion through which the fluid controlled by the flow rate control unit is discharged, and may include a plurality of

passage tubes

10 and 20 and a discharge tube 40.

The plurality of

passage tubes

10 and 20 is a configuration in which the area communicating with the space inside the flow control unit changes by rotation of the flow control unit to be described later, and is shown as two in the accompanying drawings, but is not limited thereto. More than one may apply. As the number of passage tubes increases, more precise discharge flow rate control is possible, and a detailed description thereof will be described later.

The discharge tube 40 is a portion communicating with each of the plurality of

passage tubes

10 and 20, and may be formed at one end of the plurality of

passage tubes

10 and 20. As described above, the discharge tube 40 may be connected to a catheter or the like inserted into a fluid injection object.

The plurality of passage tubes (10, 20) and the discharge tube (40) may be combined with each other to form a single assembly, which is the first connection part (30) surrounding the plurality of passage tubes (10, 20) and discharge It may be achieved through the coupling of the second connection portion 50 surrounding the rear end of the tube 40. In addition, in order to provide a stable fixing force, a plurality of

glass tubes

60 and 70 may be coupled together between the first connection part 30 and the second connection part 50.

However, it is not limited thereto, and the plurality of

passage tubes

10 and 20 and the discharge tube 40 are in communication with each other, so that the fluid that has passed through the plurality of

passage tubes

10 and 20 is completely discharged through the discharge tube 40. It will be said that any structure can be applied.

The flow control unit is formed to connect between the inlet tube 500 and the discharge unit 100 and is a part capable of adjusting the amount of fluid directed to the discharge unit 100 according to rotation.

Referring to FIG. 2, the flow control unit may include a rotating member 200, a flow control member 300, and a housing 400.

The rotation member 200 is installed in the housing 400 together with the flow rate control member 300 and is a part that rotates the flow rate control member 300 through rotation. Since it is possible to adjust the flow rate discharged through the discharge unit 100 through the rotation of the rotating member 200, it is a part that serves as a manipulation unit.

The rotating member 200 may have an inner diameter smaller than that of the housing 400 so that it can be installed in the housing 400, and the gripping portion 210, the stepped portion 220, the coupling portion 230, and the regulating portion 240 It may include.

The gripping part 210 is a part protruding upward from the housing 400, and the rotation member 200 can be rotated only when the gripping part 210 is gripped. In order to prevent rotation, the protrusion height is preferably ~ ~ cm or less.

That is, so that the rotation member 200 can be rotated only by the medical staff, a groove h is formed on the upper surface of the gripping part 210, and the medical staff has a key having a shape corresponding to the formation of the groove h. ) Can be inserted into the groove (h) to rotate the rotating member 200, and accordingly, the flow rate discharged through the discharge unit 100 can be adjusted.

The stepped portion 220 may have a larger diameter than the gripping portion 210, and more specifically, may have a diameter larger than the diameter of the upper opening H of the housing 400, so that the lower portion of the rotating member 200 After the housing 420 is installed, the upper housing 410 is caught by the stepped portion 220, so that a part of the gripping portion 210 may protrude to the outside.

The coupling part 230 is formed with a coupling groove 231 for coupling to the coupling protrusion 310 of the flow control member 300, and the coupling part 230 extends in the circumferential direction but is empty at some angle in the circumferential direction. A space is formed, and this empty space corresponds to the coupling groove 231.

The regulating part 240 is a portion corresponding to the lower end of the rotating member 200 and the regulating protrusion 241 may protrude downward from the regulating part 240. The regulation protrusion 241 may have a fan shape, for example, and is caught by the locking protrusion 416 formed in the lower housing 420 to be described later, thereby restricting the rotation of the rotating member 200.

The flow control member 300 is coupled to the rotation member 200 and is installed inside the housing 400, and rotates together when the rotation member 200 rotates to form a space inside the housing 400 and a plurality of passage tubes 10 , 20) It is a part that changes the communication area between.

It may have a hollow cylindrical shape, and a rotating member 200 may be inserted into the hollow.

A coupling protrusion 310 having a shape corresponding to the coupling groove 231 of the rotating member 200 is protruded on the inner side of the flow control member 300, and the coupling protrusion 310 and the coupling groove 231 are coupled to each other. By this, the coupling of the rotation member 200 and the flow control member 300 may be completed.

A plurality of flow

rate control protrusions

320 and 330 extending a predetermined length along the periphery of the flow rate control member 300 may be formed to protrude.

The protrusion height of the plurality of

flow control protrusions

320 and 330 may be the same as the distance between the housing 400 and the flow control member 300, and thus the housing 400 and the flow control member 300 rotate according to the rotation of the flow control member 300. It is possible to adjust the communication area between the space between the flow control member 300 (hereinafter referred to as “control space”) and the discharge unit 100.

More specifically, the number of flow control projections (320, 330) may be the same as the number of passage tubes (10, 20), opening/closing the communication part between each passage tube (10, 20) and the housing (400) It can be formed in a position to enable it.

Referring to Figure 2, a plurality of flow control protrusions (320, 330) extend in a circumferential direction along the outer surface of the flow control member 300, the other end from one end of the flow control protrusion to control the flow rate The radial first angle formed with respect to the rotation axis of the member 300 and the radial second angle formed by the other end of the other flow control protrusion with respect to the rotation axis may overlap at least partially.

That is, when the flow rate control member 300 is viewed from above, one of the flow rate control protrusions 320 and the other flow rate control protrusion 330 may partially overlap in the circumferential direction.

Therefore, according to the rotation of the flow control member 300, only one of the plurality of

passage tubes

10 and 20 may communicate with the adjustment space (FIG. 3), or all of the plurality of

passage tubes

10 and 20 Can communicate with (FIG. 4), or all of the plurality of

passage tubes

10, 20 may be blocked from communicating with the control space (FIG. 5).

In other words, when the flow rate control member 300 is rotated, the housing 400 is relatively fixed, but the area in which the control space and the discharge unit 100 communicate with the rotation of the flow rate control member 300 may change. . The wider the communication area, the more fluid is discharged through the discharge unit 100, and the narrower the less fluid is discharged.

The housing 400 is a part constituting the overall appearance of the flow rate control unit and may be cylindrical, and more specifically, the assembly of the housing 400 may be completed through the combination of the upper housing 410 and the lower housing 420.

The upper housing 410 may include a ring-shaped upper plate 411 and a plurality of first coupling wings 412 extending downward from a side surface of the upper plate 411. A stepped step 413 extending outwardly upward is formed at a lower end of the plurality of first coupling wings 412, so that coupling and fixing with the lower housing 420 may be performed.

The lower housing 420 may be formed in a cylindrical shape with an open top, and a second coupling blade 421 having a coupling groove for inserting and fixing the first coupling blade 412 may be formed on a side surface. The first coupling blade 412 passes through the coupling groove of the second coupling blade 421, and the stepped 413 formed at the lower end of the first coupling blade 412 is caught on the lower end of the second coupling blade 421. , The combination of the upper housing 410 and the lower housing 420 may be completed.

A locking protrusion 422 extending a predetermined angle in a circumferential direction from the center may be formed on an inner bottom surface of the lower housing 420. The locking protrusion 422 may be a kind of fan shape, and by limiting the rotation of the regulation protrusion 241 of the rotating member 200, the rotating member 200 is rotated in one direction to increase/decrease the discharge flow rate. It will only be fixed.

That is, the locking projection 422 formed in the lower housing 420 is a portion that restricts the rotation of the rotating member 200, and the rotating member 200 can be rotated only with respect to the portion where the locking projection 422 is not formed. do.

As the locking protrusion 422 is formed, the direction of flow rate control can be limited to only one direction. When looking at the rotating member 200 in which the groove h is formed, the discharge flow rate is rotated clockwise. This increases, and when it is rotated counterclockwise, the discharge flow rate decreases, and eventually the communication between the control space and the discharge part 100 is completely blocked, and thus the fluid is not discharged through the discharge part 100. Since the direction of the increase/decrease of the discharge flow rate is determined, a problem in which an unintended fluid is injected excessively or not injected due to an operation error can be solved.

According to the present application described above, since the fluid introduced through simple operation is accurately discharged at a predetermined flow rate according to the rotation of the rotating member, it is convenient to use and can be adjusted so that the correct flow rate of the fluid is continuously administered. It has the advantage that it can be manufactured simply without the need.

As described above, in the present specification, the present application has been described with reference to the embodiment shown in the drawings so that those skilled in the art can easily understand and reproduce this application, but this is only illustrative, and those skilled in the art can use various modifications and equivalent It will be appreciated that embodiments are possible. Therefore, the scope of protection of the present application should be determined by the claims.

(Explanation of code)

10, 20: passing tube

30: first connection

40: discharge tube

50: second connection

60, 70: glass tube

100: discharge unit

200: rotating member

210: holding portion

220: stepped part

230: coupling portion

231: coupling groove

240: regulatory department

241: regulatory protrusion

300: flow control member

310: coupling protrusion

320, 330: flow control projection

400: housing

410: upper housing

411: top plate

412: first coupling wing

413: stepped

420: lower housing

421: second coupling wing

422: stumbling jaw

500: inlet tube

h: home

H: upper opening

Claims

A plurality of through tubes (10, 20);

One discharge tube 40 communicated with one end of the plurality of passage tubes 10 and 20 and formed at one end of the plurality of passage tubes 10 and 20; And

As a flow rate control unit formed at the other ends of the plurality of passage tubes (10, 20),

Housing 400; And

A flow control member 300 provided in the housing 400 so as to be spaced apart from the housing 400 by a predetermined distance, and having a plurality of flow control protrusions 320 and 330 protruding extending a predetermined length along the outer surface Containing, flow control unit; containing,

Selector.
According to claim 1, The protruding height of the plurality of flow control protrusions (320, 330) is the same as the distance between the housing (400) and the flow control member (300),

Selector.
The method of claim 2,

The plurality of flow rate control protrusions 320 and 330 are extended in a circumferential direction along an outer surface circumference of the flow rate control member 300,

A radial first angle formed by one end of any one of the flow protrusions with respect to the rotation axis of the flow control member 300 and a radial second angle formed by the other end of the other flow protrusion with respect to the rotation axis of the flow control member 300 At least some overlapping,

Selector.
The method of claim 3,

Further comprising a rotating member 200 inserted into the flow rate control member 300,

When the rotation member 200 rotates, the flow rate control member 300 rotates together, but the housing 400 is relatively fixed,

Selector.
The method of claim 4,

According to the rotation of the rotation member 200, the space between the housing 400 and the flow rate control member 300 and the areas in which the plurality of passage tubes 10 and 20 are communicated are different from each other,

Selector.
The method of claim 4,

The rotation member 200 is inserted into the flow rate control member 300 to protrude from the upper surface of the housing 400 by a predetermined height, and

A groove (h) is formed on the upper surface of the rotating member 200,

Selector.
The method of claim 5,

A locking protrusion 241 is formed to protrude from a lower surface of the rotation member 200

A locking protrusion 422 extending at a predetermined angle in the circumferential direction is formed inside the lower surface of the housing 400 facing the lower surface of the rotating member 200,

Selector.