KR20200104696A - Stopcock - Google Patents

Abstract

The present disclosure is to provide a stopcock capable of automatically injecting a drug while being mounted on a body and preventing a reverse flow of a drug injected from another direction. According to one embodiment of the present disclosure, the stopcock comprises: a body formed in the form of a passage connecting an injection pipe and a supply pipe; and a blocking part having one end coupled to one side of the body between the injection pipe and the supply pipe, and the other end extending toward the inside of the body to block each other between the injection pipe and the body, in which the other end of the blocking part is bent toward the inside of the body when the drug is injected through the injection tube so as to guide the movement of the drug, and is also formed to elastically move to an original position when the injection of the drug is stopped.

Description

Stopcock {STOPCOCK}

The content disclosed in the present specification relates to a stopcock, and more particularly, to a stopcock connected to a tube to control the movement of the drug.

Unless otherwise indicated herein, the content described in this section is not prior art to the claims of this application, and inclusion in this section is not admitted to be prior art.

In general, drugs including physiological saline, liquids, and liquids prescribed to a patient are supplied to the patient's body through a blood transfusion tube, and a stopcock is connected to the blood transfusion tube to control the movement of various types of drugs.

In the case of controlling the movement of a drug through a conventional 3-way stopcock, a passage for injecting drugs is opened by rotating a valve formed in the stopcock, or a passage for blocking drug injection is blocked.

However, there is a high possibility of contamination due to the introduction or reverse flow of drugs to the valve during the process of rotating the valve, and the stopcock itself is contaminated due to contamination of the valve, reducing the use period of the stopcock. There is a need for technology to prevent contamination of the valve.

In this regard, Korean Patent Publication No. 10-0901729 discloses a medical stopcock and a valve unit, and Korean Patent Publication No. 10-1404488 discloses a functional multi-directional stopcock for medical use.

However, the existing inventions do not disclose a technique for minimizing or preventing contamination by driving a valve.

Korean Patent Publication No. 10-0901729 Korean Patent Publication No. 10-1404488

It is to provide a stopcock that enables automatic drug injection while mounted on the body, facilitates control of the drug injection amount, and prevents reverse flow of drugs injected from other directions.

In addition, it is not limited to the technical problems as described above, and it is obvious that another technical problem may be derived from the following description.

According to an embodiment of the disclosed subject matter, the stopcock has a body formed in the form of a passage connecting the injection pipe and the supply pipe, and one end is coupled to one side of the body between the injection pipe and the supply pipe, and the other end extends the interior of the body. And a blocking part extending toward and blocking each other between the injection tube and the body, and the other end of the blocking part is bent toward the inside of the body when the drug is injected through the injection tube to guide the movement of the drug, When the injection of the drug is stopped, it is formed to move elastically to the original position.

In addition, the blocking portion may have one end formed in a circular plate shape, and the other end may be formed such that a portion of the top edge of one end is in close contact with the inner surface of the body and extends toward the other side of the body in the form of a plate.

In addition, the stopcock further includes an adjusting part having one end coupled to the blocking part to enable elastic rotation between one end and the other end of the blocking part, and the other end extending to be formed to be in close contact with the blocking part, and one end of the adjusting part According to the driving of pressing the upper or lower part, the other end of the adjusting part may move toward one side or the other side of the body while being in close contact with the other end of the blocking part.

In addition, the body is coupled to the outside of the body at a position spaced apart from the blocking portion between the injection pipe and the supply pipe, and the other end extends in a tube shape toward the outside to connect the inside and the outside of the body. It may further include.

In addition, the stopcock is coupled to the other end of the side injection pipe in the form of a tube so as to be detachable or attached, and the other end extends toward a direction away from the body to seal the side injection pipe. It may contain more.

In addition, the side injection part is formed in a tube shape at one end, coupled to the side injection pipe, and the other end is formed to shrink and extend toward a direction away from the body, and one end is inserted into the other end of the fixing unit, The other end may include an insertion unit extending and extending from the edge of one end toward the body so as to be in close contact with the inner surface of the side injection pipe, and having a hollow formed on the side surface.

In addition, the stopcock surrounds the other side of the body between the injection pipe and the supply pipe and is coupled to the body so as to be rotatable with the body, and a fixing part in which a magnet formed to surround a part of the body is disposed. Further, the fixing part may be rotated to bring the other end of the blocking part to be in close contact with the inner side of the body or separate from the inner side of the body.

According to an embodiment disclosed in the present specification, the stopcock automatically maintains the amount of the drug flowing into the body from the injection tube through the elastic plate, and prevents reverse flow of other drugs flowing from the other direction of the body. There is this.

In addition, the stopcock has advantages in that contamination by drugs is reduced through a simple structure, and the support force of the elastic membrane against the pressure of the drug can be adjusted, so that it is easy to reinforce the elastic force of the elastic membrane or control the amount of drug inflow during long-time use.

In addition, since the stopcock can control the deformation of the elastic membrane through magnetism, there is an advantage that it is possible to conveniently control the inflow amount of the drug by simply rotating the ring-shaped fixing unit.

In addition, since the effects of the present invention described as described above are naturally exerted by the composition of the contents described regardless of whether the inventor recognizes or not, the above-described effects are only a few effects according to the contents described, and all effects that the inventor grasp or exist. It should not be recognized as describing

In addition, the effect of the present invention will have to be further grasped by the overall description of the specification, and even if it is not described in an explicit sentence, a person having ordinary knowledge in the technical field to which the described content belongs will have such an effect through the present specification. If it is an effect that can be recognized, it should be seen as the effect described in this specification.

1 is a perspective view showing a stopcock according to an embodiment of the content disclosed herein.
FIG. 2 is a cross-sectional view taken along line II′ of the body and side injection portion of FIG. 1.
3 is an exploded perspective view of the stopcock of FIG. 1 and cross-sectional views taken along II-II'.
4 and 5 are exploded perspective views showing a stopcock according to another embodiment of the present disclosure.
Figure 6 is a cut-away view showing the inside of the body of the stopcock of Figure 4;
Figure 7 is a cut-away view showing the operation of the stopcock of Figure 4;
Figure 8 is a cut-away view showing a stopcock according to another embodiment of the present disclosure.

Hereinafter, with reference to the accompanying drawings looks at the configuration, operation, and effects of the stopcock according to a preferred embodiment. For reference, in the drawings below, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size, and the same reference numerals refer to the same component throughout the specification. And reference numerals for the same configuration in individual drawings will be omitted.

1 is a perspective view showing a stopcock according to an embodiment of the present disclosure. FIG. 2 is a cross-sectional view taken along line II′ of the body and side injection portion of FIG. 1. 3 is an exploded perspective view of the stopcock of FIG. 1 and a cross-sectional view taken along II-II′.

As shown in FIGS. 1 to 3, the stopcock 100 includes a body 200, a blocking portion 400, and a side injection portion 600.

The stopcock 100 controls the movement of drugs including physiological saline, liquid drugs, and drugs prescribed to a patient, and allows various types of drugs to be administered simultaneously, and effectively prevents reflux due to injection of various types of drugs without separate manipulation. prevent.

The body 200 includes an injection pipe 220, a supply pipe 240 and a side injection pipe 260.

The central portion of the body 200 is formed in a cylindrical shape in which the space is opened toward one side thereof, and a first space connecting the injection pipe 220 and the supply pipe 240 coupled to the outer surface of the body 200 to each other ( 10) is formed inside.

One end of the injection pipe 220 passes through the body 200 at a position corresponding to the upper portion of the body 200 and surrounds the injection hole connected to the first space 10 and is coupled to the body 200, and the other end is a pipe The shape extends toward the top.

One end of the supply pipe 240 passes through the body 200 at a position corresponding to the lower portion of the body 200 and surrounds the tube connected to the first space 10 and is coupled to the body 200, and the other end is in the form of a pipe. It extends toward the bottom of the furnace.

A tube surrounding the inner space in a cylindrical shape is disposed inside the supply pipe 240 to discharge the drug flowing into the first space 10 to the outside through the inner space of the supply pipe 240.

One end of the side injection pipe 260 is coupled to the outer surface of the body 200 at a position spaced apart from the blocking portion 400 between the injection pipe 220 and the supply pipe 240, and the other end is outside the body 200 It is formed to extend toward the tube shape to connect the first space 10 and the outside.

The blocking part 400 includes a sealing unit 420 and an elastic film 440.

One end of the blocking part 400 is coupled to one side of the body 200 at a position corresponding between the injection pipe 220 and the supply pipe 240, and the other end passes through the body 200 and the inside of the body 200 It extends toward and is formed to block each other between the injection pipe 220 and the body 200.

One end of the sealing unit 420 is formed in a circular plate shape, the other end is extended by a predetermined distance toward the other side of the body 200, and a groove surrounding the outside is formed on one side of the body 200. When inserted, it blocks the first space 10 from the outside.

In a state in which the blocking part 400 is coupled to the body 200, the user may inject a drug desired by the user into the first space 10 by penetrating the sealing unit 420 through a needle of a syringe.

One end of the elastic membrane 440 is coupled to a portion of the edge of the other end of the sealing unit 420 at a position corresponding to the upper portion of the sealing unit 420, and the other end is convex toward the top in a semicircle shape toward the other side of the body 200. It extends in the form of a plate.

The bottom surface of the elastic layer 440 may be formed in a flat surface, and a portion of the bottom surface of the other end of the elastic layer 440 may be recessed toward the top by a predetermined distance to form a groove, and flowing into the first space 10. As the drug moves to the groove, the elastic film 440 is prevented from being deformed, thereby preventing reverse flow.

The upper surface of the elastic membrane 440 is in close contact with the inner surface of the body 200 corresponding to the position at which one end of the injection tube 220 is connected within the first space 10 or separated by a predetermined distance. The space inside the injection tube 220 and the first space 10 inside the body 200 are blocked from each other.

The other end of the elastic membrane 440 is in close contact with a stepped portion formed by extending a portion of the inner surface of the body 200 of the first space 10 in a cylindrical shape toward the inside of the first space 10, and usually the elastic membrane ( The other end of the elastic membrane 440 maintains a state in close contact with the stepped jaw, and when the pressure of the drug to move from the inner space of the injection tube 220 to the first space 10 occurs, the other end of the elastic membrane 440 Separated.

The elastic membrane 440 is made of a polymer or natural material having elasticity, and the drug moves toward the first space 10 through the injection tube 220 while the upper surface is in close contact with the inner surface of the body 200 When the elastic film 440 is bent toward the first space 10 due to the pressure of the drug, a space through which the drug can move is formed between the first space 10 and the inner space of the injection tube 220.

And when the supply of the drug through the injection tube 220 is stopped, the elastic membrane 440 elastically moves to the original position and is in close contact with the inner surface of the body 200, and the inside of the first space 10 and the injection tube 220 Spaces are separated from each other.

In addition, the drug flowing into the first space 10 through the supply pipe 240 or the side injection part 600 is formed of the injection pipe 220 by a groove formed at the other end of the elastic film 440 or the elastic film 440. It is prevented from moving backwards into the interior space.

The drug flowing into the groove formed at the other end of the elastic film 440 presses the elastic film 440 in the process of flowing into the groove, thereby improving the sealing force between the elastic film 440 and the inner surface of the body 200. .

The side injection part 600 includes a fixing unit 620 and an insertion unit 640.

One end of the side injection part 600 is coupled to the other end of the side injection pipe 260 in the form of a tube so as to be detachable or attached, and the other end extends in a direction spaced apart from the body 200 to form a side injection pipe 260. It is formed to seal.

One end of the fixing unit 620 is formed in a tube shape, surrounds a part of the other end of the side injection pipe 260 and is closely coupled with the side injection pipe 260, and the other end forms a curved surface and is spaced apart from the body 200 It is reduced to, and then extended into a cylindrical shape.

A screw thread is formed on the outer surface of the other end of the fixing unit 620 so that it is firmly connected through a drug bottle and a tube disposed outside, and a fourth space 14 penetrating the fixing unit 620 is formed inside.

One end of the insertion unit 640 is formed in a cylindrical shape and is inserted into the other end of the fixing unit 620 from the inside of the fourth space 14, and the other end extends from the edge of one end toward the other end of the fixing unit 620 It extends obliquely and is disposed inside the side injection pipe 260.

On both sides of the insertion unit 640, each of the plurality of hollows 20 and 21 connecting the third space 13 and the fourth space 14 inside the insertion unit 640 are formed to face each other, and the insertion unit One end of the 640 is located on the same horizontal line as the connection pipe 11 passing through the side injection pipe 260 between the first space 10 and the second space 12.

Therefore, the drug injected into the first space 10 through the connection pipe 11 through the third space 13 through one end of the insertion unit 640 passes through the first space 10 and the supply pipe 240 And the drug flowing back to the first to third spaces 12, 13, and 14 through the connection pipe 11, one end of the fixing unit 620 and the insertion unit 640 through the hollow 20 It is prevented from moving between the other ends and flowing backward through the insertion unit 640.

Referring to FIG. 3, in a state in which the sealing unit 420 and the elastic membrane 440 are inserted into the first space 10 and coupled with the body 200, the first space 10 The first drug moving toward) pushes the other end of the elastic membrane 440 toward the first space 10 and moves into the body 200.

When the second drug is introduced into the first space 10 through the side injection part 600 while the first drug is introduced into the first space 10 through the elastic film 440, the elastic film 440 is The second drug is in close contact with the inner surface of the body 200 or covers the inner surface of the body 200 by the injection pressure of the second drug and blocks the interior of the first space 10 and the injection tube 220 to block the second Blocks reflux of the drug.

In addition, when the third drug is introduced into the first space 10 through the injection device penetrating the sealing unit 420 while the first drug is introduced into the first space 10 through the elastic membrane 440 The elastic membrane 440 is in close contact with the inner surface of the body 200 by the injection pressure of the third drug, and between the first space 10 and the inner space of the injection tube 220 is the elastic membrane 440 It is blocked by the elastic restoring force and the injection pressure of the third drug.

Therefore, the stopcock 100 automatically injects other drugs that are injected at different locations of the body 200 without requiring any special manipulation in the process of continuously injecting drugs moving from the infusion tube 220 to the body 200 Effectively prevents backflow into the pipe 220.

In addition, the stopcock 100 automatically prevents the reverse flow of the drug toward the injection tube 220, and through the injection tube 220, the blocking part 400, and the side injection part 600, different types of There is an advantage that a drug can be injected into the first space 10 located inside the body 200.

The stopcock 120 according to the present embodiment is substantially the same as the stopcock 100 of FIGS. 1 to 3 except for the blocking part 410 and the adjusting part 800, and thus the same reference numbers and names are used. Duplicate description will be omitted.

4 and 5 are exploded perspective views illustrating a stopcock according to another embodiment of the present disclosure. 6 is a sectional view showing the inside of the body of the stopcock of FIG. 4. 7 is a cut-away view showing the operation of the stopcock of FIG. 4.

As shown in FIGS. 4 to 7, the stopcock 120 includes a blocking part 410 and an adjusting part 800.

The blocking part 410 includes a sealing unit 422 and an elastic film 440.

One end of the blocking portion 410 is formed in a circular ring shape, and the other end is formed such that a portion of the upper edge of one end extends toward the other side of the body 200 by a predetermined distance.

One end of the blocking part 410 is inserted into one side of the body 200 and is in close contact with the inner side of one side of the body 200, and the other end of the blocking part 410 is in close contact with the upper inner surface of the body 200 to provide an injection tube. The inner space of 220 is separated from the first space 10.

One end of the sealing unit 422 is formed in the shape of a circular plate with a hollow, and the other end extends toward the other side of the body 200 by a predetermined distance to form a ring or ring as a whole.

The outer surface between one end and the other end of the sealing unit 422 is recessed in a form surrounding the outer side of the sealing unit 422 to form a sealing groove, and a protrusion protruding in a ring shape on one inner surface of the body 200 and Are combined.

One end of the elastic membrane 440 is coupled to the upper edge of the sealing unit 422, and the other end extends toward the other side of the body 200 in the form of a plate protruding in a semicircular shape toward the upper end of the body 200. It is in close contact with the side.

The adjustment unit 800 includes a cap 820, a rotation shaft 830, a gear 840, a stopper 850, and a reinforcing plate 860.

One end of the adjusting part 800 is coupled to enable elastic rotation with the blocking part 410 between one end and the other end of the blocking part 410, and the other end extends toward the elastic film 440 to extend the blocking part 410 and It is formed to be in close contact.

The other end of the control unit 800 moves toward the other side of the body 200 in a state in close contact with the elastic membrane 440 according to the driving of pressing the upper end of the blocking unit 410 or the control unit 800 The resistance of the elastic membrane 440 to the pressure of the drug injected from 220 is increased.

On the contrary, the other end of the adjustment unit 800 moves toward one side of the body 200 in a state in close contact with the elastic membrane 440 according to the driving of pressing the lower end of the blocking unit 410 or the adjustment unit 800 to be injected. The resistance of the elastic membrane 440 to the pressure of the drug injected from the tube 220 is reduced.

Therefore, the user may increase the amount of the drug flowing into the first space 10 through the elastic membrane 440 through the manipulation of the control unit 800 or block the drug from flowing into the first space 10. I can.

Specifically, the cap 820 is formed in a circular plate shape and formed to be in close contact with the inner surface of the sealing unit 422, and the sealing unit 422 to improve sealing between the sealing unit 422 and the cap 820 And the cap 820 may be integrally manufactured.

One end of the rotation shaft 830 is coupled to be rotatable to one side of the sealing unit 422 at a position adjacent to the rear surface of the cap 820, and the other end is sealed through the cap 820 coupled to the sealing unit 422 It is coupled to the other side of the unit 422 to enable rotation.

One end of the gear 840 is coupled to enable rotation with the central portion of the rotation shaft 830 at the rear of the cap 820, and the other end expands in a fan shape and extends toward the other side of the body 200, and the other end has a plurality of The locking jaws are formed to be spaced apart from each other by a predetermined distance from the top to the bottom.

Each of the locking jaws forms a curved surface inclined toward the other side of the body 200 at a position corresponding to the upper portion, and an inclined surface extending therefrom is formed, and at a position corresponding to the lower portion, it is vertically toward the rotation axis 830. An extending plane is formed.

One end of the stopper 850 is coupled with the rear surfaces of both sides of the cap 820 at a position adjacent to the upper portion of the rotation shaft 830 with the gear 840 interposed therebetween, and the central portion extends obliquely toward the upper portion of the other side of the body 200 As they extend toward each other and are connected, they are in close contact with one of the locking projections of the gear 840.

The other end of the stopper 850 is separated from the center of the stopper 850 to both sides of the gear 840 and extends toward the cap 820 to be coupled with the cap 820 at a position corresponding to the upper end of the stopper 850 .

The stopper 850 is made of an elastic material so that when the other end of the gear 840 moves upward along the rotation shaft 830, the inclined surface of any one of the locking jaws pushes the center of the stopper 850 It passes through the central part of 850 and moves toward the top.

Conversely, when the other end of the gear 840 moves toward the lower side of the rotation shaft 830 as an axis, one of the locking jaws pushes the central part of the stopper 850 toward the lower side, and then the stopper 850 It passes through the center and moves toward the bottom.

In a state in which the gear 840 does not rotate and is stopped, the other end of the stopper 850 is in close contact with the plane of any one of the locking jaws to block the rotation of the gear 840.

One end of the spring 870 is in close contact with the upper surface of the gear 840 in the form of a plate and extends toward the rotation shaft 830 by a predetermined distance, and the other end is bent and then comes into close contact with the rear surface of the cap 820 and is directed upward. It extends in the form of a plate.

Each of one end and the other end of the spring 870 is in close contact with or coupled to the upper surface of the gear 840 and the rear surface of the cap 820, respectively, and generates an elastic force toward the bottom so that the other end of the gear 840 moves elastically toward the bottom. Let it.

Accordingly, in a state in which the central portion of the stopper 850 is in close contact with one of the locking jaws, the rotation of the gear 840 is stopped even when the elastic force of the spring 870 acts, and the central portion of the stopper 850 is When moving toward the other side of the body 200 and being separated from the plane of any one of the locking jaws, the other end of the gear 840 is elastically lowered by the elasticity of the spring 870.

In addition, when the user presses the upper part of the cap 820 or the sealing unit 422 and pushes the upper end of the gear 840 toward the first space 10, the other end of the gear 840 is located on the rotation shaft 830. Elastically descends.

Further, when the lower end of the gear 840 is pushed toward the first space 10 by pressing the lower part of the cap 820 or the sealing unit 422, the other end of the gear 840 moves the upper part about the rotation shaft 830 Move towards.

One end of the reinforcing plate 860 is coupled to the upper portion of the gear 840, and the other end is bent toward the other side of the body 200 and extends toward the first space 10 by a predetermined distance, so that the elastic film 440 is It adheres closely to the base.

The other end of the reinforcing plate 860 forms a curved surface toward the top and is formed in the shape of a protruding plate, and is in close contact with the bottom surface of the elastic film 440 to respond to the pressure of the drug injected from the injection pipe 220. ) To increase the support.

When the other end of the reinforcing plate 860 moves toward the other side of the body 200 and the contact area with the elastic membrane 440 increases, the elastic membrane 440 against the pressure of the drug flowing from the injection tube 220 The support is increased to block the drug from flowing into the first space 10.

Conversely, when the other end of the reinforcing plate 860 is pulled toward the cap 820, the contact area between the elastic membrane 440 and the reinforcing plate 860 decreases, and the pressure of the drug introduced from the injection pipe 220 As the supporting force of the elastic membrane 440 is reduced, the drug in the injection tube 220 passes through the deformed elastic membrane 440 and flows into the first space 10.

Therefore, when the lower portion of the cap 820 or the sealing unit 422 is pushed toward the first space 10, the lower end of the gear 840 is directed upward due to the deformation of the cap 820 or the sealing unit 422. It moves, and the upper part of the gear 840 pushes the reinforcing plate 860 toward the other side of the body 200 to prevent the drug from flowing into the first space 10 through the elastic membrane 440. .

Conversely, when the upper portion of the cap 820 or the sealing unit 422 is pushed toward the first space 10, the other end of the stopper 850 is separated from the plane of any one of the locking jaws, and the gear 840 The upper end of the device is elastically moved toward the lower side, and the upper part of the gear 840 pulls the reinforcing plate 860 to block the drug from flowing into the first space 10 through the elastic film 440.

Referring to FIG. 7, one end of the stopper 850 extends toward the other side of the body 200 while forming an inclined surface, and the central portion of the stopper 850 blocks the rotation of the other end of the gear 840 to move toward the lower side. Therefore, the rotation of the gear 840 is stably blocked through one end of the inclined surface of the stopper 850, so that the drug is stably introduced into the first space 10 through the elastic membrane 440.

Conversely, when the upper portion of the cap 820 or the sealing unit 442 is pressed toward the first space 10 and the other end of the stopper 850 is moved toward the other side of the body 200, the central portion of the stopper 850 is While moving toward the other side of 200, it is separated from any one of the locking jaws of the gear 840, and the other end of the gear 840 descends rapidly by the elastic force of the spring 870.

As the other end of the gear 840 descends rapidly, the upper part of the gear 840 moves a predetermined distance toward the other side of the body 200, and a bent shape between one end and the other end of the reinforcing plate 860 is unfolded, The contact area between the other end of the reinforcing plate 860 and the elastic film 440 is increased.

In addition, when the user presses the lower portion of the cap 820 or the sealing unit 422 toward the first space 10 to raise the other end of the gear 840, the central portion of the stopper 850 is relatively upward. Since it is formed in a structure that is easily deformable, it is easy for the locking jaws of the gear 840 to move toward the top through the central portion of the stopper 850.

In addition, when the lower portion of the cap 820 or the sealing unit 422 is pressed, the drug in the injection tube 220 is injected into the first space 10, and when the upper portion of the cap 820 or the sealing unit 422 is pressed, the drug is injected. Since the inflow of the drug from the tube 220 into the first space 10 is blocked, the user can intuitively control the injection amount of the drug.

In addition, since the gear 840 is rotated by planes formed on each of the plurality of locking projections and then fixed step by step, precise control of the contact area between the reinforcing plate 860 and the elastic film 440 is possible. , There is an advantage in that it is easy to adjust the amount of the drug introduced into the first space 10 from the injection tube 220.

8 is a cut-away view showing a stopcock according to still another embodiment of the present disclosure.

The stopcock 140 according to the present embodiment is substantially the same as the stopcock 100 of FIGS. 1 to 3 except for the blocking portion 415 and the fixing portion 900, and thus the same reference numbers and names are used. Duplicate description will be omitted.

As shown in FIG. 8, the stopcock 140 includes a blocking portion 415 and a fixing portion 900.

The stopcock 140 can control the support force for the pressure of the drug introduced from the injection pipe 220 of the blocking unit 415 through the driving of the fixing unit 900, and intuitively drive the fixing unit 900 There is an advantage of being able to adjust or maintain the support force of the elastic membrane 442 against the pressure of the drug even during long-time use because the control is possible.

The blocking part 415 includes a sealing unit 420 and an elastic film 442.

One end of the elastic membrane 442 is coupled to the upper edge of the sealing unit 420, and the other end extends toward the other side of the body 200 in a state in close contact with the upper inner surface of the body 200, so that the injection pipe 220 Blocks the drug from flowing into the first space 10.

A part or all of the elastic membrane 442 is formed of a polymer containing a magnetic material, and the body 200 and the body 200 are adjacent to the elastic membrane 442 on the outer surface of the body 200 with the upper end of the body 200 interposed therebetween. It is bent toward the bottom by the driving of the fixing part 900 to be in close contact, or it is in close contact with the inner surface of the body 200.

The fixing part 900 includes a rotating ring 920, a protrusion 940, and a magnet 960.

One end of the fixing part 900 surrounds the other side of the body 200 between the injection pipe 220 and the supply pipe 240 and extends from one side of the body 200 to the other side so that the body 200 can be rotated about an axis. ) And is combined.

The other end of the fixing part 900 is formed in a ring or ring shape surrounding the other side of the body 200 by extending and extending outward from the other side of the body 200, one end and the other end of the fixing part 900 A magnet 960 surrounding a part of the other side of the body 200 is disposed therebetween.

Specifically, the rotary ring 920 is formed in a ring or ring shape, and the other side of the body 200 and the sliding movement along the axis extending from one side of the body 200 to the other side while surrounding the other side of the body 200 As close as possible.

One end of the protrusion 940 is coupled to the center of the inner surface of the rotary ring 920, and the other end extends in a ring shape along the inner surface of the rotary ring 920 and is combined with one end to form a ring shape as a whole.

The protrusion 940 surrounds the other side of the body 200 in a state coupled to the rotation ring 920 and is inserted into the other side of the body 200 to block separation from the body 200 while the rotation ring 920 rotates. do.

The magnet 960 has one end disposed inside the rotation ring 920, and the other end extends in a semicircular shape in the inner space of the rotation ring 920 and is fixed inside the rotation ring 920, and the elastic membrane 442 It is formed to have the same magnetism as or opposite magnetism.

Accordingly, when the elastic film 442 and the magnet 960 have the same magnetism, when the magnet 960 reaches a position adjacent to the elastic film 442 through the rotation of the rotation ring 920, the elastic film 442 is It is bent toward the bottom so that a relatively large amount of the drug is introduced into the first space 10.

And when the magnetisms of the elastic membrane 442 and the magnet 960 are the same, when the magnet 960 reaches a position relatively spaced apart from the elastic membrane 442 through the rotation of the rotation ring 920, the elastic membrane 442 ) Is bent toward the top while moving to the original position, so that the inflow of the drug into the first space 10 is limited or reduced.

Conversely, when the magnetism of the elastic film 442 and the magnet 960 are different, when the magnet 960 reaches a position adjacent to the elastic film 442 through the rotation of the rotation ring 920, the elastic film 442 is A relatively small amount of the drug flows into the first space 10 by being in close contact with the inner surface of the body 200, or the introduction of the drug into the first space 10 is restricted.

And when the magnetic properties of the elastic membrane 442 and the magnet 960 are different, when the magnet 960 reaches a position relatively spaced from the elastic membrane 442 through the rotation of the rotation ring 920, the elastic membrane 442 ) Is bent toward the bottom so that the amount of the drug flowing into the first space 10 is relatively increased.

Although preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and represent all the technical ideas of the present invention. Since it is not, it should be understood that there may be various equivalents and modifications that may be substituted for them at the time of application. Therefore, the embodiments described above should be understood as illustrative and non-limiting in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and the All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

100, 120, 140: stopcock 200: body
400, 410: blocking part 600: side injection part
800: adjustment unit 900: fixing unit

Claims (7)

A body formed in the form of a passage connecting the injection pipe and the supply pipe; And
One end is coupled to one side of the body between the injection pipe and the supply pipe, and the other end extends toward the inside of the body to block the injection pipe and the body from each other; includes,
The other end of the blocking portion is bent toward the inside of the body when the drug is injected through the injection tube to guide the movement of the drug, and when the injection of the drug is stopped, the stopcock is formed to elastically move to the original position.
The method of claim 1, wherein the blocking unit,
One end is formed in the form of a circular plate, the other end is a stopcock, characterized in that formed so that a portion of the top edge of one end is in close contact with the inner side of the body and extends toward the other side of the body in the form of a plate.
The method of claim 2,
One end is coupled between one end and the other end of the blocking unit to enable elastic rotation with the blocking unit, and the other end is extended and an adjustment unit formed to be in close contact with the blocking unit;
A stopcock, characterized in that according to the driving of pressing the upper or lower one end of the adjusting part, the other end of the adjusting part moves toward one side or the other side of the body in a state in close contact with the other end of the blocking part.
The method of claim 1, wherein the body,
A side injection pipe coupled to the outside of the body at a position spaced apart from the blocking portion between the injection pipe and the supply pipe, the other end extending in a tube shape toward the outside to connect the inside and the outside of the body; further comprising Stopcock, characterized in that.
The method of claim 4,
One end is coupled to the other end of the side injection pipe in the form of a tube so as to be detachable or attached, and the other end extends toward a direction spaced apart from the body to seal the side injection pipe; further comprising: Stopcock, characterized in that.
The method of claim 5, wherein the side injection part,
A fixing unit having one end formed in a tube shape, coupled with the side injection pipe, and the other end formed to be reduced and extended toward a direction spaced apart from the body; And
One end is inserted into the other end of the fixing unit, the other end extends and extends toward the body from the edge of the end of the side injection pipe in close contact with the inner side of the side injection pipe, the insertion unit having a hollow formed on the side; Stopcock characterized by.
The method of claim 1,
A fixing part which surrounds the other side of the body between the injection pipe and the supply pipe, is coupled to the body so as to be rotatable with the body, and has a magnet disposed therein so as to surround a part of the body; and
The stopcock, characterized in that the fixing unit rotates the other end of the blocking unit, which exhibits magnetism, in close contact with the inner surface of the body or separates it from the inner surface of the body.

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