WO2021172680A1

WO2021172680A1 - Suction and irrigation device arranged in series

Info

Publication number: WO2021172680A1
Application number: PCT/KR2020/013336
Authority: WO
Inventors: 이기환
Original assignee: 주식회사 오렌지메딕스
Priority date: 2020-02-25
Filing date: 2020-09-29
Publication date: 2021-09-02
Also published as: KR102362473B1; KR20210108058A

Abstract

The present invention provides a suction and irrigation device arranged in series, the device comprising: a housing part comprising a front chamber and rear chamber which are partitioned by an inner partition, and are connected to each other by a connection hole penetratingly formed in the inner partition, a first connector and second connector which are formed on the front surface of the front chamber so as to be connected to the front chamber, and a third connector which is formed on the rear surface of the rear chamber so as to be connected to the rear chamber; a holder part coupled to the first connector, and having coupled thereto a probe which is inserted in the abdominal cavity of a patient; and a suction-supply part comprising a supply valve provided to the front chamber, and a suction valve provided to the rear chamber.

Description

Serial batch type suction cleaning device

The present invention relates to a series arrangement type suction washing apparatus, and more particularly, to a series arrangement type suction washing apparatus which is easy to operate.

In general, endoscopic (or laparoscopic) surgery is a minimally invasive surgery, and has been rapidly developed in recent years due to advantages such as reduction of pain, infection, wounds, hospitalization period, etc. of a patient.

In laparoscopic surgery, a surgical instrument that supplies a cleaning solution for cleaning the surgical site of the patient and discharges the contaminants to the outside of the patient's body to remove the contaminants after washing the patient's surgical site, that is, laparoscopic suction-washing. A laparoscopic suction and irrigation system is used.

A general laparoscopic suction-washing device includes a probe inserted into the patient's body, a device body having a mixing chamber connected to the probe, a cleaning flow path connected to the mixing chamber to supply a cleaning solution into the patient's body, and contaminants to the patient's body. It includes a discharge path for discharging to the outside.

Laparoscopic suction-washing devices are used in various types, and continuous development of laparoscopic suction-washing devices for easier operation is required.

As a prior art document, there is Republic of Korea Patent Publication No. 1837055 (2018.03.09. Announcement).

In order to solve the above problems, the technical problem to be achieved by the present invention is to provide an easy-to-operate serial arrangement type suction washing device.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical object, an embodiment of the present invention includes a front chamber and a rear chamber partitioned by an inner partition wall and connected to each other by a connection hole formed through the inner partition wall, and the front side of the front chamber a housing portion having a first connector and a second connector formed to be connected to the front chamber, and a third connector formed to be connected to the rear chamber at a rear surface of the rear chamber; a holder portion coupled to the first connector and coupled to the probe inserted into the patient's abdominal cavity; And it provides a serial arrangement type suction washing apparatus including a supply valve provided in the front chamber, and a suction supply unit having a suction valve provided in the rear chamber.

The supply valve forms a front passage space connected to the first connector, and selectively connects the front passage space to the second connector while reciprocating along the axial direction of the front chamber, so that the probe is used for cleaning. fluid may be supplied.

The suction valve forms a rear passage space connected to the connection hole and selectively connects the rear passage space to the third connector while reciprocating along the axial direction of the rear chamber through the probe. of blood or filth may be aspirated.

In an embodiment of the present invention, the first connector may have an expanded pipe portion having an enlarged diameter at the front end portion, and a locking hole may be formed through the expanded pipe portion.

In an embodiment of the present invention, the holder portion is formed through the center in the axial direction and has a first through hole through which the probe is inserted, and the rear end thereof is connected to a plug into which the expanded tube portion is inserted, and the rear end of the plug. It is inserted into the expansion tube portion and may have a locking member having an elastic hook that is detachably coupled to the locking hole.

In an embodiment of the present invention, the locking member includes a plurality of support frames extending in the axial direction of the expansion tube to the rear end of the plug, connected to the rear end of the support frame and corresponding to the inner diameter of the expansion tube It may have a pressure plate having a diameter and a second through hole formed through the center in the axial direction so that the probe is inserted therethrough.

In an embodiment of the present invention, the holder portion may have a sealing member provided between the pressure plate and the bottom surface of the expansion tube.

In an embodiment of the present invention, the elastic lock has an elastic bar having a rear end connected to the pressing plate and extending in the plug direction, and a locking protrusion formed to protrude in a radial direction at the front end of the elastic bar and coupled to the locking hole. can have

In an embodiment of the present invention, the supply valve includes a supply valve body formed to be spaced apart from the inner circumferential surface of the front chamber, and a pair of first protrusions formed at both ends of the supply valve body and closely contacting the inner circumferential surface of the front chamber. It may have a flange.

The front flow passage space is an inner space surrounded by an outer peripheral surface of the supply valve body, an inner peripheral surface of the front chamber, and the pair of first flanges, and may be moved according to the movement of the supply valve.

In an embodiment of the present invention, the supply valve may have a first hermetic ring in close contact with the outer peripheral surface of the first flange and the inner peripheral surface of the front chamber.

In an embodiment of the present invention, the supply valve body has a first insertion groove recessed along the axial direction at one end thereof, the suction supply unit is provided inside the front chamber, and one end is supported by the front chamber and the other end may have a first elastic member inserted into the first insertion groove to elastically support the supply valve.

In an embodiment of the present invention, the supply valve body may further have a first support protrusion formed in the first insertion groove along the axial direction of the supply valve body and provided inside the first elastic member.

In an embodiment of the present invention, the front chamber may have a first fixing protrusion formed to surround one end of the first elastic member.

In an embodiment of the present invention, the connection hole may be formed so that the front flow passage space and the rear flow passage space are always connected regardless of the positions of the supply valve and the suction valve.

In an embodiment of the present invention, the central cross-sections of the first connector, the second connector, the third connector, the supply valve, and the suction valve may be located on the same plane.

According to an embodiment of the present invention, the suction supply unit supplies the cleaning fluid only by operating the supply valve and the suction valve, sucks blood or dirt in the patient's abdominal cavity, or the inside of the front chamber and the rear chamber, the second connector and Because the suction tube can be washed, it can be convenient to use.

Further, according to the embodiment of the present invention, since the front chamber, the rear chamber, the first connector, the second connector, and the third connector can be formed so that their central cross-sections are positioned on the same plane, the serial arrangement type suction washing device may be formed to have a thin thickness.

The effects of the present invention are not limited to the above effects, but it should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view showing a serial arrangement type suction washing apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a housing part and a suction supply part of the serial arrangement type suction washing apparatus of FIG. 1 .

3 to 5 are views illustrating the operation of the suction supply unit of FIG. 2 .

FIG. 6 is an exploded perspective view showing the holder part of the serial arrangement type suction washing apparatus of FIG. 1 .

FIG. 7 is a cross-sectional view showing the holder part of the serial arrangement type suction washing apparatus of FIG. 6 .

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member in between. “Including cases where it is In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a series arrangement type suction washing apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a housing portion and a suction supply unit of the series arrangement type suction washing apparatus of FIG. 1 , and FIGS. 3 to FIG. 5 is an operational view of the suction supply unit of FIG. 2 .

1 to 5 , the serial arrangement type suction washing apparatus may include a housing part 100 , a holder part 200 , and a suction supply part 300 .

Hereinafter, for convenience of description, it will be described as a front end/front end/front and a rear end/rear end/rear based on the positions of the housing part 100 and the holder part 200 . That is, in the housing part 100 , the direction of the holder 200 is the front end/front end/front, and the direction of the housing 100 in the holder 200 is the rear end/rear end/rear.

The housing part 100 may have a front chamber 111 , a rear chamber 112 , a first connector 115 , a second connector 116 , and a third connector 117 .

The housing part 100 may have a housing body 110 and a housing cover 118 covering the housing body 110 . The housing part 100 may have an inner partition 113 formed inside the housing body 110 , and a front chamber 111 and a rear chamber 112 partitioned by the inner partition 113 . A connection hole 114 may be formed through the inner partition wall 113 , and the front chamber 111 and the rear chamber 112 may be connected to each other by the connection hole 114 .

Also, the housing part 100 may have a first connector 115 , a second connector 116 , and a third connector 117 .

The first connector 115 and the second connector 116 may be formed to be connected to the front chamber 111 from the front side of the front chamber 111 . The first connector 115 and the second connector 116 may be formed on the same vertical plane, and the second connector 116 may be formed at a lower position than the first connector 115 .

The third connector 117 may be formed to be connected to the rear chamber 112 on the rear surface of the rear chamber 112 . The third connector 117 may have the same central axis as the second connector 116 .

The front chamber 111 , the rear chamber 112 , the first connector 115 , the second connector 116 , and the third connector 117 are positioned on a horizontal plane having the same central cross-section to form an imaginary straight line (VL). It can be arranged in series along

The suction supply unit 300 may have a supply valve 310 and a suction valve 330 .

The supply valve 310 may be provided in the front chamber 111 . The supply valve 310 may have a supply valve body 311 and a first flange 312 .

The supply valve body 311 may be provided inside the front chamber 111 and may reciprocate along the axial direction of the front chamber 111 . In addition, the supply valve body 311 may be formed so that the outer peripheral surface is spaced apart from the inner peripheral surface of the front chamber (111). Accordingly, a front flow passage space S1 may be formed between the supply valve body 311 and the front chamber 111 .

The first flange 312 may be formed as a pair, and may be protruded from both ends of the supply valve body 311 to be in close contact with the inner circumferential surface of the front chamber 111 . The front flow passage space (S1) may be an inner space surrounded by the outer peripheral surface of the supply valve body 311, the inner surface of the front chamber 111, and the pair of first flanges 312, and the supply valve 310 is When moving, the front flow passage space (S1) may also be moved accordingly.

In order to increase the airtight performance in the first flange 312 , the supply valve 310 may have a first hermetic ring 313 provided on the outer peripheral surface of the first flange 312 . The first hermetic ring 313 may be in close contact with the inner circumferential surface of the front chamber 111 .

In addition, the supply valve body 311 may have a first insertion groove 314 recessed along the axial direction at one end.

In addition, the suction supply unit 300 may have a first elastic member (350). The first elastic member 350 may be provided inside the front chamber 111 , one end supported by the front chamber 111 and the other end inserted into the first insertion groove 314 to close the supply valve 310 . It can support bullets. The supply valve body 311 is formed along the axial direction of the supply valve body 311 in the first insertion groove 314 and further has a first support protrusion 315 provided inside the first elastic member 350 . can

Hereinafter, for convenience, the direction in which the supply valve 310 moves is downward/downward so that the first elastic member 350 is compressed with reference to FIGS. 2 to 5, and the supply valve ( 310) will be described as moving upward/upward.

The suction supply unit 300 has a first fixing protrusion ( 125) may have.

A first pressing part 316 may be provided at the upper end of the supply valve body 311 . A display unit indicating the flow direction of the fluid when the supply valve 310 is lowered by pressing the first pressing unit 316 may be formed on the upper surface of the first pressing unit 316 .

The front flow space S1 may be connected to the connection hole 114 and the first connector 115 which are always formed in the inner partition 113 regardless of the position of the supply valve 310 .

The supply valve 310 reciprocates along the axial direction of the front chamber 111 , that is, the axial direction of the supply valve body 311 so that the front flow space S1 is connected only to the first connector 115 , or the front flow path The space S1 may be configured to connect the first connector 115 and the second connector 116 . That is, the supply valve 310 may selectively connect the front passage space S1 and the second connector 116 to each other. Specifically, when the supply valve 310 is pushed upward by the elastic restoring force of the first elastic member 350 , the front flow passage space S1 is connected to the first connector 115 and the second connector 116 . may not be connected with And, when the supply valve 310 is pressed downward, the front flow passage space S1 may be connected to the second connector 116 as well.

The suction valve 330 may be provided in the rear chamber 112 . The suction valve 330 may have a suction valve body 331 and a second flange 332 .

The suction valve body 331 may be provided inside the rear chamber 112 , and may reciprocate along the axial direction of the rear chamber 112 . In addition, the suction valve body 331 may be formed so that the outer peripheral surface is spaced apart from the inner peripheral surface of the rear chamber (112). Accordingly, a rear flow passage space S2 may be formed between the suction valve body 331 and the rear chamber 112 .

The second flange 332 may be formed as a pair, and may be protruded from both ends of the suction valve body 331 to be in close contact with the inner circumferential surface of the rear chamber 112 . That is, the rear flow passage space (S2) may be an inner space surrounded by the outer peripheral surface of the suction valve body 331, the inner surface of the rear chamber 112, and a pair of second flanges 332, and the suction valve 330 ) is moved, the rear flow passage space (S2) may also be moved accordingly.

In order to increase the airtight performance in the second flange 332 , the suction valve 330 may have a second hermetic ring 333 provided on the outer circumferential surface of the second flange 332 . The second hermetic ring 333 may be in close contact with the inner circumferential surface of the rear chamber 112 .

In addition, the suction supply unit 300 may have a second elastic member (360). The second elastic member 360 may be provided inside the rear chamber 112 , and one end is supported by the rear chamber 112 and the other end is supported by the suction valve 330 to elastically support the suction valve 330 . can do.

The rear chamber 112 may have a second fixing protrusion 126 formed to surround the lower end of the second elastic member 360 at the lower portion, and the suction valve body 331 is the upper end of the second elastic member 360 . It may have a second insertion groove 334 recessed along the axial direction so as to be inserted.

The suction valve body 331 is formed along the axial direction of the suction valve body 331 in the second insertion groove 334 and further has a second support protrusion 335 provided on the inside of the second elastic member 360 . can

A second pressing part 336 may be provided at the upper end of the suction valve body 331, and when the second pressing part 336 is pressed on the upper surface of the second pressing part 336, the suction valve 330 is lowered. A display unit capable of indicating the flow direction of the fluid may be further formed.

The rear flow passage space S2 may always be connected to the connection hole 114 formed in the inner partition wall 113 regardless of the position of the suction valve 330 .

The suction valve 330 is reciprocally moved along the axial direction of the rear chamber 112, that is, the axial direction of the suction valve body 331, so that the rear flow path space S2 and the third connector 117 are selectively connected. have. Specifically, when the suction valve 330 is pushed upward, the rear flow passage space S2 is not connected to the third connector 117, and when it moves downward, the rear flow passage space S2 and the third connector 117 are can be connected As a whole, except for the first connector 115 , the suction supply unit 300 may be formed symmetrically with respect to the inner partition wall 113 .

Referring to FIG. 1 , the second connector 116 may be connected to the pump 500 through the supply tube 121 , and the third connector 117 may be connected to the suction unit 510 through the suction tube 122 . Also, the pump 500 may supply a cleaning fluid.

As shown in FIG. 2, in the state in which the suction valve 330 is raised, the suction force provided by the suction unit 510 is provided to the third connector 117, but is not provided to the rear flow path space S2. Blood or filth from the patient's abdominal cavity cannot be aspirated. In this case, the second elastic member 360 supports the lower portion of the suction valve 330 so that the suction valve 330 does not move downward.

In addition, in the state in which the supply valve 310 is raised, the washing fluid provided from the pump 500 is provided to the second connector 116 but not provided to the front flow space S1, so that the patient's abdominal cavity cannot be supplied At this time, the first elastic member 350 supports the lower portion of the supply valve 310 so that the supply valve 310 does not move downward.

However, as shown in FIG. 3 , when the first pressing part 316 is pressed by an external force and the supply valve 310 is lowered, the front flow passage space S1 may be connected to the second connector 116 . Regardless of the positional state of the supply valve 310 and the suction valve 330, the connection hole 114 can always be connected to the front flow path space S1 and the rear flow path space S2. The moving cleaning fluid M1 may be moved to the first connector 115 and may be supplied to the patient through the probe 400 . At this time, since the suction valve 330 is in an elevated state, even if the washing fluid M1 of the front flow path space S1 moves to the rear flow path space S2 through the connection hole 114, the washing fluid M1 is not moved to the third connector 117 .

And, when the suction valve 330 is lowered as shown in FIG. 4 , the rear passage space S2 is connected to the third connector 117 and the front passage space S1 and the first connector 115 through the connection hole 114 . ) can also be associated with In this case, the suction force provided by the suction unit 510 may be provided to the probe 400 through the first connector 115 , and blood or dirt M2 in the patient's abdominal cavity may be sucked. In this case, the blood or dirt M2 in the front flow passage space S1 may not move to the second connector 116 by the suction force provided by the suction unit 510 .

Meanwhile, as in FIG. 5 , when both the supply valve 310 and the suction valve 330 are lowered, the front flow path space S1 is connected to both the first connector 115 and the second connector 116 , and the rear flow path The space S2 may be connected to the third connector 117 . Then, the cleaning fluid M1 supplied to the front chamber 111 may move to the rear chamber 112 by the suction force provided by the suction unit 510 to move to the suction unit 510 . In this case, the interior of the front chamber 111 and the rear chamber 112, and the third connector 117 and the suction tube 122 can be used when cleaning.

As such, the suction supply unit 300 according to the present invention supplies a cleaning fluid only by operating the supply valve 310 and the suction valve 330, or sucks blood or dirt in the patient's abdominal cavity, or the front chamber 111 and the rear Since the inside of the chamber 112 and the third connector 117 and the suction tube 122 can be washed, it can be convenient to use.

As described above, the front chamber 111 , the rear chamber 112 , the first connector 115 , the second connector 116 , and the third connector 117 are positioned on a horizontal plane having the same central cross-section to create a virtual Since they can be arranged in series along the straight line VL of

FIG. 6 is an exploded perspective view showing the holder part of the tandem suction washing device of FIG. 1 , and FIG. 7 is a cross-sectional view showing the holder part of the tandem suction washing device of FIG. 6 .

As shown in FIGS. 6 and 7 , the holder 200 may be coupled to the first connector 115 , and the probe 400 inserted into the patient's abdominal cavity may be coupled thereto.

The holder 200 may have a plug 210 and a hook 230 .

The first connector 115 may have an expansion tube 131 at the front end. The expansion tube 131 may have an enlarged diameter than the first connector 115 . A locking hole 132 may be formed through the expansion tube 131 . A plurality of locking holes 132 may be formed.

The plug 210 may have a first through hole 211 which is formed through the center in the axial direction and through which the probe 400 is inserted. An insertion portion 212 inserted into the expansion tube 131 may be formed at the rear end of the plug 210 , and the front end of the plug 210 has a larger diameter than the insertion portion 212 and is inserted into the insertion portion 212 . ) and the step difference, and when the insertion part 212 is inserted into the expansion tube 131, the head portion 213 caught on the front end of the expansion tube 131 may be formed.

The locking hole 230 is connected to the rear end of the plug 210 and may be inserted into the expansion tube 131 , and may have an elastic lock 231 detachably coupled to the locking hole 132 . In addition, the hook 230 may have a support frame 232 and a pressing plate (233).

The support frame 232 may be formed to extend in the axial direction of the expansion tube 131 at the rear end of the plug 210 . A plurality of support frames 232 may be formed, and spaces 238 may be formed inside.

The pressure plate 233 may be connected to the rear end of the support frame 232 . The pressure plate 233 may be formed to have a diameter corresponding to the inner diameter of the expansion tube 131, and has a second through hole 234 formed through the center in the axial direction so that the probe 400 is inserted therethrough. can

The holder 200 may have a sealing member 250 . The sealing member 250 may be provided between the pressure plate 233 and the bottom surface 133 of the expansion tube 131 , and may have a third through hole 251 through which the probe 400 passes. The probe 400 may be inserted into the first connector 115 through the first through hole 211 , the second through hole 234 , and the third through hole 251 . The sealing member 250 is pressed by the pressure plate 233 and the bottom surface 133 of the expansion tube 131 to prevent leakage of the washing fluid flowing from the first connector 115 or blood or dirt in the patient's abdominal cavity. can do.

The elastic stopper 231 may have an elastic bar 236 and a locking protrusion 237 .

The elastic bar 236 may have a rear end connected to the pressure plate 233 and formed to extend in the direction of the plug 210 . The elastic bar 236 may be formed between the support frames 232 . The space 238 formed between the elastic bars 236 may provide a space for the elastic bars 236 to be deformed.

The locking protrusion 237 may be formed to protrude in a radial direction from the front end of the elastic bar 236 , and may be coupled to the locking hole 132 . The elastic bar 236 may provide an elastic force so that the locking protrusion 237 may be coupled to the locking hole 132 . When the elastic bar 236 is deformed toward the space 238 and the locking protrusion 237 comes out of the locking hole 132 , the plug 210 may be separated from the expansion tube 131 .

The description of the present invention described above is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

During laparoscopic surgery, a surgical instrument that supplies a cleaning solution to clean the surgical site of the patient and discharges the contaminants to the outside of the patient's body to remove the contaminants after washing the patient's surgical site, that is, laparoscopic suction- Laparoscopic suction and irrigation systems are used.

In particular, the suction cleaning device according to the present invention, which corresponds to a laparoscopic suction-washing mechanism, can be widely used in industry because it is easy to operate.

Claims

A front chamber and a rear chamber partitioned by the inner partition wall and connected to each other by a connection hole formed through the inner partition wall, and a first connector and a second connector formed on the front surface of the front chamber to be connected to the front chamber; , a housing portion having a third connector formed to be connected to the rear chamber on the rear surface of the rear chamber;

a holder portion coupled to the first connector and coupled to the probe inserted into the patient's abdominal cavity; and

It is provided in the front chamber to form a front passage space connected to the first connector, and the front passage space is selectively connected to the second connector while reciprocating along the axial direction of the front chamber, so that the probe is used. A supply valve for supplying a cleaning fluid and a rear passage space provided in the rear chamber and connected to the connection hole are formed, and the rear passage space is reciprocally moved along the axial direction of the rear chamber to form the third connector A serial arrangement type suction washing device comprising a suction supply unit having a suction valve that selectively connects to the probe so that blood or dirt in the patient's abdominal cavity is sucked through the probe.
According to claim 1,

The first connector has an enlarged pipe portion having an enlarged diameter at the front end portion, and a catching hole is formed through the expanded tube portion.
3. The method of claim 2,

the holder part

A plug which is formed through the center in the axial direction and has a first through hole through which the probe is inserted, the rear end of which is inserted into the expansion tube;

A serial arrangement type suction washing apparatus, characterized in that it has a locking port connected to the rear end of the plug, inserted into the expansion tube, and having an elastic catch that is detachably coupled to the locking hole.
4. The method of claim 3,

The catch is

A plurality of support frames extending in the axial direction of the expansion pipe to the rear end of the plug;

Serial, characterized in that it has a pressure plate connected to the rear end of the support frame and having a diameter corresponding to the inner diameter of the expansion tube, and having a second through hole in the center so that the probe is inserted therethrough in the axial direction. Batch type suction washer.
5. The method of claim 4,

The holder portion is a serial arrangement type suction cleaning device, characterized in that it has a sealing member provided between the pressure plate and the bottom surface of the expansion tube.
5. The method of claim 4,

The elastic latch is

an elastic bar having a rear end connected to the pressure plate and extending in the plug direction;

A serial arrangement type suction washing apparatus, characterized in that it has a locking projection formed to protrude in the radial direction from the front end of the elastic bar is coupled to the locking hole.
7. The method according to any one of claims 1 to 6,

The supply valve is

a supply valve body formed to be spaced apart from the inner circumferential surface of the front chamber;

Having a pair of first flanges protruding from both ends of the supply valve body and being in close contact with the inner circumferential surface of the front chamber,

The front flow passage space is an inner space surrounded by the outer peripheral surface of the supply valve body, the inner peripheral surface of the front chamber, and the pair of first flanges, and is moved according to the movement of the supply valve. washing device.
8. The method of claim 7,

The supply valve is

A serial arrangement type suction washing apparatus, characterized in that it has a first hermetic ring in close contact with the outer circumferential surface of the first flange and the inner circumferential surface of the front chamber.
8. The method of claim 7,

The supply valve body has a first insertion groove recessed along the axial direction at one end,

The suction supply unit

Serial batch type suction washing, characterized in that it has a first elastic member provided inside the front chamber, one end supported by the front chamber and the other end inserted into the first insertion groove to elastically support the supply valve. Device.
10. The method of claim 9,

The supply valve body is formed in the first insertion groove along the axial direction of the supply valve body, the serial arrangement type suction washing apparatus, characterized in that it further has a first support protrusion provided inside the first elastic member.
10. The method of claim 9,

wherein the front chamber has a first fixing protrusion formed to surround one end of the first elastic member.
7. The method according to any one of claims 1 to 6,

The connection hole is a series arrangement type suction washing apparatus, characterized in that the connection hole is formed so that the front flow passage space and the rear passage space are always connected regardless of the positions of the supply valve and the suction valve.
7. The method according to any one of claims 1 to 6,

The first connector, the second connector, the third connector, the supply valve and the central cross-section of the suction valve are located on the same plane.