Irrigation aspirator

Abstract

The present invention discloses a flushing aspirator. The flushing aspirator includes: a housing; a flushing hose fixed to the housing for circulating a flushing liquid; a suction hose fixed to the housing for sucking waste liquid; an insertion tube fixedly connected to the housing, the insertion tube being in communication with the flushing hose and the insertion tube being in communication with the suction hose; a first rotating member rotatably disposed in the housing and provided with a first pressing portion, and as the first rotating member rotates, the first pressing portion can press the flushing hose to block the flushing hose; and a second rotating member rotatably disposed in the housing and provided with a second pressing portion, and as the second rotating member rotates, the second pressing portion can press the suction hose to block the suction hose. The technical solution of the present invention solves the problem of blockage of the flushing hose and the suction hose.

Description

Technical Field

[0001] The invention relates to the technical field of flushing and aspirating devices in laparoscopic surgery, and in particular to a flushing and aspirating device. Background Art

[0002] During laparoscopic surgery, an irrigation aspirator is required. The irrigation aspirator itself does not have any power. It relies on a negative pressure collection device to suck out waste fluid, and relies on gravity or a pressurizing device for irrigation. The irrigation aspirator is used, on the one hand, to flush or aspirate waste fluid to keep the surgical area clean. On the other hand, the stainless steel tube at the front end of the irrigation aspirator is used as an auxiliary instrument, such as scissors and clamps, to push aside tissue that interferes with the field of vision. Most irrigation aspirators have two buttons to control the irrigation or suction function when they are held or hand-held. This type of irrigation aspirator is prone to blockage. Once blocked, the irrigation aspirator may be scrapped. Summary of the invention

[0003] The main purpose of the present invention is to provide an irrigation aspirator, aiming to solve the problem of clogging of the irrigation hose and the suction hose.

[0004] To achieve the above object, the flushing aspirator proposed by the present invention comprises:

[0005] shell;

[0006] A flushing hose, fixed to the housing, for circulating flushing liquid;

[0007] A suction hose, fixed to the housing, for sucking waste liquid;

[0008] An insertion tube, fixedly connected to the shell, the insertion tube being in communication with the flushing hose, and the insertion tube being in communication with the suction hose;

[0009] a first rotating member rotatably disposed on the housing and provided with a first squeezing portion, wherein as the first rotating member rotates, the first squeezing portion can squeeze the flushing hose to cut off the flushing hose; and

[0010] The second rotating member is rotatably disposed on the shell and is provided with a second pressing portion. As the second rotating member rotates, the second pressing portion can press the suction hose to cut off the suction hose.

[0011] Optionally, the first rotating member and the second rotating member are integrally formed, and the first extrusion portion and the second extrusion portion are staggered in the circumferential direction.

[0012] Optionally, a first blocking portion and a second blocking portion are provided on the rotation paths of the first squeezing portion and the second squeezing portion to define the rotation ranges of the first squeezing portion and the second squeezing portion. During the process of the first squeezing portion and the second squeezing portion rotating from the position of the first blocking portion to the position of the second blocking portion, the first squeezing portion squeezes the flushing hose and the second squeezing portion squeezes the suction hose, gradually changing from tight to loose.

[0013] Optionally, a first partition and a second partition are provided inside the housing. The first squeezing portion and the first partition are respectively located on both sides of the flushing hose. The first squeezing portion can squeeze the flushing hose against the first partition to cut off the flushing hose. The second squeezing portion and the second partition are respectively located on both sides of the suction hose. The second squeezing portion can squeeze the suction hose against the first partition to cut off the suction hose.

[0014] Optionally, a circular convex column is provided inside the fixing member. The insertion tube is inserted into the inside of the circular convex column. A first cavity is formed between the outer wall of the circular convex column and the inner wall of the fixing member. A part of the three-way valve housing is inserted into the first cavity. A sealing ring is provided at the bottom of the first cavity. The housing of the three-way valve abuts against the sealing ring.

[0015] Optionally, the first rotating member is provided with a first stepped shaft portion. The first stepped shaft portion is provided with a first notch groove. The first squeezing portion includes a first sleeve portion and a first squeezing head. The inner wall of the first sleeve portion is provided with a first insertion block. The first sleeve portion is disposed in the cavity formed by the first stepped shaft portion and the housing. The first insertion block is inserted into the first notch groove. The first squeezing head can squeeze the flushing hose; and / or,

[0016] The second rotating member is provided with a second stepped shaft portion. The second stepped shaft portion is provided with a second notch groove. The second squeezing portion includes a second sleeve portion and a second squeezing head. The inner wall of the second sleeve portion is provided with a second insertion block. The second sleeve portion is disposed in the cavity formed by the second stepped shaft portion and the housing. The second insertion block is inserted into the second notch groove. The second squeezing head can squeeze the suction hose.

[0017] Optionally, the housing includes a longitudinal portion and a transverse portion. The insertion tube is fixed to the transverse portion. The first rotating member and the second rotating member are arranged at the intersection of the longitudinal portion and the transverse portion for the thumb of the hand to operate. The longitudinal portion can be held by the palm of the hand.

[0018] Optionally, the flushing and suction device further includes a tee, which is installed on the housing. The first inlet / outlet of the tee communicates with the flushing hose, the second inlet / outlet of the tee communicates with the suction hose, and the third inlet / outlet of the tee communicates with the insertion tube.

[0019] Optionally, the tee is connected to the housing through a snap structure.

[0020] Optionally, the flushing and suction device further includes a fixing member, which is installed on the housing. An annular groove is formed between the fixing member and the tee. One end of the insertion tube is provided with a flanging. The insertion tube passes through the fixing member, and the end of the insertion tube with the flanging abuts against the annular groove. The end of the insertion tube with the flanging communicates with the third inlet / outlet.

[0021] In the technical solution of the present invention, the first rotating member is used to drive the first squeezing portion to rotate, so as to cut off the flushing hose by the first squeezing portion. The second rotating member is used to drive the second squeezing portion to rotate, so as to cut off the suction hose by the second squeezing portion. That is, the flow state inside the flushing hose and the suction hose is controlled by a rotating method to control the flow of the flushing liquid and the suction waste liquid. This rotating method ensures that the flushing liquid and the suction waste liquid will not be blocked during the entire flow process. At the same time, in this rotating method, after the first rotating member and the second rotating member rotate to the in-place position, there is no need to perform corresponding operations on the first rotating member and the second rotating member anymore, which is convenient for the operator to free the fingers for toggling the first rotating member and the second rotating member, so that the operator can hold the housing to perform corresponding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the flushing and suction device of the present invention;

[0024] Figure 2 is Figure 1 a schematic structural diagram of the interior of the housing of the flushing and suction device in

[0025] Figure 3 is Figure 1 a sectional view of the first rotating member and the first mounting portion of the flushing and suction device in

[0026] Figure 4 is Figure 1Exploded view of the first rotating part and the housing of the middle flushing aspirator;

[0027] Figure 5 For Figure 1 Schematic structural view of the first mounting part of the housing of the middle flushing aspirator;

[0028] Figure 6 For Figure 1 Schematic structural view of the fixing part and the tee pipe of the middle flushing aspirator.

[0029] Explanation of the reference numerals in the drawings:

[0030]

[0031]

[0032] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0036] The present invention provides a flushing aspirator.

[0037] In an embodiment of the present invention, as Figure 1 , Figure 2 shown, the flushing and suction device includes a housing 100, a flushing hose 700, a suction hose, an insertion tube 500, a first rotating member 200, and a second rotating member 300. The flushing hose 700 is fixed to the housing 100 and is used for circulating flushing liquid; the flushing hose 700 can be fixed inside or outside the housing 100. In an embodiment of the present application, the flushing hose 700 is fixed inside the housing 100. The suction hose is fixed to the housing 100 and is used for sucking waste liquid; the suction hose can be fixed inside or outside the housing 100. In an embodiment of the present application, the suction hose is fixed inside the housing 100. The insertion tube 500 is fixedly connected to the housing 100, the insertion tube 500 is communicated with the flushing hose 700, and the insertion tube 500 is also communicated with the suction hose; in an embodiment of the present application, the insertion tube 500 and the housing 100 can be directly fixedly connected or indirectly fixedly connected, and the insertion tube 500 is communicated with the flushing hose 700 and also with the suction hose. The first rotating member 200 is provided with a first squeezing portion 900. As the first rotating member 200 rotates, the first squeezing portion 900 can squeeze the flushing hose 700 to cut off the flushing hose 700; that is to say, the rotation of the first rotating member 200 can drive the first squeezing portion 900 to rotate. As the first squeezing portion 900 rotates, the first squeezing portion 900 can squeeze the flushing hose 700, thereby cutting off the flow of the flushing liquid inside the flushing hose 700. The second rotating member 300 is provided with a second squeezing portion. As the second rotating member 300 rotates, the second squeezing portion can squeeze the suction hose to cut off the suction hose. That is to say, the rotation of the second rotating member 300 can drive the second squeezing portion to rotate. As the second squeezing portion rotates, the second squeezing portion can squeeze the suction hose, thereby cutting off the flow of the sucked waste liquid inside the suction hose.

[0038] The technical solution of the present invention drives the first squeezing portion 900 to rotate by using the first rotating member 200, and then the first squeezing portion 900 cuts off the flushing hose 700. The second rotating member 300 is used to drive the second squeezing portion to rotate, and then the second squeezing portion cuts off the suction hose. That is, the rotation method is adopted to control the flow state inside the flushing hose and the suction hose, so as to control the flow of the flushing liquid and the sucked waste liquid. This rotation method ensures that the flushing liquid and the sucked waste liquid will not be blocked during the entire flow process. At the same time, this rotation method, after the first rotating member 200 and the second rotating member 300 rotate in place, there is no need to perform corresponding operations on the first rotating member 200 and the second rotating member 300, which is convenient for the operator to free the fingers for toggling the first rotating member 200 and the second rotating member 300, enabling the operator to hold the housing 100 and perform corresponding operations.

[0039] Optionally, in the embodiments of the present application, the first rotating member 200 and the second rotating member 300 are symmetrically designed and are two independent components. However, the design of the present application is not limited thereto. In other embodiments, the first rotating member 200 and the second rotating member 300 are integrally formed, and the first pressing portion 900 and the second pressing portion are arranged in a circumferentially offset manner. That is to say, the first rotating member 200 and the second rotating member 300 are an integral body, the first pressing portion 900 and the second pressing portion are arranged on the rotating member, and the first pressing portion 900 and the second pressing portion are offset in the circumferential direction, so that the rotating member can gradually press the flushing hose 700 until the flushing hose 700 is cut off within the first rotation range, and can gradually press the suction hose until the suction hose is cut off within the second rotation range.

[0040] Optionally, in one embodiment of the present application, as Figure 4 shown, a first blocking portion 610 and a second blocking portion 620 are provided on the rotation paths of the first pressing portion 900 and the second pressing portion to define the rotation ranges of the first pressing portion 900 and the second pressing portion. During the process of the first pressing portion 900 and the second pressing portion rotating from the position of the first blocking portion 610 to the position of the second blocking portion 620, the first pressing portion 900 presses the flushing hose 700 and the second pressing portion presses the suction hose, gradually changing from tight to loose. That is to say, taking the first pressing portion 900 as an example for illustration, within the rotation circle range of the first pressing portion 900, the first blocking portion 610 and the second blocking portion 620 are provided to define the rotation range of the first pressing portion 900. During the process of the first pressing portion 900 rotating from the position of the first blocking portion 610 to the position of the second blocking portion 620, the degree of the first pressing portion 900 pressing the flushing hose 700 gradually becomes loose, that is, from the state of cutting off the flushing hose 700 to the state where the flushing hose 700 is completely unblocked. The first blocking portion 610 and the second blocking portion 620 are also provided in the rotation range where the second pressing portion is located. The second pressing portion and the suction hose are symmetrically designed with the first pressing portion 900 and the flushing hose respectively, and will not be described herein again. In one embodiment of the present application, the first pressing portion 900 and the second pressing portion are arranged inside the housing 100, and the first pressing portion 900, the second pressing portion and the housing 100 are formed as an integral body.

[0041] Optionally, in one embodiment of the present application, as Figure 2 , Figure 4As shown, a first partition 110 and a second partition are provided inside the housing 100. The first squeezing portion 900 and the first partition 110 are respectively located on both sides of the flushing hose 700 so that the first squeezing portion 900 can cut off the flushing hose 700. That is to say, the first squeezing portion 900 is on one side of the flushing hose 700, and the first partition 110 is on the other side of the flushing hose 700. The first squeezing portion 900 and the first partition 110 cooperate with each other, so that the rotation of the first squeezing portion 900 can cut off the flushing hose 700. In an embodiment of the present application, the first partition 110 and the housing 100 are integrally formed, and the first partition 110 is substantially bent along a certain curve to guide the routing of the flushing hose 700. The second partition has the same function as the first partition 110. The first partition 110 and the second partition can adopt a symmetric design, and the second partition cooperates with the second squeezing portion to perform the same function on the suction hose.

[0042] Optionally, in an embodiment of the present application, as Figure 3 , Figure 4 shown, the first rotating member 200 is rotatably mounted on the housing 100, and the first squeezing portion 900 is rotatably mounted between the housing 100 and the first rotating member 200, that is, the first squeezing portion 900 can rotate relative to the housing 100, and the first squeezing portion 900 is mounted between the housing 100 and the first rotating member 200. The first squeezing portion 900 is connected to the first rotating member 200 so that the first squeezing portion 900 can rotate with the first rotating member 200. The first squeezing portion 900 and the first rotating member 200 can be fixedly connected or connected by a keyway. When the first rotating member 200 rotates, it can drive the first squeezing portion 900 to rotate, so as to squeeze and cut off the flushing hose 700. The structures and connection relationships of the second rotating member 300 and the second squeezing portion are the same as those of the first rotating member 200 and the first squeezing portion 900, and will not be described herein again.

[0043] Optionally, in an embodiment of the present application, as Figure 4 , Figure 5As shown, the first rotating member 200 is provided with a first stepped shaft portion. The first stepped shaft portion is provided with a first notch groove 240. The first stepped shaft portion includes a first shaft portion 210 and a second shaft portion 220 formed integrally, and the diameters of the first shaft portion 210 and the second shaft portion 220 are different. Grooves are provided on both the first shaft portion 210 and the second shaft portion 220, and the grooves on the first shaft portion 210 and the second shaft portion 220 form the first notch groove 240. The first pressing portion 900 includes a first sleeve portion 910 and a first pressing head 930 integrally formed. The inner wall of the first sleeve portion 910 is provided with a first insertion block 920. The housing 100 is provided with a first installation portion 600 for installing the first rotating member 200, and the first rotating member 200 is rotatably installed at the first installation portion 600. The first installation portion 600 is provided with an annular convex 630. An annular cavity 640 is formed between the outer wall of the annular convex 630 and the inner wall of the first installation portion 600. The first sleeve portion 910 is disposed in the cavity formed by the first stepped shaft portion and the housing 100 (i.e., the annular cavity 640). That is to say, the first sleeve is sleeved on the first shaft portion 210, and the first sleeve is located in the annular cavity 640. The first insertion block 920 is inserted into the first notch groove 240, that is, the first insertion block 920 penetrates through the first notch groove 240. Thus, the rotation of the first rotating member 200 can drive the first pressing portion 900 to rotate, so that the first pressing head 930 can press the flushing hose 700. A buckle 230 is provided on the second shaft portion 220. The second shaft portion 220 passes through the annular convex 630 and is clamped on the first installation portion 600, that is, the second shaft portion 220 passes through the center of the annular convex 630 and is clamped on the first installation portion 600. A first blocking portion 610 and a second blocking portion 620 are correspondingly provided on the first installation portion 600. The structures and connection relationships of the second rotating member 300 and the second pressing portion are the same as those of the first rotating member 200 and the first pressing portion 900, and will not be described herein again.

[0044] Optionally, in an embodiment of the present application, such as Figure 1As shown, the shape of the outer shell 100 is generally similar to the shape of a pistol. The outer shell includes a longitudinal portion 130 and a transverse portion 140. The insertion tube 500 is fixed to the transverse portion 140. The first rotating member 200 and the second rotating member 300 are disposed at the intersection of the longitudinal portion 130 and the transverse portion 140 for the thumb of the hand to operate, and the longitudinal portion 130 can be held by the palm of the hand. That is to say, the palm of the hand and the four fingers of the hand hold the longitudinal portion, and the first rotating member 200 and the second rotating member 300 are disposed at a place convenient for the thumb to touch. In this way, when the flushing aspirator of the present application is used as an auxiliary instrument, that is, when the insertion tube 500 is used to move the tissue and clear the field of view, the hand does not need to operate the rotating member, so that the hand can hold the longitudinal portion to move the tissue. In an embodiment of the present application, the insertion tube 500 is a stainless steel tube.

[0045] Optionally, in an embodiment of the present application, as Figure 2 , Figure 6 shown, the flushing aspirator further includes a three-way pipe 800. The three-way pipe 800 is installed on the outer shell 100. The first inlet / outlet of the three-way pipe 800 communicates with the flushing hose 700. The second inlet / outlet of the three-way pipe 800 communicates with the suction hose. The third inlet / outlet of the three-way pipe 800 communicates with the insertion tube 500. That is to say, the three-way pipe 800 has a first inlet / outlet, a second inlet / outlet and a third inlet / outlet, and these three inlets / outlets communicate with the flushing hose 700, the suction hose and the insertion tube 500 in sequence. Thus, when flushing, the flushing liquid enters from the flushing hose 700. At this time, the suction hose can be in a cut-off state and flows into the insertion tube 500 through the three-way pipe 800, so that flushing can be performed. When sucking waste liquid, at this time, the flushing hose 700 can be in a cut-off state. The waste liquid flows into the insertion tube 500 and then flows into the suction hose through the three-way pipe 800, so that the waste liquid can be sucked.

[0046] Optionally, in an embodiment of the present application, the three-way pipe 800 is connected to the outer shell 100 through a snap structure. Through the snap structure, the three-way pipe 800 is convenient to be installed on the outer shell 100 and removed from the outer shell 100.

[0047] Optionally, in an embodiment of the present application, as Figure 6As shown, the flushing and aspirating device further includes a fixing member 400, which is installed on the housing 100. An annular groove 420 is formed between the fixing member 400 and the three-way pipe 800. One end of the insertion pipe 500 is provided with a flange 510. The insertion pipe 500 passes through the fixing member 400, and the end of the insertion pipe 500 with the flange 510 abuts against the annular groove 420. The end of the insertion pipe 500 with the flange 510 communicates with the third inlet / outlet. That is to say, the insertion pipe 500 passes through the center of the fixing member 400, the flange 510 of the insertion pipe 500 abuts against the annular groove 420, and at the same time, the insertion pipe 500 communicates with the third inlet / outlet.

[0048] Optionally, in an embodiment of the present application, as Figure 6 shown, a circular convex column 410 is provided inside the fixing member 400. A first cavity is formed between the outer wall of the circular convex column 410 and the inner wall of the fixing member 400. An annular groove 420 is formed between the end of the circular convex column 410 and the three-way pipe 800. A part of the housing 100 of the three-way pipe 800 is inserted into the first cavity. A sealing ring 120 is provided at the bottom of the first cavity. The end of the housing 100 of the three-way valve abuts against the sealing ring 120. The end of the insertion pipe 500 with the flange 510 passes through the center of the circular convex column 410 and abuts against the annular groove 420. The other end of the insertion pipe 500 is provided with a plurality of through holes distributed along the circumferential direction, and the through holes on the insertion pipe 500 have a better flushing effect.

[0049] Optionally, in an embodiment of the present application, the fixing member 400 is connected to the housing 100 through a snap structure. Through the snap structure, the fixing member 400 is convenient to be installed on the housing 100 and removed from the housing 100.

[0050] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A flushing aspirator, characterized in that, it includes: a housing; a flushing hose fixed to the housing for circulating the flushing liquid; a suction hose fixed to the housing for sucking waste liquid; an insertion tube fixedly connected to the housing, the insertion tube communicating with the flushing hose and the insertion tube communicating with the suction hose; a first rotating member rotatably provided in the housing and provided with a first squeezing portion, as the first rotating member rotates, the first squeezing portion can squeeze the flushing hose to cut off the flushing hose; and a second rotating member rotatably provided in the housing and provided with a second squeezing portion, as the second rotating member rotates, the second squeezing portion can squeeze the suction hose to cut off the suction hose; a first blocking portion and a second blocking portion are provided on the rotation paths of the first squeezing portion and the second squeezing portion to define the rotation ranges of the first squeezing portion and the second squeezing portion. During the process of the first squeezing portion and the second squeezing portion rotating from the position of the first blocking portion to the position of the second blocking portion, the squeezing of the flushing hose by the first squeezing portion and the squeezing of the suction hose by the second squeezing portion gradually become loose from tight, that is, from the state of cutting off the hose to the state of the hose being completely unblocked; the first rotating member is provided with a first stepped shaft portion, the first stepped shaft portion is provided with a first notch groove, the first squeezing portion includes a first sleeve portion and a first squeezing head, the inner wall of the first sleeve portion is provided with a first insertion block, the first sleeve portion is arranged in the cavity formed by the first stepped shaft portion and the housing, the first insertion block is inserted into the first notch groove, and the first squeezing head can squeeze the flushing hose; and / or, the second rotating member is provided with a second stepped shaft portion, the second stepped shaft portion is provided with a second notch groove, the second squeezing portion includes a second sleeve portion and a second squeezing head, the inner wall of the second sleeve portion is provided with a second insertion block, the second sleeve portion is arranged in the cavity formed by the second stepped shaft portion and the housing, the second insertion block is inserted into the second notch groove, and the second squeezing head can squeeze the suction hose.

2. The flushing aspirator according to claim 1, characterized in that, the first rotating member and the second rotating member are integrally formed, and the first squeezing portion and the second squeezing portion are arranged in a circumferentially offset manner.

3. The flushing aspirator according to claim 1, characterized in that, a first partition and a second partition are provided inside the housing, the first squeezing portion and the first partition are respectively located on both sides of the flushing hose, the first squeezing portion can squeeze the flushing hose against the first partition to cut off the flushing hose, the second squeezing portion and the second partition are respectively located on both sides of the suction hose, and the second squeezing portion can squeeze the suction hose against the first partition to cut off the suction hose.

4. The flushing aspirator according to claim 1, characterized in that, The housing includes a longitudinal portion and a transverse portion. The insertion tube is fixed to the transverse portion. The first rotating member and the second rotating member are arranged at the intersection of the longitudinal portion and the transverse portion for the thumb of the hand to operate, and the longitudinal portion can be held by the palm of the hand.

5. The flushing and suction device according to claim 1, wherein, the flushing and suction device further includes a three-way pipe, the three-way pipe is installed on the housing, a first inlet / outlet of the three-way pipe communicates with the flushing hose, a second inlet / outlet of the three-way pipe communicates with the suction hose, and a third inlet / outlet of the three-way pipe communicates with the insertion tube.

6. The flushing and suction device according to claim 5, wherein, the three-way pipe is connected to the housing through a snap structure.

7. The flushing and suction device according to claim 5, wherein, the flushing and suction device further includes a fixing member, the fixing member is installed on the housing, an annular groove is formed between the fixing member and the three-way pipe, one end of the insertion tube is provided with a flange, the insertion tube passes through the fixing member, and the end of the insertion tube with the flange abuts against the annular groove, and the end of the insertion tube with the flange communicates with the third inlet / outlet.

8. The flushing and suction device according to claim 7, wherein, a circular convex column is provided inside the fixing member, the insertion tube passes through the inside of the circular convex column, a first cavity is formed between the outer wall of the circular convex column and the inner wall of the fixing member, a part of the housing of the three-way valve is inserted into the first cavity, a sealing ring is provided at the bottom of the first cavity, and the housing of the three-way valve abuts against the sealing ring.

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