Multifunctional aspirator for thoracoscopic surgery

Abstract

The embodiment of the utility model provides a multifunctional aspirator for thoracoscopic surgery. The multifunctional aspirator for the thoracoscopic surgery comprises a three-cavity tube, wherein the three-cavity tube comprises a suction tube, a water injection tube and an inflation tube which are arranged in parallel; the main pipe is connected to the three-cavity pipe and is communicated with the three-cavity pipe; the change-over switch is movably connected between the three-cavity tube and the main tube, the change-over switch is used for switching the main tube and the three-cavity tube among a first communication state, a second communication state and a third communication state, the first communication state is that the main tube is communicated with the suction tube, the second communication state is that the main tube is communicated with the suction tube, and the third communication state is that the main tube is communicated with the suction tube. In the second communication state, the main pipe is communicated with the water injection pipe, and in the third communication state, the main pipe is communicated with the gas filling pipe. According to the multifunctional aspirator for the thoracoscope in the embodiment of the invention, the trauma of an operation can be relatively small, and the pain of a patient is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a multifunctional aspirator for thoracoscopy. BACKGROUND

[0002] With the rapid development of thoracoscopy, thoracoscopy is widely applied to lung cancer, lung nodule, mediastinal tumor and esophageal cancer and various diseases, and has the advantages of small surgical trauma, light postoperative pain and the like. The aspirator is an important instrument in thoracoscopy, which can remove bleeding, exudation, smoke and contents of thoracic organs in the operation, reduce pollution opportunities and clarify the field of vision of doctors.

[0003] In the prior art, the aspirator usually includes an aspiration tube, a water injection tube and an inflation tube, liquid in the body of a patient is sucked out through the aspiration tube, water is sent into the body of the patient through the water injection tube, and gas is input into the body of the patient through the inflation tube, so that the aspirator has the functions of aspiration, gas sending and water sending. However, the three tubes need to be bundled and inserted into the body of the patient at the same time, so that the surgical trauma is large and the pain of the patient is increased. CONTENT OF THE INVENTION

[0004] The application aims to provide a multifunctional aspirator for thoracoscopy, so as to solve the problem that the existing multifunctional aspirator for thoracoscopy causes large surgical trauma and increases the pain of the patient.

[0005] In order to solve the above technical problems, the application is implemented as follows:

[0006] The application discloses a multifunctional aspirator for thoracoscopy, which comprises:

[0007] a three-lumen tube, the three-lumen tube comprising an aspiration tube, a water injection tube and an inflation tube arranged side by side, the aspiration tube being used for sucking out liquid in the body of a patient, the water injection tube being used for sending water into the body of the patient, and the inflation tube being used for inputting gas into the body of the patient;

[0008] a main tube, the main tube being connected to the three-lumen tube and being in communication with the three-lumen tube;

[0009] and a switching switch, the switching switch being movably connected between the three-lumen tube and the main tube, the switching switch being used for switching the main tube and the three-lumen tube between a first communication state, a second communication state and a third communication state, wherein the first communication state is that the main tube is in communication with the aspiration tube, the second communication state is that the main tube is in communication with the water injection tube, and the third communication state is that the main tube is in communication with the inflation tube.

[0010] Optionally, the three-lumen tube comprises a tubular body, and the suction tube, the water injection tube and the air injection tube are arranged in the tubular body.

[0011] Optionally, the main tube comprises a main tube body and a main tube head.

[0012] One end of the main tube body is connected to the three-lumen tube and communicates with the three-lumen tube.

[0013] The main tube head is connected to the other end of the main tube body away from the three-lumen tube, and the main tube head is provided with a through hole communicating with the main tube body; the main tube head and the through hole are used for extending into the patient's body; in the first communication state, the through hole is used for sucking out the liquid in the patient's body; in the second communication state, the through hole is used for sending water into the patient's body; and in the third communication state, the through hole is used for inputting gas into the patient's body.

[0014] Optionally, the through hole is a plurality of through holes arranged on the main tube head at intervals.

[0015] Optionally, the main tube head is in the shape of an arc.

[0016] Optionally, the main tube head is made of medical silicone material.

[0017] Optionally, the switching switch is rotatably connected between the three-lumen tube and the main tube, and rotation of the switching switch switches the main tube and the three-lumen tube between the first communication state, the second communication state and the third communication state.

[0018] Optionally, the switching switch has a switching channel.

[0019] In the first communication state, the switching channel communicates with the suction tube.

[0020] In the second communication state, the switching channel communicates with the water injection tube.

[0021] In the third communication state, the switching channel communicates with the air injection tube.

[0022] Optionally, the thoracoscope surgery multifunctional suction device further comprises a connector seat connected to the three-lumen tube and provided with a suction channel, a water injection channel and an air injection channel.

[0023] In the first communication state, the suction channel communicates with the suction tube.

[0024] In the second communication state, the water injection channel communicates with the water injection tube.

[0025] In the third communication state, the air injection channel communicates with the air injection tube.

[0026] Optionally, the joint base is further provided with a suction pipe joint, a water injection pipe joint and an inflation pipe joint;

[0027] The suction pipe joint is in communication with the suction channel, and the suction pipe joint is used to be connected with a suction device, so that in the first communication state, liquid in the patient's body is sucked out through the suction device;

[0028] The water injection pipe joint is in communication with the water injection channel, and the water injection pipe joint is used to be connected with a water injection device, so that in the second communication state, water is sent into the patient's body through the water injection device;

[0029] The inflation pipe joint is in communication with the inflation channel, and the inflation pipe joint is used to be connected with an inflation device, so that in the third communication state, gas is input into the patient's body through the inflation device.

[0030] In the embodiment of the application, the thoracoscope surgery multifunctional suction device comprises a three-lumen tube, a main pipe and a switching switch, the three-lumen tube comprises a suction pipe, a water injection pipe and an inflation pipe arranged side by side, the main pipe is connected to the three-lumen tube and is in communication with the three-lumen tube, and the switching switch is movably connected between the three-lumen tube and the main pipe, and the switching switch is used to switch the main pipe and the three-lumen tube between a first communication state, a second communication state and a third communication state, wherein the first communication state is that the main pipe is in communication with the suction pipe, the second communication state is that the main pipe is in communication with the water injection pipe, and the third communication state is that the main pipe is in communication with the inflation pipe. In this way, by arranging the main pipe, liquid in the patient's body is sucked out through the main pipe in communication with the suction pipe, water is sent into the patient's body through the main pipe in communication with the water injection pipe, and gas is sent into the patient's body through the main pipe in communication with the inflation pipe, so that when the thoracoscope surgery multifunctional suction device is used for surgery, only the main pipe needs to be inserted into the patient's body, so that the trauma of the surgery is small and the pain of the patient is reduced.

[0031] Additional aspects and advantages of the present application will be described in the following description and part of them will become apparent from the description or will be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0032] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0033] Figure 1 is a structure schematic view of a thoracoscope surgery multifunctional suction device provided by the embodiment of the application.

[0034] Reference signs: 1 - three cavity tube, 10 - suction tube, 11 - water injection tube, 12 - inflation tube, 14 - tubular body, 2 - main tube, 20 - main tube body, 21 - main tube head, 210 - through hole, 3 - switch, 30 - switch channel, 4 - joint seat, 40 - suction channel, 41 - water injection channel, 42 - inflation channel, 400 - suction tube joint, 410 - water injection tube joint, 420 - inflation tube joint. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and should not be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The thoracoscope surgery multifunctional suction device provided by the embodiment of the present application is described in detail below with reference to the drawings.

[0040] Referring to Figure 1 , a structure diagram of a thoracoscope surgery multifunctional suction device is shown. Specifically, the thoracoscope surgery multifunctional suction device can specifically include: a three-lumen tube 1, the three-lumen tube 1 including side-by-side arranged suction tube 10, water injection tube 11 and inflation tube 12, the suction tube 10 being used for sucking out liquid in a patient's body, the water injection tube 11 being used for sending water into the patient's body, and the inflation tube 12 being used for inputting gas into the patient's body; a main tube 2, the main tube 2 being connected to the three-lumen tube 1 and being in communication with the three-lumen tube 1; and a switching switch 3, the switching switch 3 being movably connected between the three-lumen tube 1 and the main tube 2, the switching switch 3 being used for switching the main tube 2 and the three-lumen tube 1 between a first communication state, a second communication state and a third communication state, wherein the first communication state is that the main tube 2 is in communication with the suction tube 10, the second communication state is that the main tube 2 is in communication with the water injection tube 11, and the third communication state is that the main tube 2 is in communication with the inflation tube 12.

[0041] Specifically, during the thoracoscope surgery, first, a hole is made at a specific surgery site of a patient, the main tube 1 is inserted into the hole, and the main tube 1 and the three-lumen tube are switched between the first communication state, the second communication state and the third communication state by controlling the switching switch 3, so that the thoracoscope surgery multifunctional suction device can be freely switched among the three functions of suction, water injection and inflation, thereby when bleeding occurs at a wound, the second communication state is switched to, water is injected to the wound, the first communication state is switched to, and the mixture of blood and water at the wound is thoroughly cleaned, and water is injected to the wound, so that the bleeding point can be conveniently found; when the wound is close to important nerves and blood vessels, the second communication state is switched to, water is injected to the wound, the third communication state is switched to, and gas is sprayed to blow away the water remaining on the nerves and blood vessels, so as to avoid repeated touching of the important nerves and blood vessels by the suction device and reduce intraoperative injury. When arterial bleeding splashes and blurs the lens of the thoracoscope during the surgery, the second communication state is switched to, water is directly injected to the lens, the third communication state is switched to, and gas is sprayed to blow away the remaining water droplets, so as to more conveniently clean the lens of the thoracoscope. When an ultrasonic knife or an electric hook is used to separate important nerves or blood vessels during the surgery, the second communication state or the third communication state can be switched to, water is injected or gas is sprayed to carry away a large amount of heat, so as to avoid thermal injury of the important nerves and blood vessels by the ultrasonic knife or the electric hook.

[0042] In the embodiment of the present application, the main pipe 2 is communicated with the three-cavity pipe 1, and in the surgical process, only the main pipe 2 needs to be inserted into the patient's body, so that the thoracoscope surgical multifunctional aspirator has the functions of suction, water injection and air injection at the same time, the volume of the main pipe 2 inserted into the patient's body is small, and the trauma of the thoracoscope surgical process is small, thereby reducing the pain of the patient.

[0043] As shown in Figure 1 Optionally, the three-cavity pipe 1 comprises a tubular body 14, and the suction pipe 10, the water injection pipe 11 and the air injection pipe 12 are arranged in the tubular body 14.

[0044] In actual application, by arranging the suction pipe 10, the water injection pipe 11 and the air injection pipe 12 in the tubular body 14 of the three-cavity pipe 2, the three pipes of the suction pipe 10, the water injection pipe 11 and the air injection pipe 12 are integrated in one three-cavity pipe 2, so that the structure of the thoracoscope surgical multifunctional aspirator is simpler.

[0045] Referring to Figure 1 Optionally, the main pipe 2 comprises a main pipe body 20 and a main pipe head 21, one end of the main pipe body 20 is connected to and communicated with the three-cavity pipe 1, and the main pipe head 21 is connected to the other end of the main pipe body 20 away from the three-cavity pipe 1, the main pipe head 21 is provided with a through hole 210, the through hole 210 is communicated with the main pipe body 20, the main pipe head 21 and the through hole 210 are used for being inserted into the patient's body, in the first communication state, the through hole 210 is used for sucking out the liquid in the patient's body, in the second communication state, the through hole 210 is used for sending water into the patient's body, and in the third communication state, the through hole 210 is used for inputting gas into the patient's body.

[0046] Specifically, the head of the main pipe body 20 is connected with the main pipe head 21, the main pipe head 21 is provided with the through hole 210, in the surgical process, the main pipe head 21 is inserted into the patient's body, in the first communication state, the blood and the effusion at the surgical site are sucked out through the through hole 210, in the second communication state, water injection cleaning or cooling is performed in the surgical process through the through hole 210, and in the third communication state, air injection cleaning or cooling is performed in the surgical process through the through hole 210.

[0047] Optionally, the through hole 210 is a plurality of through holes 210, and the plurality of through holes 210 are arranged on the main pipe head 21 at intervals.

[0048] For example, the through hole 210 can be two, three or four, and can be arranged on the main pipe head 21 at intervals along the radial direction or the axial direction of the main pipe head 21. The number and arrangement mode of the through hole 210 in the embodiment of the present application can be set according to actual needs, and the embodiment of the present application does not make specific limitation on this.

[0049] In practical application, by setting multiple through holes 210, in the first communication state, when one or several through holes 210 are blocked by soft tissue fragments generated during the operation, liquid can pass through other through holes into the main pipe 2, thereby improving the suction efficiency.

[0050] As shown in Figure 1 Optionally, the main pipe head 21 is in the shape of a circular arc.

[0051] In practical application, since the main pipe head 21 needs to be inserted into the patient's body and needs to be in direct contact with the surgical wound during the operation, the circular arc-shaped main pipe head 21 can avoid causing secondary trauma to human tissue during direct contact, further reducing the patient's pain.

[0052] Optionally, the material of the main pipe head 21 is medical silicone material.

[0053] In practical application, since the main pipe head 21 is made of medical silicone material, it can further avoid causing secondary trauma to the patient during the operation, further reducing the patient's pain.

[0054] Referring to Figure 1 Optionally, the switching switch 3 is rotatably connected between the three-lumen tube 1 and the main pipe 2, and the rotation of the switching switch 3 switches the main pipe 2 and the three-lumen tube 1 between the first communication state, the second communication state and the third communication state.

[0055] Specifically, the switching switch 3 is rotatably connected to the three-lumen tube 1, and by rotating the switching switch 3, the main pipe 2 and the three-lumen tube 1 can be switched between the first communication state, the second communication state and the third communication state. In practical application, since rotation switching is a relatively simple switching method, during the operation, medical staff only need to rotate the switching switch to conveniently switch the thoracoscope multifunctional suction device to the first communication state for suction, or to the second communication state for water injection, or to the third communication state for air injection, making the operation of medical staff more convenient.

[0056] Optionally, the switching switch 3 has a switching channel 30; in the first communication state, the switching channel 30 communicates with the suction pipe 10; in the second communication state, the switching channel 30 communicates with the water injection pipe 11; in the third communication state, the switching channel 30 communicates with the inflation pipe 12.

[0057] Specifically, the switching channel 30 is a straight hole structure. By rotating the switching switch 3, the switching channel 30 can be in communication with the suction tube 10 in the first communication state, or in communication with the water injection tube 11 in the second communication state, or in communication with the inflation tube 12 in the third communication state. In actual application, only one switching channel 30 needs to be provided to realize the switching of the three communication states, so that the structure of the switching switch 3 is simpler, and further, the structure of the thoracoscope surgery multifunctional suction device is simpler.

[0058] It should be noted that the drawings shown in the embodiments of the present application only show the state that the switching channel 30 is in communication with the suction tube 10, and in actual application, the person skilled in the art can also rotate the switching switch 3 to make the switching channel 30 in communication with the water injection tube 11 or make the switching channel 30 in communication with the inflation tube 12.

[0059] As shown in FIG. 1, Figure 1 Optionally, the thoracoscope surgery multifunctional suction device further comprises a joint seat 4 connected to the three-lumen tube 1 and provided with a suction channel 40, a water injection channel 41 and an inflation channel 42. In the first communication state, the suction channel 40 is in communication with the suction tube 10. In the second communication state, the water injection channel 41 is in communication with the water injection tube 11. In the third communication state, the inflation channel 42 is in communication with the inflation tube 12.

[0060] Specifically, the suction channel 40, the water injection channel 41 and the inflation channel 42 are arranged in the interior of the joint seat 4, and each channel is arranged separately. The suction channel 40, the water injection channel 41 and the inflation channel 42 can be various shapes such as trumpet-shaped through holes, cylindrical through holes, etc. The embodiments of the present application do not make specific limitations on the shape of each channel. In actual application, by arranging separate suction channel 40, water injection channel 41 and inflation channel 42, the channels can be prevented from being connected together during use.

[0061] As shown in FIG. 1, Figure 1 Optionally, the joint seat 4 is further provided with a suction tube joint 400, a water injection tube joint 410 and an inflation tube joint 420. The suction tube joint 400 is in communication with the suction channel 40, and the suction tube joint 400 is used to be connected with a suction device, so that in the first communication state, the liquid in the patient's body is sucked out through the suction device. The water injection tube joint 410 is in communication with the water injection channel 41, and the water injection tube joint 410 is used to be connected with a water injection device, so that in the second communication state, water is sent to the patient's body through the water injection device. The inflation tube joint 420 is in communication with the inflation channel 42, and the inflation tube joint 420 is used to be connected with an inflation device, so that in the third communication state, gas is input into the patient's body through the inflation device.

[0062] Specifically, the suction channel 40 is connected with the suction pipe joint 400 and the suction pipe 10, and the suction pipe joint 400 is connected with a suction device. In the first communication state, the sucked liquid enters the main pipe body 20 through the through hole 210 on the main pipe head 21, then enters the suction pipe 10 through the switching channel 30, and finally enters the suction device through the suction channel 40. The suction device can be a common negative pressure suction machine.

[0063] Specifically, the water injection channel 41 is connected with the water injection pipe joint 410 and the water injection pipe 11, and the water injection pipe joint 410 is connected with a water injection device. In the second communication state, water flows out of the water injection device, enters the water injection channel 41 through the water injection pipe joint 410, enters the water injection pipe 11, enters the main pipe body 20 through the switching channel 30, and finally enters the patient's body through the through hole 210 on the main pipe head 21. The water injection device can be a common negative pressure water injection device.

[0064] Specifically, the inflation channel 42 is connected with the inflation pipe joint 420 and the inflation pipe 12, and the inflation pipe joint 420 is connected with an inflation device. In the third communication state, gas is sprayed out of the inflation device, enters the inflation channel 42 through the inflation pipe joint 420, enters the inflation pipe 12, enters the main pipe body 20 through the switching channel 30, and finally is sprayed into the patient's body through the through hole 210 on the main pipe head 21. The water injection device can be a common negative pressure gas injection device.

[0065] In actual application, three joints are arranged on the joint seat 4, so that the corresponding joints of the suction pipe 10, the water injection pipe 11 and the inflation pipe 12 do not need to be arranged separately, and the structure of the thoracoscope surgery multifunctional suction device is more compact and simple.

[0066] In summary, the thoracoscope surgery multifunctional suction device provided by the embodiment has at least the following advantages:

[0067] In the embodiment of the present application, the thoracoscope multifunctional aspirator comprises a three-lumen tube 1, the three-lumen tube 1 comprising an aspirating tube 10, a water injection tube 11 and an air injection tube 12 arranged side by side; a main tube 2 connected to the three-lumen tube 1 and in communication with the three-lumen tube 1; and a switching switch 3 movably connected between the three-lumen tube 1 and the main tube 2, the switching switch 3 being used to switch the main tube 2 and the three-lumen tube 1 between a first communication state, a second communication state and a third communication state, wherein the first communication state is that the main tube 2 is in communication with the aspirating tube 10, the second communication state is that the main tube 2 is in communication with the water injection tube 11, and the third communication state is that the main tube 2 is in communication with the air injection tube 12. In this way, by arranging the main tube 2, the liquid in the patient's body is aspirated out through the communication between the main tube 2 and the aspirating tube 10, water is sent into the patient's body through the communication between the main tube 2 and the water injection tube 11, and air is sent into the patient's body through the communication between the main tube 2 and the air injection tube 12, so that the thoracoscope multifunctional aspirator only needs to extend the main tube 2 into the patient's body when performing surgery, so that the trauma of the surgery is smaller and the pain of the patient is reduced.

[0068] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0069] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A multifunctional suction device for thoracoscopic surgery, characterized in that, The multifunctional suction device for thoracoscopic surgery includes: The three-lumen tube includes a suction tube, a water injection tube, and an air inflation tube arranged in parallel. The suction tube is used to aspirate liquid from the patient's body, the water injection tube is used to deliver water into the patient's body, and the air inflation tube is used to inject gas into the patient's body. The main tube is connected to and communicates with the three-lumen tube; And a switching switch, which is movably connected between the three-lumen tube and the main tube, is used to switch the main tube and the three-lumen tube between a first connected state, a second connected state and a third connected state, wherein the first connected state is that the main tube is connected to the suction tube, the second connected state is that the main tube is connected to the water injection tube, and the third connected state is that the main tube is connected to the air inflation tube.

2. The multifunctional suction device for thoracoscopic surgery according to claim 1, characterized in that, The three-lumen tube includes a tubular body, and the suction tube, the water injection tube, and the air inflation tube are disposed within the tubular body.

3. The multifunctional suction device for thoracoscopic surgery according to claim 1, characterized in that, The supervisor includes the supervisor body and the supervisor header; One end of the main body is connected to and communicates with the three-lumen tube; The main tube head is connected to the other end of the main tube body away from the three-lumen tube. The main tube head is provided with a through hole, which communicates with the main tube body. The main tube head and the through hole are used to extend into the patient's body. In the first communication state, the through hole is used to draw out liquid from the patient's body. In the second communication state, the through hole is used to deliver water into the patient's body. In the third communication state, the through hole is used to introduce gas into the patient's body.

4. The multifunctional suction device for thoracoscopic surgery according to claim 3, characterized in that, There are multiple through holes, which are spaced apart on the main pipe head.

5. The multifunctional suction device for thoracoscopic surgery according to claim 3, characterized in that, The main head is arc-shaped.

6. The multifunctional suction device for thoracoscopic surgery according to claim 3, characterized in that, The main head is made of medical-grade silicone.

7. The multifunctional suction device for thoracoscopic surgery according to claim 1, characterized in that, The switching switch is rotatably connected between the three-chamber tube and the main tube, and the rotation of the switching switch causes the main tube and the three-chamber tube to switch between the first connected state, the second connected state and the third connected state.

8. The multifunctional suction device for thoracoscopic surgery according to claim 7, characterized in that, The switch has a switching channel; In the first connected state, the switching channel is connected to the suction tube; In the second connected state, the switching channel is connected to the water injection pipe; In the third connected state, the switching channel is connected to the inflation pipe.

9. The multifunctional suction device for thoracoscopic surgery according to claim 1, characterized in that, The multifunctional suction device for thoracoscopic surgery also includes a connector, which is connected to the three-lumen tube and is provided with a suction channel, a water injection channel and an air inflation channel; In the first connected state, the suction channel is connected to the suction tube; In the second connected state, the water injection channel is connected to the water injection pipe; In the third connected state, the inflation channel is connected to the inflation pipe.

10. The multifunctional suction device for thoracoscopic surgery according to claim 9, characterized in that, The connector seat is also provided with a suction pipe connector, a water injection pipe connector and an air inflation pipe connector. The suction tube connector is connected to the suction channel and is used to connect to the suction device so that, in the first connected state, the suction device can be used to draw out the fluid from the patient's body. The water injection pipe connector is connected to the water injection channel, and the water injection pipe connector is used to connect to the water injection device so that, in the second connected state, water is delivered into the patient's body through the water injection device. The inflation connector is connected to the inflation channel and is used to connect to the inflation device so that, in the third connected state, gas is introduced into the patient's body through the inflation device.

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