CN114344669A - Irrigation suction tube and surgical device - Google Patents

Abstract

The invention discloses an irrigation and suction tube and a surgical device. The irrigation and suction tube comprises a tube body and a tube joint assembly. The tube joint assembly is provided with a first joint, a second joint and a third joint, and a drainage channel is formed in the tube. , a liquid delivery channel and a gas delivery channel, the drainage channel runs through both ends of the pipe body, the proximal end of the pipe body is provided with or integrally formed with a pipe joint assembly, and the first joint is communicated with the drainage channel, and the second joint is connected with the liquid transport The passage is communicated, the third joint is communicated with the gas conveying passage, the nozzle structure of the pipe body is provided with a first smoke exhaust structure communicated with the exhausting passage, and the pipe body is provided with a liquid spray hole and an air injection hole at a position close to the nozzle structure. The liquid injection hole communicates with the liquid delivery channel, and the injection hole communicates with the gas delivery channel. It can not only discharge smoke, but also clean the endoscope lens, ensure the safety and continuity of the operation, and protect the health of patients and medical staff.

Description

Irrigation suction tubes and surgical devices

technical field

The present invention relates to the field of medical instruments, in particular to an irrigation suction tube. Furthermore, it also relates to a surgical device.

Background technique

With the rapid development of medical technology, people not only require surgery to cure the disease, but also hope to reduce the damage caused by the surgery itself to the patient, and achieve minimally non-invasive surgery, such as laparoscopic surgery, which requires a puncture on the patient's abdominal wall or even the back. Establish surgical access to reduce trauma to the patient. Laparoscopic surgery is a highly instrument-dependent procedure, in which the application of energy instruments such as monopolar and bipolar energy instruments is indispensable in operations such as surgical cutting and hemostasis.

At present, most energy devices use thermal energy or high-speed low-frequency vibration mechanical energy to cause protein denaturation. During this process, a large amount of smoke will be generated. Problems caused by smoke: 1. Affecting the safety of surgery: a large amount of smoke obstructs the surgical field of vision, blurs the operating area, and affects the safety of surgical operations; The operation can only be continued after the smoke has dissipated and the surgical field of vision is clear; 3. Potential harm to the health of patients undergoing surgery, doctors and nurses involved in the operation: surgical smoke contains a variety of harmful chemical components (organic or inorganic compounds), even Carcinogens, some scholars have found at least 4 clear carcinogens in surgical smoke: 1,3-butadiene, hydrogen cyanide, acetylene, organic benzene, smoke can be absorbed by the patient's abdominal and pelvic lining and organ surface serosa, Peritoneal absorption, some studies have found that benzene and toluene are significantly increased in the urine of laparoscopic surgery patients, which is not conducive to postoperative recovery, and even has potential harm to the health of patients; 4. Harmful to the health of surgeons: surgical smoke In addition to the above-mentioned harmful or carcinogenic substances, it can also produce strong odor and infectious biological particles. Some studies have reported that the smoke generated by 1g of human tissue treated by electrosurgical treatment is equivalent to the human body inhaling 6 unfiltered cigarettes. The amount of harmful substances in the smoke produced by one operation is equivalent to the harmful smoke produced by 27 to 30 cigarettes. 77% of surgical smoke particles are less than 1.1um, with an average diameter of only 0.07um, and also contain some ultrafine particles, with an average diameter of 10nm to 1um. Although surgical masks are tightly protected, particles less than 5um can be directly inhaled through the mask. lung. In addition, harmful substances (styrene, teratogenic agents, etc.) can directly enter the body through the eyes and other parts, causing damage to the human body. Also, in laparoscopic techniques, the lens of the laparoscope is often contaminated with peritoneal or other bodily fluids, blood, aerosol fat, tissue particles, smoke, debris, or condensate that can interfere with the physician's field of view (via an external monitor).

Therefore, how to effectively discharge or eliminate the smoke generated by the use of energy instruments in surgery, quickly clean the lens of the endoscope, and ensure the safety and continuity of the surgery are technical problems to be solved in the field of surgery-related research.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a flushing suction tube, which can not only discharge smoke, but also clean the lens of the endoscope, ensure the safety and continuity of the operation, and ensure the patient and the medical care of the surgery. health of personnel.

A further technical problem to be solved by the present invention is to provide a surgical device, which can automatically start smoke exhaust and energy equipment synchronously, exhaust smoke in time, ensure uninterrupted completion of surgery, and ensure environmental safety in the operating room.

In order to solve the above technical problems, the present invention provides an irrigation and suction tube, which includes a tube body and a tube joint assembly, the tube joint assembly is provided with a first joint, a second joint and a third joint, and a row is formed in the tube. A suction channel, a liquid delivery channel and a gas delivery channel, the suction channel penetrates through both ends of the pipe body, the proximal end of the pipe body is provided with or integrally formed with the pipe joint assembly, and the first The joint communicates with the exhaust channel, the second joint communicates with the liquid delivery channel, the third joint communicates with the gas delivery channel, and the nozzle structure of the pipe body is provided with the exhaust channel. A liquid injection hole and an air injection hole are arranged on the pipe body near the nozzle structure, the liquid injection hole is communicated with the liquid conveying channel, and the air injection hole is communicated with the gas conveying channel.

Optionally, an instrument inlet and outlet channel is formed in the pipe joint assembly, and an end cover is installed at one end of the pipe joint assembly away from the pipe body, and the end cover is provided with a through hole for passing the surgical instrument.

Further, a first gasket and a second gasket are arranged between the end cap and the pipe joint assembly.

Optionally, the first sealing gasket and the second sealing gasket are integrally formed between the end cover and the pipe joint assembly.

Specifically, the first sealing gasket includes a cylinder body and a sealing edge provided along the outer peripheral surface of the cylinder body, and the cylinder body port is provided with a multi-lobed sealing structure.

Specifically, the second sealing gasket is provided with a through hole for passing through the surgical instrument.

Optionally, a control member is installed on the first joint, the second joint and the third joint.

Optionally, the nozzle structure of the pipe body is an outer cone structure, the inner contour of the outer cone structure is a conical surface whose cross-sectional circumference gradually increases from the distal side to the proximal side, and the distal port is provided with Chamfer.

Optionally, the first smoke exhaust structure is an opening communicated with the extraction channel.

Optionally, the pipe body is provided with a second smoke exhaust structure communicated with the exhaust channel.

Optionally, the liquid injection holes and/or the injection holes are inclined through holes, and the through holes are single or multiple, and the injection angles of the through holes are different.

Optionally, the side wall of the pipe body is provided with a diversion groove located between the liquid injection hole and the air injection hole, and the diversion groove is a diversion ridge

Specifically, the pipe body is provided with a partition, and the partition is connected with the inner wall of the pipe to form the exhaust channel, the liquid transport channel and the gas transport channel, and the liquid transport channel and the The gas delivery channels are arranged adjacently or separately.

Optionally, the side wall of the pipe body is provided with a liquid spray mark for indicating the position of the liquid spray hole and a gas spray mark for indicating the position of the spray hole.

Optionally, a scale mark is provided on the side wall of the pipe body in an area close to the pipe joint assembly.

The present invention also provides a surgical device, comprising the irrigation and suction tube according to any one of the above technical solutions and a surgical smoke evacuator connected to the first joint.

Through the above-mentioned technical scheme, the beneficial effects of the present invention are as follows:

In the present invention, a drainage channel, a liquid transport channel and a gas transport channel are arranged in the tube body. In minimally invasive surgery, the energy instrument can pass through the drainage channel for operations such as surgical cutting and hemostasis. The mouth is provided with a first smoke exhaust structure that communicates with the exhaust channel, and the exhaust channel is connected to the first joint on the pipe joint assembly. When smoke is generated during the operation, because the first smoke exhaust structure is close to the pipe mouth of the pipe body, the first smoke exhaust structure is close to the pipe mouth of the pipe body. A smoke exhaust structure is close to the working end of the energy device, and the smoke can be sucked in time through the first smoke exhaust structure and discharged through the first joint to ensure the safety of the human body. Moreover, the tube body is also provided with a liquid jet hole and an air jet hole. In minimally invasive surgery, the energy instrument is usually used in conjunction with the endoscope. , During the operation, the endoscope lens is cleaned to ensure the operation field of view, so that the operation can be carried out continuously, and the operation time is saved.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the assembly schematic diagram of the irrigation suction tube of the specific embodiment of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of the irrigation suction tube of the specific embodiment of the present invention;

3 is a partial schematic view of a pipe body according to a specific embodiment of the present invention;

Fig. 4 is the sectional schematic diagram along the A-A direction in Fig. 3;

5 is one of the schematic cross-sectional views of the pipe body according to the specific embodiment of the present invention;

6 is the second schematic cross-sectional view of the pipe body according to the specific embodiment of the present invention;

7 is a schematic three-dimensional structure diagram of a second sealing gasket according to a specific embodiment of the present invention;

Fig. 8 is the sectional schematic diagram along the B-B direction in Fig. 7;

9 is a schematic three-dimensional structure diagram of a first sealing gasket according to a specific embodiment of the present invention;

10 is a schematic structural diagram of a surgical device according to a specific embodiment of the present invention;

11 is a schematic structural diagram of a pipe joint assembly according to a specific embodiment of the present invention;

12 is a schematic structural diagram of an example of a nozzle structure of a pipe body according to a specific embodiment of the present invention;

Figure 13 is a schematic cross-sectional view along the C-C direction in Figure 12;

14 is a schematic structural diagram of another embodiment of the nozzle structure of the pipe body according to the specific embodiment of the present invention;

Fig. 15 is a schematic structural diagram of a specific embodiment of the present invention showing a porous and multi-angle arrangement of the liquid jet holes and the jet holes;

FIG. 16 is a schematic structural diagram of a diversion groove according to a specific embodiment of the present invention.

Description of reference numerals

1 tube body 11 exhaust channel

12 Liquid delivery channel 13 Gas delivery channel

14 First smoke exhaust structure 15 Liquid injection hole

16 jet holes 17 second smoke exhaust structure

18 Conical surface 19 Chamfer

2 Pipe joint assembly 21 First joint

22 Second connector 23 Third connector

3 End cap 4 First gasket

41 barrel 42 sealing edge

43 Multi-lobe sealing structure 5 Gaskets

6Second gasket 7Energy device

81 exhaust switch 82 spray switch

83 jet switch 9 diversion ridge

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the term "installation", "arrangement" or "connection" should be understood in a broad sense, for example, the term "connection" may be a fixed connection, or It can be a detachable connection or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or an interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the terms "first", "second" and "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated, therefore, limited to The features of "first", "second", "third" may expressly or implicitly include one or more of said features.

In the present invention, unless stated to the contrary, directional words such as "inner and outer" are used to define the inner and outer of the corresponding part, and the terms "proximal" and "distal" refer to clinical The distance between the doctor and the various parts of the surgical instrument when manipulating the surgical instrument. "Proximal" refers to the part close to the clinician, "distal" refers to the part away from the clinician, for example, the tube joint assembly 2 is located on the proximal side, and "axial" refers to the arrangement direction of the irrigation suction tube provided by the present invention Defined, specifically in the drawings provided by the present invention, “axial” refers to the front-rear direction of the pipe body 1 . The orientation words used are based on the orientation or positional relationship shown in the drawings, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention; Orientation terms of the present invention should be understood in conjunction with the actual installation state.

As shown in FIG. 1 to FIG. 9 , the irrigation and suction tube according to the basic embodiment of the present invention includes a tube body 1 and a tube joint assembly 2 . The tube joint assembly 2 is provided with a first joint 21 , a second joint 22 and a third joint 23 , the pipe body 1 is formed with a drainage channel 11, a liquid transport channel 12 and a gas transport channel 13, the drainage channel 11 runs through both ends of the pipe body 1, the pipe joint assembly 2 is sleeved on the proximal end of the pipe body 1, the pipe The joint assembly 2 and the pipe body 1 can be a separate structure or an integrated structure, and the first joint 21 is communicated with the exhaust channel 11, the second joint 22 is communicated with the liquid delivery channel 12, and the third joint 23 is communicated with the gas delivery channel 13 is connected, the nozzle structure of the pipe body 1 is provided with a first smoke exhaust structure 14 that communicates with the exhaust channel 11, and the pipe body 1 is provided with a liquid spray hole 15 and an air injection hole 16 at the position close to the nozzle structure. The liquid hole 15 communicates with the liquid delivery channel 12 , and the air injection hole 16 communicates with the gas delivery channel 13 .

In minimally invasive surgery, referring to FIG. 10 , an energy instrument 7 commonly used in minimally invasive surgery passes through the drainage channel 11 and extends into the abdominal cavity to be operated on. The first smoke exhaust structure 14 is arranged at the nozzle structure position of the pipe body 1, close to the working end of the energy instrument 7, that is, close to the source of smoke generation, so that the smoke generated during the operation can be discharged from the body at the moment of generation; the energy instrument 7 Usually used in conjunction with an endoscope, the tube body 1 is also provided with a liquid injection hole 15 and an air injection hole 16. The liquid injection hole 15 is used to spray liquid outward. Generally, physiological saline is selected, and the temperature is generally 37-39 °C. , when the lens of the endoscope is contaminated by peritoneal or other body fluids, blood, aerosol fat, tissue particles, smoke, debris or condensate, the second connector 22 is connected with the cleaning fluid supply device, and the endoscope is directed to the endoscope through the fluid spray hole 15 The lens of the endoscope is sprayed with physiological saline to clean the lens of the endoscope; at the same time, the third joint 23 is connected to the gas supply device, and is sprayed to the lens of the endoscope through the air injection hole 16. The attached liquid is blown dry to provide a clear view for the surgery. However, in actual use, the liquid delivery channel 12 can also be used to deliver gas, that is, the liquid ejection holes 15 are used to eject gas; correspondingly, the gas delivery channel 13 can also be used to deliver gas and liquid, that is, the ejection holes 16 are used to eject gas. Liquid; that is, one of the liquid delivery channel 12 and the gas delivery channel 13 can be used to deliver gas, and the other can be used to deliver liquid, which also belongs to the protection scope of the present invention. In addition, the suction channel 11 can be used for exhausting smoke, and can also be used for sucking out the cleaning liquid for flushing the endoscope lens, the cleaning liquid for other purposes, or the body's own liquid, and expelling it from the body.

Wherein, the liquid delivery channel 12 and the gas delivery channel 13 may be straight channels along the axial direction, or may be curved channels, such as arranged on the inner wall of the pipe body 1 in the form of a spiral.

Specifically, the pipe body 1 is provided with a partition, and the partition is connected with the inner wall of the pipe body 1 to form an exhaust channel 11, a liquid delivery channel 12 and a gas delivery channel 13. The partition can be the structure shown in FIG. The channel 12 is adjacent to the gas delivery channel 13, and can also be structurally deformed. For example, the horizontal straight plate above the partition can be a curved plate, and the vertical plate below the partition can be a curved plate; or, the partition can be a curved plate. It is also possible to separate the space in the pipe body 1 into the structure shown in FIG. 6 , so that the liquid delivery channel 12 and the gas delivery channel 13 are arranged separately; The space is divided into an extraction channel 11 , a liquid delivery channel 12 and a gas delivery channel 13 . In order not to affect the smoke exhaust effect of the exhaust channel 11 and the work of the energy device, the distal ends of the liquid delivery channel 12 and the gas delivery channel 13 are blocked by the inner wall of the tube body 1, that is, the orifice structure of the tube body 1 is only connected with the exhaust tube. The pumping channel 11 is connected. In addition, the liquid delivery channel 12 and the gas delivery channel 13 can also be designed in other ways. For example, the thickness of the wall of the tube body 1 is relatively large, so that the liquid delivery channel 12 and the gas delivery channel 13 are arranged in the tube wall of the tube body 1 . .

Among them, the first joint 21, the second joint 22 and the third joint 23 can adopt a tower-shaped anti-loosening joint, and the tower-shaped anti-loosening joint has a tapered anti-loosening step structure, so that the first joint 21 can be connected to the surgical smoke exhaust through a hose. The surgical smoke exhauster can use a negative pressure pump or a fan to provide smoke exhaust power to exhaust the smoke, so that the second joint 22 is connected to the cleaning solution supply device through a hose, and the cleaning solution supply device can include a water pump and a physiological saline storage container. , so that the third joint 23 is connected to the gas supply device through a hose, and the gas supply device can include a pneumatic pump and a carbon dioxide storage container, etc., or the first joint 21, the second joint 22 and the third joint 23 can also adopt other connection forms , such as thread structure, etc.

Further, the first joint 21 , the second joint 22 and the third joint 23 may all be provided with control elements to control the opening and closing of the first joint 21 , the second joint 22 and the third joint 23 . Specifically, referring to FIG. 11 , an exhaust switch 81 is set on the first joint 21 to control the opening and closing of the first joint 21 , and a liquid spray switch 82 is set on the second joint 22 to control the opening and closing of the second joint 22 . For opening and closing, a jet switch 82 is provided on the third joint 23 to control the opening and closing of the third joint 23 . In addition, the first connector 21 can be a three-way valve, one port is connected to the exhausting channel 11 , the other port is connected to a surgical smoke extractor, which is used to discharge the smoke generated during surgery, and the other port is connected to a suction device, which is used to extract Cleaning fluids produced when cleaning endoscope lenses, cleaning fluids for other purposes, or body fluids.

In a specific embodiment, the first smoke exhaust structure 14 may be an opening. Referring to FIG. 12 , the opening may be a notch formed by the proximal depression of the nozzle structure of the tube body 1 , or, referring to FIG. 14 , the opening may be Other structures, such as round holes or rectangular holes, etc. In addition, referring to FIG. 13 , the nozzle structure of the pipe body 1 is an outer cone structure, and the outer cone structure refers to the structure in which the outer contour as shown in FIG. 14 is a conical surface that gradually increases from the distal side to the proximal side. The mouth structure can reduce the shielding of the head of the surgical instrument, facilitate the observation of the endoscope, and the insertion of the trocar is smoother. Among them, the inner contour of the outer cone structure has a conical surface 18 whose cross-sectional circumference gradually increases from the distal side to the proximal side, so as to facilitate the smooth insertion of surgical instruments; the distal port of the outer cone structure is provided with a chamfer 19, which facilitates the smooth insertion of surgical instruments. quit.

In addition, a second smoke exhaust structure 17 can also be provided on the side wall of the pipe body 1, and the second smoke exhaust structure 17 is communicated with the exhaust channel 11, which can increase the area of smoke exhaust. Specifically, the second smoke exhaust structure 17 is a hole structure, such as a round hole, a rectangular hole, etc. The diameter of the liquid injection hole 15 is smaller than that of the second smoke exhaust structure 17 , and the diameter of the injection hole 16 is also smaller than that of the second smoke exhaust structure 17 The hole diameter of the liquid injection hole 15 and the hole diameter of the injection hole 16 may be the same or different.

Further, the second smoke exhaust structure 17 is arranged close to the nozzle structure of the pipe body 1, for example, it is arranged along the circumference of the outer peripheral surface of the pipe body 1, or is arranged axially along the outer circumference of the pipe body 1. The arrangement position is also close to the nozzle structure of the pipe body 1, and can be arranged in a matrix.

In order to facilitate the operation, a liquid injection mark can be set near the arrangement position of the liquid injection hole 15 and a gas injection mark can be set near the arrangement position of the injection hole 16 to indicate the positions of the liquid injection hole 15 and the injection hole 16. In minimally invasive surgery, it is convenient to The surgeon quickly finds the liquid jet hole 15 and the jet hole 16 to clean the lens of the endoscope. A scale mark can also be provided on the outer surface of the proximal end of the tube body 1, that is, the area close to the tube connector assembly 2, to facilitate prompting the surgeon to insert the depth of the irrigation suction tube.

In order to wash the lens of the endoscope better, the liquid injection hole 15 can be designed as an inclined through hole, that is, there is an acute angle between the axis of the liquid injection hole 15 and the axis of the pipe body 1, for example, the liquid injection hole 15 is designed In order to incline toward the proximal side, the liquid ejection holes 15 are inclined to eject physiological saline from the distal side to the proximal side, or the liquid ejection holes 15 can also be designed to be inclined in other directions. Similarly, the air injection hole 16 can also be designed as an inclined through hole, which is convenient for injecting carbon dioxide gas obliquely from the distal side to the proximal side. Since the liquid ejection hole 15 and/or the air ejection hole 16 is inclined toward the proximal side, in actual operation, the lens of the endoscope can be cleaned better. The through hole can be single or multiple, such as a plum-shaped arrangement. Referring to FIG. 15 , the angles of these through holes can be different, so that the coverage of the cleaning area is larger, wherein the double-dot chain line indicates the direction of the inclination angle of the through holes. Of course, the liquid injection holes 15 and the injection holes 16 may also be designed not to be inclined.

Further, referring to FIG. 16 , a guide groove 9 is provided on the side wall of the pipe body 1, and the guide groove 9 is arranged between the liquid injection hole 15 and the air injection hole 16. The guide groove 9 can also be a guide groove 9. The flow ridge, the guide ridge refers to the protruding structure. After the liquid is sprayed, residual liquid after the liquid spray may appear on the air injection hole 16, so that the residual liquid will be sprayed to the lens surface by the gas during the air injection. The guide grooves guide the liquid away, away from the jet holes, and the guide ridges block the flow of liquid to the jet holes.

In some specific embodiments, end caps 3 are installed at the ends of the pipe joint assembly 2, and the end caps 3 and the pipe body 1 are respectively located at two ends of the pipe joint assembly 2; The exhaust and extraction channels 11 in the body 1 communicate with each other, and a through hole is arranged in the center of the end cover 3, and the surgical instruments can pass through the instrument inlet and outlet channels in the pipe joint assembly 2 and the exhaust and extraction channels in the pipe body 1 in turn through the through hole in the center of the end cover 3. 11 Protrudes from the tube body 1 orifice structure, such as the energy instrument 7, to perform corresponding surgical operations.

Further, referring to FIG. 1 , a first gasket 4 and a second gasket 6 are provided between the end cover 3 and the pipe joint assembly 2 . The first gasket 4 and the second gasket 6 Seal between cover 3 and fitting assembly 2. Alternatively, in a preferred case, the first sealing gasket 4 and the second sealing gasket 6 may be integrally formed. Of course, the installation sequence of the first gasket 4 and the second gasket 6 between the pipe joint assembly 2 and the end cover 3 can be as shown in FIG. 1 , or can be designed as the pipe joint assembly 2, the second gasket 6, The installation sequence of the first sealing gasket 4 and the end cap 3 . Furthermore, a gasket 5 may also be provided, for example, between the first sealing gasket 4 and the second sealing gasket 6 , and the gasket 5 may be a hard material, so as to support the first sealing gasket 4 and the second sealing gasket 6 in a fixed manner.

9, the first gasket 4 includes a cylinder body 41 and a sealing edge 42. The sealing edge 42 can be an annular structure as shown in FIG. The extension edge extended from the body 41, or other structures that can achieve sealing with the inner wall of the pipe joint assembly 2; the sealing edge 42 is arranged along the outer peripheral surface of the cylinder body 41; The sealing structure 43 can be a two-lobed structure as shown in FIG. 9, or other multi-lobed structures, and can generally be prepared from medical silica gel, rubber or other elastic materials. The valve structures can be closely fitted to each other to achieve a sealing effect. Referring to FIGS. 7 and 8 , the second sealing gasket 6 can be a stepped shaft structure, the distal end of which is convex outward, and the proximal end is a stepped hole concave inward, which is axially on the outer peripheral surface of the cylinder. The extension edge is arranged to be able to seal with the inner wall of the pipe joint assembly 2, and through holes are arranged axially through its front and rear, which is convenient for the passage of medical devices such as the energy device 7, and can closely fit with the outer surface of the energy device and other medical devices, To achieve a sealing effect, or the second sealing gasket 6 may be other structures capable of achieving sealing. That is to say, when no surgical instruments such as the energy instrument 7 or a puncture needle are inserted, the multi-lobed structures of the first sealing gasket 4 are fitted with each other to achieve a sealing effect. When the surgical instruments such as the energy instrument 7 are inserted, the second sealing gasket 6 plays a sealing role.

In order to better understand the technical solutions of the present invention, the preferred embodiments are described below with reference to relatively comprehensive preferred technical features.

As shown in FIG. 1 to FIG. 9 , the present invention provides an irrigation and suction tube, which includes a tube body 1, a tube joint assembly 2 and an end cover 3; the tube body 1 is provided with a T-shaped partition plate, and the T-shaped partition plate and the The inner wall of the tube body 1 is connected to divide the space in the tube body 1 into a drainage channel 11, a liquid delivery channel 12 and a gas delivery channel 13. The distal end of the liquid delivery channel 12 and the distal end of the gas delivery channel 13 are connected to the inner wall. Connected to form a closed structure, the exhaust and extraction channel 11 is communicated with the nozzle structure of the pipe body 1, and the nozzle structure of the pipe body 1 is provided with a first smoke exhaust structure 14, and the position of the pipe body 1 close to the nozzle structure is provided with a spray Liquid hole 15 and air injection hole 16, the liquid injection hole 15 is communicated with the liquid conveying channel 12, the air injection hole 16 is communicated with the gas conveying channel 13, the liquid injection hole 15 is inclined to the proximal side; the pipe body 1 is also provided with a second smoke exhaust Structure 17 , the second smoke exhaust structure 17 communicates with the extraction channel 11 . One end of the pipe joint assembly 2 is sealed and sleeved on the pipe body 1. The pipe joint assembly 2 is provided with a first joint 21, a second joint 22 and a third joint 23. The first joint 21 communicates with the exhaust channel 11, and the second joint The joint 22 is in communication with the liquid delivery channel 12, and the third joint 23 is in communication with the gas delivery channel 13; the other end of the pipe joint assembly 2 is installed with an end cover 3, and a first gasket is installed between the pipe joint assembly 2 and the end cover 3 4. Gasket 5 and second gasket 6.

Referring to FIG. 10 , when the surgical device of the present invention is used in minimally invasive surgery, the first connector 21 is connected to the surgical smoke extractor, the second connector 22 is connected to the cleaning fluid supply device, and the third connector 23 is connected to the gas supply device Connection; the energy instrument 7 extends to the outside of the tube body 1 through the end cap 3, the pipe joint assembly 2 and the drainage channel 11 in the tube body 1 in turn, and is aligned with the surgical position to perform operations such as cutting and hemostasis, and as the operation progresses Smoke will be generated. Since the first smoke exhaust structure 14 is located at the nozzle structure position of the pipe body 1 and is close to the source of smoke generation, the generated smoke can be discharged in time at the moment of generation. Wherein, the energy apparatus 7 is connected to the energy generator, and a sensor, such as a Hall sensor, is usually provided on the power input line of the energy generator to monitor the current, voltage or power supplied to the energy apparatus 7, and the energy apparatus 7 will be monitored. The starting signal is transmitted to the controller. According to the starting signal, the controller controls the negative pressure pump or fan in the surgical smoke exhauster to start synchronously, so as to realize the automatic synchronization start of smoke exhaust and energy equipment 7, and automatically and timely exhaust smoke to the outside of the patient for filtration. Purification and other treatments ensure the uninterrupted completion of the operation and the environmental safety of the operating room; the energy instruments 7 can freely enter and exit the instrument channel to realize the conversion of different surgical instruments, and smoke can still be exhausted when the instruments are replaced. Moreover, when used in conjunction with an endoscope, the liquid injection hole 15 can spray physiological saline to the lens of the endoscope to quickly clean the lens of the endoscope, and the injection hole 16 can spray carbon dioxide gas to the lens of the endoscope to clean the endoscope lens. The liquid attached to the endoscope lens is blown dry, providing a clear field of view without removing the instruments, ensuring the unobstructed operation of the operation and saving the operation time.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that each specific technical feature described in the above-mentioned specific implementation manner may be combined in any suitable manner under the circumstance that there is no contradiction. In order to avoid unnecessary repetition, the present invention will not describe various possible combinations.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims (16)

1. An irrigation suction tube, characterized in that it comprises a tube body (1) and a pipe joint assembly (2), the pipe joint assembly (2) being provided with a first joint (21) and a second joint (22) and a third joint (23), an exhaust channel (11), a liquid transport channel (12) and a gas transport channel (13) are formed in the pipe body (1), and the exhaust channel (11) runs through the Both ends of the pipe body (1), the proximal end of the pipe body (1) is provided with or integrally formed with the pipe joint assembly (2), and the first joint (21) is connected to the drainage channel (11) communication, the second joint (22) communicates with the liquid delivery channel (12), the third joint (23) communicates with the gas delivery channel (13), and the pipe body (1) The nozzle structure is provided with a first smoke exhaust structure (14) communicating with the exhaust channel (11), and the pipe body (1) is provided with a liquid spray hole (15) at a position close to the nozzle structure. and a jet hole (16), the liquid jet hole (15) communicates with the liquid delivery channel (12), and the jet hole (16) communicates with the gas delivery channel (13). 2 . The irrigation and suction tube according to claim 1 , characterized in that, an instrument inlet and outlet channel is formed in the pipe joint assembly ( 2 ), and the pipe joint assembly ( 2 ) is away from the pipe body ( 1 ). 3 . An end cover (3) is installed at one end, and the end cover (3) is provided with a through hole for piercing the surgical instrument. 3. The irrigation suction tube according to claim 2, characterized in that a first gasket (4) and a second gasket ( 6). 4. The irrigation and suction tube according to claim 2, characterized in that, the first sealing gasket (4) and the integrally formed first gasket (4) and The second gasket (6). 5. The irrigation and suction tube according to claim 3, wherein the first gasket (4) comprises a cylindrical body (41) and a sealing edge (42) provided along the outer peripheral surface of the cylindrical body (41), so The port of the cylinder body (41) is provided with a multi-lobed sealing structure (43). 6 . The irrigation and suction tube according to claim 3 , characterized in that, the second sealing gasket ( 6 ) is provided with a through hole for passing through a surgical instrument. 7 . 7. The irrigation and suction tube according to any one of claims 1 to 6, characterized in that, the first joint (21), the second joint (22) and the third joint (23) are all installed with a control pieces. 8. The irrigation and suction tube according to any one of claims 1 to 6, characterized in that the orifice structure of the tube body (1) is an outer cone structure, and the inner contour of the outer cone structure is a self-extinguishing structure. A conical surface (18) with an increasing perimeter of the lateral proximal cross-section, and the distal port of which is provided with a chamfer (19). 9. The irrigation and suction tube according to any one of claims 1 to 6, characterized in that, the first smoke exhaust structure (14) is an opening that communicates with the extraction channel (11). 10. The irrigation and suction tube according to any one of claims 1 to 6, characterized in that, the tube body (1) is provided with a second smoke exhaust structure ( 17). 11. The irrigation suction tube according to any one of claims 1 to 6, characterized in that, the liquid injection hole (15) and/or the air injection hole (16) are inclined through holes, and the through holes The holes are single or multiple, and the injection angles of the through holes are different. 12. The irrigation suction tube according to any one of claims 1 to 6, characterized in that, the side wall of the tube body (1) is provided with the liquid injection hole (15) and the air injection hole ( 16) between the guide grooves (9), the guide grooves (9) are guide ridges. 13. The irrigation and suction tube according to any one of claims 1 to 6, characterized in that, a partition member is provided in the tube body (1), and the partition member is connected to the inner wall of the tube body (1) The exhaust channel (11), the liquid delivery channel (12) and the gas delivery channel (13) are formed, and the liquid delivery channel (12) is arranged adjacent to or separated from the gas delivery channel (13) . 14. The irrigation suction tube according to any one of claims 1 to 6, characterized in that, the side wall of the tube body (1) is provided with a liquid spray mark for indicating the position of the liquid spray hole (15) and A gas injection mark used to indicate the position of the injection hole (16) with the first joint (21). 15. The irrigation and suction tube according to any one of claims 1 to 6, characterized in that, a scale mark is provided on the side wall of the tube body (1) in an area close to the tube joint assembly (2). 16. A surgical device, characterized by comprising the irrigation suction tube according to any one of claims 1 to 15 and a surgical smoke extractor connected to the first connector (21).

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