Smoke exhaust type flushing and suction catheter device

Abstract

The invention relates to a smoke discharge type flushing and suction catheter device which comprises a flushing and liquid suction gun and an external pipeline system, and the flushing and liquid suction gun comprises a gun body, a valve body, a flushing valve group and a liquid suction valve group; the valve body arranged in the gun body is provided with a flushing flow channel, a liquid suction flow channel, a flushing and suction flow channel, a flushing valve seat and a liquid suction valve seat; the flushing valve group and the liquid suction valve group are respectively arranged on the liquid suction valve seat and the upper liquid suction valve seat; when the flushing valve shaft and the liquid suction valve shaft are both in a free state or the flushing valve shaft and the liquid suction valve shaft are pressed at the same time, the flushing flow channel and the liquid suction flow channel on the valve body are closed; when the flushing valve shaft and the liquid suction valve shaft are respectively pressed, the flushing flow channel and the liquid suction flow channel on the valve body are respectively communicated and can be interlocked; the pipeline system comprises a flushing and sucking pipeline unit at the front part of the gun body, and a flushing pipeline unit, a leading-out pipeline unit and a smoke sucking pipeline unit at the rear part of the gun body. The device is reasonable in structure and convenient to operate, smoke can be treated in time while flushing, liquid suction and smoke suction are achieved, and the operation safety can be improved.

Description

Technical Field

[0001] The invention relates to a smoke exhaust type flushing and suction catheter device, belonging to the technical field of medical equipment. Background Art

[0002] With the continuous development of surgical methods, laparoscopic minimally invasive surgery has become popular among hospitals and patients due to its advantages such as less trauma and faster patient recovery. As a result, the number of surgeries is increasing. During laparoscopic surgery, an irrigation and suction device is required. Most irrigation and suction devices currently on the market have the functions of flushing physiological saline and sucking out waste fluids from the patient's body. With the widespread use of electrosurgical instruments, when the electrosurgical instruments come into contact with tissue, they achieve rapid dehydration, decomposition, evaporation, and blood coagulation, achieving the purpose of cutting and hemostasis. During electrocoagulation and electrosurgical cutting, smoke is often generated. The appearance of smoke not only affects the health of doctors and patients in the operating room, but also interferes with the doctor's observation field during surgery, affecting the accuracy of the operation.

[0003] For example, CN201822916U discloses an irrigation and suction device comprising a handle and an irrigation and suction tube. The tube is internally divided into two channels, one for irrigation and one for suction. These channels are connected to the irrigation and suction tubes, respectively, via flexible tubes. A flushing button and a suction button are located on each section of the flexible tube, respectively, at the front and rear of the handle. The handle's front end is provided with a streamlined groove. The flushing and suction buttons consist of a button cap, a bump, and a spring. The bump is located beneath the button cap, and a spring is located beneath the bump. The spring compresses and seals the hose. When the button cap is pressed, the bump no longer compresses the hose, leaving it unobstructed. When the button cap is released, the bump, acting as a spring, compresses and seals the hose again, controlling the irrigation and suction processes. CN219071527U discloses a rotatable elbow irrigation aspirator with a tissue separation function, comprising a housing, a control assembly, a tube assembly, and a rotating wheel. The control assembly is arranged inside the housing, the tube assembly is arranged at one end of the housing, and the rotating wheel is arranged outside the tube assembly. A handle is provided on one side of the housing, and an air outlet connector and a water inlet connector are respectively provided at the lower end of the handle. The control assembly includes a tee, an air outlet hose, a water inlet hose, an aspiration switch, a first return spring, an irrigation switch, and a second return spring. The tee is a rigid tee tubular structure, and one end of the tee is a common channel. The interior of the common channel is sequentially provided with a tube body slot and a rubber ring slot. The current irrigation aspirator has an irrigation button / switch and an aspiration button / switch that are mostly arranged on the inside at the same time. They are of a point-activated push-button type. Pressing the button turns on and releasing the button turns off. The advantages of this operation method are that it is easy to operate, conforms to the principles of ergonomics, and is less prone to fatigue when doctors frequently switch between operations. However, the flush and aspiration buttons are located very close together, making it easy for surgeons wearing gloves to mistakenly press both buttons simultaneously during surgery. This can cause saline and waste fluid to flow through the flush and aspiration lines, potentially impacting the surgical process. To address this issue, the flush and aspiration buttons / switch are positioned separately, one above the other. However, due to the lack of an interlocking feature, they can be pressed simultaneously while gripping the gun, causing fluid flow. Furthermore, the irrigation and aspiration pumps utilize flexible hoses for both inlet and outlet. These hoses are typically made of medical-grade PVC (polyvinyl chloride) or TPR (thermoplastic elastomer). Initially, a spring forces the flush and aspiration buttons / switch against their corresponding hoses. This pressure deforms the hoses, causing them to adhere together. During surgery, even when the buttons / switches are pressed, the hoses experience a delay in flow, impacting the surgical process. Furthermore, the existing flushing suction device sucks out the smoke and liquid simultaneously through the suction tube, but does not deal with the smoke in a timely manner, and still does not solve the problem that the smoke harms the health of patients and doctors in the operating room. Summary of the Invention

[0004] The purpose of the present invention is to provide a smoke exhaust type flushing and suction catheter device with a reasonable structure, easy operation, the ability to interlock the flushing pipeline and the suction pipeline, the ability to flush, suck liquid, and extract smoke, and the ability to promptly process the smoke, thereby improving operational safety.

[0005] The present invention is a technical solution to achieve the above-mentioned purpose: a smoke exhaust type flushing and suction catheter device, characterized by comprising a flushing and suction gun and an external piping system; The flushing and liquid-sucking gun comprises a gun body, a valve body, and a flushing valve group and a liquid-sucking valve group installed on the gun body and capable of opening and closing the flushing flow channel and the liquid-sucking flow channel; The gun body includes two connected shells, the valve body is installed in the gun body, the valve body is provided with a flushing flow channel, a suction flow channel and a flushing and suction flow channel at the upper part of the valve body communicating with the flushing flow channel and the end of the suction flow channel, the valve body is provided with a flushing valve seat and a suction valve seat that pass through the flushing flow channel and the suction flow channel, the flushing valve seat is provided with a flushing valve hole, and the suction valve seat is provided with a suction valve hole; The flushing valve group includes a flushing valve shaft and a flushing return spring. The flushing core shaft of the small diameter section of the flushing valve shaft is installed in the flushing valve hole, and the flushing button of the large diameter section is installed on the gun body and extends outward. The flushing core shaft is provided with a front channel, a middle flushing cut-off shaft section and a rear channel in sequence. The two ends of the flushing return spring sleeved on the flushing valve shaft are respectively pressed against the flushing button and the flushing valve seat; when the flushing valve shaft is in a free state, the flushing cut-off shaft section on the flushing core shaft blocks the flushing flow channel to cut off the flow, and the rear channel is connected to the liquid suction flow channel; when the flushing valve shaft is pressed and the flushing return spring is compressed, the front channel on the flushing core shaft is connected to the flushing flow channel, and the flushing cut-off shaft section blocks the liquid suction flow channel to cut off the flow; The liquid suction valve group includes a liquid suction valve shaft and a liquid suction return spring, the liquid suction core shaft of the small diameter section of the liquid suction valve shaft is installed in the liquid suction valve hole, the liquid suction button of the large diameter section is installed on the gun body and extends outward, the liquid suction core shaft is sequentially provided with a front liquid suction cutoff shaft section, an intermediate hole and a rear liquid suction cutoff shaft section, and the two ends of the liquid suction return spring sleeved on the liquid suction valve shaft are respectively pressed against the liquid suction button and the liquid suction valve seat; when the liquid suction valve shaft is in a free state, the intermediate hole on the liquid suction core shaft is communicated with the flushing flow channel, and the rear liquid suction cutoff shaft section blocks the liquid suction flow channel to cut off flow; when the liquid suction valve shaft is pressed and the liquid suction return spring is compressed, the intermediate hole on the liquid suction core shaft is communicated with the liquid suction flow channel, and the front liquid suction cutoff shaft section blocks the flushing flow channel to cut off flow; When the flushing valve shaft and the suction valve shaft are both in a free state or when the flushing valve shaft and the suction valve shaft are pressed at the same time, the flushing flow channel and the suction flow channel on the valve body are cut off; when the flushing valve shaft and the suction valve shaft are pressed separately, the flushing flow channel and the suction flow channel on the valve body are respectively connected and can be interlocked; The pipeline system includes a flushing and suction pipeline unit at the front of the gun body and a flushing pipeline unit, an outlet pipeline unit and a smoke suction pipeline unit at the rear of the gun body; The flushing and suction pipe unit includes a flushing and suction pipe and a flushing and suction pipe fixing wheel. The flushing and suction pipe is installed on the front of the gun body through the flushing and suction pipe fixing wheel. One end of the flushing and suction pipe is connected to the flushing and suction flow channel of the valve body, and the other end extends out of the flushing and suction pipe fixing wheel. The flushing pipeline unit includes a flushing hose and a needle head. One end of the flushing hose is connected to the flushing flow channel on the valve body, and the other end has a needle head. The needle head is used to connect to the cleaning liquid container. The outlet pipe unit includes a suction hose and a suction pipe joint. One end of the suction hose is connected to the suction channel on the valve body, and the other end is connected to the suction pipe joint. The suction pipe joint is used for connecting the negative pressure pipe. The smoke inhalation pipeline unit includes an inhalation pipe, an airflow regulator, a filter and a one-way valve. One end of the inhalation pipe is connected to the suction hose and the other end is connected to the Luer connector. The Luer connector is used to connect to the puncture device. The inhalation pipe is equipped with an airflow regulator for adjusting the exhaust volume, a filter for filtering the smoke, and a one-way valve to prevent smoke backflow.

[0006] The medical flushing and aspirating device of the present invention adopts a flushing and aspirating gun and an external piping system. A valve body structure is adopted in the flushing and aspirating gun, and the flushing flow channel and the aspirating flow channel on the valve body are controlled by the flushing valve group and the aspirating valve group respectively. In particular, when the flushing valve shaft and the aspirating valve shaft are in a free state or when the flushing valve shaft and the aspirating valve shaft are pressed at the same time, the flushing flow channel and the aspirating flow channel on the valve body are cut off, and when the flushing valve shaft and the aspirating valve shaft are pressed separately, the flushing flow channel and the aspirating flow channel on the valve body are respectively connected and can be interlocked, which completely solves the problem of the flushing tube and the aspirating pipeline being connected due to misoperation, causing the physiological saline used for flushing and the waste liquid sucked out to flow into each other. The present invention adopts a valve body structure and is installed in the gun body. Since the valve body is provided with a flushing flow channel and a suction flow channel, as well as a flushing valve seat and a suction valve seat communicated with the flushing flow channel and the suction flow channel, the flushing flow channel and the suction flow channel are controlled to be on and off by operating the axial movement of the flushing valve shaft and the suction valve shaft, it will not cause a hysteresis phenomenon of the pipeline on and off during use, and will not affect the surgical process. The present invention controls flushing, liquid suction, and smoke through a flushing and suction pipeline unit at the front of the gun body and a flushing pipeline unit, an outlet pipeline unit, and a smoke suction pipeline unit at the rear of the gun body. In particular, the smoke suction pipeline unit is installed on the suction pipe and is connected in sequence to an air flow regulator for adjusting the exhaust volume, a filter for filtering the smoke, and a one-way valve for preventing smoke backflow. The outlet end of the suction pipe is connected to the suction hose. Since the smoke does not pass through the liquid suction flow channel, the smoke exhaust pipeline is shortened. The air flow regulator controls the exhaust and timely discharges the smoke. Under the premise of maintaining clear intraoperative images and meeting the working pressure of the surgical site, harmful substances, small particles, and odors in the smoke are intercepted and adsorbed by the filter and then sucked out through the outlet pipeline unit, greatly improving the safety of the operating room. The present invention has a compact structure and has the functions of flushing, liquid suction, and smoke extraction. At the same time, it can timely treat the smoke, especially solving the problem of cross-talk between the physiological saline used for flushing and the waste liquid sucked out, greatly improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0008] Figure 1 It is a structural schematic diagram of the smoke exhaust type irrigation and suction catheter device of the present invention.

[0009] Figure 2 It is a structural schematic diagram of the flushing and liquid-suctioning gun of the present invention.

[0010] Figure 3 It is a schematic diagram of the exploded structure of the flushing and suction pipe, the flushing and suction conduit and the flushing and suction pipe fixing wheel of the present invention.

[0011] Figure 4 It is a structural schematic diagram of the flushing valve shaft of the present invention.

[0012] Figure 5It is a structural schematic diagram of the liquid suction valve shaft of the present invention.

[0013] Figure 6 It is a schematic diagram of the exploded structure of the flushing valve shaft, the liquid suction valve shaft and the gun body of the present invention.

[0014] Figure 7 It is a structural schematic diagram of the air flow regulator of the present invention.

[0015] Figure 8 It is a structural schematic diagram of the flushing liquid suction gun of the present invention when the flushing button is pressed.

[0016] Figure 9 It is a structural schematic diagram of the flushing and liquid-sucking gun of the present invention when the liquid-sucking button is pressed.

[0017] Figure 10 It is a structural schematic diagram of the flushing and liquid-sucking gun of the present invention when the flushing button and the liquid-sucking button are pressed simultaneously.

[0018] Among them: 1-flushing suction pipe, 1-1-small hole, 1-2-inner flange, 2-flushing suction pipe fixing wheel, 2-1-catheter sleeve, 2-2-connecting hole, 3-flushing suction gun, 3-1-gun body, 3-101-front baffle, 3-102-flushing button hole, 3-103-first rib, 3-104-suction button hole, 3-105-second rib, 3-106-rear slot, 3-2-flushing valve shaft, 3-21-flushing button, 3-211-flushing shoulder, 3-212-first guide groove, 3-2 2—flushing core shaft, 3-221—front channel, 3-222—flushing cutoff shaft section, 3-223—rear channel, 3-3—suction valve shaft, 3-31—suction button, 3-311—suction boss, 3-312—second guide groove, 3-32—suction core shaft, 3-321—front suction cutoff shaft section, 3-322—middle channel, 3-323—rear suction cutoff shaft section, 3-4—suction pipe joint, 3-5—flushing pipe joint, 3-6—front sealing gasket, 3-7—flushing and suction catheter, 3-71—threaded connection Connecting section, 3-72—limiting boss, 3-8—valve body sealing gasket, 3-9—valve body, 3-91—upper valve body, 3-92—lower valve body, 3-93—flushing flow channel, 3-94—suction flow channel, 3-95—flushing and suction flow channel, 3-96—flushing valve seat, 3-97—suction valve seat, 3-10—internal suction pipe, 3-11—flushing sealing ring, 3-12—flushing return spring, 3-13—suction return spring, 3-14—suction sealing ring, 3-15—internal flushing pipe, 4—pin head, 5—flushing hose , 6—suction pipe joint, 7—suction hose, 8—three-way pipe joint, 9—liquid suction hose, 10—suction tube, 11—Luer joint, 12—air flow regulator, 12-1—drainage housing, 12-11—suction joint, 12-12—guide tube, 12-13—exhaust joint, 12-2—air guide tube, 12-21—bump, 12-22—exhaust hole, 12-3—adjustment cover, 12-31—dial head, 12-4—adjustment sleeve, 12-41—air guide groove, 13—filter, 14—one-way valve. DETAILED DESCRIPTION

[0019] See Figure 1 As shown, a smoke exhaust type flushing and suction catheter device of the present invention includes a flushing and suction gun 3 and an external pipeline system.

[0020] See Figures 1 to 5 As shown, the flushing and suction gun 3 of the present invention includes a gun body 3-1, a valve body 3-9, and a flushing valve group and a suction valve group installed on the gun body 3-1 and capable of opening and closing the flushing channel 3-93 and the suction channel 3-94. The flushing valve group and the suction valve group are used to control the opening and closing of the flushing channel 3-93 and the suction channel 3-94 in the flushing and suction gun 3 and can achieve interlocking.

[0021] See Figures 1 to 5As shown, the gun body 3-1 of the present invention includes two connected shells, which are connected by fasteners after being spliced ​​together and are of a detachable structure. A space for accommodating a valve body 3-9 is provided in the gun body 3-1, and the valve body 3-9 is installed in the gun body 3-1. The valve body 3-9 is installed on the gun body 3-1 by fasteners. The valve body 3-9 can adopt an integrated structure or an assembled structure. A flushing flow channel 3-93, a liquid suction flow channel 3-94 and a flushing and suction flow channel 3-95 on the upper part of the valve body 3-9 that is connected to the end of the flushing flow channel 3-93 and the liquid suction flow channel 3-94 can be controlled by controlling the flushing valve shaft 3-2 and the liquid suction flow channel 3-93. The valve shaft 3-3, when the flushing channel 3-93 is turned on, the suction channel 3-94 is closed, and physiological saline is passed through the flushing channel 3-93 and the flushing and suction tube 1 to flush the tissue of the surgical site. The flushing channel 3-93 can also be controlled to be turned on while the suction channel 3-94 is closed, and waste liquid from the surgical site is sucked out through the flushing and suction tube 1 and the suction channel 3-94. The valve body 3-9 is provided with a flushing valve seat 3-96 and a suction valve seat 3-97 that pass through the flushing channel 3-93 and the suction channel 3-94. The flushing valve seat 3-96 is provided with a flushing valve hole, and the suction valve seat 3-97 is provided with a suction valve hole.

[0022] See Figure 2 、 4 As shown, the flushing valve assembly of the present invention includes a flushing valve shaft 3-2 and a flushing return spring 3-12. The flushing core shaft 3-22 of the small diameter section of the flushing valve shaft 3-2 is installed in the flushing valve hole, and the flushing button 3-21 of the large diameter section is installed on the gun body 3-1 and extends outside. The flushing core shaft 3-22 is sequentially provided with a front channel 3-321, a middle flushing intercepting shaft section 3-322, and a rear channel 3-223. The flushing return spring 3-12, which is mounted on the flushing valve shaft 3-2, has its two ends pressed against the flushing button 3-21 and the flushing valve seat, respectively. By pressing the flushing button 3-21 and overcoming the spring force of the flushing return spring 3-12, the flushing valve shaft 3-2 moves to control the flushing flow channel 3-93 and the suction flow channel 3-94 respectively. Figure 2 、 4 As shown, the flushing core shaft 3-22 of the flushing valve shaft 3-2 of the present invention is provided with flushing sealing grooves on both sides of the front channel 3-321 and the rear channel 3-223, and each flushing sealing ring 3-11 is installed in the flushing sealing groove accordingly. The flushing valve shaft 3-2 maintains the sealing of the flow channel during the axial movement. Figure 2 、 9 As shown, the flushing valve shaft 3-2 of the present invention is in a free state, and the flushing intercepting shaft section 3-322 on the flushing core shaft 3-22 blocks the flushing flow channel 3-93 and the intercepting and rear channel 3-223 is connected to the suction flow channel 3-94. Figure 8 、 10As shown, when the flushing valve shaft 3-2 is pressed and the flushing return spring 3-12 is compressed, the front channel 3-321 on the flushing core shaft 3-22 is connected to the flushing channel 3-93, and the flushing cut-off shaft section 3-322 blocks the suction channel 3-94 to cut off the flow.

[0023] See Figure 2 、 5 As shown, the liquid suction valve group of the present invention includes a liquid suction valve shaft 3-3 and a liquid suction reset spring 3-13. The liquid suction core shaft 3-32 of the small diameter section of the liquid suction valve shaft 3-3 is installed in the liquid suction valve hole, and the liquid suction button 3-31 of the large diameter section is installed on the gun body 3-1 and extends outside. The liquid suction core shaft 3-32 is sequentially provided with a front liquid suction cutoff shaft section 3-321, an intermediate channel 3-322, and a rear liquid suction cutoff shaft section 3-323. The two ends of the liquid suction reset spring 3-13 mounted on the liquid suction valve shaft 3-3 are respectively pressed against the liquid suction button 3-31 and the liquid suction valve seat 3-97. By pressing the liquid suction button 3-31 and overcoming the spring force of the liquid suction reset spring 3-13, the liquid suction valve shaft 3-3 moves to control the flushing channel 3-93 and the liquid suction channel 3-94 respectively. Figure 2 、 5 As shown, the liquid suction core shaft 3-32 of the present invention is provided with liquid suction sealing grooves on both sides of the middle channel 3-322 and the front side of the front liquid suction cut-off shaft section 3-321 and the rear side of the rear liquid suction cut-off shaft section 3-323. Each liquid suction sealing ring 3-14 is installed in each corresponding liquid suction sealing groove. Therefore, during the axial movement of the liquid suction valve shaft 3-3, both the flushing flow channel 3-93 and the liquid suction flow channel 3-94 have a good sealing effect. Figure 2 and Figure 8 As shown, the present invention, the liquid suction valve shaft 3-3 is in a free state, the middle channel 3-322 on the liquid suction core shaft 3-32 is connected to the flushing channel 3-93, and the rear liquid suction intercepting shaft section 3-323 blocks the liquid suction channel 3-94 to intercept the flow, see Figure 9 、 10 As shown, the suction valve shaft 3-3 is pressed and the suction return spring 3-13 is compressed, the middle channel 3-322 on the suction core shaft 3-32 is connected to the suction flow channel 3-94, and the front suction interception shaft section 3-321 blocks the flushing flow channel 3-93 to intercept.

[0024] See Figure 2 、 10 As shown, in the present invention, when the flushing valve shaft 3-2 and the liquid suction valve shaft 3-3 are both in a free state or when the flushing valve shaft 3-2 and the liquid suction valve shaft 3-3 are pressed at the same time, the flushing flow channel 3-93 and the liquid suction flow channel 3-94 on the valve body 3-9 are cut off. Therefore, even if there is an erroneous operation, when the flushing valve shaft 3-2 and the liquid suction valve shaft 3-3 are pressed at the same time, the flushing flow channel 3-93 and the liquid suction flow channel 3-94 can be kept disconnected. Figure 8 、 9As shown, the present invention makes the flushing flow channel 3-93 and the suction flow channel 3-94 on the valve body 3-9 be connected and interlocked respectively when the flushing valve shaft 3-2 and the suction valve shaft 3-3 are pressed respectively, and then the flushing flow channel 3-93 is connected while the suction flow channel 3-94 is not connected; and when the suction valve shaft 3-3 is pressed, the suction flow channel 3-94 is connected while the flushing flow channel 3-93 is not connected, and the flushing flow channel 3-93 and the suction flow channel 3-94 on the valve body 3-9 are controlled to be on and off and can be interlocked by cooperating with the flushing valve shaft 3-2 and the suction valve shaft 3-3.

[0025] See Figure 1 As shown, the pipeline system of the present invention includes a flushing and suction pipeline unit at the front of the gun body 3-1 and a flushing pipeline unit, an outlet pipeline unit and a smoke suction pipeline unit at the rear of the gun body 3-1.

[0026] See Figure 1 As shown, the flushing and suction pipeline unit of the present invention includes a flushing and suction pipe 1 and a flushing and suction pipe fixing wheel 2. The flushing and suction pipe 1 is installed on the front part of the gun body 3-1 through the flushing and suction pipe fixing wheel 2. One end of the flushing and suction pipe 1 is connected to the flushing and suction flow channel 3-95 of the valve body 3-9, and the other end extends out of the flushing and suction pipe fixing wheel 2. The flushing liquid is delivered to the surgical site through the flushing and suction pipe 1, and the waste liquid is sucked out.

[0027] See Figure 1 As shown, the flushing pipeline unit of the present invention includes a flushing hose 5 and a needle head 4. One end of the flushing hose 5 is connected to the flushing channel 3-93 on the valve body 3-9, and the other end has a needle head 4. The needle head 4 is used to connect to the cleaning liquid container. The needle head 4 is inserted into the cleaning liquid container, such as the interface of a saline bag or a saline bottle. The cleaning liquid passes through the flushing hose 5 and the flushing channel 3-93, the flushing and suction flow tube and the flushing and suction tube 1 to clean the surgical site.

[0028] See Figure 1 As shown, the lead-out pipeline unit of the present invention includes a suction hose 7 and a suction pipe joint 6. One end of the suction hose 7 is connected to the suction channel 3-94 on the valve body 3-9, and the other end is connected to the suction pipe joint 6. The suction pipe joint 6 is used for connecting a negative pressure pipe, which is connected to a negative pressure source through the negative pressure pipe to suck out waste liquid and smoke. The negative pressure source can be a negative pressure pump.

[0029] See Figure 1As shown, the smoke inhalation pipeline unit of the present invention includes an inhalation tube 10, an airflow regulator 12, a filter 13, and a one-way valve 14. One end of the inhalation tube 10 is connected to the suction hose 7, and the other end is connected to a Luer connector 11. The Luer connector 11 is used to connect to the trocar. Along the airflow direction, the inhalation tube 10 is connected to the airflow regulator 12 for regulating the exhaust volume, the filter 13 for filtering the smoke, and the one-way valve 14 for preventing smoke backflow. The present invention connects the Luer connector 11 to the trocar inserted into the patient's body. Smoke generated during surgery is drawn into the inhalation tube 10 through the Luer connector 11. The exhaust volume is first controlled by the airflow regulator 12, and then the filter 13 intercepts and absorbs harmful substances, fine particles, and odors in the smoke. The smoke is then discharged through the one-way valve 14 to the suction hose 7 and discharged from the suction tube connector 6. The smoke does not pass through the suction flow channel 3-94 in the valve body 3-9, shortening the smoke extraction distance and enabling timely smoke discharge, maintaining clear intraoperative images and the safety of personnel in the room.

[0030] See Figure 6 As shown, the gun body 3-1 of the present invention is provided with a flushing button hole 102 and a liquid suction button hole 3-104 on the inner side of the handle, and the gun body 3-1 is provided with a first convex rib 3-103 and a second convex rib 3-105 on the inner sides of the flushing button hole 102 and the liquid suction button hole 3-104 respectively. The flushing valve shaft 3-2 is provided with a flushing shoulder 3-211 on the inner side of the flushing button 3-21, and the first guide groove 3-212 on the flushing shoulder 3-211 matches the first convex rib 3-103 and can move axially. The flushing valve shaft 3-2 is guided by the correspondence between the first convex rib 3-103 and the first guide groove 3-212. When pressed and reset, the flushing valve shaft 3-2 can reliably move axially. Similarly, the suction valve shaft 3-3 is provided with a suction boss 3-311 on the inner side of the suction button 3-31. The second guide groove on the suction boss 3-311 matches the second rib 3-105 and can move axially. The guiding mechanism of the second rib 3-105 and the second guide groove 3-312 can effectively guide the flushing valve shaft 3-2. When pressed and reset, the suction valve shaft 3-3 can reliably move axially.

[0031] See Figure 1 、 3As shown, the front part of the gun body 3-1 of the present invention is provided with a front baffle 3-101 with a hole, and the flushing and suction conduit 3-7 arranged in the gun body 3-1 extends out of the head of the gun body 3-1. The front part of the flushing and suction conduit 3-7 is provided with a threaded connection section 3-71, and the rear part is connected and communicated with the flushing and suction flow channel 3-95 on the valve body 3-9. The limiting boss 3-72 on the flushing and suction conduit 3-7 is connected to the front baffle 3-101 on the gun body 3-1, which facilitates the installation of the flushing conduit 3-7 in the gun body 3-1 and its connection with the flushing and suction pipe 1 and the flushing and suction flow channel 3-95. The connection part of the flushing and suction conduit 3-7 and the valve body 3-9 is provided with a sealing ring, which seals one side of the flushing and suction conduit 3-7 with the valve body 3-9 and facilitates the connection with the flushing and suction pipe 1 at the other end. Figure 1 、 3 As shown, the flushing and suction tube fixing wheel 2 of the present invention includes a catheter sleeve 2-1 at the front and a connecting hole 2-2 at the rear. The front side of the flushing and suction tube 3-7 extends out of the gun body 3-1 and is connected to the thread in the connecting hole 2-2 of the flushing and suction tube fixing wheel 2. The inner flange 1-2 at the tail of the flushing and suction tube 1 is set in the connecting hole 2-2 of the flushing and suction tube fixing wheel 2 and is sealed with the end face of the flushing and suction tube 3-7 through the front sealing gasket 3-6. The flushing and suction tube 1 is connected to the flushing and suction tube 3-7 through the flushing and suction tube fixing wheel 2, and different models of flushing and suction tubes 1 are easily replaced. Figure 1 、 3 As shown, the flushing and suction tube 1 of the present invention is made of a stainless steel tube, and a plurality of small holes 1-1 are provided on both sides of the front portion of the flushing and suction tube 1 along the axial direction to ensure flushing and suction effects.

[0032] See Figure 2 As shown, the valve body 3-9 of the present invention includes an upper valve body 3-91 and a lower valve body 3-92 that are connected. The connecting part of the upper valve body 3-91 and the lower valve body 3-92 is sealed and connected by a concave-convex connecting surface. The connecting part of the upper valve body 3-91 is provided with a groove, and the connecting part of the lower valve body 3-92 has a protrusion. It can also be that the connecting part of the lower valve body 3-92 is provided with a groove, and the connecting part of the upper valve body 3-91 has a protrusion. The connecting surface of the upper valve body 3-91 and the lower valve body 3-92 is provided with a valve body sealing gasket 3-8, and the upper valve body 3-91 and the lower valve body 3-92 are connected by fasteners. The flushing flow channel and the suction flow channel of the upper valve body 3-91 are connected with the flushing flow channel and the suction flow channel of the lower valve body 3-92. The upper valve body 3-91 is provided with a flushing and suction flow channel 3-95 that communicates with the flushing flow channel and the suction flow channel, and the lower valve body 3-92 is provided with a flushing valve seat 3-96 and a suction valve seat 3-97.

[0033] See Figure 2 、 6As shown, the gun body 3-1 of the present invention is provided with two rear card slots 3-106 at the tail, and the flushing pipe joint 3-5 and the liquid suction pipe joint 3-4 are respectively clamped on the corresponding rear card slots 3-106, and are connected to the internal pipeline and the external pipeline through the flushing pipe joint 3-5 and the liquid suction pipe joint 3-4. The two ends of the internal flushing pipe 3-15 are respectively installed on the inner side of the flushing pipe joint 3-5 and the flushing flow channel 3-93 of the valve body 3-9, and the flushing hose 5 is installed on the outer side of the flushing pipe joint 3-5. The flushing hose 5, the internal flushing pipe 3-15, the flushing flow channel 3-93 on the valve body 3-9 and the flushing and suction flow channel 3-95, the flushing and suction catheter 3-7 and the flushing and suction pipe 1 form a flushing pipeline. The two ends of the internal suction pipe 3-10 are respectively installed on the inner side of the suction pipe joint 3-4 and the suction channel 3-94 of the valve body 3-9. The suction hose 9 is connected to the outer side of the suction pipe joint 3-4. The suction hose 9 is connected to the suction hose 7 and the suction pipe 10 through the three-way pipe joint 8. Therefore, the flushing and suction pipe 1, the flushing and suction catheter 3-7, the flushing and suction channel 3-95 and the suction channel 3-94 on the valve body 3-9, the internal suction pipe 3-10, the suction hose 9 and the suction hose 7 form a suction pipeline to discharge the waste liquid.

[0034] See Figure 7 As shown, the air flow regulator 12 of the present invention includes a drainage housing 12-1, an adjustment cover 12-3, an air guide pipe 12-12 and an adjustment sleeve 12-4. The drainage housing 12-1 of the present invention is buckled and connected by fasteners. The drainage housing 12-1 is provided with an air intake connector 12-11 and an air exhaust connector 12-13 at both ends. One side of the air guide pipe 12-12 is sealed and installed in the air intake cavity of the drainage housing 12-1 and communicates with the air intake connector 12-11, and the other side is sealed and installed on the adjustment sleeve 12-4. The air guide pipe 12-12 can move axially. The air guide pipe 12-12 has a sealing end face at one end of the exhaust cavity and has radial exhaust holes 12-22 on the pipe wall close to the sealing end face. The sleeve 12-4 is provided with an axial air guide groove 12-41 on the hole wall on one side of the exhaust chamber. The air guide groove 12-41 is connected to the exhaust joint 12-13. The air guide groove 12-41 is a groove with a gradually expanding exhaust cross-section along the airflow path. The adjustment cover 12-3 installed on the drainage housing 12-1 is connected to the air guide tube 12-12 and drives the air guide tube 12-12 to move axially. The inner dial head 12-31 on the adjustment cover is connected to the protrusion 12-21 in the middle of the air guide tube 12-12. The axial movement of the air guide tube is controlled by turning the adjustment cover. Figure 7As shown, the exhaust hole 12-22 on the air guide pipe 12-12 of the present invention is arranged at the air guide groove 12-41 of the adjustment sleeve 12-4, and when the exhaust hole 12-22 moves outward from the inside of the air guide groove 12-41, the exhaust volume gradually changes from small to large, and the flow rate of the discharged smoke can be steplessly adjusted. When the exhaust hole 12-22 of the air guide pipe 12-12 moves to exceed the air guide groove 12-41 and connects with the hole wall of the adjustment sleeve 12-4, it is in the exhaust closed state. Therefore, the movement of the air guide pipe 12-12 in the adjustment sleeve 12-4 is controlled by operating the adjustment cover 12-3, so that the exhaust hole 12-22 corresponds to the exhaust cross-sectional position of the air guide groove 12-41 to control the exhaust volume. The air guide groove 12-41 of the present invention adopts an exhaust cross-section with a changing cross-section, so that the exhaust flow rate can be steplessly adjusted to achieve precise control. When smoke is generated during the operation, the negative pressure pump is turned on, and the smoke entering the suction pipe 10 is first discharged after the exhaust volume is controlled by the airflow regulator 12, and then filtered by the filter 13 and passed into the suction hose 9, and the smoke is discharged in time.

Claims

1. A smoke exhaust type irrigation and suction catheter device, characterized in that: It includes a flushing suction gun (3) and an external piping system; The flushing and liquid-sucking gun (3) comprises a gun body (3-1), a valve body (3-9), and a flushing valve group and a liquid-sucking valve group mounted on the gun body (3-1) and capable of opening and closing the flushing flow channel (3-93) and the liquid-sucking flow channel (3-94); The gun body (3-1) includes two connected shells, the valve body (3-9) is installed in the gun body (3-1), the valve body (3-9) is provided with a flushing flow channel (3-93), a liquid suction flow channel (3-94), and a flushing and suction flow channel (3-95) at the upper part of the valve body (3-9) communicating with the flushing flow channel (3-93) and the end of the liquid suction flow channel (3-94), the valve body (3-9) is provided with a flushing valve seat (3-96) and a liquid suction valve seat (3-97) that pass through the flushing flow channel (3-93) and the liquid suction flow channel (3-94), the flushing valve seat (3-96) is provided with a flushing valve hole, and the liquid suction valve seat (3-97) is provided with a liquid suction valve hole; The flushing valve group includes a flushing valve shaft (3-2) and a flushing return spring (3-12). The flushing core shaft (3-22) of the small diameter section of the flushing valve shaft (3-2) is installed in the flushing valve hole, and the flushing button (3-21) of the large diameter section is installed on the gun body (3-1) and extends outward. The flushing core shaft (3-22) is provided with a front channel (3-321), a middle flushing intercepting shaft section (3-322) and a rear channel (3-223) in sequence. The flushing return spring (3-12) mounted on the flushing valve shaft (3-2) has two ends respectively pressed against the flushing button (3-21). ) and the flushing valve seat (3-96); when the flushing valve shaft (3-2) is in a free state, the flushing cutoff shaft section (3-322) on the flushing core shaft (3-22) blocks the flushing flow channel (3-93) to cut off the flow, and the rear hole (3-223) is connected to the suction flow channel (3-94); the flushing valve shaft (3-2) is pressed and the flushing return spring (3-12) is compressed, so that the front hole (3-321) on the flushing core shaft (3-22) is connected to the flushing flow channel (3-93), and the flushing cutoff shaft section (3-322) blocks the suction flow channel (3-94) to cut off the flow; The liquid suction valve group includes a liquid suction valve shaft (3-3) and a liquid suction reset spring (3-13). The liquid suction core shaft (3-32) of the small diameter section of the liquid suction valve shaft (3-3) is installed in the liquid suction valve hole, and the liquid suction button (3-31) of the large diameter section is installed on the gun body (3-1) and extends outward. The liquid suction core shaft (3-32) is provided with a front liquid suction cutoff shaft section (3-321), an intermediate channel (3-322) and a rear liquid suction cutoff shaft section (3-323) in sequence. The two ends of the liquid suction reset spring (3-13) sleeved on the liquid suction valve shaft (3-3) are respectively pressed against the liquid suction button (3 -31) and the liquid suction valve seat (3-97); when the liquid suction valve shaft (3-3) is in a free state, the middle hole (3-322) on the liquid suction core shaft (3-32) is communicated with the flushing flow channel (3-93), and the rear liquid suction cut-off shaft section (3-323) blocks the liquid suction flow channel (3-94) to cut off the flow; the liquid suction valve shaft (3-3) is pressed and the liquid suction return spring (3-13) is compressed, so that the middle hole (3-322) on the liquid suction core shaft (3-32) is communicated with the liquid suction flow channel (3-94), and the front liquid suction cut-off shaft section (3-321) blocks the flushing flow channel (3-93) to cut off the flow; When the flushing valve shaft (3-2) and the liquid suction valve shaft (3-3) are both in a free state or when the flushing valve shaft (3-2) and the liquid suction valve shaft (3-3) are pressed simultaneously, the flushing flow channel (3-93) and the liquid suction flow channel (3-94) on the valve body (3-9) are cut off; when the flushing valve shaft (3-2) and the liquid suction valve shaft (3-3) are pressed separately, the flushing flow channel (3-93) and the liquid suction flow channel (3-94) on the valve body (3-9) are respectively connected and can be interlocked; The pipeline system comprises a flushing and suction pipeline unit at the front of the gun body (3-1), and a flushing pipeline unit, an outlet pipeline unit and a smoke suction pipeline unit at the rear of the gun body (3-1); The flushing and suction pipeline unit comprises a flushing and suction pipe (1) and a flushing and suction pipe fixing wheel (2); the flushing and suction pipe (1) is mounted on the front of the gun body (3-1) via the flushing and suction pipe fixing wheel (2); one end of the flushing and suction pipe (1) is connected to the flushing and suction flow channel (3-95) of the valve body (3-9), and the other end extends out of the flushing and suction pipe fixing wheel (2); The flushing pipeline unit includes a flushing hose (5) and a needle head (4). One end of the flushing hose (5) is connected to the flushing channel (3-93) on the valve body (3-9), and the other end has a needle head (4). The needle head (4) is used to connect to the cleaning liquid container. The outlet pipe unit comprises a suction hose (7) and a suction pipe joint (6); one end of the suction hose (7) is connected to the suction flow channel (3-94) on the valve body (3-9), and the other end is connected to the suction pipe joint (6); the suction pipe joint is used for connecting a negative pressure pipe; The smoke inhalation pipeline unit comprises an inhalation tube (10), an airflow regulator (12), a filter (13) and a one-way valve (14). One end of the inhalation tube (10) is connected to the suction hose (7), and the other end is connected to the Luer connector (11). The Luer connector (11) is used to connect to the puncture device. The inhalation tube (10) is equipped with an airflow regulator (12) for adjusting the exhaust volume, a filter (13) for filtering the smoke, and a one-way valve (14) for preventing the smoke from flowing back.

2. A smoke exhaust type irrigation and suction catheter device according to claim 1, characterized in that: The gun body (3-1) is provided with a flushing button hole (102) and a liquid suction button hole (3-104) on the inner side of the handle, and the gun body (3-1) is provided with a first convex rib (3-103) and a second convex rib (3-105) on the inner sides of the flushing button hole (102) and the liquid suction button hole (3-104), respectively; the flushing valve shaft (3-2) is provided with a flushing shoulder (3-211) on the inner side of the flushing button (3-21); the first guide groove (3-212) on the flushing shoulder (3-211) matches the first convex rib (3-103) and can move axially; the liquid suction valve shaft (3-3) is provided with a liquid suction shoulder (3-311) on the inner side of the liquid suction button (3-31); the second guide groove (3-312) on the liquid suction shoulder (3-311) matches the second convex rib (3-105) and can move axially.

3. The smoke exhaust type irrigation and suction catheter device according to claim 1, characterized in that: The front portion of the gun body (3-1) is provided with a front baffle (3-101) with a hole. A flushing and suction conduit (3-7) disposed in the gun body (3-1) extends out of the head of the gun body (3-1). The front portion of the flushing and suction conduit (3-7) is provided with a threaded connection section (3-71). The rear portion is connected to the flushing and suction flow channel (3-95) on the valve body (3-9). A limiting boss (3-72) on the flushing and suction conduit (3-7) is connected to the front baffle (3-101) on the gun body (3-1). The flushing and suction tube fixing wheel (2) comprises a catheter sleeve (2-1) at the front and a connecting hole (2-2) at the rear. The front side of the flushing and suction tube (3-7) extends out of the gun body (3-1) and is connected to the thread in the connecting hole (2-2) of the flushing and suction tube fixing wheel (2). The inner flange (1-2) at the tail of the flushing and suction tube (1) is arranged in the connecting hole (2-2) of the flushing and suction tube fixing wheel (2) and is sealed and connected to the end face of the flushing and suction tube (3-7) through the front sealing gasket (3-6).

4. A smoke exhaust type irrigation and suction catheter device according to claim 1 or 3, characterized in that: The front portion of the flushing and suction tube (1) is also provided with a plurality of small holes (1-1) along both sides of the axial direction.

5. The smoke exhaust type irrigation and suction catheter device according to claim 1 or 3, characterized in that: The valve body (3-9) includes an upper valve body (3-91) and a lower valve body (3-92) connected to each other. The connection between the upper valve body (3-91) and the lower valve body (3-92) is sealed by a concave-convex connection surface. The flushing flow channel and the suction flow channel of the upper valve body (3-91) are connected to the flushing flow channel and the suction flow channel of the lower valve body (3-92). The upper valve body (3-91) is provided with a flushing and suction flow channel (3-95) that is in communication with the flushing flow channel (3-93) and the suction flow channel. The lower valve body (3-92) is provided with a flushing valve seat (3-96) and a suction valve seat (3-97).

6. The smoke exhaust type irrigation and suction catheter device according to claim 1, characterized in that: The flushing core shaft (3-22) is provided with flushing sealing grooves on both sides of the front channel (3-321) and on both sides of the rear channel (3-223), and each flushing sealing ring (3-11) is correspondingly installed at the flushing sealing groove.

7. The smoke exhaust type irrigation and suction catheter device according to claim 1, characterized in that: The liquid suction core shaft (3-32) is provided with liquid suction sealing grooves on both sides of the middle channel (3-322) and on the front side of the front liquid suction intercepting shaft section (3-321) and the rear side of the rear liquid suction intercepting shaft section (3-323), and each liquid suction sealing ring (3-14) is installed in each corresponding liquid suction sealing groove.

8. The smoke exhaust type irrigation and suction catheter device according to claim 1, characterized in that: The tail of the gun body (3-1) is provided with two rear card slots (3-106), the flushing pipe joint (3-5) and the liquid suction pipe joint (3-4) are respectively clamped on the corresponding rear card slots (3-106), the two ends of the internal flushing pipe (3-15) are respectively installed on the inner side of the flushing pipe joint (3-5) and the flushing flow channel (3-93) of the valve body (3-9), and the flushing hose (5) is installed on the outer side of the flushing pipe joint (3-5); the two ends of the internal liquid suction pipe (3-10) are respectively installed on the inner side of the liquid suction pipe joint (3-4) and the liquid suction flow channel (3-94) of the valve body (3-9), the liquid suction hose (9) is connected to the outer side of the liquid suction pipe joint (3-4), and the liquid suction hose (9) is connected to the suction hose (7) and the suction pipe (10) through the three-way pipe joint 8.

9. The smoke exhaust type irrigation and suction catheter device according to claim 1, characterized in that: The air flow regulator (12) comprises a drainage housing (12-1), an adjustment cover (12-3), an air guide pipe (12-12) and an adjustment sleeve (12-4); one side of the air guide pipe (12-12) is sealed and installed at the air intake cavity of the drainage housing (12-1) and communicates with the air intake joint (12-11), and the other side is sealed and installed on the adjustment sleeve (12-4); the air guide pipe (12-12) is located at one end of the exhaust cavity and has a sealing end face and is provided with a radial exhaust hole (12-22) on the pipe wall close to the sealing end face; the adjustment sleeve (12-4) is located on the hole wall of one side of the exhaust cavity and is provided with an axial air guide groove (12-41); the air guide groove (12-41) is connected to the exhaust joint (12-13 ) are connected, the air guide groove (12-41) is a groove with a gradually expanding exhaust cross-section on the air flow path, the adjustment cover (12-3) installed on the guide housing (12-1) is connected to the air guide pipe (12-12) and drives the air guide pipe (12-12) to move axially, the exhaust hole (12-22) on the air guide pipe (12-12) is set at the air guide groove (12-41) of the adjustment sleeve (12-4), and when the exhaust hole (12-22) moves from the inside of the air guide groove (12-41) to the outside, the exhaust volume gradually increases from small to large; when the exhaust hole (12-22) of the air guide pipe (12-12) moves beyond the air guide groove (12-41) and connects with the hole wall of the adjustment sleeve (12-4), it is in the exhaust closed state.

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