Washing aspirator for endoscope

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a washing aspirator for an endoscope, which is mainly used in laparoscopic surgeries, carries out washing through a peristaltic washing device of a main machine or carries out aspiration through a negative pressure aspiration interface of the main machine. The flushing flow can be adjusted in three gears of the flushing mode, and the suction pressure can be adjusted in two gears of the suction mode; a main machine of the flushing aspirator for the endoscope is provided with a touch screen man-machine interaction system interface, a negative pressure aspiration interface, a system switch, a heat dissipation window, a negative pressure aspiration gas outlet, a power input port, a protection grounding pole, a heat dissipation hole, a power switch and a peristaltic flushing device, wherein the touch screen man-machine interaction system interface is used for displaying various settings and real-time states. The utility model solves the problem that like products on the market can only be flushed by a peristaltic flushing device independently and have no suction function, or air possibly enters the body cavity of a patient due to the fact that flushing and suction are carried out completely by vacuum negative pressure.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an endoscopic irrigation and suction device. Background Technology

[0002] Laparoscopic surgery is already very common in the industry, mainly used in thoracic and abdominal surgery, urology and gynecology and other related departments. The related supporting equipment is also relatively complete. However, the speed of equipment technology updates varies in different sub-sectors, and the clinical needs for equipment functions vary.

[0003] Currently, the commonly used fluid irrigation and aspiration methods in laparoscopic surgery include a pneumatic irrigation and aspiration pump. This involves a positive pressure pump that pressurizes air into a saline bottle, increasing the pressure and forcing the saline solution into the abdominal cavity via an irrigation aspirator. The aspirator, combined with a negative pressure vacuum pump, then draws the irrigation fluid into a waste bottle. However, this technology is relatively outdated, with complex endotracheal and tubing connections. The irrigation and aspiration pressure cannot be monitored or adjusted according to surgical needs. In particular, the positive pressure pump delivers pressurized gas rapidly and at a high flow rate, requiring a large amount of continuous irrigation fluid during surgery. A 500ml saline bottle quickly becomes empty, necessitating frequent interruptions of the irrigation function to replace the bottle. This places a heavy workload on the nurses and can disrupt the continuity of the surgical procedure.

[0004] Another method combines fixed-bag irrigation with negative pressure aspiration. This involves suspending a saline bag at a certain height using gravity pressure. The irrigation fluid is injected into the abdominal cavity via an aspiration device, and then suctioned into a waste bottle using the same device and negative pressure. This method offers relatively controlled irrigation pressure, and if a larger saline bag is used, frequent bag changes are unnecessary. Furthermore, this method uses an independent negative pressure aspiration device or a central negative pressure aspiration system, allowing for controllable suction. However, when using this method, if a higher pressure irrigation fluid is needed temporarily, the nurse below the table must raise and lower the saline bag to different heights, making adjustments to the irrigation status less rapid and timely, and the operation is relatively complex. Utility Model Content

[0005] To address the problems of existing technologies that only allow for irrigation using a peristaltic irrigation device without suction, or that rely solely on vacuum suction for both irrigation and suction, potentially leading to air entering the patient's body cavity, this invention provides an endoscopic irrigation and suction device. This device allows for seamless switching between irrigation and suction functions during laparoscopic surgery, utilizing three preset irrigation settings and two preset suction settings to meet the needs of the procedure. The irrigation function uses the peristaltic rollers of the peristaltic irrigation device to infuse and irrigate the cavity with fluid; the suction function uses a vacuum pump suction tube connected to the negative pressure suction port to remove blood clots, contaminated fluid, and smoke from the abdominal cavity, providing a clear surgical field.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An endoscopic irrigation and aspiration device is used for irrigation or aspiration during laparoscopic surgery. The device includes a main unit, a power cord, an irrigation catheter-A, an irrigation sensor, an irrigation catheter-B, a vacuum pump aspiration catheter, a suction catheter, a waste liquid bottle, irrigation and aspiration surgical instruments, and an infusion bag. The endoscopic irrigation and aspiration device is equipped with a peristaltic irrigation mechanism, a touchscreen human-machine interface for displaying various settings and real-time status on the main unit, a negative pressure aspiration interface, a system switch, a heat dissipation window, a negative pressure aspiration gas outlet, a power input port, a protective grounding post, a power switch, and the peristaltic irrigation device. The peristaltic irrigation device includes a peristaltic wheel and an irrigation fixing bracket. The irrigation sensor includes a diaphragm sensor module, a catheter, a water inlet, and a water outlet.

[0008] An endoscope irrigation and aspiration device is provided. The power cord of the endoscope irrigation and aspiration device is connected to the power input port of the main unit, and the power cord is connected to 220 volts. When the power switch of the main unit is pressed upward, the main unit is powered on. When the system switch of the main unit is pressed inward, a touchable window appears on the touch screen human-computer interaction system interface of the main unit.

[0009] An endoscopic irrigation and aspiration device is provided. The main unit of the endoscopic irrigation and aspiration device has a touch screen human-machine interface that includes irrigation function options and aspiration function options. The irrigation function options include three preset irrigation flow rates: low (1000 ml / min), medium (1400 ml / min), and high (1800 ml / min). The aspiration function options are accessed via the VAC button on the main unit's touch screen human-machine interface. Since the initial aspiration preset is 0 kPa, the aspiration pressure preset options of this endoscopic irrigation and aspiration device include two levels (30 kPa and 60 kPa).

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) Multiple sets of rinsing or suction parameter selection: The rinsing flow preset of the endoscope rinsing suction device has three different gear options, namely: low (1000ml / min), medium (1400ml / min) and high (1800ml / min); The suction pressure preset of the endoscope rinsing suction device also has two different gear options, namely: 30kPa and 60kPa. According to the surgeon's needs for irrigation flow and suction pressure, the nurses off the stage can quickly and effectively adjust various preset working parameters to continuously provide a clear surgical field of view during the operation; (2) Peristaltic irrigation function: the peristaltic wheel of the peristaltic irrigation device rotates the catheter, without the need for a positive pressure air pump to pressurize the irrigation by compressing external gas, and without the need for gravity pressurization. During the operation, saline or glucose infusion bags are injected into the patient's body through a fully enclosed pipeline for irrigation, avoiding the possibility of contamination of the infusion bag liquid caused by external pressure factors; (3) The preset values ​​and actual values ​​of irrigation flow and suction pressure can be displayed through the touch screen human-computer interaction system interface of the endoscope irrigation and suction device, which is convenient for medical staff to observe and operate in a timely manner. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of the host unit of this utility model in Embodiment 1;

[0012] Figure 2 This is a schematic diagram of the front panel of the host unit of this utility model in Embodiment 1;

[0013] Figure 3 This is a schematic diagram of the rear panel of the host unit of this utility model in Embodiment 1;

[0014] Figure 4 This is a schematic diagram of the peristaltic flushing device of the present invention in Example 1;

[0015] Figure 5 This is a schematic diagram of the flushing sensing device of the present invention in Embodiment 1;

[0016] Figure 6 This is a schematic diagram of the cooperation structure between the main unit front panel and the flushing sensor of this utility model in Embodiment 1;

[0017] Figure 7 This is a schematic diagram of the rinsing function structure of the endoscopic rinsing aspirator of this utility model in Example 2;

[0018] Figure 8 This is a schematic diagram of the suction function structure of the endoscopic irrigation suction device of this utility model in Example 3;

[0019] Figure 9 This is a schematic diagram of the waste liquid bottle of this utility model in Example 3;

[0020] Figure 10 This is a schematic diagram of the control valve of the irrigation and suction surgical instrument of this invention in the stopped state in Example 1;

[0021] Figure 11 This is a schematic diagram of the control valve of the flushing and suction surgical instrument of this utility model in the flushing state in Example 1;

[0022] Figure 12 This is a schematic diagram of the control valve of the irrigation and suction surgical instrument of this utility model in the suction state in Example 1;

[0023] Figure 13 This is a schematic diagram of the connection structure of the endoscope irrigation suction device of this utility model in Example 4;

[0024] In the diagram: Main unit 100, power cord 200, flushing tubing-A 300, Peristaltic flushing device 400, Flushing tubing-B500, Vacuum pump suction tubing 600, Suction tubing 700, Waste liquid bottle 800, Flushing and suction surgical instruments 900, Infusion bag 1000, Touch screen human-machine interaction system interface 101, Negative pressure suction interface 102, System switch 103, Heat dissipation window 104, Negative pressure suction gas outlet 105, Power input port 106, Protective grounding post 107, Heat dissipation hole 108, Power switch 109, Peristaltic flushing device 110, Peristaltic wheel 1101, Flushing fixing device frame 1102, Diaphragm sensor module 401, Tubing 402, Water inlet 403, Water outlet 404, Sewage inlet 801, Overflow protection device interface 802, Perforated suction tube 901, Handle with sliding valve 902, Flushing interface 9021, Suction interface 9022, Control valve 9023. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the following explanation is provided in conjunction with the accompanying drawings.

[0026] Example 1

[0027] An endoscopic irrigation suction device, such as Figures 1 to 3 As shown, the main unit 100 of the endoscopic irrigation and suction device is equipped with a peristaltic irrigation device 110, a touch screen human-machine interaction system interface 101 for displaying various settings and real-time status of the main unit 100, a negative pressure suction interface 102, a system switch 103, a heat dissipation window 104, a negative pressure suction gas outlet 105, a power input port 106, a protective grounding post 107, a heat dissipation hole 108, a power switch 109, and the peristaltic irrigation device 110.

[0028] An endoscopic irrigation suction device, such as Figure 4 As shown, the peristaltic rinsing device 110 of the endoscopic rinsing aspirator includes a peristaltic wheel 1101 and a rinsing fixing device frame 1102.

[0029] An endoscopic irrigation suction device, such as Figure 5 As shown, the flushing sensing device 400 of the endoscopic flushing aspirator includes a diaphragm sensor module 401, a conduit 402, an inlet 403, and an outlet 404.

[0030] An endoscopic irrigation and aspiration device is provided. The power cord 200 of the endoscopic irrigation and aspiration device is connected to the power input port 106 of the main unit 100, and the power cord 200 is connected to 220 volts. When the power switch 109 of the main unit 100 is pressed upward, the power of the main unit 100 is turned on. When the system switch 103 of the main unit 100 is pressed inward, an accessible screen appears on the touch screen human-computer interaction system interface 101 of the main unit 100.

[0031] An endoscopic irrigation and aspiration device is provided. The touch screen human-machine interface 101 of the main unit 100 of the endoscopic irrigation and aspiration device includes irrigation function options and aspiration function options. The irrigation function options include three preset irrigation flow rates: low (1000 ml / min), medium (1400 ml / min), and high (1800 ml / min). The aspiration function options are implemented through the VAC button on the touch screen human-machine interface 101 of the main unit 100. Since the initial aspiration is 0 kPa, the aspiration pressure preset options of this endoscopic irrigation and aspiration device include two levels (30 kPa and 60 kPa).

[0032] An endoscopic irrigation and aspiration device, when used in conjunction with the endoscopic irrigation and aspiration device for irrigation or aspiration functions, the irrigation and aspiration surgical instrument 900 includes a perforated aspiration tube 901 and a handle 902 with a sliding valve; wherein, the handle 902 with the sliding valve includes an irrigation port 9021, an aspiration port 9022, and a control valve 9023; the control valve 9023 of the handle 902 with the sliding valve is a valve port that can be pushed forward or backward; as Figure 10 As shown, the control valve 9023 with the sliding valve handle 902 is in a stopped state, i.e., an initial state. To adjust to the flushing state, first, adjust the flushing flow preset in the touchscreen human-machine interface 101 of the endoscopic flushing aspirator: any of the three different levels: low (1000ml / min), medium (1400ml / min), and high (1800ml / min); then, push the control valve 9023 from the middle position of the sliding valve handle 902 backwards to activate the flushing state, as shown below. Figure 11As shown. Similarly, if it is necessary to adjust to the suction state, first, adjust either of the two levels (30kPa and 60kPa) in the suction pressure preset options of the touch screen human-machine interface 101 of the endoscopic irrigation suction device; then, push the control valve 9023 from the middle position of the slide valve handle 902 forward to activate the suction state, as shown. Figure 12 As shown;

[0033] Example 2

[0034] This endoscopic irrigation aspirator can be used for irrigation of laparoscopic endoscopes, such as... Figures 5 to 7 and Figure 10 As shown, the flushing function involves injecting liquid into the cavity through the peristaltic wheel 1101 of the peristaltic flushing device 110, including the following steps:

[0035] Step 1: Using an endoscope, hang the infusion bag 1000 of the irrigation suction device on the medical infusion stand and lock the valve button at the outlet of the infusion bag 1000.

[0036] Step 2: Connect one end of the diaphragm sensor module 401 of the flushing sensor 400 to the conduit 402 of the flushing sensor 400.

[0037] Step 3: The diaphragm sensor module 401 of the flushing sensor 400 is snapped back into the slot of the flushing fixing bracket 1102 of the peristaltic flushing device 110, and the conduit 402 of the flushing sensor 400 is wrapped around the outside of the peristaltic wheel 1101 and the flushing fixing bracket 1102 of the peristaltic flushing device 110.

[0038] Step 4: Connect the inlet 403 of the flushing sensor 400 to one end of the flushing conduit-A 300 of the endoscope flushing aspirator.

[0039] Step 5: Connect the other end of the flushing catheter-A 300 of the endoscope flushing aspirator to the infusion tubing of the infusion bag 1000.

[0040] Step 6: Connect one end of the flushing conduit-B 500 of the endoscope flushing aspirator through the water outlet 404 of the flushing sensor 400.

[0041] Step 7: Connect the other end of the irrigation catheter-B 500 of the endoscopic irrigation aspirator to the irrigation port 9021 of the irrigation aspirator surgical instrument 900 of the endoscopic irrigation aspirator.

[0042] Step 8: Release the valve button at the outlet of the infusion bag 1000. You can touch the touch screen human-machine interface 101 of the host 100 to select three different options: low (1000ml / min), medium (1400ml / min), and high (1800ml / min) to select the preset flushing flow rate.

[0043] Step nine: Simultaneously, push the control valve 9023 with the sliding valve handle 902 of the flushing and suction surgical instrument 900 backward to activate the flushing function, so as to perform the corresponding flushing function in conjunction with the different flushing levels selected on the touch screen human-machine interaction system interface 101.

[0044] Example 3

[0045] This endoscopic irrigation and suction device can be used for suction functions in laparoscopic endoscopy, such as... Figure 2 and Figures 8 to 10 As shown, the suction function uses a vacuum pump suction catheter 600 connected to the negative pressure suction port 102 to perform negative pressure suction, removing blood clots, sewage fluid, smoke, etc. from the abdominal cavity to the patient's body, providing a clear view for surgery. This includes the following steps:

[0046] Step 1: The suction port 9022 of the rinsing and suction surgical instrument 900 of the endoscopic rinsing and suction device is connected to one end of the suction tube 700 of the endoscopic rinsing and suction device.

[0047] Step two, the other end of the suction tube 700 of the endoscopic irrigation aspirator is connected to the wastewater inlet 801 of the waste liquid bottle 800 of the endoscopic irrigation aspirator. Figure 9 ) Connect;

[0048] Step 3, through the endoscope, use the overflow protection device interface 802 of the waste liquid bottle 800 of the flushing suction device ( Figure 9 It is connected to one end of the vacuum pump suction tube 600 of the endoscope irrigation suction device;

[0049] Step 4: Connect the other end of the vacuum pump suction tube 600 of the endoscopic irrigation aspirator to the negative pressure suction port 102 of the main unit 100 of the endoscopic irrigation aspirator.

[0050] Step 5 is completed by adjusting the number of times the VAC button is pressed on the touch screen human-machine interaction system interface 101 of the host 100. When the VAC button is not pressed, the suction pressure is 0 kPa; pressing the VAC button once increases the suction pressure to 30 kPa; pressing the VAC button twice increases the suction pressure to 60 kPa; pressing the VAC button three times reduces the suction pressure to 0 kPa, which is equivalent to stopping the suction pressure.

[0051] Step six: Simultaneously, push forward the control valve 9023 of the flushing and suction surgical instrument 900 with the sliding valve handle 902 to activate the suction function, so as to perform the corresponding suction function in conjunction with the different suction levels selected on the touch screen human-machine interaction system interface 101.

[0052] Example 4

[0053] An endoscopic irrigation and aspiration device is disclosed, which features a connection method for two different functions: irrigation and aspiration. The connection method allows for both functions to be connected separately or simultaneously. When connecting both functions simultaneously, the user adjusts one of the three options (low (1000ml / min), medium (1400ml / min), or high (1800ml / min)) on the touchscreen human-machine interface 101 of the main unit 100 of the endoscopic irrigation and aspiration device, based on the preset irrigation flow rate required by the attending physician. Simultaneously, the control valve 9023 of the sliding valve handle 902 is pushed backward from its middle position, enabling the irrigation and aspiration surgical instrument 900 and the endoscopic irrigation and aspiration device to interact and complete the irrigation function. Similarly, if the attending physician needs to preset the suction pressure, he can adjust either of the two settings (30kPa and 60kPa) on the touch screen human-machine interface 101 of the main unit 100 of the endoscopic irrigation and suction device, and then push the control valve 9023 from the middle position of the sliding valve handle 902 forward to enable the irrigation and suction surgical instrument 900 and the endoscopic irrigation and suction device to complete the suction function interaction.

[0054] The technical solutions in the embodiments of this utility model will be clearly and completely described, taking laparoscopic cholecystectomy as an example.

[0055] The equipment required for laparoscopic cholecystectomy includes: a main unit for the camera system, a camera, a monitor, a cold light source main unit, a beam guide, an insufflator, an insufflator tube, an electrosurgical unit, a negative electrode plate, high-frequency leads, and a main unit 100 for the endoscopic irrigation and suction device; the instruments required include: a trocar, an electrocoagulation hook, an electrocoagulation rod, electrocoagulation forceps, curved dissection forceps, titanium clip forceps, a laparoscope, scissors, and grasping forceps; and the instruments required include: a carbon dioxide cylinder and titanium clips.

[0056] Before administering anesthesia to the patient, the equipment and instruments used in the laparoscopic cholecystectomy are connected as follows:

[0057] The negative electrode plate is connected to the inner thigh muscle of the patient, and the negative electrode plate wire is connected to the electrosurgical unit. After the electrosurgical unit is turned on and performs a self-test, the monopolar electrocautery mode and electrocoagulation parameters are set on the front panel of the electrosurgical unit.

[0058] The camera system host and monitor are connected by a data cable. The camera system host is connected to the camera. The other end of the camera is connected to the laparoscope. Turn on the camera system host and monitor.

[0059] Press the camera button to perform white balance adjustment; rotate the camera knob to adjust the image sharpness to achieve the best image quality on the monitor.

[0060] The cold light source host is connected to the beam guide, and the other end of the beam guide is connected to the beam guide interface of the laparoscope. Turn on the cold light source host.

[0061] One end of the pneumoperitoneum tube is connected to the pneumoperitoneum machine, and the other end of the pneumoperitoneum tube is connected to the air inlet of the trocar valve. Insert the tip of the trocar into the patient's abdominal cavity.

[0062] Open the carbon dioxide cylinder valve, turn on the insufflator main unit switch, and set the working parameters of flow and pressure on the front panel of the insufflator main unit to meet the requirements of laparoscopic cholecystectomy.

[0063] Once the actual pressure in the patient's abdominal cavity reaches the preset pressure of the pneumoperitoneum machine, the surgery is ready to begin.

[0064] The two ends of the high-frequency lead wire are connected to the electrocoagulation hook / electrocoagulation rod / electrocoagulation pliers and the electrosurgical knife respectively, so that the electrosurgical knife, the high-frequency lead wire, and the electrocoagulation hook / electrocoagulation rod / electrocoagulation pliers are put into working state respectively;

[0065] The endoscopic irrigation and aspiration device consists of a main unit 100, a power cord 200, an irrigation tubing-A 300, an irrigation sensor 400, an irrigation tubing-B 500, a vacuum pump aspiration tubing 600, an aspiration tubing 700, a waste fluid bottle 800, irrigation and aspiration surgical instruments 900, and an infusion bag 1000. Figure 13 The connection method for its rinsing function is shown in steps

[0032] to

[0042] ; the connection method for its suction function is shown in steps

[0044] to

[0050] . After powering on, turn on the power switch 109 and system switch 103 of the main unit 100 of the endoscopic rinsing and suction device in sequence. Adjust the rinsing function and suction function of the endoscopic rinsing and suction device respectively by cooperating with the touch screen human-machine interaction system interface 101 of the main unit 100 of the endoscopic rinsing and suction device and the rinsing and suction surgical instrument 900.

[0066] During laparoscopic cholecystectomy, the gallbladder is dissected using an electrocoagulation hook, curved dissecting forceps, titanium clip forceps, a laparoscope, and scissors. The titanium clip forceps are used to clamp blood vessels or the cystic duct, and the scissors are used to cut the cystic duct and the surrounding adhesions.

[0067] The gallbladder bed wound was repeatedly irrigated with saline solution using irrigation and suction surgical instruments, and the sewage fluid in the abdominal cavity was aspirated using the same instruments.

[0068] During the procedure, check for bleeding points. Hemostasis can be achieved through electrocoagulation, or a combination of irrigation and suction can be used with 900 irrigation and suction instruments to locate the bleeding point. Electrocoagulation can be performed quickly using electrocoagulation forceps / electrocoagulation rods / electrocoagulation hooks, or larger bleeding points can be clamped with titanium clips.

[0069] During the procedure, electrocoagulation forceps / electrocoagulation rods / electrocoagulation hooks are used to electrocute and electrocoagulate the capillaries and adhesions around the gallbladder. This results in a lot of smoke in the area around the gallbladder in the patient's body. The main unit 100 of the endoscopic irrigation and suction device and the irrigation and suction surgical instrument 900 can be used to remove the smoke from the area around the gallbladder in the patient's body, providing a clear field of vision for the operation.

[0070] If the gallbladder ruptures during the operation, the bile in the gallbladder can be aspirated with the irrigation and suction surgical instrument 900, and the surface of the organs through which the outflowing bile flows can be rinsed or suctioned with the irrigation and suction surgical instrument 900.

[0071] During the procedure, if the surgeon needs to adjust the irrigation flow rate or suction pressure, the scrub nurse can manually select the irrigation flow rate or suction pressure via the touchscreen human-machine interface 101 of the endoscopic irrigation and suction device's main unit 100.

[0072] Once hemostasis is achieved, the sewage fluid in the abdominal cavity is aspirated through the main unit 100 of the endoscopic irrigation and aspiration device and the irrigation and aspiration surgical instrument 900. The irrigation and aspiration surgical instrument 900 is withdrawn from the patient's body, and the gallbladder is removed by grasping forceps. All equipment switches for the laparoscopic cholecystectomy are turned off.

[0073] The doctor sutured the patient's skin wound to complete the laparoscopic cholecystectomy.

Claims

1. An endoscopic irrigation and aspiration device for use in laparoscopic surgery, characterized in that, The endoscopic irrigation and aspiration device includes a main unit, power cord, irrigation tubing-A, irrigation sensing device, irrigation tubing-B, vacuum pump aspiration tubing, suction tubing, waste liquid bottle, irrigation and aspiration surgical instruments, and infusion bag; The endoscope irrigation aspirator is equipped with a peristaltic irrigation device, a touch screen human-machine interaction system interface for displaying various settings and real-time status of the host, a negative pressure aspiration interface, a system switch, a heat dissipation window, a negative pressure aspiration gas outlet, a power input port, a protective grounding post, a power switch, and a peristaltic irrigation device. The peristaltic flushing device includes a peristaltic wheel and a flushing fixing device frame; The flushing sensing device includes a diaphragm sensor module, a conduit, an inlet, and an outlet. The endoscope is connected to the power input port of the main unit via the power cord of the irrigation suction device, and the power cord is connected to 220 volts; when the power switch of the main unit is pressed up, the main unit is powered on; when the system switch of the main unit is pressed inward, a touchable window appears on the touch screen human-computer interaction system interface of the main unit. The touchscreen human-machine interface of the main unit of the endoscopic irrigation and aspiration device includes irrigation function options and aspiration function options. The flushing function options include three preset flushing flow rates: low (1000 ml / min), medium (1400 ml / min), and high (1800 ml / min). The suction function option is accessed via the VAC button on the touchscreen human-machine interface of the main unit. Since the initial suction is preset to 0 kPa, the suction pressure preset options for this endoscopic irrigation suction device include two levels (30 kPa and 60 kPa).

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