An irrigation line for an endoscope irrigation suction system

Abstract

The application discloses a kind of irrigation pipeline of endoscope irrigation suction system, including base, peristaltic pump is equipped on base, and irrigation container is connected peristaltic pump by pipeline;The end of pipeline connected with irrigation container is connected with tee joint after peristaltic pump;The other end of tee joint is connected with endoscope by another pipeline, and the remaining end of tee joint is connected with perfusion pressure measuring connector on base by perfusion pressure measuring bottle;Irrigation container, perfusion pressure measuring connector and endoscope are communicated with each other by tee joint;Perfusion pressure measuring bottle includes balloon bottle, and the other end of perfusion pressure measuring bottle is connected with perfusion pressure measuring connector by pressure transmission connector;The end of cavity pressure measuring line away from cavity pressure measuring interface is connected with guide sheath.The application uses double safety pressure measuring structure, perfusion pressure measuring bottle detects perfusion pressure on endoscope, and cavity pressure measuring of renal pelvis is detected by pressure measuring PI pipe in guide sheath, to realize bacteria blocking pressure measuring irrigation pipeline, and output pressure and flow control are carried out.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a flushing tubing for real-time pressure monitoring in an endoscopic flushing and suction system. Background Technology

[0002] Urinary tract stones are a common and frequently occurring disease in urology. With the continuous development of endoscopic techniques and the improvement of lithotripsy equipment and stone removal tools, endoscopic laser lithotripsy is currently the main treatment for kidney stones. During endoscopic lithotripsy, an irrigation process is required. First, physiological saline in the irrigation container 12 is used to irrigate the abdominal cavity through the endoscope 13, while lithotripsy is performed simultaneously. Currently, most endoscopic surgeries rely on pump flow control without real-time pressure monitoring, which can increase surgical risks and needs improvement. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an irrigation tubing for an endoscopic irrigation and suction system. Through irrigation pressure measurement and cavity pressure measurement, a double-protected constant-pressure irrigation system is achieved, reducing surgical risks.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An endoscopic irrigation and aspiration system includes an irrigation tubing comprising a base, a peristaltic pump mounted on the base, and an irrigation container connected to the peristaltic pump via a pipe. The pipe connected to the irrigation container extends beyond the peristaltic pump at its rear end, and is connected to a tee connector at its rear end. The other end of the tee connector is connected to the endoscope via another pipe, and the remaining end of the tee connector is connected to a filling pressure testing connector on the base via a filling pressure testing bottle. The irrigation container, the filling pressure testing connector, and the endoscope are interconnected via the tee connector.

[0006] The filling pressure testing bottle includes a balloon bottle. One end of the balloon bottle is equipped with a pressure receiving connector, and the end of the balloon bottle away from the pressure receiving connector is a threaded end, which is an open interface end. A pressure transmitting connector is provided on the threaded end, and a pressure plate is provided on the end of the pressure transmitting connector near the threaded end. A protruding sealing ring seat is provided on the side of the pressure plate away from the pressure transmitting connector. An inflated balloon is fitted on the pressure plate, and the balloon covers the sealing ring seat and is placed on the pressure plate. The balloon is set in the cavity of the balloon bottle.

[0007] One end of the filling pressure testing bottle is connected to the tee connector via a pressure receiving connector, and the other end of the filling pressure testing bottle is connected to the filling pressure testing connector via a pressure transmitting connector.

[0008] The base panel is equipped with a cavity pressure measurement interface, and the base contains a circuit board. The cavity pressure measurement interface is electrically connected to one of the pressure sensors on the circuit board. The cavity pressure measurement interface is equipped with a cavity pressure measurement line, and the end of the cavity pressure measurement line away from the cavity pressure measurement interface is connected to a guide sheath.

[0009] Furthermore, in some embodiments, the sealing ring seat is inserted into the threaded end, and the sealing ring seat and the threaded end are tightly fitted together; the inflated air bladder sleeved on the sealing ring seat is placed in the cavity of the balloon bottle, the pressure plate covers the threaded end, and the pressure plate and the threaded end are tightly fitted together; the pressure transmission connector is sleeved with a screw cap, the screw cap is threadedly connected to the threaded end, and the pressure transmission connector is conductively connected to the filling pressure testing connector.

[0010] Furthermore, in some embodiments, a plurality of anti-detachment protrusions are provided on the outer wall of the sealing ring seat, and the airbag covers the anti-detachment protrusions of the sealing ring seat;

[0011] The balloon bottle, pressure-bearing connector, and threaded end are integrally molded; the pressure-transmitting connector, pressure plate, and sealing ring seat are integrally molded.

[0012] The outer diameter D2 of the sealing ring seat is equal to or less than the inner diameter D4 of the threaded end, and the outer diameter D2 of the sealing ring seat is tightly fitted to match the inner diameter D4 of the threaded end; the outer diameter D1 of the pressure plate is greater than the outer diameter D2 of the sealing ring seat.

[0013] The outer diameter D1 of the pressure plate is smaller than the outer diameter D3 of the threaded end, and the outer diameter D1 of the pressure plate is larger than the inner diameter D4 of the threaded end. The pressure plate is tightly fitted at the end of the threaded end.

[0014] Furthermore, in some embodiments, the cavity pressure measuring line is connected to the cavity pressure measuring interface via a pressure measuring plug at its end, and the pressure measuring plug is inserted into the cavity pressure measuring interface; the end of the cavity pressure measuring line away from the pressure measuring plug is connected to a guide sheath.

[0015] Furthermore, in some embodiments, the guide sheath is provided with a forward-extending sheath tube, and the rear of the guide sheath is provided with a pressure measuring chamber tube and a negative pressure connecting tube, which are symmetrically arranged on both sides of the rear of the guide sheath; a through pressure measuring PI tube is provided in the tube wall of the sheath tube, and the front end of the pressure measuring PI tube is located on the side wall of the sheath tube away from the pressure measuring chamber tube; the rear end of the pressure measuring PI tube extends through the sheath tube and is located in the pressure measuring chamber tube, and the pressure measuring PI tube and the pressure measuring chamber tube are connected in a continuous manner; the connector of the cavity pressure measuring line away from the pressure measuring plug is located in the pressure measuring chamber tube of the guide sheath.

[0016] Furthermore, in some embodiments, the pipe portion on the peristaltic pump is clamped onto the peristaltic pump, and the end of the pipe leading out of the flushing container after passing through the peristaltic pump is connected to a tee connector.

[0017] The peristaltic pump has symmetrical pipe clamps on both sides, which clamp the pipe onto the pump. The pipe clamps are equipped with nuts, and there are adjusting screws on the bottom of the pipe clamps that match the nuts. There are indicator marks on the outward side of the pipe clamps.

[0018] Furthermore, in some embodiments, the base panel is provided with a filling pressure test connector, the base is provided with a circuit board, the circuit board is provided with a pressure sensor, and the filling pressure test connector is electrically connected to the pressure sensor on the circuit board.

[0019] This invention employs a dual-safety pressure measurement structure. The perfusion pressure measurement bottle detects the perfusion pressure on the endoscope, controls the flow rate of the peristaltic pump, monitors and controls the perfusion pressure, and simultaneously detects the pressure inside the renal pelvis (cavity pressure measurement) through the pressure measurement PI tube (capillary pressure measurement tube) in the guide sheath to control the cavity pressure within a safe range.

[0020] The balloon bottle of this invention contains an air bladder. The air bladder serves two purposes: firstly, it allows liquid to enter the balloon bottle and transmits the infusion pressure; secondly, it acts as an insulator, preventing water from entering the equipment. The infusion pressure monitoring bottle monitors and controls the infusion pressure, output pressure, and flow rate, ensuring constant pressure infusion; and thirdly, it achieves antibacterial pressure monitoring and flushing of the pipeline. This invention provides real-time comparative monitoring, reducing surgical risks and improving treatment outcomes. Attached Figure Description

[0021] Figure 1 This is an application diagram illustrating an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the filling pressure testing bottle portion in an embodiment of this application;

[0023] Figure 3 This is a cross-sectional structural diagram of the balloon bottle portion in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the pipeline in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the guide sheath portion according to an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the base portion of an embodiment of this application;

[0027] Figure 7 This is an assembly diagram of the filling pressure testing bottle portion according to an embodiment of this application;

[0028] Figure 8 This is a schematic diagram of the peristaltic pump portion in an embodiment of this application;

[0029] Figure 9 This is a cross-sectional view of the peristaltic pump portion in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 11. Base, 12. Flushing container, 13. Endoscope, 15. T-connector, 19. Pipe, 22. Infusion pressure test connector, 23. Cavity pressure test interface, 24. Cavity pressure test line, 25. Circuit board, 26. Pressure sensor, 31. Peristaltic pump, 32. Tube clamp, 33. Adjusting screw, 34. Nut, 35. Indicator, 51. Guide sheath, 52. Pressure test PI tube, 53. Pressure test chamber tube, 54. Negative pressure connection tube, 55. Infusion pressure test bottle, 61. Balloon bottle, 62. Pressure receiving connector, 63. Threaded end, 64. Pressure transmission connector, 65. Pressure plate, 66. Sealing ring seat, 67. Screw cap, 68. Airbag, 69. Detailed Implementation

[0032] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, and to analyze the advantages and spirit of the present invention, a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments is provided below.

[0033] Referring to the accompanying drawings, this application includes: a base 11, on which a peristaltic pump 31 is mounted; a flushing container 12 (saline bag) is connected to the peristaltic pump 31 via a pipe 19; the end of the pipe 19 connected to the flushing container 12 extends beyond the peristaltic pump 31; a portion of the pipe 19 on the peristaltic pump 31 is clamped onto the peristaltic pump 31; the end of the pipe 19 leading out from the flushing container 12 after passing through the peristaltic pump 31 is connected to a tee connector 15; the other end of the tee connector 15 is connected to an endoscope 13 via another pipe 19; the remaining end of the tee connector 15 is connected to an infusion pressure testing connector 22 on the base 11 via an infusion pressure testing bottle 61; the flushing container 12, the infusion pressure testing connector 22, and the endoscope 13 are interconnected via the tee connector 15. The infusion pressure testing bottle 61 detects the pressure of the infusion water inlet pipe, and the infusion pressure testing connector 22 (via a pressure sensor 26) is used to monitor the infusion water pressure of the peristaltic pump 31.

[0034] The base 11 has a filling pressure test connector 22 on its panel and a circuit board 25 in its interior. The circuit board 25 has a pressure sensor 26 on it, and the filling pressure test connector 22 is electrically connected to the pressure sensor 26 on the circuit board 25.

[0035] Furthermore, in one embodiment, the base 11 has a cavity pressure measurement interface 23 on its panel, and a circuit board 25 is provided in the base 11. The cavity pressure measurement interface 23 is electrically connected to one of the pressure sensors 26 on the circuit board 25. The cavity pressure measurement interface 23 has a cavity pressure measurement line 24, which is connected to the cavity pressure measurement interface 23 through a pressure measurement plug 27 at its end. The pressure measurement plug 27 is inserted into the cavity pressure measurement interface 23. The end of the cavity pressure measurement line 24 away from the pressure measurement plug 27 is connected to a guide sheath 51, and the cavity pressure measurement interface 23 is electrically connected to one of the pressure sensors 26 on the circuit board 25.

[0036] Furthermore, in one embodiment, the guide sheath 51 is provided with a forward-extending sheath tube 52, and the rear part (insertion end) of the guide sheath 51 is provided with a pressure measuring chamber tube 54 and a negative pressure connecting tube 55, which are symmetrically arranged on both sides of the rear part of the guide sheath 51; a through pressure measuring PI tube 53 is provided in the tube wall of the sheath tube 52, and the front end (opening) of the pressure measuring PI tube 53 is provided on the end side wall of the sheath tube 52, that is, the front end (opening) of the pressure measuring PI tube 53 is provided on the side wall of the sheath tube 52 away from the pressure measuring chamber tube 54; the rear end of the pressure measuring PI tube 53 extends through the sheath tube 52 and is provided in the pressure measuring chamber tube 54, and the pressure measuring PI tube 53 and the pressure measuring chamber tube 54 are connected in a through manner.

[0037] Furthermore, in one embodiment, the connector of the end of the cavity pressure measuring line 24 away from the pressure measuring plug 27 is disposed in the pressure measuring cavity 54 of the guide sheath 51.

[0038] The cavity pressure measurement interface 23 is the data interface of the cavity pressure measurement line 24 and can be a Remo female connector; the pressure measurement plug 27 at the end of the cavity pressure measurement line 24 can be a Remo male connector, and the cavity pressure measurement interface 23 and the pressure measurement plug 27 are matched.

[0039] The pressure inside the renal pelvis is connected to the pressure sensor 26 on the circuit board 25 via the pressure measuring PI tube 53 (capillary pressure measuring tube) inside the guide sheath 51. The pressure measuring PI tube 53 detects the pressure inside the renal pelvis (cavity pressure measurement), and the pressure sensor 26 (pressure sensor) on the circuit board 25 collects the data in real time. When the pressure exceeds the set pressure, the peristaltic pump 31 stops or slows down to control the cavity pressure within a safe range.

[0040] Furthermore, in one embodiment, the filling pressure testing bottle 61 includes a balloon bottle 62. One end of the balloon bottle 62 is provided with a pressure receiving connector 63, and the end of the balloon bottle 62 away from the pressure receiving connector 63 is a threaded end 64, which is an open interface end. A pressure transmitting connector 65 is provided on the threaded end 64, and a pressure plate 66 is provided at the end of the pressure transmitting connector 65 near the threaded end 64. A protruding sealing ring seat 67 is provided on the side of the pressure plate 66 away from the pressure transmitting connector 65. An inflated airbag 69 (latex airbag) is fitted on the pressure plate 66. The airbag 69 covers the sealing ring seat 67 and is fitted on the pressure plate 66. The airbag 69 is disposed in the cavity of the balloon bottle 62.

[0041] Furthermore, in one embodiment, see Appendix Figure 1 As shown, one end of the filling pressure testing bottle 61 is connected to the tee connector 15 via the pressure receiving connector 63, and the other end of the filling pressure testing bottle 61 is connected to the filling pressure testing connector 22 via the pressure transmitting connector 65. The filling pressure testing bottle 61 detects the filling pressure on the endoscope 13, and the peristaltic pump 31 controls the flow rate. The filling pressure is monitored and controlled through the filling pressure testing bottle 61, and the output pressure and flow rate are controlled accordingly.

[0042] The peristaltic pump 31 injects water into the outlet conduit (pipe 19), which then enters the endoscope 13 (flexible endoscope), which is then inserted into the renal pelvis. Waste fluid from the renal pelvis is collected in a waste bottle via a negative pressure suction tube through the negative pressure connector 55 of the guide sheath 51. The guide sheath 51 has a pressure measuring PI tube 53 (capillary pressure measuring tube) inside its sheath 52 wall. The pressure measuring PI tube 53 (cavity pressure measuring) is connected to the equipment via a pressure measuring connector 54. The pressure measuring PI tube 53 senses the pressure sensor 26 on the circuit board 25 of the base 11, and the cavity pressure readings are displayed on the screen for real-time cavity pressure monitoring and comparison.

[0043] Furthermore, in one embodiment, see Appendix Figure 4 As shown, the sealing ring seat 67 is inserted into the threaded end 64, and the sealing ring seat 67 and the threaded end 64 are tightly fitted together. The inflated air bladder 69, which is sleeved on the sealing ring seat 67, is placed in the cavity of the balloon bottle 62. The pressure plate 66 covers the threaded end 64, and the pressure plate 66 and the threaded end 64 are tightly abutted together. A screw cap 68 is sleeved on the pressure transmission connector 65, and the screw cap 68 is threadedly connected to the threaded end 64. The screw cap 68 locks the pressure transmission connector 65 (pressure plate 66) to the threaded end 64 of the balloon bottle 62. The pressure transmission connector 65 is electrically connected to the filling pressure testing connector 22.

[0044] The outer wall of the sealing ring seat 67 is provided with several anti-detachment protrusions, and the airbag 69 covers the anti-detachment protrusions of the sealing ring seat 67. The balloon bottle 62, the pressure receiving connector 63, and the threaded end 64 are integrally formed, and the pressure transmitting connector 65, the pressure plate 66, and the sealing ring seat 67 are integrally formed.

[0045] The filling pressure test bottle 61 detects the pressure of the filling inlet pipeline, and the filling pressure test connector 22 (via pressure sensor 26) is used to monitor the filling outlet pressure of the peristaltic pump 31 (filling pump).

[0046] Furthermore, in one embodiment, see Appendix Figure 3 As shown, the outer diameter D2 of the sealing ring seat 67 is equal to or less than the inner diameter D4 of the threaded end 64, and the outer diameter D2 of the sealing ring seat 67 is tightly fitted and matched with the inner diameter D4 of the threaded end 64; the outer diameter D1 of the pressure plate 66 is greater than the outer diameter D2 of the sealing ring seat 67; the outer diameter D1 of the pressure plate 66 is less than the outer diameter D3 of the threaded end 64, and the outer diameter D1 of the pressure plate 66 is greater than the inner diameter D4 of the threaded end 64, and the pressure plate 66 is tightly fitted at the end of the threaded end 64.

[0047] The peristaltic pump 31 has symmetrical clamp seats 32 on both sides, which clamp the pipe 19 onto the peristaltic pump 31. A nut 34 is provided on the clamp seat 32, and an adjusting screw wheel 33 corresponding to the nut 34 is located below the clamp seat 32. Rotating the adjusting screw wheel 33 adjusts the vertical displacement of the clamp seat 32. An indicator 35 is provided on the outward-facing side of the clamp seat 32. The adjusting screw wheel 33 allows the clamp seat 32 to rise and fall, clamping pipes 19 of different diameters. The indicator 35 marks the position of pipes 19 of different diameters. The adjusting screw wheel 33 can also fine-tune the clamping tightness of the clamped portion of the pipe 19.

[0048] The peristaltic pump 31 clamps the pump section on the flushing pipe (pipe 19), and the peristaltic pump 31 injects water into the outlet pipe (pipe 19). The water enters the endoscope 13 (flexible endoscope), which is then inserted into the renal pelvis. The perfusion pressure measuring bottle 61 detects the perfusion pressure on the endoscope 13. The flow rate is controlled by the peristaltic pump 31, and the perfusion pressure measuring bottle 61 monitors and controls the perfusion pressure, as well as the output pressure and flow rate.

[0049] The filling pressure test bottle 61 detects the filling pressure on the endoscope 13, and the peristaltic pump 31 controls the flow rate. The filling pressure is monitored and controlled through the filling pressure test bottle 61, and the output pressure and flow rate are controlled.

[0050] The pressure testing bottle 61 is filled with water for pressure testing (filling water pressure testing). The pressure testing port is on the outlet pipe 19. The outlet pipe 19 is equipped with a three-way connector 15. When the peristaltic pump 31 fills the outlet pipe (pipe 19) with liquid, one of the three-way connectors 15 on the outlet pipe (pipe 19) is connected to the pressure testing bottle 61, and the other three-way connector 15 is connected to the endoscope 13 (flexible endoscope). When the endoscope 13 (flexible endoscope) is blocked or the pressure is too high, it can be sensed by the pressure testing, and the peristaltic pump 31 will automatically adjust or shut down.

[0051] The filling pressure testing bottle 61 contains an air bladder 69 (latex air bladder) inside the balloon bottle 62, which must be kept inflated. The air bladder 69 serves two purposes: firstly, after liquid enters the balloon bottle 62, the filling pressure is measured by squeezing the air bladder 69; secondly, the air bladder 69 also acts as an insulator, preventing water from entering the equipment. The air bladder 69 inside the balloon bottle 62 converts hydraulic pressure into pneumatic pressure. The filling pressure testing bottle 61 implements antibacterial pressure testing and flushing of the pipeline, displays real-time pressure values, and when the filling pressure test detects a pressure exceeding the set pressure, the peristaltic pump 31 will stop or slow down to maintain the set pressure.

[0052] The above embodiments only illustrate several preferred implementations of the present invention, and their descriptions are relatively specific and detailed. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be modified within the scope of the inventive concept described herein through the above teachings or related field techniques or knowledge. This should not be construed as a limitation on the scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept. Such modifications and changes do not depart from the spirit and scope of the present invention, and all fall within the protection scope of the appended claims. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A flushing tubing for an endoscopic flushing and suction system, comprising: A base (11) is provided with a peristaltic pump (31), and a flushing container (12) is connected to the peristaltic pump (31) through a pipe (19); characterized in that the end of the pipe (19) connected to the flushing container (12) after passing through the peristaltic pump (31) extends outside the peristaltic pump (31), and the end of the pipe (19) connected to the flushing container (12) after passing through the peristaltic pump (31) is connected to a three-way connector (15); the other end of the three-way connector (15) is connected to the endoscope (13) through another pipe (19), and the remaining end of the three-way connector (15) is connected to the filling pressure test connector (22) on the base (11) through a filling pressure test bottle (61); the flushing container (12), the filling pressure test connector (22) and the endoscope (13) are interconnected through the three-way connector (15); The filling pressure testing bottle (61) includes a balloon bottle (62). One end of the balloon bottle (62) is provided with a pressure-receiving connector (63). The end of the balloon bottle (62) away from the pressure-receiving connector (63) is a threaded end (64), which is an open interface end. A pressure transmission connector (65) is provided on the threaded end (64). A pressure plate (66) is provided on the end of the pressure transmission connector (65) near the threaded end (64). A protruding sealing ring seat (67) is provided on the side of the pressure plate (66) away from the pressure transmission connector (65). An inflated airbag (69) is fitted on the pressure plate (66). The airbag (69) covers the sealing ring seat (67) and is then fitted on the pressure plate (66). The airbag (69) is located in the cavity of the balloon bottle (62). One end of the filling pressure testing bottle (61) is connected to the tee connector (15) through the pressure receiving connector (63), and the other end of the filling pressure testing bottle (61) is connected to the filling pressure testing connector (22) through the pressure transmitting connector (65). The base (11) has a cavity pressure measurement interface (23) on its panel and a circuit board (25) in its center. The cavity pressure measurement interface (23) is connected to one of the pressure sensors (26) on the circuit board (25). The cavity pressure measurement interface (23) has a cavity pressure measurement line (24) on it. The end of the cavity pressure measurement line (24) away from the cavity pressure measurement interface (23) is connected to the guide sheath (51). A sealing ring seat (67) is inserted into the threaded end (64), and the sealing ring seat (67) and the threaded end (64) are tightly fitted together; an inflated air bladder (69) fitted on the sealing ring seat (67) is placed in the cavity of the balloon bottle (62), and a pressure plate (66) covers the threaded end (64), and the pressure plate (66) and the threaded end (64) are tightly fitted together; a screw cap (68) is fitted on the pressure transmission connector (65), and the screw cap (68) is threadedly connected to the threaded end (64), and the pressure transmission connector (65) is electrically connected to the filling pressure test connector (22).

2. The flushing tubing of an endoscope flushing and suction system according to claim 1, characterized in that, The outer wall of the sealing ring seat (67) is provided with several anti-detachment protrusions, and the airbag (69) covers the anti-detachment protrusions of the sealing ring seat (67); The balloon bottle (62), the pressure-bearing connector (63), and the threaded end (64) are integrally formed; the pressure-transmitting connector (65), the pressure plate (66), and the sealing ring seat (67) are integrally formed. The outer diameter D2 of the sealing ring seat (67) is equal to or less than the inner diameter D4 of the threaded end (64), and the outer diameter D2 of the sealing ring seat (67) and the inner diameter D4 of the threaded end (64) are tightly fitted and matched. The outer diameter D1 of the pressure plate (66) is greater than the outer diameter D2 of the sealing ring seat (67); The outer diameter D1 of the pressure plate (66) is smaller than the outer diameter D3 of the threaded end (64), and the outer diameter D1 of the pressure plate (66) is larger than the inner diameter D4 of the threaded end (64). The pressure plate (66) is pressed against the end of the threaded end (64).

3. The flushing tubing of an endoscope flushing and suction system according to claim 1, characterized in that, The cavity pressure measuring line (24) is connected to the cavity pressure measuring interface (23) through the pressure measuring plug (27) at the end, and the pressure measuring plug (27) is inserted into the cavity pressure measuring interface (23); the end of the cavity pressure measuring line (24) away from the pressure measuring plug (27) is connected to the guide sheath (51).

4. The flushing tubing of an endoscope flushing and suction system according to claim 3, characterized in that, The guide sheath (51) is provided with a forward-extending sheath tube (52), and the rear part of the guide sheath (51) is provided with a pressure measuring chamber tube (54) and a negative pressure connecting tube (55). The pressure measuring chamber tube (54) and the negative pressure connecting tube (55) are respectively symmetrically arranged on both sides of the rear part of the guide sheath (51). A pressure measuring PI tube (53) is provided through the tube wall of the sheath tube (52). The front end of the pressure measuring PI tube (53) is arranged on the side wall of the end of the sheath tube (52) away from the pressure measuring chamber tube (54). The rear end of the pressure measuring PI tube (53) extends through the sheath tube (52) and is arranged in the pressure measuring chamber tube (54). The pressure measuring PI tube (53) and the pressure measuring chamber tube (54) are connected in a continuous manner. The connector of the cavity pressure measuring line (24) away from the pressure measuring plug (27) is arranged in the pressure measuring chamber tube (54) of the guide sheath (51).

5. The flushing tubing of an endoscope flushing and suction system according to claim 1, characterized in that, The pipe (19) on the peristaltic pump (31) is partially clamped on the peristaltic pump (31), and the end of the pipe (19) leading out of the flushing container (12) after passing through the peristaltic pump (31) is connected to a tee connector (15). The peristaltic pump (31) has symmetrical clamp seats (32) on both sides. The clamp seats (32) clamp the pipe (19) on the peristaltic pump (31). The clamp seats (32) have nuts (34) on them. The clamp seats (32) have adjusting screws (33) that match the nuts (34) on their underside. The clamp seats (32) have indicator marks (35) on their outward side.

6. The flushing tubing of an endoscope flushing and suction system according to claim 1, characterized in that, The base (11) has a filling pressure test connector (22) on its panel, a circuit board (25) in the base (11), a pressure sensor (26) on the circuit board (25), and the filling pressure test connector (22) is connected to the pressure sensor (26) on the circuit board (25).

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