Endoscope infusion pressure monitoring system

By using the endoscopic irrigation pressure monitoring system to measure irrigation pressure and cavity pressure, the problem of lack of real-time pressure monitoring in endoscopic surgery has been solved, achieving constant pressure irrigation, reducing surgical risks and improving safety.

WO2026066798A1PCT designated stage Publication Date: 2026-04-02DONGGUAN ZSR BIOMEDICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-04-02

AI Technical Summary

Technical Problem

The lack of real-time pressure monitoring in current endoscopic surgeries increases surgical risks.

Method used

Design an endoscopic irrigation pressure monitoring system to achieve constant pressure irrigation with double insurance through irrigation pressure measurement and cavity pressure measurement. The system uses an irrigation pressure measuring bottle and a pressure sensor to monitor the irrigation inlet pressure of the peristaltic pump and stops or slows down when the set pressure is reached.

Benefits of technology

Constant pressure irrigation was achieved, which reduced surgical risks and improved the safety and effectiveness of the surgery.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN2025115345_02042026_PF_FP_ABST
    Figure CN2025115345_02042026_PF_FP_ABST
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Abstract

Provided is an endoscope infusion pressure monitoring system, relating to the technical field of medical devices. The system comprises: a machine base (11) provided with a peristaltic pump (31). A rinse container (12) is connected to the peristaltic pump (31) by means of a pipeline (19). An end part of the pipeline (19) connected to the rinse container (12) after passing through the peristaltic pump (31) extends outside the peristaltic pump (31), and the end part of the pipeline (19) connected to the rinse container (12) after passing through the peristaltic pump (31) is connected to a three-way connector (15). Another end of the three-way connector (15) is connected to an endoscope (13) by means of another pipeline (19), and the remaining end of the three-way connector (15) is connected to an infusion pressure measurement connector (22) on the machine base (11) by means of an infusion pressure measurement bottle (61). The rinse container (12), the infusion pressure measurement connector (22), and the endoscope (13) are in communication with each other by means of the three-way connector (15), and the infusion pressure measurement connector (22) monitors the infusion inlet pressure of the peristaltic pump (31) by means of a pressure sensor (26).
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Description

An endoscope perfusion pressure monitoring system TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an endoscope perfusion pressure monitoring system. BACKGROUND

[0002] Urinary calculi is a common and frequently-occurring disease in urology, with the continuous development of endoscopic technology and the continuous improvement of lithotripsy equipment and stone removal tools, endoscopic laser lithotripsy is currently mainly used to treat kidney stones. When performing endoscopic lithotripsy surgery, a flushing process is required to flush the physiological saline in the flushing container through the endoscope to the abdominal cavity while performing the lithotripsy surgery. In the known endoscopic surgery, the flow of the pump body is controlled, and real-time pressure monitoring is not performed, which may increase the risk of surgery and needs to be improved. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art, and provides an endoscope perfusion pressure monitoring system, which realizes double-insurance constant-pressure water perfusion through perfusion pressure measurement and cavity pressure measurement, reduces the risk of surgery, and realizes constant-pressure water perfusion.

[0004] To achieve the above-mentioned purpose, the present application provides the following scheme: the present application provides an endoscope perfusion pressure monitoring system, which comprises a base, a peristaltic pump is arranged on the base, and a flushing container is connected to the peristaltic pump through a pipeline; characterized in that the end of the pipeline connected to the flushing container extends outside the peristaltic pump after penetrating the peristaltic pump, and the end of the pipeline connected to the flushing container after penetrating the peristaltic pump is connected to a three-way joint; the other end of the three-way joint is connected to an endoscope through another pipeline, and the remaining end of the three-way joint is connected to a perfusion pressure measurement joint on the base through a perfusion pressure measurement bottle; the flushing container, the perfusion pressure measurement joint, and the endoscope are in communication with each other through the three-way joint, the perfusion pressure measurement joint monitors the perfusion water pressure of the peristaltic pump through a pressure sensor, and when the perfusion pressure measurement detects a pressure greater than a set pressure, the peristaltic pump will stop or slow down to maintain the set pressure.

[0005] In an embodiment, the perfusion pressure measurement bottle comprises a balloon bottle, one end of the balloon bottle is provided with a pressure receiving joint, the end of the balloon bottle away from the pressure receiving joint is a threaded end, and the threaded end is an open interface end; a pressure transmission joint is arranged on the threaded end, one end of the pressure transmission joint close to the threaded end is provided with a pressure disc, the side of the pressure disc away from the pressure transmission joint is provided with a protruding sealing ring seat, an inflated gas bag is sleeved on the pressure disc, and the gas bag is sleeved on the pressure disc after covering the sealing ring seat; the gas bag is arranged in the cavity of the balloon bottle; one end of the perfusion pressure measurement bottle is connected to the three-way joint through the pressure receiving joint, and the other end of the perfusion pressure measurement bottle is connected to the perfusion pressure measurement joint through the pressure transmission joint.

[0006] In an embodiment, the sealing ring seat is inserted in the threaded end, and the sealing ring seat is tightly fitted with the threaded end; the inflated state air bag sleeved on the sealing ring seat is arranged in the balloon bottle cavity, the pressure plate is covered on the threaded end, and the pressure plate is tightly arranged with the threaded end; the pressure transmission connector is sleeved with the screw cap, the screw cap is threadedly connected with the threaded end, and the pressure transmission connector is in conductive connection with the perfusion pressure connector.

[0007] In an embodiment, the sealing ring seat is inserted in the threaded end, and the sealing ring seat is tightly fitted with the threaded end; the inflated state air bag sleeved on the sealing ring seat is arranged in the balloon bottle cavity, the pressure plate is covered on the threaded end, and the pressure plate is tightly arranged with the threaded end; the pressure transmission connector is sleeved with the screw cap, the screw cap is threadedly connected with the threaded end, and the pressure transmission connector is in conductive connection with the perfusion pressure connector.

[0008] In an embodiment, the face plate of the machine base is provided with a cavity pressure measuring interface, the machine base is provided with a circuit board, and the cavity pressure measuring interface is in conductive connection with one of the pressure sensors on the circuit board; the cavity pressure measuring interface is provided with a cavity pressure measuring line, and one end of the cavity pressure measuring line away from the cavity pressure measuring interface is connected with a guide sheath.

[0009] In an embodiment, the cavity pressure measuring line is connected with the cavity pressure measuring interface through a pressure measuring plug at an end portion, and the pressure measuring plug is inserted in the cavity pressure measuring interface; one end of the cavity pressure measuring line away from the pressure measuring plug is connected with the guide sheath.

[0010] In an embodiment, the guide sheath is provided with a sheath tube extending forward, and the guide sheath is provided with a pressure measuring cavity tube and a negative pressure connecting tube at a rear portion; the pressure measuring cavity tube and the negative pressure connecting tube are symmetrically arranged at two sides of the rear portion of the guide sheath; a through pressure measuring PI tube is arranged in the wall of the sheath tube, and a front end of the pressure measuring PI tube is arranged on the side wall of the sheath tube at an end portion away from the pressure measuring cavity tube; a rear end of the pressure measuring PI tube is arranged in the pressure measuring cavity tube through the sheath tube, and the pressure measuring PI tube is in through connection with the pressure measuring cavity tube; a connector of the cavity pressure measuring line away from the pressure measuring plug is arranged in the pressure measuring cavity tube of the guide sheath.

[0011] In an embodiment, a pipeline portion of the peristaltic pump is clamped on the peristaltic pump, and an end portion of the pipeline led out after passing through the peristaltic pump is connected with a three-way connector; opposite symmetric clamp seats are arranged at two sides of the peristaltic pump, and the clamp seats clamp the pipeline on the peristaltic pump; a nut is arranged on the clamp seat, an adjusting screw is arranged on the lower surface of the clamp seat corresponding to the nut, and an indication mark is arranged on the outward side surface of the clamp seat.

[0012] In an embodiment, the panel of the base is provided with a perfusion pressure measuring connector, the base is provided with a circuit board, and the circuit board is provided with a pressure sensor, and the perfusion pressure measuring connector is in conductive connection with the pressure sensor on the circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0014] Fig. 1 is a schematic diagram of the application of an endoscope perfusion pressure monitoring system in one or more embodiments of the present application;

[0015] Fig. 2 is a schematic diagram of the structure of a perfusion pressure measuring bottle in one or more embodiments of the present application;

[0016] Fig. 3 is a sectional view of the structure of a balloon bottle in one or more embodiments of the present application;

[0017] Fig. 4 is a schematic diagram of the pipeline of an endoscope perfusion pressure monitoring system in one or more embodiments of the present application;

[0018] Fig. 5 is a schematic diagram of the structure of a guide sheath in one or more embodiments of the present application;

[0019] Fig. 6 is a schematic diagram of the structure of a base in one or more embodiments of the present application;

[0020] Fig. 7 is an assembly schematic diagram of a perfusion pressure measuring bottle in one or more embodiments of the present application;

[0021] Fig. 8 is a schematic diagram of the structure of a peristaltic pump in one or more embodiments of the present application;

[0022] Fig. 9 is a sectional view of the structure of a peristaltic pump in one or more embodiments of the present application.

[0023] Legend of the drawings: base 11, irrigation container 12, endoscope 13, three-way joint 15, pipeline 19, perfusion pressure measuring connector 22, cavity pressure measuring interface 23, cavity pressure measuring line 24, circuit board 25, pressure sensor 26, peristaltic pump 31, pinch seat 32, adjusting screw 33, nut 34, indicator 35, guide sheath 51, sheath tube 52, pressure measuring PI tube 53, pressure measuring cavity tube 54, negative pressure connecting tube 55, perfusion pressure measuring bottle 61, balloon bottle 62, pressure receiving connector 63, threaded end 64, pressure transmitting connector 65, pressure plate 66, sealing ring seat 67, screw cap 68, air bag 69. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0025] The purpose of the present application is to provide an endoscope perfusion pressure monitoring system, also known as an irrigation pipeline of an endoscope system, to solve the problems in the prior art, to achieve double-insurance constant-pressure water perfusion through perfusion pressure measurement and cavity pressure measurement, to achieve constant-pressure water perfusion, and to reduce the risk of surgery.

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0027] Referring to the drawings, the present application comprises: a base 11, the base 11 is provided with a peristaltic pump 31, an irrigation container 12 (a saline bag) is connected to the peristaltic pump 31 through a pipeline 19, the pipeline 19 connected to the irrigation container 12 extends outside the peristaltic pump 31 after penetrating the end of the peristaltic pump 31, the pipeline 19 part on the peristaltic pump 31 is clamped on the peristaltic pump 31, and the end of the pipeline 19 led out after the peristaltic pump 31 is connected to a tee joint 15; the other end of the tee joint 15 is connected to an endoscope 13 through another pipeline 19, and the remaining end of the tee joint 15 is connected to a perfusion pressure measurement joint 22 on the base 11 through a perfusion pressure measurement bottle 61; the irrigation container 12, the perfusion pressure measurement joint 22 and the endoscope 13 are communicated with each other through the tee joint 15. The perfusion pressure measurement bottle 61 detects the pressure of the perfusion water inlet pipeline, and the perfusion pressure measurement joint 22 (through a pressure sensor 26) is used to monitor the perfusion water inlet pressure of the peristaltic pump 31.

[0028] The perfusion pressure measurement joint 22 is provided on the panel of the base 11, the base 11 is provided with a circuit board 25, the circuit board 25 is provided with a pressure sensor 26, and the perfusion pressure measurement joint 22 is in conductive connection with the pressure sensor 26 on the circuit board 25.

[0029] In one embodiment, the panel of the base 11 is provided with a cavity pressure measurement interface 23, the base 11 is provided with a circuit board 25, the cavity pressure measurement interface 23 is in conductive connection with one of the pressure sensors 26 on the circuit board 25; the cavity pressure measurement interface 23 is provided with a cavity pressure measurement line 24, the cavity pressure measurement line 24 is connected to the cavity pressure measurement interface 23 through a pressure measurement plug 27 at the end, and the pressure measurement plug 27 is inserted into the cavity pressure measurement interface 23; one 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 in conductive connection with one of the pressure sensors 26 on the circuit board 25.

[0030] In one embodiment, the guide sheath 51 is provided with a sheath tube 52 extending forward, and the rear part (insertion end) of the guide sheath 51 is provided with a pressure measuring cavity 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 arranged in the wall of the sheath tube 52, and the front end (opening) of the pressure measuring PI tube 53 is arranged on the side wall of the end of the sheath tube 52, that is, the front end (opening) 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 cavity 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 cavity tube 54, and the pressure measuring PI tube 53 is connected with the pressure measuring cavity tube 54.

[0031] In one embodiment, the joint of the cavity pressure measuring line 24 away from the pressure measuring plug 27 is arranged in the pressure measuring cavity tube 54 of the guide sheath 51.

[0032] The cavity pressure measuring interface 23 is a data interface of the cavity pressure measuring line 24, and can adopt a Luer female head; the pressure measuring plug 27 at the end of the cavity pressure measuring line 24 can adopt a Luer male head, and the cavity pressure measuring interface 23 and the pressure measuring plug 27 are matched.

[0033] The pressure in the renal pelvis is connected to the pressure sensor 26 on the circuit board 25 through the pressure measuring PI tube 53 (capillary pressure measuring tube) in the guide sheath 51, the pressure in the renal pelvis is detected by the pressure measuring PI tube 53 (cavity pressure measurement), and the pressure is collected in real time by the pressure sensor 26 (pressure sensor) on the circuit board 25; when the pressure is greater than the set pressure, the peristaltic pump 31 stops or slows down to control the cavity pressure within a safe range.

[0034] In one embodiment, the perfusion pressure measuring bottle 61 comprises a balloon bottle 62, one end of the balloon bottle 62 is provided with a pressure receiving joint 63, the end of the balloon bottle 62 away from the pressure receiving joint 63 is a threaded end 64, the threaded end 64 is an open interface end; a pressure transmitting joint 65 is arranged on the threaded end 64, one end of the pressure transmitting joint 65 close to the threaded end 64 is provided with a pressure disc 66, one side of the pressure disc 66 away from the pressure transmitting joint 65 is provided with a protruding sealing ring seat 67, an inflated gas bag 69 (latex gas bag) is sleeved on the pressure disc 66, and the gas bag 69 is sleeved on the pressure disc 66 after covering the sealing ring seat 67; the gas bag 69 is arranged in the cavity of the balloon bottle 62.

[0035] In one embodiment, as shown in FIG. 1, one end of the perfusion pressure measuring bottle 61 is connected with the three-way joint 15 through the pressure receiving joint 63, and the other end of the perfusion pressure measuring bottle 61 is connected with the perfusion pressure measuring joint 22 through the pressure transmitting joint 65. The perfusion pressure measuring bottle 61 detects the perfusion pressure of the endoscope 13, the peristaltic pump 31 controls the flow, and the perfusion pressure is monitored and controlled through the perfusion pressure measuring bottle 61, and the output pressure and flow are controlled.

[0036] The peristaltic pump 31 perfuses water into the water outlet conduit (pipe 19), and the water enters the endoscope 13 (flexible scope) and reaches the renal pelvis. The waste liquid in the renal pelvis is connected to the waste liquid bottle by the negative pressure suction pipe through the negative pressure connection pipe 55 of the guide sheath 51, and the sheath pipe 52 wall of the guide sheath 51 is provided with a pressure measuring PI pipe 53 (capillary pressure measuring pipe). The pressure measuring PI pipe 53 (cavity pressure measuring) is connected to the device through the pressure measuring connection pipe 54, and the pressure measuring PI pipe 53 is transmitted to the pressure sensor 26 on the circuit board 25 of the machine base 11. The cavity pressure measuring sensing data is displayed on the display screen in real time, and the cavity pressure is compared and monitored.

[0037] In one embodiment, referring to FIG. 4, the sealing ring seat 67 is inserted into the threaded end 64, and the sealing ring seat 67 is tightly matched with the threaded end 64. The inflated balloon 69 sleeved on the sealing ring seat 67 is arranged in the cavity of the balloon bottle 62, and the pressure plate 66 covers the threaded end 64, and the pressure plate 66 is tightly arranged with the threaded end 64. The screw cap 68 is sleeved on the pressure transmission connector 65, and the screw cap 68 is threadedly connected with the threaded end 64. The screw cap 68 locks the pressure transmission connector 65 (pressure plate 66) on the threaded end 64 of the balloon bottle 62. The pressure transmission connector 65 is in conductive connection with the perfusion pressure measuring connector 22.

[0038] The sealing ring seat 67 is provided with a plurality of anti-falling convex circles on the outer wall, and the balloon 69 is wrapped on the anti-falling convex circles 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 transmission connector 65, the pressure plate 66 and the sealing ring seat 67 are integrally formed.

[0039] The perfusion pressure measuring bottle 61 detects the pressure of the perfusion water inlet pipeline, and the perfusion pressure measuring connector 22 (through the pressure sensor 26) is used to monitor the perfusion water pressure of the peristaltic pump 31 (perfusion pump).

[0040] In one embodiment, referring to FIG. 3, 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 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. The pressure plate 66 is tightly arranged at the end of the threaded end 64.

[0041] The two sides of the peristaltic pump 31 are respectively provided with symmetrical pipe clamps 32, which clamp the pipe 19 on the peristaltic pump 31; the pipe clamp 32 is provided with a nut 34, and the lower surface of the pipe clamp 32 is provided with an adjusting screw 33 matched with the nut 34; the adjusting screw 33 can adjust the up-down displacement of the pipe clamp 32; the outer side surface of the pipe clamp 32 is provided with an indication mark 35. The adjusting screw 33 allows the pipe clamp 32 to clamp different pipe diameters of the pipe 19, and the indication mark 35 is marked with the positions of different pipe diameters of the pipe 19; the adjusting screw 33 can also finely adjust the clamping degree of the clamped pipe 19.

[0042] The peristaltic pump 31 clamps the pump part of the flushing pipeline (the pipe 19), the peristaltic pump 31 perfuses water into the water outlet conduit (the pipe 19), the water is perfused into the endoscope 13 (a flexible scope), the endoscope 13 is inserted into the renal pelvis, the perfusion pressure on the endoscope 13 is detected by the perfusion pressure bottle 61, the flow control is performed by the peristaltic pump 31, the perfusion pressure is monitored and controlled by the perfusion pressure bottle 61, and the output pressure and flow control are performed.

[0043] The perfusion pressure on the endoscope 13 is detected by the perfusion pressure bottle 61, the flow control is performed by the peristaltic pump 31, the perfusion pressure is monitored and controlled by the perfusion pressure bottle 61, and the output pressure and flow control are performed.

[0044] The perfusion pressure bottle 61 performs water perfusion pressure detection (perfusion water pressure detection), the pressure detection port is on the pipe 19 of the water outlet conduit, the pipe 19 of the water outlet conduit is provided with a three-way joint 15, when the peristaltic pump 31 perfuses liquid into the water outlet conduit (the pipe 19), one joint of the three-way joint 15 on the pipe 19 of the water outlet conduit is connected to the perfusion pressure bottle 61, and the other joint of the three-way joint 15 is connected to the endoscope 13 (a flexible scope); when the endoscope 13 (a flexible scope) is blocked or the pressure is too high, the perfusion pressure detection can be sensed, and the peristaltic pump 31 is automatically adjusted or closed.

[0045] The balloon bottle 62 of the perfusion pressure bottle 61 has a gas bag 69 (a latex gas bag), which needs to be kept in an inflated state. One aspect of the function of the gas bag 69 is that after the liquid enters the balloon bottle 62, the perfusion pressure is detected by squeezing the gas bag 69; at the same time, the gas bag 69 also plays a role of isolation, which isolates water from the equipment, and the gas bag 69 in the balloon bottle 62 converts hydraulic pressure into air pressure; the perfusion pressure bottle 61 realizes the pressure detection of the flushing pipeline, displays the real-time pressure value, and when the perfusion pressure detection is greater than the set pressure, the peristaltic pump 31 will stop or slow down to maintain the set pressure.

[0046] The present application adopts double insurance pressure measuring structure, detects perfusion pressure on the endoscope 13 through perfusion pressure measuring bottle 61, controls flow of peristaltic pump 31, perfusion pressure measuring bottle 61 monitors and controls perfusion pressure, and detects pressure in the renal pelvis cavity (cavity pressure measurement) through pressure measuring PI tube 53 (capillary pressure measuring tube) in guide sheath 51, so as to control cavity pressure in a safe range.

[0047] The balloon 69 in the balloon bottle 62 of the present application plays a role in transferring perfusion pressure after liquid enters the balloon bottle 62, and also plays a role in isolation, isolating water from the equipment, monitoring and controlling perfusion pressure by perfusion pressure measuring bottle 61, output pressure and flow control, constant pressure water filling, and realizing bacteria-resistant pressure measuring flushing pipeline. The present application can reduce surgical risk and improve treatment effect through real-time comparison and monitoring.

[0048] The above embodiments only express several embodiments of the present application, which are described in detail, and it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified by the above-mentioned teaching or related technical or knowledge within the scope of the invention concept described herein, and therefore it should not be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and the modifications and changes made by the person skilled in the art do not deviate from the spirit and scope of the present application, and these all belong to the protection scope of the appended claims of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An endoscope irrigation pressure monitoring system, comprising: The base (11) is provided with a peristaltic pump (31), and a flushing container (12) is connected to the peristaltic pump (31) through a pipeline (19); characterized in that the pipeline (19) connected to the flushing container (12) extends outside the peristaltic pump (31) after penetrating the peristaltic pump (31), and the end of the pipeline (19) connected to the flushing container (12) after penetrating the peristaltic pump (31) is connected to a three-way joint (15); the other end of the three-way joint (15) is connected to an endoscope (13) through another pipeline (19), and the remaining end of the three-way joint (15) is connected to a perfusion pressure joint (22) on the base (11) through a perfusion pressure bottle (61); the flushing container (12), the perfusion pressure joint (22) and the endoscope (13) are in communication with each other through the three-way joint (15), the perfusion pressure joint (22) monitors the perfusion water pressure of the peristaltic pump (31) through a pressure sensor (26), and when the perfusion pressure joint detects a pressure greater than a set pressure, the peristaltic pump (31) will stop or slow down to maintain the set pressure.

2. An endoscope irrigation pressure monitoring system according to claim 1, wherein, The perfusion pressure bottle (61) comprises a balloon bottle (62), one end of the balloon bottle (62) is provided with a pressure receiving joint (63), the end of the balloon bottle (62) away from the pressure receiving joint (63) is a threaded end (64), the threaded end (64) is an open interface end, a pressure transmission joint (65) is arranged on the threaded end (64), one end of the pressure transmission joint (65) close to the threaded end (64) is provided with a pressure disc (66), one side of the pressure disc (66) away from the pressure transmission joint (65) is provided with a protruding sealing ring seat (67), the pressure disc (66) is sleeved with an inflated air bag (69), and the air bag (69) is sleeved on the pressure disc (66) after covering the sealing ring seat (67); the air bag (69) is arranged in the cavity of the balloon bottle (62); One end of the perfusion pressure bottle (61) is connected to the three-way joint (15) through the pressure receiving joint (63), and the other end of the perfusion pressure bottle (61) is connected to the perfusion pressure joint (22) through the pressure transmission joint (65).

3. An endoscope irrigation pressure monitoring system according to claim 2, wherein, The sealing ring seat (67) is inserted into the threaded end (64) and tightly matched with the threaded end (64); the inflated air bag (69) sleeved on the sealing ring seat (67) is arranged in the cavity of the balloon bottle (62), the pressure disc (66) covers the threaded end (64), and the pressure disc (66) is tightly arranged with the threaded end (64); a screw cap (68) is sleeved on the pressure transmission joint (65), the screw cap (68) is threadedly connected with the threaded end (64), and the pressure transmission joint (65) is in conductive connection with the perfusion pressure joint (22).

4. The endoscope irrigation pressure monitoring system of claim 2, wherein, The outer wall of the sealing ring seat (67) is provided with a plurality of anti-falling convex circles, and the air bag (69) covers the anti-falling convex circles of the sealing ring seat (67); The balloon bottle (62), the pressure receiving joint (63) and the threaded end (64) are integrally formed, and the pressure transmission joint (65), the pressure disc (66) and the sealing ring seat (67) are integrally formed; The outer diameter D2 of the sealing ring seat (67) is equal to or smaller 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 matched 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 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 arranged against the end of the threaded end (64).

5. The endoscope irrigation pressure monitoring system of claim 1, wherein, The panel of the machine base (11) is provided with a cavity pressure measuring interface (23), and the machine base (11) is provided with a circuit board (25), and one of the pressure sensors (26) on the circuit board (25) is in conductive connection with the cavity pressure measuring interface (23); The cavity pressure measuring interface (23) is provided with a cavity pressure measuring line (24), and one end of the cavity pressure measuring line (24) away from the cavity pressure measuring interface (23) is connected with the guide sheath (51).

6. An endoscope irrigation pressure monitoring system according to claim 5, wherein, The cavity pressure measuring line (24) is connected with the cavity pressure measuring interface (23) through the pressure measuring plug (27) at the end, and the pressure measuring plug (27) is inserted in the cavity pressure measuring interface (23); One end of the cavity pressure measuring line (24) away from the pressure measuring plug (27) is connected with the guide sheath (51).

7. An endoscope irrigation pressure monitoring system according to claim 5, wherein, The guide sheath (51) is provided with a sheath tube (52) extending forward, and the guide sheath (51) is provided with a pressure measuring cavity tube (54) and a negative pressure connecting tube (55) at the rear part, and the pressure measuring cavity tube (54) and the negative pressure connecting tube (55) are symmetrically arranged on both sides of the rear part of the guide sheath (51); A through pressure measuring PI tube (53) is arranged in the wall of the sheath tube (52), and the front end of the pressure measuring PI tube (53) is arranged on the side wall of the sheath tube (52) away from the pressure measuring cavity tube (54); The rear end of the pressure measuring PI tube (53) extends into the pressure measuring cavity tube (54) after passing through the sheath tube (52), and the pressure measuring PI tube (53) is in through connection with the pressure measuring cavity tube (54); The joint of the cavity pressure measuring line (24) away from the pressure measuring plug (27) is arranged in the pressure measuring cavity tube (54) of the guide sheath (51).

8. The endoscope irrigation pressure monitoring system of claim 1, wherein, The pipeline (19) on the peristaltic pump (31) is partially clamped on the peristaltic pump (31), and the end of the pipeline (19) leading out after passing through the peristaltic pump (31) is connected with the three-way joint (15); The peristaltic pump (31) is provided with symmetrically arranged pipe clamping seats (32) on both sides, and the pipe clamping seats (32) clamp the pipeline (19) on the peristaltic pump (31); The pipe clamping seat (32) is provided with a nut (34), and the lower surface of the pipe clamping seat (32) is provided with an adjusting screw (33) matched with the nut (34), and the outer side surface of the pipe clamping seat (32) is provided with an indicating mark (35).

9. The endoscope irrigation pressure monitoring system of claim 1, wherein, The perfusion pressure measuring bottle (61) comprises 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), the threaded end (64) is an open interface end; the threaded end (64) is provided with a pressure transmission connector (65) on the upper surface, one end of the pressure transmission connector (65) close to the threaded end (64) is provided with a pressure disc (66), one side of the pressure disc (66) away from the pressure transmission connector (65) is provided with a protruding sealing ring seat (67), the pressure disc (66) is provided with an inflated state air bag (69), the air bag (69) is sleeved on the pressure disc (66) after covering the sealing ring seat (67); the air bag (69) is arranged in the cavity of the balloon bottle (62); One end of the perfusion pressure measuring bottle (61) is connected with the three-way connector (15) through the pressure receiving connector (63), the other end of the perfusion pressure measuring bottle (61) is connected with the perfusion pressure measuring connector (22) through the pressure transmission connector (65); The panel of the machine base (11) is provided with a cavity pressure measuring interface (23), the machine base (11) is provided with a circuit board (25), and one of the pressure sensors (26) on the circuit board (25) is in conductive connection with the cavity pressure measuring interface (23); the cavity pressure measuring interface (23) is provided with a cavity pressure measuring line (24), one end of the cavity pressure measuring line (24) away from the cavity pressure measuring interface (23) is connected with the guide sheath (51).

10. An endoscope irrigation pressure monitoring system according to claim 9, wherein, The sealing ring seat (67) is inserted into the threaded end (64), and the sealing ring seat (67) is in close fit with the threaded end (64); the air bag (69) in the inflated state, which is sleeved on the sealing ring seat (67), is arranged in the cavity of the balloon bottle (62), the pressure disc (66) covers the threaded end (64), and the pressure disc (66) is in close fit with the threaded end (64); the pressure transmission connector (65) is sleeved with a screw cap (68), the screw cap (68) is in threaded connection with the threaded end (64), and the pressure transmission connector (65) is in conductive connection with the perfusion pressure measuring connector (22).

11. An endoscope irrigation pressure monitoring system according to claim 9, wherein, The outer wall of the sealing ring seat (67) is provided with a plurality of anti-falling convex circles, and the air bag (69) covers the anti-falling convex circles 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 transmission connector (65), the pressure disc (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) is in close fit and matching with the inner diameter D4 of the threaded end (64); The outer diameter D1 of the pressure disc (66) is greater than the outer diameter D2 of the sealing ring seat (67); The outer diameter D1 of the pressure disc (66) is less than the outer diameter D3 of the threaded end (64), the outer diameter D1 of the pressure disc (66) is greater than the inner diameter D4 of the threaded end (64), and the pressure disc (66) is in close fit with the end of the threaded end (64).

12. An endoscope irrigation pressure monitoring system according to claim 9, wherein, The cavity pressure measuring line (24) is connected with the cavity pressure measuring interface (23) through the pressure measuring plug (27) at one end, the pressure measuring plug (27) is inserted into the cavity pressure measuring interface (23); one end of the cavity pressure measuring line (24) away from the pressure measuring plug (27) is connected with the guide sheath (51).

13. An endoscope irrigation pressure monitoring system according to claim 12, wherein, The guide sheath (51) is provided with a sheath tube (52) extending forward, and the rear part of the guide sheath (51) is provided with a pressure measuring cavity 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 arranged in the wall of the sheath tube (52), and 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 cavity 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 cavity tube (54), and the pressure measuring PI tube (53) is connected with the pressure measuring cavity tube (54); the joint of the cavity pressure measuring line (24) away from the pressure measuring plug (27) is arranged in the pressure measuring cavity tube (54) of the guide sheath (51).

14. The endoscope irrigation pressure monitoring system of claim 9, wherein, The pipeline (19) on the peristaltic pump (31) is partially clamped on the peristaltic pump (31), and the end of the pipeline (19) led out after the flushing container (12) passes through the peristaltic pump (31) is connected with the tee joint (15); The peristaltic pump (31) is provided with symmetrically arranged clamp seats (32) on both sides, and the clamp seats (32) clamp the pipeline (19) on the peristaltic pump (31); the clamp seat (32) is provided with a nut (34), the lower surface of the clamp seat (32) is provided with an adjusting screw (33) matched with the nut (34), and the outward side surface of the clamp seat (32) is provided with an indication mark (35).

15. The endoscope irrigation pressure monitoring system of claim 9, wherein, The panel of the base (11) is provided with a perfusion pressure measuring joint (22), the base (11) is provided with a circuit board (25), the circuit board (25) is provided with a pressure sensor (26), and the perfusion pressure measuring joint (22) is in conductive connection with the pressure sensor (26) on the circuit board (25).

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