Endoscope system

Abstract

The utility model relates to an endoscope system. The endoscope system comprises a control host; the liquid injection flow control mechanism comprises a driving unit and a pressure control valve, the driving unit is electrically connected with the control host, and the driving unit is connected with the pressure control valve and used for controlling the opening degree of the pressure control valve; the endoscope comprises a tip and a handle, the tip is provided with a pressure measuring device, the tip is provided with a liquid injection port and a liquid return port, the pressure measuring device is electrically connected with the control host, the handle is provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with the liquid injection port through a liquid path, and the liquid return port is communicated with the liquid outlet through a liquid path; one end of the filling pipeline is communicated with the liquid inlet, and the other end of the filling pipeline is used for being communicated with filling equipment; one end of the water return pipeline is communicated with the liquid outlet, and the other end of the water return pipeline is used for being communicated with negative pressure equipment; wherein the pressure control valve is arranged in the filling pipeline and / or the water return pipeline.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an endoscope system. Background Art

[0002] An endoscope is a commonly used medical device. It enters the patient's internal organs through natural orifices or surgical incisions, allowing the doctor to directly observe the pathological conditions in the affected area. During ureteroscopic surgery, flushing the body cavity with saline maintains a clear field of view, expedites the procedure, avoids damage to surrounding tissues, and expands the cavity to maintain the required space for surgery.

[0003] Each organ in the human body has its own physiological pressure, and therefore has specific requirements for the volume of saline perfusion. Excessive infusion can easily lead to increased intracavitary pressure. Once the limit pressure is exceeded, bacteria and toxins may be rapidly absorbed into the body along with the perfusate, leading to complications such as sepsis and water intoxication. For example, clinically, patients have experienced severe consequences such as high fever, sepsis, renal pelvic rupture, and even death after ureteroscopic surgery, one of the main reasons for this is excessive renal pelvic pressure. Furthermore, according to clinical feedback, both excessively low and high perfusate temperatures can affect patients' vital signs. For example, when the perfusate temperature is too low, it removes a large amount of heat, lowering body temperature and increasing oxygen consumption, leading to adverse reactions such as hypothermia, increased heart rate, postoperative chills, irritability, and arrhythmias. On the other hand, when the perfusate temperature is too high, the patient will feel warm, and capillary blood flow in the renal pelvis will accelerate, increasing electrolyte loss from the perfusate and increasing the risk of electrolyte imbalance. Therefore, it is necessary to detect the pressure and temperature of the perfusion fluid in real time during surgery to avoid the above problems.

[0004] However, in traditional technologies, the pressure and temperature of the perfusion fluid are generally measured and adjusted based on the doctor's clinical experience combined with patient feedback, or using separately configured measuring equipment. This has problems such as cumbersome and inconvenient operation, time-consuming and labor-intensive, low reliability, and low measurement accuracy. Utility Model Content

[0005] Based on this, it is necessary to provide an endoscope system to address the problems of inconvenient operation, low reliability and low accuracy in measuring and adjusting the pressure and temperature of the perfusion fluid.

[0006] The present application proposes an endoscope system, which comprises:

[0007] Control host;

[0008] a liquid injection flow control mechanism, the liquid injection flow control mechanism comprising a drive unit and a pressure control valve, the drive unit being electrically connected to the control host, the drive unit being connected to the pressure control valve and being used to control the opening of the pressure control valve;

[0009] An endoscope comprising a tip and a handle, wherein the tip is provided with a pressure measuring device and has a liquid injection port and a liquid return port, the pressure measuring device is electrically connected to the control host, and the handle is provided with a liquid inlet and a liquid outlet, the liquid inlet is in fluid communication with the liquid injection port, and the liquid return port is in fluid communication with the liquid outlet;

[0010] a perfusion pipeline, one end of which is connected to the liquid inlet, and the other end of which is used to communicate with a perfusion device; and

[0011] a return water pipeline, one end of which is connected to the liquid outlet, and the other end of which is connected to the negative pressure device;

[0012] Wherein, the pressure control valve is arranged in the perfusion pipeline and / or the return pipeline.

[0013] When the endoscope system of this solution is used, for example, in ureteroscopic surgery, the tip is first implanted at the lesion site in the patient's body. Immediately thereafter, the perfusion device is activated, and the perfusion fluid flows sequentially through the perfusion pipeline, the fluid inlet, and the fluid injection port into the body cavity to participate in the treatment. Subsequently, under the negative pressure suction force of the negative pressure device, the perfusion fluid, which has completed the treatment, can flow out of the body cavity through the return port and flow to the fluid outlet, and then be discharged through the return pipe. During this process, a pressure measuring device pre-installed on the tip and located in the body cavity detects the cavity pressure in real time and transmits the cavity pressure data (which may be too high or too low) to the control host. The control host then outputs a command to the drive unit of the liquid injection flow control mechanism, which then drives the pressure control valve to adjust the valve opening, thereby changing the perfusion flow rate of the normal temperature (20°C to 25°C) perfusion fluid in the perfusion pipeline, thereby ultimately achieving the purpose of controlling the amount of liquid injected into the body cavity and realizing automatic pressure and temperature control. Compared with the existing technology, this solution only needs to integrate a pressure measuring device on the tip. The pressure measuring device is implanted into the lesion site together with the tip, so as to realize synchronous real-time detection of cavity pressure during surgery, and then provide accurate data support for the opening adjustment of the pressure control valve by feedback of the cavity pressure value, and then realize the effect of automatic control of the perfusion fluid pressure and temperature by controlling the injection volume. The measurement and adjustment are highly automated, the measurement results are highly accurate, the process is convenient and efficient, and it is highly practical.

[0014] The technical solution of this application is further described below:

[0015] In one embodiment, the endoscope system also includes a temperature regulator, and a temperature sensor is also provided on the tip. The temperature sensor and the temperature regulator are electrically connected to the control host respectively, and the temperature regulator and the pressure control valve are both provided in the perfusion pipeline.

[0016] In one embodiment, the endoscope system also includes a temperature regulator, and a temperature sensor is also provided on the tip. The temperature sensor and the temperature regulator are electrically connected to the control host respectively. When the temperature regulator is provided in the perfusion pipeline, the pressure control valve is provided in the return water pipeline.

[0017] In one embodiment, the endoscope system also includes a temperature regulator, and a temperature sensor is also provided on the tip. The temperature sensor and the temperature regulator are electrically connected to the control host respectively. When the temperature regulator is provided in the perfusion pipeline, the pressure control valve is provided in the perfusion pipeline and the return water pipeline.

[0018] In one embodiment, the endoscope system further includes a connecting cable, which includes a first connecting part and a second connecting part, the first connecting part having a male adapter, the second connecting part having a female adapter, the male adapter being signal-connected to the female adapter, the first connecting part being arranged on the handle and being electrically connected to the temperature sensor and the pressure measuring device, the second connecting part being electrically connected to the control host, and the driving unit being electrically connected to the male adapter or the female adapter.

[0019] In one embodiment, the tip head includes a tip shell, the tip shell is provided with a mounting hole, the pressure measuring device includes a carrier, a baffle cover and a pressure measuring sensor, the carrier is inserted into the mounting hole, a receiving cavity is formed inside the carrier, the end of the carrier is also provided with an opening connected to the receiving cavity, the side wall of the carrier is also provided with a first flow hole and a second flow hole, the first flow hole is connected to the second flow hole through the receiving cavity, the baffle cover is installed at the opening, the pressure measuring sensor is installed in the receiving cavity, and the baffle cover, the first flow hole and the second flow hole are all exposed to the tip shell.

[0020] In one embodiment, the end surface of the front end shell is recessed to form a step, the mounting hole is formed on the bottom wall of the step, the side walls of the step are arranged around the outside of the portion of the pressure measuring device extending out of the mounting hole, and the side walls of the step are arranged to avoid and cooperate with the first flow hole and the second flow hole.

[0021] In one embodiment, the tip head also includes a camera assembly and a lighting assembly, and the tip shell is also provided with a first receiving hole and a second receiving hole. The camera assembly is arranged in the first receiving hole, and the lighting assembly is arranged in the second receiving hole and coordinated with the camera assembly.

[0022] In one embodiment, the tip further includes a water injection pipe and a composite functional pipe, both of which are inserted into the endoscope, one end of the water injection pipe is disposed in the liquid injection port, and the other end of the water injection pipe is connected to the liquid inlet, one end of the composite functional pipe is disposed in the liquid return port, and the other end of the composite functional pipe is connected to the liquid outlet;

[0023] The composite functional pipe is used for passing through stone crushing equipment, water return and stone removal.

[0024] In one embodiment, a gap is formed between the inner wall of the composite functional pipe and the outer wall of the stone crushing device, and the gap is used for water return and stone discharge;

[0025] Alternatively, the lithotripsy device can be completely withdrawn from the composite functional tube, so that the lumen of the composite functional tube forms a discharge channel, and the discharge channel is used for returning water and discharging stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is a simplified structural diagram of the endoscope system according to the first embodiment of the present application.

[0029] Figure 2 This is a simplified structural diagram of an endoscope system according to the second embodiment of the present application.

[0030] Figure 3 This is a simplified structural diagram of an endoscope system according to the third embodiment of the present application.

[0031] Figure 4 This is a simplified structural diagram of an endoscope system according to the fourth embodiment of the present application.

[0032] Figure 5This is a simplified structural diagram of an endoscope system according to the fifth embodiment of the present application.

[0033] Figure 6 This is a simplified structural diagram of an endoscope system according to the sixth embodiment of the present application.

[0034] Figure 7 This is a schematic diagram of the structure of a tip with a liquid injection port on one side.

[0035] Figure 8 This is a schematic diagram of the structure of a tip with a liquid injection port on each side.

[0036] Figure 9 A schematic diagram of the structure of a tip with two liquid injection ports on the end face.

[0037] Figure 10 Schematic diagram of the structure of a pressure measuring device according to an embodiment.

[0038] Figure 11 This is a structural diagram of the pressure measuring device installed on the front end shell.

[0039] Description of reference numerals:

[0040] 100. Endoscope system; 10. Control host; 20. Pressure control valve; 30. Endoscope; 31. Tip; 31a. Tip shell; 311. Liquid injection port; 312. Liquid return port; 313. Mounting hole; 314. Step position; 314a. Bottom wall; 314b. Side wall; 315. Camera assembly; 316. Lighting assembly; 32. Pressure measuring device; 321. Carrier; 321a. First flow hole; 321b. Second flow hole; 322. Baffle cover; 323. Pressure sensor; 33. Liquid inlet; 34. Liquid outlet; 40. Perfusion pipeline; 50. Return water pipeline; 60. Temperature regulator; 200. Perfusion equipment; 300. Negative pressure equipment. DETAILED DESCRIPTION

[0041] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0042] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0043] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0044] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0045] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0046] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0047] See Figure 1 , which is a schematic diagram of the structure of an endoscope system 100 shown in this application, includes a control host 10, a liquid injection and flow control mechanism, an endoscope 30, an irrigation pipeline 40, and a return water pipeline 50. The liquid injection and flow control mechanism includes a drive unit (not shown) and a pressure control valve 20. The drive unit is electrically connected to the control host 10, and the drive unit is connected to the pressure control valve 20 and is used to control the opening of the pressure control valve 20.

[0048] It can be understood that when the opening of the pressure control valve 20 becomes larger, the perfusion liquid flow rate through the pressure control valve 20 per unit time increases; when the opening of the pressure control valve 20 becomes smaller, the perfusion liquid flow rate through the pressure control valve 20 per unit time decreases.

[0049] For example, the pressure control valve 20 may be any one of a ball valve, a butterfly valve, etc. The driving unit may be a driving device that uses a motor, a cylinder, an electric push rod, etc. as a power source and can output a linear or arc driving force.

[0050] The endoscope 30 includes a tip 31 and a handle. A pressure measuring device 32 is provided on the tip 31, and the tip 31 is provided with a liquid injection port 311 and a liquid return port 312. The pressure measuring device 32 is electrically connected to the control host 10. The handle is provided with a liquid inlet 33 and a liquid outlet 34. The liquid inlet 33 is fluidically connected to the liquid injection port 311, and the liquid return port 312 is fluidically connected to the liquid outlet 34; one end of the perfusion line 40 is connected to the liquid inlet 33, and the other end of the perfusion line 40 is used to be connected to the perfusion device 200; one end of the return water line 50 is connected to the liquid outlet 34, and the other end of the return water line 50 is used to be connected to the negative pressure device 300; wherein, the pressure control valve 20 is arranged in the perfusion line 40 and / or the return water line 50.

[0051] Specifically, Figure 1 FIG. 1 is a schematic diagram showing a pressure control valve 20 installed in an irrigation pipeline 40 . Figure 2 FIG. 1 is a schematic diagram showing a pressure control valve 20 installed in a return water pipeline 50 . Figure 3 The schematic diagram shows that the pressure control valve 20 is installed in both the filling pipeline 40 and the return pipeline 50 .

[0052] In summary, the implementation of the technical solution of this embodiment will achieve the following beneficial effects: when the endoscope system 100 of this solution is used in, for example, ureteroscopic surgery, the tip 31 is first implanted into the lesion site in the patient's body, and then the perfusion device 200 is started, and the perfusion liquid flows through the perfusion pipeline 40, the liquid inlet 33 and the liquid injection port 311 in sequence and flows into the body cavity to participate in the treatment; thereafter, under the action of the negative pressure suction force of the negative pressure device 300, the perfusion liquid that has participated in the treatment can flow out of the body cavity from the return liquid port 312 and flow to the liquid outlet 34, and then through the return water pipeline 50 Discharge; During this process, the pressure measuring device 32 pre-installed on the front end 31 and located in the body cavity detects the cavity pressure in the body cavity in real time, thereby being able to transmit the cavity pressure data (which may be too large or too small) to the control host 10. The control host 10 then outputs an instruction to the drive unit of the injection flow control mechanism. The drive unit then drives the pressure control valve 20 to work to adjust the opening of the pressure control valve 20, thereby changing the injection flow of the normal temperature (20℃~25℃) perfusion fluid in the perfusion pipeline, thereby ultimately achieving the purpose of controlling the amount of fluid injected into the body cavity and realizing automatic pressure and temperature control.

[0053] It is easy to understand that when the amount of perfusion fluid injected into the body cavity increases, the cavity pressure of the body cavity will increase, and when the amount of perfusion fluid injected into the body cavity decreases, the cavity pressure of the body cavity will decrease. Therefore, adjusting the perfusion flow rate through the pressure control valve 20 can achieve the effect of adjusting the perfusion fluid pressure in the body cavity.

[0054] In addition, the temperature in the patient's body is generally between 36.9℃ and 37.9℃, while the temperature of the normothermic perfusion fluid used in surgery is generally 20℃~25℃. Therefore, when the perfusion fluid is injected into the body cavity, the temperature will rise appropriately; therefore, by controlling the perfusion flow rate of the normothermic perfusion fluid flowing into the body cavity, the mixed flow rate of the normothermic perfusion fluid and the perfusion fluid after temperature rise can be adjusted, thereby achieving the effect of regulating the temperature of the perfusion fluid in the body cavity.

[0055] Compared with the existing technology, this solution only needs to integrate a pressure measuring device 32 on the tip 31. The pressure measuring device 32 is implanted into the lesion site together with the tip 31, so as to realize synchronous real-time detection of cavity pressure during surgery, and then provide accurate data support for the opening adjustment of the pressure control valve 20 by feedback of the cavity pressure value, and then realize the effect of automatic control of the perfusion fluid pressure and temperature by controlling the injection volume. The measurement and adjustment are highly automated, the measurement results are highly accurate, the process is convenient and efficient, and the practicability is strong.

[0056] In addition, in order to further accurately measure the temperature of the perfusate in the body cavity and then accurately control the perfusion flow of the perfusate injected into the body cavity, thereby ensuring that the temperature of the perfusate in the body cavity is maintained within a reasonable range, the present application adopts a method of directly setting a temperature sensor to directly measure the temperature of the perfusate in the body cavity, and then heating or cooling the perfusate injected into the body cavity through the temperature regulator 60, so that the high-temperature perfusate and the low-temperature perfusate can be mixed in the body cavity, thereby realizing automatic, dynamic and precise control of the perfusate temperature, thereby effectively solving the problem that if the perfusate temperature is too low, a large amount of heat will be carried away, causing the body temperature to drop, resulting in increased oxygen consumption of the body, causing adverse reactions such as hypothermia, increased heart rate, postoperative chills, irritability, and arrhythmia; if the perfusate temperature is too high, the patient will feel feverish, and the capillary blood flow velocity in the renal pelvis will accelerate, and the loss of electrolytes from the perfusate will increase, resulting in an increased risk of electrolyte imbalance in the patient's body.

[0057] Please continue reading Figures 4 to 6 Specifically, the arrangement of the temperature regulator 60 and the pressure control valve 20 can be various. For example, in an optional embodiment, the endoscope system 100 further includes a temperature regulator 60, and the tip 31 is further provided with a temperature sensor. The temperature sensor and the temperature regulator 60 are respectively electrically connected to the control host 10, and the temperature regulator 60 and the pressure control valve 20 are both provided in the perfusion line 40.

[0058] Alternatively, as an alternative to the above embodiment, the endoscope system 100 also includes a temperature regulator 60, and a temperature sensor is also provided on the tip 31. The temperature sensor and the temperature regulator 60 are respectively electrically connected to the control host 10. When the temperature regulator 60 is set in the perfusion pipeline 40, the pressure control valve 20 is set in the return water pipeline 50.

[0059] Alternatively, as an alternative to the above two embodiments, the endoscope system 100 also includes a temperature regulator 60, and a temperature sensor is also provided on the front end 31. The temperature sensor and the temperature regulator 60 are respectively electrically connected to the control host 10. When the temperature regulator 60 is provided in the perfusion pipeline 40, a pressure control valve 20 is provided in the perfusion pipeline 40 and the return water pipeline 50.

[0060] In the above three implementation schemes, the pressure control valve 20 cooperates with the pressure sensor 323 and the temperature regulator 60 cooperates with the temperature sensor to accurately measure the real-time pressure and temperature of the perfusion fluid in the body cavity at the same time. The control host 10 can better control the perfusion flow rate based on the real-time pressure and temperature measurement results, thereby achieving precise regulation of the pressure and temperature of the perfusion fluid in the body cavity.

[0061] In the present application, the endoscope 30 includes a handle, an insertion tube, a snake, and a tip 31 that are sequentially connected.

[0062] In one embodiment, the endoscope system 100 further includes a connecting cable, which includes a first connecting portion and a second connecting portion. The first connecting portion has a male connector, and the second connecting portion has a female connector. The male connector and the female connector are signal-connected. The first connecting portion is provided on the handle and is electrically connected to the temperature sensor and the pressure measuring device 32. The second connecting portion is electrically connected to the control host 10. The drive unit is electrically connected to the male connector or the female connector. In this way, the temperature sensor and the pressure measuring device 32 can be quickly connected or disconnected from the control host 10 via the connecting cable, thereby improving the convenience and effectiveness of the connection. By connecting the drive unit to the control host 10 via the male connector or the female connector, the drive unit and the endoscope 30 share a connecting cable, reducing the number of cables used, helping to simplify the overall structure of the endoscope system 100, and reducing manufacturing costs and wiring difficulty.

[0063] Please continue reading Figures 7 to 11 In one embodiment, the tip head 31 includes a tip shell 31a, which is provided with a mounting hole 313. The pressure measuring device 32 includes a carrier 321, a baffle cover 322 and a pressure sensor 323. The carrier 321 is inserted into the mounting hole 313. A receiving cavity is formed inside the carrier 321. An opening communicating with the receiving cavity is also provided at the end of the carrier 321. A first flow hole 321a and a second flow hole 321b are also provided on the side wall 314b of the carrier 321. The first flow hole 321a is communicated with the second flow hole 321b through the receiving cavity. The baffle cover 322 is installed at the opening. The pressure sensor 323 is installed in the receiving cavity. The baffle cover 322, the first flow hole 321a and the second flow hole 321b are all exposed to the tip shell 31a.

[0064] The endoscope system 100 of the present application is used in a stone surgery scenario. The lithotripsy device is implanted into the lesion site in the patient's body via the tip 31. When lithotripsy treatment begins, the pressure sensor 323 is mounted within the housing cavity of the carrier 321. A baffle 322 is installed at the opening facing the laser lithotripsy treatment area. Therefore, the laser shock wave cannot pass through the opening and directly impact the pressure sensor 323. This effectively ensures the accuracy of the pressure sensor 323's detection results and prevents damage to the pressure sensor 323, which would otherwise reduce its service life. Furthermore, the first and second flow holes 321a, 321b pre-set on the carrier 321 allow the fluid in the lesion cavity to flow through the housing cavity normally, allowing the pressure sensor 323 to properly contact the fluid and complete normal cavity pressure detection. This allows timely intervention when abnormally elevated cavity pressure is detected, preventing secondary injury to the patient, alleviating the patient's discomfort, and enhancing the surgical experience of the endoscope 30.

[0065] Please continue reading Figures 10 and 11Furthermore, a stepped portion 314 is recessed on the end surface of the front end housing 31a. The mounting hole 313 is formed in the bottom wall 314a of the stepped portion 314. The side walls 314b of the stepped portion 314 surround the portion of the pressure measuring device 32 extending out of the mounting hole 313. The side walls 314b of the stepped portion 314 are arranged to avoid and cooperate with the first flow hole 321a and the second flow hole 321b. That is, after the mounting hole 313 is provided on the bottom wall 314a of the stepped portion 314 and the pressure measuring device 32 is inserted into the mounting hole 313, the end of the carrier 321, which is mounted with the blocking cover 322, extends out of the mounting hole 313. The blocking cover 322 can be positioned toward the tip end of the front end housing 31a, directly facing the area of the lesion receiving laser lithotripsy, thereby directly blocking the majority of the shock waves. The sidewall 314b of the step 314 surrounds the exposed first and second flow holes 321a, 321b, providing some protection and reducing the impact of shock waves on the performance of the pressure sensor 323. The sidewall 314b of the step avoids and cooperates with the first and second flow holes 321a, 321b, so as not to block the smooth flow of liquid into and out of the first flow hole 321a, the accommodating cavity, and the second flow hole 321b, ensuring that the pressure sensor 323 can properly measure the cavity pressure.

[0066] In another embodiment, the tip 31 further includes a camera assembly 315 and a lighting assembly 316. The tip housing 31a further defines a first receiving hole and a second receiving hole. The camera assembly 315 is disposed within the first receiving hole, and the lighting assembly 316 is disposed within the second receiving hole and coordinated with the camera assembly 315. During endoscopic surgery, the lighting assembly 316 is used to illuminate the camera assembly 315, thereby enabling the camera assembly 315 to capture brighter and clearer image signals.

[0067] In addition, based on any of the above embodiments, the tip 31 also includes a water injection pipe and a composite functional pipe, both of which are inserted into the endoscope 30, one end of the water injection pipe is set at the liquid injection port 311, and the other end of the water injection pipe is connected to the liquid inlet 33, one end of the composite functional pipe is set at the liquid return port 312, and the other end of the composite functional pipe is connected to the liquid outlet 34; wherein, the composite functional pipe is used for inserting stone crushing equipment, returning water and removing stones.

[0068] During the operation, the lithotripsy device (such as a laser optical fiber) is passed through the interior of the composite functional tube and implanted into the lesion through the distal end 31. The lithotripsy device is used to crush the stones to form gravel; the perfusion fluid flowing in from the liquid inlet 33 reaches the liquid injection port 311 through the water injection pipe, and then flows into the body cavity through the liquid injection port 311, thereby flushing the body cavity; then the perfusion fluid carrying the gravel flows into the composite functional tube from the liquid return port 312, and is then discharged from the liquid outlet 34, thereby achieving a therapeutic effect of injecting and discharging fluid at the same time, crushing and discharging stones at the same time, greatly improving the efficiency of the operation and reducing the patient's discomfort.

[0069] Please continue reading Figures 7 to 9 According to actual needs, the liquid injection port 311 can be set only once on the side of the front shell 31a, or one can be set on each opposite side of the front shell 31a (that is, two are set in total), or two can be set at the end surface of the front shell 31a at the same time.

[0070] Furthermore, during actual surgical treatment, the stone removal methods employed may differ depending on the particle size of the broken stones. For example, in one optional embodiment, to facilitate simultaneous water discharge and stone removal, the inner diameter of the composite functional tube may be designed to be slightly larger than the outer diameter of the stone crushing device, creating a gap between the inner wall of the composite functional tube and the outer wall of the stone crushing device. This gap serves to both return water and remove stones. The smaller the gap, the smaller the size of the stone crushing device, allowing smaller stone particles to be removed through the gap. This allows for simultaneous return water and removal of small stone particles.

[0071] In another optional embodiment, if the particle size of the crushed stones after treatment by the lithotripsy device is still relatively large, the lithotripsy device can be completely removed from the composite functional tube, so that the lumen of the composite functional tube 30 becomes a discharge channel for returning water and removing stones. This discharge channel allows the perfusion fluid and large-sized crushed stones to be discharged smoothly through the larger diameter discharge channel, avoiding problems such as stone blockage and other problems that hinder stone discharge.

[0072] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An endoscope system, characterized in that: include: Control host; a liquid injection flow control mechanism, the liquid injection flow control mechanism comprising a drive unit and a pressure control valve, the drive unit being electrically connected to the control host, the drive unit being connected to the pressure control valve and being used to control the opening of the pressure control valve; An endoscope comprising a tip and a handle, wherein the tip is provided with a pressure measuring device and has a liquid injection port and a liquid return port, the pressure measuring device is electrically connected to the control host, and the handle is provided with a liquid inlet and a liquid outlet, the liquid inlet is in fluid communication with the liquid injection port, and the liquid return port is in fluid communication with the liquid outlet; a perfusion pipeline, one end of which is connected to the liquid inlet, and the other end of which is used to communicate with a perfusion device; and a return water pipeline, one end of which is connected to the liquid outlet, and the other end of which is connected to the negative pressure device; Wherein, the pressure control valve is arranged in the perfusion pipeline and / or the return pipeline.

2. The endoscope system according to claim 1, wherein: The endoscope system also includes a temperature regulator, and a temperature sensor is also provided on the tip. The temperature sensor and the temperature regulator are electrically connected to the control host respectively, and the temperature regulator and the pressure control valve are both provided in the perfusion pipeline.

3. The endoscope system according to claim 1, wherein: The endoscope system also includes a temperature regulator, and a temperature sensor is also provided on the tip. The temperature sensor and the temperature regulator are electrically connected to the control host respectively. When the temperature regulator is set in the perfusion pipeline, the pressure control valve is set in the return water pipeline.

4. The endoscope system according to claim 1, wherein: The endoscope system also includes a temperature regulator, and a temperature sensor is also provided on the tip. The temperature sensor and the temperature regulator are electrically connected to the control host respectively. When the temperature regulator is provided in the perfusion pipeline, the pressure control valve is provided in the perfusion pipeline and the return water pipeline.

5. The endoscope system according to any one of claims 2 to 4, characterized in that: The endoscope system also includes a connecting cable, which includes a first connecting part and a second connecting part, the first connecting part having a male adapter, the second connecting part having a female adapter, the male adapter being signal-connected to the female adapter, the first connecting part being arranged on the handle and being electrically connected to the temperature sensor and the pressure measuring device, the second connecting part being electrically connected to the control host, and the drive unit being electrically connected to the male adapter or the female adapter.

6. The endoscope system according to claim 1, wherein: The tip head includes a tip shell, which is provided with a mounting hole. The pressure measuring device includes a carrier, a baffle cover and a pressure measuring sensor. The carrier is inserted into the mounting hole, and a receiving cavity is formed inside the carrier. The end of the carrier is also provided with an opening connected to the receiving cavity. The side wall of the carrier is also provided with a first flow hole and a second flow hole, and the first flow hole is connected to the second flow hole through the receiving cavity. The baffle cover is installed at the opening, and the pressure measuring sensor is installed in the receiving cavity. The baffle cover, the first flow hole and the second flow hole are all exposed to the tip shell.

7. The endoscope system according to claim 6, wherein: The end surface of the front end shell is recessed to form a step position, the mounting hole is formed on the bottom wall of the step position, the side walls of the step position are arranged around the outside of the portion of the pressure measuring device extending out of the mounting hole, and the side walls of the step position are avoided and matched with the first flow hole and the second flow hole.

8. The endoscope system according to claim 6, wherein: The tip head also includes a camera assembly and a lighting assembly. The tip shell is also provided with a first receiving hole and a second receiving hole. The camera assembly is arranged in the first receiving hole, and the lighting assembly is arranged in the second receiving hole and coordinated with the camera assembly.

9. The endoscope system according to claim 1, wherein: The tip also includes a water injection pipe and a composite functional pipe, both of which are inserted into the endoscope, one end of the water injection pipe is arranged in the liquid injection port, and the other end of the water injection pipe is connected to the liquid inlet, one end of the composite functional pipe is arranged in the liquid return port, and the other end of the composite functional pipe is connected to the liquid outlet; The composite functional pipe is used for passing through stone crushing equipment, water return and stone removal.

10. The endoscope system according to claim 9, wherein: A gap is formed between the inner wall of the composite functional pipe and the outer wall of the stone crushing equipment, and the gap is used for water return and stone discharge; Alternatively, the lithotripsy device can be completely withdrawn from the composite functional tube, so that the lumen of the composite functional tube forms a discharge channel, and the discharge channel is used for returning water and discharging stones.

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