Endoscope and renal pressure simulation test device thereof

Abstract

The invention relates to the technical field of surgical medical equipment, and provides an endoscope which comprises an endoscope body, an endoscope sheath and a liquid supply adjusting mechanism. The endoscope body is inserted into the endoscope sheath, a liquid inlet channel is formed in the endoscope body, and the liquid supply adjusting mechanism comprises a barrel, a liquid supply cavity, a liquid storage cavity, a first heating coil, a liquid supply pipe and a liquid supply valve; a liquid supply cavity and a liquid storage cavity are formed in the cylinder body, and the liquid supply cavity is arranged around the periphery of the liquid storage cavity; the first heating coil is arranged on the inner wall of the liquid supply cavity; the liquid supply cavity is communicated with the liquid storage cavity and the liquid supply pipe, and the liquid supply valve is communicated with the liquid storage cavity and the liquid supply pipe; a first pump body is arranged between the liquid supply valve and the liquid inlet channel, and the liquid supply valve is connected with the hydraulic detection device; the invention further discloses a kidney pressure simulation test device. The temperature of perfusate entering the liquid inlet channel can be stably adjusted, adjustment is accurate, and energy and sources are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical medical equipment, and in particular to an endoscope and a renal pressure simulation testing device thereof. Background Art

[0002] The endoscope can enter the kidney through a natural cavity or a minimally invasive incision, directly observe the internal structures such as the renal pelvis and calyces, and can accurately locate the diseased area. Combined with the camera system, the endoscope can transmit the internal image of the kidney to an electronic device, helping doctors complete various detailed examinations of the kidney. It is suitable for use in scenarios such as kidney stone treatment, tumor diagnosis and resection, and renal technical drainage.

[0003] CN118717024A discloses a ureteroscope for simultaneous detection of intrarenal pressure and temperature based on a thin film sensor, comprising an operator for holding and operating, one end of the operator is provided with a ureteroscope for performing surgery; the ureteroscope comprises a supporting catheter fixedly connected to the operator, the supporting catheter is rigidly arranged; a continuum is arranged at one end of the supporting catheter away from the supporting catheter, the continuum is flexibly arranged, and a temperature sensor and a pressure sensor are arranged at the end of the continuum; an endoscope for guiding is arranged at the end of the continuum, and the guide wire of the endoscope is arranged along the continuum and the supporting catheter; a working channel is arranged in the continuum, and the working channel is arranged along the continuum and the supporting catheter.

[0004] CN110623728B discloses an automatic pressure-regulating lithotripsy system, comprising an electronic mirror and a mirror sheath, wherein the electronic mirror comprises a liquid inlet channel; the mirror sheath comprises a sheath body and a sheath tube, wherein the sheath tube is provided with a liquid discharge channel, wherein the sheath body is provided with a transition cavity connected to the liquid discharge channel; the sheath body is provided with a liquid discharge port and a pressure-regulating port connected to the transition cavity; further comprising an infusion device connected to the liquid inlet channel, and an aspiration device connected to the liquid discharge port; further comprising a renal pressure monitoring module, wherein the renal pressure monitoring module comprises a pressure measuring tube and a hydraulic detection device connected to the pressure measuring tube, wherein a regulating valve is provided between the hydraulic detection device and the pressure measuring tube, wherein a liquid adding channel is provided on the regulating valve, and the pressure measuring tube is selectively connected to either the hydraulic detection device or the liquid adding channel through the regulating valve.

[0005] In the prior art, during the use of an endoscope, liquid needs to be perfused into the kidney for cleaning during surgery. Currently, the renal pressure can be stabilized by adjusting the pressure of the perfusion liquid, and the flow rate is generally controlled at 10 ml / s by a pump body. The liquid generally uses physiological saline. Since the liquid temperature is also crucial in kidney surgery, for example, low-temperature perfusion fluid may inhibit platelet activity and increase the risk of intraoperative bleeding, and excessively high temperature may cause thermal damage to kidney tissue, and may cause changes in the patient's body temperature and cause complications. Currently, the temperature control of the perfusion fluid is not precise enough, and the temperature uniformity of the delivered liquid is poor, that is, the liquid temperature at different positions in the storage bag is different, and the temperature cannot be guaranteed to be constant during liquid supply. Summary of the invention

[0006] In the prior art, during the use of the endoscope, the temperature change of the perfusion fluid can easily cause various hazards during kidney surgery; currently, the temperature control of the perfusion fluid is not precise enough, and the temperature uniformity of the delivered liquid is poor, and the temperature cannot be guaranteed to be constant during liquid supply; and when the temperature is too high, an independent cooling device must be set up, and when the temperature of the pressurized liquid is low, an independent heating device must be set up, which consumes a lot of energy and is costly.

[0007] In view of this, the present invention aims to provide an endoscope, in which the endoscope comprises a scope body, a scope sheath and a liquid supply regulating mechanism; the scope body is inserted into the interior of the scope sheath, a liquid inlet channel and an optical fiber channel are arranged inside the scope body, and a temperature sensor and a pressure sensor are arranged at the end of the scope body; the liquid supply regulating mechanism is connected with the liquid inlet channel for supplying liquid to the liquid inlet channel, and the liquid supply regulating mechanism can adjust the supply pressure, temperature and flow rate of the liquid; The liquid supply regulating mechanism includes a cylinder, a liquid supply cavity, a liquid storage cavity, a first heating coil, a liquid supply pipe and a liquid supply valve; the liquid supply cavity is formed in an annular cavity inside the cylinder, and the independently arranged liquid storage cavity is formed in the middle of the cylinder, and the liquid supply cavity is arranged around the circumference of the liquid storage cavity; the first heating coil is arranged on the inner wall of the liquid supply cavity; the liquid supply cavity is connected with the liquid storage cavity and the liquid supply pipe, and the liquid supply valve is connected with the liquid storage cavity and the liquid supply pipe; a first pump body is arranged between the liquid supply valve and the liquid inlet channel, and the liquid supply valve and the liquid inlet channel are connected through the pump body; the liquid supply valve is connected with the hydraulic detection device.

[0008] Furthermore, a plurality of liquid inlet pipes are evenly arranged on the periphery of the cylinder along its tangent direction, and the liquid inlet pipes are connected to the liquid supply cavity.

[0009] Furthermore, a connecting valve is provided on one side of the cylinder, and the connecting valve is provided on a side of the cylinder away from the liquid supply valve. The input end of the connecting valve is connected to the liquid supply cavity through a first pipe, and the output end of the connecting valve is connected to the liquid supply pipe. The output end of the connecting valve is connected to the liquid storage cavity through a second pipe, and the liquid storage cavity is connected to the liquid supply valve through a third pipe; and opening and closing valves are provided on the second pipe and the third pipe.

[0010] Furthermore, the liquid supply pipes are provided in plurality, both ends of the plurality of liquid supply pipes are connected to the connecting valve and the liquid supply valve, the liquid supply pipes are evenly arranged on the outer wall of the cylinder, and the outer wall of the cylinder is provided with an installation groove for embedding the liquid supply pipes.

[0011] Furthermore, a cyclone is provided in the liquid storage cavity, and the cyclone is installed inside the liquid storage cavity through a connecting tube, and the connecting tube is provided on a side of the cylinder body close to the liquid supply valve; the connecting tube is inserted into the liquid storage cavity from one end of the liquid storage cavity, and the outer wall of the connecting tube is in contact with the inner wall of the liquid storage cavity; a limiting portion is provided on the connecting tube, and the limiting portion is in contact with the outside of the cylinder body; the connecting tube is installed on the cylinder body through a cover plate, and the cover plate is installed on the cylinder body through screws.

[0012] Furthermore, an abutment groove is provided on the cover plate on a side facing the connecting pipe, and a limiting portion of the connecting pipe is provided in the abutment groove; and a second heating coil is provided between the connecting pipe and the cover plate.

[0013] Furthermore, a second pump body is installed on the third pipeline, a movable plug is arranged at one end of the liquid storage cavity, the movable plug can seal one end of the liquid storage cavity, the movable plug is arranged in the liquid storage cavity and can slide in the liquid storage cavity, the second pipeline is arranged as a telescopic tube, and a position sensor is arranged on the movable plug.

[0014] The present invention also discloses a renal pressure simulation testing device, comprising a main control module, a display module and the above-mentioned endoscope; the main control module is used to control and adjust the pressure, flow rate and temperature of the liquid delivered to the endoscope, and the display module is used to display the numerical values ​​and curves of the pressure, flow rate and temperature of the delivered liquid in real time.

[0015] Furthermore, the master control module includes: A pressure control unit, used to obtain a real-time hydraulic value of the liquid in the liquid supply valve, and determine whether pressurized liquid supply is required through the liquid storage chamber according to the real-time hydraulic value; A flow rate control unit, used to obtain a real-time flow rate value of the liquid in the liquid supply valve, and determine whether it is necessary to adjust the first pump body to change the flow rate according to the real-time flow rate value; The temperature control unit is used to obtain the real-time temperature value of the liquid in the liquid supply valve, and determine whether the heating temperature of the first heating coil needs to be adjusted according to the real-time temperature value.

[0016] Furthermore, the master control module also includes an auxiliary temperature control unit, which is used to obtain the temperature difference between the preset temperature of the temperature control unit and the real-time temperature value, and determine whether the second heating coil needs to be started according to the temperature difference.

[0017] The endoscope and the renal pressure simulation inspection device thereof disclosed in the present invention realize a stable supply of heated perfusion liquid by arranging structures such as a liquid supply chamber, a liquid storage chamber, a liquid supply tube, and a connecting valve. Not only can the pressure of the liquid supply be adjusted, but also the temperature of the output liquid can be adjusted by outputting the liquid in the liquid storage chamber and mixing it with the liquid in the liquid supply tube. The temperature of the liquid supply can be accurately adjusted, and both feeding and conveying can make the liquids evenly mixed, thus avoiding the phenomenon of different liquid supply temperatures. At the same time, when the liquid supply temperature is too high or too low, the temperature of the liquid in the liquid storage chamber can be directly adjusted without arranging a cooling mechanism or heating independently, thus saving costs. The liquid storage chamber is arranged inside the liquid supply chamber, so that the liquid in the liquid storage chamber can be kept warm during liquid supply, thus avoiding reheating of the added part, and being convenient to use.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 A schematic diagram of the structure of an endoscope in one embodiment of the present invention; Figure 2 A schematic diagram of a liquid supply regulating mechanism in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a cylinder in one embodiment of the present invention; Figure 4 This is a schematic diagram of the coordination of a cover plate, a cyclone and a connecting pipe in one embodiment of the present invention; Figure 5 It is a schematic structural diagram of a connecting pipe in one embodiment of the present invention.

[0020] Description of reference numerals: 1. Endoscope; 2. Cylinder; 201. Liquid supply cavity; 202. Liquid storage cavity; 203. Mounting groove; 204. Liquid inlet pipe; 3. First heating coil; 4. Liquid supply pipe; 5. Liquid supply valve; 6. Connecting valve; 7. First pipeline; 8. Second pipeline; 9. Third pipeline; 10. Cyclone; 11. Connecting pipe; 111. Limiting part; 12. Cover plate; 13. Second heating coil; 14. Movable plug. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding, etc.

[0024] In the prior art, during the use of the endoscope 1, liquid needs to be perfused into the kidney for cleaning during surgery. Currently, the renal pressure can be stabilized by adjusting the pressure of the perfusion liquid, and the flow rate is generally controlled at 10 ml / s by the pump body. The liquid generally uses physiological saline. Since the liquid temperature is also crucial in kidney surgery, for example, low-temperature perfusion fluid may inhibit platelet activity and increase the risk of intraoperative bleeding, and too high a temperature may cause thermal damage to kidney tissue, and may cause changes in the patient's body temperature and cause complications. Currently, the temperature control of the perfusion fluid is not precise enough, and the temperature uniformity of the delivered liquid is poor, that is, the liquid temperature at different positions in the liquid storage bag is different, and the temperature cannot be guaranteed to be constant during liquid supply. When the temperature is too high, an independent cooling device must be set, and when the liquid temperature during pressurization is low, an independent heating device must be set, which consumes a lot of energy and is costly.

[0025] Example 1 The present invention provides an endoscope 1, such as Figure 1 and Figure 2As shown, in this embodiment, the endoscope 1 includes a scope body, a scope sheath and a liquid supply regulating mechanism; a channel is provided in the scope sheath so that the scope body can be inserted into the interior of the scope sheath, a liquid inlet channel and an optical fiber channel are provided inside the scope body, a temperature sensor, a pressure sensor and a camera are provided at the end of the scope body, the camera is used to collect images in the cavity, and the images are transmitted to the display after processing for the doctor to observe the environmental conditions in the cavity; the liquid supply regulating mechanism is connected to the liquid inlet channel for supplying liquid to the liquid inlet channel, the liquid inlet channel is used for the inflow of perfusion liquid, the perfusion liquid is used to flush the bleeding and stone powder during the operation, flush the camera, and keep the field of view clear; the liquid supply regulating mechanism can adjust the supply pressure, temperature and flow rate of the liquid.

[0026] Specifically: the liquid supply regulating mechanism includes a cylinder 2, a liquid supply cavity 201, a liquid storage cavity 202, a first heating coil 3, a liquid supply tube 4 and a liquid supply valve 5; a liquid supply cavity 201 in the form of an annular cavity is formed inside the cylinder 2, and an independently arranged liquid storage cavity 202 is formed in the middle of the cylinder 2, the liquid supply cavity 201 is arranged around the circumference of the liquid storage cavity 202, and the liquid storage cavity 202 is a cylindrical structure located in the middle of the liquid supply cavity 201; the liquid supply cavity 201 is used to supply liquid to the liquid inlet channel, and the liquid storage cavity 202 is used to assist the liquid supply when the liquid supply cavity 201 supplies liquid, and is used for pressurized liquid supply; the first heating coil 3 is spirally arranged on the inner wall of the liquid supply cavity 201, and is used to heat the liquid in the liquid supply cavity 201; the liquid supply cavity 201 is connected to the liquid supply tube 4 The liquid supply chamber 201 is connected with the liquid storage chamber 202, that is, the liquid in the liquid supply chamber 201 can selectively enter the liquid supply pipe 4 or the liquid storage chamber 202; the liquid supply valve 5 is connected with the liquid supply pipe 4, and the liquid supply valve 5 is connected with the liquid storage chamber 202, that is, the liquid in the liquid supply chamber 201 and the liquid storage chamber 202 can enter the liquid supply valve 5 for transportation at the same time; a first pump body is arranged between the liquid supply valve 5 and the liquid inlet channel, and the liquid supply valve 5 and the liquid inlet channel are connected through the pump body. The first pump body can drive the liquid in the liquid supply chamber 201 and the liquid storage chamber 202 to enter the liquid inlet channel through the liquid supply valve 5, as a liquid supply power source; the liquid supply valve 5 is connected with the hydraulic detection device, and the hydraulic pressure of the liquid passing through the liquid supply valve 5 is measured by the hydraulic detection device.

[0027] In addition, a connecting valve 6 is provided on one side of the cylinder 2, and the connecting valve 6 is provided on the side of the cylinder 2 away from the liquid supply valve 5; the connecting valve 6 is used to connect the liquid storage chamber 202, the liquid supply chamber 201 and the liquid supply pipe 4, specifically: the input end of the connecting valve 6 is connected to the liquid supply chamber 201 through the first pipe 7, and the connecting valve 6 has two output ends, one of which is connected to the liquid supply pipe 4, and the other is connected to the liquid storage chamber 202 through the second pipe 8, and the liquid storage chamber 202 is connected to the liquid supply valve 5 through the third pipe 9; the second pipe 8 and the third pipe 9 are both provided with opening and closing valves for controlling the opening and closing of the second pipe 8 and the third pipe 9.

[0028] In this embodiment, the flow direction of the perfusion liquid is: from the liquid inlet pipe 204 into the liquid supply chamber 201 of the barrel 2, after the liquid in the liquid supply chamber 201 is heated, it first enters the second pipe 8 through the first pipe 7, and then enters the liquid storage chamber 202 through the second pipe 8. After the liquid in the liquid storage chamber 202 is fully stored, the opening and closing valve on the second pipe 8 is closed, and the liquid enters the liquid supply pipe 4. The liquid in the liquid supply pipe 4 enters the liquid inlet channel through the liquid supply valve 5 for liquid supply; when necessary, the liquid in the liquid storage chamber 202 is discharged together with the liquid in the liquid supply pipe 4 and mixed into the liquid inlet channel; when the liquid in the liquid storage chamber 202 is discharged and supplied, the opening and closing valve on the second pipe 8 is closed; the liquid in the liquid storage chamber 202 is sufficient to supply liquid for one operation.

[0029] In order to ensure the stable entry of liquid into the liquid supply cavity 201; Figure 3 As shown, a plurality of liquid inlet pipes 204 are evenly arranged on the circumference of the cylinder 2 along its tangential direction. In the present embodiment, two liquid inlet pipes are arranged, and the two liquid inlet pipes are symmetrically arranged at the center. The liquid inlet pipes are connected to the liquid supply cavity 201 for adding liquid into the liquid supply cavity 201; the two liquid inlet pipes are respectively arranged on the front and rear sides of the cylinder 2. With the above structure, when the liquid inlet pipes fill with liquid, the liquid enters the liquid supply cavity 201 symmetrically from both sides along the tangential direction of the cylinder 2, so that the entry of the liquid is more stable and smooth, the turbulence when the liquid enters is reduced, and the impact on the cylinder 2 is avoided to keep the structure of the cylinder 2 stable.

[0030] In order to improve the stability of liquid delivery to the liquid supply chamber 201, multiple liquid supply pipes 4 are provided. In the present embodiment, two liquid supply pipes are provided. Both ends of the two liquid supply pipes 4 are connected to the connecting valve 6 and the liquid supply valve 5. The liquid supply pipe 4 delivers the liquid from the connecting valve 6 to the liquid supply valve 5. The liquid supply pipes 4 are evenly spaced on the outer wall of the cylinder 2. An installation groove 203 is provided on the outer wall of the cylinder 2. The liquid supply pipe 4 is embedded in the installation groove 203 for installation. This can not only ensure the stability of the installation of the liquid supply pipe 4, but also embed the liquid supply pipe 4 so that it is close to the first heating coil 3. When the first heating coil 3 is heated, the liquid being transported by the liquid supply pipe 4 can be kept warm to a certain extent.

[0031] In order to improve the uniformity of the liquid discharged from the liquid storage chamber 202 and avoid uneven temperature of the liquid discharged from the liquid storage tube; Figure 4 and Figure 5As shown, a cyclone 10 is arranged in the liquid storage chamber 202. The cyclone 10 is installed inside the liquid storage chamber 202 through a connecting pipe 11. The connecting pipe 11 is arranged on a side of the cylinder 2 close to the liquid supply valve 5. The connecting pipe 11 is inserted into the liquid storage chamber 202 from the side to install the cyclone 10. The connecting pipe 11 is inserted into the liquid storage chamber 202 from one end of the liquid storage chamber 202, and the outer wall of the connecting pipe 11 is in contact with the inner wall of the liquid storage chamber 202, so that the liquid in the liquid storage chamber 202 completely passes through the cyclone 10 when it is discharged. A limiting portion 111 is provided on the connecting pipe 11, and the limiting portion 111 of the connecting pipe 11 The inner diameter of the position portion 111 is consistent with that of other portions, and the outer diameter is larger than that of other portions of the connecting tube 11; the limiting portion 111 can be installed in contact with the outside of the cylinder 2; the connecting tube 11 presses the limiting portion 111 of the connecting tube 11 onto the cylinder 2 through the cover plate 12, and the cover plate 12 is installed on the cylinder 2 through screws; the arrangement of the cyclone 10, when the liquid in the liquid storage chamber 202 is discharged through the cyclone 10, a vortex can be formed to evenly stir the liquid in the liquid storage chamber 202, thereby avoiding uneven temperature of the liquid in the liquid storage chamber 202 when it is left stationary, and avoiding different temperatures when the liquid is discharged.

[0032] In order to improve the installation stability of the cyclone 10 and improve the stability of the heating mechanism installed in the liquid storage chamber 202; an abutment groove is provided on the cover plate 12 on the side facing the connecting pipe 11, and the limiting portion 111 of the connecting pipe 11 is provided in the abutment groove and abuts against the inner side of the cover plate 12; a second heating coil 13 is provided between the connecting pipe 11 and the cover plate 12, and the limiting portion 111 of the cover plate 12 and the connecting pipe 11 clamps and abuts the second heating coil 13 to fix it, and the connecting pipe 11 and the second heating coil 13 are matched and installed through the cover plate 12, which is not only stable in installation, but also more convenient for disassembly and maintenance.

[0033] In order to improve the stability of liquid supply in the liquid storage chamber 202; a second pump body is installed on the third pipe 9, and the second pump body is used as the power to extract the movement in the liquid storage chamber 202. The first pump body and the second pump body are both configured as peristaltic pumps; a movable plug 14 is provided at one end of the liquid storage chamber 202, and the movable plug 14 is provided with a plug body structure, and a liquid flow hole is provided in the middle, and the movable plug 14 can seal one end of the liquid storage chamber 202, and the movable plug 14 is provided in the liquid storage chamber 202 and can slide in the liquid storage chamber 202, one end of the second pipe 8 is connected to the connecting valve 6 and the other end is connected to the movable plug 14, and the second pipe 8 is configured as a telescopic tube so that the second pipe 8 can move when the movable plug 14 moves The movable plug 14 is provided with a position sensor to obtain the real-time position of the movable plug 14. The liquid storage amount in the liquid storage chamber 202 can be judged according to the position of the movable plug 14. When the liquid storage chamber 202 is full, the liquid supply chamber 201 can be stopped in time to supply liquid to the liquid storage chamber 202. When the liquid storage chamber 202 discharges liquid, the liquid in the liquid storage chamber 202 is reduced, and the internal pressure is reduced to drive the movable plug 14 to move toward the cyclone 10. When the liquid storage chamber 202 is filled with liquid, the movable plug 14 moves away from the cyclone 10, which can ensure the stability of the liquid supply to the liquid storage chamber 202 and prevent the liquid storage chamber 202 from being connected with the outside and polluting the liquid storage chamber 202.

[0034] The present invention realizes a stable supply of heated perfusion liquid by arranging structures such as a liquid supply chamber 201, a liquid storage chamber 202, a liquid supply tube 4, and a connecting valve 6. It can not only adjust the pressure of the liquid supply, but also adjust the temperature of the output liquid by outputting the liquid in the liquid storage chamber 202 and mixing it with the liquid in the liquid supply tube 4. It can accurately adjust the temperature of the liquid supply, and both feeding and conveying can make the liquids evenly mixed, thereby avoiding the phenomenon of different liquid supply temperatures. At the same time, when the liquid supply temperature is too high or too low, the temperature of the liquid in the liquid storage chamber 202 can be directly adjusted without arranging a cooling mechanism or heating independently, thereby saving costs. The liquid storage chamber 202 is arranged inside the liquid supply chamber 201, so that the liquid in the liquid storage chamber 202 can be kept warm during liquid supply, thereby avoiding reheating of the added part, and is convenient to use.

[0035] Example 2 The present invention also discloses a renal pressure simulation test device, comprising a master control module, a display module and the above-mentioned endoscope 1; the endoscope 1 is connected to a kidney simulation model, the kidney simulation model comprises structures such as renal pyramids, renal calyces, and renal pelvis, and uses elastic materials to simulate the deformation characteristics of a real kidney to support puncture and perfusion operations; a hydraulic detection device detects the liquid pressure during input and output of the kidney simulation model so as to adjust the input pressure of the perfusion liquid; wherein the master control module is used to control and adjust the pressure, flow rate and temperature of the liquid delivered to the endoscope 1, and the display module is used to display the numerical values ​​and curves of the pressure, flow rate and temperature of the delivered liquid in real time.

[0036] In this embodiment, the master control module includes: The pressure control unit is used to obtain the real-time hydraulic value of the liquid in the liquid supply valve 5, and judge whether it is necessary to pressurize the liquid supply through the liquid storage chamber 202 according to the real-time hydraulic value; when the liquid supply pressure is low, the second pump body is started to cooperate with the liquid storage chamber 202 to supply liquid to meet the demand of pressurized delivery; A flow rate control unit is used to obtain the real-time flow rate value of the liquid in the liquid supply valve 5, and judge whether it is necessary to adjust the first pump body to change the flow rate according to the real-time flow rate value; when the flow rate is different from the preset flow rate, the power of the first pump body is changed to reduce or increase the flow rate of the liquid supply; The temperature control unit is used to obtain the real-time temperature value of the liquid in the liquid supply valve 5, and judge whether it is necessary to adjust the heating temperature of the first heating coil 3 according to the real-time temperature value; when the real-time temperature of the liquid is low, adjust the heating temperature of the first heating coil 3 to increase the liquid temperature of the liquid supply.

[0037] In this embodiment, the master control module further includes an auxiliary temperature control unit, which is activated when pressurized auxiliary liquid supply is performed through the liquid storage chamber 202; the working process of the auxiliary temperature control unit is: first, before the opening and closing valve on the third pipeline 9 is opened, the real-time temperature value of the liquid in the liquid supply valve 5 is obtained, and the preset temperature value of the temperature control unit is obtained, and the real-time temperature value is compared with the preset temperature value to obtain the temperature difference; the specific difference is as follows: When the real-time temperature value is the same as the preset temperature value, the second heating coil 13 is started to heat the liquid in the liquid storage chamber 202 to the same temperature value as the real-time temperature value, and then the opening and closing valve on the third pipeline 9 is opened to assist in liquid supply; When the real-time temperature value is lower than the preset temperature value, the temperature to be heated is calculated according to the temperature difference, and the second heating coil 13 is started to heat the liquid in the liquid storage chamber 202 to a temperature higher than the preset temperature value until it is the same as the temperature to be heated, and then the opening and closing valve on the third pipeline 9 is opened to perform auxiliary liquid supply, and the liquid in the third pipeline 9 is mixed with the original liquid supply, so that the temperature of the mixture is raised to the same as the preset temperature for liquid supply; When the real-time temperature value is higher than the preset temperature value, the temperature to be heated is calculated according to the temperature difference, and the second heating coil 13 is started (the liquid in the liquid storage chamber 202 is kept warm but not heated, so the temperature of the liquid therein is slightly lower than the preset temperature), and the liquid in the liquid storage chamber 202 is heated to the same temperature as the temperature to be heated, and then the opening and closing valve on the third pipe 9 is opened for auxiliary liquid supply, and the liquid in the third pipe 9 is mixed with the original liquid supply. Since the temperature in the liquid storage chamber 202 is still lower than the preset temperature, the temperature of the mixed liquid will be reduced to the same as the preset temperature for liquid supply.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An endoscope, characterized in that: The endoscope (1) comprises a scope body, a scope sheath and a liquid supply regulating mechanism; The mirror body is inserted into the interior of the mirror sheath, a liquid inlet channel is provided inside the mirror body, and a temperature sensor and a pressure sensor are provided at the end of the mirror body; the liquid supply regulating mechanism is connected with the liquid inlet channel for supplying liquid to the liquid inlet channel, and the liquid supply regulating mechanism can adjust the supply pressure, temperature and flow rate of the liquid; The liquid supply regulating mechanism comprises a cylinder (2), a liquid supply cavity (201), a liquid storage cavity (202), a first heating coil (3), a liquid supply pipe (4) and a liquid supply valve (5); the cylinder (2) forms the liquid supply cavity (201) in the form of an annular cavity, the middle of the cylinder (2) forms the independently arranged liquid storage cavity (202), and the liquid supply cavity (201) is arranged around the circumference of the liquid storage cavity (202); the first heating coil (3) is arranged on the inner wall of the liquid supply cavity (201); the liquid supply cavity (201) is connected with the liquid storage cavity (202) and the liquid supply pipe (4), and the liquid supply valve (5) is connected with the liquid storage cavity (202) and the liquid supply pipe (4); a first pump body is arranged between the liquid supply valve (5) and the liquid inlet channel, and the liquid supply valve (5) and the liquid inlet channel are connected through the pump body; the liquid supply valve (5) is connected to a hydraulic detection device.

2. The endoscope according to claim 1, characterized in that A plurality of liquid inlet pipes are evenly arranged on the periphery of the cylinder (2) along its tangent direction, and the liquid inlet pipes are in communication with the liquid supply cavity (201).

3. The endoscope according to claim 1, characterized in that A connecting valve (6) is provided on one side of the cylinder (2). The connecting valve (6) is provided on a side of the cylinder (2) away from the liquid supply valve (5). The input end of the connecting valve (6) is communicated with the liquid supply chamber (201) via a first pipe (7), the output end of the connecting valve (6) is communicated with the liquid supply pipe (4), the output end of the connecting valve (6) is communicated with the liquid storage chamber (202) via a second pipe (8), and the liquid storage chamber (202) is communicated with the liquid supply valve (5) via a third pipe (9); the second pipe (8) and the third pipe (9) are provided with opening and closing valves.

4. The endoscope according to claim 3, characterized in that The liquid supply pipes (4) are arranged in a plurality, both ends of the plurality of liquid supply pipes (4) are connected to the connection valve (6) and the liquid supply valve (5), the liquid supply pipes (4) are evenly arranged on the outer wall of the cylinder (2), and the outer wall of the cylinder (2) is provided with a mounting groove (203) for the liquid supply pipes (4) to be embedded.

5. The endoscope according to any one of claims 1 to 3, characterized in that: A cyclone (10) is arranged in the liquid storage cavity (202), and the cyclone (10) is installed in the liquid storage cavity (202) via a connecting pipe (11), and the connecting pipe (11) is arranged on a side of the cylinder (2) close to the liquid supply valve (5); the connecting pipe (11) is inserted into the liquid storage cavity (202) from one end of the liquid storage cavity (202), and the outer wall of the connecting pipe (11) is in contact with the inner wall of the liquid storage cavity (202); a limiting portion (111) is arranged on the connecting pipe (11), and the limiting portion (111) is in contact with the outside of the cylinder (2); the connecting pipe (11) is installed on the cylinder (2) via a cover plate (12), and the cover plate (12) is installed on the cylinder (2) via screws.

6. The endoscope according to claim 5, characterized in that The cover plate (12) is provided with an abutment groove on a side facing the connecting tube (11), and the limiting portion (111) of the connecting tube (11) is arranged in the abutment groove; a second heating coil (13) is arranged between the connecting tube (11) and the cover plate (12).

7. The endoscope according to claim 3 or 4, characterized in that: A second pump body is installed on the third pipeline (9); a movable plug (14) is provided at one end of the liquid storage chamber (202); the movable plug (14) is capable of sealing one end of the liquid storage chamber (202); the movable plug (14) is arranged in the liquid storage chamber (202) and is capable of sliding in the liquid storage chamber (202); the second pipeline (8) is configured as a telescopic tube; and a position sensor is provided on the movable plug (14).

8. A renal pressure simulation test device, characterized in that: It comprises a master control module, a display module and an endoscope (1) as claimed in any one of claims 1 to 7; The master control module is used to control and adjust the pressure, flow rate and temperature of the liquid delivered to the endoscope (1), and the display module is used to display the numerical values ​​and curves of the pressure, flow rate and temperature of the delivered liquid in real time.

9. The renal pressure simulation testing device according to claim 8, characterized in that: The master control module comprises: A pressure control unit, used to obtain a real-time hydraulic pressure value of the liquid in the liquid supply valve (5), and determine whether pressurized liquid supply is required through the liquid storage chamber (202) based on the real-time hydraulic pressure value; A flow rate control unit, used to obtain a real-time flow rate value of the liquid in the liquid supply valve (5), and determine whether it is necessary to adjust the first pump body to change the flow rate according to the real-time flow rate value; The temperature control unit is used to obtain the real-time temperature value of the liquid in the liquid supply valve (5), and to determine whether the heating temperature of the first heating coil (3) needs to be adjusted based on the real-time temperature value.

10. The renal pressure simulation testing device according to claim 9, characterized in that: The master control module also includes an auxiliary temperature control unit, which is used to obtain a temperature difference between a preset temperature of the temperature control unit and the real-time temperature value, and to determine whether the second heating coil (13) needs to be started according to the temperature difference.

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