Infusion aspiration system and methods of cannulating the same

Abstract

The application discloses a method for endoscopy of a perfusion suction system, comprising: obtaining historical perfusion flow, setting a preset flow for uniform injection of liquid medium when starting a perfusion operation based on the historical perfusion flow; performing a perfusion operation of the liquid medium according to the preset flow, inputting the liquid medium of the preset flow into the ureter to generate an impact force capable of forming a pre-advance channel of an endoscope, forming an effective distance in the pre-advance channel through the impact force, and controlling the effectiveness of the field of view in the pre-advance channel according to the effective distance; if the effective distance exists, controlling the ureter to be converted from a closed state to an expanded state before entering the renal pelvis; after the ureter is in the expanded state, monitoring the direction of the endoscope in the ureter according to the pre-advance channel, and completing the endoscopy task of the endoscope according to the advance direction. The method improves the endoscopy efficiency, avoids damage to the patient during endoscopy, controls the flow balance, ensures the clear field of view during endoscopy, and improves the operation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a perfusion suction system and a method for entering an endoscope. BACKGROUND

[0002] In the current endoscopic surgery, the ureter is basically in a closed state before the endoscope enters the ureter. If there is no water flow, the ureteroscope will be rubbed hard during the entry process, and the ureter will be expanded mechanically, which can easily injure the ureter and also blur the view, making it difficult to observe the condition of the ureter,

[0003] The common method for entering the endoscope is to use a syringe to push water by an assistant behind the patient. Because the channel of the endoscope is very small, it is very laborious to push water into it, and it requires multiple manual operations. The operating room is small in itself, and the operation is not convenient. Because the perfusion flow is uneven, the visual effect is not ideal, and it can only be used with difficulty. SUMMARY

[0004] The purpose of the present application is to provide a perfusion suction system and a method for entering an endoscope, to improve the efficiency of entering the endoscope, to avoid damage to the patient during entry, to control the flow balance, to ensure a clear view during entry, and to improve the efficiency of the operation.

[0005] The present application provides a method for entering an endoscope of a perfusion suction system, the perfusion suction system comprising at least:

[0006] a pressure control flushing and suction system, a liquid inlet pipeline, a ureter, and an endoscope, the liquid inlet pipeline being connected to the ureter through the pressure control flushing and suction system, the endoscope being connected to the ureter and penetrating through the ureter to enter the endoscope mode;

[0007] The method for entering the endoscope of the system comprises:

[0008] acquiring a historical perfusion flow, and setting a preset flow rate for uniform injection of liquid medium during the start of the perfusion operation based on the historical perfusion flow;

[0009] performing a perfusion operation of the liquid medium according to the preset flow rate, inputting the liquid medium with the preset flow rate into the ureter to generate an impact force capable of forming a pre-advance channel of the endoscope, forming an effective distance in the pre-advance channel through the impact force, and controlling the effectiveness of the view in the pre-advance channel according to the effective distance;

[0010] if the effective distance exists, controlling the ureter to be converted from a closed state to an expanded state before entering the renal pelvis;

[0011] After the ureter is in the expanded state, the direction of the endoscope advancing in the ureter is monitored according to the pre-advancing channel, and the endoscope is used to complete the endoscopy task according to the advancing direction.

[0012] Preferably, the effective distance includes a region within 5mm in any advancing direction from the distal end face of the endoscope.

[0013] Preferably, the pressure-controlled impact suction system is provided with a flow sensor, and the liquid inlet pipeline is clamped on the flow sensor to detect and control the size of the preset flow, so that the liquid medium generates an impact force to open the ureter channel.

[0014] Preferably, the preset flow controls the size of the liquid medium flow according to the flow sensor, generates impact forces of different intensities, and controls the field of view range and space size of the pre-advancing channel.

[0015] Preferably, the pressure-controlled impact suction system at least includes a first liquid inlet pipeline port and a second liquid inlet pipeline port, the first liquid inlet pipeline port is connected with a liquid inlet device, and the second liquid inlet pipeline port is connected with a liquid inlet channel port of the endoscope.

[0016] Preferably, the flow sensor is provided with a mounting groove and a cover plate, one end of the mounting groove is hingedly connected with one end of the cover plate, the liquid inlet pipeline is arranged in the mounting groove, and the flow sensor and the liquid inlet pipeline are tightly connected through the cover plate.

[0017] Preferably, one end of the liquid inlet pipeline close to the flow sensor is arranged to extend around a rotating wheel along the length direction of the liquid inlet pipeline through an adapter, and the other end of the liquid inlet pipeline away from the flow sensor is connected with the liquid inlet channel port of the endoscope.

[0018] Preferably, in the endoscopy mode, the preset flow is set to be constant at 30mL / min.

[0019] The present application provides a perfusion suction system, which comprises an endoscopy module, the endoscopy module comprising:

[0020] A control module is used to acquire a historical perfusion flow, set a preset flow for uniform injection of liquid medium when starting a perfusion operation based on the historical perfusion flow;

[0021] The liquid medium input module is used for inputting the liquid medium with the preset flow into the ureter to generate an impact force capable of forming a pre-advance channel of the endoscope, forming an effective distance in the pre-advance channel through the impact force, and controlling the effectiveness of the field of view in the pre-advance channel according to the effective distance; if the effective distance exists, the ureter is controlled to be switched from the closed state to the expanded state before entering the renal pelvis.

[0022] The endoscope running module is used for monitoring the direction of the endoscope in the ureter according to the pre-advance channel after the ureter is in the expanded state, and completing the endoscope running task according to the running direction.

[0023] Preferably, the effective distance includes a region within 5mm from the distal end face of the endoscope in any running direction.

[0024] Compared with the prior art, the present application has the following advantages and positive effects:

[0025] The present application generates the impact force of the endoscope pre-advance channel through the uniform injection of the preset flow, improves the endoscope running efficiency, avoids the damage to the patient during the endoscope running, controls the balanced flow, ensures the clear field of view during the endoscope running, and improves the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The figure is a flowchart of the endoscope running method of the perfusion and suction system in the embodiment of the present application.

[0027] Figure 2 The figure is a schematic diagram of the pressure control and suction system in the embodiment of the present application.

[0028] Figure 3 The figure is a schematic diagram of the endoscope running system of the perfusion and suction system in the embodiment of the present application. DETAILED DESCRIPTION

[0029] Following, the embodiments of the present application will be described in detail by specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of this specification. The present application can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different views and applications without departing from the spirit of the present application. It should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] It should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0031] In addition, in the description of the present application, "proximal" and "distal" are terms commonly used in the medical field. Specifically, "proximal" is the end closest to the operator, "proximal face" is the end face closest to the operator, "distal" is the end farthest from the operator, and "distal face" is the end face farthest from the operator.

[0032] As Figure 1 shown, the present application provides a method for entering a scope of a perfusion suction system, the perfusion suction system at least comprising:

[0033] The liquid inlet pipeline is connected to the ureter through the pressure control flushing and suction system, the endoscope is connected to the ureter and penetrates the ureter to enter the scope mode;

[0034] The method for entering the scope of the system comprises:

[0035] S1: Obtain historical perfusion flow, and set a preset flow for uniform injection of liquid medium when starting a perfusion operation based on the historical perfusion flow;

[0036] S2: Perform perfusion operation of liquid medium according to the preset flow, input liquid medium of the preset flow into the ureter to generate an impact force capable of forming a pre-advance channel of the endoscope, form an effective distance in the pre-advance channel through the impact force, and control effectiveness of a field of view in the pre-advance channel according to the effective distance; here, the impact force formed by the liquid medium entering the ureter can adjust the size of the liquid flow according to actual conditions to meet the opening of the effective distance.

[0037] S3: If the effective distance exists, control the ureter to be switched from a closed state to a dilated state before entering the renal pelvis;

[0038] S4: After the ureter is in the dilated state, monitor a direction in which the endoscope advances in the ureter according to the pre-advance channel, and complete a ureteroscopy task of the endoscope according to the advance direction. The above process occurs before entering the renal pelvis, and is actually performed in the ureter. The endoscope used in this embodiment includes a rigid endoscope.

[0039] In an embodiment, the effective distance includes a region within 5 mm from any advance direction of the distal end face of the endoscope. In this embodiment, the flow sensor is used to accurately control the perfusion flow, which can well open the range within 5 mm in front of the endoscope, and protect the ureter from being damaged during the entry of the endoscope; at the same time, the ureter can be clearly observed due to the entry of the water flow, and abnormal conditions in the ureter can be found in time. Because the ureter is opened in front of 5 mm by the water flow, the advance direction of the endoscope in the ureter can be clearly seen, and the ureteroscopy becomes very easy and safe; and the size of the water flow can be controlled to control the field of view, if a farther point is wanted to be seen, the size of the perfusion flow can be adjusted to achieve this.

[0040] In an embodiment, the pressure-controlled impact suction system 1 at least includes a first liquid inlet pipeline port and a second liquid inlet pipeline port, the first liquid inlet pipeline port is connected with a liquid inlet device, and the second liquid inlet pipeline port is connected with a liquid inlet passage port of the endoscope

[0041] In an embodiment, the liquid inlet pipeline is clamped on the flow sensor 3, detects and controls the size of the preset flow, so that the liquid medium generates an impact force to open the ureter channel.

[0042] In an embodiment, the preset flow controls the size of the liquid medium flow according to the flow sensor 3, generates impact forces of different intensities to control the field of view range and space size of the pre-advance channel of the endoscope.

[0043] In one embodiment, such as Figure 2 As shown, the flow sensor 3 is provided with a mounting groove and a cover plate 5. One end of the mounting groove is hinged to one end of the cover plate 5. The liquid inlet pipe is set in the mounting groove, and the flow sensor 3 is tightly connected to the liquid inlet pipe 2 through the cover plate 5 to ensure the accuracy of the flow sensor measurement 3.

[0044] In one embodiment, the end of the inlet pipe 2 near the flow sensor 3 is connected to the end of the endoscope via an adapter 6 around the rotating wheel 4 and along the length of the inlet pipe 2. The end of the inlet pipe 2 away from the flow sensor 3 is connected to the inlet port of the endoscope, which is beneficial for accurate measurement of the perfusion flow rate.

[0045] In this embodiment, the flow sensor 3 is a clamp-type flow sensor, which is placed on the host of the pressure-controlled flushing system 1 and clamps the inlet pipe 2, so that the flow rate of the inlet pipe 2 can be directly measured.

[0046] In one embodiment, the endoscope is equipped with a camera at its distal end. When the camera observes the ureteral outlet changing from a closed to an expanded state, the insertion mode is activated. The camera sends a command to the system to synchronize the irrigation and insertion operations, generating an impact force that forms a pre-advance channel for the endoscope, thus opening the ureteral passage. Injecting saline solution allows the camera to see the ureter at the outlet opening dilate, enabling insertion. Irrigation during insertion fully expands the ureter.

[0047] In one embodiment, in the microscopic insertion mode, the preset flow rate is constantly set at 30 mL / min. In microscopic insertion mode, there is no pressure sensor, and the perfusion flow rate is typically kept constant at 30 mL / min, ensuring a constant liquid pressure. This value can be adjusted according to actual conditions.

[0048] like Figure 3 As shown, the present invention provides an infusion aspiration system, including an endoscope module, the endoscope module comprising:

[0049] The control module is used to acquire historical infusion flow rates and set a preset flow rate to ensure uniform injection of the liquid medium when the infusion operation is started based on the historical infusion flow rates.

[0050] The liquid medium is inputted into the ureter according to the preset flow rate to generate an impact force capable of forming a pre-advancing channel of the endoscope, an effective distance is formed in the pre-advancing channel by the impact force, and the effectiveness of the field of view in the pre-advancing channel is controlled according to the effective distance; if the effective distance exists, the ureter is controlled to be switched from the closed state to the expanded state before entering the renal pelvis;

[0051] The mirror-entering operation module is used for monitoring the direction of the endoscope advancing in the ureter according to the pre-advancing channel after the ureter is in the expanded state, and completing the mirror-entering task of the endoscope according to the advancing direction. Specifically, the effective distance includes a region within 5 mm from the distal end face of the endoscope in any advancing direction.

[0052] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments. Even if various changes are made to the present application, as long as the changes belong to the scope of the claims of the present application and equivalent technologies thereof, they still fall within the protection scope of the present application.

Claims

1. A method of introducing a perfusion suction system into a body, characterized in that, The perfusion suction system at least comprises a pressure-controlled flushing suction system, a liquid inlet pipeline, a ureter and an endoscope, the liquid inlet pipeline is connected to the ureter through the pressure-controlled flushing suction system, and the endoscope is connected with the ureter and penetrates through the ureter to enter a mirror mode; The mirror entering method of the system comprises: acquiring historical perfusion flow, and setting a preset flow for uniform injection of liquid medium when starting perfusion operation based on the historical perfusion flow; performing perfusion operation of the liquid medium according to the preset flow, inputting the liquid medium with the preset flow into the ureter to generate an impact force capable of forming a pre-advance channel of the endoscope, forming an effective distance in the pre-advance channel through the impact force, and controlling the effectiveness of the field of view in the pre-advance channel according to the effective distance; if the effective distance exists, controlling the ureter to be switched from a closed state to an expanded state before entering the renal pelvis; after the ureter is in the expanded state, monitoring the direction of the endoscope in the ureter according to the pre-advance channel, and completing the mirror entering task of the endoscope according to the advance direction; wherein, when the camera can observe that the ureter outlet end is switched from the closed state to the expanded state, the mirror entering mode is started, an instruction operation of synchronously running the perfusion operation and the mirror entering operation is sent to the system, and an impact force capable of forming a pre-advance channel of the endoscope is generated, so that the ureter channel is in an expanded state.

2. The mirror entering method of the perfusion suction system according to claim 1, wherein the effective distance includes a region within 5 mm in any advance direction from the distal end face of the endoscope.

3. The method of claim 1, wherein, The pressure-controlled flushing suction system is provided with a flow sensor, the liquid inlet pipeline is clamped on the flow sensor, and the size of the preset flow is detected and controlled, so that the liquid medium generates an impact force to expand the ureter channel.

4. The method of claim 3, wherein, The preset flow controls the size of the liquid medium flow according to the flow sensor, generates impact forces with different intensities, and thus controls the field of view range and space size of the pre-advance channel.

5. The method of claim 3, wherein, The pressure-controlled flushing suction system at least comprises a first liquid inlet pipeline port and a second liquid inlet pipeline port, the first liquid inlet pipeline port is connected with a liquid inlet device, and the second liquid inlet pipeline port is connected with a liquid inlet channel port of the endoscope.

6. The method of claim 3, wherein, The flow sensor is provided with a mounting groove and a cover plate, one end of the mounting groove is hingedly connected with one end of the cover plate, the liquid inlet pipeline is arranged in the mounting groove, and the flow sensor and the liquid inlet pipeline are tightly connected through the cover plate.

7. The method of claim 3, wherein, The end of the liquid inlet pipeline close to the flow sensor is bent around a rotating wheel through an adapter and extends along the length direction of the liquid inlet pipeline, and the end of the liquid inlet pipeline away from the flow sensor is connected with the liquid inlet channel port of the endoscope.

8. The method of claim 1, wherein, In the mirror entering mode, the preset flow is constantly set at 30 mL / min.

9. A perfusion suction system, characterized in that The mirror entering module comprises: a control module for acquiring historical perfusion flow, and setting a preset flow for uniform injection of liquid medium when starting perfusion operation based on the historical perfusion flow; The liquid medium is inputted into the ureter according to the preset flow rate to generate an impact force capable of forming a pre-advance channel for the endoscope, an effective distance is formed in the pre-advance channel by the impact force, and the effectiveness of the field of view in the pre-advance channel is controlled according to the effective distance; if the effective distance exists, the ureter is controlled to be switched from the closed state to the expanded state before entering the renal pelvis; The mirror entering operation module is used for monitoring the direction of the endoscope advancing in the ureter according to the pre-advance channel after the ureter is in the expanded state, and completing the mirror entering task of the endoscope according to the advancing direction. When the camera can observe that the outlet end of the ureter is switched from the closed state to the expanded state, the mirror entering mode is started, and an instruction operation of synchronously running the perfusion operation and the mirror entering operation is sent to the system to generate an impact force capable of forming a pre-advance channel for the endoscope, so that the ureter channel is in the expanded state.

10. The irrigation suction system of claim 9, wherein, The pre-advance channel includes a region within 5 mm from the advancing direction of the distal end surface of the endoscope.

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