Flexible ureteroscope water injector

Abstract

This application provides a ureteroscope injector, belonging to the technical field of medical devices, including an infusion line, an injection line, an injection pump, a backflow line, and a backflow pump. The infusion line is used to connect to the injection valve of the ureteroscope. The input end of the infusion line is connected to the injection pump, and the output end is connected to the infusion line. The injection pump is used to inject liquid into the injection line. The input end of the backflow line is connected to the infusion line, and the output end is connected to the backflow pump. The backflow pump is used to aspirate liquid from the backflow line. During the operation, the pressure can be controlled by the coordinated work of the injection pump and the backflow pump, maintaining stable intrarenal pelvic pressure. No other external instruments are needed during the operation, reducing the complexity of the surgery and the risk of infection, and improving surgical efficiency and safety.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and more specifically, relates to a ureteroscope injector. Background Technology

[0002] The ureteroscope water infuser is a key auxiliary instrument used in urological surgery for lithotripsy of kidney stones. Its function is to maintain the pressure balance in the renal pelvis, flush out debris in the surgical field, and help stabilize the field of vision of the ureteroscope by continuously injecting water.

[0003] During surgery, debris is generated. If this debris is not removed promptly, it can obstruct the field of vision, increase surgical time, and increase the risk of infection. In such cases, an external suction device may be necessary to remove the debris. Additionally, when encountering large stones or blood clots, simple water injection may not be sufficient to maintain a clear field of vision, requiring suction assistance. High pressure within the renal pelvis can also occur. If excessive water injection leads to increased pressure, it may cause complications, necessitating suction to decompress the pressure. Furthermore, patients with specific conditions such as infected stones or anatomical abnormalities may require more frequent suction to prevent the spread of infection or to address strictures.

[0004] However, existing flexible ureteroscopes require an external suction device during surgery, which increases the complexity of the procedure, prolongs the operation time, and increases the risk of infection. Utility Model Content

[0005] The purpose of this application is to provide a ureteroscopic infusion device to solve the problem of increased surgical complexity and prolonged operation time caused by the need for an external suction device in the prior art for kidney stone lithotripsy.

[0006] To achieve the above objectives, this application provides a ureteroscope infusion device, including an infusion line, an infusion line, an infusion pump, a backflow line, and a backflow pump; the infusion line is used to connect to the infusion valve of the ureteroscope; the infusion line has an input end connected to the infusion pump and an output end connected to the infusion line, and the infusion pump is used to inject liquid into the infusion line; the backflow line has an input end connected to the infusion line and an output end connected to the backflow pump, and the backflow pump is used to backflow the liquid in the backflow line.

[0007] In some embodiments, the ureteroscope injector further includes a first control component and a second control component. The first control component is connected to the aspiration line and is used to control the opening or closing of the aspiration line. The second control component is connected to the injection line and is used to control the opening or closing of the injection line.

[0008] In some embodiments, the first control component includes a backflow control valve connected to the backflow pipeline for controlling the on / off state of the backflow pipeline.

[0009] In some embodiments, the first control component further includes a first one-way valve connected to the backflow line for restricting the flow of liquid in the backflow line from the output end of the backflow line toward the input end of the backflow line.

[0010] In some embodiments, the first control component further includes a first pressure sensor connected to the back suction line for detecting the pressure value of the liquid in the back suction line.

[0011] In some embodiments, the first control component further includes a first integrated base, the first integrated base being provided with a back suction channel having a first inlet and a first outlet, the output end of the back suction pipeline being connected to the first inlet, the back suction pump being connected to the first outlet, and the back suction control valve, the first one-way valve, and the first pressure sensor all being disposed on the first integrated base.

[0012] In some embodiments, the second control component includes a water injection control valve connected to the water injection pipeline for controlling the on / off state of the water injection pipeline.

[0013] In some embodiments, the second control component further includes a second check valve connected to the water injection line for restricting the flow of liquid in the water injection line from the output end of the water injection line toward the input end of the water injection line.

[0014] In some embodiments, the second control component further includes a second pressure sensor connected to the water injection pipeline for detecting the pressure value of the liquid in the water injection pipeline.

[0015] In some embodiments, the second control component further includes a second integrated base, the second integrated base being provided with a water injection channel having a second inlet and a second outlet, the inlet end of the water injection pipeline being connected to the second outlet, the water injection pump being connected to the second inlet, and the water injection control valve, the second check valve, and the second pressure sensor all being disposed on the second integrated base.

[0016] The beneficial effects of the ureteroscope water injector provided in this application are as follows: During the operation, the water pump injects liquid into the water injection line and provides a continuous and stable water injection to the ureteroscope through the infusion line, maintaining the pressure balance in the renal pelvis and ensuring a clear surgical field. At the same time, the suction pump promptly aspirates excess liquid or surgical debris through the suction line, effectively preventing excessive pressure in the renal pelvis and reducing the occurrence of complications. It maintains stable pressure in the renal pelvis without the need for an external suction device, thereby improving surgical efficiency and safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the ureteroscope injector in an exemplary embodiment of this application; Figure 2 This is a partial view of the first control component and the second control component in an exemplary embodiment of this application; Figure 3 for Figure 2 A cross-sectional view along the AA direction; Figure 4 for Figure 2 Cross-sectional view along the BB direction.

[0019] The following are the labeling elements in the figure: 100 - Infusion line; 200 - Water injection line; 300 - Water injection pump; 400 - Back suction line; 500 - Back suction pump; 600 - First control component; 610 - Back suction control valve; 620 - First check valve; 621 - First valve core; 622 - First limit ring; 623 - First spring; 630 - First pressure sensor; 640 - First integrated base; 641 - Back suction channel; 641a - First input port; 641b - First output port; 700 - Second control component; 710 - Water injection control valve; 720 - Second check valve; 721 - Second valve core; 722 - Second limit ring; 723 - Second spring; 730 - Second pressure sensor; 740 - Second body; 741 - Water injection channel; 741a - Second input port; 741b - Second output port. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] This application provides a ureteroscope injector, such as... Figure 1 As shown, the ureteroscope infusion device includes an infusion line 100, an infusion line 200, an infusion pump 300, a back suction line 400, and a back suction pump 500. The output end of the infusion line 200 is connected to the infusion line 100, and the input end of the infusion line 200 is connected to the infusion pump 300. The input end of the back suction line 400 is connected to the infusion line 100, and the output end of the back suction line 400 is connected to the back suction pump 500.

[0025] The infusion tubing 100 can be a relatively long, transparent flexible tube for ease of use and operation by medical personnel. One end of the infusion tubing 100 can be equipped with a special connector, which can be connected to the water injection valve of a ureteroscope. The other end of the infusion tubing 100 is connected to the water injection tubing 200 and the back suction tubing 400, so that saline can be delivered to the infusion tubing 100 through the water injection pump 300 and the water injection tubing 200, or saline can be aspirated from the infusion tubing 100 using the back suction pump 500 and the back suction tubing 400. The output end of the water injection tubing 200, the input end of the back suction tubing 400, and the infusion tubing 100 can be connected by a T-junction. The infusion tubing 100, the water injection tubing 200, and the back suction tubing 400 can also be integrally formed; this embodiment does not impose any restrictions on this.

[0026] The water inlet line 200 can be a transparent flexible tube or a rigid tube. The two extensions of the water inlet line 200 are the input and output ends, respectively. The input end of the water inlet line 200 is connected to the water inlet pump 300, and the output end is connected to the infusion line 100. When the water inlet pump 300 is working, it generates a certain pressure, propelling normal saline into the water inlet line 200, and then through the water inlet line 200 into the infusion line 100. Subsequently, it is inserted into the patient's body through the infusion line 100 and the ureteroscope, maintaining a clear surgical field and stable intrarenal pelvic pressure. The water inlet pump 300 can be a plunger pump, peristaltic pump, or diaphragm pump, etc. The water inlet pump 300 should also be connected to a reservoir bag or other liquid storage structure for storing normal saline and other liquids, so that the water inlet pump 300 can deliver the liquid from the reservoir structure into the water inlet line 200.

[0027] The aspiration line 400 can be a transparent flexible tube or a rigid tube. The two extensions of the aspiration line 400 are its inlet and outlet, respectively. The inlet is connected to the infusion line 100, and the outlet is connected to the aspiration pump 500. During the procedure, the aspiration pump 500 generates negative pressure, drawing saline solution and surgical debris from the patient through the ureteroscope and infusion line 100 into the aspiration line 400, and then expelling it through the aspiration pump 500. This maintains a clear surgical field, depressurizes when the pressure is too high, and prevents debris from clogging the ureteroscope. The aspiration pump 500 can also be a plunger pump, peristaltic pump, or diaphragm pump, and its outlet should be connected to a reservoir to collect and store the aspirated fluid and debris for subsequent processing.

[0028] The ureteroscope water injector provided in this application embodiment can clean up debris or reduce pressure by directly activating the back suction pump 500 when there are many debris or excessive pressure during the operation. This avoids the need to connect other instruments during the operation, reduces the difficulty of the operation and the risk of infection, and improves the efficiency and safety of the operation.

[0029] In some embodiments, the ureteroscope injector further includes a first control component 600 and a second control component 700. The first control component 600 is connected to the suction line 400 and is used to control the opening or closing of the suction line 400. The second control component 700 is connected to the injection line 200 and is used to control the opening or closing of the injection line 200. This allows for precise control of the opening and closing of the injection line 200 and the suction line 400 during the procedure, meeting different needs during the surgery.

[0030] In some embodiments, the first control component 600 may include a back suction control valve 610, which is connected to the back suction line 400 and is used to control the on / off state of the back suction line 400.

[0031] The aspiration control valve 610 can be either a solenoid valve or a manual valve, allowing medical staff to flexibly control it according to surgical needs. When aspiration is required, opening the aspiration control valve 610 allows the negative pressure generated by the aspiration pump 500 to draw saline solution and debris from the patient's body. When aspiration is not needed, closing the aspiration control valve 610 avoids unnecessary fluid loss and energy consumption, enabling medical staff to more precisely control the aspiration process and further improve surgical efficiency and safety.

[0032] In some embodiments, the first control component 600 further includes a first check valve 620, which is connected to the back suction line 400 and is used to restrict the flow of liquid in the back suction line 400 from the output end to the input end.

[0033] The first one-way valve 620 can be a spring-loaded one-way valve or a duckbill valve, allowing liquid to flow only from the input end to the output end of the back suction line 400, preventing liquid from flowing back into the patient's body when the back suction pump 500 stops working. It also prevents liquid from being sent from the injection line 200 into the back suction line 400 when the injection pump 300 is working, protecting the back suction pump 500 and ensuring the safety and reliability of the procedure.

[0034] In some embodiments, the first control component 600 further includes a first pressure sensor 630, which is connected to the suction line 400 and used to detect the pressure value of the liquid in the suction line 400. The first pressure sensor 630 may have a mechanical pointer or a digital display screen to provide feedback on the pressure value, allowing medical personnel to promptly understand the suction status, determine the pressure state during surgery, and adjust the operating power of the suction pump 500 or the water injection pump 300 according to the pressure value. This ensures that the suction operation effectively removes the liquid without causing injury to the patient due to excessive negative pressure.

[0035] It is understood that the order in which the back suction control valve 610, the first check valve 620, and the first pressure sensor 630 are arranged on the back suction pipeline 400 can be arbitrary. For example, from the input end to the output end of the back suction pipeline 400, the back suction control valve 610, the first check valve 620, and the first pressure sensor 630 can be arranged sequentially to avoid the operation of the water pump 300 affecting the detection value of the first pressure sensor 630. Alternatively, the first check valve 620, the back suction control valve 610, and the first pressure sensor 630 can be arranged sequentially, or the first pressure sensor 630, the back suction control valve 610, and the first check valve 620 can be arranged sequentially, etc. This embodiment does not impose any restrictions on this. As long as the back suction control valve 610 can control the opening and closing between the back suction line 400 and the back suction pump 500, the first one-way valve 620 can restrict the flow of liquid in the back suction line 400 from the output end to the input end, and the first pressure sensor 630 can accurately detect the pressure value of the liquid in the back suction line 400, it is sufficient.

[0036] like Figure 2 and Figure 3 As shown, in some embodiments, the first control component 600 may further include a first integrated base 640, the first integrated base 640 being provided with a back suction channel 641, the back suction channel 641 having a first input port 641a and a first output port 641b, the output end of the back suction pipeline 400 being connected to the first input port 641a, the back suction pump 500 being connected to the first output port 641b, and the back suction control valve 610, the first check valve 620, and the first pressure sensor 630 all being disposed in the first integrated base 640.

[0037] The first integrated base 640 can be a block structure of any geometric shape, such as circular or rectangular. The back suction channel 641 is a cavity structure formed on the first integrated base 640, used to guide the liquid flow within the back suction pipe 400. The first inlet 641a and the first outlet 641b serve as the two ends of the back suction channel 641, respectively, and are connected to the back suction pipe 400 and the back suction pump 500, ensuring that the liquid can smoothly enter the back suction pump 500 from the back suction pipe 400. Both the first inlet 641a and the first outlet 641b can be equipped with pipe connectors to facilitate connection between the back suction pipe 400 and the back suction pump 500.

[0038] The suction control valve 610, the first check valve 620, and the first pressure sensor 630 can all be installed on the first integrated base 640, so that the connection between the components is more compact, reducing the number of pipeline connection points, thereby reducing the risk caused by loose connections or leaks. It also facilitates the preoperative disinfection of the entire first control component 600, and makes the overall structure of the first control component 600 more compact, occupying less space, which is conducive to flexible arrangement and operation during the operation.

[0039] Specifically, the back suction control valve 610 is rotatably connected to the first integrated base 640. The back suction control valve 610 is provided with a first through hole. By rotating the back suction control valve 610, the first through hole is connected to or disconnected from the back suction channel 641, so as to realize the opening and closing of the back suction channel 641.

[0040] A first one-way valve 620 may be disposed within a suction channel 641. The first one-way valve 620 may include a first valve core 621, a first limiting ring 622, and a first spring 623. The first limiting ring 622 may be fixed within the suction channel 641 by screws. The first valve core 621 is movably connected to the side of the first limiting ring 622 facing the first inlet 641a via the first spring 623. The suction channel 641 has a stepped structure, forming a first sealing cone surface on the side of the first valve core 621 facing away from the first limiting ring 622. Under the action of the first spring 623, the first valve core 621 abuts against the first sealing cone surface, thereby disconnecting the suction channel 641. When liquid flows from the first inlet 641a towards the first outlet 641b, it presses the first valve core 621 to move towards the first limiting ring 622, separating it from the first sealing cone surface, thus opening the suction channel 641 and allowing the liquid to flow smoothly through.

[0041] The first integrated base 640 may also be provided with a first threaded hole communicating with the back suction channel 641. The first pressure sensor 630 is threadedly connected to the first threaded hole and partially extends into the back suction channel 641 so as to contact the liquid in the back suction channel 641 and detect the liquid pressure value in the back suction channel 641.

[0042] In some embodiments, the second control component 700 may include a water injection control valve 710, which is connected to the water injection pipeline 200 and is used to control the on / off state of the water injection pipeline 200.

[0043] The water injection control valve 710 can be either a solenoid valve or a manual valve, allowing medical personnel to flexibly control it according to surgical needs. When water injection is required, it maintains pressure balance within the renal pelvis, irrigates the surgical field to remove debris, and stabilizes the field of vision for the flexible ureteroscope. When water injection is not needed or the injection status needs adjustment, the water injection control valve 710 is closed.

[0044] In some embodiments, the second control component 700 further includes a second check valve 720 connected to the water injection line 200 for restricting the flow of liquid in the water injection line 200 from the output end to the input end.

[0045] The second one-way valve 720 can be a spring-loaded one-way valve or a duckbill valve, which only allows liquid to flow from the input end to the output end of the water injection line 200, preventing backflow of liquid, ensuring the smooth implementation of the water injection function, and preventing the liquid on the side of the water injection line 200 and the water injection pump 300 from being sucked into the back suction line 400 when the back suction pump 500 is working, thus ensuring the safety and reliability of the operation.

[0046] In some embodiments, the second control component 700 further includes a second pressure sensor 730, which is connected to the water injection pipe 200 and is used to detect the pressure value of the liquid in the water injection pipe 200.

[0047] The second pressure sensor 730 can also have a mechanical pointer or a digital display screen to provide feedback on the pressure value, so that medical staff can understand the water injection situation in a timely manner, judge the pressure status during the operation, and adjust the operating power of the water injection pump 300 according to the pressure value, so as to reasonably adjust the working intensity of the water injection pump 300, ensure that the water injection pressure is appropriate, and avoid complications caused by excessive water injection leading to excessive pressure in the renal pelvis.

[0048] Similarly, the order in which the water injection control valve 710, the second check valve 720, and the second pressure sensor 730 are installed on the water injection pipeline 200 can be arbitrary, and this embodiment does not impose any restrictions on this.

[0049] like Figure 2 and Figure 4 As shown, in some embodiments, the second control component 700 may further include a second integrated base 740, the second integrated base 740 being provided with a water injection channel 741, the water injection channel 741 having a second input port 741a and a second output port 741b, the output end of the water injection pipeline 200 being connected to the second input port 741a, the water injection pump 300 being connected to the second output port 741b, and the water injection control valve 710, the second check valve 720, and the second pressure sensor 730 all being disposed in the second integrated base 740.

[0050] The second integrated base 740 can be a block structure of any geometric shape, such as circular or rectangular. The water injection channel 741 is a cavity structure formed on the second integrated base 740 to guide the liquid flow within the water injection pipeline 200. The second inlet 741a and the second outlet 741b serve as the two ends of the water injection channel 741, respectively, and are connected to the water injection pipeline 200 and the water injection pump 300 to ensure that the liquid can smoothly enter the water injection pump 300 from the water injection pipeline 200. Both the second inlet 741a and the second outlet 741b can be equipped with pipe connectors to facilitate the connection between the water injection pipeline 200 and the water injection pump 300.

[0051] The water injection control valve 710, the second check valve 720, and the second pressure sensor 730 can all be installed on the second integrated base 740, which makes the connection between the components more compact, reduces the number of pipeline connection points, thereby reducing the risk caused by loose connections or leaks, facilitates preoperative disinfection of the entire second control assembly 700, and makes the overall structure of the second control assembly 700 more compact, occupying less space, which is conducive to flexible arrangement and operation during the operation.

[0052] Specifically, the water injection control valve 710 is rotatably connected to the second integrated base 740. The water injection control valve 710 is provided with a second through hole. By rotating the water injection control valve 710, the second through hole is connected to or disconnected from the water injection channel 741, so as to realize the opening and closing of the water injection channel 741.

[0053] The second one-way valve 720 can be disposed within the water injection channel 741. The second one-way valve 720 may include a second valve core 721, a second limiting ring 722, and a second spring 723. The second limiting ring 722 can be fixed within the water injection channel 741 by screws. The second valve core 721 is movably connected to the side of the second limiting ring 722 facing the second inlet 741a via the second spring 723. The water injection channel 741 has a stepped structure, forming a second sealing cone surface on the side of the second valve core 721 facing away from the second limiting ring 722. Under the action of the second spring 723, the second valve core 721 abuts against the second sealing cone surface, thereby disconnecting the water injection channel 741. When liquid flows from the second inlet 741a to the second outlet 741b, it will press the second valve core 721 to move towards the second limiting ring 722, separating it from the second sealing cone surface, thereby opening the water injection channel 741 and allowing the liquid to flow smoothly through.

[0054] The second integrated base 740 may also be provided with a second threaded hole that communicates with the water injection channel 741. The second pressure sensor 730 is threadedly connected to the second threaded hole and partially extends into the water injection channel 741 so as to contact the liquid in the water injection channel 741 and detect the liquid pressure value in the water injection channel 741.

[0055] The first integrated base 640 and the second integrated base 740 can be independent of each other or connected to each other as a whole structure. For example, the first integrated base 640 and the second integrated base 740 are integrally formed, which further reduces the complexity of the structure, improves the hygienic performance of the device, and is more suitable for use in medical environments.

[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ureteroscope injector, characterized in that, The device includes an infusion line, a water injection line, a water injection pump, a backflow line, and a backflow pump. The infusion line is used to connect to the water injection valve of a flexible ureteroscope. The infusion line has its input end connected to the water injection pump and its output end connected to the infusion line. The water injection pump is used to inject liquid into the water injection line. The backflow line has its input end connected to the infusion line and its output end connected to the backflow pump. The backflow pump is used to backflow the liquid in the backflow line.

2. The ureteroscope infuser according to claim 1, characterized in that, The ureteroscope injector also includes a first control component and a second control component. The first control component is connected to the aspiration line and is used to control the opening or closing of the aspiration line. The second control component is connected to the injection line and is used to control the opening or closing of the injection line.

3. The ureteroscope infuser according to claim 2, characterized in that, The first control component includes a back suction control valve, which is connected to the back suction pipeline and is used to control the on / off state of the back suction pipeline.

4. The ureteroscope injector according to claim 3, characterized in that, The first control component further includes a first one-way valve connected to the back suction line, which restricts the flow of liquid in the back suction line from the output end of the back suction line toward the input end of the back suction line.

5. The ureteroscope infuser according to claim 4, characterized in that, The first control component also includes a first pressure sensor connected to the back suction line for detecting the pressure value of the liquid in the back suction line.

6. The ureteroscope infuser according to claim 5, characterized in that, The first control component further includes a first integrated base, which is provided with a back suction channel. The back suction channel has a first inlet and a first outlet. The output end of the back suction pipeline is connected to the first inlet, and the back suction pump is connected to the first outlet. The back suction control valve, the first check valve, and the first pressure sensor are all disposed on the first integrated base.

7. The ureteroscope injector according to claim 2, characterized in that, The second control component includes a water injection control valve, which is connected to the water injection pipeline and is used to control the on / off state of the water injection pipeline.

8. The ureteroscope injector according to claim 7, characterized in that, The second control component further includes a second check valve connected to the water injection pipeline for restricting the flow of liquid in the water injection pipeline from the output end of the water injection pipeline toward the input end of the water injection pipeline.

9. The ureteroscope injector according to claim 8, characterized in that, The second control component also includes a second pressure sensor connected to the water injection pipeline for detecting the pressure value of the liquid in the water injection pipeline.

10. The ureteroscope injector according to claim 9, characterized in that, The second control component also includes a second integrated base, which is provided with a water injection channel. The water injection channel has a second input port and a second output port. The input end of the water injection pipeline is connected to the second output port, and the water injection pump is connected to the second input port. The water injection control valve, the second check valve, and the second pressure sensor are all located in the second integrated base.

Images