Flexible ureteroscope perfusion negative pressure controller

Abstract

The utility model relates to the technical field of tools for flexible ureteroscope operations, and provides a flexible ureteroscope perfusion negative pressure controller which comprises a flexible ureteroscope connecting part, a water inlet channel, a negative pressure channel and an adjusting valve, the flexible ureteroscope connecting part is used for being detachably connected with a flexible ureteroscope handle connector, and the water inlet channel and the negative pressure channel are communicated with the flexible ureteroscope handle connector. The water inlet channel is used for being connected with a filling pump, the negative pressure channel is used for being connected with a negative pressure aspirator, and the adjusting valve is connected with the water inlet channel and the negative pressure channel and used for adjusting the size of the water inlet channel and the size of the negative pressure channel. The water inlet channel, the negative pressure channel and the adjusting valve are arranged, the water inlet channel is connected with the filling pump, the negative pressure channel is connected with the negative pressure aspirator, part of water in the flexible ureteroscope is discharged while water is injected by adjusting the adjusting valve, water inlet and water outlet are dynamically controlled, and certain balance between water inlet and water outlet is kept. The operation view is kept clear; and the renal pelvis pressure is continuously reduced.

Description

Technical Field

[0001] The present application relates to the technical field of tools for ureteroscope surgery, and in particular to a ureteroscope irrigation negative pressure controller. Background Art

[0002] Ureteroscopy is an emerging technology. Ureteroscopy combined with holmium laser is particularly suitable for the treatment of upper urinary tract stones and has been widely used in clinical practice. The advantages of this technology are that lithotripsy through natural cavities is relatively non-invasive, has a high stone clearance rate, and is easy to operate. In ureteroscopic surgery, in order to obtain a good visual field and avoid excessive pressure in the renal pelvis due to excessive water injection, which increases the risk of kidney rupture and infection, it is often necessary to frequently and accurately adjust the water injection volume. For example, when the ureteroscope passes over a narrow or tortuous section of the ureter, a large amount of water is required to flush the ureteral cavity in front of the soft scope; when crushing stones, it is necessary to continuously adjust the water injection volume according to the presence or absence of bleeding or the degree of stone powderization to maintain a clear field of vision; a large amount of water injection is also required when flushing out the broken stones through the soft scope sheath; but when the stone is sheathed, the water injection volume often needs to be reduced. This frequent and precise adjustment of the water injection volume makes it difficult to meet the water supply requirements of a simple water pump.

[0003] Existing ureteroscope surgeries mostly use manual water pumping to adjust the water injection volume, but manual water pumping requires close cooperation between the assistant and the surgeon, which requires a high level of proficiency of the assistant. The problem of untimely changes in water injection volume is often encountered, which also increases labor costs. In addition, due to the small operating channel of the existing ureteroscope controller, it is usually only equipped with a single water inlet or negative pressure function, which makes it difficult to discharge suspended matter while supplying water to the ureter, affecting the field of vision. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a ureteroscope irrigation negative pressure controller, aiming to solve the shortcomings of the existing ureteroscope controller that only has a single water inlet or negative pressure function.

[0005] The technical solution adopted by the present application to solve the technical problem is as follows: A ureteroscope irrigation negative pressure controller includes a soft endoscope connecting portion, wherein the soft endoscope connecting portion is used to be detachably connected to a soft endoscope handle interface;

[0006] A water inlet channel, the water inlet channel is communicated with the soft mirror handle interface, and the water inlet channel is used to connect to an irrigation pump;

[0007] A negative pressure channel, the negative pressure channel is communicated with the soft mirror handle interface, and the negative pressure channel is used to connect a negative pressure aspirator;

[0008] A regulating valve, wherein the regulating valve is connected to the water inlet channel and the negative pressure channel respectively, and the regulating valve is used to adjust the size of the water inlet channel and the size of the negative pressure channel.

[0009] Furthermore, a water inlet and a drain outlet are provided on the soft mirror connecting portion, the water inlet and the drain outlet are respectively connected to the soft mirror handle interface, the water inlet channel is connected to the water inlet, and the negative pressure channel is connected to the drain outlet.

[0010] Furthermore, the water inlet and the drain outlet are arranged at intervals.

[0011] Furthermore, the water inlet is in the shape of a ring, and the drain outlets are arranged at intervals inside the water inlet;

[0012] Alternatively, the drain outlet is annular in shape, and the water inlets are arranged at intervals inside the drain outlet.

[0013] Furthermore, the ureteroscope irrigation negative pressure controller also includes: a separator tube, which is arranged on the soft endoscope connecting part and is arranged toward the soft endoscope handle interface, and the water inlet and the drain outlet are separated by the separator tube.

[0014] Furthermore, the separation tube gradually narrows in the direction toward the soft mirror handle interface.

[0015] Further, the regulating valve comprises: a water inlet valve, the water inlet valve is connected to the water inlet channel, and the water inlet valve is used to adjust the size of the water inlet channel;

[0016] A negative pressure valve is connected to the negative pressure channel and is used to adjust the size of the negative pressure channel.

[0017] Furthermore, the ureteroscope irrigation negative pressure controller also includes: a proportional controller, which is detachably connected to the water inlet valve and the negative pressure valve respectively, and is used to control the ratio of the valve size of the water inlet valve to the valve size of the negative pressure valve.

[0018] Furthermore, the water inlet valve and the negative pressure valve are both rotary regulating valves.

[0019] The proportional controller comprises: two gears, the two gears are respectively arranged on the handle of the water inlet valve and the handle of the negative pressure valve, and the two gears are meshed with each other.

[0020] Furthermore, the ureteroscope irrigation negative pressure controller also includes: two flow valves, which are detachably connected to the water inlet channel and the negative pressure channel respectively, and are used to measure the water flow in the water inlet channel and the water flow in the negative pressure channel respectively.

[0021] Compared with the prior art, the utility model provides a water inlet channel, a negative pressure channel and a regulating valve, and connects the water inlet channel to an infusion pump, and the negative pressure channel to a negative pressure aspirator. By adjusting the regulating valve, water is injected and the water inside the ureteroscope is discharged at the same time, and the water inlet and outlet are dynamically controlled to achieve a certain balance between water inlet and water outlet, thereby maintaining a clear surgical field of view and continuously reducing the renal pelvic pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a ureteroscope irrigation negative pressure controller provided in this embodiment;

[0024] Figure 2 A schematic diagram of the overall structure of another embodiment of the ureteroscope irrigation negative pressure controller provided in this embodiment;

[0025] Figure 3 The present invention is a schematic structural diagram of a water inlet channel, a negative pressure channel and a regulating valve provided in an embodiment.

[0026] In the figure: 100, soft mirror connection part; 101, water inlet; 102, water outlet; 201, water inlet channel; 301, negative pressure channel; 400, regulating valve; 401, water inlet valve; 402, negative pressure valve; 501, separator tube; 601, proportional controller; 701, gear; 801, flow valve. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0031] The utility model provides Figures 1 to 3 As shown in the figure, a ureteroscope irrigation negative pressure controller is intended to solve the shortcomings of existing ureteroscope controllers that only have a single water inlet or negative pressure function.

[0032] The ureteroscope irrigation negative pressure controller mainly includes: a soft endoscope connecting part 100, a water inlet channel 201, a negative pressure channel 301 and a regulating valve 400.

[0033] The soft endoscope connection part 100 is used to be detachably connected to the soft endoscope handle interface. The soft endoscope connection part 100 includes a threaded fastener and a connecting pipe. The threaded fastener is used to be fixed on the ureteroscope. The water inlet channel 201 and the negative pressure channel 301 are respectively connected to the connecting pipe. Among them, the water inlet channel 201 is connected to the irrigation pump to provide water to the water inlet channel 201, which is used to supply water to the ureteroscope; the negative pressure channel 301 is used to connect the negative pressure aspirator to provide negative pressure to the negative pressure channel 301, which is used to discharge the water in the negative pressure channel 301 and the ureteroscope. The regulating valve 400 is respectively connected to the water inlet channel 201 and the negative pressure channel 301, and the regulating valve 400 is used to adjust the size of the water inlet channel 201 and the size of the negative pressure channel 301. It is understandable that the water inlet channel 201 can provide water to the patient's ureter through the ureteroscope, so that the pressure in the renal pelvis increases to obtain a good field of view. At the same time, since there are suspended objects in the patient's renal pelvis, which will affect the field of view of medical staff, and the osmotic pressure of the liquid with suspended objects is high, the suspended objects will gradually move toward the ureteroscope-negative pressure channel 301, and the negative pressure aspirator can provide negative pressure to the negative pressure channel 301 to gradually discharge the suspended objects. Under long-term water supply and drainage work, a large amount of suspended objects can be gradually discharged, making the field of view clearer.

[0034] When the water flow in the water inlet channel 201 is greater than the water flow in the negative pressure channel 301, the pressure in the patient's renal pelvis increases and the amount of water injected increases; when the water flow in the water inlet channel 201 is less than the water flow in the negative pressure channel 301, the pressure in the patient's renal pelvis decreases and the amount of water injected decreases; when the water flow in the water inlet channel 201 is equal to the water flow in the negative pressure channel 301, the pressure in the patient's renal pelvis remains unchanged and the amount of water injected remains unchanged. The surgeon can adjust the amount of water injected by controlling the regulating valve 400 alone, and can adjust the amount of water injected in real time according to his own needs during surgery without the need for the cooperation of an assistant, which greatly reduces the problem of untimely changes in the amount of water injected and reduces labor costs.

[0035] Existing ureteroscope surgeries mostly use manual water pumping to adjust the water injection volume, but manual water pumping requires close cooperation between the assistant and the surgeon, which requires a high level of proficiency of the assistant. The problem of untimely changes in water injection volume is often encountered, which also increases labor costs. In addition, due to the small operating channel of the existing ureteroscope controller, it is usually only equipped with a single water inlet or negative pressure function, which makes it difficult to discharge suspended matter while supplying water to the ureter, affecting the field of vision.

[0036] The utility model provides a water inlet channel 201, a negative pressure channel 301 and a regulating valve 400, and connects the water inlet channel 201 to an infusion pump, and connects the negative pressure channel 301 to a negative pressure aspirator. By adjusting the regulating valve 400, water can be injected and part of the water in the ureteroscope can be discharged at the same time, so that the pressure in the renal pelvis is increased to obtain a good field of view, and at the same time, the water in the ureteroscope and the renal pelvis is renewed to achieve a better field of view.

[0037] In some embodiments, Figures 1 to 3 As shown in the figure, a water inlet 101 and a drain outlet 102 are provided on the soft mirror connecting part 100, and the water inlet 101 and the drain outlet 102 are both provided on the connecting pipe, the water inlet 101 and the drain outlet 102 are respectively connected to the soft mirror handle interface, the water inlet channel 201 is connected to the water inlet 101, and the negative pressure channel 301 is connected to the drain outlet 102.

[0038] In some embodiments, Figures 1 to 3 As shown in FIG. 1 , the water inlet 101 and the water outlet 102 are spaced apart from each other.

[0039] In some embodiments, Figure 2 As shown in , the shape of the water inlet 101 is annular, and the drain outlets 102 are arranged in the water inlet 101 at intervals;

[0040] Alternatively, the drain port 102 is annular in shape, and the water inlet 101 is arranged at intervals in the drain port 102. Like the smoke pipe of a balanced water heater, the liquid in the ureteroscope is replaced by the external liquid (water from the irrigation pump), thereby removing suspended matter and maintaining a clear field of vision. Preferably, the drain port 102 is arranged at intervals in the water inlet 101, so that the water flow sprayed from the water inlet 101 to the ureteroscope is more concentrated, better impacting the ureteroscope and removing suspended matter.

[0041] In some embodiments, Figure 1 to Figure 2 As shown in, the ureteroscope irrigation negative pressure controller also includes: a separator tube 501, which is arranged on the soft endoscope connecting part 100, and the separator tube 501 is arranged toward the soft endoscope handle interface, and the water inlet 101 and the drain outlet 102 are separated by the separator tube 501 (the water inlet 101 and the drain outlet 102 are respectively arranged on the outer surface of the separator tube 501 and the inner surface of the separator tube 501, or the water inlet 101 and the drain outlet 102 are respectively arranged on the inner surface of the separator tube 501 and the outer surface of the separator tube 501), and the separator tube 501 can be phase-extended to extend the length of the connecting tube, so that the water inlet 101 and the drain outlet 102 are located inside the ureteroscope, reducing the distance between the water inlet 101 and the drain outlet 102 and the patient's renal pelvis, and increasing the efficiency of discharging suspended matter in the patient's renal pelvis.

[0042] In some embodiments, Figure 2 As shown in , the separation tube 501 gradually narrows in the direction toward the flexible endoscope handle interface, which can increase the pressure of the water flow sprayed from the water inlet 101 to the ureteroscope, better impact the ureteroscope, and remove suspended matter.

[0043] In some embodiments, Figure 3As shown in , the regulating valve 400 includes: a water inlet valve 401, the water inlet valve 401 is connected to the water inlet channel 201, and the water inlet valve 401 is used to adjust the size of the water inlet channel 201;

[0044] Negative pressure valve 402, which is connected to negative pressure channel 301, is used to adjust the size of negative pressure channel 301. By controlling the water inlet valve 401 and the negative pressure valve 402, the ratio of the water inlet valve 401 and the negative pressure valve 402 can be changed, thereby controlling the ratio of the water flow in the water inlet channel 201 and the water flow in the negative pressure channel 301.

[0045] In some embodiments, Figure 3 As shown in , the ureteroscope irrigation negative pressure controller also includes: a proportional controller 601, which is detachably connected to the water inlet valve 401 and the negative pressure valve 402, respectively, and is used to control the ratio of the valve size of the water inlet valve 401 and the valve size of the negative pressure valve 402. Through the proportional controller 601, the water injection amount can be adjusted without adjusting the water inlet valve 401 and the negative pressure valve 402 separately. Preferably, the proportional controller 601 increases the water inlet valve 401 while reducing the negative pressure valve 402; conversely, the proportional controller 601 increases the negative pressure valve 402 while reducing the water inlet valve 401.

[0046] In some embodiments, Figure 3 As shown in FIG. 4 , the water inlet valve 401 and the negative pressure valve 402 are both rotary regulating valves 400.

[0047] The proportional controller 601 includes: two gears 701, which are respectively arranged on the handle of the water inlet valve 401 and the handle of the negative pressure valve 402, and the two gears 701 are meshed with each other, so that the proportional controller 601 increases the water inlet valve 401 while reducing the negative pressure valve 402; conversely, the proportional controller 601 increases the negative pressure valve 402 while reducing the water inlet valve 401. The water inlet valve 401 and the negative pressure valve 402 can be electrically controlled valves or mechanical valves. Similar structures that can realize the control method belong to conventional replacements and belong to the protection scope of this application, and are not described in detail in this application.

[0048] In some embodiments, Figure 3 As shown in , the ureteroscope irrigation negative pressure controller also includes: two flow valves 801, the two flow valves 801 are detachably connected to the water inlet channel 201 and the negative pressure channel 301 respectively, and the two flow valves 801 are used to measure the water flow in the water inlet channel 201 and the water flow in the negative pressure channel 301 respectively.

[0049] In summary, a ureteroscope irrigation negative pressure controller is provided, including a flexible mirror connection part, a water inlet channel, a negative pressure channel and a regulating valve, the flexible mirror connection part is used to be detachably connected to the flexible mirror handle interface, the water inlet channel and the negative pressure channel are respectively connected to the flexible mirror handle interface, the water inlet channel is used to connect the irrigation pump, the negative pressure channel is used to connect the negative pressure aspirator, the regulating valve is respectively connected to the water inlet channel and the negative pressure channel, and the regulating valve is used to adjust the size of the water inlet channel and the size of the negative pressure channel. The utility model sets a water inlet channel, a negative pressure channel and a regulating valve, connects the water inlet channel to the irrigation pump, and the negative pressure channel to the negative pressure aspirator, and by adjusting the regulating valve, water is discharged while the water inside the ureteroscope is injected, and the water inlet and water outlet are dynamically controlled to achieve a certain balance between water inlet and water outlet, keep the surgical field clear and continuously reduce the renal pelvic pressure.

[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A ureteroscope irrigation negative pressure controller, characterized in that: include: A soft mirror connecting portion, the soft mirror connecting portion is used to be detachably connected to an external soft mirror handle interface; A water inlet channel, the water inlet channel is communicated with the soft mirror handle interface, and the water inlet channel is used to connect to an irrigation pump; A negative pressure channel, the negative pressure channel is communicated with the soft mirror handle interface, and the negative pressure channel is used to connect a negative pressure aspirator; A regulating valve is connected to the water inlet channel and the negative pressure channel respectively, and the regulating valve is used to adjust the size of the water inlet channel and the size of the negative pressure channel.

2. The ureteroscope irrigation negative pressure controller according to claim 1, characterized in that: The soft mirror connecting part is provided with a water inlet and a drain outlet, the water inlet and the drain outlet are respectively communicated with the soft mirror handle interface, the water inlet channel is communicated with the water inlet, and the negative pressure channel is communicated with the drain outlet.

3. The ureteroscope irrigation negative pressure controller according to claim 2, characterized in that: The water inlet and the drain outlet are arranged at intervals.

4. The ureteroscope irrigation negative pressure controller according to claim 2, characterized in that: The water inlet is in the shape of a ring, and the drain outlets are arranged in the water inlet at intervals; Alternatively, the drain outlet is annular in shape, and the water inlets are arranged at intervals inside the drain outlet.

5. The ureteroscope irrigation negative pressure controller according to claim 4, characterized in that: The ureteroscope irrigation negative pressure controller also includes: a separator tube, which is arranged on the soft endoscope connection part and is arranged toward the soft endoscope handle interface, and the water inlet and the drain outlet are separated by the separator tube.

6. The ureteroscope irrigation negative pressure controller according to claim 5, characterized in that: The separation tube gradually narrows in the direction toward the soft mirror handle interface.

7. The ureteroscope irrigation negative pressure controller according to claim 1, characterized in that: The regulating valve comprises: a water inlet valve, the water inlet valve is connected to the water inlet channel, and the water inlet valve is used to adjust the size of the water inlet channel; A negative pressure valve is connected to the negative pressure channel and is used to adjust the size of the negative pressure channel.

8. The ureteroscope irrigation negative pressure controller according to claim 7, characterized in that: The ureteroscope irrigation negative pressure controller also includes: a proportional controller, which is detachably connected to the water inlet valve and the negative pressure valve respectively, and is used to control the ratio of the valve size of the water inlet valve to the valve size of the negative pressure valve.

9. The ureteroscope irrigation negative pressure controller according to claim 8, characterized in that: The water inlet valve and the negative pressure valve are both rotary regulating valves. The proportional controller comprises: two gears, the two gears are respectively arranged on the handle of the water inlet valve and the handle of the negative pressure valve, and the two gears are meshed with each other.

10. The ureteroscope irrigation negative pressure controller according to claim 1, characterized in that: The ureteroscope irrigation negative pressure controller also includes: two flow valves, which are detachably connected to the water inlet channel and the negative pressure channel respectively, and are used to measure the water flow in the water inlet channel and the water flow in the negative pressure channel respectively.

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