Endoscope power system control method and endoscope power system

Abstract

The invention discloses an endoscope power system control method and an endoscope power system, and relates to the technical field of medical treatment, and the endoscope power system control method comprises the following steps: step S100: obtaining the working state of a foot switch, and executing step S200 under the condition that the foot switch is in an activated state; s200, real-time pressure in the target cavity is obtained, the real-time pressure is compared with preset pressure, and the step S300 is carried out under the condition that the real-time pressure is not smaller than a% of the preset pressure; and S300, obtaining the working state of the filling pump, starting the suction pump or not stopping the suction pump under the condition that the filling pump conveys liquid into the target cavity, and returning to the step S200. According to the design of the control method, the pressure in the target cavity can meet the requirement all the time, the target cavity is in an effective expansion state, a good view can be provided, and therefore the operation success rate is increased.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and more particularly, to an endoscopic power system control method and an endoscopic power system. Background Art

[0002] The power system for gynecological endoscopes is applicable to hysteroscopy examinations and surgeries. When removing intrauterine tissues including submucous myomas and endometrial polyps, it injects liquid to expand the uterus, flushes and aspirates the intrauterine liquid, blood clots and tissue fragments, and can also monitor the volume difference between the liquid injected into and aspirated out of the uterus.

[0003] The inventors found in their research that the existing endoscopic power system control methods have at least the following disadvantages:

[0004] 1. When the uterine cavity is not fully distended and aspirated at a large flow rate, it will make it more difficult to distend the uterus, and may cause problems such as uterine cavity collapse and affect the patient's safety.

[0005] 2. When the aspiration of the knife head for the myoma tissue is insufficient, the cutting efficiency will be low and the operation time will be prolonged.

[0006] Obviously, in order to better utilize the endoscopic power system for related surgeries, a simulation model can be used to simulate the operation method related to the endoscopic power system. The simulation operation process can be carried out in the target cavity of the simulation model, and the simulation model can simulate the uterine structure. Summary of the Invention

[0007] The objectives of the present invention include, for example, providing an endoscopic power system control method and an endoscopic power system, which can ensure that during the surgical process of simulating the resection of uterine fibroids and other tissues, the uterine cavity is always in an effective distended state, which not only does not easily cause discomfort to the patient, but also can provide a good field of view and improve the success rate of the surgery.

[0008] The embodiments of the present invention can be implemented as follows:

[0009] In a first aspect, the present invention provides an endoscopic power system control method, which includes the following steps:

[0010] Step S100: Obtain the working state of the foot switch, and perform Step S200 under the condition that the foot switch is in an activated state;

[0011] Step S200: Obtain the real-time pressure in the target cavity, compare the real-time pressure with the preset pressure, and perform Step S300 under the condition that the real-time pressure is not less than a% of the preset pressure;

[0012] Step S300: Obtain the working state of the perfusion pump. When the perfusion pump is in the condition of delivering liquid to the target cavity, start the suction pump or do not stop the suction pump, and return to step S200.

[0013] In an optional implementation, in step S200, the value of a% is not less than 60%.

[0014] In an optional implementation, in step S200, obtain the real-time pressure in the target cavity by using a pressure sensor built into the target cavity or externally connected.

[0015] In an optional implementation, in step S200, when the real-time pressure is less than a% of the preset pressure, do not start the suction pump or stop the suction pump, and return to step S200;

[0016] Or / and, in step S300, when the perfusion pump is in the closed state, do not start the suction pump or stop the suction pump, and return to step S200.

[0017] In an optional implementation, in step S100, step S200, and step S300, when the pressure relief valve at the pump outlet of the suction pump is in the open state, do not start the suction pump or stop the suction pump.

[0018] In an optional implementation, in step S300, when the perfusion pump is in the condition of delivering liquid to the target cavity, it further includes step S400: Obtain the real-time negative pressure value of the suction pump. When the real-time negative pressure value is not less than the set negative pressure value, do not start the suction pump or stop the suction pump, and return to step S200.

[0019] In an optional implementation, in step S400, when the real-time negative pressure value is less than the set negative pressure value, start the suction pump or do not stop the suction pump.

[0020] In an optional implementation, in step S400, when the real-time negative pressure value is less than the set negative pressure value, start the suction pump or do not stop the suction pump under the condition that the pressure relief valve connected to the pump outlet of the suction pump is in the closed state.

[0021] In an optional implementation, in step S300, when the suction pump is started, automatically adjust the flow rate of the suction pump according to the magnitude of the real-time negative pressure value, and the magnitude of the flow rate of the suction pump is inversely proportional to the magnitude of the real-time negative pressure value.

[0022] In an optional implementation, in step S300:

[0023] When the real-time negative pressure value is (0 - 20%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 80% - 100% of its maximum working flow rate;

[0024] When the real-time negative pressure value is (20% - 60%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 60% - 80% of its maximum working flow rate;

[0025] When the real-time negative pressure value is (60% - 80%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 40% - 60% of its maximum working flow rate;

[0026] When the real-time negative pressure value is (80% - 100%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 0 - 40% of its maximum working flow rate.

[0027] In an alternative embodiment, in the step S100, the operation of activating the foot switch includes stepping on the foot switch.

[0028] In a second aspect, an endoscopic power system provided by an embodiment of the present application is applied to the endoscopic power system control method as described above, and includes:

[0029] A main unit, a handle, a cutter head, a perfusion pump, a suction pump, a foot switch, and a liquid collection bottle; the cutter head is connected to the main unit through the handle; the perfusion pump and the suction pump are both installed in the main unit, the suction pump is connected to the liquid collection bottle, and the liquid collection bottle is connected to the handle; the perfusion pump, the suction pump, and the foot switch are all communicatively connected to the main unit.

[0030] The beneficial effects of the embodiments of the present invention include, for example:

[0031] In summary, for the endoscopic power system control method provided in this embodiment, after the power system is started, a liquid such as normal saline is input into the target cavity by the perfusion pump, so that the pressure in the target cavity increases and the target cavity expands. In order to ensure that the pressure in the target cavity is in a dynamic equilibrium state during the operation, the perfusion pump and the aspiration pump need to cooperate. That is to say, during the operation, the perfusion pump inputs liquid into the target cavity. After the aspiration pump is started, while adsorbing the tissue cut from the target cavity into the cutter head, it also sucks in part of the liquid into the cutter head and discharges it from the target cavity, resulting in a decrease in the liquid in the target cavity. The liquid input by the perfusion pump and the liquid discharged by the aspiration pump need to meet the set requirements to ensure the stability of the pressure in the target cavity and provide a safe surgical environment. Therefore, when adjusting the working state of the aspiration pump, first obtain the working state of the foot switch communicatively connected to the aspiration pump. When the foot switch is in the activated state, the aspiration pump is in a state where it can be started but is not directly started. Instead, it first judges whether the pressure in the target cavity meets the requirements and whether the perfusion pump is in the working state. In this way, only when the pressure in the target cavity is not less than a% of the preset pressure and the perfusion pump is in the on state, the aspiration pump is started or the aspiration pump is kept in the started state, and the aspiration pump is used to generate negative pressure at the cutter head to adsorb the cutter head to the tissue, which is beneficial to subsequent tissue cutting. Since the aspiration pump is not directly started, it effectively avoids adverse situations such as insufficient pressure in the target cavity increasing the surgical risk. And when the aspiration pump is in the working state, while generating negative pressure at the cutter head to adsorb the tissue, it also takes away part of the liquid, resulting in a decrease in the liquid in the target cavity. Therefore, after the aspiration pump works, return to step S200 to achieve dynamic cyclic adjustment, which greatly improves the safety during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0033] Figure 1 Schematic diagram of the endoscopic power system of this embodiment;

[0034] Figure 2 Schematic diagram of the endoscopic power system control method of this embodiment;

[0035] Figure 3 Flow chart of the endoscopic power system control method of this embodiment.

[0036] Reference numerals:

[0037] 100 - Main body; 200 - Handle; 300 - Blade head; 400 - Liquid collection bottle; 500 - First pipeline; 600 - Second pipeline; 700 - Perfusion pump. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0040] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. This is only for the convenience of describing the present invention 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 thus should not be construed as a limitation of the present invention.

[0042] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0043] It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0044] In the prior art, during a uterine fibroids operation, when tissue cutting is required, the suction pump is directly started. The suction pump extracts air and creates a negative pressure at the cutter head 300, causing the cutter head 300 to adsorb tissue, thus facilitating the tissue cutting operation. Since after the suction pump is started and during the process of generating a negative pressure at the cutter head 300, the cutter head 300 does not immediately adsorb tissue and become blocked by the tissue. Instead, it is a continuous process. Only when the magnitude of the negative pressure meets the set requirements, the cutter head 300 makes good contact with the tissue and is blocked by the tissue. During this continuous process of adsorbing tissue, since the suction pump is always in the starting state, the liquid in the cavity is continuously adsorbed and discharged from the cutter head 300. As a result, there is a situation where the loss of liquid in the cavity is greater than the liquid replenishment, which may cause uterine cavity collapse, problems with the field of view, and affect the safety of the patient.

[0045] In view of this, the designer provides an endoscopic power system control method, which can achieve dynamic balance regulation during the operation, is beneficial to the stability of the intrauterine pressure, is also beneficial to tissue cutting, and the operation is safe and reliable.

[0046] Please combine Figure 1 It should be noted that the endoscopic power system control method provided in this embodiment is applied to an endoscopic power system. The endoscopic power system includes a main unit 100 integrated with a circuit control board, a handle 200 connected to the main unit 100, a cutter head 300 connected to the front end of the handle 200, a perfusion pump 700 communicatively connected to the main unit 100, a suction pump (not shown in the figure) communicatively connected to the main unit 100, a foot switch (not shown in the figure) communicatively connected to both the main unit 100 and the suction pump, a pressure relief valve (not shown in the figure), and a liquid collection bottle 400. Among them, the suction pump is located inside the main unit 100. The pump outlet of the suction pump is connected to the liquid collection bottle 400 through a first pipeline 500. The liquid collection bottle 400 is connected to the handle 200 through a second pipeline 600. The pump outlet of the suction pump is also connected to a pressure relief valve, and the pressure relief valve is located inside the main unit 100. At the same time, the pressure relief valve is communicatively connected to the main unit 100, and the pressure relief valve is in an open state all the time, that is, when the suction pump is not started, the pressure relief valve is always in a state of being connected to the outside. Before starting the suction pump, the pressure relief valve is first closed. The main unit 100 can automatically adjust the working states of the perfusion pump 700, the suction pump, and the pressure relief valve.

[0047] During the operation, the perfusion pump 700 can deliver liquid to the target cavity, and the liquid can be physiological saline, etc. The suction pump can generate a negative pressure at the front end of the cutter head 300 and inside the liquid collection bottle 400, so that the tissue cut at the cutter head 300 and the liquid in the target cavity enter the liquid collection bottle 400 together. The perfusion pump 700 can be controlled by keys or a touch screen provided on the main unit 100. The suction pump can be automatically regulated by the main unit 100 sending control instructions. And the precondition for starting the suction pump is that the foot switch needs to be activated first.

[0048] In this embodiment, the endoscopic power system control method includes the following steps:

[0049] Step S100: Obtain the working state of the foot switch. Under the condition that the foot switch is in the activated state, proceed to step S200;

[0050] Step S200: Obtain the real-time pressure in the target cavity, compare the real-time pressure with the preset pressure. Under the condition that the real-time pressure is not less than a% of the preset pressure, proceed to step S300;

[0051] Step S300: Obtain the working state of the perfusion pump 700. Under the condition that the perfusion pump 700 is delivering liquid into the target cavity, start the suction pump or do not stop the suction pump, and return to step S200.

[0052] As described above, the endoscopic power system control method provided in this embodiment has at least the following advantages:

[0053] After the power system is started, physiological saline and other liquids are input into the target cavity by the perfusion pump 700, so that the pressure in the target cavity increases and the target cavity expands. In order to ensure that the pressure in the target cavity is in a dynamic balance state during the operation, the perfusion pump 700 and the suction pump need to cooperate. That is to say, during the operation, the perfusion pump 700 inputs liquid into the target cavity. After the suction pump is started, while adsorbing the tissue cut from the target cavity into the cutter head 300, it also sucks part of the liquid into the cutter head 300 and discharges it from the target cavity, resulting in a decrease in the liquid in the target cavity. The liquid input by the perfusion pump 700 and the liquid discharged by the suction pump need to meet the set requirements to ensure the stability of the pressure in the target cavity and provide a safe surgical environment.

[0054] Therefore, when adjusting the working state of the suction pump, first obtain the state of the foot switch communicatively connected to the suction pump. When the foot switch is in the activated state, the suction pump is in a state where it can be started but is not directly started. Instead, it first determines whether the pressure in the target cavity meets the requirements and whether the perfusion pump 700 is in the working state. In this way, only when the pressure in the target cavity is not less than a% of the preset pressure and the perfusion pump 700 is in the on state, the suction pump is started or maintained in the working state, and the suction pump generates negative pressure at the tool head 300 to adsorb the tool head 300 to the tissue, facilitating subsequent tissue cutting. Since the suction pump is not directly started after the power system is just turned on, it effectively avoids adverse situations such as insufficient pressure in the target cavity increasing the surgical risk. And, when the suction pump is turned on, while generating negative pressure to adsorb tissue at the tool head 300, it also takes away some liquid, resulting in a reduction in the liquid in the target cavity. Therefore, after the suction pump is started, return to step S200 to achieve dynamic cyclic adjustment, greatly improving the safety during the surgical procedure.

[0055] Meanwhile, during the cyclic operation of the power system, there are situations where the suction pump is in the working state. At this time, steps S200 - S300 are also dynamically cycled, so that the suction pump can continuously operate under set conditions and is not likely to affect the surgical procedure. Specifically, when first turned on, the suction pump is in the off state. When the conditions for starting the suction pump are met, the suction pump is started. Then, return to step 200. At this time, the suction pump is already in the working state; during subsequent cyclic judgment processes, when the suction pump still meets the starting conditions, do not turn off the suction pump at this time and let it continue to operate.

[0056] Similarly, during the dynamic cyclic judgment process, if the starting conditions for the suction pump are not met, at this time, there are two operations: not starting the suction pump or stopping the suction pump. Specifically, when first turned on, the suction pump is in the off state. When the conditions for starting the suction pump are not met during the operation of the power system, just do not start the suction pump; then, during the cyclic operation of the power system, when the suction pump is already in the working state, if the suction pump does not meet the starting conditions at this time, just stop the suction pump.

[0057] The details of the endoscopic power system control method of this application embodiment are described below by way of examples.

[0058] It should be understood that this endoscopic power system control method can be applied to a simulation model. The simulation model can be designed with reference to the uterine cavity and has a target cavity.

[0059] Please combine Figure 2 and Figure 3 In this embodiment, optionally, the endoscopic power system control method includes the following steps:

[0060] Step S100: Obtain the working state of the foot switch, that is, determine whether the foot switch is activated. Here, the operation to activate the foot switch can be stepping on the foot switch. At this time, the suction pump is in a state where it can be controlled by the host 100 to start, and then proceed to step S200. Correspondingly, when the foot switch is released or not stepped on, the foot switch is in an unactivated state, and the suction pump is in a state where it cannot be controlled by the host 100 to start. Moreover, even when the foot switch is in the activated state, if the host 100 does not issue a start command, the suction pump will not start. It should be understood that before activating the foot switch, the host 100 is in the on state.

[0061] Step S200: Obtain the real-time pressure in the target cavity, compare the real-time pressure with the preset pressure. When the real-time pressure is not less than a% of the preset pressure, proceed to step S300. Here, the value of a is at least 60, that is, when the real-time pressure is not less than 60% of the preset pressure, proceed to step S300. In step 200, the real-time pressure in the target cavity can be obtained by using a pressure sensor built into the target cavity or externally connected. It should be understood that when the real-time pressure is less than a% of the preset pressure, the suction pump is not started or stopped, and return to step S200.

[0062] It should be understood that when the device is powered on for the first time, the suction pump is in the off state. In step S200, when the real-time pressure is less than a% of the preset pressure, it indicates that the pressure in the target cavity does not meet the surgical requirements. At this time, the suction pump is not started, and the pressure in the target cavity will not be further reduced, which is beneficial to increasing the pressure in the target cavity through the perfusion pump 700 and improving the pressure increase efficiency. During the operation, the suction pump may be in the working state. At this time, if the real-time pressure is less than a% of the preset pressure, it indicates that the pressure in the target cavity is insufficient. At this time, just stop the suction pump. At this time, the perfusion pump 700 continues to operate, can continuously increase the pressure in the target cavity, and then returns to step S200 to perform a dynamic cycle.

[0063] Step S300: Obtain the working state of the perfusion pump 700. And when the perfusion pump 700 is in the condition of delivering liquid to the target cavity (that is, when the perfusion pump 700 is in the on state), start the suction pump or do not stop the suction pump, and enter step S400; in this step, if the perfusion pump 700 is in the off state, do not start the suction pump or stop the suction pump to avoid the rapid decrease of the pressure in the target cavity and affect the normal operation, and return to step S200 to re-judge the pressure in the target cavity.

[0064] Step S400: Obtain the real-time negative pressure value at the pump outlet of the suction pump, compare the real-time negative pressure value with the set negative pressure value. If the real-time negative pressure value is less than the set negative pressure value, and under the condition that the pressure relief valve is in the closed state, start the suction pump or do not stop the suction pump, and return to step S200. In this step, when the real-time negative pressure value is not less than the set negative pressure value, the suction pump is not started or is turned off. At this time, the pressure relief valve is also in the closed state. That is to say, during the operation, after the suction pump is started, negative pressure will be generated in the pipeline. When the real-time negative pressure value is not less than the set negative pressure value, even if the suction pump is stopped, due to the negative pressure inertia, the negative pressure value at the tool head can meet the operation requirements during the operation. A certain negative pressure can be generated at the tool head to attract substances such as tissues and liquids, and the subsequent surgical operations can be carried out smoothly, thereby saving energy, reducing the noise generated by the operation of the suction pump during the surgical process, improving the surgical environment, and facilitating the surgeon to perform the operation. At the same time, after the suction pump is stopped, return to step S200 to continue the dynamic judgment. If the real-time negative pressure value is still not less than the set negative pressure value, at this time, it is only necessary not to start the suction pump.

[0065] Based on step S400, when comparing the real-time negative pressure value with the set negative pressure value, the purpose is to judge whether the negative pressure at the tool head 300 meets the requirements. If the real-time negative pressure value is less than the set negative pressure value, it indicates that the suction force at the position where the tool head 300 is located is insufficient, and it is impossible to adsorb well with the tissue. The tissue is not adsorbed and positioned by the tool head 300, which is not conducive to the subsequent operations on the tissue during the operation. Therefore, when the real-time negative pressure value is less than the set negative pressure value, start the suction pump or do not stop the suction pump. Since the pressure relief valve is in the closed state, under the action of the suction pump, the negative pressure at the tool head 300 can be continuously increased, so that the tool head 300 can adsorb the tissue under the action of the negative pressure. As the tissue is gradually adsorbed on the tool head 300, the tool head 300 is blocked, causing the negative pressure value at the pump outlet to continue to increase, and the adsorption force is sufficient to perform subsequent operations on the tissue. Moreover, during the operation, when the real-time negative pressure value continuously increases to not less than the set negative pressure value, it indicates that the negative pressure is sufficient. At this time, the suction pump can be turned off, which can save energy and reduce the noise generated when the suction pump operates.

[0066] It should be noted that when the real-time negative pressure value is less than the set negative pressure value, it includes two operations: starting the suction pump or not stopping the suction pump. The reason is that when the machine is first turned on, the suction pump is in the off state. Under the condition that the real-time negative pressure value is less than the set negative pressure value, it indicates that the negative pressure is insufficient. In order to increase the negative pressure, the suction pump needs to be started; during the cyclic operation of the power system, the suction pump may be in the working state. At this time, if the real-time negative pressure value is less than the set negative pressure value, it is only necessary not to stop the suction pump, and the suction pump can continue to operate, thereby increasing the negative pressure.

[0067] It should be noted that during the process of increasing the negative pressure at the tool head 300 by starting the suction pump, the flow rate of the suction pump is automatically adjusted according to the magnitude of the real-time negative pressure value, and the magnitude of the flow rate of the suction pump is inversely proportional to the magnitude of the real-time negative pressure value. For example:

[0068] When the real-time negative pressure value is (0 - 20%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 80% - 100% of its maximum working flow rate;

[0069] When the real-time negative pressure value is (20% - 60%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 60% - 80% of its maximum working flow rate;

[0070] When the real-time negative pressure value is (60% - 80%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 40% - 60% of its maximum working flow rate;

[0071] When the real-time negative pressure value is (80% - 100%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 0 - 40% of its maximum working flow rate.

[0072] That is to say, when the negative pressure value at the pump outlet of the suction pump is small, it indicates that the adsorption force is insufficient. At this time, in order to quickly meet the requirements of the adsorption force, by increasing the flow rate of the suction pump, the time for increasing the negative pressure value can be effectively shortened, thereby improving the surgical efficiency. As the negative pressure value continues to increase, it indicates that the contact area between the tool head 300 and the tissue increases, that is, the blocked area of the tool head 300 increases. At this time, adaptively reducing the flow rate of the suction pump can not only meet the continuous increase of the negative pressure value, but also avoid the too fast reduction rate of the liquid in the target cavity. At the same time, by reducing the power of the suction pump to reduce the flow rate, energy can be saved, noise can be reduced, and the surgical environment is better.

[0073] It should be noted that in step S100, step S200, and step S300, when the pressure relief valve connected to the pump outlet of the suction pump is in the open state, the suction pump is not started or stopped. In this way, the negative pressure in the liquid collection bottle 400 can be relieved, avoiding the excessive adsorption of the liquid in the target cavity under the negative pressure inertia, avoiding large pressure fluctuations in the target cavity, and improving the safety of the surgical process.

[0074] It should be noted that since a pressure relief valve is provided at the pump outlet of the suction pump, the pressure relief valve is normally open and is in a state of being connected to the external environment. In step S400, under the condition that the pressure relief valve is in the closed state, when the suction pump is turned on or the suction pump is not stopped, the suction pump can quickly generate negative pressure at the front ends of the liquid collection bottle 400 and the cutter head 300, shortening the negative pressure adjustment time and facilitating the suction of the tissue and liquid in the target cavity into the liquid collection bottle 400 by using the negative pressure. When the suction pump is in the closed state or not started, at this time the pressure relief valve is also in the closed state. When the negative pressure at the cutter head, that is, when the suction pump is not needed, the pressure relief valve switches from the closed state to the open state, and the negative pressure in the liquid collection bottle 400 can be relieved, avoiding excessive adsorption of the liquid in the target cavity under the negative pressure inertia, avoiding large pressure fluctuations in the target cavity, and improving the safety of the surgical process.

[0075] It should be noted that before the operation, the main unit 100 and its connected accessory components can be checked first, and then the main unit 100 is started to make the main unit 100 in the powered-on state. The main unit 100 can monitor and adjust each accessory component. The main unit 100 and each accessory component can be communicatively connected by means of a data cable or a Bluetooth module, etc.

[0076] The endoscopic power system control method provided in this embodiment, by monitoring the pressure of the target cavity and the negative pressure value of the suction pump in real time during the operation, guides the working states of the perfusion pump 700 and the suction pump, realizes the dynamic cycle regulation during the operation, can prevent the vision from deteriorating due to the imbalance between suction and perfusion in the target cavity during the operation, and improves the safety of the patient; it can also ensure the automatic regulation of suction continuously under the condition of ensuring the effect of uterine distension, improving the surgical efficiency. The conditions for starting the suction pump or not stopping the suction pump need to simultaneously meet that the foot switch is in the activated state, the pressure of the target cavity is not less than a% of the set pressure, the perfusion pump 700 is in the on state, and the negative pressure value is less than the negative pressure setting value. In this way, it is not easy to have the situation that after the suction pump is started or the suction pump continues to operate, the liquid loss speed in the target cavity is too fast, the pressure reduction speed in the target cavity increases, and the pressure fluctuates greatly, resulting in a poor vision.

[0077] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A control method for an endoscopic power system, characterized in that The endoscopic power system control method includes the following steps: Step S100: Obtain the working state of the foot switch. Under the condition that the foot switch is in the activated state, proceed to step S200; Step S200: Obtain the real-time pressure in the target cavity, compare the real-time pressure with the preset pressure. Under the condition that the real-time pressure is not less than a% of the preset pressure, proceed to step S300; Step S300: Obtain the working state of the perfusion pump. Under the condition that the perfusion pump is delivering liquid to the target cavity, start the suction pump or do not stop the suction pump, and return to step S200.

2. The endoscopic power system control method according to claim 1, wherein: In step S200, the value of a% is not less than 60%.

3. The endoscopic power system control method according to claim 1, wherein: In step S200, under the condition that the real-time pressure is less than a% of the preset pressure, do not start the suction pump or stop the suction pump, and return to step S200; Or / and, in step S300, under the condition that the perfusion pump is in the closed state, do not start the suction pump or stop the suction pump, and return to step S200.

4. The endoscopic power system control method according to any one of claims 1-3, wherein: In step S100, step S200, and step S300, under the condition that the pressure relief valve at the pump outlet of the suction pump is in the open state, do not start the suction pump or stop the suction pump.

5. The endoscopic power system control method according to any one of claims 1-3, wherein: In step S300, under the condition that the perfusion pump is delivering liquid to the target cavity, it further includes step S400: Obtain the real-time negative pressure value of the suction pump. When the real-time negative pressure value is not less than the set negative pressure value, do not start the suction pump or stop the suction pump, and return to step S200.

6. The endoscopic power system control method according to claim 5, wherein: In step S400, when the real-time negative pressure value is less than the set negative pressure value, start the suction pump or do not stop the suction pump.

7. The endoscopic power system control method according to claim 6, wherein: In step S400, when the real-time negative pressure value is less than the set negative pressure value, under the condition that the pressure relief valve connected to the pump outlet of the suction pump is in the closed state, then start the suction pump or do not stop the suction pump.

8. The endoscopic power system control method according to claim 7, wherein: In step S300, under the condition of starting the suction pump, automatically adjust the flow rate of the suction pump according to the magnitude of the real-time negative pressure value, and the flow rate of the suction pump is inversely proportional to the magnitude of the real-time negative pressure value.

9. The endoscopic power system control method according to claim 8, wherein: In step S300: When the real-time negative pressure value is (0 - 20%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 80% - 100% of its maximum working flow rate; When the real-time negative pressure value is (20% - 60%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 60% - 80% of its maximum working flow rate; When the real-time negative pressure value is (60% - 80%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 40% - 60% of its maximum working flow rate; When the real-time negative pressure value is (80% - 100%) of the set negative pressure value, the flow rate of the suction pump is adjusted to 0 - 40% of its maximum working flow rate.

10. An endoscopic power system, characterized in that, Applied to the endoscopic power system control method according to any one of claims 1 - 9, comprising: A main unit, a handle, a cutter head, a perfusion pump, a suction pump, a foot switch and a liquid collection bottle; the cutter head is connected to the main unit through the handle; the perfusion pump and the suction pump are both installed on the main unit, the suction pump is connected to the liquid collection bottle, and the liquid collection bottle is connected to the handle; the perfusion pump, the suction pump and the foot switch are all communicatively connected to the main unit.

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