WO2025200934A1 - Vacuum pump control method and module for biopsy system, and vacuum pump control circuit - Google Patents

Abstract

The present application relates to a vacuum pump control method and module for a biopsy system, and a vacuum pump control circuit. The method comprises: when a vacuum pump is started with a load being carried, controlling to be in a capacitance-boosted state a capacitive circuit which is connected in parallel to the vacuum pump (S101); and when the vacuum pump operates smoothly, controlling to be switched to a non-capacitance-boosted state the capacitive circuit which is connected in parallel to the vacuum pump (S102).

Description

Vacuum pump control method, module and vacuum pump control circuit for biopsy system

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Chinese patent application filed with the China Patent Office on March 27, 2024, with application number 202410360094.7 and titled “Vacuum Pump Control Method, Module and Computer-Readable Storage Medium for Biopsy System,” the entire contents of which are incorporated by reference into this application.

This application also claims priority to the Chinese patent application filed with the China Patent Office on March 27, 2024, with application number 202420631716.0 and entitled “Vacuum Pump Control Circuit and Biopsy System for Biopsy System,” the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of medical devices, and in particular to a vacuum pump control method, module, and vacuum pump control circuit for a biopsy system.

Background Art

A vacuum-assisted biopsy system is a medical device used for minimally invasive treatment or biopsy of tumors. It primarily consists of a main unit, a biopsy surgical device, and a vacuum negative pressure system. Under the guidance of an imaging device (such as B-ultrasound), the system inserts the biopsy needle of the biopsy surgical device into the surgical site. The system then electrically controls the biopsy needle to mechanically move the needle to partially or completely excise the lesion tissue. The excised tissue specimen is then transported to a collection location through negative pressure for subsequent sample analysis and testing.

Since AC vacuum pumps have the advantages of high negative pressure and high flow, at present, the vacuum negative pressure system of vacuum-assisted biopsy systems often uses AC vacuum pumps as the negative pressure source. However, traditional technology or some biopsy systems in a certain technology have the disadvantage of poor load starting capability. Of course, it can also provide the biopsy system with strong load starting capability, but there is a problem of high temperature rise rate after long-term operation.

The above content is only used to assist in understanding the technical solution of this application, and does not mean that the above content is admitted to be traditional technology or a technology.

Summary of the Invention

According to various embodiments of the present application, a method for controlling a vacuum pump of a biopsy system of the present application is provided, wherein the vacuum pump is connected in parallel with a capacitor circuit, and the control method includes:

When the vacuum pump is started with load, controlling the capacitor circuit connected in parallel with the vacuum pump to be in a capacitance increasing state;

When the vacuum pump is running smoothly, the capacitor circuit connected in parallel with the vacuum pump is controlled to switch to a non-capacitance-increasing state.

In one embodiment, the control method further includes:

Obtaining the real-time current of the vacuum pump;

Whether the vacuum pump operates smoothly is determined according to the real-time current.

In one embodiment, determining whether the vacuum pump operates smoothly based on the real-time current includes:

determining a current threshold based on a starting current of the vacuum pump;

Whether the vacuum pump operates smoothly is determined based on whether the real-time current is less than the current threshold, wherein when the real-time current is less than the current threshold, it is determined that the vacuum pump operates smoothly.

In one embodiment, the capacitor circuit includes:

a first capacitor connected in parallel with the vacuum pump;

a second capacitor connected in parallel with the vacuum pump;

a first state switching element, the first state switching element being connected in series with the second capacitor, the first state switching element being configured to disconnect or connect the second capacitor from the vacuum pump through state switching;

Wherein, when the second capacitor is connected to the vacuum pump, the capacitor circuit is in a capacitance increasing state;

When the second capacitor is disconnected from the vacuum pump, the capacitor circuit is in a non-capacitance-increasing state.

In one embodiment, the vacuum pump control circuit further includes a controller, and the controller is connected to the first state switching element.

In one embodiment, the vacuum pump control circuit further includes a vacuum pump current acquisition circuit, and the controller is connected to the vacuum pump current acquisition circuit.

In one embodiment, the vacuum pump control circuit further includes a second state switching element, the vacuum pump is connected to a power supply, the second state switching element is connected in series with the power supply and the vacuum pump, the second state switching element is used to control the power supply state of the vacuum pump through state switching, and the second state switching element is connected to the controller.

In one embodiment, the state of the first state switching element includes a closed state and an open state.

When the first state switching element is in a closed state, the second capacitor is connected in parallel with the first capacitor and the vacuum pump;

When the first state switching element is in the off state, the second capacitor is disconnected from the vacuum pump and the first capacitor at the same time.

In one embodiment, the first state switching element is a high-voltage power relay.

In one embodiment, the vacuum pump is further connected to a second state switching element for switching the power supply state of the vacuum pump, and the vacuum pump control method further includes:

The vacuum pump stops running by controlling the second state switching element to switch to the off state.

In one embodiment, the vacuum pump is an AC vacuum pump.

The present application also provides a vacuum pump control module for a biopsy system. The control module is applied to a vacuum pump control circuit in the biopsy system. The vacuum pump control circuit includes a capacitor circuit connected in parallel with the vacuum pump. The control module is configured as follows:

When the vacuum pump is started with load, controlling the capacitor circuit connected in parallel with the vacuum pump to be in a capacitance increasing state;

When the vacuum pump is running smoothly, the capacitor circuit connected in parallel with the vacuum pump is controlled to switch to a non-capacitance-increasing state.

An embodiment of the present application further provides a vacuum pump control circuit for a biopsy system, comprising a capacitor circuit connected in parallel with the vacuum pump. The vacuum pump control circuit is used to implement the steps of the aforementioned vacuum pump control method for the biopsy system.

In one embodiment, the capacitor circuit includes:

a first capacitor connected in parallel with the vacuum pump;

a second capacitor connected in parallel with the vacuum pump;

a first state switching element, the first state switching element being connected in series with the second capacitor, the first state switching element being configured to disconnect or connect the second capacitor from the vacuum pump through state switching;

Wherein, when the second capacitor is connected to the vacuum pump, the capacitor circuit is in a capacitance increasing state;

When the second capacitor is disconnected from the vacuum pump, the capacitor circuit is in a non-capacitance-increasing state.

In one embodiment, the vacuum pump control circuit further includes a controller, and the controller is connected to the first state switching element.

In one embodiment, the vacuum pump control circuit further includes a vacuum pump current acquisition circuit, and the controller is connected to the vacuum pump current acquisition circuit.

In one embodiment, the vacuum pump control circuit further includes a second state switching element, the vacuum pump is connected to a power supply, the second state switching element is connected in series with the power supply and the vacuum pump, the second state switching element is used to control the power supply state of the vacuum pump through state switching, and the second state switching element is connected to the controller.

In one embodiment, the state of the first state switching element includes a closed state and an open state.

When the first state switching element is in a closed state, the second capacitor is connected in parallel with the first capacitor and the vacuum pump;

When the first state switching element is in the off state, the second capacitor is disconnected from the vacuum pump and the first capacitor at the same time.

In one embodiment, the first state switching element is a high-voltage power relay.

In addition, to achieve the above-mentioned purpose, the present application also provides a biopsy system, which includes a vacuum pump and the aforementioned vacuum pump control circuit.

The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to better describe and illustrate the embodiments and/or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the drawings should not be considered to limit the scope of the disclosed inventions, the presently described embodiments and/or examples, or any of the best modes of these inventions currently understood.

FIG1 is a flow chart of an embodiment of a vacuum pump control method for a biopsy system of the present application;

FIG2 is a schematic structural diagram of an embodiment of a vacuum pump control circuit of a biopsy system of the present application;

FIG3 is a schematic structural diagram of another embodiment of a vacuum pump control circuit of a biopsy system of the present application;

FIG4 is a schematic structural diagram of another embodiment of a vacuum pump control circuit of the biopsy system of the present application;

FIG5 is a flow chart of another embodiment of a vacuum pump control method for a biopsy system according to the present invention;

FIG6 is a flow chart of another embodiment of a vacuum pump control method for a biopsy system according to the present application;

FIG7 is a flow chart of the step of determining whether the vacuum pump is running smoothly based on the real-time current in the vacuum pump control method of the biopsy system of the present application.

Description of Figure Numbers:

The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this needs to be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

Biopsy, short for pathological examination of living tissue, refers to the procedure of obtaining diseased tissue from a patient for examination and confirmation of diagnosis through surgical procedures such as local excision, forceps extraction, needle aspiration, scraping, and removal. During the biopsy, a small incision is made in the skin at the puncture site under local anesthesia. A thick pillow or a cored needle is inserted to aspirate a small piece of tissue for pathological examination. Alternatively, a drill can be used to extract the sample. Currently, vacuum-assisted biopsy systems often use an AC vacuum pump as the negative pressure source. To ensure surgical safety, the AC vacuum pump's starting power is the same as that used during the procedure. This results in a lower starting power, resulting in poor under-load starting capability. While this can provide the biopsy system with strong under-load starting capability, it can also suffer from a high temperature rise rate after prolonged operation, which can even require shutdown and cooling in severe cases.

Based on the problems existing in the above technical solutions, the present application provides a vacuum pump control method for a biopsy system, including when the vacuum pump is started with a load, the controller controls the capacitor circuit connected in parallel with the vacuum pump to be in a capacity-increasing state; when the vacuum pump is running smoothly, the controller controls the capacitor circuit connected in parallel with the vacuum pump to switch to a non-capacitance-increasing state. When the biopsy system is started, the controller increases the capacity of the vacuum pump by controlling the capacitor circuit to be in a capacity-increasing state, thereby increasing the starting power when the vacuum pump is started, and improving the load-starting capability of the vacuum pump. At the same time, after the vacuum pump runs smoothly, the controller sets the capacitor circuit to a non-capacitance-increasing state to reduce the capacitance of the capacitor circuit connected in parallel with the vacuum pump, thereby reducing the operating heat of the vacuum pump without affecting the load-carrying capacity of the vacuum pump, reducing the temperature rise rate when the vacuum pump is running, and enabling the vacuum pump to continue to operate for a long time without stopping to cool down, further improving the efficiency of the operation.

The present application proposes a vacuum pump control method for a biopsy system. Referring to FIG1 , FIG1 is a flow chart of an embodiment of the vacuum pump control method for a biopsy system of the present application.

The vacuum pump control method of the biopsy system includes:

Step S101, when the vacuum pump is started with load, controlling the capacitor circuit connected in parallel with the vacuum pump to be in a capacitance increasing state;

Step S102 : When the vacuum pump is running smoothly, the capacitor circuit connected in parallel with the vacuum pump is controlled to switch to a non-capacitance-increasing state.

In an embodiment of the present application, the vacuum pump control circuit of the biopsy system includes a capacitor circuit, and the states of the capacitor circuit include a capacitance-increasing state and a non-capacitance-increasing state.

When the vacuum pump is started with load, the controller controls the capacitor circuit connected in parallel with the vacuum pump to be in a capacity-increasing state. Specifically, the capacitor circuit is provided with multiple capacitors connected in parallel with the vacuum pump. When the vacuum pump is started with load, at least two capacitors in the capacitor circuit are controlled to be connected in parallel with the vacuum pump so that the capacitor circuit is in a capacity-increasing state. By increasing the parallel capacitance of the vacuum pump, the starting power of the vacuum pump is increased when the vacuum pump is started, thereby improving the load-starting capability of the vacuum pump.

When the vacuum pump is running smoothly, the controller controls the capacitor circuit in parallel with the vacuum pump to switch to a non-capacitance-increasing state. Specifically, after the vacuum pump is running smoothly, part of the capacitors in parallel with the vacuum pump are disconnected, and the capacitors during normal operation of the vacuum pump are retained to reduce the capacitance of the capacitor circuit in parallel with the vacuum pump, thereby reducing the operating heat of the vacuum pump without affecting the load capacity of the vacuum pump, reducing the temperature rise rate during the operation of the vacuum pump, and allowing the vacuum pump to continue to operate for a long time without stopping to cool down, thereby further improving surgical efficiency.

FIG1 is a flow chart of a method according to an embodiment of the present invention. It should be understood that although the steps in the flow chart of FIG1 are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

2 to 4 , FIG2 is a schematic structural diagram of an embodiment of a vacuum pump control circuit of a biopsy system of the present application; FIG3 is a schematic structural diagram of another embodiment of a vacuum pump control circuit of a biopsy system of the present application; and FIG4 is a schematic structural diagram of yet another embodiment of a vacuum pump control circuit of a biopsy system of the present application.

As shown in Figure 2, the capacitor circuit 100 is connected in parallel with the vacuum pump 200. The capacitor circuit 100 includes a first capacitor 110, a second capacitor 120, and a first state switching element 130. The vacuum pump 200 is an AC vacuum pump.

As shown in Figures 2, 3, and 4, the first capacitor 110 is connected in parallel with the vacuum pump 200, and the second capacitor 120 is connected in parallel with the vacuum pump 200. The first capacitor 110 is the starting capacitor of the vacuum pump 200 in the existing biopsy system, and the second capacitor 120 is the newly added capacitor of the present application. The second capacitor 120, the first capacitor 110, and the vacuum pump 200 are electrically connected in parallel to form a parallel circuit. Specifically, in a conventional biopsy system, the first capacitor 110 is connected in parallel with the vacuum pump 200, and the second capacitor 120 is connected in parallel at both ends of the circuit between the first capacitor 110 and the vacuum pump 200 to form the parallel circuit of the present application, in which the second capacitor 120, the first capacitor 110, and the vacuum pump 200 are connected in parallel.

As shown in FIG. 2 , FIG. 3 and FIG. 4 , the first state switching element 130 is connected in series with the second capacitor 120 . The first state switching element 130 is used to disconnect or connect the connection between the second capacitor 120 and the vacuum pump 200 through state switching.

The first state switching element 130 can be a high-voltage power relay. As shown in FIG2 , the first state switching element 130 and the second capacitor 120 are connected in series to form a series circuit, which is connected in parallel with the vacuum pump 200. Furthermore, the series circuit formed by adding the first state switching element 130 and the second capacitor 120 in series to a conventional biopsy system is disconnected when the first state switching element 130 is in the open state, disconnecting the parallel connection between the second capacitor 120 and the vacuum pump 200. When the first state switching element 130 is in the closed state, the second capacitor 120 and the vacuum pump 200 are connected in parallel.

When the second capacitor 120 is connected to the vacuum pump 200 , the capacitor circuit 100 is in a capacitance-increasing state; when the second capacitor 120 is disconnected from the vacuum pump 200 , the capacitor circuit 100 is in a non-capacitance-increasing state.

In one embodiment, as shown in Figure 3, the vacuum pump control circuit further includes a controller 300, which is connected to the first state switching element 130. The controller 300 may be an MCU of the biopsy system, and the controller 300 may control the first state switching element 130 to switch states.

In one embodiment, in a possible implementation, as shown in Figures 2, 3, and 4, the state of the first state switching element 130 includes a closed state and an open state. When the first state switching element 130 is in the closed state, the second capacitor 120 is simultaneously connected in parallel with the first capacitor 110 and the vacuum pump 200; when the first state switching element 130 is in the open state, the second capacitor 120 is simultaneously disconnected from the vacuum pump 200 and the first capacitor 110.

In this embodiment, when the vacuum pump 200 is started with a load, the controller 300 controls the capacitor circuit 100 connected in parallel with the vacuum pump 200 to be in a capacity expansion state; specifically, after the biopsy system is connected to an AC 220V power supply and turned on, the controller 300 controls the first state switching element 130 to be closed. The controller 300 can send a control instruction to the first state switching element 130, and the first state switching element 130 performs a closing operation according to the control instruction, so that the first state switching element 130 is closed and is in a closed state, so that the second capacitor 120 is connected in parallel with the first capacitor 110 and the vacuum pump 200 at the same time, and the two ends of the second capacitor 120 are respectively electrically connected to the two poles of the power supply. Then, the vacuum pump 200 is connected to the power supply and starts running. At this time, the first capacitor 110 and the second capacitor 120 connected in parallel with the vacuum pump 200 both serve as the starting capacitors of the vacuum pump 200, that is, the starting capacitor of the vacuum pump 200 = the first capacitor 110 + the second capacitor 120, and the capacitor circuit 100 is in a capacity-increasing state, wherein the first capacitor 110 can provide sufficient electrical energy for the normal operation of the vacuum pump 200, and the second capacitor 120 provides sufficient electrical energy for the load starting of the vacuum pump 200, that is, the first capacitor 110 and the second capacitor 120 both provide sufficient electrical energy for the load starting of the vacuum pump 200, thereby improving the load starting capability of the vacuum pump 120.

In this embodiment, when the vacuum pump 200 is running smoothly, the controller 300 controls the capacitor circuit 100 connected in parallel with the vacuum pump 200 to switch to a non-capacitance-increasing state. Specifically, after the vacuum pump 200 starts running, the controller 300 can detect in real time whether the vacuum pump 200 is running smoothly. The controller 300 can detect or judge the smooth running state through the operating parameters of the vacuum pump 200. When the vacuum pump 200 is running smoothly, the controller 300 controls the first state switching element 130 to disconnect. For example, the controller 300 can send a disconnection instruction to the first state switching element 130, and the first state switching element 130 performs a disconnection operation according to the received disconnection instruction, thereby The first state switching element 130 is disconnected and is in an off state. At this time, the second capacitor 120 is disconnected from the vacuum pump 200 and the first capacitor 110 at the same time. The access capacitor of the vacuum pump 200 is the first capacitor 110, so that the first capacitor 110 serves as the capacitor when the vacuum pump 200 is running. The capacitor circuit 100 is in a non-capacitance-increasing state. The first capacitor 110 can provide sufficient electrical energy for the normal operation of the vacuum pump 200, thereby reducing the operating heat of the vacuum pump 200 without affecting the load capacity of the vacuum pump 200, reducing the temperature rise rate of the vacuum pump 200 during operation, and allowing the vacuum pump 200 to continue to operate for a long time without stopping to cool down, thereby further improving surgical efficiency.

It should be emphasized that the first capacitor 110 may be a single capacitor or a capacitor combination formed by a combination of multiple sub-capacitors, and the second capacitor 120 may also be a single capacitor or a capacitor combination formed by a combination of multiple sub-capacitors.

In one embodiment, as shown in FIG4 , the vacuum pump control circuit further includes a second state switching element 400 . The vacuum pump 200 is connected to a power supply. The second state switching element 400 is connected in series with the power supply and the vacuum pump 200. The second state switching element 400 is configured to control the power supply state of the vacuum pump 200 by switching between states. The second state switching element 400 is connected to the controller 300 . The second state switching element 400 is a solid-state relay. The second state switching element 400 has two states: a closed state and an open state. When the second state switching element 400 is in the open state, the vacuum pump 200 stops operating.

In one embodiment, in a possible implementation, as shown in FIG3 , the vacuum pump 200 is further connected to a second state switching element 400 for switching the power supply state of the vacuum pump. As shown in FIG5 , the vacuum pump control method of the biopsy system further includes:

Step S201 : The vacuum pump stops running by controlling the second state switching element to switch to the off state.

In this embodiment, the second state switching element 400 is connected in series with the power supply and the vacuum pump 200. The second state switching element 400 is used to control the power supply state of the vacuum pump 200 by switching states. The second state switching element 400 is connected to the controller 300. The second state switching element 400 is a solid-state relay. The second state switching element 400 has two states: a closed state and an open state. When the second state switching element 400 is in the open state, the vacuum pump 200 stops operating.

In this embodiment, after the biopsy system is connected to an AC 220V power supply and turned on, the controller 300 controls the first state switching element 130 and the second state switching element 400 to close. Specifically, the controller 300 can send a control instruction to the first state switching element 130 and the second state switching element 400. The first state switching element 130 and the second state switching element 400 respectively perform a closing operation according to the control instruction, so that the first state switching element 130 and the second state switching element 400 are in a closed state, so that the second capacitor 120 is connected in parallel with the first capacitor 110 and the vacuum pump 200 at the same time. The two ends of the second capacitor 120 are electrically connected to the two poles of the power supply respectively, and the vacuum pump 200 is connected to the power supply and starts running. At this time, the first capacitor 110 and the second capacitor 120 connected in parallel with the vacuum pump 200 both serve as the starting capacitors of the vacuum pump 200, that is, the starting capacitor of the vacuum pump 200 = the first capacitor 110 + the second capacitor 120. The newly added second capacitor 120 provides sufficient electrical energy for the load starting of the vacuum pump 200, thereby improving the load starting capability of the vacuum pump 200; wherein, the first capacitor 110 can provide sufficient electrical energy for the normal operation of the vacuum pump 200, and the second capacitor 120 provides sufficient electrical energy for the load starting of the vacuum pump 200, that is, the first capacitor 110 and the second capacitor 120 simultaneously provide sufficient electrical energy for the load starting of the vacuum pump 200, thereby improving the load starting capability of the vacuum pump 120.

The controller 300 can control the second state switching element 400 to switch states. For example, at the end of the operation, the end of the operation instruction can be triggered by the biopsy system. When the end of the operation instruction is detected, the controller 300 can send a disconnection instruction to the second state switching element 400. The second state switching element 400 performs a disconnection operation according to the disconnection instruction. The second state switching element 400 switches to the disconnected state, and the vacuum pump 200 stops running.

In one embodiment, the vacuum pump control circuit further includes a vacuum pump current acquisition circuit, and the controller 300 is connected to the vacuum pump current acquisition circuit.

It should be noted that the controller 300 is also connected to a vacuum pump current acquisition circuit to collect the operating current of the vacuum pump 300. The controller 300 can determine whether the vacuum pump 300 is operating smoothly based on the collected operating current. The vacuum pump current acquisition circuit may include a current transformer connected to the vacuum pump 300. The vacuum pump current acquisition circuit can adopt an existing current acquisition circuit as long as it can achieve current acquisition, and will not be described in detail here.

In one embodiment, in one implementation, as shown in FIG6 , the vacuum pump control method of the biopsy system further includes:

Step S301, obtaining the real-time current of the vacuum pump;

Step S302: Determine whether the vacuum pump is running smoothly based on the real-time current.

In this embodiment, when the vacuum pump 200 is started with load, the controller 300 obtains the real-time current of the vacuum pump. Specifically, the real-time current of the vacuum pump 200 can be obtained through a current transformer, and the starting current of the vacuum pump 200 when started with load is recorded.

After obtaining the real-time current, it is determined whether the vacuum pump is running smoothly according to the real-time current. Specifically, as shown in FIG7 , step S302 includes:

Step a, determining a current threshold based on a starting current of the vacuum pump;

Step b: determining whether the vacuum pump is running smoothly based on whether the real-time current is less than a current threshold, wherein when the real-time current is less than the current threshold, it is determined that the vacuum pump is running smoothly.

In this embodiment, the controller 300 determines the current threshold through the starting current of the vacuum pump. Specifically, the controller 300 can determine the preset coefficient between the current threshold and the starting current through experimental data in advance. After obtaining the starting current, the current threshold is determined according to the starting current and the preset coefficient, that is, the current threshold = starting current * preset coefficient. For example, the preset coefficient can be 0.5~0.8.

Next, the controller 300 determines whether the real-time current is less than the current threshold. When the real-time current is less than the current threshold, it is determined that the vacuum pump is running smoothly, and then it can be accurately determined whether the vacuum pump is in a stable operating state, so that after the vacuum pump is running smoothly, the controller 300 sets the capacitor circuit to a non-capacitance increase state, thereby reducing the operating heat of the vacuum pump 200 without affecting the load capacity of the vacuum pump 200, reducing the temperature rise rate of the vacuum pump 200 during operation, and allowing the vacuum pump 200 to continue to run for a long time without stopping to cool down, thereby further improving surgical efficiency.

The vacuum pump control method of the biopsy system of the present application is as follows: when the vacuum pump is started with a load, the controller controls the capacitor circuit connected in parallel with the vacuum pump to be in a capacity-increasing state; when the vacuum pump is running smoothly, the controller controls the capacitor circuit connected in parallel with the vacuum pump to switch to a non-capacitance-increasing state. When the biopsy system is started, the controller controls the capacitor circuit to be in a capacity-increasing state to increase the capacity of the vacuum pump, thereby increasing the starting power of the vacuum pump when it is started, and improving the load-starting capability of the vacuum pump. At the same time, after the vacuum pump runs smoothly, the controller sets the capacitor circuit to a non-capacitance-increasing state to reduce the capacitance of the capacitor circuit connected in parallel with the vacuum pump, thereby reducing the operating heat of the vacuum pump without affecting the load-carrying capability of the vacuum pump, reducing the temperature rise rate when the vacuum pump is running, and enabling the vacuum pump to continue to operate for a long time without stopping to cool down, further improving surgical efficiency.

In addition, an embodiment of the present application further provides a vacuum pump control module for a biopsy system. The control module is applied to a vacuum pump control circuit in the biopsy system. The vacuum pump control circuit includes a capacitor circuit connected in parallel with the vacuum pump. The control module is configured as follows:

When the vacuum pump is started with load, the capacitor circuit connected in parallel with the vacuum pump is controlled to be in a capacity increasing state;

When the vacuum pump is running smoothly, the capacitor circuit connected in parallel with the vacuum pump is controlled to switch to a non-capacitance-increasing state.

The method executed by the vacuum pump control module of the above-mentioned biopsy system can refer to the various embodiments of the vacuum pump control method of the biopsy system of the present application, and will not be described in detail here.

An embodiment of the present application further provides a vacuum pump control circuit for a biopsy system, comprising a capacitor circuit connected in parallel with the vacuum pump. The vacuum pump control circuit is used to implement the steps of the aforementioned vacuum pump control method for the biopsy system.

Among them, since the vacuum pump control circuit adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

In addition, an embodiment of the present application further provides a biopsy system, which includes a vacuum pump and the aforementioned vacuum pump control circuit.

The vacuum pump control circuit is used to implement the steps of the vacuum pump control method of the biopsy system. Since the present biopsy system adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

As used in this application, the terms "component," "module," and "system" are intended to refer to a computer-related entity, which can be hardware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable code, a thread of execution, a program, and/or a computer. As an illustration, an application running on a server and a server can both be components. One or more components can reside in a process and/or a thread of execution, and a component can be located within a computer and/or distributed between two or more computers.

In addition, an embodiment of the present application also proposes a computer-readable storage medium, which stores a vacuum pump control program for a biopsy system. When the vacuum pump control program for the biopsy system is executed by a processor, the steps of the above-mentioned vacuum pump control method for the biopsy system are implemented.

It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the traditional technology or a technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, including a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims (20)

A method for controlling a vacuum pump of a biopsy system, wherein the vacuum pump is connected in parallel with a capacitor circuit, the control method comprising: When the vacuum pump is started with load, controlling the capacitor circuit connected in parallel with the vacuum pump to be in a capacitance increasing state; When the vacuum pump is running smoothly, the capacitor circuit connected in parallel with the vacuum pump is controlled to switch to a non-capacitance-increasing state. The vacuum pump control method for a biopsy system according to claim 1, further comprising: Obtaining the real-time current of the vacuum pump; Whether the vacuum pump operates smoothly is determined according to the real-time current. The vacuum pump control method for a biopsy system according to claim 2, wherein determining whether the vacuum pump is operating smoothly based on the real-time current comprises: determining a current threshold based on a starting current of the vacuum pump; Whether the vacuum pump operates smoothly is determined based on whether the real-time current is less than the current threshold, wherein when the real-time current is less than the current threshold, it is determined that the vacuum pump operates smoothly. The vacuum pump control method for a biopsy system according to claims 1-3, wherein the capacitive circuit comprises: a first capacitor connected in parallel with the vacuum pump; a second capacitor connected in parallel with the vacuum pump; a first state switching element, the first state switching element being connected in series with the second capacitor, the first state switching element being configured to disconnect or connect the second capacitor from the vacuum pump through state switching; Wherein, when the second capacitor is connected to the vacuum pump, the capacitor circuit is in a capacitance increasing state; When the second capacitor is disconnected from the vacuum pump, the capacitor circuit is in a non-capacitance-increasing state. The vacuum pump control method for a biopsy system according to claim 4, wherein the vacuum pump control circuit further comprises a controller, and the controller is connected to the first state switching element. The vacuum pump control method for a biopsy system according to claim 5, wherein the vacuum pump control circuit further comprises a vacuum pump current acquisition circuit, and the controller is connected to the vacuum pump current acquisition circuit. The vacuum pump control method for a biopsy system according to claim 5 is characterized in that the vacuum pump control circuit further includes a second state switching element, the vacuum pump is connected to a power supply, the second state switching element is connected in series with the power supply and the vacuum pump, the second state switching element is used to control the power supply state of the vacuum pump through state switching, and the second state switching element is connected to the controller. The vacuum pump control method for a biopsy system according to any one of claims 4 to 7, wherein the state of the first state switching element includes a closed state and an open state, When the first state switching element is in a closed state, the second capacitor is connected in parallel with the first capacitor and the vacuum pump; When the first state switching element is in the off state, the second capacitor is disconnected from the vacuum pump and the first capacitor at the same time. The vacuum pump control method for a biopsy system according to claim 4, wherein the first state switching element is a high-voltage power relay. The vacuum pump control method for a biopsy system according to claim 1, wherein the vacuum pump is further connected to a second state switching element for switching the power supply state of the vacuum pump, and the vacuum pump control method further comprises: The vacuum pump stops running by controlling the second state switching element to switch to the off state. The vacuum pump control method for a biopsy system according to any one of claims 1 to 10, wherein the vacuum pump is an AC vacuum pump. A vacuum pump control module for a biopsy system, the control module being applied to a vacuum pump control circuit in the biopsy system, the vacuum pump control circuit including a capacitor circuit connected in parallel with the vacuum pump, the control module being configured to: When the vacuum pump is started with load, controlling the capacitor circuit connected in parallel with the vacuum pump to be in a capacitance increasing state; When the vacuum pump is running smoothly, the capacitor circuit connected in parallel with the vacuum pump is controlled to switch to a non-capacitance-increasing state. A vacuum pump control circuit for a biopsy system includes a capacitor circuit connected in parallel with the vacuum pump, wherein the vacuum pump control circuit is used to implement the steps of the vacuum pump control method for a biopsy system according to any one of claims 1 to 11. The vacuum pump control circuit of the biopsy system according to claim 13, wherein the capacitor circuit comprises: a first capacitor connected in parallel with the vacuum pump; a second capacitor connected in parallel with the vacuum pump; a first state switching element, the first state switching element being connected in series with the second capacitor, the first state switching element being configured to disconnect or connect the second capacitor from the vacuum pump through state switching; Wherein, when the second capacitor is connected to the vacuum pump, the capacitor circuit is in a capacitance increasing state; When the second capacitor is disconnected from the vacuum pump, the capacitor circuit is in a non-capacitance-increasing state. The vacuum pump control circuit of the biopsy system according to claim 14, characterized in that the vacuum pump control circuit further includes a controller, and the controller is connected to the first state switching element. The vacuum pump control circuit of the biopsy system according to claim 15, characterized in that the vacuum pump control circuit further includes a vacuum pump current acquisition circuit, and the controller is connected to the vacuum pump current acquisition circuit. The vacuum pump control circuit of the biopsy system according to claim 15 is characterized in that the vacuum pump control circuit also includes a second state switching element, the vacuum pump is connected to a power supply, the second state switching element is connected in series with the power supply and the vacuum pump, the second state switching element is used to control the power supply state of the vacuum pump through state switching, and the second state switching element is connected to the controller. The vacuum pump control circuit of the biopsy system according to any one of claims 14 to 17, wherein the state of the first state switching element includes a closed state and an open state, When the first state switching element is in a closed state, the second capacitor is connected in parallel with the first capacitor and the vacuum pump; When the first state switching element is in the off state, the second capacitor is disconnected from the vacuum pump and the first capacitor at the same time. The vacuum pump control circuit of the biopsy system according to any one of claims 14 to 17, wherein the first state switching element is a high-voltage power relay. A biopsy system comprises a vacuum pump and a vacuum pump control circuit according to any one of claims 13 to 19.