Smoke prevention device, endoscope system and control method thereof

Abstract

The invention provides an anti-smoke device, an endoscope system and a control method of the endoscope system. The anti-smoke device comprises a gas circulation unit; the gas circulation unit comprises a circulation channel, a magnetic field assembly and a moving part; the moving part and the magnetic field assembly are contained in the circulation channel, the circulation channel is provided with a through hole, and a one-way valve is arranged on the through hole to be configured as an air inlet hole and / or an air outlet hole; the magnetic field assembly is used for providing magnetic field force to drive the moving part to move; gas flows in from the gas inlet hole and flows out from the gas outlet hole, and the flowing-out gas is used for purging the surface of the lens of the endoscope. According to the configuration, the magnetic field assembly drives the moving part to move so as to increase or reduce the air pressure in the circulating channel, then air flows in the circulating channel, meanwhile, the flowing-out air is used for blowing the surface of the endoscope lens, smoke generated by the action of a high-frequency instrument can be relieved or even eliminated, and the situation that the endoscope lens is blurred by the smoke can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to an anti-smoke device, an endoscope system and a control method thereof. Background Art

[0002] With the popularization of surgical technology, it is becoming more and more common for medical robots to assist doctors in performing surgical operations. As the core of surgical robots, medical endoscopes play a vital role in surgery. During surgery, the temperature difference between the inside and outside of the abdominal cavity and the high-frequency movement of the instrument will cause the endoscope lens to fog up, resulting in blurred vision. Once the lens fogs up, the operation often needs to be suspended, the endoscope needs to be pulled out and wiped with warm saline before the operation can be resumed. The warm saline needs to be repeatedly taken off the operating table and heated with a sterile heating vessel before being sent back to the operating table, which increases the manpower burden and reduces the efficiency of the operation. Summary of the invention

[0003] The object of the present invention is to provide an anti-smog device, an endoscope system and a control method thereof, so as to solve the problem of blurred vision caused by fogging of the endoscope lens.

[0004] In order to achieve the above-mentioned object, the present invention provides a smoke prevention device, comprising: a gas circulation unit;

[0005] The gas circulation unit comprises a circulation channel, a magnetic field assembly and a moving part; the moving part and the magnetic field assembly are accommodated in the circulation channel, the circulation channel has a through hole, and a one-way valve is provided on the through hole to be configured as an air inlet and / or an air outlet;

[0006] The magnetic field assembly is used to provide a magnetic field force to drive the moving part to move, so as to realize the gas flow in the circulation channel; the gas flows in from the air inlet and flows out from the air outlet, and the outflowing gas is used to purge the surface of the endoscope lens.

[0007] Optionally, the gas circulation unit also includes a changing portion, which protrudes outward along the axial direction of the circulation channel. The changing portion is arranged on the outside of the circulation channel and partially covers the air outlet, and is used to change the flow direction of the gas so that the gas is blown out radially along the circulation channel.

[0008] Optionally, the direction-changing portion is rotatable around an axis perpendicular to the axial direction of the circulation channel.

[0009] Optionally, the magnetic field assembly includes a magnet and a coil, the coil is connected to the moving part, the magnet and the coil generate magnetic fields that attract or repel each other to drive the moving part to reciprocate; wherein the heat generated by the coil when it is energized is used to control the temperature inside the circulation channel to reduce the temperature difference between the inside and outside of the abdominal cavity.

[0010] Optionally, the anti-smoke device further includes a flushing unit;

[0011] The flushing unit includes a liquid supply channel, which is used for supplying cleaning liquid to flow. The cleaning liquid flows to the through hole through the liquid supply channel and is sprayed out from the through hole. The sprayed cleaning liquid is used to clean the surface of the endoscope lens.

[0012] Optionally, the anti-smoke device also includes a gas-liquid conversion component, which is arranged in the circulation channel and / or the liquid supply channel, and the circulation channel and the liquid supply channel are respectively connected to the gas-liquid conversion component, and the gas-liquid conversion component is opened or closed to selectively open the circulation channel or the liquid supply channel.

[0013] In order to achieve the above object, the present invention also provides an endoscope system, comprising: an endoscope body, a control unit, a monitoring unit and the anti-smoke device as described above;

[0014] The endoscope body comprises a delivery pipeline and an endoscope lens, the endoscope lens is arranged at the distal end of the delivery pipeline, and the anti-smoke device is accommodated in the delivery pipeline and arranged close to the endoscope lens;

[0015] The monitoring unit is arranged inside the delivery pipeline and is used to obtain the operation information of each unit in the anti-smoke device and the status information of the endoscope body;

[0016] The control unit is arranged inside or outside the delivery pipeline, and the control unit is communicated with the monitoring unit. The control unit is used to issue corresponding control instructions according to the operation information of each unit in the anti-smoke device and the status information of the endoscope body.

[0017] Optionally, the endoscope system further includes a display unit, which is communicatively connected to the endoscope lens and is used for displaying the image captured by the endoscope lens in real time.

[0018] In order to achieve the above object, the present invention further provides an endoscope system control method, which is applied to the endoscope system as described above, and the endoscope system control method comprises:

[0019] Obtaining operation information of each unit in the anti-smoke device and status information of the endoscope lens;

[0020] Based on the operation information and the status information, corresponding control instructions are issued.

[0021] Optionally, the control instructions include: airflow circulation control instructions, temperature control instructions, direction-changing part extension and retraction instructions, gas-liquid switching instructions, liquid flow control instructions and image processing instructions.

[0022] In summary, in the anti-smoke device, endoscope system and control method thereof provided by the present invention, the anti-smoke device includes: a gas circulation unit; the gas circulation unit includes a circulation channel, a magnetic field component and a moving part; the moving part and the magnetic field component are accommodated in the circulation channel, the circulation channel has a through hole, and a one-way valve is provided on the through hole to be configured as an air inlet and / or an air outlet; the magnetic field component is used to provide a magnetic field force to drive the moving part to move, so as to realize the gas flow in the circulation section; the gas flows in from the air inlet and flows out to the air outlet, and the outflowing gas is used to purge the surface of the endoscope lens. Compared with the existing endoscope system, the present application has the following advantages:

[0023] (1) The magnetic field assembly drives the moving part to move, so as to increase or decrease the gas pressure inside the circulation channel, thereby driving the gas to flow in from the air inlet hole and out from the air outlet hole, so as to realize the gas flow inside the circulation channel. At the same time, the outflowing gas is used to purge the surface of the endoscope lens, which can slow down or even eliminate the smoke generated by the high-frequency instrument movement and avoid blurring the endoscope lens;

[0024] (2) The deflection portion protrudes outward along the axial direction of the circulation channel and is arranged on the outer side of the circulation channel to cover the air outlet, so that the gas blown out from the through hole is blocked by the side wall of the deflection portion and changes its flow direction, and finally blows out along the radial direction of the circulation channel, which can better disperse the smoke and avoid fogging of the endoscope lens, while also reducing unnecessary damage to the endoscope lens;

[0025] (3) The heat generated by the coil being energized is used to control the temperature inside the circulation channel, so as to reduce the temperature difference between the inside and outside of the abdominal cavity, thereby preventing the endoscope lens from fogging due to the temperature difference when the endoscope body enters the abdominal cavity from the outside;

[0026] (4) The cleaning liquid flows to the through hole through the liquid supply channel and is sprayed out from the through hole. The sprayed cleaning liquid is used to clean the surface of the endoscope lens to achieve flushing of the contaminated endoscope lens, thereby avoiding the need to remove the endoscope body from the body and then repeatedly wipe it with warm saline in the prior art, thereby improving the practicality of the endoscope system and the efficiency of the operation;

[0027] (5) The gas-liquid conversion element improves the practicality of the endoscope system by opening or closing to select either the circulation channel or the liquid supply channel. It can not only avoid the fogging of the endoscope lens caused by smoke generated by temperature difference or high-frequency instrument movement, but also can flush the endoscope lens in time when the endoscope lens is contaminated to ensure the cleanliness of the endoscope lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of an endoscope system in the prior art in a surgical scene;

[0029] Figure 2 A schematic diagram of a working scene of an endoscope system in the prior art;

[0030] Figure 3 It is a schematic diagram of the working scene of the endoscope system in the abdominal cavity in the prior art;

[0031] Figure 4 A schematic diagram of the structure of the gas circulation unit proposed in an embodiment of the present invention when it is in a working state;

[0032] Figure 5 A schematic diagram of a gas circulation unit according to an embodiment of the present invention when ejecting gas;

[0033] Figure 6 A schematic diagram of the structure of the direction-changing unit in the embodiment of the present invention when it is in a working state;

[0034] Figure 7 A schematic diagram of the structure of the flushing unit proposed in an embodiment of the present invention when it is in a working state;

[0035] Figure 8 A schematic diagram of a flushing unit according to an embodiment of the present invention spraying cleaning liquid;

[0036] Fig. 9 A schematic diagram of the structure of a first gas-liquid conversion element proposed in an embodiment of the present invention;

[0037] Fig.10 A schematic diagram of the structure of a second gas-liquid conversion element proposed in an embodiment of the present invention;

[0038] Fig.11 A cross-sectional view of a second gas-liquid conversion member provided in an embodiment of the present invention;

[0039] Fig.12 A schematic diagram of the overall structure of an endoscope system provided in an embodiment of the present invention;

[0040] Fig.13 for Fig.12 A partial enlarged view of

[0041] Fig.14An exploded diagram of an endoscope system provided in an embodiment of the present invention;

[0042] Fig.15 A schematic diagram of the structure of an endoscope body provided in an embodiment of the present invention;

[0043] Fig.16 A schematic diagram of the working principle of the gas circulation unit proposed in an embodiment of the present invention;

[0044] Fig.17 A schematic diagram of the working principle of the direction-changing unit according to an embodiment of the present invention;

[0045] Fig.18 A schematic diagram of the working principle of the flushing unit proposed in an embodiment of the present invention;

[0046] Fig.19 A schematic diagram of the working principle of coil heating proposed in an embodiment of the present invention;

[0047] Fig. 20 This is a schematic diagram of the working principle of the control unit proposed in an embodiment of the present invention.

[0048] The description of each reference numeral is as follows:

[0049] 10-gas circulation unit; 101-circulation channel; 102-moving member; 103-through hole; 104-direction changing part; 105-magnet; 106-coil; 1041-axis line;

[0050] 11-flushing unit; 111-liquid supply channel; 112-liquid pipeline control valve;

[0051] 12-gas-liquid conversion parts;

[0052] 13-endoscope body; 131-transmission pipeline; 132-endoscope lens; 133-cold light; 134-check valve;

[0053] 14- control unit;

[0054] 20- auxiliary equipment; 21- control console; 22- patient operation platform; 23- image platform; 24- operation bed; 25- instrument table;

[0055] 30- endoscope; 31- fan-shaped forceps; 32- clamps; 33- scissors; 34- aspirator; 35- obstructing organ; 36- target organ. DETAILED DESCRIPTION

[0056] In order to make the purpose, advantages and features of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In addition, the structure shown in the drawings is often a part of the actual structure. In particular, the emphasis of each drawing is different, and sometimes different scales are used.

[0057] As used in this specification, the singular forms "one", "an" and "the" include plural objects, the term "or" is generally used to include the meaning of "and / or", the term "several" is generally used to include the meaning of "at least one", and the term "at least two" is generally used to include the meaning of "two or more". In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features, "one end" and "the other end" and "proximal end" and "distal end" generally refer to two corresponding parts, which not only include the endpoints, wherein the "proximal end" generally represents the direction close to the doctor during the operation, and the "distal end" generally represents the direction close to the lesion during the operation. 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 body; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. In addition, as used in this specification, an element disposed on another element generally only indicates that there is a connection, coupling, cooperation or transmission relationship between the two elements, and the connection, coupling, cooperation or transmission between the two elements may be direct or indirect through an intermediate element, and it cannot be understood as indicating or implying the spatial position relationship between the two elements, that is, one element may be in any orientation such as inside, outside, above, below or on one side of another element, unless the content clearly indicates otherwise. The terms "upper", "lower", "top" and "bottom" are generally relative position relationships arranged in the direction of gravity; the terms "vertical, vertical direction" generally refer to the direction of gravity, which is generally perpendicular to the ground, and "horizontal, horizontal plane direction" generally refers to the direction parallel to the ground; for ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0058] The object of the present invention is to provide an anti-smog device, an endoscope system and a control method thereof, so as to solve the problem of blurred vision caused by fogging of the endoscope lens.

[0059] Please refer to Figures 1 to 3The existing laparoscopic surgery system mainly consists of auxiliary equipment 20, instrument table 25, control console 21, patient operation platform 22, image platform 23, operation table 24 and operators (please refer to Figure 1 ), wherein the patient surgical platform 22 is mainly composed of tool arms, surgical instruments (such as puncture devices, etc.), adjustment arms, and surgical trolleys. The patient surgical platform 22 is mainly used to mount the robotic arm (including the adjustment arm and the tool arm) and surgical instruments to perform master-slave mode surgical actions, and has the functions of preoperative whole machine movement and surgical position adjustment. With the development of medical technology, the internal surgical scene of the human body is a 3D image taken by the endoscope 30 of the medical robot in the human body (please refer to Figure 2 ), collected by the image host, which can transmit the video signal to the display screen for display processing through a video wireless transceiver or wired methods. Only when the 3D image of the human body is clearly captured can the operation proceed smoothly. During laparoscopic surgery, there are many instruments inside the human body, which are operated by doctors and nurses respectively. Please refer to Figure 3 , the main instruments include: fan-shaped forceps 31, clamps 32, scissors 33, aspirator 34, etc., and the working status of each instrument inside the abdominal cavity is displayed by real-time photography of the endoscope 30. It mainly removes the obstructing organs 35 in the abdominal cavity to perform corresponding treatment on the target organs 36. Once the endoscope lens produces fog due to the temperature difference between the inside and outside of the abdominal cavity or the smoke blurs the vision due to the action of the high-frequency energy device, the operation has to be suspended and the endoscope 30 is taken out from the abdominal cavity for treatment. Based on this, the present invention provides an anti-smoke device, which can timely process the smoke of the endoscope lens to ensure the smooth progress of the operation, and at the same time optimizes the step of pausing the lens fog to improve the efficiency of the operation. It should be noted that this embodiment takes laparoscopic surgery as an example, but it does not mean that the anti-smoke device proposed in this embodiment can only be used in laparoscopic surgery. As long as the endoscope 30 is needed to take images of the internal human body surgery, it can be used, such as: gastroscope, colonoscope, bronchoscope, cystoscope, etc., and this embodiment is not limited to this.

[0060] Please refer to Figure 4 The present invention provides an anti-smoke device, comprising: a gas circulation unit 10; the gas circulation unit 10 comprises a circulation channel 101, a magnetic field component and a moving part 102; the moving part 102 and the magnetic field component are accommodated in the circulation channel 101, the circulation channel 101 has a through hole 103, and a one-way valve is arranged on the through hole 103 to be configured as an air inlet and / or an air outlet; the magnetic field component is used to provide a magnetic field force to drive the moving part 102 to move, so as to realize the gas flow in the circulation channel 101; the gas flows in from the air inlet and flows out to the air outlet, and the outflowing gas is used to purge the surface of the endoscope lens 132. It should be noted that in Figure 4In the illustrated example, the gas is the gas inside the abdominal cavity and does not need to be blown in through an external device; the magnetic field assembly and the through hole 103 are respectively located on both sides of the movable member 102 along the axial direction of the circulation channel 101; the movable member 102 moves along the axial direction of the circulation channel 101; wherein the movable member 102 is a diaphragm, a one-way valve 134 is provided on the through hole 103, the through hole 103 located on the side wall of the circulation channel 101 is configured as a one-way air inlet hole (i.e., gas can only enter but not exit), and the multiple through holes 103 located at the end of the circulation channel 101 are configured as one-way air outlet holes (i.e., gas can only exit but not enter), and the circulation channel 101 is divided into a driving section (at Figure 4 The left part of the moving part 102) and the circulation section (in Figure 4 The magnetic field force provided by the magnetic field assembly drives the moving part 102 to move, changes the volume of the circulation segment, and then changes the pressure of the circulation segment, thereby promoting the circulation of gas to achieve a dynamic balance of the pressure inside the abdominal cavity. In some other embodiments, the number of through holes 103 can also be only one, and it is arranged at the end of the circulation channel 101. In this case, the air inlet and the air outlet can also be the same through hole 103; the magnetic field assembly and the through hole 103 can also be arranged radially along the circulation channel 101, or the magnetic field assembly and the through hole 103 can also be irregularly arranged in the circulation channel 101, and the moving part 102 can also move in an axial direction perpendicular to the circulation channel 101, as long as it is ensured that the magnetic field assembly drives the moving part 102 to move so that gas circulation can be achieved in the circulation channel 101. With such a configuration, the gas blown out from the air outlet can slow down or even eliminate the smoke generated during the operation, thereby avoiding the situation where the field of view of the endoscope lens 132 is blocked by the smoke and the operation cannot be continued. This optimizes the step of pausing the operation to clean the endoscope lens 132 and effectively improves the efficiency of the operation.

[0061] Furthermore, the magnetic field assembly includes a magnet 105 and a coil 106, and the coil 106 is connected to the moving member 102. The magnet 105 and the coil 106 generate magnetic fields that attract or repel each other to drive the moving member 102 to reciprocate. Figure 4For example, the magnet 105 and the coil 106 are arranged at intervals along the axial direction of the circulation channel 101, and the moving part 102 reciprocates along the axial direction of the circulation channel 101. It should be noted that the arrangement of the magnet 105 and the coil 106 includes but is not limited to being arranged at intervals along the axial direction of the circulation channel 101, and can also be arranged in a direction perpendicular to the axial direction of the circulation channel 101, or the coil 106 can be directly wound around the outer periphery of the magnet 105; the movement direction of the moving part 102 includes but is not limited to being arranged in the axial direction of the circulation channel 101, and can also be arranged in a direction perpendicular to the axial direction of the circulation channel 101, as long as the magnetic field component drives the moving part 102 to move so as to realize gas circulation in the circulation channel 101. The magnet 105 is a permanent magnet that can generate a permanent magnetic field. The coil 106 generates a temporary magnetic field after the industrial frequency alternating current is passed through it. As can be understood by those skilled in the art, alternating current refers to a current whose direction changes periodically over time. When the coil 106 is passed through currents of different current directions, a force of mutual attraction or mutual repulsion will be generated between the temporary magnetic field and the permanent magnetic field to drive the moving part 102 to reciprocate. The operator can change the frequency and amplitude of the alternating current to change the frequency and speed of the reciprocating motion of the moving part 102. Furthermore, the heat generated by the coil 106 when it is energized is used to control the temperature inside the circulation channel 101 to reduce the temperature difference between the inside and outside of the abdominal cavity. As can be understood by those skilled in the art, when the operation begins, the endoscope enters the abdominal cavity. At this time, due to the temperature difference between the temperature of the endoscope lens 132 and the temperature inside the human abdominal cavity, fog may be generated due to the temperature difference when entering the body, thereby affecting the operation. In the present embodiment, the heat generated by the coil 106 when it is energized can control the internal temperature of the circulation channel 101. When the gas is blown out from the through hole 103, part of the heat will also be blown to the surface of the endoscope lens 132, thereby achieving an indirect demisting effect, further improving the efficiency of the operation.

[0062] Please refer to Figures 5 and 6 The gas circulation unit 10 further includes a direction-changing portion 104, which protrudes outward along the axial direction of the circulation channel 101. The direction-changing portion 104 is arranged outside the circulation channel 101 and partially covers the gas outlet hole, and is used to change the flow direction of the gas so that the gas is blown out along the radial direction of the circulation channel 101. It should be noted that Figure 6In the illustrated example, the position of the direction-changing portion 104 only serves as a demonstration. When actually used, the direction-changing portion 104 needs to cover at least the outer contour of the entire through hole 103 on the cross section parallel to the plane where the endoscope lens 132 is located, so that the gas is blown out along the radial direction of the circulation channel 101, and will not be blown out along the axial direction of the circulation channel 101, thereby causing waste. In some other embodiments, the direction-changing portion 104 can rotate around an axis 1041 perpendicular to the axial direction of the circulation channel 101, or can be set at a fixed position to meet the demand for gas direction change; preferably, the direction-changing portion 104 can rotate around an axis 1041 perpendicular to the axial direction of the circulation channel 101 to improve the operability of the direction-changing portion 104, and the direction-changing angle of the gas can be adjusted according to the defogging effect, further improving the defogging effect of the anti-smog device. The direction-changing portion 104 can be a spherical mesh, a curved ring, etc., which can control and guide the flow direction of the airflow and liquid flow through a circuit, a magnetic circuit, a wireless control or a mechanical structure. Those skilled in the art can configure it according to actual conditions.

[0063] Please refer to Figures 7 and 8 The anti-smoke device also includes a flushing unit 11; the flushing unit 11 includes a liquid supply channel 111, and the liquid supply channel 111 is used to supply cleaning liquid to circulate. The cleaning liquid flows to the through hole 103 through the liquid supply channel 111 and is sprayed out from the through hole 103. The sprayed cleaning liquid is used to clean the surface of the endoscope lens 132. It should be noted that the cleaning liquid can be physiological saline, which needs to be injected from outside the body through the liquid supply channel 111; a part of the liquid supply channel 111 can be shared with the gas circulation channel 101, or can be set separately; the anti-smoke device can also include an image recognition algorithm. When the image recognition algorithm recognizes that there are signs of contamination in the image taken by the endoscope lens 132, the gas circulation can be paused and the liquid supply channel 111 can be connected (this embodiment takes the solution in which a part of the liquid supply channel 111 is shared with the gas circulation channel 101 as an example), so that the distal end of the liquid supply channel 111 is shared with the gas circulation channel 101, so that the cleaning liquid can be sprayed out from the through hole 103. At the same time, based on the action of the changing part 104, the flow direction of the cleaning liquid is changed from along the axial direction of the gas circulation channel 101 to along the radial direction of the gas circulation channel 101, so as to better rinse the surface of the endoscope lens 132.

[0064] Please refer to Figures 9 to 11 The anti-smoke device further includes a gas-liquid conversion element 12, which is disposed in the circulation channel 101 and / or the liquid supply channel 111. The circulation channel 101 and the liquid supply channel 111 are respectively connected to the gas-liquid conversion element 12. The gas-liquid conversion element 12 is opened or closed to selectively open the circulation channel 101 or the liquid supply channel 111. In an optional embodiment, Fig. 9As shown, the connection port located above the gas-liquid conversion member 12 can be connected to the circulation channel 101 or the liquid supply channel 111; taking the upper connection port connected to the circulation channel 101 and the connection port on the side wall connected to the liquid supply channel 111 as an example, a liquid pipeline control valve 112 is provided at the connection between the liquid supply channel 111 and the connection port. When gas circulation is required, the gas-liquid conversion member 12 is opened and the liquid pipeline control valve 112 is closed; when liquid flushing is required, the gas-liquid conversion member 12 is closed and the liquid pipeline control valve 112 is opened. In another optional embodiment, as Figure 10 to Figure 11 As shown, the connection ports located on the bottom and side walls of the gas-liquid conversion component 12 are respectively connected to the circulation channel 101 and the liquid supply channel 111, and are respectively connected to different pipelines so that the gas and liquid can flow in different pipelines, and a control valve is configured to selectively open the circulation channel 101 or the liquid supply channel 111.

[0065] Please refer to Figures 12 to 15 The present invention also provides an endoscope system, comprising: an endoscope body 13, a control unit 14, a monitoring unit and the above anti-smog device; the endoscope body 13 comprises a delivery pipeline 131 and an endoscope lens 132, the endoscope lens 132 is arranged at the distal end of the delivery pipeline 131, and the anti-smog device is accommodated in the delivery pipeline 131 and is arranged near the endoscope lens 132 (such as Fig.15 The monitoring unit is arranged inside the delivery pipeline 131, and is used to obtain the operation information of each unit in the anti-smog device and the status information of the endoscope body 13; the control unit 14 is arranged inside or outside the delivery pipeline 131, and the control unit 14 is connected to the monitoring unit for communication, and the control unit 14 is used to issue corresponding control instructions according to the operation information of each unit in the anti-smog device and the status information of the endoscope body 13. Furthermore, the endoscope system also includes a display unit (not shown in the figure), which is connected to the endoscope lens for communication, and is used to display the image captured by the endoscope lens in real time.

[0066] It should be noted that the display unit can be a display screen, which can display the image captured by the endoscope lens in real time, so that the operator can observe the situation inside the abdominal cavity in real time. At the same time, when the operator observes an abnormal situation, he can also manually issue instructions through the control unit 14, which further improves the practicality and safety of the endoscope system; the endoscope body 13 also includes a cold light 133 to illuminate the inside of the abdominal cavity, so that the light within the field of view of the endoscope lens 132 is sufficient, and a clear image of the inside of the abdominal cavity can be formed; the monitoring unit includes a temperature sensor and an air pressure sensor arranged in the circulation channel 101, a water pressure sensor arranged in the liquid supply channel 111, and a smoke sensor arranged at the far end of the delivery pipeline 131; The control unit 14 includes a host computer system, a gas circulation control system, a gas-liquid switching control system, a telescopic control system for the turning part (only when the turning part 104 is rotatable around an axis 1041 perpendicular to the axial direction of the circulation channel 101), a liquid working control system, an endoscope anti-fog control system and an image processing system, wherein the gas circulation control system, the gas-liquid switching control system, the telescopic control system for the turning part, the liquid working control system, the endoscope anti-fog control system and the image processing system are all communicatively connected to the host computer system, and the monitoring unit is also communicatively connected to the host computer system; the specific working principles of the monitoring unit and the control unit 14 refer to the description of the endoscope system control method in this embodiment, and will not be repeated here.

[0067] Please refer to Figures 16 to 20 The present invention also provides an endoscope system control method, which is applied to the above endoscope system. The endoscope system control method includes:

[0068] Step S1: obtaining the operation information of each unit in the anti-smoke device and the status information of the endoscope lens 132;

[0069] Step S2: issuing corresponding control instructions based on the operation information and status information.

[0070] It should be noted that the operation information of each unit in the anti-smog device specifically includes: gas circulation operation information, direction-changing unit action information, liquid flow circuit operation information, and endoscope anti-fog operation information. The operation information of each unit is obtained from the data monitored by the monitoring unit; the status information of the endoscope lens 132 is whether it is contaminated. The status information of the endoscope lens 132 is obtained from the data processed by the image processing system based on the image recognition algorithm. The working principle of each unit is explained one by one below:

[0071] Please refer to Fig.16When the coil 106 is fed with an alternating current of 50 Hz, the coil 106 will generate a temporary magnetic field and be subjected to force in the magnetic field. At this time, the permanent magnetic field of the magnet 105 itself will interact with the temporary magnetic field (controllable mutual attraction or repulsion), and drive the moving part 102 to reciprocate. The reciprocating motion of the moving part 102 will cause the gas in the pipeline to increase or decrease. The through hole 103 of the circulation channel 101 is provided with a one-way valve 134 (which can be configured as an inlet valve or an outlet valve according to demand); when the moving part 102 moves in a direction away from the magnet 105 (compressed gas), the through hole 103 equipped with the inlet valve is closed, and the through hole 103 equipped with the outlet valve is opened, and the gas can only go out but not in; when the moving part 102 moves in a direction close to the magnet 105, the through hole 103 equipped with the inlet valve is opened, and the through hole 103 equipped with the outlet valve is closed, and the gas can only go in but not out. The size of the gas flow rate can be adjusted in real time according to the amplitude and frequency of the coil 106 power supply or other methods. The gas circulation working information can be obtained from the gas pressure value of the circulation channel 101.

[0072] Please refer to Fig.17 At the beginning of the operation, the upper computer system will determine whether the gas circulation in the circulation channel 101 is turned on (it is turned on by default during the operation). At this time, the control conductor is energized to drive the direction-changing part 104 to rotate around the axis 1041 perpendicular to the axial direction of the circulation channel 101; at the same time, if the endoscope lens 132 is fogged due to the temperature difference between the inside and outside of the abdominal cavity at the beginning of the operation, it is also necessary to connect the liquid supply channel 111 at the beginning of the operation. At this time, the control conductor is also energized to drive the direction-changing part 104 to rotate around the axis 1041 perpendicular to the axial direction of the circulation channel 101; if the circulation channel 101 and the liquid supply channel 111 are not working at the beginning of the operation, the direction-changing part 104 does not move; when the operation is completed, the direction-changing part 104 returns to the initial state, and the endoscope body 13 withdraws from the abdominal cavity. The action information of the direction-changing part is obtained by the energized state of the control conductor.

[0073] Please refer to Fig.18 When the image transmitted back by the endoscope lens 132 is processed by the image processing system and it is recognized that the endoscope lens 132 is contaminated, the gas-liquid conversion element 12 opens the liquid supply channel 111 and closes the circulation channel 101. The liquid supply channel 111 sprays the cleaning liquid to the surface of the endoscope lens 132 through the through hole 103 until the image processing system recognizes that the endoscope lens 132 is not contaminated. Then, the gas-liquid conversion element 12 closes the liquid supply channel 111, opens the circulation channel 101, restores the gas circulation, and continues the subsequent operation. The working information of the liquid flow circuit is obtained from the data processed by the image processing system.

[0074] Please refer to Fig.19At the beginning of the operation, the endoscope body 13 enters the abdominal cavity. Due to the temperature difference between the inside and outside of the abdominal cavity, the endoscope lens 132 is fogged. At this time, the heat generated by the coil 106 is energized to heat the circulation channel 101. The temperature of the heating is sensed in real time by the temperature sensor and fed back to the host computer system. When the temperature is too high or too low, the temperature in the circulation channel 101 can be controlled by controlling the amplitude and frequency of the coil 106. When the gas is blown out, part of the heat is blown to the endoscope lens 132 to achieve the effect of indirect defogging. The anti-fogging working information of the endoscope is obtained from the temperature change data monitored by the temperature sensor.

[0075] Furthermore, the control instructions include: airflow circulation control instructions, temperature control instructions, direction-changing part extension and contraction instructions, gas-liquid switching instructions, liquid flow control instructions, and image processing instructions. Fig. 20 The following describes the control methods of the host computer system on each system:

[0076] The air pressure of the gas circulation control system is monitored by the air pressure sensor and fed back to the host computer system in real time. The host computer system issues airflow circulation control instructions in real time based on the feedback information to control the current operating frequency, voltage amplitude and conduction state of the circulation channel 101 of the gas circulation control system.

[0077] The gas-liquid switching control system has information fed back by the image processing system to the host computer system, and the host computer system issues a gas-liquid switching instruction to open or close the gas-liquid switching element and select one of the circulation channel 101 and the liquid supply channel 111 to be connected.

[0078] The retraction and extension control system of the retraction part can drive the retraction part 104 to rotate around an axis 1041 perpendicular to the axial direction of the circulation channel 101 based on the retraction and extension command of the retraction part 104 issued by the host computer system at the beginning of the operation, so that the airflow and cleaning liquid are ejected radially along the circulation channel 101.

[0079] The water pressure of the liquid flow control system is monitored by a water pressure sensor and fed back to the host computer system in real time. Based on the feedback information, the host computer system issues liquid flow control instructions in real time to control the water flow pressure of the liquid flow control system.

[0080] The endoscope anti-fog control system is based on the information fed back to the host system by the image processing system, and the host system issues a temperature control instruction to use the heat generated by the coil 106 when it is energized to heat the circulation channel 101 or directly control the liquid supply channel 111 to rinse the lens.

[0081] The image processing system is used to obtain image information inside the abdominal cavity and visual information of the endoscope lens 132, and the host computer system issues image processing instructions to enable it to recognize images or change the image refresh frequency when the endoscope lens 132 is fogged or the field of view is poor.

[0082] The monitoring unit is used to monitor the smoke condition of the endoscope lens 132, the air pressure and temperature in the circulation channel 101, the water pressure of the liquid supply channel 111 and other information, and feed the above information back to the host computer system.

[0083] In summary, in the anti-smoke device, endoscope system and control method thereof provided by the embodiments of the present invention, the anti-smoke device includes: a gas circulation unit; the gas circulation unit includes a circulation channel, a magnetic field component and a moving part; the moving part and the magnetic field component are accommodated in the circulation channel, the circulation channel has a through hole, and a one-way valve is provided on the through hole to be configured as an air inlet and / or an air outlet; the magnetic field component is used to provide a magnetic field force to drive the moving part to move, so as to realize the gas flow in the circulation channel; the gas flows in from the air inlet and flows out to the air outlet, and the outflowing gas is used to purge the surface of the endoscope lens. Compared with the existing endoscope system, the present application has the following advantages:

[0084] With such configuration, the magnetic field assembly drives the moving part to move, so as to increase or decrease the gas pressure inside the circulation channel, thereby driving the gas to flow in from the air inlet hole and out from the air outlet hole, so as to realize the gas flow inside the circulation channel. At the same time, the outflowing gas is used to purge the surface of the endoscope lens, which can blow away the smoke generated by the high-frequency instrument action to avoid blurring the endoscope lens.

[0085] Furthermore, the deflection portion protrudes outwardly along the axial direction of the circulation channel, and is arranged on the outer side of the circulation channel to cover the air outlet, so that the gas blown out from the through hole changes its flow direction after being blocked by the side wall of the deflection portion, and finally blows out along the radial direction of the circulation channel, which can better disperse the smoke and avoid fogging of the endoscope lens, while also reducing unnecessary damage to the endoscope lens;

[0086] Furthermore, the heat generated by the coil being energized is used to control the temperature inside the circulation channel, so as to reduce the temperature difference between the inside and outside of the abdominal cavity, thereby preventing the endoscope lens from fogging due to the temperature difference when the endoscope body enters the abdominal cavity from the outside;

[0087] Furthermore, the cleaning liquid flows to the through hole through the liquid supply channel and is sprayed out from the through hole. The sprayed cleaning liquid is used to clean the surface of the endoscope lens to achieve flushing of the contaminated endoscope lens, thereby avoiding the need to remove the endoscope body from the body and then repeatedly wipe it with warm saline in the prior art, thereby improving the practicality of the endoscope system and the efficiency of the operation;

[0088] Furthermore, the gas-liquid conversion component improves the practicality of the endoscope system by opening or closing to select either the circulation channel or the liquid supply channel. It can avoid the fogging of the endoscope lens caused by smoke generated by temperature difference or high-frequency instrument movement, and can also flush the endoscope lens in time when the endoscope lens is contaminated to ensure the cleanliness of the endoscope lens.

[0089] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A smoke prevention device, characterized in that: include: Gas circulation unit; The gas circulation unit comprises a circulation channel, a magnetic field assembly and a moving part; the moving part and the magnetic field assembly are accommodated in the circulation channel, the circulation channel has a through hole, and a one-way valve is provided on the through hole to be configured as an air inlet and / or an air outlet; The magnetic field assembly is used to provide a magnetic field force to drive the moving part to move, so as to realize the gas flow in the circulation channel; the gas flows in from the air inlet and flows out from the air outlet, and the outflowing gas is used to purge the surface of the endoscope lens.

2. The anti-smoke device according to claim 1, characterized in that: The gas circulation unit also includes a direction-changing portion, which protrudes outward along the axial direction of the circulation channel. The direction-changing portion is arranged on the outside of the circulation channel and partially covers the gas outlet hole, and is used to change the flow direction of the gas so that the gas is blown out radially along the circulation channel.

3. The anti-smoke device according to claim 2, characterized in that: The direction-changing portion is rotatable around an axis perpendicular to the axial direction of the circulation channel.

4. The anti-smoke device according to claim 1, characterized in that: The magnetic field assembly includes a magnet and a coil, and the coil is connected to the moving part. The magnet and the coil generate magnetic fields that attract or repel each other to drive the moving part to reciprocate. The heat generated by the coil when it is energized is used to control the temperature inside the circulation channel to reduce the temperature difference between the inside and outside of the abdominal cavity.

5. The anti-smoke device according to claim 1, characterized in that: The anti-smoke device also includes a flushing unit; The flushing unit includes a liquid supply channel, which is used for supplying cleaning liquid to flow. The cleaning liquid flows to the through hole through the liquid supply channel and is sprayed out from the through hole. The sprayed cleaning liquid is used to clean the surface of the endoscope lens.

6. The smoke prevention device according to claim 5, characterized in that: The anti-smoke device also includes a gas-liquid conversion component, which is arranged in the circulation channel and / or the liquid supply channel. The circulation channel and the liquid supply channel are respectively connected to the gas-liquid conversion component. The gas-liquid conversion component is opened or closed to selectively open the circulation channel or the liquid supply channel.

7. An endoscope system, characterized in that: include: An endoscope body, a control unit, a monitoring unit, and an anti-smoke device as claimed in any one of claims 1 to 6; The endoscope body comprises a delivery pipeline and an endoscope lens, the endoscope lens is arranged at the distal end of the delivery pipeline, and the anti-smoke device is accommodated in the delivery pipeline and arranged close to the endoscope lens; The monitoring unit is arranged inside the delivery pipeline and is used to obtain the operation information of each unit in the anti-smoke device and the status information of the endoscope body; The control unit is arranged inside or outside the delivery pipeline, and the control unit is communicated with the monitoring unit. The control unit is used to issue corresponding control instructions according to the operation information of each unit in the anti-smoke device and the status information of the endoscope body.

8. The endoscope system according to claim 7, characterized in that: The endoscope system further includes a display unit, which is communicatively connected to the endoscope lens and is used for displaying the image captured by the endoscope lens in real time.

9. A method for controlling an endoscope system, characterized in that: Applied to the endoscope system as described in claims 7 to 8, the endoscope system control method comprises: Obtaining operation information of each unit in the anti-smoke device and status information of the endoscope lens; Based on the operation information and the status information, corresponding control instructions are issued.

10. The endoscope system control method according to claim 9, characterized in that: The control instructions include: airflow circulation control instructions, temperature control instructions, direction-changing part extension and retraction instructions, gas-liquid switching instructions, liquid flow control instructions and image processing instructions.

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