Gastrointestinal tumor size measuring device under endoscope

Abstract

The invention relates to the technical field of gastrointestinal tumor detection, in particular to a gastrointestinal tumor size measuring device under an endoscope, which comprises an endoscope body, and a camera for acquiring image information in real time is arranged in the endoscope body; a grid forming assembly is arranged at one end, close to the camera, of the endoscope body; the grid forming assembly comprises a plurality of fixing blocks which are arranged in the circumferential direction with the endoscope body as the center, a plurality of extension mechanisms are fixedly connected to the fixing blocks, a testing rope is connected between the extension mechanisms located on the same horizontal line or the same vertical line, a plurality of evenly-arranged LED lamps are arranged on the testing rope, and the adjacent LED lamps are connected through electric wires; the extension mechanism is electrically connected with a control panel used for controlling the extension mechanism to work so as to adjust the length of the test rope, a tensioning mechanism used for tensioning the test rope is arranged in the endoscope body, and the control panel is electrically connected with the camera and the tensioning mechanism; the gastrointestinal tumor detector is simple to operate, can more accurately measure the size of gastrointestinal tumor, and is convenient for doctors to diagnose.

Description

Technical Field

[0001] The invention relates to the technical field of gastrointestinal tumor detection, and in particular to a gastrointestinal tumor size measuring device under laparoscope. Background Art

[0002] Gastrointestinal tumors usually include gastric polyps, intestinal polyps, gastrointestinal stromal tumors, small intestinal adenomas, small intestinal hemangiomas, gastric cancer, colorectal cancer and other diseases. Laparoscopic observation can achieve early detection and diagnosis, monitoring and treatment, and screening of high-risk groups. Modern laparoscopic equipment is equipped with a high-resolution optical system that can clearly display the detailed structure of the digestive tract. This makes it easier for doctors to observe potential tumor lesions, including early lesions, thereby improving the accuracy of detecting early tumors.

[0003] During clinical surgery or clinical examination, when doctors use laparoscopes for direct observation, the traditional approach is to rely on the doctor's touch and observation to assess the size and morphology of the tumor, but the accuracy is low. Some doctors will use substitutes such as wires and rulers to measure the actual size of the tumor, and measure the substitutes with precision instruments in vitro to determine the corresponding size data of the tumor. However, the human body is small and inconvenient for doctors to operate, and it often requires multiple people to operate. In addition, the measurement requires high technical requirements for medical staff, and the accuracy cannot be well guaranteed. The more advanced existing technology uses the laser ranging principle to measure the size of the tumor, but the technology is complex and costly. Therefore, the present invention provides a gastrointestinal tumor size measurement device under laparoscope, which is simple to operate and can more accurately measure the size of gastrointestinal tumors, making it easier for doctors to diagnose. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a gastrointestinal tumor size measurement device under laparoscope, which is simple to operate and can more accurately measure the size of gastrointestinal tumors, making it easier for doctors to make diagnosis.

[0005] In order to achieve the above-mentioned object, the technical scheme of the present invention is as follows: a gastrointestinal tumor size measurement device under laparoscope, comprising a laparoscope body, a camera for real-time acquisition of image information is arranged in the laparoscope body; a grid forming component is arranged at one end of the laparoscope body close to the camera, and the grid forming component is slidably matched with the laparoscope body;

[0006] The grid forming assembly includes a plurality of fixed blocks arranged circumferentially with the laparoscope body as the center, a plurality of extension mechanisms are fixedly connected to the fixed blocks, a test rope is connected between the extension mechanisms on the same horizontal line or the same vertical line, a plurality of evenly arranged LED lights are arranged on the test rope, and adjacent LED lights are electrically connected;

[0007] The extension mechanism is electrically connected to a control panel for controlling the extension mechanism to work so as to adjust the length of the test rope. A tensioning mechanism for straightening the test rope is provided in the laparoscope body. The control panel is electrically connected to the camera and the tensioning mechanism.

[0008] The technical principle of the above scheme is as follows: the laparoscope body is used to drive the camera and the grid-forming component into the body, and the grid-forming component is placed on the tumor. The test rope is kept taut by the extension mechanism and the tensioning mechanism to accurately form several grids to partition the tumor, and the display of the LED light is used for comparison to determine the size of the tumor.

[0009] The above scheme has the following beneficial effects:

[0010] 1. This solution reduces the dark angles in the body through the illumination of LED lights, making it easier to observe the internal conditions and provide a surgical field of view, thereby facilitating the physician to perform measurements and other operations.

[0011] 2. This solution uses a tensioning mechanism and an extension mechanism to control the tension of the test rope to maintain the accuracy of the distance displayed by the LED light on the test rope. At the same time, when adjusting the length of the test rope based on different tumor sizes, it is convenient to measure different tumor sizes.

[0012] 3. Compared with the existing technology, this solution uses intuitive LED lights to display the tumor in a grid, which is simple to operate while ensuring measurement accuracy.

[0013] Furthermore, a plurality of electric push rods are fixedly connected between the fixed block and the laparoscope body, and the electric push rods are electrically connected to the control panel.

[0014] Beneficial effect: The electric push rod is used to adjust the support length between the fixed block and the laparoscope body, so as to control the pull rope on the fixed block to come into close contact with the surrounding tissue, thereby improving the accuracy of subsequent measurements.

[0015] Furthermore, the extension mechanism includes a fixed rod, a sliding cavity is opened in the fixed rod, a sliding rod is slidably matched in the sliding cavity, and a plurality of transparent glass layers are fixedly connected to the sliding rod and the fixed rod;

[0016] One end of the test rope passes through the fixed rod and the sliding rod in sequence, and the fixed rod and the sliding rod slide in cooperation with the test rope; the sliding cavity is connected to an air pipe, one end of the air pipe away from the sliding cavity is located in the laparoscope body, and the air pipe is connected to an electromagnetic valve, which is electrically connected to the control panel;

[0017] The tensioning mechanism includes a roller and a plurality of rotating wheels, and the test rope cooperates with the roller and the rotating wheels in rotation; the roller is located inside the laparoscope body, and the roller is coaxially connected to a motor, the motor is fixedly connected to the laparoscope body, and the end of the test rope away from the sliding rod is fixedly connected to one side of the roller;

[0018] The rotating wheels are respectively connected to one end of the sliding rod away from the fixed rod, and the rotating wheels are rotationally matched with the sliding rod.

[0019] Beneficial effects: The opening and closing of the trachea is controlled by the electromagnetic valve to control the extension and retraction of the sliding rod; the brightness of the LED light on the test rope is controlled when the transparent glass layer is used to facilitate the camera to capture image data, thereby facilitating the determination of the tumor size.

[0020] During the extension of the sliding rod, the test rope is kept taut by using a rotating wheel that rotates with the sliding rod to facilitate measurement through the test rope; during the retraction of the sliding rod, the test rope wound on the roller is driven by a motor to be stored to keep the test rope in a taut state.

[0021] Furthermore, a plurality of scale lines are engraved on the output end of the electric push rod.

[0022] Beneficial effect: The change in the height of the fixed block from the camera is determined by the change in the length of the output end of the electric push rod, providing a basis for determining the height and size of the tumor.

[0023] Furthermore, the control panel is used to input and store LED display distance information corresponding to the extension length of the electric push rod; the control panel is used to obtain scale line data on the current electric push rod based on the image information, and obtain corresponding LED display distance information based on the scale line data.

[0024] Beneficial effect: The corresponding LED display distance information is determined by the extension length of the electric push rod to overcome the actual distance judgment error caused by the angle difference between the LED light observed by the camera and the edge of the tumor.

[0025] Furthermore, a second pressure sensor is fixedly connected to the bottom center of each fixed block, and the second pressure sensor is used to measure the contact pressure when the fixed block contacts an external object, and send the contact pressure to the control panel;

[0026] The control panel is used to compare the contact pressure with the set contact value. If the contact pressure is greater than the contact value, a pause command is sent to the corresponding electric push rod, and a height recording command is sent to the control panel; if the contact pressure is less than the contact value, a maintain command is sent to the corresponding electric push rod.

[0027] Beneficial effects: By judging the contact pressure, it is determined whether the fixed block is in contact with the surrounding tissue during the extension process of the fixed block. At the same time, the extension length of each electric push rod is recorded, and the height distance is introduced through the plane distance information for correction, so as to more accurately judge the tumor size.

[0028] Furthermore, a plurality of first pressure sensors are provided on the outer side of the rotating wheel, and the first pressure sensors are located between the test rope and the rotating wheel;

[0029] The first pressure sensor is used to test the pressure data on the rope pressure wheel and send the pressure data to the control panel. The control panel is used to compare the pressure data with the set first standard value. If the pressure data is greater than the first standard value, a maintenance instruction is sent to the extension mechanism and the tensioning mechanism; if the pressure data is less than the first standard value, a working instruction is sent to the tensioning mechanism, and a pause instruction is sent to the extension mechanism.

[0030] Beneficial effect: The pressure change of the pulling rope can be used to determine whether the current test rope is in a taut state, thereby improving the accuracy of subsequent tumor size measurement.

[0031] Furthermore, the control panel is also used to compare the pressure data at the current time with the pressure data before the interval time. If the pressure data at the current time is less than or equal to the pressure data before the interval time, a maintenance instruction is sent to the extension mechanism and the tensioning mechanism; if the pressure data at the current time is greater than the pressure data before the interval time, the pressure difference before and after the current interval time is calculated, and the pressure difference is compared with the set second standard value. If the pressure difference is greater than the second standard value, a recording instruction is sent to the control panel, and a pause instruction is sent to the electric push rod. If the pressure difference is less than the second standard value, a verification pass instruction is sent to the control panel.

[0032] Beneficial effect: By comparing the pressure data before and after the interval time, it is determined whether the test rope is in contact with the external tumor tissue or surrounding tissue during the test, so as to reduce the damage that may be caused by the test rope's continuous contact with the tumor or surrounding tissue.

[0033] Furthermore, when the pressure difference is greater than a second standard value, the control panel is used to send a slow extension instruction to the electric push rod based on the recorded tumor height measurement instruction, and the control panel sends a pause instruction to the extension mechanism, and the control panel sends a slow rotation instruction to the tensioning mechanism until the pressure difference after the current time is less than the pressure difference at the current time, and the control panel marks the height of the tumor based on the extension distance of the electric push rod.

[0034] Beneficial effect: Through the change of pressure difference, it is determined that the electric push rod is continuously extended, and the tensioning mechanism keeps the test rope in a taut state during the replay of the test rope, so as to determine the tumor height according to the corresponding change of the extension height of the electric push rod, thereby improving the subsequent measurement accuracy of the tumor size based on image information.

[0035] Furthermore, the control panel is also electrically connected to a display screen, and the display screen is fixedly connected to the laparoscope body.

[0036] Beneficial effects: Through real-time display on the display screen, the physician can confirm the size of the tumor in the image in real time and adjust the parameters, thereby improving the flexibility of the measurement process and facilitating the physician to determine the size of the tumor in real time.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is an axonometric diagram of an embodiment of the gastrointestinal tumor size measurement device under laparoscope of the present invention;

[0039] Figure 2 It is a front view of an embodiment of the gastrointestinal tumor size measurement device under laparoscope of the present invention;

[0040] Figure 3 A bottom view of an embodiment of a gastrointestinal tumor size measurement device under laparoscope of the present invention;

[0041] Figure 4 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0042] Figure 5 for Figure 3 Schematic diagram of the cross section along the BB direction.

[0043] The figure marks in the drawings of the specification include: 1. laparoscope body; 11. connecting tube; 12. display screen; 2. camera; 21. electric push rod; 3. fixed block; 31. fixed rod; 32. sliding rod; 33. first pressure sensor; 34. sliding cavity; 35. trachea; 36. second pressure sensor; 4. test rope; 40. roller; 41. rotating wheel; 42. LED light. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The following is further described in detail through specific implementation methods:

[0048] Embodiment 1:

[0049] As attached Figures 1 to 5 As shown: a gastrointestinal tumor size measuring device under laparoscope, including a laparoscope body 1, in which a camera 2 for acquiring image information in real time is provided; a grid forming component is provided at one end of the laparoscope body 1 close to the camera 2, and the grid forming component as a whole slides with the laparoscope body 1.

[0050] The grid forming assembly includes a plurality of fixed blocks 3 (the number of the fixed blocks 3 in this embodiment is four) arranged circumferentially with the laparoscope body 1 as the center, a plurality of electric push rods 21 are fixedly connected between the fixed blocks 3 and the laparoscope body 1, and a plurality of scale lines are engraved on the output end of the electric push rods 21; a plurality of extension mechanisms are fixedly connected to the fixed blocks 3, and the extension mechanisms include fixed rods 31, a sliding cavity 34 is opened in the fixed rods 31, a sliding rod 32 is slidably matched in the sliding cavity 34, and a plurality of transparent glass layers (not shown in the figure) are clamped on the sliding rods 32 and the fixed rods 31;

[0051] A test rope 4 is connected between the extension mechanisms on the same horizontal line or the same vertical line. In this embodiment, the number of test ropes 4 is 4 to form a plurality of grid-like grids to facilitate comparison of tumor size. In other embodiments, more test ropes 4 can be added to form narrower grids according to the need for measurement accuracy to improve tumor measurement accuracy. The test rope 4 is provided with a plurality of evenly arranged LED lights 42, and adjacent LED lights 42 are connected by wires. One end of the test rope 4 passes through the fixed rod 31 and the sliding rod 32 in sequence, and the fixed rod 31 and the sliding rod 32 slide with the test rope 4; the sliding cavity 34 is connected to the trachea 35, and the end of the trachea 35 away from the sliding cavity 34 is located in the laparoscope body 1, and the trachea 35 is connected to the electromagnetic valve.

[0052] The extension mechanism is electrically connected to a control panel (not shown in the figure) for controlling the extension mechanism to operate so as to adjust the length of the test rope 4. The control panel is also electrically connected to a display screen 12, and the display screen 12 is fixedly connected to the laparoscope body 1. A tensioning mechanism for straightening the test rope 4 is provided in the laparoscope body 1, and a connecting tube 11 is provided in the laparoscope body 1. The camera 2, the control panel and the air pipe 35 are connected to an external power supply or air pump through the connecting tube 11.

[0053] The tensioning mechanism includes a roller 40 and a plurality of rotating wheels 41, and the test rope 4 rotates in coordination with the roller 40 and the rotating wheels 41; the roller 40 is located inside the laparoscope body 1, and the roller 40 is coaxially connected to a motor, the motor is fixedly connected to the laparoscope body 1 with bolts, and one end of the test rope 4 away from the sliding rod 32 is bonded to one side of the roller 40; the rotating wheels 41 are respectively connected to one end of the sliding rod 32 away from the fixed rod 31, and the rotating wheels 41 rotate in coordination with the sliding rod 32.

[0054] The control panel is used to input and store the LED display distance information corresponding to the extension length of the electric push rod 21; the control panel obtains the scale line data on the current electric push rod 21 based on the image information of the camera, and obtains the corresponding LED display distance information based on the scale line data.

[0055] For example, the corresponding LED display distance information is determined by the extended length of the electric push rod 21 to overcome the actual distance judgment error caused by the angle difference between the LED light 42 observed by the camera 2 and the edge of the tumor. The LED display distance information is used for comparison to improve the accuracy of measuring the tumor size by comparing the LED light 42.

[0056] The specific implementation process is as follows: First, the doctor holds the laparoscope body 1 to push the camera 2 and the grid forming component into the body, and uses the real-time image information collected by the camera 2 on the display screen 12 to display the image information, so that the doctor can confirm the size of the tumor in the image in real time and adjust the parameters to improve the flexibility of the measurement process, so that the doctor can determine the size of the tumor in real time.

[0057] Start the electric push rod 21 to continuously push the test rope 4 on the fixed block 3 close to the tumor in the body, and use the scale line display in the image information to determine the length extension change of the output end of the electric push rod 21, so as to determine the height change of the fixed block 3 from the camera 2, so as to overcome the actual distance judgment error caused by the angle difference between the LED light 42 observed by the camera 2 and the edge of the tumor, and provide a basis for determining the height size of the tumor.

[0058] At the same time, the LED light 42 is used to reduce the dark angles in the body, making it easier to observe the body's conditions and provide a surgical field of view, so that it is easier for doctors to perform measurements and other operations. The crossed test ropes 4 form grids of different sizes, and then the tumor is gridded, which can intuitively display the size of the tumor in the body.

[0059] In the process of adjusting the extension length of the sliding rod 32 based on different tumor sizes, the solenoid valve is adjusted through the control panel to control the opening and closing of the trachea 35 to control the extension and retraction of the sliding rod 32; when the transparent glass layer is used to facilitate the camera 2 to capture image data, the brightness of the LED light 42 on the test rope 4 is controlled to facilitate the determination of the tumor size.

[0060] During the extension of the sliding rod 32, the test rope 4 is kept in a taut state by using the rotating wheel 41 which rotates with the sliding rod 32, so as to facilitate measurement through the test rope 4; during the retraction of the sliding rod 32, the test rope 4 wound on the roller 40 is driven by a motor to be stored, so as to keep the test rope 4 in a taut state.

[0061] The display of the grid-shaped test rope 4 can divide the tumor into grid partitions for display, so that the physician can determine the tumor edge in each grid through the image information, thereby reducing the error of manual measurement. The automatic control through the control panel can reduce manual operation, and the operation is simple.

[0062] Embodiment 2:

[0063] The difference from Example 1 is that a second pressure sensor 36 is fixedly connected to the bottom center of the fixed block 3, and the second pressure sensor 36 is used to measure the contact pressure when the fixed block 3 contacts an external object, and send the contact pressure to the control panel; the control panel is used to compare the contact pressure with the set contact value. If the contact pressure is greater than the contact value, a pause command is sent to the corresponding electric push rod 21, and a height recording command is sent to the control panel; if the contact pressure is less than the contact value, a maintenance command is sent to the corresponding electric push rod 21.

[0064] For example, by judging the contact pressure, it is determined whether the fixed block 3 is in contact with the surrounding tissue during the extension process of the fixed block 3, thereby reducing the excessive extension of the electric push rod 21. At the same time, the extension length of each electric push rod 21 is recorded. When judging the size of the tumor based on the distance information displayed by the LED light 42, the plane distance information is introduced into the height distance for correction, so as to more accurately judge the size of the tumor.

[0065] Embodiment 3:

[0066] The difference from Example 2 is that a plurality of first pressure sensors 33 are provided on the outside of the rotating wheel 41, and the first pressure sensors 33 are located between the test rope 4 and the rotating wheel 41; the first pressure sensor 33 is used to measure the pressure data of the test rope 4 exerting pressure on the rotating wheel 41, and send the pressure data to the control panel, and the control panel is used to compare the pressure data with the set first standard value. If the pressure data is greater than the first standard value, a maintenance instruction is sent to the extension mechanism and the tensioning mechanism; if the pressure data is less than the first standard value, a work instruction is sent to the tensioning mechanism, and a pause instruction is sent to the extension mechanism.

[0067] For example, when the test rope 4 is taut, it will exert pressure on the angled wheel 41. The pressure change of the pulling rope can be used to determine whether the current test rope 4 is in a taut state. By maintaining the taut state, the LED light 42 on the test rope 4 can mark the tumor more accurately, thereby improving the accuracy of subsequent tumor size measurements.

[0068] The control panel is also used to compare the pressure data at the current time with the pressure data before the interval time. If the pressure data at the current time is less than or equal to the pressure data before the interval time, a maintenance instruction is sent to the extension mechanism and the tensioning mechanism. The extension mechanism sends a closing instruction to the corresponding solenoid valve based on the maintenance instruction, and the tensioning mechanism sends a closing instruction to the motor based on the maintenance instruction. If the pressure data at the current time is greater than the pressure data before the interval time, the pressure difference before and after the current interval time is calculated, and the pressure difference is compared with the set second standard value. If the pressure difference is greater than the second standard value, a recording instruction is sent to the control panel, and a pause instruction is sent to the electric push rod 21. If the pressure difference is less than the second standard value, a verification pass instruction is sent to the control panel.

[0069] For example, when the test rope 4 at the center comes into contact with the protruding tumor tissue, the test ropes 4 on both sides will be tightened more, and the pressure data before and after the interval time will be compared to determine whether the test rope 4 comes into contact with the external tumor tissue or surrounding tissue during the test, so as to maintain the current action unchanged, provide judgment time for the doctor's subsequent control, and reduce the damage that may be caused by the test rope 4 continuously contacting the tumor or surrounding tissue.

[0070] The control panel is also used to send a slow extension instruction to the electric push rod 21 based on the recorded tumor height measurement instruction when the pressure difference is greater than the second standard value, and the control panel sends a pause instruction to the extension mechanism, and the control panel sends a slow rotation instruction to the tensioning mechanism until the pressure difference after the current time is less than the pressure difference at the current time. The control panel marks the height of the tumor based on the extension distance of the electric push rod 21.

[0071] For example, in the process of releasing the test rope 4, the test rope 4 is wrapped around the tumor, so that the surrounding fixed blocks 3 are in contact with the surrounding tissues, providing basic support to ensure stability during measurement, and through the change in pressure difference, it is determined that the electric push rod 21 is continuously extended. During the process of replaying the test rope 4, the tensioning mechanism keeps the test rope 4 in a taut state, so as to determine the tumor height according to the corresponding change in the extension height of the electric push rod 21, thereby improving the subsequent measurement accuracy of the tumor size based on image information.

[0072] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A gastrointestinal tumor size measurement device under laparoscope, comprising a laparoscope body (1), wherein a camera (2) for acquiring image information in real time is arranged inside the laparoscope body (1); characterized in that: A grid forming component is provided at one end of the laparoscope body (1) close to the camera (2), and the grid forming component is slidably matched with the laparoscope body (1); The grid forming component comprises a plurality of fixed blocks (3) arranged circumferentially with the laparoscope body (1) as the center, a plurality of extension mechanisms being fixedly connected to the fixed blocks (3), a test rope (4) being connected between the extension mechanisms on the same horizontal line or the same vertical line, a plurality of evenly arranged LED lights (42) being provided on the test rope (4), and adjacent LED lights (42) being electrically connected; The extension mechanism is electrically connected to a control panel for controlling the extension mechanism to operate so as to adjust the length of the test rope (4); a tensioning mechanism for straightening the test rope (4) is provided in the laparoscope body (1); and the control panel is electrically connected to the camera (2) and the tensioning mechanism.

2. The laparoscopic gastrointestinal tumor size measurement device according to claim 1, characterized in that: A plurality of electric push rods (21) are fixedly connected between the fixed block (3) and the laparoscope body (1), and the electric push rods (21) are electrically connected to the control panel.

3. The gastrointestinal tumor size measurement device under laparoscope according to claim 2, characterized in that: The extension mechanism comprises a fixed rod (31), a sliding cavity (34) is formed in the fixed rod (31), a sliding rod (32) is slidably matched in the sliding cavity (34), and a plurality of transparent glass layers are fixedly connected to the sliding rod (32) and the fixed rod (31); One end of the test rope (4) passes through the fixed rod (31) and the sliding rod (32) in sequence, and the fixed rod (31) and the sliding rod (32) are slidably matched with the test rope (4); the sliding cavity (34) is connected to an air pipe (35), one end of the air pipe (35) away from the sliding cavity (34) is located in the laparoscope body (1), and the air pipe (35) is connected to an electromagnetic valve, which is electrically connected to the control panel; The tensioning mechanism comprises a roller (40) and a plurality of rotating wheels (41), and the test rope (4) is rotatably matched with the roller (40) and the rotating wheels (41); the roller (40) is located inside the laparoscope body (1), and the roller (40) is coaxially connected to a motor, the motor is fixedly connected to the laparoscope body (1), and one end of the test rope (4) away from the sliding rod (32) is fixedly connected to one side of the roller (40); The rotating wheels (41) are respectively connected to one end of the sliding rod (32) away from the fixed rod (31), and the rotating wheels (41) and the sliding rod (32) are rotationally matched.

4. The gastrointestinal tumor size measurement device under laparoscope according to claim 3, characterized in that: A plurality of scale lines are engraved on the output end of the electric push rod (21).

5. The gastrointestinal tumor size measurement device under laparoscopy according to claim 4, characterized in that: The control panel is used to input and store LED display distance information corresponding to the extension length of the electric push rod (21); the control panel is used to obtain scale line data on the current electric push rod (21) based on image information, and obtain corresponding LED display distance information based on the scale line data.

6. The gastrointestinal tumor size measurement device under laparoscope according to claim 5, characterized in that: A second pressure sensor (36) is fixedly connected to the center of the bottom of each fixed block (3), and the second pressure sensor (36) is used to measure the contact pressure when the fixed block (3) contacts an external object, and transmit the contact pressure to the control panel; The control panel is used to compare the contact pressure with the set contact value. If the contact pressure is greater than the contact value, a pause instruction is sent to the corresponding electric push rod (21), and a height recording instruction is sent to the control panel; if the contact pressure is less than the contact value, a maintenance instruction is sent to the corresponding electric push rod (21).

7. The gastrointestinal tumor size measurement device under laparoscopy according to claim 6, characterized in that: A plurality of first pressure sensors (33) are arranged on the outside of the rotating wheel (41), and the first pressure sensors (33) are located between the test rope (4) and the rotating wheel (41); The first pressure sensor (33) is used to test the pressure data on the rope (4) pressure wheel (41), and send the pressure data to the control panel. The control panel is used to compare the pressure data with a set first standard value. If the pressure data is greater than the first standard value, a maintenance instruction is sent to the extension mechanism and the tensioning mechanism; if the pressure data is less than the first standard value, a working instruction is sent to the tensioning mechanism, and a pause instruction is sent to the extension mechanism.

8. The gastrointestinal tumor size measurement device under laparoscope according to claim 7, characterized in that: The control panel is also used to compare the pressure data at the current time with the pressure data before the interval time. If the pressure data at the current time is less than or equal to the pressure data before the interval time, a maintenance instruction is sent to the extension mechanism and the tensioning mechanism; if the pressure data at the current time is greater than the pressure data before the interval time, the pressure difference before and after the current interval time is calculated, and the pressure difference is compared with a set second standard value. If the pressure difference is greater than the second standard value, a recording instruction is sent to the control panel, and a pause instruction is sent to the electric push rod (21); if the pressure difference is less than the second standard value, a verification pass instruction is sent to the control panel.

9. The gastrointestinal tumor size measurement device under laparoscope according to claim 8, characterized in that: The control panel is also used to send a slow extension instruction to the electric push rod (21) based on the recorded tumor height measurement instruction when the pressure difference is greater than the second standard value, and the control panel sends a pause instruction to the extension mechanism, and the control panel sends a slow rotation instruction to the tensioning mechanism until the pressure difference after the current time is less than the pressure difference at the current time. The control panel marks the height of the tumor based on the extension distance of the electric push rod (21).

10. The gastrointestinal tumor size measurement device under laparoscopy according to claim 9, characterized in that: The control panel is also electrically connected to a display screen (12), and the display screen (12) is fixedly connected to the laparoscope body (1).

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