Gastrointestinal lifting device for laparoscope in general surgery department

Abstract

The invention relates to the technical field of laparoscopic surgeries, in particular to an intestine and stomach lifting device for a laparoscope in the general surgery department, which comprises a supporting rod, a mounting plate is rotatably matched with the top of the supporting rod, a sliding block is slidably matched with the bottom of the mounting plate, a telescopic connecting rod is rotatably matched in the sliding block, and a clamping disc is rotatably matched with one side, far away from the sliding block, of the connecting rod; the sides, away from the connecting rods, of the clamping discs are rotationally matched with arc-shaped blocks, the sides, away from the clamping discs, of the arc-shaped blocks are fixedly connected with a plurality of suction cups, the suction cups communicate with pneumatic parts used for sucking air through air pipes, and the pneumatic parts are located at the top of the mounting plate. A clamping mechanism used for adjusting the attaching direction of the arc-shaped block and the stomach and intestine is arranged between the arc-shaped block and the clamping disc. The gastrointestinal traction device is used for guaranteeing the adsorption stability in the gastrointestinal lifting process, and meanwhile the traction direction in the lifting process is convenient to adjust.

Description

Technical Field

[0001] This invention relates to the field of laparoscopic surgery technology, specifically to a gastrointestinal traction device for general surgical laparoscopy. Background Technology

[0002] Compared to traditional open surgery, laparoscopic surgery uses several tiny incisions to create an operating channel and completes the surgical procedure with the help of a high-definition camera system and long-handled instruments. It has core advantages such as minimal trauma, rapid postoperative recovery, less pain, and significant cosmetic results. Laparoscopic surgery has become the mainstream surgical method for the treatment of gastrointestinal diseases due to its minimally invasive advantages.

[0003] In gastrointestinal surgery, accurately lifting and stabilizing the target organ is a crucial prerequisite for completing lesion resection, lymph node dissection, and digestive tract reconstruction. Existing devices typically use negative pressure suction to fix the gastrointestinal mucosa, which can reduce direct mechanical damage. However, the moist and continuously moving surface of the gastrointestinal wall makes it easy for tiny air gaps to form between the suction cup and the tissue, or for relative displacement to occur, resulting in poor stability. Secondly, the differences in the anatomical structure of different gastrointestinal parts determine the subsequent orientation and angle of gastrointestinal tract lifting. Although existing devices can maintain stability during the suction process, they are limited by the fixed support rods, which restricts the use of the device for adjusting the traction direction during surgery.

[0004] Therefore, the present invention provides a convenient gastrointestinal lifting device to ensure the adsorption stability during the gastrointestinal lifting process, while facilitating the adjustment of the traction orientation during the lifting process. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a gastrointestinal traction device for general surgical laparoscopy, which ensures the adsorption stability during the gastrointestinal traction process and facilitates adjustment of the traction orientation during the traction process.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a gastrointestinal lifting device for general surgical laparoscopy, comprising a support rod, a mounting plate rotatably fitted at the top of the support rod, a slider slidably fitted at the bottom of the mounting plate, a retractable connecting rod rotatably fitted inside the slider, and a clamping disc rotatably fitted on the side of the connecting rod away from the slider.

[0007] Several arc-shaped blocks are rotatably fitted on the side of the clamping plate away from the connecting rod. Several suction cups are fixedly connected on the side of the arc-shaped blocks away from the clamping plate. The suction cups are connected to a pneumatic component for sucking air through an air pipe. The pneumatic component is located on the top of the mounting plate.

[0008] A clamping mechanism is provided between the arc-shaped block and the clamping plate to adjust the alignment of the arc-shaped block with the gastrointestinal tract.

[0009] Furthermore, a first clamping block is threadedly connected to the top of the support rod, and the first clamping block abuts against the mounting plate;

[0010] The slider is fixedly connected to two sides of a rotating shaft, and a second clamping block is rotatably fitted on the rotating shaft. The two ends of the rotating shaft pass through the mounting plate, and the mounting plate has mating grooves on both sides near the rotating shaft. The rotating shaft and the mating grooves are slidably fitted. The second clamping block is symmetrically arranged with the mounting plate as the center, and the second clamping block abuts against the mounting plate.

[0011] Furthermore, the arc-shaped block includes several bonding blocks, adjacent bonding blocks are rotatably connected, and a deformation layer is fixedly connected to the side of the bonding block near the clamping plate, and the suction cup is located on the side of the deformation layer away from the bonding block.

[0012] Each adjacent bonding block is fixedly connected to a filling bladder. Each filling bladder is connected to an air pump via an air tube, and the filling bladder is connected to a first solenoid valve. The first solenoid valve is electrically connected to a control panel. When the filling bladder is fully inflated, the pushing distance of the filling bladder on the side away from the clamping plate is less than the pushing distance of the filling bladder on the side closer to the clamping plate.

[0013] Furthermore, an annular groove is formed on the outer wall of the output shaft of the connecting rod. The annular groove is located at one end of the connecting rod near the clamping plate. A stop block is slidably fitted inside the annular groove. An expansion bladder is fixedly connected to the side of the stop block away from the connecting rod. The expansion bladder is in clearance fit with the annular groove. The expansion bladder is connected to the pneumatic component through an air pipe, and a second solenoid valve is connected to the expansion bladder. The second solenoid valve is electrically connected to the control panel and is located between the expansion bladder and the pneumatic component.

[0014] Furthermore, an electric actuator is connected between the clamping plate and the bonding block. The electric actuator is electrically connected to the control panel. The fixed end of the electric actuator is hinged to the clamping plate, and the output end of the electric actuator is hinged to the bonding block.

[0015] Furthermore, the clamping mechanism includes several pressure sensors located on the deformation layer. The pressure sensors are used to detect real-time pressure data when the deformation layer comes into contact with the outside world. The pressure sensors are arranged in a ring around the suction cup. The suction cup is connected to a third solenoid valve, which is located between the suction cup and the pneumatic component.

[0016] The pressure sensor is electrically connected to the control panel. The control panel is used to input and store the position information of each pressure sensor, and to mark the real-time pressure data, the first solenoid valve and the third solenoid valve based on the position information.

[0017] The control panel is also used to compare real-time pressure data with a set standard value during the process of the arc-shaped block conforming to the gastrointestinal tissue. If the real-time pressure data is greater than or equal to the standard value, a closing command is sent to the corresponding first solenoid valve based on the position information, and a starting command is sent to the corresponding third solenoid valve based on the position information, as well as a negative pressure switching command is sent to the pneumatic component. If the real-time pressure data is less than the standard value, a standby command is sent to the corresponding first solenoid valve based on the position information, and a standby command is sent to the corresponding third solenoid valve based on the position information, as well as a maintenance command is sent to the pneumatic component.

[0018] Furthermore, the control panel is also used to record the real-time pressure difference between adjacent locations during the continuous contact between the deformed layer and the surface of the gastrointestinal tissue;

[0019] The real-time pressure difference at the current time is compared with the historical pressure difference before the current time. If the real-time pressure difference is greater than the historical pressure difference, a start command is sent to the corresponding third solenoid valve based on the adjacent position information. If the real-time pressure difference is less than or equal to the historical pressure difference, a standby command is sent to the third solenoid valve.

[0020] Furthermore, the control panel is also used to draw a fluctuation graph based on the real-time pressure difference during the current interval period, obtain regular fluctuation changes, obtain the interval time of the peak and trough values ​​of the fluctuation graph based on the fluctuation changes, and send a start command to the corresponding third solenoid valve based on the interval time.

[0021] Furthermore, the bonding block has through tubes that are connected to suction cups. The end of the through tube away from the suction cup is connected to a plug. The plug fits the bonding block perfectly, and the end of the through tube away from the suction cup is connected to the outside.

[0022] Furthermore, a first plate is fixedly connected to the bottom of the support rod, and a screw is fixedly connected to the end of the first plate away from the support rod. A second plate is slidably fitted on the screw, and a nut is rotatably fitted on the screw. The nut is located on the side of the second plate away from the first plate.

[0023] The above approach has the following beneficial effects:

[0024] 1. In this design, the mounting plate rotates around the support rod to adjust the orientation of the mounting plate relative to the hospital bed. Then, the connecting rod moves and rotates on the mounting plate to adjust the orientation of the arc-shaped block on the connecting rod relative to the hospital bed. This allows for adaptive adjustments based on the surgical field of view and lifting direction, meeting the actual needs of the surgery.

[0025] 2. In this design, during the clamping process of gastrointestinal tissue, an arc-shaped block is used to contact the circular or elliptical gastrointestinal tissue. This facilitates the adhesion of the suction cups on the surface of the arc-shaped block to the gastrointestinal tissue, ensuring stability during clamping. Simultaneously, the arc-shaped block forms a near-circular clamping groove, maintaining the gripping and fixing of the gastrointestinal tissue and reducing the risk of detachment due to gastrointestinal peristalsis or other reasons. This also facilitates subsequent re-adhesion and fixation of the gastrointestinal tissue by the suction cups.

[0026] 3. In this solution, the pressure sensor on the deformation layer comes into contact with the surface of the gastrointestinal tissue, causing the real-time pressure data detected by the pressure sensor to change. After the deformation layer comes into contact with the surface of the gastrointestinal tissue, the expansion of the filling bladder is stopped to maintain the shape of the adhesive block and thus maintain the adsorption and fixation of the gastrointestinal tissue.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] Figure 1 This is an isometric view of an embodiment of the gastrointestinal lifting device for general surgical laparoscopy of the present invention;

[0029] Figure 2 This is a front view of an embodiment of the gastrointestinal lifting device for general surgical laparoscopy of the present invention;

[0030] Figure 3 for Figure 2 A cross-sectional schematic diagram of AA in the middle;

[0031] Figure 4 for Figure 1 A magnified schematic diagram of part B in the middle;

[0032] Figure 5 for Figure 3 A magnified schematic diagram of part C in the middle;

[0033] Figure 6 for Figure 3 A magnified schematic diagram of part D in the middle;

[0034] Figure 7 for Figure 3 A magnified schematic diagram of part E in the middle.

[0035] The reference numerals in the accompanying drawings of the instruction manual include: 1. Support rod; 11. First plate; 12. Second plate; 13. Screw; 14. Nut; 15. First clamping block; 2. Mounting plate; 21. Slider; 22. Rotating shaft; 23. Second clamping block; 3. Connecting rod; 4. Clamping disc; 41. Abutment block; 42. Inflation bladder; 43. Electric actuator; 5. Arc-shaped block; 51. Adhesive block; 52. Filling bladder; 53. Deformation layer; 54. Air tube; 6. Suction cup. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] The following detailed description illustrates the specific implementation method:

[0040] As attached Figures 1 to 7 As shown: A gastrointestinal lifting device for general surgical laparoscopy includes a support rod 1, a mounting plate 2 rotatably fitted at the top of the support rod 1, a first plate 11 fixedly connected to the bottom of the support rod 1, a screw 13 fixedly connected to the end of the first plate 11 away from the support rod 1, a second plate 12 slidably fitted on the screw 13, and a nut 14 rotatably fitted on the screw 13, the nut 14 being located on the side of the second plate 12 away from the first plate 11.

[0041] The bottom of the mounting plate 2 is slidably fitted with a slider 21, and a retractable connecting rod 3 is rotatably fitted inside the slider 21. In this embodiment, the connecting rod 3 is a hydraulic rod, and the connecting rod 3 is connected to a hydraulic pump through a pipe. The hydraulic pump is located above the mounting plate 2 (not shown in the figure). A clamping plate 4 is rotatably fitted on the side of the connecting rod 3 away from the slider 21.

[0042] The top of the support rod 1 is threaded with a first clamping block 15, which abuts against the mounting plate 2. The two sides of the slider 21 are fixedly connected with a rotating shaft 22, and a second clamping block 23 is rotatably fitted on the rotating shaft 22. The two ends of the rotating shaft 22 pass through the mounting plate 2, and the mounting plate 2 has mating grooves on both sides near the rotating shaft 22. The rotating shaft 22 slides with the mating grooves. The second clamping block 23 is symmetrically arranged with the mounting plate 2 as the center, and abuts against the mounting plate 2.

[0043] A plurality of arc-shaped blocks 5 are rotatably fitted on the side of the clamping disc 4 away from the connecting rod 3. A plurality of suction cups 6 are fixedly connected on the side of the arc-shaped blocks 5 away from the clamping disc 4. The suction cups 6 are connected to a pneumatic component for sucking air through an air pipe 54 (not shown in the figure). In this embodiment, the pneumatic component is an air pump, and the pneumatic component is located on the top of the mounting plate 2. The arc-shaped block 5 includes several bonding blocks 51, which are rotatably connected to each other. A deformation layer 53 is fixedly connected to the side of the bonding block 51 near the clamping plate 4. The suction cup 6 is located on the side of the deformation layer 53 away from the bonding block 51. A filling bladder 52 is fixedly connected to each adjacent bonding block 51. The filling bladder 52 is connected to an air pump through an air pipe 54, and the filling bladder 52 is connected to a first solenoid valve (not shown in the figure). In this embodiment, the first solenoid valve is normally open. The first solenoid valve is electrically connected to a control panel. When the filling bladder 52 is fully inflated, the pushing distance of the filling bladder 52 away from the clamping plate 4 is less than the pushing distance of the filling bladder 52 near the clamping plate 4.

[0044] A clamping mechanism is provided between the arc-shaped block 5 and the clamping plate 4 to adjust the position of the arc-shaped block 5 in contact with the gastrointestinal tract. The clamping mechanism includes several pressure sensors located on the deformation layer 53. The pressure sensors are used to detect real-time pressure data when the deformation layer 53 is in contact with the outside. The pressure sensors are arranged in a ring around the suction cup 6. The suction cup 6 is connected to a third solenoid valve. In this embodiment, the third solenoid valve is normally closed. The third solenoid valve is located between the suction cup 6 and the pneumatic component.

[0045] The pressure sensors are electrically connected to the control panel. The control panel is used to input and store the position information of each pressure sensor, and to mark the real-time pressure data, the first solenoid valve, and the third solenoid valve based on the position information. The control panel is also used to compare the real-time pressure data with the set standard value during the process of the arc-shaped block 5 conforming to the gastrointestinal tissue. If the real-time pressure data is greater than or equal to the standard value, a closing command is sent to the corresponding first solenoid valve based on the position information, and a starting command is sent to the corresponding third solenoid valve based on the position information, as well as a negative pressure switching command is sent to the pneumatic component. If the real-time pressure data is less than the standard value, a standby command is sent to the corresponding first solenoid valve based on the position information, and a standby command is sent to the corresponding third solenoid valve based on the position information, as well as a maintenance command is sent to the pneumatic component.

[0046] The specific implementation process is as follows:

[0047] First, during the installation of the support rod 1, the first plate 11 and the second plate 12 are placed on the upper and lower sides of the edge of the bed, so that the nut 14 rotates on the screw 13 and pushes and clamps the second plate 12 to adjust the clamping distance between the first plate 11 and the second plate 12, so that the first plate 11 and the second plate 12 can firmly clamp the edge of the bed.

[0048] During the process of adjusting the orientation of the arc plate, the first clamping block 15 is rotated on the support rod 1, so that the first clamping block 15 is fixed against the mounting plate 2, or the first clamping block 15 is released from fixing the mounting plate 2, so as to adjust the position and orientation of the clamping plate 4 on the mounting plate 2.

[0049] The sliding position of slider 21 on mounting plate 2 is then adjusted to change the distance between connecting rod 3 and the edge of the bed, facilitating contact between clamping disc 4 and the surgical area. Simultaneously, the connecting rod 3 rotates around shaft 22 to allow the arc-shaped block 5 to be aligned laterally or vertically with the surgical area, reducing obstruction of the surgeon's field of vision and enabling the arc-shaped block 5 to be clamped from different lifting angles around the surgical site, thus improving the device's versatility. After adjusting the position of arc-shaped block 5, the second clamping block 23 on shaft 22 is rotated towards the center of mounting plate 2, clamping the mounting plate 2 and maintaining the position of connecting rod 3 on mounting plate 2.

[0050] During the inflation of the filling bladder 52, the closing status of the first solenoid valve is controlled by the control panel, so that each filling bladder 52 is inflated through the air tube 54. The inflation of the filling bladder 52 widens the gap between adjacent bonding blocks 51, causing the bonding blocks 51 to rotate the deformation layer 53 to one side of the clamping plate 4. This allows the bonding blocks 51 to push the deformation layer 53 to form an arc-shaped clamping surface that fits the shape of the gastrointestinal surface, ensuring that the subsequent suction cups 6 fit the surface of the gastrointestinal tissue. Even after one suction cup 6 falls off, the other suction cups 6 and the arc-shaped deformation layer 53 can still support or adhere to the gastrointestinal tract, thus ensuring stability during the clamping process.

[0051] During the bending process of the arc-shaped block 5, the continuous ventilation of the filling bladder 52 is used for control. As the filling bladder 52 pushes the bonding block 51 and the deformation layer 53 towards the surface of the gastrointestinal tissue, the pressure sensor on the deformation layer 53 comes into contact with the surface of the gastrointestinal tissue, causing a change in the real-time pressure data detected by the pressure sensor. After the deformation layer 53 has made contact with the surface of the gastrointestinal tissue, the expansion of the filling bladder 52 is stopped to maintain the shape of the bonding block 51. This allows the arc-shaped block 5 to contact the circular or elliptical gastrointestinal tissue, facilitating the adhesion of the suction cup 6 on the surface of the arc-shaped block 5 to the gastrointestinal tissue and ensuring stability during the clamping process.

[0052] Simultaneously, by controlling the activation of the third solenoid valve corresponding to suction cup 6 and switching the operation of the pneumatic components, the surface of the gastrointestinal tissue is adsorbed during the subsequent adsorption process, enabling the clamping mechanism to actively hold the intestine. During the subsequent lifting process, the retractable connecting rod 3 drives the clamping plate 4 and the arc-shaped block 5 to move as a whole, ensuring that the arc-shaped block 5 moves in the lifting direction.

[0053] In another embodiment, an annular groove is formed on the outer wall of the output shaft of the connecting rod 3. The annular groove is located at one end of the connecting rod 3 near the clamping plate 4. A stop block 41 is slidably fitted inside the annular groove. An expansion bladder 42 is fixedly connected to the side of the stop block 41 away from the connecting rod 3. The expansion bladder 42 is in clearance fit with the annular groove. The expansion bladder 42 is connected to the pneumatic component through an air pipe 54. The expansion bladder 42 is also connected to a second solenoid valve. In this embodiment, the normal state of the second solenoid valve is normally closed. The second solenoid valve is electrically connected to the control panel. The second solenoid valve is located between the expansion bladder 42 and the pneumatic component.

[0054] The specific implementation process is as follows: Since the stomach and intestines have a complex tortuous shape, the arc-shaped block 5 on the clamping plate 4 rotates around the connecting rod 3 to adjust the clamping direction of the arc-shaped block 5 to clamp perpendicularly to both sides of the stomach and intestine tissues. This reduces the misalignment and pulling on the stomach and intestine tissues caused by the clamping angle during the traditional clamping process, thereby ensuring that the force applied by the arc-shaped block 5 to the stomach and intestine tissues is consistent with the lifting direction.

[0055] During the process where the abutment block 41 does not clamp and fix the connecting rod 3, the clamping disc 4 is manually rotated to match the direction of the arc-shaped block 5 with the gastrointestinal tissue. After the adjustment is completed, the start-up status of the second solenoid valve is controlled through the control panel. The pneumatic component continuously supplies air to the expansion bladder 42 through the air pipe 54, so that the expansion bladder 42 pushes the abutment block 41 to keep the connecting rod 3 clamped and fixed, and keeps the abutment block 41 clamping and fixing the connecting rod 3 to maintain the position of the arc-shaped block 5.

[0056] In another embodiment, an electric push rod 43 is connected between the clamping plate 4 and the bonding block 51. The electric push rod 43 is electrically connected to the control panel. The fixed end of the electric push rod 43 is hinged to the clamping plate 4, and the output end of the electric push rod 43 is hinged to the bonding block 51.

[0057] The specific implementation process is as follows: The extension of the electric push rod 43 is controlled by the control panel to adjust the basic orientation of the rotation position between the arc block 5 and the clamping plate 4, so that the bonding block 51 near the clamping plate 4 matches the width and length of the intestinal tissue, so as to ensure the adaptability of the deformation layer 53 to the gastrointestinal tissue during the subsequent expansion of the filling bag 52, so that the subsequent deformation layer 53 can be bonded to the surface of the gastrointestinal tissue.

[0058] In other embodiments, the control panel is also used to record the real-time pressure difference between adjacent positions during the continuous contact between the deformable layer 53 and the surface of the gastrointestinal tissue; compare the real-time pressure difference at the current time with the historical pressure difference before the current time; if the real-time pressure difference is greater than the historical pressure difference, send a start command to the corresponding third solenoid valve based on the adjacent position information; if the real-time pressure difference is less than or equal to the historical pressure difference, send a standby command to the third solenoid valve.

[0059] For example, during the contact between the deformable layer 53 and the surface of the gastrointestinal tissue, the weight of the gastrointestinal tissue itself will cause a pressure difference in the real-time pressure data on the upper and lower sides. When the gastrointestinal tissue undergoes peristalsis, the pressure difference between adjacent pressure sensors may further increase. By comparing the pressure difference before and after the current time, the suction cup 6 can be controlled in a timely manner to ensure the continuous adsorption of the suction cup 6 on the gastrointestinal tissue.

[0060] In other embodiments, the control panel is also used to plot a fluctuation graph based on the real-time pressure difference during the current time interval, obtain regular fluctuation changes, obtain the interval between the peak and trough values ​​of the fluctuation graph based on the fluctuation changes, and send a start command to the corresponding third solenoid valve based on the interval.

[0061] For example, during the normal peristalsis of the human gastrointestinal tract, the fluctuation pattern is regular. By controlling the interval of regular changes in advance, the timely and stable adsorption of the suction cup 6 can be ensured, making it easier to adsorb and hold the gastrointestinal tissue.

[0062] In another embodiment, the bonding block 51 has a through tube (not shown in the figure), which is connected to the suction cup 6. The end of the through tube away from the suction cup 6 is connected to a plug, which fits the bonding block 51 tightly. The end of the through tube away from the suction cup 6 is connected to the outside.

[0063] The specific implementation process is as follows: The suction cup 6 is connected through a through tube so that during or after use, the plug can be removed to connect the through tube to the outside world, thereby removing the negative pressure adsorption state of the suction cup 6 and quickly removing the adsorption and fixation of the suction cup 6 on the gastrointestinal tissue, which facilitates the operation during the operation.

[0064] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A gastrointestinal lifting device for general surgical laparoscopy, comprising a support rod (1), wherein a mounting plate (2) is rotatably fitted to the top of the support rod (1), characterized in that, The bottom of the mounting plate (2) is slidably fitted with a slider (21), and a telescopic connecting rod (3) is rotatably fitted inside the slider (21). A clamping plate (4) is rotatably fitted on the side of the connecting rod (3) away from the slider (21). The clamping plate (4) is rotatably fitted with several arc-shaped blocks (5) on the side away from the connecting rod (3). Several suction cups (6) are fixedly connected to the side of the arc-shaped blocks (5) away from the clamping plate (4). The suction cups (6) are connected to a pneumatic component for sucking air through an air pipe (54). The pneumatic component is located on the top of the mounting plate (2). A clamping mechanism is provided between the arc-shaped block (5) and the clamping plate (4) for adjusting the position of the arc-shaped block (5) in relation to the gastrointestinal tract.

2. The gastrointestinal traction device for general surgical laparoscopy according to claim 1, characterized in that, The top of the support rod (1) is threaded with a first clamping block (15), which abuts against the mounting plate (2); The slider (21) is fixedly connected to the two sides of the rotating shaft (22). The rotating shaft (22) is rotatably fitted with the second clamping block (23). The two ends of the rotating shaft (22) pass through the mounting plate (2) respectively. The mounting plate (2) has a mating groove on both sides near the rotating shaft (22). The rotating shaft (22) slides with the mating groove. The second clamping block (23) is symmetrically arranged with the mounting plate (2) as the center. The second clamping block (23) abuts against the mounting plate (2).

3. The gastrointestinal traction device for general surgical laparoscopy according to claim 2, characterized in that, The arc-shaped block (5) includes several bonding blocks (51), and the adjacent bonding blocks (51) are rotated and fitted together. The side of the bonding block (51) near the clamping plate (4) is fixedly connected with a deformation layer (53), and the suction cup (6) is located on the side of the deformation layer (53) away from the bonding block (51). Each adjacent bonding block (51) is fixedly connected to a filling bladder (52). Each filling bladder (52) is connected to an air pump through an air tube (54). The filling bladder (52) is also connected to a first solenoid valve. The first solenoid valve is electrically connected to a control panel. When the filling bladder (52) is fully inflated, the pushing distance of the filling bladder (52) away from the clamping plate (4) is less than the pushing distance of the filling bladder (52) close to the clamping plate (4).

4. The gastrointestinal traction device for general surgical laparoscopy according to claim 3, characterized in that, The outer wall of the output shaft of the connecting rod (3) has an annular groove. The annular groove is located at one end of the connecting rod (3) near the clamping plate (4). A stop block (41) is slidably fitted in the annular groove. An expansion bladder (42) is fixedly connected to the side of the stop block (41) away from the connecting rod (3). The expansion bladder (42) is in clearance fit with the annular groove. The expansion bladder (42) is connected to the pneumatic component through the air pipe (54). The expansion bladder (42) is also connected to a second solenoid valve. The second solenoid valve is electrically connected to the control panel. The second solenoid valve is located between the expansion bladder (42) and the pneumatic component.

5. The gastrointestinal traction device for general surgical laparoscopy according to claim 4, characterized in that, An electric push rod (43) is connected between the clamping plate (4) and the bonding block (51). The electric push rod (43) is electrically connected to the control panel. The fixed end of the electric push rod (43) is hinged to the clamping plate (4), and the output end of the electric push rod (43) is hinged to the bonding block (51).

6. The gastrointestinal traction device for general surgical laparoscopy according to claim 5, characterized in that, The clamping mechanism includes several pressure sensors located on the deformation layer (53). The pressure sensors are used to detect real-time pressure data when the deformation layer (53) comes into contact with the outside world. The pressure sensors are arranged in a ring around the suction cup (6). The suction cup (6) is connected to a third solenoid valve, which is located between the suction cup (6) and the pneumatic component. The pressure sensor is electrically connected to the control panel. The control panel is used to input and store the position information of each pressure sensor, and to mark the real-time pressure data, the first solenoid valve and the third solenoid valve based on the position information. The control panel is also used to compare real-time pressure data with the set standard value during the process of the arc block (5) fitting the gastrointestinal tissue. If the real-time pressure data is greater than or equal to the standard value, a closing command is sent to the corresponding first solenoid valve based on the position information, and a starting command is sent to the corresponding third solenoid valve based on the position information and a negative pressure switching command is sent to the pneumatic component. If the real-time pressure data is less than the standard value, a standby command is sent to the corresponding first solenoid valve based on the position information, and a standby command is sent to the corresponding third solenoid valve based on the position information and a maintenance command is sent to the pneumatic component.

7. The gastrointestinal traction device for general surgical laparoscopy according to claim 6, characterized in that, The control panel is also used to record the real-time pressure difference between adjacent locations during the continuous contact between the deformable layer (53) and the surface of the gastrointestinal tissue; The real-time pressure difference at the current time is compared with the historical pressure difference before the current time. If the real-time pressure difference is greater than the historical pressure difference, a start command is sent to the corresponding third solenoid valve based on the adjacent position information. If the real-time pressure difference is less than or equal to the historical pressure difference, a standby command is sent to the third solenoid valve.

8. The gastrointestinal traction device for general surgical laparoscopy according to claim 7, characterized in that, The control panel is also used to plot a fluctuation graph based on the real-time pressure difference during the current time interval, obtain regular fluctuation changes, obtain the interval between the peak and trough values ​​of the fluctuation graph based on the fluctuation changes, and send a start command to the corresponding third solenoid valve based on the interval.

9. The gastrointestinal traction device for general surgical laparoscopy according to claim 8, characterized in that, The bonding block (51) has a through tube, which is connected to the suction cup (6). The end of the through tube away from the suction cup (6) is connected to a plug. The plug fits the bonding block (51) perfectly, and the end of the through tube away from the suction cup (6) is connected to the outside.

10. The gastrointestinal traction device for general surgical laparoscopy according to claim 9, characterized in that, The bottom of the support rod (1) is fixedly connected to a first plate (11). The end of the first plate (11) away from the support rod (1) is fixedly connected to a screw (13). The screw (13) is slidably fitted with a second plate (12). The screw (13) is rotatably fitted with a nut (14). The nut (14) is located on the side of the second plate (12) away from the first plate (11).

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