54 results about "Hepatic portal" patented technology

The invention discloses a guide wire navigation method for endoscopic biliary stent implantation for portal stenosis and a guide wire navigation system thereof. The method comprises the following steps: S1, receiving an input magnetic resonance pancreatic duct imaging image of a patient with portal stenosis; S2, performing image segmentation on the magnetic resonance pancreatic duct imaging imageof the patient with the hilar biliary stenosis based on an image segmentation method of deep learning, and predicting a navigation line from the tail end of the biliary duct to a hilar stenosis part;S3, receiving a real-time perspective image in an endoscopic retrograde cholangiopancreatography; S4, registering the two images according to the key points of the biliary duct on a magnetic resonance cholangiopancreatography image and the key points of the guide wire on the perspective image in the endoscopic retrograde cholangiopancreatography; and S5, displaying a registered composite image, and when the predicted navigation line in the composite image is not matched with the inserted guide wire, changing the position of the guide wire until the predicted navigation line is matched with the inserted guide wire. The method and the system can guide a doctor to perform biliary duct intubation, help the doctor to judge whether biliary duct intubation is correct or not, and reduce the use amount of a contrast media during an operation so as to reduce postoperative complications.

The invention provides a hepatic portal occlusion device. The hepatic portal occlusion device comprises a water tube, a water bag, a water pump, a rod-like connecting rod and a controller. The water tube is provided with a closed first end and a closed second end, a containing space is defined by the water tube, and the containing space is decreased with the increase of liquid in the water tube and increased with the decrease of the liquid in the water tube. The water bag is used for storing a certain amount of liquid. The water pump is used for delivering liquid in the water bag to the water tube during hepatic portal occlusion and delivering the liquid in the water tube to the water bag during cancelling the hepatic portal occlusion. The rod-like connecting rod is detachably connected with the water pump. The controller is used for controlling the volume of the liquid in the water tube by controlling the water pump. According to the hepatic portal occlusion device, occlusion pressure can be adjusted during laparoscopic surgery, so that the selective occlusion is achieved, and liver injuries are reduced.

The present invention contemplates devices and methods to administer nutritional compositions and / or therapeutic drugs directly into a portal venous system. For example, total parenteral nutrition therapy may be administered directly into the hepatic portal venous system thus circumventing known side effects of conventional parenteral administration. Alternatively, hepatic diseases and disorders may be treated using locally administered therapeutic drugs. Devices capable of direct portal venous system administration include, but are not limited to, a direct portal access catheter or a transjugular access catheter.

The invention discloses a percutaneous transhepatic implanted multifunctional biliary drainage device. The percutaneous transhepatic implanted multifunctional biliary drainage device comprises a drainage tube, a flexible expansion stent, radioactive particle strips and a development mark part, wherein the flexible expansion stent is arranged at the right end part of the drainage tube; the radioactive particle strips are arranged on the flexible expansion stent; the development mark part is arranged on the drainage tube at two sides of the flexible expansion stent and is developed under imagingequipment; first drainage holes are formed in the drainage tube at the left side of the flexible expansion stent; and second drainage holes are formed in the drainage tube at the right side of the flexible expansion stent. The percutaneous transhepatic implanted multifunctional biliary drainage device has the advantages that the expansion stent is integrated on the drainage tube, a flexible airbag can expand an obstructive site while meeting bile drainage, and radioactive particles on the flexible airbag can carry out radiation therapy on tumor tissues at the obstructive site at the same time, so that the carrying time of patients is effectively shortened; the drainage tube can be linear and meets the requirements of bile drainage, obstruction expansion and tumor tissue treatment of single duct obstruction; and the drainage tube can be of a Y-shaped structure, and meets the treatment requirements of the patients with hilar biliary duct obstruction.

The invention relates to a method for cleaning a fresh animal liver, removing toxic matters in the fresh animal liver and keeping cell tissue in the fresh animal liver fresh. The method comprises the following steps: rapidly taking an intact fresh liver from the body of an animal, cutting off the gallbladder in the fresh liver and preserving a first hepatic portal inner blood vessel; carrying out rapid dissection, finding out a portal vein, a biliary tract, a hepatic artery and the upper and lower ends of the inferior vena cava, and inserting disinfected medical conduits into the portal vein, the biliary tract and the hepatic artery vessel; filling the conduits with perfusion liquid, allowing the perfusion liquid to fully enter the blood sinus system of the liver via the portal vein and the hepatic artery, continuously discharging macrophages and other immune cells containing a great number of toxins, blood and harmful substances, and discharging bile via the biliary tract system; and when the fresh liver turns white from blood red, taking off the conduits, thereby finishing treatment of the liver. The animal liver treated by using the method is maximally prevented from damage to the cell tissue of the liver, and can remove toxins, blood and harmful substances in the liver, which guarantees safety in subsequent eating of the liver.

The invention discloses a recoverable hepatic portal occlusion device under laparoscope, including a main tube. Limiting plates which can be lifted and rotated are installed inside the main tube, a bottom tube is installed on the lower side of a base, and a rotatable rotating inner shell is arranged at the position corresponding to the limiting plates inside the bottom tube, the upper end of the rotating inner shell is fixedly connected with a limiting column connected to the limiting plates, the bottom end of the rotating inner shell is provided with a rotating closed structure which can rotates with the rotation of the rotating inner shell, the surface of the main tube is connected with a lifting knob by screw threads, the bottom end of the lifting knob is connected with a knob base by bearings, and the lower side of the knob base is provided with a clamping structure; and the bottom tube for fixing a hepatic portal occlusion belt and the main tube can be detached, when the bottom tube is used to fix the hepatic portal occlusion belt, the bottom tube can be directly placed in the patient's body, the operation is simple and convenient, and an intelligent alarm clock can also timing the blocking and relaxing time to the hepatic portal, so that medical staff can be reminded to prevent liver damage caused by long-time blocking at the right time.

The invention discloses a porta hepatis blocker, and relates to the technical field of medical apparatuses. The porta hepatis blocker comprises a gun body, a displayer, a handle, a connecting rod, a button, a sliding strip, a sliding groove, a probe, a connecting hole, a connector and a medical wire, wherein a through groove which is matched with the probe is horizontally formed in the connectingrod; the probe is in electric data connection with the displayer; a plurality of first balls and a plurality of second balls which are rotatably connected are arranged at one end of the inner part ofthe connecting rod, and a plurality of third balls and a plurality of fourth balls which are rotatably connected are arranged at the other end of the inner part of the connecting rod; and the first balls and the third balls are arranged at the top of the through groove, and the second balls and the fourth balls are arranged at the bottom of the through groove. According to the porta hepatis blocker disclosed by the invention, a blood vessel requiring blocking can be quickly tied by the medical wire; through adjusting the position of the button, the tightness degree of tying is regulated, so that the position of the blood vessel is convenient to examine; and rolling auxiliary can be performed on two ends of the through groove, so that the probe part in the through groove can be always in astraight line state, and the stability of the probe can be strengthened.

The invention relates to the liver-specific delivery and / or expression of an enzyme which has a deoxyribonuclease (DNase) activity for enhanced clearance of cell free DNA (cfDNA) accumulated in hepatic porto-sinusoidal circulation and the use of such liver-specific delivery and / or expression for treatment of various diseases and conditions, including cancer and neurodegeneration.

The invention relates to application of protein C in treating hepatic portal hypertension, relates to the relevant research of the protein C and portal hypertension, and also relates to protein C inhibitors including miRNA. The protein C inhibitor (miRNA) can inhibit the proliferation of hepatocytes and promote the apoptosis of the hepatocytes, which can reduce hyperplasia tissue of hepatic sinusoids to make portal venous flow smooth and reduce the portal pressure, thereby opening up new research prospects for the treatment of the portal hypertension (especially portal vein cavernous transformation) and providing new ideas for the deep development of miRNA drugs and clinical treatment.

The invention provides a pressure-adjustable hepatic portal occlusion device and an occlusion method, and relates to the technical field of surgical instruments. The pressure-adjustable hepatic portalocclusion device comprises an air bag A, an air bag B, a one-way air valve and a pressure gauge, wherein the air bag A is strip-shaped; an inflation inlet and a pressure gauge interface are formed inthe air bag A; movable buckles are mounted at two ends of the air bag A and can be connected or separated; when the movable buckles are in a connected state, the air bag A forms a circular ring; an air outlet is formed in the air bag B and communicated with the inflation inlet of the air bag A; the one-way air valve is arranged between the inflation inlet of the air bag A and the air outlet of the air bag B; and the pressure gauge is connected onto the pressure gauge interface of the air bag A. The hepatic portal occlusion method is applied to the pressure-adjustable hepatic portal occlusiondevice. The inflation amount can be adjusted and controlled on the basis of a display value of the pressure gauge, and the occlusion tightness degree is accurately adjusted and controlled.

The invention relates to the technical field of medical auxiliary instruments, in particular to a portable hepatic portal occlusion device. The device comprises a guide tube used for supplying an occlusion band to a to-be-occluded position, a locking part arranged between the discharging ends of two channels, and a clamping part which comprises a seat body, two connecting rod groups arranged symmetrically and a one-way locking structure, wherein one end of each connecting rod group is connected with a force application part to clamp the occlusion band; the one-way locking structure is used forkeeping a clamping action; and the seat body is connected with the guide tube through a hook body structure. The occlusion band at the tail ends of the channels forms a ring body structure through movement of the guide tube after a connection relation is removed, and the size of the ring body structure is adjusted by controlling the occlusion band through the feeding ends of the channels. According to the invention, a relatively convenient ring formation mode for the occlusion band is obtained by improving the structure of the hepatic portal occlusion device, the size of the ring body structure is convenient to control, and the hepatic portal occlusion device can be universally used in laparoscopic and open-state operations only by changing the structural forms of the guide tube and the clamping part in an application process.

The invention provides a starch-indolic acid derivative, a preparation method and application thereof, and relates to the technical field of modified starch. According to the invention, the starch-indolic acid derivative is esterified starch generated by esterification reaction of starch and indolic acid under the action of a condensing agent and and alkali, has relatively high resistance, can resist degradation of the stomach and the small intestine, can release indolic acid beneficial to intestinal health through fermentation of intestinal flora after reaching the colon part, has obvious advantages compared with traditional administration modes such as intragastric administration, intraperitoneal injection and the like, and can obviously increase the content of indolic acid in colon and hepatic portal venous blood; and indoleic acid can activate an aromatic hydrocarbon receptor to play an immunoregulation role, and the indoleic acid and the regulation role of short-chain fatty acid released by fermentation of starch with intestinal flora are superposed, so that a product which synergistically plays the immunoregulation role through a plurality of immune system signal pathways is provided.

The invention discloses a recoverable hepatic portal obstruction device under a laparoscope. The recoverable hepatic portal obstruction device under the laparoscope comprises a limiting controller. Aninto-belly length scale is arranged on the outer side wall of the limiting controller. A rotating rod is arranged in the limiting controller, an operating mechanism is connected to the upper part ofthe rotating rod, a locking length scale is arranged on the outer side wall of the rotating rod, a fixed disk is connected to the lower part of the rotating rod, a hinged rotating disk is connected tothe side, away from the rotating rod, of the fixed disk, a rotating disk is connected to the lower part of the hinged rotating disk, and a lock catch body is arranged on the side, away from the hinged rotating disk, of the rotating disk. According to the recoverable hepatic hilum obstruction device under the laparoscope, a mounting groove, a mounting box, a supporting frame, a storage battery, acooling fan, a protection board, a ventilation opening and other structures are arranged, a handle is enabled to have the functions of ventilation and heat dissipation, the problem of sweating in thehands of a doctor when the weather is hot is solved, and the comfort and accuracy when the doctor operates the handle are improved.

The invention belongs to the field of animal experimental models, and relates to application of ultrasonic detection equipment in semiquantitatively determining a sheep fatty liver. The application comprises the steps that a sheep fatty liver model is built by simulating negative balance of energy in the natural state; by means of characteristic analysis on liver ultrasonic images and corresponding data analysis on liver triglyceride content, a sheep fatty liver ultrasonic diagnosis method for semiquantitatively diagnosing that the liver triglyceride content is smaller than 4%, between 4% and 10% and larger than 10% is determined according to the liver echo brightness enhancing degree, the liver and kidney echo ratio increasing degree, the hepatic vessel visualization weakening degree and the acoustic shadow visualization fuzzy degree of hepatic portal veins, postcaval veins, rumen walls, intestines and diaphragms at the far field of the liver. The method is high in sensitivity, high in specificity and good in repeatability and has an ideal application prospect.

The invention relates to the technical field of liver surgery and particularly to a hepatic portal blocking band which is detachable, has a timing function and does not need blocking pincers. The blocking band comprises a blocking band body; a fixing male piece and a fixing female piece are arranged at the head end and the tail end of the blocking band body respectively; a plurality of protrudingclamps are integrally formed on the fixing male piece; a plurality of inserting holes are formed in the fixing female piece; the protruding clamps can extend into the inserting holes; and the head endand the tail end of the blocking band body are hot-melted into welding ends. According to the hepatic portal blocking band which is detachable, has a timing function and does not need blocking pincers, the fixing male piece and the fixing female piece are arranged to be striking red, so that a surgeon is reminded to pay attention to aligning and embedding of the ends of the blocking band body, and the surgeon does not need to spend time in finding the two ends of the hepatic portal blocking band and then placing blocking pincers. The two ends of the blocking band are closed, so that an exudate cannot enter the tube during an operation, and the exudate in a conventional blocking band tube can be prevented from being thrown into eyes of the surgeon.

The invention discloses a teaching model for human body hepatic portal vein system anatomy and a demonstrating method of the human body hepatic portal vein system based on the model. The structure comprises a model box, an organ model and a vein system model are arranged in the model box, the organ model is composed of models of part of human organs, the vein system model is composed of vein models with the constitution being the same as that of the human body hepatic portal vein system, the vein models are hollow tubes made of a transparent material, LED lamp strips are arranged in the vein models in a penetrating manner, the LED lamp strips are connected to a power supply controller, and switch buttons used for controlling power supplies of the LED lamp strips are arranged on the power supply controller. According to the technical scheme, through the combination of sound, light and shape, the human body hepatic portal vein anatomy and blood circulation during the hepatic portal veinhypertension can be completely, accurately and intuitively displayed, so that a student can more easily understand the complicated anatomy structure, through practical teaching verification, the learning progress and understanding of the student for the relevant knowledge of the human body hepatic portal vein can be accelerated and deepened, in addition, the model device is integrally arranged inthe box, and thus teaching transfer is facilitated.

The invention discloses a laparoscopic hepatic portal occlusion device and an application method. The laparoscopic hepatic portal occlusion device comprises a fixing barrel, wherein the top of an inner wall of the fixing barrel is rotationally connected with an outer screw barrel through a bearing; the top of the outer screw barrel is fixedly connected with a knob; through grooves are formed in the top, close to the left side and the right side, of the fixing barrel; the inner wall of each through groove is connected with a moving rod in a sliding manner; and the surface of the outer screw barrel is in threaded connection with a push-pull assembly for driving the moving rods to move from left to right. Through cooperation of the structures, a blocking band can be simply and quickly clampedand fixed through rotating the knob after being preliminarily clamped, clamping and fixing are firmer, a clamping assembly moves upwards by rotating a screw after the blocking band is clamped and fixed, and the blocking band contracts, so that hepatic portal occlusion is achieved, the operation process is relatively simple and convenient and convenience is provided for surgical operation.

The invention discloses a hepatic portal occlusion device with remote control. The hepatic portal occlusion device comprises an upper shell and a lower shell, wherein one side of the upper shell and one side of the lower shell are movably connected together by a hinge, and the other opposite sides of the upper shell and the lower shell are clamped together in an openable-closable manner by a fastener; the upper shell and the lower shell enclose into a hepatic portal occlusion working cavity; the hepatic portal occlusion working cavity is internally provided with a miniature speed-reducing motor, a main controller, a radio-frequency receiving module and a battery module; the output end of the radio-frequency receiving module is connected to the input end of the main controller, and the control-signal output end of the main controller is connected to the driving-signal input end of the miniature speed-reducing motor; an output shaft of the miniature speed-reducing motor is connected witha gear, an occlusion belt is meshed on the gear, and one end of the occlusion belt is fixed at the outer part of the hepatic portal occlusion working cavity. The hepatic portal occlusion device withremote control disclosed by the invention has the beneficial effects that the occlusion belt can be loosened or tightened by remotely controlling the forward and reverse rotation of the miniature speed-reducing motor, so that occlusion and dredge of blood flow into the liver under a laparoscope are realized, the operation is simple and the difficulty and the risk of hepatic portal occlusion in theliver operation are greatly reduced.

The invention provides a porta hepatis blocking belt, and relates to the technical field of medical instruments. The porta hepatis blocking belt comprises a belt body, a fixing hole and a releasing hole are formed in the belt body, and the fixing hole is communicated with the releasing hole; a damping hole is formed in the outer wall of the belt body, and a damping protrusion matched with the damping hole is arranged on the inner wall of the fixing hole. The connecting section on the belt body can be in interference fit with the fixing hole, and the connecting section on the belt body can be in clearance fit with the relieving hole. The technical effect that the hepatic portal blocking belt is convenient to remove is achieved.

The invention provides a numerical control filling type laparoscopic portal blood blocking instrument which comprises a filling type laparoscopic portal blood blocking tape, a connecting tube with a one-way valve, a filling medium and an infusion pump with a digital control chip. The filling type laparoscopic portal blood blocking tape is connected to the connecting tube with the one-way valve, the filling medium is arranged in the infusion pump with the digital control chip, the infusion pump with the digital control chip is connected to the filling type laparoscopic portal blood blocking tape through the connecting tube with the one-way valve, and accordingly the filling medium is filled into the filling type laparoscopic portal blood blocking tape. The digital control chip is used for controlling infusion of the filling medium towards the filling type laparoscopic portal blood blocking tape.

The invention discloses a method for blocking hepatic portal blood flow under a laparoscope. The method comprises the following steps: (1) performing exploration under the laparoscope, performing hepatic portal dissection, and putting a sterilization blocking belt into the laparoscope through an operation hole below the xiphoid with endoscope separating forceps; (2) leading the sterilization blocking belt to bypass the first hepatic portal, and aligning the two ends of the sterilization blocking belt; (3) leading one end of an intrathoracic drainage tube to enter the enterocoelia through the operation hole below the xiphoid, and leading the endoscope separating forceps to enter the enterocoelia through a silica gel chest drainage tube; (4) leading out the two heads of the sterilization blocking belt, and adjusting the depth of the chest drainage tube; (5) clamping the chest drainage tube and the sterilization blocking belt with hemostatic forceps for standby application; (6) during hepatic portal occlusion, tightening the preset sterilization blocking belt, and clamping and fixing the chest drainage tube and the sterilization blocking belt again. Not only can the hepatic portal blood flow be effectively blocked according to the method, but also the method is simple and convenient.

The invention provides a deep learning segmentation system for hepatic veins and hepatic portal veins. The deep learning segmentation system comprises a coding module, a sequence attention association fusion module, an inter-slice-graph association module and a decoding module. An inter-slice-graph association module designed based on a graph neural network captures richer and higher-order relationships between adjacent CT sequences and improves the continuity of blood vessel segmentation; a sequence attention association fusion module designed based on an attention mechanism associates and fuses information of different dimensions, and the fine blood vessel segmentation accuracy is improved; in addition, the invention further provides a loss function combined with a blood vessel edge measurement constraint term, and the blood vessel edge is optimized and adjusted.

The present invention discloses a guide wire navigation method and system for endoscopic biliary stent implantation for hilar stenosis, comprising the following steps: S1: receiving input magnetic resonance cholangiopancreatography images of patients with hilar biliary stenosis ; S2: The image segmentation method based on deep learning is used to segment the MRI cholangiopancreatography images of patients with hilar bile duct stenosis, and predict the navigation line from the end of the bile duct to the site of hilar stenosis; S3: Receive endoscopic retrograde pancreaticobiliary Real-time fluoroscopy images in angiography; S4: According to the key points of the bile duct on the magnetic resonance cholangiopancreatography image and the key points of the guide wire on the fluoroscopy image in endoscopic retrograde cholangiopancreatography, the two images are registered; S5: displaying the composite image after registration, when the predicted guide wire in the composite image does not match the inserted guide wire, change the position of the guide wire until the two match. The invention can guide the doctor to perform bile duct intubation, help the doctor judge whether the bile duct intubation is correct, reduce the amount of contrast medium used in the operation and reduce postoperative complications.

The invention relates to a medical instrument, in particular to a total hepatic vascular exclusion auxiliary device, an operation method and application of the total hepatic vascular exclusion auxiliary device. The device comprises a support rod, a covered stent with elasticity and a control component controlling opening and closing of the covered stent, wherein the covered stent is covered on the support rod, the tail end of the covered stent is connected with the middle portion of the support rod, and the control component is respectively connected with the support rod and the covered stent. The operation method comprises the steps of fixing the support rod, operating the control component to enable the covered stent to be opened, and operating the control component to enable the covered stent to be closed. The device is especially applied to a surgery of handling hepatic vein and retrohepatic inferior vena cava injury, the total hepatic vascular exclusion auxiliary device is led into the retrohepatic inferior vena cava through the support rod and is matched with first hepatic portal exclusion to be used, total hepatic vascular exclusion can be achieved, and meanwhile blood flow in the retrohepatic inferior vena cava is not blocked. A position of the hepatic vein and retrohepatic inferior vena cava injury is enabled to acquire a clear blood-free operation view, operation is rapid and simple, and blocking efficiency is high.

The invention discloses a porta hepatis blocker. The porta hepatis blocker comprises a sleeve, a blocking hose, a folding assembly and a pressing device. The blocking hose is mounted at the lower end of the sleeve; the folding assembly is installed in the blocking hose and comprises a plurality of connecting assemblies which are arranged in sequence, and any connecting assembly is provided with two connecting units which are rotatably connected; the two connecting units of any connecting assembly are correspondingly and rotationally connected with the two connecting units of the adjacent connecting assembly respectively, and the line included angle theta 1 formed by the two rotating axes of the two adjacent connecting assemblies is smaller than 180 degrees; the pressing device is installed in the sleeve and connected with the two connecting units at the head end of the folding assembly, and when the pressing device is subjected to pressing force, the pressing device drives the tail end of the folding assembly to be wound to the wall of the sleeve. According to the porta hepatis blocking sleeve, blood vessels can be bound together under the condition that the blood vessels are not damaged.

The present invention relates to the technical field of medical aids, in particular to a portable hilar blocker, comprising: a guide tube for supplying a blocking belt to a position to be blocked; a locking part arranged in the middle of the discharge ends of two channels position; the clamping part, including the seat body, two symmetrically arranged connecting rod groups and a one-way locking structure; one end of the connecting rod group is connected with the force application part to realize the clamping of the blocking belt, and the one-way locking structure is used In order to maintain the clamping action; the seat body is connected with the guide tube through the hook structure. After the connection relationship is released, the movement of the guide tube makes the blocking belt at the end of the channel form a ring structure, and the size of the ring structure is controlled by the channel feeding end. The control of the broken belt realizes the regulation. In the present invention, through the improvement of the structure of the hepatic hilum blocker, a more convenient way of forming a ring for the blocking band is obtained. The size of the ring structure is easy to control, and only the structural form of the guide tube and the clamping part need to be changed during the application process. , which can be commonly used in laparoscopic and open operations.

The invention discloses a hepatic portal blood flow blocking device, which relates to the field of clinical medicine, and comprises a catheter, a blocking bag and a positioning head. The base end of the catheter is provided with a protective plug to prevent external impurities from entering the catheter; At least one layer of flexible layer material, the inner surface of the flexible layer or in the flexible layer is provided with linear support frames arranged at intervals, and the support frames are made of shape memory alloy; the flexible layer surrounds the interior to form a cavity; the end of the cavity The positioning head is formed by a protrusion away from the catheter. The center of the positioning head is provided with a pinhole-shaped through hole connecting the outside to the cavity. The positioning head is also covered with an annular positioning ring. It realizes the ability to reduce the requirements for ultrasound-guided technology and puncture technology during use, and realizes simple and rapid blood flow occlusion in the hepatic portal vein, so as to implement precise resection. The technical effect of reducing the chance of portal vein metastasis and improving the survival rate of patients in the perioperative period after surgery.

The invention relates to the technical field of medical instrument auxiliary equipment and especially relates to a laparoscopic first hepatic portal occlusion device. The device can limit the tensioning path of the blocking ring, prevent the surgical failure caused by the torsion, and improve the reliability of use. The blocking ring and the connecting plug are detachable for easy replacement andreduce the use limitations. The device comprises an outer sleeve, an inner sleeve, a connecting plug and a blocking ring; the device comprises a left upper top board, a left lower bottom board, a leftplacing block, a left screwed conduit, a left threaded rod, a left first pulley, a left second pulley, a left baffle plate, a right upper top board, a right lower bottom board, a right placing block,a right screwed conduit, a right threaded rod, a right first pulley, a right second pulley and a right baffle plate; the device also comprises a left locking bolt and a right locking bolt; a left side and a right side of the bottom of the connecting plug are provided with a left jack and a right jack; a left side and a right side of the front end of the connecting plug are respectively provided with a left screwed hole and a right screwed hole; the left screwed hole is connected with the left jack and the right screwed hole is connected with the right jack.