A laparoscopic portal vein right atrium circulation tube

Abstract

The present invention provides a laparoscopic portal vein right atrium circulation tube, belonging to the field of medical devices. It comprises a tube body and two insertion tubes, the two insertion tubes are respectively fixedly connected to the two ends of the tube body, the tube body is set to be straight and made of hard material, and the two insertion tubes are both bendable and made of elastic material; when the device needs to be used, since the tube body and the two insertion tubes are straight when not in use, the two insertion tubes are respectively inserted into the portal vein or the right atrium, after the insertion is completed, the circular ring plate and the connecting plate are driven to slide on the tube body by the driving component, and the connecting plate drives the guide wire to slide in the guide groove, the guide wire first slides from the guide groove on the insertion tube to the guide groove on the tube body, and then passes through the tube body from the guide groove in the tube body, when the guide wire completely leaves the guide groove on the insertion tube, the insertion tube rebounds and bends, restricting the tube body, avoiding the insertion tube from falling off after being inserted into the portal vein or the right atrium, thereby improving the use effect.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and more specifically to a laparoscopic portal vein right atrium circulation tube. Background Art

[0002] Advanced renal cancer can invade the renal vein and inferior vena cava through direct infiltration or blood circulation, and form thrombi or tumor thrombi therein. Inferior vena cava tumor thrombi can cause obstruction of inferior vena cava blood flow, leading to a series of clinical symptoms such as lower limb edema, abdominal distension, and low back pain. In addition, inferior vena cava tumor thrombi have a very high risk of detachment. When detached, the tumor thrombi can enter the lungs with the blood flow, causing pulmonary embolism, and in severe cases may even cause sudden death of the patient. Therefore, the formation of inferior vena cava tumor thrombi poses a great threat to the life and health of patients.

[0003] Currently, surgical removal is an effective method for treating inferior vena cava tumor thrombus. However, when the height of the tumor thrombus in the inferior vena cava is high, surgical thrombectomy requires blocking the inferior vena cava above the second hepatic portal. However, this step will significantly reduce the amount of blood returning to the heart, which has a great impact on the human body's blood circulation, leading to dangerous situations such as decreased blood pressure and blood circulation disorders during surgery. For this reason, a laparoscopic portal vein right atrium circulation tube is proposed. When the inferior vena cava is blocked during thrombectomy, this tube can be used to construct blood circulation from the portal vein to the right atrium to improve the safety of the operation. Summary of the invention

[0004] In view of the problem in the prior art that the amount of blood returning to the heart is reduced after the inferior vena cava is blocked during the inferior vena cava tumor thrombus removal surgery, thereby affecting blood circulation, the purpose of the present invention is to provide a laparoscopic portal vein right atrium circulation tube.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A laparoscopic portal vein right atrium circulation tube comprises a tube body and two insertion tubes, wherein the two insertion tubes are respectively fixedly connected to the two ends of the tube body, the tube body is arranged to be straight and made of hard material, and the two insertion tubes are both bendable and made of elastic material.

[0007] Optionally, one end of the two insertion tubes is provided with a tube tip, and one end of the two insertion tubes close to the tube tip is provided with a plurality of through holes, and the plurality of through holes are arranged in a circle.

[0008] Optionally, the tube body is fixedly connected to an injection tube, and the other end of the injection tube is fixedly connected to an infusion pump.

[0009] Optionally, the inner walls of the tube body and the two insertion tubes are each provided with four guide grooves, the four guide grooves are located on the same straight line, the four guide grooves are arranged in a circle, a guide wire is slidably connected in the guide groove, and the guide wire slides through the tube body at one end close to the tube body.

[0010] Optionally, two circular ring plates are slidably connected to the outer surface of the tube body, four connecting plates are fixedly connected to the side of the two circular ring plates away from each other, and the ends of the four guide wires away from the insertion tube are respectively fixedly connected to the corresponding connecting plates, and a driving assembly for driving the two circular ring plates is provided on the tube body.

[0011] Optionally, the driving assembly includes a fixed block, the outer surface of the tube body is fixedly connected to the fixed block, a rectangular groove is opened in the middle of the fixed block, the inner bottom wall of the rectangular groove is rotatably connected to a rotating rod, the rotating rod rotatably passes through the upper end of the fixed block, the top of the rotating rod is fixedly connected to a knob, the outer surface of the rotating rod is fixedly connected to a gear, the gear is located in the fixed block, and the two circular plates are fixedly connected to a rack rod on one side close to each other, the rack rod and the gear are meshed with each other, the rack rod slides through the fixed block, and the fixed block is provided with a limiting assembly for limiting the rotating rod.

[0012] Optionally, the limiting assembly includes a fixed plate, which is fixedly connected to the outer surface of the rotating rod, the inner wall of the fixed plate is fixedly connected to a first magnet, the top of the fixed block is fixedly connected to a circular plate, the top of the circular plate is rotatably connected to a connecting shaft, the top of the connecting shaft is fixedly connected to an arc plate, and the bottom end of the arc plate is fixedly connected to a second magnet.

[0013] Optionally, a sealing plug is clamped on the inner wall of the injection pipe, a sealing ring is fixedly connected to the outer surface of the sealing plug, and a plug cap is fixedly connected to the top end of the sealing plug.

[0014] Optionally, two T-shaped sliding blocks are fixedly connected to the inner wall of the annular plate, and a T-shaped sliding groove cooperating with the two T-shaped sliding blocks is provided on the tube body.

[0015] Optionally, anti-slip grooves are provided on the knob.

[0016] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0017] In the above scheme, when the device is needed, since the tube body and the two insertion tubes are straight when not in use, the two insertion tubes are respectively inserted into the portal vein or the right atrium. After the insertion is completed, the driving assembly drives the annular plate and the connecting plate to slide on the tube body, and the connecting plate drives the guide wire to slide in the guide groove. The guide wire first slides from the guide groove on the insertion tube to the guide groove on the tube body, and then passes through the tube body from the guide groove in the tube body. When the guide wire completely leaves the guide groove on the insertion tube, the insertion tube rebounds and bends to restrict the tube body, thereby preventing the insertion tube from falling off after being inserted into the portal vein or the right atrium, thereby improving the use effect of the device.

[0018] By providing the tube tip and the through hole, when the tube tip is pulled out from the portal vein or the right atrium, the tube tip is pointed and can seal the portal vein or the right atrium puncture, eliminating the need for manual suture of the puncture to avoid blood extravasation, and blood can be sucked and transported through the through hole.

[0019] An injection tube is provided, connected to an infusion pump, and heparin injection is pumped into the infusion pump. The heparin injection enters the tube body and the insertion tube through the injection tube. When the blood in the portal vein flows to the right atrium, the heparin injection can prevent blood coagulation.

[0020] When the rotating rod needs to be restricted, the arc plate is rotated, and the arc plate drives the second magnet to rotate. When the second magnet rotates to the top of the fixed plate, the first magnet and the second magnet attract each other to restrict the rotating rod, thereby preventing the rotating rod from rotating at will during use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A is an enlarged structural diagram;

[0024] Figure 3 It is a schematic diagram of the front cross-sectional structure of the tube body and the insertion tube of the present invention;

[0025] Figure 4 It is a schematic diagram of the insertion tube structure of the present invention;

[0026] Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at B;

[0027] Figure 6 For the present invention Figure 1 A is an enlarged structural diagram;

[0028] Figure 7 It is a schematic diagram of the structure of the driving assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the restriction component of the present invention;

[0030] Fig. 9 It is a schematic diagram of the sealing plug and sealing ring structure of the present invention;

[0031] Fig.10 It is a schematic diagram of the T-shaped sliding block and T-shaped sliding groove structure of the present invention.

[0032] [Reference Signs]

[0033] 101, tube body; 102, insertion tube; 103, tube tip; 104, through hole; 105, injection tube; 201, guide groove; 202, guide wire; 203, circular ring plate; 204, connecting plate; 205, fixing block; 206, rectangular groove; 207, rotating rod; 208, knob; 209, gear; 210, rack rod; 211, fixing plate; 212, first magnet; 213, circular plate; 214, connecting shaft; 215, arc plate; 216, second magnet; 217, sealing plug; 218, sealing ring; 219, plug cap; 220, T-shaped slider; 221, T-shaped slide groove; 222, anti-slip pattern.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following is a detailed description of a laparoscopic portal vein right atrium circulation tube provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0036] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0039] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0040] like Figures 1 to 10 As shown, an embodiment of the present invention provides a laparoscopic portal vein right atrium circulation tube, including a tube body 101 and two insertion tubes 102, the two insertion tubes 102 are fixedly connected to the two ends of the tube body 101, the tube body 101 is set to be straight and made of hard material, and the two insertion tubes 102 are both bendable and made of elastic material.

[0041] When the device is needed, since the tube body 101 and the two insertion tubes 102 are straight when not in use, the two insertion tubes 102 are respectively inserted into the portal vein or the right atrium. After the insertion is completed, the two insertion tubes 102 are bent to restrict the tube body 101 to prevent the insertion tubes 102 from falling off from the portal vein or the right atrium. When the device is used, the two insertion tubes 102 are straightened with the tube body 101, and then the insertion tubes 102 are taken out from the portal vein or the right atrium to avoid damage to the portal vein or the right atrium during the removal process.

[0042] like Figure 2As shown, a tube tip 103 is disposed at one end of the two insertion tubes 102 , and a plurality of through holes 104 are opened at one end of the two insertion tubes 102 close to the tube tip 103 , and the plurality of through holes 104 are arranged in a circle.

[0043] By providing the tube tip 103 and the through hole 104, when the tube tip 103 is pulled out from the portal vein or the right atrium, the tube tip 103 is pointed and can close the puncture of the portal vein or the right atrium, without the need to manually suture the puncture to avoid blood extravasation, and the blood can be sucked and transported through the through hole 104.

[0044] like Figure 1 As shown, the tube body 101 is fixedly connected with an injection tube 105, and the other end of the injection tube 105 is fixedly connected to the infusion pump.

[0045] By connecting the injection tube 105 to the infusion pump, the heparin injection solution is pumped into the infusion pump, and the heparin injection solution enters the tube body 101 and the insertion tube 102 through the injection tube 105. The heparin injection solution can prevent blood coagulation.

[0046] like Figure 3 and Figure 4 As shown, the inner walls of the tube body 101 and the two insertion tubes 102 are each provided with four guide grooves 201, and the four guide grooves 201 are located on the same straight line, and the four guide grooves 201 are arranged in a circle, and a guide wire 202 is slidably connected in the guide groove 201, and the end of the guide wire 202 close to the tube body 101 slides through the tube body 101.

[0047] By providing the guide groove 201 and the guide wire 202, when the guide wire 202 slides into the guide groove 201 on the insertion tube 102, the guide wire 202 can support the insertion tube 102, so that the insertion tube 102 and the tube body 101 are straight, which facilitates the insertion of the tube tip 103 into the portal vein or the right atrium. When the guide wire 202 leaves the guide groove 201 on the insertion tube 102, the insertion tube 102 rebounds and bends to restrict the tube body 101, thereby preventing the insertion tube 102 from falling off after being inserted into the portal vein or the right atrium.

[0048] like Figure 5 As shown, two annular plates 203 are slidably connected to the outer surface of the tube body 101, and four connecting plates 204 are fixedly connected to the side away from each other of the two annular plates 203, and the ends of the four guide wires 202 away from the insertion tube 102 are respectively fixedly connected to the corresponding connecting plates 204, and a driving component for driving the two annular plates 203 is arranged on the tube body 101.

[0049] When it is necessary to prevent the insertion tube 102 from escaping from the portal vein or the right atrium, when the tip 103 is inserted into the portal vein or the right atrium, the driving assembly drives the annular plate 203 to slide on the tube body 101, the annular plate 203 drives the connecting plate 204 to slide, and the connecting plate 204 drives the guide wire 202 to slide in the guide groove 201, the guide wire 202 first slides from the guide groove 201 on the insertion tube 102 to the guide groove 201 on the tube body 101, and then passes through the tube body 101 from the guide groove 201 in the tube body 101. When the guide wire 202 completely leaves the guide groove 201 on the insertion tube 102, the insertion tube 102 rebounds and bends to restrict the tube body 101, so as to prevent the insertion tube 102 from falling off after being inserted into the portal vein or the right atrium. When the tube tip 103 and the insertion tube 102 are taken out from the portal vein or the right atrium, the driving assembly drives the annular plate 203 and the connecting plate 204 to drive the guide wire 202 to slide in the guide groove 201, and the guide wire 202 slides from the guide groove 201 on the tube body 101 to the guide groove 201 on the insertion tube 102. When the end of the guide wire 202 away from the tube body 101 contacts the tube tip 103, the guide wire 202 can support the insertion tube 102, so that the insertion tube 102 drives the tube tip 103 to be straight with the tube body 101, which facilitates the removal of the tube tip 103 from the portal vein or the right atrium and the insertion of the tube tip 103 into the portal vein or the right atrium, thereby avoiding damage to the portal vein or the right atrium caused by the tube tip 103 and the insertion tube 102 during the insertion or removal process.

[0050] like Figure 6 and Figure 7 As shown, the driving assembly includes a fixed block 205, the outer surface of the tube body 101 is fixedly connected with the fixed block 205, a rectangular groove 206 is opened in the middle of the fixed block 205, the inner bottom wall of the rectangular groove 206 is rotatably connected with a rotating rod 207, the rotating rod 207 rotates and passes through the upper end of the fixed block 205, the top of the rotating rod 207 is fixedly connected with a knob 208, the outer surface of the rotating rod 207 is fixedly connected with a gear 209, the gear 209 is located in the fixed block 205, the two sides of the annular plates 203 close to each other are fixedly connected with a rack rod 210, the rack rod 210 and the gear 209 are meshed with each other, the rack rod 210 slides through the fixed block 205, and the fixed block 205 is provided with a limiting component for limiting the rotating rod 207.

[0051] When the two circular plates 203 need to be driven to move, the knob 208 is turned, the knob 208 drives the rotating rod 207 to rotate, the rotating rod 207 drives the gear 209 to rotate, the gear 209 drives the two rack rods 210 to move, the two rack rods 210 respectively drive the relative circular plates 203 to slide on the tube body 101, the circular plates 203 drive the connecting plate 204 to slide, the connecting plate 204 drives the guide wire 202 to slide in the guide groove 201, and when the two circular plates 203 are close to each other, one end of the guide wire 202 is inserted from the guide groove in the tube 102. When the two annular plates 203 move away from each other, one end of the guide wire 202 slides into the guide groove 201 on the insertion tube 102 to support the insertion tube 102, so that the insertion tube 102 drives the tube tip 103 to be straight with the tube body 101, which facilitates the insertion of the tube tip 103 into the portal vein or the right atrium. When the annular plate 203 slides to a suitable position, the rotation rod 207 is restricted by the limiting component.

[0052] like Figure 8 As shown, the limiting assembly includes a fixed plate 211, which is fixedly connected to the outer surface of the rotating rod 207, and the inner wall of the fixed plate 211 is fixedly connected to the first magnet 212, the top of the fixed block 205 is fixedly connected to a circular plate 213, the top of the circular plate 213 is rotatably connected to a connecting shaft 214, the top of the connecting shaft 214 is fixedly connected to an arc plate 215, and the bottom end of the arc plate 215 is fixedly connected to a second magnet 216.

[0053] When it is necessary to restrict the rotating rod 207, the arc plate 215 is rotated, and the arc plate 215 drives the second magnet 216 to rotate. When the second magnet 216 rotates to the top of the fixed plate 211, the first magnet 212 and the second magnet 216 attract each other to restrict the rotating rod 207, thereby preventing the rotating rod 207 from rotating at will during use of the device.

[0054] like Fig. 9 As shown, a sealing plug 217 is engaged with the inner wall of the injection pipe 105 , a sealing ring 218 is fixedly connected to the outer surface of the sealing plug 217 , and a plug cap 219 is fixedly connected to the top of the sealing plug 217 .

[0055] When the device needs to be stored, the injection tube 105 is removed from the infusion pump, and then the sealing plug 217 is inserted into the injection tube 105 to seal the injection tube 105 so that the bottom end of the plug cap 219 contacts the top end of the injection tube 105. The sealing ring 218 can enhance the sealing effect between the sealing plug 217 and the injection tube 105 to prevent dust and impurities from entering the injection tube 105 during storage, thereby preventing the device from being contaminated.

[0056] like Fig.10 As shown, two T-shaped sliding blocks 220 are fixedly connected to the inner wall of the annular plate 203 , and a T-shaped sliding groove 221 cooperating with the two T-shaped sliding blocks 220 is provided on the tube body 101 .

[0057] By providing a T-shaped slider 220 and a T-shaped slot 221, when the annular plate 203 is sliding, the T-shaped slider 220 is driven to slide in the T-shaped slot 221. The T-shaped slot 221 guides and limits the T-shaped slider 220 and the annular plate 203. The T-shaped slider 220 slides in the T-shaped slot 221, and the stability of the annular plate 203 during the sliding process can also be improved.

[0058] like Figure 7 As shown, the knob 208 is provided with anti-slip grooves 222 .

[0059] The anti-slip pattern 222 is provided to facilitate the staff in turning the knob 208. The anti-slip pattern 222 enhances the friction between the staff's hand and the knob 208, preventing the knob 208 from slipping off the hand during the process of rotating.

[0060] The workflow of the technical solution of the present invention is as follows:

[0061] When in use, an artificial channel is established between the portal vein system and the right atrium to shunt the portal vein blood flow and reduce the portal vein pressure. The blood in the portal vein passes through the device, allowing the circulating pipeline to complete the suction of the blood in the portal vein, thereby transporting the blood to the right atrium.

[0062] When the device is needed, since the tube body 101 and the two insertion tubes 102 are straight when not in use, the two insertion tubes 102 are respectively inserted into the portal vein or the right atrium. After the insertion is completed, the knob 208 is turned, and the knob 208 drives the rotating rod 207 to rotate, and the rotating rod 207 drives the gear 209 to rotate, and the gear 209 drives the two rack rods 210 to approach each other, and the two rack rods 210 respectively drive the corresponding annular plates 203 to slide on the tube body 101, and the annular plates 203 drive the connecting plates 204 to slide, and the connecting plates 204 drive the guide wire 202 to slide in the guide groove 201, and the guide wire 202 first slides from the guide groove 201 on the insertion tube 102 to the guide groove 201 on the tube body 101, and then passes through the tube body 101 from the guide groove 201 in the tube body 101. When the guide wire 202 completely leaves the guide groove 201 on the insertion tube 102, and the insertion tube 102 rebounds and bends to restrict the tube tip 103 and the tube body 101. Then, the arc plate 215 is rotated, and the arc plate 215 drives the second magnet 216 to rotate. When the second magnet 216 rotates to the top of the fixed plate 211, the first magnet 212 and the second magnet 216 attract each other to restrict the rotating rod 207, so as to prevent the insertion tube 102 from being inserted into the portal vein or the right atrium and falling off, causing damage to the portal vein or the right atrium. The blood is sucked and transported through the through hole 104, and the injection tube 105 is connected to the infusion pump. Heparin injection is pumped into the infusion pump. The heparin injection enters the tube body 101 and the insertion tube 102 through the injection tube 105. The heparin injection can prevent blood coagulation.

[0063] When the device is used, the arc plate 215 is rotated, and the arc plate 215 drives the second magnet 216 to leave the first magnet 212, thereby releasing the restriction on the rotating rod 207. Then, the knob 208 is turned in the opposite direction, and the knob 208 drives the rotating rod 207 to rotate, and the rotating rod 207 drives the gear 209 to rotate, and the gear 209 drives the two rack rods 210 to move away from each other. The two rack rods 210 respectively drive the corresponding annular plates 203 to slide on the tube body 101, and the annular plates 203 drive the connecting plates 204 to slide, and the connecting plates 204 drive the guide wire 202 to slide in the guide groove 201, and the guide wire 202 slides from the guide groove 201 on the tube body 101 to the guide groove 201 on the insertion tube 102. When the end of the guide wire 202 away from the tube body 101 contacts the tube tip 103, the guide wire 202 can support the insertion tube 102, so that the insertion tube 102 is inserted. The insertion tube 102 drives the tube tip 103 to be straight with the tube body 101, which is convenient for removing the tube tip 103 from the portal vein or the right atrium, avoiding damage to the portal vein or the right atrium caused by the tube tip 103 and the insertion tube 102 during the removal process. When the tube tip 103 is pulled out from the portal vein or the right atrium, the tube tip 103 is pointed, which can close the portal vein or right atrium puncture, and there is no need to manually sew the puncture to avoid blood extravasation. Then, the injection tube 105 is removed from the infusion pump, and then the sealing plug 217 is inserted into the injection tube 105 to seal the injection tube 105 so that the bottom end of the plug cap 219 contacts the top end of the injection tube 105. The sealing effect between the sealing plug 217 and the injection tube 105 can be enhanced by the sealing ring 218 to avoid dust and impurities entering the injection tube 105 during storage, causing contamination of the device.

[0064] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laparoscopic portal vein right atrium circulation tube, comprising a tube body and two insertion tubes, characterized in that: The two insertion tubes are respectively fixedly connected to the two ends of the tube body, the tube body is set to be straight and made of hard material, and the two insertion tubes are both bendable and made of elastic material; The tube body is provided with a driving assembly for driving the two circular ring plates; the driving assembly comprises a fixed block, the outer surface of the tube body is fixedly connected with the fixed block, a rectangular groove is provided in the middle of the fixed block, the inner bottom wall of the rectangular groove is rotatably connected with a rotating rod, the rotating rod rotatably penetrates the upper end of the fixed block, the top end of the rotating rod is fixedly connected with a knob, the outer surface of the rotating rod is fixedly connected with a gear, the gear is located in the fixed block, and the two circular ring plates are fixedly connected with a rack rod on one side close to each other; The inner walls of the tube body and the two insertion tubes are each provided with four guide grooves, the four guide grooves are located on the same straight line, the four guide grooves are arranged in a circle, a guide wire is slidably connected in the guide groove, and the end of the guide wire close to the tube body slides through the tube body; The outer surface of the tube body is slidably connected to two annular plates, and four connecting plates are fixedly connected to the sides of the two annular plates away from each other. The ends of the four guide wires away from the insertion tube are respectively fixedly connected to the corresponding connecting plates.

2. The laparoscopic portal vein right atrium circulation tube according to claim 1, characterized in that: One end of the two insertion tubes is provided with a tube tip, and one end of the two insertion tubes close to the tube tip is provided with a plurality of through holes, and the plurality of through holes are arranged in a circle.

3. The laparoscopic portal vein right atrium circulation tube according to claim 2, characterized in that: The tube body is fixedly connected with an injection tube, and the other end of the injection tube is fixedly connected to an infusion pump.

4. The laparoscopic portal vein right atrium circulation tube according to claim 1, characterized in that: The rack rod is meshed with the gear, and the rack rod slides through the fixed block, and a limiting component for limiting the rotating rod is arranged on the fixed block.

5. The laparoscopic portal vein right atrium circulation tube according to claim 4, characterized in that: The limiting assembly includes a fixed plate, which is fixedly connected to the outer surface of the rotating rod, the inner wall of the fixed plate is fixedly connected to a first magnet, the top of the fixed block is fixedly connected to a circular plate, the top of the circular plate is rotatably connected to a connecting shaft, the top of the connecting shaft is fixedly connected to an arc plate, and the bottom end of the arc plate is fixedly connected to a second magnet.

6. The laparoscopic portal vein right atrium circulation tube according to claim 3, characterized in that: A sealing plug is clamped on the inner wall of the injection pipe, a sealing ring is fixedly connected to the outer surface of the sealing plug, and a plug cap is fixedly connected to the top end of the sealing plug.

7. The laparoscopic portal vein right atrium circulation tube according to claim 6, characterized in that: The inner wall of the circular ring plate is fixedly connected with two T-shaped sliding blocks, and the tube body is provided with a T-shaped sliding groove which cooperates with the two T-shaped sliding blocks.

8. The laparoscopic portal vein right atrium circulation tube according to claim 7, characterized in that: The knob is provided with anti-slip grooves.

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