Construction method of intravascular instrument application experimental device and experimental device

Abstract

The invention discloses a construction method of a vascular intracavity instrument application experiment device. The construction method comprises the following steps: constructing two vascular end clamping mechanisms; the blood vessel end clamping mechanism is provided with a liquid feeding and discharging port and an instrument stretching port, and the liquid feeding and discharging port is connected with an external liquid circulation module; the two blood vessel end clamping mechanisms are fixedly connected and slidably connected to the longitudinal moving track base respectively; or the two blood vessel end clamping mechanisms are both connected to the longitudinal moving track base in a sliding mode; connecting a longitudinal moving track seat to the bottom of the water tank; and the water tank is connected with a temperature control module. A longitudinal moving track base is arranged in a water tank, two blood vessel end clamping mechanisms are connected to the longitudinal moving track base, and a liquid inlet and outlet port and an instrument stretching port are formed in each blood vessel end clamping mechanism, so that the two blood vessel end clamping mechanisms can clamp the two ends of a blood vessel; the blood vessel cavity is filled with flowing liquid through the liquid inlet and outlet port so as to simulate the environment in the blood vessel cavity, and when an experiment is carried out, an instrument only needs to stretch in from the instrument stretching-in port.

Description

Technical Field

[0001] This invention relates to the field of endovascular experimental devices, and in particular to a method for constructing and an experimental device for the application of endovascular instruments. Background Technology

[0002] Due to the differences in anatomical conditions between laboratory animals and humans, in vitro vascular experiments are an important experimental method. In in vitro vascular experiments, it is usually necessary to harvest isolated blood vessels and place them in an extracorporeal circulation system. These systems are connected through a series of devices to create a suitable experimental environment for observation or corresponding procedures, such as interventional therapy. Unlike purely observational experiments, experiments involving therapeutic procedures require more sophisticated extracorporeal circulation systems tailored to practical needs. However, in in vitro vascular experiments, due to the narrowing of some blood vessel lumens, it is often difficult for researchers to open the narrowed lumens and fix the isolated blood vessel. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a method for constructing an experimental device for the application of endovascular instruments and an experimental device thereof. The specific technical solution is as follows:

[0004] A method for constructing an experimental device for the application of endovascular instruments includes the following steps:

[0005] Step 1: Construct two vessel end clamping mechanisms;

[0006] Step 2: Open a fluid inlet / outlet port and an instrument insertion port on the blood vessel end clamping mechanism, and connect the fluid inlet / outlet port to an external fluid circulation module;

[0007] Step 3: Fix and slide the two blood vessel end clamping mechanisms onto the longitudinal moving track seat respectively; or slide both blood vessel end clamping mechanisms onto the longitudinal moving track seat.

[0008] Step 4: Connect the longitudinal moving track seat to the bottom of the water tank;

[0009] Step 5: Connect the water tank to the temperature control module.

[0010] Preferably, the steps specifically include the following sub-steps:

[0011] Step 1.1: Install the vascular clamp on the side of the clamping block;

[0012] Step 1.2: Fix and slide the two clamping blocks onto the transverse moving track seat respectively; or slide both clamping blocks onto the transverse moving track seat.

[0013] Step 1.3: Connect one end of the spring to the transverse moving track seat and the other end to the clamping block that is slidably connected to the transverse moving track seat.

[0014] Preferably, the steps specifically include: providing a double-ended bifurcated pipe at the end of the connecting pipe that can be clamped between the two clamping blocks, and connecting one end of the double-ended bifurcated pipe to the external liquid circulation module; wherein the end of the double-ended bifurcated pipe connected to the external liquid circulation module forms the inlet / outlet port, and the other end of the double-ended bifurcated pipe forms the instrument insertion port.

[0015] Preferably, the connecting tube can be rotated and clamped between the two clamping blocks to adjust the relative position of the instrument insertion port and the inlet / outlet port.

[0016] Preferably, the step of fixing and slidingly connecting the two clamping blocks to the transverse moving track seat specifically includes: fixing one of the clamping blocks to one end of the slide rail of the transverse moving track seat; and sliding the other clamping block on the slide rail of the transverse moving track seat.

[0017] The step of slidingly connecting the two clamping blocks on the transverse moving track seat specifically includes: sliding the two clamping blocks on the slide rail of the transverse moving track seat.

[0018] Preferably, the step of fixing and slidingly connecting the two blood vessel end clamping mechanisms to the longitudinal moving track seat specifically includes: fixing one of the blood vessel end clamping mechanisms to one end of the slide rail of the longitudinal moving track seat; and sliding the other blood vessel end clamping mechanism on the slide rail of the longitudinal moving track seat.

[0019] The step of slidably connecting both of the blood vessel end clamping mechanisms to the longitudinal moving track seat specifically includes: slidably setting both of the blood vessel end clamping mechanisms on the slide rail of the longitudinal moving track seat.

[0020] Preferably, the slide rail of the transverse moving track seat is perpendicular to the slide rail of the longitudinal moving track seat.

[0021] Preferably, the steps specifically include the following sub-steps:

[0022] Step 5.1: Install temperature measuring elements and heating elements in the water tank;

[0023] Step 5.2: Connect the heating element to the external liquid circulation module.

[0024] Preferably, the water tank is constructed through the following steps:

[0025] Step 10: Fabricate the thermal insulation material into a cubic trough structure;

[0026] Step 20: A through hole is made on the side of the cubic trough structure for the connecting pipe to be connected to the liquid inlet / outlet port and the external liquid circulation module to pass through;

[0027] Step 30: A limiting groove is provided at the bottom of the cubic groove structure; wherein the limiting groove forms the slide rail of the longitudinal moving track seat.

[0028] Preferably, the step of sliding another of the blood vessel end clamping mechanisms on the slide rail of the longitudinal moving track seat specifically includes the following steps:

[0029] Holes are provided on the side of the cubic groove structure and a sliding groove is provided on the bottom.

[0030] A transmission gear is rotatably connected to the inner sidewall of the cubic groove structure;

[0031] A transmission rack is slidably arranged in the groove, one side of the transmission rack is connected to the other blood vessel end clamping mechanism, and the transmission rack meshes with the transmission gear;

[0032] A rotating wheel is provided on the outer wall of the cubic groove structure, and the rotating wheel is connected to the transmission gear through a rotating shaft passing through the hole.

[0033] Preferably, the following steps may be included after the first step:

[0034] Step 40: A convex glass cover plate is detachably installed on the top of the cubic trough structure.

[0035] The present invention also provides an experimental apparatus, which is constructed using the construction method of the endovascular device application experimental apparatus as described in any one of the above claims, the endovascular device application experimental apparatus comprising:

[0036] A water tank for containing a liquid medium, the water tank being connected to a temperature control module for controlling the temperature of the liquid medium;

[0037] A longitudinally movable track seat is disposed within the water tank;

[0038] A transverse moving track seat is disposed on the longitudinal moving track seat;

[0039] The vascular end clamping mechanism is mounted on the transverse moving track seat and includes two clamping blocks that are fixedly connected and slidably connected to the transverse moving track seat, and a connecting pipe that can be clamped between the two clamping blocks. The end of the connecting pipe is provided with a double-ended bifurcated pipe, which includes an inlet and outlet port for connecting to an external liquid circulation module and an instrument insertion port for instrument insertion.

[0040] The external liquid circulation module is connected to the temperature control module.

[0041] The present invention provides a method for constructing an experimental device for intravascular instrument application. By setting a longitudinally moving track seat in a water tank and connecting two adjustable relative positions of blood vessel end clamping mechanisms on the longitudinally moving track seat, and by setting inlet and outlet ports and instrument insertion ports on the blood vessel end clamping mechanisms, the two blood vessel end clamping mechanisms can clamp both ends of the blood vessel. The inlet and outlet ports allow the blood vessel lumen to be filled with flowing, constant-temperature liquid to simulate the intravascular environment. When conducting instrument application experiments, it is only necessary to insert the instrument through the instrument insertion port. This solves the problem that it is usually difficult for experimenters to open narrow lumens and fix isolated blood vessels in traditional extracorporeal circulation system experimental devices.

[0042] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0043] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0044] Figure 1 A three-dimensional structural schematic diagram of the experimental device for the application of endovascular instruments provided in an embodiment of the present invention;

[0045] Figure 2 A three-dimensional structural schematic diagram of the blood vessel end clamping mechanism provided for an embodiment of the present invention;

[0046] Figure 3 A three-dimensional structural diagram showing the connection between the blood vessel end clamping mechanism and the longitudinal moving track seat provided in an embodiment of the present invention;

[0047] Figure 4 A simplified diagram of the connection structure between the blood vessel end clamping mechanism and the longitudinal moving track seat provided in the embodiments of the present invention.

[0048] Figure Labels

[0049] 1-Vascular end clamping mechanism; 11-Clamping block; 12-Vascular clamp; 13-Lateral moving track seat; 14-Spring; 15-Connecting tube; 16-Double-ended bifurcated tube; 161-Inlet / outlet port; 162-Instrument insertion port;

[0050] 2-Longitudinal moving track seat; 21-Transmission gear; 22-Transmission rack; 23-Rotating wheel; 24-Rotating shaft;

[0051] 3-Water tank; 31-Through hole; 32-Limiting groove;

[0052] 4-Temperature control module. Detailed Implementation

[0053] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0054] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0055] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0056] 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, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0057] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0058] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0059] Please see Figures 1 to 4 This embodiment provides a method for constructing an experimental device for the application of endovascular instruments, comprising the following steps:

[0060] Step 1: Construct two blood vessel end clamping mechanisms 1.

[0061] Step 2: Open a fluid inlet / outlet port 161 and an instrument insertion port 162 on the blood vessel end clamping mechanism 1, and connect the fluid inlet / outlet port 161 to the external fluid circulation module.

[0062] Step 3: Fix and slide the two blood vessel end clamping mechanisms 1 onto the longitudinal moving track seat 2 respectively; or slide both blood vessel end clamping mechanisms 1 onto the longitudinal moving track seat 2.

[0063] Step 4: Connect the longitudinal moving track seat 2 to the bottom of the water tank 3.

[0064] Step 5: Connect water tank 3 to temperature control module 4.

[0065] The two vascular end clamping mechanisms 1 can clamp the two ends of the blood vessel respectively. After clamping, the two vascular end clamping mechanisms 1 can move along the longitudinal moving track seat 2 in a direction that is closer or farther away from each other to adapt to blood vessels of different lengths. The external liquid circulation module can be a peristaltic pump or turbine, etc. The external liquid circulation module can inject or extract constant temperature liquid into the clamped blood vessel cavity through the inlet and outlet ports 161, and adjust the flow rate and temperature of the liquid to simulate the environment inside the blood vessel cavity. The water tank 3 can be filled with constant temperature liquid medium, and the temperature control module 4 can control the temperature of the liquid medium. After the blood vessel is clamped, the blood vessel can be immersed in the liquid medium to simulate the body fluid environment. The water temperature of the constant temperature liquid in the blood vessel cavity and the liquid medium in the water tank 3 can be controlled at about 37°C to fully simulate the internal environment of the human body. When conducting intravascular instrument application experiments, the instrument can be inserted through the instrument insertion port 162 to conduct the experiment. It should be noted that, in order to prevent fluid from flowing out of the inlet / outlet port 161 during intravascular fluid circulation, the instrument insertion port 162 can be designed as an elastic port that can be closed when not inserted. At the same time, for the vascular end where no instrument experiment is required, the adjacent instrument insertion port 162 can be closed using a clamp or other structure.

[0066] The method for constructing the experimental device for intravascular instrument application provided in this embodiment involves setting a longitudinal moving track seat 2 in a water tank 3, and connecting two adjustable relative positions of blood vessel end clamping mechanisms 1 on the longitudinal moving track seat 2. Furthermore, by setting a liquid inlet / outlet port 161 and an instrument insertion port 162 on the blood vessel end clamping mechanism 1, the two blood vessel end clamping mechanisms 1 can clamp both ends of the blood vessel, and the blood vessel lumen is filled with flowing constant temperature liquid through the liquid inlet / outlet port 162 to simulate the intravascular environment. When conducting instrument application experiments, it is only necessary to insert the instrument through the instrument insertion port 162, which solves the problem that it is usually difficult for experimenters to open the narrow lumen and fix the isolated blood vessel in traditional extracorporeal circulation system experimental devices.

[0067] Furthermore, step 1 specifically includes the following sub-steps:

[0068] Step 1.1: Install the vascular clamp 12 on the side of the clamping block 11.

[0069] Step 1.2: Fix and slide the two clamping blocks 11 onto the transverse moving track seat 13 respectively; or slide both clamping blocks 11 onto the transverse moving track seat 13.

[0070] Step 1.3: Connect one end of the spring 14 to the transverse moving track seat 13, and the other end to the clamping block 11 that is slidably connected to the transverse moving track seat 12.

[0071] The spring 14 can push the clamping block 11 connected to it, forcing the two clamping blocks 11 to move closer to each other. In use, the blood vessel clamp 12 can hold the walls of both sides of the blood vessel.

[0072] Further, step 2 specifically includes: setting a double-ended bifurcated pipe 16 at the end of the connecting pipe 15 that can be clamped between two clamping blocks 11, and connecting one end of the double-ended bifurcated pipe 16 to an external liquid circulation module; wherein the end of the double-ended bifurcated pipe 16 connected to the external liquid circulation module forms an inlet / outlet port 161, and the other end of the double-ended bifurcated pipe 16 forms an instrument insertion port 162.

[0073] Specifically, before the experiment, the connecting tube 15 is separated from the clamping block 11. After the two blood vessel clamps 12 hold the walls of the blood vessel on both sides, the two clamping blocks 11 can be moved to move them away from each other, thereby opening the blood vessel opening. Then, the connecting tube 15 is inserted into the blood vessel opening, and the clamping blocks 11 are released. The two clamping blocks 11 then move closer to each other to clamp the connecting tube 15, thus completing the clamping of the blood vessel. After clamping, the external liquid circulation module can be started to circulate and inject constant temperature liquid from the inlet and outlet ports 161.

[0074] Furthermore, the connecting tube 15 can rotate and be clamped between the two clamping blocks 11 to adjust the relative position of the instrument insertion port 162 and the liquid inlet / outlet port 161, so that the instrument can be inserted from the instrument insertion port 162 for experimental operation. When the double-ended bifurcated tube 16 is rotated to vertical, the instrument insertion port 162 can be above the liquid inlet / outlet port 161, which facilitates the insertion of the instrument from the instrument insertion port 162.

[0075] Furthermore, in the embodiments provided in this implementation:

[0076] The two clamping blocks 11 are fixedly connected and slidably connected to the transverse moving track seat 13, respectively. Specifically, one clamping block 11 is fixed to one end of the slide rail of the transverse moving track seat 13; and the other clamping block 11 is slidably set on the slide rail of the transverse moving track seat 13.

[0077] Specifically, sliding the two clamping blocks 11 onto the transverse moving track seat 13 includes: sliding the two clamping blocks 11 onto the slide rail of the transverse moving track seat 13.

[0078] The slide rail of the transverse moving track seat 13 can be a slot opened on the top of the transverse moving track seat 13, and the bottom of the clamping block 11 can be slidably set in the slot.

[0079] Furthermore, in the embodiments provided in this implementation:

[0080] The two vascular end clamping mechanisms 1 are fixedly connected and slidably connected to the longitudinal moving track seat 2, respectively. Specifically, one vascular end clamping mechanism 1 is fixed to one end of the slide rail of the longitudinal moving track seat 2; and the other vascular end clamping mechanism 1 is slidably set on the slide rail of the longitudinal moving track seat 2.

[0081] Specifically, slidingly connecting the two blood vessel end clamping mechanisms 1 to the longitudinal moving track seat 2 includes: slidingly setting the two blood vessel end clamping mechanisms 1 on the slide rail of the longitudinal moving track seat 13.

[0082] Specifically, the structure of the longitudinal moving track seat 2 can be similar to the structure of the transverse moving track seat 13.

[0083] Furthermore, the slide rail of the transverse moving track seat 13 is perpendicular to the slide rail of the longitudinal moving track seat 2, so that the two clamping blocks 11 can move radially along the blood vessel and the two blood vessel end clamping mechanisms 1 can move along the length of the blood vessel.

[0084] Furthermore, step 5 specifically includes the following sub-steps:

[0085] Step 5.1: Install temperature measuring elements and heating elements in the water tank 3 to ensure that the liquid medium in the water tank 3 can be maintained at a suitable temperature to fully simulate body fluids.

[0086] Step 5.2: Connect the heating element to an external liquid circulation module so that the liquid flowing inside the blood vessel can be kept at a constant temperature.

[0087] Furthermore, the water tank 3 is constructed through the following steps:

[0088] Step 10: Make the thermal insulation material into a cubic trough structure to reduce heat loss.

[0089] Step 20: A through hole 31 is made on the side of the cubic trough structure for the connecting pipe to be connected to the inlet / outlet port 161 and the external liquid circulation module to pass through. After the blood vessel is clamped, one end of the connecting pipe can be connected to the inlet / outlet port 161, and the other end can be connected to the external liquid circulation module after passing through the through hole 31.

[0090] Step 30: Set a limiting groove 32 at the bottom of the cubic groove structure; wherein the limiting groove 32 forms the slide rail of the longitudinal moving track seat 2.

[0091] Furthermore, sliding another blood vessel end clamping mechanism 1 onto the slide rail of the longitudinal moving track seat 2 specifically includes the following steps:

[0092] Holes are made on the side of the cubic trough structure and grooves are made at the bottom.

[0093] The transmission gear 21 is rotatably connected to the inner wall of the cubic groove structure.

[0094] A transmission rack 22 is slidably arranged in the groove, and one side of the transmission rack 22 is connected to another blood vessel end clamping mechanism 1, so that the transmission rack 22 meshes with the transmission gear 21.

[0095] A rotating wheel 23 is provided on the outer wall of the cubic groove structure, and the rotating wheel 23 is connected to the transmission gear 21 through the rotating shaft 24 passing through the hole.

[0096] The twisting transmission wheel 23 can drive the transmission gear 21 to rotate, thereby driving the transmission rack 22 to move laterally, and then pulling the lateral moving guide rail seat 13 connected to it to move longitudinally.

[0097] Furthermore, step 30 may be followed by the following steps:

[0098] Step 40: A convex glass cover plate can be detachably installed on the top of the cubic trough structure to magnify the blood vessel image for observation during the experiment.

[0099] This embodiment also provides an experimental device, which is constructed using the construction method of the endovascular device application experimental device as described in any one of the above. The endovascular device application experimental device includes a water tank 3, a longitudinal moving track seat 2, a transverse moving track seat 13, and a blood vessel end clamping mechanism 1.

[0100] The water tank 3 is used to contain the liquid medium, and the water tank 3 is connected to a temperature control module 4 for controlling the temperature of the liquid medium.

[0101] The longitudinal moving track seat 2 is set inside the water tank 3.

[0102] The transverse moving track seat 13 is mounted on the longitudinal moving track seat 2.

[0103] The vascular end clamping mechanism 1 is mounted on the transverse moving track seat 13 and includes two clamping blocks 11 that are fixedly connected and slidably connected to the transverse moving track seat 13, and a connecting pipe 15 that can be clamped between the two clamping blocks 11. The end of the connecting pipe 15 is provided with a double-ended bifurcated pipe 16. The double-ended bifurcated pipe 16 includes an inlet / outlet port 161 for connecting to an external liquid circulation module and an instrument insertion port 162 for inserting instruments.

[0104] The external liquid circulation module is connected to the temperature control module 4.

[0105] Working principle:

[0106] Two vascular end clamping mechanisms 1 can clamp the two ends of the blood vessel respectively. After clamping, the two vascular end clamping mechanisms 1 can move along the longitudinal moving track seat 2 in a direction that is closer or farther away from each other to adapt to blood vessels of different lengths. The external liquid circulation module can be a peristaltic pump or turbine, etc. The external liquid circulation module can inject or extract constant temperature liquid into the clamped blood vessel cavity through the inlet and outlet ports 161, and adjust the flow rate and temperature of the liquid to simulate the environment inside the blood vessel cavity. The water tank 3 can be filled with a constant temperature liquid medium, and the temperature control module 4 can control the temperature of the liquid medium. After the blood vessel is clamped, the blood vessel can be immersed in the liquid medium to simulate the body fluid environment. The temperature of the constant temperature liquid in the blood vessel cavity and the liquid medium in the water tank 3 can be controlled at about 37°C to fully simulate the internal environment of the human body. When conducting intravascular instrument application experiments, the instrument can be inserted through the instrument insertion port 162 to conduct the experiment.

[0107] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0108] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other occasions without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A method for constructing an experimental device for the application of endovascular instruments, characterized in that, Includes the following steps: S1: Construct two vascular end clamping mechanisms (1); S2: A fluid inlet / outlet port (161) and an instrument insertion port (162) are provided on the blood vessel end clamping mechanism (1), and the fluid inlet / outlet port (161) is connected to an external fluid circulation module; S3: Fix and slide the two blood vessel end clamping mechanisms (1) on the longitudinal moving track seat (2) respectively; or slide both of the blood vessel end clamping mechanisms (1) on the longitudinal moving track seat (2); S4: Connect the longitudinal moving track seat (2) to the bottom of the water tank (3); S5: Connect the water tank (3) to the temperature control module (4).

2. The method for constructing the experimental device for the application of endovascular instruments according to claim 1, characterized in that, Step S1 specifically includes the following sub-steps: S1.1: Install a vascular clamp (12) on the side of the clamping block (11); S1.2: Fix and slide the two clamping blocks (11) on the transverse moving track seat (13) respectively; or slide both of the clamping blocks (11) on the transverse moving track seat (13); S1.3: Connect one end of the spring (14) to the transverse moving track seat (13) and the other end to the clamping block (11) that is slidably connected to the transverse moving track seat (12).

3. The method for constructing the experimental device for the application of endovascular instruments according to claim 2, characterized in that, Step S2 specifically includes: setting a double-ended bifurcated pipe (16) at the end of the connecting pipe (15) that can be clamped between the two clamping blocks (11), and connecting one end of the double-ended bifurcated pipe (16) to the external liquid circulation module; wherein the end of the double-ended bifurcated pipe (16) connected to the external liquid circulation module forms the liquid inlet / outlet port (161), and the other end of the double-ended bifurcated pipe (16) forms the instrument insertion port (162).

4. The method for constructing the experimental device for the application of endovascular instruments according to claim 3, characterized in that, The connecting tube (15) can rotate and be clamped between the two clamping blocks (11) to adjust the relative position of the instrument insertion port (162) and the inlet / outlet port (161).

5. The method for constructing the experimental device for the application of endovascular instruments according to claim 2, characterized in that: The specific steps of fixing and sliding the two clamping blocks (11) on the transverse moving track seat (13) include: fixing one clamping block (11) to one end of the slide rail of the transverse moving track seat (13); and sliding the other clamping block (11) on the slide rail of the transverse moving track seat (13). The step of slidingly connecting the two clamping blocks (11) on the transverse moving track seat (13) specifically includes: sliding the two clamping blocks (11) on the slide rail of the transverse moving track seat (13).

6. The method for constructing the experimental device for the application of endovascular instruments according to claim 5, characterized in that: The specific steps of fixing and sliding the two blood vessel end clamping mechanisms (1) on the longitudinal moving track seat (2) include: fixing one of the blood vessel end clamping mechanisms (1) to one end of the slide rail of the longitudinal moving track seat (2); and sliding the other blood vessel end clamping mechanism (1) on the slide rail of the longitudinal moving track seat (2). The step of slidingly connecting the two blood vessel end clamping mechanisms (1) to the longitudinal moving track seat (2) specifically includes: slidingly setting the two blood vessel end clamping mechanisms (1) on the slide rail of the longitudinal moving track seat (13).

7. The method for constructing the experimental device for the application of endovascular instruments according to claim 6, characterized in that, The slide rail of the transverse moving track seat (13) is perpendicular to the slide rail of the longitudinal moving track seat (2).

8. The method for constructing the experimental device for the application of endovascular instruments according to claim 1, characterized in that, Step S5 specifically includes the following sub-steps: S5.1: A temperature measuring element and a heating element are installed in the water tank (3); S5.2: Connect the heating element to the external liquid circulation module.

9. The method for constructing the experimental device for the application of endovascular instruments according to claim 6, characterized in that, The water tank (3) is constructed by the following steps: S10: The thermal insulation material is made into a cubic groove structure; S20: A through hole (31) is opened on the side of the cubic trough structure for the connecting pipe to be connected to the liquid inlet / outlet port (161) and the external liquid circulation module to pass through; S30: A limiting groove (32) is provided at the bottom of the cubic groove structure; wherein the limiting groove (32) forms the slide rail of the longitudinal moving track seat (2).

10. The method for constructing the experimental device for the application of endovascular instruments according to claim 9, characterized in that, The step of sliding another of the blood vessel end clamping mechanisms (1) on the slide rail of the longitudinal moving track seat (2) specifically includes the following steps: Holes are provided on the side of the cubic groove structure and a sliding groove is provided on the bottom. A transmission gear (21) is rotatably connected to the inner sidewall of the cubic groove structure; A transmission rack (22) is slidably arranged in the groove, and one side of the transmission rack (22) is connected to the other blood vessel end clamping mechanism (1), and the transmission rack (22) meshes with the transmission gear (21); A rotating wheel (23) is provided on the outer wall of the cubic groove structure, and the rotating wheel (23) is connected to the transmission gear (21) through a rotating shaft (24) passing through the hole.

11. The method for constructing the experimental device for the application of endovascular instruments according to claim 9, characterized in that, Step S30 may be followed by the following steps: S40: A convex glass cover plate is detachably installed on the top of the cubic trough structure.

12. An experimental apparatus, characterized in that, The experimental device is constructed using the method described in any one of claims 1 to 11, wherein the experimental device comprises: A water tank (3) is used to contain a liquid medium, and the water tank (3) is connected to a temperature control module (4) for controlling the temperature of the liquid medium; A longitudinally movable track seat (2) is installed inside the water tank (3); A transverse moving track seat (13) is disposed on the longitudinal moving track seat (2); The vascular end clamping mechanism (1) is set on the transverse moving track seat (13) and includes two clamping blocks (11) that are fixedly connected and slidably connected to the transverse moving track seat (13), and a connecting pipe (15) that can be clamped between the two clamping blocks (11). The end of the connecting pipe (15) is provided with a double-ended bifurcated pipe (16). The double-ended bifurcated pipe (16) includes an inlet and outlet port (161) for connecting to an external liquid circulation module and an instrument insertion port (162) for inserting instruments. The external liquid circulation module is connected to the temperature control module (4).

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