Intelligent cardiovascular hemodynamic simulation device

Abstract

The present invention relates to the technical field of vascular model instruments. Disclosed in the present invention is an intelligent cardiovascular hemodynamic simulation device. The following solution is provided: the intelligent cardiovascular hemodynamic simulation device comprises a vascular flow model, wherein a hemodynamic controller is provided at the bottom of the vascular flow model, and a model display stand is fixedly connected to the bottom surface of the vascular flow model; and the vascular flow model comprises a silicone base trunk. In the technical solution of the present invention, the display height and angle of the model are adjusted by means of the model display stand, such that when the model is observed and learned, an observer can obtain a better observation field of view; moreover, the implantation of a latex vascular system into a transparent silicone human body model can allow the observer to more clearly observe a blood flow process, and to simultaneously use the hemodynamic controller to control the flow velocity and flow rate of liquid in blood vessels, thereby intelligently simulating blood flow situations in the blood vessels under different exercise intensities.

Description

An intelligent cardiovascular hemodynamic simulation device Technical Field

[0001] This invention relates to the field of vascular model device technology, specifically to an intelligent cardiovascular hemodynamic simulation device. Background Technology

[0002] Cardiovascular hemodynamic simulation devices, also known as extracorporeal circulatory simulation systems, are experimental platforms that simulate the hemodynamic state of the human circulatory system. They are widely used for in vitro performance evaluation of cardiovascular artificial organs such as ventricular assist devices and artificial valves, and for research on hemodynamic responses in biomechanical systems. They can simulate the hemodynamic characteristics of the human body under different physiological states, including health, exercise, and heart failure. With the continuous development and maturation of fluid dynamics, simulation systems are mainly based on a combination of numerical simulation technology using fluid computation and CAD or 3D digital imaging technology. The simulation effect is virtual, which is not directly accessible to learners. Physical simulation devices, on the other hand, suffer from poor simulation effects and insufficient intelligence, resulting in a limited range of blood flow patterns and an inability to accurately simulate the blood flow states of the human body under different physiological states such as health, exercise, and heart failure. Summary of the Invention

[0003] In view of the above-mentioned background technology, the current cardiovascular hemodynamic models have shortcomings such as poor display effect and insufficient simulation intelligence. Therefore, a technical solution of intelligent cardiovascular hemodynamic simulation device is provided.

[0004] It includes a blood vessel flow model, a hemodynamic controller is provided at the bottom of the blood vessel flow model, and a model display bracket is fixedly connected to the bottom surface of the blood vessel flow model.

[0005] The vascular flow model includes a silicone base trunk, a silicone top trunk hinged to the right side of the upper surface of the silicone base trunk, and a latex simulated blood vessel embedded and filled between the silicone base trunk and the silicone top trunk. The rear end of the latex simulated blood vessel is connected to a reflux tube, and the front end of the latex simulated blood vessel is connected to a drain tube. The ends of the reflux tube and the drain tube that are close to each other are respectively connected to the inlet and outlet ports of the hemodynamic controller.

[0006] The hemodynamic controller includes a base shell, a rotor rotatably connected to the inner cavity of the base shell, and three cylindrical protrusions fixed in a ring array on the outer ring of the rotor. A flexible tube is wound around the outer surface of each cylindrical protrusion. A hollow outer shell is fixed to the upper end face of the base shell. A driven gear is rotatably mounted at the center of the bottom surface of the inner cavity of the hollow outer shell. A drive gear located next to the driven gear is rotatably connected to the bottom surface of the inner cavity of the hollow outer shell, and the driven gear and the drive gear mesh with each other. A servo motor is fixedly connected to the top surface of the hollow outer shell. The output shaft of the servo motor passes through the interior of the hollow outer shell and is fixedly connected to the top of the drive gear.

[0007] The model display support includes two support beams, four hollow columns fixed at the four corners of the upper surface of the support beams, and movable columns inserted into the inner cavity of the hollow columns. A longitudinal beam is hinged to the top of each of the movable columns on the left and right sides. Bottom and top crossbeams are fixed to each other between the front and rear movable columns. An adjusting screw is rotatably driven through the bottom and top crossbeams. A wheel is screwed onto the section of the adjusting screw at the top of the bottom crossbeam.

[0008] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: a simulated blood vessel placement groove for embedding latex simulated blood vessels is provided on the side surface of the silicone bottom torso and the silicone top torso that are close to each other, and the bottom surface of the latex simulated blood vessel is fixedly connected to the inner wall of the simulated blood vessel placement groove inside the silicone bottom torso.

[0009] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: the front and rear ends of the silicone bottom torso and the silicone top torso are provided with through holes for the reflux pipe and the drain pipe to pass through, and the reflux pipe and the drain pipe are located below the silicone bottom torso.

[0010] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: both ends of the hose are equipped with connectors, with the front connector being the outlet and the rear connector being the inlet; the end of the return tube away from the latex simulated blood vessel is connected to the front connector, and the end of the drain tube away from the latex simulated blood vessel is connected to the rear connector.

[0011] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: the bottom surface of the bottom shell is fixedly connected to the top surface of the longitudinal beam, the bottom end of the rotor is rotatably connected to the bottom surface of the inner cavity of the bottom shell, and the top end of the rotor penetrates into the inner cavity of the hollow shell and is fixedly connected to the bottom end of the driven gear.

[0012] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: two through holes are opened on the right side surface of the bottom shell for the hose and the nozzle to pass through, and the nozzle is engaged inside the through hole, and the inner surface of the hose is in contact with the outer surface of the cylindrical protrusion.

[0013] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: a base plate is fixedly connected to the top surface of the longitudinal beam, a support column is fixed to the top of the base plate, and the top of the support column is fixedly connected to the bottom surface of the silicone bottom torso.

[0014] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: universal rollers are installed at the four corners of the bottom surface of the support beam by screws.

[0015] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: both the top beam and the bottom beam have round holes for the adjustment screw to pass through.

[0016] In the above-mentioned technical solution of an intelligent cardiovascular hemodynamic simulation device, preferably: the bottom end face of the rotating wheel is in contact with the upper surface of the bottom crossbeam, and the interior of the rotating wheel is provided with a threaded hole that matches the outer thread of the adjusting screw.

[0017] As can be seen from the above technical solution, the intelligent cardiovascular hemodynamic simulation device provided by the present invention has the following beneficial effects compared with the prior art:

[0018] In the technical solution of this invention, the display height and angle of the model are adjusted by the model display bracket, so that the observer can obtain a better field of view when the model is being observed and learned from; moreover, by implanting a vascular system made of latex material inside the transparent silicone human body model, the observer can observe the blood flow process more clearly, and at the same time, the blood flow dynamics controller is used to control the flow rate and volume of the liquid in the blood vessels, intelligently simulating the blood flow in the blood vessels under different exercise levels. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of a cardiovascular blood flow simulation demonstration device;

[0021] Figure 2 is a schematic diagram of the blood vessel flow model;

[0022] Figure 3 is a schematic diagram of the hemodynamic controller;

[0023] Figure 4 is a schematic diagram of the model display stand.

[0024] The correspondence between the components in Figures 1-4 is as follows:

[0025] 1. Blood vessel flow model; 11. Silicone bottom trunk; 12. Simulated blood vessel placement slot; 13. Return tube; 14. Latex simulated blood vessel; 15. Silicone top trunk; 16. Drain tube; 2. Hemodynamic controller; 21. Bottom shell; 22. Tube; 23. Nozzle; 24. Hollow outer shell; 25. Drive gear; 26. Servo motor; 27. Driven gear; 28. Cylindrical protrusion; 29. ​​Rotor; 3. Model display stand; 31. Support beam; 32. Hollow column; 33. Bottom crossbeam; 34. Movable column; 35. Longitudinal beam; 36. Top crossbeam; 37. Rotary wheel; 38. Adjusting screw; 39. Support column; 310. Base plate. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] To provide a clearer explanation and illustration of the technical solution and implementation of the present invention, the following describes preferred embodiments of the technical solution of the present invention.

[0028] Example; A preferred technical solution for an intelligent cardiovascular hemodynamics simulation device:

[0029] Referring to Figure 1 in the instruction manual: it includes a blood vessel flow model 1, a hemodynamic controller 2 is provided at the bottom of the blood vessel flow model 1, and a model display bracket 3 is fixedly connected to the bottom surface of the blood vessel flow model 1.

[0030] Referring to Figure 2 in the instruction manual: the vascular flow model 1 includes a silicone bottom trunk 11, a silicone top trunk 15 hinged to the right side of the upper surface of the silicone bottom trunk 11, and a latex simulated blood vessel 14 embedded and filled between the silicone bottom trunk 11 and the silicone top trunk 15. The rear end of the latex simulated blood vessel 14 is connected to a return pipe 13, and the front end of the latex simulated blood vessel 14 is connected to a drain pipe 16. The ends of the return pipe 13 and the drain pipe 16 that are close to each other are respectively connected to the inlet and outlet ports of the hemodynamic controller 2.

[0031] Referring to Figure 3 in the instruction manual: the hemodynamic controller 2 includes a bottom shell 21, a rotor 29 rotatably connected to the inner cavity of the bottom shell 21, and three cylindrical protrusions 28 fixed in a ring array on the outer ring of the rotor 29. A flexible tube 22 is wound around the outer surface of the cylindrical protrusions 28. A hollow shell 24 is fixed to the upper end face of the bottom shell 21. A driven gear 27 is rotatably disposed at the center of the bottom surface of the inner cavity of the hollow shell 24. A drive gear 25 located on the side of the driven gear 27 is rotatably connected to the bottom surface of the inner cavity of the hollow shell 24, and the driven gear 27 and the drive gear 25 mesh with each other for transmission. A servo motor 26 is fixedly connected to the top surface of the hollow shell 24. The output shaft of the servo motor 26 passes through the interior of the hollow shell 24 and is fixedly connected to the top of the drive gear 25.

[0032] Referring to Figure 4 in the instruction manual: The model display bracket 3 includes two support beams 31, four hollow columns 32 fixed at the four corners of the upper surface of the support beams 31, and movable columns 34 inserted into the inner cavity of the hollow columns 32. A longitudinal beam 35 is hinged to the top of the movable columns 34 on the left and right sides respectively. A bottom crossbeam 33 and a top crossbeam 36 are fixed to each other between the front and rear movable columns 34 respectively. An adjusting screw 38 is rotatably driven between the bottom crossbeam 33 and the top crossbeam 36. A rotating wheel 37 is screwed onto the section of the adjusting screw 38 at the top of the bottom crossbeam 33.

[0033] Referring to Figure 2 in the instruction manual: On the adjacent surfaces of the silicone bottom torso 11 and the silicone top torso 15, there are simulated blood vessel placement grooves 12 for the latex simulated blood vessels 14 to be embedded. The bottom surface of the latex simulated blood vessels 14 is fixedly connected to the inner wall of the simulated blood vessel placement groove 12 inside the silicone bottom torso 11. The front and rear end faces of the silicone bottom torso 11 and the silicone top torso 15 are provided with through holes for the return pipe 13 and the drain pipe 16 to pass through. The return pipe 13 and the drain pipe 16 are located below the silicone bottom torso 11.

[0034] Referring to Figure 3 in the instruction manual: both ends of the hose 22 are equipped with connectors 23, with the front connector 23 being the outlet and the rear connector 23 being the inlet. The end of the return pipe 13 away from the latex simulated blood vessel 14 is connected to the front connector 23, and the end of the drain pipe 16 away from the latex simulated blood vessel 14 is connected to the rear connector 23. The bottom surface of the bottom shell 21 is fixedly connected to the top surface of the longitudinal beam 35. The bottom end of the rotor 29 is rotatably connected to the bottom surface of the inner cavity of the bottom shell 21. The top end of the rotor 29 penetrates into the inner cavity of the hollow shell 24 and is fixedly connected to the bottom end of the driven gear 27. Two through holes are opened on the right side surface of the bottom shell 21 for the hose 22 and connectors 23 to pass through, and the connectors 23 are snapped into the through holes. The inner surface of the hose 22 is in contact with the outer surface of the cylindrical protrusion 28.

[0035] Referring to Figure 4 in the instruction manual: A base plate 310 is fixedly connected to the top surface of the longitudinal beam 35, and a support column 39 is fixed to the top of the base plate 310. The top of the support column 39 is fixedly connected to the bottom surface of the silicone bottom body 11. Universal rollers are installed at the four corners of the bottom surface of the support beam 31 by screws. The top beam 36 and the bottom beam 33 are both provided with round holes through which the adjusting screw 38 passes. The bottom end face of the rotating wheel 37 contacts the upper surface of the bottom beam 33. The rotating wheel 37 is provided with a threaded hole that matches the outer thread of the adjusting screw 38.

[0036] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows:

[0037] A brightly colored liquid, acting as blood, is injected into the latex-like simulated blood vessel 14, the return pipe 13, and the drain pipe 16. The concentration and density of this liquid are comparable to normal blood. A servo motor 26, controlled by a controller, determines the speed and flow rate of the liquid within the latex-like simulated blood vessel 14. The output shaft of the servo motor 26 drives the drive gear 25 to rotate, and the meshing between the drive gear 25 and the driven gear 27 drives the rotor 29 to rotate axially. This forces the cylindrical protrusion 28 to continuously squeeze the tubing 22, circulating the liquid inside the latex-like simulated blood vessel 14 in a peristaltic manner to demonstrate blood flow. When a certain pitch angle is required to display the blood vessel flow model 1, rotating the rear wheel 37 raises or lowers the adjusting screws 38 on both sides, thereby raising or lowering the longitudinal beam 35 on both sides, allowing the blood vessel flow model 1 to have a pitch angle for learners to observe the liquid flow inside.

Claims

1. An intelligent cardiovascular hemodynamic simulation device, comprising a vascular flow model (1), characterized in that: The bottom of the blood vessel flow model (1) is provided with a hemodynamic controller (2), and the bottom surface of the blood vessel flow model (1) is fixedly connected with a model display bracket (3). The vascular flow model (1) includes a silicone bottom trunk (11), a silicone top trunk (15) hinged to the right side of the upper surface of the silicone bottom trunk (11), and a latex simulated blood vessel (14) embedded and filled between the silicone bottom trunk (11) and the silicone top trunk (15). The rear end of the latex simulated blood vessel (14) is connected to a return tube (13), and the front end of the latex simulated blood vessel (14) is connected to a drain tube (16). The ends of the return tube (13) and the drain tube (16) that are close to each other are respectively connected to the inlet and outlet ports of the hemodynamic controller (2). The hemodynamic controller (2) includes a bottom shell (21), a rotor (29) rotatably connected to the inner cavity of the bottom shell (21), and three cylindrical protrusions (28) fixed in a ring array on the outer ring of the rotor (29). A flexible tube (22) is wound around the outer surface of the cylindrical protrusions (28). A hollow shell (24) is fixed to the upper end face of the bottom shell (21). A driven gear (27) is rotatably arranged at the center of the bottom surface of the inner cavity of the hollow shell (24). A drive gear (25) located on the side of the driven gear (27) is rotatably connected to the bottom surface of the inner cavity of the hollow shell (24), and the driven gear (27) and the drive gear (25) mesh with each other. A servo motor (26) is fixedly connected to the top surface of the hollow shell (24). The output shaft of the servo motor (26) passes through the interior of the hollow shell (24) and is fixedly connected to the top of the drive gear (25). The model display bracket (3) includes two support beams (31), four hollow columns (32) fixed at the four corners of the upper surface of the support beams (31), and movable columns (34) inserted into the cavity of the hollow columns (32). A longitudinal beam (35) is hinged to the top of the movable columns (34) on the left and right sides respectively. The front and rear movable columns (34) are respectively fixed with a bottom crossbeam (33) and a top crossbeam (36). An adjusting screw (38) rotates through the bottom crossbeam (33) and the top crossbeam (36). A rotating wheel (37) is screwed on the section of the adjusting screw (38) at the top of the bottom crossbeam (33).

2. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: The silicone bottom torso (11) and the silicone top torso (15) are each provided with a simulated blood vessel placement groove (12) for embedding the latex simulated blood vessel (14) on their respective adjacent surfaces. The bottom surface of the latex simulated blood vessel (14) is fixedly connected to the inner wall of the simulated blood vessel placement groove (12) inside the silicone bottom torso (11).

3. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: The front and rear ends of the silicone bottom body (11) and the silicone top body (15) are provided with through holes for the reflux pipe (13) and the drain pipe (16) to pass through. The reflux pipe (13) and the drain pipe (16) are located below the silicone bottom body (11).

4. The intelligent cardiovascular hemodynamic simulation device according to claim 1, characterized in that: The hose (22) is equipped with connectors (23) at both the front and rear ends. The front connector (23) is the outlet and the rear connector (23) is the inlet. The end of the return pipe (13) away from the latex simulated blood vessel (14) is connected to the front connector (23), and the end of the drain pipe (16) away from the latex simulated blood vessel (14) is connected to the rear connector (23).

5. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: The bottom surface of the bottom shell (21) is fixedly connected to the top surface of the longitudinal beam (35), the bottom end of the rotor (29) is rotatably connected to the bottom surface of the inner cavity of the bottom shell (21), and the top end of the rotor (29) penetrates into the inner cavity of the hollow shell (24) and is fixedly connected to the bottom end of the driven gear (27).

6. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: The right side surface of the bottom shell (21) has two through holes for the hose (22) and the nozzle (23) to pass through, and the nozzle (23) is engaged inside the through holes. The inner surface of the hose (22) is in contact with the outer surface of the cylindrical protrusion (28).

7. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: The top surface of the longitudinal beam (35) is fixedly connected to the base plate (310), and the top of the base plate (310) is fixedly connected to the support column (39). The top of the support column (39) is fixedly connected to the bottom surface of the silicone bottom torso (11).

8. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: The bottom surface of the support beam (31) is equipped with universal rollers at the four corners by screws.

9. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: Both the top crossbeam (36) and the bottom crossbeam (33) have round holes through which the adjusting screw (38) passes.

10. The intelligent cardiovascular hemodynamics simulation device according to claim 1, characterized in that: The bottom end face of the wheel (37) is in contact with the upper surface of the bottom crossbeam (33), and the wheel (37) has a threaded hole inside that is adapted to the outer thread of the adjusting screw (38).

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