Vascular simulation device with physiological properties

Abstract

The application discloses a blood vessel simulation device with physiological characteristics, comprising a base, a driving part installed on one side of the base extending in a transverse direction, a first support frame connected with the driving part, so that the first support frame moves linearly back and forth in the transverse direction under the driving of the driving part, a second support frame installed on the base and oppositely arranged with the first support frame, and a contraction part with two ends connected with the first support frame and the second support frame respectively, the contraction part being configured as a column body which shrinks or expands in a radial direction during being pressed or stretched in an axial direction along with the first support frame, a blood vessel sleeve being arranged outside the contraction part to shrink or expand along with the contraction part to simulate the physiological characteristics of the contraction and expansion of the blood vessel.

Description

TECHNICAL FIELD

[0001] At least one embodiment of the present application relates to the field of surgical training and simulation of human body simulation technology, and in particular to a blood vessel simulation device with physiological characteristics. BACKGROUND

[0002] Human cardiovascular system has always been one of the hotspots of medical research and teaching. With the development of medical technology, the number of hospitals carrying out cardiac surgery, the amount of cardiac surgery, and the proportion of large vessel surgery in cardiac surgery are increasing.

[0003] In order to study the human cardiovascular system, researchers usually use traditional medical research and teaching methods of human vascular specimens. However, using human vascular specimens to study the human cardiovascular system usually has the problem that static human vascular specimens cannot provide information about human vascular movement.

[0004] In order to overcome the defects of human vascular specimens in the process of human cardiovascular research, animal (pig, dog, etc.) live specimens are usually used for human cardiovascular research, but in many cases, animal live specimens cannot bring researchers and medical school students the intuitive understanding and understanding that can be obtained by using human tissue organs. Further, due to the difference between animal physiology and human physiology, the limitations of animal experiments, and the individual differences of humans, a study often requires a large amount of experimental data, which consumes a lot of manpower and resources. In addition, due to the limitations of equipment and technology, and the constraints of ethics and morals, some experiments cannot be carried out in vivo.

[0005] Further, in order to overcome the defects of human vascular specimens and animal live specimens in the process of human cardiovascular research, the prior art uses simulated blood vessels to study the human cardiovascular system, but the power components of the prior art blood vessel simulation device with physiological characteristics are located outside the simulated blood vessel, the power components hold the simulated blood vessel, and the entire simulated blood vessel is pulsated. However, the essence of blood vessel pulsation is the expansion of blood vessels caused by the ejection of the heart to the entire body artery when the heart contracts, and the contraction of blood vessels caused by slow blood flow when the heart relaxes, which is the expansion and contraction of the blood vessel wall. Therefore, the essence of blood vessel movement should be inside the blood vessel. Therefore, the existing blood vessel simulation device with physiological characteristics does not fully meet the essence of blood vessel pulsation. SUMMARY

[0006] Therefore, embodiments of the present application provide a blood vessel simulation device with physiological characteristics, which is configured as a column that shrinks or expands in the radial direction, and a simulated blood vessel is sleeved outside the shrinking part to simulate the physiological characteristics of blood vessel shrinkage and expansion.

[0007] According to an embodiment of the present application, a blood vessel simulation device with physiological characteristics is provided, comprising: a base; a driving part installed on one side of the base extending in a transverse direction; a first support frame connected with the driving part, so that the first support frame moves linearly back and forth in the transverse direction under the driving of the driving part; a second support frame installed on the base and arranged opposite to the first support frame; and a contraction part with two ends connected with the first support frame and the second support frame respectively, the contraction part is configured as a column that shrinks or expands in a radial direction during being pressed or stretched in an axial direction along with the first support frame, and a blood vessel sleeve is arranged outside the contraction part to shrink or expand along with the contraction part.

[0008] According to an embodiment of the present application, the contraction part comprises: a telescopic column comprising a plurality of annular rings connected in sequence and integrally formed in the axial direction, each of the annular rings is surrounded by a plurality of ring structures in the shape of hexagons concave in the axial direction connected in sequence, and each of the ring structures is configured to protrude outward in the radial direction of the annular ring; and two connecting ends connected with two ends of the telescopic column respectively and installed on the first support frame and the second support frame, so that the telescopic column is pressed or stretched in the axial direction under the driving of the first support frame.

[0009] According to an embodiment of the present application, each of the ring structures comprises: two frames connected with each other, each of the frames comprises two elastic arms and a base connected with first ends of the two elastic arms, second ends of the two elastic arms are integrally connected with second ends of the two elastic arms of the other frame respectively; and a connecting column extending outward in the axial direction from connecting positions of two opposite elastic arms of the two frames, two adjacent annular rings in the axial direction are combined through the connecting column.

[0010] According to an embodiment of the present application, an included angle γ of the two frames in the circumferential direction is 120°-140°, preferably 130°, so that each of the ring structures can be elastically deformed in the radial direction; an included angle α between each of the elastic arms and the base is 60°-70°, preferably 65°.

[0011] According to an embodiment of the present application, each of the connecting ends comprises: a substantially circular connecting disc; a connecting rod vertically extending from a center of a first side of the connecting disc and configured to be connected with the first support frame or the second support frame; and a plurality of connecting claws vertically extending at an edge of a second side opposite to the first side of the connecting disc and integrally connected with a plurality of the connecting columns respectively.

[0012] According to the embodiment of the present application, the base comprises a base body and a first baffle and a second baffle arranged on both sides of the base body extending in the transverse direction, the second support frame is connected with the second baffle, the driving part comprises a motor base, a first side wall of the motor base is connected with the first baffle, and a motor is installed on the first side wall of the motor base, an output end of the motor is connected with the first support frame to drive the first support frame to move linearly back and forth in the transverse direction; preferably, the output end of the motor is arranged in parallel with a second side wall of the motor base, and the interval between the output end of the motor and the second side wall of the motor base is 6-10 mm.

[0013] According to the embodiment of the present application, the driving part further comprises a plug rod, one end of the plug rod is connected with the first side wall of the motor base, the other end of the plug rod extends from the first support frame and is connected with the second side wall of the motor base, and a limiting block is sleeved on the outside of the plug rod close to the first side wall of the motor base to limit the maximum moving amount of the first support frame moving back and forth in the transverse direction.

[0014] According to the embodiment of the present application, the blood vessel simulation device further comprises a controller connected with the motor to control the output frequency of the motor to control the squeezing and stretching frequency of the contraction part.

[0015] According to the embodiment of the present application, the base body is further provided with a display screen for displaying the input value of the number of simulated blood vessel contractions per unit time and transmitting a signal to the controller on the side wall close to the contraction part in the longitudinal direction, so as to control the output frequency of the motor through the controller; preferably, the motor is a voice coil motor.

[0016] According to the embodiment of the present application, the blood vessel simulation device further comprises a shadowless lamp installed on the side of the base body away from the contraction part in the longitudinal direction.

[0017] According to the blood vessel simulation device with physiological characteristics according to the above-mentioned embodiments of the present application, the contraction part is configured as a column body that shrinks or expands in the radial direction, and the simulated blood vessel is sleeved on the outside of the contraction part to simulate the physiological characteristics of blood vessel shrinkage and expansion. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the first view angle of the blood vessel simulation device with physiological characteristics of the present application;

[0019] Figure 2 is a perspective view of the second view angle of the blood vessel simulation device with physiological characteristics of the present application;

[0020] Figure 3 is Figure 1A left view of the physiological characteristic blood vessel simulation device of the present application is shown.

[0021] Figure 4 is Figure 2 A top view of the physiological characteristic blood vessel simulation device of the present application is shown.

[0022] Figure 5 is a three-dimensional assembly schematic diagram between the base, the driving part and the first support frame;

[0023] Figure 6 is a three-dimensional schematic diagram of the contraction part;

[0024] Figure 7 is a partial enlarged view of the contraction part;

[0025] Figure 8 is a three-dimensional schematic diagram of the circular ring in the telescopic column; and

[0026] Figure 9 is a three-dimensional schematic diagram of the ring structure in the circular ring.

[0027] In the figure:

[0028] 1 - base: 11 - base; 12 - first baffle; 13 - second baffle;

[0029] 2 - driving part;

[0030] 21 - motor base; 211 - first side wall; 212 - second side wall;

[0031] 22 - motor; 221 - output end;

[0032] 23 - insertion rod;

[0033] 24 - limiting block;

[0034] 3 - first support frame;

[0035] 4 - second support frame;

[0036] 5 - contraction part;

[0037] 51 - telescopic column;

[0038] 511 - circular ring;

[0039] 512 - ring structure;

[0040] 5121 - frame; 51211 - elastic arm; 51212 - first end; 51213 - second end; 51214 - base;

[0041] 5122 - connecting column;

[0042] 52 - connecting end;

[0043] 521-Connecting plate; 5211-First side; 5212-Second side;

[0044] 522 - Connecting rod;

[0045] 523 - Connecting claw;

[0046] IB231733

[0047] 6-Shadowless lamp;

[0048] 7- Display screen. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0050] According to one aspect of the inventive concept of the present invention, a vascular simulation device with physiological characteristics is provided, comprising: a base; a driving part installed on one side of the base extending in a transverse direction; a first support frame connected to the driving part, such that the first support frame reciprocates linearly in a transverse direction under the drive of the driving part; a second support frame installed on the base and disposed opposite to the first support frame; and a contraction part connected at both ends to the first support frame and the second support frame respectively, the contraction part being configured as a column that contracts or expands in a radial direction during the process of being squeezed or stretched in the axial direction with the first support frame, and a simulated blood vessel is sleeved on the outside of the contraction part to contract or expand with the contraction part.

[0051] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the blood vessel simulation device with physiological characteristics according to the present invention.

[0052] According to an exemplary embodiment of the present invention, please refer to Figure 1 A vascular simulation device with physiological characteristics is provided, comprising a base 1, a drive unit 2, a first support frame 3, a second support frame 4, and a contraction unit 5. The drive unit 2 is mounted on one side of the base 1 extending laterally. The first support frame 3 is connected to the drive unit 2, causing it to reciprocate linearly in the lateral direction under the drive of the drive unit 2. The second support frame 4 is mounted on the base 1 and is positioned opposite to the first support frame 3. The contraction unit 5 is connected at both ends to the first support frame 3 and the second support frame 4, respectively. The contraction unit 5 is configured as a column that contracts or expands radially during axial compression or stretching with the first support frame 3. A simulated blood vessel is fitted over the outside of the contraction unit 5 to contract or expand with it.

[0053] In the embodiment, the contraction part 5 is configured as a cylinder which can contract or expand in the radial direction, and the simulation blood vessel is sleeved outside the contraction part 5 to simulate the physiological characteristics of the contraction and expansion of the blood vessel.

[0054] It should be noted that in the embodiment, the simulation blood vessel is a soft silicone tube, and the simulation blood vessel is in interference fit with the contraction part 5. The length of the contraction part 5 in the axial direction is greater than the length of the simulation blood vessel in the axial direction. The two ends of the contraction part 5 are respectively detachably connected with the first support frame 3 and the second support frame 4, so as to facilitate replacement of the contraction part 5 in the blood vessel simulation device and facilitate rotation of the contraction part 5 around the axial direction of the contraction part 5 to adjust different angles.

[0055] Figure 2 is a perspective view of a second view angle of the blood vessel simulation device with physiological characteristics of the present application; Figure 6 is a perspective view of the contraction part; Figure 7 is a partial enlarged view of the contraction part; Figure 8 is a perspective view of the circular ring in the telescopic column.

[0056] In some example embodiments, with reference to Figure 2 and Figure 6-8 , the contraction part 5 includes a telescopic column 51 and two connecting ends 52. The telescopic column 51 includes a plurality of circular rings 511 connected in sequence and integrally formed in the axial direction, each circular ring 511 is surrounded by a plurality of annular structures 512 shaped as an inwardly concave hexagon in the axial direction and connected in sequence, and each annular structure 512 is configured to protrude outwardly in the radial direction of the circular ring 511. The two connecting ends 52 are respectively connected with the two ends of the telescopic column 51 and are installed on the first support frame 3 and the second support frame 4, so that the telescopic column 51 is extruded or stretched in the axial direction under the drive of the first support frame 3.

[0057] It should be noted that in the embodiment, the annular structure 512 shaped as an inwardly concave hexagon forms a negative Poisson's ratio structure which has special mechanical properties. The circular ring 511 surrounded by a plurality of annular structures 512 connected in sequence can contract or expand in the radial direction under the action of uniaxial pressure or tension, and can better simulate the physiological characteristics of the contraction and expansion of the blood vessel. The negative Poisson's ratio structure refers to a structure which can expand or contract in the radial direction while stretching or compressing in the axial direction under the action of the axial force.

[0058] Further, in the embodiment, the number of the circular rings 511 can be changed to adjust the length of the telescopic column 51 in the axial direction, so as to meet the actual needs.

[0059] The annular structure 512 of the three-dimensional concave honeycomb structure with a negative Poisson's ratio structure encloses the torus 511, a plurality of toruses 511 are sequentially connected to form the telescopic column 51, and the connecting ends 52 are respectively arranged at both ends of the telescopic column 51, and the telescopic column 51 and the two connecting ends 52 respectively connected at both ends of the telescopic column 51 are integrally formed by 3D printing, and the material is TPU material (thermoplastic polyurethane elastomer), which takes into account the elasticity and tensile strength of the structure, and the two connecting ends 52 are deformed in the axial direction by following the driving part 2 through the first support frame 3 and the second support frame 4. Due to the special performance of the negative Poisson's ratio structure, the telescopic column 51 expands or shrinks in the radial direction while being telescopic in the axial direction, and drives the simulated blood vessels to expand and shrink.

[0060] The power component of the conventional blood vessel simulation device with physiological characteristics is mostly located outside the simulated blood vessel, and the power component holds the simulated blood vessel to realize the pulsation of the entire simulated blood vessel. However, the essence of blood vessel pulsation is the expansion of blood vessels caused by the ejection of the heart to the whole body arteries when the heart contracts, and the contraction of blood vessels caused by slow blood flow when the heart relaxes, which is the expansion and contraction of the blood vessel wall. Therefore, the essence of blood vessel movement should be inside the blood vessel. Therefore, the conventional blood vessel simulation device with physiological characteristics does not completely conform to the essence of blood vessel pulsation. Compared with the conventional blood vessel simulation device with physiological characteristics, the blood vessel simulation device of the present embodiment overcomes the above-mentioned defects of the conventional blood vessel simulation device with physiological characteristics, and meets the requirement that the size of the blood vessel simulation device conforms to the inside space of the blood vessel by 3D printing technology.

[0061] Figure 9 is a perspective view of the annular structure in the torus.

[0062] In some example embodiments, with reference to Figure 7-9 Each annular structure 512 includes two frames 5121 connected to each other and a connecting column 5122. Each frame 5121 includes two elastic arms 51211 and a base 51214 connected to the first ends 51212 of the two elastic arms 51211, and the second ends 51213 of the two elastic arms 51211 are integrally connected with the second ends 51213 of the two elastic arms 51211 of the other frame 5121, respectively. The connecting column 5122 extends outward in the axial direction from the connection between the two opposite elastic arms 51211 of the two frames 5121, and the two adjacent toruses 511 in the axial direction are combined by the connecting column 5122.

[0063] Through the above arrangement, the two frames 5121 connected to each other form the annular structure 512 of the three-dimensional concave honeycomb structure with a negative Poisson's ratio structure, which provides a structural basis for the torus 511 formed by sequentially connecting a plurality of annular structures 512 to be able to expand or contract in the radial direction while being telescopic in the axial direction.

[0064] In some example embodiments, referring to Figure 8-9 , the included angle γ of the two frames 5121 in the circumferential direction is 120°-140°, preferably 125°, 130°, 135°, so that each annular structure 512 can be elastically deformed in the radial direction; the included angle α between each elastic arm 51211 and the base 51214 is 60°-70°, preferably 62.5°, 65°, 67.5°.

[0065] It should be noted that each annular structure 512 in Figure 8 the top view is a V-shaped structure that protrudes outward in the radial direction.

[0066] In some example embodiments, referring to Figure 2 and Figure 6 , each connecting end 52 includes a substantially circular connecting disc 521, a connecting rod 522, and a plurality of connecting claws 523. The connecting rod 522 extends vertically from the center of the first side 5211 of the connecting disc 521 and is configured to be connected with the first support frame 3 or the second support frame 4. The plurality of connecting claws 523 extend vertically at the edge of the connecting disc 521 at the second side 5212 opposite to the first side 5211 and are respectively integrally connected with the plurality of connecting columns 5122.

[0067] Figure 3 is a left view of the blood vessel simulation device with physiological characteristics of the present application shown in Figure 1 ; Figure 4 is a top view of the blood vessel simulation device with physiological characteristics of the present application shown in Figure 2 ; Figure 5 is a three-dimensional assembly schematic view between the base, the driving part, and the first support frame.

[0068] In some example embodiments, referring to Figure 2-5 , the base 1 includes a base 11 and a first baffle 12 and a second baffle 13 arranged on both sides of the base 11 extending in the transverse direction, and the second support frame 4 is connected with the second baffle 13. The driving part 2 includes a motor seat 21 and a motor 22. The first side wall 211 of the motor seat 21 is connected with the first baffle 12. The motor 22 is installed on the first side wall 211 of the motor seat 21, and the output end 221 of the motor 22 is connected with the first support frame 3 to drive the first support frame 3 to move linearly back and forth in the transverse direction. Preferably, the output end 221 of the motor 22 is arranged parallel to the second side wall 212 of the motor seat 21, and the spacing between the output end 221 of the motor 22 and the second side wall 212 of the motor seat 21 is 6-10 mm, so as to leave enough space for the stroke of the motor 22, facilitate the adjustment of the stretching length of the contraction part 5, and facilitate the change of the contraction and expansion amplitude of the simulated blood vessel.

[0069] It should be noted that in the embodiment, the base 11 is oval, and the motor seat 21 is in U-shaped structure.

[0070] Through the above setting mode, the blood vessel simulation device of the embodiment can realize multiple simulation of the simulation of the blood vessel beating mode by using only one motor 22, reduce the difference between the simulation blood vessel and the actual human body blood vessel, improve the restoration degree of the simulation blood vessel beating, has simple structure, convenient operation, low manufacturing cost, good overall stability, high accuracy, and small influence of external interference.

[0071] In some example embodiments, with reference to Figure 1 , Figure 4-5 The driving part 2 further includes a plug rod 23 and a limiting block 24. One end of the plug rod 23 is connected to the first side wall 211 of the motor seat 21, and the other end extends from the first support frame 3 and is connected to the second side wall 212 of the motor seat 21. The limiting block 24 is sleeved on the outside of the plug rod 23 near the first side wall 211 of the motor seat 21, so as to limit the maximum moving amount of the first support frame 3 in the transverse direction.

[0072] It should be noted that in the embodiment, the two ends of the plug rod 23 are interference-fitted with the first side wall 211 of the motor seat 21 and the second side wall 212 of the motor seat 21, respectively.

[0073] In some example embodiments, the blood vessel simulation device further includes a controller (not shown in the figure) connected to the motor 22, so as to control the output frequency of the motor 22 to control the squeezing and stretching frequency of the contraction part 5.

[0074] In the embodiment, the controller controls the stretching frequency and stroke of the motor 22, so that the contraction part 5 realizes the expansion and contraction motion with different frequencies and amplitudes, so as to realize different vibration modes of the simulation blood vessel, thereby simulating different beating rules of the human body blood vessel.

[0075] In some example embodiments, with reference to Figure 1-2 and Figure 4 The base 11 is further provided with a display screen 7 on the side wall near the contraction part 5 in the longitudinal direction, which is used for displaying the input value of the contraction times of the simulation blood vessel per unit time and transmitting a signal to the controller, so as to control the output frequency of the motor 22 through the controller. Preferably, the motor 22 is a voice coil motor.

[0076] In the embodiment, by providing the display screen 7 on the base 11, the user can input the contraction times of the simulation blood vessel per unit time and the expansion and contraction amplitude on the display screen 7, so as to adjust the frequency and amplitude of the simulation blood vessel beating, so as to simulate the beating condition of the human body blood vessel under different physiological states.

[0077] In some example embodiments, with reference to Figure 1-2The blood vessel simulation device further comprises a shadowless lamp 6 installed on the base 11 away from the contraction part 5 in the longitudinal direction.

[0078] In the embodiment, by arranging the shadowless lamp 6 on the base 11, the problem that natural light and common light cannot meet the light intensity requirement in the experimental operation due to the high light environment requirement of the blood vessel related surgery is solved, and the neck of the shadowless lamp 6 is movable, which facilitates the light requirement of various angles in the surgical training.

[0079] It should be noted that the working principle of the blood vessel simulation device in the embodiment is as follows: when the blood vessel simulation device is used, the simulation blood vessel performs the expansion-contraction-expansion alternating movement with the contraction part 5 under the action of the motor 22, the movement frequency and amplitude of which are adapted to the human body blood vessel pulsation in different states, and by adjusting the extension and contraction amount and the extension and contraction frequency of the motor 22, different vibration modes of the simulation blood vessel can be realized, so as to simulate different jumping rules of the human body blood vessel.

[0080] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only for the specific embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A blood vessel simulation device with physiological characteristics, comprising: a base (1) ; a driving part (2) mounted on one side of the base (1) extending in a transverse direction; a first support frame (3) connected with the driving part (2), so that the first support frame (3) reciprocates linearly in the transverse direction under the driving of the driving part (2) ; a second support frame (4) mounted on the base (1) and arranged opposite to the first support frame (3) ; and a contraction part (5) made of thermoplastic polyurethane material, both ends of the contraction part (5) being connected with the first support frame (3) and the second support frame (4) respectively, the contraction part (5) being configured as a column that shrinks or expands in a radial direction during being extruded or stretched in an axial direction along with the first support frame (3), a blood vessel sleeve being arranged outside the contraction part (5) to shrink or expand along with the contraction part (5) ; the contraction part (5) comprises: an elastic column (51) comprising a plurality of annular rings (511) connected in sequence and integrally formed in the axial direction, each annular ring (511) being surrounded by a plurality of ring structures (512) shaped as hexagons concave in the axial direction and connected in sequence, and each ring structure (512) being configured to protrude outward in the radial direction of the annular ring (511) ; two frames (5121) connected with each other, each frame (5121) comprising two elastic arms (51211) and a base (51214) connected to first ends (51212) of the two elastic arms (51211), second ends (51213) of the two elastic arms (51211) being integrally connected with second ends (51213) of the two elastic arms (51211) of another frame (5121) respectively; and a connecting column (5122) extending outward in the axial direction from the connection between the two opposite elastic arms (51211) of the two frames (5121), two adjacent annular rings (511) in the axial direction being combined by the connecting column (5122) ; two connecting ends (52) connected with both ends of the elastic column (51) respectively and mounted on the first support frame (3) and the second support frame (4), so that the elastic column (51) is extruded or stretched in the axial direction under the driving of the first support frame (3) ; each connecting end (52) comprises: a substantially circular connecting disc (521) ; a connecting rod (522) vertically extending from the center of a first side (5211) of the connecting disc (521) and configured to be connected with the first support frame (3) or the second support frame (4) ; and a plurality of connecting claws (523) vertically extending at the edge of the connecting disc (521) on a second side (5212) opposite to the first side (5211) and integrally connected with a plurality of connecting columns (5122) respectively. The base (1) comprises a base (11), a first baffle (12) and a second baffle (13) arranged on both sides of the base (11) extending in the transverse direction, the second support frame (4) is connected with the second baffle (13), the driving part (2) comprises: a motor base (21), a first side wall (211) of the motor base (21) is connected with the first baffle (12); and a motor (22) mounted on the first side wall (211) of the motor base (21), an output end (221) of the motor (22) is connected with the first support frame (3) to drive the first support frame (3) to move linearly back and forth in the transverse direction; a controller connected with the motor (22) to control the extrusion and stretching frequency of the contraction part (5) by controlling the output frequency of the motor (22).

2. The physiological property simulating blood vessel device according to claim 1, wherein, The included angle γ of the two frames (5121) in the circumferential direction is 120°-140°, so that each ring structure (512) can be elastically deformed in the radial direction; the included angle α between each elastic arm (51211) and the base (51214) is 60°-70°.

3. The physiological property simulating blood vessel mimicking device of claim 1, wherein, The included angle γ of the two frames (5121) in the circumferential direction is 130°, and the included angle α between each elastic arm (51211) and the base (51214) is 65°.

4. The blood vessel simulation device with physiological characteristics according to claim 1, wherein The output end (221) of the motor (22) is arranged in parallel with the second side wall (212) of the motor base (21), and the spacing between the output end (221) of the motor (22) and the second side wall (212) of the motor base (21) is 6-10 mm.

5. The physiological property mimicking blood vessel simulator of claim 1, wherein, The driving part (2) further comprises: a plug rod (23) connected at one end to the first side wall (211) of the motor base (21) and extending from the first support frame (3) to the second side wall (212) of the motor base (21); and a limiting block (24) sleeved on the outside of the plug rod (23) near the first side wall (211) of the motor base (21) to limit the maximum movement of the first support frame (3) moving back and forth in the transverse direction.

6. The physiological property mimicking blood vessel simulator of claim 1, wherein, The base (11) further comprises a display screen (7) arranged on the side wall near the contraction part (5) in the longitudinal direction for displaying the input value of the number of simulated blood vessel contractions per unit time and transmitting a signal to the controller to control the output frequency of the motor (22).

7. The physiological property mimicking blood vessel simulator of claim 1, wherein, The motor (22) is a voice coil motor.

8. The blood vessel simulation device with physiological characteristics according to claim 3, further comprising a shadowless lamp (6) mounted on the side of the base (11) away from the contraction part (5) in the longitudinal direction.

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