CN220690415U - Vascular stent fatigue testing machine - Google Patents
Vascular stent fatigue testing machine Download PDFInfo
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- CN220690415U CN220690415U CN202320921380.7U CN202320921380U CN220690415U CN 220690415 U CN220690415 U CN 220690415U CN 202320921380 U CN202320921380 U CN 202320921380U CN 220690415 U CN220690415 U CN 220690415U
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- fixedly connected
- fatigue testing
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- 230000002792 vascular Effects 0.000 title claims abstract description 26
- 238000009661 fatigue test Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 38
- 210000004204 blood vessel Anatomy 0.000 claims description 25
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000010339 medical test Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a vascular stent fatigue testing machine, which relates to the technical field of medical test instruments and comprises a base support, wherein an adjusting shaft is rotatably connected to the inside of one end of the base support, a base is arranged at the top of the inside of the base support and fixedly connected to the outer side of the adjusting shaft, two symmetrically arranged guide rails are fixedly arranged at the top of the base, connecting frames are arranged at the tops of two ends of the two guide rails, a test disc is rotatably connected to the inside of the connecting frames, a shell cover is fixedly connected to one side opposite to the test disc, a telescopic connecting rod is fixedly arranged between the test discs, a linear motor is fixedly arranged in one end of the shell cover, a push plate is fixedly connected to one end of a sliding block of the linear motor, and a corrugated pipe is fixedly connected to one end of the push plate. The utility model can perform fatigue test on 6-12 vascular stents with the length of 2-50mm at a time, has higher efficiency, and can perform full-automatic operation test without human intervention during the test.
Description
Technical Field
The utility model relates to the technical field of medical test instruments, in particular to a vascular stent fatigue testing machine.
Background
The vascular stent is mainly applied to the aspect of cardiovascular diseases, the vascular stent is subjected to different forms of external force effects such as 1.5-2 tens of millions of pulse stimulation, bending rotation, axial compression and the like after being planted into the blood vessel of middle-aged people, the mechanical property of the vascular stent also needs to be exposed in a certain environment for a long time for experiment, and the change of the vascular stent planted into the blood vessel is observed through a certain test data review, and the vascular stent is subjected to not only the pressure of the pulsation of the blood vessel but also the multidirectional stress such as torsion, bending, stretching, compression and the like after being planted into the human blood vessel of the vascular stent, and can be subjected to radial extrusion from target lesion blood vessels and plaques in the aspect of radial force, and also can bear the pressure of blood pressure, tissues and body fluid inside and outside the stent. In the axial direction, the tortuous structure of the blood vessel can lead the blood vessel stent to generate bending and torsional deformation, the blood vessel stent needs to have enough flexibility, ensures better adherence after the blood vessel stent is planted into a human body, and can not cause damage to the blood vessel wall.
At present, the existing vascular stent fatigue testing machine is small in number of vascular stents to be tested at a time, low in efficiency, incapable of automatically running for a long time and needing human intervention, and therefore, the vascular stent fatigue testing machine is provided.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a vascular stent fatigue testing machine.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a vascular support fatigue testing machine, includes the base support, the inside rotation of base support one end is connected with the regulating spindle, just the inside top of base support is provided with the base, base fixed connection is in the outside of regulating spindle, the fixed guide rail that is provided with two symmetries in top of base, two the top at guide rail both ends all is provided with the link, the inside rotation of link is connected with the test dish, the equal fixedly connected with shell cover in one side that the test dish is opposite, just fixedly provided with telescopic connecting rod between the test dish.
Further, a linear motor is fixedly arranged in one end of the shell cover, a pushing plate is fixedly connected to one end of a sliding block of the linear motor, and a corrugated pipe is fixedly connected to one end of the pushing plate.
Further, a main through groove and a plurality of auxiliary through grooves are formed in the test disc, the auxiliary through grooves are communicated with the main through groove, and one end of the corrugated pipe is communicated with the main through groove.
Further, a plurality of pipeline joints are fixedly arranged on one opposite sides of the test disc, the pipeline joints are respectively communicated with matched auxiliary through grooves, a simulated blood vessel is arranged between every two opposite pipeline joints, and two ends of the simulated blood vessel are fixedly connected to the outer sides of the pipeline joints through clamps.
Further, a plurality of adjusting holes are formed in the top surface of the guide rail, and inserted bars matched with the adjusting holes are fixedly arranged on the inner side of the connecting frame.
Further, the surface of the test disc is fixedly provided with a plurality of luer heads, and one ends of the luer heads are communicated with the main through groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. the fatigue test can be carried out on 6-12 vascular stents with the length of 2-50mm at a time, the efficiency is high, no human intervention is needed during the test, and the test is fully automatically operated.
2. The symmetrical structure is adopted for each device, so that larger power output can be provided, the device can test the vascular stent with larger diameter, the test frequency is improved, the deformation of the simulated blood vessel in the width range of the simulated blood vessel under the large frequency is uniform and consistent, and the horn-shaped deformation of the simulated blood vessel caused by single-side test is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a schematic diagram of the whole structure of a stent fatigue testing machine according to the present utility model;
FIG. 2 is a schematic structural view of a stent fatigue testing machine housing according to the present utility model;
fig. 3 is a schematic structural diagram of a test panel of a stent fatigue testing machine according to the present utility model.
In the figure: 1. a base bracket; 2. an adjusting shaft; 3. a base; 4. a guide rail; 5. a connecting frame; 6. a test tray; 7. a housing; 8. a telescopic connecting rod; 9. a pipe joint; 10. simulating a blood vessel; 11. luer head; 12. a linear motor; 13. a bellows; 14. a push plate; 15. a main through groove; 16. a secondary through groove; 17. and adjusting the hole.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model;
referring to fig. 1-3, a vascular stent fatigue testing machine, including base support 1, the inside rotation of base support 1 one end is connected with regulating spindle 2, and the inside top of base support 1 is provided with base 3, base 3 fixed connection is in the outside of regulating spindle 2, the fixed guide rail 4 that is provided with in top of base 3, the top at two guide rails 4 both ends all is provided with link 5, the inside rotation of link 5 is connected with test dish 6, the equal fixedly connected with shell cover 7 of one side opposite to test dish 6, and be provided with telescopic connecting rod 8 between the test dish 6, it can be seen from fig. 3 that the protruding frame at test dish 6 both ends is located on link 5, test dish 6 can rotate, so observe the state of each simulated blood vessel 10, second test dish 6 is removable, specifically can test 6-12 simulated blood vessels 10 of 2-50mm according to the quantity of simulated blood vessel 10 that needs test.
A linear motor 12 is fixedly arranged in one end of the shell cover 7, one end of a sliding block of the linear motor 12 is fixedly connected with a push plate 14, and one end of the push plate 14 is fixedly connected with a corrugated pipe 13;
a main through groove 15 and a plurality of auxiliary through grooves 16 are formed in the test disc 6, the auxiliary through grooves 16 are communicated with the main through groove 15, and one end of the corrugated pipe 13 is communicated with the main through groove 15;
a plurality of pipeline joints 9 are fixedly arranged on one side of the test disc 6 opposite to each other, the pipeline joints 9 are respectively communicated with matched auxiliary through grooves 16, a simulated blood vessel 10 is arranged between every two opposite pipeline joints 9, and two ends of the simulated blood vessel 10 are fixedly connected to the outer sides of the pipeline joints 9 through clamps;
when the linear motor 12 is started, the slide block on the linear motor pushes the push plate 14 to squeeze the corrugated tube 13, fluid in the corrugated tube 13 is squeezed into the main through groove 15, and is dispersed into each auxiliary through groove 16, the fluid is injected into the simulated blood vessel 10 from the pipeline joint 9, and when the slide block goes back, the push plate 14 is pulled to stretch the corrugated tube 13, and the corrugated tube 13 withdraws the fluid, so that fatigue test is conducted on the simulated blood vessel 10 repeatedly.
A plurality of adjusting holes 17 are formed in the top surface of the guide rail 4, inserted bars matched with the adjusting holes 17 are fixedly arranged on the inner sides of the connecting frames 5, and the distance between the two connecting frames 5 can be adjusted through the matching of the telescopic connecting rods 8, the inserted bars and the adjusting holes 17, so that the purpose of testing vascular stents of any specification and variety is achieved.
The fixed surface of test dish 6 is provided with a plurality of luer 11, and the one end of a plurality of luer 11 all communicates main logical groove 15, when the back with base 3 slope through regulating spindle 2, can make the inside of the walking of the gaseous walking of bellows 13 to test dish 6, opens luer 11 afterwards, can discharge gas.
Claims (6)
1. The utility model provides a vascular support fatigue testing machine, includes base support (1), its characterized in that, the inside rotation of base support (1) one end is connected with regulating spindle (2), just the inside top of base support (1) is provided with base (3), base (3) fixedly connected in the outside of regulating spindle (2), the fixed guide rail (4) that are provided with two symmetries in top of base (3), two the top at guide rail (4) both ends all is provided with link (5), the inside rotation of link (5) is connected with test dish (6), the equal fixedly connected with shell cover (7) in one side that test dish (6) are opposite, just fixedly provided with telescopic connecting rod (8) between test dish (6).
2. The vascular stent fatigue testing machine according to claim 1, wherein a linear motor (12) is fixedly arranged in one end of the housing (7), one end of a sliding block of the linear motor (12) is fixedly connected with a push plate (14), and one end of the push plate (14) is fixedly connected with a corrugated pipe (13).
3. The vascular stent fatigue testing machine according to claim 2, wherein a main through groove (15) and a plurality of auxiliary through grooves (16) are formed in the test disc (6), the auxiliary through grooves (16) are communicated with the main through groove (15), and one end of the corrugated tube (13) is communicated with the main through groove (15).
4. A vascular stent fatigue testing machine according to claim 3, wherein a plurality of pipeline joints (9) are fixedly arranged on one side of the test disc (6) opposite to each other, the pipeline joints (9) are respectively communicated with matched auxiliary through grooves (16), a simulated blood vessel (10) is arranged between every two opposite pipeline joints (9), and two ends of the simulated blood vessel (10) are fixedly connected to the outer sides of the pipeline joints (9) through clamps.
5. The vascular stent fatigue testing machine according to claim 1, wherein the top surface of the guide rail (4) is provided with a plurality of adjusting holes (17), and the inner side of the connecting frame (5) is fixedly provided with a inserted link matched with the adjusting holes (17).
6. The vascular stent fatigue testing machine according to claim 1, wherein a plurality of luer heads (11) are fixedly arranged on the surface of the testing disc (6), and one ends of the luer heads (11) are communicated with the main through groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320921380.7U CN220690415U (en) | 2023-04-21 | 2023-04-21 | Vascular stent fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320921380.7U CN220690415U (en) | 2023-04-21 | 2023-04-21 | Vascular stent fatigue testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220690415U true CN220690415U (en) | 2024-03-29 |
Family
ID=90378150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320921380.7U Active CN220690415U (en) | 2023-04-21 | 2023-04-21 | Vascular stent fatigue testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220690415U (en) |
-
2023
- 2023-04-21 CN CN202320921380.7U patent/CN220690415U/en active Active
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