Processing equipment for biodegradable magnesium alloy intravascular stent body

Abstract

The invention discloses processing equipment for a biodegradable magnesium alloy intravascular stent body. The processing equipment comprises a processing equipment body, a track, a controller and a transmission mechanism, the machining equipment body comprises a polishing tank, a sand blasting tank and a cleaning tank, and a plurality of conveying mechanisms are arranged between the rails. Each transmission mechanism comprises a transmission rod, a driving mechanism and a plurality of positioning mechanisms, rolling wheels are arranged at the two ends of the transmission rod, and a plurality of racks and air holes are formed in the surface of the transmission rod; the driving mechanism comprises a servo motor, a sub-control unit and a transmission gear. The two ends of the transmission gear are meshed with the servo motor and the rack respectively. And each positioning mechanism comprises a transmission shaft and an insertion pipe, the surface of each transmission shaft is meshed with the corresponding rack, and each insertion pipe is rotationally inserted into the corresponding transmission shaft. According to the device, continuous and batched sand blasting grinding and batched electrochemical polishing treatment can be carried out on the intravascular stent, the production efficiency is improved, and the production cost of the intravascular stent can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical device production, in particular to a processing device for a biodegradable magnesium alloy vascular stent body. Background Art

[0002] Degradable stents are vascular stents made of degradable materials. Compared with vascular stents made of conventional materials, degradable vascular stents have the advantages of no foreign body sensation after degradation and no recurrence of vascular stenosis. Magnesium alloy vascular stents are mainly composed of magnesium, aluminum, zinc and other elements, and have good biocompatibility and mechanical properties. Vascular stents made of magnesium alloy have broad application prospects.

[0003] After being placed in a blood vessel for a period of time, vascular stents made of conventional materials require a second operation to remove the stent. However, vascular stents made of degradable materials do not require surgery to remove them, reducing the patient's pain and discomfort. Magnesium alloy vascular stents can effectively reduce the rate of secondary operations and bring better treatment effects to patients.

[0004] The main production methods of vascular stents include laser engraving, precision casting and hand weaving. After the vascular stent is formed, it needs to go through cleaning, grinding, polishing and other processes to improve the smoothness of the surface of the vascular stent and ensure that the vascular stent will not damage the inner wall of the blood vessel and cause discomfort to the patient in actual use. The existing vascular stent grinding is mainly carried out by sandblasting. Through sandblasting, the burrs on the surface of the vascular stent can be removed. The grinding range is wide and the grinding effect is also good. For the polishing treatment of the vascular stent, the electrochemical polishing method is mainly used. Electrochemical polishing can effectively improve the surface finish of the vascular stent, make the surface of the vascular stent smoother, and ensure the actual use effect.

[0005] The existing surface treatment processes of vascular stents are relatively independent of each other. After a surface treatment process, the staff needs to take out the vascular stent and place it on the equipment of the next treatment process. The continuity between the processes is poor and the overall efficiency of the surface treatment is low. Secondly, the structure of the vascular stent is also relatively special, and the appearance size is relatively small, which is not conducive to the staff to operate it by hand, and the vascular stent is easily squeezed and deformed. Therefore, reducing the manual transfer between processes is also conducive to ensuring the shape of the vascular stent. Summary of the invention

[0006] The object of the present invention is to provide a processing device for a biodegradable magnesium alloy vascular stent body to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a processing device for a biodegradable magnesium alloy vascular stent body, comprising a processing device body, a track, a controller and a transmission mechanism;

[0008] The processing equipment body comprises a polishing tank, a sandblasting tank and two cleaning tanks, tracks are arranged on the inner walls of both sides of the processing equipment body, a plurality of transmission mechanisms are arranged between the two tracks, and a sandblasting mechanism is arranged inside the sandblasting tank;

[0009] Each of the transmission mechanisms comprises a transmission rod, a driving mechanism and a plurality of positioning mechanisms, rollers are arranged at both ends of the transmission rod, and a plurality of racks and air holes are arranged on the surface of the transmission rod, and the rollers are installed inside the track;

[0010] The driving mechanism includes a servo motor, a sub-control unit and a transmission gear, and the two ends of the transmission gear are respectively meshed with the servo motor and the rack;

[0011] Each positioning mechanism comprises a transmission shaft and an insertion tube, the surface of the transmission shaft is meshed with the rack, and the insertion tube is rotatably inserted into the interior of the transmission shaft.

[0012] Preferably, the inner wall of the track is provided with a first power bar and a second power bar, and the surface of one end of each transmission mechanism is provided with a first contact piece and a second contact piece;

[0013] The second contact piece contacts the surface of the second power bar, and the second contact piece is connected to the driving mechanism.

[0014] Preferably, the first contact piece is in contact with the surface of the first power bar.

[0015] Preferably, the positioning mechanism further includes a conductive sheet, a protrusion and a spring sheet, wherein the conductive sheet and the protrusion are both arranged on the surface of the transmission shaft, the protrusion is connected to the conductive sheet, the spring sheet is in contact with the surface of the protrusion, and the spring sheet is connected to the first contact sheet.

[0016] Preferably, the two tracks include a plurality of ascending sections and descending sections;

[0017] The plurality of ascending sections and the plurality of descending sections are symmetrically distributed on both sides of the boundary partitions of the polishing tank, the sandblasting tank and the two cleaning tanks;

[0018] A plurality of air supply mechanisms are arranged on the surface of one side of the processing equipment body, and each of the air supply mechanisms is communicated with the interior of the ascending section.

[0019] Preferably, the sandblasting mechanism comprises a plurality of sandblasting tubes, and the sandblasting tubes are located between the positioning mechanisms.

[0020] Preferably, meshing teeth are formed on the surface of the roller and the inner wall surface of the track.

[0021] Preferably, the inner wall of the transmission shaft and the surface of the insert are provided with meshing threads, and the inner wall of the transmission shaft and the surface of the insert are both tapered;

[0022] The surface of the insert tube is provided with evenly distributed through holes.

[0023] Preferably, the controller comprises a control mainboard, a signal receiving module, a signal transmitting module and an operation panel, and the control mainboard is connected to the power source of the sandblasting mechanism and the air supply mechanism.

[0024] Preferably, the sub-control unit includes a distance sensor, a signal transmitting module, a signal receiving module and a control module, the distance sensor is used to monitor the distance between adjacent transmission mechanisms, and the control module is connected to the servo motor;

[0025] The signal transmitting module of the sub-control unit is adapted to the signal receiving module of the controller, and the signal transmitting module of the controller is adapted to the signal receiving module of the sub-control unit;

[0026] The signal transmission modules of each sub-control unit emit different signal bands.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention increases the continuity between the surface treatment processes of the vascular stent by setting a track and a transmission mechanism, thereby improving the overall efficiency of the surface treatment of the vascular stent. By placing the vascular stents in batches on the surface of the positioning mechanism, the vascular stents can be driven by the transmission mechanism to pass through the sandblasting tank, the cleaning tank and the polishing tank in sequence, so that the vascular stents are sandblasted, cleaned and electrochemically polished in sequence. The continuity between the surface treatment processes is stronger, the overall efficiency of the surface treatment is higher, which is conducive to the batch processing of the vascular stents, can reduce the processing cost and ensure the processing quality;

[0029] 2. The present invention achieves the effect of flexibly adjusting the moving speed of the transmission mechanism to which the driving mechanism belongs according to the needs of the surface treatment process by setting a driving mechanism. The driving mechanism can flexibly adjust the moving speed of the transmission mechanism according to the time required for different processes of the vascular stent, so that the vascular stent under the transmission mechanism stays in a specific treatment process for a sufficient time, which not only ensures the surface treatment effect of the vascular stent, but also effectively improves the overall use flexibility of the processing equipment body, and can be applied to the surface treatment of vascular stents of different specifications and materials;

[0030] 3. The present invention achieves the effect of synchronously driving the transmission mechanism to move and the positioning mechanism to rotate by setting a transmission rod. The rotation of the transmission rod can drive the transmission mechanism to move along the track, and through the engagement between the rack and the transmission shaft, it is possible to synchronously drive multiple positioning mechanisms to rotate. Through the rotation of the positioning mechanism, the vascular stent placed on the surface of the positioning mechanism can be driven to rotate, so that when the vascular stent passes through the sandblasting tank, the cleaning tank and the polishing tank, the surface of the vascular stent can be more comprehensively treated, thereby improving the effect of the surface treatment of the vascular stent and reducing the generation of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the appearance structure of the processing equipment body in the first embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of the sandblasting tank in the first embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the partial appearance structure of the transmission mechanism and the track in the first embodiment of the present invention;

[0034] Figure 4 It is a schematic diagram of a partial front view structure of the transmission mechanism in the first embodiment of the present invention;

[0035] Figure 5 In the first embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure in the middle;

[0036] Figure 6 It is a schematic diagram of the local structure of the transmission mechanism and the track in the first embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the partial appearance structure of the transmission rod in the first embodiment of the present invention;

[0038] Figure 8 It is a schematic diagram of a partial main cross-sectional structure of the transmission mechanism in the first embodiment of the present invention;

[0039] Fig. 9 In the first embodiment of the present invention Figure 8 A magnified schematic diagram of structure B in the middle.

[0040] In the figure:

[0041] 100, processing equipment body; 101, cleaning tank; 102, polishing tank; 103, sandblasting tank; 110, track; 111, ascending section; 112, descending section; 113, first power supply bar; 114, second power supply bar; 120, sandblasting mechanism; 121, sandblasting tube; 130, controller; 140, air supply mechanism;

[0042] 200, transmission mechanism; 210, positioning mechanism; 211, transmission shaft; 212, cannula; 213, conduction sheet; 214, bump; 215, spring sheet; 220, drive mechanism; 221, servo motor; 222, sub-control unit; 223, transmission gear; 230, first contact sheet; 240, second contact sheet; 250, transmission rod; 251, rack; 252, air hole; 253, roller. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 9 , the present invention provides the following two embodiments:

[0045] Embodiment 1:

[0046] See also Figure 1 , a processing device for a biodegradable magnesium alloy vascular stent body, including a processing device body 100, a track 110, a controller 130 and a transmission mechanism 200.

[0047] See also Figure 1 The processing equipment body 100 includes a polishing tank 102, a sandblasting tank 103 and two cleaning tanks 101. A sandblasting mechanism 120 is arranged inside the sandblasting tank 103, and the sandblasting mechanism 120 includes a plurality of sandblasting tubes 121. The sandblasting tubes 121 are located between the positioning mechanisms 210. The sandblasting tubes 121 can spray grinding sand onto the surface of the vascular stent on the surface of the positioning mechanism 210. With the rotation of the positioning mechanism 210, the grinding sand can fully contact the surface of the vascular stent, thereby fully removing the burrs remaining on the surface of the vascular stent.

[0048] See also Figure 1 and Figure 2 A collecting tank is provided at the bottom of the sandblasting tank 103 to collect the sand. A liquid filling pipe and a liquid discharge pipe are provided on one side of the polishing tank 102 and the two cleaning tanks 101 to fill and discharge the electrolyte in the polishing tank 102 and the cleaning liquid in the cleaning tank 101. Tracks 110 are provided on the inner walls of both sides of the processing equipment body 100.

[0049] See also Figure 1 and Figure 2 The two tracks 110 include a plurality of ascending sections 111 and descending sections 112 .

[0050] The plurality of ascending sections 111 and the plurality of descending sections 112 are symmetrically distributed on both sides of the boundary partitions of the polishing tank 102 , the sandblasting tank 103 and the two cleaning tanks 101 .

[0051] See also Figures 4 to 6 , the inner wall of the track 110 is provided with a first power bar 113 and a second power bar 114, and the surface of one end of each transmission mechanism 200 is provided with a first contact piece 230 and a second contact piece 240;

[0052] The second contact piece 240 contacts the surface of the second power bar 114, and the second contact piece 240 is connected to the driving mechanism 220. The first contact piece 230 contacts the surface of the first power bar 113, and the first power bar 113, the second power bar 114, the first contact piece 230 and the second contact piece 240 are all designed with copper material, and the first power bar 113 is only arranged inside the track 110 in the area where the polishing groove 102 is located.

[0053] The first power bar 113 and the second power bar 114 inside the track 110 are used to provide power supply for the transmission mechanism 200, and also maintain the movable state of the transmission mechanism 200. During the movement of the transmission mechanism 200, the power supply of the electronic equipment inside the transmission mechanism 200 can still be maintained unobstructed.

[0054] See also Figures 1 to 4 A plurality of transmission mechanisms 200 are disposed between the two rails 110 , and each transmission mechanism 200 includes a transmission rod 250 , a driving mechanism 220 and a plurality of positioning mechanisms 210 .

[0055] See also Figure 7 , rollers 253 are provided at both ends of the transmission rod 250, and a plurality of racks 251 and air holes 252 are provided on the surface of the transmission rod 250, and the rollers 253 are installed inside the track 110. The surface of the rollers 253 and the inner wall surface of the track 110 are provided with meshing teeth and grooves, and the rollers 253 and the inner wall of the track 110 are meshed with each other through the teeth and grooves, and when the rollers 253 rotate, the transmission mechanism 200 is driven to move along the track 110.

[0056] Please refer to the figure Figure 8 and Fig. 9The positioning mechanism 210 further includes a conductive sheet 213, a bump 214 and a spring 215. The conductive sheet 213 and the bump 214 are both arranged on the surface of the transmission shaft 211. The bump 214 is connected to the conductive sheet 213, and the spring 215 is in contact with the surface of the bump 214. The spring 215 is connected to the first contact sheet 230. The first contact sheet 230 is in contact with the bump 214 through the spring 215, so that the first contact sheet 230 and the conductive sheet 213 maintain a circuit connection. That is, when the stent is sleeved on the surface of the positioning mechanism 210, the top of the stent is in contact with the conductive sheet 213, and the power supply is connected to the stent in the order of the first power bar 113, the first contact sheet 230, the spring 215, the bump 214 and the conductive sheet 213, so that the stent is energized. When the stent is immersed in the polishing tank 102, it is ensured that the stent can react with the electrolyte in the polishing tank 102 to perform electrochemical polishing on the surface of the stent.

[0057] See also Figure 8 The driving mechanism 220 includes a servo motor 221, a sub-control unit 222 and a transmission gear 223, and two ends of the transmission gear 223 are respectively meshed with the servo motor 221 and the rack 251.

[0058] Each positioning mechanism 210 includes a transmission shaft 211 and a cannula 212. The surface of the transmission shaft 211 is meshed with the rack 251. The cannula 212 is rotatably inserted into the transmission shaft 211. The rotation of the transmission rod 250 can drive the transmission mechanism 200 to move along the track 110, and through the meshing between the rack 251 and the transmission shaft 211, it is possible to synchronously drive multiple positioning mechanisms 210 to rotate. Through the rotation of the positioning mechanism 210, the vascular stent placed on the surface of the positioning mechanism 210 can be driven to rotate, so that when the vascular stent passes through the sandblasting tank 103, the cleaning tank 101 and the polishing tank 102, the surface of the vascular stent can be more comprehensively treated, thereby improving the effect of the surface treatment of the vascular stent and reducing the generation of defective products.

[0059] The inner wall of the transmission shaft 211 and the surface of the cannula 212 are both provided with meshing threads, and the inner wall of the transmission shaft 211 and the surface of the cannula 212 are both conical in design. In actual application, the staff can separate the cannula 212 from the transmission shaft 211, put the vascular stent to be processed on the transmission shaft 211 and the surface of the cannula 212, and insert the cannula 212 into the transmission shaft 211. By rotating the threads, the distance between the bottom of the transmission shaft 211 and the bottom of the cannula 212 is shortened until the vascular stent is stably supported and the top of the vascular stent is reliably in contact with the surface of the conductive sheet 213, and the installation of the vascular stent is completed.

[0060] The surface of the insert tube 212 is provided with evenly distributed through holes, and a plurality of air supply mechanisms 140 are provided on the surface of one side of the processing equipment body 100 , and each of the air supply mechanisms 140 is connected to the interior of the ascending section 111 .

[0061] When the transmission mechanism 200 moves to the ascending section 111 of the track 110, that is, the transmission mechanism 200 is about to leave the current process and enter the next process range, when the transmission mechanism 200 is in the ascending section 111, the air supply mechanism 140 transports air to both ends of the transmission mechanism 200, and the air enters the interior through both ends of the transmission rod 250. The air enters the positioning mechanism 210 through the air holes 252 and is discharged from the through holes on the surface of the cannula 212. After being discharged, the air acts on the vascular stent sleeved on the surface of the positioning mechanism 210, and the moisture on the surface of the vascular stent can be removed through the air flow to keep the surface of the vascular stent clean.

[0062] By placing the vascular stents in batches on the surface of the positioning mechanism 210, the transmission mechanism 200 can drive the vascular stents to pass through the sandblasting tank 103, the cleaning tank 101 and the polishing tank 102 in sequence, so that the vascular stents are sequentially sandblasted, cleaned and electrochemically polished. The continuity between the surface treatment processes is stronger, the overall efficiency of the surface treatment is higher, which is conducive to the batch processing of the vascular stents, can reduce the processing cost and ensure the processing quality.

[0063] The controller 130 includes a control mainboard, a signal receiving module, a signal transmitting module and an operation panel. The control mainboard is connected to the power source of the sandblasting mechanism 120 and the air supply mechanism 140, and is used to flexibly control the flow rate of compressed air, the amount of sand used and the air supply during the sandblasting process.

[0064] The sub-control unit 222 includes a distance sensor, a signal transmitting module, a signal receiving module and a control module. The distance sensor is used to monitor the distance between adjacent transmission mechanisms 200. The control module is connected to the servo motor 221. The sub-control unit 222 also includes a small battery for temporarily supplying pre-matching of the signal transmitting module and the signal receiving module.

[0065] The signal transmitting module of the sub-control unit 222 is adapted to the signal receiving module of the controller 130 , and the signal transmitting module of the controller 130 is adapted to the signal receiving module of the sub-control unit 222 .

[0066] The signal transmission module of each sub-control unit 222 emits a signal in a different band, which is used to distinguish the driving mechanisms 220 on multiple transmission mechanisms 200 to avoid the problem of signal transmission confusion.

[0067] During actual use, the staff can separate the transmission mechanism 200 as a whole from the track 110, and place vascular stents in batches on the surface of the positioning mechanism 210, sleeve the vascular stents to be processed on the surfaces of the transmission shaft 211 and the cannula 212, and insert the cannula 212 into the transmission shaft 211, and shorten the distance between the bottom of the transmission shaft 211 and the bottom of the cannula 212 by rotating the thread until the vascular stent is stably supported and the top of the vascular stent is in reliable contact with the surface of the conductive sheet 213, and the installation of the vascular stent is completed.

[0068] The staff opens the driving mechanism 220 of the transmission mechanism 200 , matches the signal transmitting module and the signal receiving module in the driving mechanism 220 with the controller 130 , and after the matching is completed, places the transmission mechanism 200 in the track 110 .

[0069] In the actual processing process, the processing time required for sandblasting, cleaning, and electrochemical polishing of the vascular stent is the same.

[0070] After the driving mechanisms 220 to which the multiple transmission mechanisms 200 belong are matched with the controller 130, the controller 130 sends a transmission speed setting signal through the signal transmitting module, the signal receiving module of the driving mechanism 220 receives the transmission speed setting signal, and feeds the signal back to the control module of the driving mechanism 220, and issues a speed control command to the servo motor 221 through the control module, thereby keeping the servo motor 221 running at a certain speed, so that the multiple transmission mechanisms 200 move along the track 110 at the same speed.

[0071] When the conveying mechanism 200 moves in the track 110 at the same speed, the stent under the conveying mechanism 200 passes through the sandblasting tank 103, the cleaning tank 101, and the polishing tank 102 in sequence, and enters the next cleaning tank 101 after leaving the polishing tank 102, and the surface of the stent is fully sandblasted, cleaned, electrochemically polished, and cleaned again, so that the surface of the stent is smooth, burr-free and clean.

[0072] Based on the technical effect of the same moving speed of multiple transmission mechanisms 200 in this embodiment, another embodiment of the present invention is derived.

[0073] Embodiment 2:

[0074] Based on the technical effect of the same processing time for sandblasting, cleaning, electrochemical polishing and re-cleaning in the first embodiment of the present invention, another embodiment of the present invention is derived, that is, the situation where the time required for sandblasting, cleaning, electrochemical polishing and re-cleaning is different.

[0075] After the driving mechanisms 220 belonging to the multiple transmission mechanisms 200 are matched with the controller 130, the controller 130 sends a transmission speed setting signal through the signal transmission module. The transmission speed setting signal includes a sandblasting stage, a primary cleaning stage, an electrochemical polishing stage, and a secondary cleaning stage. According to the time required for each stage of actual processing, the controller 130 sets the time of the sandblasting stage, the primary cleaning stage, the electrochemical polishing stage, and the secondary cleaning stage respectively, and converts the time information into an electrical signal, which is sent by the controller 130 to the driving mechanisms 220 belonging to the multiple transmission mechanisms 200 respectively.

[0076] The signal receiving module of the driving mechanism 220 receives the transmission speed setting signal and feeds the signal back to the control module of the driving mechanism 220, and issues a speed control command to the servo motor 221 through the control module. The servo motor 221 will execute different speeds in the sandblasting stage, the primary cleaning stage, the electrochemical polishing stage, and the secondary cleaning stage, thereby adjusting the time that the transmission mechanism 200 stays in the cleaning tank 101, the polishing tank 102, and the sandblasting tank 103, and maintaining sufficient processing time for the vascular stent in the sandblasting stage, the primary cleaning stage, the electrochemical polishing stage, and the secondary cleaning stage.

[0077] The driving mechanism 220 can flexibly adjust the moving speed of the conveying mechanism 200 according to the time required for different processes of the vascular stent, so that the vascular stent under the conveying mechanism 200 stays in a specific processing process for a sufficient time. This not only ensures the surface treatment effect of the vascular stent, but also effectively improves the overall use flexibility of the processing equipment body 100. It can be applied to the surface treatment of vascular stents of different specifications and materials to make the surface of the vascular stent smooth, burr-free and clean.

[0078] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A processing device for a biodegradable magnesium alloy vascular stent body, characterized in that: It comprises a processing equipment body (100), a track (110), a controller (130) and a transmission mechanism (200); The processing equipment body (100) comprises a polishing tank (102), a sandblasting tank (103) and two cleaning tanks (101); tracks (110) are arranged on the inner walls of both sides of the processing equipment body (100); a plurality of transmission mechanisms (200) are arranged between the two tracks (110); and a sandblasting mechanism (120) is arranged inside the sandblasting tank (103); Each transmission mechanism (200) comprises a transmission rod (250), a driving mechanism (220) and a plurality of positioning mechanisms (210); rollers (253) are arranged at both ends of the transmission rod (250); a plurality of racks (251) and air holes (252) are arranged on the surface of the transmission rod (250); and the rollers (253) are installed inside the track (110); The driving mechanism (220) comprises a servo motor (221), a sub-control unit (222) and a transmission gear (223), and two ends of the transmission gear (223) are respectively meshed with the servo motor (221) and the rack (251); Each positioning mechanism (210) comprises a transmission shaft (211) and a plug (212); the surface of the transmission shaft (211) is meshed with the rack (251); and the plug (212) is rotatably plugged into the interior of the transmission shaft (211).

2. The processing equipment of the biodegradable magnesium alloy vascular stent according to claim 1 is characterized in that: The inner wall of the track (110) is provided with a first power bar (113) and a second power bar (114), and the surface of one end of each transmission mechanism (200) is provided with a first contact piece (230) and a second contact piece (240); The second contact piece (240) contacts the surface of the second power bar (114), and the second contact piece (240) is connected to the driving mechanism (220).

3. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 2, characterized in that: The first contact piece (230) contacts the surface of the first power bar (113).

4. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 3 is characterized in that: The positioning mechanism (210) further comprises a conductive sheet (213), a convex block (214) and a spring sheet (215); the conductive sheet (213) and the convex block (214) are both arranged on the surface of the transmission shaft (211); the convex block (214) is connected to the conductive sheet (213); the spring sheet (215) is in contact with the surface of the convex block (214); and the spring sheet (215) is connected to the first contact sheet (230).

5. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 1, characterized in that: The two tracks (110) include a plurality of ascending sections (111) and descending sections (112); The plurality of ascending sections (111) and the plurality of descending sections (112) are symmetrically distributed on both sides of the decomposition partitions of the polishing tank (102), the sandblasting tank (103) and the two cleaning tanks (101); A plurality of air supply mechanisms (140) are provided on the surface of one side of the processing equipment body (100), and each air supply mechanism (140) is connected to the interior of the ascending section (111).

6. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 1, characterized in that: The sandblasting mechanism (120) comprises a plurality of sandblasting tubes (121), and the sandblasting tubes (121) are located between the positioning mechanisms (210).

7. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 1, characterized in that: The surface of the roller (253) and the inner wall surface of the track (110) are both provided with meshing teeth.

8. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 1, characterized in that: The inner wall of the transmission shaft (211) and the surface of the insertion tube (212) are both provided with meshing threads, and the inner wall of the transmission shaft (211) and the surface of the insertion tube (212) are both designed in a conical shape; The surface of the insert tube (212) is provided with evenly distributed through holes.

9. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 1, characterized in that: The controller (130) comprises a control mainboard, a signal receiving module, a signal transmitting module and an operation panel, and the control mainboard is connected to the power sources of the sandblasting mechanism (120) and the air supply mechanism (140).

10. The processing equipment for a biodegradable magnesium alloy vascular stent according to claim 9, characterized in that: The sub-control unit (222) comprises a distance sensor, a signal transmitting module, a signal receiving module and a control module, wherein the distance sensor is used to monitor the distance between adjacent transmission mechanisms (200), and the control module is connected to the servo motor (221); The signal transmitting module of the sub-control unit (222) is adapted to the signal receiving module of the controller (130), and the signal transmitting module of the controller (130) is adapted to the signal receiving module of the sub-control unit (222); The signal transmission modules of each sub-control unit (222) emit different signal wavebands.

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