Sand blasting device with particle buffer recovery shell and sand blasting method thereof

Abstract

The application discloses a sand blasting device with a particle buffer recovery shell, which comprises a support frame, a spraying assembly and a splash-proof box body. The support frame comprises a support panel, and the support panel is provided with a first support assembly and a second support assembly. The first support assembly serves as a connecting support for the spraying assembly and the splash-proof box body. The second support assembly comprises a connecting piece, which fixes the two ends of an intervention device to be processed. The spraying assembly comprises a nozzle and a working medium. The working medium is sprayed to the surface of the intervention device to be processed through the nozzle after being pressurized. The splash-proof box body is a box body structure with an inner cavity. The surface of the splash-proof box body is provided with a first perforation, a second perforation and a third perforation for the connecting piece and the nozzle to pass through. The intervention device to be processed is placed in the inner cavity for sand blasting treatment. The application also discloses a sand blasting method using the sand blasting device. The sand blasting device can meet the processing characteristics of the intervention medical instrument field, effectively control the influence of sand particles, dust and the like, and has high processing precision and long service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of interventional medical devices, in particular to a sand blasting device with a particle buffer recovery shell and a sand blasting method thereof. BACKGROUND

[0002] At present, the basic components of the interventional device for stroke treatment need to be micro-processed before assembly, aiming to remove surface defects, burrs or dirt, etc. of the basic components. For example, the manufacturing process of the intracranial blood vessel thrombectomy stent, the main body of the thrombectomy stent is its basic component, the initial step is to use laser cutting process on the thin metal pipe to make it initially shaped, however, the surface of the net cage formed by laser cutting still has a lot of surface defects, residual solder, burrs, etc. which need to be removed in the subsequent process, which needs to be performed by a sand blasting device.

[0003] The sand blasting machine dedicated to processing interventional devices is different from other fields of sand blasting equipment. Due to the processing requirements and characteristics of interventional devices, the structure of the workpiece is more complex, and the requirement for processing precision is very strict. However, the existing sand blasting machine for processing interventional devices is generally open or integrated into other upstream and downstream processing equipment. The sand particles and dust of such equipment are very easy to leak, thereby splashing or bouncing to other components, affecting the precision of the equipment processing, especially in the case of strict requirements for interventional devices, which is very disadvantageous due to the inability to be directly identified by the naked eye.

[0004] Therefore, there is an urgent need for a sand blasting device and a sand blasting method that can meet the processing characteristics of the interventional medical device field, effectively control the influence of sand particles, dust, etc., have high processing precision, and have long service life. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the present application provides a sand blasting device with a particle buffer recovery shell and a sand blasting method thereof, which can meet the processing characteristics of the interventional medical device field, effectively control the influence of sand particles, dust, etc., and have high processing precision and long service life.

[0006] The first aspect of the present application provides a sand blasting device with a particle buffer recovery shell, comprising a support frame, a spraying assembly and a splash-proof box body.

[0007] The support frame comprises a support panel, the support panel is provided with a first support assembly and a second support assembly, the first support assembly serves as a connecting support for the spraying assembly and the splash-proof box body; the second support assembly comprises a connecting piece, which fixes the two ends of the interventional device to be processed through the connecting piece.

[0008] The spraying assembly is used for sand blasting treatment of the interventional device to be processed; the spraying assembly is installed on the first supporting assembly, and the spraying assembly comprises a nozzle and a working medium.

[0009] The splash-proof box body is fixed to the first supporting assembly, and the splash-proof box body is a box body structure with an inner cavity.

[0010] In the first aspect of the present application, as a preferred embodiment, the splash-proof box body comprises a detachable upper cover shell and a bottom shell, wherein the first through hole, the second through hole and the third through hole are arranged on the surface of the upper cover shell; the first through hole and the second through hole can be used for the passing of the connecting piece and the interventional device to be processed, thereby forming a processing channel, and the processing channel comprises passing in a feeding direction and passing in a discharging direction.

[0011] The third through hole is an elliptical or groove-shaped through hole, and the through hole is used for adjusting the spraying angle of the nozzle.

[0012] In the first aspect of the present application, as a preferred embodiment, the inner edges of the first through hole, the second through hole and the third through hole are provided with normal extension covering bristles; the outer side of the covering bristles is provided with an electrostatically treated adsorption layer.

[0013] In the first aspect of the present application, as a preferred embodiment, the bottom shell has a downwardly inclined inclined surface, and the end of the inclined surface is provided with a cleaning port; the bottom shell is provided with a vibrating screen, and the vibrating screen applies a certain frequency of vibration to the inclined surface.

[0014] In the first aspect of the present application, as a preferred embodiment, the inner cavity surface is provided with a buffer layer, the buffer layer is an elastic porous material, and the buffer layer is a sponge with fiber holes and fiber gaps.

[0015] In the first aspect of the present application, as a preferred embodiment, the nozzle is provided with a thickened structure on one side, the thickened structure is an elastic porous material, and the thickened structure has a downwardly concave curved surface with a downward parabolic opening.

[0016] In the first aspect of the present application, as a preferred embodiment, the first supporting assembly comprises a first driving piece, a first transmission structure, a first guide structure and a mounting table.

[0017] The mounting table is used for mounting the spraying assembly and the splash-proof box body; the mounting table is slidably connected with the support panel through a first guide structure; the mounting table is linked with the first driving member through the first transmission structure, and is driven to move in the guide rail direction by the power provided by the first driving member.

[0018] In the first aspect of the present application, as a preferred embodiment, the first support assembly further comprises a movable table, and a mounting column is arranged on the movable table; the spraying assembly is mounted on the movable table through the mounting column; the movable table is connected with the mounting table through a sliding groove, and the position of the movable table on the mounting table is adjusted through the sliding groove, so that the relative position of the spraying assembly and the splash-proof box body is adjusted.

[0019] In the first aspect of the present application, as a preferred embodiment, the second support assembly comprises a second driving member and a clamping drum structure; the clamping drum structure is rotatably connected with the support panel through a connecting plate, and two clamping drum structures are arranged on the two sides of the splash-proof box body respectively, and are used for fixing the end of the connecting member; the two clamping drum structures are driven to rotate by the power provided by the second driving member, so that the to-be-processed interventional device fixed to the connecting member is rotated;

[0020] The second aspect of the present application provides a sand blasting method, which comprises the following steps,

[0021] The pre-adjusting step: providing the sand blasting device with the particle buffer recovery shell according to any one of the first aspect of the present application; based on the processing requirements and parameters of the to-be-processed interventional device, the sand blasting pressure, the working medium and the angular position parameters of the spraying assembly are pre-adjusted;

[0022] The splash-proof box body adjusting: the relative position of the splash-proof box body and the spraying assembly is adjusted by the movable table, so that the nozzle is in the best spraying position;

[0023] The feeding step: the two ends of the to-be-processed interventional device are connected with the connecting members respectively, and the connecting members are fixed with the two clamping drum structures through the first perforation and the second perforation; so as to form a processing channel in the inner cavity; the working medium is sprayed on the surface of the to-be-processed interventional device by the spraying assembly until the sand blasting is completed;

[0024] The discharging step: the connecting members on the two clamping drum structures are removed, and the to-be-processed interventional device is taken out under the traction of the connecting members.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] 1. The sand blasting device of the present application limits the activity range of the powdery mixture composed of the working medium and other particulate impurities by setting the splash-proof box body, isolates the powdery mixture from other transmission parts, connecting parts or driving parts, can effectively prevent the splashed powdery mixture from splashing out to hit the components of other external equipment and affect the normal work of the surrounding transmission assembly, and has no influence and damage on the connection strength, transmission accuracy and the like, avoids wear or accuracy reduction in the case that the naked eye cannot identify, and improves the service life of the equipment.

[0027] 2. The sand blasting device of the present application cleans the sand particles, particulates and impurity powdery mixture by setting the inclined surface and the removal port on the bottom shell, applying a certain frequency of vibration by cooperating with the vibrating screen, facilitates recycling and cleaning, and can avoid the interference of the suction airflow to the ejected jet in the aiming direction, improves the sand blasting efficiency and efficiency.

[0028] 3. The sand blasting device of the present application sets the buffer layer on the inner cavity surface, and sets the thickening structure on the opposite side of the nozzle, the buffer layer and the thickening structure are made of elastic porous material, which has fiber holes and fiber gaps smaller than the size of the powder mixture, removes the initial kinetic energy or ejection kinetic energy of the splashed sand particles, particulates and impurity powder mixture by the elastic porous material, the particles which have completely consumed the initial kinetic energy or ejection kinetic energy will freely fall or slowly descend to the bottom shell under the action of gravity. Reduce the impact on the splash-proof box body and improve the isolation effect of the splash-proof shell. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of the sand blasting device of the present application;

[0030] Figure 2 is another angle of the structural schematic view of the sand blasting device of the present application;

[0031] Figure 3 is a structural schematic view of the splash-proof box body of the present application;

[0032] Figure 4 is another angle of the structural schematic view of the splash-proof box body of the present application;

[0033] Figure 5 is a structural schematic view of the splash-proof box body of the present application;

[0034] Figure 6 is a schematic view of the use state of the splash-proof box body of the present application.

[0035] In the drawings: 100, support frame; 110, first support assembly; 111, first driving member; 112, first transmission structure; 113, first guide structure; 114, mounting table; 120, second support assembly; 121, connecting member; 123, second driving member; 124, clamping drum structure; 200, spraying assembly; 210, nozzle; 300, splash-proof box body; 310, inner cavity; 311, thickened structure; 320, upper cover body; 321, first perforation; 322, second perforation; 323, third perforation; 330, bottom shell; 331, inclined surface; 332, cleaning opening; 333, vibrating screen; 800, powdery mixture; 900, device to be processed. DETAILED DESCRIPTION

[0036] Hereinafter, the application will be further described in conjunction with the drawings and specific embodiments, it should be noted that, in the absence of conflict, the following described embodiments or technical features between each of the can be arbitrarily combined to form a new embodiment. Except for the special description, the materials and equipment used in the embodiments can be purchased from the market. Examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the application and cannot be understood as a limitation on the application.

[0037] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically specified and limited.

[0038] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected", "communicated", "connected" should be understood broadly, for example, it can be fixedly connected, or connected through an intermediate medium, or the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. In addition, the terms "including," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to the process, method, product, or apparatus.

[0040] Example 1:

[0041] like Figures 1-6 As shown, this embodiment provides a sandblasting device with a particle buffer recovery cover, including a support frame 100, a spray assembly 200 and a splash-proof box body 300;

[0042] The support frame 100 provides a support base for the device. The support frame 100 includes a support panel, on which a first support assembly 110 and a second support assembly 120 are provided. The first support assembly 110 connects and supports the injection assembly 200 and the splash-proof box 300. The second support assembly 120 includes a connector 121, which securely connects the two ends of the interventional device 900 to the processing station.

[0043] The spray assembly 200 is used to perform sandblasting on the intervening component 900 to be processed, which has been mounted on the second support assembly 120. The spray assembly 200 is adjustably mounted on the first support assembly 110. The spray assembly 200 includes a nozzle 210 and a working medium. The working medium can be sand grains with a grinding effect or other existing abrasives. The working medium is pressurized by compressed air or other fluids and then sandblasted by the nozzle 210 on the intervening component 900 to be processed.

[0044] The splash-proof box 300 is fixed to the first support assembly 110. The splash-proof box 300 is a box structure having an inner cavity 310. The inner cavity 310 forms a processing station for sandblasting the interventional device 900 to be processed. The surface of the splash-proof box 300 is provided with a first through-hole 321 for the connector 121 to pass through, a second through-hole 322, and a third through-hole 323 for the nozzle 210 to enter. This allows the interventional device 900 to be placed in the inner cavity 310 for sandblasting, thereby limiting the range of movement of the powdered mixture 800 composed of the working fluid and other particulate impurities.

[0045] In use, the connecting pieces 121 at both ends of the interventional device 900 to be processed are respectively threaded through the first through hole 321 and the second through hole 322 to be fixed with the second support assembly 120, the interventional device 900 to be processed is arranged in the splash-proof box body 300, and the nozzle 210 is threaded into the splash-proof box body 300 through the third through hole 323. At this time, the interventional device 900 to be processed and the nozzle 210 are simultaneously in the inner cavity 310, the on-off of the working medium output and the jetting pressure are controlled to perform sand blasting treatment on the interventional device 900 to be processed. The on-off of the working medium output and the jetting pressure of the embodiment can be a closed-loop control mode, which is realized by an external electric control module according to a preset program, or an open-loop control mode, which is directly controlled by a process operator.

[0046] Due to the special requirements of interventional device processing on processing precision and working medium, the splashed working medium powder is very easy to cause loosening of the equipment connection part, wear of the transmission part, affect the processing precision and service life, and the sand prevention device of the ordinary sand blasting equipment is difficult to play a limiting role. Therefore, on the basis of the above, the sand blasting device of the embodiment limits the activity range of the powdery mixture 800 composed of the working medium and other particulate impurities by arranging the splash-proof box body 300, isolates the powdery mixture 800 from other transmission parts, connection parts or driving parts, can effectively prevent the splashed powdery mixture 800 from splashing out to hit the components of other external equipment and affect the normal work of the surrounding transmission assembly, and affect and damage the connection strength and transmission precision, avoid wear or precision decline under the condition that the naked eye cannot identify, and improve the service life of the equipment.

[0047] Further, the splash-proof box body 300 of the embodiment includes an upper cover shell 320 and a bottom shell 330, wherein the first through hole 321, the second through hole 322 and the third through hole 323 are arranged on the surface of the upper cover shell 320. The first through hole 321 and the second through hole 322 are used for the connecting piece 121 and the interventional device 900 to be processed to pass through to form a processing channel, and the processing channel includes a feeding direction passing and a discharging direction passing. The inner edges of the first through hole 321 and the second through hole 322 are provided with normal extension covering bristles for strengthening the barrier to sand particles, particulate impurities. The embodiment forms a processing channel, which facilitates linking the sand blasting treatment process of the interventional device 900 to be processed with the production line of the product to form a complete processing route, and improves the automation production level.

[0048] The third through hole 323 can be an elliptical through hole or a slot-shaped through hole, and the inner edge of the third through hole 323 is provided with normal extension covering bristles for strengthening the barrier to sand particles, particulate impurities. The third through hole 323 is arranged as an elliptical through hole or a slot-shaped through hole in the embodiment, so that the nozzle 210 can be adjusted in a small range of angular displacement, so that the interventional device 900 to be processed can be subjected to more comprehensive sand blasting treatment.

[0049] Furthermore, an adsorption layer may be provided on the outside of the covering bristles. The adsorption layer may be a structure that has been electrostatically treated. By providing the adsorption layer, the escaped powder mixture 800 may be captured and adsorbed, thereby further preventing the powder mixture 800 from overflowing.

[0050] The bottom shell 330 is used to receive and remove the powder mixture 800 such as sand, particles and impurities. The bottom shell 330 is detachably connected to the upper cover shell 320. In this embodiment, the bottom shell 330 is connected to the upper cover shell 320 by means of a snap-fit ​​slot. The bottom shell 330 has a downwardly inclined inclined surface 331, and a cleaning port 332 is provided at the end of the inclined surface 331. By providing the inclined surface 331 and the cleaning port 332, the powder mixture 800 is concentrated in the cleaning port 332 under the action of gravity, and then the powder mixture 800 is cleared away by the cleaning port 332 through an external device or poured out by hand, thereby completing the recovery and cleaning of the powder mixture 800.

[0051] Furthermore, to prevent accumulation of powdered mixture 800, bottom housing 330 may be provided with a vibrating screen 333. Vibrating screen 333 applies a certain frequency of vibration to inclined surface 331, vibrating sand, particles, and impurities in powdered mixture 800 out of removal port 332 for easy recovery and cleaning. This embodiment of bottom housing 330 differs from other existing methods of using suction to remove particles, as it avoids interference of the suction airflow with the aiming direction of the ejected jet.

[0052] In some preferred embodiments, a buffer layer is provided on the surface of the inner cavity 310. In this embodiment, the buffer layer is an elastic porous material, preferably a sponge with fiber pores and fiber gaps. The buffer layer can remove the initial kinetic energy or ejection kinetic energy of the powdered mixture 800, such as sand, particles, and impurities, that splashes onto the surface of the inner cavity 310. Because the size of the powdered mixture 800 is smaller than the fiber pores and fiber gaps, particles that have completely consumed their initial kinetic energy or ejection kinetic energy will freely fall or slowly descend to the bottom shell 330 under the action of their own gravity. This reduces the impact on the splash-proof box body 300 and improves the isolation effect of the splash-proof housing 300.

[0053] Furthermore, a thickened structure 311 is provided on the opposite side of the nozzle 210, and the thickened structure 311 is made of an elastic porous material; the thickened structure 311 has a downwardly inclined slope, preferably a concave surface with a parabolic opening facing downward; by providing the thickened structure 311 with a concave surface, the absorption of particles that are directly shot and those that are ejected and then splashed on the bracket is maximized, thereby further improving the buffering effect on the particles of the powdered mixture 800.

[0054] In some preferred embodiments, the first supporting assembly 110 comprises a first driving member 111, a first transmission structure 112, a first guiding structure 113 and a mounting table 114. The mounting table 114 is used for mounting the spraying assembly 200 and the splash-proof box 300. The mounting table 114 is slidingly connected with the supporting panel through the first guiding structure 113, which is a sliding block guide rail structure. The mounting table 114 is linked with the first driving member 111 through the first transmission structure 112. The first driving member 111 provides power to drive the mounting table 114 to move in the guide rail direction, so as to adjust the position of the spraying assembly 200 and the splash-proof box 300.

[0055] The first supporting assembly 110 further comprises a movable table, which is provided with mounting columns. The spraying assembly 200 is mounted on the movable table through the mounting columns. The movable table is connected with the mounting table 114 through a sliding groove. The position of the movable table on the mounting table 114 is adjusted through the sliding groove, so as to finely adjust the relative position of the spraying assembly 200 and the splash-proof box 300. Meanwhile, the activity angle of the spraying assembly 200 is adjusted by the mounting columns, so that the spraying assembly 200 is moved to the best position, and the sand blasting processing quality is improved.

[0056] The second supporting assembly 120 comprises a second driving member 123 and a clamping rotary drum structure 124. The clamping rotary drum structure 124 is rotatably connected with the supporting panel through a connecting plate. Two clamping rotary drum structures 124 are respectively arranged on the two sides of the splash-proof box 300, and are used for fixing the end of the connecting member 121. The second driving member 123 provides power to drive the two clamping rotary drum structures 124 to rotate, so that the to-be-processed intervention device 900 fixed to the connecting member 121 is rotated, and the processing efficiency of the sand blasting is improved. The second driving member 123 and the clamping rotary drum structure 124 are arranged outside the splash-proof box 300, which is beneficial to avoiding the influence of the powdery mixture 800.

[0057] Further, the second supporting assembly 120 further comprises an auxiliary bracket. The auxiliary bracket provides auxiliary support for the connecting member 121. The auxiliary bracket can be arranged inside the splash-proof box 300, so as to prevent the connecting member 121 from shaking or bending under the blowing force of the nozzle 210 and affecting the processing quality. The auxiliary bracket can be arranged outside the splash-proof box 300, and supports the connecting member 121. This can reduce the clamping burden of the two clamping rotary drum structures 124, increase the isolation space of the clamping rotary drum structure 124, the second driving member 123 and the splash-proof box 300, and thus reduce the interference of the powdery mixture 800 to the transmission member and the connecting structure.

[0058] Embodiment 2:

[0059] The embodiment provides a sand blasting method based on the embodiment 1, which comprises the following steps,

[0060] S1 Pre-adjustment step: providing a sandblasting device with a particle buffer recovery housing as described in Example 1; pre-adjusting the sandblasting pressure, working fluid, and angle position parameters of the spray assembly 200 based on the processing requirements and parameters of the interventional device 900 to be processed;

[0061] S2: Splash-proof box adjustment: The relative position of the splash-proof box 300 and the spray assembly 200 is adjusted through the movable table so that the nozzle 210 is in the optimal spraying position;

[0062] S3: Loading step: Connect the two ends of the intervening component 900 to be processed to the connecting member 121 respectively. The connecting member 121 passes through the first through-hole 321 and the second through-hole 322 and is fixed to the two clamping drum structures 124. Thus, a processing channel is formed in the inner cavity 310. The spray assembly 200 is activated to spray the working medium onto the surface of the intervening component 900 to perform sandblasting processing until the preset value is reached. The sandblasting is completed.

[0063] S4 unloading step: removing the connecting pieces 121 from the two clamping drum structures 124 and taking out the interventional device 900 to be processed under the traction of the connecting pieces 121;

[0064] S5 cleaning step: During non-processing time, disassemble the splash-proof box body 300, open the bottom shell 330 in a safe place, remove the buffer layer for washing and squeezing; remove the powdered mixture 800 adhering to the buffer layer, and the cleaned buffer layer can be reinstalled into the inner cavity 310.

[0065] The present invention provides a splash-proof box 300 to facilitate the isolation of kinetic sand particles, abrasive particles, and impurities that have been brushed away, preventing the aforementioned substances from splashing out and hitting other external equipment components and affecting the normal operation of peripheral transmission components. The present invention is different from other existing methods of using suction to remove particles, and avoids the interference of the suction airflow with the aiming direction of the ejected jet. The description and drawings of the present invention use the thrombectomy stent as an example. However, in actual application, although there are many processing opportunities for the thrombectomy stent product, of course, it is not limited to the thrombectomy stent device. Many interventional medical devices for cardiovascular and cerebrovascular diseases more or less require sandblasting equipment for morphological correction and defect removal. Therefore, the current solution can be promoted and transplanted into the processing of other interventional medical devices.

[0066] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A sandblasting device with a particle buffer recovery enclosure, characterized in that, The support frame, the spraying assembly and the splash-proof box body are included. The support frame includes a support panel, a first support assembly and a second support assembly are arranged on the support panel, the first support assembly serves as a connecting support for the spraying assembly and the splash-proof box body; the second support assembly includes a connecting piece, and both ends of the interventional device to be processed are fixed through the connecting piece; The spraying assembly is used for sand blasting treatment of the interventional device to be processed; the spraying assembly is installed on the first support assembly, and the spraying assembly includes a nozzle and a working medium; the working medium is sprayed to the surface of the interventional device to be processed through the nozzle after being pressurized; The splash-proof box body is fixed to the first support assembly, and the splash-proof box body is a box body structure with an inner cavity; a first through hole, a second through hole and a third through hole are arranged on the surface of the splash-proof box body, the first through hole and the second through hole are used for the connecting piece to pass through, and the third through hole is used for the nozzle to enter; the interventional device to be processed is placed in the inner cavity for sand blasting treatment, and the activity range of the powdery mixture composed of the working medium and the particulate impurities is limited; A buffer layer is arranged on the surface of the inner cavity, the buffer layer is an elastic porous material, the elastic porous material is a sponge with fiber holes and fiber gaps; a thickened structure is arranged on the side of the nozzle opposite to the side of the nozzle, the thickened structure is an elastic porous material, and the thickened structure has a concave curved surface with a parabolic opening downward.

2. A blasting apparatus with a particle buffer recovery enclosure according to claim 1, wherein, The splash-proof box body includes a detachable upper cover shell and a bottom shell, the first through hole, the second through hole and the third through hole are arranged on the surface of the upper cover shell; the first through hole and the second through hole are used for the connecting piece and the interventional device to be processed to pass through, thereby forming a processing channel, the processing channel includes passing in the feeding direction and passing in the discharging direction; The third through hole is an elliptical or groove-shaped through hole, and the through hole is used for adjusting the spraying angle of the nozzle.

3. A blasting apparatus with a particulate buffer recovery enclosure according to claim 2, wherein, Normal extension covering bristles are arranged on the inner edges of the first through hole, the second through hole and the third through hole; an electrostatically treated adsorption layer is arranged outside the covering bristles.

4. A blasting apparatus with a particle buffer recovery enclosure according to claim 2, wherein, The bottom shell has an inclined surface inclined downward, and a cleaning port is arranged at the end of the inclined surface; the bottom shell is provided with a vibrating screen, and the vibrating screen applies a vibration auxiliary with a certain frequency to the inclined surface.

5. The sandblasting device with a particle buffer recovery housing according to claim 1, characterized in that, The first support assembly includes a first driving piece, a first transmission structure, a first guide structure and a mounting table; The mounting table is used for mounting the spraying assembly and the splash-proof box body; the mounting table is slidably connected with the support panel through the first guide structure; the mounting table is connected with the first driving piece through the first transmission structure, and the first driving piece provides power to drive the mounting table to move in the guide rail direction.

6. A blasting apparatus with a particulate buffer recovery enclosure according to claim 5, wherein, The first support assembly further includes a movable table, and a mounting stand is arranged on the movable table; the spraying assembly is mounted on the movable table through the mounting stand; the movable table is connected with the mounting table through a sliding groove, and the position of the movable table on the mounting table is adjusted through the sliding groove, so that the relative position of the spraying assembly and the splash-proof box body is adjusted.

7. The sandblasting device with a particle buffer recovery enclosure of claim 1, wherein, The second support assembly comprises a second driving member and a clamping rotary drum structure; the clamping rotary drum structure is rotationally connected with the support panel through a connecting plate, and two clamping rotary drum structures are respectively arranged on two sides of the splash-proof box body and used for fixing the end of the connecting member; power is provided by the second driving member to drive the two clamping rotary drum structures to rotate, so that the to-be-processed interventional device fixed to the connecting member is rotated; The second support assembly further comprises an auxiliary bracket, and the auxiliary bracket plays an auxiliary supporting role on the connecting member.

8. A sandblasting method, characterized by, The method comprises the following steps, A pre-adjustment step: providing the sand blasting device with the particle buffer recovery shell according to any one of claims 1-7; based on the processing requirements and parameters of the to-be-processed interventional device, pre-adjusting the sand blasting pressure, working medium and angular position parameters of the spraying assembly; Adjusting the relative position of the splash-proof box body and the spraying assembly through the movable table to make the nozzle be in the best spraying position; A loading step: connecting the two ends of the to-be-processed interventional device with the connecting members respectively, and fixing the connecting members through the first perforation and the second perforation and the two clamping rotary drum structures; thereby forming a processing channel in the inner cavity; Starting the spraying assembly to spray the working medium on the surface of the to-be-processed interventional device until the sand blasting is completed; A discharging step: removing the connecting members on the two clamping rotary drum structures, and taking out the to-be-processed interventional device under the traction of the connecting members.

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