A manufacturing apparatus and a manufacturing method of an embolic protection device

Abstract

This application discloses a processing equipment and method for an embolism protection device. The embolism protection device includes a support frame and a filter screen connected to the support frame. The processing equipment includes a mold and a power supply component. The mold includes a first mold and a second mold that fit together movably to clamp the support frame and the filter screen. At least one of the first mold and the second mold has a hollow area exposing the center of the filter screen. The power supply component is used to heat the support frame clamped by the mold. This application integrates the shaping of the filter screen and the connection between the filter screen and the support frame. The extent to which the filter screen wraps around the annular frame can be adjusted according to changes in pressure and elasticity, improving production efficiency and reducing operational difficulty.

Description

Technical Field

[0001] This application relates to the technical field of an embolism protection device, and more particularly to a processing equipment and processing method for an embolism protection device. Background Technology

[0002] Embolism protection devices generally consist of a filter screen and a support frame fixed to the filter screen. In some special environments, the filter screen needs to have a special shape, and the support frame is used to adapt to the surrounding environment to restrict the movement of the filter screen, thereby achieving effective filtration. Currently, after the filter screen is pre-shaped into a special shape, it is then connected to the support frame by manually applying adhesive, which is inefficient and has a low pass rate. This is especially true when some support frames have a certain degree of elasticity, further increasing the difficulty of operation. Summary of the Invention

[0003] This application provides a processing equipment for embolism protection devices, which improves the production quality and efficiency of embolism protection devices.

[0004] This application provides a processing apparatus for an embolism protection device. The embolism protection device includes a support frame and a filter screen connected to the support frame. The processing apparatus includes:

[0005] The mold includes a first mold and a second mold that are movable and fit together to hold the joint of the support frame and the filter screen. At least one of the first mold and the second mold has a hollow area that exposes the middle part of the filter screen.

[0006] A power supply component for heating the support frame held by the mold.

[0007] This application also provides a processing apparatus for an embolism protection device, the embolism protection device including a support frame and a filter screen connected to the support frame, the processing apparatus including:

[0008] The mold includes a first mold and a second mold that move together. The mold also includes a first gasket disposed between the first mold and the second mold. The first gasket is made of an elastic material. During processing, the support frame and the filter screen are clamped between the first gasket and one of the first mold or the second mold. The support frame includes an annular frame and a handle connected to the annular frame. The filter screen has a first side and a second side opposite to each other in its own thickness direction. During processing, the first side of the filter screen is in contact with the annular frame, and the first gasket acts on the second side of the filter screen. The deformation of the first gasket changes the extent to which the filter screen wraps around the annular frame.

[0009] A power supply component for heating the support frame held by the mold.

[0010] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0011] Optionally, the mold further includes a first gasket disposed between the first mold and the second mold. The first gasket is made of an elastic material, and the support frame and the filter screen are clamped between the first gasket and either the first mold or the second mold during processing. This allows the support frame to be embedded in the elastic material under pressure.

[0012] Optionally, the first gasket has a first opening opposite the cutout area.

[0013] Optionally, in the working state, the first mold is the upper mold along the direction of gravity, the second mold is the lower mold, the hollow area is set in at least the second mold, and the bottom surface of the first mold has a settling area distributed around the hollow area for stacking the first gasket.

[0014] Optionally, the mold further includes a second gasket disposed between the first mold and the second mold, and the support frame and the filter screen are clamped between the first gasket and the second gasket during processing.

[0015] Optionally, both the first mold and the second mold have the hollowed-out area, and the second gasket has a second opening opposite to the hollowed-out area.

[0016] Optionally, the first gasket is made of elastic silicone material.

[0017] Optionally, the second gasket is made of PTFE.

[0018] Optionally, the first mold and the second mold have opposing first and second planes distributed around their respective hollow areas, wherein the filter screen is installed in the first mold, the support frame is installed in the second mold, the first pad is higher than the first plane, and the second pad is higher than the second plane.

[0019] Optionally, a first positioning structure for position registration is provided between the first module and the second module.

[0020] Optionally, at least one of the first module and the second module is provided with a second positioning structure that acts on the support frame.

[0021] Optionally, at least one of the first module and the second module is provided with a third positioning structure that acts on the filter screen.

[0022] Optionally, at least two positioning structures may share some or all of the components.

[0023] Optionally, the processing equipment further includes:

[0024] A shaping component that moves in and out of the hollowed-out area to shape the filter screen.

[0025] Optionally, the shaping component includes:

[0026] The crown has a shaped surface corresponding to the filter mesh configuration;

[0027] The first drive mechanism is engaged with the side of the crown facing away from the shaping surface.

[0028] Optionally, the power supply component includes a base and a coil mounted on the base, the coil heating the support frame via electromagnetic induction.

[0029] Optionally, the power supply component includes:

[0030] Base, with an inner cavity;

[0031] A coil is disposed in the inner cavity to heat the support frame through electromagnetic induction;

[0032] The second drive mechanism is in transmission cooperation with the base to drive the base to move closer to or away from the mold.

[0033] Optionally, the winding density of the coil may vary at different locations.

[0034] Optionally, the first drive mechanism and the second drive mechanism are the same drive mechanism, wherein the crown is fixed to the base.

[0035] Optionally, the processing equipment further includes a force-applying component that acts on the mold to cause a clamping tendency between the first mold and the second mold.

[0036] Optionally, the expected pressure provided by the force-applying component is adjustable to change the extent to which the filter wraps around the annular frame.

[0037] Optionally, the force-applying component is driven by gravity to approach and act on the mold.

[0038] Optionally, the force-applying component includes:

[0039] The force-applying component moves along the stacking direction of the first mold and the second mold and contacts the mold to apply pressure.

[0040] Optionally, the force-applying component further includes:

[0041] The counterweight, which may be one or multiple stacked, acts on the force-applying component along the direction of gravity.

[0042] Optionally, the force-applying component has a hollowed-out clearance area, the position of which corresponds to the power supply component;

[0043] The force-applying component also includes a linkage component that is driven by the drive mechanism. The drive mechanism drives the force-applying component to move closer to or away from the mold through the linkage component.

[0044] Optionally, the linkage component includes:

[0045] A fixing plate is fixed relative to the base, and the outer edge of the fixing plate is located around the base along the direction of gravity;

[0046] The column is configured with multiple columns, each column having its bottom fixed to the force-applying component, and each column having its top movably passing through the fixing plate with an anti-detachment head at the protruding part. The counterweight is set on the column and transmits its own weight to the force-applying component through the column.

[0047] Optionally, the counterweight is plate-shaped and is movably sleeved on the column.

[0048] Optionally, the force-applying element protrudes below the force-applying element.

[0049] Optionally, the force-applying element does not protrude below the force-applying element.

[0050] Optionally, the drive mechanism includes an upright cylinder, the piston rod of which is fixed to the base.

[0051] Optionally, the processing equipment further includes:

[0052] A workbench, on which the mold is placed, and the drive mechanism is mounted above the workbench via a support arm;

[0053] A control component is installed on the workbench and controls the drive mechanism and the power supply component accordingly.

[0054] Optionally, a guide mechanism is provided between the support arm and the piston rod of the cylinder to cooperate with each other.

[0055] Optionally, the guiding mechanism includes:

[0056] Guide sleeve, fixed to the support arm;

[0057] The guide rod is fixed relative to the piston rod of the cylinder.

[0058] Optionally, the control component includes:

[0059] The first switch controls the drive mechanism;

[0060] The second switch controls the power supply component.

[0061] Optionally, the control component further includes:

[0062] Adjust the switch to regulate the pneumatic pressure of the drive mechanism.

[0063] Optionally, the second switch is an adjustable timer switch.

[0064] Optionally, there may be multiple first switches, each corresponding to a different direction of movement of the drive mechanism.

[0065] Optionally, the direction of motion of the drive mechanism includes:

[0066] In a first direction, the shaping component and the power supply component are driven as a whole to approach the mold;

[0067] The second direction is opposite to the first direction;

[0068] There are two switches corresponding to the first direction, and their relationship is logical "AND".

[0069] Optionally, the processing equipment further includes:

[0070] A parameter acquisition and indication system that acquires and displays at least one of the following parameters:

[0071] Pneumatic pressure of the drive mechanism;

[0072] Temperature of the mold area;

[0073] The duration of one of the switch triggers;

[0074] The stroke of one of the moving parts;

[0075] The current position of one of the moving parts.

[0076] This application also provides a method for manufacturing an embolism protection device, the embolism protection device including a support frame and a filter screen, the manufacturing method including:

[0077] Step S100: A pre-cured adhesive coating is formed on the surface of the support frame;

[0078] Step S200: Align the sheet used to form the filter with the position of the support frame;

[0079] Step S300: Melt the adhesive coating to fix the sheet to the support frame via the adhesive. This application also provides a method for processing an embolism protection device, which can be implemented based on the processing equipment described in this application. The processing method includes:

[0080] Step S100: A pre-cured adhesive coating is formed on the surface of the support frame;

[0081] Step S200: After aligning the sheet material used to form the filter screen with the position of the support frame, it is clamped and fixed by the mold.

[0082] In step S300, the power supply component is used to heat the support frame and melt the adhesive coating, so that the sheet is fixed to the support frame by the adhesive.

[0083] Optionally, step S100 includes:

[0084] Step S110: Apply an adhesive to the surface of the support frame by brushing, spraying, or dipping.

[0085] Step S120: Curing the adhesive.

[0086] Optionally, the adhesive is a hot melt adhesive, such as polyurethane adhesive.

[0087] Optionally, steps S110 and S120 may be repeated at least twice to form the adhesive coating layer by layer.

[0088] Optionally, the total thickness of the adhesive coating is 0.5 to 1.2 mm, and when formed layer by layer, the thickness of each layer is 1 / 5 to 1 / 2 of the total thickness.

[0089] Optionally, the support frame includes an annular frame and a handle connected to the annular frame, the edge of the filter screen is fixed to the annular frame, and the adhesive coating at least covers the annular frame; the annular frame is a deformable structure and has a first axial direction extending between the distal and proximal ends, and a second axial direction perpendicular to the first axial direction, and the annular frame has the following relative states:

[0090] The initial state is obtained through heat treatment and shaping, and tends to the initial state in a body temperature environment;

[0091] In a compressed state, it can be loaded into a tubular fitting and delivered intracellularly;

[0092] In the expanded state, the dimensions along the first axis and the second axis are both between the initial state and the compressed state.

[0093] Optionally, step S200 includes:

[0094] Step S210: Keep the annular frame in the extended state, lay the filter screen, and make the filter screen completely cover the annular frame;

[0095] Step S220: Apply a force to the part of the filter screen corresponding to the part of the annular frame to keep the filter screen in a preset three-dimensional shape.

[0096] Optionally, along the first axis, the two ends of the annular frame are equipped with positioning rings, and the annular frame is held in the extended state by being pulled by the positioning rings.

[0097] Optionally, in the expanded state, relative to the initial state, the dimension of the annular frame along the second axis direction is reduced by 50% to 75%.

[0098] Optionally, step S210 further includes fixing both ends of the filter screen along the first axial direction.

[0099] Optionally, the filter screen has a first side and a second side opposite to each other in its thickness direction;

[0100] In step S210, the first side of the filter screen is attached to the annular frame;

[0101] In step S220, a force is applied in the direction of the first side to cause the middle part of the filter screen to bulge accordingly.

[0102] In step S220, the filter screen is pressed against the crown of a preset shape.

[0103] Optionally, the filter screen has a first portion inside the annular frame, a second portion fixed to the annular frame, and a third portion outside the annular frame;

[0104] Step S200 further includes:

[0105] Step S230: Wrap the annular frame with the second portion such that, on the cross-section of the annular frame, the second portion wraps at least 1 / 4 of the outer perimeter of the annular frame.

[0106] Optionally, in step S230, the second portion covers at least 1 / 2 of the outer perimeter of the annular frame.

[0107] Optionally, in step S230, an elastic element is used to abut against the second side of the filter screen, and the deformation of the elastic element changes the extent to which the filter screen wraps around the annular frame.

[0108] Optionally, in step S230, pressure is applied to the sequentially stacked elastic element, the third part, and the annular frame to deform the elastic element.

[0109] Optionally, in step S230, pressure is applied solely by gravity using a counterweight of preset weight.

[0110] Optionally, step S230 may be performed before or after step S220.

[0111] Optional, in chronological order, at least include:

[0112] At the first moment, the middle part of the filter screen is subjected to force and begins to be shaped;

[0113] At the second moment, pressure is applied to deform the elastic element;

[0114] At the third moment, the middle part of the filter screen bulges the highest, obtaining the preset three-dimensional shape, and pressure is applied, and the deformation of the elastic element is the largest.

[0115] Optional, in chronological order, at least include:

[0116] At the first moment, pressure is applied to deform the elastic element;

[0117] At the second moment, the deformation of the elastic element is at its maximum;

[0118] At the third moment, the center of the filter rises the highest, resulting in a preset three-dimensional shape.

[0119] Optionally, in step S300, the support frame is heated using a contact or non-contact method.

[0120] Optionally, in step S300, the support frame is heated in a non-contact manner, and the distance between the power supply component and the support frame is adjustable.

[0121] Optionally, in step S300, the support frame is heated in a non-contact manner using a coil;

[0122] The distance between the coil and the support frame is adjustable.

[0123] Optionally, in step S300, the temperature for melting the adhesive coating is 90~120 degrees Celsius, and the time is about 5~30 seconds.

[0124] Optionally, the coil moves synchronously with the crown.

[0125] Optionally, the working temperature is obtained during heating, and after the working temperature reaches a preset value, the first temperature is maintained for a first preset time, and then heating is stopped to wait for the adhesive to cure.

[0126] Optionally, after heating is stopped, the current temperature is kept below the second temperature for a second preset time to confirm that the adhesive has cured.

[0127] Optionally, different heating powers can be applied to different parts of the annular frame.

[0128] Optionally, the filter screen has a first portion within the support frame, a second portion fixed to the support frame, and a third portion outside the support frame; the processing method further includes:

[0129] Step S400: Cut the third part.

[0130] The processing equipment and method for the embolism protection device of this application can maintain the stable posture of the support frame during the operation of the filter screen and the support frame. Compared with manual operation, it improves the operation efficiency and the finished product qualification rate, and reduces the requirements for operators. Furthermore, the shaping of the filter screen and the connection between the filter screen and the support frame are integrated, which improves the operation efficiency. Attached Figure Description

[0131] Figure 1 This is a schematic diagram of the embolism protection device of this application (the support frame is in an extended state).

[0132] Figure 2 for Figure 1 A schematic diagram of the supporting frame in its initial state;

[0133] Figure 3a for Figure 2 Cross-sectional view along the BB direction;

[0134] Figure 3b for Figure 2 A cross-sectional view along the AA direction;

[0135] Figure 4 for Figure 1 A schematic diagram of the embolization protection device delivered to the aortic arch;

[0136] Figure 5a This is a flowchart illustrating a processing method for an embolism protection device according to an embodiment of this application;

[0137] Figure 5b A flowchart illustrating a method for manufacturing an embolism protection device according to another embodiment of this application;

[0138] Figure 6This is a schematic diagram of the structure of the support frame and the filter screen after heating and fusing.

[0139] Figure 7 for Figure 6 A partial cross-sectional view of one part of the supporting frame;

[0140] Figure 8a This is a partial cross-sectional view of the fusion process between the support frame and the filter screen according to an embodiment of this application;

[0141] Figure 8b for Figure 8a A partial sectional view of the third part cut out;

[0142] Figure 8c for Figure 8b Partial sectional view after the third section has been cut out;

[0143] Figure 8d for Figure 8c A partial sectional view of the third part connecting to the supporting frame;

[0144] Figure 9 This is a schematic diagram of the processing equipment for an embodiment of the embolism protection device of this application;

[0145] Figure 10 This is an exploded view of a mold, filter screen, and support frame according to an embodiment of this application;

[0146] Figure 11 for Figure 9 Front view of the processing equipment for the embolism protection device;

[0147] Figure 12 for Figure 10 Schematic diagram of the second module;

[0148] Figure 13 for Figure 12 Explosion diagram of the second model;

[0149] Figure 14 for Figure 10 A schematic diagram of the structure of the first module;

[0150] Figure 15 for Figure 14 A schematic diagram of the explosion of the first model;

[0151] Figure 16 This is a cross-sectional view of the moment when the support frame and the filter screen come into contact in the mold of this application.

[0152] Figure 17 for Figure 16 A cross-sectional view of the mold in the closed state (mold clamped);

[0153] Figure 18 for Figure 10 A schematic diagram of the structure in which the middle support frame is installed on the first mold;

[0154] Figure 19 for Figure 18 Enlarged view of section A in the middle;

[0155] Figure 20 for Figure 18 Enlarged view of section B in the middle;

[0156] Figure 21 for Figure 9 A schematic diagram of the processing equipment from another perspective;

[0157] Figure 22 for Figure 21 Schematic diagram of the structure of the crown;

[0158] Figure 23 for Figure 21 Enlarged view of section C (with pressure-applying components removed);

[0159] Figure 24 for Figure 23 Schematic diagram of the winding of the intermediate coil within the base;

[0160] Figure 25 for Figure 9 A partial structural view of the processing equipment at the pressure application component;

[0161] Figure 26 for Figure 25 Exploded view of the pressure-applying component;

[0162] Figure 27 for Figure 11 Partial view of the processing equipment;

[0163] Figure 28 for Figure 27 A partial view of the central crown and the downward-facing force-applying component;

[0164] Figure 29 for Figure 27 A cross-sectional view along the CC direction;

[0165] Figure 30 This is a partial view of a processing device (with the crown not protruding from the force-applying member) according to another embodiment of this application;

[0166] Figure 31 for Figure 30 A partial view showing the middle crown and the force-applying component descending to the point where the force-applying component applies pressure;

[0167] Figure 32 for Figure 30 A partial view of the crown of the head when it is in the second position;

[0168] Figure 33 This is a structural view of a processing device according to an embodiment of this application;

[0169] Figure 34 for Figure 33 A structural view of the processing equipment from another perspective;

[0170] The annotations in the figure are explained as follows:

[0171] 1000. Processing equipment; 10. Mold; 11. First mold; 111. Hollowed-out area; 112. First gasket; 1121. First opening; 113. First plane; 114. Settling area; 115. Receiving groove; 116. Pin; 117. Second connecting hole; 13. Second mold; 131. Hollowed-out area; 132. Second gasket; 1321. Second opening; 1322. Clearance opening; 133. Second plane; 134. First engaging component; 1341. Blocking component; 135. Second engaging component; 1351. Slot; 136. Steel wire; 137. First connecting hole; 14. Drive mechanism; 141. Cylinder; 142. Piston rod; 15. Shaping component; 151. Crown; 1511. Shaping surface; 1512. First working surface; 1513. Second working surface; 17. Power supply component; 171. Base; 172. Coil; 181. Workbench; 182. Support arm; 183. Guide sleeve; 184. Guide rod; 185. Connecting plate; 200. Force application component; 21. Force application element; 211. Clearance area; 22. Counterweight; 23. Linkage component; 231. Fixing plate; 232. Column; 233. Anti-detachment head; 3000. Embolism protection device; 31. Distal end; 32. Proximal end; 300. Support frame; 302. Positioning ring; 3 04. Blocking part; 310. Annular frame; 311. Handle; 314. Adhesive coating; 315. UV glue; 316. First side; 317. Second side; 319. Connector; 320. Thinner section; 330. Coarser section; 400. Filter screen; 410. First part; 420. Second part; 430. Third part; 51. First switch; 52. Second switch; 53. Adjusting switch; 54. Aortic arch. Detailed Implementation

[0172] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0173] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0174] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0175] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0176] like Figures 1-4 Taking an embolization protection device for cerebrovascular protection as an example, it can be delivered to the patient's aortic arch 54 or other locations with branching vessels to prevent thrombi or other foreign objects that may occur during surgery from entering the brain via the aortic arch. In the following embodiments, the distal end can be understood as the end away from the operator along the interventional path during use, and the proximal end is the end closer to the operator.

[0177] In the diagram, the embolism protection device 3000 includes a support frame 300 and a filter 400 mounted on the support frame 300. The support frame 300 includes an annular frame 310 and a handle 311 connected to the annular frame 310. The edge of the filter 400 is fixed to the annular frame 310, and the proximal end of the handle 311 is used to connect to a delivery device for interventional procedures. The annular frame 310 is a deformable structure and has the following relative states:

[0178] Initial state (e.g.) Figure 2 Without considering the force, it can tend to this state in a body temperature environment, such as approaching a circle or ellipse, having a first axis direction extending between the distal and proximal ends, and a second axis direction perpendicular to the first axis direction. Taking an ellipse as an example, a common shape is that the first axis direction corresponds to its major axis and the second axis direction corresponds to its minor axis.

[0179] In a compressed state, it can be loaded into a tube and delivered intramuscularly. In this state, it is stretched along the first axis direction to minimize the size in the second axis direction.

[0180] Extended states (such as) Figure 1 At this point, the forces exerted by surrounding tissues can be considered. The dimensions along both the first and second axes fall between the two states mentioned above, maintaining necessary contact with surrounding tissues to preserve its positioning and the desired shape of the filter. During processing, the dimensions of the expanded state are generally preset, and the filter is cut or pre-shaped accordingly to ensure it expands fully within the body and adheres closely to the tissue wall. For example... Figure 4 In the extended state, the filter screen 400 bulges are roughly ellipsoidal in shape.

[0181] The existing assembly method involves manually applying adhesive to the annular frame of the support frame and then bonding the filter screen to the support frame. This method suffers from high operational difficulty, low efficiency, and a low finished product qualification rate; furthermore, the elasticity of the support frame increases the difficulty of bonding and requires skilled operation.

[0182] like Figure 5a This application provides a method for manufacturing an embolism protection device, comprising:

[0183] Step S100: A pre-cured adhesive coating is formed on the surface of the support frame;

[0184] Step S200: Align the sheet material used to form the filter screen with the support frame.

[0185] Step S300: Melt the adhesive coating to fix the filter screen to the support frame via the adhesive.

[0186] In this embodiment, a pre-cured adhesive coating is used, which makes the position registration in step S200 easier and improves the method of gluing and registration in the prior art, which can greatly improve work efficiency. Moreover, in step S300, the various parts of the support frame are simultaneously bonded and fixed to the filter screen to ensure the quality of the operation.

[0187] Step S100 specifically includes steps S110 to S120, wherein:

[0188] Step S110: Apply an adhesive to the surface of the support frame by brushing, spraying, or dipping.

[0189] Step S120: The adhesive is cured to form a pre-cured adhesive coating. The adhesive is, for example, polyurethane adhesive (although cured in step S120, it can be heated and melted in a subsequent process due to its thermoplastic properties, and can be bonded and fixed to the support frame and filter screen after cooling again).

[0190] Specifically, the adhesive coating area includes two aspects: one ring of adhesive is applied along the extension direction of the annular frame; and at least one-quarter ring of adhesive is applied along the cross-section of the annular frame. The curing conditions of the adhesive can be conventionally applied depending on the type of adhesive, such as evaporating the solvent in the adhesive or changing the polarity of the system. When evaporating the solvent, room temperature can be used, or appropriate heating can be used, such as heating at 40~60 degrees Celsius for 0.5~3 minutes.

[0191] In one embodiment, such as Figures 2-3b The adhesive coating 314 is formed layer by layer by repeating steps S110 and S120 at least twice, which can improve the adhesion. The total thickness D3 of the adhesive coating 314 is 0.05~0.12mm. Preferably, the total thickness is 0.09mm, and the thickness of each layer is 0.03mm, that is, the operation is repeated three times. The application method of each layer of adhesive may be the same or different.

[0192] Step S200 specifically includes steps S210 to S230, wherein:

[0193] Step S210: Keep the annular frame in the extended state, lay the filter screen, and make the filter screen completely cover the annular frame;

[0194] Step S220: Apply force to the part of the filter screen corresponding to the annular frame to keep the filter screen in a preset three-dimensional shape.

[0195] In step S230, the filter screen wraps around the annular frame, and the wrap angle can be changed by adjusting the forces between them to obtain the desired connection strength.

[0196] Specifically, the method for maintaining the annular frame in an expanded state can employ a clamp or place it in an environment capable of maintaining the shape of the annular frame. The area where the filter screen is laid should extend beyond the annular frame and meet the change in filter screen deformation during step S220. In step S220, the filter screen can move relative to the annular frame to adapt to the formation of a three-dimensional shape, thereby maintaining its own porosity.

[0197] In one embodiment, along the first axial direction, the annular frame 310 is provided with a positioning ring 302 that protrudes inward or outward. For example... Figure 2 The annular frame 310 is provided with an inwardly protruding positioning ring 302. The positioning ring is located at the opposite end of the handle. The annular frame 310 can be held in an expanded state by pulling the handle together with the positioning ring 302.

[0198] The annular frame 310 can be made of a seamless ring or a ring with at least one joint, for example, the joint can be fixed by brazing, welding, or a joint connection. In this embodiment, the annular frame 310 is composed of a distal frame and a proximal frame, which are joined at their ends to form two joints. The two positioning rings 302 located at the distal and proximal ends are formed by bending the distal and proximal metal wires, respectively.

[0199] To accommodate the heating process during the fabrication of the annular frame 310, and to accommodate deformation changes in different states and adaptability within the body, the annular frame 310 is made of shape memory material, such as entirely or partially composed of nickel-titanium alloy or metal. The annular frame 310 itself can be made of a single strand of metal wire or multiple strands twisted together, and the cross-sectional deformation of the metal wire is not strictly limited, for example, it can be circular.

[0200] In this embodiment, the annular frame 310 includes segments of varying thicknesses, with a thicker segment 330 at the distal end and thinner segments 320 at the remaining positions. For example, the thicker segment 330 occupies 1 / 10 to 1 / 4 of the circumference of the entire annular frame 310, facilitating the full expansion of the embolization protection device within the body and ensuring that both sides of the second axis of the annular frame are tightly attached to the blood vessel wall, thus guaranteeing the filtration effect. For example... Figures 2-3b In the middle section, the diameter D1 of the thicker segment 330 is 0.6 mm. Figure 3b The diameter D2 of the thinner segment 320 is 0.5mm. Figure 3a The two are connected by connector 319, the outer diameter of which is D3 = 0.72 mm. Figure 2 ).

[0201] The filter screen 400 is a screen made of multiple fibers, which may be made of polymers (such as nylon, polyetheretherketone (PEEK) etc.), nickel-titanium alloys or metals (tantalum and / or platinum) or combinations thereof.

[0202] The positioning rings 302 can be two, located at the distal end 31 and proximal end 32 of the annular frame 310 along the first axis, to prevent slippage of the traction point and damage to the adhesive coating, and to effectively maintain the extended state. Compared to the initial state, in the extended state, the dimension of the annular frame 310 along the second axis is reduced by 50% to 75%.

[0203] Elements for applying tension can be provided on the two positioning rings, such as a wire or a handle 311, and the handle 311 and / or the wire are mounted on the clamp.

[0204] Step S210 further includes: fixing both ends of the filter screen along the first axis direction. The fixing method can be by using a clamp, which can be the same clamp as the clamp of the annular frame.

[0205] like Figure 7The filter screen has a first side 316 and a second side 317 opposite each other in its thickness direction;

[0206] In step S210, the first side 316 of the filter screen 400 is abutted against the annular frame 310;

[0207] In step S220, a force is applied from the second side 317 toward the first side, causing the middle part of the filter screen (located within the annular frame) to bulge accordingly. The bulging is achieved by using a crown of a preset shape to press against the filter screen.

[0208] The filter 400 has a first portion 410 inside the annular frame, a second portion 420 fixed to the annular frame 310, and a third portion 430 outside the annular frame.

[0209] In step S230, the second portion 420 is used to wrap around the annular frame 310, such that the second portion 420 covers at least 1 / 4 of the outer perimeter of the annular frame 310 to ensure bonding strength. In a preferred embodiment, the second portion 420 covers at least 1 / 2 of the outer perimeter of the annular frame.

[0210] In step S230, the elastic element abuts against the second side 317 of the filter screen, changing the extent to which the filter screen wraps around the annular frame by altering the deformation of the elastic element. Specifically, this can be achieved by changing the force applied to the elastic element (e.g., the first gasket 112 hereinafter) or the annular frame. Preferably, pressure is applied to the sequentially stacked elastic element, the third part 430, and the annular frame 310, causing the elastic element to deform. Specifically, pressure is applied to the elastic element towards the first side, and / or pressure is applied to the annular frame towards the second side. The deformation of the elastic element varies depending on the applied pressure and location. Alternatively, pressure can be applied solely by gravity using a pre-set weight.

[0211] like Figure 5b In another embodiment, step S230 may be performed before step S220, while the order of the remaining steps remains unchanged.

[0212] After completing step S200, in step S300, the support frame is heated using either contact or non-contact methods. Specifically, contact heating can be achieved by directly heating the metal support frame via electrical connection, or by heating metal clamps in contact with the support frame through heat conduction. In this embodiment, the support frame is heated non-contactly using a coil (hereinafter also referred to as an electromagnetic coil). The distance between the electromagnetic coil and the support frame is adjustable to accommodate different types of support frames or to facilitate adjustment of the heating power. Direct heating of the support frame acts on the adhesive from the inside out, further reducing potential damage to the filter 400 caused by external heating methods, improving product yield and service life. Furthermore, the winding of the electromagnetic coil can have varying density to apply different heating power to different parts of the annular frame. For example, when the wire diameter varies in different parts of the annular frame, the distance between the electromagnetic coil and the different parts of the annular frame is configured accordingly to ensure consistent heating temperature changes.

[0213] In one embodiment, the electromagnetic coil moves synchronously with the crown.

[0214] During the heating process, the operating temperature is acquired during heating. This operating temperature is obtained from the support frame, electromagnetic coil, or other components that can directly or indirectly reflect the temperature of the support frame. The operating temperature can be acquired using existing sensing elements and displayed accordingly. Once the operating temperature reaches the preset value, it is maintained at the first temperature for a first preset time to ensure that the adhesive in all parts melts. Then, heating is stopped, and the adhesive is allowed to cool and solidify. An active cooling device, such as an air-cooled device, can also be configured as needed.

[0215] When heating stops, if the current temperature is lower than the second temperature and remains below the second preset time, the adhesive curing process can be considered complete.

[0216] After the adhesive has cured, the filter screen and support frame are joined. If there are any third parts or other defects, they can be handled manually.

[0217] like Figures 6-8c Step S400 involves cutting the third part 430. Specifically, this includes cutting along the outer edge of the annular frame 310 using a cutting tool, laser, etc., with the cut area as close to the annular frame as possible. Alternatively, a cutting die adapted to the supporting frame can be used for cutting. After cutting, if a small portion of the third part 430 remains or protrudes, then... Figure 8d In step S500, the first side of the third part 430 is bonded to the annular frame 310 using an adhesive. In this embodiment, the adhesive used is UV adhesive 315.

[0218] like Figures 9-11The processing equipment 1000 for the embolism protection device provided in this application can obtain the embolism protection device by applying the processing method of the above embodiments. The embolism protection device includes a support frame 300 and a filter screen 400 connected to the support frame 300. The processing equipment 1000 includes a mold 10, a shaping component 15, and a power supply component 17. The mold 10 includes a first mold 11 and a second mold 13 that are movably fitted together to clamp the joint portion of the support frame 300 and the filter screen 400. The first mold 11 and the second mold 13 have hollow areas that expose the middle of the filter screen (including the hollow area 111 of the first mold and the hollow area 131 of the second mold). The shaping component 15 moves in and out of the hollow areas 111 and 131 to conform to and shape the filter screen 400. The power supply component 17 is used to heat the support frame 300 clamped by the mold 10.

[0219] The mold 10 has a closed state and a open state. In the open state, the filter screen 400 and the support frame 300 (after completing step S100) are respectively installed in the corresponding mold and restricted by the corresponding joint parts. The support frame 300 is restricted by the joint parts and remains in an extended state. The filter screen is restricted by the joint parts to facilitate registration with the support frame 300 in the closed state.

[0220] The hollowed-out area is located within the support frame 300, which facilitates the formation of the filter screen 400 into a preset three-dimensional shape.

[0221] In use, the annular frame can be installed on one of the first and second molds and kept in the extended state. The filter screen is laid on the other mold. The mold 10 is closed so that the filter screen completely covers the annular frame. A clamping force is applied to the first and second molds so that the filter screen wraps around the support frame 300. Then the power supply component works to heat and melt the adhesive coating to combine the filter screen with the support frame.

[0222] During the heating process, the processing equipment of this application can maintain the support frame in an extended posture combined with the filter screen, reducing operational requirements and improving the finished product qualification rate. Furthermore, the processing equipment of this application integrates the registration operation, shaping operation and heating operation, thereby improving work efficiency.

[0223] like Figures 12-15 As shown, the mold 10 also includes a first gasket 112 disposed between the first mold 11 and the second mold 13. The first gasket 112 is made of an elastic material. During processing, the joint between the support frame and the filter screen is clamped between the first gasket 112 and one of the first mold 11 and the second mold 13. This allows the support frame to be embedded in the elastic material under pressure, thereby completing the corner wrapping of the filter screen onto the annular frame, that is, the aforementioned second part of the filter screen fitting with the annular frame.

[0224] The mold also includes a second gasket 132 disposed between the first mold 11 and the second mold 13. The support frame 300 and the filter screen 400 are clamped between the first gasket 112 and the second gasket 132 during processing. The support frame 300 and the filter screen 400 are at least partially in contact, and this contact area is bonded and fixed in a subsequent process. Therefore, the contact area, i.e., the joint area, of the support frame 300 and the filter screen 400 is clamped and fixed by the mold.

[0225] The first gasket 112 has a first opening 1121 corresponding to the hollow area 111, and the second gasket 132 has a second opening 1321 corresponding to the hollow area 131. The first gasket 112 and the second gasket 132, being made of elastic material, correspond to the elastic components in the processing method.

[0226] In the diagram, in the working state (i.e., the mold-closed state), the first mold 11 is the upper mold along the direction of gravity, and the second mold 13 is the lower mold. The first mold 11 and the second mold 13 have opposing first planes 113 and second planes 133 distributed around their respective hollow areas. The filter screen 400 is installed on the first mold 11, and the support frame 300 is installed on the second mold 13. The first gasket 112 is made of an elastic material (e.g., silicone), and the second gasket 132 is made of PTFE and has a larger area than the first gasket 112. The first gasket 112 is higher than the first plane 113, and the second gasket 132 is higher than the second plane 133.

[0227] The filter 400 can be pre-shaped, and the shaping component 15 is used to maintain the shape of the filter 400 and reduce wrinkles between the filter 400 and the support frame. The pre-shaped portion of the filter 400 is placed in the hollow area.

[0228] The filter screen 400 can be laid approximately flat on the first mold 11, with no restrictions around its perimeter, and adaptably deformed by the shaping component 15. Alternatively, the filter screen 400 can be laid approximately flat on the first mold 11, with one or more positioning points on the first mold 11 restricting the movement of the filter screen 400, which deform under the action of the shaping component 15. During the above deformation process, the filtration performance of the filter screen 400 still meets the design requirements.

[0229] Combination Figure 16 and Figure 17 In the mold-closed state, the support frame 300 and the filter screen 400 are embedded in the first gasket 112 under the gravity of the first mold. The filter screen 400 deforms and wraps around and fits against a portion of the outer periphery of the support frame 300, increasing the contact area between the two and improving the connection strength. Furthermore, in the mold-closed state, the filter screen, being made of elastic material, increases the friction with the first gasket, effectively limiting the slippage of the filter screen 400 relative to the support frame 300, which is beneficial for subsequent heating operations.

[0230] Revisit Figure 15In one embodiment, the bottom surface (i.e., the first plane 113) of the first mold 11 has a settling area 114 distributed around the hollow area 111 for stacking the first pads 112. This reduces the height of the first pads 112 protruding from the first plane 113 while providing sufficient depth for the support frame 300 to sink into; and increases the connection strength between the first pads 112 and the first mold 11, preventing the first pads 112 from falling off during the mold closing process.

[0231] like Figures 12-15 ,and Figures 18-20 In some embodiments, a first positioning structure for positional alignment is provided between the first mold 11 and the second mold 13 to ensure smooth mold closing. At least one of the first mold 11 and the second mold 13 has a second positioning structure acting on the support frame 300 to keep the annular frame 310 in an expanded state. At least one of the first mold 11 and the second mold 13 has a third positioning structure acting on the filter 400 to fix the position of the filter 400 and prevent displacement during the mold closing process from affecting subsequent three-dimensional shaping. Preferably, at least two positioning structures share some or all of their components.

[0232] Figures 18-20 In the middle, the support frame 300 has a distal end 31 and a proximal end 32, corresponding to the length direction of the mold 10. The second positioning structure includes a first engaging member 134 and a second engaging member 135 protruding on the second mold 13. The first engaging member 134 and the second engaging member 135 are respectively arranged in the length direction of the second mold 13 and are located on the distal end side and the proximal end side of the support frame 300.

[0233] The support frame 300 has positioning rings 302 at its distal and proximal ends. The proximal positioning ring 302 is connected to a handle 311, which is strip-shaped. The second engaging member 135 is columnar and is mounted on the second mold 13, protruding from the second gasket 132. It also has a slot 1351 for engaging the handle 311. The slot 1351 extends to the top side of the second engaging member, facilitating the engagement or disengagement of the handle with the slot 1351.

[0234] The end of the handle 311 away from the support frame 300 has a protruding blocking part 304 that abuts against the second engaging member 135. The size of the blocking part is larger than the width of the slot 1351.

[0235] The first engaging member 134 is cylindrical and mounted on the second mold 13. The first engaging member 134 has a blocking member 1341 that extends radially to the distal end. After the positioning ring 302 at the distal end of the support frame 300 is wound with a steel wire 136, the steel wire 136 forms two strands. The two strands converge and coil below the blocking member 1341, and the steel wire 136 is blocked by the blocking member 1341 and cannot be unwound. During disassembly, the steel wire 136 can be cut directly.

[0236] In one embodiment, the second gasket 132 is provided with a clearance opening 1322 for the steel wire 136, and the steel wire 136 also has a portion that is not placed in the clearance opening 1322. The first gasket 112 covers this portion, so that the portion will be embedded in the first gasket 112 in the mold closing state. Therefore, the steel wire 136 does not affect the mold closing.

[0237] like Figure 15 The first mold 11 is provided with a receiving groove 115 for accommodating the handle 311, and the receiving groove 115 is connected to the settling area 114. This avoids the influence of the thickness of the handle 311 on the mold closing.

[0238] like Figure 10 , Figure 15 The third positioning structure includes two pins 116 mounted on the first mold 11 and arranged along the length of the mold, and the filter screen 400 has holes that are adapted to the two pins 116.

[0239] like Figures 12-14 The first positioning structure consists of two sets. One set includes a pin 116 and a first connecting hole 137 on the second mold 13 that is adapted to the pin 116. The other set includes two locking parts (a first locking part and a second locking part) and a second connecting hole 117 on the first mold 11 that is adapted to the locking parts.

[0240] like Figure 21 , Figure 22 The shaping assembly 15 includes a crown 151 having a shaping surface 1511 corresponding to the configuration of the filter 400, and a first drive mechanism that drivesly engages with one side of the crown 151 facing away from the shaping surface 1511. The crown 151 moves in a vertical direction and is perpendicular to the plane of the support frame 300.

[0241] The shaping surface 1511 is at least partially arc-shaped. As shown in the figure, the shaping surface 1511 includes an arc-shaped first working surface 1512 and a second working surface 1513 extending vertically and connected to the first working surface 1512. During the shaping process, the first working surface 1512 acts on the filter screen 400 first.

[0242] After shaping, heating is required, such as... Figures 21-24 As shown, in one embodiment, the power supply component 17 includes a base 171, a coil 172, and a second drive mechanism. The base 171 has an inner cavity; the coil 172 is disposed in the inner cavity and heats the support frame 300 through electromagnetic induction. The second drive mechanism is in transmission cooperation with the base 171, driving the base 171 to move closer to or away from the mold 10. In other embodiments, the coil 172 is disposed on the surface of the base 171, such as the bottom surface, side surface, or top surface.

[0243] The electromagnetic induction heating method can heat the support frame 300 through the mold 10 instead of directly heating the mold. That is, when the support frame reaches the preset temperature, the temperature of the mold is significantly lower than the temperature of the support frame, reducing and avoiding the impact on the structure of the filter screen 400; and expanding the range of materials that can be selected for the mold.

[0244] The maximum temperature achievable by the support frame 300 can be adjusted by controlling the base 171's proximity to and distance from the mold. Alternatively, this can be achieved by adjusting the winding density of the coil at different locations. Specifically, as... Figure 24 The base 171 is located directly above the mold. The coil 172 has the highest coil winding density in the thicker section 330, including two layers, while the coil in the thinner section 320 has only one layer.

[0245] The base 171 moves in the same direction as the crown 151. In one embodiment, the first and second drive mechanisms use the same drive mechanism 14, and the crown 151 is fixed to the base 171. In the figure, the crown 151 is fixed below the base 171. The drive mechanism 14 includes an upright cylinder 141, and the piston rod of the cylinder (hidden inside the cylinder in the figure) is fixed to the base 171.

[0246] like Figure 21 , Figures 25-29 As shown, in some embodiments, the processing equipment 1000 further includes a force-applying component 200, which acts on the mold 10 to clamp the first mold 11 and the second mold 13. This prevents the filter screen 400 from moving relative to the support frame 300 without external force, facilitating the bonding between the support frame 300 and the filter screen 400.

[0247] The force-applying component 200 applies force before heating and fusion, and maintains this force at least until the heating and fusion process is complete. In one embodiment, the force-applying component 200 is driven by gravity to approach and act on the mold 10. The force-applying component 200 includes a force-applying element 21 that moves along the stacking direction of the first mold 11 and the second mold 13 and contacts and applies pressure to the mold 10. This gravity can be provided by the force-applying element 21; alternatively, the force-applying component 200 may also include one or more stacked counterweights 22 that act on the force-applying element 21 along the direction of gravity. The number of counterweights 22 is adjusted according to the expected pressure, for example, for first gaskets with different elasticity, or to change the filter screen's wrap angle with the annular frame (the contact range between the filter screen and the cross-section of the annular frame).

[0248] In one embodiment, the force-applying component 21 has a hollowed-out avoidance area 211, the position of which corresponds to the power supply component 17; it also includes a linkage component 23 that is driven by the drive mechanism, the drive mechanism driving the force-applying component 200 to move closer to or away from the mold 10 through the linkage component 23.

[0249] The linkage component 23 includes a fixing plate 231 and a column 232. The fixing plate 231 is fixed to the base 171 and is located on the periphery of the base 171 to reduce the size of the equipment. Multiple columns 232 are configured. The bottom end of each column is fixed to the force-applying component 21, and the top end of each column moves through the fixing plate 231 and has an anti-detachment head 233 at the protruding part. The counterweight 22 is set on the column 232 and transmits its own weight to the force-applying component 21 through the column.

[0250] In the diagram, the force-applying component 21 is plate-shaped, and there are four columns 232 distributed at the four corners. The base 171 is fixedly connected to the fixed plate 231, the piston rod 142 is fixedly connected to the fixed plate 231, and the counterweight 22 is plate-shaped, movably sleeved on the column 232 and located on the top side of the fixed plate 231. The top of the column 232 is threaded with a bolt that serves as an anti-dislodgement head 233, which facilitates the adjustment of the number of counterweights 22.

[0251] like Figures 27-29 In one embodiment, the top side of the column 232 is provided with a step that abuts against the lowest counterweight 22. The crown 151 protrudes below the force-applying member 21, specifically in step S200:

[0252] At the first moment, the drive mechanism works until the crown abuts against the middle of the filter screen, ready to begin subsequent shaping;

[0253] At the second moment, driven by the drive mechanism, the middle of the filter screen has begun to bulge, even approaching the preset three-dimensional shape. At this moment, the mold is subjected to pressure from the force application component, causing the elastic element to begin to deform.

[0254] At the third moment, the drive mechanism stops working, the middle of the filter screen rises to its highest point, achieving the preset three-dimensional shape, and the force-applying component completes the application of pressure, with the elastic element exhibiting the greatest deformation.

[0255] like Figures 30-32 In another embodiment, the crown 151 has a first position where it does not protrude from the force-applying member, and a second position where the crown 151 protrudes below the force-applying member to shape the filter screen. Specifically, in step S200:

[0256] At the first moment, the drive mechanism works until the force application component begins to act on the mold and apply pressure to the elastic element, causing the elastic element to begin to deform, and the crown 151 is in the first position;

[0257] At the second moment, the force-applying component completes the application of pressure to the mold, resulting in the maximum deformation of the elastic element, while the crown 151 remains in the first position;

[0258] At the third moment, the drive mechanism moves the crown downward (switching to the second position) to the middle of the filter screen, and begins to shape it until the drive mechanism stops working. At this point, the middle of the filter screen is raised to its highest point, resulting in the preset three-dimensional shape.

[0259] After the adhesive has cured, the drive mechanism first lifts the fixed plate 231 until the fixed plate 231 abuts against the bottommost counterweight 22, lifting the force application component away from the mold.

[0260] like Figure 25 , Figures 28-34 As shown, in one embodiment, the processing equipment 1000 further includes a worktable 181 and a control component. The mold 10 is placed on the worktable 181, and the drive mechanism is mounted above the worktable 181 via a support arm 182. The control component is installed on the worktable 181, along with a corresponding control drive mechanism and a power supply component 17. The support arm 182 has an L-shaped structure.

[0261] A guiding mechanism is provided between the support arm 182 and the piston rod of the cylinder to maintain the stable movement of the base 171 and the force-applying component 21. The guiding mechanism includes a guide sleeve 183 fixed to the support arm 182 and a guide rod 184 fixed relative to the piston rod of the cylinder. In the figure, the guide sleeve 183 has an H-shaped structure, the cylinder 141 is located in the middle of the guide sleeve 183, and the guide rod 184 is movably and slidably engaged with the guide sleeve 183, for example, by interlocking or forming a slide rail structure, and is distributed on both sides of the cylinder 141. The piston rod 142 and the guide rod 184 are fixedly connected to the fixed plate 231 by a connecting plate 185. When the connecting plate 185 moves upward, it eventually abuts against the bottom surface of the guide sleeve 183.

[0262] After the heating and fusion are completed, the force application component 200 can continue to press for a certain period of time (i.e., wait for the support frame 300 and the filter screen 400 to be connected), then lift the base and the force application component, open the mold 10, and remove the plug protection device 3000.

[0263] In one embodiment, the control component includes a first switch 51 for controlling the drive mechanism and a second switch 52 for controlling the power supply component 17.

[0264] Specifically, in conjunction with the processing method, where step S100 is completed:

[0265] Step S210: Install the ring frame of the support frame in the extended state on the second mold, lay the filter screen on the first mold, close the mold, and align the filter screen with the ring frame.

[0266] In one embodiment, pressing the first switch 51 executes step S220: the drive mechanism operates, and the piston rod moves downward to drive the shaping component to perform three-dimensional shaping of the filter screen;

[0267] After the shaping is completed, step S230 is executed: the force-applying component applies its own weight to the mold;

[0268] Press the second switch 52 to execute step S300: the power supply component 17 operates, heats the support frame to reach the preset temperature, melts the adhesive coating, maintains it for the first preset time, stops heating, and waits for the adhesive to cure.

[0269] After the adhesive has cured, the drive mechanism lifts the piston rod, releases the pressure of the force application component on the mold, opens the mold, and then executes steps S400 and S500.

[0270] In another embodiment, pressing the first switch 51 executes step S230: the drive mechanism works, and the piston rod moves downward to drive the force application component to apply its own weight to the mold.

[0271] After the force is applied, step S220 is executed: the piston rod continues to descend, driving the shaping component to perform three-dimensional shaping of the filter screen;

[0272] Press the second switch 52 to execute step S300: the power supply component 17 operates, heats the support frame to reach the preset temperature, melts the adhesive coating, maintains it for the first preset time, stops heating, and waits for the adhesive to cure.

[0273] After the adhesive has cured, the drive mechanism lifts the piston rod, releases the pressure of the force application component on the mold, opens the mold, and then executes steps S400 and S500.

[0274] Alternatively, there may be multiple first switches 51, each corresponding to a different direction of movement of the drive mechanism. Specifically, the direction of movement of the drive mechanism includes: a first direction in which the shaping component 15 and the power supply component 17 are generally close to the mold 10;

[0275] The second direction is opposite to the first direction;

[0276] There are two switches corresponding to the first direction, and they are connected by an AND logic. This means that the operator must press both first switches simultaneously with both hands to improve safety.

[0277] In some embodiments, the control assembly further includes an adjustment switch 53 for adjusting the pneumatic pressure of the drive mechanism. This switch is used to adjust the movement speed of the piston rod, i.e., the downward speed of the crown 151, thereby changing the movement rate of the filter screen relative to the support frame.

[0278] The processing equipment also includes:

[0279] A parameter acquisition and indication system that acquires and displays at least one of the following parameters:

[0280] Pneumatic pressure of the drive mechanism;

[0281] Temperature of the mold area;

[0282] The duration of one of the switch triggers;

[0283] The stroke of one of the moving parts;

[0284] The current position of one of the moving parts.

[0285] The moving parts mainly include the shaping assembly, piston rod, and force application assembly.

[0286] In one embodiment, a computer device is provided, comprising a processor, memory, a network interface, a display screen, and an input device connected via a system bus. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements the steps of the present invention described above. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, a trackball, or a touchpad provided on the casing of the computer device, or an external keyboard, touchpad, or mouse, etc.

[0287] The processing equipment and method for the embolism protection device of this application can maintain the stable posture of the support frame during the process of combining the filter screen and the support frame. Compared with manual operation, this improves the work efficiency and the finished product qualification rate, and reduces the requirements for operators. Furthermore, the shaping of the filter screen and the combination of the filter screen and the support frame are integrated, which improves the work efficiency.

[0288] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0289] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are quite specific and detailed. However, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A processing device for an embolism protection device, the embolism protection device comprising a support frame and a filter screen connected to the support frame, characterized in that, The processing equipment includes: The mold includes a first mold and a second mold that move together. The mold also includes a first gasket disposed between the first mold and the second mold. The first gasket is made of an elastic material. During processing, the support frame and the filter screen are clamped between the first gasket and one of the first mold or the second mold. The support frame includes an annular frame and a handle connected to the annular frame. The filter screen has a first side and a second side opposite to each other in its own thickness direction. During processing, the first side of the filter screen is in contact with the annular frame, and the first gasket acts on the second side of the filter screen. The deformation of the first gasket changes the extent to which the filter screen wraps around the annular frame. A power supply component for heating the support frame held by the mold.

2. The embolic protection device processing apparatus of claim 1, wherein, The mold also includes a second gasket disposed between the first mold and the second mold, and the joint between the support frame and the filter screen is clamped between the first gasket and the second gasket during processing.

3. The embolic protection device processing apparatus of claim 2, wherein, Both the first mold and the second mold have a hollowed-out area that exposes the middle of the filter screen, including the hollowed-out area of ​​the first mold and the hollowed-out area of ​​the second mold; The first gasket has a first opening corresponding to the hollow area of ​​the first mold, and the second gasket has a second opening opposite to the hollow area of ​​the second mold; Along the direction of gravity, the first mold is the upper mold and the second mold is the lower mold. The bottom surface of the first mold has a settling area distributed around the hollow area of ​​the first mold and for stacking the first gasket.

4. The embolic protection device processing apparatus of claim 3, wherein, The processing equipment also includes: A shaping component, movable in and out of the hollowed-out area, is used to conform to and shape the filter screen. The shaping component includes: The crown portion has a shaped surface corresponding to the filter configuration; The drive mechanism engages with the side of the crown facing away from the shaped surface.

5. The embolic protection device processing apparatus of claim 3, wherein, The first mold and the second mold have opposing first and second planes distributed around their respective hollow areas, wherein the filter screen is installed in the first mold, the support frame is installed in the second mold, the first pad is higher than the first plane, and the second pad is higher than the second plane.

6. The embolic protection device processing apparatus of claim 3, wherein, The processing equipment also includes a force-applying component, which acts on the mold to cause a clamping tendency between the first mold and the second mold; The force-applying component provides adjustable expected pressure to change the extent to which the filter wraps around the annular frame.

7. The embolic protection device processing apparatus of claim 1, wherein, A first positioning structure for position registration is provided between the first module and the second module; At least one of the first mold and the second mold is provided with a second positioning structure that acts on the support frame; At least one of the first module and the second module is provided with a third positioning structure that acts on the filter screen; At least two positioning structures share some or all of the components.

8. A method of processing an embolic protection device comprising a support frame and a filter screen, characterized in that, The processing method is implemented based on the processing equipment according to any one of claims 1 to 7, and the processing method includes: Step S100: A pre-cured adhesive coating is formed on the surface of the support frame; Step S200: After aligning the sheet material used to form the filter screen with the position of the support frame, it is clamped and fixed by the mold. In step S300, the power supply component is used to heat the support frame and melt the adhesive coating, so that the sheet is fixed to the support frame by the adhesive.

9. The method of claim 8, wherein, Step S200 includes: Step S210: Keep the annular frame in the extended state, lay the filter screen, and make the filter screen completely cover the annular frame; Step S220: Apply force to the part of the filter screen corresponding to the part of the annular frame to keep the filter screen in a preset three-dimensional shape; In step S230, the filter screen has a first side and a second side opposite to each other in its thickness direction. The first pad, which is an elastic member, is applied to the second side of the filter screen. The deformation of the elastic member changes the extent to which the filter screen wraps around the annular frame. Step S230 is either before or after step S220.

10. The method of claim 9, wherein, The filter screen has a first part inside the annular frame, a second part fixed to the annular frame, and a third part outside the annular frame. In step S230, the second part is used to wrap the annular frame such that, in the cross-section of the annular frame, the second part wraps at least 1 / 4 of the outer perimeter of the annular frame.

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