Hydrophilic coating spraying device

Abstract

The hydrophilic coating spraying device comprises a spraying part and two loading parts, and the spraying part comprises an ultrasonic spraying unit, a lifting driving mechanism and a translation driving mechanism; and the loading part comprises a clamping unit, a first rotating mechanism, a first rotating arm, a second rotating mechanism, a second rotating arm, a rotating seat, a third rotating mechanism, a translation seat fixedly connected with the third rotating mechanism, and a two-dimensional translation unit. According to the spraying device, spraying of the outer side and the inner side of the support can be achieved when the support is in the contraction state. And moreover, automatic spraying of a plurality of brackets can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spraying devices, in particular to a hydrophilic coating spraying device. BACKGROUND

[0002] Venous diseases affect the quality of life of patients and can lead to serious consequences such as limb swelling and pain. In recent years, endovascular interventional therapy technology has made significant progress, among which vascular stent implantation has become a routine means for the treatment of arterial stenosis and obstruction. And some venous stents have a coating sprayed on the surface of the venous stent during production. For example, the hydrophilic coating of the venous stent helps to reduce the friction between the stent delivery system and the blood vessel wall, facilitating precise implantation, especially for tortuous blood vessels. In some cases, the inner side of the venous stent also needs to be sprayed with a hydrophilic coating, which can inhibit the aggregation of platelets on the stent skeleton, reduce the risk of postoperative thrombosis, and some coatings contain anti-proliferative drugs (such as rapamycin), which can inhibit intimal hyperplasia, and the hydrophilic property may accelerate endothelial cell coverage.

[0003] When spraying the venous stent, the venous stent is generally in a contracted state. However, if the venous stent is only in a rotating state and the spraying unit sprays from directly above, although it can achieve partial spraying of the inner side through the through hole of the stent, the inner side spraying is prone to unevenness. The unevenness of the inner side hydrophilic coating may cause differences in the biological and mechanical properties of different parts of the stent, affecting the overall performance and treatment effect of the stent. SUMMARY

[0004] The present application aims to overcome the defects of the prior art and provide a hydrophilic coating spraying device.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a spraying device comprising a spraying part and two loading parts, the spraying part comprising an ultrasonic spraying unit, a lifting driving mechanism and a translation driving mechanism; the loading part comprising a clamping unit, a first rotating mechanism, a first rotating arm, a second rotating mechanism, a second rotating arm, a rotating seat, a third rotating mechanism, a translation seat fixedly connected with the third rotating mechanism and a two-dimensional translation unit.

[0006] Further, the lifting driving mechanism can drive the ultrasonic spraying unit to lift.

[0007] Further, the translation driving mechanism can drive the lifting driving mechanism to translate.

[0008] Further, the first rotating mechanism can drive the clamping unit to rotate.

[0009] Further, the first rotating arm is fixedly connected with the first rotating mechanism.

[0010] Further, the second rotating mechanism is used to drive the first rotating arm to rotate.

[0011] Further, the second rotating arm is fixedly connected with the second rotating mechanism.

[0012] Further, the rotating seat is fixedly connected with the second rotating arm.

[0013] Further, the third rotating mechanism is used to drive the rotating seat to rotate.

[0014] Further, the two-dimensional translation unit can drive the translation seat to translate in two directions.

[0015] Further, a cabinet and a cabinet door are further included, and the spraying part and the two loading parts are installed in the cabinet.

[0016] Further, a protective gas supply unit for providing protective gas to the cabinet is further included.

[0017] Further, a temperature sensor, a humidity sensor and an oxygen sensor are installed in the cabinet.

[0018] Further, the first rotating mechanism is a servo motor or a stepping motor.

[0019] Further, the second rotating mechanism includes a motor and a gear set.

[0020] According to the requirement, the second rotating mechanism can also be a servo motor or a stepping motor.

[0021] Further, the third rotating mechanism includes a motor and a gear set.

[0022] According to the requirement, the third rotating mechanism can also be a servo motor or a stepping motor.

[0023] Further, the clamping unit comprises a rotating frame fixedly connected with the first rotating mechanism, a finger air cylinder fixedly connected with the rotating frame, an extension mechanism fixedly connected with the finger air cylinder, and an air pump fixedly connected with a movable end of the extension mechanism, wherein the air pump is provided with an air needle; two movable fingers of the finger air cylinder are fixedly connected with clamping plates; the support mounting unit can be clamped between the two clamping plates, and the support mounting unit comprises a circular ring columnar portion, a connecting plate fixedly connected with the circular ring columnar portion, and a mounting head fixedly connected with the connecting plate, wherein the mounting head is provided with a first groove, a second groove, a plurality of first communication ports in communication with the first groove, a plurality of connecting channels in communication with the first communication ports, and a plurality of second communication ports in communication with the connecting channels and the second groove, the second groove is fixedly connected with a fixed tube, the fixed tube is inserted with a movable tube, an end of the movable tube is fixedly connected with a circular ring piston, an end of the fixed tube is provided with an air nozzle, the movable tube is fixedly connected with a plurality of L-shaped rods, and an end of each L-shaped rod is fixedly connected with a rubber strip; the rubber strip comprises a strip-shaped portion fixedly connected with the L-shaped rod and an arc-shaped portion connected with the strip-shaped portion.

[0024] Further, the first groove is located at one end of the mounting head, and the second groove is located at the other end of the mounting head.

[0025] Further, the circular ring piston is in abutment with the inner side wall of the fixed tube.

[0026] Further, the air needle can be inserted into the air nozzle to suck air and inject air.

[0027] Further, under the translation driving of the L-shaped rod, the arc-shaped portion can protrude from the first communication port.

[0028] Further, one end of the arc-shaped portion is fixedly connected with one end of the connecting channel.

[0029] Further, the air nozzle is a rubber plug provided with an air needle insertion hole.

[0030] Therefore, the air needle can be inserted into the air needle insertion hole. When the air needle is not inserted into the air needle insertion hole, the air needle insertion hole is closed due to the elasticity of the rubber plug.

[0031] Further, the extension mechanism is an electric telescopic rod.

[0032] Further, one end of the extension mechanism is inserted into the circular ring columnar portion, and one end of the air pump is located in the circular ring columnar portion.

[0033] Further, one end of the intravenous stent can be inserted into the first groove and clamped by the arc-shaped portion of the rubber strip.

[0034] Further, the mounting head is in a cylindrical shape.

[0035] Further, the first communication port has three annular equidistant distribution.

[0036] Further, the connection channel has three annular equidistant distribution.

[0037] Further, the second communication port has three annular equidistant distribution, each connection channel communicates a first communication port and a second communication port.

[0038] Further, the connecting plate has three annular equidistant distribution.

[0039] Further, the clamping plate has a positioning protrusion, the circular ring column part has two groove parts, the groove parts have positioning grooves matched with the positioning protrusion.

[0040] Further, the second translation unit includes a first translation mechanism capable of driving the translation seat to translate and a second translation mechanism capable of driving the first translation mechanism to translate; the first translation mechanism includes a translation frame, a first motor fixed to one end of the translation frame, a first bearing fixed to the translation frame, a first lead screw connected to the first motor and the first bearing, and a first sliding rail fixed to the translation frame, the translation seat has a first sliding groove matched with the first sliding rail and a first threaded hole matched with the first lead screw; the second translation mechanism includes a rectangular frame, a second motor fixed to the rectangular frame, a second bearing fixed to the rectangular frame, a second lead screw connected to the second motor and the second bearing, and a second sliding rail fixed to the rectangular frame, the translation frame has a second threaded hole matched with the second lead screw and a second sliding groove matched with the second sliding rail.

[0041] Further, the rectangular frame has two second sliding rails; both ends of the translation frame have second sliding grooves.

[0042] Further, the loading part further includes an upper storage unit above the two-dimensional translation unit and a lower storage unit below the two-dimensional translation unit; the upper storage unit includes a third translation mechanism and an upper storage seat driven by the third translation mechanism, the upper storage seat has a plurality of upper storage holes, a rubber cylinder is fixed in each upper storage hole, and the mounting head of the support mounting unit can be inserted into the rubber cylinder and clamped by the rubber cylinder; the lower storage unit includes a fourth translation mechanism and a lower storage seat driven by the fourth translation mechanism, the lower storage seat has a plurality of lower storage holes.

[0043] Further, the upper storage seat has 20 or more upper storage holes.

[0044] Further, the lower storage seat has 20 or more lower storage holes.

[0045] Further, the intravenous stent can be vertically placed in the lower storage hole.

[0046] Further, the lower storage hole has a silica gel cylinder.

[0047] Therefore, the intravenous stent is placed in the silica gel cylinder, so that the intravenous stent can be placed vertically in the silica gel cylinder and can be clamped by the mounting head. The silica gel cylinder protects the intravenous stent.

[0048] Further, the mounting head has a first bar-shaped protrusion and a second bar-shaped protrusion; the rubber cylinder has a first bar-shaped groove matched with the first bar-shaped protrusion and a second bar-shaped groove matched with the second bar-shaped protrusion; the height of the first bar-shaped protrusion is greater than the height of the second bar-shaped protrusion.

[0049] Therefore, the mounting head can be correctly inserted into the rubber cylinder.

[0050] Further, the height direction is the same as the radial direction of the mounting head.

[0051] Further, the third translation mechanism includes a first mounting frame, a third motor fixed to one end of the first mounting frame, a third bearing fixed to the other end of the first mounting frame, a third screw rod connecting the third motor and the third bearing, and a third sliding rail fixed to the first mounting frame. The upper storage seat has a third threaded hole matched with the third screw rod and a third sliding groove matched with the third sliding rail.

[0052] Further, the fourth translation mechanism includes a second mounting frame, a fourth motor fixed to one end of the second mounting frame, a fourth bearing fixed to the other end of the second mounting frame, a fourth screw rod connecting the fourth motor and the fourth bearing, and a fourth sliding rail fixed to the second mounting frame. The lower storage seat has a fourth threaded hole matched with the fourth screw rod and a fourth sliding groove matched with the fourth sliding rail.

[0053] Further, the third threaded hole is relatively long, which can also be called a threaded channel.

[0054] Further, the fourth threaded hole is relatively long, which can also be called a threaded channel.

[0055] Further, the translation driving mechanism includes a third mounting frame, a fifth motor fixed to one end of the third mounting frame, a fifth bearing fixed to the other end of the third mounting frame, a fifth screw rod connecting the fifth motor and the fifth bearing, a fifth sliding rail fixed to the third mounting frame, and a sliding seat. The sliding seat has a fifth threaded hole matched with the fifth screw rod and a fifth sliding groove matched with the fifth sliding rail. The lifting driving mechanism includes an electric lifting rod and a fourth mounting frame connecting the electric lifting rod and the ultrasonic spraying unit.

[0056] The present application also discloses a spraying method based on any one of the above-mentioned spraying devices, wherein the two loading parts are respectively a first loading part and a second loading part, and the spraying method comprises the following steps: 1) The clamping unit of the first loading part clamps a bracket installation unit from the upper material storage unit of the first loading part; at the same time, the clamping unit of the second loading part clamps a bracket installation unit from the upper material storage unit of the second loading part; 2) Using the stent installation unit at the first loading section, install a venous stent from the storage unit below; 3) driving the venous stent using the first loading unit and spraying the stent using the spraying unit; 4) using the stent mounting unit at the second loading portion to clamp one end of the venous stent, and separating the stent mounting unit at the first loading portion from the end of the venous stent; 5) driving the venous stent using the second loading unit and spraying the stent using the spraying unit; 6) releasing the venous stent into the lower storage hole of the lower storage unit of the second loading portion; 7) Insert the bracket installation unit at the second loading part into the rubber tube at the upper storage unit at the second loading part; at the same time, insert the bracket installation unit at the first loading part into the rubber tube at the upper storage unit at the first loading part.

[0057] Furthermore, in step 3) and step 5), during the spraying process, the venous stent is in at least a first state, a second state, and a third state. In the first state, the venous stent is in a horizontal state; in the second state, with the rotating seat as the starting point, the angle between the venous stent and the horizontal plane is between 30-60 degrees; in the third state, the venous stent is in a vertical state.

[0058] Thus, the bracket is sprayed at different angles, and during the entire spraying process, the bracket is clamped by the two loading parts, so that both ends of the bracket have the opportunity to be exposed, thereby achieving better spraying for the inner and outer sides of the end.

[0059] Beneficial effects:

[0060] 1. The spraying device of the present application can realize spraying on the outside and inside of the stent when the stent is in a retracted state, ensuring the uniformity and integrity of the coating distribution.

[0061] 2. The spraying device of the present application can realize automatic spraying of multiple brackets, greatly improving the spraying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 Spray the bracket in a horizontal state; Figure 2 This is an enlarged view of area A; Figure 3 Detail of area B; Figure 4 Spraying with the support at an angle to the horizontal plane; Figure 5 Detail of area C; Figure 6 Detail of area D; Figure 7 Spraying with the support in the vertical position; Figure 8 Detail of area E; Figure 9 Detail of area F; Figure 10 Preparation of the first loading station for the transfer of the support to the second loading station; Figure 11 Detail of area G; Figure 12 Detail of area H; Figure 13 Spraying with the support gripped by the second loading station; Figure 14 Detail of area I; Figure 15 Detail of area J; Figure 16 Cooperation of the gripping unit and the support mounting unit Figure 17 Detail of area K; Figure 18 Detail of area L.

[0063] For the sake of clarity, Figure 16 A partial cross-sectional view is shown in the middle.

[0064] Explanation of reference signs: ultrasonic spraying unit 1, third mounting frame 1.1, fifth motor 1.2, fifth screw rod 1.3, fifth sliding rail 1.4, sliding seat 1.5, electric lifting rod 1.6, fourth mounting frame 1.7, first rotating mechanism 2, first rotating arm 2.1, second rotating mechanism 2.2, second rotating arm 2.3, rotating seat 2.4, third rotating mechanism 2.5, translating seat 2.6, rotating frame 3.1, finger air cylinder 3.2, telescopic mechanism 3.3, air pump 3.4, air needle 3.5, clamping plate 3.6, circular ring cylindrical part 4.1, connecting plate 4.2, mounting head 4.3, first strip-shaped protrusion 4.3.1, second strip-shaped protrusion 4.3.2, first groove 4.4, second groove 4.5, first communication port 4.6, connecting channel 4.7, second communication port 4.8, fixed tube 5, movable tube 5.1, circular ring-shaped piston 5.2, air nozzle 5.3, L-shaped rod 5.4, rubber strip 5.5, translating frame 6.1, first motor 6.2, first screw rod 6.3, first sliding rail 6.4, rectangular frame 7.1, second screw rod 7.2, second sliding rail 7.3, upper storage seat 8, upper storage hole 8.1, rubber cylinder 9, lower storage seat 10, lower storage hole 10.1, vein stent 11, first mounting frame 12.1, third bearing 12.2, third screw rod 12.3, third sliding rail 12.4, second mounting frame 13.1, fourth bearing 13.2, fourth screw rod 13.3, fourth sliding rail 13.4, first loading part 14, second loading part 15. DETAILED DESCRIPTION

[0065] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings, in which the same or similar components are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0066] The application provides a kind of intravenous stent hydrophilic coating spraying device as shown in the figure, including spraying part and two loading parts, the spraying part includes ultrasonic spraying unit 1, the lifting drive mechanism capable of driving ultrasonic spraying unit 1 lift and the translation drive mechanism capable of driving lifting drive mechanism translation;The loading part includes clamping unit, the first rotating mechanism 2 capable of driving clamping unit rotation, the first rotating arm 2.1 fixedly connected with the first rotating mechanism 2, the second rotating mechanism 2.2 for driving the first rotating arm 2.1 rotation, the second rotating arm 2.3 fixedly connected with the second rotating mechanism 2.2, the rotating seat 2.4 fixedly connected with the second rotating arm 2.3, the third rotating mechanism 2.5 for driving the rotating seat 2.4 rotation, the translation seat 2.6 fixedly connected with the third rotating mechanism 2.5 and the two-dimensional translation unit capable of driving translation seat 2.6 translation in two directions.The spraying device further includes cabinet and box door, and the spraying part and two loading parts are installed in the cabinet.The spraying device further includes a protective gas supply unit for providing a protective gas to the cabinet.A temperature sensor, a humidity sensor and an oxygen sensor are installed in the cabinet.

[0067] The clamping unit includes rotating frame 3.1 fixedly connected with the first rotating mechanism 2, finger air cylinder 3.2 fixedly connected with rotating frame 3.1, telescopic mechanism 3.3 fixedly connected with finger air cylinder 3.2 and air pump 3.4 fixedly connected with the active end of telescopic mechanism 3.3, the air pump 3.4 has air needle 3.5;Two active fingers of the finger air cylinder 3.2 are fixedly connected with clamping plate 3.6;The stent mounting unit can be clamped between the two clamping plates 3.6, the stent mounting unit includes circular ring cylindrical part 4.1, connecting plate 4.2 fixedly connected with circular ring cylindrical part 4.1 and mounting head 4.3 fixedly connected with connecting plate 4.2, the mounting head 4.3 has first groove 4.4 located at one end of the mounting head 4.3, second groove 4.5 located at the other end of the mounting head 4.3, a plurality of first communication ports 4.6 communicating with the first groove 4.4, a plurality of connecting channels 4.7 communicating with the first communication port 4.6 and a plurality of second communication ports 4.8 communicating with the connecting channel 4.7 and the second groove 4.5, the second groove 4.5 is fixed with fixed tube 5, the active tube 5.1 is inserted into the fixed tube 5, the end of the active tube 5.1 is fixed with circular ring piston 5.2 abutting against the inner side wall of the fixed tube 5, the end of the fixed tube 5 has air nozzle 5.3, the air needle 3.5 can be inserted into the air nozzle 5.3 to suck and inject air, the active tube 5.1 is fixedly connected with a plurality of L-shaped rods 5.4, the end of each L-shaped rod 5.4 is fixedly connected with a rubber strip 5.5, the rubber strip 5.5 includes strip-shaped part fixedly connected with the L-shaped rod 5.4 and arc-shaped part connected with the strip-shaped part, under the translation drive of the L-shaped rod 5.4, the arc-shaped part can protrude from the first communication port 4.6.

[0068] The mounting head 4.3 is cylindrical; the first communication port 4.6 has three annular equidistant distribution; the connecting channel 4.7 has three annular equidistant distribution; the second communication port 4.8 has three annular equidistant distribution, each connecting channel 4.7 communicates a first communication port 4.6 and a second communication port 4.8; the connecting plate 4.2 has three, annular equidistant distribution. The clamping plate 3.6 has a positioning protrusion, the circular cylindrical part 4.1 has two groove parts 4.1.1, the groove part 4.1.1 has a positioning groove 4.1.2 matched with the positioning protrusion. The second translation unit comprises a first translation mechanism capable of driving the translation of the translation seat 2.6 and a second translation mechanism capable of driving the translation of the first translation mechanism; the first translation mechanism comprises a translation frame 6.1, a first motor 6.2 fixed to one end of the translation frame 6.1, a first bearing fixed to the translation frame 6.1, a first lead screw 6.3 connecting the first motor 6.2 and the first bearing, and a first sliding rail 6.4 fixed to the translation frame 6.1, the translation seat 2.6 has a first sliding groove matched with the first sliding rail 6.4 and a first threaded hole matched with the first lead screw 6.3; the second translation mechanism comprises a rectangular frame 7.1, a second motor fixed to the rectangular frame 7.1, a second bearing fixed to the rectangular frame 7.1, a second lead screw 7.2 connecting the second motor and the second bearing, and a second sliding rail 7.3 fixed to the rectangular frame 7.1, the translation frame 6.1 has a second threaded hole matched with the second lead screw 7.2 and a second sliding groove matched with the second sliding rail 7.3. The loading part also surrounds an upper storage unit above the two-dimensional translation unit and a lower storage unit below the two-dimensional translation unit; the upper storage unit comprises a third translation mechanism and an upper storage seat 8 driven by the third translation mechanism, the upper storage seat 8 has a plurality of upper storage holes 8.1, a rubber cylinder 9 is fixed in the upper storage hole 8.1, the mounting head 4.3 of the support mounting unit can be inserted into the rubber cylinder 9 and clamped by the rubber cylinder 9; the lower storage unit comprises a fourth translation mechanism and a lower storage seat 10 driven by the fourth translation mechanism, the lower storage seat 10 has a plurality of lower storage holes 10.1. The upper storage seat 8 has more than 20 upper storage holes 8.1. The lower storage seat 10 has more than 20 lower storage holes 10.1. The intravenous support can be placed vertically in the lower storage hole 10.1. The lower storage hole 10.1 has a silica gel cylinder. Thus the intravenous support 11 is placed in the silica gel cylinder, so that the intravenous support can be placed vertically in the silica gel cylinder and can be clamped by the mounting head 4.3. And the silica gel cylinder protects the intravenous support.The mounting head 4.3 has a first strip-shaped protrusion 4.3.1 and a second strip-shaped protrusion 4.3.2; the rubber cylinder 9 has a first strip-shaped groove matched with the first strip-shaped protrusion 4.3.1 and a second strip-shaped groove matched with the second strip-shaped protrusion 4.3.2; the height of the first strip-shaped protrusion 4.3.1 is greater than the height of the second strip-shaped protrusion 4.3.2. Thus, the mounting head 4.3 can be correctly inserted into the rubber cylinder 9.

[0069] The third translation mechanism includes a first mounting frame 12.1, a third motor fixed to one end of the first mounting frame 12.1, a third bearing 12.2 fixed to the other end of the first mounting frame 12.1, a third screw rod 12.3 connecting the third motor and the third bearing 12.2, and a third sliding rail 12.4 fixed to the first mounting frame 12.1, the upper storage seat 8 has a third threaded hole matched with the third screw rod 12.3 and a third sliding groove matched with the third sliding rail 12.4; the fourth translation mechanism includes a second mounting frame 13.1, a fourth motor fixed to one end of the second mounting frame 13.1, a fourth bearing 13.2 fixed to the other end of the second mounting frame 13.1, a fourth screw rod 13.3 connecting the fourth motor and the fourth bearing 13.2, and a fourth sliding rail 13.4 fixed to the second mounting frame 13.1, the lower storage seat 10 has a fourth threaded hole matched with the fourth screw rod 13.3 and a fourth sliding groove matched with the fourth sliding rail 13.4. The translation driving mechanism includes a third mounting frame 1.1, a fifth motor 1.2 fixed to one end of the third mounting frame 1.1, a fifth bearing fixed to the other end of the third mounting frame 1.1, a fifth screw rod 1.3 connecting the fifth motor 1.2 and the fifth bearing, a fifth sliding rail 1.4 fixed to the third mounting frame 1.1, and a sliding seat 1.5, the sliding seat 1.5 has a fifth threaded hole matched with the fifth screw rod 1.3 and a fifth sliding groove matched with the fifth sliding rail 1.4; the lifting driving mechanism includes an electric lifting rod 1.6 and a fourth mounting frame 1.7 connecting the electric lifting rod 1.6 and the ultrasonic spraying unit 1.

[0070] Working principle: the spraying device of the application, as shown in the figure, can clamp the support mounting unit through the clamping unit, and the movable tube can be driven to translate by inserting the air needle into the air nozzle, so that when the movable tube moves to the first groove direction, the arc-shaped part of the rubber strip can protrude from the first communication port, so that when the arc-shaped parts of the plurality of rubber strips protrude, the clamping of one end of the venous support can be realized, and when the movable tube moves to the second groove direction, the arc-shaped part of the rubber strip is retracted into the connecting channel, so that the venous support is loosened. The clamping unit can clamp one support mounting unit from the upper storage unit, and one venous support can be installed by the support mounting unit from the lower storage unit, and under the drive of the loading part, it is at different angles relative to the ultrasonic spraying unit, so that spraying can be realized. And then, another loading part is used to clamp the other end of the venous support, and the previous loading part is separated from the venous support, the venous support is driven by another loading part, and is at different angles relative to the ultrasonic spraying unit, so that spraying can be realized (by the relative different angle between the support and the spraying unit, the liquid drops at the spraying position can better pass through the through hole of the venous support and be sprayed on the inside of the venous support). After spraying is completed, the sprayed venous support is placed in the lower storage hole below the lower storage unit, and then the support mounting unit is inserted back into the rubber cylinder of the upper storage unit.

[0071] Specifically, the application discloses a spraying method based on the above-mentioned venous support hydrophilic coating spraying device, two loading parts are first loading part and second loading part, the spraying method comprises the following steps: 1) the clamping unit of the first loading part clamps one support mounting unit from the upper storage unit of the first loading part; at the same time, the clamping unit of the second loading part clamps one support mounting unit from the upper storage unit of the second loading part; 2) one venous support is installed by the support mounting unit at the first loading part from the lower storage unit; 3) the venous support is driven by the first loading part, and spraying is performed by the spraying part; during spraying, the support can be first rotated in a horizontal state for spraying; then the support is at a certain angle with the horizontal plane and rotates for spraying; then the support is in a vertical state and rotates for spraying (after spraying is completed, the support can be restored to the horizontal state).

[0072] 4) one end of the venous support is clamped by the support mounting unit at the second loading part, and the support mounting unit at the first loading part is separated from the end of the venous support; 5) the venous support is driven by the second loading part, and spraying is performed by the spraying part; during spraying, the support can be first rotated in a horizontal state for spraying; then the support is at a certain angle with the horizontal plane and rotates for spraying; then the support is in a vertical state and rotates for spraying.

[0073] 6) releasing the vein stent into the lower storage hole of the lower storage unit of the second loading part; 7) inserting the stent mounting unit at the second loading part into the rubber cylinder at the upper storage unit at the second loading part; simultaneously, inserting the stent mounting unit at the first loading part into the rubber cylinder at the upper storage unit at the first loading part.

[0074] Although the present application is illustrated and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made to the application without departing from the scope of the claims.

Claims

1. A hydrophilic coating spraying device, characterized in that: It includes a spraying part and two loading parts, the spraying part includes an ultrasonic spraying unit, a lifting drive mechanism and a translation drive mechanism; the loading part includes a clamping unit, a first rotating mechanism, a first rotating arm, a second rotating mechanism, a second rotating arm, a rotating seat, a third rotating mechanism, a translation seat fixedly connected to the third rotating mechanism and a two-dimensional translation unit.

2. The hydrophilic coating spraying device according to claim 1, characterized in that: The clamping unit includes a rotating frame fixedly connected to the first rotating mechanism, a finger cylinder fixedly connected to the rotating frame, a telescopic mechanism fixedly connected to the finger cylinder, and an air pump fixedly connected to the movable end of the telescopic mechanism, the air pump having an air needle; the two movable fingers of the finger cylinder are fixedly connected to a clamping plate; the two clamping plates can clamp the bracket mounting unit, the bracket mounting unit includes an annular cylindrical portion, a connecting plate fixedly connected to the annular cylindrical portion, and a mounting head fixedly connected to the connecting plate, the mounting head having a first groove, a second groove, a plurality of first communicating ports communicating with the first groove, a plurality of connecting channels communicating with the first communicating ports, and a plurality of second communicating ports communicating with both the connecting channels and the second grooves, a fixed tube is fixed to the second groove, a movable tube is inserted into the fixed tube, a circular piston is fixed to the end of the movable tube, and an air nozzle is provided at the end of the fixed tube, a plurality of L-shaped rods are fixedly connected to the movable tube, and a rubber strip is fixedly connected to the end of each L-shaped rod, and the rubber strip includes a strip portion fixedly connected to the L-shaped rod and an arc portion connected to the strip portion.

3. The hydrophilic coating spraying device according to claim 2, characterized in that: The mounting head is cylindrical; the first communicating ports have three equally spaced portions distributed in a circular pattern; the connecting channels have three equally spaced portions distributed in a circular pattern; the second communicating ports have three equally spaced portions distributed in a circular pattern, and each connecting channel connects a first communicating port and a second communicating port; the connecting plates have three equally spaced portions distributed in a circular pattern.

4. The hydrophilic coating spraying device according to claim 2, characterized in that: The clamping plate has a positioning protrusion, and the annular cylindrical portion has two groove portions, and the groove portions have positioning grooves that match the positioning protrusion.

5. The hydrophilic coating spraying device according to claim 2, characterized in that: The second translation unit includes a first translation mechanism capable of driving the translation seat to translate and a second translation mechanism capable of driving the first translation mechanism to translate; the first translation mechanism includes a translation frame, a first motor fixed to one end of the translation frame, a first bearing fixed to the translation frame, a first screw rod connecting the first motor and the first bearing, and a first slide rail fixed to the translation frame, and the translation seat has a first slide groove cooperating with the first slide rail and a first threaded hole cooperating with the first screw rod; the second translation mechanism includes a rectangular frame, a second motor fixed to the rectangular frame, a second bearing fixed to the rectangular frame, a second screw rod connecting the second motor and the second bearing, and a second slide rail fixed to the rectangular frame, and the translation frame has a second threaded hole cooperating with the second screw rod and a second slide groove cooperating with the second slide rail.

6. The hydrophilic coating spraying device according to claim 2, characterized in that: The loading part also surrounds an upper storage unit located above the two-dimensional translation unit and a lower storage unit located below the two-dimensional translation unit; the upper storage unit includes a third translation mechanism and an upper storage seat driven by the third translation mechanism, the upper storage seat has a plurality of upper storage holes, a rubber tube is fixed in the upper storage hole, and the mounting head of the bracket mounting unit can be inserted into the rubber tube and clamped by the rubber tube; the lower storage unit includes a fourth translation mechanism and a lower storage seat driven by the fourth translation mechanism, the lower storage seat has a plurality of lower storage holes.

7. The hydrophilic coating spraying device according to claim 6, characterized in that: The third translation mechanism includes a first mounting bracket, a third motor fixed to one end of the first mounting bracket, a third bearing fixed to the other end of the first mounting bracket, a third screw rod connecting the third motor and the third bearing, and a third slide rail fixed to the first mounting bracket, and the upper storage seat has a third threaded hole that cooperates with the third screw rod and a third slide groove that cooperates with the third slide rail; the fourth translation mechanism includes a second mounting bracket, a fourth motor fixed to one end of the second mounting bracket, a fourth bearing fixed to the other end of the second mounting bracket, a fourth screw rod connecting the fourth motor and the fourth bearing, and a fourth slide rail fixed to the second mounting bracket, and the lower storage seat has a fourth threaded hole that cooperates with the fourth screw rod and a fourth slide groove that cooperates with the fourth slide rail.

8. The hydrophilic coating spraying device according to claim 1, characterized in that: The translation drive mechanism includes a third mounting frame, a fifth motor fixed to one end of the third mounting frame, a fifth bearing fixed to the other end of the third mounting frame, a fifth screw rod connecting the fifth motor and the fifth bearing, a fifth slide rail fixed to the third mounting frame, and a sliding seat, the sliding seat having a fifth threaded hole cooperating with the fifth screw rod and a fifth slide groove cooperating with the fifth slide rail; the lifting drive mechanism includes an electric lifting rod and a fourth mounting frame connecting the electric lifting rod and the ultrasonic spraying unit.

9. A spraying method based on the hydrophilic coating spraying device according to any one of claims 1 to 8, characterized in that: The two loading parts are respectively a first loading part and a second loading part, and the spraying method comprises the following steps: 1) The clamping unit of the first loading part clamps a bracket installation unit from the upper material storage unit of the first loading part; at the same time, the clamping unit of the second loading part clamps a bracket installation unit from the upper material storage unit of the second loading part; 2) Using the stent installation unit at the first loading section, install a venous stent from the storage unit below; 3) driving the venous stent using the first loading unit and spraying the stent using the spraying unit; 4) using the stent mounting unit at the second loading portion to clamp one end of the venous stent, and separating the stent mounting unit at the first loading portion from the end of the venous stent; 5) driving the venous stent using the second loading unit and spraying the stent using the spraying unit; 6) releasing the venous stent into the lower storage hole of the lower storage unit of the second loading portion; 7) Insert the bracket installation unit at the second loading part into the rubber tube at the upper storage unit at the second loading part; at the same time, insert the bracket installation unit at the first loading part into the rubber tube at the upper storage unit at the first loading part.

10. The spraying method of the hydrophilic coating spraying device according to claim 8, characterized in that: In step 3) and step 5), during the spraying process, the venous stent is in at least a first state, a second state, and a third state. In the first state, the venous stent is in a horizontal state; in the second state, with the rotating seat as the starting point, the angle between the venous stent and the horizontal plane is between 30 and 60 degrees; in the third state, the venous stent is in a vertical state.

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