Balloon manufacturing equipment

Abstract

The utility model relates to the technical field of medical instrument manufacturing, in particular to balloon manufacturing equipment. The equipment comprises a balloon fixing device, an inflating device and a laser emitting device, the inflating device comprises an inflating pipeline, and at least one inflating hole is formed in the inflating pipeline; the balloon is arranged on the inflation pipeline in a sleeving manner and is fixedly connected with the inflation pipeline through the balloon fixing device; at least one inflation hole is positioned in the balloon; the laser emitting device is arranged on the outer side of the balloon, and the laser emitting device emits laser to the shoulder part of the balloon and the pin of the balloon; the laser emitting device comprises a laser emitter and a laser driving device; laser spots are generated on the surface of a high polymer material to be ablated through the laser emitting device, laser ablation of the high polymer material is achieved, the thicknesses of the shoulder and the pin of the balloon are reduced, and then the working performance of the balloon is improved; the laser driving device is arranged so that the laser emitter can generate laser spots which rapidly move on the surface of the balloon, and the flexibility of laser ablation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical device manufacturing, and in particular to a balloon manufacturing device. Background Art

[0002] Interventional therapy is another major treatment method besides drug therapy, surgical treatment and chemical / radiotherapy. The medical devices commonly used in interventional therapy include a balloon part; the balloon is divided into a working section, a distal shoulder, a distal pin, a proximal shoulder and a proximal pin; the shoulder and the pin of the balloon are smaller than the diameter of the working section of the balloon; therefore, during the preparation process, the wall thickness at the shoulder and the pin of the balloon is often greater than the wall thickness of the working section, which leads to a greater stiffness of the balloon, a lower flexibility of the balloon, and lower working performance of the balloon such as passability, pushing ability and tracking ability, which in turn affects the therapeutic effect of interventional therapy. Summary of the invention

[0003] In response to the above-mentioned problems in the prior art, the purpose of the present application is to use a laser emitting device to generate a laser spot on the surface of the polymer material to be ablated, thereby realizing the characteristics of laser ablation of the polymer material, reducing the thickness of the balloon shoulder and the pin, and thereby improving the working performance of the balloon.

[0004] In order to solve the above problems, the present application provides a balloon manufacturing device, including a balloon fixing device, an inflation device and a laser emitting device.

[0005] The inflation device comprises an inflation pipeline, and the inflation pipeline is provided with at least one inflation hole;

[0006] The balloon is sleeved on the inflation pipeline, and the balloon is fixedly connected to the inflation pipeline through the balloon fixing device; the at least one inflation hole is located in the balloon;

[0007] The laser emitting device is arranged on the outside of the balloon, and the laser emitting device emits laser toward the shoulder of the balloon and the pin of the balloon;

[0008] The laser emitting device comprises a laser emitter and a laser driving device, and the laser driving device is drivingly connected to the laser emitter;

[0009] Driven by the laser driving device, the laser emitter moves away from or close to the inflation pipeline.

[0010] In the embodiment of the present application, the laser driving device includes a laser rotating device and a laser moving device, the laser rotating device is fixedly connected to the laser emitter, and the laser moving device is drivingly connected to the laser rotating device;

[0011] Under the drive of the laser rotating device, the laser emitter rotates with the laser rotating device as the sphere center;

[0012] Driven by the laser moving device, the laser rotating device moves away from or close to the inflation pipeline.

[0013] In the embodiment of the present application, the laser emitter includes a laser emitting unit and a laser galvanometer unit, and the laser moving device is fixedly connected to the laser emitting unit;

[0014] The laser emitting unit is fixedly connected to the laser galvanometer unit;

[0015] The laser emitted by the laser emitting unit passes through the laser galvanometer unit and is emitted to the surface of the balloon.

[0016] In an embodiment of the present application, the inflation device further comprises a pipeline driving device, and the pipeline driving device is drivingly connected to the inflation pipeline;

[0017] Driven by the pipeline driving device, the balloon rotates relative to the laser emitting device.

[0018] In the embodiment of the present application, the pipeline driving device includes a pipeline rotating device and a pipeline moving device, the pipeline rotating device is fixedly connected to the inflation pipeline, and the pipeline moving device is drivingly connected to the pipeline rotating device;

[0019] Driven by the pipeline rotating device, the inflation pipeline rotates with the central axis of the inflation pipeline as the axis;

[0020] Driven by the pipeline moving device, the inflation pipeline is displaced relative to the laser emitting device along the direction of the central axis of the inflation pipeline.

[0021] In an embodiment of the present application, the balloon manufacturing device further includes a cooling system, and the cooling system is fixedly connected to the laser emitting device;

[0022] The flow direction of the gas blown toward the balloon by the cooling system and the flow direction of the air flow in the inflation pipeline are countercurrent directions.

[0023] In the embodiment of the present application, the inflation device further comprises a gas driving device, a gas transmission hose and an inflation sealing nozzle, and the gas driving device is fixedly connected to the gas transmission hose;

[0024] The gas transmission hose is sealed and connected to the inflation pipeline through the inflation sealing nozzle.

[0025] In the embodiment of the present application, one end of the inflation sealing nozzle is sealed and connected to the inflation pipeline via a cylindrical bearing, and the other end of the inflation sealing nozzle is sealed and connected to the gas transmission hose via a fixing member.

[0026] In an embodiment of the present application, a pressure regulating valve for adjusting the gas transmission rate is provided on the gas transmission hose.

[0027] In the embodiment of the present application, the manufacturing equipment of the balloon further includes a supporting device, and a limiting groove is provided on the supporting device 6, and one end of the inflation pipeline close to the gas driving device is placed in the limiting groove.

[0028] Due to the above technical solution, the balloon manufacturing device described in the present application has the following beneficial effects:

[0029] By arranging a laser emitting device on the outside of the balloon, the laser emitting device can emit laser to the shoulder and the pin of the balloon; when the laser produces a laser spot on the shoulder and the pin of the balloon, by utilizing the ablation property of the laser on polymers, the thickness of the shoulder and the pin of the balloon can be reduced, thereby improving the working performance of the balloon such as passability, pushing performance and tracking performance;

[0030] By providing a laser driving device to enable the laser emitter to generate a laser spot that moves rapidly on the balloon surface, the flexibility of laser ablation is improved, thereby increasing the application scope of laser ablation scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the structure of a balloon manufacturing device provided in an embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the balloon position structure of a balloon manufacturing device provided in an embodiment of the present application;

[0034] Figure 3 It is a schematic structural diagram of a balloon fixing device in a balloon manufacturing device provided in an embodiment of the present application;

[0035] Figure 4 It is a schematic diagram of the cylinder piston structure in a balloon manufacturing device provided in an embodiment of the present application;

[0036] Figure 5It is a schematic diagram of the connection structure between an inflation sealing nozzle and an inflation pipeline in a balloon manufacturing device provided in an embodiment of the present application;

[0037] Figure 6 It is a schematic diagram of the structure of a support device in a balloon manufacturing device provided in an embodiment of the present application.

[0038] Among them, 1-balloon fixing device, 11-fixed end, 12-sealing end, 2-inflating device, 21-inflating pipeline, 211-balloon preparation part, 212-gas delivery part, 22-pipeline driving device, 23-gas driving device, 24-gas transmission hose, 25-inflating sealing nozzle, 26-pressure regulating valve, 27-fixing part, 28-cylindrical bearing, 3-laser emitting device, 31-laser emitter, 311-laser emitting unit, 312-laser galvanometer unit, 32-laser driving device, 4-balloon, 5-cooling system, 51-cooling gas nozzle, 52-cooling injection pipeline, 6-support device, 61-limiting groove, 62-platform surface, 63-height adjustment structure, 631-abutment rod, 632-height adjustment rod, 633-adjusting screw, 7-cylinder piston structure, 71-cylinder, 72-piston. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0041] Combination Figure 1 , introduces a balloon manufacturing device provided in an embodiment of the present application, the device includes a balloon fixing device 1, an inflation device 2 and a laser emitting device 3, the inflation device 2 includes an inflation pipeline 21, and the inflation pipeline 21 is provided with at least one inflation hole; the balloon 4 is sleeved on the inflation pipeline 21, and the balloon 4 is fixedly connected to the inflation pipeline 21 through the balloon fixing device 1; at least one inflation hole is located in the balloon 4; the laser emitting device 3 is arranged on the outside of the balloon 4, and the laser emitting device 3 emits laser toward the shoulder of the balloon 4 and the pin of the balloon 4; the laser emitting device 3 includes a laser emitter 31 and a laser driving device 32, and the laser driving device is connected to the laser emitter; under the drive of the laser driving device 32, the laser emitter 31 is away from or close to the inflation pipeline 21.

[0042] In an embodiment of the present application, the balloon fixing device 1 is used to fix the two end pins of the balloon 4; the inflation device 2 is used to inflate the interior of the balloon 4 so that the working section of the balloon 4 maintains an expanded state; the laser emitting device 3 is used to perform laser ablation on the shoulders and pins of the balloon 4 through laser.

[0043] In the embodiment of the present application, the balloon 4 is sleeved on the inflation pipeline 21 so that the central axis of the balloon 4 can be aligned with the central axis of the inflation pipeline, so that the balloon 4 is coaxially arranged on the inflation pipeline 21, thereby improving the preparation accuracy of the balloon 4.

[0044] In the embodiment of the present application, by arranging a laser emitting device 3 on the outside of the balloon 4, the laser emitting device 3 can emit laser to the shoulder of the balloon 4 and the pin of the balloon 4; when the laser generates a laser spot on the shoulder and the pin of the balloon 4, by utilizing the ablation characteristics of the laser on the polymer, the thickness of the shoulder and the pin of the balloon 4 can be reduced, thereby improving the working performance of the balloon 4 such as the passability, pushing ability and tracking ability; specifically, the surface of the balloon 4 is prepared by laser ablation, which can increase the surface free energy of the material in the form of chemical cross-linking to form high-energy bonds, physical etching to increase the specific surface area, and chemical reaction to form active groups, thereby improving the bonding properties and wettability of the material, thereby reducing the viscosity of blood on the surface of the balloon 4, thereby avoiding the formation of thrombus during treatment.

[0045] In the embodiment of the present application, a laser driving device 32 is provided to enable the laser emitter 31 to generate a laser spot that moves rapidly on the surface of the balloon 4, thereby improving the flexibility of laser ablation and further increasing the application scope of laser ablation.

[0046] refer to Figure 2-3 In a specific embodiment of the present application, the inflation pipeline 21 includes a balloon preparation part 211 and a gas delivery part 212, and the pipeline diameter of the balloon preparation part 211 is larger than the pipeline diameter of the gas delivery part 212; there is a slope surface or a step surface between the balloon preparation part 211 and the gas delivery part 212; the two ends of the balloon fixing device 1 are respectively a fixed end 11 and a sealing end 12, and a threaded structure is provided on the fixed end 11, and the fixed end 11 is fixedly connected to the gas delivery part 212 through the threaded structure, and the sealing end 12 makes the end of the tube pin of the balloon 4 close to the slope surface or the step surface to achieve sealing of the balloon 4.

[0047] In a specific embodiment of the present application, at least one inflation hole is provided on the balloon preparation part 211 .

[0048] In the specific embodiment of the present application, the end of the pin of the balloon 4 is the part that needs to be removed.

[0049] In another specific embodiment of the present application, the balloon fixing device 1 is a sealing clamp, which tightly attaches the pin ends of the balloon 4 to the inflation pipeline 21 .

[0050] In a specific embodiment of the present application, the diameter of the pin of the balloon 4 matches the diameter of the inflation line 21 . Specifically, the size of the pin of the balloon 4 and the size of the inflation line 21 are interference fit sizes or transition fit sizes.

[0051] In a specific embodiment of the present application, a polytetrafluoroethylene (PTFE) coating / parylene coating is provided on the surface of the inflation tube 21 to facilitate the installation or removal of the balloon 4 and the inflation tube 21 .

[0052] In a specific embodiment of the present application, the laser emitting device 3 is used to emit a pulsed laser with a certain laser wavelength, a certain pulse width, adjustable pulse energy and adjustable repetition rate.

[0053] In the embodiment of the present application, the selection of the laser wavelength emitted by the laser emitting device 3 should meet the following requirements: 1) Determine the absorption peak laser corresponding to the balloon 4 based on the absorption spectrum corresponding to the surface material of the balloon 4; 2) Based on the fact that the molar coefficient of the infrared laser segment is lower than that of the ultraviolet laser segment, the laser segment with a low laser molar coefficient - the ultraviolet laser segment - is preferentially selected from the absorption peak laser; 3) Both the photoelectric effect and the photothermal effect are related to the laser wavelength. Specifically, in the laser ablation of the balloon 4, the photoelectric effect should be as high as possible and the photothermal effect as low as possible. Therefore, a laser segment with a small laser wavelength is selected.

[0054] The following takes the selection of laser wavelength during laser ablation of a balloon 4 whose surface material is a PEBA (block polyether polyamide, a block polymer) polymer material as an example; specifically, the PEBA (block polyether polyamide, a block polymer) polymer material is a pebax 7033 brand (referring to a block copolymer composed of PA12 and a polyether portion), specifically, it is polymerized from PA12 (73%), PTMO (25%), and adipic acid (2%), and contains carbamoyl (amide), ether bonds, ester groups, a small amount of hydroxyl and carboxyl functional groups, and the -C=0- bonds in the amide and ester groups are chromophores in the ultraviolet region, and have an n→π* transition form. This property makes PEBAX 7033 (also known as an amide polymer) have absorption peaks in the near-ultraviolet (200-380nm) and visible light regions (380-760nm). Combined with the above laser wavelength selection principle, from the perspective of increasing the absorption coefficient and reducing the photothermal effect, an excimer laser of about 190-350nm should be selected to ablate PEBAX 7033, preferably, ArF (wavelength 193nm) laser. At the same time, considering the high cost of using and maintaining excimer lasers, lasers in the visible light band can also be used to ablate PEABX7033, such as green light of about 500-560nm.

[0055] In the embodiment of the present application, the selection of laser pulse width and pulse energy should meet the following requirements: 1) The laser pulse width is much smaller than the cooling time of the electrons in the balloon 4 material, at least one order of magnitude smaller; 2) The peak power density of the laser ablation on the surface of the balloon 4, which is jointly determined by the pulse energy, pulse width and spot size, should be greater than or equal to 10^10 W / cm 2 .

[0056] In polymer materials, the electron cooling time is about 1ps, therefore, the laser pulse width should be less than 0.1ps, that is, the laser emitting device 3 is a femtosecond laser device; at this time, the shared electrons on the covalent bonds of the polymer material absorb the laser energy, because the laser pulse width is much smaller than the electron cooling time and has sufficient pulse energy, so when the electrons have not completed all the energy transfer, their average kinetic energy is already able to destroy the high-bond energy covalent bonds, and further ionize the outer electrons of the nucleus to become free electrons, macroscopically changing from a solid state to a plasma state; in summary, the pulse energy can be selected between 10 and 20uJ, and in the specific implementation process, the selection range of the laser pulse width and the laser pulse can be expanded based on the increase of the ablation material and the ablation size.

[0057] In the embodiment of the present application, the laser repetition frequency is determined based on the total time of laser ablation, the path of laser ablation and the laser ablation range of the surface material of the balloon 4; the path of laser ablation represents the movement path of the light spot during the laser ablation process.

[0058] In the embodiment of the present application, the laser driving device 32 includes a laser rotating device and a laser moving device. The laser rotating device is fixedly connected to the laser emitter 31, and the laser moving device is drivingly connected to the laser rotating device. Under the drive of the laser rotating device, the laser emitter 31 rotates with the laser rotating device as the center of the ball. Under the drive of the laser moving device, the laser rotating device moves away from or close to the inflation pipeline 21.

[0059] In a specific embodiment of the present application, the laser moving device may be a robotic arm or other mechanical transport device.

[0060] In the embodiment of the present application, driven by the laser moving device, the laser rotating device moves away from or close to the inflation line 21, and the laser rotating device is fixedly connected to the laser emitter 31, thereby driving the laser emitter 31 away from or close to the balloon 4; that is, the driving connection between the laser moving device and the laser rotating device indicates that the laser emitter 31 has a first laser degree of freedom of movement relative to the balloon 4; driven by the laser rotating device, the laser emitter 31 rotates with the laser rotating device as the center of the sphere, thereby realizing the second laser degree of freedom A that the laser emitter 31 can move relative to the inflation line 21; that is, the driving connection between the laser optional device and the laser emitter indicates that the laser emitter 31 can move relative to the balloon 4. Specifically, the first laser degree of freedom can realize the size adjustment of the light spot on the surface of the balloon 4; the second laser degree of freedom can ensure that during the laser ablation process, it adapts to the changes in the shoulder size of the balloon 4, thereby ensuring that the size of the light spot on the surface of the balloon 4 does not change.

[0061] In a specific embodiment of the present application, a triangular coordinate system is established in space, wherein the direction of the Z axis refers to the up and down direction, the direction of the Y axis refers to the left and right direction, and the direction of the X axis refers to the front and back direction; preferably, the laser rotation device and the light emitter 31 move in the yz plane; that is, the first laser degree of freedom refers to the degree of freedom of movement along the Z axis direction; the second laser degree of freedom refers to the pendulum motion in the yz plane with the laser rotation device as the center.

[0062] In the embodiment of the present application, the first laser degree of freedom and the second laser degree of freedom are set to control the drive of the laser emitter 31, and then the spot size is adjusted by the first laser degree of freedom, and the spot size is ensured to remain unchanged during the ablation process by the second laser degree of freedom, thereby achieving uniformity of laser ablation, and at the same time being adaptable to various application scenarios such as laser ablation of polymer material welds and laser ablation of the shoulder and pin of the balloon 4, thereby improving the application scenarios of the preparation of the balloon 4.

[0063] refer to Figure 4 In a specific embodiment of the present application, the laser rotating device is fixedly connected to the laser emitter 31 through multiple groups of cylinder-piston structures 7; specifically, a group of cylinder-piston structures 7 includes a matching cylinder 71 and a piston 72; the gas in the cylinder 71 presses against the piston 72 so that the laser rotating device clamps the laser emitter 31.

[0064] In a specific embodiment of the present application, the number of the cylinder-piston structures 7 can be four or six.

[0065] In the embodiment of the present application, the laser emitter 31 includes a laser emitting unit 311 and a laser galvanometer unit 312; the laser moving device is fixedly connected to the laser emitting unit 311; the laser emitting unit 311 is fixedly connected to the laser galvanometer unit 312; the laser emitted by the laser emitting unit 311 passes through the laser galvanometer unit 312 and is emitted to the surface of the balloon 4.

[0066] In the embodiment of the present application, the laser galvanometer unit 312 is used to control the high-speed and precise movement of the laser spot on the surface of the balloon 4 .

[0067] In a specific embodiment of the present application, the laser galvanometer unit 312 and the laser driving device 32 are respectively connected to the controller.

[0068] In the embodiment of the present application, a laser galvanometer unit 312 is provided so that the laser spot can move at high speed and precision on the surface of the balloon 4, which not only improves the ablation range of the laser ablation, but also reduces the accumulation of thermal effects during the laser ablation process during the continuous movement. The flow of air in the inflation line 21 takes away the heat from the surface of the balloon 4, avoids the embrittlement of the material of the balloon 4, improves the transparency of the balloon 4, and improves the rigidity of the balloon 4, thereby improving the working performance of the balloon 4.

[0069] In the embodiment of the present application, by setting the laser galvanometer unit 312, the distance between the laser emitting unit 311 and the surface of the balloon 4 can be increased; specifically, under the condition of the same spot size, the distance between the laser emitting unit 311 with the laser galvanometer unit 312 and the surface of the balloon 4 is greater than the distance between the laser emitting unit 311 without the laser galvanometer unit 312 and the surface of the balloon 4, thereby reducing the compactness of the spatial layout, reducing the spot size error caused by the fluctuation of the position change of the balloon 4, and improving the preparation accuracy of the balloon 4.

[0070] In a specific embodiment of the present application, the laser galvanometer unit 312 includes two laser reflection units, each of which corresponds to a reflection driving unit; the two laser reflection units are used to drive the light spot to move at high speed on the surface of the balloon 4, specifically, the scanning speed of the light spot is greater than 1000m / s.

[0071] In the embodiment of the present application, the inflation device 2 further includes a pipeline driving device 22 , which is drivingly connected to the inflation pipeline 21 ; under the drive of the pipeline driving device 22 , the balloon 4 rotates relative to the laser emitting device 3 .

[0072] In the embodiment of the present application, a pipeline driving device 22 is provided so that the inflation pipeline 21 can rotate, and then laser ablation can be evenly performed on the surface of the balloon 4 as the inflation pipeline 21 rotates, thereby achieving uniformity of laser ablation on the surface of the balloon 4, thereby improving the preparation accuracy of the balloon 4 and improving the working performance of the balloon 4.

[0073] In the embodiment of the present application, the pipeline driving device 22 includes a pipeline rotating device and a pipeline moving device. The pipeline rotating device is fixedly connected to the inflation pipeline 21, and the pipeline moving device is drivingly connected to the pipeline rotating device; driven by the pipeline rotating device, the inflation pipeline 21 rotates about the axis of the central axis of the inflation pipeline 21; driven by the pipeline moving device, the inflation pipeline 21 is displaced relative to the laser emitting device along the direction of the central axis of the inflation pipeline 21.

[0074] In the embodiment of the present application, the pipeline moving device can be a robotic arm or other equipment that realizes feeding movement.

[0075] In an embodiment of the present application, driven by the pipeline moving device, the inflation pipeline 21 is displaced relative to the laser emitting device along the direction of the central axis of the inflation pipeline 21; that is, the pipeline moving device and the pipeline rotating device represent the first pipeline degree of freedom that the balloon 4 fixed to the inflation pipeline 21 can move left and right relative to the pipeline driving device 22; driven by the pipeline moving device, the inflation pipeline 21 is displaced relative to the laser emitting device along the direction of the central axis of the inflation pipeline 21; the pipeline rotating device is fixedly connected to the inflation pipeline 21 to represent the second pipeline degree of freedom B that the balloon 4 fixed to the inflation pipeline 21 can rotate relative to the central axis of the inflation pipeline 21; specifically, the first pipeline degree of freedom can realize the adjustment of the position of the balloon 4; the second pipeline degree of freedom can ensure the uniformity of the surface of the balloon 4 during the laser ablation process.

[0076] In a specific embodiment of the present application, a triangular coordinate system is established in space, wherein the direction of the Z-axis refers to the up and down direction, the direction of the Y-axis refers to the left and right direction, and the direction of the X-axis refers to the front and back direction; preferably, the central axis of the inflation pipeline 21 is the Y-axis, and the inflation pipeline 21 moves with the Y-axis as a reference; that is, the first pipeline degree of freedom refers to the movement of the inflation pipeline 21 along the positive axis direction or the negative axis direction of the Y-axis; the second pipeline degree of freedom refers to the rotation of the inflation pipeline 21 with the Y-axis as the axis.

[0077] In an embodiment of the present application, the first pipeline degree of freedom and the second pipeline degree of freedom are set to control the drive of the inflation pipeline 21, so that the position of the balloon 4 is adjusted by the first pipeline degree of freedom, and the rotation of the balloon 4 is controlled by the second pipeline degree of freedom, thereby improving the convenience of preparing the balloon 4 and the uniformity of laser ablation during the preparation of the balloon 4, improving the preparation accuracy of the balloon 4, and improving the working performance of the balloon 4.

[0078] In the embodiment of the present application, by setting two degrees of freedom for each of the laser driving device 32 and the pipeline driving device 22, a four-axis operating system is formed, thereby improving the adaptability of the manufacturing equipment to the preparation of various balloons 4, thereby improving the application range of the balloon 4 preparation.

[0079] refer to Figure 4 In a specific embodiment of the present application, the pipeline rotating device is fixedly connected to the inflation pipeline 21 through multiple groups of cylinder-piston structures 7; specifically, a group of cylinder-piston structures 7 includes a matching cylinder 71 and a piston 72; the gas in the cylinder 71 presses against the piston 72 so that the pipeline rotating device clamps the inflation pipeline 21.

[0080] In the embodiment of the present application, the manufacturing equipment also includes a cooling system 5, which is fixedly connected to the laser emitting device 3; the gas flow direction blown toward the balloon 4 by the cooling system 5 and the air flow direction in the inflation pipeline 21 are countercurrent directions.

[0081] In the embodiment of the present application, the cooling system 5 is fixedly connected to the laser emitting device 3 , which indicates that the cooling system 5 changes with the position of the laser emitting device 3 .

[0082] In an embodiment of the present application, the cooling system 5 is used to carry away the heat generated during the laser ablation process by convection through the cooling air ejected from the cooling system 5 and the air in the inflation line 21 during the process of laser ablation on the surface of the balloon 4, thereby avoiding the photothermal effect during the laser ablation process, avoiding the embrittlement of the material of the balloon 4, improving the transparency of the balloon 4, and improving the rigidity of the balloon 4, thereby improving the working performance of the balloon 4.

[0083] In a specific embodiment of the present application, the cooling system 5 includes a cooling gas nozzle 51 and a cooling injection pipeline 52; one end of the cooling injection pipeline 52 is connected to a cooling gas source, part of the cooling injection pipeline 52 is fixedly connected to the laser emitter 31, and a cooling gas nozzle 51 is provided on the other end of the cooling injection pipeline 52; the cooling air flows through the cooling injection pipeline 52 and the cooling gas nozzle 51 in sequence and blows toward the surface of the balloon 4; specifically, the cooling gas nozzle 51 is arranged on a side of the laser emitting device 3 away from the laser ablation area; wherein, part of the cooling injection pipeline 52 is fixedly connected to the laser emitter 31, indicating that the cooling gas nozzle 51 moves with the movement of the laser emitter 31, so as to ensure that the gas flow direction blown toward the balloon 4 by the cooling system 5 and the gas flow direction in the inflation pipeline 21 are mutually countercurrent directions.

[0084] In a specific embodiment of the present application, the cooling spray pipeline 52 is a pipeline made of a hard material, which can be plastic or a steel pipe.

[0085] In a specific embodiment of the present application, the cooling spray pipeline 52 is a pipeline made of a flexible material, and specifically the material of the cooling spray pipeline 52 is polyvinyl chloride (PVC) plastic material.

[0086] In a specific embodiment of the present application, nitrogen may be used as cooling air, the gas pressure is 1 to 5 bar, the gas flow rate is 5 to 10 L / min, and the gas temperature is room temperature.

[0087] In other embodiments of the present application, the cooling air may also be a rare gas, and the gas pressure, gas flow rate and gas temperature are set according to specific needs.

[0088] In an embodiment of the present application, the inflation device 2 also includes a gas driving device 23, a gas transmission hose 24 and an inflation sealing nozzle 25. The gas driving device 23 is fixedly connected to the gas transmission hose 24; the gas transmission hose 24 is sealed and connected to the inflation pipeline 21 through the inflation sealing nozzle 25.

[0089] In the embodiment of the present application, the gas driving device 23 is used to drive the gas to move in the gas transmission hose 24 and the inflation pipeline 21; the gas transmission hose 24 is used to transmit the gas driven by the gas driving device 23 to the inflation pipeline 21, and the inflation sealing nozzle 25 is used to seal the connecting gap between the gas transmission hose 24 and the inflation pipeline 21.

[0090] In the embodiment of the present application, an inflation sealing nozzle 25 is provided to improve the sealing between the gas transmission hose 24 and the inflation tube, thereby avoiding gas loss, which can effectively avoid the collapse of the balloon 4, thereby improving the laser ablation uniformity of the balloon 4 and improving the preparation accuracy of the balloon 4.

[0091] refer to Figure 5 In the embodiment of the present application, one end of the inflation sealing nozzle 25 is sealed and connected to the inflation pipeline 21 through a cylindrical bearing 28, and the other end of the inflation sealing nozzle 25 is sealed and connected to the gas transmission hose 24 through a fixing member 27.

[0092] In the specific embodiment of the present application, the inflation pipeline 21 is fixedly connected to the inner shaft of the cylindrical bearing 28 .

[0093] In the embodiment of the present application, cylindrical bearings and fixings are respectively provided at both ends of the inflation sealing nozzle, so that the gas transmission hose 24 will not be driven to rotate while the inflation pipeline 21 is ensured to rotate, thereby improving the movement flexibility of the inflation pipeline 21 while ensuring the sealing of the inflation device 2.

[0094] In the embodiment of the present application, the gas driving device 23 is a compressor, and the gas in the inflation tube is compressed air; specifically, the pressure of the compressed air changes with the demand of the balloon 4.

[0095] In a specific embodiment of the present application, the pressure of the compressed air may be 6 atm, or the pressure of the compressed air may be 4 atm.

[0096] In the embodiment of the present application, a pressure regulating valve 26 for adjusting the gas transmission rate is provided on the gas transmission hose 24 .

[0097] In the embodiment of the present application, the pressure regulating valve 26 is used to adjust the pressure of the compressed air.

[0098] In the embodiment of the present application, a pressure regulating valve 26 is provided to adjust the pressure of the compressed air so that the air pressure in the inflation pipeline 21 can adapt to a variety of scenarios, thereby increasing the application range of the manufacturing equipment.

[0099] refer to Figure 6 In the embodiment of the present application, the manufacturing equipment further includes a supporting device 6 , on which a limiting groove 61 is provided, and one end of the inflation pipeline 21 close to the gas driving device 23 is placed in the limiting groove 61 .

[0100] In an embodiment of the present application, the supporting device 6 includes a platform surface 62, a limiting groove 61 is arranged on the platform surface 62, the inflation pipeline 21 is placed on the platform surface 62 through the limiting groove 61, and the limiting groove is arranged along the Y-axis direction; by setting the supporting device 6, the platform surface 62 on the supporting device 6 ensures that the inflation pipeline 21 is in a horizontal direction, thereby ensuring the stability of the spot size during the laser ablation process.

[0101] In a specific embodiment of the present application, the supporting device 6 further includes a height adjustment structure 63 , which is in contact with the platform surface 62 . The height adjustment structure 63 is used to adjust the height of the platform surface 62 , thereby adjusting the height of the inflation pipeline 21 .

[0102] In a specific embodiment of the present application, the height adjustment structure 63 includes a contact rod 631, a height adjustment rod 632 and a height adjustment screw 633; ​​wherein, the platform surface 63 is in contact with the rod body of the contact rod 631, the end of the contact rod 631 is rotatably connected to the end of the height adjustment rod 632, the height adjustment screw 633 is in contact with the rod body of the height adjustment rod 632, and as the height adjustment screw 633 moves relative to the height adjustment rod 632, the contact rod 631 slides relative to the height adjustment rod 632, thereby driving the height adjustment of the platform surface 61.

[0103] The working principle of the manufacturing device of the balloon in the embodiment of the present application is introduced as follows:

[0104] The balloon 4 is sleeved on the inflation pipeline 21, the inflation pipeline 21 is clamped with the platform surface 62, and the position of the balloon 4 is adjusted by the pipeline driving device 22, so that the laser emitting device 3 is located at the relative position of the surface of the balloon 4 to be ablated, and the balloon 4 and the inflation pipeline 21 are fixed by the balloon fixing device 1; the gas driving device 23 is started to expand the balloon 4; then, the cooling system 5 starts to spray cooling gas to the surface of the balloon 4; then, the laser emitter 31 is used to adjust the size of the laser ablation spot; the laser driving device 32 and the pipeline driving device 22 are started to start ablation of the surface of the balloon 4, the balloon 4 rotates around the central axis of the inflation pipeline 21, and the laser emitting device 3 performs laser ablation on the surface of the balloon 4 according to the preset path. At this time, the size of the laser ablation spot no longer changes until the preparation of the balloon 4 is completed.

[0105] In the embodiments of the present application, the manufacturing equipment of the balloon has the following beneficial effects:

[0106] By arranging a laser emitting device 3 on the outside of the balloon 4, the laser emitting device 3 can emit laser to the shoulder and the pin of the balloon 4; when the laser produces a laser spot on the shoulder and the pin of the balloon 4, by utilizing the laser's ablation characteristics on polymers, the thickness of the shoulder and the pin of the balloon 4 can be reduced, thereby improving the working performance of the balloon 4 such as passability, pushing ability and tracking ability.

[0107] The above description has fully disclosed the specific implementation methods of the present application. It should be pointed out that any changes made by technicians familiar with the field to the specific implementation methods of the present application do not deviate from the scope of the claims of the present application. Accordingly, the scope of the claims of the present application is not limited to the above specific implementation methods.

Claims

1. A balloon manufacturing device, characterized in that: It comprises a balloon fixing device (1), an inflation device (2) and a laser emitting device (3). The inflation device (2) comprises an inflation pipeline (21), and the inflation pipeline (21) is provided with at least one inflation hole; The balloon (4) is sleeved on the inflation pipeline (21), and the balloon (4) is fixedly connected to the inflation pipeline (21) via the balloon fixing device (1); the at least one inflation hole is located in the balloon (4); The laser emitting device (3) is arranged on the outside of the balloon (4), and the laser emitting device (3) emits laser light toward the shoulder of the balloon (4) and the pin of the balloon (4); The laser emitting device (3) comprises a laser emitter (31) and a laser driving device (32), wherein the laser driving device (32) is drivingly connected to the laser emitter (31); Driven by the laser driving device (32), the laser emitter (31) moves away from or close to the inflation pipeline (21).

2. The manufacturing device of a balloon according to claim 1, characterized in that: The laser driving device (32) comprises a laser rotating device and a laser moving device, the laser rotating device is fixedly connected to the laser emitter (31), and the laser moving device is drivingly connected to the laser rotating device; Under the drive of the laser rotating device, the laser emitter (31) rotates with the laser rotating device as the spherical center; Driven by the laser moving device, the laser rotating device moves away from or close to the inflation pipeline (21).

3. The balloon manufacturing device according to claim 2, characterized in that: The laser emitter (31) comprises a laser emitting unit (311) and a laser galvanometer unit (312), and the laser moving device is fixedly connected to the laser emitting unit (311); The laser emitting unit (311) is fixedly connected to the laser galvanometer unit (312); The laser emitted by the laser emitting unit (311) passes through the laser galvanometer unit (312) and is then emitted to the surface of the balloon (4).

4. The balloon manufacturing device according to claim 1, characterized in that: The inflation device (2) further comprises a pipeline driving device (22), wherein the pipeline driving device (22) is drivingly connected to the inflation pipeline (21); Driven by the pipeline driving device (22), the balloon (4) rotates relative to the laser emitting device (3).

5. The balloon manufacturing device according to claim 4, characterized in that: The pipeline driving device (22) comprises a pipeline rotating device and a pipeline moving device, the pipeline rotating device is fixedly connected to the inflation pipeline (21), and the pipeline moving device is drivingly connected to the pipeline rotating device; Driven by the pipeline rotating device, the inflation pipeline (21) rotates with the central axis of the inflation pipeline (21) as the axis; Driven by the pipeline moving device, the inflation pipeline (21) is displaced relative to the laser emitting device (3) along the direction of the central axis of the inflation pipeline (21).

6. The balloon manufacturing device according to claim 1, characterized in that: It also includes a cooling system (5), wherein the cooling system (5) is fixedly connected to the laser emitting device (3); The flow direction of the gas blown toward the balloon (4) by the cooling system (5) and the flow direction of the air flow in the inflation pipeline (21) are countercurrent directions.

7. The balloon manufacturing device according to claim 1, characterized in that: The inflation device (2) further comprises a gas driving device (23), a gas transmission hose (24) and an inflation sealing nozzle (25), wherein the gas driving device (23) is fixedly connected to the gas transmission hose (24); The gas transmission hose (24) is sealedly connected to the inflation pipeline (21) via the inflation sealing nozzle (25).

8. The balloon manufacturing device according to claim 7, characterized in that: One end of the inflation sealing nozzle (25) is sealedly connected to the inflation pipeline (21) via a cylindrical bearing (28), and the other end of the inflation sealing nozzle (25) is sealedly connected to the gas transmission hose (24) via a fixing member (27).

9. The balloon manufacturing device according to claim 7, characterized in that: The gas transmission hose (24) is provided with a pressure regulating valve (26) for adjusting the gas transmission rate.

10. The balloon manufacturing device according to claim 7, characterized in that: It also comprises a supporting device (6), wherein a limiting groove (61) is provided on the supporting device (6), and an end of the inflation pipeline (21) close to the gas driving device (23) is placed in the limiting groove (61).

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