High-precision etching system for surface of annular medical instrument based on laser processing
By combining three sets of laser optical devices and a visual positioning and detection device, efficient and high-precision etching of the surface of tubular medical devices is achieved, solving the problems of low efficiency, low precision and environmental pollution in existing technologies, and meeting the needs of large-scale production.
Patent Information
- Application Number
- CN202520439184.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing technologies for processing the surface of tubular medical devices suffer from problems such as low efficiency, low precision, uneven etching, difficulty in positioning, and environmental pollution, making it difficult to meet the needs of high precision and large-scale production.
Three sets of laser optical devices are evenly distributed at 120° to simultaneously etch one-third of the surface area of the tubular medical device. Combined with a visual positioning and detection device, automated control is achieved to ensure the uniformity and continuity of the etched lines and reduce human error.
It improves processing efficiency and precision, reduces scrap rate and production costs, meets the demand for high-precision etching, reduces environmental pollution, and is suitable for large-scale production.
Smart Images
Figure CN223811684U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of laser processing, more specifically, it refers to a kind of annular medical instrument surface high-precision etching system based on laser processing. BACKGROUND
[0002] In modern medical industry, tubular medical instruments such as various catheters, needle tubes and implantable tubular objects are widely used in diagnosis, treatment and surgery, and the machining precision and quality of their surfaces are crucial to the performance, safety and clinical effect of the instruments.
[0003] Traditional tubular medical instrument surface machining methods have many drawbacks. For example, mechanical machining methods are prone to stress concentration on the surface of the pipe, which not only reduces the mechanical strength of the pipe, but also affects its biocompatibility in the body, leading to potential medical risks. Although chemical etching methods can achieve a certain degree of surface patterning, due to the unevenness of chemical reactions, it is difficult to ensure the consistency of etching depth and line precision, and the use of chemical reagents often causes environmental pollution problems, and the subsequent waste liquid treatment cost is high.
[0004] With the development of laser technology, laser etching has been gradually applied to the field of medical instrument surface processing. However, the existing single-beam laser etching technology has low efficiency in processing tubular medical instruments. Due to the particularity of the tubular structure, single-head laser needs to rotate the pipe or itself around the pipe to complete the etching of the entire surface, which not only consumes time, but also is prone to uneven etching during rotation, especially for high-precision etching requirements such as annular scale lines, it is difficult to meet the strict requirements of precision and consistency in the medical industry. In addition, there is a lack of effective positioning and detection means in the traditional laser etching process, which often requires manual calibration and quality sampling, further increasing the production cost and the probability of errors, and cannot meet the large-scale and high-quality production requirements. Therefore, it is of urgent practical significance to develop a high-efficiency, high-precision and quality-stable tubular medical instrument surface laser etching system and method. SUMMARY
[0005] The utility model aims at overcoming the above insufficient of prior art, provide a kind of annular medical instrument surface high-precision etching system based on laser processing for the manufacture of tubular medical instrument.The utility model laser optics device, visual positioning detection device are connected with control device respectively, laser optics device is equipped with multiple sets, such as three sets, three sets of laser optics device are uniformly distributed according to 120 ° of working area vertical surface, each system is accurately responsible for the machining area of 1 / 3 of tubular medical instrument surface, three sets of laser optics device synchronous laser etching operation, one-time completion the processing of multiple annular scale lines or complex patterns, improve annular medical instrument surface processing efficiency and precision, avoid the error caused by rotation or movement when traditional single-head laser processing of prior art, ensure the uniformity and continuity of etching line, so that the scale line or pattern formed on tubular surface has high consistency and definition, meet the requirement of high-precision mark and pattern in medical application.
[0006] The utility model solves the technical scheme adopted by its technical problems:
[0007] A kind of annular medical instrument surface high-precision etching system based on laser processing, including laser optics device, visual positioning detection device, control device, product fixture, product fixture is installed on processing platform, the tubular medical instrument to be processed is placed on product fixture, laser optics device, visual positioning detection device are connected with control device respectively, the visual positioning detection device is set in the detection station side of carousel device, the laser optics device is equipped with multiple sets, the laser optics device includes support structure component, laser scanning component, visual positioning component, illumination component, height adjustment component, motion control component;The motion control component, height adjustment component, laser scanning component are connected with support structure component respectively, illumination component is connected with visual positioning component, the laser scanning component is used to control the path and focusing of laser beam, visual positioning component is used to realize accurate focusing and image acquisition, illumination component provides uniform background light, height adjustment component realizes the vertical position adjustment of working plane.
[0008] The laser optics device is equipped with three sets, three sets of laser optics device are uniformly distributed according to 120 ° of working area vertical surface, each system is accurately responsible for the machining area of 1 / 3 of tubular medical instrument surface, three sets of laser optics device synchronous laser etching operation, one-time completion the processing of multiple annular scale lines or complex patterns.
[0009] The support structure component includes optical bench, optical bench support;The laser scanning component includes galvanometer, field lens;The visual positioning component includes industrial camera one, telecentric lens and focusing translation stage one;The illumination component includes light source support, strip light source;Height adjustment component is lifting platform;Motion control component is laser etching linear module;
[0010] The laser etching straight line module is connected with the lower part of the optical bench support, the optical bench support is connected with the lifting platform, the lifting platform is connected with the optical bench, the optical bench is connected with the galvanometer, the galvanometer is connected with the field lens, the focusing translation stage is connected with the industrial camera, the industrial camera is connected with the telecentric lens, the telecentric lens is connected with the light source support, and the light source support is connected with the strip-shaped light source.
[0011] The visual positioning detection device comprises an imaging module, a motion control module, a support module and an illumination module.
[0012] The imaging module comprises an industrial camera II, a focusing translation stage II and a telecentric lens II.
[0013] The detection straight line module is connected with the visual support, the visual support is connected with the focusing translation stage II and the electric push rod, the focusing translation stage II is connected with the industrial camera II, the industrial camera II is connected with the telecentric lens II, the telecentric lens II is connected with the lens support, and the electric push rod is connected with the semicircular light source.
[0014] The control device is connected with the laser scanning component, the visual positioning component, the height adjusting component and the motion control component of the laser optical device.
[0015] The control device is connected with the galvanometer, the industrial camera I, the focusing translation stage I, the lifting platform and the laser etching straight line module.
[0016] The control device is connected with the detection straight line module, the electric push rod, the industrial camera II and the focusing translation stage II.
[0017] The utility model discloses the beneficial effect is:
[0018] 1. The utility model discloses laser optical device, visual positioning detection device are connected with control device respectively, and laser optical device is equipped with multiple sets, such as being equipped with three sets, and three sets of laser optical device are uniformly distributed according to 120 DEG of working area vertical plane, and each set of system is responsible for the processing area of 1 / 3 of tubular medical instrument surface accurately, and three sets of laser optical device synchronous laser etching operation completes the processing of multiple annular scale lines or complex patterns at one time, improves annular medical instrument surface processing efficiency and precision, avoids the error of traditional single -head laser processing of prior art because of rotation or movement, ensures the uniformity and continuity of etching line, makes the scale line or pattern formed on tubular surface have high consistency and definition, satisfies the requirement of high -precision mark and pattern in medical application, guarantees the accurate use and clinical operation of instrument and builds firm foundation.
[0019] 2.The utility model discloses a contrast traditional single head rotary laser etching, can complete multi-line or large area pattern processing at one time, greatly shorten the working hours, and the efficiency is improved more than 60% through actual measurement, effectively increases the production capacity, satisfies market demand, improves social benefit and economic benefit.
[0020] 3.The visual positioning detection device of the utility model can identify the size of the tubular medical instrument and the position information on the processing platform, and through the positioning data, the laser optical etching system can quickly determine the starting position and path planning of laser processing, ensure that the etching position on each tubular instrument is accurate and accurate, ensure that the etching starting point and pattern layout of each product are consistent, effectively reduce the scrap rate caused by inaccurate positioning, and improve the stability of production and the consistency of products.
[0021] The visual positioning detection device can monitor and evaluate the line clarity, depth uniformity and scale accuracy formed by laser etching, and the defective products that do not meet the preset quality standards can be removed from the production line, so as to ensure the quality of the products.
[0022] 4.The utility model discloses convenient operation, and cooperating with the automatic control system can realize automatic operation, from feeding to etching, cooperating with the system automatic operation after inputting parameters through the operation interface, simple and convenient. High production efficiency, reduce the technical requirements and labor intensity of personnel, reduce the influence of human factors, and ensure the stable, safe and controllable production.
[0023] 5.The utility model discloses can satisfy the surface processing of various material instruments, widen the technical application and market adaptation range, such as good etching to common materials such as stainless steel, titanium alloy and medical plastic, optimize processing according to the material characteristics by adjusting the laser parameters, without damaging the substrate performance.
[0024] 6.The laser processing of the utility model has high utilization rate of energy concentration, low energy consumption, reduces waste liquid and waste gas pollution, and reduces cost and environmental pollution. DETAILED DESCRIPTION
[0025] The utility model will be further described in combination with the drawings and examples:
[0026] Fig. 1 It is the structure schematic view of the laser optical device of the embodiment in the utility model;
[0027] Fig. 2 It is the structure schematic view of the visual positioning detection device of the embodiment in the utility model.
[0028] In the diagram, 38-optical bench, 39-galvanometer, 40-field lens, 41-industrial camera one, 42-focusing and panning stage one, 43-telecentric lens one, 44-light source bracket, 45-strip light source, 46-lifting platform, 47-optical bench bracket, 48-laser engraving linear module, 49-product fixture, 50-inspection linear module, 51-vision bracket, 52-electric push rod, 53-semi-circular light source, 54-lens bracket, 55-industrial camera two, 56-focusing and panning stage two, 57-telecentric lens two. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.
[0030] like Figs. 1-2 As shown, a high-precision etching system for the surface of a ring-shaped medical device based on three-head through-beam laser processing technology includes: a laser optical device, a visual positioning and detection device, a control device, and a product fixture 49. The product fixture 49 is mounted on a processing platform, and the tubular medical device to be processed is placed on the product fixture 49. The visual positioning and detection device is located on one side of the detection station of the turntable device. The laser optical device and the visual positioning and detection device are respectively connected to the control device. There are three sets of laser optical devices, which are evenly distributed at 120° along the vertical plane of the working area. Each system is precisely responsible for 1 / 3 of the processing area of the tubular medical device surface. The control device enables the synchronous laser etching operation of the three laser processing systems, completing the processing of multiple ring-shaped scale lines or complex patterns at one time, which greatly improves processing efficiency and accuracy. This layout effectively avoids the errors caused by rotation or movement in traditional single-head laser processing, ensuring the uniformity and continuity of the etched lines, so that the scale lines or patterns formed on the tubular surface have high consistency and clarity, meeting the requirements of high-precision marking and patterns in medical applications. Of course, there can be two, four, or more sets of laser optical devices. When there are four sets, the four sets of laser optical devices are evenly distributed at 90° to the vertical plane of the working area, and each system is precisely responsible for 1 / 4 of the processing area of the tubular medical device. When there are two sets, the two sets of laser optical devices are evenly distributed at 180° to the vertical plane of the working area, and each system is precisely responsible for 1 / 2 of the processing area of the tubular medical device.
[0031] The laser optical device comprises a support structure component, a laser scanning component, a visual positioning component, an illumination component, a height adjustment component, and a motion control component; the motion control component, the height adjustment component, and the laser scanning component are connected with the support structure component respectively, the illumination component is connected with the visual positioning component, the support structure component provides overall stability, the laser scanning component is used for controlling the path and focusing of a laser beam, the visual positioning component is used for realizing accurate focusing and image acquisition, the illumination component provides uniform background light, and the height adjustment component realizes vertical position adjustment of a working plane.
[0032] The support structure component comprises an optical bench 38 and an optical bench support 47.
[0033] The laser scanning component comprises a galvanometer 39 and a field lens 40.
[0034] The visual positioning component comprises an industrial camera 41, a telecentric lens 43, and a focusing translation stage 42.
[0035] The illumination component comprises a light source support 44 and a strip-shaped light source 45.
[0036] The height adjustment component is a lifting platform 46.
[0037] The motion control component is a laser etching linear module 48.
[0038] The laser etching linear module 48 is connected with the lower part of the optical bench support 47, the optical bench support 47 is connected with the lifting platform 46, the lifting platform 46 is connected with the optical bench 38, the optical bench 38 is connected with the galvanometer 39, the galvanometer 39 is connected with the field lens 40, the focusing translation stage 42 is connected with the industrial camera 41, the industrial camera 41 is connected with the telecentric lens 43, the telecentric lens 43 is connected with the light source support 44, and the light source support 44 is connected with the strip-shaped light source 45.
[0039] An electric control system is connected with the laser scanning component, the visual positioning component, the height adjustment component, and the motion control component of the laser optical device respectively, specifically: the galvanometer, the industrial camera 41, the focusing translation stage 42, the lifting platform, and the laser etching linear module, the electric control system is connected with a detection linear module 50 and an electric push rod 52 of a motion control module, and an industrial camera 55 and a focusing translation stage 56 of an imaging module.
[0040] The visual positioning detection device comprises an imaging module, a motion control module, a support module, and an illumination module; the motion control module and the imaging module are connected with the support module, the illumination module is connected with the motion control module, and a lens support 54 is connected with a visual support 51.
[0041] The imaging module comprises an industrial camera 55, a focusing translation stage 56, and a telecentric lens 57.
[0042] The motion control module comprises a detection linear module 50 and an electric push rod 52;
[0043] The support module comprises a visual support 51 and a light source support 44;
[0044] The illumination module comprises a semi-circular light source 53.
[0045] The detection linear module 50 is connected with the visual support 51, the visual support 51 is connected with a focusing translation stage two 56 and the electric push rod 52, the focusing translation stage two 56 is connected with an industrial camera two 55, the industrial camera two 55 is connected with a telecentric lens two 57, the telecentric lens two 57 is connected with a lens support 54, and the electric push rod 52 is connected with the semi-circular light source 53.
[0046] In the description of the utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the utility model and do not require the utility model to be constructed or operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In the utility model, "connected" and "connected" should be understood broadly, for example, it can be connected, and can also be detachably connected; it can be directly connected, and can also be indirectly connected through an intermediate component; for ordinary skilled persons in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0047] The above is the preferred embodiment of the utility model, and the description of the specific examples is only for better understanding the idea of the utility model. For ordinary skilled persons in the technical field, according to the principle of the utility model, several improvements or equivalent replacements can be made, and these improvements or equivalent replacements are also regarded as falling within the protection scope of the utility model.
Claims
1. A high-precision etching system for the surface of a ring-shaped medical device based on laser processing, characterized in that, The system includes a laser optical device, a visual positioning and detection device, a control device, and a product fixture. The product fixture is mounted on a processing platform, and the tubular medical device to be processed is placed on the product fixture. The laser optical device and the visual positioning and detection device are respectively connected to the control device. The visual positioning and detection device is located on one side of the detection station of the turntable device. Multiple sets of laser optical devices are provided. Each laser optical device includes a support structure component, a laser scanning component, a visual positioning component, an illumination component, a height adjustment component, and a motion control component. The motion control component, the height adjustment component, and the laser scanning component are respectively connected to the support structure component. The illumination component is connected to the visual positioning component. The laser scanning component is used to control the path and focus of the laser beam. The visual positioning component is used to achieve precise focusing and image acquisition. The illumination component provides uniform background light. The height adjustment component realizes the vertical position adjustment of the working plane.
2. The high-precision etching system for the surface of a ring-shaped medical device based on laser processing according to claim 1, characterized in that, The laser optical device consists of three sets, which are evenly distributed at 120° along the vertical plane of the working area. Each system is precisely responsible for processing 1 / 3 of the surface of the tubular medical device. The three sets of laser optical devices perform laser etching operations simultaneously, completing the processing of multiple annular scale lines or complex patterns in one go.
3. The high-precision etching system for the surface of a ring-shaped medical device based on laser processing according to claim 2, characterized in that, The supporting structure components include an optical bench and an optical bench bracket; the laser scanning components include a galvanometer and a field lens; the vision positioning components include an industrial camera, a telecentric lens, and a focusing and translation stage; the lighting components include a light source bracket and a strip light source; the height adjustment component is a lifting platform; and the motion control component is a laser etching linear module. The laser etching linear module is connected to the lower part of the optical bench support, the optical bench support is connected to the lifting platform, the lifting platform is connected to the optical bench, the optical bench is connected to the galvanometer, the galvanometer is connected to the field lens, the focusing and panning stage is connected to the industrial camera, the industrial camera is connected to the telecentric lens, the telecentric lens is connected to the light source support, and the light source support is connected to the strip light source.
4. The high-precision etching system for the surface of a ring-shaped medical device based on laser processing according to claim 1, characterized in that, The visual positioning detection device includes an imaging module, a motion control module, a support module, and an illumination module; the motion control module and the imaging module are connected to the support module, the illumination module is connected to the motion control module, and the lens bracket is connected to the visual support.
5. The high-precision etching system for the surface of a ring-shaped medical device based on laser processing according to claim 4, characterized in that, The imaging module includes an industrial camera II, a focusing and translation stage II, and a telecentric lens II; the motion control module includes a detection linear module and an electric push rod; the support module includes a vision bracket and a light source bracket; the illumination module includes a semi-circular light source; The linear detection module is connected to the vision support, the vision support is connected to the second focusing and panning stage and the electric push rod, the second focusing and panning stage is connected to the second industrial camera, the second industrial camera is connected to the second telecentric lens, the second telecentric lens is connected to the lens support, and the electric push rod is connected to the semi-circular light source.
6. The high-precision etching system for the surface of a ring-shaped medical device based on laser processing according to claim 2, characterized in that, The control device is connected to the laser scanning component, vision positioning component, height adjustment component, and motion control component of the laser optical device.
7. The high-precision etching system for the surface of a ring-shaped medical device based on laser processing according to claim 3, characterized in that, The control device is connected to the galvanometer, an industrial camera, a focusing and translation stage, a lifting platform, and a laser etching linear module.
8. The high-precision etching system for the surface of a ring-shaped medical device based on laser processing according to claim 5, characterized in that, The control device is connected to the detection linear module, the electric push rod, the second industrial camera, and the second focusing and translation stage.