WO2018072659A1 - Procédé de fabrication d'un composant rainuré régulateur de vitesse - Google Patents

Procédé de fabrication d'un composant rainuré régulateur de vitesse Download PDF

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Publication number
WO2018072659A1
WO2018072659A1 PCT/CN2017/106235 CN2017106235W WO2018072659A1 WO 2018072659 A1 WO2018072659 A1 WO 2018072659A1 CN 2017106235 W CN2017106235 W CN 2017106235W WO 2018072659 A1 WO2018072659 A1 WO 2018072659A1
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WO
WIPO (PCT)
Prior art keywords
laser
manufacturing
groove
speed
laser beam
Prior art date
Application number
PCT/CN2017/106235
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English (en)
Chinese (zh)
Inventor
胡绍勤
汤丽芬
Original Assignee
胡绍勤
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Filing date
Publication date
Application filed by 胡绍勤 filed Critical 胡绍勤
Publication of WO2018072659A1 publication Critical patent/WO2018072659A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2207/00—Methods of manufacture, assembly or production

Definitions

  • the present invention relates to the field of medical device accessory manufacturing, and more particularly to a method of manufacturing a speed control groove component.
  • the speed regulating component in the infusion regulator is provided with one or more speed regulating grooves, which are equipped with a speed regulating groove whose cross-sectional area is continuously changed, or a speed regulating groove with a segmental different cross-sectional area.
  • the speed regulation accuracy often depends on the cross-sectional area accuracy of the speed control groove, especially in the fine flow rate regulation, the cross-sectional area of the speed control groove is Mm 2 is used as the unit of measurement.
  • the width of the groove body of the groove generally forming the speed control groove is larger than the width of the groove bottom of the same vertical section, and is generally inverted trapezoidal or semi-circular.
  • the above-mentioned speed regulating components are basically produced by injection molding after manufacturing the mold, because of the precision of the mold in the production process, the degree of mold wear, the physical and chemical properties of different batches of the same material, and the production process (such as injection temperature, mold temperature, Injection pressure, injection speed, etc., etc. all affect the accuracy of the speed control groove. Errors of 5 to 20 ⁇ m often occur, and even higher. In the fine flow control groove section, the error ratio is high. In the current infusion governor, in the case of fine flow speed regulation, the speed regulation error generally reaches more than 10%, most of the finished product errors reach 15 to 30%, and some of the finished product errors even exceed 30%, even in the same batch.
  • the present invention provides a manufacturing method for stably manufacturing a high-precision speed-adjusting groove member with high quality.
  • a laser control system controls the laser focus position and the focus intensity of the at least one laser according to the determined position data; or controlling the laser focus position and the focus intensity of the at least one laser by the laser control system, a processing station for moving a pre-formed article along a predetermined orbit; or controlling a laser focus position and focus intensity of at least one laser by a laser control system, in conjunction with a laser motion device that moves the laser along a predetermined orbit; or controlling at least by a laser control system The laser focus position and focus intensity of a laser, in conjunction with a processing station that moves the pre-formed article along a predetermined orbit and a laser motion device that moves the laser along a predetermined orbit;
  • step d scanning and detecting the flatness of the surface of the pre-formed shaped product in the pre-formed shaped product by the flatness detector of the detectable flatness, such as the flatness conforming If the value is fixed, go directly to step d. If the flatness does not meet the set value, go to step e;
  • the device adjusts the orbital motion parameter of the laser, so that the surface of the pre-formed shaped product in which the surface of the processing speed adjustment groove is expected to be irradiated by the laser beam beyond the certain height is removed, and the speed control groove can be processed through the step f.
  • the laser control system is provided with a controllable focusing optical element and a beam forming device.
  • the laser control system is provided with a controllable deflection device.
  • the laser can emit a laser beam.
  • a gas injector for injecting gas into the body is provided before the step b.
  • a gas filtering device is provided in the gas injector for filtering the gas to be ejected.
  • a gas aspirator for sucking the gas injected by the gas injector is provided before the step b.
  • the processing station is provided with a gas suction device for attracting a gas of the laser ablation portion.
  • the body is selected from the group consisting of pre-formed objects.
  • the body is selected from the object of a fixed shape after pre-forming.
  • the body is selected from the group consisting of a polymer material, a metal material, an alloy material, and a biomedical inorganic non-metal material.
  • the polymer material is selected from the group consisting of acrylonitrile-butadiene-styrene copolymer, polypropylene, polyethylene terephthalate, polyoxymethylene resin, and polyvinyl chloride.
  • the metal material is selected from titanium.
  • the alloy material is selected from the group consisting of stainless steel and titanium alloy.
  • the biomedical inorganic non-metal material is selected from the group consisting of bio-inert ceramics, glass, and carbon.
  • the body is made of a biocompatible material.
  • the speed control groove is made by a non-contact processing method.
  • the non-contact processing method is selected from the group consisting of a laser cutting processing method, a laser drilling processing method, and a laser ablation processing method.
  • the laser emits a first laser beam; or the laser emits a first laser beam and a second laser beam, the first laser beam and the second laser beam have the same focus point, the first The optical axis of the laser beam is at an angle to the vertical line and the optical axis of the second laser beam is at an angle to the vertical line, the optical axes of the first laser beam and the second laser beam are in the same plane; or the laser emits three or More than three laser beams, each of the laser beam focusing points are the same, an optical axis of each of the laser beams forms an angle with a vertical line, and optical axes of the respective laser beams are in the same plane; or the laser control The system controls the first laser to emit a first laser beam, and the laser control system controls the second laser to emit a second laser The beam, the first laser beam and the second laser beam have the same focus point.
  • the laser emits two or more laser beams, each of which has the same focusing point, and the focusing point is on a surface where the body is expected to process the speed adjusting groove.
  • the body in the manufacturing process, the body is fixed and the laser moves along a preset trajectory; or the body moves along a preset trajectory, and the laser is fixed; or the body and the laser Both move along the preset trajectory.
  • a speed control groove component comprising the speed control groove component manufactured by the manufacturing method of any of the above-mentioned speed control groove components.
  • the body is provided with a speed regulating groove whose opening width at the top of the groove body is smaller than the maximum width of the groove body of the same cutting surface.
  • the body is provided with a speed regulating groove whose opening width at the top of the groove body is smaller than the maximum width of the groove body of the same vertical cutting surface.
  • An infusion regulator comprising any of the above-described governing groove members.
  • An infusion device comprising any of the above-described governing groove members.
  • the infusion device is selected from the group consisting of an infusion line, an infusion set, a syringe, an indwelling needle, an infusion needle, an infusion pump, and a syringe pump.
  • the main body adopts the fixed shape object after processing, and then applies the laser processing technology to the processing of the speed control groove, and separates the pre-component and the high-precision machining process, and the non-contact finishing process can reduce the process in the injection molding process.
  • the effect is to ensure the precision of cutting, perforating and ablation on most materials and to maintain stable quality. Avoiding the material after injection molding Accuracy error caused by cooling shrinkage.
  • step b by the arrangement of the gas injector, the gas filtering device and the gas suction device, the foreign matter adhering to the body can be removed by the pressurized cleaning gas, and the gas with foreign matter is attracted to achieve the purpose of cleaning the body.
  • Step d, step e, and step f are provided with a gas aspirator for attracting a gas in the laser ablation portion, which can quickly remove the aerosol formed by laser ablation, reduce interference factors in the manufacturing process, and is beneficial to improve the speed control groove. Production accuracy.
  • the focus point of the laser beam is on the surface of the body intended to process the speed control groove, so that the width of the groove body of the two or more laser beams forming the speed control groove on the body is smaller than the maximum width of the groove body of the speed control groove. It is beneficial to reduce the deformation of the gasket and press it into the speed control groove to affect the speed regulation accuracy.
  • the speed control groove component has high precision, high repeatability and stable quality.
  • the finished product can be an infusion regulator, which can effectively ensure the accuracy of infusion and the safety of infusion.
  • Figure 1 is a schematic view of a first embodiment of the present invention
  • Figure 2 is a schematic view of a second embodiment of the present invention.
  • Figure 3 is a schematic view of a third embodiment of the present invention.
  • FIG. 4 is a schematic view showing the overall structure of a speed regulating groove member according to an embodiment of the present invention.
  • the present invention is a method for manufacturing a speed control groove member, which is obtained by ablation processing on a pre-formed body 1 by a non-contact processing method.
  • the speed control groove component includes the following processing steps:
  • the laser control system 30 controls the laser focus position and focus intensity of the at least one laser 3 based on the determined position data; or controlling the laser focus position of the at least one laser 3 by the laser control system 30 and Focus intensity, in conjunction with a processing station 4 that moves the pre-formed article along a predetermined orbit; or by laser control system 30 controlling the laser focus position and focus intensity of at least one laser 3, in conjunction with laser motion that causes laser 3 to move along a predetermined orbit Apparatus 31; or controlling the laser focus position and focus intensity of at least one of the lasers 3 by the laser control system 30, in conjunction with a processing station 4 that moves the pre-formed article along a predetermined orbit, and a laser motion device that moves the laser 3 along a predetermined orbit 31;
  • the flatness of the surface of the pre-formed shaped product in which the speed-regulating groove is expected to be processed is detected by scanning the flatness detector 13 of the detectable flatness, such as the flatness. Set the value, then go directly to step d. If the flatness does not meet the set value, go to step e;
  • the laser parameters are adjusted by the laser control system 30 and/or processed
  • the stage 4 adjusts the orbital motion parameters of the pre-formed product and/or adjusts the orbital motion parameters of the laser 3 by the laser moving device 31, so that the surface of the pre-formed shaped product processed by the e-step is expected to be processed by the laser beam A certain thickness of material of the irradiated portion is removed or penetrated to machine the speed regulating groove member.
  • the flatness detector for detecting the flatness can also detect the curvature, the tilt angle, and the like according to the requirements of the body 1 to manufacture the surface of the speed control groove as a curved surface, a slope, and the like. Such detection of the surface on which the body 1 is expected to process the speed control groove, or the thickness of the body 1 in which the body 1 is expected to process the speed control groove is within the scope of the present invention.
  • the flat surface in the flat surface required for processing the speed regulating groove member by the step f, which is processed in the step e also includes a curved surface and a sloped surface. This embodiment is also included in the protection scope of the present invention.
  • the ablation pattern comprises cutting, perforating, ablation.
  • the laser control system 30 is provided with controllable The optical element 32 and the beam forming device 33 are focused.
  • the laser control system 30 is provided with a controllable deflection device 34.
  • controllable focusing optics 32 the beam forming means 33 and the controllable deflection means 34 facilitates the laser control system 30 to accurately control the focus, intensity and other parameters of the laser.
  • a gas injector 14 for injecting gas into the body 1 is provided before the step b.
  • the gas injector 14 is provided with a filtering device 140 that filters the gas to be ejected.
  • the gas injector 14, the filter device 140 that can filter the gas to be ejected, and the gas aspirator 15 are disposed to remove the foreign matter adhering to the body 1 with the pressurized cleaning gas, while attracting the gas of the foreign matter to the cleaning body 1 purpose.
  • the suction opening of the gas aspirator is being provided for the injection port of the gas injector.
  • the processing table 4 is provided with a gas suction device 15 for attracting a gas in the laser ablation portion.
  • the gas aspirator 15 for attracting the gas of the laser ablation site is turned on in the step d.
  • the gas aspirator 15 for attracting the gas of the laser ablation site is turned on.
  • the gas aspirator 15 for attracting the gas of the laser ablation site is turned on.
  • the gas aspirator 15 is arranged to rapidly remove the aerosol formed by laser ablation. Reducing the interference factors in the production process is beneficial to improve the precision of the speed control groove.
  • the body 1 is selected from pre-formed objects.
  • the body 1 is selected from objects of a fixed shape after pre-forming.
  • the body 1 may be an object such as a flow rate adjusting plate, a fixed base, or the like.
  • the object is a flat surface on one side, or an object having a circular shape.
  • the body 1 may also adopt other shapes such as a slope, a curved surface, or the like, or other shapes such as a cylinder, a trapezoid, a sphere, or the like.
  • the body 1 may also be pre-attached with other groove arrangements or other accessory structures.
  • a preferred example body 1 of such a shaped object after forming is formed by injection molding, injection molding, cutting, casting, grinding, forging, and sintering.
  • the body 1 is made of a polymer material, a metal material, an alloy material, and a biomedical inorganic non-metal material.
  • the polymer material is selected from the group consisting of acrylonitrile-butadiene-styrene copolymer, polypropylene, polyethylene terephthalate, polyoxymethylene resin, and polyvinyl chloride.
  • the metallic material is selected from the group consisting of titanium.
  • the alloy material is selected from the group consisting of stainless steel and titanium alloy.
  • the biomedical inorganic non-metal material is selected from the group consisting of bio-inert ceramics, glass, and carbon.
  • the bio-inert ceramic uses an oxide ceramic.
  • the body 1 is fabricated from a biocompatible material.
  • biocompatible materials include, but are not limited to, acrylonitrile-butadiene-styrene copolymer, polypropylene, polyethylene terephthalate, polyoxymethylene resin, polychlorinated Ethylene, titanium, stainless steel, titanium alloy, bio-inert ceramics, glass, carbon.
  • the speed control groove is made by a non-contact processing method.
  • the non-contact processing method is selected from the group consisting of a laser cutting processing method, a laser drilling processing method, and a laser ablation processing method.
  • the laser 3 emits a first laser beam A1; or the laser 3 emits a first laser beam A1 and a second laser beam A2, focusing of the first laser beam A1 and the second laser beam A2 Similarly, the optical axis of the first laser beam A1 is at an angle to the vertical line and the optical axis of the second laser beam A2 is at an angle to the vertical line, and the optical axes of the first laser beam A1 and the second laser beam A2 are at an angle The same plane; or the laser 3 emits three or more laser beams, each of the laser beams has the same focusing point, and the optical axis of each of the laser beams forms an angle with the vertical line, and each of the laser beams The optical axes are in the same plane; or the laser control system controls the first laser 300 to emit a first laser beam A1, the laser control system controls the second laser 301 to emit a second laser beam A2, the first laser beam A1 and the second The laser beam A2 has the same focus point
  • the laser emits a first laser beam and a second laser beam.
  • the physical characteristics (such as wavelength, intensity, etc.) of the first laser beam and the second laser beam are the same, the focus points are the same, and the optical axis of each laser beam is one with the vertical line. Angled, in the same plane. Preferably, the angles are the same. In this way, it is easier to stably maintain the cross-section of the speed-regulating groove in an axisymmetric structure, and it is easier to calculate the cross-sectional area of the groove.
  • the single-pass laser beam is ablated multiple times, and two or more laser beams are manufactured with different angles, different wavelengths, different intensities, different focusing points, and the like.
  • the laser 3 emits two or more laser beams, each of which has the same focus point, and the focus point is on the surface of the body 1 where the timing groove is expected to be processed.
  • the focus point is on the surface of the body 1 expected to process the speed control groove, so that the width of the groove body of the two or more laser beams forming the speed control groove on the body 1 is smaller than the maximum width of the groove body of the speed control groove. It is beneficial to reduce the deformation of the gasket and press it into the speed control groove to affect the speed regulation accuracy.
  • the body 1 is fixed, the laser 3 moves along a preset trajectory; or the body 1 moves along a preset trajectory, and the laser 3 is fixed; or Both the body 1 and the laser 3 move along a predetermined trajectory.
  • one of the body 1 and the laser 3 is fixed and the other moves along a preset trajectory. This reduces the alignment error generated when both are moving at the same time, and improves the accuracy.
  • a speed control groove member includes a speed control groove member manufactured by the method for manufacturing any of the above-described speed control groove members.
  • the body 1 is provided with a speed control groove 2 having an open width L1 of the top opening 21 of the groove body 20 smaller than a maximum width L of the groove body 20 of the same cutting surface.
  • the body 1 is provided with a speed adjusting groove 2 whose opening width L1 of the top opening 21 of the groove body 20 is smaller than the maximum width L of the groove body 20 of the same vertical cutting surface.
  • the body is provided with a speed control groove having an open width at the top of the groove body that is larger than a width of the groove body of the same cut surface, or an open top of the groove body on the body.
  • a speed control groove having an open width at the top of the groove body that is larger than a width of the groove body of the same cut surface, or an open top of the groove body on the body.
  • An embodiment in which the width of the mouth is equal to the width of the cross-section of the trough of the same section, or the embodiment in which the body is provided with a variable-width groove having an open width of the top of the trough is also included in the present invention.
  • the speed-adjusting groove 2 of the opening width 21 of the top opening 21 of the trough 20 is smaller than the maximum width L of the trough 20 of the same vertical section, which is beneficial for reducing the deformation of the gasket and the speed of the groove. Better choice.
  • An infusion regulator comprising any of the above-described governing groove members.
  • An infusion device comprising any of the above-described governing groove members.
  • the infusion device is selected from the group consisting of an infusion line, an infusion set, a syringe, an indwelling needle, an infusion needle, an infusion pump, and a syringe pump.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Laser Beam Processing (AREA)

Abstract

Procédé de fabrication d'un composant rainuré régulateur de vitesse selon lequel un corps (1), après avoir été usiné selon des procédés notamment de moulage par injection ou simple moulage, subit un traitement laser afin d'obtenir des rainures régulatrices de vitesse. Le composant, au début de son usinage, est soumis à un traitement de précision avant d'être détaché en vue de l'étape de finition sans contact, ce qui permet de réduire les effets du moulage par injection. Sur un matériau, on procède à la découpe, perforation et ablation avec grande précision afin de garantir la qualité. Le procédé selon l'invention est spécialement indiqué pour la fabrication d'instruments médicaux et est utilisé dans le domaine des instruments médicaux.
PCT/CN2017/106235 2016-10-20 2017-10-16 Procédé de fabrication d'un composant rainuré régulateur de vitesse WO2018072659A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610914474.6 2016-10-20
CN201610914473.1 2016-10-20
CN201610914474 2016-10-20
CN201610914473 2016-10-20

Publications (1)

Publication Number Publication Date
WO2018072659A1 true WO2018072659A1 (fr) 2018-04-26

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PCT/CN2017/106235 WO2018072659A1 (fr) 2016-10-20 2017-10-16 Procédé de fabrication d'un composant rainuré régulateur de vitesse
PCT/CN2017/106234 WO2018072658A1 (fr) 2016-10-20 2017-10-16 Composant rainuré régulateur de vitesse

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CN (1) CN107456629A (fr)
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Citations (8)

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US20020177809A1 (en) * 1996-12-18 2002-11-28 Kriesel Marshall S. Variable rate infusion apparatus with indicator and adjustable rate control
CN101136361A (zh) * 2000-09-13 2008-03-05 浜松光子学株式会社 激光加工方法
CN101678194A (zh) * 2007-05-17 2010-03-24 森特拉克斯有限公司 液体流速控制装置
CN103285451A (zh) * 2013-05-27 2013-09-11 苏州扬清芯片科技有限公司 一种输液芯片及其制备方法
CN104174997A (zh) * 2013-05-28 2014-12-03 日本车辆制造株式会社 激光加工机
CN204864366U (zh) * 2015-05-25 2015-12-16 美敦力公司 流量调节装置和流体输注设备
CN105598584A (zh) * 2016-02-01 2016-05-25 大族激光科技产业集团股份有限公司 采用激光加工孔的方法
CN105689888A (zh) * 2014-12-10 2016-06-22 株式会社迪思科 激光加工装置以及晶片的加工方法

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US4822344A (en) * 1986-12-05 1989-04-18 Sta-Set Corp. Apparatus for controlling fluid flow rate
CN2561421Y (zh) * 2002-08-26 2003-07-23 上海长海医院 一种定量控速的一次性输液调节器
CN201094782Y (zh) * 2007-09-17 2008-08-06 佛山特种医用导管有限责任公司 一种输液流量调节器及其控液阀
CN203749939U (zh) * 2014-02-26 2014-08-06 上海康德莱企业发展集团医疗器械有限公司 一种精密流量调节装置
CN104383623A (zh) * 2014-12-06 2015-03-04 胡绍勤 流速设定式调节器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020177809A1 (en) * 1996-12-18 2002-11-28 Kriesel Marshall S. Variable rate infusion apparatus with indicator and adjustable rate control
CN101136361A (zh) * 2000-09-13 2008-03-05 浜松光子学株式会社 激光加工方法
CN101678194A (zh) * 2007-05-17 2010-03-24 森特拉克斯有限公司 液体流速控制装置
CN103285451A (zh) * 2013-05-27 2013-09-11 苏州扬清芯片科技有限公司 一种输液芯片及其制备方法
CN104174997A (zh) * 2013-05-28 2014-12-03 日本车辆制造株式会社 激光加工机
CN105689888A (zh) * 2014-12-10 2016-06-22 株式会社迪思科 激光加工装置以及晶片的加工方法
CN204864366U (zh) * 2015-05-25 2015-12-16 美敦力公司 流量调节装置和流体输注设备
CN105598584A (zh) * 2016-02-01 2016-05-25 大族激光科技产业集团股份有限公司 采用激光加工孔的方法

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CN107456629A (zh) 2017-12-12

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