WO2018072658A1 - Composant rainuré régulateur de vitesse - Google Patents

Composant rainuré régulateur de vitesse Download PDF

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Publication number
WO2018072658A1
WO2018072658A1 PCT/CN2017/106234 CN2017106234W WO2018072658A1 WO 2018072658 A1 WO2018072658 A1 WO 2018072658A1 CN 2017106234 W CN2017106234 W CN 2017106234W WO 2018072658 A1 WO2018072658 A1 WO 2018072658A1
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WO
WIPO (PCT)
Prior art keywords
groove
speed control
speed
control groove
infusion
Prior art date
Application number
PCT/CN2017/106234
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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 WO2018072658A1 publication Critical patent/WO2018072658A1/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 accessories and medical devices, and more particularly to a component that is a governing groove.
  • 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.
  • the error of 5 ⁇ 20 ⁇ m often occurs, even higher.
  • the error ratio is very high.
  • the speed regulation error 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 gasket will deform after being pressed, and protrude into the open speed control groove to change the speed control groove. Actual cross-sectional area. Opening at the same angle or at the same center of the circle will make the gasket easier to protrude into the groove. Especially in the speed-regulating groove section with a large flow velocity, the open groove has a larger opening and a greater influence.
  • the present invention provides a high-precision, stable, and safe speed-adjusting groove member.
  • a speed regulating groove component comprises a body, wherein the body is provided with a speed regulating groove having an open width of the top opening of the groove body and a width of the groove cross section of the same cutting surface, or the body is provided with The open width of the open top of the trough body is smaller than the speed regulating groove of the maximum width of the trough body of the same cut surface, or the main body is provided with a speed control groove with an open width of the top of the trough body.
  • the body is provided with a speed control groove having an open width at the top of the groove body and a width of a cross section of the same vertical cut surface; or
  • the body is provided with a speed regulating groove whose opening width at the top of the tank body is smaller than the maximum width of the groove body 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 and a width of a cross section of the same vertical cut 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.
  • the body is provided with a speed-regulating groove whose cross-sectional area is continuously changed; or the body is provided with a speed-regulating groove with a radial distribution and a different cross-sectional area; or The body is provided with a speed control groove with a continuously changing cross-sectional area and a speed control groove with a radial distribution and different cross-sectional areas.
  • the body has radial regulating grooves with different cross-sectional areas, and the guiding grooves are provided with guiding holes at both ends.
  • the body is provided with a speed control groove, the speed control groove is made of a hole, and a flow guiding hole is arranged at both ends of the opening of the hole.
  • the speed regulating groove is provided with a groove body, and the speed regulating groove is further provided with a different plane and/or different centers and/or different angles and/or different from the groove body.
  • the misaligned section of the facet is provided with a groove body, and the speed regulating groove is further provided with a different plane and/or different centers and/or different angles and/or different from the groove body.
  • the body is a hollow cylindrical shape
  • the speed control groove is disposed on the inner side wall of the body, the speed control groove is provided with a groove body, and the speed control groove is further provided with a displacement portion of a plane different from the groove body; or the upper surface of the body is a plane, the speed control groove is disposed on the upper surface of the body, the speed control groove is provided with a groove body, and the speed control groove is further provided a misaligned segment having a different center from the trough; or the upper surface of the body is flat
  • the speed control groove is disposed on the upper surface of the body, the speed control groove is provided with a groove body, and the speed control groove is further provided with a misalignment segment at a different angle from the groove body; or the upper surface of the body
  • the speed regulating groove is disposed on the upper surface of the body, the speed regulating groove is provided with a groove body, and the speed regulating groove is further provided with
  • the body is a hollow cylindrical shape
  • the speed control groove is disposed on the inner side wall of the body, the speed control groove is provided with a groove body, and the speed control groove is further provided with A misaligned segment that is different from the plane of the trough.
  • the upper surface of the body is a plane
  • the speed control groove is disposed on the upper surface of the body
  • the speed control groove is provided with a groove body
  • the speed control groove is further provided with A misaligned segment of a different center from the trough.
  • the upper surface of the body is a plane
  • the speed control groove is disposed on the upper surface of the body
  • the speed control groove is provided with a groove body
  • the speed control groove is further provided with A misaligned segment at a different angle from the trough.
  • the upper surface of the body is a curved surface
  • the speed regulating groove is disposed on the upper surface of the body
  • the speed adjusting groove is provided with a groove body
  • the speed regulating groove is further provided with A misaligned section of a different section from the trough.
  • the speed control groove is selected from a groove and a hole.
  • the speed control groove is made of a hole.
  • the speed control groove is composed of a groove disposed on the body and a hole communicating with the groove.
  • the opening of the speed control groove and the The openings of the holes in which the grooves communicate are located on the same side of the body.
  • the opening of the trough body of the speed regulating groove and the opening of the hole communicating with the groove are both on the same side of the body.
  • the opening of the speed regulating groove is on the same side of the body.
  • the top opening of the trough body of the speed regulating groove is on the same side of the body.
  • the speed control groove is made by a non-contact processing method, or the speed control groove is made by an additive manufacturing method.
  • the speed control groove is fabricated 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 body of the speed control groove formed by the non-contact processing method is selected from a pre-formed object.
  • the body of the speed control groove formed by the non-contact processing method is selected from the objects of the fixed shape after pre-forming.
  • the speed control groove is made by an additive manufacturing method.
  • 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, 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 additive manufacturing method is selected from the group consisting of a fusion molding, a selective laser sintering, and a photocuring molding.
  • An infusion regulator characterized in that the infusion regulator comprises any of the above-described governing groove members.
  • An infusion device characterized in that the infusion device comprises 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 design of the opening width of the trough body is smaller than the maximum width of the cross section of the trough body, which can reduce the proportion of the sealing pad deformed into the speed regulating groove under pressure, and reduce the deformation of the sealing pad and protrude into the speed regulating groove to the actual flow of the speed regulating groove. Through the influence of the cross-sectional area.
  • the setting of the wrong segment can form a support for the gasket, further reducing the pressure of the gasket
  • the ratio of the deformation under the force to the speed-adjusting groove further reduces the influence of the deformation of the gasket protruding into the speed-adjusting groove on the cross-sectional area of the actual flow of the speed-regulating groove.
  • the design of the opening width of the trough is smaller than the maximum width of the cross section of the trough, and the setting of the misaligned section is a better choice in the technique of adopting the governing groove with continuously varying cross-sectional area.
  • the speed-adjusting groove with the open width of the top of the tank body is zero.
  • the radial distribution and the speed-regulating groove of different cross-sectional areas are set, that is, when the segmental flow rate is adjusted, the deformation deformation of the gasket can be avoided.
  • Speed control groove body is set, that is, when the segmental flow rate is adjusted, the deformation deformation of the gasket can be avoided.
  • the laser processing technology is applied to the cutting and punching of the groove, and the pre-component and high-precision machining processes are separated, and the non-contact finishing process can reduce the injection molding process.
  • the process influence can ensure the precision of cutting and punching and maintain the quality stability on most materials.
  • 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.
  • FIG. 1 is a schematic view showing the overall structure of a first embodiment of the present invention
  • Figure 2 is a schematic view showing the overall structure of a second embodiment of the present invention.
  • Figure 3 is a schematic view showing the overall structure of a third embodiment of the present invention.
  • Figure 4 is a side view showing the entire structure of a third embodiment of the present invention.
  • Figure 5 is a schematic view showing the overall structure of a fourth embodiment of the present invention.
  • Figure 6 is a schematic view showing the overall structure of a fifth embodiment of the present invention.
  • Figure 7 is a schematic view showing the overall structure of a sixth embodiment of the present invention.
  • Figure 8 is a schematic view showing the overall structure of a seventh embodiment of the present invention.
  • the present invention is a speed regulating groove member, comprising a body 1 having an open width L1 of a top opening 21 of the trough 20 and a trough 20 transverse to the same cut surface.
  • the speed control groove 2 having the same section width L2, or the speed width L1 of the body 1 provided with the top opening 21 of the groove body 20 is smaller than the width width L of the groove body 20 of the same section Or the body 1 is provided with a speed control groove 2 having an open width L1 of the top opening 21 of the trough.
  • the body 1 is provided with a speed-regulating groove 2 having an open width L1 of the top opening 21 of the trough 20 and a cross-sectional width L2 of the trough 20 of the same vertical section; or
  • the body 1 is provided with a speed-regulating 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 1 is provided with a speed-regulating groove 2 having an open width L1 of the top opening 21 of the groove body 20 and a cross-sectional width L2 of the groove body 20 of the same vertical section.
  • 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.
  • 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 1 is provided with a continuous change in cross-sectional area.
  • the speed regulating groove 2 is provided; or the body 1 is provided with a radial distribution groove 2 of different cross-sectional areas; or the body 1 is provided with a speed control groove 2 with a continuously varying cross-sectional area And a speed control groove 2 having a radial distribution and different cross-sectional areas.
  • the grooves When the timing grooves are spaced-apart grooves, the grooves have different apertures (cross-sectional areas). Preferably, the grooves are radially distributed and the different grooves have the same length. In particular, the minimum cross-sectional area of adjacent grooves increases sequentially in one direction, such as from left to right, so that the processing speed is more convenient, and the flow rate is adjusted to increase the flow rate sequentially or Reduced, convenient to adjust the flow rate in segments.
  • the cross section of the groove can be polygonal, semi-circular, tubular or other shape.
  • the groove is preferably a polygon.
  • the cross-sectional area is preferably continuously increased or decreased in one direction, so that the flow rate is continuously increased or decreased correspondingly.
  • the cross section of the groove can be rectangular, semi-circular or other semi-closed shape.
  • the body 1 is provided with a speed-regulating groove 2 having a radial distribution and a different cross-sectional area, and a flow guiding hole 22 is disposed at both ends of the speed adjusting groove 2.
  • the body 1 is provided with a speed control groove 2, and the speed control groove 2 is made of a hole, and a flow hole 22 is provided at both ends of the hole opening.
  • the speed regulating groove 2 is provided with a groove body 20, and the speed regulating groove 2 is further provided with a different plane and/or different center and/or different angles from the groove body 20. / or misaligned segments 23 of different sections.
  • the body 1 is a hollow cylindrical shape, and the speed control groove 2 is disposed on the inner side wall of the body 1.
  • the speed control groove 2 is provided with a groove body 20, and the speed control groove is provided. 2 is further provided with a misalignment section 23 different from the plane of the trough body 20; or the body
  • the upper surface is a flat surface, and the speed adjusting groove 2 is disposed on the upper surface of the body 1.
  • the speed adjusting groove 2 is provided with a groove body 20, and the speed regulating groove 2 is further provided with a different center from the groove body 20.
  • the upper surface of the body 1 is a plane
  • the speed control groove 2 is disposed on the upper surface of the body 1
  • the speed control groove 2 is provided with a groove body 20 on the speed control groove 2
  • the upper surface of the body 1 is a curved surface
  • the speed adjusting groove 2 is disposed on the upper surface of the body 1
  • the speed adjusting groove 2 is provided with the groove body 20 .
  • the groove body 10 is provided with a misalignment section 23 different from the groove body 20.
  • the body 1 is a hollow cylindrical shape, and the speed control groove 2 is disposed on the inner side wall of the body 1.
  • the speed control groove 2 is provided with a groove body 20, and the speed control groove is provided. 2 is also provided with a misalignment section 23 which is different from the plane of the trough body 20.
  • the upper surface of the body 1 is a plane
  • the speed control groove 2 is disposed on the upper surface of the body 1
  • the speed control groove 2 is provided with a groove body 20
  • the speed control groove 2 is also provided with a misalignment section 23 which is different from the center of the trough body 20.
  • the upper surface of the body 1 is a plane
  • the speed control groove 2 is disposed on the upper surface of the body 1
  • the speed control groove 2 is provided with a groove body 20
  • the speed control groove 2 is also provided with a misalignment section 23 at a different angle from the trough body 20.
  • the upper surface of the body 1 is a curved surface
  • the speed adjusting groove 2 is disposed on the upper surface of the body 1.
  • the speed adjusting groove 2 is provided with a groove body 20, and the groove body 10 is provided with A misaligned section 23 that is different from the groove 20 in the cut surface.
  • the speed control groove 2 is selected from a groove and a hole.
  • the speed control groove 2 is made of a hole.
  • the speed control groove 2 is disposed on the body 1
  • the groove is formed by a hole that communicates with the groove.
  • the opening of the speed regulating groove 2 and the opening of the hole communicating with the groove are both on the same side of the body 1.
  • the top opening 21 of the groove body 20 of the speed regulating groove 2 and the opening of the hole communicating with the groove are located on the same side of the body 1.
  • the opening of the speed control groove 2 is on the same side of the body 1.
  • the top opening 21 of the trough 20 of the speed control groove 2 is on the same side of the body 1.
  • 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, polyvinyl chloride, titanium, Stainless steel, titanium alloy, bio-inert ceramic, glass, carbon.
  • the speed control groove 2 is made by a non-contact processing method, or the speed control groove 2 is made by an additive manufacturing method.
  • the speed control groove 2 is fabricated 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 body 1 of the speed control groove 2 which is manufactured by the non-contact processing method is selected from a pre-formed object.
  • the speed control groove is made by non-contact machining, the body is selected from pre-formed objects.
  • the body 1 of the speed control groove 2 which is manufactured by the non-contact processing method is selected from the object of a fixed shape after pre-forming.
  • the body is selected from objects fixed in 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 additive manufacturing method is selected from the group consisting of a fusion molding, a selective laser sintering, and a photocuring molding.
  • the body adopts pre-formed objects; the speed control groove is manufactured by non-contact cutting processing of the body, non-contact laser processing mode, mature technology, high reliability, processing Short time, reduce process error, reduce or avoid the influence of other components on the cross-sectional area of the speed control groove, significantly improve the speed regulation accuracy of the infusion, and ensure the safety of the infusion.
  • the speed control groove 2 is made by an additive manufacturing method.
  • An infusion regulator characterized in that the infusion regulator comprises any of the above-described governing groove members.
  • An infusion device characterized in that the infusion device comprises 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

Rainure (2) régulatrice de vitesse comprenant un corps (1) sur lequel est pratiquée une rainure régulatrice de vitesse, la largeur (L1) découverte du corps (20) de rainure étant inférieure à la largeur (L) maximale de la surface transversale du corps (20) de rainure. Une garniture d'étanchéité est projetée dans la rainure (2) régulatrice de vitesse sous l'effet d'une pression de déformation selon un rapport de vitesse déterminé, réduisant ainsi la rainure (2) régulatrice de vitesse par déformation pour la projection de la garniture d'étanchéité, et permettant l'écoulement d'un liquide vers la rainure (2) régulatrice de vitesse sous l'influence de la coupe transversale ménagée sur la rainure (2). Un segment de dislocation (23) peut former un support pour garniture d'étanchéité et réduire davantage la garniture d'étanchéité (2) sous l'effet d'une pression de déformation selon un rapport de vitesse déterminé afin de permettre l'écoulement d'un liquide vers la rainure (2) régulatrice de vitesse sous l'influence de la coupe transversale ménagée sur la rainure (2).
PCT/CN2017/106234 2016-10-20 2017-10-16 Composant rainuré régulateur de vitesse WO2018072658A1 (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

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WO2018072658A1 true WO2018072658A1 (fr) 2018-04-26

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CN104174997A (zh) * 2013-05-28 2014-12-03 日本车辆制造株式会社 激光加工机
JP6494991B2 (ja) * 2014-12-10 2019-04-03 株式会社ディスコ ウエーハの加工方法
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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

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