CN108472442A - 粘弹性弹簧注射器 - Google Patents

粘弹性弹簧注射器 Download PDF

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CN108472442A
CN108472442A CN201780006756.9A CN201780006756A CN108472442A CN 108472442 A CN108472442 A CN 108472442A CN 201780006756 A CN201780006756 A CN 201780006756A CN 108472442 A CN108472442 A CN 108472442A
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syringe
spring
plunger
viscoelastic material
equipment according
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CN108472442B (zh
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艾浓·威驰赛尔巴母
也驰艾尔·来斯内
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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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14526—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons the piston being actuated by fluid pressure
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • 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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1454—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons spring-actuated, e.g. by a clockwork
    • 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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M2005/14506—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons mechanically driven, e.g. spring or clockwork
    • 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
    • A61M2205/02—General characteristics of the apparatus characterised by a particular materials
    • A61M2205/0216—Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
    • 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
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/088—Supports for equipment on the body

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

Abstract

一种注射器包括柱塞和嵌入粘弹性材料中的弹簧。弹簧和粘弹性材料的扩张在柱塞上施加力，以使柱塞在注射器中向远侧移动。

Description

粘弹性弹簧注射器
技术领域
本发明一般而言涉及注射器，且特别地涉及如下注射器，通过嵌入粘弹性材料(诸如聚合物-基质复合物)中的弹簧的力使该注射器的柱塞移动。
背景技术
用于分配医用材料的注射器(诸如，与皮下注射针等一起使用的注射器)通常具有在圆筒形壳体中滑动的柱塞。可以用手推动该柱塞以迫使材料通过针尖排出。
在其他应用中，注射器可以形成泵送系统的一部分。传统的注射泵通常与注射器或者瓶和柱塞系统一起使用，用于将液体投给患者。在这种传统系统中，液体的注射器或瓶在注射泵上的固定位置中竖直取向。注射器或瓶的底部限定了排放端口，该排放端口被连接到柔性中空管，该柔性中空管延伸到患者。该设备的柱塞或活塞与注射泵的移动推动器板或驱动构件接合，并被向下驱动到注射器本体或瓶中，以迫使液体药剂从注射器本体或瓶通过管进入患者。
在另一实例中，美国专利8088105描述了一种具有注射器的注射泵，该注射器包括在具有排放端口的本体中滑动的柱塞。驱动机构被联接到注射器，该驱动机构包括缸，安装在轴上的活塞在该缸中滑动。偏置装置在活塞上施加推压力以在缸中向远侧驱动活塞。安全扣最初防止偏置装置移动活塞。该安全扣是可拆卸的，以允许偏置装置移动活塞。该系统使用被连接到缓冲器的机械弹簧机构，以便产生注射器的线性移位。
发明内容
本发明旨在提供一种注射器，通过嵌入粘弹性材料(诸如，聚合物-基质复合物)中的弹簧的力使该注射器的柱塞移动，如下文更详细描述。在一种应用中，注射器可以用于使药物或抗生素缓慢释放到伤口和烧伤。本发明的系统提供了若干优点：嵌入粘弹性材料中的弹簧显著节省了空间、成本且易于制造。
根据本发明的一个实施例，提供了一种注射器，该注射器包括柱塞和嵌入粘弹性材料中的弹簧，其中弹簧和粘弹性材料的扩张在柱塞上施加力，以使柱塞在注射器中向远侧移动。
根据本发明的一个实施例，粘弹性材料包括聚合物-基质复合物(PMC)，所述聚合物-基质复合物包括通过有机聚合物基质结合在一起的弹性纤维，所述弹簧由这些纤维制成。弹簧和粘弹性材料的力可以引起柱塞的均匀且线性的移位。
根据本发明的一个实施例，注射器被连接到导管，该导管将液体材料转移到治疗区域。
附图说明
从以下结合附图的详细描述将更充分地理解和认识本发明，在这些附图中：
图1是在根据本发明的一个实施例构造的且可操作的用于医疗的注射泵系统中使用的注射器的简化图示说明；
图2是根据本发明的一个实施例的嵌入粘弹性材料(诸如聚合物-基质复合物)中的注射器的弹簧的简化图示说明；
图3是嵌入粘弹性材料中的弹簧随时间逐渐扩张的简化图示说明；并且
图4是即将与注射器组装的嵌入粘弹性材料中的弹簧的简化图示说明。
具体实施方式
现在参考图1，其示出了根据本发明的一个实施例构造的且可操作的在注射泵系统12中使用的注射器10。如以下将进一步描述，该注射器10具有柱塞14，该柱塞14由嵌入粘弹性材料18(图2)中的弹簧16(图2)的力推压。
该注射泵系统12仅是用于注射器的一种应用，并且本发明不限于该应用。医用液体可以经由导管22被输送到治疗区域。可以用绑带20将注射器10绑到患者的身体(腿或臂)。注射器10至少部分地填充有医用流体，该医用流体经由导管22被输送到治疗区域。可以使用可选的可充气锚固气囊24将导管22锚固在器官(诸如，尿道、肠、子宫或其他器官)的管腔内。
注射器10的致动机构(即，推压柱塞14的机构)是被设置在粘弹性材料18中的弹簧16，该粘弹性材料18可以是预压缩的粘弹性材料。弹簧16和粘弹性材料18的组合可以抵抗医用流体流动的阻力和注射器的内部摩擦(静态的和动态的)而提供均匀且线性的移位，并且可以在注射器中提供最终快速喷出被捕获的气泡，以便对医用液体的导管进行清理。
粘弹性材料18可以是轻质聚合物-基质复合物(PMC)，其包括通过有机聚合物基质结合在一起的各种短或连续弹性纤维。该PMC中的纤维增强物可以响应于弹簧16的机械力而变形。基质将弹性纤维结合在一起并在它们之间传递载荷。PMC可以沿着弹性部件的取向呈现各向异性变形。这些纤维用作嵌入粘弹性材料18的基质中的弹簧16。
基于粘弹性聚合物的致动系统可以代替现有技术的弹簧加载的基于流体的系统。如图2中所示，聚合物-基质复合物包括嵌入粘弹性聚合物18内的预压缩弹簧16。在释放初始压缩限制(诸如通过释放安全扣)时，预压缩弹簧16开始立即变形。随着弹簧16开始延伸，粘弹性聚合物基质18将弹簧16捕获并限制弹簧16的移动，从而减慢延伸的速率。限制粘弹性聚合物18在它变形时的耗散效应减轻了弹簧16的移位。在图3中示出了粘弹性聚合物18的逐渐扩张。

Claims (7)

1.设备，包括：
注射器，包括柱塞和嵌入粘弹性材料中的弹簧，其中所述弹簧和所述粘弹性材料的扩张在所述柱塞上施加力，以使所述柱塞在所述注射器中向远侧移动。
2.根据权利要求1所述的设备，其中所述粘弹性材料包括聚合物-基质复合物(PMC)，所述聚合物-基质复合物包括通过有机聚合物基质结合在一起的弹性纤维，所述弹簧由所述纤维制成。
3.根据权利要求1所述的设备，其中所述弹簧和所述粘弹性材料的力引起所述柱塞的均匀且线性的移位。
4.根据权利要求1所述的设备，其中所述注射器被连接到导管。
5.根据权利要求1所述的设备，其中所述注射器至少部分地填充有医用流体。
6.根据权利要求1所述的设备，进一步包括被附接到所述注射器的绑带。
7.根据权利要求4所述的设备，进一步包括可充气的锚固气囊，所述锚固气囊可操作以锚固所述导管。
CN201780006756.9A 2016-01-14 2017-01-11 粘弹性弹簧注射器 Active CN108472442B (zh)

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Application Number Priority Date Filing Date Title
US201662278521P 2016-01-14 2016-01-14
US62/278,521 2016-01-14
PCT/IB2017/050134 WO2017122134A1 (en) 2016-01-14 2017-01-11 Viscoelastic spring syringe

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CN108472442B CN108472442B (zh) 2022-02-22

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US11701469B2 (en) 2019-04-25 2023-07-18 Matthew John Petrides Devices and methods for conduit distention

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US4278726A (en) * 1978-09-28 1981-07-14 N. V. Bekaert S.A. Energy absorbing elements comprising rigid non-elastomeric layer and visco-elastic layer with twisted fiber bundles embedded therein
US4772263A (en) * 1986-02-03 1988-09-20 Regents Of The University Of Minnesota Spring driven infusion pump
US5318539A (en) * 1986-10-17 1994-06-07 Alexander G. B. O'Neil Liquid feeding apparatus utilizing capillary tubing, and syringe driver
US5178609A (en) * 1990-06-19 1993-01-12 Kato Hatsujo Kaisha, Ltd. Medical liquid injector for continuous transfusion
CN1176222A (zh) * 1996-09-12 1998-03-18 阿勒根 用于粘弹性材料的注射器现场灌注装置及灌注方法
US20080103580A1 (en) * 2006-10-31 2008-05-01 Medtronic, Inc. Implantable medical elongated member with dual purpose conduit
JP2008291867A (ja) * 2007-05-22 2008-12-04 Yuei Caster Co Ltd 複合ダンパー
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US20110257596A1 (en) * 2010-04-15 2011-10-20 Teneo Innovations Inc. Device And Electronic Controller For Syringe Piston Control

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US20190022307A1 (en) 2019-01-24
CN108472442B (zh) 2022-02-22
US11013856B2 (en) 2021-05-25
EP3386562A1 (en) 2018-10-17
EP3386562B1 (en) 2019-07-24
WO2017122134A1 (en) 2017-07-20

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