CN104721911A - 无损伤防脱落穿刺针 - Google Patents

无损伤防脱落穿刺针 Download PDF

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CN104721911A
CN104721911A CN201510096874.6A CN201510096874A CN104721911A CN 104721911 A CN104721911 A CN 104721911A CN 201510096874 A CN201510096874 A CN 201510096874A CN 104721911 A CN104721911 A CN 104721911A
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needle
puncture
sword limit
rear side
guide part
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倪治法
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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
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • 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
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • 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
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3286—Needle tip design, e.g. for improved penetration

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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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

本发明公开了一种无损伤防脱落穿刺针，它是在针体的前端制有针头，针头的前端设有针尖，针尖的后侧设有穿刺部，穿刺部的后侧设有导向部，导向部的后侧设有泄液口，穿刺部两侧的开口处设有下刃边，导向部两侧的开口处设有上刃边，泄液口的后侧设有月牙形钝面，本发明结构简单，设计独特，由于上下刃边及刃面的流线形设计，其表面光滑，洁净如镜，使针体进入人体后能有效保证人体组织不被拉伤和脱落，有效的保障了人体的输液注射安全。

Description

无损伤防脱落穿刺针
技术领域
本发明涉及一种医疗用具，确切的说是一种无损伤防脱落穿刺针。
背景技术
在医学临床应用中，肌肉注射及静脉滴注是抑制病情，挽救生命的主要医疗途径，目前市场上销售和使用的穿刺针，其结构形状都是斜面针，斜面针的构造原理是在空心圆柱管体上制有一个斜面，斜面顶端外部呈锐角，斜面后部圆柱体的内侧呈一月牙形刃面，斜面向前角度越小，针尖越锋利，月牙形刃面也越锋利，月牙形刃面越锋利，刺入人体时越容易使人体组织脱落。同时由于生产厂商在加工生产时，只偏重针头的尖锐和锋利，而忽略了刃面的修复和打磨，致使针头在机床的切削加工中留下了刀痕、毛刺或倒角，这些刃角斜面上的刀痕、毛刺、倒角及月牙形刃面在注射针进入人体时，由于人体组织在弹力作用下挤入针头的中空部位，造成刃面刃角对人体组织的切割与摩擦，从而引起人体组织的脱落，脱落掉的人体组织微粒随着药液进入血管内，形成异物堵塞人体的毛细血管，对人体的健康和生命安全造成严重的危害和影响。
发明内容
本发明的目的就是提供一种无损伤无脱落的穿刺针，以解决现有穿刺针注射时对人体造成的危害，保护患者的生命安全。
本发明的方案包括针体与针头，针体为一圆形管状体，针体的前端制有针头，针头由针尖、穿刺部、导向部及泄液口组成，其结构特点是在针头的前端设有针尖，针尖的后侧设有穿刺部，穿刺部的后侧设有导向部，导向部的后侧设有泄液口。所述针尖、穿刺部及导向部是在针体的前端开口设制的斜切面，穿刺部两侧的开口处设有下刃边，导向部两侧的开口处设有上刃边，泄液口的后侧设有月牙形钝面。所述下刃边与上刃边为流线形设计，上下刃边及月牙形钝面的边角处经倒角精磨抛光加工为光滑的表面，所述针体的内外管壁经精加工制为光滑的内外表面。
本发明的优点是结构简单，设计独特，由于上下刃边及刃面的流线形设计并经过精磨抛光处理，其表面光滑，洁净如镜，使针体进入人体后能有效保证人体组织不被损伤和防止脱落，有效的保障了人体的输液注射安全。
下面结合附图作进一步详细说明。
附图说明
图1为穿刺针结构示意图；
图2为穿刺针头结构放大示意图。
具体实施方式
图1-2中示出的针体1的前端设有针头，针头的前端设有针尖6，针尖的后侧设有穿刺部5，穿刺部的后侧设有导向部4，导向部的后侧设有泄液口3，所述针尖6、穿刺部5及导向部4为针体前端开口设制的斜切面，穿刺部两侧的开口处设有下刃边7，导向部两侧的开口处设有上刃边8，泄液口的后侧设有月牙形钝面2。所述下刃边与上刃边为流线形设计，上下刃边及月牙形钝面为光滑表面，针体的内外管壁为光滑的内外表面。所述的下刃边7是在穿刺部段的管壁上由上向下垂直切削的穿刺刃边，将此段制成向下倾斜的穿刺刃边，使针头锋利，阻力小。所述的上刃边是在导向部段的管壁上水平切削的导向刃边，以便于引导针体随穿刺部进入人体。

Claims (5)

1.一种无损伤防脱落穿刺针，包括针体与针头，针体为一圆形管状体，针体的前端制有针头，针头由针尖、穿刺部、导向部及泄液口组成，其特征在于：所述针体（1）的前端设有针头，针头的前端设有针尖（6），针尖的后侧设有穿刺部（5），穿刺部的后侧设有导向部（4），导向部的后侧设有泄液口（3），所述针尖（6）、穿刺部（5）及导向部（4）为针体前端开口设制的斜切面，穿刺部两侧的开口处设有下刃边（7），导向部两侧的开口处设有上刃边（8），泄液口的后侧设有月牙形钝面（2）。
2.根据权利要求1所述的无损伤防脱落穿刺针，其特征在于：所述下刃边与上刃边为流线形设计，上下刃边及月牙形钝面为光滑表面，针体的内外管壁为光滑的内外表面。
3.根据权利要求1所述的无损伤防脱落穿刺针，其特征在于：所述的下刃边是在穿刺部段的管壁上由上向下垂直切削的穿刺刃边。
4.根据权利要求1所述的无损伤防脱落穿刺针，其特征在于：所述的上刃边是在导向部段的管壁上水平切削的导向刃边。
5.根据权利要求1所述的无损伤防脱落穿刺针，其特征在于：上下刃边及月牙形钝面的边角处经精磨抛光加工为光滑的表面。
CN201510096874.6A 2015-03-05 2015-03-05 无损伤防脱落穿刺针 Pending CN104721911A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109069737A (zh) * 2016-03-28 2018-12-21 泰尔茂株式会社 医疗用穿刺针及穿刺针的制造方法
CN109890333A (zh) * 2016-09-02 2019-06-14 爱瑞制药公司 植入物涂敷器
CN111973842A (zh) * 2015-07-30 2020-11-24 泰尔茂株式会社 医疗用穿刺针和穿刺针的制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717599A (en) * 1952-02-18 1955-09-13 Huber Jennie Needle structure
EP0495214A1 (de) * 1991-01-17 1992-07-22 Fresenius AG Kanüle
WO2001034239A2 (en) * 1999-11-09 2001-05-17 Grooters Ronald K Improved aortic cannula with spoon-shaped lip
US6517523B1 (en) * 1999-03-15 2003-02-11 Kaneko Kogyo Inc. Needle for injection syringe and method for manufacturing the same
CN103889487A (zh) * 2012-01-09 2014-06-25 费森尤斯卡比德国有限公司 用于穿刺输液港导管的输液港套管针
CN204501919U (zh) * 2015-03-05 2015-07-29 倪治法 无损伤防脱落穿刺针

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717599A (en) * 1952-02-18 1955-09-13 Huber Jennie Needle structure
EP0495214A1 (de) * 1991-01-17 1992-07-22 Fresenius AG Kanüle
US6517523B1 (en) * 1999-03-15 2003-02-11 Kaneko Kogyo Inc. Needle for injection syringe and method for manufacturing the same
WO2001034239A2 (en) * 1999-11-09 2001-05-17 Grooters Ronald K Improved aortic cannula with spoon-shaped lip
CN103889487A (zh) * 2012-01-09 2014-06-25 费森尤斯卡比德国有限公司 用于穿刺输液港导管的输液港套管针
CN204501919U (zh) * 2015-03-05 2015-07-29 倪治法 无损伤防脱落穿刺针

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111973842A (zh) * 2015-07-30 2020-11-24 泰尔茂株式会社 医疗用穿刺针和穿刺针的制造方法
CN109069737A (zh) * 2016-03-28 2018-12-21 泰尔茂株式会社 医疗用穿刺针及穿刺针的制造方法
CN109069737B (zh) * 2016-03-28 2021-03-30 泰尔茂株式会社 医疗用穿刺针及穿刺针的制造方法
CN109890333A (zh) * 2016-09-02 2019-06-14 爱瑞制药公司 植入物涂敷器

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Application publication date: 20150624