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WO2014032382A1 - 安全输液针 - Google Patents

安全输液针 Download PDF

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Publication number
WO2014032382A1
WO2014032382A1 PCT/CN2012/087978 CN2012087978W WO2014032382A1 WO 2014032382 A1 WO2014032382 A1 WO 2014032382A1 CN 2012087978 W CN2012087978 W CN 2012087978W WO 2014032382 A1 WO2014032382 A1 WO 2014032382A1
Authority
WO
WIPO (PCT)
Prior art keywords
infusion
safety
infusion needle
safety sleeve
needle
Prior art date
Application number
PCT/CN2012/087978
Other languages
English (en)
French (fr)
Inventor
张谦
陈洪
Original Assignee
浙江康德莱医疗器械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江康德莱医疗器械股份有限公司 filed Critical 浙江康德莱医疗器械股份有限公司
Publication of WO2014032382A1 publication Critical patent/WO2014032382A1/zh

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Classifications

    • 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
    • A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • A61M5/1626—Needle protectors therefor
    • 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

Definitions

  • the utility model relates to a medical device, in particular to a safe infusion needle.
  • China is the most common country using intravenous injection, and a large number of used disposable infusion needles are discarded every year in hospitals.
  • the used disposable infusion needles need to be recycled.
  • the existing infusion needles will be equipped with safety sleeves.
  • An axial sliding groove is disposed on both sides of the safety sleeve, and the infusion needle is slidably disposed in the safety sleeve, and the needle of the infusion needle is exposed from the sliding groove, and the sliding slot is located near the tail end of the sliding groove
  • the edge will be provided with a right-angled triangular projection to narrow the chute there, and at the same time form a stop stop to form the infusion needle locking mechanism.
  • the purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art, and to provide a safe and reliable safe infusion needle.
  • the utility model discloses a safety infusion needle, which comprises an infusion needle provided with a needle wing and a safety sleeve.
  • the infusion needle tail is connected with an infusion tube, and the infusion needle is slidably arranged in the safety sleeve.
  • the utility model is characterized in that: the end wall of the safety sleeve is provided with an infusion tube bayonet formed by a notch, and the bayonet port is smaller than the diameter of the infusion tube, and the infusion tube must be squeezed to be engaged.
  • the tail pipe wall of the safety sleeve of the safety infusion needle is provided with an infusion tube bayonet formed by a notch, and the size of the bayonet is smaller than the diameter of the infusion tube, and the infusion tube must be squeezed to be engaged.
  • the infusion needle is used, the infusion needle is retracted into the safety sleeve, and the infusion tube of the tail end is stuck in the bayonet by the characteristic of the infusion tube, which can reliably restrict the infusion needle to the safety sleeve.
  • FIG. 1 is a schematic view showing a three-dimensional structure before use according to a specific embodiment of the present invention
  • FIG. 2 is a schematic exploded view of a specific embodiment of the present invention.
  • Figure 3 is a schematic view showing the three-dimensional structure of the embodiment of the present invention after use
  • Figure 4 is a cross-sectional view of Figure 3.
  • the safety infusion needle includes an infusion needle 1 provided with a needle 2, a safety sleeve 3 and a needle sheath 5, and an infusion tube 4 is connected to the tail of the infusion needle 1, and the infusion needle 1 can be Slidably disposed in the safety sleeve 3, the safety sleeve 3 is provided with an infusion needle locking mechanism, and the end wall of the safety sleeve 3 is provided with an infusion tube mount 301 formed by a notch, and the shape of the infusion tube mount 301 Preferably, a combination of a circular shape and a flared shape, the flared portion facing outward, the diameter of the circular portion being smaller than the diameter of the safety sleeve 3, but not too small to accommodate the infusion tube 4.
  • the safety infusion needle 1 can also be provided with an infusion needle locking mechanism.
  • the safety sleeve 3 is provided with axial sliding slots 302 on both sides thereof.
  • the needle wing 2 is exposed from the sliding slot 302, and the infusion needle locking mechanism is disposed at
  • the elastic piece 303 is formed inside the safety sleeve 3, and the elastic piece 303 is disposed in the axial direction.
  • One end near the front end of the safety sleeve 3 is fixed on the pipe wall, and the other end is a free end and is inclined upward toward the center.
  • the elastic piece 303 is preferably disposed integrally with the safety sleeve 3.
  • the U-shaped through groove 304 is disposed on the wall of the safety sleeve 3, and the U-shaped through groove 304 is formed on the end of the partial tube wall to form the elastic piece 303.
  • the safety sleeve 3 is preferably composed of two parts, an upper cover 305 and a bottom plate 306, and the upper cover 305 and the bottom plate 306 are snap-fitted.

Landscapes

  • 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

一种安全输液针，包括设有针翼（2）的输液针（1）及安全套管（3）。所述输液针尾部连接有输液管（4），所述输液针（1）可滑动设置在安全套管（3）中。所述安全套管（3）上设有输液针锁扣机构，所述安全套管（3）的尾端管壁设有由缺口构成的输液管卡口（301），所述卡口要小于输液管（4）的直径，须将输液管（4）挤压才能卡入。当输液针（1）使用过后，将输液针退回至安全套管（3）中后，利用输液管（4）具有一定的弹性的特点将其尾端的输液管卡在卡口（301）中，能够非常可靠的将输液针限制在安全套管（3）中。

Description

安全输液针
本实用新型涉及一种医疗器械，特别涉及一种安全输液针。
根据有关统计，我国是使用静脉注射最普遍的国家，医院里每年都有大量使用过的一次性输液针被废弃。为了回收有用金属和避免污染环境，需要将使用过的一次性输液针进行回收处理，为了防止在回收过程中扎伤相关人员，导致伤害和二次感染，现有的输液针会配有安全套管，所述安全套管两侧设有轴向滑槽，所述输液针可滑动地设置在安全套管中，所述输液针的针翼从滑槽中露出，在靠近滑槽尾端的位置，滑槽边缘会设有一个直角三角形的凸起使得该处的滑槽变窄，并同时形成一个止退的挡块构成输液针锁扣机构。一次性输液针使用过后捏住针翼顺滑槽将针翼拉过挡块阻止针翼反向滑动，使得输液针缩入在安全套管中，可避免扎伤相关人员。由于滑槽相对比较长，安全套管通常采用塑料制成，具有一定的弹性，因此现有安全输液针输液针的锁扣机构仍存在挡块不能可靠地卡住针翼的问题。
本实用新型的目的是为了克服现有技术存在的缺点和不足，而提供一种更加安全可靠的安全输液针。
为了达到上述目的，本实用新型公开了一种安全输液针，包括设有针翼的输液针及安全套管，所述输液针尾部连接有输液管，所述输液针可滑动地设置在安全套管中，其特征在于：所述安全套管的尾端管壁设有由缺口构成的输液管卡口，所述卡口要小于输液管的直径，须将输液管挤压才能卡入
与现有技术相比较，本安全输液针的安全套管的尾端管壁设有由缺口构成的输液管卡口，卡口的尺寸小于输液管直径，，须将输液管挤压才能卡入。当输液针使用过后，将输液针退回至安全套管中后，利用输液管具有一定的弹性的特点将其尾端的输液管卡在卡口中，能够非常可靠的将输液针限制在安全套管中。
图1 为本实用新型具体实施方式使用前立体结构示意图；
图2 为本实用新型具体实施方式结构分解示意图；
图3为本实用新型具体实施方式使用后立体结构示意图；
图4为图3剖视图。
如图1-2所示，安全输液针包括设有针翼2的输液针1及安全套管3和针管护套5，所述输液针1尾部连接有一段输液管4，所述输液针1可滑动地设置在安全套管3中，所述安全套管3上设有输液针锁扣机构，安全套管3的尾端管壁设有由缺口构成的输液管卡口301，输液管卡口301的形状优选为圆形和喇叭形的结合，所述喇叭形部分朝向外侧，所述圆形部分直径小于安全套管3直径，但是也不能过小以至于无法容纳输液管4。安全输液针1同时还可以设置有输液针锁扣机构，安全套管3两侧设有轴向滑槽302，所述针翼2从滑槽302中露出，所述输液针锁扣机构由设置在安全套管3内部的弹性片303构成，弹性片303沿轴向设置，靠近安全套管3前端的一端固定在管壁上，另一端为自由端并向中心倾斜上翘。弹性片303优选与安全套管3一体设置，具体实在所述安全套管3管壁上设有U形透槽304，所述U形透槽304围绕部分管壁端部上翘构成所述弹性片303。为了方便生产，安全套管3优选由上盖305和底板306两部分组成，上盖305和底板306采用卡扣连接。

Claims (4)

  1. 一种安全输液针，包括设有针翼的输液针及安全套管，所述输液针尾部连接有输液管，所述输液针可滑动地设置在安全套管中，其特征在于：所述安全套管的尾端管壁设有由缺口构成的输液管卡口，所述卡口要小于输液管的直径，须将输液管挤压才能卡入。
  2. 据权利要求1所述的安全输液针，其特征在于：所述输液管卡口的形状为圆形和喇叭形的结合，所述喇叭形部分朝向外侧，所述圆形部分直径小于安全套管直径。
  3. 根据权利要求2所述的安全输液针，其特征在于：所述安全套管上还设有输液针锁扣机构，所述安全套管两侧设有轴向滑槽，所述针翼从滑槽中露出，所述输液针锁扣机构由设置在安全套管内部的弹性片构成，弹性片沿轴向设置，靠近安全套管前端的一端固定在管壁上，另一端为自由端并向中心倾斜上翘。
  4. 根据权利要求3所述的安全输液针，其特征在于：所述安全套管管壁上设有U形透槽，所述U形透槽围绕部分管壁端部上翘构成所述弹性片。
PCT/CN2012/087978 2012-08-31 2012-12-31 安全输液针 WO2014032382A1 (zh)

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Application Number Priority Date Filing Date Title
CN201220439646.6U CN202724368U (zh) 2012-08-31 2012-08-31 安全输液针
CN201220439646.6 2012-08-31

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WO2014032382A1 true WO2014032382A1 (zh) 2014-03-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105877765A (zh) * 2016-06-27 2016-08-24 北京光耀世纪医疗科技有限公司 一种安全式穿刺针
CN106581816A (zh) * 2016-11-09 2017-04-26 殷峰 一种一次性防刺伤输液针头
CN109847172A (zh) * 2019-01-31 2019-06-07 常州市第二人民医院 一种防针刺内瘘穿刺针

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL234746A0 (en) 2014-09-18 2014-11-30 Equashield Medical Ltd Improved needle valve and connectors for use in fluid transfer devices
CN105056340A (zh) * 2015-08-18 2015-11-18 天津哈娜好医材有限公司 安全式医用穿刺针及使用方法
CN105126195B (zh) * 2015-08-18 2018-01-23 天津哈娜好医材有限公司 自锁式医用穿刺针及使用方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2430168Y (zh) * 2000-06-16 2001-05-16 威海市医用高分子有限公司 静脉输液针
CN1463758A (zh) * 2002-06-17 2003-12-31 上海康德莱企业发展集团有限公司 一种带安全装置的输液针
CN2714066Y (zh) * 2004-03-03 2005-08-03 康德保生化科技股份有限公司 改进的蝴蝶针安全套结构
US20060100585A1 (en) * 2004-08-06 2006-05-11 Tung-Hua Wang Safety device of butterfly needle
CN200951238Y (zh) * 2005-12-21 2007-09-26 刘晗 一次性使用安全静脉输液针
CN100463703C (zh) * 2003-02-11 2009-02-25 香港华陀科技股份有限公司 抛弃式蝴蝶针安全针套

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2430168Y (zh) * 2000-06-16 2001-05-16 威海市医用高分子有限公司 静脉输液针
CN1463758A (zh) * 2002-06-17 2003-12-31 上海康德莱企业发展集团有限公司 一种带安全装置的输液针
CN100463703C (zh) * 2003-02-11 2009-02-25 香港华陀科技股份有限公司 抛弃式蝴蝶针安全针套
CN2714066Y (zh) * 2004-03-03 2005-08-03 康德保生化科技股份有限公司 改进的蝴蝶针安全套结构
US20060100585A1 (en) * 2004-08-06 2006-05-11 Tung-Hua Wang Safety device of butterfly needle
CN200951238Y (zh) * 2005-12-21 2007-09-26 刘晗 一次性使用安全静脉输液针

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105877765A (zh) * 2016-06-27 2016-08-24 北京光耀世纪医疗科技有限公司 一种安全式穿刺针
CN105877765B (zh) * 2016-06-27 2018-07-27 北京光耀世纪医疗科技有限公司 一种安全式穿刺针
CN106581816A (zh) * 2016-11-09 2017-04-26 殷峰 一种一次性防刺伤输液针头
CN109847172A (zh) * 2019-01-31 2019-06-07 常州市第二人民医院 一种防针刺内瘘穿刺针

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