CN201379576Y - 一次性采血针 - Google Patents

一次性采血针 Download PDF

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Publication number
CN201379576Y
CN201379576Y CN200920096338U CN200920096338U CN201379576Y CN 201379576 Y CN201379576 Y CN 201379576Y CN 200920096338 U CN200920096338 U CN 200920096338U CN 200920096338 U CN200920096338 U CN 200920096338U CN 201379576 Y CN201379576 Y CN 201379576Y
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needle
needle body
disposable blood
blood taking
positioning edge
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张立波
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Tianjin Huahong Polytron Technologies Inc
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张立波
崔成哲
李兵
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Priority to PCT/CN2010/000404 priority patent/WO2010118628A1/zh
Priority to US13/142,269 priority patent/US20110257669A1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15142—Devices intended for single use, i.e. disposable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/150022—Source of blood for capillary blood or interstitial fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • A61B5/150549—Protectors removed by rotational movement, e.g. torsion or screwing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058—Joining techniques used for protective means
    • A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694—Procedure for removing protection means at the time of piercing
    • A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15103—Piercing procedure
    • A61B5/15107—Piercing being assisted by a triggering mechanism
    • A61B5/15111—Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
    • A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
    • A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides

Abstract

本实用新型涉及一种一次性采血针。本实用新型属于医疗器具技术领域。一次性采血针，包括针管和设在针管内的针体，其特点是：针管内壁设有针体滑动的滑槽，滑槽前端有定位棱，针体一端连装有弹簧，针体另一端配装有伸缩帽，针体前端有楔形面，伸缩帽有斜端面与针体楔形面相对应，伸缩帽与针体安装时位于定位棱一侧，使用时伸缩帽压入推动针体移动至定位棱端时，针体旋转至棱的另一侧由弹簧弹出，使针尖从针管前端露出。本实用新型具有结构紧凑、使用方便、制作工艺简单、设备要求低、大大降低生产成本，可大规模化制作生产和推广使用等优点。

Description

一次性采血针
技术领域
本实用新型属于医疗器具技术领域，特别是涉及一种一次性采血针。
背景技术
目前，市场上采血针有多种方式，其中采血笔是一种较为先进的采用器具，具有方便、快速等优点。采血笔在使用时每次采血就是说针体为一次性的，而笔杆不是抛弃型的，因此，存在二次使用的危险性，容易造成病患间的相互感染，存在极大的安全隐患，而现有一次生抛弃型采血针存在结构复杂、制作工艺要求高、生产成高等技术缺陷，而且存使用不便，安全性差等问题。
发明内容
本实用新型为解决现有技术存在的问题，提供了一种一次性采血针。
本实用新型目的是提供一种结构简单，制作成本低，没有二次污染，使时更换笔头，也用方便等特点的一次性采血针。
本实用新型一次性采血针采用如下技术方案：
一次性采血针，包括针管和设在针管内的针体，其特点是：针管内壁设有针体滑动的滑槽，滑槽前端有定位棱，针体一端连装有弹簧，针体另一端配装有伸缩帽，针体前端有楔形面，伸缩帽有斜端面与针体楔形面相对应，伸缩帽与针体安装时位于定位棱一侧，使用时伸缩帽压入推动针体移动至定位棱端时，针体旋转至定位棱的另一侧由弹簧弹出，使针尖从针管前端露出。
本实用新型一次性采血针还可以采用如下技术措施：
所述的一次性采血针，其特点是：伸缩帽有针体滑动槽，针体旋转至定位棱的另一侧时，伸缩帽套装在针体上。
所述的一次性采血针，其特点是：针体上嵌有针，针尖设有针套。
所述的一次性采血针，其特点是：针套前端有扁平头，旋转扁平头方式断开针套与针体连接，拔出针套露出针尖。
所述的一次性采血针，其特点是：弹簧的松驰长度为保持针体的针尖缩入针管内的尺寸。
所述的一次性采血针，其特点是：针管为圆筒形、方形或棱形。
所述的一次性采血针，其特点是：针管圆筒形外表面设有防滚动平面。
所述的一次性采血针，其特点是：弹簧固定在盖上，盖与针管过盈配合安装在一起。
本实用新型具有的优点和积极效果：
一次性采血针，由于采用本实用新型全新的技术方案，因此，该采血针在使用前其弹簧几乎处在不压缩状态，长期存放不会导致弹簧变形，保证针尖弹出力度一致。该采血针由于取消发射按钮，避免了无意间压动按钮的误操作现象。同时，该采用针消除了二次使用的危险性，避免了病患间的相互感染，安全性大大提高。本实用新型具有结构紧凑、使用方便、制作工艺简单、设备要求低、大大降低生产成本，可大规模化制作生产和推广使用等优点。
附图说明
图1是本实用新型一次性采血针结构示意图；
图2是图1中的针管立体结构示意图；
图3是图2中的俯视结构示意图；
图4是图2的A-A剖视结构示意图；
图5是图5的B-B剖视结构示意图；
图6是图1中的伸缩套立体结构示意图；
图7是图6的俯视结构示意图；
图8是针体立体结构示意图；
图9是图8的平面结构示意图；
图10是图9的俯视结构示意图；
图11是针体无针套带弹簧结构示意图；
图12是盖立体结构示意图；
图13是图12的俯视结构示意图。
图中：1、针管，2、伸缩帽，3、针套，4、滑槽，5、定位棱，6、滑动槽，7、针体，8、楔形面，9、针尖，10、弹簧，11、盖。
具体实施方式
为能进一步了解本实用新型的技术内容、特点及功效，兹列举以下实例，并配合附图详细说明如下：
实施例
参照附图1、图2、图3、图4、图5、图6、图7、图8、图9、图10、图11、图12和图13。
一次性采血针，包括针管和设在针管内的针体，针管1内壁设有针体滑动的滑槽4，滑槽4前端有定位棱5，针体一端连装有弹簧10，弹簧10固定在盖11上，盖11与针管1过盈配合安装在一起。针体7另一端配装有伸缩帽2，针体前端有楔形面，伸缩帽2有斜端面与针体楔形面8相对应，伸缩帽与针体7安装时位于定位棱5一侧，使用时伸缩帽2压入推动针体7移动至定位棱5端时，针体7旋转至棱的另一侧由弹簧10弹出，使针尖从针管前端露出。伸缩帽2有针体滑动槽6，针体7旋转至棱的另一侧时，伸缩帽2套装在针体7上。
体上嵌有针，针尖设有针套3。针套3前端有扁平头，旋转扁平头方式断开针套与针体连接，拔出针套露出针尖9。
弹簧的松驰长度为保持针体的针尖缩入针管内的尺寸。针管为圆筒形，圆筒形外表面设有防滚动两个平面。
本实施例的安装与使用：
安装时：针体前端楔形面与伸缩帽斜端面相对应，伸缩帽与针体安装时位于定位棱一侧，在弹簧的弹力作用下，针体推动伸缩帽，使伸缩帽露出针管。
使用时：旋拧针套使针套拔出针套露出针尖，手握针管使伸缩帽对准采血部位，推压针管从而向内压推伸缩帽，进而推动针体移动，压缩弹簧，待针体移动至定位棱端时，针体旋转至棱的另一侧由弹簧弹出，使针尖从针管前端露出。伸缩帽2有针体滑动槽6，针体7旋转至定位棱的另一侧时，伸缩帽2斜端面与针体楔形面8错开，针体楔形面8部分进入伸缩帽2的滑动槽6内，伸缩帽2套装在针体7上，针体7的针尖9弹露出伸缩帽2和针管1，实现采血针功能。待针尖弹出针管后，由于弹簧的松驰长度为保持针体的针尖缩入针管内的尺寸，从而弹簧再拉回针体使针尖缩入针管内。针管为圆筒形，圆筒形外表面设有两个平面，可有效防止采血针滚动，便于放置与使用。

Claims (8)

1.一次性采血针，包括针管和设在针管内的针体，其特征是：针管内壁设有针体滑动的滑槽，滑槽前端有定位棱，针体一端连装有弹簧，针体另一端配装有伸缩帽，针体前端有楔形面，伸缩帽有斜端面与针体楔形面相对应，伸缩帽与针体安装时位于定位棱一侧，使用时伸缩帽压入推动针体移动至定位棱端时，针体旋转至定位棱的另一侧由弹簧弹出，使针尖从针管前端露出。
2.按照权利要求1所述的一次性采血针，其特征是：伸缩帽有针体滑动槽，针体旋转至定位棱的另一侧时，伸缩帽套装在针体上。
3.按照权利要求1所述的一次性采血针，其特征是：针体上嵌有针，针尖设有针套。
4.按照权利要求3所述的一次性采血针，其特征是：针套前端有扁平头，旋转扁平头方式断开针套与针体连接，拔出针套露出针尖。
5.按照权利要求1所述的一次性采血针，其特征是：弹簧的松驰长度为保持针体的针尖缩入针管内的尺寸。
6.按照权利要求1所述的一次性采血针，其特征是：针管为圆筒形、方形或棱形。
7.按照权利要求6所述的一次性采血针，其特征是：针管圆筒形外表面设有防滚动平面。
8.按照权利要求1所述的一次性采血针，其特征是：弹簧固定在盖上，盖与针管过盈配合安装在一起。
CN200920096338U 2009-04-17 2009-04-17 一次性采血针 Expired - Lifetime CN201379576Y (zh)

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PCT/CN2010/000404 WO2010118628A1 (zh) 2009-04-17 2010-03-30 一次性采血针
US13/142,269 US20110257669A1 (en) 2009-04-17 2010-03-30 Disposable lancet

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WO2010118628A1 (zh) * 2009-04-17 2010-10-21 天津华鸿医材有限公司 一次性采血针
CN102028479A (zh) * 2010-12-06 2011-04-27 王振民 一次性触压式安全无痛采血器
CN102178538A (zh) * 2011-06-07 2011-09-14 天津九安医疗电子股份有限公司 一种采血笔
CN102309331A (zh) * 2011-09-02 2012-01-11 苏州乔阳医学科技有限公司 前压式一次性安全采血针
CN102988062A (zh) * 2011-09-09 2013-03-27 天津华鸿科技有限公司 采血针装置
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CN102028479A (zh) * 2010-12-06 2011-04-27 王振民 一次性触压式安全无痛采血器
CN102178538A (zh) * 2011-06-07 2011-09-14 天津九安医疗电子股份有限公司 一种采血笔
CN102178538B (zh) * 2011-06-07 2013-05-01 天津九安医疗电子股份有限公司 一种采血笔
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