CN101143096B - 预负压抽吸式深部动静脉导丝置入器 - Google Patents

预负压抽吸式深部动静脉导丝置入器 Download PDF

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CN101143096B
CN101143096B CN200710035795XA CN200710035795A CN101143096B CN 101143096 B CN101143096 B CN 101143096B CN 200710035795X A CN200710035795X A CN 200710035795XA CN 200710035795 A CN200710035795 A CN 200710035795A CN 101143096 B CN101143096 B CN 101143096B
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CN101143096A (zh
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肖国红
付剑华
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Jiangsu health margin Medical Technology Co. Ltd.
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FUZHOU JIANLILAI MEDICAL APPARATUS Co Ltd
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Abstract

本发明涉及一种预负压抽吸式深部动静脉导丝置入器，现有国内外静脉置入技术普遍存在穿刺准确率不高，操作难度大，医务人员难以掌握技术，同时给病人带来损伤之痛苦，本发明的目的设计一种穿刺效果好，准确性高，操作简便，能自动抽血的预负压抽吸式深部动静脉导丝置入器，该装置由针头、针头连接套、活塞套、活塞内芯四部分构成，它采用负压自动抽吸方式，在穿刺针头连接套上安设有负压开关，在抽吸器内芯上安设有弹片锁，保证活塞内负压形成。它设计合理，准确性好，自动抽吸效果好。

Description

预负压抽吸式深部动静脉导丝置入器
技术领域：
本发明属于医疗器具，具体涉及一种预负压抽吸式深部动静脉导丝置入器。
背景技术：
现有国内外静脉导管置入技术普遍存在着穿刺准确率不高，对病人的损伤大，并发症多，导管置入的时间不够长，操作难度大，不易掌握，因而普及率不高，以致大部分医务人员难以掌握该技术，同时也给病人增加痛苦以及影响病人的救治时机。
发明内容：
本发明的目的是根据上述不足之处而提供一种操作使用方便、准确性高、无菌操作性强的预负压抽吸式深部动静脉导丝置入器。能自动抽血、可单手完成穿刺抽吸，并且可进针抽血及退针抽血，提高了穿刺成功率，减少损伤及病人的并发症，同时简化了操作技术，减轻了医务人员的劳动强度，提高医疗技术效果。
本发明是这样实现的，该装置由针头、针头连接套、活塞套、活塞内芯四部分构成，它采用负压自动抽吸，即在穿刺针头连接套上设有负压开关，在抽吸器内芯上安设有弹片锁，保证活塞内负压形成。该装置呈注射器结构状，在活塞套内安装有活塞内芯，在活塞内芯上设置有活塞内芯弹片锁，活塞内芯的中央设有活塞内芯导丝通道，活塞内芯尾端的推杆中间设置有导丝引入口和导丝引入密封垫，在活塞套的前端与针头连处有针头连接套，在针头连接套上设置有负压开关阀，针头连接套前端与针头相连接，后端通过开关阀与活塞套相连接。
附图说明：
图1为本发明整体结构示意图
图2为本发明针头A部分结构示意图
图3为本发明针头连接套B部分结构示意图
图4为本发明活塞套C部分结构示意图
图5为本发明活塞内芯D部分结构示意图
图标号：
A、针头  B、针头连接套  C、活塞套  D、活塞内芯  A1、穿刺针体  A2、针头连接孔  B1、针头连接头  B2、负压开关阀B3、开关阀活塞连接头  C1、活塞开关阀连接头  C2、活塞套  C3、导丝引入管  D1、活塞内芯密封圈  D2、活塞内芯导丝通道  D3、活塞内芯弹片锁  D4、导丝引入密封垫  D5、导丝引入口
具体实施方式：
本发明的预负压抽吸式深部动静脉导丝置入器，它由针头A、针头连接管B、活塞套C、活塞内芯D四部分构成整体装置；所述的活塞套C内安装有活塞内芯D，针头连接套B前端与针头A相连接，后端与活塞套C相连接；所述的针头A设有穿刺针体A1、针头连接孔A2；在穿刺针的针头连接套B设有针头连接头B1、负压开关阀B2、开关 阀活塞连接头B3；所述的活塞套C设有活塞开关阀连接头C1、导丝引入管C3；所述的活塞内芯D设有活塞内芯密封圈D1，活塞内芯D的中央设有活塞内芯导丝通道D2，在活塞内芯尾端的推杆中间设置有导丝引入口D5和导丝引入密封垫D4，在活塞内芯D上安设有弹片锁D3，锁定形成负压自动抽吸器装置。
它形成负压自动抽吸，其工作原理，当关闭针头连接头B1上的负压开关阀B2使活塞C腔内呈密封状态锁住，再后拉活塞内芯D至内芯弹片锁D3锁住，保持腔内已形成的负压，然后将针头刺入组织打开负压开关阀B2，负压发生抽吸，当活塞套C腔内负压抽吸到血液后，即把握置入器于静止状态，再在内芯导丝引入口D5处插入导丝直至所穿刺的血管腔内，然后保留导丝于血管内，拨除置入器，完成导丝置入血管腔内。

Claims (1)

1.一种预负压抽吸式深部动静脉导丝置入器，其特征是，其由针头(A)、针头连接套(B)、活塞套(C)、活塞内芯(D)四部分构成；所述的活塞套(C)内安装有活塞内芯(D)，针头连接套(B)前端与针头(A)相连接，后端与活塞套(C)相连接；所述的针头(A)设有穿刺针体(A1)、针头连接孔(A2)；所述的针头连接套(B)设有针头连接头(B1)、负压开关阀(B2)、开关阀活塞连接头(B3)；所述的活塞套(C)设有活塞开关阀连接头(C1)、导丝引入管(C3)；所述的活塞内芯(D)设有活塞内芯密封圈(D1)，活塞内芯(D)的中央设有活塞内芯导丝通道(D2)，在活塞内芯尾端的推杆中间设置有导丝引入口(D5)和导丝引入密封垫(D4)，在活塞内芯(D)上安设有活塞内芯弹片锁(D3)，锁定形成负压自动抽吸器装置。
CN200710035795XA 2007-09-24 2007-09-24 预负压抽吸式深部动静脉导丝置入器 Active CN101143096B (zh)

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ES2870511T3 (es) * 2016-01-28 2021-10-27 Totle Dev Aps Jeringuilla de biopsia
CN105877814B (zh) * 2016-03-28 2018-01-30 西南医科大学附属医院 一种压力可调的负压穿刺针筒
CN107158492A (zh) * 2017-07-04 2017-09-15 宁波鸿坤电器有限公司 一种引流针
CN109674580A (zh) * 2019-02-14 2019-04-26 中国医学科学院北京协和医院 鼓膜穿刺负压抽吸装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2325033Y (zh) * 1997-11-15 1999-06-23 韩新巍 注射器半自动负压抽吸锁定器
CN2406614Y (zh) * 2000-01-05 2000-11-22 高炳源 针筒式一次性使用真空负压采血器
CN1785450A (zh) * 2005-11-25 2006-06-14 肖国红 深部动静脉置管器
EP1736108A1 (en) * 2005-06-24 2006-12-27 Terumo Kabushiki Kaisha Cathether assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2325033Y (zh) * 1997-11-15 1999-06-23 韩新巍 注射器半自动负压抽吸锁定器
CN2406614Y (zh) * 2000-01-05 2000-11-22 高炳源 针筒式一次性使用真空负压采血器
EP1736108A1 (en) * 2005-06-24 2006-12-27 Terumo Kabushiki Kaisha Cathether assembly
CN1785450A (zh) * 2005-11-25 2006-06-14 肖国红 深部动静脉置管器

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