WO2008000148A1 - Safety catheter - Google Patents
Safety catheter Download PDFInfo
- Publication number
- WO2008000148A1 WO2008000148A1 PCT/CN2007/001916 CN2007001916W WO2008000148A1 WO 2008000148 A1 WO2008000148 A1 WO 2008000148A1 CN 2007001916 W CN2007001916 W CN 2007001916W WO 2008000148 A1 WO2008000148 A1 WO 2008000148A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- safety
- slot
- indwelling needle
- protect sheath
- guiding channel
- Prior art date
Links
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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
-
- 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 present invention relates to a disposable medical device, and more particularly to a safety type indwelling needle for use in human body fluids, intravenous fluids (blood), pressure measurement, and the like. Background technique
- the indwelling needle generally includes a puncture needle and an indwelling catheter that is placed on the puncture needle, and the indwelling catheter is used to inject the drug into the patient. Therefore, the indwelling needle has the advantages of reducing the number of vascular punctures, reducing fluid extravasation, and being less irritating to blood vessels, which is beneficial to clinical medication and emergency rescue.
- the safety protective shell is a tubular casing 1 having a length larger than the length of the puncture needle assembly 2, and a puncture needle is provided on the shell surface at the rear end of the safety protective shell.
- the locking groove 11 of the piece 21 is positioned, and a guiding groove connected to the locking groove and extending along the length direction of the safety protective case to the end thereof.
- the front end 13 of the safety protective casing can be inserted into the slot 31 of the end of the conduit seat 3 and the front end 13 of the safety protective casing; the root of the piercing needle blade 21 can be The guide groove 11 of the safety protective case moves in the guide groove 12 until it enters the lock groove 12.
- the indwelling needle is provided with a safety protective shell, so that the puncture needle enters the safety protective shell while exiting from the indwelling sleeve, so that the puncture needle is shielded, thereby fundamentally preventing the medical staff from being stabbed by the puncture needle and infecting the disease event. happened.
- the confirmation book is The connection method, on the one hand, lacks an effective locking function, so that when the puncture needle assembly 2 is withdrawn from the indwelling sleeve into the safety protective casing, there is a risk of falling off, which affects the safety performance of the use; on the other hand, the end portion 13 of the safety protective casing
- the degree of matching with the slot 31 of the catheter hub is often required to be high, thereby reducing the versatility of the safety shield. Summary of the invention
- the invention provides a safety type indwelling needle, comprising a catheter socket and a safety protection shell, wherein the safety protection shell is provided with a guiding channel, wherein: the outer wall of the outer end of the catheter seat is provided There is a bump, and a fastening hole that is matched with the protrusion is disposed on a wall surface of the front end of the safety protection shell.
- a beveled positioning flange provided on one side of the guide groove at the rear end of the safety protective case, and a guide groove located behind the flange is a lock groove.
- a protrusion which is offset from the guiding channel is provided on a side of the guiding channel at the rear end of the safety protective shell, and a depression is provided on the other side of the guiding channel. groove.
- Fig. 1) is a partial structural exploded view of a conventional winged safety intravenous infusion needle
- Fig. 1 (b) is a schematic view showing the structure of a safety protective shell of a conventional winged safety intravenous infusion needle
- FIG. 2 is a partial exploded view showing the structure of the safety type indwelling needle of the present invention
- Fig. 2 (a) is a partially exploded perspective view showing an embodiment of the safety type indwelling needle of the present invention
- Fig. 2 (b) is a partially exploded perspective view showing another embodiment of the safety type indwelling needle of the present invention.
- the structure of the safety protective shell may be: as shown in FIG. 2( a ), a diagonal positioning flange 14 disposed on one side of the guiding channel 1 at the rear end of the safety protective shell 1 ′ is located behind the flange 14
- the guiding channel is a locking groove 12, .
- the structure of the safety protection shell may also be as follows: as shown in FIG. 2(b), a side of the guide channel 11 of the rear end of the safety protection shell 1 is provided with a protrusion which is offset from the guide channel 11 14", a lower trap 15 is provided on the other side of the guiding channel.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A safety catheter comprises a catheter seat (3') and a safety protect sheath (1'; 1''). A directing slot (11'') is provided on the safety protect sheath (1'; 1''). A projecting block (32) is provided on outer wall of the outer end of the catheter seat (3'). A snap fitting aperture (12) providing a snap fitting with the projecting block (32) is provided on the wall face of the front end of the safety protect sheath (1'; 1''). Wherein the safety protect sheath (1'; 1'') can have one following structure (1'): an inclined positioning flange (14) is provided on one side of the directing slot (11'') of the rear end of the safety protect sheath (1'; 1''), and the directing slot (11'') behind the positioning flange (14) is a locking slot (12'). However the safety protect sheath (1'; 1'') can have the other following structure (1''): a protrusion (14'') misaligned with the directing slot (11'') is provided on one side of the directing slot (11'') of the rear end of the safety protect sheath (1'; 1''), and a sinking slot (15) is provided on the other side of the directing slot (11'').
Description
一种安全型留置针 技术领域 Safety type indwelling needle
本发明涉及一种一次性使用的医疗器械， 尤其涉及用于人体动、 静脉输液 (血） 、 测压等使用的安全型留置针。 背景技术 The present invention relates to a disposable medical device, and more particularly to a safety type indwelling needle for use in human body fluids, intravenous fluids (blood), pressure measurement, and the like. Background technique
留置针一般包括穿刺针和套在穿刺针上的留置导管， 是利用留置导管向患 者进行动、静脉输注药液。因此留置针具有减少血管穿刺次数、减少液体外渗， 以及对血管刺激性小， 有利于临床用药和紧急抢救等优点。 The indwelling needle generally includes a puncture needle and an indwelling catheter that is placed on the puncture needle, and the indwelling catheter is used to inject the drug into the patient. Therefore, the indwelling needle has the advantages of reducing the number of vascular punctures, reducing fluid extravasation, and being less irritating to blood vessels, which is beneficial to clinical medication and emergency rescue.
但现有的留置针针管组件在穿刺完毕并拔出后是处于暴露在外的状态， 因 此医护人员在清理、 销毁废弃留置针针管组件时容易受意外***害。 However, the existing indwelling needle needle assembly is exposed to the state after the puncture is completed and pulled out, so the medical staff is vulnerable to accidental needle sticking when cleaning and destroying the indwelling needle needle assembly.
医疗器械中因尖锐针的误穿刺引起的污染、 感染已成为社会问题。 所以防 止误穿刺等偶然事故的手段是业界一直关注的内容之一。 Pollution and infection caused by accidental puncture of sharp needles in medical devices have become a social problem. Therefore, the means to prevent accidental accidents such as accidental puncture is one of the contents that the industry has been paying attention to.
本申请人在中国专利申请号为 03141566.0， 申请日为 2003年 7月 11日中 公开了一种发明名称为 "一种带翼的安全型静脉输液留置针"的结构， 其特点 是： 设有一安全保护壳。 参见图 1 ) 〜（b) ， 该安全保护壳是一个管状壳体 1， 其长度大于所述的穿刺针组件 2 的长度， 并在该安全保护壳后端的壳面上 设有一供穿刺针翼片 21根部定位的锁槽 11， 以及一与该锁槽相连并沿所述安 全保护壳长度方向延伸至其端部的导引槽道。其中： 所述安全保护壳的前端 13 可插接在所述导管座 3端部与该安全保护壳前端 13配合设置的卡槽 31中； 所 述穿剌针翼片 21的根部可在所述安全保护壳的导引槽道 11中移动， 直至进入 锁槽 12。 The applicant has disclosed a structure entitled "A Winged Safety Intravenous Indwelling Needle" in Chinese Patent Application No. 03141566.0, filed on July 11, 2003, which is characterized by: Safety cover. Referring to FIG. 1)~(b), the safety protective shell is a tubular casing 1 having a length larger than the length of the puncture needle assembly 2, and a puncture needle is provided on the shell surface at the rear end of the safety protective shell. The locking groove 11 of the piece 21 is positioned, and a guiding groove connected to the locking groove and extending along the length direction of the safety protective case to the end thereof. Wherein: the front end 13 of the safety protective casing can be inserted into the slot 31 of the end of the conduit seat 3 and the front end 13 of the safety protective casing; the root of the piercing needle blade 21 can be The guide groove 11 of the safety protective case moves in the guide groove 12 until it enters the lock groove 12.
上述留置针通过设有的安全保护壳， 使得穿刺针从留置套管中退出的同时 进入安全保护壳， 使穿刺针得到屏蔽， 因此， 从根本上防止医护人员被穿刺针 刺伤及感染疾病事件的发生。 The indwelling needle is provided with a safety protective shell, so that the puncture needle enters the safety protective shell while exiting from the indwelling sleeve, so that the puncture needle is shielded, thereby fundamentally preventing the medical staff from being stabbed by the puncture needle and infecting the disease event. happened.
然而， 由于上述安全保护壳 1是插接在导管座端部卡槽 31中的， 这种连 确认本
接方式， 一方面缺少有效的锁定功能， 使得穿刺针组件 2从留置套管中退出进 入安全保护壳时存在着脱落隐患， 而影响使用的安全性能； 另一方面， 安全保 护壳的端部 13与导管座的卡槽 31的匹配度往往要求较高， 从而降低了安全保 护壳的通用性。 发明内容 However, since the above-mentioned safety protective case 1 is inserted into the end portion of the catheter seat, the confirmation book is The connection method, on the one hand, lacks an effective locking function, so that when the puncture needle assembly 2 is withdrawn from the indwelling sleeve into the safety protective casing, there is a risk of falling off, which affects the safety performance of the use; on the other hand, the end portion 13 of the safety protective casing The degree of matching with the slot 31 of the catheter hub is often required to be high, thereby reducing the versatility of the safety shield. Summary of the invention
本发明的目的在于提供一种使用安全性好、 通用性强的安全型留置针。 本发明所提供的一种安全型留置针， 包括导管座和安全保护壳， 该安全保 护壳上设有导引槽道， 其特征在于： 在所述的导管座的外端部的外壁上设有一 凸块， 并在所述的安全保护壳的前端的壁面上设有与该凸块相扣配的扣孔。 It is an object of the present invention to provide a safety type indwelling needle which is safe to use and has high versatility. The invention provides a safety type indwelling needle, comprising a catheter socket and a safety protection shell, wherein the safety protection shell is provided with a guiding channel, wherein: the outer wall of the outer end of the catheter seat is provided There is a bump, and a fastening hole that is matched with the protrusion is disposed on a wall surface of the front end of the safety protection shell.
在上述的安全型留置针中， 安全保护壳后端的导引槽道一侧上设有的一斜 状定位凸缘， 位于该凸缘之后的导引槽道为锁槽。 In the above-mentioned safety type indwelling needle, a beveled positioning flange provided on one side of the guide groove at the rear end of the safety protective case, and a guide groove located behind the flange is a lock groove.
在上述的安全型静脉输液留置针中， 在安全保护壳后端的导引槽道一侧上 设有一与所述导引槽道错位的凸起， 在该导引槽道另一侧设有一下陷槽。 In the above-mentioned safety intravenous infusion needle, a protrusion which is offset from the guiding channel is provided on a side of the guiding channel at the rear end of the safety protective shell, and a depression is provided on the other side of the guiding channel. groove.
采用了上述的技术解决方案， 在穿刺针使用后， 不仅可以使其针尖部分通 过安全保护壳有效地被保护起来， 实现安全丢弃， 而且通过增加的凸块和扣孔 的锁定功能使得使用的安全性得到提高， 同时提高了安全保护壳的通用性。 附图说明 The above technical solution is adopted, and after the puncture needle is used, not only the tip portion thereof can be effectively protected by the safety protective cover, the safety is discarded, and the safety of the use is enhanced by the locking function of the added bump and the buttonhole. Sexuality is improved and the versatility of the security case is improved. DRAWINGS
图 1 )是现有的带翼的安全型静脉输液留置针的部分结构分解示意图； 图 1 (b)是现有的带翼的安全型静脉输液留置针的安全保护壳的结构示意 图； Fig. 1) is a partial structural exploded view of a conventional winged safety intravenous infusion needle; Fig. 1 (b) is a schematic view showing the structure of a safety protective shell of a conventional winged safety intravenous infusion needle;
图 2是本发明安全型留置针的部分结构分解示意图； 2 is a partial exploded view showing the structure of the safety type indwelling needle of the present invention;
图 2 (a)是本发明安全型留置针的一实施例的部分结构分解示意图； 图 2 (b) 是本发明安全型留置针的另一实施例的部分结构分解示意图。 具体实施方式 Fig. 2 (a) is a partially exploded perspective view showing an embodiment of the safety type indwelling needle of the present invention; and Fig. 2 (b) is a partially exploded perspective view showing another embodiment of the safety type indwelling needle of the present invention. detailed description
如图 2所示， 本发明所提供的一种安全型留置针， 包括导管座 3' 和安全 保护壳 1 ' ， 安全保护壳上设有导引槽道， 其特点是： 在导管座 3' 的外端部
的外壁上设有一凸块 32，并在所述的安全保护壳的前端的壁面上设有与该凸块 32相扣配的扣孔 12。 As shown in FIG. 2, a safety type indwelling needle provided by the present invention comprises a catheter seat 3' and a safety protection shell 1', and the safety protection shell is provided with a guiding channel, which is characterized in that: Outer end A protrusion 32 is disposed on the outer wall of the outer wall, and a button hole 12 is formed on the wall surface of the front end of the safety protection shell.
安全保护壳的结构可以为： 如图 2 ( a) 所示，安全保护壳 1 ' 后端的导引 槽道 1 一侧上设有的一斜状定位凸缘 14， 位于该凸缘 14之后的导引槽道为 锁槽 12， 。 The structure of the safety protective shell may be: as shown in FIG. 2( a ), a diagonal positioning flange 14 disposed on one side of the guiding channel 1 at the rear end of the safety protective shell 1 ′ is located behind the flange 14 The guiding channel is a locking groove 12, .
安全保护壳的结构也可以为： 如图 2 (b) 所示， 在安全保护壳 1 "后端的 导引槽道 11 "一侧上设有一与所述导引槽道 11 "错位的凸起 14" ， 在该导引 槽道另一侧设有一下陷槽 15。 The structure of the safety protection shell may also be as follows: as shown in FIG. 2(b), a side of the guide channel 11 of the rear end of the safety protection shell 1 is provided with a protrusion which is offset from the guide channel 11 14", a lower trap 15 is provided on the other side of the guiding channel.
以上实施例仅供说明本发明之用， 而非对本发明的限制， 有关技术领域的 技术人员， 在不脱离本发明的精神和范围的情况下， 还可以作出各种变换或变 型， 因此所有等同的技术方案也应该属于本发明范畴之内， 应由各权利要求限 定。
The above embodiments are merely illustrative of the invention, and are not intended to limit the invention, and various modifications and changes can be made without departing from the spirit and scope of the invention. The technical solutions are also intended to fall within the scope of the invention and are defined by the claims.
Claims
1. 一种安全型留置针， 包括导管座和安全保护壳， 该安全保护壳上设有 导引槽道， 其特征在于： 在所述的导管座的外端部的外壁上设有一凸块， 并在 所述的安全保护壳的前端的壁面上设有与该凸块相扣配的扣孔。 A safety type indwelling needle comprising a catheter holder and a safety protection shell, wherein the safety protection shell is provided with a guiding channel, wherein: a convex block is arranged on an outer wall of the outer end portion of the catheter seat And a fastening hole that is matched with the protrusion is disposed on a wall surface of the front end of the safety protection shell.
2. 根据权利要求 1所述的安全型留置针， 其特征在于： 所述的安全保护 壳后端的导引槽道一侧上设有的一斜状定位凸缘， 位于该凸缘之后的导引槽道 为锁槽。 2. The safety type indwelling needle according to claim 1, wherein: a diagonal positioning flange provided on a side of the guiding channel at the rear end of the safety protective shell is located behind the flange The channel is a lock groove.
3. 根据权利要求 1所述的安全型留置针， 其特征在于： 所述的安全保护 壳后端的导引槽道一侧上设有一与所述导引槽道错位的凸起， 在该导引槽道另 一侧设有一下陷槽。
3. The safety type indwelling needle according to claim 1, wherein: a side of the guiding channel at the rear end of the safety protective casing is provided with a protrusion offset from the guiding channel, and the guiding The other side of the channel is provided with a trap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610027796.5 | 2006-06-19 | ||
| CNA2006100277965A CN101091812A (en) | 2006-06-19 | 2006-06-19 | Safe type retention needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008000148A1 true WO2008000148A1 (en) | 2008-01-03 |
Family
ID=38845117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2007/001916 WO2008000148A1 (en) | 2006-06-19 | 2007-06-19 | Safety catheter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101091812A (en) |
| WO (1) | WO2008000148A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016007442A1 (en) * | 2014-07-08 | 2016-01-14 | Becton, Dickinson And Company | Peripheral intravenous catheter with winged grip |
| US10639454B2 (en) | 2016-03-28 | 2020-05-05 | Becton, Dickinson And Company | Ergonomic IV systems and methods |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203043148U (en) * | 2012-11-27 | 2013-07-10 | 英属维尔京群岛圣采科技投资有限公司 | Safety protection transfusion needle |
| CN105268045B (en) * | 2014-05-26 | 2022-10-04 | 上海康德莱企业发展集团股份有限公司 | Pre-filled catheter flusher |
| KR101491953B1 (en) * | 2014-07-21 | 2015-02-11 | 송재원 | Medicine injection niddle unit having stick injury and infection preventing fuction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245076A (en) * | 1998-08-14 | 2000-02-23 | 黄高樟 | High-safety needle staying on vein |
| EP1386633A1 (en) * | 2002-08-02 | 2004-02-04 | Sergio Restelli | Safety catheter |
| CN1515329A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Disposable safety needle cover device |
| US20040176730A1 (en) * | 2002-08-13 | 2004-09-09 | Wang Hsien Tsung | Disposable, safe butterfly needle sheath |
| CN2698371Y (en) * | 2004-03-03 | 2005-05-11 | 康德保生化科技股份有限公司 | Safety device for syringe needle |
-
2006
- 2006-06-19 CN CNA2006100277965A patent/CN101091812A/en active Pending
-
2007
- 2007-06-19 WO PCT/CN2007/001916 patent/WO2008000148A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245076A (en) * | 1998-08-14 | 2000-02-23 | 黄高樟 | High-safety needle staying on vein |
| EP1386633A1 (en) * | 2002-08-02 | 2004-02-04 | Sergio Restelli | Safety catheter |
| US20040176730A1 (en) * | 2002-08-13 | 2004-09-09 | Wang Hsien Tsung | Disposable, safe butterfly needle sheath |
| CN1515329A (en) * | 2003-01-08 | 2004-07-28 | 汪贤宗 | Disposable safety needle cover device |
| CN2698371Y (en) * | 2004-03-03 | 2005-05-11 | 康德保生化科技股份有限公司 | Safety device for syringe needle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016007442A1 (en) * | 2014-07-08 | 2016-01-14 | Becton, Dickinson And Company | Peripheral intravenous catheter with winged grip |
| US10434286B2 (en) | 2014-07-08 | 2019-10-08 | Becton, Dickinson And Company | Peripheral intravenous catheter with winged grip |
| US10639454B2 (en) | 2016-03-28 | 2020-05-05 | Becton, Dickinson And Company | Ergonomic IV systems and methods |
| US11426558B2 (en) | 2016-03-28 | 2022-08-30 | Beeton, Dickinson and Company | Ergonomic IV systems and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101091812A (en) | 2007-12-26 |
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