WO2020000131A1 - 一种营养注射器盖帽 - Google Patents

一种营养注射器盖帽 Download PDF

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Publication number
WO2020000131A1
WO2020000131A1 PCT/CN2018/092612 CN2018092612W WO2020000131A1 WO 2020000131 A1 WO2020000131 A1 WO 2020000131A1 CN 2018092612 W CN2018092612 W CN 2018092612W WO 2020000131 A1 WO2020000131 A1 WO 2020000131A1
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Prior art keywords
syringe
annular
groove
thread
inner core
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PCT/CN2018/092612
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English (en)
French (fr)
Inventor
陆军
赵丽杰
张传雷
倪琳
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江苏采纳医疗科技有限公司
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Application filed by 江苏采纳医疗科技有限公司 filed Critical 江苏采纳医疗科技有限公司
Priority to PCT/CN2018/092612 priority Critical patent/WO2020000131A1/zh
Publication of WO2020000131A1 publication Critical patent/WO2020000131A1/zh

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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
    • A61M5/178—Syringes
    • A61M5/31—Details

Definitions

  • the invention relates to a syringe cap.
  • parenteral (intravenous) nutrition occupies a key position in the rescue of critically ill patients, but our implementation of parenteral nutrition has been very unregulated because of various conditions, and many large hospitals and key departments of large hospitals cannot do so.
  • the parenteral (intravenous) nutrition now generally promotes "all in one" (all mixed together), that is, all nutrients (mainly fat milk, amino acids, glucose) are first melted together and then lost. Inject into patient.
  • the purpose of the present invention is to overcome the defects existing in the prior art and provide a syringe cap, which is convenient for the syringe to be pressed down during installation, and it is easy to eject the teeth on the double thread. Opening double-threaded teeth makes it easier for medical workers to insert nutrition syringes and reduce fatigue.
  • the technical solution of the present invention is to design a syringe cap.
  • the nutrition syringe cap is assembled by a shell and an inner core.
  • the inner core includes a blind hole-shaped syringe plug, and a ring wall is integrated outside the syringe plug.
  • the syringe plug is arranged coaxially with the ring wall.
  • the ring wall is provided with a cutting groove on the wall surface.
  • the inner surface of the ring wall is provided with a thread.
  • the cutting groove is provided on one side of the thread.
  • the upper end of the ring wall and the syringe plug are formed.
  • the outer surface of the lower end of the annular wall is provided with an annular groove, the annular surface of the annular groove is provided with external engaging teeth, and the bottom of the annular wall is provided with a large and small conical surface;
  • the outer shell is a circular shell with open ends.
  • Body-shaped, stepped collars fitted with annular grooves at one end opening, the shell and the inner core are assembled by the annular grooves and stepped collars, and the stepped collars are provided with inner parts adapted to external meshing teeth
  • the teeth are meshed, and the outer surface of the housing is in the shape of a ball and a truncated cone.
  • the bottom end of the inner core plane and the side of the outer surface of the outer shell basically guarantee that when it is randomly dropped on the table, the automatic opening will face upward.
  • the thread is added with a profiled cutting slot, which has two forms: oblique window and vertical window. It is convenient for the syringe to press down during installation, and it is easy to eject the teeth on the double thread. Due to the existence of the cutting groove, the teeth of the thread are squeezed outward. It is more convenient for medical workers to insert nutrition syringes and reduce their fatigue.
  • the cutting groove is a spiral groove, which is arranged on the upper side and / or the lower side of the tooth; the direction of the cutting groove is along the spiral direction of the thread.
  • the cutting groove is a U-shaped groove, which is arranged on the left and / or right side of the tooth.
  • the thread is a double thread; a plurality of grooves are provided on the outer surface of the shell, and the grooves are uniformly arranged along the outer surface of the shell, and the groove direction is the same as the axial direction of the ring wall.
  • the bottom end of the inner core plane and the side surface of the outer surface of the outer shell basically ensure that the automatic opening faces upward when it is randomly dropped on the table.
  • the thread is added with a profiled cutting slot, which has two forms: oblique window and vertical window. It is convenient for the syringe to press down during installation, and it is easy to eject the teeth on the double thread. Due to the existence of the cutting groove, the teeth of the thread are squeezed outward. It is more convenient for medical workers to insert nutrition syringes and reduce their fatigue.
  • the shell and the inner core are plug-in connected, and a tooth shape is provided at the connection, which can prevent rotation between the shell and the inner core after connection.
  • FIG. 1 is a schematic diagram of a first embodiment of a syringe cap according to the present invention
  • Figure 2 is a sectional view of Figure 1;
  • FIG. 3 is a schematic view of the present invention after being connected to a syringe barrel
  • Figure 4 is an enlarged schematic view of the syringe barrel of Figure 3;
  • FIG. 5 is an exploded view of FIG. 1;
  • FIG. 6 is an exploded view of FIG. 2;
  • FIG. 7 is an exploded view of Embodiment 2 of the present invention.
  • FIG. 8 is a cross-sectional view from another perspective of FIG. 7.
  • the present invention is a syringe cap.
  • the nutrition syringe cap is assembled by a shell 1 and an inner core 2.
  • the inner core 2 includes a blind hole shaped syringe plug 7, and the syringe plug 7 is integrated outside.
  • An annular wall 10 is provided.
  • the syringe plug 7 is coaxially arranged with the annular wall 10.
  • the annular wall 10 is provided with a cutting groove 11 on the wall surface.
  • the inner surface of the annular wall 10 is provided with an external thread 5 adapted to the top end of the syringe barrel 4.
  • the internal thread 6 (the syringe structure includes a syringe 4, a mandrel 17 provided in the syringe 4 and a rubber plug 18 at the top of the mandrel), a cutting groove 11 is provided on one side of the tooth of the internal thread 6, and the upper end of the ring wall 10
  • An annular cavity 3 is formed between the cylinder plug 7 and the lower end of the annular wall 10.
  • An annular groove 13 is provided on the outer surface.
  • the annular groove 13 is provided with external engaging teeth 14 on the annular surface.
  • the lower cone surface 12; the outer shell 1 is in the shape of a circular shell with two ends open, and one end of the opening is provided with a stepped collar 8 adapted to the annular groove.
  • the outer shell 1 and the inner core 2 pass through the annular groove 13 and the stepped shape.
  • the clamping ring 8 is assembled.
  • the stepped clamping ring 8 is provided with an internal meshing tooth 15 adapted to the external meshing tooth 14.
  • the outer surface (ie, the side surface 9) of the casing 1 is a ball-shaped and / or a frustum-shaped.
  • the cutting groove 11 is a spiral groove, which is arranged on the upper side and / or the lower side of the teeth; the direction of the cutting groove 11 is along the spiral direction of the thread.
  • the threads are double threads, specifically double-headed right-handed threads, with a pitch of 2.5 mm and a lead of 5.0 mm; the outer surface of the casing 1 is provided with a plurality of grooves 16, and the grooves 16 are evenly arranged along the outer surface of the casing 1 and The direction of the groove is the same as the axial direction of the ring wall.
  • the cutting groove 11 is a U-shaped groove, which is provided on the left and / or right side of the teeth.

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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

一种营养注射器盖帽，营养注射器盖帽由外壳(1)和内芯(2)组装而成，内芯(2)包括针筒堵头(7)，针筒堵头(7)外一体设有环壁(10)，环壁(10)其壁面上设有切割槽(11)，螺纹增加仿形切割槽(11)，有斜开窗和垂直开窗两种形式，环壁(10)内表面设有螺纹，环壁(10)上设有环形槽(13)，环形槽(13)上设有外啮合齿(14)；外壳(1)呈两端开口的圆形壳体状，一端开口处设有与环形槽(13)适配的阶梯状卡圈(8)，阶梯状卡圈(8)上设有与外啮合齿(14)适配的内啮合齿(15)，外壳(1)的外表面为球台形和/或锥台形。螺纹外开窗便于在安装时注射器下压、顶开双螺纹的牙，减少医护工作者的疲劳程度；且巧妙利用重心向下的原理，无论注射器盖帽以那个角度抛落在桌面，其内芯均朝上，便于护理人员便捷插入注射器，减少其重新朝上定位的疲劳程度。

Description

一种营养注射器盖帽 技术领域
本发明涉及注射器盖帽。
背景技术
肠外(静脉)营养在危重症病人的抢救中占有关键的地位，但是一直因为各方面条件限制我们肠外营养的实施很不规范，许多大的医院、大医院的重点科室都做不到规范的静脉营养实施，现在肠外(静脉)营养普遍提倡“all in one”(所有均混合在一起)即是将所有的营养物质(主要是脂肪乳、氨基酸、葡萄糖)先融在一起然后再输注到病人体内。
医护工作者在准备待用营养注射器时会将一批需要组装的注射器针筒及盖帽放至组装台，当医护工作人员将一批盖帽放至桌面，盖帽随机跌落到桌面上时，有的盖帽的开口朝上、有的盖帽的开口朝下，开口朝上的盖帽不便于医护工作者插入营养注射器，当需要组装很多注射器时医护工作人员容易疲劳，工作强度大。
发明内容
本发明的目的在于，克服现有技术中存在的缺陷，提供注射器盖帽，便于在安装时注射器下压，很容易顶开双螺纹上的牙，螺纹外开窗便于在安装时注射器下压、顶开双螺纹的牙，便于医护工作者插入营养注射器，减少疲劳程度。
为实现上述目的，本发明的技术方案是设计注射器盖帽，营养注射器盖帽由外壳和内芯组装而成，内芯包括盲孔状的针筒堵头，针筒堵头外一体设有环壁，针筒堵头与环壁同轴设置，环壁其壁面上设有切割槽，环壁内表面设有螺纹，切割槽设置在螺纹牙的一侧，环壁上端与针筒堵头之间构成环形空腔，环壁下端其外表面上设有环形槽， 环形槽的环形面上设有外啮合齿，环壁底部设有上大下小的锥面；外壳呈两端开口的圆形壳体状，一端开口处设有与环形槽适配的阶梯状卡圈，外壳与内芯通过环形槽及阶梯状卡圈组装而成，阶梯状卡圈上设有与外啮合齿适配的内啮合齿，外壳的外表面为球台形和/或锥台形。内芯平面的底端及外壳曲面的侧面就基本保证了随机跌落到桌面上时，自动开口朝上。螺纹增加仿形切割槽，有斜开窗和垂直开窗两种形式，便于在安装时注射器下压，很容易顶开双螺纹上的牙，由于切割槽的存在，螺纹的牙向外被挤出，更加便于医护工作者插入营养注射器，减少其疲劳程度。另外，巧妙利用重心向下的原理，无论注射器盖帽以那个角度抛落在桌面，其内芯均朝上，便于护理人员便捷插入注射器，减少其重新朝上定位的疲劳程度。
进一步的技术方案是，切割槽为螺旋槽，其设置在牙的上侧和/或下侧；切割槽的方向为沿螺纹的螺旋线方向。
进一步的技术方案是，切割槽为U形槽，其设置在牙的左侧和/或右侧。
进一步的技术方案是，螺纹为双螺纹；所述外壳的外表面开设若干个凹槽，凹槽沿外壳的外表面均匀设置且凹槽的方向与环壁的轴线方向相同。
本发明的优点和有益效果在于：内芯平面的底端及外壳曲面的侧面就基本保证了随机跌落到桌面上时，自动开口朝上。螺纹增加仿形切割槽，有斜开窗和垂直开窗两种形式，便于在安装时注射器下压，很容易顶开双螺纹上的牙，由于切割槽的存在，螺纹的牙向外被挤出，更加便于医护工作者插入营养注射器，减少其疲劳程度。外壳与内芯插接式连接，且在连接处设置齿形，能够避免连接后外壳与内芯之间的旋转。另外，巧妙利用重心向下的原理，无论注射器盖帽以那个角度抛落在桌面，其内芯均朝上，便于护理人员便捷插入注射器，减少其重新朝上定位的疲劳程度。
附图说明
图1是本发明注射器盖帽实施例一的示意图；
图2是图1的剖面图；
图3是本发明与注射器针筒连接后的示意图；
图4是图3中注射器针筒的放大示意图；
图5是图1的分解示意图；
图6是图2的分解示意图；
图7是本发明实施例二的分解示意图；
图8是图7另一视角的剖面图。
图中：1、外壳；2、内芯；3、环形空腔；4、注射器针筒；5、外螺纹；6、内螺纹；7、针筒堵头；8、卡圈；9、侧面；10、环壁；11、切割槽；12、锥面；13、环形槽；14、外啮合齿；15、内啮合齿；16、凹槽；17、芯杆；18、胶塞。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
实施例一：
如图1至图6所示，本发明是注射器盖帽，营养注射器盖帽由外壳1和内芯2组装而成，内芯2包括盲孔状的针筒堵头7，针筒堵头7外一体设有环壁10，针筒堵头7与环壁10同轴设置，环壁10其壁面上设有切割槽11，环壁10内表面设有与注射器针筒4顶端的外螺纹5适配的内螺纹6(注射器结构包括针筒4，设置在针筒4内的芯杆17，芯杆顶端设置胶塞18)，切割槽11设置在内螺纹6其牙的一侧，环壁10上端与针筒堵头7之间构成环形空腔3，环壁10下端其外表面上设有环形槽13，环形槽13的环形面上设有外啮合齿14，环壁10底部设有上大下小的锥面12；外壳1呈两端开口的圆形壳体状，一端开口处设有与环形槽适 配的阶梯状卡圈8，外壳1与内芯2通过环形槽13及阶梯状卡圈8组装而成，阶梯状卡圈8上设有与外啮合齿14适配的内啮合齿15，外壳1的外表面(即侧面9)为球台形和/或锥台形。切割槽11为螺旋槽，其设置在牙的上侧和/或下侧；切割槽11的方向为沿螺纹的螺旋线方向。螺纹为双螺纹，具体为双头右旋螺纹，螺距为2.5mm，导距为5.0mm；所述外壳1的外表面开设若干个凹槽16，凹槽16沿外壳1的外表面均匀设置且凹槽的方向与环壁的轴线方向相同。
实施例二：
与实施例一的不同在于，如图7、图8所示，切割槽11为U形槽，其设置在牙的左侧和/或右侧。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (4)

  1. 一种营养注射器盖帽，其特征在于，营养注射器盖帽由外壳和内芯组装而成，内芯包括盲孔状的针筒堵头，针筒堵头外一体设有环壁，针筒堵头与环壁同轴设置，环壁其壁面上设有切割槽，环壁内表面设有螺纹，切割槽设置在螺纹牙的一侧，环壁上端与针筒堵头之间构成环形空腔，环壁下端其外表面上设有环形槽，环形槽的环形面上设有外啮合齿，环壁底部设有上大下小的锥面；外壳呈两端开口的圆形壳体状，一端开口处设有与环形槽适配的阶梯状卡圈，外壳与内芯通过环形槽及阶梯状卡圈组装而成，阶梯状卡圈上设有与外啮合齿适配的内啮合齿，外壳的外表面为球台形和/或锥台形。
  2. 根据权利要求1所述的营养注射器盖帽，其特征在于，所述切割槽为螺旋槽，其设置在牙的上侧和/或下侧；切割槽的方向为沿螺纹的螺旋线方向。
  3. 根据权利要求1所述的营养注射器盖帽，其特征在于，所述切割槽为U形槽，其设置在牙的左侧和/或右侧。
  4. 根据权利要求2或3所述的营养注射器盖帽，其特征在于，所述螺纹为双螺纹；所述外壳的外表面开设若干个凹槽，凹槽沿外壳的外表面均匀设置且凹槽的方向与环壁的轴线方向相同。
PCT/CN2018/092612 2018-06-25 2018-06-25 一种营养注射器盖帽 WO2020000131A1 (zh)

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CN202128773U (zh) * 2011-06-24 2012-02-01 江苏省中医院 一种注射器乳头帽
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CN108815644A (zh) * 2018-06-25 2018-11-16 江苏采纳医疗科技有限公司 一种营养注射器盖帽
CN208114881U (zh) * 2017-06-26 2018-11-20 四川省人民医院 一种便于使用的一次性注射器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213456A (en) * 1978-01-07 1980-07-22 Bottger Paul E K Medical multi-purpose instrument
US6514229B1 (en) * 2000-06-06 2003-02-04 Formosa Medical Devices Inc. Safety syringe with a needle sleeve
CN1882368A (zh) * 2003-10-01 2006-12-20 贝克顿·迪金森公司 可萃取物低的热塑性注射器和针尖盖帽
CN202128773U (zh) * 2011-06-24 2012-02-01 江苏省中医院 一种注射器乳头帽
CN103203052A (zh) * 2013-04-03 2013-07-17 山东威高集团医用高分子制品股份有限公司 一种安全型预充式冲管注射器
CN103550004A (zh) * 2013-11-18 2014-02-05 大连三生科技发展有限公司 人工牙种植体、人工牙种植体系统及种植方法
CN207076005U (zh) * 2017-02-15 2018-03-09 山东永聚医药科技有限公司 拧固式带针预灌封注射器
CN208114881U (zh) * 2017-06-26 2018-11-20 四川省人民医院 一种便于使用的一次性注射器
CN108815644A (zh) * 2018-06-25 2018-11-16 江苏采纳医疗科技有限公司 一种营养注射器盖帽

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