JP2019217105A - 注入器 - Google Patents
注入器 Download PDFInfo
- Publication number
- JP2019217105A JP2019217105A JP2018118257A JP2018118257A JP2019217105A JP 2019217105 A JP2019217105 A JP 2019217105A JP 2018118257 A JP2018118257 A JP 2018118257A JP 2018118257 A JP2018118257 A JP 2018118257A JP 2019217105 A JP2019217105 A JP 2019217105A
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- plunger
- movable body
- injector
- outer diameter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims description 52
- 239000012530 fluid Substances 0.000 abstract description 23
- 210000000078 claw Anatomy 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
- A61M5/3135—Syringe barrels characterised by constructional features of the proximal end
-
- 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
- A61M5/3129—Syringe barrels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M5/31513—Piston constructions to improve sealing or sliding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3112—Incorporating self-aspirating means, e.g. to provide flashback
-
- 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
- A61M5/3129—Syringe barrels
- A61M2005/3131—Syringe barrels specially adapted for improving sealing or sliding
-
- 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
- A61M5/3129—Syringe barrels
- A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
- A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31501—Means for blocking or restricting the movement of the rod or piston
- A61M5/31505—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit
- A61M2005/31506—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit formed as a single piece, e.g. moulded
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31501—Means for blocking or restricting the movement of the rod or piston
- A61M2005/31508—Means for blocking or restricting the movement of the rod or piston provided on the piston-rod
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M2005/31521—Pistons with a forward extending skirt at their front end
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fuel-Injection Apparatus (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
円筒状のバレルと、
前記バレル内に収容される可動体と、
前記可動体に対して離間可能に接触するプランジャと、を有し、
前記可動体が、
前記バレルの内径に比べて小さい外径を備える本体、
前記本体に設けられ、前記バレルの内周面に対して外周端が密接する円盤状のシール体、および
前記本体からバレルの内周面に向かって突出する少なくとも1つの突出部を備え、
前記可動体の中心軸から前記少なくとも1つの突出部の先端までの距離が、前記シール体の外径の半分に比べて小さい、注入器が提供される。
図1は本発明の実施の形態1に係る注入器の外観図であって、図2は注入器の部分断面図である。
本実施の形態2は、プランジャに設けられたストッパの形態が異なる点を除いて、上述の実施の形態1と実質的に同一である。したがって、異なる点を中心に、本実施の形態2について説明する。また、上述の実施の形態1における構成要素と実質的に同一の本実施の形態2における構成要素には、同一の符号が付されている。
上述の実施の形態1の場合、プランジャのバレルからの抜け落ちを抑制するストッパは、プランジャに設けられている。これと異なり、本実施の形態3の場合、ストッパはバレルに設けられている。したがって、この異なるストッパを中心に、本実施の形態3について説明する。また、上述の実施の形態1における構成要素と実質的に同一の本実施の形態3における構成要素には、同一の符号が付されている。
12 バレル
12e 内周面
14 可動体
14a 本体
14b シール体
14c 少なくとも1つの突出部(フランジ)
16 プランジャ
Claims (6)
- 円筒状のバレルと、
前記バレル内に収容される可動体と、
前記可動体に対して離間可能に接触するプランジャと、を有し、
前記可動体が、
前記バレルの内径に比べて小さい外径を備える本体、
前記本体に設けられ、前記バレルの内周面に対して外周端が密接する円盤状のシール体、および
前記本体からバレルの内周面に向かって突出する少なくとも1つの突出部を備え、
前記可動体の中心軸から前記少なくとも1つの突出部の先端までの距離が、前記シール体の外径の半分に比べて小さい、注入器。
- 前記少なくとも1つの突出部が、フランジであって、
前記フランジの外径が前記シール体の外径に比べて小さい、請求項1に記載の注入器。
- 前記フランジの外径が、前記バレルの内径に比べて小さい、請求項2に記載の注入器。
- 前記シール体と前記フランジとの間の距離が、前記シール体の外径に比べて大きい、請求項2または3に記載の注入器。
- 前記プランジャが、その前端に平坦面状の接触面を備え、
前記可動体が、前記プランジャの接触面に接触する平坦面状の後端面を備える、請求項1から4のいずれか一項に記載の注入器。
- 前記プランジャが、前記接触面から突出するガイドピンを備え、
前記可動体が、前記後端面に、前記ガイドピンを進退可能に収容するガイド穴を備える、請求項5に記載の注入器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018118257A JP2019217105A (ja) | 2018-06-21 | 2018-06-21 | 注入器 |
EP19181133.0A EP3586895A1 (en) | 2018-06-21 | 2019-06-19 | Injector |
US16/447,227 US11679202B2 (en) | 2018-06-21 | 2019-06-20 | Injector capable of suppressing subsequent dripping of fluid |
CN201910536167.2A CN110630489B (zh) | 2018-06-21 | 2019-06-20 | 注入器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018118257A JP2019217105A (ja) | 2018-06-21 | 2018-06-21 | 注入器 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2019217105A true JP2019217105A (ja) | 2019-12-26 |
Family
ID=66998281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018118257A Pending JP2019217105A (ja) | 2018-06-21 | 2018-06-21 | 注入器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11679202B2 (ja) |
EP (1) | EP3586895A1 (ja) |
JP (1) | JP2019217105A (ja) |
CN (1) | CN110630489B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115962995A (zh) * | 2022-12-26 | 2023-04-14 | 中国科学院基础医学与肿瘤研究所(筹) | 一种全自动微生物染色制片装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015160636A (ja) * | 2014-02-27 | 2015-09-07 | 株式会社トクヤマデンタル | 注出器 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3809082A (en) * | 1971-12-30 | 1974-05-07 | Ampoules Inc | Plunger tack |
CH620126A5 (ja) | 1978-03-10 | 1980-11-14 | Tulcea Sa | |
JPS5616083A (en) | 1979-07-19 | 1981-02-16 | Kushida Fumio | Crucible |
JPS6222634A (ja) | 1985-07-23 | 1987-01-30 | 松下電器産業株式会社 | 超音波探触子 |
WO1989006146A1 (en) | 1987-12-30 | 1989-07-13 | Jacques Verlier | Non-reusable syringe |
MY104360A (en) | 1987-12-30 | 1994-03-31 | Verlier Jacques | Non-reusable syringe |
DE4332308C1 (de) | 1993-09-23 | 1994-09-29 | Heraeus Kulzer Gmbh | Spritze zum dosierten Abgeben von viskosen Werkstoffen, insbesondere von dentalen Werkstoffen |
US5875976A (en) | 1996-12-24 | 1999-03-02 | Medi-Ject Corporation | Locking mechanism for nozzle assembly |
US6224577B1 (en) * | 1998-03-02 | 2001-05-01 | Medrad, Inc. | Syringes and plungers for use therein |
JP4434342B2 (ja) | 1998-09-28 | 2010-03-17 | 昭和薬品化工株式会社 | カートリッジ式歯科用注射器 |
JP4133071B2 (ja) * | 2001-08-20 | 2008-08-13 | 大成化工株式会社 | 後垂れ防止注入器、並びに、該注入器用プランジャ及びシール体 |
ATE475442T1 (de) * | 2004-12-21 | 2010-08-15 | Becton Dickinson Co | Spritzenanordnng mit deaktivierungsmechanismus |
JP4708415B2 (ja) * | 2005-02-15 | 2011-06-22 | 株式会社トップ | シリンジ |
US8740856B2 (en) * | 2007-06-04 | 2014-06-03 | Becton, Dickinson And Company | Stoppers used in pre-filled syringes |
US8574201B2 (en) | 2009-12-22 | 2013-11-05 | Medtronic Minimed, Inc. | Syringe piston with check valve seal |
DE102010015417A1 (de) * | 2010-04-19 | 2011-10-20 | Robert Bosch Gmbh | Kolben für eine Radialkolbenmaschine |
CN109289104B (zh) * | 2011-03-28 | 2021-11-09 | 贝克顿·迪金森公司 | 塑料塞子 |
ES2948322T3 (es) | 2012-06-01 | 2023-09-08 | Novartis Ag | Jeringa |
JP6199604B2 (ja) * | 2013-05-15 | 2017-09-20 | 住友ゴム工業株式会社 | 医療用ガスケット |
DE102017125703A1 (de) * | 2016-11-04 | 2018-05-09 | Datwyler Pharma Packaging International Nv | Im Kunststoff-Spritzverfahren hergestellter Kolben für eine medizinische Spritze und eine medizinische Spritze |
-
2018
- 2018-06-21 JP JP2018118257A patent/JP2019217105A/ja active Pending
-
2019
- 2019-06-19 EP EP19181133.0A patent/EP3586895A1/en active Pending
- 2019-06-20 CN CN201910536167.2A patent/CN110630489B/zh active Active
- 2019-06-20 US US16/447,227 patent/US11679202B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015160636A (ja) * | 2014-02-27 | 2015-09-07 | 株式会社トクヤマデンタル | 注出器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115962995A (zh) * | 2022-12-26 | 2023-04-14 | 中国科学院基础医学与肿瘤研究所(筹) | 一种全自动微生物染色制片装置 |
CN115962995B (zh) * | 2022-12-26 | 2023-07-04 | 中国科学院基础医学与肿瘤研究所(筹) | 一种全自动微生物染色制片装置 |
Also Published As
Publication number | Publication date |
---|---|
CN110630489A (zh) | 2019-12-31 |
CN110630489B (zh) | 2023-03-21 |
US20190388620A1 (en) | 2019-12-26 |
EP3586895A1 (en) | 2020-01-01 |
US11679202B2 (en) | 2023-06-20 |
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