JP4794463B2 - 正圧排出用フラッシュ注射器 - Google Patents
正圧排出用フラッシュ注射器 Download PDFInfo
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- JP4794463B2 JP4794463B2 JP2006549315A JP2006549315A JP4794463B2 JP 4794463 B2 JP4794463 B2 JP 4794463B2 JP 2006549315 A JP2006549315 A JP 2006549315A JP 2006549315 A JP2006549315 A JP 2006549315A JP 4794463 B2 JP4794463 B2 JP 4794463B2
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- JP
- Japan
- Prior art keywords
- plunger
- stopper
- fluid
- barrel
- syringe assembly
- 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.)
- Expired - Lifetime
Links
- 238000011010 flushing procedure Methods 0.000 title description 21
- 239000012530 fluid Substances 0.000 claims description 64
- 238000004891 communication Methods 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 4
- 238000001990 intravenous administration Methods 0.000 claims 2
- 239000000243 solution Substances 0.000 description 39
- 210000003462 vein Anatomy 0.000 description 13
- 238000001802 infusion Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000008280 blood Substances 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 229920000669 heparin Polymers 0.000 description 6
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 239000012815 thermoplastic material Substances 0.000 description 4
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 229960002897 heparin Drugs 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000012371 Aseptic Filling Methods 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000550081 Renata Species 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001647 drug administration Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- ZFGMDIBRIDKWMY-PASTXAENSA-N heparin Chemical group CC(O)=N[C@@H]1[C@@H](O)[C@H](O)[C@@H](COS(O)(=O)=O)O[C@@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](O[C@H]2[C@@H]([C@@H](OS(O)(=O)=O)[C@@H](O[C@@H]3[C@@H](OC(O)[C@H](OS(O)(=O)=O)[C@H]3O)C(O)=O)O[C@@H]2O)CS(O)(=O)=O)[C@H](O)[C@H]1O ZFGMDIBRIDKWMY-PASTXAENSA-N 0.000 description 1
- 229960001008 heparin sodium Drugs 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 235000016236 parenteral nutrition Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229940071643 prefilled syringe Drugs 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 210000002073 venous valve Anatomy 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
- A61M5/315—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
- A61M5/31515—Connection of piston with 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M2005/1401—Functional features
- A61M2005/1403—Flushing or purging
-
- 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
- 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
- A61M2005/31516—Piston or piston-rod constructions, e.g. connection of piston with piston-rod reducing dead-space in the syringe barrel after delivery
-
- 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
- A61M2005/31523—Piston or piston-rod constructions, e.g. connection of piston with piston-rod for reducing reflux
-
- 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
Landscapes
- 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)
Description
Claims (10)
- 流体を収容するためのチャンバーを形成する内面を有する円筒状の側壁、開口基端部及び自身を通り前記チャンバーと流体連通を行う通路を有し末端方向に延在する細長い先端を有する末端壁部を含む末端部を含むバレルと、
基端部及び末端部を有する細長い本体部と、前記バレルに対する弾性ストッパーの移動によって流体を前記チャンバーの中へ汲み上げたり前記チャンバーの外に押し出したりするために前記バレルの内面と流体密封された係合状態で摺動可能に位置される前記弾性ストッパーを含み、前記細長い本体部が前記バレルの前記開口基端部から外側に延在するプランジャーと、
前記チャンバーから流体が輸液されて前記弾性ストッパーが前記末端壁部に接触した後における、通路内での流体の末端方向への移動のための手段と、
を備え、
前記流体の末端方向への移動のための手段は、末端面を有する末端部及び内面を形成するキャビティを有する基端部を含む前記弾性ストッパーであり、
前記プランジャーに末端方向へ向けられた力が作用した際に、前記プランジャーの前記末端部における前記末端チップが前記弾性ストッパーの前記内面に接触し、前記通路内で流体を末端方向に移動させるべく前記通路内へ前記弾性ストッパーの前記末端部の一部を押し込むように形成されることを特徴とする静脈用フラッシュ注射器組立体。 - 前記流体の移動のための手段は、第一の戻り止め位置及び第二の戻り止め位置を定める補足的な戻り止め構造によって前記弾性ストッパーに接続された前記プランジャーの前記末端部と、を備え、前記戻り止め構造は、流体がチャンバーから輸液された後に前記プランジャーに作用されて末端方向へ向けられた力が、前記弾性ストッパーに関して第一の戻り止め位置から第二の戻り止め位置までプランジャーを末端方向に移動させることを引き起こすことを特徴とする請求項1に記載の静脈用フラッシュ注射器組立体。
- 前記弾性ストッパーは円錐状に形成された末端面を含み、前記末端壁部にある前記バレルの前記内面が円錐状に形成され、前記末端壁部にある前記バレルの前記内面の全含有角度は、前記弾性ストッパーの末端面の全含有角度よりも大きいことを特徴とする請求項1に記載の注射器組立体。
- 前記プランジャーと前記弾性ストッパーとが第二の戻り止め位置で係合されたときに、通路に嵌まるべく形成された前記弾性ストッパーの前記末端部における末端方向に向けられた突起をさらに含むことを特徴とする請求項2に記載の注射器組立体。
- 前記弾性ストッパーの前記内面は、基端方向に向けられた突出部を有し、前記プランジャー及び前記弾性ストッパーが前記第二の戻り止め位置に係合されたときに、前記プランジャーの前記末端チップに接触するように形成されていることを特徴とする請求項2に記載の注射器組立体。
- 前記弾性ストッパーの前記内面が、第一の不連続部分と前記第一の不連続部分よりも末端方向に位置する第二の不連続部分を含み、前記プランジャーの前記末端部は、前記弾性ストッパー及び前記プランジャーが前記第一の戻り止め位置にあるとき、前記プランジャーの不連続部分が第一の不連続部分に係合し、前記弾性ストッパーと前記プランジャーとが第二の戻り止め位置にあるとき、前記プランジャーの不連続部分が前記第二の不連続部分に係合するように位置される、不連続部分を有することを特徴とする請求項2に記載の注射器組立体。
- 前記プランジャーの前記末端部における前記不連続部分は、隆起した突起を含むことを特徴とする請求項6に記載の注射器組立体。
- 前記隆起した突起は環状輪であることを特徴とする請求項7に記載の注射器組立体。
- 前記第一の不連続部分は、前記プランジャーの前記末端部における前記隆起した突起を収容するための凹所であることを特徴とする請求項8に記載の注射器組立体。
- 前記凹所は環状に形成されていることを特徴とする請求項9に記載の注射器組立体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/754,870 | 2004-01-09 | ||
US10/754,870 US20050154353A1 (en) | 2004-01-09 | 2004-01-09 | Positive displacement flush syringe |
PCT/US2004/043203 WO2005070484A1 (en) | 2004-01-09 | 2004-12-21 | Positive displacement flush syringe |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2007517589A JP2007517589A (ja) | 2007-07-05 |
JP2007517589A5 JP2007517589A5 (ja) | 2008-01-31 |
JP4794463B2 true JP4794463B2 (ja) | 2011-10-19 |
Family
ID=34739460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006549315A Expired - Lifetime JP4794463B2 (ja) | 2004-01-09 | 2004-12-21 | 正圧排出用フラッシュ注射器 |
Country Status (6)
Country | Link |
---|---|
US (3) | US20050154353A1 (ja) |
EP (2) | EP1703930B1 (ja) |
JP (1) | JP4794463B2 (ja) |
BR (1) | BRPI0418352B8 (ja) |
ES (2) | ES2671333T3 (ja) |
WO (1) | WO2005070484A1 (ja) |
Families Citing this family (62)
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- 2004-12-21 BR BRPI0418352A patent/BRPI0418352B8/pt active IP Right Grant
- 2004-12-21 EP EP04815300.1A patent/EP1703930B1/en not_active Expired - Lifetime
- 2004-12-21 EP EP18158817.9A patent/EP3345640B1/en not_active Expired - Lifetime
- 2004-12-21 ES ES04815300.1T patent/ES2671333T3/es not_active Expired - Lifetime
- 2004-12-21 ES ES18158817T patent/ES2809398T3/es not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
US8574202B2 (en) | 2013-11-05 |
US20080021414A1 (en) | 2008-01-24 |
WO2005070484A1 (en) | 2005-08-04 |
JP2007517589A (ja) | 2007-07-05 |
ES2671333T3 (es) | 2018-06-06 |
EP3345640A2 (en) | 2018-07-11 |
EP3345640B1 (en) | 2020-06-10 |
BRPI0418352A (pt) | 2007-05-08 |
EP1703930B1 (en) | 2018-02-28 |
US20080262439A1 (en) | 2008-10-23 |
EP1703930A1 (en) | 2006-09-27 |
ES2809398T3 (es) | 2021-03-04 |
US20050154353A1 (en) | 2005-07-14 |
EP3345640A3 (en) | 2018-07-25 |
BRPI0418352B1 (pt) | 2015-11-10 |
BRPI0418352B8 (pt) | 2021-06-22 |
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