CN116157169A - 活塞 - Google Patents

活塞 Download PDF

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Publication number
CN116157169A
CN116157169A CN202080103654.0A CN202080103654A CN116157169A CN 116157169 A CN116157169 A CN 116157169A CN 202080103654 A CN202080103654 A CN 202080103654A CN 116157169 A CN116157169 A CN 116157169A
Authority
CN
China
Prior art keywords
annular protrusion
piston
annular
syringe barrel
apex
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
Application number
CN202080103654.0A
Other languages
English (en)
Chinese (zh)
Inventor
须藤洋司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikyo Seiko Ltd
Original Assignee
Daikyo Seiko Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daikyo Seiko Ltd filed Critical Daikyo Seiko Ltd
Publication of CN116157169A publication Critical patent/CN116157169A/zh
Pending legal-status Critical Current

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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
    • A61M5/31513—Piston constructions to improve sealing or sliding

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)
  • Pistons, Piston Rings, And Cylinders (AREA)
CN202080103654.0A 2020-08-31 2020-08-31 活塞 Pending CN116157169A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/032958 WO2022044340A1 (ja) 2020-08-31 2020-08-31 ピストン

Publications (1)

Publication Number Publication Date
CN116157169A true CN116157169A (zh) 2023-05-23

Family

ID=80355002

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080103654.0A Pending CN116157169A (zh) 2020-08-31 2020-08-31 活塞

Country Status (9)

Country Link
US (1) US20230293820A1 (https=)
EP (1) EP4205784A4 (https=)
JP (2) JP7193887B2 (https=)
KR (1) KR20230058099A (https=)
CN (1) CN116157169A (https=)
AU (1) AU2020465340A1 (https=)
CA (1) CA3192018A1 (https=)
TW (1) TW202224714A (https=)
WO (1) WO2022044340A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102794309B1 (ko) * 2023-05-10 2025-04-15 제이더블유생명과학 주식회사 주사기
EP4609898A1 (en) * 2024-02-28 2025-09-03 Becton, Dickinson and Company Method of manufacturing a laminated stopper, polymer blends for same and stoppers made therefrom

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895773A (en) * 1956-10-22 1959-07-21 Robert K Mcconnaughey Variable diameter tensed ring piston
US6511459B1 (en) * 2000-09-29 2003-01-28 Mallinckrodt Inc. Syringe plunger having an improved sealing ability
US20050010175A1 (en) * 2003-02-27 2005-01-13 Beedon Daniel E. Piston assembly for syringe
JP2012205931A (ja) * 2012-07-26 2012-10-25 Terumo Corp シリンジ
US20160089499A1 (en) * 2013-06-06 2016-03-31 Terumo Kabushiki Kaisha Syringe and prefilled syringe
JP2016209307A (ja) * 2015-05-08 2016-12-15 住友ゴム工業株式会社 プレフィルドシリンジ用ガスケットおよびプレフィルドシリンジ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918427B2 (ja) 1979-10-09 1984-04-27 テルモ株式会社 シリンジ用ガスケツト
JP2006181027A (ja) 2004-12-27 2006-07-13 Daikyo Seiko Ltd 注射器用ピストン
WO2008151239A2 (en) * 2007-06-04 2008-12-11 Becton, Dickinson And Company Positive displacement stopper for a pre-filled syringe
WO2015150646A1 (fr) * 2014-04-02 2015-10-08 Aptar Stelmi Sas Ensemble de seringue anti-reflux

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895773A (en) * 1956-10-22 1959-07-21 Robert K Mcconnaughey Variable diameter tensed ring piston
US6511459B1 (en) * 2000-09-29 2003-01-28 Mallinckrodt Inc. Syringe plunger having an improved sealing ability
US20050010175A1 (en) * 2003-02-27 2005-01-13 Beedon Daniel E. Piston assembly for syringe
JP2012205931A (ja) * 2012-07-26 2012-10-25 Terumo Corp シリンジ
US20160089499A1 (en) * 2013-06-06 2016-03-31 Terumo Kabushiki Kaisha Syringe and prefilled syringe
JP2016209307A (ja) * 2015-05-08 2016-12-15 住友ゴム工業株式会社 プレフィルドシリンジ用ガスケットおよびプレフィルドシリンジ

Also Published As

Publication number Publication date
WO2022044340A1 (ja) 2022-03-03
JP7193887B2 (ja) 2022-12-21
EP4205784A1 (en) 2023-07-05
TW202224714A (zh) 2022-07-01
EP4205784A4 (en) 2023-10-04
CA3192018A1 (en) 2022-03-03
JPWO2022044340A1 (https=) 2022-03-03
AU2020465340A1 (en) 2023-05-04
US20230293820A1 (en) 2023-09-21
JP2022062227A (ja) 2022-04-19
KR20230058099A (ko) 2023-05-02
AU2020465340A9 (en) 2024-06-06

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