GB622848A - Improvements in hypodermic syringes - Google Patents

Improvements in hypodermic syringes

Info

Publication number
GB622848A
GB622848A GB155347A GB155347A GB622848A GB 622848 A GB622848 A GB 622848A GB 155347 A GB155347 A GB 155347A GB 155347 A GB155347 A GB 155347A GB 622848 A GB622848 A GB 622848A
Authority
GB
United Kingdom
Prior art keywords
plunger
hypodermic
pawl
rack
frame
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
Application number
GB155347A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB155347A priority Critical patent/GB622848A/en
Publication of GB622848A publication Critical patent/GB622848A/en
Expired legal-status Critical Current

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
    • 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
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/3159—Dose expelling manners
    • A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
    • A61M5/31595—Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking
    • 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
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
    • A61M5/31581—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod performed by rotationally moving or pivoting actuator operated by user, e.g. an injection lever or handle
    • 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
    • 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
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • A61M5/3156—Mechanically operated dose setting member using volume steps only adjustable in discrete intervals, i.e. individually distinct intervals

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)

Abstract

622,848. Hypodermic &c. syringes. McLINTOCK, D. M. Jan. 16, 1947, No. 1553. [Class 81 (ii)] A hypodermic &c. syringe is provided with a pawl and ratchet mechanism 29, 21 whereby the plunger 11 is lowered by equal steps upon each actuation of a handlever 24 to deliver equal doses of fluid. The pawl 29 is carried by the plunger 11 and co-operates with a rack 21 on a spring-raised rod 19 slidable within the plunger, reverse movement being prevented by a detent 30 engaging a rack 32 on a frame 15 forming an extension of the usual cylinder. Downward movement of the lever 24 is limited by a stop on the frame 15 or, if adjustability is required, by one of a number of projections on a rotary turret member 38 (not shown).
GB155347A 1947-01-16 1947-01-16 Improvements in hypodermic syringes Expired GB622848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB155347A GB622848A (en) 1947-01-16 1947-01-16 Improvements in hypodermic syringes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB155347A GB622848A (en) 1947-01-16 1947-01-16 Improvements in hypodermic syringes

Publications (1)

Publication Number Publication Date
GB622848A true GB622848A (en) 1949-05-09

Family

ID=9723970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB155347A Expired GB622848A (en) 1947-01-16 1947-01-16 Improvements in hypodermic syringes

Country Status (1)

Country Link
GB (1) GB622848A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5496293A (en) * 1993-04-06 1996-03-05 Medimpex Ets. Advancing mechanism for an injection device
WO2003086512A1 (en) * 2002-04-17 2003-10-23 Tecpharma Licensing Ag Device for administering an injectable product
EP3058971A1 (en) 2015-02-19 2016-08-24 Yutal Limited Syringes
US9907913B2 (en) 2009-07-10 2018-03-06 Becton, Dickinson And Company Flush syringe assembly with controlled pulsatile flushing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5496293A (en) * 1993-04-06 1996-03-05 Medimpex Ets. Advancing mechanism for an injection device
WO2003086512A1 (en) * 2002-04-17 2003-10-23 Tecpharma Licensing Ag Device for administering an injectable product
US9907913B2 (en) 2009-07-10 2018-03-06 Becton, Dickinson And Company Flush syringe assembly with controlled pulsatile flushing
US10463798B2 (en) 2009-07-10 2019-11-05 Becton, Dickinson And Company Flush syringe with controlled pulsatile flushing
US11197961B2 (en) 2009-07-10 2021-12-14 Becton, Dickinson And Company Flush syringe assembly with controlled pulsatile flushing
EP3058971A1 (en) 2015-02-19 2016-08-24 Yutal Limited Syringes

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