GB580185A - Improvements in or relating to hypodermic syringes - Google Patents

Improvements in or relating to hypodermic syringes

Info

Publication number
GB580185A
GB580185A GB1080544A GB1080544A GB580185A GB 580185 A GB580185 A GB 580185A GB 1080544 A GB1080544 A GB 1080544A GB 1080544 A GB1080544 A GB 1080544A GB 580185 A GB580185 A GB 580185A
Authority
GB
United Kingdom
Prior art keywords
plunger
metal
fluid
cylinder
closed
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
GB1080544A
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.)
NORMAN PHETHEAN
Original Assignee
NORMAN PHETHEAN
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 NORMAN PHETHEAN filed Critical NORMAN PHETHEAN
Priority to GB1080544A priority Critical patent/GB580185A/en
Publication of GB580185A publication Critical patent/GB580185A/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
    • 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
    • A61M2005/3151—Means for blocking or restricting the movement of the rod or piston by friction
    • 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

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)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

580,185. Surgical syringes. PHETHEAN, N., and BALLAMY, L. M. June 5, 1944, No. 10805. [Class 81 (ii)] A hypodermic syringe comprises a glass barrel 10; Fig. 1, having a metal nozzle cap 12 and a metal reinforcing ring 15, a metal plunger 18 making a fluid-tight fit with the cylinder and of such size that when fully' advanced the cylindrical portion extends for substantially the whole length of the cylinder, and a braking spring 17 bearing against the plunger. The plunger may be formed from a hollow rod 25, Fig, 3, closed by a plug 29, or from a metal tube 32, Fig. 4, closed by two plugs 29 and 33. A groove 21 may be provided on the plunger to engage non-positively with the spring 17 and from this groove upwards the diameter of the plunger is slightly reduced. A series of grooves 34 may serve to improve the fluid-tight fit. The light alloy known under the Registered Trade Mark "Birmabright" may be used in the construction of the syringe. Specification 551,545 and U.S.A. Specification 1,343,787 are referred to.
GB1080544A 1944-06-05 1944-06-05 Improvements in or relating to hypodermic syringes Expired GB580185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1080544A GB580185A (en) 1944-06-05 1944-06-05 Improvements in or relating to hypodermic syringes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1080544A GB580185A (en) 1944-06-05 1944-06-05 Improvements in or relating to hypodermic syringes

Publications (1)

Publication Number Publication Date
GB580185A true GB580185A (en) 1946-08-29

Family

ID=9974601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1080544A Expired GB580185A (en) 1944-06-05 1944-06-05 Improvements in or relating to hypodermic syringes

Country Status (1)

Country Link
GB (1) GB580185A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574964A (en) * 1949-06-24 1951-11-13 Eisenstark Julius Syringe
US2856923A (en) * 1954-10-22 1958-10-21 Baum Syringe
WO1989000057A1 (en) * 1987-07-02 1989-01-12 Robert John Charles Foster Single fill and use syringe
EP0327061A1 (en) * 1988-02-01 1989-08-09 The Medtech Group, Inc. Disposable retractable syringe
US5011476A (en) * 1987-07-01 1991-04-30 Foster Robert J C Single fill and use syringe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574964A (en) * 1949-06-24 1951-11-13 Eisenstark Julius Syringe
US2856923A (en) * 1954-10-22 1958-10-21 Baum Syringe
US5011476A (en) * 1987-07-01 1991-04-30 Foster Robert J C Single fill and use syringe
WO1989000057A1 (en) * 1987-07-02 1989-01-12 Robert John Charles Foster Single fill and use syringe
EP0327061A1 (en) * 1988-02-01 1989-08-09 The Medtech Group, Inc. Disposable retractable syringe

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