GB620824A - Improvements in or relating to hypodermic syringe and ampule - Google Patents

Improvements in or relating to hypodermic syringe and ampule

Info

Publication number
GB620824A
GB620824A GB2583/47A GB258347A GB620824A GB 620824 A GB620824 A GB 620824A GB 2583/47 A GB2583/47 A GB 2583/47A GB 258347 A GB258347 A GB 258347A GB 620824 A GB620824 A GB 620824A
Authority
GB
United Kingdom
Prior art keywords
plunger
syringe
plug
rod
nut
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
GB2583/47A
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.)
EUGEN DOLDER
Original Assignee
EUGEN DOLDER
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
Priority to CH266239D priority Critical patent/CH266239A/en
Application filed by EUGEN DOLDER filed Critical EUGEN DOLDER
Priority to GB2583/47A priority patent/GB620824A/en
Publication of GB620824A publication Critical patent/GB620824A/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
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • 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)

Abstract

620,824. Hypodermic syringe. DOLDER, E. Jan. 28, 1947, No. 2583. [Class 81(ii)] In a hypodermic &c. syringe including a cylindrical ampoule &c. inserted in the casing and closed at both ends by plugs or a plug and cap, the front plug or cap being punctured by the injecting needle and the rear plug serving as a plunger by means of a plunger rod, the plunger is made of elastic material and provided with means for axial compression and radial expansion to vary the sealing pressure of the plunger against the wall of the ampoule and permitting the syringe also to be used for withdrawing liquid. The syringe comprises a casing 1 into which the ampoule plug 2 or cap and a rear closure plug 3 is inserted, the plug 2 being punctured by the cannula 6 when operating the syringe. The rear plug 3 is provided with a bolt 9 having a head 10 and passing through a washer 12, the end of the bolt being engaged by a nut 13 having two lateral inclined faces 14 and recessed portions by means of which the plunger 3 is gripped and operated by the plunger rod 15 in the form of a tube. One end of the plunger rod is secured to the handle 16 and the other end is slotted at 17 to form two resilient parts adapted to engage the nut 13 to operate the plunger 3. The plunger rod 15 is provided with an axially movable bar 24 having an arrow head 26 by means of which the resilient parts of the plunger rod 15 may be forced apart when it is desired to disengage the plunger rod 15 from the plunger 3. When it is desired to vary the sealing or sliding pressure of the plunger 3 against the glass casing 4 the plunger bar 15 is engaged with the nut 13 and rotation of the bar 15 varies the axial compression, and therefore the radial expansion of the plunger 3. In this way when the syringe is used to withdraw liquid into the casing 4 the plunger 3 on completion of its stroke may be compressed so that the liquid is sealed in the casing 4 which may then be removed from the syringe. The front plug 2 may be arranged to vary the sealing pressure by axial compression and radial expansion. In a modification the disengaging bar 24 is in the form of a tube within which is a rod having a nib engageable with the nut 13 whereby the nut may be turned by manual manipulation of the rod.
GB2583/47A 1947-01-15 1947-01-28 Improvements in or relating to hypodermic syringe and ampule Expired GB620824A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH266239D CH266239A (en) 1947-01-15 1947-01-15 Injection syringe.
GB2583/47A GB620824A (en) 1947-01-15 1947-01-28 Improvements in or relating to hypodermic syringe and ampule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH266239T 1947-01-15
GB2583/47A GB620824A (en) 1947-01-15 1947-01-28 Improvements in or relating to hypodermic syringe and ampule

Publications (1)

Publication Number Publication Date
GB620824A true GB620824A (en) 1949-03-30

Family

ID=41263957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2583/47A Expired GB620824A (en) 1947-01-15 1947-01-28 Improvements in or relating to hypodermic syringe and ampule

Country Status (2)

Country Link
CH (1) CH266239A (en)
GB (1) GB620824A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869542A (en) * 1957-02-01 1959-01-20 Leo A Orsten Universal aspirating syringe for long and short cartridges
US2895473A (en) * 1954-07-12 1959-07-21 Cook Waite Lab Inc Aspirating cartridge syringe
US2895474A (en) * 1955-01-04 1959-07-21 Cook Waite Lab Inc Aspirating cartridge syringe
US2915064A (en) * 1955-01-21 1959-12-01 S & R J Everett & Co Ltd Hypodermic syringes
US2966910A (en) * 1955-07-06 1961-01-03 S & R J Everett & Co Ltd Locking devices
US3080866A (en) * 1961-07-07 1963-03-12 Friedman Benjamin Hypodermic needle
US5531703A (en) * 1992-04-28 1996-07-02 Schering-Plough Healthcare Products, Inc. Applicator for semisolid medications

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895473A (en) * 1954-07-12 1959-07-21 Cook Waite Lab Inc Aspirating cartridge syringe
US2895474A (en) * 1955-01-04 1959-07-21 Cook Waite Lab Inc Aspirating cartridge syringe
US2915064A (en) * 1955-01-21 1959-12-01 S & R J Everett & Co Ltd Hypodermic syringes
US2966910A (en) * 1955-07-06 1961-01-03 S & R J Everett & Co Ltd Locking devices
US2869542A (en) * 1957-02-01 1959-01-20 Leo A Orsten Universal aspirating syringe for long and short cartridges
US3080866A (en) * 1961-07-07 1963-03-12 Friedman Benjamin Hypodermic needle
US5531703A (en) * 1992-04-28 1996-07-02 Schering-Plough Healthcare Products, Inc. Applicator for semisolid medications

Also Published As

Publication number Publication date
CH266239A (en) 1950-01-15

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