GB789029A - Improvements in hypodermic syringes - Google Patents

Improvements in hypodermic syringes

Info

Publication number
GB789029A
GB789029A GB25475/55A GB2547555A GB789029A GB 789029 A GB789029 A GB 789029A GB 25475/55 A GB25475/55 A GB 25475/55A GB 2547555 A GB2547555 A GB 2547555A GB 789029 A GB789029 A GB 789029A
Authority
GB
United Kingdom
Prior art keywords
plunger
needle
ampoule
cylinder
spring
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
GB25475/55A
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.)
AstraZeneca AB
Original Assignee
Astra AB
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 Astra AB filed Critical Astra AB
Publication of GB789029A publication Critical patent/GB789029A/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
    • A61M5/2422—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
    • A61M5/2425—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
    • 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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A61M5/281—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
    • A61M5/282—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/206—With automatic needle insertion
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically

Abstract

789,029. Hypodermic syringes. AKTIEBOLAGET ASTRA-APOTEKARNES KEMISKA FABRIKER. Sept. 5, 1955 [Oct. 27, 1954], No. 25475/55. Class 81 (2). A hypodermic syringe comprises a tubular body 1 having a wall partially closing its rear and a front wall 57 having a perforatable central portion, a holder 11, for a double-ended needle 14, slidably mounted within the body, an extensible spring 67 in the rear end of the body, a compressible ampoule 5 disposed between the spring 67 and the needle holder 11, means for locking the spring 67 in compressed position and means for releasing the locking means so that the needle 14 perforates the front wall of the body and the ampoule 5, and the ampoule 5 is compressed and its contents discharged through the needle 14. A spring-pressed plunger 19 is housed in the cylinder 1 which is formed in two parts 51, 52. The needle holder 11 has a recess 12 into which the ampoule 5 is pressed by the plunger 19 when it is to be pierced by the rear end of the needle 14. The forward end of the needle 14 rests in a sleeve 58 inside the front wall 57 of the cylinder 1. A rearwardly extending plunger stem 62 is held at the rear of the cylinder by inter-engaging lugs 68, 71 on a washer 65 and the stem 62 respectively, and by a pin 72 passing through the end of the plunger stem 19. On removing the pin 72 and disengaging the lugs 68, 71 by turning the washer 65, the plunger 19 is urged forwardly by the spring 67 so that the front wall 15 of the receptacle 5 and a part 59 of the front wall 57 of the cylinder 1 are punctured by the rear and front ends of the needle 14 respectively, and liquid is expelled as the ampoule 5 collapses. The rear end of the plunger stem 62 may be retained by radial metal tongues which engage a groove in the stem and which are carried by a sleeve on the cylinder 1. On telescoping the sleeve on the cylinder 1, the tongues are deflected to release the plunger. In another construction, Fig. 9, an ampoule 5 having side ribs 38 is flattened for the ejection of fluid as it passes into a longitudinal slot 44 in the plunger 19. All parts of the syringes except the needles are made of synthetic plastic material.
GB25475/55A 1954-10-27 1955-09-05 Improvements in hypodermic syringes Expired GB789029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE336552X 1954-10-27

Publications (1)

Publication Number Publication Date
GB789029A true GB789029A (en) 1958-01-15

Family

ID=6220501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25475/55A Expired GB789029A (en) 1954-10-27 1955-09-05 Improvements in hypodermic syringes

Country Status (4)

Country Link
US (1) US2871856A (en)
CH (1) CH336552A (en)
DK (1) DK87314C (en)
GB (1) GB789029A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155093A (en) * 1961-03-09 1964-11-03 Astra Apotekarnes Kem Fab Hypodermic syringe
US3228565A (en) * 1964-04-27 1966-01-11 George A Stanzel Defense weapon
WO1993003781A1 (en) * 1991-08-27 1993-03-04 Margolin George D Medical syringe with needle-retracting mechanism
US5480381A (en) * 1991-08-23 1996-01-02 Weston Medical Limited Needle-less injector

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK97966C (en) * 1954-10-27 1964-02-10 Astra Apotekarnes Kem Fab Syringe.
DE1133507B (en) * 1960-03-29 1962-07-19 Bundesrep Deutschland Injection device
DE1269771B (en) * 1961-03-21 1968-06-06 Int Treuhand A G Injection ampoule
DE1161389B (en) * 1961-08-07 1964-01-16 Otto Konigslow Mfg Company Injection device
CH400462A (en) * 1961-10-07 1965-10-15 Penicillin Ges Dauelsberg & Co Injection syringe
US3190619A (en) * 1963-05-27 1965-06-22 Union Carbide Corp Fluid mixing container assembly
US3368559A (en) * 1965-09-17 1968-02-13 Stanley J. Sarnoff Hypodermic injector with safely held release means
US3496937A (en) * 1967-05-18 1970-02-24 John E Balson Hypodermic syringe
FR2237643B1 (en) * 1973-07-17 1978-03-17 Steiner Maurice
JPS5064490U (en) * 1973-10-15 1975-06-11
US3943927A (en) * 1975-03-03 1976-03-16 Norgren Robert S Injection apparatus
US4026287A (en) * 1975-12-10 1977-05-31 Irene Haller Syringe with retractable cannula
US5957895A (en) * 1998-02-20 1999-09-28 Becton Dickinson And Company Low-profile automatic injection device with self-emptying reservoir
US6979316B1 (en) * 2002-05-23 2005-12-27 Seedlings Life Science Ventures Llc Apparatus and method for rapid auto-injection of medication
DK3184136T3 (en) * 2010-03-25 2021-08-23 New Injection Systems Ltd INJECTOR
WO2012110040A1 (en) * 2011-02-15 2012-08-23 Injector Aps Disposable injector for injecting a liquid into a patient
AU2013349611B2 (en) 2012-11-23 2018-05-31 Sensile Medical Ag Auto-injector assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US159192A (en) * 1875-01-26 Improvement in hypodermic syringes
US1921034A (en) * 1931-10-31 1933-08-08 Marche Norman O La Syringe container and ejector
US2309502A (en) * 1940-12-16 1943-01-26 Douglas Beverly Syringe
FR1078911A (en) * 1949-08-17 1954-11-24 Automatic hypodermic syringe and its ampoule
US2642064A (en) * 1951-04-24 1953-06-16 Becton Dickinson Co Injection device
US2627856A (en) * 1951-04-26 1953-02-10 Neil S Waterman Syringe
FR1103541A (en) * 1954-04-21 1955-11-03 Injection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155093A (en) * 1961-03-09 1964-11-03 Astra Apotekarnes Kem Fab Hypodermic syringe
US3228565A (en) * 1964-04-27 1966-01-11 George A Stanzel Defense weapon
US5480381A (en) * 1991-08-23 1996-01-02 Weston Medical Limited Needle-less injector
WO1993003781A1 (en) * 1991-08-27 1993-03-04 Margolin George D Medical syringe with needle-retracting mechanism
US5248303A (en) * 1991-08-27 1993-09-28 Margolin George D Medical syringe with needle-retracting mechanism

Also Published As

Publication number Publication date
US2871856A (en) 1959-02-03
DK87314C (en) 1959-05-19
CH336552A (en) 1959-02-28

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