GB691754A - Improvements relating to hypodermic injection apparatus - Google Patents

Improvements relating to hypodermic injection apparatus

Info

Publication number
GB691754A
GB691754A GB23606/50A GB2360650A GB691754A GB 691754 A GB691754 A GB 691754A GB 23606/50 A GB23606/50 A GB 23606/50A GB 2360650 A GB2360650 A GB 2360650A GB 691754 A GB691754 A GB 691754A
Authority
GB
United Kingdom
Prior art keywords
medicament
chamber
plunger
ampoule
nozzle
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
GB23606/50A
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.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
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 Becton Dickinson and Co filed Critical Becton Dickinson and Co
Publication of GB691754A publication Critical patent/GB691754A/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
    • A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
    • 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
    • A61M5/31525—Dosing
    • A61M5/31531—Microsyringes, e.g. having piston bore diameter close or equal to needle shaft diameter

Abstract

691,754. Hypodermic syringes. BECTON DICKINSON & CO. Sept. 26, 1950 [Sept. 29, 1949], No. 23606/50. Class 81 (ii). A needleless hypodermic injection device has a piston or plunger working in a medicamentreceiving chamber of small transverse dimension relative to its length, medicament being displaced from the chamber by the plunger which is solely operated by manual means. A plunger in the form of a rod 20 secured to an actuating member 21 may be moved within a medicament chamber 17 the length of which is at least one hundred times its diameter. The rod 20 is provided with tubular supporting means 22 which is also secured to the actuating member 21 but which is moved within the casing 10 of the apparatus and external to the medicament chamber 17. The forward end of the tubular supporting means 22 is provided with a member 15 which slidably engages the medicament chamber 17 and which abuts against a threaded collar 23 (Fig. 4), secured to the rear end of the medicament chamber 17, when the plunger rod 20 is retracted between the threaded collar 23 and a cap 24 fitted thereon sealing material 25 is enclosed. Medicament is discharged at a skin-penetrating velocity and pressure through an orifice 14 in a nozzle 13. A skin-contacting flange 12 is provided at the forward end of the casing 10. In an alternative embodiment of the invention (not shown) an ampoule of great length relative to its diameter may be housed within the medicament chamber, one end of the ampoule being provided with a stopper which may be pierced by a point on the inner end of the nozzle. The ampoule is inserted by removing the skin contacting flange and the nozzle.
GB23606/50A 1949-09-29 1950-09-26 Improvements relating to hypodermic injection apparatus Expired GB691754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US118701A US2667870A (en) 1949-09-29 1949-09-29 Injection apparatus

Publications (1)

Publication Number Publication Date
GB691754A true GB691754A (en) 1953-05-20

Family

ID=22380214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23606/50A Expired GB691754A (en) 1949-09-29 1950-09-26 Improvements relating to hypodermic injection apparatus

Country Status (2)

Country Link
US (1) US2667870A (en)
GB (1) GB691754A (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1783956A (en) * 1921-07-01 1930-12-09 Cook Lab Inc Medicament-dispensing cartridge
US1615136A (en) * 1922-02-17 1927-01-18 Raison Jean Louis Syringe for local anaesthesia
US2258863A (en) * 1939-03-27 1941-10-14 James A Rickert Method of anesthetizing
US2322244A (en) * 1940-03-18 1943-06-22 Marshall L Lockhart Hypodermic injector
US2322245A (en) * 1943-05-20 1943-06-22 Marshall L Lockhart Ypodermic injector and method of use thereof
US2380534A (en) * 1941-04-26 1945-07-31 Marshall L Lockhart Hypodermic injector
US2398544A (en) * 1945-01-06 1946-04-16 Marshall L Lockhart Hypodermic injector
US2431406A (en) * 1946-08-30 1947-11-25 Sterling Drug Inc Cartridge-cylinder unit for hypodermic syringes

Also Published As

Publication number Publication date
US2667870A (en) 1954-02-02

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