GB191327377A - Improvements in or relating to Surgical Injecting Syringes. - Google Patents

Improvements in or relating to Surgical Injecting Syringes.

Info

Publication number
GB191327377A
GB191327377A GB191327377DA GB191327377A GB 191327377 A GB191327377 A GB 191327377A GB 191327377D A GB191327377D A GB 191327377DA GB 191327377 A GB191327377 A GB 191327377A
Authority
GB
United Kingdom
Prior art keywords
shaft
rod
worm
piston
flexible shaft
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
Inventor
Jules Cournand
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
Application granted granted Critical
Publication of GB191327377A publication Critical patent/GB191327377A/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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • 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
    • A61M5/31583—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod
    • A61M5/31586—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod performed by rotationally moving or pivoted actuator, 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
    • A61M5/315—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
    • A61M2005/3152—Piston or piston-rod constructions, e.g. connection of piston with piston-rod including gearings to multiply or attenuate the piston displacing force

Abstract

27,377. Cournand, J. Nov. 27. Syringes.-In an injection syringe, the piston 22 is actuated by mechanical means comprising a worm 7 and worm-wheel 9 and a piston-rod 6 provided with a screw-thread which engages a corresponding thread on the interior of the wheel 9. The shaft 8 of the worm 7 is in a plane parallel to the plane of the longitudinal axis of the rod 6 and is at right-angles to that axis ; it is driven by a flexible shaft connected to it by a right-angle gear. The casing of the flexible shaft is detachably connected to the shaft 8 by means of a loose sleeve on the shaft 8 provided with an opening opposite to which the end of the flexible shaft is forced on to the shaft 8 and held thereon by turning down an angular piece pivoted on the loose sleeve. A plate pivoted on the end of the casing of the flexible shaft engages a circular groove in the shaft 8 and is held in place by a pin on the pivoted angular piece. The piston 22 has one or two peripheral grooves 23, and is loosely connected to the rod 6 by a pin 24. Part of the screw-thread on the rod 6 is cut away to provide flat surfaces 19 on which a scale is mounted. The rod passes through a correspondingly-shaped opening 16 in a sleeve 15.
GB191327377D 1913-11-27 1913-11-27 Improvements in or relating to Surgical Injecting Syringes. Expired GB191327377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191327377T 1913-11-27

Publications (1)

Publication Number Publication Date
GB191327377A true GB191327377A (en) 1914-11-27

Family

ID=32646908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191327377D Expired GB191327377A (en) 1913-11-27 1913-11-27 Improvements in or relating to Surgical Injecting Syringes.

Country Status (1)

Country Link
GB (1) GB191327377A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005097240A1 (en) * 2004-03-30 2005-10-20 Eli Lilly And Company Medication dispensing apparatus with gear set having drive member accommodating opening
CN114366213A (en) * 2022-01-27 2022-04-19 上海心玮医疗科技股份有限公司 Accurate handle card formula syringe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005097240A1 (en) * 2004-03-30 2005-10-20 Eli Lilly And Company Medication dispensing apparatus with gear set having drive member accommodating opening
CN114366213A (en) * 2022-01-27 2022-04-19 上海心玮医疗科技股份有限公司 Accurate handle card formula syringe
CN114366213B (en) * 2022-01-27 2023-11-03 上海心玮医疗科技股份有限公司 Accurate handle card formula syringe

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