GB190904207A - An Improved Hypodermic Syringe. - Google Patents

An Improved Hypodermic Syringe.

Info

Publication number
GB190904207A
GB190904207A GB190904207DA GB190904207A GB 190904207 A GB190904207 A GB 190904207A GB 190904207D A GB190904207D A GB 190904207DA GB 190904207 A GB190904207 A GB 190904207A
Authority
GB
United Kingdom
Prior art keywords
piston
threads
collar
casing
stem
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
William Ball
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 GB190904207A publication Critical patent/GB190904207A/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
    • A61M5/31525—Dosing
    • 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

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

4207. Ball, W. Feb. 20. Syringes.-The piston stem of an hypodermic syringe is screw-threaded and is arranged so as to give a screw or push feed as desired. In the construction shown in Figs. 1 and 2, the screwthreaded piston-stem passes through a collar 3, rotatably seated in the rear end of the casing 5; the axis of the collar is .eccentric to that of the piston, and interrupted female threads 11 tapering on each side to points are cut on the bore of the collar. The collar may be partly rotated by means of a stud 7 projecting through a slot 6 in the casing, in order to throw the two threads into or out of engagement. In the construction shown in Fig. 5, the casing is formed with interrupted threads 14, and the threads 15 of the piston-stem are also interrupted so as to form a longitudinal recess 16 in the stem; partial rotation of the casing or piston brings the threads into or out of engagement as desired. The piston-head may be calibrated, or of lozenge shape, to indicate the revolutions.
GB190904207D 1909-02-20 1909-02-20 An Improved Hypodermic Syringe. Expired GB190904207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190904207T 1909-02-20

Publications (1)

Publication Number Publication Date
GB190904207A true GB190904207A (en) 1910-02-03

Family

ID=32637142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190904207D Expired GB190904207A (en) 1909-02-20 1909-02-20 An Improved Hypodermic Syringe.

Country Status (1)

Country Link
GB (1) GB190904207A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032039A1 (en) * 1979-12-26 1981-07-15 Medi-Tech, Incorporated Syringes
EP0209976A1 (en) * 1985-06-10 1987-01-28 Sherwood Medical Company Syringe locking device and method of attaching a locking device to a syringe
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032039A1 (en) * 1979-12-26 1981-07-15 Medi-Tech, Incorporated Syringes
EP0209976A1 (en) * 1985-06-10 1987-01-28 Sherwood Medical Company Syringe locking device and method of attaching a locking device to a syringe
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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