GB789027A - Improvements in or relating to plunger syringes especially for medical purposes - Google Patents

Improvements in or relating to plunger syringes especially for medical purposes

Info

Publication number
GB789027A
GB789027A GB22560/55A GB2256055A GB789027A GB 789027 A GB789027 A GB 789027A GB 22560/55 A GB22560/55 A GB 22560/55A GB 2256055 A GB2256055 A GB 2256055A GB 789027 A GB789027 A GB 789027A
Authority
GB
United Kingdom
Prior art keywords
plunger stem
spring
cap
opening
syringe
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
GB22560/55A
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.)
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
Publication of GB789027A publication Critical patent/GB789027A/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
    • 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
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M2005/3151—Means for blocking or restricting the movement of the rod or piston by friction
    • 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
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M5/31505—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit

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

789,027. Surgical syringes. HERTIG, W. Aug. 5, 1955 [April 4, 1955], No. 22560/55. Class 81 (2). A surgical syringe has a cap with an opening for the plunger stem and having a radially-sunk groove surrounding the opening, a spring, which is bent from spring wire and has limbs which engage the plunger stem tangentially, being freely located in the groove to permit lateral play of the plunger stem and the spring at right-angles to the plunger stem. A syringe cap 10 is provided with an opening 11, 12 for the passage of a plunger stem 13. A radially outwardly-sunk groove around the opening 11, 12 contains a spring 16 which bears tangentially against the plunger stem 13 and is dimensioned so that it can move radially with respect to the syringe cap 10 but not in the direction of movement of the plunger stem 13. A slot is provided to enable the cap 10 to be removed from the syringe. In an alternative construction a kidney-shaped spring 16, Fig. 5, is located in a groove 19 sunk radially inwardly in the head of the syringe cap 10, inwardly directed ends of the spring 16 passing through a channel 20 to a radially outwardlysunk groove 15 formed in the plunger opening 11, 12 of the cap 10 so that they bear resiliently against the plunger stem 13.
GB22560/55A 1955-04-04 1955-08-05 Improvements in or relating to plunger syringes especially for medical purposes Expired GB789027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH789027X 1955-04-04

Publications (1)

Publication Number Publication Date
GB789027A true GB789027A (en) 1958-01-15

Family

ID=4536820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22560/55A Expired GB789027A (en) 1955-04-04 1955-08-05 Improvements in or relating to plunger syringes especially for medical purposes

Country Status (6)

Country Link
BE (1) BE538443A (en)
CH (1) CH329580A (en)
DE (1) DE1073691B (en)
FR (1) FR1133007A (en)
GB (1) GB789027A (en)
NL (1) NL84958C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010151A1 (en) * 1988-04-18 1989-11-02 Nujenko Pty Ltd Single-use syringe
WO1991004065A1 (en) * 1989-09-18 1991-04-04 Assumpsit No. 102 Pty. Ltd. Syringe
US5328484A (en) * 1992-08-12 1994-07-12 Brice Somers Non-reusable syringe for medical purposes
WO2010063687A1 (en) * 2008-12-04 2010-06-10 Sanofi-Aventis Deutschland Gmbh Injection device with holding means to prevent unintentional movements of piston rod

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE331326C (en) * 1921-01-05 Carl Braun Head for guiding the plunger rod in injection or similar medical syringes
US2489040A (en) * 1946-02-14 1949-11-22 Becton Dickinson Co Holder
US2632445A (en) * 1951-10-20 1953-03-24 Sr John L Kas Dosing hypodermic syringe
DE1681693U (en) * 1954-02-27 1954-08-19 W Rottleb SPECIAL SYRINGE FOR HEART CATHETERIZATION WITH REFLECTIVE DEVICE.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010151A1 (en) * 1988-04-18 1989-11-02 Nujenko Pty Ltd Single-use syringe
WO1991004065A1 (en) * 1989-09-18 1991-04-04 Assumpsit No. 102 Pty. Ltd. Syringe
US5328484A (en) * 1992-08-12 1994-07-12 Brice Somers Non-reusable syringe for medical purposes
WO2010063687A1 (en) * 2008-12-04 2010-06-10 Sanofi-Aventis Deutschland Gmbh Injection device with holding means to prevent unintentional movements of piston rod
RU2526438C2 (en) * 2008-12-04 2014-08-20 Санофи-Авентис Дойчланд Гмбх Injection device with retainer for preventing unintentional movement of piston rod
CN102238974B (en) * 2008-12-04 2014-09-03 赛诺菲-安万特德国有限公司 Injection device with holding means to prevent unintentional movements of piston rod
US8915881B2 (en) 2008-12-04 2014-12-23 Sanofi-Aventis Deutschland Gmbh Injection device with holding means to prevent unintentional movements of piston rod
US9415170B2 (en) 2008-12-04 2016-08-16 Sanofi-Aventis Deutschland Gmbh Injection device with holding means to prevent unintentional movements of piston rod

Also Published As

Publication number Publication date
FR1133007A (en) 1957-03-20
BE538443A (en)
NL84958C (en)
CH329580A (en) 1958-04-30
DE1073691B (en) 1960-01-21

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