GB2283683A - Syringe system - Google Patents

Syringe system

Info

Publication number
GB2283683A
GB2283683A GB9424451A GB9424451A GB2283683A GB 2283683 A GB2283683 A GB 2283683A GB 9424451 A GB9424451 A GB 9424451A GB 9424451 A GB9424451 A GB 9424451A GB 2283683 A GB2283683 A GB 2283683A
Authority
GB
United Kingdom
Prior art keywords
sleeve
needle
barrel
extended position
formations
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.)
Granted
Application number
GB9424451A
Other versions
GB9424451D0 (en
GB2283683B (en
Inventor
Robert Michael Wozencroft
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.)
Sterimatic Holdings Ltd
Original Assignee
Sterimatic Holdings Ltd
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
Priority claimed from GB929212742A external-priority patent/GB9212742D0/en
Application filed by Sterimatic Holdings Ltd filed Critical Sterimatic Holdings Ltd
Priority to GB9424451A priority Critical patent/GB2283683B/en
Publication of GB9424451D0 publication Critical patent/GB9424451D0/en
Publication of GB2283683A publication Critical patent/GB2283683A/en
Application granted granted Critical
Publication of GB2283683B publication Critical patent/GB2283683B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3257—Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • A61M5/3272—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position having projections following labyrinth paths

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (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

A syringe system (1) for use with a prefilled injectate cartridge (9) comprises a hollow cylindrical barrel (2) having an outlet (3) at one end for passage of liquid to be expelled along a hollow pointed needle (5) by depression of a plunger (12). A protective sleeve (14) is mounted on the barrel (2) and is slidable along the barrel between a contracted position in which the needle (5) projects through an apertured end (15) of the sleeve (14), and an extended position in which the point of the needle (5) is located within the sleeve (14) to shield the point of the needle. Interengaging formations (22, 24, 26) on the barrel (2) and sleeve (14) are provided for retaining the sleeve (14) in the extended position, and a spring (19) is provided for resiliently biasing the sleeve (14) towards its extended position so that the sleeve (14) will automatically assume its extended position, and be retained therein by the interengaging formations (22, 24, 26), on release of pressure applied in the direction of contracting movement. Further interengaging formations (24, 23) are provided on the barrel (2) and sleeve (14) for retaining the sleeve in the contracted position to enable location of the needle (5) at the site of injection, the engagement of these formations being automatically released on depression of the plunger (12). Automatic shielding of the needle thereby takes place without requiring any specific operator action. <IMAGE>
GB9424451A 1992-06-16 1993-05-26 Syringe system with slidable protective sleeve Expired - Fee Related GB2283683B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9424451A GB2283683B (en) 1992-06-16 1993-05-26 Syringe system with slidable protective sleeve

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB929212742A GB9212742D0 (en) 1992-06-16 1992-06-16 Syringe or blood collection system
GB9424451A GB2283683B (en) 1992-06-16 1993-05-26 Syringe system with slidable protective sleeve
PCT/GB1993/001087 WO1993025254A1 (en) 1992-06-16 1993-05-26 Syringe systems

Publications (3)

Publication Number Publication Date
GB9424451D0 GB9424451D0 (en) 1995-03-01
GB2283683A true GB2283683A (en) 1995-05-17
GB2283683B GB2283683B (en) 1996-05-01

Family

ID=26301077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9424451A Expired - Fee Related GB2283683B (en) 1992-06-16 1993-05-26 Syringe system with slidable protective sleeve

Country Status (1)

Country Link
GB (1) GB2283683B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6527742B1 (en) 2001-11-14 2003-03-04 Robert C. Malenchek Safety syringe
US6926697B2 (en) 2003-05-13 2005-08-09 Robert Malenchek Adaptor for converting a non-safety syringe into a safety syringe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268445A2 (en) * 1986-11-19 1988-05-25 Sterimatic Holdings Limited Improvements in or relating to injection devices
US4820275A (en) * 1987-12-21 1989-04-11 Habley Medical Technology Corporation Retractable needle syringe with integral spring
US4946446A (en) * 1989-06-14 1990-08-07 Vadher Dinesh L Retractable needle
WO1990014112A1 (en) * 1989-05-05 1990-11-29 Burns Cameron A Protective sleeve for hypodermic needle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268445A2 (en) * 1986-11-19 1988-05-25 Sterimatic Holdings Limited Improvements in or relating to injection devices
US4820275A (en) * 1987-12-21 1989-04-11 Habley Medical Technology Corporation Retractable needle syringe with integral spring
WO1990014112A1 (en) * 1989-05-05 1990-11-29 Burns Cameron A Protective sleeve for hypodermic needle
US4946446A (en) * 1989-06-14 1990-08-07 Vadher Dinesh L Retractable needle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6527742B1 (en) 2001-11-14 2003-03-04 Robert C. Malenchek Safety syringe
US6926697B2 (en) 2003-05-13 2005-08-09 Robert Malenchek Adaptor for converting a non-safety syringe into a safety syringe

Also Published As

Publication number Publication date
GB9424451D0 (en) 1995-03-01
GB2283683B (en) 1996-05-01

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20120526