CA2196316A1 - Syringe with cannula-protecting sheath and sealing center rod - Google Patents

Syringe with cannula-protecting sheath and sealing center rod

Info

Publication number
CA2196316A1
CA2196316A1 CA002196316A CA2196316A CA2196316A1 CA 2196316 A1 CA2196316 A1 CA 2196316A1 CA 002196316 A CA002196316 A CA 002196316A CA 2196316 A CA2196316 A CA 2196316A CA 2196316 A1 CA2196316 A1 CA 2196316A1
Authority
CA
Canada
Prior art keywords
cannula
syringe
barrel
collar
bore
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
CA002196316A
Other languages
French (fr)
Other versions
CA2196316C (en
Inventor
Stephen Michael Balaban
Jonathan Paul Smith
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.)
Eli Lilly and Co
Original Assignee
Stephen Michael Balaban
Jonathan Paul Smith
Monsanto Company
Pharmacia Corporation
Monsanto Technology Llc
Eli Lilly And Company
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 US08/283,324 external-priority patent/US5433711A/en
Application filed by Stephen Michael Balaban, Jonathan Paul Smith, Monsanto Company, Pharmacia Corporation, Monsanto Technology Llc, Eli Lilly And Company filed Critical Stephen Michael Balaban
Publication of CA2196316A1 publication Critical patent/CA2196316A1/en
Application granted granted Critical
Publication of CA2196316C publication Critical patent/CA2196316C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps
    • 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
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3104—Caps for syringes without needle
    • 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
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3107—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle for needles
    • A61M2005/311—Plugs, i.e. sealing rods or stylets closing the bore of needles

Abstract

A syringe assembly is comprised of a plunger (12), a syringe barrel (14) having a cannula collar (34) at one end of the barrel and an interior chamber (36) within the barrel, a hollow cannula (38) secured within the syringe barrel collar (34) with the cannula (38) extending axially from the collar to its distal end, a bore (52) extending axially through the cannula (38) and the syringe barrel collar (34), a segment of the bore decreasing (e.g., tapering) in diameter as it extends in a direction from the proximal end (42) of the cannula (38) toward the barrel interior chamber (36), and a sheath (16) removably attached to the syringe barrel (14) and covering the cannula (38), the sheath (16) being affixed to a center rod (68) extending axially from the sheath into the bore (52) at the cannula proximal end and then sealing engagement with said segment of the interior bore (52).
CA002196316A 1994-08-01 1995-07-14 Syringe with cannula-protecting sheath and sealing center rod Expired - Lifetime CA2196316C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/283,324 US5433711A (en) 1994-08-01 1994-08-01 Syringe with cannula-protecting sheath and sealing center rod
US08/283,324 1994-08-01
PCT/US1995/008719 WO1996004031A1 (en) 1994-08-01 1995-07-14 Syringe with cannula-protecting sheath and sealing center rod

Publications (2)

Publication Number Publication Date
CA2196316A1 true CA2196316A1 (en) 1996-02-15
CA2196316C CA2196316C (en) 2006-10-03

Family

ID=37101742

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002196316A Expired - Lifetime CA2196316C (en) 1994-08-01 1995-07-14 Syringe with cannula-protecting sheath and sealing center rod

Country Status (1)

Country Link
CA (1) CA2196316C (en)

Also Published As

Publication number Publication date
CA2196316C (en) 2006-10-03

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Legal Events

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MKEX Expiry

Effective date: 20150714