CA2181802A1 - Self administered injection pen apparatus and method - Google Patents

Self administered injection pen apparatus and method

Info

Publication number
CA2181802A1
CA2181802A1 CA002181802A CA2181802A CA2181802A1 CA 2181802 A1 CA2181802 A1 CA 2181802A1 CA 002181802 A CA002181802 A CA 002181802A CA 2181802 A CA2181802 A CA 2181802A CA 2181802 A1 CA2181802 A1 CA 2181802A1
Authority
CA
Canada
Prior art keywords
needle
dosing assembly
dose
skin
injection pen
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
CA002181802A
Other languages
French (fr)
Other versions
CA2181802C (en
Inventor
Peter Michael Knauer
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.)
Genentech Inc
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
Priority claimed from US08/195,307 external-priority patent/US5514097A/en
Application filed by Individual filed Critical Individual
Publication of CA2181802A1 publication Critical patent/CA2181802A1/en
Application granted granted Critical
Publication of CA2181802C publication Critical patent/CA2181802C/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
    • A61M5/315—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
    • A61M2005/31516—Piston or piston-rod constructions, e.g. connection of piston with piston-rod reducing dead-space in the syringe barrel after delivery
    • 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
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • 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
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31535—Means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing, means allowing correction of overset dose
    • A61M5/31536—Blocking means to immobilize a selected dose, e.g. to administer equal doses
    • A61M5/31538—Permanent blocking, e.g. by medical personnel

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A medicament injection apparatus for subcutaneous or intramuscular delivery of a medicament conceals the needle behind a needle shroud. On apparatus activation, the needle is trust forward, pushing the needle tip outside the needle shroud with enough force to puncture the skin. The needle is thus automatically introduced into the tissue at the proper needle skin orientation. In the same action, the apparatus automatically dispenses an accurate pre-set dose. The dose can be set by a manual, variable dosing assembly or by an automatic dosing assembly. The automatic dosing assembly includes a safety mechanism preventing the pre-set dose from being changed except by a doctor or patient using a special wrench or tool.
CA002181802A 1994-02-14 1995-02-14 Self administered injection pen apparatus and method Expired - Lifetime CA2181802C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US195,307 1994-02-14
US08/195,307 US5514097A (en) 1994-02-14 1994-02-14 Self administered injection pen apparatus and method
PCT/US1995/001509 WO1995021645A1 (en) 1994-02-14 1995-02-14 Self administered injection pen apparatus and method

Publications (2)

Publication Number Publication Date
CA2181802A1 true CA2181802A1 (en) 1995-08-17
CA2181802C CA2181802C (en) 2006-10-10

Family

ID=37111116

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002181802A Expired - Lifetime CA2181802C (en) 1994-02-14 1995-02-14 Self administered injection pen apparatus and method

Country Status (1)

Country Link
CA (1) CA2181802C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8926553B2 (en) 2000-12-22 2015-01-06 Christopher Nigel Langley Pen-type injector having an electronic control unit
CN113181477A (en) * 2015-06-04 2021-07-30 麦迪麦珀医疗工程有限公司 Cartridge insertion for drug delivery device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8926553B2 (en) 2000-12-22 2015-01-06 Christopher Nigel Langley Pen-type injector having an electronic control unit
CN113181477A (en) * 2015-06-04 2021-07-30 麦迪麦珀医疗工程有限公司 Cartridge insertion for drug delivery device
CN113181477B (en) * 2015-06-04 2023-07-14 麦迪麦珀医疗工程有限公司 Cartridge insertion for drug delivery device

Also Published As

Publication number Publication date
CA2181802C (en) 2006-10-10

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20150216