CA2021256A1 - Conveniently carried frequent use auto injector with cap structure - Google Patents

Conveniently carried frequent use auto injector with cap structure

Info

Publication number
CA2021256A1
CA2021256A1 CA002021256A CA2021256A CA2021256A1 CA 2021256 A1 CA2021256 A1 CA 2021256A1 CA 002021256 A CA002021256 A CA 002021256A CA 2021256 A CA2021256 A CA 2021256A CA 2021256 A1 CA2021256 A1 CA 2021256A1
Authority
CA
Canada
Prior art keywords
cap structure
hypodermic needle
members
unwanted
stressed spring
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
CA002021256A
Other languages
French (fr)
Other versions
CA2021256C (en
Inventor
Stanley Jay Sarnoff
Claudio Lopez
N. Lawrence Dalling
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.)
Meridian Medical Technologies Inc
Original Assignee
Stanley Jay Sarnoff
Claudio Lopez
N. Lawrence Dalling
Survival Technology, Inc.
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 US07/380,459 external-priority patent/US5085642A/en
Application filed by Stanley Jay Sarnoff, Claudio Lopez, N. Lawrence Dalling, Survival Technology, Inc. filed Critical Stanley Jay Sarnoff
Publication of CA2021256A1 publication Critical patent/CA2021256A1/en
Application granted granted Critical
Publication of CA2021256C publication Critical patent/CA2021256C/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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/206—With automatic needle insertion

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

A stressed spring assembly for providing an operative stroke in cooperating relation with a medicament cartridge assembly of an auto-injector so as to inject a liquid medicament of the medicament cartridge assembly through a hypodermic needle of the medicament cartridge assembly into an injection site of the user. The stressed spring assembly includes a cap structure serving the plural purposes of (1) facilitating the securement of the cap structure and remainder of the auto-injection with the user's pocket, (2) alleviating the likelihood of an unwanted release of the releasable mechanism of the stressed spring assembly with a resultant unwanted movement of the hypodermic needle and an unwanted movement of the liquid medicament outwardly of the hypodermic needle by requiring two different manual movements for its removal, and (3) protecting against an unwanted contact with the hypodermic needle while in extended operative position after withdrawal from the injection site. The cap structure is formed of first and second members disposed in a fixed assembled position with respect to one another into which the first and second members are snap-fitted by a relative movement toward one another in an axial direction. Both members are of a configuration enabling them to be molded by corresponding die surfaces contained on two die members movable together and apart.
CA002021256A 1989-07-17 1990-07-16 Conveniently carried frequent use auto injector with cap structure Expired - Fee Related CA2021256C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US380,459 1989-07-17
US07/380,459 US5085642A (en) 1989-07-17 1989-07-17 Conveniently carried frequent use autoinjector
US07/507,795 US5085641A (en) 1989-07-17 1990-04-12 Conveniently carried frequent use auto-injector with improved cap structure
US507,795 1990-04-12

Publications (2)

Publication Number Publication Date
CA2021256A1 true CA2021256A1 (en) 1991-01-18
CA2021256C CA2021256C (en) 2001-12-18

Family

ID=27008998

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002021256A Expired - Fee Related CA2021256C (en) 1989-07-17 1990-07-16 Conveniently carried frequent use auto injector with cap structure

Country Status (9)

Country Link
US (1) US5085641A (en)
EP (1) EP0409365B1 (en)
JP (1) JP2959638B2 (en)
KR (1) KR0168416B1 (en)
AU (1) AU645977B2 (en)
CA (1) CA2021256C (en)
DE (1) DE69008445T2 (en)
ES (1) ES2051464T3 (en)
IL (1) IL95099A (en)

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Also Published As

Publication number Publication date
ES2051464T3 (en) 1994-06-16
AU5899790A (en) 1991-01-17
EP0409365B1 (en) 1994-04-27
IL95099A0 (en) 1991-06-10
IL95099A (en) 1994-11-11
DE69008445D1 (en) 1994-06-01
JPH03118072A (en) 1991-05-20
JP2959638B2 (en) 1999-10-06
KR0168416B1 (en) 1999-01-15
EP0409365A1 (en) 1991-01-23
US5085641A (en) 1992-02-04
CA2021256C (en) 2001-12-18
AU645977B2 (en) 1994-02-03
KR910002477A (en) 1991-02-25
DE69008445T2 (en) 1994-08-18

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