CA2356936A1 - Device for dosing the administration of an injectable product - Google Patents

Device for dosing the administration of an injectable product Download PDF

Info

Publication number
CA2356936A1
CA2356936A1 CA002356936A CA2356936A CA2356936A1 CA 2356936 A1 CA2356936 A1 CA 2356936A1 CA 002356936 A CA002356936 A CA 002356936A CA 2356936 A CA2356936 A CA 2356936A CA 2356936 A1 CA2356936 A1 CA 2356936A1
Authority
CA
Canada
Prior art keywords
teeth
series
feed direction
gear rack
moved
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
CA002356936A
Other languages
French (fr)
Other versions
CA2356936C (en
Inventor
Fritz Kirchhofer
Thomas Gurtner
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.)
Tecpharma Licensing AG
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 CA2356936A1 publication Critical patent/CA2356936A1/en
Application granted granted Critical
Publication of CA2356936C publication Critical patent/CA2356936C/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
    • A61M5/315—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
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
    • A61M5/3158—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod performed by axially moving actuator operated by user, e.g. an injection button
    • 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
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • A61M5/3155—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe
    • A61M5/31553—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe without axial movement of dose setting member
    • 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
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • A61M5/31556—Accuracy improving means
    • A61M5/31558—Accuracy improving means using scaling up or down transmissions, e.g. gearbox
    • 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
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • A61M5/31561—Mechanically operated dose setting member using freely adjustable volume steps
    • 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
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • A61M5/31563—Mechanically operated dose setting member interacting with a displaceable stop member
    • 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
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31566—Means improving security or handling thereof
    • A61M5/31573—Accuracy improving means
    • A61M5/31575—Accuracy improving means using scaling up or down transmissions, e.g. gearbox
    • 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
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/3159—Dose expelling manners
    • A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
    • 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston

Abstract

The invention concerns a device for administering an injectable product in doses, comprising:
a) a casing (1,5), comprising a reservoir (2) for the product;
b) a piston (3), which when moved in a feed direction towards an outlet (4) of the reservoir (2) forces product from the reservoir (2);
c) a gear rack (10), moving the piston (3) in the feed direction, comprising a first series of teeth (11) and a second series of teeth (12);
d) a drive member (20), movable relative to the casing (1,5) in and counter to the feed direction, and slaving the gear rack (10) when moved in the feed direction;
and e) a blocking means (6), arranged secured against shifting relative to the casing (1,5) and co-operating with one of the series of teeth (11,12) such that it prevents the gear rack (10) from being moved counter to the feed direction and allows the gear rack (10) to be moved in the feed direction.

The second series of teeth (12) comprises an elongated tooth gap (17a) with which the blocking means (7) co-operating with the second series of teeth (12) meshes, when the gear rack (10) assumes a starting position prior to a first administering.

The second series of teeth (12) comprises an elongated tooth gap (19a) with which the slaving means (22) co-operating with the second series of teeth (12) meshes, when the gear rack (10) assumes a starting position prior to a first administering.
CA002356936A 1999-01-12 2000-01-11 Device for dosing the administration of an injectable product Expired - Fee Related CA2356936C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19900827A DE19900827C1 (en) 1999-01-12 1999-01-12 Device for the dosed administration of an injectable product
DE19900827.2 1999-01-12
PCT/CH2000/000016 WO2000041752A1 (en) 1999-01-12 2000-01-11 Device for dosing the administration of an injectable product

Publications (2)

Publication Number Publication Date
CA2356936A1 true CA2356936A1 (en) 2000-07-20
CA2356936C CA2356936C (en) 2006-04-11

Family

ID=7894016

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002356936A Expired - Fee Related CA2356936C (en) 1999-01-12 2000-01-11 Device for dosing the administration of an injectable product

Country Status (19)

Country Link
US (1) US6613023B2 (en)
EP (1) EP1146923B1 (en)
JP (1) JP4194764B2 (en)
KR (1) KR100438041B1 (en)
CN (1) CN1177624C (en)
AT (1) ATE266439T1 (en)
AU (1) AU757363B2 (en)
BR (1) BR0007483A (en)
CA (1) CA2356936C (en)
CZ (1) CZ295394B6 (en)
DE (2) DE19900827C1 (en)
DK (1) DK1146923T3 (en)
ES (1) ES2221611T3 (en)
HU (1) HU224123B1 (en)
IL (2) IL144123A0 (en)
PL (1) PL196089B1 (en)
PT (1) PT1146923E (en)
RU (1) RU2212253C2 (en)
WO (1) WO2000041752A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP4137180A1 (en) * 2021-08-18 2023-02-22 Jmbiotech Co., Ltd. Device for injecting fixed quantity of liquid medicine
US11911598B2 (en) 2021-08-18 2024-02-27 Jmbiotech Co., Ltd. Device for injecting fixed quantity of liquid medicine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4137180A1 (en) * 2021-08-18 2023-02-22 Jmbiotech Co., Ltd. Device for injecting fixed quantity of liquid medicine
US11911598B2 (en) 2021-08-18 2024-02-27 Jmbiotech Co., Ltd. Device for injecting fixed quantity of liquid medicine

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EP1146923B1 (en) 2004-05-12
US20010051792A1 (en) 2001-12-13
ES2221611T3 (en) 2005-01-01
AU1854700A (en) 2000-08-01
CZ295394B6 (en) 2005-07-13
DE50006405D1 (en) 2004-06-17
AU757363B2 (en) 2003-02-20
JP4194764B2 (en) 2008-12-10
PL196089B1 (en) 2007-12-31
RU2212253C2 (en) 2003-09-20
WO2000041752A1 (en) 2000-07-20
CN1177624C (en) 2004-12-01
DK1146923T3 (en) 2004-08-02
US6613023B2 (en) 2003-09-02
CA2356936C (en) 2006-04-11
IL144123A (en) 2007-02-11
HU224123B1 (en) 2005-05-30
DE19900827C1 (en) 2000-08-17
ATE266439T1 (en) 2004-05-15
CZ20012512A3 (en) 2001-10-17
HUP0105005A3 (en) 2003-12-29
HUP0105005A2 (en) 2002-04-29
EP1146923A1 (en) 2001-10-24
KR100438041B1 (en) 2004-06-30
BR0007483A (en) 2002-01-22
JP2002534228A (en) 2002-10-15
IL144123A0 (en) 2002-05-23
PT1146923E (en) 2004-10-29
KR20010101489A (en) 2001-11-14
CN1336832A (en) 2002-02-20

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