CA2521634A1 - Drive mechanisms suitable for use in drug delivery devices - Google Patents
Drive mechanisms suitable for use in drug delivery devices Download PDFInfo
- Publication number
- CA2521634A1 CA2521634A1 CA002521634A CA2521634A CA2521634A1 CA 2521634 A1 CA2521634 A1 CA 2521634A1 CA 002521634 A CA002521634 A CA 002521634A CA 2521634 A CA2521634 A CA 2521634A CA 2521634 A1 CA2521634 A1 CA 2521634A1
- Authority
- CA
- Canada
- Prior art keywords
- drug delivery
- housing
- drive mechanism
- delivery device
- piston rod
- 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
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
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31583—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod
- A61M5/31585—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod performed by axially moving actuator, 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
- A61M5/31551—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe including 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
- A61M5/24—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
- A61M5/31565—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
Abstract
The invention relates to a drive mechanism for use in a drug delivery device comprising an epicyclic gearbox. This drive mechanism can comprise a housing (2) having a helical thread; a piston rod (20) having a non-circular cross section and an external helical thread; a dose dial sleeve (30), which is threadedly engaged with said housing and being rotatable with respect to said housing; a drive sleeve (50), located between said housing and said piston rod, which is threadedly engaged with said piston rod.
Claims (6)
1. A drive mechanism for use is a drug delivery device comprising an epicyclic gearbox, a housing having a helical thread;
a piston rod having a non-circular cross section and an external helical thread;
a dose dial sleeve, which is threadedly engaged with said housing and being rotatable with respect to said housing;
a drive sleeve, located between said housing and said piston rod, which is threadedly engaged with said piston rod.
a piston rod having a non-circular cross section and an external helical thread;
a dose dial sleeve, which is threadedly engaged with said housing and being rotatable with respect to said housing;
a drive sleeve, located between said housing and said piston rod, which is threadedly engaged with said piston rod.
2. The drive mechanism according to claim 1 characterized in that the said dose dial sleeve is releasibly connected to the said drive sleeve by the said epicyclic gearbox.
3. An assembly for use in a drug delivery device comprising the drive mechanism according to any of claims 1 or 2.
4. A drug delivery device comprising the drive mechanism or the assembly according to any of claims 1 to 3.
5. A method of assembling a drug delivery device comprising the step of providing a drive mechanism or an assembly according to any of claims 1 to 3.
6. The use of a drug delivery device as defined in claim 4 for dispensing a medicinal product comprising an active compound selected from the group consisting of insulin, growth hormone, low molecular weight heparin, their analogues and their derivative.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0308267.4 | 2003-04-10 | ||
GBGB0308267.4A GB0308267D0 (en) | 2003-04-10 | 2003-04-10 | Improvements in and relating to a pen-type injector |
PCT/EP2004/003782 WO2004089450A1 (en) | 2003-04-10 | 2004-04-08 | Drive mechanisms suitable for use in drug delivery devices |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2521634A1 true CA2521634A1 (en) | 2004-10-21 |
CA2521634C CA2521634C (en) | 2011-11-22 |
Family
ID=9956535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2521634A Expired - Fee Related CA2521634C (en) | 2003-04-10 | 2004-04-08 | Drive mechanisms suitable for use in drug delivery devices |
Country Status (11)
Country | Link |
---|---|
US (1) | US7918832B2 (en) |
EP (1) | EP1615686A1 (en) |
JP (1) | JP4847858B2 (en) |
AR (1) | AR043842A1 (en) |
AU (1) | AU2004228940B2 (en) |
CA (1) | CA2521634C (en) |
GB (1) | GB0308267D0 (en) |
IL (1) | IL171247A (en) |
MX (1) | MXPA05010623A (en) |
TW (1) | TWI322017B (en) |
WO (1) | WO2004089450A1 (en) |
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-
2003
- 2003-04-10 GB GBGB0308267.4A patent/GB0308267D0/en not_active Ceased
-
2004
- 2004-04-07 AR ARP040101203A patent/AR043842A1/en active IP Right Grant
- 2004-04-08 JP JP2006505074A patent/JP4847858B2/en not_active Expired - Fee Related
- 2004-04-08 AU AU2004228940A patent/AU2004228940B2/en not_active Ceased
- 2004-04-08 EP EP04726460A patent/EP1615686A1/en not_active Withdrawn
- 2004-04-08 WO PCT/EP2004/003782 patent/WO2004089450A1/en active Search and Examination
- 2004-04-08 US US10/820,047 patent/US7918832B2/en not_active Expired - Fee Related
- 2004-04-08 CA CA2521634A patent/CA2521634C/en not_active Expired - Fee Related
- 2004-04-08 MX MXPA05010623A patent/MXPA05010623A/en active IP Right Grant
- 2004-04-09 TW TW093109829A patent/TWI322017B/en not_active IP Right Cessation
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2005
- 2005-10-02 IL IL171247A patent/IL171247A/en active IP Right Grant
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US20050004529A1 (en) | 2005-01-06 |
JP4847858B2 (en) | 2011-12-28 |
MXPA05010623A (en) | 2005-12-12 |
EP1615686A1 (en) | 2006-01-18 |
CA2521634C (en) | 2011-11-22 |
WO2004089450A1 (en) | 2004-10-21 |
TWI322017B (en) | 2010-03-21 |
AU2004228940B2 (en) | 2010-09-30 |
JP2006522630A (en) | 2006-10-05 |
AR043842A1 (en) | 2005-08-17 |
AU2004228940A1 (en) | 2004-10-21 |
TW200507898A (en) | 2005-03-01 |
IL171247A (en) | 2012-08-30 |
US7918832B2 (en) | 2011-04-05 |
GB0308267D0 (en) | 2003-05-14 |
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