.

Pharmaceutical Business Intelligence

  • Anticipate P&T budget requirements
  • Evaluate market entry opportunities
  • Find generic sources and suppliers
  • Predict branded drug patent expiration

► Plans and Pricing

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

DrugPatentWatch Database Preview

Details for Patent: 8,663,175

« Back to Dashboard

Details for Patent: 8,663,175

Title:Drive mechanisms suitable for use in drug delivery devices
Abstract: The present disclosure is directed to a dose setting mechanism that may be used with a drug delivery device. The dose setting mechanism may include an inner body having a helical thread along an outer cylindrical surface of the inner body, and a drive sleeve for driving a piston rod in an axial direction, the drive sleeve positioned within at least a portion of the inner body. The dose setting mechanism may further include a dose dial sleeve rotatably engaged with the helical thread of the inner body and a dial grip connected to the dose dial sleeve and releasably connected to the drive sleeve. Further when a dose is set, the dial grip is rotated so that both the dose dial sleeve and the drive sleeve rotate with respect to the inner body.
Inventor(s): Veasey; Robert Frederick (Warwickshire, GB), Langley; Christopher Nigel (Warwickshire, GB), Wimpenny; Steven (Warwickshire, GB)
Assignee: Sanofi-Aventis Deutschland GmbH (Frankfurt am Main, DE)
Filing Date:Sep 09, 2013
Application Number:14/021,729
Claims:1. A dose setting and delivery mechanism for a disposable pen-type injector comprising, a) an exterior housing; b) a dose dial grip releasably engaged with a drive sleeve through a clutch such that during dose setting the drive sleeve and dose dial grip are rotationally fixed; c) a non-circular cross section piston rod threadedly engaged with an interior housing fixed to the exterior housing; d) a nut having external splines that is configured to rotate relative to the piston rod during dose setting and to move axially in proportion to a set dose; e) a dose dial sleeve having an external surface with numerals indicative of a set dose that is threadedly engaged with the exterior housing; and f) a unidirectional coupling configured to prevent rotation of the piston rod during dose setting and to allow the piston rod to rotate during dose delivery.

2. The mechanism of claim 1 further comprising a stored energy drive mechanism configured to drive the drive sleeve during dose delivery.

3. The mechanism of claim 2 wherein the stored energy drive mechanism comprises a spring.

4. The mechanism of claim 1 further comprising a "T" shaped dose button configured to be depressed to deliver a set dose and to drive the drive sleeve in an axial direction.

5. The mechanism of claim 1 further characterized in that the dose dial sleeve is axially displaceable relative to the piston rod.

6. The mechanism of claim 5 further characterized in that the dose dial sleeve is not rotatable relative to the piston rod during dose delivery.

7. The mechanism of claim 1 further comprising a clicker associated with the drive sleeve and configured to cause a series of audible and tactile clicks upon dose setting.
« Back to Dashboard

For more information try a trial or see the database preview and plans and pricing

How are People Using DrugPatentWatch?

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

`abc