Medicated module with bypass and needle guard

Patent metadata

Field	Value
Publication number	US-9238107-B2
Application number	US-201013322097-A
Country	US
Kind code	B2
Filing date	Jun 1, 2010
Priority date	Jun 2, 2009
Publication date	Jan 19, 2016
Grant date	Jan 19, 2016

Abstract

A medicated module attachable to a drug delivery device comprises a connecting body configured for attachment to the drug delivery device. A first needle is fixed within the connecting body and a movable needle hub is operatively coupled to the connecting body. A needle guard is operatively coupled to the connecting body and a biasing member is positioned between the connecting body and needle guard. A second needle is fixed within the needle hub. A first cavity within the connecting body defines a reservoir containing at least one dose of a medicament. The reservoir configured for fluid communication with the first and the second needle. The reservoir comprises a bypass configured to allow medicament from the drug delivery device to bypass the reservoir and exit the second needle.

First claim

We claim:

1. A medicated module attachable to a drug delivery device containing a primary reservoir with a first medicament, said medicated module comprising:
a connecting body configured for attachment to said drug delivery device;
a proximal first needle fixed within said medicated module;
a distal second needle fixed within said medicated module;
a bypass component moveable between a first position and a second position;
a needle guard operatively coupled to said medicated module;
a biasing element positioned to bias said needle guard; and
a secondary reservoir containing at least one dose of a second medicament and configured for fluid communication with said first and second needle,
wherein said bypass component defines a cavity that retains said secondary reservoir,
wherein said bypass component comprises at least one bypass vane,
wherein in said first position, said bypass component is configured to allow said first medicament from said drug delivery device to bypass said secondary reservoir and exit said second needle while said second needle is in fluid engagement with said first needle, and
wherein in said second position, said bypass component provides a fluid connection between said first needle, said secondary reservoir, and said second needle.

2. The module of claim 1 further comprising a movable needle hub operatively coupled to said connecting body.

3. The module of claim 2 wherein when said movable needle hub is moved from a priming position to a dose injection position, said first needle pierces said secondary reservoir and said second needle pierces said secondary reservoir, wherein said priming position of said movable needle hub relates to said first position of said bypass component and said dose injection position of said needle hub relates to said second position of said bypass component.

4. The module of claim 1 wherein when said medicated module is used, said needle guard moves in a proximal direction to a first position against a force created by said biasing element.

5. The module of claim 4 wherein after said medicated module is used, said needle guard moves in a distal direction to a second position because of a force created by said biasing element.

6. The module of claim 5 wherein after said needle guard moves in said distal direction to said second position, said needle guard becomes locked.

7. The module of claim 1 wherein said needle guard is configured to be moved from an initial position and then to a secondary position and then returned to at least said initial position via the biasing element.

8. The module of claim 7 wherein when said needle guard returns to at least said initial position, said needle guard substantially conceals said second needle.

9. The module of claim 1 wherein said biasing element comprises a compression spring.

10. The module of claim 1 wherein said medicated module comprises a single dose of medicament.

Assignees

• Davies James Alexander
• Wimpenny Steven
• De Sausmarez Lintell Daniel Thomas
• Boyd Malcolm Stanley
• Rekaya Naceur
• Bilton Simon Lewis
• Cross John David
• Sanofi Aventis Deutschland

Inventors

• Davies James Alexander
• Wimpenny Steven
• De Sausmarez Lintell Daniel Thomas
• Boyd Malcolm Stanley
• Rekaya Naceur
• Bilton Simon Lewis
• Cross John David

Classifications

• A61M2005/3267

  Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body · CPC title

• A61M2005/3247

  Means to impede repositioning of protection sleeve from needle covering to needle uncovering position · CPC title

• A61M5/326

  Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user · CPC title

• A61M2005/1787

  Syringes for sequential delivery of fluids, e.g. first medicament and then flushing liquid · CPC title

• A61M2005/3142

  Modular constructions, e.g. supplied in separate pieces to be assembled by end-user · CPC title