US 10,537,680 B2Granted

Portable drug mixing and delivery device and associated methods

AssigneeWindgap Medical, Inc.

InventorsCole Constantineau, Christopher J. Stepanian, Adam R. Standley, Michel Bruehwiler, Brent Buchine, Jeffrey Thomas Chagnon, Robert Brik

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Abstract

A portable auto-injector configured to store a liquid component in a first chamber separately from a dry medication in a second chamber, wherein a first actuation mechanism opens a valve allowing for the initiation of a mixing step prior to injection. An extendable needle guard is provided over the delivery assembly which prevents premature injection as well as inadvertent sticks or other cross contamination of a needle. The needle guard can also form part of a secondary trigger mechanism which injects the mixed components after the mixing stage is complete.

Claims20

Dependent claims

A medication mixing and delivery device, the device comprising:

a housing;
a first chamber being located within the housing, the first chamber containing a first medicament component;
a second chamber located within the housing, the second chamber configured to selectively receive the first medicament component from the first chamber;
a valve located within the housing, the valve configured to provide selective fluidic communication between the first chamber and the second chamber;
a first displacement mechanism configured to reduce the effective volume of the first chamber and axially translate the second chamber with respect to the first chamber during a first actuation;
a second displacement mechanism configured to reduce the effective volume of the second chamber;
a second medicament component stored within the housing and outside the first chamber;
an actuation device having a pre-loaded energy source,
wherein the actuation device is in mechanical communication with the valve, the actuation device being configured to change the valve between a closed state and an open state during a first actuation.

6 more elements

A medication mixing device, the device comprising:

a housing;
a frame disposed within the housing, the frame having at least one channel on an inner surface thereof;
a first chamber being located within the housing, the first chamber containing a first medicament component;
a second chamber located within the housing, the second chamber configured to selectively receive the first medicament component from the first chamber;
a valve located within the housing, the valve configured to provide selective fluidic communication between the first chamber and the second chamber;
a first displacement mechanism configured to reduce the effective volume of the first chamber;
a second displacement mechanism configured to reduce the effective volume of the second chamber;
a second medicament component stored within the housing and outside the first chamber;
an actuation device having a pre-loaded energy source,
wherein the actuation device is in mechanical communication with the valve, the actuation device being configured to change the valve between a closed state and an open state during a first actuation.

7 more elements

A medication mixing and delivery device comprising:

a housing;
a first chamber being located within the housing, the first chamber containing a first medicament component;
a second chamber located within the housing, the second chamber configured to selectively receive the first medicament component from the first chamber;
a valve located within the housing, the valve configured to provide selective fluidic communication between the first chamber and the second chamber;
a first displacement mechanism configured to reduce the effective volume of the first chamber;
a second displacement mechanism configured to reduce the effective volume of the second chamber;
a second medicament component stored within the housing and outside the first chamber;
an actuation device having a pre-loaded energy source,
wherein the actuation device is in mechanical communication with the valve, the actuation device being configured to change the valve between a closed state and an open state during a first actuation;
a needle shield assembly comprising a needle shield having a cam ramp provided in a sidewall of the needle shield, wherein the cam ramp is in mechanical communication with the actuation device, and wherein a depression of the needle shield causes a second actuation;
and
a delivery assembly in fluid communication with the second chamber.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/832,441Filed 5 Dec 2017 · continuation
Priority: 18 Aug 2014
Published: US 2018/0126076 A110 May 2018
Granted: 21 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification33 codes

A61M 5/19
Syringes: having more than one chamber
A61M 5/00
Devices for bringing media into the body in a subcutaneous, intra-vascular or
A61M 5/2033
Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically: spring-loaded one-shot…
A61M 5/2046
Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically: media being expelled from…

Family

Application62/038,386Us provisional application · filed 18 Aug 2014
Application62/061,664Us provisional application · filed 8 Oct 2014
Application62/120,792Us provisional application · filed 25 Feb 2015
Application62/126,011Us provisional application · filed 27 Feb 2015
Application62/204,940Us provisional application · filed 13 Aug 2015
PCT/US2015/045768Parent of this continuation · filed 18 Aug 2015
US 2018/0126076 A1Pre-grant publication · published 10 May 2018
Application15/035,132Parent of this continuation
US 9,925,335 B2Parent of this continuation
US 2016/0263320 A1Published application
US 10,537,680 B2This patent

From the US filing history. Foreign family members aren’t listed.