Transfer guard systems and methods

• US 8,356,644 B2
• Filed: 08/07/2009
• Issued: 01/22/2013
• Est. Priority Date: 08/07/2009
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Chong, Colin A., Kavazov, Julian D., Bikovsky, Rafael, Ibranyan, Arsen, Lorenzen, Eric M., Srisathapat, Chad
• Primary Examiner(s): MAUST, TIMOTHY LEWIS
• Application Number:
  US12/537,579
• Publication Number:
  US 20110030845A1
• Time in Patent Office: 1,264 Days
• Field of Search: 141/319, 141/329, 141/330, 604/412
• US Class Current: 141/329
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2013 having two piercing ends
• CPC Class Codes: A61J 1/2075 for external venting
• CPC Class Codes: A61J 1/2089 Containers or vials which are to be joined to each other in order to mix their contents combinations of vial and syringe for mixing their contents A61J1/2096
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: Y10T 29/494 Fluidic or fluid actuated device making

Abstract

A transfer guard may provide a fluid path from a vial to a reservoir containing a plunger head connected to a plunger arm operatively engagable with a handle that at least partially covers a casing configured to allow the handle to operatively engage the plunger arm to move the plunger head to transfer fluidic media from the vial to the reservoir.

A support structure may have a chamber, a first adapter for mating with a vial containing fluidic media, and a second adapter for mating with a reservoir containing a plunger head moveable within the reservoir. A first needle may provide a fluid path from the vial to the reservoir and a second needle may connect the vial and the chamber containing an air flow control mechanism for allowing air to flow in one direction.

Claims

1. A system for transferring fluidic media, the system comprising:

a transfer guard for providing a fluid path from a vial to a reservoir;

a handle configured to be operatively engagable to a plunger arm connected to a plunger head arranged for movement in an axial direction of the reservoir, the handle comprising an engagement portion configured for pivotal movement to operatively engage and disengage the plunger arm, the engagement portion having an extension and the plunger arm having an aperture for receiving the extension when the engagement portion of the handle operatively engages the plunger arm; and

a casing configured to allow the plunger arm to move in the axial direction relative to the reservoir to move the plunger head in the axial direction within the reservoir, the handle configured to cover at least a portion of the casing;

the transfer guard and the handle configured such that fluidic media is transferred from the vial to the reservoir in a case where the handle is operatively engaged to the plunger arm and the handle is moved in the axial direction relative to the reservoir.

2. The system of claim 1, the casing having an opening for allowing the handle to operatively engage the plunger arm.

3. The system of claim 1, the handle comprising a slide adapted to cause the pivotal movement of the engagement portion to operatively engage and disengage the plunger arm.

4. The system of claim 3,

the slide adapted to move at least between a first position and a second position;

the engagement portion configured to engage the plunger arm when the slide is moved to the first position; and

the engagement portion configured to disengage the plunger arm when the slide is moved to the second position.

5. The system of claim 1, the extension of the engagement portion for extending through an opening in the casing to operatively engage the aperture in the plunger arm and for allowing the extension of the engagement portion to move along the opening as the plunger arm is moved by the handle.

6. The system of claim 1, the transfer guard having an end for mating with the reservoir, the end comprising a body configured to envelop the reservoir.

7. The system of claim 6, the body adapted to allow fluidic media in the reservoir to be viewable through the body in a case where the reservoir is connected to the end of the transfer guard and the reservoir contains fluidic media.

8. The system of claim 7, the body having an opening for allowing fluidic media in the reservoir to be viewable and for allowing a user-patient to provide further support to the reservoir during use of the system.

9. The system of claim 6, the body having one or more fill lines for measuring a volume of fluidic media in the reservoir.

10. A system for transferring fluidic media, the system comprising:

a transfer guard for providing a fluid path from a vial to a reservoir;

a handle configured to be operatively engagable to a plunger arm connected to a plunger head arranged for movement in an axial direction of the reservoir; and

a casing configured to allow the plunger arm to move in the axial direction relative to the reservoir to move the plunger head in the axial direction within the reservoir, the handle configured to cover at least a portion of the casing;

the transfer guard and the handle configured such that fluidic media is transferred from the vial to the reservoir in a case where the handle is operatively engaged to the plunger arm and the handle is moved in the axial direction relative to the reservoir;

the transfer guard having a chamber, the transfer guard comprising;

a first needle for connecting the interior volume of the vial to the interior volume of the reservoir to provide a fluid flow path from the interior volume of the vial to the interior volume of the reservoir;

a second needle for connecting the chamber and the interior volume of the vial; and

an air flow control mechanism arranged within the chamber and configured to allow air to flow in one direction in a case where the second needle connects the chamber and the vial and the plunger head is moved within the reservoir to transfer fluidic media from the interior volume of the vial to the interior volume of the reservoir.

11. The system of claim 10, the air flow control mechanism configured to allow the chamber to communicate with atmosphere to equalize pressure relative to atmosphere in the interior volume of the vial in a case where the second needle connects the chamber and the vial and the plunger head is moved within the reservoir to transfer fluidic media from the interior volume of the vial to the interior volume of the reservoir.

12. The system of claim 10, wherein the air flow control mechanism comprises a membrane configured to allow air to flow in one direction.

13. The system of claim 10, wherein the air flow control mechanism comprises a valve.

14. The system of claim 13, wherein the valve comprises at least one of an umbrella valve and a duckbill valve configured to allow air to flow in one direction.

15. A method of making a system for transferring fluidic media, the method comprising:

providing a transfer guard for providing a fluid path from a vial to a reservoir;

configuring a handle to be operatively engagable to a plunger arm connected to a plunger head arranged for movement in an axial direction of the reservoir, including providing the handle with an engagement portion configured for pivotal movement to operatively engage and disengage the plunger arm, the engagement portion having an extension and the plunger arm having an aperture for receiving the extension when the engagement portion of the handle operatively engages the plunger arm;

configuring a casing to allow the plunger arm to move in the axial direction relative to the reservoir to move the plunger head in the axial direction within the reservoir;

configuring the handle to cover at least a portion of the casing; and

configuring the transfer guard and the handle such that fluidic media is transferred from the vial to the reservoir in a case where the handle is operatively engaged to the plunger arm and the handle is moved in the axial direction relative to the reservoir.