Reservoir filling systems and methods

• US 9,494,147 B2
• Filed: 08/15/2013
• Issued: 11/15/2016
• Est. Priority Date: 07/08/2009
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Chong, Colin A., Luan, Truong Gia, Bikovsky, Rafael, Ibranyan, Arsen
• Primary Examiner(s): Landry, II, Gerald
• Application Number:
  US13/968,321
• Publication Number:
  US 20130327413A1
• Time in Patent Office: 1,188 Days
• Field of Search: 604/72, 604131-155, 604/221, 604/228
• US Class Current: 1/1
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/1726 the body parameters being measured at, or proximate to, the infusion site
• 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: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: F04B 23/02 having reservoirs
• CPC Class Codes: Y10T 137/0402 Cleaning, repairing, or assembling
• CPC Class Codes: Y10T 137/85978 With pump
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A reservoir may be filled with fluidic media in a first type of environment, a plunger head may be placed within the reservoir in the first type of environment, and a casing that may be configured to envelop at least a portion of a plunger arm operatively connected to the plunger head may be attached adjacent to at least a portion of the reservoir in a second type of environment. A reservoir may be provided having a first and second portion for respectively containing fluidic media, the second portion may be adapted to be removable, the reservoir may be selectively filled with a first volume or a second volume of fluidic media, a seal member may be placed in the reservoir, and the second portion may be removed in a case where the reservoir contains the first volume of fluidic media.

Claims

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

filling an interior volume of a reservoir body with fluidic media;

placing a plunger head within the reservoir body, the plunger head being moveable in an axial direction within the reservoir body;

connecting a plunger arm to the plunger head, the plunger arm configured to selectively engage and disengage with a drive member, the plunger arm for moving the plunger head in the axial direction of the reservoir body when the plunger arm is engaged with and driven by the drive member, the plunger arm configured to be carried with the reservoir body away from the drive member when the plunger arm is disengaged from the drive member; and

after filling the interior volume of the reservoir body, connecting a casing to the reservoir body to cover at least a portion of the plunger arm and to allow the plunger arm to move in the axial direction relative to the reservoir body, the casing configured to be carried with the reservoir body away from the drive member when the casing is connected to the reservoir body and the plunger arm is disengaged and separated from the drive member.

2. A method as recited in claim 1, further comprising connecting the plunger arm to the plunger head after filling the interior volume of the reservoir body.

3. A method as recited in claim 1, further comprising connecting the plunger arm to the plunger head before filling the interior volume of the reservoir body.

4. A method as recited in claim 1, wherein filling an interior volume of the reservoir body is performed in a first environment;

and wherein at least one of (a) connecting the plunger arm to the plunger head, and (b) connecting the casing to the reservoir body is performed in a second environment that is different from the first environment.

5. A method as recited in claim 4, wherein the first environment is more aseptic than the second environment.

6. A method as recited in claim 4, wherein at least one of (a) connecting the plunger arm to the plunger head, and (b) connecting the casing to the reservoir body comprises removing the reservoir body from a first environment in which the filling is performed and placing the reservoir body in a second environment for the connecting.

7. A method as recited in claim 4, wherein placing a plunger head within the reservoir body is performed in a first environment.

8. A method as recited in claim 1, wherein connecting the plunger arm to the plunger head comprises securing the plunger arm in a fixed relation to the plunger head, and wherein connecting the casing to the reservoir body comprises securing the casing in a fixed relation to the reservoir body.

9. A method as recited in claim 8, wherein the plunger arm remains connected in the fixed relation to the plunger head, and the casing remains connected in a fixed relation to the reservoir body, when the plunger head is disengaged from the drive member and the reservoir body is carried away from the drive member.

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

filling an interior volume of a reservoir body with fluidic media;

placing a plunger head within the reservoir body, the plunger head being moveable in an axial direction within the reservoir body; and

after filling the interior volume of the reservoir body, connecting a plunger arm to the plunger head, the plunger arm configured to selectively engage and disengage with a drive member, the plunger arm for moving the plunger head in the axial direction of the reservoir body when the plunger arm is engaged with and driven by the drive member, the plunger arm configured to be carried with the reservoir body away from the drive member when the plunger arm is disengaged from the drive member;

wherein filling an interior volume of the reservoir body is performed in a first environment and wherein connecting the plunger arm to the plunger head is performed in a second environment that is different from the first environment.

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

filling an interior volume of a reservoir body with fluidic media;

placing a plunger head within the reservoir body, the plunger head being moveable in an axial direction within the reservoir body;

after filling the interior volume of the reservoir body, connecting a plunger arm to the plunger head, the plunger arm configured to selectively engage and disengage with a drive member, the plunger arm for moving the plunger head in the axial direction of the reservoir body when the plunger arm is engaged with and driven by the drive member, the plunger arm configured to be carried with the reservoir body away from the drive member when the plunger arm is disengaged from the drive member; and

connecting a casing to the reservoir body, to cover at least a portion of a plunger arm and to allow the plunger arm to move in the axial direction relative to the reservoir body, the casing configured to be carried with the reservoir body away from the drive member when the casing is connected to the reservoir body and the plunger arm is disengaged and separated from the drive member.

12. A method as recited in claim 11, wherein filling an interior volume of the reservoir body and placing a plunger head within the reservoir body are performed in a first environment;

and wherein at least one of (a) connecting the plunger arm to the plunger head, and (b) connecting the casing to the reservoir body is performed in a second environment that is different from the first environment.

13. A method as recited in claim 12, wherein the first environment is more aseptic than the second environment.

14. A method as recited in claim 12, wherein at least one of (a) connecting the plunger arm to the plunger head, and (b) connecting the casing to the reservoir body comprises removing the reservoir body from a first environment in which the filling is performed and placing the reservoir body in a second environment for the connecting.

15. A method as recited in claim 12, wherein the first environment is more aseptic than the second environment.

17. A method as recited in claim 11, wherein connecting the plunger arm to the plunger head comprises securing the plunger arm in a fixed relation to the plunger head, and wherein connecting the casing to the reservoir body comprises securing the casing in a fixed relation to the reservoir body.

18. A method as recited in claim 17, wherein the plunger arm remains connected in the fixed relation to the plunger head, and the casing remains connected in a fixed relation to the reservoir body, when the plunger head is disengaged from the drive member and the reservoir body is carried away from the drive member.

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

filling an interior volume of a reservoir body with fluidic media;

placing a plunger head within the reservoir body, the plunger head being moveable in an axial direction within the reservoir body; and

after filling the interior volume of the reservoir body, connecting a plunger arm to the plunger head, the plunger arm configured to selectively engage and disengage with a drive member, the plunger arm for moving the plunger head in the axial direction of the reservoir body when the plunger arm engaged with and driven by the drive member, the plunger arm configured to be carried with the reservoir body away from the drive member when the plunger arm is disengaged from the drive member;

wherein connecting the plunger arm to the plunger head comprises removing the reservoir body from a first environment in which the filling is performed and placing the reservoir body in a second environment for the connecting.

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

a reservoir body having an interior volume for receiving and containing a fluidic media;

a plunger head installed within the reservoir body and adapted to be moveable in an axial direction within the reservoir body;

a plunger arm connected to the plunger head, the plunger arm configured to selectively engage and disengage with a drive member, the plunger arm for moving the plunger head in the axial direction of the reservoir body when the plunger arm is engaged with and driven by the drive member, the plunger arm configured to be carried with the reservoir body away from the drive member when the plunger arm is disengaged from the drive member; and

a casing attached to at least a portion of the reservoir body after the fluidic media has been received in the interior volume of the reservoir body, the casing enveloping at least a portion of a plunger arm that is connected to the plunger head, the casing further configured to allow the plunger arm to move in the axial direction relative to the reservoir body and the casing.