Biosensor assembly with drum type container for analytical elements

• US 8,372,352 B2
• Filed: 12/21/2011
• Issued: 02/12/2013
• Est. Priority Date: 11/26/2008
• Status: Expired due to Fees

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: Chan, Frank A.
• Primary Examiner(s): Warden, Jill
• Assistant Examiner(s): TAVARES, JULIE L
• Application Number:
  US13/332,458
• Publication Number:
  US 20120118050A1
• Time in Patent Office: 419 Days
• Field of Search: 422/404
• US Class Current: 422/404
• CPC Class Codes: G01N 33/48757 Test elements dispensed from a stack

Abstract

A drum type container for analytical elements comprises a casing defining a compartment with a plurality of portions for receiving respective ones of the analytical elements. The container further comprises a base assembly to which the casing is rotatably mounted. The base assembly includes a dispenser mechanism for dispensing the glucose test strips from the casing and a locking mechanism for maintaining an alignment of a selected one of the compartment portions with the dispensing mechanism.

Claims

1. A biosensor assembly, including:

a blood glucose meter including a body with a display and a user interface on a front side of said body, said front side extending between opposite sidewalls of said body and opposite first and second ends of said body, said first end including a port for receiving an analytical element said meter including circuitry electrically connected to said analytical element when said analytical element is received within said port, said circuitry capable of measuring one or more properties of a fluid on said analytical element, said meter including said display in an electrical connection to display said measurement and said second end including a receptacle extending across said second end, said receptacle opening at each of said opposite sidewalls and said body includes at least one groove in said receptacle extending into said body; and

an elongated cylindrical container including a casing with a plurality of compartment portions housing respective ones of a plurality of analytical elements, said casing being removably mounted to a base assembly extending from said casing along a longitudinal axis of said container, wherein said casing includes at least one tongue extending from an outer surface thereof that is received in said groove in said body of said blood glucose meter, said at least one tongue engaging said at least one groove to rotatably fix said casing to said body while allowing said base assembly to rotate relative to said casing about said longitudinal axis to align a dispenser mechanism of said base assembly with a selected one of said plurality of compartment portions.

2. The assembly of claim 1, wherein said at least one tongue extends from said casing along said longitudinal axis of said container.

3. The assembly of claim 2, wherein said at least one tongue includes a pair of tongues that are spaced from one another along said longitudinal axis of said casing and said pair of tongues extend in a direction around said longitudinal axis about said casing, and said at least one groove includes a pair of grooves in said receptacle sized and spaced to receive respective ones of said pair of tongues.

4. The assembly of claim 1, wherein said casing includes a first sealing member at a first end thereof and a second sealing member at an opposite second end thereof, said second sealing member being configured for penetration by said dispenser mechanism to displace the analytical element therein through said first sealing member while said first and second sealing member maintain remaining ones of said plurality of compartment portions housing analytical elements in an airtight condition.

5. The assembly of claim 4, wherein said base assembly includes:

a body extending from said second end of said casing, said body including a cavity housing at least a portion of said dispenser mechanism.

6. The assembly of claim 5, wherein said dispenser mechanism includes:

an actuator mounted to said body with said actuator accessible outside said cavity; and

a plunger in said cavity coupled to said actuator, wherein said plunger is movable with said actuator from a first position wherein an upper end of said plunger is located within said cavity to a second position wherein said upper end extends through said second sealing member into said aligned compartment portion.

7. The assembly of claim 6, wherein:

said body of said base assembly includes a side wall extending around said cavity and an end wall opposite said casing, said body further including a longitudinal slot extending through said side wall and opening into said cavity;

said actuator extends through said slot and is coupled to said plunger; and

portions of said side wall along said slot frictionally engage said actuator to maintain said plunger in said first position until sufficient force is applied to said actuator to overcome said frictional engagement to move said actuator along said slot and move said plunger to said second position.

8. The assembly of claim 1, wherein said base assembly includes a spindle extending along said longitudinal axis and said casing includes a bore along said longitudinal axis for receiving said spindle therein so that said casing is rotatable relative to said base assembly about said spindle.

9. The assembly of claim 1, wherein:

said casing includes a number of detents radially spaced about the longitudinal axis that extend into an end of said casing in the direction of said longitudinal axis; and

said base assembly includes a locking mechanism releasably engaged to at least one of said detents when said at least one detent is aligned with said locking mechanism.

10. The assembly of claim 9, wherein said detents and said locking mechanism are arranged so that said locking mechanism normally projects from said base assembly along said longitudinal axis to engage at least one of said detents and maintain said base assembly and said casing in position relative to one another with said dispenser mechanism aligned with one of said plurality of compartment portions.

11. A biosensor assembly, including:

a blood glucose meter including a body with a display and a user interface on a front side of said body, said front side extending between opposite sidewalls of said body and opposite first and second ends of said body, said first end including a port for receiving an analytical element said meter including circuitry electrically connected to said analytical element when said analytical element is received within said port, said circuitry capable of measuring one or more properties of a fluid on said analytical element, said meter including said display in an electrical connection to display said measurement;

a cradle including a U-shaped body that defines an end opening receiving said blood glucose meter and a receptacle opposite said end opening, said U-shaped body including an end wall extending around said receptacle, said end wall including a window opening into said receptacle; and

an elongated cylindrical container including a casing with a plurality of compartment portions housing respective ones of a plurality of analytical elements, said casing being removably mounted to a base assembly to extend from said base assembly along a longitudinal axis, wherein said casing is received in said receptacle of said cradle with a sidewall of said casing adjacent to said window and with said base assembly engaged by said U-shaped body to rotatably fix said base assembly relative to said cradle while allowing said casing to rotate relative to said base assembly about said longitudinal axis to align a dispenser mechanism of said base assembly with a selected one of said plurality of compartment portions.

12. The assembly of claim 11, wherein said casing includes a first sealing member at a first end thereof and a second sealing member at an opposite second end thereof, said second sealing member being configured for penetration by said dispenser mechanism to displace the analytical element therein through said first sealing member while said first and second sealing member maintain remaining ones of said plurality of compartment portions housing analytical elements in an airtight condition.

13. The assembly of claim 12, wherein said base assembly includes:

a body extending from said second end of said casing, said body including a cavity housing at least a portion of said dispenser mechanism.

14. The assembly of claim 13, wherein said dispenser mechanism includes:

an actuator mounted to said body with said actuator accessible outside said cavity; and

a plunger in said cavity coupled to said actuator, wherein said plunger is movable with said actuator from a first position wherein an upper end of said plunger is located within said cavity to a second position wherein said upper end extends through said second sealing member into said aligned compartment portion.

15. The assembly of claim 14, wherein:

said body of said base assembly includes a side wall extending around said cavity and an end wall opposite said casing, said body further including a longitudinal slot extending through said side wall and opening into said cavity;

said actuator extends through said slot and is coupled to said plunger; and

portions of said side wall along said slot frictionally engage said actuator to maintain said plunger in said first position until sufficient force is applied to said actuator to overcome said frictional engagement to move said actuator along said slot and move said plunger to said second position.

16. The assembly of claim 11, wherein said base assembly includes a spindle extending along said longitudinal axis and said casing includes a bore along said longitudinal axis for receiving said spindle therein so that said casing is rotatable relative to said base assembly about said spindle.

17. The assembly of claim 11, wherein:

said casing includes a number of detents radially spaced about the longitudinal axis that extend into an end of said casing in the direction of said longitudinal axis; and

said base assembly includes a locking mechanism releasably engaged to at least one of said detents when said at least one detent is aligned with said locking mechanism.

18. The assembly of claim 17, wherein said detents and said locking mechanism are arranged so that said locking mechanism normally projects from said base assembly along said longitudinal axis to engage at least one of said detents and maintain said base assembly and said casing in position relative to one another with said dispenser mechanism aligned with one of said plurality of compartment portions.

19. The assembly of claim 11, wherein said body of said cradle defines an opening between said end opening and said receptacle and said display of said blood glucose meter is aligned with said opening when said container is positioned in said receptacle and said blood glucose meter is positioned in said cradle.

20. A biosensor assembly, including:

a blood glucose meter including a body with a display and a user interface on a front side of said body, said front side extending between opposite sidewalls of said body and opposite first and second ends of said body, said first end including a port for receiving an analytical element said meter including circuitry electrically connected to said analytical element when said analytical element is received within said port, said circuitry capable of measuring one or more properties of a fluid on said analytical element, said meter including said display in an electrical connection to display said measurement and said second end including a receptacle extending across said second end, said receptacle opening at each of said opposite sidewalls; and

an elongated cylindrical container including a casing with a plurality of compartment portions housing respective ones of a plurality of analytical elements, said casing being removably mounted to a base assembly extending from said casing along a longitudinal axis of said container, wherein said casing includes is rotatably fixed to said body of said blood glucose meter in said receptacle, said base assembly being rotatable relative to said casing about said longitudinal axis to align a dispenser mechanism of said base assembly with a selected one of said plurality of compartment portions.