DRUM TYPE CONTAINER FOR ANALYTICAL ELEMENTS

• US 20100127014A1
• Filed: 11/26/2008
• Published: 05/27/2010
• Est. Priority Date: 11/26/2008
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: Chan, Frank A.
• Granted Patent: US 8,147,755 B2
• Time in Patent Office: Days
• US Class Current: 221/46
• 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 drum type container for analytical elements, comprising:

a casing extending along a longitudinal axis between a first end and an opposite second end, said casing defining a plurality of compartment portions extending along said longitudinal axis between said first and second ends for receiving respective ones of a plurality of analytical elements, said casing further including a number of detents radially spaced about the longitudinal axis that extend into said second end in the direction of said longitudinal axis; and

a base assembly mounted to said second end of said casing so that said casing is rotatable relative to said base assembly about said longitudinal axis, wherein said base assembly includes a dispenser mechanism movable between said base assembly and said casing to dispense an analytical element from said respective compartment portion and a locking mechanism releasably engaged to at least one of said detents when said at least one detent is aligned with said locking mechanism, 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, at least a portion of said dispenser mechanism being movable through said second end of said casing to contact the analytical element in said aligned compartment portion to displace the analytical element through said first end of said casing.

2. The container of claim 1, wherein said casing includes a first sealing member at said first end and a second sealing member at said second end, 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 compartments housing analytical elements in an airtight condition.

3. The container of claim 2, 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.

4. The container of claim 3, 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.

5. The container of claim 4, 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.

6. The container of claim 1, wherein said casing further includes a plurality of desiccant compartments, each of said desiccant compartments being located adjacent to and in communication with a respective one of said plurality of compartment portions.

7. The container 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.

8. The container of claim 1, wherein said locking mechanism includes:

a locking member housed in a receptacle in said base assembly; and

a spring in said receptacle normally biasing said locking member in the direction of said longitudinal axis toward said second end of said casing to engage a corresponding one of said detents when said corresponding detent is aligned with said locking member.

9. The container of claim 1, wherein said locking mechanism includes:

a first locking member housed in a first receptacle in said base assembly;

a first spring in said first receptacle normally biasing said first locking member toward said second end of said casing;

a second locking member housed in a second receptacle in said base assembly; and

a second spring in said second receptacle normally biasing said second locking member toward said second end of said casing, wherein said first and second locking members and said number of detents are arranged so that said first and second locking members engage respective ones of first and second detents located on generally opposite sides of said aligned compartment portion when said first and second detents are aligned with said first and second locking members.

10. The container of claim 1, wherein said casing is disposable and said base assembly is reusable.

11. A container, comprising:

a plurality of analytical elements;

a drum type casing extending along a longitudinal axis between a first end and an opposite second end, said casing defining a plurality of compartment portions extending along said longitudinal axis between said first and second ends for receiving respective ones of said plurality of analytical elements, said casing further including a number of detents radially spaced about said longitudinal axis that extend into said second end in the direction of said longitudinal axis; and

a base assembly mounted to said second end of said casing so that said casing is rotatable relative to said base assembly about said longitudinal axis, wherein said base assembly includes dispenser means for dispensing an analytical element from said respective compartment portion and locking means confined within said base assembly and said casing for engaging at least one of said detents when said at least one detent is aligned with said locking means, wherein said detents and said locking means are arranged so that said locking means engage said at least one detent in said second end to maintain said base assembly and said casing in position relative to one another with said dispenser means aligned with one of said plurality of compartment portions, said dispenser means being movable through said second end of said casing to contact the analytical element in said aligned compartment portion to displace the analytical element through said first end of said casing.

12. The container of claim 11, wherein said casing includes a first sealing member at said first end and a second sealing member at said second end, said second sealing member being configured for penetration by said dispenser mechanism to displace the analytical element therein through said first sealing member while maintaining remaining ones of said plurality of compartments housing analytical elements in an airtight condition, wherein said second sealing member is arranged in non-overlapping relation to said plurality of detents in said second end of said casing.

13. The container of claim 11, wherein said dispenser means includes:

an actuator mounted along said base assembly outside said base assembly; and

a plunger in said base assembly 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 base assembly to a second position wherein said upper end extends into said aligned compartment portion to displace the analytical element in said aligned compartment portion through said first end of said casing.

14. The container of claim 11, wherein said locking means includes:

a locking member housed in a receptacle within said base assembly; and

a spring in said receptacle normally biasing said locking member in the direction of said longitudinal axis toward said second end of said casing to engage a corresponding one of said detents when said corresponding detent is aligned with said locking member.

15. The container of claim 11, wherein said locking means includes:

a first locking member housed in a first receptacle within said base assembly;

a first spring in said first receptacle normally biasing said first locking member in the direction of said longitudinal axis toward said second end of said casing;

a second locking member housed in a second receptacle within said base assembly; and

a second spring in said second receptacle normally biasing said second locking member in the direction of said longitudinal axis toward said second end of said casing, wherein said first and second locking members and said number of detents are arranged so that said first and second locking members engage respective ones of first and second detents located on generally opposite sides of said aligned compartment portion when said first and second detents are aligned with said first and second locking members.

16. The container of claim 15, wherein:

said base assembly includes a side wall extending around a 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 dispensing means include an actuator outside said cavity adjacent said slot, a connector extending through said slot to a plunger within said cavity, said plunger including an upper end and having a first position wherein said upper end is positioned in said cavity and said actuator is movable along said slot to displace said plunger to a second position wherein said upper end extends from said cavity through said second of said casing into said aligned compartment portion to displace said respective analytical element through said first end of said casing; and

said first and second locking members are located adjacent to and on generally opposite sides of said longitudinal slot.

17. A container, comprising:

a plurality of analytical elements;

a drum type casing extending along a longitudinal axis between a first end and an opposite second end, said casing including a plurality of compartment portions extending along said longitudinal axis between said first and second ends with each of the plurality of analytical elements positioned in a respective one of said plurality of compartment portions, said casing further including a number of detents radially spaced about said longitudinal axis that extend into said second end in the direction of said longitudinal axis;

a first sealing member engaged to said first end of said casing and a second sealing member engaged to said second end of said casing, said first and second sealing members sealing said plurality of analytical elements in said plurality of compartments;

a base assembly rotatably mounted to said second end of said casing with said base assembly and said casing rotatable relative to one another about said longitudinal axis to align a selected one of said compartment portions in a location relative to said base assembly, wherein said base assembly includes;

a locking mechanism with a locking member biased in the direction of said longitudinal axis toward said second end of said casing to normally engage at least one of said detents when said selected compartment portion is in said location relative to said base assembly, said locking member being biased to resist rotation of said casing relative to said base assembly until sufficient force is applied by rotating said casing relative to said base assembly about said longitudinal axis to overcome the bias of said locking member; and

a dispenser mechanism including a plunger movable through said second sealing member to contact the analytical element in said selected compartment portion and produce the analytical element from said selected compartment portion through said first sealing member.

18. The container of claim 17, wherein said second sealing member is arranged in non-overlapping relation to said number of detents of said casing.

19. The container of claim 17, wherein said locking mechanism includes:

a first locking member housed in a first receptacle within said base assembly;

a first spring in said first receptacle normally biasing said first locking member in the direction of said longitudinal axis toward said second end of said casing;

a second locking member housed in a second receptacle within said base assembly; and

a second spring in said second receptacle normally biasing said second locking member in the direction of said longitudinal axis toward said second end of said casing, wherein said first and second locking members and said number of detents are arranged so that said first and second locking members engage respective ones of first and second detents located on generally opposite sides of said aligned compartment when said first and second detents are aligned with said first and second locking members.

20. The container of claim 19, wherein:

said base assembly includes a body with a side wall extending around a 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 dispenser mechanism includes an actuator outside said cavity adjacent said slot, a connector extending through said slot to said plunger within said cavity, said plunger including an upper end and having a first position wherein said upper end is positioned in said cavity and said actuator is movable along said slot to displace said plunger to a second position wherein said upper end extends from said cavity through said second sealing member into said selected compartment portion of said casing; and

said first and second locking members are located adjacent to said longitudinal slot on generally opposite sides of said longitudinal slot.

21. The container of claim 17, wherein said base assembly includes a spindle extending from said body 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 about said spindle.

22. 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 and said second end including a receptacle extending across said first 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 casinos to said body while allowing said base assembly to rotate relative to said casing about said longitudinal axis to align said dispenser mechanism with a selected one of said plurality of compartment portions.

23. The assembly of claim 22, wherein said at least one tongue extends from said casing along said longitudinal axis of said container.

24. The assembly of claim 23, 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.

25. 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;

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 said dispenser mechanism with a selected one of said plurality of compartment portions.