Container containing reference solution

• US 9,475,050 B2
• Filed: 06/21/2010
• Issued: 10/25/2016
• Est. Priority Date: 06/20/2009
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Leichner, Wilhelm, List, Hans, Harttig, Herbert, Ahl, Axel, Sternberger, Christa
• Primary Examiner(s): EISEMAN, ADAM JARED
• Application Number:
  US12/819,852
• Publication Number:
  US 20110004077A1
• Time in Patent Office: 2,318 Days
• Field of Search: 401/126, 401/127, 401/129, 401/130, 401137-139, 401/187, 401/189, 401/198, 600/583, 600/584
• US Class Current: 1/1
• CPC Class Codes: B01L 2200/0684 Venting, avoiding backpressure, avoid gas bubbles
• CPC Class Codes: B01L 2200/148 Specific details about calibrations
• CPC Class Codes: B01L 2300/044 pierceable, e.g. films, membranes
• CPC Class Codes: B01L 2300/069 Absorbents; Gels to retain a fluid
• CPC Class Codes: B01L 3/523 with means for closing or opening

Abstract

The present disclosure provides a container containing reference solution for clinical chemistry, whereby the container includes a closure part-covered outlet at which reference solution can be removed by puncturing with a puncturing element. The disclosure further provides a wick that is soaked with the reference solution and arranged in the container to extend from the outlet and such that a majority of its length extends into an interior space of the container.

Claims

1. A container containing reference solution for clinical chemistry, including:

an outlet for extracting reference solution by puncturing with a puncturing element of a puncturing device;

a closure part covering the outlet;

a wick having a length, the wick being positioned in the container and extending from the outlet such that a majority of the length extends into an interior space of the container to contact reference solution contained in the interior space; and

a rigid molded wall that forms a stop that resists pressure exerted on the container by the puncturing device during extraction of a sample of the reference solution;

wherein the rigid molded wall forms a channel extending between the interior space and the outlet, the wick being secured to the channel.

2. A container according to claim 1, wherein the wall surrounds the wick and carries the closure part.

3. A container according to claim 1, wherein the wall is configured to withstand a press-against force of at least 3 N when the puncturing device engages the container during extraction of the sample without reference solution being forced from the outlet.

4. A container according to claim 1, wherein the closure part is connected to the container by a pre-determined breakage zone.

5. A container according to claim 1, further including a pressure compensation channel that is closed by the closure part and extends into the interior space adjacent to the wick.

6. A container according to claim 1, wherein the wick includes a fiber bundle.

7. A container according to claim 1, wherein a majority of the length of the wick touches against the channel.

8. A container according to claim 1, wherein the closure part is removable and the wick is positioned in the container to project from the container, when the closure part is removed, by a distance that is smaller than a width of the wick.

9. A container according to claim 1, wherein the wick includes fibers that are distributed over a cross-section of the wick.

10. A container according to claim 1, wherein the wick immerses into the reference solution, when the outlet faces upwardly.

11. A container according to claim 1, wherein one end of the wick is positioned at the outlet.

12. A container containing reference solution for clinical chemistry, including:

a wick disposed within an interior space of the container in contact with the reference solution contained in the interior space;

a container wall configured to be pierced by a puncturing device upon extraction of the reference solution; and

a ring-shaped disc inside the container that surrounds the wick and supports the container wall thereby forming a stop that resists pressure exerted on the container wall by the puncturing device during extraction of the reference solution.

13. A container containing reference solution for clinical chemistry, including:

an outlet for extracting reference solution by puncturing with a puncturing element of a puncturing device;

a closure part covering the outlet;

a wick having a length, the wick being positioned in the container and extending from the outlet; and

a container wall that forms a stop that, without deforming, resists pressure exerted on the container by the puncturing device during extraction of a sample of the reference solution;

wherein the container wall forms a channel extending between the interior space and the outlet, a majority of the length of the wick being in contact with the channel.

14. A container containing reference solution for clinical chemistry, including:

an outlet for extracting reference solution by puncturing with a puncturing element of a puncturing device;

a closure part covering the outlet;

a wick having a length, the wick being positioned in the container and extending from the outlet such that a majority of the length extends into an interior space of the container to contact reference solution contained in the interior space;

a container wall that forms a stop configured to resist pressure exerted on the container by the puncturing device during extraction of a sample of the reference solution; and

a foil base connected to the container wall and spanning an opening of the container wall.

15. A container containing reference solution for clinical chemistry, including:

an outlet for extracting reference solution by puncturing with a puncturing element of a puncturing device;

a closure part covering the outlet;

a wick having a length, the wick being positioned in the container and extending from the outlet; and

a container wall configured to withstand a press-against force of at least 3 N when the puncturing device engages the container during extraction of the sample without reference solution being forced from the outlet;

wherein the container wall forms a channel extending between the interior space and the outlet, a majority of the length of the wick being in contact with the channel.