US20070080093A1 - Vial for test strips - Google Patents

Abstract

A diagnostic test strip vial has a container, a lid, and a plurality of diagnostic test strips. The container has a generally annular wall that terminates at a base and at an open mouth at an end that is opposite the base. The annular wall is cut at an oblique angle creating a wall that has a high side and a low side at the open mouth. The low side of the annular wall of the container is shorter in length than a diagnostic test strip that enclosed in the vial when the lid is closed with the container.

Description

BACKGROUND OF THE INVENTION
• Test strips for medical diagnostic purposes are typically supplied and carried in vials from which they are removed as required by a user, for example, when a diagnostic test is to be carried out. Typical types of test strips include those used for measuring analyte concentrations, such as glucose, in a human fluid, such as blood. Test strip vials should be user-friendly and inexpensive to make.
SUMMARY OF THE INVENTION
• The present invention provides a vial that has a generally annular open mouthed container that is cut at an oblique angle. At the open mouth, the wall of the generally annular container has a high side and a low side, formed by the oblique cut, where the low side is shorter in length than a diagnostic test strip allowing a user to easily manipulate individual test strips contained in the container. In one embodiment, the present invention provides a diagnostic test strip vial having a container, a lid, and a plurality of diagnostic test strips: (i) wherein the container comprises a generally annular wall terminating at a base and at an open mouth at an end opposite the base, wherein the annular wall is cut at an oblique angle whereby the wall has a high side and a low side at the open mouth, wherein the low side is shorter in length than a diagnostic test strip, (ii) wherein the test strips are disposed in the container, and (iii) wherein when the lid is closed with the container, the test strips are enclosed in the vial. The vial may also optionally comprise a desiccant.
BRIEF DESCRIPTION OF THE INVENTION
• FIG. 1 is an isometric view of a vial in accordance with the present invention.
• FIG. 2A is a side elevation view of a vial in accordance with the present invention.
• FIG. 2B is a side elevation view of a vial in accordance with the present invention.
• FIG. 2C is a side elevation view of a vial in accordance with the present invention.
• FIG. 3 is a side elevation view of a vial in accordance with the present invention.
• FIG. 4 is a side elevation view of a vial in accordance with the present invention.
• FIG. 5 is a side elevation view of a vial in accordance with the present invention.
• FIG. 6 is a side elevation view of a vial in accordance with the present invention.
• FIG. 7A is a front elevation view of a vial in accordance with the present invention.
• FIG. 7B is an isometric vial of a vial in accordance with the present invention.
• FIG. 7C is an isometric vial of a vial in accordance with the present invention.
• FIG. 8 is a side elevation view of a vial in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION
• It is often an advantage in the analyte detection industry to provide vials, test strips, and diagnostic meters that are as small as possible to allow a user to carry them with the utmost ease. However, the user of such items may be arthritic or have some other physical impairment which would hinder their ability to remove a single diagnostic test strip from a small vial. This physically impaired user may find it easier to dump the strips contained in the vial into their hand or onto another potentially contaminated surface in order to retrieve a single strip for performing a diagnostic test. Subsequently, the user may return potentially contaminated strips to the vial for storage and for future tests.
• The present invention provides a user-friendly medical diagnostic test strip vial that allows a user greater access to the test strips contained in it. The vial has a generally annular open mouthed container that is cut at an oblique angle. At the open mouth, the wall of the generally annular container has a high side and a low side, formed by the oblique cut, where the low side is shorter in length than a diagnostic test strip thereby allowing a user to easily manipulate individual test strips therein contained. In one embodiment the diagnostic test strip vial comprises a container, a lid, and a plurality of diagnostic test strips: (i) wherein the container comprises a generally annular wall terminating at a base and at an open mouth at an end opposite the base, wherein the annular wall is cut at an oblique angle whereby the wall has a high side and a low side at the open mouth, wherein the low side is shorter in length than a diagnostic test strip, (ii) wherein the test strips are disposed in the container, and (iii) wherein when the lid is closed with the container, the test strips are enclosed in the vial. The vial may also optionally comprise a desiccant (e.g. a silica gel or a molecular sieve material such as that made by CSP Technologies, Inc.).
• FIG. 1 shows an isometric view of an exemplary embodiment of avial01 of the present invention with thelid05 partially removed. Thetest strips07 are disposed in acontainer03 that has anannular wall09 terminating at abase11 and at anopen mouth13 having ahigh side15 and alow side17 that is shorter in length than thetest strips07 therein contained. Thelid05 is sized to receive theannular wall09 of thecontainer03 that has a sealingridge19 disposed on its outer periphery for sealing thevial01. SimplifiedFIGS. 2A through 8 are provided to detail other embodiments of the vial of the present invention.
• FIG. 2A depicts an embodiment of the present invention where a diagnostictest strip vial101 has acontainer103, alid105, and a plurality ofdiagnostic test strips107. Thecontainer103 has a generallyannular wall109 terminating at abase111 and at anopen mouth113 at an end opposite thebase111. Theannular wall109 is cut at anoblique angle114, with respect to the axis of theannular wall109, whereby thewall109 has ahigh side115 and alow side117 at theopen mouth113. Thelow side117 is shorter in length than adiagnostic test strip107 thereby allowing easy manipulation ofindividual test strips107 contained in thecontainer103.FIG. 2A showsvial101 wherein thelid105 is sized to slidably receive theannular wall109 of thecontainer103.FIG. 2A also shows an optional embodiment of the present invention wherein thevial101 further comprises aseal119. Hereseal119 is a raisedcircular ridge119 disposed about the outer periphery ofwall109.Lid105 may optionally have a correspondingcircular depression121, on its inner surface, that receivesraised ridge119 so that raisedridge119 may engage thecorresponding depression121 in a snap fit engagement.
• The term “oblique angle” as it is used in the present invention is understood to mean an angle that is not 90° with respect to the axis of the annular wall of the container. InFIG. 2A, theannular wall109 is cut at thisoblique angle114 so that theannular wall109 has ahigh side115 and alow side117 at theopen mouth113 of thecontainer103. In a preferred embodiment theoblique angle114 is in the range of between 10° and 80°, more preferably between 30° and 60°, and still more preferably between 40° and 50° with respect to the axis of the annular wall of the container.
• The oblique cut of the annular wall preferably extends through the entire wall. However in another embodiment the annular wall is partially cut at the oblique angle.FIG. 2B shows an embodiment of the present invention where a diagnostictest strip vial1101 has acontainer1103, alid1105, and a plurality ofdiagnostic test strips1107. Thecontainer1103 has a generallyannular wall1109 terminating at abase1111 and at anopen mouth1113 at an end opposite thebase1111. Here,annular wall1109 is partially cut at anoblique angle1114, with respect to the axis of theannular wall1109, whereby thewall1109 has ahigh side1115 and a low side1117 at theopen mouth1113. The low side1117 is shorter in length than adiagnostic test strip1107 thereby allowing easy manipulation ofindividual test strips1107 contained in thevial1103. In the present embodiment wherein theannular wall1109 is partially cut at anoblique angle1114 it is preferred that theannular wall1109 is cut so that at least 25%, more preferably at least 50%, for example 75% of the circumference of theannular wall1109 at itshigh side1115 is removed by the oblique cut.
• The low side of the annular wall of the container is shorter in length, from the base to the open mouth, than a diagnostic test strip contained in the vial. In a preferred embodiment the height of the low side of the annular wall, when measured from the base, is greater than the major diameter of the annular wall and more preferably greater than twice the major diameter of the annular wall. When the oblique angle is small, for example in a range of between 10° and 30° it is preferred that the height of the low side of the annular wall be at least twice, and more preferably more than triple, the major diameter of the annular wall so as to prevent test strips from unwantedly tipping out of an open container. In another embodiment it is preferred that the height of the low side of the annular wall be between 50% and 80%, and more preferably between 60% and 75% of the length of a diagnostic test strip contained in the vial.
• The term “slidably receive” is used in reference relative to the sizing of the annular wall of the container and the lid. As used in the specification and claims of this application “slidably receive” means that the container fits within the lid or vice versa and is removable and replaceable by the user. In some embodiments, the lid fits onto the container so that the fit between the lid and the container is sufficiently tight to prevent a test strip from fitting between the lid and the container. In a preferred embodiment the lid slides onto or into the container with minimal force, for example the force applied by one hand of the user, and when the lid is closed to the container the lid remains closed to the container when the vial is inverted and the lid is subjected to the force of gravity. In some embodiments, for example in the absence of a seal as depicted inFIG. 2B, the fit between the lid and the container may be sufficiently tight so as to ensure a stable humidity environment inside the vial.
• FIG. 2C shows a further embodiment of the invention. In this figure,vial201 has alid205 that is sized to slidably receive theannular wall209 of thecontainer203.FIG. 2C also shows an embodiment of the present invention wherein the vial further comprises aseal219.Seal219 is a raisedcircular ridge219 disposed on the inside oflid205. The outer surface ofannular wall209 ofcontainer203 may optionally have a correspondingcircular depression221 that receives raisedcircular ridge219 so that raisedridge219 may engage thecorresponding depression221 in a snap fit engagement.
• The term “snap fit engagement” is herein understood to mean the sealing interaction between the raised sealing ridge and the corresponding depression. For example, in the embodiments where a raised sealing ridge is disposed on the inside of the lid and a corresponding depression is disposed on the outer surface of the annular wall of the container and where the lid is being closed with the container, the raised sealing ridge of the lid slides along the annular wall of the container until it reaches the corresponding depression where it is received. In other embodiments where a raised sealing ridge is disposed at the open mouth of the container and where the lid has a corresponding depression disposed on its inner side, the lid snaps directly onto the container and the contents of the vial are sealed from the surrounding atmosphere. In a preferred embodiment when the raised ridge is received by the corresponding depression a noise is made by the interaction, for example a “click”, to notify the user that the vial is sealed.
• In the embodiments shown inFIGS. 2A, 2B, and2C theannular wall109,1109,209 is smooth on the inside, but may havestep region1009 on the outside so that the combination of container and lid is smooth. This step however is optional, and sealing may occur through the interaction of theridge119,219 anddepression121,221 as shown inFIGS. 1A and 2.
• FIG. 3 depicts another embodiment of the vial of the present invention. In this Figure, theannular wall309 ofcontainer303 ofvial301 is sized to slidably receivelid305.FIG. 3 also shows an optional embodiment of the present invention wherein thevial301 further comprises aseal319. Here seal319 is a raisedcircular ridge319 disposed on the outside oflid305. The inner surface ofannular wall309 ofcontainer303 may optionally have a correspondingcircular depression321 that receives raisedcircular ridge319 so that raisedridge319 may engage thecorresponding depression321 in a snap fit engagement.
• FIG. 4 depicts yet another embodiment of the vial of the present invention. In this Figure, theannular wall409 ofcontainer403 ofvial401 is sized to slidably receivelid405.FIG. 4 also shows an optional embodiment of the present invention wherein the vial further comprises aseal419. Here seal419 is a raisedcircular ridge419 disposed on the inner surface ofwall409. The outer surface oflid405 may optionally have a correspondingcircular depression421 that receives raisedcircular ridge419 so that raisedridge419 may engage thecorresponding depression421 in a snap fit engagement.
• FIG. 5 depicts another embodiment for avial501 of the present invention wherelid505 is pivotally connected to thecontainer503. Thepivotal connection504 here is livinghinge504. Thisliving hinge504 may be made of a thermoplastic resin. Thepivotal connection504 may also be a mechanical hinge or other type of pivotal connection that is sized so that thelid505 may be bent back away fromcontainer503.Lid505 also has athumb lip506 to give a user the ability to easily remove the lid from thecontainer503 thereby opening thevial501. In the present Figure althoughlid505 has desiccant508 disposed therein, thedesiccant508 may also or alternatively be disposed incontainer503.
• It is often preferred that medical diagnostic test strips be stored in a stable environment where there is reduced moisture as compared to the normal atmosphere. To maintain this reduced moisture environment it is often desired that the space within the container is sealed from the outside atmosphere using an “air-tight” seal that seals the lid to the container. In addition to sealing the container from the surrounding environment a desiccant may be employed as depicted inFIG. 5. The desiccant may be located in the container, in the lid, or in both the container and lid such that it is in contact with the environment within the vial. Non-limiting examples of suitable desiccants include silica gel and molecular sieve material produced by CSP Technologies, Inc.
• In accordance with the present invention, types of seals are not limited and may include gaskets, raised sealing ridges, and stoppers among other seals. In a preferred embodiment, the vial comprises a seal disposed on the lid, the container, or both. In a further embodiment, this seal is a raised sealing ridge disposed on the lid, the container, or both and optionally further comprises a corresponding depression located on the opposite surface for snap fit engagement with the sealing ridge where the raised ridge snaps into the corresponding depression when the lid is closed with the container. The raised sealing ridge and the optional corresponding depression may be circular or oval in nature depending on the shape of the annular wall.
• A circular sealing ridge is preferred in some embodiments because it provides a more rigid seal as compared to an oval sealing ridge and is able to better withstand deformation pressures thereby providing a better seal. As depicted inFIGS. 6, 7, and8 in preferred embodiments the raised sealing ridge is circular and may be employed even if the annular wall of the container is oval by disposing the ridge at an oblique angle with respect to the axis of the annular wall.
• FIG. 6 depicts avial601 of the present invention wherein theannular wall609 of thecontainer603 is oval or elliptical shape. A raised sealingridge619 is disposed at anoblique angle614, with respect to the axis of theannular wall609, on theannular wall609. Theoblique angle614 is selected so that raised sealingridge619 is circular. An optional correspondingcircular depression621 disposed atoblique angle614 may also be present on the inner surface of the lid wherein the raisedcircular sealing ridge619 may engage the correspondingcircular depression621 for snap fit engagement.Container603 also hasstep region1009 on the outside of itsannular wall609 so that the combination ofcontainer603 and lid is smooth. Thisstep1009 however is optional.
• FIG. 7A shows a front view ofvial701 having alid705 and acontainer703 with an ovalannular wall709.Container703 comprises a circular raised sealingridge719 disposed at an oblique angle with respect to the axis of theannular wall709.FIGS. 7B and 7C show isometric views ofvial701 shown inFIG. 7A.FIG. 8 shows a side elevation view ofclosed vial801 with ovalannular wall809.Container803 has a circular sealing ridge that is in sealing engagement withlid805.
• The generally annular wall of the container may be circular, elliptical or oval in shape. It is sometimes preferred that the overall vial shape and also the shape of the annular wall be oval in nature so that the vial may easily fit into a carrying case for medical supplies to be carried by a user. It is also often preferred that medical test strip vials be camouflaged or appear to be something other than what they are. For example, a user may desire to have the test strip vial be in the shape of lipstick, lip balm, eye liner, a pen, or some other indiscreet object in order to downplay what is therein contained. Thus variations of the shape of the vial and its lid and/or container of the present invention are contemplated herein and do not depart from the scope of the present invention.
• The material and methods used to make the vials of the present invention are not particularly limited. However, for ease of manufacture and the costs associated therewith, injection molded thermoplastic resin is often preferred.

Claims (21)

1. A diagnostic test strip vial comprising a container, a lid, and a plurality of diagnostic test strips:

(i) wherein the container comprises a generally annular wall terminating at a base and at an open mouth at an end opposite the base, wherein the annular wall is cut at an oblique angle whereby the wall has a high side and a low side at the open mouth, wherein the low side is shorter in length than a diagnostic test strip,

(ii) wherein the test strips are disposed in the container, and

(iii) wherein when the lid is closed with the container, the test strips are enclosed in the vial.

2. The vial ofclaim 1, further comprising a seal disposed on the lid, the container, or both.

3. The vial ofclaim 2, wherein the lid is sized to slidably receive the annular wall of the container and wherein the seal comprises a raised circular ridge on the outer side of the annular wall of the container.

4. The vial ofclaim 3, wherein the lid has a depression on the inner side of the lid for snap fit engagement with the raised circular ridge.

5. The vial ofclaim 2, wherein the container is sized to slidably receive the lid and wherein the seal is a raised circular ridge on the inner side of the annular wall of the container.

6. The vial ofclaim 5, wherein the lid has a depression on the outer side of the lid for snap fit engagement with the raised circular ridge.

7. The vial ofclaim 2, wherein the lid is sized to slidably receive the container and wherein the seal is a circular raised ridge on the inner side of the lid.

8. The vial ofclaim 7, wherein the container has a depression on the outer side of the annular wall of the container for snap fit engagement with the raised circular ridge.

9. The vial ofclaim 2, wherein the container is sized to slidably receive the lid and wherein the seal is a raised circular ridge on the outer side of the lid.

10. The vial ofclaim 9, wherein the container has a corresponding depression on the inner side of the annular wall for snap fit engagement with the raised circular ridge.

11. The vial ofclaim 1, further comprising a desiccant disposed in the lid, the container, or both the lid and the container.

12. The vial ofclaim 1, wherein the lid is pivotally connected to the container.

13. The vial ofclaim 12, wherein the lid is connected to the container by a living hinge.

14. The vial ofclaim 1, wherein the annular wall of the container is oval.

15. The vial ofclaim 1, wherein the lid further comprises a thumb lip.

16. A diagnostic test strip vial comprising a container, a lid, a circular snap fit seal, a desiccant, and a plurality of diagnostic test strips:

(i) wherein the container comprises a generally oval wall terminating at a base and at an open mouth at an end opposite the base, wherein the oval wall is cut at an oblique angle whereby the wall has a high side and a low side at the open mouth, wherein the low side is shorter in length than a diagnostic test strip,

(ii) the circular snap fit seal comprises a raised circular ridge on the oval wall of the container or lid and a corresponding depression on the oval wall or lid, wherein when the lid is engaged with the container, the circular snap fit seal seals the lid to the container by the interaction of the raised ridge on the container or lid and the corresponding depression,

(iii) wherein the test strips are disposed in the container, and

(iv) wherein when the lid is closed with the container, the test strips are enclosed in the vial.

17. The vial ofclaim 16, wherein the lid is sized to slidably receive the container and wherein the raised circular ridge is on the outer side of the oval wall of the container and the corresponding depression is on the inner side of the lid.

18. The vial ofclaim 16, wherein the container is sized to slidably receive the lid and wherein the raised circular ridge is on the inner side of the oval wall of the container and the corresponding depression is on the outer side of the lid.

19. The vial ofclaim 16, wherein the lid is sized to slidably receive the container and wherein the raised circular ridge on the inner side of the lid and the corresponding depression is on the outer side of the oval wall of the container.

20. The vial ofclaim 16, wherein the container is sized to slidably receive the lid and wherein the raised circular ridge is on the outer side of the lid and the corresponding depression is on the inner side of the oval wall.

21. The vial ofclaim 16, wherein the lid is pivotally connected to the container by a living hinge.

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