Specimen test slide and method of testing for fecal occult blood

• US 5,106,582 A
• Filed: 12/18/1990
• Issued: 04/21/1992
• Est. Priority Date: 12/18/1990
• Status: Expired due to Term

• Current Assignee: Smithkline Diagnostics, Inc. (GSK plc)
• Original Assignee: Smithkline Diagnostics, Inc. (GSK plc)
• Inventors: Baker, Josefina T.
• Primary Examiner(s): Hill, Jr., Robert J.
• Application Number:
  US07/630,453
• Time in Patent Office: 490 Days
• Field of Search: 422/56-58, 422/61, 436/66, 436/169
• US Class Current: 422/408
• CPC Class Codes: B01L 3/5055 Hinged, e.g. opposable surfaces
• CPC Class Codes: G01N 33/528 Atypical element structures, e.g. gloves, rods, tampons, toilet paper
• CPC Class Codes: G01N 33/726 Devices

Abstract

A specimen slide in accordance with the present invention comprises a front panel including a test material placement side and a portion of a test sheet, the test material placement side including at least one aperture which is configured to accept a test sample through the aperture onto the test sheet, and a back panel including a developing side through which the opposite side of the test sheet is exposed. An indicating means is located on the developing side portion of the test sheet within proximity to, but not directly on, the portion of the test sheet directly opposite to the aperture.

Claims

1. A specimen slide comprising:

(a) a front panel including an aperture said aperture having a width, a height, an outer edge and an inner edge;

(b) a back panel including a flap means opposite to said aperture;

(c) a sheet carried between said front and said back panel and positioned for receiving a specimen through said aperture;

(d) a cover adapted to overlie and close said aperture; and

(e) means for directing placement of a solution onto an area of said sheet on a back panel side of said slide opposite to that of said aperture, said directing means being located on said sheet between about 1.5 and about 2.5 times the width of said aperture from the outer edge thereof.

2. The specimen slide of claim 1 wherein the width of said aperture is between about 0.25 cm and about 1.00 cm.

3. The specimen slide of claim 2 wherein the height of said aperture is about 4.0 times the width.

4. The specimen slide of claim 1 wherein said width is about 0.50 cm.

5. The specimen slide of claim 1 wherein the height of said aperture is between about 5.0 times and about 1.5 times the width.

6. The specimen slide of claim 1 wherein said aperture has a letter C configuration.

7. A specimen slide comprising:

(a) a front panel including an aperture said aperture having a width, a height, an outer edge and an inner edge;

(b) a back panel including a flap means opposite to said aperture;

(c) a sheet carried between said front and said back panel and positioned for receiving a specimen through said aperture;

(d) a cover adapted to overlie and close said aperture; and

(e) means for directing placement of a solution onto an area of said sheet on a back panel side of said slide opposite to that of said aperture, said directing means being located on said sheet about 2.00 times the width of said aperture from the outer edge thereof.

8. The specimen slide of claim 7 wherein said width is about 0.50 cm.

9. A specimen slide comprising:

(a) a front panel including at least two apertures said apertures having a width, a height, an outer edge and an inner edge where the inner edges of each aperture are substantially non-parallel with each other;

(b) a back panel including flap means opposite to said apertures;

(c) a sheet carried between said front panel and said back panel and positioned for receiving a specimen through said apertures;

(d) a cover adapted to overlie and close said apertures; and

wherein the distance between the outer edge of a first aperture and the outer edge of another aperture is between about 3.0 times and about 5.0 times the width of said first aperture.

10. The specimen slide of claim 9 further comprising means for directing placement of solution onto the sheet on the back panel side of the slide, said means being located on said sheet opposite to said apertures at an approximate midpoint between the first aperture and the other aperture.

11. The specimen slide of claim 9 wherein the width of said aperture is between about 0.25 cm and about 1.00 cm.

12. The specimen slide of claim 9 wherein the width of said apertures is about 0.50 cm.

13. A specimen slide comprising:

(a) a front panel including at least two apertures said apertures having a width, a height, an outer edge and an inner edge where the inner edges of the apertures are substantially non-parallel with each other;

(b) a back panel including flap means opposite to said apertures;

(c) a sheet carried between said front panel and said back panel and positioned for receiving a specimen through said apertures;

(d) a cover adapted to overlie and close said apertures; and

wherein the distance between the outer edge of a first aperture and the outer edge of another aperture is about 4.0 times the width of said first aperture.

14. The specimen slide of claim 13 further comprising means for directing placement of solution onto the sheet on the back panel side of the slide, said means being located on said sheet opposite to said apertures at an approximate midpoint between the first aperture and the other aperture.

15. The specimen slide of claim 13 wherein the width of said apertures is between about 0.25 cm and about 1.00 cm.

16. The specimen slide of claim 13 wherein the width of said apertures is about 0.50 cm.

17. A specimen slide comprising:

(a) a front panel including an aperture having a width and an outer edge;

(b) a sheet carried by said front panel and positioned for receiving a specimen through said aperture; and

(c) means for directing placement of a solution onto an area of said sheet on a back panel side of said slide opposite to that of said aperture, said directing means being located on said sheet between about 1.5 and about 2.5 times the width of said aperture from the outer edge thereof.

18. The specimen slide of claim 17 wherein the width of said aperture is between about 0.25 cm and about 1.00 cm.

19. The specimen slide of claim 17 wherein said width is about 0.50 cm.

20. The specimen slide of claim 17 wherein the height of said aperture is between about 5.0 times and about 1.5 times the width.

21. The specimen slide of claim 17 wherein said aperture has a letter C configuration.

22. A specimen slide comprising:

(a) a specimen receiving sheet;

(b) an aperture abutting a sample receiving side of the sheet said aperture having a defined width and an outer edge; and

(c) means for directing placement of a solution within proximity to an area on said sheet, said area being located between about 1.5 and about 2.5 times the width of said aperture from the outer edge of said aperture.

23. A specimen slide comprising:

(a) a front panel including two apertures, said apertures having substantially the same letter C configuration, each aperture defined by a width, a height, an outer edge and an inner edge;

(b) a back panel including a flap means opposite to said apertures;

(c) a sheet carried between said front and said back panel and positioned for receiving a specimen through said apertures;

(d) a cover adapted to overlie and close said apertures; and

(e) means for directing placement of a solution onto an area of said sheet on a back panel side of said slide opposite to that of said apertures, said directing means being located on said sheet about 2.0 times the width of said apertures from the outer edges thereof,

wherein the width of each aperture is about 0.50 cm.

24. A method for developing a specimen slide comprising a specimen receiving sheet and an aperture abutting a sample-receiving side of the sheet, said aperture having a defined width and an outer edge, the method comprising the.. step of placing a developing solution onto an area of said sheet opposite to the sample-receiving side of the sheet, said area being located between about 1.5 and about 2.5 times the width of said aperture from the outer edge of said aperture.