Perforated diagnostic device

• US 5,413,761 A
• Filed: 06/09/1994
• Issued: 05/09/1995
• Est. Priority Date: 06/09/1994
• Status: Expired due to Fees

• Current Assignee: Verve LLC
• Original Assignee: Dolores P. Dulaney
• Inventors: Dulaney, Dolores P.
• Primary Examiner(s): Redding, David A.
• Application Number:
  US08/257,291
• Time in Patent Office: 334 Days
• Field of Search: 422/56, 422/58, 422/61, 422/87, 436/44, 436/46, 436/95, 436/169, 436/805, 436/810, 435/4, 435/14, 435/805
• US Class Current: 422/401
• CPC Class Codes: G01N 33/521 Single-layer analytical elements
• CPC Class Codes: G01N 33/523 the element being adapted for a specific analyte
• CPC Class Codes: G01N 33/66 involving blood sugars, e.g. galactose
• CPC Class Codes: Y10S 435/805 Test papers
• CPC Class Codes: Y10S 436/81 Tube, bottle, or dipstick
• CPC Class Codes: Y10T 436/110833 Utilizing a moving indicator strip or tape
• CPC Class Codes: Y10T 436/112499 with sample on test slide

Abstract

A diagnostic device in the form of a blood glucose monitoring strip of the dip-and-read variety, and which has a first, outer test area which is chemically identical with a second, interior test area. A blood sample is tested in the first area. The first area is torn off and discarded. Then, another, similar test is conducted employing the remaining, second, interior test area. A line of perforation divides the first and second areas. Notches may be defined in the outer ends of both test areas to facilitate reading of the blood impregnated samples with the use of a suitable photometric machine, for example.

Claims

1. A diagnostic strip device for testing for the presence of predetermined constituents in more than one sample of body fluids, comprising:

a spine making up the major portion of said diagnostic device, said spine having a first end and a second, outer end, said spine having a longitudinal axis passing through said first end, and said second, outer end;

a finger grasping portion defined at said first end;

a first testing zone located along said longitudinal axis of said spine at said second outer end, said first testing zone having predetermined chemical constituents for the testing of the presence of predetermined constituents in a sample of body fluid;

a second testing zone located along said longitudinal axis of said spine and adjoining said first testing zone and having a predetermined chemical constituents identical to those of said first testing zone, for the testing of the presence of predetermined constituents in another sample of body fluid; and

means defining a line of separation between said first and second zones, said means defining a line of separation bisecting said longitudinal axis of said spine, whereby after use of said first zone, the same may be separated from said second zone, whereupon a second test may be conducted with the use of said second zone and another sample of body fluid.

2. The invention as defined in claim 1, wherein said line of separation comprises means defining a line of perforation between said first and second zones, whereby said first zone may be torn from said second zone.

3. The invention as defined in claim 1, wherein said first and second zones are of identical widths, said first zone having a predetermined length shorter than the length of said second zone.

4. The invention as defined in claim 1 wherein each of said zones include absorbent paper means for receiving a sample of body fluid.

5. The invention as defined in claim 4 wherein each zone further comprises means defining a sample receiving orifice therethrough, said absorbent paper means being located beneath said orifice.

6. The invention as defined in claim 1, wherein said first test zone further comprises a notch formed in an edge thereof, and wherein said second test zone further comprises a notch formed in an area selected from the group consisting of an edge thereof and along said means defining a line of separation between said first and second zones.

7. A method of serially testing and monitoring blood glucose levels comprising the steps of:

a. providing a testing strip having side by side arranged, outer and inner, chemically identical testing areas therewithin;

b. depositing a first blood sample on the outer test area and determining the amount of glucose therein;

c. separating the outer test area from the inner test area and discarding the same; and

d. conducting a second, separate blood glucose level test by depositing another blood sample on the inner test area and determining the amount of glucose therein.