# US 8,541,241 B2 · Fluid-specimen collecting and testing device and method for recording chromatographic assay test results

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- Number: US 8,541,241 B2
- Document ID: US8541241B2
- Status: Granted
- Kind: B2
- Application number: 11/542,731
- Filed: 2006-10-03
- Published: 2007-02-01
- Granted: 2013-09-24
- Earliest claimed: 2001-05-21
- Assignees: Ameditech, Inc.
- Applicants: John Wu; Jinying Liu; Chongyang Zhao
- Inventors: John Wu; Jinying Liu; Chongyang Zhao
- Web page: https://patentgrep.com/patent/US8541241B2

## CPC

- B01L 3/502: {with fluid transport, e.g. in multi-compartment structures}
- B01L 3/508: {Rigid containers without fluid transport within}
- B01L 3/50825: {Closing or opening means, corks, bungs}
- B01L 2200/141: Preventing contamination, tampering
- B01L 2300/042: Caps; Plugs
- B01L 2300/0663: Whole sensors
- B01L 2300/0825: Test strips
- B01L 2300/0858: Side walls
- B01L 2400/0406: capillary forces
- B01L: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE

## Abstract

A fluid specimen testing device having a removable lid which carries at least one testing strip behind a transparent top viewing window. Testing is initiated by tilting the device into a stable sideways orientation to allow the specimen to contact the sampling pad portion of the strip. The device is adapted to provide stability in the upright, tilted and inverted orientations. A roll-inhibiting feature also acts as an indicator for proper roll positioning in the tilted configuration. The strips are also oriented in the lid so that they are substantially vertical when the device is in the tilted position thereby enhancing a condition for proper capillarity. The strip is carried close to the upper surface which allows it to be copied on a flat glass copier providing for more objective recordation of the test results.

## Claims

### Claim 1

A method for conducting a test of a liquid specimen, the method comprising:
introducing the liquid specimen into a test device, the test device comprising an opening for receiving the liquid specimen and a lid for sealing the opening, the lid comprising:
at least one test strip carried on the lid;
an aperture exposing a portion of the at least one strip;
an arcuate peripheral flange; and,
roll-inhibiting ears extending from the flange;
sealing the opening with the lid; and
placing the test device in a stable tilted orientation roll-inhibitingly supported by the ears, thereby allowing an amount of said specimen to contact the at least one test strip through the aperture.

### Claim 2 (depends on 1)

The method of claim 1, further comprising maintaining the at least one test strip in a substantially vertical orientation while the specimen test is conducted.

### Claim 3 (depends on 1)

The method of claim 1, further comprising maintaining the test device in the stable tilted orientation using a roll-inhibiting indentation.

### Claim 4 (depends on 1)

The method of claim 1, further comprising maintaining the test device in the stable tilted orientation using roll-inhibiting ears.

### Claim 5 (depends on 1)

The method of claim 1, further comprising viewing the at least one test strip while the test device is in the stable tilted orientation.

### Claim 6 (depends on 1)

The method of claim 1, the lid further comprising a transparent viewing window for viewing the at least one test strip.

### Claim 7 (depends on 6)

The method of claim 6, wherein the at least one test strip is located adjacent to the transparent viewing window.

### Claim 8 (depends on 7)

The method of claim 7, wherein the at least one test strip is located within at least one channel, the at least one channel being located on an interior surface of the lid.

### Claim 9 (depends on 8)

The method of claim 8, wherein the at least one channel further comprises the aperture.

### Claim 10 (depends on 9)

The method of claim 9, wherein the portion of the at least one test strip extends through the aperture.

### Claim 11 (depends on 10)

The method of claim 10, further comprising allowing an amount of said specimen to contact the at least one test strip through the aperture.

### Claim 12 (depends on 1)

The method of claim 1, wherein the at least one test strip is visible while the test device is in the stable tilted orientation.