# US 9,658,217 B2 · Measuring physical and biochemical parameters with mobile devices

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- Number: US 9,658,217 B2
- Document ID: US9658217B2
- Status: Granted
- Kind: B2
- Application number: 14/528,100
- Filed: 2014-10-30
- Published: 2015-08-20
- Granted: 2017-05-23
- Earliest claimed: 2014-02-17
- Assignees: Ixensor Co., Ltd.
- Applicants: iXensor Inc.
- Inventors: Yenyu Chen; Tungmeng Tsai; Chieh Hsiao Chen; Hungchih Wang; Yuwei Tang; Chiachun Hung; Chihchieh Wu
- Web page: https://patentgrep.com/patent/US9658217B2

## CPC

- G01N 33/525: {Multi-layer analytical elements}
- G01N 21/8483: {Investigating reagent band (test-element handling not specific to a test method G01N33/4875; analytical elements specific to chemical analysis of biological material G01N33/52; autometer with reagent band G01N35/04)}
- G01N 33/4875: {Details of handling test elements, e.g. dispensing or storage, not specific to a particular test method (test-elements per se B01L, automatic analysers G01N35/00, in-vivo analysis on the human body for medical diagnosis A61B)}
- H04B 1/3888: Arrangements for carrying or protecting transceivers
- H04M 1/185: {Improving the shock resistance of the housing, e.g. by increasing the rigidity}
- G06T 7/90: Determination of colour characteristics
- H04M 1/0254: {comprising one or a plurality of mechanically detachable modules}
- H04M 1/0264: {for a camera module assembly}
- H04M 1/21: Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
- H04M 2250/52: including functional features of a camera
- H04N 17/02: for colour television signals
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- H04B: TRANSMISSION
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A test strip module includes a case, a test strip in the case, and a position anchor extending down past a mating surface to a face of a mobile computing device. The position anchor has a shape matching a feature on the face of the mobile computing device.

## Claims

### Claim 1

A test strip module for testing a sample with a mobile computing device distinct and separate from the test strip module, the test strip module comprising:
a case comprising a top defining a sample channel between an exterior surface of the top and an interior surface of the top;
a test strip in the case;
a bottom cover closing an open bottom of the case, wherein the bottom cover defines:
a light port; and
a camera port opposite of the test strip, the camera port being laterally displaced from the light port;
a position anchor extending down past a mating surface defined by the case or the bottom cover; and
a fluid transfer film on the top abutting a sample collector defined by the exterior surface of the top and the sample channel;
wherein
the fluid transfer film abuts an open half of the sample collector and includes a hydrophilic layer adjacent to a bottom of the sample collector; and
the sample channel is between the hydrophilic layer and the test strip.

### Claim 2 (depends on 1)

The test strip module of claim 1, wherein:
the case comprises a first bottom surface;
the bottom cover comprises a second bottom surface; and
the mating surface is the first bottom surface or the second bottom surface.

### Claim 3 (depends on 2)

The test strip module of claim 2, wherein the position anchor extends down from the second bottom surface.

### Claim 4 (depends on 3)

The test strip module of claim 3, wherein the position anchor comprises a shape matching a recessed feature on the face of the mobile computing device.

### Claim 5 (depends on 4)

The test strip module of claim 4, wherein the recessed feature comprises an ear speaker hole and the mobile computing device comprises a mobile phone.

### Claim 6 (depends on 1)

The test strip module of claim 1, wherein the position anchor comprises a rectangular or an obround protrusion.

### Claim 7 (depends on 1)

The test strip module of claim 1, wherein:
the case comprises:
an inner compartment comprising a first open bottom; and
an outer compartment comprising a second open bottom and surrounding the inner compartment;
the test strip is located in the inner compartment, wherein the outer compartment shields the test strip from an ambient light.

### Claim 8 (depends on 1)

The test strip module of claim 1, further comprising a skirt around a lower periphery of the case, the skirt shielding the test strip from an ambient light.

### Claim 9 (depends on 8)

The test strip module of claim 8, wherein the skirt comprises a slide engaged to the case, the skirt being movable from a retracted position inside the case to an extended position outside of the case.

### Claim 10 (depends on 8)

The test strip module of claim 8, wherein the skirt is hinged to the case, the skirt being rotatable from an upright position against the case to a horizontal position.

### Claim 11 (depends on 8)

The test strip module of claim 8, wherein the position anchor protrudes down from the skirt.

### Claim 12 (depends on 1)

The test strip module of claim 1, wherein the mating surface is pliant.

### Claim 13 (depends on 1)

The test strip module of claim 1, wherein the mating surface comprises a roughness of 100 microns.

### Claim 14 (depends on 1)

The test strip module of claim 1, wherein the sample channel is sloped relative to the mating surface.

### Claim 15 (depends on 14)

The test strip module of claim 14, wherein the sample channel is oriented so a lower end of the sample channel is located in or proximate to a first end of the test strip module with the test strip and a camera port, and an upper end of the sample channel is located in or proximate to a second end of the test strip module with a light port.

### Claim 16 (depends on 1)

The test strip module of claim 1, wherein:
the test strip comprises a reaction area and a reservoir downstream from the reaction area to receive a part of the sample flowing past the reaction area; and
the case comprises a top defining an observation window opened to the reservoir.

### Claim 17 (depends on 1)

The test strip module of claim 1, wherein the case comprises multiple compartments with respective test strips and the case is slidably engaged with the bottom cover.
