CIRCUIT BOARD FOR BODY FLUID COLLECTION, AND BIOSENSOR

• US 20100331729A1
• Filed: 01/21/2009
• Published: 12/30/2010
• Est. Priority Date: 03/21/2008
• Status: Abandoned Application

• Current Assignee: Nitto Denko Corporation
• Original Assignee: Nitto Denko Corporation
• Inventors: Naito, Toshiki, Ohsawa, Tetsuya
• Application Number:
  US12/735,923
• Publication Number:
  US 20100331729A1
• Time in Patent Office: Days
• US Class Current: 600/583
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157 disposable multilayered or laminated electrodes G01N27/307; details of handling chemical test elements G01N33/4875
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150282 for piercing elements, e.g. blade, lancet, canula, needle
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150427 Specific tip design, e.g. for improved penetration characteristics
• CPC Class Codes: A61B 5/150435 Specific design of proximal end
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/15186 Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
• CPC Class Codes: H05K 1/118 specially for flexible printed circuits, e.g. using folded portions

Abstract

A circuit board for body fluid collection include a first substrate including a puncture needle; a second substrate disposed at an upstream side of the first substrate in a direction of puncturing with the puncture needle with a space provided therebetween; a flexible insulation layer that extends between the first substrate and the second substrate; and a conductive pattern provided on the flexible insulation layer, the conductive pattern integrally including an electrode, a terminal, and a wiring that electrically connects the electrode and the terminal.

Claims

1. A circuit board for body fluid collection comprising:

a first substrate including a puncture needle,

a second substrate that is disposed at an upstream side of the first substrate in a direction of puncturing with the puncture needle with a space provided therebetween,

a flexible insulation layer that extends between the first substrate and the second substrate, and

a conductive pattern provided on the flexible insulation layer, the conductive pattern integrally including an electrode, a terminal, and a wiring that electrically connects the electrode and the terminal.

2. The circuit board for body fluid collection according to claim 1, wherein the terminal is disposed so as to overlap with the second substrate when projected in the thickness direction.

3. The circuit board for body fluid collection according to claim 1, wherein the electrode is disposed so as to overlap with the first substrate when projected in the thickness direction.

4. The circuit board for body fluid collection according to claim 1, wherein the electrode is disposed so as to overlap with a portion between the first substrate and the second substrate when projected in the thickness direction.

5. The circuit board for body fluid collection according to claim 1, wherein the electrode is disposed so as to overlap with the second substrate when projected in the thickness direction.

6. A biosensor comprising a housing and a circuit board for body fluid collection comprising:

a first substrate including a puncture needle,

a second substrate that is disposed at an upstream side of the first substrate in a direction of puncturing with the puncture needle with a space provided therebetween,

a flexible insulation layer that extends between the first substrate and the second substrate, and

a conductive pattern provided on the flexible insulation layer, the conductive pattern integrally including an electrode, a terminal, and a wiring that electrically connects the electrode and the terminal,

wherein the circuit board for body fluid collection is accommodated in the housing, the second substrate is fixed, and the first substrate is supported so as to be capable of advancing from inside the housing to outside the housing.