CIRCUIT BOARD FOR BODY FLUID COLLECTION, METHOD FOR PRODUCING THE SAME, METHOD FOR USING THE SAME, AND BIOSENSOR INCLUDING THE CIRCUIT BOARD FOR BODY FLUID COLLECTION

• US 20110071377A1
• Filed: 01/09/2009
• Published: 03/24/2011
• Est. Priority Date: 05/16/2008
• Status: Abandoned Application

• Current Assignee: Nitto Denko Corporation
• Original Assignee: Nitto Denko Corporation
• Inventors: Ishigaki, Saori, Kaneto, Masayuki, Ohsawa, Tetsuya, Naito, Toshiki
• Application Number:
  US12/736,784
• Publication Number:
  US 20110071377A1
• Time in Patent Office: Days
• US Class Current: 600/347
• 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 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• 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 5/15105 Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
• CPC Class Codes: A61B 5/15146 Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means. multiple simultaneous cutting or piercing A61B5/150977
• CPC Class Codes: A61B 5/15153 Multiple piercing elements stocked in a single compartment
• CPC Class Codes: A61B 5/15169 Characterized by a rolled strip
• CPC Class Codes: A61B 5/15171 Characterized by propelling the piercing element perpendicular to the direction of movement of the strip
• CPC Class Codes: A61B 5/15173 Characterized by propelling the piercing element parallel to the direction of movement of the strip
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood
• CPC Class Codes: Y10T 29/49155 Manufacturing circuit on or in base

Abstract

A circuit board for body fluid collection includes a belt-like supporting substrate, and a plurality of measurement units defined in the supporting substrate along the longitudinal direction of the supporting substrate. The measurement units each include a puncture needle formed from the supporting substrate along the longitudinal direction of the supporting substrate by forming an opening in the supporting substrate, an insulating base layer formed on the supporting substrate, and a conductive layer formed on the insulating base layer and including an electrode for making contact with a body fluid collected by puncturing with the puncture needle.

Claims

1. A circuit board for body fluid collection comprising:

a belt-like supporting substrate, and

a plurality of measurement units defined in the supporting substrate along a longitudinal direction of the supporting substrate,

wherein the plurality of measurement units each include

a puncture needle formed from the supporting substrate along the longitudinal direction of the supporting substrate by forming an opening in the supporting substrate,

an insulating base layer formed on the supporting substrate, and

a conductive layer formed on the insulating base layer and including an electrode for, making contact with a body fluid collected by puncturing with the puncture needle.

2. The circuit board for body fluid collection according to claim 1,

wherein when the circuit board for body fluid collection is wound, the puncture needle protrudes so as to tilt toward an outer side in the radial direction from a circumferential direction.

3. A biosensor comprising:

a circuit board for body fluid collection including a belt-like supporting substrate, and a plurality of measurement units defined in the supporting substrate along a longitudinal direction of the supporting substrate, wherein the plurality of measurement units each include a puncture needle formed from the supporting substrate along the longitudinal direction of the supporting substrate by forming an opening in the supporting substrate, an insulating base layer formed on the supporting substrate, and a conductive layer formed on the insulating base layer and including an electrode for making contact with a body fluid collected by puncturing with the puncture needle;

a housing in which an exposure slot for exposing the puncture needle is formed,

a feed unit in which the circuit board for body fluid collection is wound, and that feeds the circuit board for body fluid collection,

a take-up unit that takes up the circuit board for body fluid collection that is fed from the feed unit; and

a guide unit that is provided to extend from the feed unit to the take-up unit, and suppresses the puncture needle of the circuit board for body fluid collection not to protrude toward an outer side in the radial direction.

4. The biosensor according to claim 3, wherein

the puncture needle is disposed to face toward an upstream-side in a feed direction of the circuit board for body fluid collection.

5. A method for producing a circuit board for body fluid collection, the method comprising the steps of:

preparing a belt-like supporting substrate in which a plurality of measurement units are defined in a longitudinal direction with a space provided therebetween,

forming an insulating base layer on the plurality of measurement units,

forming a conductive layer including an electrode for making contact with a body fluid on the insulating base layer, and

forming a puncture needle from the supporting substrate along the longitudinal direction of the supporting substrate by forming an opening in the supporting substrate.

6. A method for using a circuit board for body fluid collection, the method comprising the steps of:

winding a circuit board for body fluid collection produced by a method for producing a circuit board for body fluid collection, the method for producing a circuit board for body fluid collection comprising the steps of;

preparing a belt-like supporting substrate in which a plurality of measurement units are defined in a longitudinal direction with a space provided therebetween,

forming an insulating base layer on the measurement units,

forming a conductive layer including an electrode for making contact with a body fluid on the insulating base layer, and

forming a puncture needle from the supporting substrate along the longitudinal direction of the supporting substrate by forming an opening in the supporting substrate.