Blood Sampler

• US 20100036219A1
• Filed: 12/15/2008
• Published: 02/11/2010
• Est. Priority Date: 08/05/2008
• Status: Abandoned Application

• Current Assignee: I-Shou University
• Original Assignee: I-Shou University
• Inventors: Jang, Shian-Ching, Chen, Chien-Chen, Chung, Cho-Liang
• Application Number:
  US12/335,366
• Publication Number:
  US 20100036219A1
• Time in Patent Office: Days
• US Class Current: 600/345
• 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 5/150435 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

Abstract

A blood sampler is adapted for penetrating epidermis of skin in order to collect blood, and includes a plate, a thin-film electrode unit, and a plurality of spaced apart penetrating members. The plate has an upper surface that is indented to form a recess adapted for containing the blood. The thin-film electrode unit is provided in the plate and has a reactive section that is exposed at a bottom of the recess. The penetrating members are provided on the reactive section of the thin-film electrode unit. Each of the penetrating members has a bottom end that is wire-bonded to the reactive section of the thin-film electrode unit, and a top end that is not higher than the upper surface of the plate.

Claims

1. A blood sampler adapted for penetrating epidermis of skin in order to collect blood, said blood sampler comprising:

a plate having an upper surface that is indented to form a recess adapted for containing the blood;

a thin-film electrode unit provided in said plate and having a reactive section that is exposed at a bottom of said recess; and

a plurality of spaced apart penetrating members provided on said reactive section of said thin-film electrode unit, each of said penetrating members having a bottom end that is wire-bonded to said reactive section of said thin-film electrode unit, and a top end that is not higher than said upper surface of said plate.

2. The blood sampler as claimed in claim 1, wherein said plate is made from a polymer, apiece of paper, or a metallic foil.

3. The blood sampler as claimed in claim 1, wherein said thin-film electrode unit includes a first electrode and a second electrode that is disposed apart from said first electrode, said first electrode and said second electrode being adapted to be electrically conducted by the blood.

4. The blood sampler as claimed in claim 1, wherein said penetrating members are made from gold or a gold-containing material.

5. The blood sampler as claimed in claim 1, wherein each of said penetrating members includes a base at said bottom end, and a needle extending from said base to said top end.

6. The blood sampler as claimed in claim 5, wherein adjacent ones of said needles have therebetween a smallest distance that is equal to a diameter of said base.

7. The blood sampler as claimed in claim 5, wherein said needle of each of said penetrating members has a width that ranges from 20 to 100 micrometers and a length that ranges from 500 to 2000 micrometers.

8. The blood sampler as claimed in claim 1, further comprising an enzyme that is provided in said recess and that is adapted for reacting with the blood so as to change color.