Method of making a capillary channel

Details Method of making a capillary channel Method of making a capillary channel

Filed on

2004-11-09

Date issued

2009-06-23

Examiner

Warden, Jill (Department: 1797)

Patent Class

Plastic and nonmetallic article shaping or treating: processes

SubClass

Mechanical shaping or molding to form or reform shaped article

SubSubClass

Shaping against forming surface

Other Related Categories

C264S239000, C264S271100, C264S272110, C264S299000, C422S105000

Type

Reexamination Certificate

Status

active

Patent number

07550104

Description

ABSTRACT:
An optical reagent format with a precise capillary channel is made by molding a format on a carrier of a precise predetermined thickness. The carrier includes an insert at least a portion of which is molded in the format. Once the format is made, the insert is detached from the carrier and removed from the format leaving a precisely dimensioned capillary channel with an inlet and vent. A reagent may be applied in the capillary channel and the format used to measure the analyte in a fluid such as blood.An electrochemical sensor with a capillary channel is formed by placing a sacrificial insert and electrodes on a sensor base and applying plastic material. After the plastic material is cured, the sacrificial is removed leaving a capillary channel in the sensor. The inserts may be removed by a tool including a clamp for clamping and holding each insert stationary and a sliding block to which the sensor is secured.

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European Search Report for European Patent Application No. EP 01 12 9230, dated Aug. 20, 2003 (2 pages).

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