Method of forming a lancet

• US 3,143,793 A
• Filed: 06/08/1962
• Issued: 08/11/1964
• Est. Priority Date: 06/08/1962
• Status: Expired due to Term

• Current Assignee: James C. Hobbs II, James J. Griffitts
• Original Assignee: James C. Hobbs II, James J. Griffitts
• Inventors: Griffitts, James J., HOBBS II JAMES C
• Application Number:
  US04/201,156
• Time in Patent Office: 795 Days
• US Class Current: 29/417
• CPC Class Codes: A61B 17/3211 Surgical scalpels, knives; Accessories therefor
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150282 for piercing elements, e.g. blade, lancet, canula, needle
• CPC Class Codes: A61B 5/150458 Specific blade design, e.g. for improved cutting and penetration characteristics
• 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 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: B21D 53/62 spoons; table forks
• CPC Class Codes: Y10T 29/49798 Dividing sequentially from leading end, e.g., by cutting or breaking

Claims

1. IN A METHOD OF FORMING A PLURALITY OF LANCETS FROM SHEET METAL, THE STEPS OF FORMING AT LEAST ONE SHARPENED EDGE ON A SINGLE THIN SHEET OF METAL, AND THEREAFTER DIECUTTING SAID SHEET ALONG OBLIQUE LINES INTERSECTING THE SHARPENED EDGE THEREOF TO DEFINE A PLURALITY OF ACUTELYTAPERED LANCET POINTS EACH HAVING AS ITS CUTTING EDGE A PORTION OF SAID SHARPENED EDGE OF SAID SHEET.