Lancets

• US 20050119681A1
• Filed: 02/05/2003
• Published: 06/02/2005
• Est. Priority Date: 02/05/2002
• Status: Active Grant

• Current Assignee: Owen Mumford
• Original Assignee: Owen Mumford
• Inventors: Crossman, David Danvers, Mumford, Ernest John, Marshall, Jeremy
• Granted Patent: US 8,211,133 B2
• Time in Patent Office: Days
• US Class Current: 606/181
• 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 5/150435 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 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• CPC Class Codes: A61B 5/150618 Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• CPC Class Codes: A61B 5/150717 manually removed
• CPC Class Codes: A61B 5/150938 by blunting or disabling needle
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap

Abstract

A lancet has a generally tubular body (1). A hollow insert (4) with a closed end plugs one end of the body (1), and it has a co-axial projection (5) forming a sharp tip proud of that end of the body. The body (1) and insert (4) are simultaneously formed by twin shot moulding, the body being of polyethylene and the insert being of a liquid crystal polymer which will create a sharp tip of adequate strength.

Claims

1. A lancet for skin pricking, the lancet comprising an elongate plastics body with a plastics insert at one end providing a sharp tip projecting from that end, the plastics material of the insert being a liquid crystal polymer material.

2. A lancet according to claim 1, wherein the body of the lancet is formed from polyethylene.

3. A lancet according to claim 1, wherein the body and the insert have been formed together in a single operation by twin-shot moulding.

4. A lancet according to claim 1, wherein the insert is hollow, with a closed end carrying the sharp tip.

5. A lancet according to claim 1, wherein the body is generally tubular, with the insert plugging one end.

6. A lancet according to claim 1, wherein the body is formed with external longitudinal fins.

7. A lancet according to claim 1, wherein a twist-off cap is integrally formed with the insert, to protect the sharp tip.

8. (canceled)

9. (canceled)