Lancet device

• US 8,118,825 B2
• Filed: 11/18/2003
• Issued: 02/21/2012
• Est. Priority Date: 04/29/2002
• Status: Active Grant

• Current Assignee: Steven Schraga
• Original Assignee: Steven Schraga
• Inventors: Schraga, Steven
• Primary Examiner(s): SEVERSON, RYAN J
• Application Number:
  US10/716,385
• Publication Number:
  US 20040147948A1
• Time in Patent Office: 3,017 Days
• Field of Search: 606181-183, 600/583, 604/164.08, 604/164.12, 604192-193, 604197-198, 604/162, 604/253
• US Class Current: 606/182
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• 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 5/150519 Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
• 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 5/150885 Preventing re-use
• CPC Class Codes: A61B 5/150923 by means for destroying components or parts, e.g. by cutting or piercing
• CPC Class Codes: A61B 5/15111 Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• CPC Class Codes: A61B 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/1513 comprising linear sliding guides comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/15144 comprising driving means, e.g. a spring, for retracting the piercing unit into the housing

Abstract

A lancet device including a housing with an at least partially open interior, a cocking seat coupled with the housing and structured to define an open interior therewith, a lancet with a piercing tip moveably disposed within the open interior, and a biasing assembly engaging the lancet. The cocking seat is structured to engage the lancet and retain the lancet against a force of the biasing assembly so as to maintain a potential energy of the biasing assembly. A release element is provided to at least partially disengage the lancet from the cocking seat such that the potential energy of the biasing assembly moves the lancet relative to the cocking seat and drives the piercing tip of the lancet at least temporarily into a piercing orientation.

Claims

1. A lancet device comprising:

a housing including an at least partially open interior,

a lancet movably disposed within said open interior and including a piercing tip,

a biasing assembly disposed within said housing in biasing relation to said lancet and interconnected directly between said housing and said lancet,

a cocking seat including an open interior;

said cocking seat detached from said lancet and movable in driving relation to said lancet

an engagement assembly including an engagement member and a retention member, said engagement member disposed on said lancet and movable both with and relative to said lancet,

said retention member mounted on said cocking seat and disposed in continuous driving engagement with said engagement member during a concurrent, forced movement of said lancet and said cocking seat establishing a potential energy of said biasing assembly,

said engagement assembly comprising a single use, breakable hinge detachably connecting said engagement member to a remainder of said lancet;

said breakable hinge releasably disposing said cocking seat into said continuous driving engagement with said engagement member and said lancet,

a release element defined in said housing and disposable into interruptive engagement with said engagement member and deforming, pivoting relation with said breakable hinge upon said concurrent, forced movement of said lancet and said cocking seat establishing a potential energy of said biasing assembly,

said breakable hinge including a reduced thickness section structured to break upon said interruptive engagement of said release element with said engagement member and said deforming relation with said breakable hinge, and

said biasing assembly biasing said lancet from said open interior of said housing into and through said open interior of said cocking seat upon disengagement between said lancet and said cocking seat.