Lancet device

• US 8,715,309 B2
• Filed: 02/21/2012
• Issued: 05/06/2014
• 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:
  US13/401,226
• Publication Number:
  US 20120203260A1
• Time in Patent Office: 805 Days
• Field of Search: 606/181, 606/182, 600/583
• US Class Current: 606/182
• 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 5/150412 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 5/150564 Protectors removed by pulling or pushing
• 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 5/150633 Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
• CPC Class Codes: A61B 5/150717 manually removed
• CPC Class Codes: A61B 5/150908 by disconnecting components, e.g. breaking or rupturing of connected parts, e.g. piston and rod
• 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 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/15144 comprising driving means, e.g. a spring, for retracting the piercing unit into the housing
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin

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,

a lancet movably disposed within said housing;

a biasing element structured to selectively exert a biasing force on said lancet;

a cocking seat, said cocking seat moveable relative to said housing;

an engagement member and a retention member structured to releasably engage one another and to drivingly engage said lancet with said cocking seat when releasably engaged with one another so as to move said lancet against said biasing force of said biasing element upon movement of said cocking seat in a direction counter to said biasing force of said biasing element;

a single use, breakable hinge releaseably disposing said engagement member in driving engaged relation with said retention member;

a release element defined in said housing and disposable to interruptively pivot said breakable hinge upon concurrent, forced movement of said lancet and said cocking seat against said biasing force establishing a potential energy of said biasing assembly so as to disengage said lancet from said cocking seat;

said breakable hinge including a reduced thickness structured to break upon pivoting as a result of said release element so as to prevent subsequent driving engagement between said engagement member and said retention member; and

said biasing assembly biasing said lancet into piercing engagement with a patient upon disengagement between said lancet and said cocking seat.

2. A lancet device as recited in claim 1 wherein said release element is fixedly disposed in said housing.

3. A lancet device as recited in claim 1 wherein said release element is movably disposed in said housing.