Single use lancet device

• US 6,514,270 B1
• Filed: 11/10/2000
• Issued: 02/04/2003
• Est. Priority Date: 11/10/2000
• Status: Expired due to Term

• Current Assignee: Steven Schraga
• Original Assignee: Steven Schraga
• Inventors: Schraga, Steven
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US09/709,738
• Time in Patent Office: 816 Days
• Field of Search: 606/181, 606/182, 606/183, 606/184, 606/185, 604/136
• 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 5/150541 Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
• 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 5/150916 by blocking components, e.g. piston, driving device or fluid passageway
• 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

Abstract

A single use lancet device having a housing, a lancet with a piercing tip movably disposed in the housing and structured to move between a cocked orientation and a piercing orientation, and a driving assembly structured to move the lancet into the piercing orientation. A retention member and an engagement hub are further provided and structured to be cooperatively engaged with one another upon the lancet being disposed in the cocked orientation so as to maintain the lancet in the cocked orientation until released by an actuation assembly. Specifically, the actuation assembly is structured to move between an actuated and an un-actuated orientation, movement into the actuated orientation releasing the retention member and the engagement hub from their cooperative engagement with one another and thereby result in movement of the lancet into the piercing orientation. The device also includes a restrictor assembly structured to substantially prevent the actuation assembly from moving out of the actuated orientation, thereby preventing re-firing of the lancet utilizing the actuation assembly.

Claims

1. A single use lancet device comprising:

a) a housing;

b) a lancet, said lancet including a piercing tip;

c) said lancet movably disposed in said housing and structured to move at least between a cocked orientation and a piercing orientation;

d) a driving assembly structured to move said lancet at least temporarily into said piercing orientation;

e) an actuation assembly structured to move between an actuated and an un-actuated orientation, movement of said actuation assembly into said actuated orientation resulting in said movement of said lancet into said piercing orientation; and

f) a restrictor assembly structured to substantially prevent said actuation assembly from moving out of said actuated orientation at least after said lancet has moved at least temporarily into said piercing orientation by said drive assembly.

2. The single use lancet device recited in claim 1 further comprising a retention member;

and an engagement hub, said engagement hub structured to be cooperatively engaged with said retention member at least upon said lancet being disposed in said cocked orientation so as to maintain said lancet in said cocked orientation until said retention member is affirmatively released from said cooperative engagement therewith.

3. The single use lancet device recited in claim 2 wherein said actuation assembly is structured and disposed to release said retention member from said cooperative engagement with said engagement hub.

4. The single use lancet device recited in claim 3 wherein said retention member includes at least one finger, said finger including a depending protrusion structured to engage cooperative structure on said engagement hub when said lancet is disposed in said cocked orientation, said actuation assembly being structured to at least temporarily urge said finger out of said engagement with said cooperative structure on said engagement hub.

5. The single use lancet device recited in claim 1 further comprising a cocking assembly, said cocking assembly being operatively associated with said lancet and structured to move said lancet into said cocked orientation.

6. The single use lancet device recited in claim 5 wherein said cocking assembly is structured to protrude from said housing.

7. The single use lancet device recited in claim 5 wherein said cocking assembly is integrally formed with said lancet.

8. The single use lancet device recited in claim 5 wherein said cocking assembly includes a cocking element structured to extend into said housing and into movement engagement with said lancet.

9. The single use lancet device recited in claim 8 wherein said cocking element protrudes from a side of said housing so as to facilitate movement by a user'"'"'s finger.

10. The single use lancet device recited in claim 1 wherein said lancet is structured to be maintained in said cocked orientation until released by said actuation assembly.

11. The single use lancet device recited in claim 10 wherein said actuation assembly includes a release element structured to release said lancet from said cocked orientation.

12. The single use lancet device recited in claim 11 wherein said restrictor assembly includes an abutment structure cooperatively disposed between said housing and said release element, and structured to prevent said actuation assembly from moving into said un-actuated orientation after movement into said actuated orientation.

13. The single use lancet device recited in claim 12 wherein said abutment structure comprises a shoulder element and a restrictor panel, said restrictor panel and said shoulder element structured to pass one another upon said actuation assembly moving from said un-actuated orientation to said actuated orientation, and to abut one another upon attempted movement of said actuation assembly into said un-actuated orientation after movement into said actuated orientation.

14. The single use lancet device recited in claim 13 wherein said shoulder element includes an at least partially biased configuration structured to at least partially retract to facilitate passage of said restrictor panel and said shoulder element past one another in a first direction corresponding movement of said actuation assembly into said actuated orientation from said un-actuated orientation, and to expand subsequent said passage past one another in said first direction such that said shoulder element and said restrictor panel abut one another upon movement towards one another in a second direction generally opposite said first direction.

15. The single use lancet device recited in claim 13 wherein said shoulder element is defined on said release element of said actuation assembly lancet, and said restrictor panel is defined in said housing.

16. The single use lancet device recited in claim 1 wherein said driving assembly includes a biasing element operatively disposed between said lancet and said housing.

17. The single use lancet device recited in claim 16 wherein said biasing element comprises a spring.

18. A single use lancet device comprising:

a) a housing;

b) a lancet, said lancet including a piercing tip;

c) said lancet movably disposed in said housing and structured to move at least between a cocked orientation and a piercing orientation;

d) a driving assembly structured to move said lancet at least temporarily into said piercing orientation;

e) a retention member and an engagement hub, said engagement hub structured to be cooperatively engaged with said retention member at least upon said lancet being disposed in said cocked orientation so as to maintain said lancet in said cocked orientation until said retention member and said engagement hub are released from said cooperative engagement with one another;

f) an actuation assembly structured to move between an actuated and an un-actuated orientation, movement of said actuation assembly into said actuated orientation structured to release said retention member and said engagement hub from said cooperative engagement with one another and thereby result in movement of said lancet into said piercing orientation;

g) a restrictor assembly structured to substantially prevent said actuation assembly from moving out of said actuated orientation at least after said lancet has moved at least temporarily into said piercing orientation; and

h) said restrictor assembly includes an abutment structure cooperatively disposed between said housing and said actuation assembly, and structured to prevent said actuation assembly from moving into said un-actuated orientation after movement into said actuated orientation.