Lancet

• US 7,655,017 B2
• Filed: 12/11/2003
• Issued: 02/02/2010
• Est. Priority Date: 12/11/2003
• Status: Expired due to Fees

• Current Assignee: Charles D. Starnes
• Original Assignee: Caribbean Medical Brokers Incorporated
• Inventors: Starnes, Charles
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US10/735,094
• Publication Number:
  US 20050131440A1
• Time in Patent Office: 2,245 Days
• Field of Search: 606181-185, 606/167, 761/19, 303/42, 303/43, 604/232, 604/240, 604/241
• 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 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• CPC Class Codes: A61B 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• CPC Class Codes: A61B 5/150587 by friction fit
• 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 5/150885 Preventing re-use
• CPC Class Codes: A61B 5/15142 Devices intended for single use, i.e. disposable

Abstract

An improved lancet having a body integrally molded about an elongated shaft of a lancet needle and an easy twist off cap is disclosed. The lancet body further includes a cap integrally molded about the pointed end of the lancet needle and joined to the lancet body by a frangible junction connecting the distal end of the lancet body and the cap. The cap includes radially projecting, diametrically opposed tabs which provide structural members that may be grasped by the user to facilitate twisting and removal of the cap.

Claims

1. A lancet having a pre-use and a post-use configuration, said lancet comprising:

a lancet body having a distal end and a needle piercing tip projecting from said distal end;

a cap, said cap in a pre-use configuration connected to said distal end by a frangible junction, said cap comprising an opening sized for mating engagement with said lancet distal end;

an interior axially projecting post disposed within said opening of said cap, whereby said needle piercing tip is embedded within said interior axially projecting post in said pre-use configuration;

said cap having at least one tab member projecting therefrom;

wherein in a post-use configuration said frangible junction is broken and said cap is mounted onto said lancet body with said opening of said cap receiving said lancet distal end and at least a portion of said piercing tip embedded within said interior axially projecting post.

2. A lancet according to claim 1, wherein said cap is generally cylindrical and includes first and second diametrically opposed radially projecting tabs.

3. A lancet according to claim 1, wherein said cap defines an opening sized for mating engagement with said lancet distal end and an interior shoulder providing a stop upon engagement with said lancet distal end.

4. A lancet comprising:

a lancet body having a distal end and a piercing tip projecting from said distal end;

a cap connected to said distal end with said piercing tip embedded therein by a frangible junction, said cap comprising an opening facing in the distal direction away from said lancet body, said cap separable from said lancet body at said frangib1e junction such that said piercing tip is exposed;

whereby upon separation of said cap from said lancet body said cap is positionable upon said distal end of said lancet body such that said opening receives said distal end and said piercing tip is embedded in said cap.

5. The lancet of claim 4, wherein said cap is generally cylindrical and further comprises first and second diametrically opposed radially projecting tabs.

6. The lancet of claim 5, wherein said cap further comprises an interior shoulder providing a stop upon engagement with said lancet distal end.

7. The lancet of claim 4, wherein said cap further comprises an interior axially projecting post disposed within said opening for receiving at least a portion of said piercing tip embedded therein both when said cap is connected to said distal end and when said cap is positioned with said distal end received by said opening.

8. The lancet of claim 7, wherein said cap is generally cylindrical and further comprises first and second diametrically opposed radially projecting tabs.

9. The lancet of claim 8, wherein said cap further comprises an interior shoulder providing a stop upon engagement with said lancet distal end.

10. A lancet comprising:

an elongated lancet body having a distal end;

a shaft disposed within said lancet body, said shaft comprising a piercing tip projecting from said distal end of said lancet body; and

a removable cap having a first position connected to said distal end of said lancet body by a frangible junction with said piercing tip embedded within said frangible junction, said cap comprising a generally cylindrical opening coaxially aligned with said shaft and facing in the distal direction away from said lancet body

said cap being removable from said lancet body by destruction of said frangible junction, whereby said cap has a second position such that said opening of said cap is facing toward said lancet body such that said distal end of said lancet body is received by said opening and said piercing tip is embedded in said cap.

11. The lancet of claim 10, wherein said cap further comprises at least one tab member projecting therefrom.

12. The lancet of claim 10, wherein said cap further comprises first and second diametrically opposed radially projecting tabs.

13. The lancet of claim 12, wherein said cap further comprises an interior axially projecting post disposed within said opening for receiving at least a portion of said piercing tip embedded therein when said cap is in either said first or said second position.

14. The lancet of claim 10, wherein said cap further comprises an interior axially projecting post disposed within said opening for receiving at least a portion of said piercing tip embedded therein when said cap is in either said first or said second position.

15. A lancet comprising:

an elongated lancet body having a distal end;

a shaft disposed within said lancet body, said shaft comprising a piercing tip projecting from said distal end of said lancet body;

a removable cap connected to said distal end of said lancet body by a frangible junction with said piercing tip embedded therein, said cap comprising a generally cylindrical opening, said cap being generally cylindrical and coaxially aligned with said shaft prior to separation of said frangible junction and removal of said cap from said lancet body; and

at least one tab member projecting radially from said cap member.

16. The lancet of claim 15, said at least one tab member comprising first and second diametrically opposed radially projecting tabs.

17. The lancet of claim 16, said opening being coaxially aligned with said shaft prior to separation of said frangible junction and removal of said cap from said lancet body.

18. The lancet of claim 17, wherein said cap further comprises an interior axially projecting post disposed within said opening receiving at least a portion of said piercing tip embedded therein when said cap is removed from said lancet body, reversed and said opening is matingly engaged with said lancet distal end.

19. The lancet of claim 18, wherein said cap further comprises an interior shoulder providing a stop upon engagement with said lancet distal end.