Sleeve For Removable Lancet of Lancing Device

• US 20150045824A1
• Filed: 03/09/2011
• Published: 02/12/2015
• Est. Priority Date: 03/09/2011
• Status: Active Grant

• Current Assignee: Embecta Corporation
• Original Assignee: Becton, Dickinson & Co
• Inventors: Mondro, Jason, Horne, Kande, Varghese, Sophia
• Granted Patent: US 9,999,384 B2
• Time in Patent Office: Days
• 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 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• 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 5/150442 Blade-like piercing elements, e.g. blades, cutters, knives, for cutting the skin
• 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 5/150633 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 5/150801 Means for facilitating use, e.g. by people with impaired vision; means for indicating when used correctly or incorrectly; means for alarming
• 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 5/1519 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
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

A lancing device (121) substantially reduces wobble in a lancet (151) used to lance a site. The lancet (151) is removably received by a cartridge (161), which is movably received by the lancing device (121). The lancet (151) is movable between a first position in which a penetrating member (153) connected to the lancet (151) is unexposed and a second position in which the penetrating member is exposed outside of the lancing device (121) for lancing a site. A spring (171) is connected to the cartridge (161) to return the lancet (151) to the first position after the site is lanced.

Claims

1. A lancet cartridge assembly for a lancing device, comprising:

a cartridge adapted to be removably received by the lancing device;

a lancet movably received by said cartridge, said lancet being movable between a first position in which a penetrating member connected to said lancet is not exposed outside of the lancing device, and a second position in which said penetrating member is exposed outside of the lancing device to lance a site; and

a spring for returning said lancet to said first position after the site is lanced.

2. The lancet cartridge assembly for a lancing device according to claim 1, wherein

said spring is connected between said cartridge and said lancet.

3. The lancet cartridge assembly for a lancing device according to claim 1, wherein

said cartridge has a bore through which said lancet travels, said bore having an accommodating portion having a diameter larger than that of said lancet;

and

said lancet having a flange disposed within said accommodating portion of said bore, a length of said accommodating portion controlling a distance traveled by said lancet when struck by a firing mechanism of the lancing device.

4. The lancet assembly for a lancing cartridge according to claim 1, wherein

a sleeve is movably connected to said lancet, such that said sleeve moves with said lancet.

5. The lancet assembly for a lancing cartridge according to claim 1, wherein

said spring is connected between said cartridge and said sleeve.

6. The lancet assembly for a lancing cartridge according to claim 5, wherein

said cartridge has a bore through which said lancet and said sleeve travel, said bore having an accommodating portion having a diameter larger than that of said bore;

and

said sleeve having a flange disposed within said accommodating portion of said bore, a length of said accommodating portion controlling a distance traveled by said sleeve when said sleeve is struck by a firing mechanism of the lancing device.

7. The lancet assembly for a lancing cartridge according to claim 6, wherein

a second end of said sleeve is adapted to be struck by the firing mechanism;

and

a first end of said sleeve is adapted to abut a flange of said lancet.

8. The lancet assembly for a lancing cartridge according to claim 6, wherein

said lancet has a flange disposed within a recess of said sleeve.

9. The lancet assembly for a lancing cartridge according to claim 1, wherein

a first sleeve is disposed rearward of a flange connected to said lancet;

and

a second sleeve is disposed forward of said lancet flange.

10. The lancet assembly for a lancing cartridge according to claim 9, wherein

said spring is connected between said cartridge and said second sleeve.

11. The lancet assembly for a lancing cartridge according to claim 10, wherein

said cartridge has a bore through which said lancet and said first and second sleeves travel, said bore having an accommodating portion having a diameter larger than that of said bore;

and

said second sleeve having a flange disposed within said accommodating portion of said bore, a length of said accommodating portion controlling a distance traveled by said second sleeve when said first sleeve is struck by a firing mechanism of the lancing device.

12. A lancing device, comprising:

a housing;

a cartridge removably connected to said housing;

a lancet movably received by said cartridge, said lancet being movable between a first position in which a penetrating member connected to said lancet is not exposed outside of said housing, and a second position in which said penetrating member is exposed outside of said housing to lance a site; and

a spring for returning said lancet to said first position after the site is lanced.

13. The lancing device according to claim 12, wherein

said spring is connected between said cartridge and said lancet.

14. The lancing device according to claim 12, wherein

said cartridge has a bore through which said lancet travels, said bore having an accommodating portion having a larger diameter;

and

said lancet having a flange disposed within said accommodating portion of said bore, a length of said accommodating portion controlling a distance traveled by said lancet when struck by a firing mechanism of the lancing device.

15. The lancing device according to claim 12, wherein

a sleeve is movably connected to said lancet, such that said sleeve moves with said lancet.

16. The lancing device according to claim 15, wherein

said spring is connected between said cartridge and said sleeve.

17. The lancing device according to claim 16, wherein

said cartridge has a bore through which said lancet and said sleeve travel, said bore having an accommodating portion having a diameter larger than that of said bore;

and

said sleeve having a flange disposed within said accommodating portion of said bore, a length of said accommodating portion controlling a distance traveled by said sleeve when said sleeve is struck by a firing mechanism of the lancing device.

18. The lancing device according to claim 12, wherein

a protrusion extends outwardly from said lancet and is received within a slot in said cartridge, said slot guiding said protrusion as said lancet moves between said first and second positions.

19. A method of lancing a site using a lancing device, comprising the steps of:

installing a cartridge housing a movable lancet in the lancing device;

using the lancet to lance the site;

removing the cartridge from the lancing device; and

replacing the used lancet in the cartridge with a new lancet.

20. The method of lancing using a lancing device according to claim 19, wherein

replacing the used lancet comprises replacing the cartridge with a new cartridge.