Lancing Device for Obtaining Samples of Body Fluid

• US 20150313514A1
• Filed: 07/25/2013
• Published: 11/05/2015
• Est. Priority Date: 08/22/2012
• Status: Active Grant

• Current Assignee: Gerresheimer Regensburg GmbH (Gerresheimer AG)
• Original Assignee: Gerresheimer Regensburg GmbH (Gerresheimer AG)
• Inventors: STREHL, Michael
• Granted Patent: US 10,143,407 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• 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 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• 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 5/15115 Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
• 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 5/15153 Multiple piercing elements stocked in a single compartment
• CPC Class Codes: A61B 5/15163 Characterized by propelling the piercing element in an axial direction relative to the disc
• CPC Class Codes: A61B 5/15171 Characterized by propelling the piercing element perpendicular to the direction of movement of the strip

Abstract

The application relates to a lancing device for obtaining samples of body fluid, said device comprising: a base body which is rotationally symmetrical with relation to the longitudinal axis thereof and on one longitudinal end of which a positioning surface with an exit opening is arranged; a lancet cartridge for receiving a plurality of lancets; a drive device for moving a lancet held in the lancet cartridge back and forth along the longitudinal axis; and a transport device for transporting lancets on a plane perpendicular to the longitudinal axis. The exit opening is located substantially centrally in the positioning surface and the lancet cartridge has a guide track for the lancets, in which track said lancets can be positioned in such a way that their tips can emerge from the exit opening during the movement back and forth.

Claims

1-15. -15. (canceled)

16. A lancing device for obtaining bodily fluid samples comprising:

a) a base body, which is substantially rotationally symmetrical about the longitudinal axis thereof, which, on one longitudinal-face end thereof, has a positioning face with an outlet opening,

b) a lancet magazine for receiving a plurality of lancets, which is held replaceably in the base body,

c) a drive device for moving a lancet arranged in the lancet magazine back and forth in the direction of the longitudinal axis, said lancet being positioned therein in such a way that the tip thereof can exit the outlet opening during the movement back and forth,

d) a transport device for further transportation of the lancets held in the lancet magazine,

e) the outlet opening being arranged substantially centrally in the positioning face,

f) the lancet magazine having a guidance path for the lancets, in which the lancets can be positioned in such a way that the tips thereof can exit the outlet opening during the movement back and forth, characterised in that

g) the lancets in the transport device for further transportation of the lancets held in the lancet magazine are displaceably held in a plane perpendicular to the longitudinal axis,

h) the guidance path is formed in a non-circular path about the longitudinal axis of the lancing device, and in that,

i) in each case, the drive device for moving a lancet arranged in the lancet magazine back and forth in the direction of the longitudinal axis merely moves one of the lancets in the lancet magazine back and forth in the direction of the longitudinal axis.

17. The lancing device according to claim 16, wherein the base body has a removable cap which contains the positioning face with the outlet opening.

18. The lancing device according to claim 16, wherein an outer magazine housing, having an outlet opening corresponding to the outlet opening, is provided for the lancet magazine.

19. The lancing device according to claim 18, wherein an outer magazine housing cover is provided for the outer magazine housing.

20. The lancing device according to claim 16, wherein the drive device comprises a drive plunger, which can be coupled and decoupled via a release plunger to a needle of the lancet which is positioned in such a way that the tip of the needle can exit the outlet opening during the movement back and forth.

21. The lancing device according to claim 16, wherein the base body has a tensioning element for tensioning the drive device under a spring load and a trigger element for slackening the drive device.

22. The lancing device according to claim 16, wherein a clock device is provided, which is formed to move the lancet, which is positioned in such a way that the tip thereof can exit the outlet opening during the movement back and forth, out of the position thereof in the guidance path of the lancet magazine and to move an adjacent lancet into this position.

23. The lancing device according to claim 22, wherein the clock device is formed to be manually operable by means of a clock trigger element.

24. The lancing device according to claim 22, wherein the clock device is formed in such a way that it repositions the lancets automatically, preferably by way of a spring mechanism or an electric motor.

25. The lancing device according to claim 16, wherein the guidance path of the lancet magazine is formed in such a way that the lancets received therein are subject to restricted guidance.

26. The lancing device according to claim 16, wherein the guidance path of the lancet magazine is formed either to receive an open or closed lancet band, in which lancet bodies of the lancets are interconnected via at least one connection band or via connection webs, or to receive individual lancets.

27. A lancet magazine for a lancing device according to claim 26.

28. A lancet band for a lancet magazine according to claim 27.

29. The lancet band according to claim 28, wherein a stop element, which prevents the lancet band from being conveyed onwards in the lancet magazine once all of the lancets of the lancet band have been moved back and forth once, is provided on a lancet band end.

31. The lancet band according to claim 29, wherein the stop element cooperates with or engages in a stop element of the lancet magazine.