Lancing Device for Obtaining Samples of Body Fluid

• US 20150265199A1
• Filed: 06/18/2013
• Published: 09/24/2015
• 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 9,763,611 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150183 Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
• 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 5/150641 comprising means to impede repositioning of protection sleeve from covering to uncovering position
• CPC Class Codes: A61B 5/150961 Means for the detection of the presence or absence of a module, a component or an abnormal condition; detection of leaks
• 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 5/15146 Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means. multiple simultaneous cutting or piercing A61B5/150977
• 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 5/15169 Characterized by a rolled strip
• CPC Class Codes: A61B 5/15173 Characterized by propelling the piercing element parallel to the direction of movement of the strip

Abstract

The invention relates to a lancing device (1) for obtaining bodily fluid samples, comprising a base body (3), on one longitudinal-face end (6) of which a removable cap (12) is arranged which has a positioning face (8) with an outlet opening (7), a lancet magazine (4) for receiving at least one lancet (5), which is held replaceably in the base body (3), a drive device (14) for moving a lancet (5) arranged in the lancet magazine (4) back and forth in the direction of the longitudinal axis (2), said lancet being positioned therein in such a way that the tip thereof can exit the outlet opening (7) during the movement back and forth, wherein the lancet magazine (4) has a locking element (30) and the cap (12) has an unlocking element (31) formed to engage in the locking element (30).

Claims

1-13. -13. (canceled)

14. A lancing device (1) for obtaining bodily fluid samples, comprising

a) a base body (3), which is substantially rotationally symmetrical about the longitudinal axis (2) thereof, on one longitudinal-face end (6) of which a removable cap (12) is arranged which has a positioning face (8) with an outlet opening (7),

b) a lancet magazine (4) for receiving at least one lancet (5), which is held replaceably in the base body (3),

c) a drive device (14) for moving a lancet (5) arranged in the lancet magazine (4) back and forth in the direction of the longitudinal axis (2), said lancet being positioned therein in such a way that the tip thereof can exit the outlet opening (7) during the movement back and forth,

wherein the lancet magazine (4) has a locking element (30) and the cap (12) has an unlocking element (31) formed to engage in the locking element (30).

15. The lancing device according to claim 14, wherein the locking element (30) is positioned flat on a locking tab (32) in a locking position, and the two side regions (33, 34) thereof are braced on bracing elements (35, 36) of the drive device (14) and of the lancet magazine (4).

16. The lancing device according to claim 14, wherein upon engaging in the locking element (30), the unlocking element (31) transfers said locking element into an unlocked position, in which the locking element (30) is raised from the locking tab (32) and the side regions (33, 34) thereof are disengaged from at least one of the bracing elements (35, 36) of the drive device (14) and of the lancet magazine (4).

17. The lancing device according to claim 14, wherein the locking element (30) is in the form of a spring element, in particular a leaf spring element (40), and the unlocking element (31) is in the form of a pin (41).

18. The lancing device according to claim 17, wherein the leaf spring element (40) and the pin (41) comprise mutually adapted ramp slopes (42, 43).

19. The lancing device according to claim 14, wherein an outer magazine housing (13) is provided for the lancet magazine (4), which comprises an outlet opening (7′

) corresponding to the outlet opening (7).

20. The lancing device according to claim 19, wherein the outer magazine housing (13) comprises an end face (44), which contains the outlet opening (7′

) and an opening (45) for the unlocking element (31) of the cap (12) and forms the bracing element (36) of the lancet magazine (4).

21. The lancing device according to claim 14, wherein the drive device (14) comprises a drive plunger (16) and a release plunger (17), which can be coupled to and decoupled from a needle (24) of whichever lancet (5′

) is positioned in such a way that the tip thereof can exit the outlet opening (7) during the movement back and forth.

22. The lancing device according to claim 14, wherein the base body (3) has a tensioning element (18) for tensioning the drive device (14) and a trigger element (19) for slackening the drive device (14).

23. The lancing device according to claim 14, wherein a clock device is provided, which is formed to move the lancet (5′

), which is positioned in such a way that the tip thereof can exit the outlet opening (7) during the movement back and forth, out of the position thereof in the guidance path (11) of the lancet magazine (4) and to move an adjacent lancet (5″

) into this position.

24. The lancing device according to claim 23, wherein the clock device is formed to be manually operable by means of a clock trigger element (20) or the clock device is formed in such a way that it repositions the lancets (5′

, 5″

) automatically, preferably by way of a spring mechanism or an electric motor.

25. A lancet magazine (4) for a lancing device (1) according to claim 14.

26. A cap (12) for a lancing device (1) according to claim 14.