Source: http://www.google.com/patents/US20020040230?dq=5685792
Timestamp: 2017-06-23 00:39:14
Document Index: 510533593

Matched Legal Cases: ['art 25', 'art 24', 'art 24', 'art 24', 'art 33', 'art 33']

Patent US20020040230 - Blood lancet system for blood withdrawal for diagnostic purposes - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsBlood lancet system for blood withdrawal for diagnostic purposes with a housing, a lancet holder movable in the housing for holding an exchangeable lancet, and a lancet drive for driving the pricking movement of the lancet holder with the lancet contained herein. The housing has a cap at the front end...http://www.google.com/patents/US20020040230?utm_source=gb-gplus-sharePatent US20020040230 - Blood lancet system for blood withdrawal for diagnostic purposesAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS20020040230 A1Publication typeApplicationApplication numberUS 09/884,305Publication dateApr 4, 2002Filing dateJun 19, 2001Priority dateJun 21, 2000Also published asDE10030410C1, EP1166719A2, EP1166719A3, US6602268Publication number09884305, 884305, US 2002/0040230 A1, US 2002/040230 A1, US 20020040230 A1, US 20020040230A1, US 2002040230 A1, US 2002040230A1, US-A1-20020040230, US-A1-2002040230, US2002/0040230A1, US2002/040230A1, US20020040230 A1, US20020040230A1, US2002040230 A1, US2002040230A1InventorsHans-Jurgen Kuhr, Richard ForsterOriginal AssigneeHans-Jurgen Kuhr, Richard ForsterExport CitationBiBTeX, EndNote, RefManReferenced by (180), Classifications (14), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetBlood lancet system for blood withdrawal for diagnostic purposes
[0028] The blood lancet system 1 represented in FIGS. 1 to 5 consists of a pricking apparatus 2 and exchangeable lancets 3, adapted to be used together with the pricking apparatus 2. The lancets 3 have a lancet body 4 made of plastic and a needle 5 fixed in the lancet body 4; the sharp tip 6 of the lancet needle 5 protrudes from the lancet body in the pricking direction symbolized by the arrow 7. For the unused lancet 3 represented in FIG. 1, the tip 6 is covered by a tip cover element 8, which is connected to the lancet body 4 via a breaking point 9 in a way that it can easily be removed by turning and pulling, thus exposing the tip 6. [0029] In the embodiment shown, the housing 10 of the pricking apparatus 2 is designed with an elongated shape, similar to a pencil (so-called pencil-design). The longitudinal axis 11 of the pricking apparatus 2 runs in the pricking direction 7. [0030] A lancet holder 12 is located in the housing 10. The lancet 3 is fixed in the lancet holder 12 by means of an appropriate clamping device in an exactly reproducible longitudinal position. In the represented case, the lancet holder 12 has two holder tongues 12 a, pretensioned radially towards the interior of the holder and engaging with corresponding recesses 4 a of the lancet body 4. Further characteristics of this fixing design can be taken from U.S. Pat. No. 5,318,584. The lancet holder is guided and arranged in a way that it can be moved forward, with as few vibrations as possible, in pricking direction 7 inside the housing 10, until the lancet tip 6 protrudes from an opening 13, thereby generating a prick wound in a body part 25 (FIG. 2) touching a contact surface 14 which is ring-shaped and surrounds the opening 13. [0031] The pricking movement of the lancet holder 12 and a lancet 3 held thereby is driven by a lancet drive, designated as a whole as 15. The lancet drive is preferably designed according to the principles described in U.S. Pat. No. 5,318,584. This includes use of a cam control. A control pivot 16 (FIG. 4) is arranged at the lancet holder; it meshes, acting as operating cam, into a recess of a drive rotor 17 (only partially visible in FIGS. 2 and 3). The drive rotor 12 performs a turn around the longitudinal axis 11 of the housing 10. The rotation of the drive rotor 17 with the operating cam located therein, leads to a corresponding longitudinal movement of the control pivot 16, and thus of the lancet holder 12 in pricking direction 7. Further characteristics of this preferred lancet drive 15 can be taken from the US patent mentioned before. [0032] The front end, in pricking direction, of the housing 10 is formed by a cap 20, covering the insertion end designed for inserting the lancet 3 into the lancet holder 12. The cap 20 is removeably fixed at the housing 10. To this end different fastening principles can be used, as long as a precise and reproducible definition of the longitudinal position of the housing cap 20 with respect to the lancet holder 12 is provided. For the design shown, a latch fastening is used, in which a bulge 22 provided at the cap 20 latches into a corresponding recess 23 of a housing part 24. Instead of such a latch fastening, a thread fastening can also be used. [0033] In the embodiment shown, the housing part 24 to which the cap 20 is fastened, is adjustable in its longitudinal position in relation to the rest of the housing 10 and thus in relation to the lancet holder 12 by means of a thread 26. This allows an adjustment of the pricking depth. The more the housing part 24, and thus the cap 20 where the contact surface 14 is located, are shifted forwardly, in pricking direction 7, the smaller becomes the pricking depth, for a given lowest position of the lancet holder 12 in pricking direction 7. [0034] A coupling mechanism 28, by which the lancet 3 and the housing cap 20 are coupled automatically to each other while the housing cap is attached the housing 10, includes an ejector 30 moveably arranged in pricking direction 7. It can best be seen in its entirety in FIG. 5. Generally, the ejector 30 may be formed by any constructive part comprising in its forwardly located section, with respect to the pricking direction, a coupling element 34 for coupling to the housing cap 20, and in its rearwardly located section a lancet contact element 31 which may contact the lancet 3 in such a way that movement of the lancet contact element 31 in pricking direction 7 causes ejection of the lancet 3 from the lancet holder 12. The part of the ejector 30 between the lancet contact element 31 and the coupling element 34 is designated intermediate part 33. [0035] In the embodiment shown, the lancet contact element 31 is formed by two ejector rods 32, pushing against the rear end of the lancet 3. A coupling element 34 of the ejector 30 and a corresponding coupling element 35 of the housing cap 2 are adapted to each other such that the cap 20 is coupled to the ejector 30, and thus indirectly to the lancet 3, during attachment of the housing cap 20 to the housing 10. In the represented case, the ejector-side coupling element 34 is embodied by three segments of a radial collar 37, protruding radially outwardly from a sleeve 38 surrounding the lancet holder. The sleeve 38 has recesses in the area of the collar 37, separating the segments of the radial collar 37 from each other and allowing an elastic deformation, radially to the inside, of the sleeve 38 in the area of the radial collar 37. [0036] In the embodiments shown, the coupling element 35 provided at the housing cap 20 is formed by a ring-shaped protrusion 41 located at the inside wall 40 of the housing, arranged and adapted in such a manner that during the attachment of the cap 20, the sleeve 38 is slightly compressed in the area of the radial collar 37, and the radial collar 37 latches, after passing the narrow formed by the ring-shaped protrusion 41, into a recess 43, which is located before the ring-shaped protrusion 41 in pricking direction 7. [0037] Numerous variations of the coupling mechanism 28 are possible, provided that, on one hand, the coupling between the housing cap 20 and the lancet 3 (preferably indirectly via an ejector 30) is effected during attaching of the housing cap 20 onto the housing 10 (after previously having inserted the lancet 3 as a separate part into the lancet holder 12), and, on the other hand, the lancet 3 is during the removal of the cap 20 simultaneously pulled out of the lancet holder 12. The represented coupling principle, in which at least one of the coupling elements 34,35 is biased elastically in such a manner that it latches into a corresponding recess (here, the recess 43) of the other coupling element 35, is preferred, because it allows a particularly simple handling. However, an appropriate coupling can also be obtained, e.g., by a bayonet joint. [0038] Furthermore, the contact between a lancet contact element 31 provided at the ejector 30 and the lancet, which is necessary for the removal of the lancet 3 from the lancet holder 12, must not necessarily be embodied by a push-out device, which pushes against the lancet from its rear end, as the ejector rod 32 does. A design which pulls the lancet 3 out of the lancet holder 12, is also possible in which case a lancet contact element provided at a correspondingly shaped ejector may latch into a corresponding recess of the lancet body, conveniently from the side. [0039] The embodiment shown, in which the intermediate part 33 of the ejector 30 which joins the ejector-side coupling element 34 with the lancet contact element 31, is at least partially sleeve-shaped, is particularly preferred, as the sleeve 38 allows a precise guiding of the lancet holder 12 contained therein. Other designs are also possible. For example, the ejector can be formed by two or more rods arranged preferably rotation-symmetrically in pricking direction. At the front section of these rods, coupling elements for coupling to the cap 20 may be provided, and at their rear section, a lancet contact element 31 may be present. [0040] FIGS. 6 to 9 show, complementary to the FIGS. 2 and 3, some more handling stages of the blood lancet system 1 according to the invention. [0041] The lancet is gripped at the tip cover element 9 and inserted into the holder 12 (FIG. 6) with the housing cap 20 removed. Thereafter, the tip cover element 9 is turned off and the housing cap 20 is attached, its protrusion 41 pressing against the radial collar 37 of the sleeve 38, thus pushing the ejector 30 backwards, until its axial backward movement is stopped by a thrust block (FIG. 7). [0042] If the housing cap (20) is further pushed backwards (into the position represented in FIG. 2), the ring-shaped protrusion 41 comes into an axial position behind the radial collar 37, so that the coupling elements 34,35 latch into each other. [0043] After the pricking process, which is not different from previously known blood lancet systems, the housing cap 20 is removed again. During removal it reaches the position represented in FIG. 8, where the ring-shaped protrusion 41 is in contact with the radial collar 37. Thus, if the housing cap 20 is moved further in forward direction (in pricking direction 7), the ejector 30 is moved forward, pushing by means of its lancet contact element 31 (ejector rod 32) the lancet 3 out of the holder in forward direction. The lancet then falls into the housing cap 20 or remains unattached in the lower section of the housing 10. After taking off the housing cap 20, the used lancet 3 can be disposed into a waste bin without having to touch it. 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instrumentWO2009022131A2Aug 13, 2008Feb 19, 2009Owen Mumford LimitedLancing devicesWO2009022131A3 *Aug 13, 2008Apr 23, 2009Owen Mumford LtdLancing devices* Cited by examinerClassifications U.S. Classification606/181International ClassificationA61B5/15Cooperative ClassificationA61B5/1519, A61B5/15186, A61B5/150618, A61B5/150564, A61B5/150549, A61B5/150717, A61B5/150519, A61B5/150412, A61B5/150183, A61B5/150022European ClassificationA61B5/14B2, A61B5/151SLegal EventsDateCodeEventDescriptionJan 17, 2002ASAssignmentOwner name: ROCHE DIAGNOSTICS GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KUHR, HANS-JURGEN;FORSTER, RICHARD;REEL/FRAME:012488/0552;SIGNING DATES FROM 20010911 TO 20010917Jan 29, 2002ASAssignmentOwner name: ROCHE DIAGNOSTICS CORPORATION, INDIANAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROCHE DIAGNOSTICS GMBH;REEL/FRAME:012538/0766Effective date: 20010918Feb 21, 2007REMIMaintenance fee reminder mailedAug 5, 2007LAPSLapse for failure to pay maintenance feesSep 25, 2007FPExpired due to failure to pay maintenance feeEffective date: 20070805Jun 23, 2015ASAssignmentOwner name: ROCHE DIABETES CARE, INC., INDIANAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROCHE DIAGNOSTICS OPERATIONS, INC.;REEL/FRAME:036008/0670Effective date: 20150302RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services