Lancing device for taking blood samples
First Claim
1. A lancing device for taking blood samples, comprising:
- a housing which extends along a longitudinal axis from an end region of the lancing device to a head region of the lancing device,an axially displaceable lancet holder element for holding a replaceable lancet,a drive unit comprising at least a lancing spring element for driving the axially displaceable lancet holder element in a lancing direction,a fixable tensioning carriage part for tensioning said lancing spring element, anda further tensioning carriage part by which said fixable tensioning carriage part is able to be displaced from a relaxed position at the end region of the lancing device in the lancing direction towards the head region of the lancing device to a tensioning position, wherein said fixable tensioning carriage part is able to be fixed in this tensioning position, wherein by said displacement of the fixable tensioning carriage part the lancing spring element is able to be tensioned,wherein the fixable tensioning carriage part is axially fixed in the tensioning position by means of a latching apparatus which is able to be latched to the axially displaceable lancet holder element, wherein the entire displaceable lancet holder element and the entire fixable tensioning carriage part are displaceable relative to each other along said longitudinal axis,wherein the further tensioning carriage part comprises an engagement element for radial engagement of the latching apparatus which is able to be latched to the axially displaceable lancet holder element.
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Accused Products
Abstract
A lancing device (1) for taking blood samples comprises a housing (2), an axially displaceable lancet holder element (32) for holding a replaceable lancet (12), and a drive unit (30) comprising at least a lancing spring element (31) for driving the axially displaceable lancet holder element (32) in a lancing direction (18). The lancing device further comprises a tensioning carriage part (26) which can be fixed in a tensioning position (36) for tensioning the lancing spring element (31). The fixable tensioning carriage part (26) is temporarily axially fixed in this tensioning position (36) by means of a latching apparatus (35) which can be latched to the axially displaceable lancet holder element (32).
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Citations
20 Claims
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1. A lancing device for taking blood samples, comprising:
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a housing which extends along a longitudinal axis from an end region of the lancing device to a head region of the lancing device, an axially displaceable lancet holder element for holding a replaceable lancet, a drive unit comprising at least a lancing spring element for driving the axially displaceable lancet holder element in a lancing direction, a fixable tensioning carriage part for tensioning said lancing spring element, and a further tensioning carriage part by which said fixable tensioning carriage part is able to be displaced from a relaxed position at the end region of the lancing device in the lancing direction towards the head region of the lancing device to a tensioning position, wherein said fixable tensioning carriage part is able to be fixed in this tensioning position, wherein by said displacement of the fixable tensioning carriage part the lancing spring element is able to be tensioned, wherein the fixable tensioning carriage part is axially fixed in the tensioning position by means of a latching apparatus which is able to be latched to the axially displaceable lancet holder element, wherein the entire displaceable lancet holder element and the entire fixable tensioning carriage part are displaceable relative to each other along said longitudinal axis, wherein the further tensioning carriage part comprises an engagement element for radial engagement of the latching apparatus which is able to be latched to the axially displaceable lancet holder element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lancing device for taking blood samples, comprising
a housing, an axially displaceable lancet holder element for holding a replaceable lancet, a drive unit comprising at least a lancing spring element for driving the axially displaceable lancet holder element in a lancing direction, a fixable tensioning carriage part which is able to be fixed in a tensioning position for tensioning the lancing spring element, and a release element, wherein the fixable tensioning carriage part is axially fixed in the tensioning position by means of a latching apparatus which is able to be latched to the axially displaceable lancet holder element, wherein in the tensioning position the lancet holder element is fixed against an axial displacement in the lancing direction by direct contact of the lancet holder element to the housing, wherein by a single-stage actuation of the release element the axially displaceable lancet holder element and the fixable tensioning carriage part are releasable in a sequential manner from their respective fixations, wherein in the tensioning position the axially displaceable lancet holder element is initially releasable from its fixation to the housing by the actuation of the release element, wherein the released axially displaceable lancet holder element is displaceable to a lancing end position by the lancing spring element, wherein said displacement of the axially displaceable lancet holder releases the fixation of the fixable tensioning carriage part.
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19. A lancing device for taking blood samples, comprising:
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a housing which extends along a longitudinal axis from an end region of the lancing device to a head region of the lancing device, an axially displaceable lancet holder element for holding a replaceable lancet, a drive unit comprising at least a lancing spring element for driving the axially displaceable lancet holder element in a lancing direction, a fixable tensioning carriage part for tensioning said lancing spring element, and a further tensioning carriage part by which said fixable tensioning carriage part is able to be displaced from a relaxed position at the end region of the lancing device in the lancing direction towards the head region of the lancing device to a tensioning position, wherein said fixable tensioning carriage part is able to be fixed in this tensioning position, wherein by said displacement of the fixable tensioning carriage part the lancing spring element is able to be tensioned, wherein the fixable tensioning carriage part is axially fixed in the tensioning position by means of a latching apparatus which is able to be latched to the axially displaceable lancet holder element, wherein the entire displaceable lancet holder element and the entire fixable tensioning carriage part are displaceable relative to each other along said longitudinal axis, wherein the latching apparatus comprises a latching arm element which is able to be deflected radially in relation to the lancing direction and comprises means for fixing the fixable tensioning carriage part to the latching arm element. - View Dependent Claims (20)
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Specification