Lancet device for puncturing the skin
First Claim
1. A lancet device (10) for puncturing the skin (11) of mammals, comprising:
- a punch element (12);
a manipulator (13) operably connected to the punch element;
a bushing element (14) having a grip (15) and an interior (28) in which the punch element (12) is axially displaceably disposed;
the punch element (12) having a lancet (18) provided with a sharp tip (19) for deliberate entering of the skin (11) on a free end (17) thereof pointing away from the manipulator (13), wherein, by means of a force acting in a lancing direction along a longitudinal axis (16), away from the manipulator, the lancet (18), via the punch element (12), can be made to extend outward from a free end (21) of the bushing to enter the skin (11) with a preadjustable momentum; and
including blocking means which prevents the possibility of reentry of the lancet (18) into the skin (11) once the lancet (18) has previously entered the skin (11), said blocking means comprising;
a sleeve element (35) disposed in an axially slidable relationship in the interior (28) of the bushing element (14), and which includes a first sleeve projection (38), oriented radially inwardly towards the longitudinal axis (16),wherein a first punch projection (24) defined on the punch element and oriented radially outwardly from the longitudinal axis (16) slidingly passes and locks beyond the first sleeve projection (38) during entry of the lancet (18) into the skin (11) and upon reentry of the lancet (18) into the end (21) of the bushing, the first punch projection (24) engages the first sleeve projection (38) to axially displace the sleeve element (35) in the axial direction (34) towards the manipulator (13).
3 Assignments
0 Petitions
Accused Products
Abstract
A lancet device for puncturing the skin of mammals, in particular of a human, includes a punch element, a manipulator, and a bushing element for the internal, axially displaceable reception of the punch element. The punch element on its free end has a lancet, provided with a sharp tip, for intentionally entering the skin. The lancet, by means of a force acting in the axial direction on the free end of the bushing via the punch element can be made to enter the skin from the end of the bushing outward with a preadjustable momentum, and a blocking arrangement using an axially slidable sleeve inside the bushing is provided, which, once the lancet has entered the skin, prevents the possibility of a reentry by locking itself within the bushing.
27 Citations
18 Claims
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1. A lancet device (10) for puncturing the skin (11) of mammals, comprising:
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a punch element (12); a manipulator (13) operably connected to the punch element; a bushing element (14) having a grip (15) and an interior (28) in which the punch element (12) is axially displaceably disposed; the punch element (12) having a lancet (18) provided with a sharp tip (19) for deliberate entering of the skin (11) on a free end (17) thereof pointing away from the manipulator (13), wherein, by means of a force acting in a lancing direction along a longitudinal axis (16), away from the manipulator, the lancet (18), via the punch element (12), can be made to extend outward from a free end (21) of the bushing to enter the skin (11) with a preadjustable momentum; and including blocking means which prevents the possibility of reentry of the lancet (18) into the skin (11) once the lancet (18) has previously entered the skin (11), said blocking means comprising; a sleeve element (35) disposed in an axially slidable relationship in the interior (28) of the bushing element (14), and which includes a first sleeve projection (38), oriented radially inwardly towards the longitudinal axis (16), wherein a first punch projection (24) defined on the punch element and oriented radially outwardly from the longitudinal axis (16) slidingly passes and locks beyond the first sleeve projection (38) during entry of the lancet (18) into the skin (11) and upon reentry of the lancet (18) into the end (21) of the bushing, the first punch projection (24) engages the first sleeve projection (38) to axially displace the sleeve element (35) in the axial direction (34) towards the manipulator (13). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification