Lancing devices
First Claim
Patent Images
1. A lancing device, comprising:
- a housing adapted for receiving in use a replaceable lancet introduced into said housing, the housing having a threaded forward end;
a drive provided in the housing, the drive being actuable to drive said lancet momentarily to project a tip of the lancet from the forward end of the housing; and
a nose portion moveably mounted to the forward end of the housing and having an aperture through which said lancet projects when fired, said nose portion being threadedly engaged with the threaded forward end of said housing to allow a penetration depth of said lancet tip to be pre-set,wherein said nose portion is resiliently deformable between an undeformed position in which the nose portion is locked against rotation relative to the housing, and a deformed position in which the nose portion is free to rotate relative to the housing,wherein application of pressure to opposed external regions of said nose portion causes bodily deformation of the nose portion into the deformed position.
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Accused Products
Abstract
A lancing device includes a housing (10, 12) for receiving in use a replaceable lancet (34) introduced into said housing, a drive (58, 59) actuable to drive the lancet momentarily to project its tip from the housing, and a nose portion (14) having an aperture through which said lancet projects when fired. The nose portion is threadedly engaged (78, 81) with the forward end (10) of the housing to allow the penetration depth of said lancet tip to be pre-set, and is resiliently deformable between a position in which it is locked against rotation and a position in which it is free to rotate.
17 Citations
20 Claims
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1. A lancing device, comprising:
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a housing adapted for receiving in use a replaceable lancet introduced into said housing, the housing having a threaded forward end; a drive provided in the housing, the drive being actuable to drive said lancet momentarily to project a tip of the lancet from the forward end of the housing; and a nose portion moveably mounted to the forward end of the housing and having an aperture through which said lancet projects when fired, said nose portion being threadedly engaged with the threaded forward end of said housing to allow a penetration depth of said lancet tip to be pre-set, wherein said nose portion is resiliently deformable between an undeformed position in which the nose portion is locked against rotation relative to the housing, and a deformed position in which the nose portion is free to rotate relative to the housing, wherein application of pressure to opposed external regions of said nose portion causes bodily deformation of the nose portion into the deformed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lancing device, comprising:
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a housing adapted for receiving in use a replaceable lancet introduced into said housing, the housing comprising a forward housing part and a rearward housing part; a drive actuable to drive said lancet momentarily to project a tip of the lancet from the housing; and a nose portion having an aperture through which said lancet projects when fired, said nose portion being threadedly engaged with a forward end of said housing to allow a penetration depth of said lancet tip to be pre-set, the nose portion being captive on the forward housing part, wherein said nose portion is resiliently deformable and an application of pressure to opposed external regions of said nose portion causes bodily deformation of the nose portion between a position in which the nose portion is locked against rotation and a position in which the nose portion is free to rotate, the forward housing part slideably receives a lancet holder which has a cylindrical rear portion to a forward end of which is a circumferential guide flange, and extending forwardly are two resiliently deformable arms terminating forwardly in inwardly directed barbs, and the cylindrical rear portion includes two diametrically opposed lugs which fit into respective slots formed in a cylindrical shell portion forming a part of a lancet release lever. - View Dependent Claims (14, 15)
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16. A lancing device, comprising:
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a housing adapted for receiving in use a replaceable lancet introduced into said housing, the housing comprising a forward housing part and a rearward housing part; a drive actuable to drive said lancet momentarily to project a tip of the lancet from the housing; and a nose portion having an aperture through which said lancet projects when fired, said nose portion being threadedly engaged with a forward end of said housing to allow a penetration depth of said lancet tip to be pre-set, the nose portion being captive on the forward housing part, wherein said nose portion is resiliently deformable and an application of pressure to opposed external regions of said nose portion causes bodily deformation of the nose portion between a position in which the nose portion is locked against rotation and a position in which the nose portion is free to rotate, the forward housing part slideably receives a lancet holder which has a cylindrical rear portion to a forward end of which is a circumferential guide flange, and extending forwardly are two resiliently deformable arms terminating forwardly in inwardly directed barbs, and the cylindrical rear portion steps in rearwardly to provide an inner cylindrical portion which defines a cylindrical latching surface. - View Dependent Claims (17, 18, 19, 20)
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Specification