Blood lancet device for withdrawing blood for diagnostic purposes
First Claim
1. Blood lancet device for withdrawing blood for diagnostic purposes, comprising:
- a housing,a lancet holder, movable within the housing, for holding a lancet, said lancet being a component of a disposable item which comprises the lancet with a lancet body made of a plastic material, an exchangeable skin contact part and a lancet needle fixed in the lancet body, and which disposable item is intended for once only use and is inserted at an anterior end of the housing in a single operation,a lancet drive to drive the puncturing and retraction movement of the lancet holder with a lancet held therein,wherein the housing has an anterior end in the puncturing direction, receiving the exchangeable skin-contact part and the lancet,said exchangeable skin-contact part having a contact surface for pressing against the skin when using the blood lancet device and an outlet opening for the lancet,wherein said disposable item is configured such that the lancet can be inserted only together with the skin-contact part, andwherein the skin-contact part and lancet body are connected to one another and at the point of connection between the skin-contact part and the lancet body, a first predetermined breaking section is provided by means of which the skin-contact part and the lance body are separable from one another following insertion of the disposable item.
1 Assignment
0 Petitions
Accused Products
Abstract
Blood lancet device (1) for withdrawing blood from a patient for diagnostic purposes comprises a housing (10), a lancet holder (11) movable within the housing (10) for retaining a non-rotatable lancet (4) having a plastic lancet body (31), a lancet needle (33) fixed in the lancet body (31), a lancet drive (12) to move the lancet holder in a puncturing and retraction direction, an exchangeable skin-contact part (5) having an outlet opening (6) for the lancet (4) and a contact surface (42) for pressing against a patient'"'"'s skin. The skin-contact part (5) and lancet (4) form a unitary disposable item (3) which is intended for once-only use and is intended to be inserted at an anterior end (2) of the housing (10) in a single operation only as a unit with the skin-contact part (5) The skin-contact part (5) and the lancet body (31) are connected to one another through a first predetermined breaking section (52) to permit the skin-contact part (5) and the lance body (31) to be separable from one another following insertion of the disposable item (3). A second breaking section connects a protective needle cap to the lancet body and both breaking sections are severed by twisting of the protective cap.
586 Citations
26 Claims
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1. Blood lancet device for withdrawing blood for diagnostic purposes, comprising:
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a housing, a lancet holder, movable within the housing, for holding a lancet, said lancet being a component of a disposable item which comprises the lancet with a lancet body made of a plastic material, an exchangeable skin contact part and a lancet needle fixed in the lancet body, and which disposable item is intended for once only use and is inserted at an anterior end of the housing in a single operation, a lancet drive to drive the puncturing and retraction movement of the lancet holder with a lancet held therein, wherein the housing has an anterior end in the puncturing direction, receiving the exchangeable skin-contact part and the lancet, said exchangeable skin-contact part having a contact surface for pressing against the skin when using the blood lancet device and an outlet opening for the lancet, wherein said disposable item is configured such that the lancet can be inserted only together with the skin-contact part, and wherein the skin-contact part and lancet body are connected to one another and at the point of connection between the skin-contact part and the lancet body, a first predetermined breaking section is provided by means of which the skin-contact part and the lance body are separable from one another following insertion of the disposable item. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17)
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12. A disposable blood lancet device for insertion into a lancet driver for use in withdrawing blood for diagnostic purposes,
said disposable lancet device comprising a lancet body made of a plastic material, an exchangeable skin contact part and a lancet needle fixed in the lancet body, the exchangeable skin-contact part being attached to the lancet body, said exchangeable skin-contact part having a contact surface for pressing against the skin when using the disposable blood lancet device, wherein the disposable lancet device is intended for once-only use and can be inserted into an anterior end of a lancet driver in a single handling operation, wherein the skin-contact part and lancet body are connected to one another by a first predetermined breaking section by means of which the skin-contact part and the lancet body are separable from one another following insertion of the disposable item.
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21. A method for puncturing the skin of a patient for withdrawing blood for diagnostic purposes utilizing a lancet driver for driving a tip of a needle of a disposable lancet device into the patients skin comprising;
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inserting a disposable lancet device comprising a lancet body a lancet needle fixed in the lancet body, and an exchangeable skin-contact part as a unit into an anterior end of a housing of the lancet driver with the lancet body and needle being located within said housing of the said lancet drive and with a surface of the skin-contact part extending outwardly of the lancet driver housing, breaking a breaking section connecting the lancet body and the skin-contact part to disconnect the skin-contact part form the lancet body without removing the skin-contact part from being held by the housing, placing the outward surface of the skin-contact part against the skin of the patient without removing the skin contact part from being held by the housing; actuating the lancet driver to cause the lancet body to move toward the anterior end of the lancet driver housing and relative to the skin-contact part wherein a tip of the needle fixed in the lancet body passes through the skin-contact part and into the patients skin. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification