Abstract: Lancet assemblies for puncturing the skin and creating an incision. Upon activation, the disclosed assemblies are configured to move through a firing sequence in which a puncturing instrument extends through an aperture in the device and then is retracted back into a housing of the device and cannot be re-fired. The assemblies are designed so that the aperture in contact with the incision site does not move relative to the incision site during the firing sequence. Accordingly, the tolerance of the assembly is reduced and the reliability of the incisions created by the assembly, including the depth and width of such incisions, is increased.

Abstract: A one-time/single use safety lancet system includes a body; a spring coupled to the body; a keeper having a deformable member; and a core for supporting a lancet and having an end coupled to the spring. The core further has a first latch for engaging the deformable member when the lancet system is in an armed state. The deformable member of the keeper is fractured after one use of the lancet system which prevents any subsequent arming of the lancet system. The keeper may be made part of the lancet body. The core may include a second latch, wherein the second latch permanently deforms or fractures the deformable member of the keeper after the single, one-time arming of the safety lancet system.

Abstract: A one-time/single use safety lancet system includes a body; a spring coupled to the body; a keeper having a deformable member; and a core for supporting a lancet and having an end coupled to the spring. The core further has a first latch for engaging the deformable member when the lancet system is in an armed state. The deformable member of the keeper is fractured after one use of the lancet system which prevents any subsequent arming of the lancet system. The keeper may be made part of the lancet body. The core may include a second latch, wherein the second latch permanently deforms or fractures the deformable member of the keeper after the single, one-time arming of the safety lancet system.

Abstract: Lancet assemblies for puncturing the skin and creating an incision. Upon activation, the disclosed assemblies are configured to move through a firing sequence in which a puncturing instrument extends through an aperture in the device and then is retracted back into a housing of the device and cannot be re-fired. The assemblies are designed so that the aperture in contact with the incision site does not move relative to the incision site during the firing sequence. Accordingly, the tolerance of the assembly is reduced and the reliability of the incisions created by the assembly, including the depth and width of such incisions, is increased.