Skin pricking apparatus
First Claim
Patent Images
1. A skin pricking apparatus comprising:
- a casing;
a lancet located within the casing;
a firing button arranged to accept a user applied force,said firing button being provided with an abutment surface arranged in use to contact a surface of the lancet upon movement of the button in order to transfer said applied force to the lancet, the user applied force being transferred via said abutment surface and said surface of the lancet so that the user applied force drives the lancet linearly through the casing, said abutment surface and said lancet surface being oriented obliquely with respect to the direction of travel of the lancet through the casing;
lancet retaining components arranged to prevent said linear movement of the lancet through the casing until the user applied force exceeds a predefined threshold force,said lancet retaining components comprising cooperating structural features on an inside of the casing and on an outer surface of the lancet respectively, said features arranged to be in abutment prior to said user applied force exceeding said predefined threshold force; and
a spring coupled between the lancet and the casing for biasing the lancet to a withdrawn position within the casing, the spring being extended by the application of the user applied force to the lancet.
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Accused Products
Abstract
A skin pricking apparatus including a casing 1, a lancet 15 located within the casing, a firing button 9 arranged to transfer a user applied force to the lancet 15 to drive the lancet through the casing 1, and lancet retaining element 12, 13, 23a,b arranged to substantially prevent movement of the lancet 15 through the casing 1 until the user applied force exceeds a predefined threshold force.
25 Citations
24 Claims
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1. A skin pricking apparatus comprising:
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a casing; a lancet located within the casing; a firing button arranged to accept a user applied force, said firing button being provided with an abutment surface arranged in use to contact a surface of the lancet upon movement of the button in order to transfer said applied force to the lancet, the user applied force being transferred via said abutment surface and said surface of the lancet so that the user applied force drives the lancet linearly through the casing, said abutment surface and said lancet surface being oriented obliquely with respect to the direction of travel of the lancet through the casing; lancet retaining components arranged to prevent said linear movement of the lancet through the casing until the user applied force exceeds a predefined threshold force, said lancet retaining components comprising cooperating structural features on an inside of the casing and on an outer surface of the lancet respectively, said features arranged to be in abutment prior to said user applied force exceeding said predefined threshold force; and a spring coupled between the lancet and the casing for biasing the lancet to a withdrawn position within the casing, the spring being extended by the application of the user applied force to the lancet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A skin pricking apparatus comprising:
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a casing; a lancet located within the casing and comprising a lancet driver plate; a firing button resiliently coupled to the casing and comprising a lancet driver member, whereby depression of the firing button brings surfaces of the lancet driver member and lancet driver plate into abutting contact and transfers a user applied force from the firing button to the lancet to drive the lancet linearly through the casing, the abutting surfaces being oriented obliquely with respect to the direction of travel of the lancet through the casing, the firing button being moveable, upon the application of the user applied force, in a direction substantially perpendicular to the direction of travel of the lancet through the casing; cooperating structural features on the casing and on the lancet which substantially prevent movement of the lancet through the casing until the user applied force exceeds a predefined threshold force; and a planar spring coupled between the lancet and the casing for biasing the lancet to a withdrawn position within the casing, the spring being extended by the application of the driving force to the lancet. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification