Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties
First Claim
Patent Images
1. A lancing device comprising:
- a lancet with a shaft having a proximal driving end and a distal lancing end;
a lancet driver coupled to said lancet for longitudinal displacement of said lancet; and
a lancet controller coupled to said lancet driver and configured to change a magnitude of force exerted on the lancet during a lancing cycle, said lancet controller including a feedback loop for monitoring a longitudinal displacement and velocity to provide a controlled acceleration of said lancet and for modulating the lancet driver to provide a predetermined tissue lancing profile having characteristic phases for lancet advancement and retraction; and
a position sensor coupled to the lancet and to the lancet controller, the position sensor and the lancet controller configured to measurea distance from an initialization point to a point of contact of the lancet to a target tissue surface, the lancet being retracted by the driver to the initialization point with a distance to the target tissue being measured and a depth of penetration of the lancet determined.
4 Assignments
0 Petitions
Accused Products
Abstract
A lancing device, an embodiment of which controls the advancement and retraction of a lancet by monitoring the position of the lancet in conjunction with a lancet controller which incorporates a feedback loop for modulating the lancet driver to follow a predetermined tissue lancing profile.
-
Citations
19 Claims
-
1. A lancing device comprising:
-
a lancet with a shaft having a proximal driving end and a distal lancing end; a lancet driver coupled to said lancet for longitudinal displacement of said lancet; and a lancet controller coupled to said lancet driver and configured to change a magnitude of force exerted on the lancet during a lancing cycle, said lancet controller including a feedback loop for monitoring a longitudinal displacement and velocity to provide a controlled acceleration of said lancet and for modulating the lancet driver to provide a predetermined tissue lancing profile having characteristic phases for lancet advancement and retraction; and a position sensor coupled to the lancet and to the lancet controller, the position sensor and the lancet controller configured to measure a distance from an initialization point to a point of contact of the lancet to a target tissue surface, the lancet being retracted by the driver to the initialization point with a distance to the target tissue being measured and a depth of penetration of the lancet determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification