Electric lancet actuator
First Claim
Patent Images
1. An electric lancet actuator comprising:
- a lancet with a distal puncture end and proximal driver end housed within a stationary housing, said housing comprising an electric energy source for driving said lancet along a predetermined path;
a plurality of electric field coils,a metal core; and
a controller for selectively providing current from the electric energy source to the plurality of coils in sequence to move the metal core which in turn moves the lancet along the predetermined path.
5 Assignments
0 Petitions
Accused Products
Abstract
An electric lancet actuator and method of using same. An embodiment provides control of a lancet used for sampling blood by puncturing the skin. The lancet can be contained within a stationary housing which interacts with the proximal or driving end of lancet and allows the distal or front end of the lancet to protrude beyond the stationary housing and puncture the skin. Electric field coils or solenoids drive the lancet using either magnetic attraction or repulsion.
271 Citations
18 Claims
-
1. An electric lancet actuator comprising:
-
a lancet with a distal puncture end and proximal driver end housed within a stationary housing, said housing comprising an electric energy source for driving said lancet along a predetermined path; a plurality of electric field coils, a metal core; and a controller for selectively providing current from the electric energy source to the plurality of coils in sequence to move the metal core which in turn moves the lancet along the predetermined path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An electric lancet actuator comprising:
-
a lancet for puncturing a piece of skin to cause the formation of a droplet of blood; a source for generating electromagnetic energy to displace said lancet; and circuitry for alternating current between a first coil, a middle coil, and a third coil in the source to move said lancet.
-
-
18. A method for sampling blood through a piece of skin comprising the steps of:
-
advancing a lancet with electromagnetic force from an electric lancet actuator to propel a lancet into said skin by activating subsets of a plurality of coils in the actuator in sequence to advance the lancet; and retracting said lancet with electromagnetic force from said electric lancet actuator by reversing the sequence of coil activation.
-
Specification