Method and apparatus for penetrating tissue
First Claim
Patent Images
1. A body fluid sampling system for use on a tissue site, the system comprising:
- a housing;
a controllable drive force generator with an electronic brake;
a plurality of penetrating members operatively coupled to said controllable drive force generator, said controllable drive force generator moving each of said members along a path out of a housing having a penetrating member exit into said tissue site, stopping in said tissue site, and withdrawing out of said tissue site;
a processor coupled to the controllable drive force generator;
providing for controlled velocity and a controlled depth of penetration of a penetrating member;
a plurality of analyte detecting members in a sample chamber, each sample chamber configured to receive body fluid from a wound in tissue created by a penetrating member, and each analyte detecting member configured to determine at least one analyte level using a body fluid sample of less than about 1 microliter;
a support member disc with a surface that includes said penetrating members, said support member disc being movable to move each of said penetrating members to a launch position associated with said force generator; and
said controllable drive force generator and processor configured to provide a controllable velocity trajectory into the tissue and out of said tissue and controllable depth of penetration of a penetrating member, the processor modulating power to the controllable drive force generator through a signal generator so that a velocity profile of the penetrating member does not exceed a predetermined profile by more than a preset error limit.
2 Assignments
0 Petitions
Accused Products
Abstract
A body fluid sampling system for use on a tissue site includes a single drive force generator. A plurality of penetrating members are operatively coupled to the force generator. The force generator moves each of the members along a path out of a housing with a penetrating member exit, into the tissue site, stops in the tissue site, and withdraws out of the tissue site. A flexible support member couples the penetrating members to define a linear array. The support member is movable and configured to move each of the penetrating members to a launch position associated with the force generator.
-
Citations
14 Claims
-
1. A body fluid sampling system for use on a tissue site, the system comprising:
-
a housing; a controllable drive force generator with an electronic brake; a plurality of penetrating members operatively coupled to said controllable drive force generator, said controllable drive force generator moving each of said members along a path out of a housing having a penetrating member exit into said tissue site, stopping in said tissue site, and withdrawing out of said tissue site; a processor coupled to the controllable drive force generator;
providing for controlled velocity and a controlled depth of penetration of a penetrating member;a plurality of analyte detecting members in a sample chamber, each sample chamber configured to receive body fluid from a wound in tissue created by a penetrating member, and each analyte detecting member configured to determine at least one analyte level using a body fluid sample of less than about 1 microliter; a support member disc with a surface that includes said penetrating members, said support member disc being movable to move each of said penetrating members to a launch position associated with said force generator; and said controllable drive force generator and processor configured to provide a controllable velocity trajectory into the tissue and out of said tissue and controllable depth of penetration of a penetrating member, the processor modulating power to the controllable drive force generator through a signal generator so that a velocity profile of the penetrating member does not exceed a predetermined profile by more than a preset error limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification