Method and apparatus for penetrating tissue
A tissue penetrating system has a housing member. A plurality of penetrating members are positioned in the housing member. A tissue stabilizing member is coupled to the housing. A penetrating member sensor is coupled to the plurality of penetrating members. The penetrating member sensor is configured to provide information relative to a depth of penetration of a penetrating member through a skin surface.
1 . A tissue penetrating system, comprising:
a housing member;
a plurality of penetrating members positioned in the housing member,
a tissue stabilizing member coupled to the housing and configured to enhance fluid flow from the target tissue to a sample chamber: and
a processor with program instructions to determine if a penetrating member has made contact with a target tissue by a parameter that is measured prior to initiation of a lancing cycle.
2 . The system of claim 1 , wherein the tissue stabilizer member is configured to apply a force to a target tissue and cause the target tissue to press in an inward direction relative to the housing member.
3 . The system of claim 1 , wherein the tissue stabilizer member creates a stretching of a skin surface.
4 . The system of claim 1 , wherein the tissue stabilizer member includes a plurality of protrusions.
5 . The system of claim 1 , wherein the tissue stabilizing device applies a stimulation to a target tissue.
6 . The system of claim 1 , wherein the processor includes a memory for storage and retrieval of a set of penetrating member profiles utilized with the penetrating member driver.
7 . The system of claim 1 , wherein the processor is utilized to monitor position and speed of a penetrating member as the penetrating member moves in a first direction.
8 . The system of claim 1 , wherein the processor is utilized to adjust an application of force to a penetrating member to achieve a desired speed of the penetrating member.
9 . The system of claim 1 , wherein the processor is utilized to adjust an application of force to a penetrating member when the penetrating member contacts a target tissue so that the penetrating member penetrates the target tissue within a desired range of speed.
10 . The system of claim 1 , wherein the processor is utilized to monitor position and speed of a penetrating member as the penetrating member moves in the first direction toward a target tissue, wherein the application of a launching force to the penetrating member is controlled based on position and speed of the penetrating member.
11 . The system of claim 1 , wherein the processor is utilized to control a withdraw force to the penetrating member so that the penetrating member moves in a second direction away from the target tissue.
12 . The system of claim 1 , wherein in a first direction the penetrating member moves toward the target tissue at a speed that is different than a speed at which the penetrating member moves away from the target tissue.
13 . The system of claim 12 , wherein in the first direction the penetrating member moves toward the target tissue at a speed that is greater than a speed at which the penetrating member moves away from the target tissue.
14 . The system of claim 12 , wherein a speed of a penetrating member in the first direction is the range of 0.05 to 60 m/sec.
15 . The system of claim 12 , wherein a speed of a penetrating member in the first direction is the range of 0.1 to 20.0 m/sec.
16 . The system of claim 12 , wherein a speed of a penetrating member in the first direction is the range of 1.0 to 10.0 m/sec.
17 . The system of claim 12 , wherein a speed of a penetrating member in the first direction is the range of 3.0 to 8.0 m/sec.
18 . The system of claim 1 , wherein a dwell time of the penetrating member in the target tissue below a skin surface is in the range of 1 microsecond to 2 seconds.
19 . The system of claim 1 , wherein a dwell time of the penetrating member in the target tissue below a skin surface is in the range of 500 milliseconds to 1.5 second.
20 . The system of claim 1 , wherein a dwell time of the penetrating member in the target tissue below a skin surface is in the range of 100 milliseconds to 1 second.
21 . A tissue penetrating system, comprising:
a housing member;
a plurality of penetrating members positioned in the housing member,
a tissue stabilizing member coupled to the housing and configured to enhance fluid flow from the target tissue to a sample chamber: and
a processor with program instructions that determines when a penetrating member has made contact with a skin tissue when an end tip of the penetrating member has moved a predetermined distance with respect to its initial position in the housing.
22 . The system of claim 21 , wherein the tissue stabilizer member is configured to apply a force to a target tissue and cause the target tissue to press in an inward direction relative to the housing member.
23 . The system of claim 21 , wherein the tissue stabilizer member creates a stretching of a skin surface.
24 . The system of claim 21 , wherein the tissue stabilizer member includes a plurality of protrusions.
25 . The system of claim 21 , wherein the tissue stabilizing device applies a stimulation to a target tissue.
26 . The system of claim 21 , wherein the processor includes a memory for storage and retrieval of a set of penetrating member profiles utilized with the penetrating member driver.
27 . The system of claim 21 , wherein the processor is utilized to monitor position and speed of a penetrating member as the penetrating member moves in a first direction.
28 . The system of claim 21 , wherein the processor is utilized to adjust an application of force to a penetrating member to achieve a desired speed of the penetrating member.
29 . The system of claim 21 , wherein the processor is utilized to adjust an application of force to a penetrating member when the penetrating member contacts a target tissue so that the penetrating member penetrates the target tissue within a desired range of speed.
30 . The system of claim 21 , wherein the processor is utilized to monitor position and speed of a penetrating member as the penetrating member moves in the first direction toward a target tissue, wherein the application of a launching force to the penetrating member is controlled based on position and speed of the penetrating member.
31 . The system of claim 21 , wherein the processor is utilized to control a withdraw force to the penetrating member so that the penetrating member moves in a second direction away from the target tissue.
32 . The system of claim 21 , wherein in a first direction the penetrating member moves toward the target tissue at a speed that is different than a speed at which the penetrating member moves away from the target tissue.
33 . The system of claim 21 , wherein in the first direction the penetrating member moves toward the target tissue at a speed that is greater than a speed at which the penetrating member moves away from the target tissue.
34 . The system of claim 21 , wherein a speed of a penetrating member in the first direction is the range of 0.05 to 60 m/sec.
35 . The system of claim 21 , wherein a speed of a penetrating member in the first direction is the range of 0.1 to 20.0 m/sec.
36 . The system of claim 21 , wherein a speed of a penetrating member in the first direction is the range of 1.0 to 10.0 m/sec.
37 . The system of claim 21 , wherein a speed of a penetrating member in the first direction is the range of 3.0 to 8.0 m/sec.
38 . The system of claim 21 , wherein a dwell time of the penetrating member in the target tissue below a skin surface is in the range of 1 microsecond to 2 seconds.
39 . The system of claim 21 , wherein a dwell time of the penetrating member in the target tissue below a skin surface is in the range of 500 milliseconds to 1.5 second.
40 . The system of claim 21 , wherein a dwell time of the penetrating member in the target tissue below a skin surface is in the range of 100 milliseconds to 1 second.