초록 ▼

A body fluid sampling system for use on a tissue site has a housing and a penetrating member driver at least partially within the housing. At least one disposable is within the housing. The disposable includes an analyte sensor in a sample chamber that is configured to receive body fluid from a wou

A body fluid sampling system for use on a tissue site has a housing and a penetrating member driver at least partially within the housing. At least one disposable is within the housing. The disposable includes an analyte sensor in a sample chamber that is configured to receive body fluid from a wound in tissue created by a penetrating member. A penetrating member is associated with the sample chamber. Each penetrating member and its associated sample chamber have a combined occupied volume of no more than about 5.0 cm3.

대표청구항 ▼

What is claimed is: 1. A body fluid sampling system for use on a tissue site, the system comprising: a housing; an electronic penetrating member driver at least partially within the housing; at least one disposable within the housing, the disposable including an analyte sensor in a sample chamber c

What is claimed is: 1. A body fluid sampling system for use on a tissue site, the system comprising: a housing; an electronic penetrating member driver at least partially within the housing; at least one disposable within the housing, the disposable including an analyte sensor in a sample chamber configured to receive body fluid from a wound in tissue created by a penetrating member; a penetrating member associated with the sample chamber the penetrating member and the associated sample chamber having a combined occupied volume of no more than about 5.0 cm3; a transport mechanism configured to engage the at least one disposable, wherein the penetrating member is operatively engaged with the penetrating member driver when moved into position by the transport mechanism, wherein the driver provides the force to advance the penetrating member; and a user interface on the housing and coupled to a programmable processor operatively programmed with software that has control instructions for the electronic penetrating member driver to keep a wound tract created by a penetrating member open for a sufficient time to provide for spontaneous flow of blood for sample capture into an associated sample chamber, wherein the control instructions are selected from at least one of, velocity of a penetrating member, velocity of a penetrating member in or out of target tissue and a dwell time of a penetrating member in the tissue site, wherein the processor provides the user interface with an option selected from at least one of, velocity of a penetrating member, a desired velocity profile, a velocity of a penetrating member into the target tissue, velocity of the penetrating member out of the target tissue, dwell time of the penetrating member in the target tissue, and a target tissue relaxation parameter, the processor determining a time and position of tissue contact and depth of penetration in response to knowing, distance of a penetrating member tip portion from the target tissue, acceleration and displacement of the penetrating member, and a start position of the penetrating member. 2. The system of claim 1, wherein the user interface is configured to provide a user with at least one input selected from, depth of a penetrating member penetration, velocity of a penetrating member, a desired velocity profile, a velocity of a penetrating member into the target tissue, velocity of the penetrating member out of the target tissue, dwell time of the penetrating member in the target tissue, and a target tissue relaxation parameter. 3. The system of claim 1, wherein the user interface provides at least one output to the user selected from, number of penetrating members available, number of penetrating members used, actual depth of penetrating member penetration on a target tissue, stratum corneum thickness, force delivered on a target tissue , energy used by the electronic penetrating member driver to drive a penetrating member into the target tissue, dwell time of the penetrating member, battery status, system status, consumed energy, speed profile of a penetrating member, information relative to contact of a penetrating member with target tissue before penetration by the penetrating member, and information relative to a change of speed of a penetrating member as it travels to the target tissue. 4. The system of claim 1, further comprising: a data interface configured to couple the body fluid sampling system to at least one of, support equipment with a data interface and the internet. 5. The system of claim 1, wherein a support equipment is selected from at least one of, a base station, home computer, central server, and main processing equipment for storing glucose level information. 6. The system of claim 4, wherein the data interface is selected from at least one of, Serial RS-232, modem interface, USB, HPNA, Ethernet, optical interface, IRDA, RF interface, cellular telephone interface, 2 way pager interface, parallel port interface standard, near field magnetic coupling, RF transceiver and a telephone systems. 7. The system of claim 1, wherein the user interface includes a real time clock and one or more alarms to provide a user with a reminder of when a next target penetrating event is needed. 8. The system of claim 1, wherein the processor is configured to assist in an adjustment of force applied to the electronic penetrating member driver in response to a target tissue parameter. 9. The system of claim 1, further comprising: a user interface processor coupled to the user interface. 10. The system of claim 1, further comprising: a memory for storing a target tissue parameter. 11. The system of claim 1, further comprising: a memory for storing data on target tissue penetrating performance. 12. The system of claim 1, further comprising: a memory for storing at least one of, a number of penetrating members used, number of target tissue penetrating events, time and date of the last selected number of target tissue penetrating events, time interval between alarm and target tissue penetrating event, stratum corneum thickness, time of day, energy consumed by the electronic penetrating member driver to drive a penetrating member into the target tissue, depth of penetrating member penetration, velocity of the penetrating member, a desired velocity profile, velocity of the penetrating member into the target tissue, velocity of the penetrating member out of the target tissue, dwell time of the penetrating member in the target tissue, a target tissue relaxation parameter, force delivered on the target tissue, battery status, system status, consumed energy, speed profile of the penetrating member as the penetrating penetrates and advances through the target tissue, information relative to contact of a penetrating member with target tissue before penetration by the penetrating member, information relative to a change of speed of a penetrating member as it travels to the target tissue, information relative to consumed sensors and information relative to consumed penetrating members. 13. The system of claim 1, wherein the user interface responds to audio commands. 14. The system of claim 13, wherein the user interface includes a sensor for detecting audio commands. 15. The system of claim 1, wherein the user interface relays information to a user via an audio device. 16. The system of claim 1, wherein the user interface relays information to a user via a wireless device.