Method and apparatus for body fluid sampling with hybrid actuation
First Claim
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1. A body fluid sampling device using a penetrating member to extract fluid from an anatomical feature, said device comprising:
- a plurality of penetrating members;
a penetrating member driver for moving each of the plurality of penetrating members inbound towards the anatomical feature;
a single sterility barrier that disposes over the plurality of penetrating members and is configured to maintain the plurality of penetrating members each in a sterile environment prior to launch of one of the plurality of penetrating members to the anatomical feature, the sterility barrier being in a non-contact relationship relative to a tip of each of the plurality of penetrating members;
a mechanical sterility barrier removal device configured to breach the sterility barrier and to open the sterile environment to provide that each of the plurality of penetrating members does not pierce any materials when a penetrating member is actuated toward a tissue site;
a user interface coupled to a processor with the processor being coupled to the penetrating member driver, wherein the processor is configured to provide the user interface with an option selected from at least one of, depth of a penetrating member penetration, velocity of a penetrating member, a desired velocity profile, a velocity of a penetrating member into the tissue site, velocity of the penetrating member out of the tissue site, dwell time of the penetrating member in the tissue site, and a target tissue profile,wherein said penetrating member driver in communication with the processor is configured to advance said penetrating member at an advancement velocity greater into the tissue site of the anatomical feature than a retraction velocity out of the tissue site of the anatomical feature with a dwell time sufficient to allow for a spontaneous flow of blood from the tissue site.
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Abstract
In one aspect, a body fluid sampling device is provided using a penetrating member to extract fluid from an anatomical feature. The device comprises a penetrating member actuator for moving the penetrating member inbound towards the anatomical feature and a non-spring based, penetrating member retractor for moving the penetrating member outbound away from the anatomical feature. The penetrating member actuator may be adapted to move the penetrating member at a velocity greater than a velocity achieved by the penetrating member retractor.
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Citations
23 Claims
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1. A body fluid sampling device using a penetrating member to extract fluid from an anatomical feature, said device comprising:
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a plurality of penetrating members; a penetrating member driver for moving each of the plurality of penetrating members inbound towards the anatomical feature; a single sterility barrier that disposes over the plurality of penetrating members and is configured to maintain the plurality of penetrating members each in a sterile environment prior to launch of one of the plurality of penetrating members to the anatomical feature, the sterility barrier being in a non-contact relationship relative to a tip of each of the plurality of penetrating members; a mechanical sterility barrier removal device configured to breach the sterility barrier and to open the sterile environment to provide that each of the plurality of penetrating members does not pierce any materials when a penetrating member is actuated toward a tissue site; a user interface coupled to a processor with the processor being coupled to the penetrating member driver, wherein the processor is configured to provide the user interface with an option selected from at least one of, depth of a penetrating member penetration, velocity of a penetrating member, a desired velocity profile, a velocity of a penetrating member into the tissue site, velocity of the penetrating member out of the tissue site, dwell time of the penetrating member in the tissue site, and a target tissue profile, wherein said penetrating member driver in communication with the processor is configured to advance said penetrating member at an advancement velocity greater into the tissue site of the anatomical feature than a retraction velocity out of the tissue site of the anatomical feature with a dwell time sufficient to allow for a spontaneous flow of blood from the tissue site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A body fluid sampling device using a penetrating member to extract fluid from an anatomical feature, said device comprising:
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a rotatable device having a circumferential wall section that runs cylindrically on an outer periphery; a plurality of penetrating members coupled to the rotatable device; a penetrating member driver, said driver selected from one of the following;
a motor and gear box, a nanomuscle, a pneumatic device, a liquid magnetic coil actuation device, a stepper motor, a micro-clutch device, and an inductive motor;a penetrating member coupler attached to said driver, said coupler releasably connecting a penetrating member to the driver; a sterility barrier that disposes over the plurality of penetrating members and is configured to maintain the plurality of penetrating members each in a sterile environment prior to launch of the penetrating member to the anatomical feature, the sterility barrier being in a non-contact relationship relative to a tip of the penetrating member; a mechanical sterility barrier removal device configured to breach the sterility barrier and to open the sterile environment to provide that the penetrating member does not pierce any materials when the penetrating member is actuated toward a tissue site; the plurality of penetrating members being arranged radially around an axis of rotation of the rotatable device; and a user interface coupled to a processor, wherein the processor is configured to provide the user interface with an option selected from at least one of, depth of a penetrating member penetration, velocity of the penetrating member, a desired velocity profile, a velocity of the penetrating member into the tissue site, velocity of the penetrating member out of the tissue site, dwell time of the penetrating member in the tissue site, and a target tissue profile with a dwell time sufficient to allow for a spontaneous flow of blood from the tissue site.
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Specification