摘要:
In one embodiment of the present invention a lancet is provided that has a sharpened distal tip, a shaft portion and a proximal drive head. The proximal drive head has a transverse dimension that is substantially larger than a transverse dimension of the shaft portion adjacent to the proximal drive head.
摘要:
A tissue penetration device and method of using same. The tissue penetration device may optionally include sampling and analyzing functions, which may be integrated. An embodiment provides control of a lancet used for sampling blood. Electric field coils or solenoids may drive the lancet using electromagnetic force. Advancement and retraction of a lancet may be controlled by a feedback loop monitoring the position and velocity of the lancet embodiments of the lancet driver can be configured to follow a predetermined tissue lancing profile. Embodiments of the invention include a lancet and method for using a lancet to maintain the patency of the wound tract once the lancet has cut into the skin.
摘要:
Blood samples can be collected without substantial contamination from ambient air, such that the blood sample may be analysed accurately for gaseous components such as oxygen and carbon dioxide. An embodiment of the device has integrated actuation, lancing, and sample acquisition components, which in some embodiments are miniatuized and/or disposable.
摘要:
A sampling module includes a module body portion with a lancet channel, a lancet slidably disposed within the lancet channel. A cover sheet is disposed over the lancet and a lancet channel that captures the lancet shaft in the lancet channel, and a sample reservoir for collection of a sample obtained by lancing a patient with the lancet.
摘要:
A device for use with a gripper is provided. A cartridge is provided that defines a plurality of cavities. A plurality of penetrating members are at least partially contained in the cavities of the cartridge. The penetrating members are slidably movable to extend outward from the cartridge to penetrate tissue. Each cavity has a longitudinal opening that provides access to an elongate portion of the penetrating member. A sterility barrier is coupled to the cartridge. The sterility barrier covers a plurality of the longitudinal openings. The sterility barrier is configured to be moved so that the elongate portion is accessed by the gripper without touching the barrier.
摘要:
A moving coil tissue penetration device includes a magnetic source that produces a magnetic field in a magnetically active region. A cylindrical coil is secured to a translation substrate and disposed at least partially within the magnetically active region. A sharpened member is configured to penetrate tissue and mechanically coupled to the translation substrate.
摘要:
A method of lancing the tissue of a patient provides a tissue penetration element with a tip configured to penetrate tissue and a shaft portion. The tissue penetration element is disposed in proximity to the tissue of the patient. The tissue penetration element is driven distally towards the tissue of the patient. Contact is made between the tip and the tissue of the patient. The tip is advanced into the tissue during a penetration stroke to a position of maximum inward displacement. The tissue penetration element is displaced proximally over a withdrawal stroke at an average velocity that is substantially lower than an average velocity of the tissue penetration element during the penetration stroke. The tip is removed from the tissue.
摘要:
A method of lancing the tissue of a patient provides a tissue penetration element with a tip configured to penetrate tissue. The tissue penetration element is disposed in proximity to the tissue of the patient. A lancing cycle is initiated. The lancing cycle advances the tip into the tissue during a penetration stroke and displaces the tissue penetration element proximally over a withdrawal stroke. Tissue data is acquired based on an interaction between the tissue penetration element and the tissue during at least a portion of the lancing cycle.
摘要:
A moving coil tissue penetration device includes a magnetic source that produces a magnetic field in a magnetically active region. A cylindrical coil is secured to a translation substrate and disposed at least partially within the magnetically active region. A sharpened member is configured to penetrate tissue and mechanically coupled to the translation substrate.
摘要:
A sampling module includes a module body portion with a lancet channel, a lancet slidably disposed within the lancet channel. A cover sheet is disposed over the lancet and a lancet channel that captures the lancet shaft in the lancet channel, and a sample reservoir for collection of a sample obtained by lancing a patient with the lancet.