Abstract:
The present invention generally relates to systems and methods for delivering and/or receiving a substance or substances such as blood, from subjects, e.g., from the skin and/or from beneath the skin. In one aspect, the present invention is generally directed to devices and methods for receiving or extracting blood from a subject, e.g., from the skin and/or from beneath the skin, using devices containing a fluid transporter (for example, one or more microneedles), and a storage chamber having an internal pressure less than atmospheric pressure prior to receiving blood. In some cases, the device may be self-contained, and in certain instances, the device can be applied to the skin, and activated to receive blood from the subject. The device, or a portion thereof, may then be processed to determine the blood and/or an analyte within the blood, alone or with an external apparatus. For example, blood may be received from the device, and/or the device may contain sensors or agents able to determine the blood and/or an analyte suspected of being contained in the blood. In another aspect, the present invention is generally directed to arrangements of skin insertion objects such as microneedles and methods of forming and arranging skin insertion objects. Other aspects of the present invention are directed at other devices for receiving blood (or other bodily fluids, e.g., interstitial fluid), kits involving such devices, methods of making such devices, methods of using such devices, and the like.
Abstract:
Reducing the volume or drag on skin or sharpness of the penetrating member entering the wound during the cutting process will reduce the pain associated with lancing, and result in less power desired for retraction of the penetrating member from the skin. A variety of other penetrating member configuration as shown in the application.
Abstract:
A tissue penetration device includes a magnetic source that produces a controllable magnetic field in a magnetically active region adjacent the magnetic source. A magnetic member is disposed at least partially in the magnetically active region. A permanent magnet is disposed at a proximal end of the magnetically active region for zeroing the position of the magnetic member while the tissue penetration device is inactive.
Abstract:
A lancet driver is provided wherein the driver exerts a driving force on a lancet during a lancing cycle and is used on a tissue site. The driver comprises of a drive force generator for advancing the lancet along a path into the tissue site, and a manual switch for a user interface input.
Abstract:
A microsensor and method of manufacture for a microsensor, comprising an array of filaments, wherein each filament of the array of filaments comprises a substrate and a conductive layer coupled to the substrate and configured to facilitate analyte detection. Each filament of the array of filaments can further comprise an insulating layer configured to isolate regions defined by the conductive layer for analyte detection, a sensing layer coupled to the conductive layer, configured to enable transduction of an ionic concentration to an electronic voltage, and a selective coating coupled to the sensing layer, configured to facilitate detection of specific target analytes/ions. The microsensor facilitates detection of at least one analyte present in a body fluid of a user interfacing with the microsensor.
Abstract:
A testing member for eliciting blood samples is provided that can be rotatably mounted inside a cartridge and having a lancet for lancing a body part of a user. The lancet can protrude from an edge of the testing member. The testing member also can have a second blood collection part, and second contact pads, where the second contact pads being electrically connected to the second blood collection part, the second blood collection part and second contact pads together being configured to facilitate an analysis of the quantity of blood in a first blood sample in the second blood collection part. A blood analysis part and first contact pads can be included, where the first contact pads are electrically connected to the blood analysis part, the blood analysis part and first contact pads together being configured to facilitate an analysis of a second blood sample in the blood analysis part.
Abstract:
An analyte monitoring system is provided. The system may include a housing (200) and a visual display (206) on the housing (200), the visual display (206) having at lease one visual indicator position next to a corresponding marking (208, 210, 212, 214 and 216) on the housing (200). The system may include a processor (60) driving the visual display (206), wherein the processor (60) runs software that is modifiable to provide a variable user interface on the visual display (206). The system may include a wireless communication to allow applets or programs to be down-loaded by the processor (60).
Abstract:
A body fluid sampling system is provided for use on a tissue site. A drive force generator is coupled to penetrating members. The penetrating members are at least partially housed in a penetrating member housing. The penetrating member housing has openings for the penetrating members. The penetrating members are launched along a launch path by the drive force generator through an opening in the penetrating member housing. Analyte sensors are housed in a analyte sensor housing. Each analyte sensor is associated with a penetrating member. The analyte sensor housing and the penetrating member housing are coupled to provide that each analyte sensor is positioned out of a launch path of a penetrating member. The analyte sensor housing includes desiccant pockets for receiving desiccant plugs.
Abstract:
Provided is a method for producing a puncture needle, which causes no significant pain during use such as when pierced. The method for producing the puncture needle includes the step of processing a pipe-like metallic base material having at one end a grinding surface obtained by machine work with plasma generated in an atmosphere filled with a mixed gas mainly including a main gas and a reaction gas.