摘要:
An integrated device for poration of biological tissue, harvesting a biological fluid from the tissue, and analysis of the biological fluid. The device comprises a tissue-contacting layer having an electrically or optically heated probe to heat and conduct heat to the tissue to form at least one opening, such as a micropore to collect biological fluid from the opening, and a detecting layer responsive to the biological fluid to provide an indication of a characteristic of the biological fluid, such as the concentration of an analyte in interstitial fluid. In the embodiment in which, the probe comprises a photosensitizing assembly designed for the uniform application of a photosensitizing material, such as, for example, a dye or a pigment, to a tissue, e.g., the stratum corneum. In one embodiment, the photosensitizing assembly comprises photosensitizing material combined with a carrier, such as, for example, an adhesive or an ink, and the resulting combination is applied to a substrate, such as, for example, an inert polymeric substrate to form a photosensitizing assembly. In another embodiment, the photosensitizing assembly comprises photosensitizing material incorporated into a film-forming polymeric material.
摘要:
An integrated device (100, 200, 300, 400, 600, 1000) for harvesting a biological fluid from the tissue and analysis of the biological fluid. The device comprises a layer having a porating element disposed thereon to form at least one opening in the tissue. Biological fluid is harvested from the opening of the tissue and placed in contact with a sensor incorporated in the integrated device. The sensor is responsive to the biological fluid to provide an indication of a characteristic of the biological fluid, such as the concentration of an analyte in interstitial fluid. The porating element may comprise one or more heat conducting elements that are either optically or electrically heated, or one or more mechanical porating elements.
摘要:
A method for delivering permeant substances transdermally into a membrane of an animal includes forming a least one delivery opening in the skin tissue, with the at least one delivery opening having a mean opening depth of between about 40 and about 90 microns.
摘要:
The invention provides for a transdermal drug delivery device for forming a drug delivery patch system comprising: a) an actuator (100) comprising: i) an outer body defining a top of the actuator, the outer body containing a cavity; ii) a controller board comprising driving electronics and a battery, the controller board being positioned within the cavity; and iii) an interface connection port for receiving a porator array, the interface connection port containing an anode and a cathode; b) a reservoir patach attached to the an extention tub, the reservoir patch being applied to the microporated area of a tissue membrane after poration.
摘要:
A method for delivering permeant substances transdermally into a membrane of an animal includes forming at least one delivery opening in the skin tissue, with the at least one delivery opening having a mean opening depth of between about 40 and about 90 microns.
摘要:
The invention provides for improved devices and methods for forming openings in a biological membrane for delivering substances into an animal through the biological membrane for treatment applications, or extracting substances from the animal through the biological membrane for monitoring or other diagnosis applications and for increased transmembrane flux.
摘要:
The invention provides for improved devices and methods for forming openings in a biological membrane for delivering substances into an animal through the biological membrane for treatment applications, or extracting substances from the animal through the biological membrane for monitoring or other diagnosis applications and for increased transmembrane flux.
摘要:
A transdermal permeant delivery system for delivery of at least one permeant composition into a tissue membrane of a subject including a disposable substrate having at least a portion of a bottom surface of a first release liner connected to an upper surface of the substrate and a patch having a backing layer and a reservoir that is selectively removable from the top surface of the first release liner. In a connected position, a first portion of the backing layer of the patch is releaseably mounted to a top surface of the first release liner in spaced registration with a poration area of the substrate.
摘要:
A device for forming at least one opening in a select area of a biological membrane for transmembrane transport, comprising: a) a substrate having an upper surface and a lower surface; b) a pyrotechnic element disposed on either the upper or lower surface of said substrate, the pyrotechnic element having an explosive potential sufficient to form such artificial opening; and c) a trigger device coupled to said pyrotechnic element, wherein said pyrotechnic element is combined with a permeant and/or an enhancer.