Microstructure arrays and methods for using and manufacturing the arrays are described.

A container (200) for containing a coupling medium for transdermal delivery of a medicament and a transducer unit (100) for use with the container (200) are disclosed. The transducer unit (100) has a transducer (108) with an output face (110), and the container comprises a chamber (214) for receiving the coupling medium and a contact surface (212) for contacting the output face (110) of the transducer (108). The container (200) is attachable to the transducer unit (100) and is arranged such that, upon attachment of the container (200) to the transducer unit (100), an acoustic coupling for ultrasound transmission is formed between the output face (110) of the transducer (108) and the contact surface (212).

Provided is a therapeutic agent targeting and fixation medical device that precisely targets a therapeutic agent including a magnetic substance by using an optimized array of magnets in consideration of an affected area of a patient.

The present disclosure relates to relates to medication injection devices, and in particular to systems and methods for on-demand delivery of a non-liquid medication from a wearable medication injection device. Particularly, aspects of the present invention are directed to a device that includes a housing defining a chamber, a piston disposed within the chamber, a needle disposed within the chamber on a first side of the piston, an energetic material disposed within the chamber on a second side of the piston, and a medication strip disposed within the needle. The medication strip includes an injectable substance in a non-liquid form.

A graphene nano-steam generator and a beauty instrument are provided. The graphene nano-steam generator includes a coarse steam channel, a nano-steam channel and a high-voltage power supply device. The coarse steam channel is connected to a coarse steam manufacturing device and the nano-steam channel. The coarse steam channel is provided with a steam sieving device, and an end of the coarse steam channel is provided with a first electrode and a second electrode. The high-voltage power supply device is coupled to the first electrode and the second electrode. The high-voltage power supply device supplies high-voltage electricity to the first electrode and the second electrode, and forms a high-voltage arc discharge between the first electrode and the second electrode, thus the coarse steam molecular group flowing through is ionized by the high-voltage arc to generate a large amount of active nano-scale steam to be flowed out from the nano-steam channel.

A reverse electrodialysis device using a precipitation reaction, according to one embodiment of the present invention, comprises a first cell stack alternately forming solid salt chambers and precipitation chambers through cation-exchange membranes and anion-exchange membranes which are alternately provided, and a first water-soluble solid salt and a second water-soluble solid salt which are filled in the solid salt chambers, wherein the first water-soluble solid salt and the second water-soluble solid salt are alternately filled in the solid salt chambers, and can react with each other so as to generate a precipitate in neighboring precipitation chambers when water is supplied.

A reverse electrodialysis device using a precipitation reaction, according to one embodiment of the present invention, comprises a first cell stack alternately forming solid salt chambers and precipitation chambers through cation-exchange membranes and anion-exchange membranes which are alternately provided, and a first water-soluble solid salt and a second water-soluble solid salt which are filled in the solid salt chambers, wherein the first water-soluble solid salt and the second water-soluble solid salt are alternately filled in the solid salt chambers, and can react with each other so as to generate a precipitate in neighboring precipitation chambers when water is supplied.

Disclosed herein are devices for use in transplanting cells. The devices can include a housing defining a cavity; and a support structure separating the cavity into a cell chamber and a reservoir chamber, wherein the support structure comprises a membrane for fluid communication between the cell chamber and reservoir chamber. The cell chamber can define a first opening comprising a microstructure containing an array of micro-channels, each having a diameter to facilitate growth of vascular tissues; and an array of micro-reservoirs, each having a diameter to facilitate housing of cell aggregates individually. The membrane can define a surface area that is at least 50% of a total surface area of the support structure. Methods of treating a subject for a disease condition, such as diabetes, are also disclosed.

A tattoo ink dispenser includes a tube. The tube includes at least a removable top and a center compartment. The center compartment is a hollow structure that stores ink. The tube further includes a bottom portion of the tube with a central opening to place and hold a needle therein. The stored ink in the center compartment flows downwards and adheres to the needle to create a tattoo on a surface.

A dermal patch system for administering a pharmaceutical includes a vial that stores a pharmaceutical and a cartridge coupled to the vial. The cartridge includes a pull mechanism, a pump, a plurality of microneedles in communication with the vial. The microneedles are configured to move between an undeployed position to a deployed position. When pulled, the pull mechanism is configured to cause the microneedles to move from the undeployed position to the deployed position and cause the pump to pump the pharmaceutical from the vial and to the microneedles.