Abstract: Systems and methods for managing an in-person transaction process are provided. In example embodiments, a network system receives, from a first user device, information regarding a service or an item. Using the received information, the network system generates an unpublished listing and associates the unpublished listing with a session identifier. The unpublished listing is temporarily stored to a datastore. The network system then generates a scannable code that provides a uniform resource identifier (URI) associated with the session identifier. The scannable code is presented on the first user device, whereby the scannable code can be scanned by a second user device to access, via the URI, a transaction user interface associated with the session identifier. In response to a request to access the transaction user interface triggered by the second user device scanning the scannable code, the transaction user interface is displayed on the second user device.

Abstract: Systems and methods for managing an in-person transaction process are provided. In example embodiments, a network system receives, from a first user device, information regarding a service or an item. Using the received information, the network system generates an unpublished listing and associates the unpublished listing with a session identifier. The unpublished listing is temporarily stored to a datastore. The network system then generates a scannable code that provides a uniform resource identifier (URI) associated with the session identifier. The scannable code is presented on the first user device, whereby the scannable code can be scanned by a second user device to access, via the URI, a transaction user interface associated with the session identifier. In response to a request to access the transaction user interface triggered by the second user device scanning the scannable code, the transaction user interface is displayed on the second user device.

Abstract: A diffusion/permeation cell, commonly referred to as a Franz cell, is provided for topical or transdermal drug delivery research and development in the pharmaceutical industry. The cell comprises a receptor container, a donor chamber, a quick clamping apparatus, and/or an assembly tool. Systems and methods provide a cost-effective diffusion cell, especially for use with an automatic diffusion release testing system.

Abstract: The present invention is a breath sample collecting mask comprising a mask body and a breath sample collector that provides non-invasive sample collection for detection of infectious diseases as well as lung and respiratory diseases, potentially before the onset of symptoms. The breath sample collector contains a filter that catches viral, bacterial, and other biomarker particles. The breath sample collector can be removed from the mask and placed into a tube for sample elution and further processing and analysis. The breath sample collecting mask may further comprise a thermometer, electrodes attached on the filter of the sample collector, and a microprocessor to monitor the mask wearer's condition.

Abstract: Systems and methods for managing an in-person transaction process are provided. In example embodiments, a network system receives, from a first user device, information regarding a service or an item. Using the received information, the network system generates an unpublished listing and associates the unpublished listing with a session identifier. The unpublished listing is temporarily stored to a datastore. The network system then generates a scannable code that provides a uniform resource identifier (URI) associated with the session identifier. The scannable code is presented on the first user device, whereby the scannable code can be scanned by a second user device to access, via the URI, a transaction user interface associated with the session identifier. In response to a request to access the transaction user interface triggered by the second user device scanning the scannable code, the transaction user interface is displayed on the second user device.

Abstract: Provided is a wearable smart drug-delivery system, including a power supply, a drug sac structure, a repository, and an electrode structure. The wearable smart drug-delivery system can accurately and precisely control the dosage and delivery time of an ionized pharmaceutical agent, reducing and preventing uncontrolled doses of transdermally delivered drugs. A plurality of drugs may be stored in one repository or a plurality of repositories in the wearable smart drug-delivery system, and may, at the same time or at different times, be delivered into the body by means of one or a plurality of power supplies; furthermore, storing the plurality of drugs in the plurality of repositories can prevent reactions and interferences between drugs.

Abstract: A device for transdermal drug delivery and administration of differing dosages at specific times of the day automatically pursuant to a pre-programmed dosage profile. The device includes a control and display unit, a two-part dispensing mechanism, a drug reservoir, an administration element, and a solvent removal element. The dispensing mechanism may be a peristaltic pump having an active portion with a motor, a roller, a mounting plate and a detachable passive portion with tubing and a housing. The motor and roller are mounted in the reusable portion of the delivery device with the control unit and a power source. The speed of the micromotor is controlled by the control unit, so that the turning speed of the roller is controlled which, in turn, controls the flow rate to the administration. The passive portion and drug reservoir are detachable along with the administration element for attaching a new dosing reservoir.

Abstract: The instant application provides a fluidic array device having an elastomeric body that provides easy fluidic control of the device. The elastomeric body may include plurality of intersecting row and column channels. Reactions may occur at the intersection spots formed by the intersecting channels. Pinching applied at suitable locations along the channels enables the channels to be opened or closed, and thus provides control of fluids pumped through the device. The surfaces of the channels and intersection spots may be engineered to have certain properties. In particular, the intersection spots may be nanoengineered to have surface properties differing from those of the channels, and thus reactions may be selectively controlled to occur only, or highly preferentially, in the intersection spots.

Abstract: The instant application provides a fluidic array device having an elastomeric body that provides easy fluidic control of the device. The elastomeric body may include plurality of intersecting row and column channels. Reactions may occur at the intersection spots formed by the intersecting channels. Pinching applied at suitable locations along the channels enables the channels to be opened or closed, and thus provides control of fluids pumped through the device. The surfaces of the channels and intersection spots may be engineered to have certain properties. In particular, the intersection spots may be nanoengineered to have surface properties differing from those of the channels, and thus reactions may be selectively controlled to occur only, or highly preferentially, in the intersection spots.

Abstract: Fabrication of a microstructure device includes assembling a mold component and a mold body to form a device mold for the microstructure device. The microstructure device is cast from the device mold, then the mold component is removed from the microstructure device. The microstructure device is then released from the mold body.

Abstract: This invention relates to array devices and methods for their fabrication. More specifically, the array devices have automatic flow control, probe array configuration, and dynamic chemical or biochemical reaction for rapid chemical or bio-molecule detection.

Abstract: The present invention provides a method for applying external counterpulsation to a patient, including detecting a blood-flow impedance signal, self-adaptive filter processing the detected blood-flow impedance signal, and adjusting inflation of an inflatable member based on the self-adaptive filter processing in order to optimize counterpulsation timing. A computer processes the signals and controls a fluid distribution device to distribute compressed fluid to a plurality of inflatable members based on said processed signals.

Abstract: The present invention provides a method for applying external counterpulsation to a patient, including detecting a blood-flow impedance signal, self-adaptive filter processing the detected blood-flow impedance signal, and adjusting inflation of an inflatable member based on the self-adaptive filter processing in order to optimize counterpulsation timing. The present invention further includes an external counterpulsation apparatus providing a high-frequency current source applied to the patient to produce an electrocardiographic signal and a blood flow impedance signal, as well as an amplifier-filter circuit to operably condition the electrocardiographic signal and a heart impedance signal amplifier receiving the blood flow impedance signal. A computer processes the signals and controls a fluid distribution device to distribute compressed fluid to a plurality of inflatable members based on said processed signals.

Abstract: Fabrication of a microstructure device includes assembling a mold component and a mold body to form a device mold for the microstructure device. The microstructure device is cast from the device mold, then the mold component is removed from the microstructure device. The microstructure device is then released from the mold body.

Abstract: The present invention provides a method for applying external counterpulsation to a patient, including detecting a blood-flow impedance signal, self-adaptive filter processing the detected blood-flow impedance signal, and adjusting inflation of an inflatable member based on the self-adaptive filter processing in order to optimize counterpulsation timing. The present invention further includes an external counterpulsation apparatus providing a high-frequency current source applied to the patient to produce an electrocardiographic signal and a blood flow impedance signal, as well as an amplifier-filter circuit to operably condition the electrocardiographic signal and a heart impedance signal amplifier receiving the blood flow impedance signal. A computer processes the signals and controls a fluid distribution device to distribute compressed fluid to a plurality of inflatable members based on said processed signals.

Abstract: The present invention provides a high efficiency external counterpulsation apparatus having accurate and reliable timing of inflation and deflation and reduced temperature of the pressurized gas, such that the gas flow temperature of the balloons is near to room temperature. The external counterpulsation apparatus also has a new gas distribution device and devices for monitoring the blood pressure and oxygen levels in the blood of a patient for improving safety. The present invention further provides a method for controlling the external counterpulsation apparatus.

Abstract: The present invention provides an excitation source which may be used, for example, in conjunction with the scanning of multi-channel electrophoresis chips or capillary arrays. The excitation source is comprised of a source of light, such as a laser beam. A beam expander, an acousto-optic deflector, and a filter are optically aligned with the source of light. A driver is connected to the acousto-optic deflector for controlling the angle of deflection. A system is disclosed which includes the excitation source, a detector for detecting fluorescence from a target chip, and a beam splitter or other device for optically connecting the excitation source to the chip and for optically connecting the chip to the detector. The excitation source may be based on an acousto-optic deflector, an electrooptic deflector, a piezoelectric deflector, or any other electronically controlled device.

Abstract: The present invention provides a high efficiency external counterpulsation apparatus having accurate and reliable timing of inflation and deflation and reduced temperature of the pressurized gas, such that the gas flow temperature of the balloons is near to room temperature. The external counterpulsation apparatus also has a new gas distribution device and devices for monitoring the blood pressure and oxygen levels in the blood of a patient for improving safety. The present invention further provides a method for controlling the external counterpulsation apparatus.

Abstract: The present invention provides a high efficiency external counterpulsation apparatus having accurate and reliable timing of inflation and deflation and reduced temperature of the pressurized gas, such that the gas flow temperature of the balloons is near to room temperature. The external counterpulsation apparatus also has a new gas distribution device and devices for monitoring the blood pressure and oxygen levels in the blood of a patient for improving safety. The present invention further provides a method for controlling the external counterpulsation apparatus.

Abstract: A device for transdermal drug delivery and administration of differing dosages at specific times of the day automatically pursuant to a pre-programmed dosage profile. The device includes a control and display unit, a two-part dispensing mechanism, a drug reservoir, an administration element, and a solvent removal element. The dispensing mechanism may be a peristaltic pump having an active portion with a motor, a roller, a mounting plate and a detachable passive portion with tubing and a housing. The motor and roller are mounted in the reusable portion of the delivery device with the control unit and a power source. The speed of the micromotor is controlled by the control unit, so that the turning speed of the roller is controlled which, in turn, controls the flow rate to the administration. The passive portion and drug reservoir are detachable along with the administration element for attaching a new dosing reservoir.