A61N1/0412

Microprobe for selective electroporation and manufacturing method of such a microprobe

The subject of the invention is a microprobe for selective electroporation comprising at least two metal electrodes (A) immersed in a glass rod (E), characterized in that the glass rod (E) made of a primary glass is 50 m to 2 mm in diameter, preferably 50 m to 500 m, the metal electrodes (A) made of a metal alloy are formed as rods with diameter of 1 m to 100 m, preferably 20 m to 30 m, wherein endings of those rods are exposed, wherein the primary glass and the metal alloy are matched in such manner that dilatometric softening temperature DTM of the primary glass is highly similar to the temperature of melting for the metal alloy. The invention also includes a method of manufacturing of such a microprobe.

METHODS AND APPARATUS FOR BILATERAL RENAL NEUROMODULATION

Methods and apparatus are provided for bilateral renal neuromodulation, e.g., via a pulsed electric field, via a stimulation electric field, via localized drug delivery, via high frequency ultrasound, via thermal techniques, etc. Such neuromodulation may effectuate irreversible electroporation or electrofusion, necrosis and/or inducement of apoptosis, alteration of gene expression, action potential attenuation or blockade, changes in cytokine up-regulation and other conditions in target neural fibers. In some embodiments, neuromodulation is applied to neural fibers that contribute to renal function. In some embodiments, such neuromodulation is performed in a bilateral fashion. Bilateral renal neuromodulation may provide enhanced therapeutic effect in some patients as compared to renal neuromodulation performed unilaterally, i.e., as compared to renal neuromodulation performed on neural tissue innervating a single kidney.

DEVICES AND METHODS FOR TREATING INFECTED TISSUE

A system for treating infected tissue includes an applicator device. The applicator device has an electrode pair spaced apart and is positioned against infected tissue. An electrical power supply to generate a pulsed electric field across the electrode pair, resulting in the application of a pulsed electric field through the infected tissue. The pulsed electric field has a field strength within a range that when the pulsed electric field is applied, pores are formed in membranes of cells of the infected tissue. A method for treating infected tissue is disclosed. The method includes positioning an electrode pair against the infected tissue; applying a pulsed electric field across the electrode pair. The pulsed electric field has a field strength that when applied, pores are formed in membranes of cells of the infected tissue; and applying an antimicrobial agent into or onto the infected tissue when the pulsed electric field is applied.

Compact subnanosecond high voltage pulse generation system for cell electro-manipulation

Disclosed are methods and systems for subnanosecond rise time high voltage (HV) electric pulse delivery to biological loads. The system includes an imaging device and monitoring apparatus used for bio-photonic studies of pulse induced intracellular effects. The system further features a custom fabricated microscope slide having micro-machined electrodes. A printed circuit board to interface the pulse generator to the micro-machined glass slide having the cell solution is disclosed. An low-parasitic electronic setup to interface with avalanche transistor-switched pulse generation system is also disclosed. The pc-board and the slide are configured to match the output impedance of the pulse generator which minimizes reflection back into the pulse generator, and minimizes distortion of the pulse shape and pulse parameters. The pc-board further includes a high bandwidth voltage divider for real-time monitoring of pulses delivered to the cell solutions.

DEVICE AND METHOD FOR LARGE VOLUME TRANSFECTION

The invention relates to a device (1) for applying an electric field to a suspension of cells, cell derivatives, organelles, sub-cellular particles and/or vesicles, comprising at least one chamber (6) which comprises at least two electrodes (4), and at least one separating element (13) which is movable within the chamber (6) between two terminal points (14, 15) and, if it is in a position between the terminal points (14, 15), separates at least one first compartment (26) of the chamber (6) from at least one second compartment (27) of the chamber (6). According to the invention each compartment (26, 27) is designed to hold the suspension and comprises at least one port (7, 8, 10, 11) for charging or discharging the suspension, so as to discharge an aliquot of the suspension from the chamber (6) and at the same time charge a further aliquot of the suspension into the chamber (6), wherein the separating element (13) is moved in a second direction opposite to a first direction, and wherein the separating element (13) separates the aliquots from each other.

METHODS OF TREATING BACTERIAL INFECTIONS
20190126027 · 2019-05-02 ·

Methods for treating a bacterial infections, including drug-resistant bacterial infections, of a patient are described. The methods may include applying a non-thermal plasma and a liquid simultaneously to infected tissue of the patient, the liquid comprising at least one antibiotic and/or antiseptic and a penetration enhancing agent; wherein the non-thermal plasma has a frequency between 200 kHz and 600 kHz.

SUPPORT FOR TRANSDERMAL APPLICATION OF SUBSTANCES
20190105486 · 2019-04-11 ·

The invention relates to a support with electrodes (20) and a gel containing active ingredients, for transdermal application of the latter. The support consists of a base layer (10) made of flexible material (non-woven fabric, PET, PVC, etc.), whereas the electrodes are made of a conductive material such as carbon, graphene, germanene or the like, which is impressed onto the support by hot or cold pressing, silk-screening, ink jet or the like. The electrodes can be connected to a power supply unit via a USB connector or the like.

CONTROLLED IRREVERSIBLE ELECTROPORATION
20190099214 · 2019-04-04 ·

Electrical pulses are applied to tissue in a manner which destroys targeted cells such as cancerous cells while sparing non-targeted cells such as nerve cells. The electrical pulses are controlled within ranges for voltage, wattage and duration of application. Multiple pulses or groups of pulses may be applied to obtain a desired result while maintaining any temperature increase below a level which destroys cells.

Methods and apparatus for renal neuromodulation

Methods and apparatus are provided for renal neuromodulation using a pulsed electric field to effectuate electroporation or electrofusion. It is expected that renal neuromodulation (e.g., denervation) may, among other things, reduce expansion of an acute myocardial infarction, reduce or prevent the onset of morphological changes that are affiliated with congestive heart failure, and/or be efficacious in the treatment of end stage renal disease. Embodiments of the present invention are configured for percutaneous intravascular delivery of pulsed electric fields to achieve such neuromodulation.

REMOVABLE MANDIBULAR PHARMACEUTICAL DELIVERY DEVICE
20190091061 · 2019-03-28 · ·

An oral appliance for the treatment of sleep disorders, such as obstructive sleep apnea, in a user is presented. The oral appliance may include a mouthpiece configured to receive a user's dentition. The mouthpiece may include an oxygen sensor, a pressure sensor, an airflow sensor, an actigraphy sensor, a noise detector, and at least one stimulator for providing stimulation to a user's tongue in the event of decreased oxygen saturation levels, increased pressure applied to occlusal surfaces of the user's dentition, decreased actual airflow levels and/or increased noise levels. The mouthpiece may be provided with pharmaceutical compound reservoirs that deliver pharmaceutical compounds to the oral mucosa of the user, which compounds treat symptoms of sleep apnea. The mouthpiece may further include a microprocessor that receives data from the oxygen sensor, pressure sensor, airflow sensor, actigraphy sensor and noise detector, and activates the at least one stimulator and/or pharmaceutical compound reservoirs.