A61N1/0412

Device and method for large volume transfection

The invention relates to a device for applying an electric field to a suspension of cells, comprising at least one chamber which comprises at least one internal space (40) for holding the suspension, the internal space (40) comprising at least two segments (41, 42), wherein each segment (41, 42) comprises at least one electrode (43, 44) and wherein neighboring electrodes (43, 44) are separated from each other by at least one gap (47) which is at least partially filled with an insulating material (46), and wherein the edges of the electrodes (43, 44) facing each other within the internal space (40) are rounded. Rounding the electrodes' edges facing a neighboring electrode results in a significant reduction of field gradients and thus even of the risk of arcing. The invention further concerns a method, wherein voltage is applied to at least one active electrode (43, 44) while the electrodes (43, 44, 45) or electrode segments next and/or opposite to the active electrode (43, 44) are set to ground potential. Setting neighboring electrodes that surround the active electrode to ground potential results in decreased scattering of the electric field within the internal space so that the electrically active area is locally limited and the field lines are focused near the active electrode and thus control of the process is enhanced.

DEVICE FOR INTRACELLULAR TRANSPORT IN RESONANCE
20200121914 · 2020-04-23 ·

The invention pertains to a device for resonance intracellular transport wherein said device can be connected to two electrodes, wherein a first of said electrodes is configured to contain an active principle to be administered by an intracellular route, the device comprising a wave generator configured to generate a driving signal to be sent to said electrodes, wherein said driving signal comprises a plurality of packets grouped in trains of packets and in groups of trains, wherein each packet consists of a unidirectional signal resulting from the combination of a modulating signal and a carrier signal, wherein each train of packets consists of a series of packets, wherein each group of trains comprises a series of trains of packets, and said wave generator is configured to reverse the polarity of said trains of packets, characterised in that the device is configured to generate a driving signal having a first depth frequency of the carrier signal correlated to the depth of an organ or of a tissue to be treated and at least a second depth frequency correlated to the thickness of the said organ or tissue, and to generate resonance frequencies expressed by the repetition frequency of the packets, by the repetition frequency of the trains of packets and by the repetition frequency of the groups of trains.

Systems and methods for therapeutic electrical stimulation

A patch for a therapeutic electrical stimulation device includes a shoe connected to the first side of the patch, the shoe including a body extending in a longitudinal direction from a first end to a second end, and having first and second surfaces, the first end of the shoe defining at least two ports, and the first surface of the shoe defining a connection member. The patch also includes at least one conductor positioned in the ports of the first end of the shoe. The shoe is configured for sliding insertion into a receptacle defined by a controller so that the conductor is connected to the controller to deliver electrical current from the controller, through the conductor, and to the electrodes, and the connection member is at least partially captured by a detent defined by the controller in the receptacle to retain the shoe within the receptacle.

METHODS OF REDUCING ADVERSE EFFECTS OF NON-THERMAL ABLATION

The present invention provides systems, methods, and devices for electroporation-based therapies (EBTs). Embodiments provide patient-specific treatment protocols derived by the numerical modeling of 3D reconstructions of target tissue from images taken of the tissue, and optionally accounting for one or more of physical constraints or dynamic tissue properties. The present invention further relates to systems, methods, and devices for delivering bipolar electric pulses for irreversible electroporation exhibiting reduced or no damage to tissue typically associated with an EBT-induced excessive charge delivered to the tissue.

Transdermal Optogenetic Peripheral Nerve Stimulation
20200046968 · 2020-02-13 ·

A nerve in a mammal is optogenetically transduced, wherein the nerve is susceptible to stimulus by selective application of transdermal light, and a light source is applied to dermis of the mammal at or proximate to the optogenetically transduced nerve, to thereby stimulate the nerve. A wearable device for optogenetic motor control and sensation restoration of a mammal includes a wearable support, a power source at the wearable support, a controller at the wearable support and in electrical communication with a power source, and a transdermal light source coupled to the controller.

METHOD FOR TRANSDERMAL DELIVERY OF PERMEANT SUBSTANCES

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.

METHOD AND DEVICE FOR MINIMALLY INVASIVE IN VIVO TRANSFECTION OF ADIPOSE TISSUE USING ELECTROPORATION
20200016400 · 2020-01-16 ·

A method and device for electroporating adipocytes in the adipose layer of tissue, where the device includes a frame, a first electrode coupled to the frame having a first contact surface, a second electrode coupled to the frame having a second contact surface, and where the first contact surf ace and the second contact surface define a treatment zone therebetween. The method including positioning a fold of tissue between the first and second electrodes such that the treatment zone formed between the two electrodes includes an adipose layer of tissue and no skeletal muscle.

ELECTROPORATION SYSTEM WITH MICROMANIPULATOR AND PROBE
20190388675 · 2019-12-26 ·

Systems and methods are described for operating an electroporation system with single cell resolution. A micromanipulator assembly includes three orthogonally-positioned linear movement stages and a rotational stage to adjust the position of a tip of a micropipette. The system is configured to detect when the tip of the micropipette is placed in contact with an exterior surface of a cell based at least in part on a measured resistance from a first electrode positioned within the micropipette. In some implementations, the resistance is measured between the first electrode and a second electrode positioned at a defined distance from the tip of the micropipette and moved by the micromanipulator assembly with the micropipette. In some implementations, the control unit applies filtering and conditioning mechanisms to the measured resistance signal in order to detect contact between the tip of the pipette and the exterior surface of the cell. It also applies electroporation pulses of different shapes, durations, and frequencies.

TREATMENT OF INFLAMMATION BY SELECTIVE DMV CHOLINERGIC NEURON STIMULATION

Methods for electrical modulation of inflammation or serum TNF levels in a subject.

ELECTROTRANSFER THERAPEUTIC DELIVERY DEVICE, SYSTEM AND METHOD

Disclosed herein is a device capable of high efficiency DNA electrotransfer into cells via a single capacitive discharge. The principle of this system relates to the storage of a quantum of charge on a capacitor which is then discharged through an electrode array configured to produce an electric field having electric field potential gradients focused through a region by the array configuration and of sufficient in strength for efficient electrotransfer of DNA into cells. This DNA, or related ribonucleic acid molecules or indeed other charged molecules, upon entering the cells, can affect changes in biological function.