GALVANI BIOELECTRONICS LIMITED

A method for use in making an electrode assembly comprises the steps of applying an electrode on a first layer of material; laser welding a lead to the electrode; applying an adhesive backfill over the electrode and the lead; and applying a second layer of material over the adhesive backfill and a portion of the first layer to prevent a leakage path between the electrode and the second layer.

An implantable pulse generator is provided that includes a power source, a wireless communication component configured to facilitate wireless communication with a non-implanted device and pulse-generating circuitry connected to the power source. The pulse-generating circuitry can be configured to identify, based on wireless communication with the non-implanted device, temporal and amplitude characteristics for electrical pulse stimuli and to trigger electrical output stimuli having the temporal and amplitude characteristics. The implantable pulse generation can further include one or more lead connections—each being shaped to engage a lead and electrically connected to the pulse-generating circuitry to enable the lead to deliver at least part of the electrical output stimuli triggered by the pulse-generating circuitry. The implantable pulse generator can further include one or more suture-engagement components, each including one or more holes each having a diameter that is at least 0.1 mm and less than 5 mm.

Devices and methods for the stimulation of neural signalling of an apical splenic nerve, the device having a transducer for placement on or around the apical splenic nerve, and a signal generator to generate a signal that stimulates or inhibits the neural activity of the apical splenic nerve to produce a physiological response. The transducer has at least one electrode, and the signal generator is a voltage or current source. The stimulation electrical signal has a frequency of between 1 Hz and 50 Hz.

Electrical stimulation of neural activity in the neural innervation of the spleen that is associated with neurovascular bundles provides a useful way to treat acute medical conditions, such as trauma, hemorrhaging and shock.

A neuromodulation device for measuring an evoked response comprising a first electrode; a second electrode, wherein the first and second electrodes are alternately configured as a stimulation electrode; a sensing electrode for sensing an evoked response to a stimulus pulse; and a controller configured to measure an evoked response at the sensing electrode after a stimulus pulse at a first stimulation electrode configuration and after a stimulus pulse at a second alternate stimulation electrode configuration, and to add said pair of measurements.

An extravascular neural interface is disclosed containing electrodes for neurostimulation of the vessel. The devices are housed in flexible substrates, each substrate having a spinal portion for routing leads/conductors into the device for connection to the electrodes. Extending from opposite sides of the spinal portion is a self-sizing inner flap that supports and positions the electrodes to be inward facing, i.e., extravascular designs, and one more rigid outer flap. The electrodes may be flexible multifilar coil electrodes.

A deployment tab for deploying a neural interface device, the deployment tab comprising a first portion configured, in use, to be positioned proximal to the neural interface device; and a connector, for releasably coupling the first portion to the neural interface device, the connector being anchored to the first portion.

A neurostimulation device 1 for non-destructively stimulating neural activity in a nerve 3 in proximity to a blood vessel 5. The neurostimulation device 1 comprises a catheter 7 for insertion into the blood vessel 5; a proximal electrode 11 offset from a distal electrode 9 along a length of the catheter 7; and an insulator 13 positioned between the proximal electrode 11 and the distal electrode 9 on the catheter 7. The insulator 13 has a contracted configuration in which the size of the insulator 13 allows the catheter 7 to travel inside the blood vessel 5. The insulator 13 has an expanded configuration in which the insulator 13 blocks blood flowing through the blood vessel between the proximal electrode 11 and the distal electrode 9. The neurostimulation device 1 comprises a stimulator 15 arranged to apply an electrical signal between the proximal electrode 11 and the distal electrode 9 when the insulator 13 is in the expanded configuration, thus inducing electrical activity in a wall portion of the blood vessel between the proximal and distal electrodes 9, 11. There is also an insulation portion between the distal electrode 9 and a distal end of the catheter 7 for offsetting the distal electrode 9 from a wall of the blood vessel 5.

A system for stimulation of a nerve and measuring impedance. The system includes a neural interface device including a plurality of electrodes; a voltage or current source operatively connected to at least a subset of the electrodes, wherein the voltage or current source is configured to generate an electrical signal to be applied to the electrodes; an impedance measuring module operatively connected to at least a subset of the electrodes, wherein the impedance measurement module is configured to measure the impedance between the electrodes; and a controller arranged to determine an amplitude of an action potential induced in the nerve, via the electrical signal, based on the measured impedance and to adjust the electrical signal in order to induce an action potential having a target amplitude.

Stimulation of neural activity in a nerve supplying the spleen, wherein the nerve is associated with a neurovascular bundle, can modulate pro-and anti-inflammatory molecules levels, thereby reducing inflammation and providing ways of treating inflammatory disorders. The invention provides improved ways of treating inflammatory disorders which minimize off-target effects.