Abstract: An apparatus for removing a blockage from a body includes a tube, configured to advance to the blockage, and a shaft configured to pass through the tube. The shaft includes one or more first electrodes, each of which constitutes part of a wall of the shaft or is wrapped around the wall, and one or more second electrodes, each of which constitutes part of the wall or is wrapped around the wall. One or more first electrically-conductive elements are configured to connect the first electrodes to a first terminal of a power source, and one or more second electrically-conductive elements are configured to connect the second electrodes to a second terminal of the power source. Each of the first electrodes is configured to attract the blockage when a voltage is applied by the power source between the first electrode and one of the second electrodes. Other embodiments are also described.

Abstract: An apparatus (20) includes a tube (22), configured to advance to a blockage, and including a proximal hub (24) configured to connect to a suction-applying device such that, following the advancement of the tube to the blockage, a suction force generated by the suction-applying device is applied, via the tube, to the blockage, a shaft (26), including first and second electrically-conductive circumferential portions (28, 30), configured to pass through the tube, and first and second electrically-conductive elements (34, 38), configured to connect the first and second electrically-conductive circumferential portions to respective terminals of a power source (36).

Abstract: Described embodiments include an apparatus for removal of a thrombus from a body of a subject. The apparatus includes a first electrode, made of a first conductive metal, a second electrode, made of a second conductive metal that is different from the first conductive metal, and a voltage source, configured to apply a positive unipolar voltage between the first electrode and the second electrode while the first electrode is in contact with the thrombus, and while the second electrode is inside the body of the subject. Other embodiments are also described.

Abstract: An apparatus (20f) for removing a blockage from a body of a subject includes a reference electrode (26), configured for insertion into the body, an electrically-insulative element (68) covering the reference electrode, the electrically-insulative element being shaped to define a gap (72) that exposes a portion of the reference electrode, an active electrode (28) covering the electrically-insulative element, and an electrically-conductive element (32) passing through the reference electrode and electrically connected to the active electrode, the electrically-conductive element being configured to electrically connect the active electrode to a power source (34) such that application, by the power source, of a voltage between the active electrode and the reference electrode causes the active electrode to attract the blockage. Other embodiments are also described.

Abstract: An apparatus (20) includes a tube (22), configured to advance to a blockage, and including a proximal hub (24) configured to connect to a suction-applying device such that, following the advancement of the tube to the blockage, a suction force generated by the suction—applying device is applied, via the tube, to the blockage, a shaft (26), including first and second electrically—conductive circumferential portions (28, 30), configured to pass through the tube, and first and second electrically-conductive elements (34, 38), configured to connect the first and second electrically-conductive circumferential portions to respective terminals of a power source (36).

Abstract: A device for detecting neutrons comprising a base, a lateral surface and a cover, thereby providing a detector housing having a central longitudinal axis, wherein the interior of the housing is divided into n (n?2) cells wherein at least one of said cells is adapted to operate as neutron detection ion chamber by having at least one removable foil disposed parallel to said longitudinal axis, at least one removable foil positioned adjacent to, and essentially parallel with, a sector of the lateral surface, with said removable foils having neutron sensitive coating applied on at least one their faces, and an anode mounted in at least one cell bounded by said removable foils, with said housing constituting the cathode. The device is also useful for simultaneously detecting gamma irradiation and or producing radioisotopes.

Abstract: Apparatus for removal of a thrombus from a body of a subject includes an electrically-insulating tube, which includes a distal end having a circumferential wall that is shaped to define one or more perforations, configured for insertion into the body of the subject, an outer electrode, disposed over the distal end of the electrically-insulating tube, and configured to lie at least partly within the thrombus while the electrically-insulating tube is inside the body of the subject, and an inner electrode, configured to lie, within the tube, opposite the perforations, while the outer electrode lies at least partly within the thrombus. The outer electrode is configured to attract the thrombus while the outer electrode lies at least partly within the thrombus and the inner electrode lies opposite the perforations, when a positive voltage is applied between the outer electrode and the inner electrode such that electric current flows through the perforations.

Abstract: The present invention generally relates to a flexible catheter device capable of being introduced into body passages, withdraw fluids therefrom or introduce fluids thereinto, and which includes electrodes configured to apply electrical signals in the body passage for carrying out thrombus dissolution and/or thrombectomy, wherein one of said electrodes is designed to contact the thrombus material and remove it or dissolve it, and wherein the electrical voltage signals are a unipolar pulsatile voltage signal.

Abstract: Described embodiments include an apparatus for removal of a thrombus from a body of a subject. The apparatus includes a first electrode, made of a first conductive metal, a second electrode, made of a second conductive metal that is different from the first conductive metal, and a voltage source, configured to apply a positive unipolar voltage between the first electrode and the second electrode while the first electrode is in contact with the thrombus, and while the second electrode is inside the body of the subject. Other embodiments are also described.

Abstract: A radiotherapy system is disclosed. The radiotherapy system comprises an electron beam generator for generating an electron beam and a magnetic field generator for generating a magnetic field. In some embodiments of the present invention, the system further comprises a controller for controlling the electron beam and the magnetic field generators such that the electron beam is dynamically shifted and the magnetic field is dynamically redirected synchronously with the shifting.

Abstract: There is provided a system for the measurement of density of a raw material comprising at least one penetrating device, wherein said device includes at least one radiation source; at least one detector; at least one input device; and at least one output device.

Abstract: A radiotherapy system is disclosed. The radiotherapy system comprises an electron beam generator for generating an electron beam and a magnetic field generator for generating a magnetic field. In some embodiments of the present invention, the system further comprises a controller for controlling the electron beam and the magnetic field generators such that the electron beam is dynamically shifted and the magnetic field is dynamically redirected synchronously with the shifting.

Abstract: The present invention generally relates to a flexible catheter device capable of being introduced into body passages, withdraw fluids therefrom or introduce fluids thereinto, and which includes electrodes configured to apply electrical signals in the body passage for carrying out thrombus dissolution and/or thrombectomy, wherein one of said electrodes is designed to contact the thrombus material and remove it or dissolve it, and wherein the electrical voltage signals are a unipolar pulsatile voltage signal.