Abstract: Embodiments of a corpectomy method, comprising the steps of: providing a distractor unit comprising at least a first hydraulic cylinder configured to removably receive a piston of a predetermined length during a surgical procedure; providing the piston; providing a plurality of bone screws; affixing a first bone screw of the plurality of bone screws to a first vertebrae of a spine and a second bone screw of the plurality of bone screws to a second vertebrae of the spine; mounting the distractor unit onto the first bone screw and the second bone screw; and extending the hydraulic piston of the distractor unit to cause the first vertebrae and the second vertebrae to move away from each other are disclosed.

Abstract: Embodiments of the present disclosure are directed to a systems, devices and methods for displacing bones of a living mammal. In some embodiments, a device is provided which includes at least two engagement elements positioned at a distance from each other for engagement with two separate bones Each of the engagement elements may be carried by a support part which in turn is supported in a support portion of a distance unit (5). The said support part and support portion form a support unit, where each engagement element extends at an angle (?) with respect to a straight line (L) between two support units. At least one of the support units includes an arrangement for altering the angle which includes an actuating unit maneuverable for adjustment of the angle (?). Some embodiments of the disclosure are directed to a system for engagement with vertebrae including such devices (noted above), as well as uses of the device and associated methods of treatment.

Abstract: A system and a method for making an injectable mixture using at least one first pulverulent component and a second liquid component with a first piston/cylinder arrangement with a cylinder with an axial extension and a piston, wherein the cylinder includes a measured amount of the pulverulent component, a separate reservoir including a corresponding measured amount of the liquid component, and a transfer device for sealed transfer of said amount of the liquid component to the cylinder for subsequent mixing and injection of the completed mixture. The first piston/cylinder arrangement is an injection syringe. A mixing element being manoeuvrable by a user is positioned inside the cylinder. At least one gas transferring channel means leading to the cylinder is arranged at the cylinder. Engagement means are arranged for connecting the first injection syringe to the separate reservoir during transfer of the liquid component.

Abstract: A positioning device for placing a prosthesis device in a spinal column of a living mammal, the device including at least one holding means for cooperation with the prosthesis device and for guiding thereof during positioning. The positioning device may also include fixing means for fixation with respect to at least one vertebra, where the fixing means includes locking means, which in a first, free state, allows adjustable movement of the holding device and thereby of the prosthesis device, and in a second, locked state, fixes the holding means and thereby the prosthesis device in a selected position. Embodiments of the disclosure also include Embodiments of the invention also include a system.

Abstract: A system and a method for making an injectable mixture using at least one first pulverulent component and a second liquid component with a first piston/cylinder arrangement with a cylinder with an axial extension and a piston, wherein the cylinder includes a measured amount of the pulverulent component, a separate reservoir including a corresponding measured amount of the liquid component, and a transfer device for sealed transfer of said amount of the liquid component to the cylinder for subsequent mixing and injection of the completed mixture. The first piston/cylinder arrangement is an injection syringe. A mixing element being manoeuvrable by a user is positioned inside the cylinder. At least one gas transferring channel means leading to the cylinder is arranged at the cylinder. Engagement means are arranged for connecting the first injection syringe to the separate reservoir during transfer of the liquid component.

Abstract: A device in a disc implant (2) for positioning between two vertebrae (3,3?) in a spinal column, said disc implant (2) including two contacting elements (14,14?) for contacting each one vertebra and an intermediate articulation device (15) includes at least one sealing element (13,13?) for attachment to a peripheral part of one of the contacting elements for sealing between that element and an adjacent vertebra. The invention also concerns a disc implant.

Abstract: A positioning device (1) for placing a prosthesis device (2) in a spinal column of a living mammal, including at least one holding device (6) for cooperation with the prosthesis device and for guiding thereof during positioning, wherein it includes fixing means (7) for fixation with respect to at least one vertebra (3,3?), and said fixing means includes locking means (9), which in a first, free state, allows adjustment movement of said holding means (6) and thereby of the prosthesis device (2), and in a second, locked state, fixes said holding device (6) and thereby the prosthesis device (2) in a selected position. The invention also concerns a system.

Abstract: A pacemaker has control circuits contained in an enclosure and a lead containing an electrical conductor connected to an electrode for delivering electrical stimulation pulses to a heart. The stretching of a wall in the ventricle, corresponding to adequate filling of the ventricle in the heart, is determined in order to identify a time of emitting the stimulation pulses. This stretching is measured indirectly by measurement of pressure in the ventricle using a pressure sensor disposed near the lead in the ventricle. The signal from the sensor is supplied via the lead to circuitry in the enclosure, wherein the signal is amplified and is supplied to an edge detector, which detects an increasing or positive edge of the signal.

Abstract: A device for heart therapy has a tacharrythmia detector unit, a control unit and a current generator. The current generator controlled by the control unit emits via an electrode system a first, pulsed current to a physiological representative of the parasympathetic nervous system in order to activate same in response to detection of an impending or established arrhythmia. The current generator is further caused by the control unit, in the event of tachyarrythmia detection to emit, via the electrode system, a second current to a physiological representative of the sympathetic nervous system in order to block same.

Abstract: An implantable cardioverter/defibrillator has an electrode system including two electrodes, at least one of the two electrodes being adapted for placement in a peripheral vein of the heart, the peripheral veins constituting the venous side of the coronary vessels running between the base of the heart and the apex of the heart.

Abstract: An electrode system for a defibrillator avoids the use of a ventricular electrode, and provides efficient utilization of the energy stored in the defibrillator with a beneficial distribution of current in the heart. The electrode system includes three electrodes, at least two of which are intravascular electrodes. One of these intravascular electrodes is placed in the inferior vena cava and the other is placed in the coronary sinus, including its continuation (the great cardiac vein) along the base of the heart. The third electrode can be either an extravascular patch electrode, located in the region of the left ventricle, or an additional intravascular electrode located in the superior vena cava. The intravascular electrodes are devised so that they do not impede the flow of blood in the vein in which they are located.

Abstract: A defibrillation electrode, especially for implantation at an intravascular site in a patient, has a flexible electrode cable containing at least one elongate, electrically insulated conductor with an electrode head disposed at a distal end of the electrode cable, and having at least one defibrillation surface for delivering defibrillation pulses to the patient's heart. The electrode head is constructed so as to be radially expandable and, in an expanded position, defines the contours (surface configuration) of a hollow body so as to provide a defibrillation electrode which is affixable to the vessel in which it is sited, and which has a minimal impact on the flow of blood in that blood vessel.

Abstract: A defibrillation electrode has a flexible electrode cable containing at least one elongated, electrically insulated conductors and having an electrode configuration attached at a distal end of the electrode cable. This electrode device configuration a number of elongated, flexible conductors, pre-shaped into an outward bulging configuration, having first ends anchored adjacent to each other at the distal end of the electrode cable, and second ends anchored adjacent to each other at a common connection point. To attain a defibrillation electrode which can be used for intracardial, epicardial and myocardial stimulation of the heart and which can be rapidly introduced into the patient, and applied to the myocardium or pericardium, with no need for major surgery, the conductors are spatially pre-shaped such that the anchored ends at the common connection point are twisted in relation to the anchored ends at the electrode cable's distal end.

Abstract: An electrode arrangement for in vivo stimulation of tissue with electrical energy has a catheter containing an electrical lead, the lead and the catheter being electrically and mechanically connected to further electrical conductors, arranged in a configuration forming a broad, flat, thin and flexible electrode. The conductors in the electrode are partially exposed and define an electrode surface for delivering electrical energy to adjacent tissue. The electrode arrangement further includes a fixing device, for attaching the electrode to tissue surrounding the tissue to be stimulated. The fixing device includes a fixing element which is mounted on the electrode so as to be movable independently of the electrode, and a stylet which controls movement of the fixing element, the stylet extending through the catheter. The fixing element can be controlled so as to be advanced from a retracted position to a position extending beyond the electrode surface in which the fixing element penetrates the tissue.

Abstract: An electrode for implantation in a patient and for connection through a lead to a heart stimulation/sensing system has an active electrode element of conductive material and the electrode has a shape and size conforming to an interspace between the periost and the bone at the inner side of a rib proximal to the heart of a patient so as to accommodate location of the electrode at the interspace. The electrode has fixing elements to fix the relative position of the electrode with respect to the rib. An implantation method is also disclosed.

Abstract: A blood vessel prosthesis, comprising a tubular element of an inert, completely or partially non-resorbable material having no adverse tissue reaction. To the inside of the tubular element an interior wall construction of a resorbable material with no adverse tissue reaction is fixed, which wall construction has such a structure that passage of blood cells, such as erythrocytes and thrombocytes, into or through the same is permitted.