Abstract: A medical implantable lead has a header in a distal end, a fixation arrangement and an electrode arranged in the header. The lead also has a connector in a proximal end that includes a connector pin and is adapted to be connected to a monitoring and/or controlling device, and an inner coil, which extends inside an outer casing of the lead and is adapted to transmit electrical signals between the monitoring and/or controlling device and the electrode. The inner coil is attached to the connector pin. The inner coil extends through a bore inside the connector pin and is attached to the connector pin in its proximal end. A method for manufacturing such a lead is also provided.

Abstract: A medical implantable lead has a header in a distal end, a fixation arrangement and an electrode arranged in the header. The lead also has a connector in a proximal end that includes a connector pin and is adapted to be connected to a monitoring and/or controlling device, and an inner coil, which extends inside an outer casing of the lead and is adapted to transmit electrical signals between the monitoring and/or controlling device and the electrode. The inner coil is attached to the connector pin. The inner coil extends through a bore inside the connector pin and is attached to the connector pin in its proximal end. A method for manufacturing such a lead is also provided.

Abstract: A medical implantable lead to be inserted into a human or animal body and attached to an organ inside the body for monitoring and/or controlling the function of the organ has a header in a distal end, a fixation arrangement and an electrode arranged in the header. The fixation arrangement attaches the distal end of the lead to the organ and the electrode is arranged to transmit or receive electrical signals to or from the organ. The lead also has a connector in a proximal end that includes a connector pin and is adapted to be connected to a monitoring and/or controlling device, and an inner coil, which extends inside an outer casing of the lead and is adapted to transmit electrical signals between the monitoring and/or controlling device and the electrode. The inner coil is attached to the connector pin. The inner coil extends through a bore inside the connector pin and is attached to the connector pin in its proximal end. A method for manufacturing such a lead is also provided.

Abstract: An implantable lead has a distal lead portion with at least one electrode electrically connected to a connector ring through a conductor running in a lumen of the lead. A proximal lead portion includes the connector ring, a connector pin and a connector coupling mechanically and coaxially connected to each other with the connector coupling as a bridging element. A rotational lock in the form of a circumferential element of an elastically deformable, flexible material is provided in the connector coupling in the interface between the coupling and the connector ring. This rotational lock prevents any rotation of the connector pin to be propagated into a rotation of the connector coupling and consequently reduces the risk of damages to internal lead components due to any such unintentional coupling rotation.

Abstract: A helical fixation element of an implantable medical lead. The fixation element has at least one blood drainage channel running along at least a tissue-penetrating portion of the helix windings of the fixation element. The channel guides, during penetration and anchoring of the fixation element and the lead in a tissue, blood leaking from the tissue away from the vicinity of the fixation element, thereby reducing the size of a fibrin clot formed around the fixation element. The capture threshold for stimulating the tissue is therefore reduced.

Abstract: An implantable lead has a distal lead portion with at least one electrode electrically connected to a connector ring through a conductor running in a lumen of the lead. A proximal lead portion includes the connector ring, a connector pin and a connector coupling mechanically and coaxially connected to each other with the connector coupling as a bridging element. A rotational lock in the form of a circumferential element of an elastically deformable, flexible material is provided in the connector coupling in the interface between the coupling and the connector ring. This rotational lock prevents any rotation of the connector pin to be propagated into a rotation of the connector coupling and consequently reduces the risk of damages to internal lead components due to any such unintentional coupling rotation.

Abstract: A strain reliever for a lead of an implantable heart stimulator, the lead including at least one cable having an electric conductor, has a body of electrically conducting material in electric contact with the electric conductor. The body is lockable in a position in electric contact with electric circuitry of the heart stimulator. The body has a fastening arrangement for fastening the proximal end of the cable at the fastening point on the peripheral surface of the body located at a distance from the distal end of the body. A fixing arrangement is provided at the distal end of the body for fixing the cable to extend in the distal direction from a departure point at the body distal end. The cable is intended to extend in a helical path on the peripheral surface of the body between the fastening point and the departure point.

Abstract: A medical implantable lead to be inserted into a human or animal body and attached to an organ inside the body for monitoring and/or controlling the function of the organ has a header in a distal end, a fixation arrangement and an electrode arranged in the header. The fixation arrangement attaches the distal end of the lead to the organ and the electrode is arranged to transmit or receive electrical signals to or from the organ. The lead also has a connector in a proximal end that includes a connector pin and is adapted to be connected to a monitoring and/or controlling device, and an inner coil, which extends inside an outer casing of the lead and is adapted to transmit electrical signals between the monitoring and/or controlling device and the electrode. The inner coil is attached to the connector pin. The inner coil extends through a bore inside the connector pin and is attached to the connector pin in its proximal end. A method for manufacturing of such a lead is also provided.

Abstract: An implantable lead includes a lead body, a header body, a fixation mechanism, a rotatable shaft and a rotation limit element. The fixation mechanism is disposed in the header body and is extendable out of the header body for securing the header body to cardiac tissue of the patient. The shaft is provided in the header body and is coupled to the fixation mechanism for translating rotational movement of the shaft into linear displacement of the fixation mechanism. The rotation limit element is disposed in the header body. The rotation limit element engages the header body once the shaft is linearly displaced by a predetermined distance with respect to the header body to prevent further rotation of the shaft and limit additional displacement of the fixation mechanism with respect to the header body.

Abstract: A connecting device for connection of a medical implantable lead to tissue inside a body has a helix adapted to be screwed out from a header sleeve at a distal end of the lead and into the tissue, and a shaft which carries the helix and is rotatably journalled in the lead and at the same time is displaceable to extend the helix into the tissue. The helix and the shaft are integrated and manufactured in one unitary piece. A method for manufacturing of such a connecting device includes the step of manufacturing the helix and shaft in one unitary piece.

Abstract: A strain reliever for a lead of an implantable heart stimulator, the lead including at least one cable having an electric conductor, has a body of electrically conducting material in electric contact with the electric conductor. The body is lockable in a position in electric contact with electric circuitry of the heart stimulator. The body has a fastening arrangement for fastening the proximal end of the cable at the fastening point on the peripheral surface of the body located at a distance from the distal end of the body. A fixing arrangement is provided at the distal end of the body for fixing the cable to extend in the distal direction from a departure point at the body distal end. The cable is intended to extend in a helical path on the peripheral surface of the body between the fastening point and the departure point.

Abstract: A stylet unit has a flexible tubular stylet sleeve, a flexible inner stylet wire inserted into a channel of the stylet sleeve with at a least a portion of the stylet wire and at least a portion of the channel each having a non-circular cross section for preventing rotation of the wire inside the sleeve. The stylet unit has a handle with which the sleeve and the stylet wire are movable relative to each other in a longitudinal direction. The sleeve and the wire are connected at one end thereof to the handle, with the sleeve being rotationally arranged within the handle.

Abstract: A sealing plug having a self-sealing access slit is provided in a medical implant. An insert is inserted into the self-sealing access slit to preserve the slit during storage.

Abstract: A stylet unit has a flexible tubular stylet sleeve, a flexible inner stylet wire inserted into a channel of the stylet sleeve with at a least a portion of the stylet wire and at least a portion of the channel each having a non-circular cross section for preventing rotation of the wire inside the sleeve. The stylet unit has a handle with which the sleeve and the stylet wire are movable relative to each other in a longitudinal direction. The sleeve and the wire are connected at one end thereof to the handle, with the sleeve being rotationally arranged within the handle.

Abstract: In a method for sealing an access channel provided for permitting a tool to access a setscrew for securing an electronic lead connector pin to a connector block in the header of a pacemaker or the like, a sealing device having a flexible body with at least one open through hole is formed in a one-step operation. The sealing device has a cross dimension that at least in one direction is larger than a corresponding cross dimension of the access channel. The sealing device is mounted in the header by compressing and positioning the sealing device in the access channel. The difference in cross dimension between the access channel and the sealing device is such that a maintained deformation of the sealing device occurs, which produces a sealing closure of the through hole(s) when the sealing device is mounted in the access channel.

Abstract: A device for manipulating a stylet unit for positioning a electrode cable in a body cavity has a handle supporting, at a distal portion thereof, a rotatable bracket member. A slide member carrying a screw for fixation of a proximal contact element of the electrode cable is displaceably mounted on the bracket member so as to be adjustable to variations in length of a central lumen of the electrode cable, into which the stylet unit is to be inserted.

Abstract: An implantable heart stimulator has a connector for an electrode lead in the form of a self-contained tubular connector, which can be placed as a unit in one-half shell of a stimulator housing, together with a hybrid circuit and a power source. The other half shell of the stimulator housing can then simply be placed over these assembled components and joined thereto by welding, thereby considerably simplifying manufacture and assembly of the stimulator. When an even number of such self-contained connector tubes is employed, the two stimulator housing half shells can be identical.

Abstract: A helical winding formed by a wound ribbon and having a length considerably exceeding its diameter, is adapted for implantation into a patient's body. Adjacent turns of the winding partially overlap each other and overlapping portions of the ribbon engage each other to limit the relative axial motion of adjacent turns. At least a portion of the overlapping structure is oriented non-parallel to the longitudinal axis of the winding. In a method of manufacturing such a winding a ribbon is formed to a desired cross-sectional shape with a longitudinally expanding engagement structure. The ribbon is then wound on a mandrel to produce a winding of desired length, with adjacent turns partially overlapping each other and the engagement structure causing overlapping portions of the ribbon to be mechanically engaged so as to limit the relative axial motion of adjacent turns of the winding. Finally the mandrel is removed out of the wound winding.

Abstract: An electrical connector jack has at least one disk-shaped element made of an elastic, conductive material which has one or more contact surfaces arranged to come into contact with the corresponding contact surfaces on a contact pin. A layer of insulating, elastic material is provided on both sides of the electrically conductive material. The disk-shaped element is elastically deformed by the contact pin when the pin is inserted into the connector jack, so the contact surfaces of the electrically conductive material and the insulating material are pressed against the corresponding contact surfaces on the contact pin, the contact surfaces being protectively sealed by the contact surfaces of the insulating material.

Abstract: An appliance for fastening one or more electrode leads in a connector unit of an implantable medical device, for example a heart stimulator, is formed of a wire- or strip-shaped resilient locking member, which is arranged to be inserted and fixed in a cavity in a connector unit, and which is shaped to clampingly engage diametrically opposed circumferential parts of the casing of each electrode lead.