7 results about "Pacemaker leads" patented technology

A stabilizer sleeve is disclosed for use with cardiac implantable electronic device leads. The sleeve comprises a tubular body sized to receive the lead and shaped to bias the lead toward a desired anatomical location, thereby reducing migration, dislodgement, and interference with cardiac structures. The sleeve may be introduced with the lead as a unitary assembly or added after lead placement. Various embodiments include a slitted body for expansion, radiopaque markers for visualization, detachable nose-cone tips for guidewire tracking, and antimicrobial coatings. The sleeve may be formed of polymers, alloys, or composite materials, and may include features such as texturing or anchoring projections for tissue engagement. Applications include positioning within a tricuspid valve commissure to minimize regurgitation and stabilizing left ventricular leads within branches of the coronary sinus. The device and methods described provide improved long-term stability and performance of implanted cardiac leads.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

A method of facilitating pacemaker lead removal using a shock wave catheter includes: advancing a catheter over a pacemaker lead, the catheter comprising a nozzle comprising an outlet sized to receive the pacemaker lead, and at least one shock wave emitter positioned proximally of the nozzle outlet; positioning the nozzle outlet adjacent to a treatment site comprising a lesion located at least partially distal to the nozzle outlet; generating one or more shock waves that propagate distally within the nozzle and are concentrated by the nozzle to disrupt the lesion to facilitate removal of the pacemaker lead.

A method of facilitating pacemaker lead removal using a shock wave catheter includes: advancing a catheter over a pacemaker lead, the catheter comprising a nozzle comprising an outlet sized to receive the pacemaker lead, and at least one shock wave emitter positioned proximally of the nozzle outlet; positioning the nozzle outlet adjacent to a treatment site comprising a lesion located at least partially distal to the nozzle outlet; generating one or more shock waves that propagate distally within the nozzle and are concentrated by the nozzle to disrupt the lesion to facilitate removal of the pacemaker lead.

The utility model discloses a switching device for connecting a pacemaker lead and a pacing test line. The switching device comprises a bearing body and a rolling body, the bearing body is provided with an inner ring and an outer ring, the inner ring is used for connecting a connector of a pacemaker wire and a connector of a pacemaker pulse generator, and the outer ring is used for connecting an alligator clip of a pacemaker test line; and the rolling bodies are used for connecting and conducting the inner ring and the outer ring. According to the utility model, the inner ring is connected with the pacemaker wire joint, the outer ring is connected with the alligator clip of the pacemaker test wire, and the inner ring and the outer ring are connected and conducted through the rolling body, so that after the pacemaker wire is screwed in, the inner ring can adaptively rotate along with the pacemaker wire joint, and meanwhile, the alligator clip of the pacemaker test wire is always clamped on the outer ring; and the rolling body is communicated with the inner ring, so that the damage current and potential change in the process of screwing the joint of the pacemaker lead in the whole process can be monitored.

A delivery catheter and method for implanting a pacemaker lead. The delivery catheter includes a catheter body with a lumen, first and second electrodes connected with respective first and second conductor wires connecting the first and second electrodes to an energy source. The method includes inserting a delivery catheter into the patient, the catheter having a distal electrode, breaching cardiac tissue with the electrode, and inserting a pacemaker lead though the delivery catheter and electrode into the patient.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.