摘要:
A lead connector is terminated proximally by a connector pin and includes a circumferential array of connector pads, each connector pad coupled to an electrode via an elongated insulated conductor. A lumen of an adaptor is adapted to engage the lead connector and includes an electrical contact zone formed therein and positioned for coupling with a one of the array of connector pads, when the connector is engaged within the lumen, in order to facilitate electrical connection of a selected electrode corresponding to the one of the array of connector pads.
摘要:
A medical electrical lead, which may be useful in coupling an implantable medical device, is comprised of a first and second lead. The first lead has a first electrode coupled adjacent a distal end portion thereof. The distal end portion of the first lead is anchorable in the coronary sinus of a patient. The second lead is coupled with and moveable along the first lead. The second lead has a second electrode located thereon wherein the position of the first and second electrodes may be varied relative to one another by movement of the second lead along the first lead. A rubber tip holds the relative position of each electrode.
摘要:
A system for delivering a medical electrical lead within a coronary venous system that includes an introducer kit for establishing venous access to the coronary venous system and a plurality of delivery sheaths, each corresponding to a desired approach to a coronary sinus of the coronary venous system and insertable within the coronary venous system through the navigation pathway. A hemostasis valve is coupled to a delivery sheath of the plurality of delivery sheaths, and a guide wire is inserted within the lead lumen, guiding delivery of the distal tip of the medical electrical lead to a target site within the coronary venous system through the hemostasis valve and the delivery sheath. Subsequent to the distal tip being delivered to the target sight, the hemostasis valve is advanced over the connector of the medical electrical lead to remove the hemostasis valve from the medical electrical lead.
摘要:
A connector sleeve includes a lumen adapted to receive a medical lead connector wherein a retention element engages a retention edge formed at a distal end of a connector element included on the lead connector. The connector sleeve further includes a contact element adapted to electrically engage the lead connector element within the lumen and an external conductive surface electrically coupled to the contact element and adapted for electrical engagement within the connector bore of an implantable medical device.
摘要:
A lead connector including a connector element array is fitted into a selected adaptor from a plurality of adaptors to electrically couple one or more elements of the connector element array, corresponding to one or more selected electrodes from an array of lead electrodes, to one or more contact zones of the selected adaptor in order to facilitate electrical connection with an implantable medical device.
摘要:
A medical electrical lead, which may be useful in coupling an implantable medical device, is comprised of a first and second lead. The first lead has a first electrode coupled adjacent a distal end portion thereof. The distal end portion of the first lead is anchorable in the coronary sinus of a patient. The second lead is coupled with and moveable along the first lead. The second lead has a second electrode located thereon wherein the position of the first and second electrodes may be varied relative to one another by movement of the second lead along the first lead. A rubber tip holds the relative position of each electrode.
摘要:
An electrical lead includes an elongate body having a proximal end and a fixation member joined to the elongate body and distally disposed from the proximal end of the elongate body, wherein the fixation member is capable of being extended from and retracted toward the elongate body. A method includes advancing an electrical lead into vasculature and extending a fixation member from the body of the electrical lead to fixedly engage the electrical lead within the vasculature. The method may further include retracting the fixation member toward the body of the electrical lead to unengage the electrical lead within the vasculature and retracting the electrical lead from the vasculature.
摘要:
A loading device for loading a guide wire within a medical electrical lead that includes a navigation portion, having an outer portion, and extending from a front end to a back end, and having an opening formed at the back end. An engagement cavity receives and properly orientates the lead distal tip to align the lumen of the lead with the opening of the navigation portion during the loading of the guide wire within the lead. A first side wall is spaced from a second side wall to form a slot extending along the outer portion from the front end to the back end of the navigation portion, and the guide wire is advanced through the slot as the lead having the guide wire loaded therein is removed from the loading device.
摘要:
A lead connector is terminated proximally by a connector pin and includes a circumferential array of connector pads, each connector pad coupled to an electrode via an elongated insulated conductor. A lumen of an adaptor is adapted to engage the lead connector and includes an electrical contact zone formed therein and positioned for coupling with a one of the array of connector pads, when the connector is engaged within the lumen, in order to facilitate electrical connection of a selected electrode corresponding to the one of the array of connector pads.
摘要:
An improved medical lead assembly and method of use is provided. The lead assembly includes a lead body, and a spring member positioned adjacent to the lead body. The spring member may be deployed a selectable amount to maintain the lead body in a fixed location within a patient's body. The spring member may be an expandable coil, a mesh structure that is similar to a stent, or any other similar device that may be positioned in a low-profile state during a lead implant procedure. After the lead is positioned at a target destination, the spring member may be deployed an amount that is selected based on the characteristics of the surrounding tissue, including vessel size. According to one aspect of the invention, the lead assembly may provide means for facilitating chronic lead extraction.