Methodfor the implantation of active fixation medical leads
AssigneePacesetter, Inc.
InventorFrank Hieu Truong
Life of this patent
Estimating the term…
Abstract
A lead implantation tool is used for the implantation of active fixation medical leads. The tool may be configured to operably couple to a lead connector end of an implantable cardiac electrotherapy lead including an active fixation helix tip and wherein the lead connector end includes a contact pin proximally extending from the lead connector end. The tool may include a feature configured to couple to the contact pin and a first mechanism configured to convert linear movement into rotational movement of the contact pin relative to the lead connector end. The tool may further include a second mechanism that causes a stylet extending through the tool and into the contact pin to at least one of distally and proximally displace within the contact pin.
Claims10
A method of implanting a cardiac electrotherapy lead having an active fixation helix tip and a lead connector end having a contact pin mechanically coupled to the helix tip, wherein rotation of the contact pin causes rotation of the helix tip, the method comprising:
- providing the lead, a delivery tool, and a stylet;
- coupling the lead connector end to the tool, wherein the contact pin is operably coupled to a rotation mechanism of the tool;
- linearly displacing a first member of the tool along a handle of the tool, the linear displacement causing the rotation mechanism to rotate the contact pin relative to the lead connector end;
- and
- linearly displacing a second member of the tool along the handle, the linear displacement causing the stylet routed through the contact pin to displace at least one of distally and proximally within the lead.
A method of implanting a cardiac electrotherapy lead having an active fixation helix tip and a lead connector end having a contact pin mechanically coupled to the helix tip, wherein rotation of the contact pin causes rotation of the helix tip, the method comprising:
- providing the lead and a delivery tool;
- linearly displacing a first digit engagable member of the tool along a handle of the tool, wherein linear displacement of the first digit engagable member results in rotational displacement of a worm gear of the tool, and wherein the worm gear is operably coupled to the handle and the first digit engagable member;
- rotating an axle of the tool, wherein rotation of the worm gear results in rotation of the axle, wherein the axle is operably coupled to the worm gear and is configured to operably couple with the contact pin, and wherein the axle has a first toothed gear and the worm gear has a second toothed gear in toothed engagement with the first toothed gear;
- and
- engaging a feature of the tool to the lead connector end, wherein rotation of the axle causes the contact pin to rotate relative to the lead connector end.
A method of implanting a cardiac electrotherapy lead having an active fixation helix tip and a lead connector end having a contact pin mechanically coupled to the helix tip, wherein rotation of the contact pin causes rotation of the helix tip, the method comprising:
- providing the lead and a delivery tool;
- linearly displacing a first digit engagable member of the tool along a handle of the tool, wherein linear displacement of the first digit engagable member results in rotational displacement of a worm gear of the tool, and wherein the worm gear is operably coupled to the handle and first digit engagable member;
- rotating an axle of the tool, wherein rotation of the worm gear results in rotation of the axle, and wherein the axle is operably coupled to the worm gear and is configured to operably couple with the contact pin;
- and
- engaging a feature of the tool to the lead connector end, wherein rotation of the axle causes the contact pin to rotate relative to the lead connector end;
- wherein the axis of the axle and the axis of the worm gear are parallel and offset from each other.
A method of implanting a cardiac electrotherapy lead having an active fixation helix tip and a lead connector end having a contact pin mechanically coupled to the helix tip, wherein rotation of the contact pin causes rotation of the helix tip, the method comprising:
- providing the lead, a delivery tool, and a stylet;
- linearly displacing a first digit engagable member of the tool along a handle of the tool, wherein linear displacement of the first digit engagable member results in rotational displacement of a worm gear of the tool, and wherein the worm gear is operably coupled to the handle and first digit engagable member;
- rotating an axle of the tool, wherein rotation of the worm gear results in rotation of the axle, and wherein the axle is operably coupled to the worm gear and is configured to operably couple with the contact pin;
- engaging a first feature of the tool to the lead connector end, wherein rotation of the axle causes the contact pin to rotate relative to the lead connector end;
- and
- linearly displacing a second digit engagable member of the tool along the handle, wherein the second digit engagable member is operably coupled to a second feature configured to engage the stylet extending through the handle and into the contact pin.
A method of implanting a cardiac electrotherapy lead having an active fixation helix tip and a lead connector end having a contact pin mechanically coupled to the helix tip, wherein rotation of the contact pin causes rotation of the helix tip, the method comprising:
- providing the lead, a delivery tool, and a stylet;
- displacing a first member of the tool relative to a handle of the tool;
- wherein a rotation mechanism has a contact pin engagement feature rotatable relative to the handle and operably coupled to the first member, and wherein displacement of the first member causes the contact pin engagement feature to rotate;
- and
- displacing a second member of the tool relative to the handle, wherein displacement of the second member causes the stylet to at least one of distally and proximally displace through the contact pin.
Dependencies are inferred from the claim text.