Method of implanting a subcutaneous defibrillator
First Claim
1. A method of implanting an implantable defibrillator in a patient, the implantable defibrillator comprising a canister and a lead, the method comprising:
- making an incision in the left anterior axillary line;
creating a subcutaneous pathway for implantation of the canister medially of the incision and creating a canister location at approximately the left inframammary crease;
creating a subcutaneous pathway for implantation of the lead posteriorly from the incision toward the left posterior axillary line using a curved trocar;
developing the subcutaneous pathway for implantation of the lead such that it terminates at a point that, if a straight line were drawn from the canister location to the termination point, the line would intersect a substantial portion of the left ventricular mass of the patient;
inserting the lead into the subcutaneous pathway for implantation of the lead; and
placing the canister medially of the incision at the canister location.
1 Assignment
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Accused Products
Abstract
A subcutaneous implantable cardioverter-defibrillator is disclosed which has an electrically active canister which houses a source of electrical energy, a capacitor, and operational circuitry that senses the presence of potentially fatal heart rhythms. At least one subcutaneous electrode that serves as the opposite electrode from the canister is attached to the canister via a lead system. Cardioversion-defibrillation energy is delivered when the operational circuitry senses a potentially fatal heart rhythm. There are no transvenous, intracardic, or epicardial electrodes. A method of subcutaneously implanting the cardioverter-defibrillator is also disclosed as well as a kit for conducting the method.
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Citations
20 Claims
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1. A method of implanting an implantable defibrillator in a patient, the implantable defibrillator comprising a canister and a lead, the method comprising:
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making an incision in the left anterior axillary line; creating a subcutaneous pathway for implantation of the canister medially of the incision and creating a canister location at approximately the left inframammary crease; creating a subcutaneous pathway for implantation of the lead posteriorly from the incision toward the left posterior axillary line using a curved trocar; developing the subcutaneous pathway for implantation of the lead such that it terminates at a point that, if a straight line were drawn from the canister location to the termination point, the line would intersect a substantial portion of the left ventricular mass of the patient; inserting the lead into the subcutaneous pathway for implantation of the lead; and placing the canister medially of the incision at the canister location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of implanting an implantable defibrillator, the implantable defibrillator comprising a canister and a lead, the method comprising:
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making an anterior incision on a patient'"'"'s ribcage; creating a space adjacent the anterior incision near the left inframammary crease of the patient for implantation of the canister; creating a subcutaneous pathway from the incision posteriorly to the left posterior axillary line for implantation of the lead using at least a trocar and a peel away sheath; leaving the peel away sheath in the subcutaneous pathway for implantation of the lead; implanting the lead through the peel away sheath; removing the peel away sheath; and implanting the canister in the space for implantation of the canister; wherein the lead has a proximal end adapted for coupling to the canister and a distal end, and the lead comprises a means for anchoring the distal end of the lead to maintain a posterior position of the lead. - View Dependent Claims (20)
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Specification