Defibrillator system with cardiac leads and method for transvenous implantation
First Claim
1. A method for the transvenous implantation of a device through a vein in a patient having a lumen into a pericardial space surrounding a cardium having an atrium and an atrial lateral wall comprising:
- entering the vein with a catheter;
translating the catheter through the vein lumen to the atrium;
puncturing the atrial lateral wall with a puncturing means thereby forming a hole therein;
exiting the atrium through the hole to the pericardial space with a guide wire; and
inserting the device into the pericardial space through the catheter.
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Accused Products
Abstract
The invention relates to a defibrillator system having means for transferring electrical energy coupled to tranvenously implantable cardiac leads and methods for transvenous implantation. The cardiac lead has an elongated first member having a tip on one end thereof, an implantable object coupled to the first member, such as a defibrillator electrode, expandable from a collapsed position to an extended position generally away from the lead and means for expanding the object from the collapsed position to the extended position. The transvenous implantation method of the present invention involves entering a vein of a patient, translating through the vein to the patient'"'"'s cardium atrium, puncturing the atrial lateral wall and forming a hole therein, exiting the atrium through the hole to the pericardial space and inserting the object into the pericardial space.
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Citations
21 Claims
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1. A method for the transvenous implantation of a device through a vein in a patient having a lumen into a pericardial space surrounding a cardium having an atrium and an atrial lateral wall comprising:
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entering the vein with a catheter; translating the catheter through the vein lumen to the atrium; puncturing the atrial lateral wall with a puncturing means thereby forming a hole therein; exiting the atrium through the hole to the pericardial space with a guide wire; and inserting the device into the pericardial space through the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for the transvenous implantation of a cardiac defibrillator lead through a vein in a patient having a lumen into a pericardial space surrounding a cardium having an atrium with an atrial lateral wall comprising:
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entering the vein with a catheter; translating the catheter through the vein lumen to the atrium; abutting the catheter against the atrial lateral wall; passing a needle through the catheter, puncturing the atrial lateral wall with the needle thereby forming a hole in the wall; routing a J-tip guide wire through the needle and exiting the atrium through the hole into the pericardial space and positioning the guide wire into the pericardial space; withdrawing the catheter and needle from the patient; dilating the hole in the wall with a dilator and exiting the atrium space through the hole into the pericardial space with a sheath catheter; withdrawing the dilator from the patient; advancing along the guide wire through the sheath a cardiac defibrillator lead having an elongated hollow first member having a tip on one end thereof, the first member being coupled to an expandable conductive defibrillator electrode sheet and a middle member nested over the first member proximal the tip; advancing along the guide wire an outer member nestable over the first member, having an outer member atrial seal, the seal having a skirt radially projecting therefrom; removing the sheath catheter from the patient; abutting the outer member seal against the atrial wall over the hole formed therein; retracting the guide wire from the patient; retracting the middle member while advancing the outer member and abutting the middle member against the atrial wall over the hole formed therein, thereby sealing the hole between the middle member and the outer member atrial seals; injecting fluid into the pericardial space after the positioning, so as to expand the pericardial space; and expanding the defibrillator electrode sheet into the pericardial space.
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Specification