Lead locking device and method

• US 20040236397A1
• Filed: 06/25/2004
• Published: 11/25/2004
• Est. Priority Date: 04/05/1999
• Status: Active Grant

• Current Assignee: Spectranetics Corporation (Koninklijke Philips N.V.)
• Original Assignee: Spectranetics Corporation (Koninklijke Philips N.V.)
• Inventors: Diaz, Cesar, Plasket, Thomas E., Coe, Michael Sean, Harlan, Kenneth D.
• Granted Patent: US 8,428,747 B2
• Time in Patent Office: Days
• US Class Current: 607/116
• CPC Class Codes: A61B 2017/22034 for gripping the obstruction or the tissue part from inside
• CPC Class Codes: A61N 1/056 Transvascular endocardial electrode systems
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 2001/0578 having means for removal or extraction
• CPC Class Codes: A61N 2001/058 Fixing tools

Abstract

A lead locking device has a lead insertion member having a proximal end and a distal end and has a lead engaging assembly. The lead insertion member defines a lumen extending along a longitudinal axis between the distal end and the proximal end of the lead engaging assembly. A mandrel disposed in the lumen of the lead engaging assembly extends along substantially the entire length of the lumen and protrudes beyond the most proximal end of the lead insertion member. The mandrel includes a distal portion in slidable contact with at least a portion of the lead engaging assembly. The lead engaging assembly has a first configuration while being inserted into a lumen of a lead and a second configuration while engaging the lead from within the lumen of the lead. The lead engaging member has at least two expansion jaws that, in the first configuration, define a substantially cylindrical body. The expansion jaws translate radially outwardly from the longitudinal axis to engage the lumen of the lead when in the second configuration.

Claims

1-70. -70. (cancelled)

71. A method of removing a lead implanted in a patient'"'"'s body, comprising:

attaching a lead locking device to said lead along at least about 30% of an entire longitudinal length of said lead; and

applying a traction force to said lead locking device.

72. A method of removing a lead implanted in a patient'"'"'s body according to claim 71, further comprising inserting a lead engaging portion of said lead locking device into a lumen defined by said lead.

73. A method of removing a lead implanted in a patient'"'"'s body according to claim 72, wherein said attaching said lead locking device to said lead comprises attaching said lead engaging member along at least about 30% of said lumen defined by said lead.

74. A method of removing a lead implanted in a patient'"'"'s body according to claim 73, wherein said at least about 30% of said lumen defined by said lead includes at least a proximal portion and a distal portion of said lumen defined by said lead.

75. A method of removing a lead implanted in a patient'"'"'s body according to claim 73, wherein said at least about 30% of said lumen defined by said lead includes substantially said entire longitudinal length of said lead.

76. A method of removing a lead implanted in a patient'"'"'s body according to claim 72, further comprising sliding a catheter over said lead wherein said lead extends along a lumen defined by said catheter.

77. A method of removing a lead implanted in a patient'"'"'s body according to claim 76, wherein said catheter is a laser catheter

78. A method of removing a lead implanted in a patient'"'"'s body according to claim 73, further comprising detaching said lead engaging member from said lead.

79. A method of removing a lead implanted in a patient'"'"'s body according to claim 78, further comprising re-attaching said lead locking device to said lead.