US Patent No: 4,649,938

Number of patents in Portfolio can not be more than 2000

Tissue-stimulating electrode having sealed, low-friction extendable/retractable active fixation means

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Importance

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Abstract

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An electrode tip (14) of a tissue-stimulating lead provides active fixation of the tip of body tissue. Tissue attachment means (34), within the electrode tip, are selectively extended so as to protrude from the tip upon application of an external force. Otherwise, biasing means (40), also within the electrode tip, urge the tissue attachment means to a retracted position within the tip. Extension and retraction of the tissue attachment means are realized through the use of a carrier bobbin (44), to one end of which the tissue attachment means are affixed. The carrier bobbin is movably inserted into a barrel (30) of the tip. An O-ring (38) placed around the circumference of the carrier bobbin, sized so as to make sealable contact with the inside barrel wall, seals the back end of the barrel and prevents fluids from flowing therein. This O-ring also rolls along the surface of the carrier bobbin and barrel wall as the bobbin moves within the barrel, thereby reducing friction associated with the movement of the bobbin. The carrier bobbin moves to its extended position upon application of an axial force. This axial force is selectively supplied by a stylet (20) that passes through a lume (56) of the lead.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PACESETTER ABS171 95 SOLNA 1301
SIEMENS ELEMA ABSOLNA140

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McArthur, William A 27544 Lovage Ct., Saugus, CA 91350 3 125

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TELECTRONICS, INC., A DE CORP. (2)
4,475,560 Temporary pacing lead assembly 39 1982
4,463,765 Screw-in pacing lead assembly 65 1982
 
Biotronik Mess-und Therapiegeraete GmbH & Co. (1)
4,280,512 Cardiac pacemaker electrode for transvenous application 20 1979
 
INNOMEDICA, INC. (1)
4,570,642 Endocardial extendable screw-in lead 72 1983
 
MEDAPHORE, INC. (1)
4,217,913 Body-implantable lead with protected, extendable tissue securing means 107 1979
 
MEDTRONIC, INC. (1)
4,381,013 "J" Stylet wire 31 1981

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Cardiac Pacemakers, Inc. (49)
5,425,756 Positive fixation device 41 1993
5,514,174 Positive fixation device 40 1995
5,916,243 Implantable conformal coil patch electrode with multiple conductive elements for cardioversion and defibrillation 111 1996
5,913,887 Device for the transvenous cardioversion of atrial fibrillation or atrial flutter including three coil electrodes 30 1997
6,097,986 Retractable lead with mesh screen 16 1997
6,256,541 Endocardial lead having defibrillation and sensing electrodes with septal anchoring 129 1998
6,501,994 High impedance electrode tip 36 1998
6,321,122 Single pass defibrillation/pacing lead with passively attached electrode for pacing and sensing 12 1998
6,212,434 Single pass lead system 92 1998
6,152,954 Single pass lead having retractable, actively attached electrode for pacing and sensing 12 1998
6,085,119 Single pass endocardial lead for multi-site atrial pacing 24 1998
6,240,321 Expandable seal for use with medical device and system 41 1998
6,026,332 Implantable conformal coil patch electrode with multiple conductive elements for cardioversion and defibrillation 2 1999
6,152,955 Implantable conformal coil patch electrode with multiple conductive elements for cardioversion and defibrillation 41 1999
6,032,079 Implantable conformal coil electrode with multiple conductive elements for cardioversion and defibrillation 2 1999
6,038,483 Implantable conformal coil patch electrode with multiple conductive elements for cardioversion and defibrillation 37 1999
6,041,256 Device for the transvenous cardioversion of atrial fibrillation or atrial flutter 10 1999
6,463,334 Extendable and retractable lead 36 1999
6,438,416 Device for the transvenous cardioversion of atrial fibrillation or atrial flutter including three coil electrodes 0 2000
6,505,082 Single pass lead system 46 2000
6,345,204 Single pass lead having retractable, actively attached electrode for pacing and sensing 26 2000
6,634,364 Method of deploying a ventricular lead containing a hemostasis mechanism 8 2000
6,901,288 Sealing assembly for intravenous lead 9 2001
6,741,894 Device for the transvenous cardioversion of atrial fibrillation or atrial flutter 0 2001
6,983,185 Lead with terminal connector assembly 15 2002
6,915,169 Extendable and retractable lead having a snap-fit terminal connector 33 2002
7,657,324 Seal for use with cardiac lead 2 2003
7,245,973 His bundle mapping, pacing, and injection lead 28 2003
7,366,574 Device for the transvenous cardioversion of atrial fibrillation or atrial flutter 0 2004
7,412,290 Seal for use with medical device and system 3 2004
7,392,095 Extendable and retractable lead having a snap-fit terminal connector 18 2005
7,774,934 Method for making a terminal connector 3 2005
8,346,358 Pacemaker which reestablishes or keeps the physiological electric conduction of the heart and a method of application 3 2005
8,055,356 Lead system having friction mechanism and method therefor 0 2006
8,078,287 His bundle mapping, pacing, and injection lead 9 2007
8,209,035 Extendable and retractable lead having a snap-fit terminal connector 0 2008
8,423,139 Methods, devices and systems for cardiac rhythm management using an electrode arrangement 4 2008
8,326,423 Devices and methods for steering electrical stimulation in cardiac rhythm management 4 2008
8,437,848 Apparatus for treating the physiological electric conduction of the heart 1 2008
8,428,715 Methods for treating the physiological electric conduction of the heart 4 2008
8,290,586 Methods, devices and systems for single-chamber pacing using a dual-chamber pacing device 4 2008
8,285,376 Ventricular pacing 4 2009
8,050,775 Coronary vein lead having pre-formed biased portions for fixation 1 2009
8,688,234 Devices, methods, and systems including cardiac pacing 0 2009
8,285,398 Lead with terminal connector assembly 0 2010
8,565,880 His-bundle capture verification and monitoring 1 2011
8,543,203 Endocardial pacing devices and methods useful for resynchronization and defibrillation 1 2011
8,538,521 Systems, devices and methods for monitoring efficiency of pacing 1 2011
8,498,721 Coronary vein leads having pre-formed biased portions for fixation 0 2011
 
ETHICON ENDO-SURGERY, INC. (9)
8,287,554 Method and devices for tissue reconfiguration 4 2003
7,846,180 Tissue fixation devices and methods of fixing tissue 8 2003
7,896,893 Methods and devices for tissue reconfiguration 1 2004
7,857,823 Tissue reconfiguration 1 2004
7,722,633 Tissue reconfiguration 1 2004
7,713,277 Tissue reconfiguration 3 2004
7,776,057 Methods and devices for tissue reconfiguration 10 2004
8,057,494 Methods and devices for tissue reconfiguration 2 2009
8,277,468 Tissue reconfiguration 0 2010
 
PACESETTER, INC. (9)
5,228,455 Implant tool for extendable/retractable positive fixation lead 26 1991
5,324,325 Myocardial steroid releasing lead 108 1993
5,447,533 Implantable stimulation lead having an advanceable therapeutic drug delivery system 120 1993
5,531,780 Implantable stimulation lead having an advanceable therapeutic drug delivery system 129 1994
5,658,327 Intracardiac lead having a compliant fixation device 41 1995
7,092,766 Active fixation lead with multiple density 33 2003
7,991,484 Active fixation medical lead and related method and system 1 2007
8,108,054 Active fixation implantable medical lead configured to indicate via fluoroscopy embedment of helical anchor in cardiac tissue 1 2009
8,718,794 Method for indicating embedment of a helical anchor in cardiac tissue via fluoroscopy 0 2011
 
INTERMEDICS, INC. (6)
4,858,623 Active fixation mechanism for lead assembly of an implantable cardiac stimulator 81 1987
4,919,135 Triaxial electrode 27 1988
4,924,881 Implantable endocardial lead with fixation device retractable by threaded stylet 54 1989
4,967,766 Implantable endocardial lead with fixation apparatus retractable by a lanyard 53 1989
5,152,299 Implantable endocardial lead with spring-loaded screw-in fixation apparatus 55 1991
5,593,433 Implantable endocardial lead with self-healing retractable fixation apparatus 39 1994
 
MEDTRONIC, INC. (3)
5,003,992 Atraumatic screw-in lead 70 1989
5,575,814 Active fixation medical electrical lead having mapping capability 36 1995
5,837,006 Retraction stop for helical medical lead electrode 44 1996
 
EP Technologies, Inc. (2)
5,293,869 Cardiac probe with dynamic support for maintaining constant surface contact during heart systole and diastole 429 1992
5,871,443 Cardiac mapping and ablation systems 84 1996
 
COROMETRICS MEDICAL SYSTEMS, INC. (1)
5,012,811 Fetal electrode product with protective cap 22 1988
 
GREATBATCH LTD. (1)
5,179,962 Cardiac lead with retractible fixators 91 1991
 
NDO Surical, Inc. (1)
7,736,373 Methods and devices for tissue reconfiguration 3 2004
 
ST. JUDE MEDICAL AB (1)
8,442,652 Medical implantable lead and method for connecting a medical implantable lead to an organ 0 2008
 
ST. JUDE MEDICAL, INC. (1)
8,521,305 Percutaneous lead with distal fixation 0 2011
 
Symbiosis Corporation (1)
5,395,364 Endoscopic instrument incorporating an elastomeric fluid seal 11 1993
 
Other [Check patent profile for assignment information] (2)
5,330,521 Low resistance implantable electrical leads 200 1992
8,160,723 Bipolar electrode that can be implanted 0 2009

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