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

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4649938
SERIAL NO

06728985

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ATTORNEY / AGENT: (SPONSORED)

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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 1142
SIEMENS ELEMA ABSOLNA52

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McArthur, William A 27544 Lovage Ct., Saugus, CA 91350 3 169

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Telectronics, Inc. (2)
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* 4463765 Screw-in pacing lead assembly 75 1982
 
INNOMEDICA, INC. (1)
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MEDTRONIC, INC. (1)
* 4381013 "J" Stylet wire 46 1981
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
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8838238 Ventricular pacing 1 2012
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8287554 Method and devices for tissue reconfiguration 10 2003
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7713277 Tissue reconfiguration 20 2004
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7776057 Methods and devices for tissue reconfiguration 61 2004
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6345204 Single pass lead having retractable, actively attached electrode for pacing and sensing 36 2000
6634364 Method of deploying a ventricular lead containing a hemostasis mechanism 8 2000
6901288 Sealing assembly for intravenous lead 11 2001
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6983185 Lead with terminal connector assembly 19 2002
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6915169 Extendable and retractable lead having a snap-fit terminal connector 45 2002
7657324 Seal for use with cardiac lead 5 2003
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7774934 Method for making a terminal connector 5 2005
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8078287 His bundle mapping, pacing, and injection lead 19 2007
* 2009/0088,827 Lead assembly providing sensing or stimulation of spaced-apart myocardial contact areas 13 2007
8209035 Extendable and retractable lead having a snap-fit terminal connector 0 2008
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8050775 Coronary vein lead having pre-formed biased portions for fixation 1 2009
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8285398 Lead with terminal connector assembly 0 2010
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8565880 His-bundle capture verification and monitoring 5 2011
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8983623 Inductive element for providing MRI compatibility in an implantable medical device lead 4 2013
9050457 MRI conditionally safe lead with low-profile conductor for longitudinal expansion 2 2014
9199077 MRI conditionally safe lead with multi-layer conductor 2 2014
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9504821 Construction of an MRI-safe tachycardia lead 0 2015
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8718794 Method for indicating embedment of a helical anchor in cardiac tissue via fluoroscopy 0 2011
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* Cited By Examiner