US Patent No: 5,807,309

Number of patents in Portfolio can not be more than 2000

Transurethral needle ablation device and method for the treatment of the prostate

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A transurethral needle ablation device for use with the human hand for radio frequency ablation of a target volume in the tissue of a prostate of a human male having a bladder with a base and a penis with a urethra therein formed by a urethral wall extending into the base of the bladder along a longitudinal axis with the tissue of the prostate surrounding the urethra near the base of the bladder. The device comprises a bridge having proximal and distal extremities and having a passage therein extending from the proximal extremity to the distal extremity. A sheath having proximal and distal extremities is secured to the bridge and has a passageway therein in communication with the passage in the bridge. The sheath is sized so that it can enter the urethra and has a length so that when its distal extremity is in the vicinity of the prostate, the proximal extremity is outside the urethra. A disposable needle assembly having proximal and distal extremities is removably mounted in the passage in the bridge and extends through the passageway in the sheath. The needle assembly includes at least one needle electrode and an insulating sleeve coaxially disposed on the needle electrode. The proximal extremity of the needle assembly is caused to be moved sideways at an angle with respect to the longitudinal axis to face the urethral wall. A mechanism is carried by the proximal extremity of the needle assembly and the bridge for causing advancement of the needle electrode and the insulation sleeve thereon through the urethral wall and into the target volume in the tissue of the prostate with a portion of the electrode being free of the insulation but with the insulation extending through the urethral wall.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
VIDAMED, INC.MENLO PARK, CA31

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baker, Jr James A Grass Valley, CA 10 1042
Edwards, Stuart D Los Altos, CA 276 34337
Jones, Christopher S Palo Alto, CA 68 1788
Lee, Kee S Daly City, CA 14 1258
Lundquist, Ingemar H Pebble Beach, CA 67 9254
Sommer, Phillip R Newark, CA 33 1439

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
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UNWIRED PLANET, LLC (1)
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Patent Citation Ranking

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Other [Check patent profile for assignment information] (1)
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6,516,223 Apparatus for electroporation mediated delivery for drugs and genes 58 2001
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SERPOMED LTD. (1)
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MAQUET CARDIOVASCULAR LLC (11)
7,033,352 Flexible ablation instrument 31 2000
7,099,717 Catheter having improved steering 7 2002
7,052,491 Vacuum-assisted securing apparatus for a microwave ablation instrument 17 2002
7,115,126 Directional microwave ablation instrument with off-set energy delivery portion 29 2002
7,192,427 Apparatus and method for assessing transmurality of a tissue ablation 82 2003
6,976,986 Electrode arrangement for use in a medical instrument 56 2004
7,303,560 Method of positioning a medical instrument 13 2004
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HARMONIA MEDICAL TECHNOLOGIES, INC. (1)
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Endoluminal Therapeutics, Inc. (1)
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7,066,935 Ion eluting tuna device 3 2004
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7,261,709 Transurethral needle ablation system with automatic needle retraction 13 2004
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8,386,055 Implantable lead with isolated contact coupling 0 2011
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* Cited By Examiner