51
Michael H Johnson: Method and apparatus for testing, completion and/or maintaining wellbores using a sensor device. Baker Hughes Incorporated, Rosenblatt & Redano P C, November 3, 1998: US05829520 (314 worldwide citation)

The present invention is an improved method and apparatus for testing and monitoring wellbore operations. The invention is (1) a data acquisition device capable of monitoring, recording wellbore and/or reservoir characteristics while capable of fluid flow control; and (2) a method of monitoring and/ ...


52
George E Cimochowski, George W Keilman: Endoluminal implant with fluid flow sensing capability. VascuSense, Ronald M Anderson, October 19, 1999: US05967986 (311 worldwide citation)

A stent or graft stent energized from an external power source is provided with one or more sensors to sense a parameter, producing a signal that is transmitted outside a vessel in which the stent is implanted. At least a portion of a body of the stent or an insulated electrical conductor comprises ...


53
Mark A Christopherson, Chike O Onyekaba: Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue. Medtronic, Banner & Witcoff, March 25, 2003: US06537272 (308 worldwide citation)

The present invention provides an apparatus and a method for producing a virtual electrode within or upon a tissue to be treated with radio frequency alternating electric current, such tissues including but not limited to brain, liver, cardiac, prostate, breast, and vascular tissues and neoplasms. A ...


54
E Skott Greenhalgh: Endovascular valve. Prodesco, Synnestvedt & Lechner, December 17, 2002: US06494909 (295 worldwide citation)

A one-way valve suitable for implant in the human vascular system is disclosed. The valve is formed by a tube of braided filaments and has an upstream end supported in an open configuration by a radial support. The valve has a downstream portion formed by a plurality of flexible leaflets resiliently ...


55
Gregory G Brucker, Jerome Philip Saul, Steven D Savage: Fluid cooled and perfused tip for a catheter. Angeion Corporation, Patterson & Keough P A, July 1, 1997: US05643197 (294 worldwide citation)

The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on a tip of a catheter, prevents the impedance rise of tissue in contact with the catheter tip, and maximizes the energy transfer to the tissue, thereby allowing an increase ...


56
John E Abele, Charles E Lennox, Paul C Nardella, Sharad H Joshi: Heating catheters. Boston Scientific Corporation, Fish & Richardson, September 29, 1992: US05151100 (288 worldwide citation)

A catheter device and method for heating tissue, the device having a catheter shaft constructed for insertion into a patient's body, and at least one chamber mounted on the catheter shaft. The catheter shaft has at least one lumen for fluid flow through the shaft. The chambers are defined by walls t ...


57
Assaf Govari, Maier Fenster: Pressure-sensing stent. Biosense, Paul A Coletti, Louis J Capezzuto, April 25, 2000: US06053873 (286 worldwide citation)

Implantable apparatus for measuring a fluid flow in the body of a subject, including a stent, having a generally cylindrical radial outer wall and a central lumen. A flow parameter sensor is fixed to the stent, and measures a parameter relating to a rate of blood flow through the stent. A transmitte ...


58
Michael L Marin, Ralph Marin: Apparatus and method for deployment of radially expandable stents by a mechanical linkage. Stentco, Darby & Darby, August 22, 1995: US05443477 (285 worldwide citation)

The invention provides a method and apparatus for intraluminal delivery and deployment of an expandable prosthesis at a site within a body lumen. The apparatus for intraluminal delivery and deployment includes a support for supporting the expandable prosthesis while being delivered to the site withi ...


59
Kristian DiMatteo, Peter Marshall: Implantable prosthetic valve. SciMed Life Systems, Hoffman & Baron, February 3, 2004: US06685739 (282 worldwide citation)

A prosthetic valve for implantation within a fluid conducting lumen within a body includes an elongate generally cylindrical radially collapsible valve body scaffold defining a fluid passageway therethrough for retentive positioning within the lumen. A radially collapsible leaf valve member is suppo ...


60
Erik T Engelson, Gene Samson, Kim Nguyen, Rose Y Wong: Mechanical clot treatment device. Target Therapeutics, Morrison & Foerster, October 26, 1999: US05972019 (280 worldwide citation)

This is a medical device. In particular, it is a surgical device usually delivered through an intravascular catheter. It may be used in several ways. It may, for instance, be used to open a clear passageway adjacent thrombus to allow both blood and medication to bypass the clot. It may be used to pi ...



Click the thumbnails below to visualize the patent trend.