Bachelors, Bachelor of Science In Electrical Engineering
School / High School:
University of Washington
1992 to 1996
Specialities:
Communication
Skills
Medical Devices • R&D • Design Control • Iso 13485 • Systems Engineering • Design For Manufacturing • Validation • Labview • Design of Experiments • V&V • Capa • Product Development • Solidworks • Quality System • Testing
Nuvaira, Inc.
Director of Research and Development
Holaira, Inc. Feb 2011 - Jul 2014
Project Manager, Systems Engineering
Coaptus Medical Corp 2004 - Feb 2011
Senior Electrical Engineer
Pathway Medical 1999 - 2004
Senior R and D Engineer
Boston Scientific 1996 - 1999
R and D Engineer
Education:
University of Washington 1992 - 1996
Bachelors, Bachelor of Science In Electrical Engineering, Communication
Skills:
Medical Devices R&D Design Control Iso 13485 Systems Engineering Design For Manufacturing Validation Labview Design of Experiments V&V Capa Product Development Solidworks Quality System Testing
Us Patents
Device And Method For Percutaneous Myocardial Revascularization
David E. Wentzel - Issaquah WA Ryan Kaveckis - Seattle WA
Assignee:
SciMed Life Systems, Inc. - Maple Grove MN
International Classification:
A61B 1818
US Classification:
606 34
Abstract:
Methods and devices for performing percutaneous myocardial revascularization without disrupting the blood pumping activity of the heart. A percutaneous myocardial revascularization system including an active electrode disposed at the end of a catheter and a radio frequency generator coupled to the active electrode for delivering radio frequency energy thereto. Radio frequency energy is selectively applied to the active electrode when the active electrode is properly positioned and when the heart is not in a vulnerable stage of the cardiac rhythm.
Rf Ablation And Ultrasound Catheter For Crossing Chronic Total Occlusions
Chandru V. Chandrasekaran - Mercer Island WA Zihong Guo - Bellevue WA Anthony J. Pantages - Los Altos CA Donald Masters - Sunnyvale CA Ryan Kaveckis - Seattle WA
Assignee:
Scimed Life Systems, Inc. - Maple Grove MN
International Classification:
A61B 800
US Classification:
600439, 600466, 607122
Abstract:
A combination catheter includes an ultrasound transducer and RF ablation electrode. The ultrasound transducer transmits ultrasound signals into and receives echo signals from a vessel. The echo signals are processed and used to produce an image of the tissue surrounding the catheter. A driveshaft rotates the ultrasound transducer to obtain a 360Â view of the vessel wall. At the distal end of the driveshaft is an electrode. An RF generator is electrically coupled to the driveshaft to deliver RF energy to the electrode at the distal end of the driveshaft to ablate occluding material in the vessel. The electrode may have a variety of tip shapes including concave, roughened, or expandable configurations, depending on the size of the vessel and composition of the occluding material to be ablated. Alternatively, the RF ablation energy may be delivered to a guidewire that is used to route the ultrasound catheter through a patients vasculature. Finally, a steerable catheter can be used to further position the ultrasound catheter and ablation electrode in the vessel.
Rf Ablation And Ultrasound Catheter For Crossing Chronic Total Occlusions
Chandru V. Chandrasekaran - Mercer Island WA Zihong Guo - Bellevue WA Anthony J. Pantages - Los Altos CA Donald Masters - Sunnyvale CA Ryan Kaveckis - Seattle WA
Assignee:
SciMed Life Systems, Inc. - Maple Grove MN
International Classification:
A61B 800
US Classification:
600439, 600466, 607122
Abstract:
A combination catheter includes an ultrasound transducer and RF ablation electrode. The ultrasound transducer transmits ultrasound signals into and receives echo signals from a vessel. The echo signals are processed and used to produce an image of the tissue surrounding the catheter. A driveshaft rotates the ultrasound transducer to obtain a 360Â view of the vessel wall. At the distal end of the driveshaft is an electrode. An RF generator is electrically coupled to the driveshaft to deliver RF energy to the electrode at the distal end of the driveshaft to ablate occluding material in the vessel. The electrode may have a variety of tip shapes including concave, roughened, or expandable configurations, depending on the size of the vessel and composition of the occluding material to be ablated.
Percutaneous Myocardial Revascularization Basket Delivery System And Radiofrequency Therapeutic Device
Lauri DeVore - Seattle WA Louis Ellis - St. Anthony MN Gary L. Hendrickson - Big Lake MN Daniel M. Lafontaine - Plymouth MN Zihong Guo - Bellevue WA Ryan Kaveckis - Seattle WA
Assignee:
SciMed Life Systems, Inc. - Maple Grove MN
International Classification:
A61B 1814
US Classification:
606 45, 606 47, 606 48, 606170, 606186
Abstract:
An intravascular device and methods for forming multiple percutaneous myocardial revascularization (PMR) holes in a heart chamber wall simultaneously. One device includes a basket formed of flexible arms carrying cutting probes over their length. The basket arms are outwardly arcuately biased so as to assume an outwardly bowed, arcuate shape when unconstrained. The device includes an inner shaft distally secured to a proximal portion of the basket and slidably disposed within an outer shaft. The inner shaft and collapsed basket can be retracted within the outer shaft, delivered intravascularly to the left ventricle, and distally advanced, forcing the basket to assume the bowed shape. Radio frequency current supplied to the electrical cutting probes burn holes into the ventricle wall and myocardium. One embodiment has high pressure fluid jet cutting means. Another embodiment uses a basket as an anchor to position a steerable cutting probe.
Systems And Methods For Transeptal Cardiac Procedures, Including Tissue Penetrating Members And Associated Methods
Larry B. Kulesa - Bothell WA, US Ryan E. Kaveckis - Everett WA, US David C. Auth - Kirkland WA, US
Assignee:
CoAptus Medical Corporation - Redmond WA
International Classification:
A61B 18/14
US Classification:
606 41
Abstract:
Systems and methods for transeptal cardiac procedures are disclosed. A method for treating a patient in accordance with a particular embodiment includes positioning a tissue penetrating guidewire adjacent to a cardiac septum, directing pulses of energy to the guidewire, and advancing the guidewire into and through the septum by moving the guidewire in a distal direction in a series of discrete steps. Individual steps can be of a predetermined distance measured outside the patient's body. The method can further include passing a catheter over the guidewire after the guidewire has passed through the septum.
Tissue-Penetrating Guidewires With Shaped Tips, And Associated Systems And Methods
Larry B. Kulesa - Bothell WA, US David C. Auth - Kirkland WA, US Ryan E. Kaveckis - Everett WA, US
Assignee:
CoAptus Medical Corporation - Redmond WA
International Classification:
A61B 18/14
US Classification:
606 41
Abstract:
Tissue-penetrating guidewires with shaped tips, and associated systems and methods are disclosed. A patient treatment system in accordance with one embodiment of the disclosure includes a tissue-penetrating guidewire that in turn includes a flexible segment having a distal portion and a proximal portion. The flexible segment is elongated along an elongation axis. A penetrating member is positioned at the distal portion and includes at least one blade segment having a tapered outer peripheral surface and an adjacent generally sharp edge. The blade segment extends to a distal end of the penetrating member to form a generally blunt tip. In operation, the guidewire can be connected to an electrical current source to deliver high frequency current to the penetrating member.
Control Systems For Patient Devices, Including Devices For Securing Cardiovascular Tissue, And Associated Methods
Ryan Kaveckis - Everett WA, US Mark Tempel - Sammamish WA, US Christopher Genau - Seattle WA, US
Assignee:
CoAptus Medical Corporation - Redmond WA
International Classification:
A61B 18/14
US Classification:
606041000, 606049000
Abstract:
Control systems for patient devices, including devices for securing cardiovascular tissue, and associated methods, are disclosed. A system in accordance with one embodiment includes a controller coupleable to an energy transmitter configured to be introduced into a patient's body. The controller can have a power delivery component that is configured to automatically deliver and automatically terminate a full dose of energy to the energy transmitter at only a single predetermined energy level that is not user changeable. The controller can further include an activation device coupled to the power delivery component to initiate delivery of the energy.
Systems And Methods For Securing Cardiovascular Tissue, Including Via Asymmetric Electrodes
David Auth - Kirkland WA, US Christopher Genau - Seattle WA, US Joseph Eichinger - Everett WA, US Mark Tempel - Sammamish WA, US Ryan Kaveckis - Everett WA, US William Gray - New York NY, US Blair Erbstoeszer - Kirkland WA, US
Assignee:
CoAptus Medical Corporation - Redmond WA
International Classification:
A61B 18/14
US Classification:
606041000, 606049000
Abstract:
Systems and methods for securing cardiovascular tissue, including via asymmetric electrodes, are disclosed. A device in accordance with one embodiment includes a catheter having a proximal end and a distal end, with a working portion positioned toward the distal end and being elongated along a terminal axis. The device can further include an energy transmitter (e.g., an electrode) at the working portion of the catheter, with the energy transmitter tapered inwardly toward the terminal axis in a distal direction. The energy transmitter can be asymmetric relative to the terminal axis. In further particular embodiments, other components of the catheter (e.g., an inflatable member, guidewire conduit, and/or catheter bend angle) can also be asymmetric relative to the terminal axis, and in still further particular embodiments, some or all of the foregoing elements can have particular alignments relative to each other.
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