DR. CHRISTIAN S EVERSULL, M.D.
Osteopathic Medicine at Pasteur Dr, Palo Alto, CA

7762995, Jul 27, 2010

Apr 24, 2003

10/423321

Christian Scott Eversull - Palo Alto CA, US
Nicholas J. Mourlas - Mountain View CA, US
Stephen Arie Leeflang - Stanford CA, US
Asha Shrinivas Nayak - Menlo Park CA, US
David John Miller - Palo Alto CA, US

The Board of Trustees of the Leland Stanford Junior University - Palo Alto CA

A61M 5/00

604264

Apparatus and methods are provided for accessing body lumens and/or for delivering instruments into body lumens, e. g. , vessels within a patient's vasculature. A flexible sheath is provided that is expandable from a contracted condition to an enlarged condition wherein the sheath at least partially defines a lumen therein. The sheath is lubricious and has a relatively thin wall, thereby providing a collapsible/expandable guide for delivering fluids and/or instruments through tortuous anatomy and/or into relatively narrow passages. The sheath is advanced from an entry site to a body lumen in the contracted condition. Once the sheath reaches a target body lumen, the sheath is expanded to the enlarged condition, thereby defining a lumen within the sheath, and fluids and/or instruments are introduced into the body lumen via the sheath lumen. Upon completing the procedure, the sheath is removed from the body lumen.

2011025, Oct 20, 2011

Jun 23, 2011

13/167066

Christine P. Ventura - San Jose CA, US
Alfonso N. Pulido - Palo Alto CA, US
Stephen A. Leeflang - Sunnyvale CA, US
Christian S. Eversull - Palo Alto CA, US

A61M 25/10

604 9601, 60416403

Apparatus and methods are provided for providing access to a body lumen, e.g., to deliver a pacing lead within a patient's heart. The apparatus includes a tubular member including a proximal end, a distal end sized for insertion into a body lumen, and a lumen extending therebetween. An elongate member extends from the distal end of the tubular member. An expandable sheath extends along at least a portion of the elongate member, the sheath being expandable from a contracted condition to facilitate insertion into a body lumen, and an enlarged condition wherein the sheath at least partially defines a lumen communicating with the tubular member lumen. A stylet or other shaped element is insertable into the elongate member for changing a shape of at least a distal tip of the elongate member, e.g., for accessing side branches extending from a body lumen, e.g., within a patient's coronary venous system.

6454775, Sep 24, 2002

Dec 6, 1999

09/454517

Denise Demarais - San Jose CA
Michael A. Evans - Palo Alto CA
Stephen A. Leeflang - Stanford CA
Christian S. Eversull - Palo Alto CA

Bacchus Vascular Inc. - Santa Clara CA

A61B 1722

606128, 606159

Thrombectomy and other treatments are achieved using a catheter having a positioning cage and a macerator within the positioning cage. The catheter is introduced to a target body lumen, typically a blood vessel, and a positioning cage deployed at a treatment site. The macerator is then operated to disrupt thrombus, clot, or other occlusive materials at the treatment site, and the catheter is used to collect and remove the disruptive materials from the body lumen. In particular examples, the macerator may be radially expansible and optionally rotated and/or axially translated within the positioning cage to effect disruption of the occlusive material.

8545447, Oct 1, 2013

Aug 20, 2012

13/589431

Denise M. Demarais - Los Gatos CA, US
Stephen A. Leeflang - Sunnyvale CA, US
Michael A. Evans - Palo Alto CA, US
Gwendolyn A. Watanabe - Sunnyvale CA, US
Christian S. Eversull - Palo Alto CA, US

Covidien LP - Mansfield MA

A61M 5/178

604159

Material transport catheters and methods for their use rely on rotation of an impeller within a catheter body and a clearing element for preventing buildup of materials at the opening of the catheter body. The impeller preferably comprises an inner tube or shaft having a helical rotor fainted over an outer surface thereof. The clearing element may comprise a free end of a structure near the distal end of the catheter body for disrupting clot, wherein the free end of the structure extends into the distal opening of the catheter body to break up materials as the impeller is rotated. Alternatively, the clearing element may comprise a cutting member disposed at the distal opening of the catheter body.

7553387, Jun 30, 2009

Jan 26, 2006

11/340904

Stephen A. Leeflang - Sunnyvale CA, US
Christian S. Eversull - Palo Alto CA, US
Nicholas J. Mourlas - Mountain View CA, US
Christine P. Ventura - San Jose CA, US

ILH, LLC - Palo Alto CA

B32B 37/00

156217, 156203, 156 84, 156 86, 156244, 156 18, 156 85, 156218, 156216, 156184, 156278, 156251, 604 19, 604523, 604265, 428 36, 427 21

A method for making a tubular device includes coating a first surface of a thin sheet, rolling the sheet such that side edges of the sheet are disposed adjacent one another with the coating disposed inwardly, creating a longitudinal seam along the side edges to create a sleeve, and attaching a tubular structure around the sleeve. In another embodiment, the method includes coating a first surface of a thin sheet, wrapping the sheet partially around a mandrel with the coating disposed inwardly, positioning a slotted tube around the sheet and mandrel, attaching the tube to the thin, and trimming any excess material of the sheet. In another embodiment, the method includes coating an outer surface of a thin sleeve, inverting the sleeve, and attaching a tubular structure around the inverted sleeve, thereby providing a tubular device including a lubricious, hydrophilic, and/or otherwise coated inner surface.

8070898, Dec 6, 2011

Mar 10, 2009

12/401595

Christian S. Eversull - Palo Alto CA, US
Stephen A. Leeflang - Sunnyvale CA, US

CLPH, LLC - Palo Alto CA

B29C 63/10

156184

Apparatus and methods are provided for creating tubular devices, e. g. , as components for catheters, sheaths, and or other devices sized for introduction into a patient. In one embodiment, a method is provided for making a tubular device using a sheet of material including a coated first surface. The sheet is rolled around a mandrel until longitudinal edges of the sheet are disposed near or adjacent one another, e. g. , without attaching the longitudinal edges together. A tubular braid is positioned over the sheet-wrapped mandrel, one or more tubular segments are positioned over the tubular braid, and heat shrink tubing is positioned over the tubular segments. The resulting assembly is heated to cause the tubular segments to at least partially reflow and/or otherwise laminate the tubular segments to the tubular braid and sheet. The heat shrink tubing and mandrel are then removed to create the tubular device.

2007001, Jan 18, 2007

May 6, 2006

11/382026

Stephen Leeflang - Sunnyvale CA, US
George Morrison - Austin TX, US
Nicholas Mourlas - Mountain View CA, US
Christian Eversull - Palo Alto CA, US

A61M 31/00, A61B 1/06

604095040, 600160000

Apparatus and methods are provided for accessing a body lumen within a patient's body. Generally, the apparatus includes a tubular member including proximal and distal ends, a steering element extending between the proximal and distal ends, and an actuator for directing the distal end between a relaxed configuration and a complex curved configuration. In the relaxed configuration, the distal end may assume a straight or curved shape. In the complex curved configuration, the distal end may assume a curvilinear shape. In one embodiment, the complex curved configuration may include a first curved portion defining an arc within a plane, and a second portion that extends out of the plane. An embodiment with a left hand rule configuration may be introduced into the right atrium of a heart from a superior approach, and the complex curved configuration may facilitate accessing the coronary sinus.

2007001, Jan 18, 2007

Apr 20, 2006

11/379562

Christian Eversull - Palo Alto CA, US
Stephan Leeflang - Sunnyvale CA, US
Nicholas Mourlas - Mountain View CA, US

A61B 1/00

600114000

An apparatus for imaging a body structure within a body cavity includes a catheter including proximal and distal ends, an imaging element on the distal end, and an extension extending distally from the distal end for contacting a surface of a body cavity into which the catheter is introduced. The extension has a length to maintain the optical imaging element away from the surface. Optionally, a transparent member, e.g., an expandable balloon, may be attached to the distal end of the tubular member and the extension to isolate the imaging element from contact with fluid within the body cavity. During use, the catheter is inserted into a chamber of a beating heart, and the extension and/or balloon is placed against the wall of the chamber. Sufficient force is applied to stabilize the imaging element relative to the wall while the heart is beating.