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Stephen A Leeflang

from Stanford, CA
Age ~50
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Also known as:
Stephen Arie Leeflang, Stephen A Lee, Sally Leeflang
Phone and address:
649 Mirada Ave, Palo Alto, CA 94305
Related to:
Carla G Craigo, 69Pieter W Leeflang, 39Stuart HamlettCanessa Leeflang, 41Alexandra LeeflangCraigo L Canessa, 41
Connected to:
Claudia K Leeflang, 67Conchita C Leeflang, 54Matthew D Leeg, 50Rhonda Leegaard, 61Brian J Leegan, 52Adam J Leeger, 53Mila J Leegstra, 49Jacqueline D Leehan, 62Laurie A Leehan, 63Timothy S Leehealey, 50

Stephen Leeflang Phones & Addresses

  • 649 Mirada Ave, Stanford, CA 94305
  • 10664 S Hidden Ridge Ln, Sandy, UT 84092
  • 604 Arcadia Ter, Sunnyvale, CA 94085 (408) 616-7773
  • Sunrise Beach, MO
  • Simi Valley, CA
  • Salt Lake City, UT
  • Santa Clara, CA
  • 956 Larkspur Ave, Sunnyvale, CA 94086 (408) 616-7773

Work

Position: Administration/Managerial

Resumes

Resumes

Stephen Leeflang Photo 1

Vice President R&D At Acumen Medical

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Location:
San Francisco Bay Area
Industry:
Medical Devices
Stephen Leeflang Photo 2

Stephen Leeflang

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Location:
San Francisco Bay Area
Industry:
Medical Devices
Stephen Leeflang Photo 3

Stephen Leeflang

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Location:
San Francisco Bay Area
Industry:
Medical Devices

Business Records

Name / Title
Company / Classification
Phones & Addresses
Stephen Leeflang
Managing
Atrevo, LLC
Consulting · Business Services at Non-Commercial Site
2160 Yale St, Palo Alto, CA 94306
Stephen Leeflang
AUST DEVELOPMENT , LLC
Nonclassifiable Establishments · Design Services · Engineering Services
144 S Whisman Rd STE H, Mountain View, CA 94041
2160 Yale St, Palo Alto, CA 94306

Publications

Us Patents

Apparatus And Methods For Capturing Particulate Material Within Blood Vessels

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US Patent:
6635070, Oct 21, 2003
Filed:
May 21, 2001
Appl. No.:
09/862174
Inventors:
Stephen Leeflang - Stanford CA
Denise DeMarais - San Jose CA
Michael Evans - Palo Alto CA
Assignee:
Bacchus Vascular, Inc. - Santa Clara CA
International Classification:
A61M 2900
US Classification:
606200
Abstract:
An apparatus includes a jet housing including an inlet and an outlet, and a nozzle within the jet housing for injecting fluid towards the outlet. A filter element is disposed on the inlet, the filter element including openings for preventing particulate larger than a predetermined size from entering the inlet. The jet housing is positioned within a blood vessel, and fluid is injected from the nozzle towards the outlet to create a vacuum at the inlet, thereby causing fluid downstream of the outlet to flow retrograde through the vessel around the jet housing into the inlet. The filter element prevents particulate from entering the inlet, thereby effectively capturing the particulate, which may be aspirated. Alternatively, a filter element is used to filter particulate during a procedure. The filter element everts from a tubular to an everted configuration for capturing particulate.

Expansible Shearing Catheters For Thrombus Removal

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US Patent:
6652548, Nov 25, 2003
Filed:
Mar 30, 2001
Appl. No.:
09/823652
Inventors:
Michael A. Evans - Palo Alto CA
Denise M. Demarais - San Jose CA
Stephen A. Leeflang - Stanford CA
Christian S. Eversull - Palo Alto CA
Assignee:
Bacchus Vascular Inc. - Santa Clara CA
International Classification:
A61D 102
US Classification:
606159
Abstract:
Devices, methods, kits, and methods remove clot material from the vasculature and other body lumens. Expansible baskets may be used as cooperating radially expansible shearing members. Helically oriented struts of each basket may wind in a uniform circumferential direction. The struts can be independently flexible, allowing the shearing members to flex axially together. The inner basket may be rotatably driven and may use an axial pump extending proximally from the shearing members and/or a distal penetrator for advancing into an occlusion which inhibits guidewire access. The struts may slide substantially continuously across each other, and may be sufficiently aggressive for highly effective thrombectomy.

Systems And Methods For Clot Disruption And Retrieval

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US Patent:
6660014, Dec 9, 2003
Filed:
Jun 3, 2002
Appl. No.:
10/162276
Inventors:
Denise Demarais - San Jose CA
Michael A. Evans - Palo Alto CA
Stephen A. Leeflang - Stanford CA
Christian S. Eversull - Palo Alto CA
Assignee:
Bacchus Vascular, Inc. - Santa Clara CA
International Classification:
A61B 1722
US Classification:
606128, 606159
Abstract:
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.

System And Methods For Clot Dissolution

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US Patent:
6663613, Dec 16, 2003
Filed:
Jan 25, 2000
Appl. No.:
09/491401
Inventors:
Michael A. Evans - Palo Alto CA
Denise M. Demarais - San Jose CA
Christian S. Eversull - Palo Alto CA
Stephen A. Leeflang - Stanford CA
Assignee:
Bacchus Vascular, Inc. - Santa Clara CA
International Classification:
A61M 2500
US Classification:
604523, 604264, 604 35, 604 9501, 604 9601, 60410101, 60410103, 60410104
Abstract:
Clot disruption and dissolution are achieved using a catheter having both an agitator and the ability to deliver a thrombolytic agent. The catheter is introduced to a target region with a blood vessel and the agitator manipulated to engage and disrupt a region of clot therein. The thrombolytic agent, such as tPA, streptokinase, or urokinase, is directly released into the clot at the point where the agitator is engaging the clot. In this way, the thrombolytic activity of the agent is enhanced and the dissolution of the clot is improved.

Apparatus And Methods For Clot Dissolution

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US Patent:
6929633, Aug 16, 2005
Filed:
Oct 21, 2002
Appl. No.:
10/278735
Inventors:
Michael A. Evans - Palo Alto CA, US
Denise Demarais - Los Gatos CA, US
Dino De Cicco - San Jose CA, US
Kelvin Ning - Palo Alto CA, US
Alexander Khairkhahan - Palo Alto CA, US
Tyler Jon Strang - Palo Alto CA, US
Jody Maria Cimbalo - Mountain View CA, US
Stephen Leeflang - Stanford CA, US
Assignee:
Bacchus Vascular, Inc. - Santa Clara CA
International Classification:
A61M031/00
US Classification:
604509, 60410104, 604510, 604523, 604264, 604 35, 60410201
Abstract:
Clot disruption and dissolution are achieved using a catheter having the ability to infuse a thrombolytic agent, agitate the clot and agent, and aspirate broken-up clot from the blood vessel. A flow resistor in the catheter provides for infusion and/or aspiration to be concentrated primarily at a clot treatment area in a blood vessel while also providing optional infusion and/or aspiration distal to the treatment area. In some embodiments, infusion, aspiration and guidewire passage occur through a common lumen. The thrombolytic agent, such as tPA, streptokinase, or urokinase, is directly released into the clot at the point where the agitator is engaging the clot. In this way, the thrombolytic activity of the agent is enhanced and the dissolution of the clot is improved.

Systems And Methods For Clot Disruption And Retrieval

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US Patent:
6945977, Sep 20, 2005
Filed:
Oct 6, 2003
Appl. No.:
10/680367
Inventors:
Denise Demarais - Los Gatos CA, US
Michael A. Evans - Palo Alto CA, US
Stephen A. Leeflang - Stanford CA, US
Christian S. Eversull - Palo Alto CA, US
Assignee:
Bacchus Vascular, Inc. - Santa Clara CA
International Classification:
A61B017/22
US Classification:
606128, 606159
Abstract:
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.

Apparatus And Methods For Coronary Sinus Access

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US Patent:
6979290, Dec 27, 2005
Filed:
May 29, 2003
Appl. No.:
10/447526
Inventors:
Nicholas J. Mourlas - Mountain View CA, US
Christian Scott Eversull - Palo Alto CA, US
Stephen Arie Leeflang - Stanford CA, US
Asha Shrinivas Nayak - Menlo Park CA, US
David John Miller - Palo Alto CA, US
Assignee:
The Board of Trustees of the Leland Stanford Junior University - Palo Alto CA
International Classification:
A61B001/04
US Classification:
600115, 600116, 600104
Abstract:
An apparatus for locating morphological features within a body cavity includes a catheter including proximal and distal ends, a transparent balloon carried on the distal end, and an optical imaging assembly carried on the distal end for imaging through the balloon. The balloon includes a channel extending therethrough to a lumen extending through the catheter. A guidewire or other localization member is received in the lumen that is extendabe through the channel. During use, the catheter is inserted into a right atrium of a heart, and the balloon is expanded and placed against the wall of the heart to locate the coronary sinus. Sufficient force is applied to clear blood between the surface and the wall and clear the field of view of the imaging assembly. The catheter is manipulated to locate the coronary sinus, whereupon the localization member is advanced into the coronary sinus.

Devices For Percutaneous Remote Endarterectomy

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US Patent:
7517352, Apr 14, 2009
Filed:
Mar 27, 2001
Appl. No.:
09/820084
Inventors:
Michael Evans - Palo Alto CA, US
Denise Demarais - San Jose CA, US
Gwendolyn Watanabe - Sunnyvale CA, US
Stephen Leeflang - Stanford CA, US
Assignee:
Bacchus Vascular, Inc. - Santa Clara CA
International Classification:
A61M 29/00
US Classification:
606192, 606167
Abstract:
The present invention provides devices, systems, methods and kits for the percutaneous removal of unwanted tissue or obstructive matter from body cavities or lumens, particularly from the vasculature. Blood vessels, including the coronary, peripheral and neurovascular circulation, which are narrowed or blocked by atheromatous material or plaque are often treated with traditional endarterectomy procedures. The present invention allows the benefits of such a procedure with an intraluminal approach, particularly a percutaneous approach. Generally, the present invention provides a set of catheters or tools which are percutaneously introduceable to the site of the blockage or occlusion. The tools dissect or cut through the innermost tissue layer of the lumen to an underlying tissue layer. The innermost tissue layer is then stripped away from the underlying layer with the occlusive material thereattached. The detached tissue layer and occlusive material is then removed from the lumen; this may include additional cutting, maceration and removal through mechanical aspiration.
Control profile
Stephen A Leeflang from Stanford, CA, age ~50 Get Report