Ling G Wang

US Patent:

6445447, Sep 3, 2002

Filed:

Mar 24, 1998

Appl. No.:

09/047202

Inventors:

Ling Wang - Eden Prairie MN
Li Li - Bloomington MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G01N 2100

US Classification:

3562372, 3562433, 3562434

Abstract:

An optical certifying head flies above a disc surface within an evanescent decay length of the disc surface. A light beam is focused through an objective lens, and further focused through a SIL. The SIL-focused light is coupled to the disc surface through near-field coupling. The light is reflected from the disc surface depending on a surface condition of the disc such that the surface condition can be determined.

US Patent:

6483667, Nov 19, 2002

Filed:

Jul 15, 1999

Appl. No.:

09/354419

Inventors:

Lowell J. Berg - Minnetonka MN
James R. Krolnik - Burnsville MN
Scott E. Ryun - Prior Lake MN
James J. Stolte - Minneapolis MN
Yu-Li Chang - Prior Lake MN
Lanshi Zheng - Eden Prairie MN
Ling L. Wang - Eden Prairie MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 560

US Classification:

3602356

Abstract:

A self-loading disc head-slider has a slider body, with a leading slider edge and a trailing slider edge, and first and second raised rails. Each raised rail has a leading rail edge, inside and outside rail edges and a bearing surface. A cavity dam extends between the first and second raised rails. A subambient pressure cavity trails the cavity dam, between the first and second raised rails. A stepped leading taper extends from the leading slider edge to the bearing surfaces of the first and second raised rails. The stepped leading taper is formed of first and second steps. The first step is positioned along the leading slider edge. The second step wraps around the leading rail edges of the first and second raised rails and extends along a portion of the inside and outside rail edges of the first and second raised rails. The first and second steps have a step height of 0. 05 to 1. 5 microns.

US Patent:

6997938, Feb 14, 2006

Filed:

Feb 12, 2002

Appl. No.:

10/075485

Inventors:

Ling Wang - Eden Prairie MN, US
Martin Willard - Burnsville MN, US

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61M 29/00

US Classification:

606200

Abstract:

Catheters for retrieval or delivery of an embolic protection device from the vasculature comprise an outer sheath having a side opening for receiving a guidewire with an embolic protection device at distal end and an inner shaft having a port and a plurality of flush holes in addition to the port. Methods for retrieving and delivering an embolic protection device are disclosed.

US Patent:

8340759, Dec 25, 2012

Filed:

Apr 22, 2011

Appl. No.:

13/092367

Inventors:

Peter B. McIntyre - Mounds View MN, US
Bernard Q. Li - Plymouth MN, US
Ling Wang - Plymouth MN, US
Shangqian P. Zhang - Shoreview MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/00

US Classification:

607 2

Abstract:

Techniques related to coils for medical device are disclosed. One example coil may comprise multiple filars, each being formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements from a group consisting of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin. At least one of the multiple filars may be electrically insulated one from another. A structural body, such as a lead body, may carry the coil. One or more filars may carry a low-resistance core.

US Patent:

8377035, Feb 19, 2013

Filed:

Jan 17, 2003

Appl. No.:

10/346697

Inventors:

Pu Zhou - Plymouth MN, US
Ling Wang - Eden Prairie MN, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61M 25/00

US Classification:

604524

Abstract:

A medical device shaft including an unbalanced braid reinforcement layer. The reinforcement layer may be an unbalanced braid by having a first set of strands and a second set of strands, the sets wound in opposing directions on a mandrel or on the device shaft. The first set and second set may have different numbers of strands, sizes of strands, or pitch, or combinations thereof. In some embodiments, the unbalanced braid increases contact area between the inner layer and the outer layer of the shaft without compromising the function of the braid. In other embodiments, the variations in strand size and number between the first set and the second set allows improved kink and torque performance in a reduced thickness braid layer. The improved shaft of the present invention may be incorporated into a wide variety of medical devices such as guide catheters, diagnostic catheters, balloon catheters, etc.

US Patent:

8639352, Jan 28, 2014

Filed:

Apr 6, 2009

Appl. No.:

12/419082

Inventors:

Ling Wang - Plymouth MN, US
Bernard Q. Li - Plymouth MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/04

US Classification:

607116, 607115, 174102 R, 1741261, 600372

Abstract:

A filar includes an inner conductive core that is formed of a low-resistivity material such as silver having a resistivity of less than 20 μΩ per centimeter. A conductive coil is provided around the core to form a filar. This coil is formed of a biocompatible alloy or super alloy having an ultimate tensile strength (UTS) of between 150 kilo pounds per square inch (ksi) and 280 ksi at room temperature. Examples of such alloys include CoCrMo, CoFeCrMo, and CoFeNiCrMo. In one specific embodiment, the alloy is MP35N (CoNiCrMo), which may be low-titanium (“low-ti”) MP35N. One or more such filars may be included within a wire. This wire may be carried by an implantable medical apparatus such as a lead, lead extension, or catheter. The wire may electrically couple elements such as connector electrodes to conducting electrodes or sensors.

US Patent:

20050049610, Mar 3, 2005

Filed:

Sep 2, 2004

Appl. No.:

10/932716

Inventors:

Ling Wang - Eden Prairie MN, US
Martin Willard - Burnsville MN, US

International Classification:

A61M029/00

US Classification:

606108000

Abstract:

The present invention relates generally to devices and methods for treating occluded or stenoic blood vessels. More particularly, the present invention relates to devices and methods for delivering or retrieving an embolic protection device from the vasculature of a patient. In an embodiment, a catheter for retrieval or delivery of an embolic protection device comprises an inner shaft and an outer sheath. In addition, a method for retrieving and delivering an embolic protection device is disclosed.

US Patent:

20080027420, Jan 31, 2008

Filed:

Jul 25, 2007

Appl. No.:

11/828095

Inventors:

Ling Wang - Maple Grove MN, US
Jia Hua Xiao - Maple Grove MN, US
Douglas A. Devens - Highland Park IL, US
David W. Vancelette - San Diego CA, US

Assignee:

AMS RESEARCH CORPORATION - Minnetonka MN

International Classification:

A61B 18/02

US Classification:

606 21

Abstract:

Improved imaging and monitoring systems for use with a closed loop cryosurgical system. As described herein, various systems can be used alone or in conjunction with one another to plan and/or monitor cryosurgical procedures in order to improve cryosurgical outcomes. These systems can include computer assisted planning systems, non-ultrasound based imaging systems and temperature monitoring systems utilized individually or in combination. Through the use of these systems, the precision by which cryosurgical procedures are performed are enhanced.