DAVID STEPHEN WELLS
Pilots at Pheasant Way, Salt Lake City, UT

6428489, Aug 6, 2002

Dec 22, 1999

09/470607

Stephen C. Jacobsen - Salt Lake City UT
Clark Davis - Salt Lake City UT
David Wells - Salt Lake City UT

Precision Vascular Systems, Inc. - Salt Lake City UT

A61B 500

600585, 60416413

A catheter guidewire includes an elongate solid body about which a catheter may be threaded for guidance to a target location in a vasculature passageway of a body. The elongate body includes a proximal end and a distal end, with the distal end being curved. Cuts are formed either by saw-cutting, laser cutting or etching at spaced-apart locations along the length of the body to increase its lateral flexibility. Integral beams are also formed within the body to maintain its torsional strength. The relative location and size of cuts and beams may be selectively adjusted so as to control the direction and degree of flexure, and the change in torsional stiffness relative to flexibility.

6531861, Mar 11, 2003

Nov 7, 1996

08/744381

Stephen L. Jacobsen - Salt Lake City UT
David L. Wells - Salt Lake City UT

Sarcos LC - Salt Lake City UT

G01R 2922

324106

A sensor system for sensing movement comprises a rod anchored at one end to a base and plurality of strain gauges circumferentially disposed about the rod. The free end of the rod may be subject to forces in various directions. The strain gauges produce signals whose magnitudes are an indication of the degree of strain occurring at the location of the strain gauges. The use of three or more strain gauges spaced circumferentially about the rod provide both direction and degree of bend of the rod.

6896682, May 24, 2005

Nov 14, 2000

09/712408

Scott B. McClellan - Heber City UT, US
Patricia M. Moulis - Salt Lake City UT, US
Annette M. L. McClellan - Heber City UT, US
Thomas G. Taylor - Salt Lake City UT, US
David L. Wells - Salt Lake City UT, US

Biomedical Engineering Solutions, Inc. - Salt Lake City UT

A61B017/10

606140, 606141, 606144

A surgical device for performing internal ligation of a fallopian tube or other tubular anatomical structure, by application of one or more ligating bands to a folded portion of the wall of the tubular structure. Also the invention includes a method of using the device. The inventive method and device may be used for sterilization to prevent undesired pregnancies, or for other medical applications. The device includes an elongated tubular element that is inserted into the fallopian tube; a grasper that extends out of the tubular element, grasps the interior of the fallopian tube and retracts into the tubular element drawing in a folded bundle of the fallopian tube tissue; and a pusher balloon for pushing a ligating band from the tip of the tubular element onto the tissue bundle.

6066361, May 23, 2000

Jul 29, 1999

9/363543

Stephen C. Jacobsen - Salt Lake City UT
Michael R. McNeely - Salt Lake City UT
David L. Wells - Salt Lake City UT

Sarcos L.C. - Salt Lake City UT

B05D 506

4271632

A method of coating a surface of a filament. In particular, the invention rotates a member (13) about a first axis (54), which will rotate a tubular member (16), which is rotatably coupled to the rotating member at an angle to the first axis, through a plane and about a longitudinal axis (56) of the tubular member that is co-planer to the plane. This is done to assist in the depositing of a uniform material onto the filament that extends through the tubular member and through a deposition area (40). It is important for the method to maintain the deposition area at an intersection of the first axis, longitudinal axis and plane, while the filament is being rotated in step. The method provides for adjusting the deposition area to expose a different length of the filament to the deposition of material thereon. Additionally, the method further comprises the steps of: un-winding a length of the filament that is in a feed basket coupled to one end of the tubular member; feeding the filament length through the tubular member; and collecting the filament length in a receiving basket that is coupled to another end of the tubular member. It is noted that there is a step of rotating a traction wheel, which is fixedly coupled about the tubular member at an end opposite to where the tubular member is rotatably coupled to the rotating member, about the longitudinal axis to cause the tubular member to rotate through the plane and about the co-planer longitudinal axis.

5106455, Apr 21, 1992

Jan 28, 1991

7/647659

Stephen C. Jacobsen - Salt Lake City UT
David L. Wells - Salt Lake City UT
Clark Davis - Holladay UT
John E. Wood - Salt Lake City UT

Sarcos Group - Salt Lake City UT

B44C 122, C23F 102, C03C 1500, B05D 306

1566591

Apparatus for non-planar treatment of a workpiece utilizing exposure beam lithography includes a vacuum chamber, an exposure beam generator such as an electron beam generator disposed in the chamber for directing a beam towards a work location, a chuck disposed in the chamber for holding and positioning the workpiece at the work location, a rotary motorized stage disposed in the chamber and responsive to first control signals for selectively rotating the chuck, and thus the workpiece, to thereby expose different areas of the workpiece to the beam, and a linear motorized stage disposed in the chamber on which the rotary stage is mounted, said linear motor being responsive to second control signals for selectively moving the rotary stage and thus the chuck and workpiece in a linear direction which is generally parallel with the axis of rotation of the rotary stage. The workpiece is thus exposed over additional areas by operation of the linear stage. A controller supplies first and second control signals to the rotary stage and linear stage respectively to selectively effect the operation thereof.

5933002, Aug 3, 1999

Nov 7, 1996

8/744368

Stephen L. Jacobsen - Salt Lake City UT
David L. Wells - Salt Lake City UT

Sarcos L.C. - Salt Lake City UT

H02M 700

324 99R

Controlled bending movement of a flexible elongate rod or filament in response to a bend signal indicative of a desired amount of bending is effected by a strip of shape-changing material disposed on a first side of an elongate rod element, the shape changing material changing shape in response to an actuation signal, thereby causing the filament element to bend, and a sensor including a strain gauge disposed on the rod element on a second side opposite the first side, said sensor sensing the amount of bend in the rod element from strain indicated, and a feedback control comparing the amount of bend of the filament sensed to a desired amount of bend defined by said bend signal and altering the actuation signal as required to make the amount of bend sensed the same as the amount of bend desired.

5747692, May 5, 1998

Nov 7, 1996

8/745000

Stephen C. Jacobsen - Salt Lake City UT
David L. Wells - Salt Lake City UT

Sarcos Group - Salt Lake City UT

G01P 1508

7351425

A system for determining acceleration by measuring the movement of a rod within a housing. The rod is an elongate flexible rod disposed in the housing with one end being attached to the housing and the other end being free to move when the housing is accelerated. Movement of the rod is measured with field detectors disposed on an inside wall of the housing. The field detectors are used for determining the direction and degree of movement of the rod when the housing is accelerated.

5744947, Apr 28, 1998

Nov 7, 1996

8/744380

Stephen L. Jacobsen - Salt Lake City UT
David L. Wells - Salt Lake City UT

Sarcos Group - Salt Lake City UT

G01R 522, H02M 700

324106

A movement actuator includes an elongate filament made of a flexible material, and a strip of shape memory alloy disposed on the surface of one side of the filament. The shape memory alloy is responsive to actuation signals, heat or electrical signals, for changing its shape and when its shape changes, it causes the filament to move, i. e. , bend, to accommodate the change in shape of the alloy. Also included is a signal supply device for selectively applying heat signals or electrical current to the strip of shape memory alloy to cause the alloy to change its shape and cause the filament to bend. Other patterns for the shape memory alloy could be disposed on the filament to cause other kinds of movements. For example, a helical pattern of the shape memory alloy about the filament would cause the filament to twist when the helical pattern were caused to shorten or lengthen.

5769389, Jun 23, 1998

Nov 7, 1996

8/745003

Stephen C. Jacobsen - Salt Lake City UT
David L. Wells - Salt Lake City UT

Sarcos Group - Salt Lake City UT

F16K 1300

25112906

An apparatus for selectively controlling a flow of fluid includes a valve body, preferable comprised of a flexible tube having an inlet and an outlet. An actuable element, such as a shape memory alloy, is associated with the valve body. The shape memory alloy is responsive to actuation signals, heat or electrical signals, for changing its shape. When its shape changes, it causes a corresponding change in shape of the valve body thereby change a flow of fluid through the valve body.

2007018, Aug 9, 2007

Dec 1, 2006

11/606896

Nathan Teuscher - Lincoln NE, US
Lidia Demchyshyn - Toronto, CA
David Wells - Salt Lake City UT, US

NPS ALLELIX CORP. - Toronto CA

G01N 33/00

436089000

The invention disclosed herein demonstrates that that the adaptive process in the intestine can be tracked using plasma citrulline. It further demonstrates that plasma citrulline is of clinical utility as a biomarker for improvements in intestinal function.