Clark Clayton Davis
Engineers in Salt Lake City, UT

8235988, Aug 7, 2012

Jan 23, 2009

12/359223

Clark C. Davis - Holladay UT, US
Richard J. Linder - Sandy UT, US
Scott D. Miles - Sandy UT, US
Daryl R. Edmiston - Draper UT, US

Coherex Medical, Inc. - Salt Lake City UT

A61B 18/18

606 41

Embodiments of the present invention are directed to ablation catheter systems configured, for example, to ablate tissue adjacent an ostium of the pulmonary vein in a left atria of a heart. In one embodiment, an ablation catheter system includes a handle including an actuator and a catheter coupled to the handle defining a lumen extending through a length of the catheter, the catheter including a tip portion at a distal end thereof. The ablation catheter system may also include an electrode coupled to the handle with lines extending through the lumen of the catheter, the electrode being configured to be constrained within the tip portion of the catheter and configured to be deployed from the tip portion and self expand to an expanded configuration. With this arrangement, the electrode is configured to self expand to a conical configuration with a tip portion configured to be disposed within the pulmonary vein.

5690120, Nov 25, 1997

May 24, 1996

8/653199

Stephen C. Jacobsen - salt Lake City UT
Clark Davis - salt Lake City UT
John Lippert - salt Lake City UT

Sarcos, Inc. - Salt Lake City UT

A61B 500

128772

A hybrid catheter guide wire includes an elongate solid body having a tapered distal end over which is disposed a tubular section-about which a catheter may be threaded for guidance to a target location in a vasculature passageway of a body. Cuts are formed either by saw-cutting, laser cutting or etching at spaced-apart locations along at least a portion of the tubular section to increase its lateral flexibility, while maintaining its rotational torquability, and to control the direction and degree of flexure.

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.

6302870, Oct 16, 2001

Apr 29, 1999

9/302340

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

Precision Vascular Systems, Inc. - Salt Lake City UT

A61M 532

604272

Apparatus for injecting fluids into the walls of blood vessels, body cavities, and the like, includes a plurality of laterally flexible needles disposed in a catheter for exit either out the distal end of the catheter or the catheter or through corresponding side openings in the catheter. In the latter case, the terminal ends of the needles would be curved laterally, with each terminal end being positioned in a respective side opening so that when the needles were moved forwardly in the catheter, the terminal ends of the needles would move laterally out the respective openings to pierce a vessel or cavity wall adjacent to which the catheter was positioned. Hilts positioned near the terminal ends of the needles serve to control the depth of penetration of the needles.

5426336, Jun 20, 1995

Jul 7, 1993

8/088178

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

Sarcos, Inc. - Salt Lake City UT

H02K 706, H02K 2100

310 82

An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in the stator along the closed surface pathway, circuitry for successively energizing the electromagnetic elements to cause them to attract and/or repel the armature so that it rolls along the closed surface pathway, and a coupler mechanism for coupling the armature to the utilization mechanism so that as the armature is caused to roll, the utilization mechanism is powered by the operation of the motor.

2011009, Apr 21, 2011

Sep 17, 2010

12/885287

Brian K. Whisenant - Salt Lake City UT, US
Clark C. Davis - Holladay UT, US
Daryl R. Edmiston - Draper UT, US

COHEREX MEDICAL, INC. - Salt Lake City UT

A61N 1/05

607 50

A medical device for use in delivering RF energy to a tissue opening is disclosed. In one embodiment, the medical device comprises a compliant electrode. The compliant electrode can include a shape memory material, such as NITINOL, to facilitate the electrode having at least one relaxed orientation. The electrode can be deployed from a delivery shaft inside the left atrium, for example, of a heart through the delivery shaft. The electrode can be configured to substantially conform to the tissue proximate the tissue opening. After energy is applied to the tissue between the left and right electrodes, the left electrode can be removed from the left atrium by being received back into the delivery shaft and the delivery shaft thereafter removed from the opening.

5941533, Aug 24, 1999

Aug 16, 1996

8/703937

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

Sarcos, Inc. - Salt Lake City UT

F16J 1532

277551

A volumetric pump for administering intravenous fluids to a patient comprises a housing having an elongate cavity therein with an open and a closed end. A resilient sheet of material having a centrally-located aperture covers the open end, and a pump shaft is slidably disposed through the aperture to form a sphincter seal therebetween. An inlet conduit leading from a fluid source (an IV bag) passes through the housing into the cavity near the open end thereof, and an outlet conduit leading to a fluid sink (the patient) passes through the housing from the cavity near the closed end thereof. The shaft is driven back and forth in reciprocating motion inwardly and outwardly of the cavity to produce, respectively, a positive pressure forcing fluid out of the outlet conduit to the fluid sink, and a negative pressure forcing fluid from the fluid source through the inlet conduit.

5556263, Sep 17, 1996

Jun 6, 1995

8/469473

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

Sarcos Group - Salt Lake City UT

F04B 700

417490

A volumetric pump and fluid control valve system for controlling the flow of fluid which comprises a housing containing an interior cavity, an elongated valve shaft is disposed inside the cavity, and an elongate drive shaft of smaller diameter than the valve shaft connected to one end of the valve shaft. The drive shaft passes through a passage formed in the housing to extend from the cavity to the exterior. A resilient sheet of material having an aperture is disposed in the housing on the exterior side of the passage and the drive shaft passes through the aperture to form a sphincter seal. The drive shaft can be used to move the valve shaft back and forth in a reciprocating motion producing positive and negative pressures causing fluid to flow or merely to stabilize the valve shaft in position. The valve shaft includes two flanges which are spaced apart from one another. The flanges extend at least partially around the circumference of the valve shaft.

5656879, Aug 12, 1997

Jun 6, 1995

8/466073

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

Sarcos, Inc. - Salt Lake City UT

H02K 706, F04B 1100

310 82

An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in the stator along the closed surface pathway, circuitry for successively energizing the electromagnetic elements to cause them to attract and/or repel the armature so that it rolls along the closed surface pathway, and a coupler mechanism for coupling the armature to the utilization mechanism so that as the armature is caused to roll, the utilization mechanism is powered by the operation of the motor.