Paul D Turner

US Patent:

6957108, Oct 18, 2005

Filed:

Jun 2, 2003

Appl. No.:

10/453018

Inventors:

Paul F. Turner - Bountiful UT, US
Mark Hagmann - North Salt Lake UT, US
Thomas Youd - Salt Lake City UT, US

Assignee:

BSD Medical Corporation - Salt Lake City UT

International Classification:

A61F002/00

US Classification:

607101, 600 2

Abstract:

A microwave hyperthermia apparatus that can be inserted into the body which includes a hollow central tube for the insertion of radioactive therapy sources. The use of a coaxial transmission line impedance transformation along the insertable portion of the coaxial cable enables a reduction in the characteristic impedance by increasing the outer diameter of the inner coaxial conductor so that the center conductor can be a metal tube. If the ratio of the outer coaxial conductor diameter vs. the inner coaxial conductor is decreased, the characteristic impedance of the transmission line is lowered. This enables the inner conductor diameter to increase sufficiently to make the central hollow opening large enough to receive standard radioactive sources therein. This provides for a good impedance match that improves microwave energy efficiency while at the same time permitting a large hollow center opening. The combination of the microwave antenna device and brachytherapy sources provides for enhanced effectiveness when the two treatments are delivered simultaneously or in close time proximity to each other.

US Patent:

7565207, Jul 21, 2009

Filed:

Nov 22, 2005

Appl. No.:

11/286104

Inventors:

Paul F. Turner - Bountiful UT, US
Mark Hagmann - Salt Lake City UT, US

Assignee:

BSD Medical Corporation - Salt Lake City UT

International Classification:

A61N 5/00

US Classification:

607100, 607101, 607156

Abstract:

A system and corresponding method for creating hyperthermia in a selected position in target tissue using the application of electromagnetic radiation (EMR) in the HF, VHF and UHF microwave region and phased array steering includes an array of applicators and a single channel EMR radiation energy source coupled to at least one of the applicators of the array. A variable reflective termination device is coupled to at least one of the applicators so that a user can vary the energy radiated from the coupled applicator to steer the heating region in the target to a desired position in the target. Several different applicator arrays are suitable for use with the system, and comprise generally cylindrical annuli which emit radiation toward a central axis. Parasitic applicators with variable reflective termination devices can be used in the applicator array along with at least one applicator directly coupled to the energy source.

US Patent:

7769468, Aug 3, 2010

Filed:

Mar 3, 2006

Appl. No.:

11/367076

Inventors:

Paul F. Turner - Bountiful UT, US
Mark Hagmann - Salt Lake City UT, US
Thomas L. Youd - Salt Lake City UT, US
Jason Lynn Elsworth - Salt Lake City UT, US

Assignee:

BSD Medical Corporation - Salt Lake City UT

International Classification:

A61B 18/18
A61F 7/08

US Classification:

607100, 607101, 607102

Abstract:

An applicator and method for application of electromagnetic energy to an area of tissue is described. The applicator includes a visually-transparent, high-dielectric interfacing assembly which has a conformable tissue-engaging surface and an opposed antenna-engaging surface. At least one balanced, circularly-polarized antenna is disposed in a plane substantially parallel and adjacent to the antenna-engaging surface. The interfacing assembly and at least one antenna are substantially transparent to enable visual viewing of the area of tissue. This enables monitoring of the tissue for adverse treatment effects while electromagnetic energy is being applied to the at least one antenna and radiated into the tissue.

US Patent:

8032743, Oct 4, 2011

Filed:

Aug 31, 2001

Appl. No.:

09/943086

Inventors:

Alan Asay - Salt Lake City UT, US
Paul A. Turner - Sandy UT, US
Frank W. Sudia - Newton Centre MA, US
Richard Ankney - Chantilly VA, US

Assignee:

Certco, LLC - New York NY

International Classification:

H04L 29/06

US Classification:

713156, 713169, 380277, 705 67, 705 71, 705 76

Abstract:

A method of managing reliance in an electronic transaction system includes a certification authority issuing a primary certificate to a subscriber and forwarding to a reliance server, information about the issued primary certificate. The reliance server maintains the forwarded information about issued primary certificate. The subscriber forms a transaction and then provides the transaction to a relying party. The transaction includes the primary certificate or a reference thereto. The relying party sends to the reliance server a request for assurance based on the transaction received from the subscriber. The reliance server determines whether to provide the requested assurance based on the information about the issued primary certificate and on the requested assurance. Based on the determining, the reliance server issues to the relying party a secondary certificate providing the assurance to the relying party.

US Patent:

8170643, May 1, 2012

Filed:

May 23, 2008

Appl. No.:

12/154808

Inventors:

Paul F. Turner - Bountiful UT, US
Mark Hagmann - Salt Lake City UT, US

Assignee:

BSD Medical Corporation - Salt Lake City UT

International Classification:

A61B 5/05
A61N 5/00

US Classification:

600411, 607101, 607156

Abstract:

A system and corresponding method for irradiating a target with electromagnetic radiation to produce a heated region. The system comprises a coupling device operable to couple electromagnetic radiation from a magnetic resonance imaging system. A plurality of energy radiator applicators are connected to the coupling device to receive electromagnetic radiation energy from the coupling device. Each of the radiator applicators is operable to emit a radio frequency heating signal using the electromagnetic radiation energy from the coupling device. A bolus filled with a dielectric fluid is positioned within the inner area of the MRI system. The bolus is operable to receive the radio frequency heating signals from the plurality of energy radiator applicators and direct the radio frequency heating signals into a section of the body to produce a heated region within the body.

US Patent:

8306628, Nov 6, 2012

Filed:

Apr 6, 2010

Appl. No.:

12/755185

Inventors:

Paul F. Turner - Bountiful UT, US
Mark Hagmann - West Valley UT, US
Thomas L. Youd - Salt Lake City UT, US

Assignee:

BDS Medical Corporation - West Valley UT

International Classification:

A61F 2/00

US Classification:

607101, 607100, 607102

Abstract:

A hyperthermia treatment system for heating a selected region within a target body that includes a power source and a plurality of electromagnetic applicators that are in electrical communication with the power source and arranged in a surrounding array around a focal region to concentrate their combined radiation output onto the focal region. The treatment system also includes a support mechanism that is adapted to support a target body within the surrounding array of applicators, and a positioning mechanism adapted to move the support mechanism and align the selected region within the target body with the focal region. Furthermore, the positioning mechanism is adapted to compensate for movement of the focal region in response to an interaction between the combined radiation output and the target body.

US Patent:

8414570, Apr 9, 2013

Filed:

Nov 17, 2009

Appl. No.:

12/620002

Inventors:

Paul F. Turner - Bountiful UT, US
Thomas L. Youd - Salt Lake City UT, US

Assignee:

BSD Medical Corporation - Salt Lake City UT

International Classification:

A61B 18/14

US Classification:

606 33, 607101

Abstract:

A microwave applicator for insertion into living body tissue for use in microwave coagulation and ablation treatments includes a microwave transmission line extending between an attachment end of the applicator and an antenna toward an insertion end of the applicator with an outer conductive sleeve forming an enclosed cooling fluid space around the transmission line. Circulation of cooling fluid is guided in the cooling fluid space by a guide sleeve. A temperature sensor senses the approximate temperature of cooling fluid to indicate cooling fluid is circulating. A multiplexing and power splitting circuit provides outputs tuned for one or for more than one applicator to be attached and detects the number of applicators and correct connection. A cadence sound generator can be used in conjunction with depth markings on the applicator to provide substantially constant withdrawal of the applicator from the treated tissue after treatment to provide track ablation.

US Patent:

8423152, Apr 16, 2013

Filed:

May 14, 2008

Appl. No.:

12/152513

Inventors:

Paul F. Turner - Bountiful UT, US
Mark Hagmann - Salt Lake City UT, US

Assignee:

BSD Medical Corporation - Salt Lake City UT

International Classification:

A61N 5/00

US Classification:

607101

Abstract:

An apparatus and method for providing hyperthermia treatments to a protruding body portion having fatty tissue surrounding a deposit in the protruding body portion is disclosed. The apparatus includes a cavity for receiving the protruding body portion. A radio frequency antenna array is used to direct a radio frequency signal at a selected frequency into the protruding body portion such as a breast so that the radio frequency signal will have a selected wavelength in the breast to create a circularly polarized radio frequency electromagnetic field to selectively heat the deposit to a temperature greater than the surrounding fatty tissue through resonant heating within the deposit when a diameter of the deposit is within a range of about 0. 5 times to 0. 16 times the wavelength of the radio frequency signal within the fatty mammary tissue.