John M Sorensen

Author:

John A. Sorensen

ISBN #:

0780356101

Author:

John A. Sorensen

ISBN #:

0867153059

Author:

John A. Sorensen

ISBN #:

0867153229

Author:

John A. Sorensen

ISBN #:

0867153490

Author:

John A. Sorensen

ISBN #:

0867153784

Author:

John A. Sorensen

ISBN #:

0867154233

Author:

John Sorensen

ISBN #:

0887063322

Author:

John Sorensen

ISBN #:

0887063330

US Patent:

6489132, Dec 3, 2002

Filed:

Sep 2, 1999

Appl. No.:

09/388974

Inventors:

Virginia C. Gordon - Huntington Beach CA
John T. Sorensen - Costa Mesa CA
Soheila Mirhashemi - Laguna Niguel CA
Michael Mittelstein - Laguna Niguel CA
John F. Elias - Buena Park CA

Assignee:

Safety Associates, Inc. - Tustin CA

International Classification:

G01N 3353

US Classification:

435 792, 435 71, 435179, 435180, 436175, 436177, 436178, 436518, 436527, 436530, 436824, 436825, 422 56, 422 58, 422 60, 422 681, 422 82, 422102, 422147, 422188, 422190, 422211, 422213, 422216, 422236, 422239, 422240, 422101, 210200, 210201, 210203, 210238, 210252, 210253, 210255, 210263, 210290, 210295, 210301, 210322, 210314, 2103231, 210348, 21050029, 210600, 210634, 210649, 210767, 210800, 210806, 210908

Abstract:

Methods and apparatus for qualitatively or quantitatively determining one or more analytes in matrices such as foods, biological fluids, etc. An embodiment for determination of a single analyte comprises a sample receiving vessel, a first membrane and a reagent-containing well. The prepared sample passes through the first membrane whereby extraneous matter is removed, and a filtrate enters the reagent-containing well to provide a filtrate-reagent admixture from which the analyte may be determined. An embodiment for determination for multiple analytes includes one or more additional membranes in series with the first membrane, each such additional membrane being operative to capture one or more analytes. Each of the additional analytes may then be eluted from the membrane upon which it has been captured, into a separate reagent-containing well to provide eluant-reagent admixture from which each desired analyte may be determined. Formulations for preparation additives are also included.

US Patent:

6506176, Jan 14, 2003

Filed:

Feb 16, 2000

Appl. No.:

09/505098

Inventors:

Michael Mittelstein - Laguna Niguel CA
John T. Sorensen - Aliso Viejo CA
Soheila Mirhashemi - Laguna Niguel CA
James B. Gerg - Lake Forest CA
John I. Muri - Aliso Viejo CA
Roger F. Etherington - Newport Beach CA
John A. Ripley - Newport Beach CA

Assignee:

Bausch Lomb Incorporated - Rochester NY

International Classification:

A61F 900

US Classification:

604 22, 604107, 604170, 604180

Abstract:

A system for removing the lens from an eye of a mammal, including a lens-removal device having a probe for penetrating the lens capsule. The probe includes a sheath that shields a rotating impeller at all times, with the impeller being pneumatically actuated to advance to a lens removal position within the sheath. The impeller is pneumatically rotated using a turbine mechanism within a handle for the probe. Irrigation and aspiration are provided to facilitate removal of the lens tissue. The turbine is driven with pulsed air to prevent stiction. A purge/protection cap helps remove air bubbles from the system prior to use and protects the delicate impeller during transport. An operating system is also provided with a foot pedal actuator.

US Patent:

6655934, Dec 2, 2003

Filed:

Mar 20, 2002

Appl. No.:

10/102608

Inventors:

Michael Mittelstein - Laguna Niguel CA
John T. Sorensen - Ladera Ranch CA
Soheila Mirhashemi - Laguna Niguel CA

Assignee:

Innovent, L.L.C. - San Juan Capistrano CA

International Classification:

F04B 4308

US Classification:

4174779, 417474, 4174771, 4174773, 417360

Abstract:

Inverted peristaltic pumps and related apparatus/methods wherein one or more compressible pump tubes are formed or mounted on a core member and one or more tube compressing members move about the core member so as to compress the tube(s) and propel a fluid through the tube(s). The core member may be removable and the pump tube(s) may be pre-mounted on the core member to form a disposable or reusable tubing cartridge. The core member or tubing cartridge may be easily inserted into and removed from the pump. In some embodiments troughs or grooves may be formed on the core member and the tube(s) may be disposed in such troughs or grooves.

US Patent:

6820490, Nov 23, 2004

Filed:

Oct 16, 2002

Appl. No.:

10/273379

Inventors:

Michael Mittelstein - Laguna Niguel CA
John T. Sorensen - Ladera Ranch CA
James B. Gerg - Lake Forest CA
Soheila Mirhashemi - Laguna Niguel CA

Assignee:

Neomedix Corporation - San Juan Capistrano CA

International Classification:

G01L 708

US Classification:

73715, 73700

Abstract:

Methods and systems for measuring the pressure of a fluid. A flexible barrier separates the fluid from the pressure receiving surface of a pressure sensing device. The pressure of the fluid is transferred through the flexible barrier to the pressure receiving surface. The flexible barrier may be in abutting juxtaposition with or may be spaced apart from the pressure sensing surface. In either case, the flexible barrier is coupled or held in defined relationship to the pressure sensing surface such that the pressure receiving surface will receive the substantially actual pressure of the fluid even when the pressure of the fluid is less than the ambient atmospheric pressure. Coupling of the flexible barrier to the pressure receiving surface may be achieved by any suitable means, including adhesive or the application of a full or partial vacuum between the flexible barrier and the pressure receiving surface.

US Patent:

6852289, Feb 8, 2005

Filed:

Mar 26, 2001

Appl. No.:

09/817446

Inventors:

Virginia C. Gordon - Huntington Beach CA, US
Barbara J. Peasley - Brea CA, US
John F. Elias - Buena Park CA, US
John T. Sorensen - Costa Mesa CA, US
Michael Mittelstein - Laguna Niguel CA, US
Soheila Mirhashemi - Laguna Niguel CA, US

Assignee:

Saftest, Inc. - Tempe AZ

International Classification:

B01L011/00
B01D024/00
C12M003/00

US Classification:

422101, 4352871, 4352884, 4352885, 210335

Abstract:

Methods and apparatus for qualitatively or quantitatively determining one or more analytes in matrices such as foods, biological fluids, etc. An embodiment for determination of a single analyte comprises a sample receiving vessel, a first membrane and a reagent-containing well. The prepared sample passes through the first membrane whereby extraneous matter is removed, and a filtrate enters the reagent-containing well to provide a filtrate-reagent admixture from which the analyte may be determined. An embodiment for determination for multiple analytes includes one or more additional membranes in series with the first membrane, each such additional membrane being operative to capture one or more analytes. Each of the additional analytes may then be eluted from the membrane upon which it has been captured, into a separate reagent-containing well to provide eluant-reagent admixture from which each desired analyte may be determined. Formulations for preparation additives are also included.

US Patent:

7445436, Nov 4, 2008

Filed:

Sep 29, 2003

Appl. No.:

10/673296

Inventors:

Michael Mittelstein - Laguna Niguel CA, US
John T. Sorensen - Ladera Ranch CA, US
Soheila Mirhashemi - Launa Niguel CA, US
James Gerg - Lake Forest CA, US
Robert Schauer - Westminster CA, US

Assignee:

Bausch & Lomb Incorporated - Rochester NY

International Classification:

F04B 43/08
F04B 43/12

US Classification:

4174773, 417476, 604153

Abstract:

A peristaltic pump for use in ophthalmic surgery includes a housing , a pump head having plurality of rollers held within the housing , and a backing plate attached to the housing. The pump head moves relative to the housing and backing plate.

US Patent:

7842034, Nov 30, 2010

Filed:

Jun 10, 2004

Appl. No.:

10/560265

Inventors:

Michael Mittelstein - Laguna Niguel CA, US
John T. Sorensen - Lake Elsinore CA, US
Soheila Mirhashemi - Laguna Niguel CA, US
James B. Gerg - Lake Forest CA, US

Assignee:

Neomedix Corporation - Tustin CA

International Classification:

A61B 18/14

US Classification:

606 48, 606 41, 606 50

Abstract:

Methods and devices for cutting or coagulating. A device comprises a) an elongate member having a distal end, b) at least one foot member extending from the distal end of the elongate member, said foot member having a upper surface and a lower surface, c) an electrically and thermally insulating covering formed on at least the lower surface of the foot member and d) at least one electrode on the upper surface of the foot member. In operation, the at least one electrode is energized so as to cause cutting or coagulation of tissue located above the upper surface(s) of the foot member(s) while not causing substantial damage to tissue located below the lower surface(s) of the foot member(s).

US Patent:

7959641, Jun 14, 2011

Filed:

Jun 10, 2004

Appl. No.:

10/560267

Inventors:

John T. Sorensen - Lake Elsinore CA, US
Michael Mittelstein - Laguna Niguel CA, US
Soheila Mirhashemi - Laguna Niguel CA, US

Assignee:

Neomedix Corporation - Tustin CA

International Classification:

A61B 17/32

US Classification:

606170

Abstract:

Methods and devices for cutting strips of tissue from masses of tissue inside or outside of the bodies of human or animal subjects. The device generally comprises a) an elongate cutting tube that has a distal end and a lumen that opens through an opening in the distal end and b) first and second cutting edges formed on generally opposite edges of the distal end of the cutting tube and separated by a distance D. The device is advanced through tissue to cut a strip of tissue of approximate width W. Width W is approximately equal to distance D.