Reza Zadno

US Patent:

7556632, Jul 7, 2009

Filed:

Oct 12, 2005

Appl. No.:

11/249910

Inventors:

Reza Zadno - Fremont CA, US

International Classification:

A61B 17/10

US Classification:

606142, 606213

Abstract:

A tissue-stapling device for repairing tissue is provided. The device has two guiding elements movable with respect to each other. Self-deployable wings are located on the outside of the inner guiding element, which are used for stabilizing tissue parts with respect to the device. A self-deployable clip with two or more edges can be advanced through the inner guiding element and is capable of penetrating the tissue parts. The self-deployable clip is sized so that it can be positioned against the tissue parts. The device further includes a clip penetrating mechanism that is capable of moving through the inner guiding element and is capable of penetrating the clip through the tissue parts and therewith securing the tissue parts clipped or stapled together.

US Patent:

8377123, Feb 19, 2013

Filed:

Nov 10, 2004

Appl. No.:

10/985854

Inventors:

Scott Evans - Santa Ana CA, US
Reza Zadno - Fremont CA, US
Luis Vargas - Irvine CA, US

Assignee:

Visiogen, Inc. - Santa Ana CA

International Classification:

A61F 2/16

US Classification:

623 637, 623 639

Abstract:

A method is provided for implanting an accommodating intraocular lens system in a capsular bag of an eye. The method includes providing the accommodating intraocular lens having an anterior viewing element and a posterior viewing element. The anterior viewing element has a width in a range between approximately 4. 5 millimeters and approximately 6. 5 millimeters. The method further includes forming an opening in an anterior portion of the capsular bag. The opening has a minimum width not less than approximately 4 millimeters and has a maximum width not greater than approximately 6. 0 millimeters. The method further includes placing the accommodating intraocular lens system within the capsular bag. The capsular bag overlaps at least a portion of the anterior viewing element and defines an overlap region with a width in a range between approximately 0. 1 millimeters and approximately 0.

US Patent:

20060064174, Mar 23, 2006

Filed:

Sep 22, 2004

Appl. No.:

10/948731

Inventors:

Reza Zadno - Fremont CA, US

International Classification:

A61F 2/04
A61F 2/06
A61F 2/24

US Classification:

623023680, 623001240, 623002180

Abstract:

An implantable valve composed of a frame structure monolithically formed and covered with a biocompatible coating or soft structure. The implantable valve can have various shapes, openings, anchoring sites, attachment sites and is flexible, expendable, and easy to attach to body tissue. In some embodiments, the implantable valve is made by first determining a two or three dimensional configuration of the frame structure, which has an open end and a tapered end. The configuration may be scaled to obtain a desired size, e.g., length and diameter. One or more frame structure may be cut, stamped, etched, or machined from a single material, which could be metal or plastic with various thickness profiles and may have superelasticity and/or shape memory. The biocompatible coating selectively seals the valve to control/prevent fluid passage. To enhance bonding, the frame structure surface is treated with etching, polishing, sand blasting, plating, nanotechnology surface modification, etc.

US Patent:

20130150961, Jun 13, 2013

Filed:

Feb 6, 2013

Appl. No.:

13/760782

Inventors:

Reza Zadno - Fremont CA, US
Luis Vargas - Irvine CA, US

Assignee:

VISIOGEN, INC. - Irvine CA

International Classification:

A61F 2/16

US Classification:

623 637

Abstract:

A method is provided for implanting an accommodating intraocular lens system in a capsular bag of an eye. The method includes providing the accommodating intraocular lens having an anterior viewing element and a posterior viewing element. The anterior viewing element has a width in a range between approximately 4.5 millimeters and approximately 6.5 millimeters. The method further includes forming an opening in an anterior portion of the capsular bag. The opening has a minimum width not less than approximately 4 millimeters and has a maximum width not greater than approximately 6.0 millimeters. The method further includes placing the accommodating intraocular lens system within the capsular bag. The capsular bag overlaps at least a portion of the anterior viewing element and defines an overlap region with a width in a range between approximately 0.1 millimeters and approximately 0.75 millimeters.

US Patent:

59046902, May 18, 1999

Filed:

Jun 7, 1995

Appl. No.:

8/483785

Inventors:

Lee M. Middleman - Portola Valley CA
Walter R. Pyka - Redwood City CA
Michael Buhler - Madeira Beach FL
Philippe Poncet - Fremont CA
Karl Van Dyk - Fremont CA
James E. Jervis - Atherton CA
Reza Zadno - Newark CA

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A01B17/04

US Classification:

606113

Abstract:

The present invention provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and actuating means for extending the metallic member(s) from the housing to manipulate matter within the said space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature. Preferably the invention provides such a device or apparatus which is of elongate form for surgical manipulation of matter within a living body, and which has the manipulator means at its distal end with the metallic member(s) having pseudoelasticity at the temperature to be encountered within that body, and wherein the actuating means is operable from the proximal end of the device.

US Patent:

57498792, May 12, 1998

Filed:

Feb 24, 1993

Appl. No.:

8/022259

Inventors:

Lee M. Middleman - Portola Valley CA
Walter R. Pyka - Redwood City CA
Michael Buhler - Madeira Beach FL
Philippe Poncet - Fremont CA
Karl van Dyk - Fremont CA
James E. Jervis - Atherton CA
Reza Zadno - Newark CA

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B 1712

US Classification:

606139

Abstract:

The present invention provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and actuating means for extending the metallic member(s) from the housing to manipulate matter within the said space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature. Preferably the invention provides such a device or apparatus which is of elongate form for surgical manipulation of matter within a living body, and which has the manipulator means at its distal end with the metallic member(s) having pseudoelasticity at the temperature to be encountered within that body, and wherein the actuating means is operable from the proximal end of the device.

US Patent:

58206280, Oct 13, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/474200

Inventors:

Lee M. Middleman - Portola Valley CA
Walter R. Pyka - Redwood City CA
Michael Buhler - Madeira Beach CA
Philippe Poncet - Fremont CA
Karl Van Dyk - Fremont CA
James E. Jervis - Atherton CA
Reza Zadno - Newark CA

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B 1704

US Classification:

606147

Abstract:

A device or apparatus for manipulating matter in a confined or inaccessible space, comprises a manipulator at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and an actuator for extending the metallic member(s) from the housing to manipulate matter within the space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the temperature. Preferably the device or apparatus is of elongate form for surgical manipulation of matter within a living body, and has the manipulator at its distal end with the metallic member(s) having pseudoelasticity at the temperature to be encountered within the body, and wherein the actuator is operable from the proximal end of the device.

US Patent:

56015720, Feb 11, 1997

Filed:

Jun 7, 1995

Appl. No.:

8/486550

Inventors:

Lee M. Middleman - Portola Valley CA
Walter R. Pyka - Redwood City CA
Michael Buhler - Madeira Beach FL
Philippe Poncet - Fremont CA
Karl Van Dyk - Fremont CA
James E. Jervis - Atherton CA
Reza Zadno - Newark CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

A61B 1700

US Classification:

606139

Abstract:

The present invention provides a device or apparatus for manipulating matter in a confined or inaccessible space, comprising manipulator means at least partly constructed of one or more bent or twisted elongate metallic members having pseudoelasticity at the intended manipulation temperature, and a hollow housing (preferably of elongate tubular form) or cannula capable of holding at least the metallic member(s) in a relatively straightened state, and actuating means for extending the metallic member(s) from the housing to manipulate matter within the said space and for withdrawing the metallic member(s) into the housing, the arrangement being such that the metallic member(s) bend(s) or twist(s) pseudoelastically in a lateral or helical sense to manipulate the matter on extending from the housing at the said manipulation temperature, and become(s) relatively straightened on withdrawal into the housing at the said temperature. Preferably the invention provides such a device or apparatus which is of elongate form for surgical manipulation of matter within a living body, and which has the manipulator means at its distal end with the metallic member(s) having pseudoelasticity at the temperature to be encountered within that body, and wherein the actuating means is operable from the proximal end of the device.