Douglas A Evans

US Patent:

6805666, Oct 19, 2004

Filed:

May 23, 2002

Appl. No.:

10/154183

Inventors:

Donna D. Holland - Roswell GA 30075
Douglas G. Evans - Snellville GA 30039

International Classification:

A61B 132

US Classification:

600212, 600215, 600210, 600235, 600213, 600245

Abstract:

An illuminated surgical retractor for defining and illuminating a subcutaneous surgical field in the space near a vessel (such as the saphenous vein or radial artery) during a procedure for harvesting the vessel, wherein the illuminated surgical retractor includes a handle member pivotally connected at an acute angle to a first elongate section that has an at least partially tapered width, and includes a second elongate section releasably connected to the first elongate section, wherein a portion of the second elongate section defines an illumination input end portion, which is optically coupled to a light source to substantially illuminate the second elongate section, and further including an insertion area positioned on the proximal end portion of the first elongate section to allow the second elongate section to be inserted into the first elongate section.

US Patent:

6817978, Nov 16, 2004

Filed:

Jan 23, 2002

Appl. No.:

10/055778

Inventors:

Donna D. Holland - Roswell GA
Douglas G. Evans - Snellville GA

Assignee:

Teleflex-CT Devices Incorporated - Limerick PA

International Classification:

A61B 132

US Classification:

600212, 600210, 600213, 600215, 600235, 600245

Abstract:

An illuminated surgical retractor for defining and illuminating a subcutaneous surgical field in the space near a vessel (such as the radial artery or the basilic vein) during a procedure for harvesting the vessel, wherein the illuminated surgical retractor includes a handle member pivotally connected at an acute angle to a first elongate section that has a non-liner shape, and includes a second elongate section releasably connected to the first elongate section, wherein a portion of the second elongate section defines an illumination input end portion, which is optically coupled to a light source to substantially illuminate the second elongate section, and further including an insertion area positioned on the proximal end portion of the first elongate section to allow the second elongate section to be inserted into the first elongate section.

US Patent:

7311662, Dec 25, 2007

Filed:

Jul 13, 2004

Appl. No.:

10/889017

Inventors:

Donna D. Holland - Roswell GA, US
Douglas G. Evans - Snellville GA, US

Assignee:

Technology Holding Company II - Wilmington DE

International Classification:

A61B 1/32

US Classification:

600212, 600213, 600215, 600235, 600245

Abstract:

An illuminated surgical retractor for defining and illuminating a subcutaneous surgical field in the space near a vessel (such as the radial artery or the basilic vein) during a procedure for harvesting the vessel, wherein the illuminated surgical retractor includes a handle member pivotally connected at an acute angle to a first elongate section that has a non-liner shape, and includes a second elongate section releasably connected to the first elongate section, wherein a portion of the second elongate section defines an illumination input end portion, which is optically coupled to a light source to substantially illuminate the second elongate section, and further including an insertion area positioned on the proximal end portion of the first elongate section to allow the second elongate section to be inserted into the first elongate section.

US Patent:

7261689, Aug 28, 2007

Filed:

Jul 6, 2004

Appl. No.:

10/883664

Inventors:

Donna D. Holland - Roswell GA, US
Douglas G. Evans - Snellville GA, US

Assignee:

Teleflex Medical Incorporated - Limerick PA

International Classification:

A61B 1/32

US Classification:

600212, 600215, 600210

Abstract:

An illuminated surgical retractor for defining and illuminating a subcutaneous surgical field in the space near a vessel (such as the saphenous vein or radial artery) during a procedure for harvesting the vessel, wherein the illuminated surgical retractor includes a handle member pivotally connected at an acute angle to a first elongate section that has an at least partially tapered width, and includes a second elongate section releasably connected to the first elongate section, wherein a portion of the second elongate section defines an illumination input end portion, which is optically coupled to a light source to substantially illuminate the second elongate section, and further including an insertion area positioned on the proximal end portion of the first elongate section to allow the second elongate section to be inserted into the first elongate section.

US Patent:

61592315, Dec 12, 2000

Filed:

Feb 1, 2000

Appl. No.:

9/495466

Inventors:

Christopher Sean Looney - Alpharetta GA
Douglas G. Evans - Atlanta GA

Assignee:

Genzyme Corporation - Cambridge MA

International Classification:

A61B 1728

US Classification:

606206

Abstract:

A retractor comprising a rack having a first section and a second section, a first blade fixedly attached to the rack, and a second blade movably attached to the rack. The first and second blades engage two adjacent ribs in a patient. The first section and the second section of the rack form a nonlinear angle therebetween so that when the first section is horizontally disposed, the second section is disposed at an angle relative to a horizontal plane. The present invention also uses an external lifting device disposed above the retractor and that creates an upwardly-directed force on the second blade. The retractor increases the field of vision for the surgeon based on the design of the rack and the use of the external lifting device.

US Patent:

63224992, Nov 27, 2001

Filed:

Jan 20, 2000

Appl. No.:

9/490130

Inventors:

Douglas Gerald Evans - Chamblee GA
Donna DiMarco Holland - Atlanta GA

Assignee:

Genzyme Corporation - Cambridge MA

International Classification:

A61B 132

US Classification:

600212

Abstract:

An illuminated surgical retractor for illuminating a subcutaneous surgical field in the space between a vessel, such as the saphenous vein, and the subcutaneous tissue when the illuminated retractor is used to retract the subcutaneous tissue away from the superior surface of the vessel, the illuminated surgical retractor having a handle member pivotally connected at an acute angle to a first elongate section and a second elongate section that is releasably connected to the first elongate section and a portion of the second elongate section defining an illumination input end portion which is optically coupled to a light source so that the second elongate section is substantially illuminated, and, a shroud member is positioned on the proximal end portion of the first elongate section to aid in the dissection of the intervening tissue.

US Patent:

60334258, Mar 7, 2000

Filed:

Nov 12, 1997

Appl. No.:

8/968949

Inventors:

Christopher Sean Looney - Alpharetta GA
Douglas G. Evans - Atlanta GA

Assignee:

Genzyme Corporation - Cambridge MA

International Classification:

A61B 1728

US Classification:

606206

Abstract:

A retractor comprising a rack having a first section and a second section, a first blade fixedly attached to the rack, and a second blade movably attached to the rack. The first and second blades engage two adjacent ribs in a patient. The first section and the second section of the rack form a nonlinear angle therebetween so that when the first section is horizontally disposed, the second section is disposed at an angle relative to a horizontal plane. The present invention also uses an external lifting device disposed above the retractor and that creates an upwardly-directed force on the second blade. The retractor increases the field of vision for the surgeon based on the design of the rack and the use of the external lifting device.