Eric Trung Nguyen

US Patent:

7913697, Mar 29, 2011

Filed:

Jan 25, 2010

Appl. No.:

12/693242

Inventors:

Eric Nguyen - Corona CA, US
Donald L. Gadberry - Capistrano Beach CA, US
Gary M. Johnson - Mission Viejo CA, US
Charles C. Hart - Summerville SC, US
John R. Brustad - Dana Point CA, US
Robert R. Bowes - Laguna Hills CA, US
Jeremy J. Albrecht - Rancho Santa Margarita CA, US
Ghassan Sakakine - Rancho Santa Margarita CA, US
Henry Kahle - Trabuco Canyon CA, US

Assignee:

Applied Medical Resources Corporation - Rancho Santa Margarita CA

International Classification:

A61F 13/00

US Classification:

128888, 128889

Abstract:

An incrementally adjustable wound retractor (), having a first ring () with a diameter greater than the desired diameter of the wound incision. A second ring (), having an annular axis and a diameter greater than the desired diameter of the wound incision. A flexible sleeve (), disposed in a generally cylindrical form between the first and second rings (), the second ring may be rolled over itself and around the annular axis to provide a sleeve with a radical retraction force sufficient to stretch the incision to the desired diameter.

US Patent:

8147453, Apr 3, 2012

Filed:

Mar 13, 2006

Appl. No.:

11/374188

Inventors:

Jeremy J. Albrecht - Ladera Ranch CA, US
Gigi Au - Monterey Park CA, US
Eric Nguyen - Corona CA, US
Donald L. Gadberry - San Clemente CA, US
John R. Brustad - Dana Point CA, US
Gary M. Johnson - Mission Viejo CA, US
Charles C. Hart - Summerville SC, US

Assignee:

Applied Medical Resources Corporation - Rancho Santa Margarita CA

International Classification:

A61M 5/178
A61M 29/00

US Classification:

60416404, 60416501, 60416701, 604 9601

Abstract:

A balloon trocar includes a cannula assembly including a cannula and an outer sleeve fitting over the cannula. The distal end of the outer sleeve is proximal to the distal end of the cannula. A balloon is coupled to a distal portion of the sleeve and a distal portion of the cannula. The outer surface of the cannula includes a plurality of longitudinal channels for transmitting gas or fluid to the balloon. A bolster having a gel pad at its distal portion is slidably mounted to the cannula assembly and may be locked in a desired position. In use, the trocar is inserted into an incision through a body wall and into a body cavity. The balloon is inflated and the cannula assembly pulled proximally against the incision while the bolster is slid distally to the body wall and locked in place to seal the incision with the compressed balloon.

US Patent:

8152773, Apr 10, 2012

Filed:

Mar 16, 2009

Appl. No.:

12/405040

Inventors:

Jeremy J. Albrecht - Ladera Ranch CA, US
John R. Brustad - Dana Point CA, US
Gary M. Johnson - Mission Viejo CA, US
Matthew W. Becerra - Foothill Ranch CA, US
Eric Nguyen - Corona CA, US

Assignee:

Applied Medical Resources Corporation - Rancho Santa Margarita CA

International Classification:

A61M 5/178

US Classification:

60416706, 60416701, 60416401

Abstract:

A surgical access port comprises a valve or instrument seal that separates the instrument contact function from the instrument conforming function. Embodiments of the instrument seal comprise in instrument contact element that extends through an opening in a compression element, thereby defining an instrument orifice that seals with an instrument extending therethrough. Embodiments of the instrument contact element comprise a non-distensible membrane or film, for example, as a tube or cylinder. Some embodiments of the instrument contact element have an hourglass configuration with a first end proximal of the opening of the compression element and a second end distal of the opening of the compression element. Other embodiments of the instrument contact element “wrap around” the opening in the compression element, with the first end and the second end secured to the same side of the opening, for example, proximal of the opening. Embodiments of the compression element comprise an elastomeric seal, for example, a septum seal and/or a gel seal.

US Patent:

8235054, Aug 7, 2012

Filed:

Feb 22, 2011

Appl. No.:

13/031892

Inventors:

Eric Nguyen - Lake Elsinore CA, US
Donald L. Gadberry - Capistrano Beach CA, US
Gary M. Johnson - Mission Viejo CA, US
Charles C. Hart - Summerville SC, US
John R. Brustad - Dana Point CA, US
Robert R. Bowes - Laguna Hills CA, US
Jeremy J. Albrecht - Rancho Santa Margarita CA, US
Ghassan Sakakine - Rancho Santa Margarita CA, US
Henry Kahle - Trabuco Canyon CA, US

Assignee:

Applied Medical Resources Corporation - Rancho Santa Margarita CA

International Classification:

A61F 13/00

US Classification:

128888, 128889

Abstract:

An incrementally adjustable wound retractor (), having a first ring () with a diameter greater than the desired diameter of the wound incision. A second ring (), having an annular axis and a diameter greater than the desired diameter of the wound incision. A flexible sleeve (), disposed in a generally cylindrical form between the first and second rings (), the second ring may be rolled over itself and around the annular axis to provide a sleeve with a radical retraction force sufficient to stretch the incision to the desired diameter.

US Patent:

8287503, Oct 16, 2012

Filed:

Mar 8, 2007

Appl. No.:

11/683821

Inventors:

Jeremy J. Albrecht - Ladera Ranch CA, US
Gigi Au - Lake Forest CA, US
Eric Nguyen - Corona CA, US
Donald L Gadberry - San Clemente CA, US
John R Brustad - Dana Point CA, US
Gary M. Johnson - Mission Viejo CA, US
Charles C. Hart - Summerville SC, US
Michael L Michaud - Lake Forest CA, US
Matthew M. Becerra - Foothill Ranch CA, US
Kennii Pravongviengkham - Lake Elsinore CA, US

Assignee:

Applied Medical Resources Corporation - Rancho Santa Margarita CA

International Classification:

A61M 5/00
A61M 5/178

US Classification:

604264, 60416404, 60416501

Abstract:

A balloon trocar includes a cannula assembly including a cannula and an outer sleeve fitting over the cannula. The distal end of the outer sleeve is proximal to the distal end of the cannula. A balloon is coupled to a distal portion of the sleeve and a distal portion of the cannula. The outer surface of the cannula includes a plurality of longitudinal channels for transmitting gas or fluid to the balloon. A bolster having a gel pad at its distal portion is slidably mounted to the cannula assembly and may be locked in a desired position. In use, the trocar is inserted into an incision through a body wall and into a body cavity. The balloon is inflated and the cannula assembly pulled proximally against the incision while the bolster is slid distally to the body wall and locked in place to seal the incision with the compressed balloon.

US Patent:

20050119682, Jun 2, 2005

Filed:

Sep 10, 2002

Appl. No.:

10/494348

Inventors:

Eric Nguyen - Corona CA, US
John Brustad - Dana Point CA, US
Matthew Petrime - Los Angeles CA, US
Gary Johnson - Mission Viejo CA, US
John Cox - Macungie PA, US
Charles Hart - Summerville SC, US

International Classification:

A61M029/00

US Classification:

606194000

Abstract:

A fluid controlled device is adapted for disposition in a body conduit where it controls the flow of body fluids within the conduit. A sleeve is provided with a wall of separation having a first surface which defines a flow passage facilitating the flow of body fluids, and a second surface which defines an exclusion chamber sealed from the flow passage. Various dilators have properties for moving the seal between a low-profile state facilitating insertion of the device, any high-profile state defining the flow passage and exclusion chamber. The dilator may be skeletal, inflatable, and/or porous. An associated method includes the step of dilating a dilation assembly to move a wall from a low profile, insertible state, to a high-profile wherein the wall defines a flow passage and an exclusion cavity.

US Patent:

20050187570, Aug 25, 2005

Filed:

Feb 17, 2005

Appl. No.:

11/059991

Inventors:

Eric Nguyen - Corona CA, US
Charles Hart - Summerville SC, US

International Classification:

A61B017/22

US Classification:

606159000, 606200000

Abstract:

An access device adapted for use in a body conduit is provided comprising an outer tube having a proximal end and a distal end, an inner tube disposed coaxially with the outer tube having a proximal end and a distal end, and an expandable portion having a first end coupled to the distal end of the outer tube and a second end coupled to the distal end of the inner tube. The outer tube and the inner tube are movable relative to each other to transform the expandable portion between a low-profile state and a high-profile state, and at least one of the outer and inner tubes comprises a wire-reinforced tube or is formed from a plurality of individual, discrete, generally ring-shaped elements arranged in series and fused or bonded together to form a continuous tubular structure. The access device may further comprise an actuator coupled to one of the outer and inner tubes and being movable relative to the other of the outer and inner tubes to transform the expandable portion between the low- and high-profile states. The expandable portion may be formed with a braid material and has the shape of a cone. The ring-shaped elements may be formed of a thermoplastic or a thermoset material, and they may include at least one of plastic rings, metallic rings, un-reinforced plastic rings and metal reinforced plastic rings assembled along the length of at least one of the tubes to provide variable flexibility and kink-resistance. The wire-reinforced tube is formed by coating a wire with a plastic material, wrapping the coated wire around a mandrel forming a plurality of windings, and heating the wound coated wire until the plastic material melts and bonds the windings forming the wire-reinforced tube.

US Patent:

20050241647, Nov 3, 2005

Filed:

Jun 3, 2003

Appl. No.:

10/516198

Inventors:

Eric Nguyen - Corona CA, US
Donald Gadberry - San Juan Capistrano CA, US
Gary Johnson - Mission Viejo CA, US
Charles Hart - Summerville SC, US
John Brustad - Dana Point CA, US
Robert Bowes - Laguna Hills CA, US
Jeremy Albrecht - Ladera Ranch CA, US
Ghassan Sakakine - Rancho Santa margarita CA, US
Henry Kahle - Trabuco Canyon CA, US

Assignee:

APPLIED MEDICAL RESOURCES CORPORATION - Rancho Santa Margarita CA

International Classification:

A61B019/08

US Classification:

128856000

Abstract:

An incrementally adjustable wound retractor (), having a first ring () with a diameter greater than the desired diameter of the wound incision. A second ring (), having an annular axis and a diameter greater than the desired diameter of the wound incision. A flexible sleeve (), disposed in a generally cylindrical form between the first and second rings (), the second ring may be rolled over itself and around the annular axis to provide a sleeve with a radical retraction force sufficient to stretch the incision to the desired diameter.