Tommy V Nguyen

US Patent:

8475353, Jul 2, 2013

Filed:

Aug 18, 2009

Appl. No.:

12/543463

Inventors:

Eduardo Chi Sing - Dana Point CA, US
Tommy G. Nguyen - Irvine CA, US

Assignee:

Cianna Medical, Inc. - Aliso Viejo CA

International Classification:

A61N 5/00

US Classification:

600 3, 600 7, 600 1, 600 9, 600 6, 604104, 604 57, 60416401, 604309, 606192, 606193, 606198, 128897, 128898, 128899

Abstract:

An applicator for delivering brachytherapy includes elongate members movable between collapsed and expanded configurations for delivering brachytherapy within a lumpectomy cavity, a vaginal cavity, or other target region. The elongate members may be expandable into a symmetrical or asymmetrical expanded configuration, e. g. , into a generally spherical, pear-shaped, or planar configuration. A system for delivering brachytherapy includes the applicator and an access device for lining and/or dilating a body cavity and/or for receiving the applicator therein. The access device is advanced into a body cavity, an expandable member on the access device is inflated, the applicator is advanced into the access device, and the elongate members are expanded to deliver radiation to the target region. Alternatively, the access device carries an expandable device into the target region, the expandable device is removed after dilating the target region, and the applicator is introduced through the access device to deliver radiation.

US Patent:

8517907, Aug 27, 2013

Filed:

Nov 24, 2008

Appl. No.:

12/277286

Inventors:

Eduardo Chi Sing - Dana Point CA, US
Tommy G. Nguyen - Irvine CA, US
George D. Hermann - Portola Valley CA, US
Than Nguyen - Fountain Valley CA, US
Doug S. Sutton - Pacifica CA, US

Assignee:

Cianna Medical, Inc. - Aliso Viejo CA

International Classification:

A61M 36/12

US Classification:

600 7, 600 1, 600 3

Abstract:

Apparatus for delivering brachytherapy to a target tissue region includes an elongate body including a proximal end, a distal end sized for introduction into a tissue tract and carrying a plurality of elongate members including pathways for receiving a source of radiation. The elongate members are movable between collapsed and expanded configurations. During use, a tract is created through tissue, and the elongate body carrying the elongate members is advanced through the tract into a target location with the elongate members in the collapsed configuration. The elongate members are directed to the expanded configuration at the target location, and radiation is delivered to treat tissue at the target location, e. g. , by introducing one or more radiation sources along the pathways.

US Patent:

8636635, Jan 28, 2014

Filed:

Aug 18, 2009

Appl. No.:

12/543469

Inventors:

Eduardo Chi Sing - Dana Point CA, US
Tommy G. Nguyen - Irvine CA, US

Assignee:

Cianna Medical, Inc. - Aliso Viejo CA

International Classification:

A61N 5/00
A61M 36/00

US Classification:

600 1, 600 6, 600 7, 600 15, 600 19, 600 41, 604915, 604912, 606198, 606 41, 606 46

Abstract:

An applicator for delivering brachytherapy includes elongate members movable between collapsed and expanded configurations for delivering brachytherapy within a lumpectomy cavity, a vaginal cavity, or other target region. The elongate members may be expandable into a symmetrical or asymmetrical expanded configuration, e. g. , into a generally spherical, pear-shaped, or planar configuration. A system for delivering brachytherapy includes the applicator and an access device for lining and/or dilating a body cavity and/or for receiving the applicator therein. The access device is advanced into a body cavity, an expandable member on the access device is inflated, the applicator is advanced into the access device, and the elongate members are expanded to deliver radiation to the target region. Alternatively, the access device carries an expandable device into the target region, the expandable device is removed after dilating the target region, and the applicator is introduced through the access device to deliver radiation.

US Patent:

20080091055, Apr 17, 2008

Filed:

Oct 6, 2007

Appl. No.:

11/868483

Inventors:

Tommy Nguyen - Irvine CA, US
Than Nguyen - Fountain Valley CA, US
Doug Sutton - Pacifica CA, US
George Hermann - Portola Valley CA, US
Luis Urquidi - Oceanside CA, US

Assignee:

Cianna Medical, Inc. - Aliso Viejo CA

International Classification:

A61M 36/12

US Classification:

600007000

Abstract:

Apparatus for delivering brachytherapy to a target tissue region includes an elongate body including a proximal end, a distal end sized for introduction into a tissue tract and carrying a plurality of elongate members including pathways for receiving a source of radiation. The elongate members are movable between collapsed and expanded configurations. During use, a tract is created through tissue, and the elongate body carrying the elongate members is advanced through the tract into a target location with the elongate members in the collapsed configuration. The elongate members are directed to the expanded configuration at the target location, and radiation is delivered to treat tissue at the target location, e.g., by introducing one or more radiation sources along the pathways. The apparatus may include features to prevent overexpansion of the elongate members and/or to facilitate rapid collapse of the elongate members.

US Patent:

20080221384, Sep 11, 2008

Filed:

Jun 1, 2007

Appl. No.:

11/757231

Inventors:

Eduardo Chi Sing - Dana Point CA, US
George D. Hermann - Portola Valley CA, US
Doug S. Sutton - Pacifica CA, US
Tommy G. Nguyen - Irvine CA, US
Mark A. Ritchart - Murrieta CA, US
Steven L. Gex - Monarch Beach CA, US

Assignee:

Cianna Medical, Inc. - Aliso Viejo CA

International Classification:

A61M 36/12
A61M 36/04

US Classification:

600 7, 600 3

Abstract:

Apparatus for delivering brachytherapy to a target tissue region includes an elongate body including a proximal end, a distal end sized for introduction into a tissue tract and carrying a plurality of elongate members including pathways for receiving a source of radiation. The elongate members are movable between collapsed and expanded configurations. During use, a tract is created through tissue, and the elongate body carrying the elongate members is advanced through the tract into a target location with the elongate members in the collapsed configuration. The elongate members are directed to the expanded configuration at the target location, and radiation is delivered to treat tissue at the target location, e.g., by introducing one or more radiation sources along the pathways.

US Patent:

20110230700, Sep 22, 2011

Filed:

Mar 18, 2010

Appl. No.:

12/727209

Inventors:

Eduardo Chi Sing - Dana Point CA, US
Tommy G. Nguyen - Irvine CA, US
Luis R. Urquidi - Oceanside CA, US

Assignee:

Cianna Medical, Inc. - Aliso Viejo CA

International Classification:

A61M 36/12

US Classification:

600 7

Abstract:

Brachytherapy treatment apparatus are provided that include an elongate body including a core member and an outer member surrounding and movable relative to the core member. One or more helical catheters are provided on a distal portion of the elongate body, e.g., including distal ends coupled to the core member and proximal ends coupled to the outer member. The outer member is movable relative to the core member, e.g., axially and/or rotationally, to direct the helical catheters between a collapsed configuration for introduction through a tissue tract to a target location, e.g., a lumpectomy cavity, and an expanded configuration. Each helical catheter includes a lumen, and, after expansion to the expanded configuration, a source of radiation may be introduced along the helical catheters and/or a lumen of the core member for delivering radiation to the target location. Optionally, the apparatus may include a balloon surrounding or within the helical members.

US Patent:

20110313288, Dec 22, 2011

Filed:

Mar 21, 2011

Appl. No.:

13/053197

Inventors:

Eduardo Chi Sing - Dana Point CA, US
Tommy G. Nguyen - Irvine CA, US
Luis Urquidi - Oceanside CA, US

International Classification:

A61B 8/00

US Classification:

600437

Abstract:

Apparatus, systems, and methods are provided for localizing lesions within a patient's body, e.g., within a breast. The system may include one or more markers implantable within or around the target tissue region, and a probe for transmitting and receiving electromagnetic signals to detect the one or more markers. During use, the marker(s) are into a target tissue region, and the probe is placed against the patient's skin to detect and localize the marker(s). A tissue specimen, including the lesion and the marker(s), is then removed from the target tissue region based at least in part on the localization information from the probe.

US Patent:

20120022314, Jan 26, 2012

Filed:

Jul 21, 2010

Appl. No.:

12/841111

Inventors:

Eduardo Chi Sing - Dana Point CA, US
Tommy G. Nguyen - Irvine CA, US

Assignee:

CIANNA MEDICAL, INC. - Aliso Viejo CA

International Classification:

A61M 36/04

US Classification:

600 3

Abstract:

A brachytherapy treatment apparatus is provided that includes a center catheter including proximal and distal ends defining a central longitudinal axis therebetween, the center catheter including a bend between the proximal and distal ends. The apparatus includes a pair of expandable catheters including pathways extending between the proximal and distal ends thereof, the expandable catheter distal ends coupled to the distal end of the core member. An actuator is coupled to the expandable catheters adjacent expandable portions that is movable relative to the center catheter for moving the expandable portions between a collapsed configuration wherein the expandable portions extend substantially parallel to the center catheter and an expanded configuration wherein the expandable portions bow away from one another substantially within a curved plane aligned generally with a bend of to the center catheter. A balloon is provided adjacent the expandable portions and surrounding a portion of the catheters.