Thomas Dinh Pham

US Patent:

8414604, Apr 9, 2013

Filed:

Oct 13, 2009

Appl. No.:

12/578204

Inventors:

Darren Doud - San Jose CA, US
Tomislav Huljev - San Carlos CA, US
Ralph McNall - Menlo Park CA, US
Brandon Fell - Menlo Park CA, US
Priyanshu Gupta - Palo Alto CA, US
Ryan Olivera - Fair Oaks CA, US
Thomas C. Pham - San Jose CA, US

Assignee:

Covidien LP - Mansfield MA

International Classification:

A61B 17/22

US Classification:

606159

Abstract:

A catheter for performing a procedure at a treatment site in the lumen of a blood vessel. The catheter includes an elongate tubular shaft having a proximal bend, a distal bend and a hinge element. A distal portion of the shaft includes a window extending through the sidewall of the shaft between the hinge element and the distal end of the elongate tubular shaft. A working element is disposed within the lumen of the elongate tubular shaft and is configured for performing the procedure through the window at the treatment site. The bends and hinge element are configured to urge the window against a wall of the vessel at the treatment site.

US Patent:

20130152941, Jun 20, 2013

Filed:

Dec 16, 2011

Appl. No.:

13/328357

Inventors:

Hoa D. Nguyen - San Jose CA, US
Michael S. Mirizzi - San Jose CA, US
Thomas C. Pham - San Jose CA, US

Assignee:

TYCO HEALTHCARE GROUP LP - Mansfield MA

International Classification:

A61F 6/06

US Classification:

128830

Abstract:

The various embodiments simplify the delivery of an occlusive implant to a hollow anatomical structure, such as a fallopian tube. For example, the delivery devices don't need to be retracted manually to deploy the implant. When the devices are activated, stored energy or a powered drive member induces movement of the various components. The operator need only position the distal ends of the devices at the treatment site and then commence deployment by, for example, flipping a switch or changing the position of an activation button. The present embodiments thus increase the efficacy of occlusion procedures by reducing the likelihood of operator error.

US Patent:

20210338467, Nov 4, 2021

Filed:

Jul 15, 2021

Appl. No.:

17/377167

Inventors:

- Mansfield MA, US
Hillary K. Huszar - Redwood City CA, US
Mark A. Maguire - Hillsborough CA, US
Shawn C. Daniel - San Jose CA, US
Thomas Pham - San Jose CA, US
Madeline A. Mannion - Beverly MA, US
Olivia P. Metcalf - Santa Rosa CA, US

International Classification:

A61F 2/966
A61F 2/91
A61F 2/07

Abstract:

Methods, apparatuses and systems are described for stent delivery and positioning to cover an access site. A stent delivery system may include a tubular member configured to advance through an access site and a primary constrainment member configured to releasably couple the stent to the tubular member. The stent delivery system may further include a secondary constrainment member at least partially disposed around the primary constrainment member, the stent, and the tubular member. In some cases, the tubular member and the primary constrainment member may be configured to reposition the stent within the body lumen after removal of the secondary constrainment member such that at least a portion of the stent covers the access site after withdrawal of the tubular member, the primary constrainment member, and the secondary constrainment member from the body lumen through the access site.

US Patent:

20210338468, Nov 4, 2021

Filed:

Jul 16, 2021

Appl. No.:

17/378103

Inventors:

- Mansfield MA, US
Hillary K. Huszar - Redwood City CA, US
Mark A. Maguire - Hillsborough CA, US
Shawn C. Daniel - San Jose CA, US
Thomas Pham - San Jose CA, US
Madeline A. Mannion - Beverly MA, US
Olivia P. Metcalf - Santa Rosa CA, US

International Classification:

A61F 2/966
A61F 2/91
A61F 2/07

Abstract:

Methods, apparatuses and systems are described for expandable stent delivery apparatus to cover an access site. The method may include delivering a stent delivery system through an access site, where the stent delivery system comprises a positioning member with a first portion that is rotatable with respect to a second portion, and where the stent is releasably coupled with the first portion of the positioning member. In some cases, the method may further include withdrawing an outer constrainment member front the stent to deploy a proximal portion of the stent within the body lumen and rotating the proximal portion of the stent away from the access site by withdrawing the positioning member proximally and back through the access site. The method may further include covering the access site with the proximal portion of the stent upon fully deploying the proximal portion from the outer constrainment member.

US Patent:

20200214862, Jul 9, 2020

Filed:

Jan 8, 2019

Appl. No.:

16/242596

Inventors:

- Mansfield MA, US
Hillary K. Huszar - Redwood City CA, US
Mark A. Maguire - Hillsborough CA, US
Shawn C. Daniel - San Jose CA, US
Thomas Pham - San Jose CA, US
Madeline A. Mannion - Beverly MA, US
Olivia P. Metcalf - Santa Rosa CA, US

International Classification:

A61F 2/966
A61F 2/91
A61F 2/07

Abstract:

Methods, apparatuses and systems are described for stent delivery and positioning to cover an access site. The method may include delivering the stent through an access site in a wall of the body lumen. In some cases, the method may include repositioning the stent within the body lumen to at least partially cover the access site with the stent. The stent may be repositioned within the body lumen by retracting the stent towards the access site such that a proximal portion of the stent at least partially covers the access site. The stent may then expand within the body lumen. In some cases, the stent may expand within the body lumen by releasing a primary constrainment member from the stent by pulling the primary constrainment member in a proximal direction away from the stent.

US Patent:

20200214863, Jul 9, 2020

Filed:

Jan 8, 2019

Appl. No.:

16/242602

Inventors:

- Mansfield MA, US
Hillary K. Huszar - Redwood City CA, US
Mark A. Maguire - Hillsborough CA, US
Shawn C. Daniel - San Jose CA, US
Thomas Pham - San Jose CA, US
Madeline A. Mannion - Beverly MA, US
Olivia P. Metcalf - Santa Rosa CA, US

International Classification:

A61F 2/966
A61F 2/91
A61F 2/07

Abstract:

Methods, apparatuses and systems are described for stent delivery and positioning to cover an access site. A stent delivery system may include a tubular member configured to advance through an access site and a primary constrainment member configured to releasably couple the stent to the tubular member. The stent delivery system may further include a secondary constrainment member at least partially disposed around the primary constrainment member, the stent, and the tubular member. In some cases, the tubular member and the primary constrainment member may be configured to reposition the stent within the body lumen after removal of the secondary constrainment member such that at least a portion of the stent covers the access site after withdrawal of the tubular member, the primary constrainment member, and the secondary constrainment member from the body lumen through the access site.

US Patent:

20200214865, Jul 9, 2020

Filed:

Jan 8, 2019

Appl. No.:

16/242618

Inventors:

- Mansfield MA, US
Hillary K. Huszar - Redwood City CA, US
Mark A. Maguire - Hillsborough CA, US
Shawn C. Daniel - San Jose CA, US
Thomas Pham - San Jose CA, US
Madeline A. Mannion - Beverly MA, US
Olivia P. Metcalf - Santa Rosa CA, US

International Classification:

A61F 2/966
A61F 2/91
A61F 2/07

Abstract:

Methods, apparatuses and systems are described for expandable stent delivery apparatus to cover an access site. The method may include delivering a stent delivery system through an access site, where the stent delivery system comprises a positioning member with a first portion that is rotatable with respect to a second portion, and where the stent is releasably coupled with the first portion of the positioning member. In some cases, the method may further include withdrawing an outer constrainment member from the stent to deploy a proximal portion of the stent within the body lumen and rotating the proximal portion of the stent away from the access site by withdrawing the positioning member proximally and back through the access site. The method may further include covering the access site with the proximal portion of the stent upon fully deploying the proximal portion from the outer constrainment member.

US Patent:

20160038175, Feb 11, 2016

Filed:

Oct 19, 2015

Appl. No.:

14/886147

Inventors:

- Mansfield MA, US
Tomislav Huljev - San Carlos CA, US
Ralph McNall - Menlo Park CA, US
Brandon Fell - Menlo Park CA, US
Priyanshu Gupta - Columbus OH, US
Ryan Olivera - Fair Oaks CA, US
Thomas C. Pham - San Jose CA, US

International Classification:

A61B 17/3207

Abstract:

A catheter for performing a procedure at a treatment site in the lumen of a blood vessel. The catheter includes an elongate tubular shaft having a proximal bend, a distal bend and a hinge element. A distal portion of the shaft includes a window extending through the sidewall of the shaft between the hinge element and the distal end of the elongate tubular shaft. A working element is disposed within the lumen of the elongate tubular shaft and is configured for performing the procedure through the window at the treatment site. The bends and hinge element are configured to urge the window against a wall of the vessel at the treatment site.