Vinh Thi Pham

US Patent:

8573150, Nov 5, 2013

Filed:

Nov 14, 2008

Appl. No.:

12/742591

Inventors:

Ivan Vecerina - Lausanne, CH
Vinh Pham - Rancho Santa Margarita CA, US

Assignee:

Biosensors International Group, Ltd. - Hamilton

International Classification:

B05C 11/00
B05C 13/00
G01P 3/36
A61L 33/00
B05D 3/00

US Classification:

118681, 118668, 118674, 118663, 118500, 118DIG 11, 427 224, 427 225, 356 28

Abstract:

An automated apparatus and method for coating medical devices such as an intravascular stent, are disclosed in the method, a 2-D image of a stent is processed to determine (1) paths along the stent skeletal elements by which a stent secured to a rotating support element can be traversed by a dispenser head whose relative motion with respect to the support element is along the support-element axis, such that some or all of the stent skeletal elements will be traversed (2) the relative speeds of the dispenser head and support element as the dispenser head travels along the paths, and (3), and positions of the dispenser head with respect to a centerline of the stent elements as the dispenser head travels along such paths The rotational speed of the support and relative linear speed of the dispenser are controlled to achieve the desired coating thickness and coating coverage on the upper surfaces, and optionally, the side surfaces, of the stent elements.

US Patent:

20170080452, Mar 23, 2017

Filed:

Dec 5, 2016

Appl. No.:

15/369498

Inventors:

- Hamilton, BM
Vinh Pham - Rancho Santa Margarita CA, US

International Classification:

B05D 1/02
A61F 2/915

Abstract:

An automated apparatus and method for coating medical devices such as an intravascular stent, are disclosed in the method, a 2-D image of a stent is processed to determine (1) paths along the stent skeletal elements by which a stent secured to a rotating support element can be traversed by a dispenser head whose relative motion with respect to the support element is along the support-element axis, such that some or all of the stent skeletal elements will be traversed (2) the relative speeds of the dispenser head and support element as the dispenser head travels along the paths, and (3), and positions of the dispenser head with respect to a centerline of the stent elements as the dispenser head travels along such paths The rotational speed of the support and relative linear speed of the dispenser are controlled to achieve the desired coating thickness and coating coverage on the upper surfaces, and optionally, the side surfaces, of the stent elements

US Patent:

20140245952, Sep 4, 2014

Filed:

Sep 30, 2013

Appl. No.:

14/042682

Inventors:

- Hamilton, BM
Vinh Pham - Rancho Santa Margarita CA, US

Assignee:

Biosensors International Group, Ltd. - Hamilton

International Classification:

B05B 12/02
A61L 31/00

US Classification:

118695

Abstract:

An automated apparatus and method for coating medical devices such as an intravascular stent, are disclosed in the method, a 2-D image of a stent is processed to determine (1) paths along the stent skeletal elements by which a stent secured to a rotating support element can be traversed by a dispenser head whose relative motion with respect to the support element is along the support-element axis, such that some or all of the stent skeletal elements will be traversed (2) the relative speeds of the dispenser head and support element as the dispenser head travels along the paths, and (3), and positions of the dispenser head with respect to a centerline of the stent elements as the dispenser head travels along such paths The rotational speed of the support and relative linear speed of the dispenser are controlled to achieve the desired coating thickness and coating coverage on the upper surfaces, and optionally, the side surfaces, of the stem elements