Dinh V Nguyen

US Patent:

20200297367, Sep 24, 2020

Filed:

May 13, 2020

Appl. No.:

15/929630

Inventors:

- Mansfield MA, US
Dinh Nguyen - Garden Grove CA, US
Hoai Nguyen - Westminster CA, US

International Classification:

A61B 17/22
A61F 2/95
A61B 17/221

Abstract:

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.

US Patent:

20190175200, Jun 13, 2019

Filed:

Dec 11, 2017

Appl. No.:

15/838230

Inventors:

- Mansfield MA, US
Dinh Nguyen - Garden Grove CA, US
Hoai Nguyen - Santa Ana CA, US

International Classification:

A61B 17/22
A61F 2/95

Abstract:

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.