公开(公告)号：US20220287758A1

公开(公告)日：2022-09-15

申请号：US17690948

申请日：2022-03-09

Applicant: Trustees of Boston University

Inventor： Chen Yang ,  Ji-Xin Cheng ,  Nan Zheng ,  Yueming Li ,  Ying Jiang ,  Lu Lan ,  Linli Shi

IPC: A61B18/04 ,  B82Y30/00 ,  B82Y40/00 ,  B01J19/10

Abstract: A tapered fiber optoacoustic emitter includes a nanosecond laser configured to emit laser pulses and an optic fiber. The optic fiber includes a tip configured to guide the laser pulses. The tip has a coating including a diffusion layer and a thermal expansion layer, wherein the diffusion layer includes epoxy and zinc oxide nanoparticles configured to diffuse the light while restricting localized heating. The thermal expansion layer includes carbon nanotubes (CNTs) and Polydimethylsiloxane (PDMS) configured to convert the laser pulses to generate ultrasound. The frequency of the ultrasound is tuned with a thickness of the diffusion layer and a CNT concentration of the expansion layer.

公开(公告)号：US11684404B2

公开(公告)日：2023-06-27

申请号：US17690948

申请日：2022-03-09

Applicant: Trustees of Boston University

Inventor： Chen Yang ,  Ji-Xin Cheng ,  Nan Zheng ,  Yueming Li ,  Ying Jiang ,  Lu Lan ,  Linli Shi

IPC: A61B18/04 ,  B01J19/10 ,  B82Y40/00 ,  B82Y30/00 ,  A61B5/00 ,  A61B18/26 ,  A61B8/00 ,  A61B18/22 ,  G01N29/24 ,  G01S15/89 ,  F21V8/00 ,  G02B6/02 ,  G02B6/34

CPC classification number: A61B18/04 ,  A61B5/0095 ,  A61B18/26 ,  B01J19/10 ,  B82Y30/00 ,  B82Y40/00 ,  A61B5/0035 ,  A61B5/0059 ,  A61B8/4416 ,  A61B8/4483 ,  A61B2018/2205 ,  A61B2018/2244 ,  A61B2018/2261 ,  A61B2018/266 ,  G01N29/2431 ,  G01S15/8968 ,  G02B6/004 ,  G02B6/021 ,  G02B6/02033 ,  G02B6/02104 ,  G02B6/34

Abstract: A tapered fiber optoacoustic emitter includes a nanosecond laser configured to emit laser pulses and an optic fiber. The optic fiber includes a tip configured to guide the laser pulses. The tip has a coating including a diffusion layer and a thermal expansion layer, wherein the diffusion layer includes epoxy and zinc oxide nanoparticles configured to diffuse the light while restricting localized heating. The thermal expansion layer includes carbon nanotubes (CNTs) and Polydimethylsiloxane (PDMS) configured to convert the laser pulses to generate ultrasound. The frequency of the ultrasound is tuned with a thickness of the diffusion layer and a CNT concentration of the expansion layer.

公开(公告)号：US20230285063A1

公开(公告)日：2023-09-14

申请号：US18196698

申请日：2023-05-12

Applicant: Trustees of Boston University

Inventor： Chen Yang ,  Ji-Xin Cheng ,  Nan Zheng ,  Yueming Li ,  Ying Jiang ,  Lu Lan ,  Linli Shi

IPC: A61B18/04 ,  B01J19/10 ,  B82Y40/00 ,  B82Y30/00 ,  A61B5/00 ,  A61B18/26

CPC classification number: A61B18/04 ,  B01J19/10 ,  B82Y40/00 ,  B82Y30/00 ,  A61B5/0095 ,  A61B18/26 ,  A61B5/0035 ,  A61B5/0059 ,  A61B8/4416

Abstract: A tapered fiber optoacoustic emitter includes a nanosecond laser configured to emit laser pulses and an optic fiber. The optic fiber includes a tip configured to guide the laser pulses. The tip has a coating including a diffusion layer and a thermal expansion layer, wherein the diffusion layer includes epoxy and zinc oxide nanoparticles configured to diffuse the light while restricting localized heating. The thermal expansion layer includes carbon nanotubes (CNTs) and Polydimethylsiloxane (PDMS) configured to convert the laser pulses to generate ultrasound. The frequency of the ultrasound is tuned with a thickness of the diffusion layer and a CNT concentration of the expansion layer.