公开(公告)号：US20240148253A1

公开(公告)日：2024-05-09

申请号：US18416264

申请日：2024-01-18

申请人： Avinger, Inc.

发明人： John B. SIMPSON ,  Himanshu N. PATEL ,  Michael ZUNG ,  Charles W. MCNALL ,  Priyanshu GUPTA ,  Maegan K. SPENCER ,  Christopher B. WHITE ,  Dennis W. JACKSON ,  John F. BLACK

IPC分类号： A61B5/00 ,  A61B5/02 ,  A61B6/00 ,  A61B6/12 ,  A61B8/08 ,  A61B17/32 ,  A61B17/3207 ,  A61B90/00

CPC分类号： A61B5/0084 ,  A61B5/0035 ,  A61B5/0036 ,  A61B5/0062 ,  A61B5/0066 ,  A61B5/02007 ,  A61B5/6852 ,  A61B6/12 ,  A61B6/485 ,  A61B6/487 ,  A61B8/0841 ,  A61B17/32002 ,  A61B17/320758 ,  A61B90/37 ,  A61B90/39 ,  A61B2017/22068 ,  F04C2270/0421

摘要： A catheter device for crossing occlusions includes an elongate body, a central lumen extending within the elongate body from the proximal end to the distal end, a rotatable tip at the distal end of the elongate body, and an OCT imaging sensor. The rotatable tip is configured to rotate relative to the elongate body. The OCT imaging sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. A distal end of the elongate body includes one or more markers configured to occlude the OCT imaging sensor as it rotates. A fixed jog in the elongate body proximal to the distal end of the catheter positions the distal end of the catheter at an angle relative to the region of the catheter proximal to the fixed jog and is aligned with the one or more markers on the elongate body.

公开(公告)号：US20230329746A1

公开(公告)日：2023-10-19

申请号：US18337852

申请日：2023-06-20

申请人： AVINGER, INC.

发明人： Michael H. ROSENTHAL ,  Michael ZUNG ,  Nicholas J. SPINELLI ,  Charles W. MCNALL ,  John B. SIMPSON ,  John F. BLACK

IPC分类号： A61B17/3207 ,  A61M25/00 ,  A61M25/01 ,  A61B90/00

CPC分类号： A61B17/320758 ,  A61B17/32075 ,  A61M25/0074 ,  A61M25/0133 ,  A61B90/361 ,  A61B2017/320766 ,  A61B2017/2927

摘要： Described herein are atherectomy catheters, systems and methods that include a distal tip region that may be moved laterally so that its long axis is parallel with the long axis of the main catheter body axis. Displacing the distal tip region laterally out of the main catheter body axis exposes an annular blade and opens a passageway for cut tissue to enter a storage region within the catheter. The annular blade may be internally coupled to a drive shaft that rotates the blade, and thus the exposed blade edge may have the same crossing profile (OD) as the rest of the distal end region of the catheter. Also described herein are gear-driven atherectomy devices that may use a cable drive shaft to actuate the annular blade. Both push-to-cut and pull-to-cut variations are described, as are methods for cutting tissue and systems including these atherectomy catheters.

公开(公告)号：US20220240860A1

公开(公告)日：2022-08-04

申请号：US17652073

申请日：2022-02-22

申请人： Avinger, Inc.

发明人： John F. BLACK ,  Maegan K. SPENCER ,  Michael ZUNG ,  Charles W. MCNALL ,  Evangeline LUMABAS ,  Michael H. ROSENTHAL ,  John B. SIMPSON

IPC分类号： A61B5/00

摘要： Described herein are catheters for use with Optical Coherence Tomography (OCT) that include an optical fiber core having a first refractive index and an interface medium having a second refractive index, where the first and second refractive indexes are mismatched such that receiving electronics configured to receive optical radiation reflected from the reference interface and the target operate in a total noise range that is within 5 dB of the shot noise limit. These OCT catheters may include a silicon die mirror having a reflective coating that is embedded in the interface medium. The optical fiber can be fixed at just the distal end of the catheter, and may be managed within a handle that is attached to the proximal end of the catheter body, and is configured to allow rotation of the both catheter body and the optical fiber relative to the handle.

公开(公告)号：US20240057942A1

公开(公告)日：2024-02-22

申请号：US18499555

申请日：2023-11-01

申请人： AVINGER, INC.

发明人： John F. BLACK ,  Maegan K. SPENCER ,  Michael ZUNG ,  Charles W. MCNALL ,  Evangeline LUMABAS ,  Michael H. ROSENTHAL ,  John B. SIMPSON

IPC分类号： A61B5/00

CPC分类号： A61B5/6852 ,  A61B5/0066

摘要： Described herein are catheters for use with Optical Coherence Tomography (OCT) that include an optical fiber core having a first refractive index and an interface medium having a second refractive index, where the first and second refractive indexes are mismatched such that receiving electronics configured to receive optical radiation reflected from the reference interface and the target operate in a total noise range that is within 5 dB of the shot noise limit. These OCT catheters may include a silicon die mirror having a reflective coating that is embedded in the interface medium. The optical fiber can be fixed at just the distal end of the catheter, and may be managed within a handle that is attached to the proximal end of the catheter body, and is configured to allow rotation of the both catheter body and the optical fiber relative to the handle.

公开(公告)号：US20190110809A1

公开(公告)日：2019-04-18

申请号：US16105743

申请日：2018-08-20

申请人： AVINGER, INC.

发明人： Michael H. ROSENTHAL ,  Michael ZUNG ,  Nicholas J. SPINELLI ,  Charles W. McNALL ,  John B. SIMPSON ,  John F. BLACK

IPC分类号： A61B17/3207 ,  A61B90/00 ,  A61M25/00 ,  A61M25/01

摘要： Described herein are atherectomy catheters, systems and methods that include a distal tip region that may be moved laterally so that its long axis is parallel with the long axis of the main catheter body axis. Displacing the distal tip region laterally out of the main catheter body axis exposes an annular blade and opens a passageway for cut tissue to enter a storage region within the catheter. The annular blade may be internally coupled to a drive shaft that rotates the blade, and thus the exposed blade edge may have the same crossing profile (OD) as the rest of the distal end region of the catheter. Also described herein are gear-driven atherectomy devices that may use a cable drive shaft to actuate the annular blade. Both push-to-cut and pull-to-cut variations are described, as are methods for cutting tissue and systems including these atherectomy catheters.

公开(公告)号：US20210177262A1

公开(公告)日：2021-06-17

申请号：US16943446

申请日：2020-07-30

申请人： Avinger, Inc.

发明人： Maegan K. SPENCER ,  Christopher B. WHITE ,  Charles W. MCNALL ,  Dennis W. JACKSON ,  Michael ZUNG ,  Nicholas J. SPINELLI ,  Benjamin NGO ,  Evangeline LUMABAS ,  Kin F. CHAN ,  John F. BLACK ,  Michael H. ROSENTHAL ,  John B. SIMPSON

IPC分类号： A61B5/00 ,  A61B5/02

摘要： A system for imaging a body lumen includes a controller and a display. The controller is configured to connect to a proximal end of a catheter having an optical fiber extending along the length of an elongate catheter body. The controller is further configured to rotate a distal end of the optical fiber from a location near a proximal end of the elongate catheter body, acquire optical coherence tomography (OCT) images using the optical fiber as the distal end of the optical fiber rotates, and determine a rotational lag of the distal end of the optical fiber. The display is configured to display one or more OCT images corrected for the rotational lag.

公开(公告)号：US20220095926A1

公开(公告)日：2022-03-31

申请号：US17449867

申请日：2021-10-04

申请人： Avinger, Inc.

发明人： John B. SIMPSON ,  Himanshu N. PATEL ,  Michael ZUNG ,  Charles W. MCNALL ,  Priyanshu GUPTA ,  Maegan K. SPENCER ,  Christopher B. WHITE ,  Dennis W. JACKSON ,  John F. BLACK

IPC分类号： A61B5/00 ,  A61B17/3207 ,  A61B90/00 ,  A61B5/02 ,  A61B6/12 ,  A61B6/00 ,  A61B8/08 ,  A61B17/32

摘要： A catheter device for crossing occlusions includes an elongate body, a central lumen extending within the elongate body from the proximal end to the distal end, a rotatable tip at the distal end of the elongate body, and an OCT imaging sensor. The rotatable tip is configured to rotate relative to the elongate body. The OCT imaging sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. A distal end of the elongate body includes one or more markers configured to occlude the OCT imaging sensor as it rotates. A fixed jog in the elongate body proximal to the distal end of the catheter positions the distal end of the catheter at an angle relative to the region of the catheter proximal to the fixed jog and is aligned with the one or more markers on the elongate body.

公开(公告)号：US20200069253A1

公开(公告)日：2020-03-05

申请号：US16506851

申请日：2019-07-09

申请人： Avinger, Inc.

发明人： John F. BLACK ,  Maegan K. SPENCER ,  Michael ZUNG ,  Charles W. MCNALL ,  Evangeline LUMABAS ,  Michael H. ROSENTHAL ,  John B. SIMPSON

IPC分类号： A61B5/00

摘要： Described herein are catheters for use with Optical Coherence Tomography (OCT) that include an optical fiber core having a first refractive index and an interface medium having a second refractive index, where the first and second refractive indexes are mismatched such that receiving electronics configured to receive optical radiation reflected from the reference interface and the target operate in a total noise range that is within 5 dB of the shot noise limit. These OCT catheters may include a silicon die mirror having a reflective coating that is embedded in the interface medium. The optical fiber can be fixed at just the distal end of the catheter, and may be managed within a handle that is attached to the proximal end of the catheter body, and is configured to allow rotation of the both catheter body and the optical fiber relative to the handle.