公开(公告)号：US20160331942A1

公开(公告)日：2016-11-17

申请号：US15218469

申请日：2016-07-25

申请人： Lake Region Manufacturing, Inc.

发明人： Chris Minar ,  Jeanne Douglas ,  Andrew Senn

IPC分类号： A61M25/09 ,  A61M25/00

CPC分类号： A61M25/09 ,  A61B1/01 ,  A61M25/0054 ,  A61M25/09033 ,  A61M2025/09083 ,  A61M2025/09133 ,  A61M2025/09141 ,  A61M2025/0915 ,  A61M2025/09166 ,  A61M2025/09175

摘要： This invention includes a highly torqueable, pushable guidewire with a relatively stiff proximal (preferably in one embodiment), stainless steel (SS) section and kink resistant nitinol medial to distal section attached to a shapeable SS, in one embodiment, (such as a SS ribbon) distal tip. The very distal SS tip will have the ability to be shaped by the end user in order to facilitate entry into the chosen vessels.

公开(公告)号：US20180256860A1

公开(公告)日：2018-09-13

申请号：US15451444

申请日：2017-03-07

申请人： Lake Region Manufacturing, Inc.

发明人： Chris Minar ,  Jeanne Douglas ,  Andrew Senn ,  Michael F. Scalise

IPC分类号： A61M25/09

CPC分类号： A61M25/09 ,  A61M2025/09083 ,  A61M2025/09133 ,  A61M2025/09141 ,  A61M2025/0915 ,  A61M2025/09158 ,  A61M2025/09175

摘要： The core element for a guidewire comprises a proximal stainless steel portion and a distal nitinol portion. The distal nitinol portion comprises a proximal segment of an at least partially linear elastic nitinol and a distal segment of a super elastic nitinol. The proximal end of a first spring coil contacts the super elastic nitinol with the first spring coil distal end being proximal the distal end of the distal segment of the super elastic nitinol. A second spring coil has a proximal portion that contacts the first spring coil distal end at a spring coil connection. Further, the second spring coil extends distally to an atraumatic tip. Extending radially from a longitudinal axis of the core wire, the first and second spring coils are spaced from and circumferentially unsupported by the distal nitinol core portion at the spring coil connection.