公开(公告)号：WO2022031818A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/044502

申请日：2021-08-04

Applicant: BOSTON SCIENTIFIC SCIMED, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： DAYTON, Peter, L. ,  GESSLER, Raymond, D., III ,  KOMANDURI, Srinadh ,  MATTESON, Jason ,  OLSON, Mark, P.

IPC: A61M25/09 ,  A61M25/00 ,  A61B17/22 ,  A61B2017/22038 ,  A61B2017/22042 ,  A61B2017/22094 ,  A61M2025/0063 ,  A61M2025/09083 ,  A61M2025/09183 ,  A61M25/09025

Abstract: Medical devices and systems for treating a stricture, for example along the biliary and/or pancreatic tract, are disclosed. An example system may include a guidewire having a distal end and defining a lumen. A stiffening rod may be slidably disposed within the lumen. The stiffening rod may have a distal end and a distal end region disposed adjacent to the distal end. The stiffening rod may be configured to shift between a first position where the distal end of the stiffening rod is disposed proximally of the distal end of the guidewire and a second position where the distal end of the stiffening rod is disposed distally of the distal end of the guidewire.

公开(公告)号：WO2022031763A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/044420

申请日：2021-08-03

Applicant: BOSTON SCIENTIFIC SCIMED, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： GESSLER, III, Raymond D. ,  DAYTON, Peter L. ,  JODA, David B. ,  LEMKE, Kyle L. ,  KOMANDURI, Srinadh ,  GALLUCCI, JR., Vincent ,  MATTESON, Jason ,  OLSON, Mark P.

IPC: A61B17/34 ,  A61B1/00 ,  A61B1/012 ,  A61B17/3478 ,  A61B2017/003 ,  A61B2017/00323 ,  A61B2017/00991 ,  A61B2017/22038 ,  A61B2090/062 ,  A61B2090/0811 ,  A61M2210/1042 ,  A61M2210/1071 ,  A61M25/0082 ,  A61M25/0147 ,  A61M29/00

Abstract: Systems and methods for treating a stricture, for example along the biliary and/or pancreatic tract, are disclosed. An example system may include a handle (14) having a base, a first carriage (26) translatable relative to the base, and a second carriage (24) translatable relative to the base. A sheath (16) may be coupled to the first carriage. The system may also include a catheter shaft (12) having a proximal end region and a steerable distal end region. The proximal end region may be coupled to the second carriage. A needle may be releasably coupled to the handle. The needle may be configured to pass through tissue into a position along the biliary and/or pancreatic tract. The system may also include a steering member (44) having a first end coupled to the steerable distal end region of the catheter shaft and a second end disposed adjacent to the handle.

公开(公告)号：WO2022031827A2

公开(公告)日：2022-02-10

申请号：PCT/US2021/044513

申请日：2021-08-04

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： GESSLER, Raymond D., III ,  DAYTON, Peter L. ,  JODA, David B. ,  LEMKE, Kyle L. ,  MATTESON, Jason ,  OLSON, Mark P.

IPC: A61M25/09 ,  A61B17/22 ,  A61B2017/22042 ,  A61B2017/22094 ,  A61M2025/09091 ,  A61M2025/09116 ,  A61M2025/0915 ,  A61M2025/09175 ,  A61M2025/09183 ,  A61M2210/1042 ,  A61M25/09041

Abstract: A guidewire (10) for use along the biliary and/or pancreatic tract. The guidewire includes an elongate core member (12) having a proximal end region and a distal end region. A coil member (14) is disposed along the distal end region. An actuation member (20) is coupled to the coil member. The actuation member is configured to shift the coil member between a first configuration and a compressed configuration. The coil member is configured to be advanced across a biliary and/or pancreatic stricture when in the compressed configuration. A sleeve (18) is disposed over the coil member.