Devices, systems, and methods for accessing a body lumen

Patent metadata

Field	Value
Publication number	US-12508047-B2
Application number	US-202117232306-A
Country	US
Kind code	B2
Filing date	Apr 16, 2021
Priority date	Apr 17, 2020
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

The disclosure relates generally to the field of medical devices for accessing body lumens. In an embodiment, a catheter may include a shaft having a proximal end, a distal end, and a length along a longitudinal axis extending through the shaft. A plurality of lumens may extend along the length of the shaft. At least one reinforcing filament may extend along the length of the shaft and between at least two of the plurality of lumens.

First claim

What is claimed is:

1 . A catheter comprising:
a shaft having a proximal end, a distal end, and a length along a longitudinal axis extending therethrough; a plurality of lumens extending along at least a portion of the length of the shaft; and a braided reinforcing tubular member extending within and around the interior of at least a first lumen of the plurality of lumens; wherein a channel is defined by the wall of the braided reinforcing tubular member further and extends along a length of the braided tubular member.

2 . The catheter of claim 1 , wherein the channel is an open channel defined in the exterior of the braided reinforcing tubular member, and the shaft further comprises a slot extending longitudinally along the shaft from an external surface of the shaft radially inwardly and aligned with the open channel defined in the exterior of the wall of the braided tubular member.

3 . The catheter of claim 1 , wherein the open channel is configured to allow passage of a guidewire therethrough from within the shaft to radially outside the shaft.

4 . A catheter comprising:
a shaft having a proximal end, a distal end including a distal articulation portion, and a length along a longitudinal axis extending therethrough; an articulating wire extending along the outside of the shaft from a proximal end of the distal articulation portion to the distal end of the distal articulation portion and spaced apart from the shaft between the proximal end of the distal articulation portion and the distal end of the distal articulation portion; and a braided reinforcing tubular member extending about and coupled to the shaft proximal to the proximal end of the distal articulation portion of the shaft wherein the braided reinforcing tubular member is a single filament, and wherein the braided reinforcing tubular member is removable by unraveling the filament.

5 . The catheter of claim 4 , wherein the braided reinforcing tubular member increases rigidity of the shaft when in a delivery configuration and is unraveled by proximally translating a proximal end of the single filament.

6 . The catheter of claim 4 , wherein the braided reinforcing tubular member is adhered to the shaft proximal to an articulation portion of the shaft.

Assignees

• Boston Scient Scimed Inc

Inventors

• Schaubhut Andrew J
• Christakis Laura E
• Wales Ryan V
• Smith Paul
• Storbeck Gene T

Classifications

• A61B2017/345

  for introduction into a natural body opening · CPC title

• A61B2017/320052

  Guides for cutting instruments · CPC title

• A61M25/0026

  Multi-lumen catheters with stationary elements (catheter assemblies comprising a catheter in combination with a guide tube, sheath or sleeve A61M2025/0681; catheters comprising telescoping coaxial elements A61M2025/0175) · CPC title

• A61B2017/00323

  Cables or rods · CPC title

• A61M25/005

  with embedded materials for reinforcement, e.g. wires, coils, braids · CPC title