# US 12,508,047 B2 · Devices, systems, and methods for accessing a body lumen

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- Number: US 12,508,047 B2
- Document ID: US12508047B2
- Status: Granted
- Kind: B2
- Application number: 17/232,306
- Filed: 2021-04-16
- Published: 2021-10-21
- Granted: 2025-12-30
- Earliest claimed: 2020-04-17
- Assignees: Boston Scientific Scimed, Inc.
- Applicants: Boston Scientific Scimed, Inc.
- Inventors: Andrew J. Schaubhut; Laura E. Christakis; Ryan V. Wales; Paul Smith; Gene T. Storbeck
- Web page: https://patentgrep.com/patent/US12508047B2

## CPC

- A61B 17/320016: {Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes (A61B10/0233, A61B17/29, A61B17/3207 take precedence)}
- A61B 18/1492: {having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence)}
- A61M 25/005: {with embedded materials for reinforcement, e.g. wires, coils, braids}
- A61M 25/0052: {Localized reinforcement, e.g. where only a specific part of the catheter is reinforced, for rapid exchange guidewire port}
- A61B 2017/00323: {Cables or rods}
- A61B 2017/00818: {Treatment of the gastro-intestinal system}
- A61B 2017/320052: {Guides for cutting instruments}
- A61B 2017/345: {for introduction into a natural body opening}
- A61B 2018/144: {Wire}
- A61M 25/0026: {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)}
- A61M 25/0147: {with movable mechanical means, e.g. pull wires}
- A61M 2025/004: {characterized by lumina being arranged circumferentially}
- A61M 2025/0188: {having slitted or breakaway lumens}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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.

### Claim 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.

### Claim 5 (depends on 4)

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.

### Claim 6 (depends on 4)

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