Catheter with multiple working channels

Patent metadata

Field	Value
Publication number	US-2024123184-A1
Application number	US-202218277472-A
Country	US
Kind code	A1
Filing date	Mar 14, 2022
Priority date	Mar 18, 2021
Publication date	Apr 18, 2024
Grant date	—

Abstract

A catheter includes a shaft portion defining a non-circular transverse cross-section. The shaft portion includes an exterior sidewall and an interior sidewall defining two or more asymmetrical working channels.

First claim

1 . A catheter comprising a shaft portion defining a non-circular transverse cross-section, the shaft portion including an exterior sidewall and an interior sidewall defining two or more asymmetrical working channels therein.

2 . The catheter of claim 1 , wherein the non-circular transverse cross-section defines an elliptical transverse cross-section.

3 . The catheter of claim 2 , wherein the elliptical cross-section of the shaft portion includes a major axis and a minor axis which cross at a center of the elliptical transverse cross-section, the major axis and the minor axis defining a first and second upper quadrant and a first and second lower quadrant of the elliptical transverse cross-section.

4 . The catheter of claim 3 , wherein a thickness of the exterior sidewall and a thickness of the interior sidewall is equal along the major axis.

5 . The catheter of claim 3 , wherein a thickness of the exterior sidewall is generally uniform throughout and a thickness of the interior sidewall is generally non-uniform.

6 . The catheter of claim 3 , wherein the interior sidewall includes a first end portion, a second end portion opposite the first end portion and body portion positioned therebetween, the first end portion connected to a first portion of the exterior sidewall and the second end portion connected to a second portion of the exterior sidewall.

7 . The catheter of claim 6 , wherein the body portion of the inner sidewall is curved and offset from the minor axis.

8 . The catheter of claim 3 , wherein the two or more working channels include a first working channel including a circular transverse cross-section and a second working channel including a non-circular transverse cross-section.

9 . The catheter of claim 3 , wherein the two or more working channels include a first working channel including a circular transverse cross-section and a second working channel including a reniform transverse cross-section.

10 . The catheter of claim 8 , wherein the first and second working channels are each centered on the lateral major axis and not centered on the vertical minor axis.

11 . The catheter of claim 8 , wherein at least a portion of the first working channel is positioned on the central portion of the elliptical transverse cross-section.

12 . The catheter of claim 8 , wherein at least a portion of the first working channel is positioned in each of the first and second upper quadrants and the first and second lower quadrants of the elliptical transverse cross-section.

13 . The catheter of claim 8 , further comprising at least a first lumen and a second lumen extending therethrough.

14 . The catheter of claim 13 , wherein the second working channel, the first lumen and the second lumen are positioned only in the second upper and lower quadrants of the elliptical transverse cross-section.

15 . A catheter comprising a handle portion on a proximal end and a shaft portion on a distal end thereof, the shaft portion including an exterior wall and an interior sidewall, the exterior sidewall defining an elliptical transverse cross-section and the interior sidewall defining a first and second working channel within the exterior wall, the first working channel defining a generally circular transverse cross-section and the second working channel defining a generally reniform transverse cross-section.

16 . An electromagnetic navigation system for navigating through a luminal network of a patient's lung, the system comprising:
a computing device, a monitoring device, an electromagnetic board, a tracking device, and a catheter including a shaft portion defining a non-circular transverse cross-section, the shaft portion including an exterior sidewall and an interior sidewall defining two or more asymmetrical working channels therein, and optionally at least one of a bronchoscope or surgical instrument.

Assignees

• Covidien Lp

Inventors

• Berthiaume Tina M
• Knutson Nathan J
• Komp John W

Classifications

• A61M25/0032 Primary

  characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts · CPC title

• A61M2025/0037

  characterized by lumina being arranged side-by-side · CPC title

• A61M2210/1039

  Lungs · CPC title

• A61M25/0026 Primary

  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