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US 8,523,842 B2Granted
Dual-lumen catheter with contrastradiography sections to identify the lumens
AssigneeCovidien LP
InventorMasanobu Iguchi
Life of this patent
Estimating the term…
Abstract
A catheter has an outer peripheral portion (15) in the form of a tube and an internal wall (16, 26) within the tube forming a plurality of lumens (11a, 11b, 21a, 21b). Axially extending linear contrastradiography sections (17a, 17b, 27a, 27b) of radiopaque material are formed at a plurality of intersection points between the outer peripheral section and the wall, the peripheral extent (a, b) of the respective contrastradiography sections being different.
Claims20
A catheter, which comprises:
- a catheter main body including an outer peripheral section and an internal wall having a first end and a second end, the catheter main body defining first and second lumens extending along a longitudinal axis of the catheter main body, wherein the first and second ends of the internal wall each intersect the peripheral section of the catheter main body at a respective first intersection area and a respective second intersection area;
- and
- first and second contrastradiography sections disposed at least within the outer peripheral section and the first and second intersection areas, the first and second contrastradiography sections defining respective first and second different peripheral extents, and being positioned to assist in distinguishing the first lumen from the second lumen during imaging of the catheter main body.
A catheter, which comprises:
- a catheter main body including an outer peripheral section and an internal wall extending within the outer peripheral section to define first and second lumens along a longitudinal axis of the catheter main body, the internal wall having a first end and a second end, the first and second ends of the internal wall each intersecting the outer peripheral section of the catheter main body at respective first and second intersection areas;
- and
- first and second contrastradiography sections at least partially embedded within the catheter main body adjacent the first and second intersection areas and the internal wall, the first and second contrastradiography sections having different peripheral extents and being positioned to assist in distinguishing the first lumen from the second lumen during imaging of the catheter main body.
A catheter, which comprises:
- a catheter main body including an outer peripheral section and an internal wall having a first end and a second end, the catheter main body defining first and second lumens extending along a longitudinal axis of the catheter main body, wherein the first and second ends of the internal wall each intersect the peripheral section of the catheter main body at a respective first intersection area and a respective second intersection area;
- and
- a first contrastradiography section disposed at least within the outer peripheral section and a first portion of the internal wall located adjacent the first intersection area, the first contrastradiography section defining a first peripheral extent,
- a second contrastradiography section disposed at least within the outer peripheral section and a second portion of the internal wall located adjacent the second intersection area, the second contrastradiography section defining a second peripheral extent;
- wherein the first and second peripheral extents are different and are positioned and configured to assist in distinguishing the first lumen from the second lumen during imaging of the catheter main body.
2 more elements
A catheter, which comprises:
- a catheter main body including an outer peripheral section and an internal wall extending within the outer peripheral section to define first and second lumens along a longitudinal axis of the catheter main body, the internal wall having a first end and a second end, the first and second ends of the internal wall each intersecting the outer peripheral section of the catheter main body at respective first and second intersection areas;
- and
- first and second contrastradiography sections at least partially embedded within the outer peripheral section of the catheter main body and portions of the internal wall located adjacent the first and second intersection areas, the first and second contrastradiography sections having different peripheral extents and being positioned and configured to assist in distinguishing the first lumen from the second lumen during imaging of the catheter main body.
Dependencies are inferred from the claim text.