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US 9,314,592 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.
Claims15
A catheter comprising:
- a catheter main body having a first and second end, the catheter main body including an outer peripheral section and an internal wall intersecting the outer peripheral section to define first and second lumens extending along a longitudinal axis defined by the catheter main body;
- and
- first and second contrastradiography sections disposed at least within the outer peripheral section, at the intersection of the outer peripheral section and the internal wall, and the first and second contrastradiography sections defining respective first and second different peripheral extents.
A method of using a catheter, the method comprising:
- placing a catheter in a blood vessel of a patient, the catheter including an internal wall and an outer peripheral section, the intersection of the internal wall and the outer peripheral section defining a first lumen and a second lumen;
- and
- distinguishing the first lumen from the second lumen based on differing peripheral extents of respective first and second contrastradiography sections disposed at least within the outer peripheral section, at an intersection of the outer peripheral section and the internal wall.
Dependencies are inferred from the claim text.