Multi-lumen catheter with separate distal tips
First Claim
1. A multi-lumen catheter, comprising:
- a catheter body enclosing at least two separate lumens from a proximal end to a dividing point;
a first tip section enclosing a first lumen with a first length distal to the dividing point; and
a second tip section enclosing a second lumen with a second length longer than the first length distal to the dividing point, the second tip section including, a proximal portion with a first cross-sectional area extending from the dividing point, a distal portion with a second cross-sectional area greater than the first cross-sectional area, and a transition region, connecting the proximal portion to the distal portion, the transition region including an aperture.
1 Assignment
0 Petitions
Accused Products
Abstract
A multi-lumen catheter defined by at least two separate tip sections distal to a dividing point includes strategic placement of openings in the tip sections to facilitate fluid flow and minimize typical problems associated with catheters. In a multi-lumen catheter having tip sections with a releasably joined or splittable region, the bond strength between the tip sections is varied along their length such that an increasing separation force is required to separate the tip sections from one another distal to the dividing point. Delivery of a multi-lumen catheter is improved with respect to both sheathed and non-sheathed delivery methods, in which a friction reducing structure is provided on either the catheter, delivery sheath or both to provide a buffer for a sheathed delivery and in which a unique guidewire aperture or additional lumen is provided in at least one of the tip sections for a non-sheathed delivery.
-
Citations
48 Claims
-
1. A multi-lumen catheter, comprising:
-
a catheter body enclosing at least two separate lumens from a proximal end to a dividing point; a first tip section enclosing a first lumen with a first length distal to the dividing point; and a second tip section enclosing a second lumen with a second length longer than the first length distal to the dividing point, the second tip section including, a proximal portion with a first cross-sectional area extending from the dividing point, a distal portion with a second cross-sectional area greater than the first cross-sectional area, and a transition region, connecting the proximal portion to the distal portion, the transition region including an aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
-
-
37. A multi-lumen catheter, comprising:
-
a catheter body enclosing at least two separate lumens from a proximal end to a dividing point; a first tip section enclosing a first lumen with a first length distal to the dividing point; and a second tip section enclosing a second lumen with a second length longer than the first length distal to the dividing point, the second tip section including a proximal portion with a first cross-sectional area extending from the dividing point, a distal portion with a second cross-sectional area greater than the first cross-sectional area, and a transition region, connecting the proximal portion to the distal portion and including a transition shoulder with a positive slope from the proximal portion to the distal portion the transition region including an aperture. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
-
Specification