LOCKING LOOP CATHETER
First Claim
1. A catheter having a proximal end and a distal end comprising:
- an elongate tube having a proximal end and a distal end and defining at least one lumen extending therebetween;
an exit port defined by the tube and extending through the tube adjacent the distal end of the tube;
an entry port extending through the tube and creating fluid communication between an exterior of the tube and the at least one lumen of the tube;
a filament extending within the elongate tube and extending out of the exit port such that a portion of the filament is exposed to the exterior of the tube and further extending into the entry port;
wherein the filament includes a free end disposed at the proximal end, the free end being adjustable proximally and distally, wherein proximal retraction of the filament puts the filament in tension and creates a looped end portion of the tube where the exit port and entry port are urged toward each other, and releasing the filament from its proximal retraction allows the tube to return to a non-looped shape and the exit and entry ports to move away from each other;
wherein the filament is coupled to the tube to prevent the filament and tube from being separated in response to retraction of the tube.
3 Assignments
0 Petitions
Accused Products
Abstract
A drainage catheter system includes an elongate tube with proximal and distal ends and a filament extending the tube that is adjustable to create a closed loop at the distal end of the tube when the filament is retracted relative to the tube. The filament is coupled to the tube such that the filament and tube are prevented from being separated in the event that the tube and filament are cut at the proximal end at the conclusion of a drainage procedure. The filament can be attached to the tube near the distal end. The filament can be attached to the tube along its length. The catheter system can also include a retraction mechanism having a first fixed position and second fixed position, where the second fixed position retracts the filament proximally relative to the first fixed position by actuating a plunger.
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Citations
20 Claims
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1. A catheter having a proximal end and a distal end comprising:
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an elongate tube having a proximal end and a distal end and defining at least one lumen extending therebetween; an exit port defined by the tube and extending through the tube adjacent the distal end of the tube; an entry port extending through the tube and creating fluid communication between an exterior of the tube and the at least one lumen of the tube; a filament extending within the elongate tube and extending out of the exit port such that a portion of the filament is exposed to the exterior of the tube and further extending into the entry port; wherein the filament includes a free end disposed at the proximal end, the free end being adjustable proximally and distally, wherein proximal retraction of the filament puts the filament in tension and creates a looped end portion of the tube where the exit port and entry port are urged toward each other, and releasing the filament from its proximal retraction allows the tube to return to a non-looped shape and the exit and entry ports to move away from each other; wherein the filament is coupled to the tube to prevent the filament and tube from being separated in response to retraction of the tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A catheter system comprising:
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an elongate tube having a proximal end and a distal end and defining at least one lumen extending therebetween; an exit port defined by the tube and extending through the tube adjacent the distal end of the tube; an entry port extending through the tube and creating fluid communication between an exterior of the tube and the at least one lumen of the tube; a filament extending within the elongate tube and extending out of the exit port such that a portion of the filament is exposed to the exterior of the tube and further extending into the entry port and proximally through the tube; wherein the filament includes a fixed proximal end and an adjustable free end disposed at an end opposite the fixed proximal end, the free end being adjustable proximally and distally, wherein proximal retraction of the free end puts the filament in tension and creates a looped end portion of the tube where the exit port and entry port are urged toward each other, and releasing the filament from its proximal retraction allows the tube to return to a non-looped shape and the exit and entry ports to move away from each other; wherein the free end of the filament is fixedly coupled to a retraction mechanism, the retraction mechanism moveable between a first fixed position and a second fixed position; wherein the second fixed position places the filament in tension and is disposed proximally relative to the first fixed position. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A catheter system comprising:
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an elongate tube having a proximal end and a distal end and defining at least one lumen extending therebetween; an exit port defined by the tube and extending through the tube adjacent the distal end of the tube; an entry port extending through the tube and creating fluid communication between an exterior of the tube and the at least one lumen of the tube; a filament extending within the elongate tube and extending out of the exit port such that a portion of the filament is exposed to the exterior of the tube and further extending into the entry port; wherein the filament includes a free end disposed at the proximal end, the free end being adjustable proximally and distally, wherein proximal retraction of the filament puts the filament in tension and creates a looped end portion of the tube where the exit port and entry port are urged toward each other, and releasing the filament from its proximal retraction allows the tube to return to a non-looped shape and the exit and entry ports to move away from each other; wherein the filament is coupled to the tube to prevent the filament and tube from being separated in response to retraction of the tube; and a retraction mechanism coupled to the free end of the filament for adjusting the filament proximally and distally, the retraction mechanism moveable between a first fixed position and a second fixed position; wherein the second fixed position places the filament in tension and is disposed proximally relative to the first fixed position.
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Specification