Drainage catheter with retractable internal drains

A catheter for fluid drainage or irrigation, comprising:

• a primary catheter having a proximal end adapted for connection to a fluid drainage or irrigation source, a distal end adapted for insertion within a subject, a first lumen providing a first fluid flow path adapted to conduct a fluid between the proximal and distal ends, and a plurality of second lumens providing a plurality of second fluid flow paths adapted to conduct the fluid;
• wherein the first lumen and the plurality of second lumens are in fluid communication by at least one channel radially extending between the first lumen and the plurality of second lumens;
• a plurality of first drain ports located in the distal end of the primary catheter;
• a plurality of second drain ports located in the distal end of the primary catheter and longitudinally spaced apart from the plurality of first drain ports;
• a plurality of first drains in fluid communication with the plurality of second lumens, wherein the plurality of first drains are selectively retractable and deployable, and wherein the plurality of first drains are enclosed within the primary catheter in a retracted state and extend outwardly from the primary catheter through the plurality of first drain ports in a deployed state;
• and
• a plurality of second drains in fluid communication with the plurality of second lumens and longitudinally spaced apart from the plurality of first drains, wherein the plurality of second drains are selectively retractable and deployable independently of the plurality of first drains, and wherein the plurality of second drains are enclosed within the primary catheter in a retracted state and extend outwardly from the primary catheter through the plurality of second drain ports in a deployed state;
• whereby when the catheter is inserted into the subject and the plurality of first and second drains are in the deployed state, the fluid can be conducted by the proximal end of the primary catheter and the plurality of first and second drains.

A catheter for fluid drainage or irrigation, comprising:

• a primary catheter having a proximal end with an opening connectable to a drainage fluid container or a source of irrigation fluid, a distal end adapted for insertion within a subject, a first lumen providing a first fluid flow path adapted to conduct a fluid between the proximal and distal ends, and a plurality of second lumens providing a plurality of second fluid flow paths adapted to conduct the fluid, wherein the first lumen and the plurality of second lumens are in fluid communication by at least one channel between the first lumen and the plurality of second lumens;
• a plurality of drain ports located in the distal end of the primary catheter;
• a plurality of drains in fluid communication with the plurality of second lumens, wherein the plurality of drains are selectively retractable and deployable, and wherein the plurality of drains are enclosed within the primary catheter in a retracted state and extend outwardly from the primary catheter through the plurality of drain ports in a deployed state;
• a common drain connector, wherein each of the plurality of drains is connected in common to the common drain connector, wherein the common drain connector is selectively movable between a first proximal position and a second distal position within the primary catheter, and wherein in the first proximal position the plurality of drains are in the retracted state, and in the second distal position the plurality of drains are in the deployed state;
• and
• an elongated stylet having a proximal end, a distal end, and a distal end tip, wherein the stylet is adapted to be inserted in the primary catheter with the distal end tip movable between the proximal and distal ends of the primary catheter, and wherein the distal end tip is angularly rotatable and comprises at least one projection;
• wherein the common drain connector has an opening with at least one portion having a shape corresponding to the at least one projection of the distal end tip of the stylet so that the distal end tip may selectively pass through the common drain connector when the distal end tip is in a predetermined angular orientation with the at least one projection and the at least one portion of the opening aligned, and may selectively engage the common drain connector when the distal end tip is not in the predetermined angular orientation and the at least one projection and the at least one portion of the opening are not aligned;
• wherein when the distal end tip is engaged with the common drain connector, the stylet may be used to move the common drain connector to the first proximal position to place the plurality of drains in the retracted state and to the second distal position to place the plurality of drains in the deployed state, and wherein when the distal end tip passes through the common drain connector, the stylet may be used to engage the distal end of the primary catheter for insertion of the primary catheter within the subject.

A catheter for fluid drainage or irrigation, comprising:

• a primary catheter having a proximal end adapted for connection to a fluid drainage or irrigation source, a distal end adapted for insertion within a subject, a first lumen providing a first fluid flow path adapted to conduct a fluid between the proximal and distal ends, and a plurality of second lumens providing a plurality of second fluid flow paths adapted to conduct the fluid;
• wherein the first lumen and the plurality of second lumens are in fluid communication by at least two channels between the first lumen and the plurality of second lumens;
• a plurality of drain ports located in the distal end of the primary catheter;
• and
• a plurality of drains in fluid communication with the plurality of second lumens, wherein the plurality of drains are selectively retractable and deployable, and wherein the plurality of drains are enclosed within the primary catheter in a retracted state and extend outwardly from the primary catheter through the plurality of drain ports in a deployed state;
• whereby when the catheter is inserted into the subject and the plurality of drains are in the deployed state, the fluid can be conducted by the proximal end of the primary catheter and the plurality of drains.