Drug eluting apparatus and method of delivering drug

A method of delivering a drug into a vessel, the method comprising:

• providing a drug eluting apparatus that comprises:
• a handle comprising:
• a balloon inflation port configured to receive an inflation fluid, and
• a drug port configured to receive a drug;
• a shaft connected to the handle, the shaft comprising:
• a balloon inflation lumen configured to receive the inflation fluid from the balloon inflation port,
• a drug lumen configured to receive the drug from the drug port, and
• a guidewire lumen configured to receive a guidewire and allow the guidewire to extend out of a distal portion of the shaft;
• a balloon attached to the distal portion of the shaft and configured to receive the inflation fluid from the balloon inflation lumen;
• and
• a drug tube defining a distal portion of the drug lumen, the drug tube having a distal portion connected to an exterior of the balloon and comprising a plurality of holes configured to allow the drug to exit the drug tube;
• inserting the distal portion of the shaft into a vessel;
• inflating the balloon by providing the inflation fluid to the balloon via the balloon inflation lumen, which causes the distal portion of the drug tube to take a deformed radially expanded state;
• and
• delivering the drug into the vessel via the drug lumen and the plurality of holes of the drug tube.

A method of delivering a drug into a vessel, the method comprising:

• providing a drug eluting apparatus that comprises:
• a handle comprising:
• a balloon inflation port configured to receive an inflation fluid, and
• a drug port configured to receive a drug;
• a shaft connected to the handle, the shaft comprising:
• a balloon inflation lumen configured to receive the inflation fluid from the balloon inflation port,
• a drug lumen configured to receive the drug from the drug port, and
• a guidewire lumen configured to receive a guidewire and allow the guidewire to extend out of a distal portion of the shaft;
• a balloon attached to the distal portion of the shaft and configured to receive the inflation fluid from the balloon inflation lumen;
• a carrier tube connected to the handle, the carrier tube being configured to allow the shaft to move therethrough, the carrier tube having a length that is greater than or equal to a length of the shaft;
• and
• a drug tube defining a distal portion of the drug lumen, the drug tube having a distal portion connected to an exterior of the balloon and comprising a plurality of holes configured to allow the drug to exit the drug tube;
• inserting the distal portion of the shaft into a vessel;
• pushing the shaft or pulling the carrier tube so that the distal portion of the drug tube and the balloon are outside of the carrier tube, which causes the distal portion of the drug tube to take a relaxed radially expanded state;
• inflating the balloon by providing the inflation fluid to the balloon via the balloon inflation tube;
• and
• delivering the drug into the vessel via the drug tube and the plurality of holes of the drug tube.

A method of delivering a drug into a vessel, the method comprising:

• providing a drug eluting apparatus that comprises:
• a handle comprising:
• a balloon inflation port configured to receive an inflation fluid, and
• a drug port configured to receive a drug;
• a shaft connected to the handle, the shaft comprising:
• a balloon inflation lumen configured to receive the inflation fluid from the balloon inflation port,
• a drug lumen configured to receive the drug from the drug port, and
• a guidewire lumen configured to receive a guidewire and allow the guidewire to extend out of a distal portion of the shaft;
• a balloon attached to the distal portion of the shaft and configured to receive the inflation fluid from the balloon inflation lumen;
• a carrier tube connected to or connectable to the handle, the carrier tube configured to allow the shaft to move therethrough, the carrier tube configured to be attached to a guiding catheter;
• and
• a drug tube defining a distal portion of the drug lumen, the drug tube having a distal portion connected to an exterior of the balloon and comprising a plurality of holes configured to allow the drug to exit the drug tube;
• wherein:
• the carrier tube has a length that is approximately equal to an axial length of the distal portion of the drug tube;
• inserting the distal portion of the shaft, the carrier tube, and the guiding catheter into a vessel;
• pushing the shaft so that the distal portion of the drug tube and the balloon are outside of the carrier tube and the guiding catheter, which causes the distal portion of the drug tube to take a relaxed radially expanded state;
• inflating the balloon by providing the inflation fluid to the balloon via the balloon inflation tube;
• and
• delivering the drug into the vessel via the drug tube and the plurality of holes of the drug tube.