Interventional catheter, interventional device, nebulized medication delivery system, control method, nebulization method, spray system and method of treating medium

An interventional catheter, comprising:

• a catheter body, one end of the catheter body being configured as a proximal end, another end of the catheter body being configured as a distal end that is capable of extending into a bronchus, an interior of the catheter body being configured with a flow channel that is capable of transporting a fluid from the proximal end to the distal end, a mixing structure being provided at the distal end of the catheter body, wherein the fluid in the flow channel is output after being mixed by the mixing structure;
• the fluid mixing structure at least comprising a first fluid inlet, a second fluid inlet and an outlet, wherein each of the first fluid inlet and second fluid inlet is independently configured with a flow channel in the catheter body;
• a microfluidic chip being provided in the fluid mixing structure, wherein the first fluid inlet is located at a proximal end side of the microfluidic chip, the second fluid inlet is located at a lateral side of the microfluidic chip, an interior of the microfluidic chip is configured with a chip channel structure which interconnects the outlet and each of the first fluid inlet and second fluid inlet, and wherein the chip channel structure includes:
• a main channel with one end thereof being connected to the first fluid inlet at the proximal end side and another end thereof being connected to the outlet;
• a lateral channel with one end thereof being connected to the second fluid inlet at the lateral side and another end thereof being connected to the main channel;
• and
• a fluid acceleration structure and a sudden expansion section being provided in the main channel and/or the lateral channel and arranged in sequence along a flowing direction of the fluid, and the fluids in the main channel and lateral channel meeting and nebulizing in the sudden expansion section.

An interventional catheter, comprising:

• a catheter body with one end being configured as a proximal end and another end being configured as a distal end and capable of extending into a bronchus;
• a microfluidic chip being configured with a chip channel structure therein, wherein the chip channel structure includes a main channel and a lateral channel, and fluids in the main channel and the lateral channel cooperate with each other to output nebulized fluid;
• a heating module, located in the catheter body and at a distal end of the microfluidic chip, for adjusting a temperature of the nebulized fluid;
• a balloon being deformably arranged outside the catheter body.