Medical systems, devices, and related methods for wound therapy

A medical device, comprising:

• a cap assembly configured to be attached about a shaft of an endoscope such that a working channel of the endoscope is accessible through an opening of the cap assembly at a distal end of the shaft, the cap assembly including a chamber that extends distally from the distal end and is disposed in alignment with a working channel of the shaft;
• and
• a porous body received within the chamber, the chamber configured to compress the porous body relative to the shaft;
• wherein the porous body is movable relative to the cap assembly from a first position inside the chamber and in a compressed configuration to a second position outside of the chamber and in an expanded configuration, wherein the chamber includes an extended wall that defines a cross-sectional dimension of the chamber that minimizes compression of the porous body received within the chamber.

A medical system comprising:

• a handle;
• a shaft extending distally from the handle, the shaft including one or more channels extending between the handle and a distal end of the shaft, wherein at least one of the one or more channels includes a working channel;
• a cap assembly coupled to the distal end of the shaft, the cap assembly including an opening that is positioned in alignment with at least one of the one or more channels at the distal end of the shaft, and a chamber that extends distally from the opening, wherein the chamber is positioned in alignment with the working channel;
• and
• a porous body movably disposed within the chamber, the porous body is configured to transition from a compressed configuration when disposed inside the chamber to an expanded configuration upon extending outwardly from the chamber, wherein either (1) the chamber is at least partially transparent such that the porous body disposed inside the chamber is visible through the chamber or (2) the chamber includes a window such that the porous body disposed inside the chamber is visible through the window by an imaging device.