Abstract: A medical device includes a handle including a port that includes a port lumen. The medical device includes a shaft extending from a portion of the handle. A first portion of the shaft includes a plurality of first lumens and a second lumen, and a second portion of the shaft includes only the second lumen. The second portion of the shaft is proximal to the first portion of the shaft. The medical device also includes a coupling assembly that couples a proximal end of the second portion of the shaft to the port. The coupling assembly forms a seal between the proximal end of the shaft and the port to fluidly connect the port lumen to the second lumen.

Abstract: The present disclosure includes vision preservation systems for medical devices, such as cryospray devices for use with endoscopes. Exemplary embodiments provide a distal attachment in the form of a shroud or cap that mounts to the end of a flexible endoscope. A purging fluid supply mechanism is provided along the length of the endoscope, providing a channel for purging fluid, such as gas, to communicate between the endoscope tip and an external gas supply. The cap or shroud assembly incorporates a lens clearing flow field adjustment mechanism, such as nozzles, designed to direct warm (room temperature or higher) purging fluid across a lens at the scope tip. Another flow deflection mechanism, such as a guide or nozzle, may be included with the cap to direct purging fluid at an angle away from the lens.

Abstract: The present disclosure relates generally to the field of medical devices and, in particular, the present disclosure relates to methods and devices to enhance radial spray from a catheter, such as devices with flow distribution elements for a radial spray catheter, including for radial cryospray catheters.

Abstract: The present disclosure relates to vision preservation systems for medical devices, such as cryospray devices for use with endoscopes. Exemplary embodiments provide a distal attachment in the form of a shroud or cap that mounts to the end of a flexible endoscope. A purging fluid supply mechanism is provided along the length of the endoscope, providing a channel for purging fluid, such as gas, to communicate between the endoscope tip and an external gas supply. The cap or shroud assembly incorporates a lens clearing flow field adjustment mechanism, such as nozzles, designed to direct warm (room temperature or higher) purging fluid across a lens at the scope tip. Another flow deflection mechanism, such as a guide or nozzle, may be included with the cap to direct purging fluid at an angle away from the lens. Gas, as an example, directed across and toward the lens purges moisture to avoid condensation on the lens and shears debris and bodily fluids away from the field of view.