Surgical imaging systems

A surgical imaging system for imaging a surgical field within an access port during a medical procedure, the system comprising:

• a surgical access port comprising a port wall and an elongate body having a corridor extending therethrough and configured to couple with anatomy of a patient, the corridor having a diameter selected to accommodate at least one hand operated surgical tool, wherein a distal end of the elongate body is configured such that exposed internal tissue is directly visible through the corridor from an external location, and the port wall comprising a light-diffusing surface texture, whereby reflectance of the port wall is decreasable;
• an external optical imaging device for externally imaging internal tissue through said surgical access port, said external optical imaging device comprising:
• a longitudinal housing,
• an optical imaging assembly provided within said longitudinal housing, and
• an imaging zoom camera interfaced with said longitudinal housing for detecting images collected by said optical imaging assembly,
• said external optical imaging device being movable with respect to, and spaced away from, said surgical port by a working distance to facilitate easy access by a surgeon to a surgical space located between said surgical access port and said external optical imaging device,
• wherein said optical imaging assembly and said imaging zoom camera are configured such that, when said external optical imaging device is positioned external to said surgical access port, a field of view associated with images collected by said imaging zoom camera is approximately equal to the diameter of the corridor of the surgical access port,
• wherein the imaging zoom camera, operable in response to a processor, is configured to multiplex acquisition of hyperspectral imaging data, white-light images, and video images at different wavelength bands,
• wherein the different wavelength bands comprise a plurality of distinct wavelength bands, the plurality of distinct wavelength bands comprising at least one of a plurality of non-overlapping individual wavelength bands, a plurality of overlapping individual wavelength bands, and a combination of non-overlapping individual wavelength bands and overlapping individual wavelength bands,
• wherein the different wavelength bands comprise a plurality of distinct wavelength bands, the plurality of distinct wavelength bands comprising centers of approximately 400 nm, approximately 500 nm, approximately 600 nm, and approximately 700 nm, wherein each distinct wavelength band comprises a bandwidth of approximately 10 nm,
• wherein an illumination beam and a reflected beam, of the external optical imaging device, are collinear in relation to one another, and wherein the illumination beam is steerable by a beam-steering mechanism, whereby illumination is delivered to the bottom of the surgical access port, and
• wherein a lens assembly, of the external optical imaging device, comprises a length, whereby intrusion to a user's field of view is minimized and access to a surgical space is facilitated.