Systems and methods for medical imaging
The present disclosure provides systems and methods for medical imaging. The system may comprise an optical adapter. The optical adapter may comprise a housing that comprises (1) a first end configured to releasably couple to a scope and (2) a second end configured to releasably couple to a camera. The optical adapter may comprise an image sensor coupled to the housing. The optical adapter may comprise an optics assembly disposed in the housing. The optics assembly may be configured to (1) receive light signals that are reflected from a target site within a subject's body and transmitted through the scope, and (2) reflect a first portion of the light signals onto the image sensor while permitting a second portion of the light signals to pass through to the camera.
1. An optical adapter comprising:
a housing comprising (1) a first portion configured to releasably couple to a scope and (2) a second portion configured to releasably couple to a camera;
an image sensor operably coupled to the housing, wherein a releasable coupling between the second portion of the housing and the camera is independent of a coupling between the image sensor and the housing; and
an optics assembly disposed in the housing, wherein the optics assembly is configured to (i) receive light signals that are reflected from a target site within a subject's body and transmitted through the scope, and (ii) reflect a first portion of the light signals onto the image sensor while permitting a second portion of the light signals to pass through to the camera so as to enable multi-wavelength imaging of the target site,
wherein the image sensor is configured to detect wavelengths greater than a predefined wavelength and the camera is configured to detect wavelengths less than the predefined wavelength, wherein the predefined wavelength is between about 700 nanometers (nm) to about 800 nm, and wherein the first portion of the light signals that is reflected onto the image sensor comprises at least one wavelength that is greater than the predefined wavelength, and the second portion of the light signals that is passed through to the camera comprises at least one wavelength that is less than the predefined wavelength.
2. The optical adapter of claim 1 , wherein the coupling between the image sensor and the housing is releasable such that the image sensor is releasably coupled to the housing.
3. The optical adapter of claim 1 , wherein the image sensor is configured to generate a first set of imaging data from the first portion of the light signals, and the camera is configured to generate a second set of imaging data from the second portion of the light signals.
4. The optical adapter of claim 3 , wherein the first set of imaging data comprises laser speckle patterns, and the second set of imaging data comprises photographic or video images.
5. The optical adapter of claim 1 , wherein the image sensor is configured for laser speckle imaging.
6. The optical adapter of claim 1 , wherein the optics assembly comprises a beam splitter.
7. The optical adapter of claim 6 , wherein the beam splitter comprises a dichroic mirror.
8. The optical adapter of claim 1 , wherein the optics assembly comprises a shortpass dichroic mirror.
9. The optical adapter of claim 1 , wherein the first portion of the light signals comprises backscattered light that is generated when the target site is illuminated with coherent laser light transmitted via the scope.
10. The optical adapter of claim 9 , wherein the scope is operably coupled to (1) a single laser source having substantially a single wavelength lying in an invisible spectrum, wherein the single laser source is configured to transmit the coherent laser light through the scope to the target site or (2) a plurality of laser sources having a plurality of different wavelengths lying in an invisible spectrum, wherein the coherent laser light from the plurality of laser sources is combined and transmitted through the scope to the target site.
11. The optical adapter of claim 1 , wherein the second portion of the light signals comprises reflected light that is generated when the target site is illuminated with white light transmitted via the scope, wherein the reflected light is in a visible spectrum.
12. The optical adapter of claim 1 , wherein the first portion of the housing is configured to releasably couple to the scope using a quick release mechanism.
13. The optical adapter of claim 12 , wherein the quick release mechanism is configured to releasably couple the optical adapter to the scope, wherein the scope is selected from a plurality of different types of scopes having a plurality of different sizes.
14. The optical adapter of claim 12 , wherein the quick release mechanism is configured to permit a user to releasably couple the first portion of the housing to the scope without use of tools.
15. The optical adapter of claim 1 , wherein the second portion of the housing is configured to releasably couple to the camera using a quick release mechanism.
16. The optical adapter of claim 15 , wherein the quick release mechanism is configured to releasably couple the optical adapter to the camera, wherein the camera is selected from a plurality of different types of cameras having a plurality of different sizes.
17. The optical adapter of claim 15 , wherein the quick release mechanism is configured to permit a user to releasably couple the second portion of the housing to the camera without use of tools.
18. The optical adapter of claim 1 , wherein the optics assembly further comprises a focusing device for the image sensor.
19. The optical adapter of claim 1 , wherein the optics assembly further comprises (i) a first focusing device for the image sensor and (ii) a second focusing device for the camera.
20. The optical adapter of claim 19 , wherein the first focusing device and the second focusing device are coupled to each other such that focusing for the image sensor and for the camera is capable of being performed concurrently.
21. The optical adapter of claim 19 , wherein the first focusing device and the second focusing device are operably coupled to each other via a gearing mechanism.
22. The optical adapter of claim 19 , wherein the first focusing device and the second focusing device are provided separately and configured to be operated independently of each other.
23. The optical adapter of claim 1 , wherein the scope is configured to (1) receive a combined light beam from an illumination source and (2) direct the combined light beam onto the target site.
24. The optical adapter of claim 1 , wherein the first portion and the second portion of the housing share a common longitudinal axis.
25. The optical adapter of claim 1 , wherein the image sensor and the camera have different optical axes.
26. The optical adapter of claim 1 , wherein an optical axis of the image sensor is substantially orthogonal to an optical axis of the camera.
27. The optical adapter of claim 1 , wherein the multi-wavelength imaging of the target site is enabled without use of a dye.
28. The optical adapter of claim 1 , wherein the predetermined wavelength is about 700 nm.
29. The optical adapter of claim 1 , wherein the predetermined wavelength is about 770 nm.
30. The optical adapter of claim 1 , wherein the predetermined wavelength is about 800 nm.