ENDOSCOPY IMAGING SYSTEM INCLUDING IN-LINE DUAL CAMERA 3D ENDOSCOPY CANNULA ASSEMBLY
An endoscopy cannula assembly is described herein. The endoscopy cannula assembly includes a cannula extending along a longitudinal axis and a 3D imaging system positioned within the cannula. The 3D imaging system includes a pair of imaging modules orientated in an opposing mirrored relationship along the longitudinal axis. Each imaging module includes a camera sensor orientated along a first optical axis and an optical engine configured to receive light rays through an opening defined along a sidewall of the cannula along a second optical axis and direct the received light rays along the first optical axis towards the camera sensor.
1 . An endoscopy cannula assembly, comprising:
a cannula extending along a longitudinal axis; and
a 3-dimensional imaging system positioned within the cannula and including:
a pair of imaging modules orientated in an opposing mirrored relationship along the longitudinal axis, each imaging module including:
a camera sensor orientated along a first optical axis; and
an optical engine configured to receive light rays through an opening defined along a sidewall of the cannula along a second optical axis and direct the received light rays along the first optical axis towards the camera sensor.
2 . The endoscopy cannula assembly of claim 1 , wherein the optical engine includes:
a folding prism spaced a distance from the camera sensor along the first optical axis and configured to direct the light rays received along the second optical axis towards the camera sensor.
3 . The endoscopy cannula assembly of claim 2 , wherein the optical engine includes:
a first plano aspheric lens adjacent an entrance face of the folding prism defined along the second optical axis; and
a second plano aspheric lens adjacent an exit face of the folding prism defined along the first optical axis.
4 . The endoscopy cannula assembly of claim 3 , wherein the optical engine includes:
a flat surface of the first plano aspheric lens cemented to the entrance face of the folding prism; and
a flat surface of the second plano aspheric lens cemented to the exit face of the folding prism.
5 . The endoscopy cannula assembly of claim 3 , wherein the optical engine includes:
a doublet positioned between the second plano aspheric lens and the camera sensor.
6 . The endoscopy cannula assembly of claim 5 , wherein the optical engine includes:
the doublet including a bi-concave aspheric lens cemented to a plano convex lens positioned between the bi-concave aspheric lens and the camera sensor.
7 . The endoscopy cannula assembly of claim 6 , wherein a flat surface of the plano convex lens is orientated towards the camera sensor.
8 . The endoscopy cannula assembly of claim 5 , wherein the doublet includes a substantially rectangular body extending along the first optical axis.
9 . The endoscopy cannula assembly of claim 1 , wherein the pair of imaging modules includes a first imaging module axially aligned with a second imaging module.
10 . The endoscopy cannula assembly of claim 1 , wherein the pair of imaging modules includes a first imaging module obliquely aligned with a second imaging module.
11 . An endoscopic imaging apparatus comprising:
a handle subsystem including a control handle configured for attachment and actuation of endoscopic tools;
a shaft extending outwardly from the handle subsystem between a proximal end opposite a distal end; and
an endoscopic tool including:
a trocar piercing tip coupled to the distal end of the shaft and movable between an open position and a closed position; and
an endoscopy cannula assembly positioned within the shaft and extendable through the trocar piercing tip, the endoscopy cannula assembly including:
a cannula extending along a longitudinal axis; and
a 3-dimensional imaging system positioned within the cannula and including:
a pair of imaging modules orientated in an opposing mirrored relationship along the longitudinal axis, each imaging module including:
a camera sensor orientated along a first optical axis; and
an optical engine configured to receive light rays through an opening defined along a sidewall of the cannula along a second optical axis and direct the received light rays along the first optical axis towards the camera sensor.
12 . The endoscopic imaging apparatus of claim 11 , wherein the optical engine includes:
a folding prism spaced a distance from the camera sensor along the first optical axis and configured to direct the light rays received along the second optical axis towards the camera sensor.
13 . The endoscopic imaging apparatus of claim 12 , wherein the optical engine includes:
a first plano aspheric lens adjacent an entrance face of the folding prism defined along the second optical axis; and
a second plano aspheric lens adjacent an exit face of the folding prism defined along the first optical axis.
14 . The endoscopic imaging apparatus of claim 13 , wherein the optical engine includes:
a flat surface of the first plano aspheric lens cemented to the entrance face of the folding prism; and
a flat surface of the second plano aspheric lens cemented to the exit face of the folding prism.
15 . The endoscopic imaging apparatus of claim 13 , wherein the optical engine includes:
a doublet positioned between the second plano aspheric lens and the camera sensor.
16 . The endoscopic imaging apparatus of claim 15 , wherein the optical engine includes:
the doublet including a bi-concave aspheric lens cemented to a plano convex lens positioned between the bi-concave aspheric lens and the camera sensor.
17 . The endoscopic imaging apparatus of claim 16 , wherein a flat surface of the plano convex lens is orientated towards the camera sensor.
18 . The endoscopic imaging apparatus of claim 15 , wherein the doublet includes a substantially rectangular body extending along the first optical axis.
19 . The endoscopic imaging apparatus of claim 11 , wherein the pair of imaging modules includes a first imaging module axially aligned with a second imaging module.
20 . The endoscopic imaging apparatus of claim 11 , wherein the pair of imaging modules includes a first imaging module obliquely aligned with a second imaging module.