System for stereoscopic visualization enabling depth perception of a surgical field
Inventors
Aferzon, Joshua • Aferzon, Joseph • Nicholson, Lee M.
Assignees
Publication Number
US-11351006-B2
Publication Date
2022-06-07
Expiration Date
2037-05-26
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Abstract
Stereoscopic system including a portal component, first sensor and first cable, second sensor and second cable, first display and second display. The portal component includes an axis, a first channel and second channel extending along the axis. The first sensor is secured within the first channel at a first angle with respect to the axis and directed inwardly toward a location. The first cable extends from the first sensor. The second sensor is secured within the second channel at a second angle with respect to the axis and directed inwardly toward the location. The first angle and second angle converge at the location to define a depth of perception. The second cable extends from the second sensor. The first display structure is disposed in proximity to a left aperture of an eyeframe, and the second display structure is disposed in proximity to a right aperture of the eyeframe.
Core Innovation
The invention is a stereoscopic visualization portal system designed to enable depth perception of a surgical field by using a surgeon's natural binocular vision without requiring separate microscopes. The system integrates a portal component with two image sensors positioned at converging angles toward a location within the patient to capture stereoscopic image data. This image data is transmitted to specialized display structures positioned in proximity to the surgeon's eyes via an eyeframe, allowing formation of a stereoscopic view.
The system addresses the problem in minimally invasive surgical techniques where reduced-size portals limit the surgeon's visibility and current monoscopic camera systems do not provide depth perception critical for distinguishing anatomical structures. Existing solutions such as surgical loupes and stereoscopic microscopes are either ineffective with reduced portal openings, bulky, costly, or require surgeons to shift attention away from the surgical field, causing inefficiency and risk.
Claims Coverage
The claims include twelve inventive features centered on a stereoscopic visualization portal system integrating portal components, image sensors, display structures, and processing devices to enable depth perception during surgery.
Stereoscopic visualization portal system configuration
A stereoscopic visualization portal system comprising a portal creating a surgical channel, a portal component with channels for image sensors extending through the portal, first and second image sensors secured at converging angles directed inwardly toward a location, associated cables transmitting corresponding image data, and first and second display structures disposed near first and second eye apertures of an eyeframe presenting stereoscopic image data with an external view visible through the apertures.
Angulation of display structures with respect to eyeframe
The first display structure and the second display structure are angulated with respect to the eyeframe to optimize the surgeon's views and comfort.
Display apertures proximate to eye apertures
The system includes first and second display apertures positioned near the corresponding eye apertures to facilitate image presentation.
Magnifying apparatus in display structures
The display structures each include a magnifying apparatus and an electronic display arranged so that the magnifying apparatus is disposed in relation to the display aperture and connected to the electronic display at opposite ends.
Processing device for image data transmission
A processing device having incoming data ports connected to the image sensors' cables to receive image data and outgoing data ports to transmit the first and second image data to corresponding electronic displays.
Relative angulation between display structures
The first display structure and the second display structure are angulated relative to each other to accommodate the convergence angles of the image sensors.
Depth perception alignment with anatomical structures
The convergence location of the image sensors corresponds to a point relative to the anatomical structure, enabling stereoscopic depth perception within the surgical field.
Angle determination based on distance and sensor spacing
The first and second angles are selected based on the distance to the convergence point and the spacing between the image sensors to optimize depth perception.
Magnifying apparatus connected to display apertures
The system includes magnifying apparatuses and electronic displays disposed in relation to display apertures and connected at a defined end for image conveyance.
Mirror structures disposed near magnifying apparatus ends
The display structures each include a mirror structure positioned near the second end of the respective magnifying apparatus to reflect images toward the surgeon's eyes.
Mirror structure composition and angulation for first eye
The first mirror structure comprises two mirrors each angled at 45 degrees to a vertical plane separating them, with the second mirror positioned near the first eye aperture.
Mirror structure composition and angulation for second eye
The second mirror structure comprises two mirrors each angled at 45 degrees to a vertical plane separating them, with the second mirror positioned near the second eye aperture.
The claims collectively cover a comprehensive stereoscopic visualization system for minimally invasive surgery that includes precise portal and sensor configuration, angulated display structures with magnification and mirror systems, processing devices for image handling, and spatial arrangements ensuring effective stereoscopic depth perception of anatomical structures.
Stated Advantages
Enables stereoscopic image formation in a natural binocular fashion integrating easily into routine minimally invasive surgical procedures.
Reduces difficulty and costs associated with current visualization technologies like surgical loupes and stereoscopic microscopes.
Provides depth perception critical for distinguishing anatomical structures in minimally invasive surgeries where visibility is limited.
Allows a surgeon to see the external environment and surgical field through the same eyeframe without shifting attention, improving efficiency and safety.
Customizable angulation of display structures enhances comfort and visibility of the surgical field and surroundings.
Rigidly secures image sensors within portals to facilitate alignment and accurate stereoscopic imaging.
Documented Applications
Use in minimally invasive surgical techniques requiring small incisions where visualization through reduced portal openings is limited.
Surgical procedures benefiting from depth perception for distinguishing small, sensitive anatomical tissues such as blood vessels, nerves, ligaments, and muscles.
Integration into minimally invasive portals to provide stereoscopic visualization of a surgical field during operation.
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