SURGICAL VISUALIZATION SYSTEMS

• US 20150085095A1
• Filed: 09/19/2014
• Published: 03/26/2015
• Est. Priority Date: 09/20/2013
• Status: Active Grant

• Current Assignee: CamPlex, Inc.
• Original Assignee: CamPlex, Inc.
• Inventors: Tesar, John
• Granted Patent: US 10,028,651 B2
• Time in Patent Office: Days
• US Class Current: 348/77
• CPC Class Codes: A61B 1/00045 Display arrangement
• CPC Class Codes: A61B 1/00154 using guiding arrangements for insertion
• CPC Class Codes: A61B 1/005 Flexible endoscopes
• CPC Class Codes: A61B 1/051 Details of CCD assembly
• CPC Class Codes: A61B 1/0676 at distal tip of an endoscope
• CPC Class Codes: A61B 1/07 using light-conductive means, e.g. optical fibres
• CPC Class Codes: A61B 1/3132 for laparoscopy
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments catheters A61B2017/22072
• CPC Class Codes: A61B 2034/2057 Details of tracking cameras
• CPC Class Codes: A61B 2090/306 using optical fibres
• CPC Class Codes: A61B 2090/371 with simultaneous use of two cameras
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 90/361 Image-producing devices, e.g. surgical cameras
• CPC Class Codes: A61B 90/50 Supports for surgical instruments, e.g. articulated arms
• CPC Class Codes: G02B 17/08 Catadioptric systems used in non-imaging applications G02B19/00
• CPC Class Codes: G02B 21/0012 Surgical microscopes counterbalanced structures for surgical microscopes G02B7/001
• CPC Class Codes: G02B 21/20 Binocular arrangements
• CPC Class Codes: G02B 21/361 Optical details, e.g. image relay to the camera or image sensor G02B21/364 takes precedence; illumination details G02B21/06 and subgroups
• CPC Class Codes: G02B 21/362 : Mechanical details, e.g. mountings for the camera or image sensor, housings G02B21/364 takes precedence
• CPC Class Codes: G02B 21/367 : providing an output produced by processing a plurality of individual source images, e.g. image tiling, montage, composite images, depth sectioning, image comparison
• CPC Class Codes: G02B 21/368 : details of associated display arrangements, e.g. mounting of LCD monitor
• CPC Class Codes: G02B 27/022 : Viewing apparatus G02B27/04, G02B27/06, G02B27/08 take precedence
• CPC Class Codes: G02B 27/026 : and a display device, e.g. CRT, LCD, for adding markings or signs or to enhance the contrast of the viewed object

Abstract

A medical apparatus is described for providing visualization of a surgical site. The medical apparatus includes an electronic display disposed within a display housing, the electronic display configured to produce a two-dimensional image. The medical apparatus includes a display optical system disposed within the display housing, the display optical system comprising a plurality of lens elements disposed along an optical path. The display optical system is configured to receive the two-dimensional image from the electronic display, produce a beam with a cross-section that remains substantially constant along the optical path, and produce a collimated beam exiting the opening in the display housing. The medical apparatus can also include an auxiliary video camera configured to provide an oblique view of a patient on the electronic display without requiring a surgeon to adjust their viewing angle through oculars viewing the electronic display.

Claims

1. A medical apparatus comprising:

a display housing;

an opening in the display housing;

an electronic display disposed within the display housing, the electronic display comprising a plurality of pixels configured to produce a two-dimensional image; and

a display optical system disposed within the display housing, the display optical system comprising a plurality of lens elements disposed along an optical path,

wherein the display optical system is configured to;

receive the two-dimensional image from the electronic display;

produce a beam with a cross-section that remains substantially constant along the optical path; and

produce a collimated beam exiting the opening in the display housing.

2. The medical apparatus of claim 1, wherein the display optical system further comprises an optical redirection element configured to fold the optical path.

3. The medical apparatus of claim 2, wherein the optical redirection element comprises a mirror.

4. The medical apparatus of claim 2, wherein the optical redirection element comprises a prism.

5. The medical apparatus of claim 2, wherein the display optical system is configured to direct light received from the electronic display to the opening in the display housing while reducing stray light.

6. The medical apparatus of claim 1, wherein the display optical system further comprises a baffle configured to reduce stray light.

7. The medical apparatus of claim 6, wherein the display optical system comprises less than or equal to four baffles.

8. The medical apparatus of claim 7, wherein the display optical system comprises less than or equal to four mirrors.

9. The medical apparatus of claim 8, wherein a first baffle is positioned between the electronic display and a first baffle along the optical path, the first mirror positioned prior to the plurality of lens elements along the optical path from the display to the opening.

10. The medical apparatus of claim 8, wherein at least three baffles are positioned prior to the plurality of lens elements along the optical path from the display to the opening.

11. The medical apparatus of claim 8, wherein at least two mirrors are positioned prior to the plurality of lens elements along the optical path from the display to the opening.

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26. A medical apparatus comprising:

a viewing assembly comprising a housing and an ocular, the ocular configured to provide a view an electronic display disposed in the housing;

an optical assembly disposed on the viewing assembly, the optical assembly configured to provide a surgical microscope view of a surgical site, the optical assembly comprising;

an auxiliary video camera; and

a gimbal configured to couple the auxiliary video camera to the viewing assembly and configured to change an orientation of the auxiliary video camera relative to the viewing assembly; and

an image processing system in communication with the optical assembly and the electronic display, the image processing system comprising at least one physical processor,

wherein the image processing system is configured to;

receive video images acquired by the auxiliary video camera,

provide output video images based on the received video images, and

present the output video images on the electronic display so that the output video images are viewable through the ocular,

wherein the gimbal is configured to adjust a pitch of the auxiliary video camera between a first position and a second position, wherein the auxiliary video camera has a first viewing angle perpendicular to a floor in the first position and a second viewing angle that is within about 10 degrees of parallel to the floor in the second position.

29. The medical apparatus of claim 26, wherein the gimbal is configured to adjust a pitch of the auxiliary video camera between the first position and a third position, wherein the auxiliary video camera has a third viewing angle in the third position that is less than or equal to 180 degrees from the first viewing angle.

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36. A medical apparatus comprising:

a camera having a field of view that can be configured to include a surgical site, wherein the camera is configured to provide a surgical microscope view of the surgical site;

a binocular viewing assembly comprising a housing and a plurality of oculars, the plurality of oculars configured to provide views of at least one display disposed in the housing;

an image processing system configured to receive images acquired by the camera and present the output video images on the at least one display; and

a movement control system configured to move the camera relative to the binocular viewing assembly, the movement control system comprising a control member operatively coupled to the movement control system to translate the camera relative to the binocular viewing assembly along at least a first axis and a second axis and to rotate the camera relative to the binocular viewing assembly.

37. The medical apparatus of claim 36, wherein the movement control system comprises a translation system comprising a moveable platform to which the camera is attached, the moveable platform being positioned between the binocular viewing assembly and the camera and being moveable relative to the binocular viewing assembly along at least a first axis and a second axis.

39. The medical apparatus of claim 36, wherein the movement control system comprises a pitch-yaw adjustment system comprising an electromechanical device to which the camera is attached, the pitch-yaw adjustment system configured to rotate the camera relative to the binocular viewing assembly around an axis parallel to the first axis and rotate the camera around an axis parallel to the second axis.

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47. A medical apparatus comprising:

a display housing; and

a plurality of electronic displays disposed within the display housing, each of the plurality of electronic displays comprising a plurality of pixels configured to produce a two-dimensional image,

wherein the plurality of electronic displays are configured to present superimposed images in a field of view of a person'"'"'s eye.

49. The medical apparatus of claim 47, wherein at least one of the plurality of electronic displays comprises a transmissive display panel.

50. The medical apparatus of claim 47, wherein the superimposed images comprise a video of a first portion of a surgery site that is superimposed on a video of a second portion of the surgery site, the first portion contained within the second portion.

51. The medical apparatus of claim 50, wherein the video of the first portion is magnified relative to the video of the second portion.

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