US 12,124,022 B2
Endoscope and method of use
Akos Toth, Cupertino, CA (US); Eugene Skalnyi, Hillsborough, CA (US); John H. Shadduck, Menlo Park, CA (US); and Csaba Truckai, Saratoga, CA (US)
Assigned to Meditrina, Inc., San Jose, CA (US)
Filed by Meditrina, Inc., San Jose, CA (US)
Filed on Sep. 10, 2021, as Appl. No. 17/447,380.
Application 17/447,380 is a division of application No. 16/552,931, filed on Aug. 27, 2019.
Claims priority of provisional application 62/723,393, filed on Aug. 27, 2018.
Prior Publication US 2021/0401275 A1, Dec. 30, 2021
Int. Cl. A61B 1/05 (2006.01); A61B 1/00 (2006.01); A61B 1/06 (2006.01); G02B 23/24 (2006.01); G06T 3/60 (2024.01)
CPC G02B 23/2484 (2013.01) [A61B 1/00042 (2022.02); A61B 1/00096 (2013.01); A61B 1/00097 (2022.02); A61B 1/00105 (2013.01); A61B 1/00174 (2013.01); A61B 1/05 (2013.01); A61B 1/0684 (2013.01); G02B 23/2423 (2013.01); G02B 23/2476 (2013.01); G06T 3/60 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An endoscope electrically coupled to an image display and configured for use with an elongated tool, the endoscope comprising:
an elongated shaft having a shaft assembly located at a proximal end of the elongated shaft, the elongated shaft having an image sensor and a lens facing distally at a distal end of the elongated shaft;
a handle coupled to the shaft assembly, wherein the shaft assembly is rotatable in the handle;
a working channel sleeve extending through the elongated shaft, the working channel sleeve having a distal end;
a working channel extending through the elongated shaft and having a proximal channel portion and a distal channel portion, the proximal channel portion having a central axis and a first cross-section, the distal channel portion having a second reduced cross-section in a first position, wherein the distal channel portion is expandable such that advancement of the elongated tool therein expands the distal channel portion into a second position such that the proximal channel portion and the distal channel portion are concentric around the central axis, wherein the distal channel portion in the second position permits advancement of a portion of the elongated tool out of the distal channel portion;
a flexible hinge extending along the distal channel portion; and
a first accelerometer coupled to the elongated shaft such that rotation of the elongated shaft rotates the first accelerometer and the elongated shaft, wherein the first accelerometer is configured to provide signals to determine rotation of the image sensor relative to a longitudinal axis of the elongated shaft, wherein the signals permit rotation of an image on the image display.