Endoscope with keyed orientation feature
Disclosed herein is a medical device including a camera including a movable member including an outer surface with a longitudinally-extending cross-sectional geometry configured to complement a longitudinally-extending cross-sectional geometry of a surface of a lumen in an elongate tube housing the movable member so as to prevent rotation of the movable member relative to the elongate tube. The device allows the operator to maintain visual orientation as the movable member is translated proximally and distally relative to the elongate tube.
1 . A medical device, comprising:
an elongate tube comprising a lumen extending therethrough, the elongate tube defining a longitudinal axis therethrough, the lumen comprising a surface with a first longitudinally-extending cross-sectional geometry;
a movable member extending longitudinally at least partially within the lumen, the movable member comprising a second lumen extending therethrough, the movable member comprising an outer surface with a second longitudinally-extending cross-sectional geometry; and
a camera extending longitudinally at least partially within the second lumen; and
wherein the first longitudinally-extending cross-sectional geometry and the second longitudinally-extending cross-sectional geometry are configured to prevent the movable member from rotating about the longitudinal axis relative to the elongate tube as the movable member is translated distally or proximally,
wherein at least one of the first longitudinally-extending cross-sectional geometry and the second longitudinally-extending cross-sectional geometry comprises a protruding feature, and
wherein the second lumen has a shape that at least partially complements a shape of the protruding feature.
2 . The medical device of claim 1 , wherein the second longitudinally-extending cross-sectional geometry is configured to complement the first longitudinally-extending cross-sectional geometry of the surface of the lumen.
3 . The medical device of claim 1 , wherein the second longitudinally-extending cross-sectional geometry is non-axisymmetric.
4 . The medical device of claim 1 , wherein the first longitudinally-extending cross-sectional geometry is non-axisymmetric.
5 . The medical device of claim 1 , wherein the first longitudinally-extending cross-sectional geometry comprises the protruding feature, and wherein the protruding feature is oriented in a radially inward direction.
6 . The medical device of claim 5 , wherein the second longitudinally-extending cross-sectional geometry comprises a groove configured to complement the protruding feature of the first longitudinally-extending cross-sectional geometry.
7 . The medical device of claim 1 , wherein the movable member comprises one or more additional lumens extending therethrough configured to house a deflection cable, a suction device, an irrigation device, an insufflation device, a camera lens washing device, or a light-emitting diode, or to pass accessories.
8 . The medical device of claim 1 , wherein the second lumen comprises a curved shape that partially follows a curvature of the protruding feature.
9 . A medical device, comprising:
an elongate tube comprising a lumen extending therethrough, the elongate tube defining a longitudinal axis therethrough, the lumen comprising a surface with a first longitudinally-extending cross-sectional geometry;
a movable member extending longitudinally at least partially within the lumen, the movable member comprising a second lumen extending therethrough, the movable member comprising an outer surface with a second longitudinally-extending cross-sectional geometry; and
a camera extending longitudinally at least partially within the second lumen; and
wherein the first longitudinally-extending cross-sectional geometry and the second longitudinally-extending cross-sectional geometry are configured to prevent the movable member from rotating about the longitudinal axis relative to the elongate tube as the movable member is translated distally or proximally,
wherein the first longitudinally-extending cross-sectional geometry comprises a protruding feature, and wherein the protruding feature is oriented in a radially inward direction.
10 . The medical device of claim 9 , wherein the second longitudinally-extending cross-sectional geometry comprises a groove configured to complement the protruding feature of the first longitudinally-extending cross-sectional geometry.
11 . The medical device of claim 9 , wherein the second lumen has a shape that at least partially complements a shape of the protruding feature.
12 . The medical device of claim 11 , wherein the second lumen comprises a curved shape that partially follows a curvature of the protruding feature.
13 . The medical device of claim 9 , wherein the movable member comprises one or more additional lumens extending therethrough configured to house a deflection cable, a suction device, an irrigation device, an insufflation device, a camera lens washing device, or a light-emitting diode, or to pass accessories.
14 . A medical device, comprising:
an elongate tube comprising a lumen extending therethrough, the elongate tube defining a longitudinal axis therethrough, the lumen comprising a surface with a first longitudinally-extending cross-sectional geometry;
a movable member extending longitudinally at least partially within the lumen, the movable member comprising a second lumen extending therethrough, the movable member comprising an outer surface with a second longitudinally-extending cross-sectional geometry; and
a camera extending longitudinally at least partially within the second lumen; and
wherein the first longitudinally-extending cross-sectional geometry and the second longitudinally-extending cross-sectional geometry are configured to prevent the movable member from rotating about the longitudinal axis relative to the elongate tube as the movable member is translated distally or proximally,
wherein the first longitudinally-extending cross-sectional geometry comprises a protruding feature, and wherein the protruding feature is oriented in a radially inward direction,
wherein the second longitudinally-extending cross-sectional geometry comprises a groove configured to complement the protruding feature of the first longitudinally-extending cross-sectional geometry, and
wherein the second lumen has a shape that at least partially complements a shape of the protruding feature.
15 . The medical device of claim 14 , wherein the second lumen comprises a curved shape that partially follows a curvature of the protruding feature.