Endoscopic device
The present application provides an endoscopic device having at least one shaft, which has at least one portion deflectable in at least one plane, and having at least one deflection mechanism, which is configured to deflect the deflectable portion of the shaft and includes, arranged in series, at least one first connection member and at least one second connection member interacting for a deflection with the first connection member, and includes at least one flexurally slack control train, which is configured to adjust a deflection of the deflectable portion. At least the second connection member includes at least one connection member main body, which includes a passageway for guiding the control train, and at least one radial opening which is connected to the passageway and via which the control train is insertable into the passageway.
1 . An endoscopic device comprising:
at least one shaft having a deflectable portion that is deflectable in at least one plane;
at least one deflection mechanism, which is configured to deflect the deflectable portion of the shaft, the at least one deflection mechanism including a pair of first connection members and a second connection member arranged in series with each other, wherein each of the pair of first connection members has an outer surface, the outer surface being radiused and the second connection member has an inner surface, the inner surface being radiused, the second connection member interposed between the pair of first connection members wherein a first portion of the inner surface of the second connection member is nested to the outer surface of one of the pair of first connection members and a second portion of the inner surface of the second connection member is nested to the outer surface of the other one of the pair of first connection members, the pair of first connection members and the second connection member interacting with each other to generate a deflection at the deflectable portion; and
a flexurally slack control train configured to adjust a deflection of the deflectable portion, and
wherein the second connection member includes a first connection member main body, the first connection member main body having a passageway for guiding the flexurally slack control train, and a fixed radial opening which is connected to the passageway and via which the flexurally slack control train is insertable into the passageway, wherein the first connection member main body has a partially radially extending connection recess, which connects the passageway and the radial opening to each other.
2 . The endoscopic device as claimed in claim 1 , wherein the connection recess forms a curved path.
3 . The endoscopic device as claimed in claim 1 , wherein the second connection member includes a closure body, by means of which, at least in an inserted state of the flexurally slack control train, the radial opening is closable.
4 . The endoscopic device as claimed in claim 3 , wherein the closure body is connectable to the connection member main body with a force-fit and/or a form-fit engagement.
5 . The endoscopic device as claimed in claim 3 , wherein the closure body is designed as an enclosed clamping ring.
6 . The endoscopic device as claimed in claim 1 , wherein the second connection member has a second connection member main body.
7 . The endoscopic device as claimed in claim 6 , wherein the first connection member main body and the second connection member main body are separated from each other in a position relative to each other in which a radial opening of the first connection member main body and a radial opening of the second connection member main body are congruent with each other.
8 . The endoscopic device as claimed in claim 6 , wherein the first connection member main body and the second connection member main body are connected in a further position relative to each other in which a passageway of the first connection member main body and a passageway of the second connection member main body are congruent with each other.
9 . The endoscopic device as claimed in claim 6 , wherein the first connection member main body and the second connection member main body are connected to each other with force-fit and/or form-fit engagement.
10 . The endoscopic device as claimed in claim 6 , wherein the flexurally slack control train, in a mounted state, keeps the pair of first connection members and the second connection member of the deflection mechanism pretensioned and in this way presses the first connection member main body and the second connection member main body together.
11 . The endoscopic device as claimed in claim 1 , wherein the deflection mechanism comprises a second flexurally slack control train, and the second connection member has a second passageway, and a second radial opening, wherein the second flexurally slack control train is inserted in the second passageway through the second radial opening.
12 . The endoscopic device as claimed in claim 11 , wherein the second passageway and/or the second radial opening are arranged offset, in the circumferential direction of the second connection member, relative to the passageway and/or to the radial opening.
13 . An endoscope and/or endoscopic instrument having at least one endoscopic device as claimed in claim 1 .
14 . A surgical system having at least one endoscopic device as claimed in claim 1 and having at least one surgical robot.