Cassette for a console of an ophthalmosurgical system, and ophthalmosurgical system
A cassette for a console of an ophthalmosurgical system for treating an eye is provided. The cassette is configured for insertion into a cassette receiving region of the console and has a fluid pump configured to deliver a treatment fluid, a tube for attachment to a handpiece, and a connection unit for a mechanical connection of a cassette-side end of the tube to a cassette housing of the cassette. The connection unit includes an attachment stub arranged on the cassette housing and a plug-in connector arranged on the cassette-side end of the tube. The attachment stub has a first through opening for the treatment fluid. The plug-in connector has a second through opening for the treatment fluid. When the plug-in connector is connected to the attachment stub in a fluid-tight manner, the plug-in connector can be rotated about a longitudinal axis of the first through opening and the second through opening.
1 . A cassette for a console of an ophthalmosurgical system for treating an eye, the cassette being configured for insertion into a cassette receiving region of the console, the cassette comprising:
at least one fluid pump configured to deliver a treatment fluid;
a tube configured to attach an ophthalmosurgical handpiece of the ophthalmosurgical system; and
a connection unit for a mechanical connection, secured against detachment, of a cassette-side end of the tube to a cassette housing of the cassette,
wherein the connection unit includes an attachment stub arranged on the cassette housing and a plug-in connector arranged on the cassette-side end of the tube, wherein the attachment stub has a first through opening for the treatment fluid,
wherein the plug-in connector has a second through opening for the treatment fluid,
wherein when the plug-in connector is connected to the attachment stub, the plug-in connector is held in a fluid-tight manner with respect to the attachment stub and can rotate about a longitudinal axis defined by the first through opening and the second through opening,
wherein the plug-in connector has a plug-in opening for the attachment stub and the attachment stub has a plug-in projection for plugging the attachment stub into the plug-in opening,
wherein the first through opening and the second through opening lead into the plug-in opening or the plug-in projection, respectively, such that the first through opening and the second through opening are in line with one another,
wherein the plug-in connector has at least one latching element configured to latch to at least one corresponding latching element of the attachment stub, and
wherein the at least one latching element is arranged in a region of the plug-in opening of the plug-in connector which is at least partially not accessible in an attached state of the connection unit such that the connection unit cannot be brought into a detached state non-destructively.
2 . The cassette as claimed in claim 1 , wherein the at least one corresponding latching element of the attachment stub is a form of a latching lug, which can be latched into a circumferential latching receptacle of the plug-in connector.
3 . The cassette as claimed in claim 1 , wherein the connection unit has a sealing element.
4 . The cassette as claimed in claim 1 , wherein a portion, adjoining the plug-in connector, of the tube is angled away with respect to the longitudinal axis and forms an angle of 90° with the longitudinal axis.
5 . An ophthalmosurgical system for treating an eye, the ophthalmosurgical system comprising:
the cassette as claimed in claim 1 ;
a console including a cassette receiving region for receiving the cassette and drive means for driving the at least one fluid pump arranged in the cassette; and
an ophthalmosurgical handpiece for treating a crystalline lens of the eye,
wherein the ophthalmosurgical handpiece is fluidically couplable to the cassette.