Rotatable Cassette Hose Connector for Ophthalmic Surgery
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Solution Overview
Problem
The rigid connection between the hose and cassette in ophthalmic surgical systems makes handling difficult during operation, increases the risk of kinking during storage and transport, and restricts flexibility, affecting operational reliability and sterility.
Innovation Solution
A rotatable connection unit with a plug connector and connecting piece that allows the hose to be secured against loosening while enabling rotation, ensuring sterility and improving handling and storage by allowing flexible positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hose is firmly connected to the cassette by welding or gluing, then the connection is secured against loosening and sterility is improved, but handling during operation becomes difficult and the hose is prone to kinking during storage or transport
Solution Approach 1:
The connection unit allows the hose to rotate relative to the cassette housing around a longitudinal axis while maintaining a secure mechanical connection. This dynamic capability enables the hose to be positioned flexibly during operation and storage without compromising connection security, eliminating the kinking problem while preserving reliable attachment.
2Reliability
If the hose is firmly connected to the cassette, then connection security is improved, but the hose becomes prone to kinking during storage or transport
Solution Approach 1:
The rotatable connection unit allows the hose to rotate freely around its longitudinal axis relative to the cassette housing. This dynamic rotation capability prevents the hose from being forced into rigid positions that cause kinking during storage or transport, while the mechanical connection remains secure against loosening.
3Reliability
If the hose is firmly connected to the cassette, then connection security is improved, but flexibility and adaptability during operation are reduced
Solution Approach 1:
The connection unit enables the hose to rotate relative to the cassette housing while maintaining a secure mechanical attachment. This dynamic rotation provides adaptability in hose positioning during operation, allowing the hose to be oriented in different positions without compromising connection security or requiring complex handling procedures.
Data Source
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AI summary
The invention relates to a cassette (4) for a console (1) of an ophthalmic surgical system (100) for the treatment of an eye (6), wherein the cassette (4) is designed for insertion into a cassette receiving area (56) of the console (1) and comprises at least one fluid pump (10, 20, 30, 40) for pumping a treatment fluid, a hose for connecting to a handpiece (5) and a connecting unit (62) for mechanically connecting a cassette-side end of the hose (61) to a cassette housing (60) of the cassette (4) in a manner secured against loosening.According to the invention, the connecting unit (62) has a connecting nozzle (59) arranged on the cassette housing (60), which has a through-opening (64) for the treatment fluid, and a connector (63) formed at the cassette-side end of the hose (61), which also has a through-opening (65) for the treatment fluid, wherein the connector (63) is held in a fluid-tight manner relative to the connecting nozzle (59) in the connected state and rotatably about a longitudinal axis (66) of the through-opening (64, 65).