HF Connection Assembly With Rotary Wheel Orientation Lock
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Solution Overview
Problem
Existing surgical instruments with high-frequency connections require complex sleeve systems and time-consuming assembly processes due to the need for precise alignment and insulation, necessitating specialized knowledge to avoid contact resistance and ensure safe electrical connections.
Innovation Solution
A connection assembly featuring a rotary wheel assembly with a blocking section and orientation section allows for a modular design, enabling easy assembly and disassembly of high-frequency tools by orienting the rotary wheel axis at a predetermined angle relative to the connection axis, using a coupling process that includes a blocking section and orientation section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex sleeve system with internal cables is used for high-frequency connections, then safety distances and insulation are ensured, but assembly becomes time-consuming and requires specialized knowledge
Solution Approach 1:
The high-frequency connection is segmented into a modular plug contact unit that can be independently assembled and replaced. This separates the complex insulated cable system from the connection interface, allowing the plug contact to be a simple, tool-free component while the cable connections are pre-assembled by manufacturers with proper insulation and safety distances.
Solution Approach 2:
The complex cable connections and insulation arrangements are pre-assembled and pre-tested during manufacturing. The plug contact is designed as a ready-to-install module that requires no further assembly steps by the user, eliminating the need for specialized knowledge during instrument assembly or replacement.
2Reliability
If a complex sleeve system with internal cables is used for high-frequency connections, then safety distances and insulation are ensured, but assembly time increases
Solution Approach 1:
The connection system is divided into separate modular components: a plug contact that interfaces with the instrument base and a cable assembly with pre-established connections. This segmentation allows the plug contact to be quickly swapped without manipulating complex cable systems, dramatically reducing assembly time while maintaining safety through the pre-designed cable assembly.
Solution Approach 2:
All time-consuming assembly steps for cable connections, insulation placement, and safety distance verification are performed in advance during manufacturing. The final assembly step for the user is simply inserting the pre-prepared plug contact into the instrument base, reducing assembly time from potentially hours to seconds.
3Reliability
If plug contacts are permanently installed in the instrument base, then electrical connections are stable, but component replacement and cleaning become difficult
Solution Approach 1:
The electrical connection system is segmented into a permanent instrument base receptacle and a removable plug contact. This allows the connection interface to be separated into fixed and movable parts, enabling the plug contact to be easily removed for replacement or cleaning while the instrument base remains stable and permanently installed.
Solution Approach 2:
The connection system transitions from a static permanent installation to a dynamic configurable system where the plug contact can be easily inserted and removed. This dynamic design maintains electrical connection reliability through precise mechanical engagement while enabling quick replacement and cleaning of the removable plug contact component.
4Ease of repair
If high-quality minimally invasive medical instruments are designed to be reusable and disassemblable, then cleaning and component replacement are simplified, but ensuring safe and reliable electrical contacts becomes more difficult
Solution Approach 1:
The electrical connection system is segmented into a permanent instrument base receptacle and a removable plug contact module. This segmentation allows the instrument to be disassembled for cleaning and component replacement while maintaining reliable electrical contacts through the designed mechanical engagement features of the plug contact and receptacle interface.
Data Source
AI summary
A connection assembly for a surgical instrument or in a surgical instrument, includes an instrument base that is configured to control and/or operate a high-frequency tool of the surgical instrument, a high-frequency connection that has a connection element with a blocking section and an orientation section for the predetermined orientation of a connection axis of the high-frequency connection within the instrument base, and a rotary wheel assembly having a coupling section for coupling to the blocking section of the high-frequency connection, such that a rotary wheel axis of the rotary wheel assembly can be orientated at a predetermined angle relative to the connection axis via the coupling process. A method produces a connection assembly of this type and a surgical instrument includes such a connection assembly of this type.