Prosthesis Delivery Coupling With Locked Control-Wire Routing
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Solution Overview
Problem
Existing minimally invasive surgery methods using control wires for prostheses face risks of tangling and jamming, leading to potential malfunctions during surgical procedures.
Innovation Solution
A prosthesis system with a base and a delivery device featuring a connecting shaft and a control wire, utilizing a locking mechanism to constrain the control wire within a limiting channel, allowing safe and reliable manipulation of the prosthesis during surgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the control wire passes through the prosthesis and extends back to the proximal end of the delivery device, then the prosthesis can be manipulated during surgery, but the control wire is at risk of becoming tangled or jammed
Solution Approach 1:
The control wire is divided into a first segment and a second segment that are connected to each other. The first segment extends from the proximal end through the connecting shaft to the distal end, and the second segment extends from the distal end back to the proximal end. This segmentation allows the control wire to be manipulated in a controlled manner, reducing tangling and jamming risks while maintaining ease of operation.
Solution Approach 2:
The first and second segments of the control wire are nested within the connecting shaft structure. The control wire passes through the connecting shaft in a specific configuration where it is guided and constrained, preventing it from becoming tangled or jammed during manipulation of the prosthesis.
2Device complexity
If the control wire configuration is simplified to reduce complexity, then manufacturing and operation become easier, but the risk of wire malfunction increases
Solution Approach 1:
The control wire is segmented into two distinct segments that are connected, creating a more reliable configuration that is not overly complex. This segmented design provides redundancy and controlled movement paths, improving reliability while maintaining manageable complexity for manufacturing and operation.
Data Source
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AI summary
Provided is a prosthesis system. A prosthesis comprises a base (210) and a first movable member, the base (210) being provided with a base body (211), a first coupling part (212), and a first limiting part (213); and a conveying device (100), which comprises a connecting shaft (110) and a first control wire (120) which is provided with a first segment (121) and a second segment (122). The connecting shaft (110) is provided with a shaft body (111), a second coupling part (112) and a second limiting part (113). When the first coupling part (212) and the second coupling part (112) are coupled, a first limiting channel (300) in a locked state is formed between the first limiting part (213) and the second limiting part (113). The second segment (122) is constrained at the first limiting channel (300). After the first coupling part (212) is separated from the second coupling part (112), the first limiting channel (300) in an unlocked state is formed between the first limiting part (213) and the second limiting part (113). The first control wire (120) can be separated from the first limiting channel (300). According to the prosthesis system, under the condition that the state of the prosthesis can be safely and reliably adjusted, the situation that the control wire (120) is prone to knotting and clamping as in the prior art can be avoided, such that an operation risk is reduced.