Prosthesis Delivery Shaft With Closed-Channel Wire Constraint
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Solution Overview
Problem
Existing prosthesis systems with complex connecting shaft structures for minimally invasive surgeries have high manufacturing costs due to difficult processing, leading to increased costs for the delivery device and prosthesis system.
Innovation Solution
A prosthesis system with a delivery device and prosthesis that includes a connecting shaft and a control wire, featuring a preset channel that transitions between closed and non-closed states to facilitate safe and reliable adjustment of the movable member, allowing for easy detachment and withdrawal of the control wire.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connecting shaft with a through-hole of different diameters is used to constrain and withdraw the control wire, then the control wire can be safely adjusted and withdrawn, but the structure becomes complex and manufacturing cost increases
Solution Approach 1:
The connecting shaft is divided into multiple sections: a proximal section with a first through-hole for control wire insertion, a middle section with a second through-hole for constraint during adjustment, and a distal section with a third through-hole for withdrawal. This segmentation allows each section to serve a specific function, simplifying the overall structure while maintaining reliability.
Solution Approach 2:
The connecting shaft is pre-configured with multiple through-holes at different positions and orientations before use. The first through-hole is positioned to receive the control wire, the second through-hole is positioned to constrain it during adjustment, and the third through-hole is positioned to allow withdrawal. This preliminary configuration eliminates the need for complex dynamic adjustments during surgery.
2Reliability
If a connecting shaft with a through-hole of different diameters is used to constrain and withdraw the control wire, then the control wire can be safely adjusted and withdrawn, but manufacturing cost increases
Solution Approach 1:
The connecting shaft is divided into multiple sections: a proximal section with a first through-hole for control wire insertion, a middle section with a second through-hole for constraint during adjustment, and a distal section with a third through-hole for withdrawal. This segmentation allows each section to serve a specific function, simplifying the overall structure while maintaining reliability.
Solution Approach 2:
The connecting shaft is pre-configured with multiple through-holes at different positions and orientations before use. The first through-hole is positioned to receive the control wire, the second through-hole is positioned to constrain it during adjustment, and the third through-hole is positioned to allow withdrawal. This preliminary configuration eliminates the need for complex dynamic adjustments during surgery.
3Reliability
If a complex connecting shaft structure is used to constrain the control wire, then the prosthesis can be reliably adjusted, but the delivery device manufacturing cost increases
Solution Approach 1:
The connecting shaft is divided into multiple sections: a proximal section with a first through-hole for control wire insertion, a middle section with a second through-hole for constraint during adjustment, and a distal section with a third through-hole for withdrawal. This segmentation allows each section to serve a specific function, simplifying the overall structure while maintaining reliability.
Solution Approach 2:
The connecting shaft is pre-configured with multiple through-holes at different positions and orientations before use. The first through-hole is positioned to receive the control wire, the second through-hole is positioned to constrain it during adjustment, and the third through-hole is positioned to allow withdrawal. This preliminary configuration eliminates the need for complex dynamic adjustments during surgery.
Data Source
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AI summary
Disclosed is a prosthesis system, comprising a delivery device (100) and a prosthesis. The delivery device (100) comprises a first connecting shaft (110) and a first control wire (120). The prosthesis comprises a first base (210) and a first movable member, wherein the first base (210) is detachably coupled to the first connecting shaft (110), forming a first preset channel (300) at the coupling point. The first control wire (120) is provided with a first segment (121) for independently driving the movement of the first movable member and a second segment (122), which are connected in sequence, wherein when the first connecting shaft (110) and the first base (210) are coupled, the first preset channel (300) is in a closed state, and the second segment (122) is constrained within the first preset channel (300), thereby constraining the first segment (121) at the coupling point; when the first connecting shaft (110) and the first base (210) are detached, the first preset channel (300) is in a non-closed state, and the first control wire (120) can be separated from the first preset channel (300). The prosthesis system of the present application can reduce the manufacturing cost of the prosthesis system under the condition that the delivery device (100) can safely and reliably adjust the movable member in the prosthesis.