Dual Occluding Body Implant Twisting Fixation
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Solution Overview
Problem
Existing implants for occluding passages in the circulatory system, such as those in the heart, often require multiple occluding bodies to be placed and opened separately during surgery, which can be cumbersome and require more skill and experience for precise placement, and may not adequately close passages due to size limitations.
Innovation Solution
A dual occluding body implant design featuring thin elongate members with two occluding bodies that can be simultaneously deployed and fixed using a twisting motion, allowing for a single movement to form fixation structures on both sides of the passage, combining the advantages of single and double occluding body implants without their disadvantages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two occluding bodies are placed and opened separately during surgery, then each occluding body can be securely positioned, but the procedure becomes more cumbersome and requires more skill and experience
Solution Approach 1:
The patent combines two separate occluding bodies into a single integrated implant device with a unified delivery mechanism. The first and second occluding bodies are connected through a common wire structure that allows both to be deployed simultaneously through a single surgical insertion, eliminating the need for separate placement procedures while maintaining secure positioning of each occluding body.
Solution Approach 2:
The implant is divided into multiple functional segments including a first occluding body, a second occluding body, and connecting wire structures. Each segment can be independently positioned and secured while being deployed through a single procedural action, allowing complex positioning to be achieved through modular design rather than multiple separate operations.
2Ease of operation
If a single occluding body is used, then the placement process is simplified, but the occluding body may not be big enough to securely close the passage
Solution Approach 1:
The patent merges the functionality of multiple occluding bodies into a single integrated device that can simultaneously address multiple aspects of passage closure. The combined structure allows the implant to provide sufficient total occluding area while maintaining the procedural simplicity of single-device insertion, resolving the contradiction between device size and placement simplicity.
3Reliability
If two holders are brought together to deploy the occluding body, then the passage is closed, but the elongate members must execute a twisting motion that requires precise control
Solution Approach 1:
The patent employs dynamic wire structures that can automatically transition from a compressed delivery state to an expanded occluding state through elastic deformation. The wire members are designed to twist and untwist in response to mechanical compression and release, providing automatic deployment without requiring precise manual control of twisting motions, thereby reducing operational complexity while ensuring reliable passage closure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dual occluding body implant simplifies the placement process by allowing both occluding bodies to be opened and fixed in a single movement, enhancing the ability to securely close passages with reduced skill and experience requirements, and ensuring a fluid-tight seal on both sides of the septum.
Implementation Method 1
the distance between the holders being reduceable in a manner to cause the elongate members to execute a twisting motion relative to the axis to yield a plurality of generally radially extending loops forming at least one fixation structure
Data Source
AI summary
An implant for occluding a passage in a circulatory system of a human body comprises elongate members (1) which can be twisted into fixation structures and at least two occluding bodies (2, 2′) being attached to the elongate members (1) and being arranged at a distance to each other. This implant combines the advantages of a single occluding body implant with the advantages of a double occluding body implant.