Implant Retrieval Frame with Pivot-to-Linear Connector
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Solution Overview
Problem
Current medical implant retrieval devices often require multiple components to be manipulated during percutaneous introduction, leading to increased time and complexity for practitioners, which can result in difficulty and inefficiency in retrieving implants from body vessels.
Innovation Solution
An implant retrieval frame and assembly with a pivotally connected first and second arm, and a connector that translates pivotal movement into linear movement of a snare wire and inner catheter, allowing for precise and efficient retrieval of implants by a single practitioner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If current retrieval apparatus include multiple components to be manipulated during percutaneous introduction, then the retrieval device can perform the retrieval function, but the number of movable components causes difficulty to the practitioner and increases time required
Solution Approach 1:
The patent combines multiple retrieval components into a single integrated retrieval device with a unified handle structure. The handle integrates control mechanisms for the snare wire, inner catheter, and outer sheath into one operable unit, allowing practitioners to manipulate all components through a single handle rather than multiple separate components, thereby reducing operational difficulty and time requirements
2Productivity
If multiple components are manipulated during retrieval, then the retrieval function can be achieved, but additional time is required for retrieval
Solution Approach 1:
The integrated handle structure merges control of multiple retrieval components into a single operational unit, enabling simultaneous manipulation of the snare wire, inner catheter, and outer sheath through one handle mechanism. This integration eliminates the need for sequential manipulation of multiple components, significantly reducing the time required for implant retrieval while maintaining complete retrieval functionality
3Measurement precision
If a connector translates pivotal movement to linear movement, then precise control of retrieval device is achieved, but the device structure becomes more complex
Solution Approach 1:
The connector acts as an intermediary mechanism that translates the pivotal movement of the handle arms into linear movement of the retrieval device components. This intermediary translation mechanism provides precise control over the retrieval device's movement trajectory and positioning, enabling accurate implant engagement and retrieval while maintaining a manageable structural complexity through the use of a dedicated translation component
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 solution enables a more precise and time-efficient retrieval of medical implants by reducing the number of components to be manipulated, minimizing the likelihood of repositioning errors and streamlining the retrieval process.
Implementation Method 1
The connector is configured to cooperate with the first and second arms to translate pivotal movement of one of the first and second arms to linear movement of the retrieval device relative to the pivot point
Data Source
AI summary
An implant retrieval frame for advancement of a retrieval device to snare an implant is disclosed. The frame comprises a first arm and a second arm. The first arm has a first handle end and a first pivot end. The second arm has a second handle end and a second pivot end. The second pivot end is connected to the first pivot end to define a pivot axis about which the first and second arm pivotally move. The frame further comprises a connector to which the retrieval device is attached. The connector is configured to cooperate with the first and second arms to translate pivotal movement of one of the first and second arms to linear movement of the retrieval device relative to the pivot point.