Motor-Driven Insertion Tool for Cardiac Closure Device
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Solution Overview
Problem
Existing medical closure devices for septal defects lack user-friendly and reliable actuation mechanisms, leading to inconsistent placement and operation due to manual force dependency, which can result in reduced reproducibility and increased strain on the heart.
Innovation Solution
A closure device with flexible struts and a motor-driven insertion tool that allows for precise control through defined configurations, including introduction, positioning, closed, and locked states, ensuring reliable and reproducible placement and closure of septal defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual actuation mechanisms are used for closure devices, then device simplicity is maintained, but placement consistency and operational reliability deteriorate due to dependency on user skill and manual force control
Solution Approach 1:
The patent replaces manual mechanical actuation with an electrical motor system. The motor-driven insertion tool provides controlled, reproducible actuation of the closure device, eliminating variability associated with manual operation while maintaining mechanical functionality through electrical actuation.
Solution Approach 2:
The patent introduces defined configurations (introduction, positioning, closed, locked states) with specific geometric parameters. The motor system precisely controls these parameters, ensuring consistent placement and operation regardless of user skill level, thereby improving reliability through parameter standardization.
2Manufacturing precision
If motor-driven actuation is implemented, then operational precision and reproducibility are improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The insertion tool is divided into distinct functional modules: motor unit, transmission mechanism, and actuator components. This segmentation allows for specialized manufacturing of each module to high precision standards while simplifying assembly and quality control of the overall system.
Solution Approach 2:
The patent implements a motor-driven system that dynamically controls the closure device through defined configurations. The motor provides precise, programmable motion control, enabling reproducible placement precision while the modular design keeps manufacturing complexity manageable through standardized components.
3Reliability
If multiple defined configurations are implemented, then control reliability is enhanced, but device complexity and operational time increase
Solution Approach 1:
The closure device and insertion tool are pre-configured with defined states (introduction, positioning, closed, locked). The motor system automatically transitions through these pre-programmed configurations in sequence, reducing decision time and ensuring reliable progression through each necessary stage without manual intervention delays.
Solution Approach 2:
The motor-driven system provides continuous, smooth transitions between configurations without interruption or manual repositioning. This continuous actuation maintains procedural momentum and reliability while the automated sequence minimizes total insertion time compared to manual step-by-step manipulation.
Data Source
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AI summary
A medical apparatus(100; 200; 300) is provided, comprising a closure device (21; 102; 202; 302) comprising a first or distalmember or portion adapted to be placed on one side ofan opening in a wall of a bodily organ, and a second or proximal member or portion adapted to be placed on the opposite side of the opening in the wall of the bodily organ, an insertion assembly (101; 201; 301) comprising at least one actuator operatively connected to said first andsecondmembers, wherein the insertion assembly further comprises at least one motor (105; 106; 205; 306) adapted to maneuver said first and second members by actuating said at least one actuator. The invention also relates to an insertion assembly (101; 201; 301) for a closure device (21; 102; 202; 302). In one embodiment the medical apparatus comprises furthera closure device (102; 202), which comprises a locking member (130; 230) and a tubular member (121; 221) having two sets of struts (122, 123; 222; 223) being provided witha hinge section, and an insertion assembly(101; 201), which comprises a holder (140; 240) and an actuator, the holder being releasably engaged in the locking member and the actuator being releasably engaged with the tubular member.