Adjustable Needle Positioning Device for Vascular Access
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Solution Overview
Problem
Current catheter-based interventions face complications such as groin hematomas, retroperitoneal hematomas, groin pseudoaneurysms, and iatrogenic arteriovenous fistulas due to inadequate vascular access techniques, which can be painful and potentially fatal, and require surgical intervention in many cases.
Innovation Solution
A fully adjustable and detachable needle positioning device that uses imaging devices like ultrasound for precise and safe access to tissues and organs, allowing for adjustable needle placement in terms of angle and depth, facilitating accurate vascular access and reducing the risk of complications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional anatomic landmark-based femoral access is used, then the procedure is simple and quick, but the precision of needle placement is insufficient leading to complications
Solution Approach 1:
The patent introduces an intermediary device (needle positioning device with imaging integration) that mediates between the operator and the target vessel. This device provides real-time imaging guidance and mechanical constraints to ensure precise needle placement while maintaining procedural simplicity through standardized interfaces and automated positioning mechanisms.
Solution Approach 2:
The access device integrates multiple functions into a single unified system: imaging capability, needle positioning, angle control, and depth measurement. This multi-functional integration eliminates the need for separate devices for each function, reducing overall system complexity while enhancing precision through coordinated operation of all components.
2Reliability
If adjustable needle positioning device is used, then the precision and safety of vascular access is improved, but the device complexity increases
Solution Approach 1:
The needle positioning device incorporates dynamic adjustment capabilities that allow real-time modification of needle angle, depth, and position during the procedure. The device includes movable components with controlled degrees of freedom, enabling adaptive positioning while maintaining stability through mechanical constraints and imaging feedback to enhance safety without excessive complexity.
Solution Approach 2:
The device integrates imaging feedback mechanisms that provide real-time visualization of needle position relative to the target vessel. This feedback loop allows continuous monitoring and adjustment of needle parameters, ensuring safe and precise vascular access while the automated nature of the feedback system prevents the complexity from becoming unmanageable.
3Adaptability or versatility
If detachable needle guide system is used, then the adaptability for different procedures is improved, but the ease of operation decreases
Solution Approach 1:
The needle guide system is segmented into detachable modular components that can be configured for different procedural requirements. Each module serves a specific function and can be attached or removed as needed, providing versatility for various access scenarios. The segmentation is designed with standardized connection interfaces to maintain ease of assembly and disassembly, preventing operational complexity from increasing despite the modular design.
Data Source
AI summary
Embodiments of the disclosure include a tissue and/or access device that allows for adjustability of placement of a needle for accessing a blood vessel of an individual in need thereof, particularly when used with an imaging device. The adjustability originates from both angle of the needle for insertion into the body of the individual and longitudinal placement of the needle on the body of the individual. In specific embodiments, a needle guide through which the needle traverses is detachable.