Rotatable Needle Guides for Sonographic Probe Angle Control
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Solution Overview
Problem
Existing sonography devices lack efficient and adjustable needle guides that can accurately guide needles into specific angles and depths within a patient's body for precise percutaneous procedures.
Innovation Solution
The development of rotatable and adjustable needle guides that can be mounted to a sonography device probe, featuring multiple channels at varying angles, allowing for selective rotation and attachment to ensure precise needle insertion angles and depths, and include stable mounting mechanisms to prevent slippage during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed needle guide is used, then the device structure is simple, but the needle insertion angle cannot be adjusted to different positions
Solution Approach 1:
The needle guide is made rotatable relative to the probe, transforming from a fixed structure to a dynamic one. The guide can be rotated to different angular positions and locked in place, enabling multiple needle insertion angles while maintaining structural simplicity through a single rotating component with multiple positioned channels.
Solution Approach 2:
The needle guide is divided into multiple independent channels, each oriented at a different predetermined angle. This segmentation allows selective use of different channels for different insertion angles, providing versatility without requiring a completely different guide for each angle.
2Adaptability or versatility
If multiple needle channels are provided at different angles, then various insertion angles are achievable, but the device complexity increases
Solution Approach 1:
A single needle guide structure serves multiple functions by incorporating several channels at different angles within one component. This multi-functional design allows the same guide to accommodate various needle insertion angles, eliminating the need for multiple separate guides and reducing overall device complexity.
Solution Approach 2:
Multiple needle channels that would traditionally require separate guides are merged into a single integrated needle guide component. This combination provides multiple insertion angle capabilities while minimizing the number of parts and simplifying the device structure.
3Adaptability or versatility
If the needle guide is rotatable to different positions, then adjustable needle insertion angles are achieved, but the guide may slip during use
Solution Approach 1:
The needle guide is equipped with a locking mechanism that secures the guide at selected angular positions before needle insertion begins. This preliminary locking action prevents unintended movement or slippage during the procedure, ensuring stable positioning while maintaining rotatability for angle adjustment.
Solution Approach 2:
A locking mechanism acts as an intermediary between the rotatable needle guide and the probe, providing stable connection at selected positions. This intermediary component enables both rotation for positioning and stability during use by mechanically securing the guide at the desired angle.
Data Source
AI summary
A medical device guide system includes a probe configured for imaging portions of a patient's body, a first guide connector extending from a first surface of the probe, the first guide connector including a first mounting surface, and a guide removably mountable to the first guide connector. The guide may include a first cavity shaped to receive the first mounting surface and a first channel disposed on a top surface of the guide opposite the first cavity, the first channel angled at a first angle with respect to a longitudinal axis of the probe and configured to guide a medical device to a targeted depth in the patient's body.