Disposable Needle Guide Holder with Sliding Frame and Rotary Assembly
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Solution Overview
Problem
Conventional needle guide holders are not designed for single use, leading to potential cross-infection between patients, lack adaptability for different needle specifications and sizes, and cannot accurately adjust needle insertion angles.
Innovation Solution
A disposable needle guide holder with a self-destructive design that uses a weakening portion to ensure single use, a sliding frame for adapting to various needle diameters, and a rotary assembly for precise angle adjustment, all made from plastic materials for ease of use and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If reusable needle guide holders are used, then cost is reduced, but cross-infection risk increases due to incomplete disinfection
Solution Approach 1:
The patent employs a disposable needle guide holder made of plastic material that is discarded after a single use. This eliminates the need for repeated sterilization processes and ensures complete prevention of cross-infection between patients, while the low cost of the disposable unit makes it economically viable compared to the cumulative sterilization costs and potential infection-related expenses of reusable holders.
2Adaptability or versatility
If multiple needle guide holders are provided for different needle specifications, then adaptability is improved, but device complexity and cost increase
Solution Approach 1:
The patent designs a universal needle guide holder with a rotatable needle guide component that can accommodate puncture needles of various specifications and insertion angles. By integrating multiple functions into a single holder - including adjustable angles and adaptable needle sizes through the rotatable mechanism - the system eliminates the need for multiple specialized holders, thereby reducing device complexity while maintaining full adaptability.
3Device complexity
If traditional needle guide holders are used, then simplicity is maintained, but needle insertion angle adjustment precision is insufficient
Solution Approach 1:
The patent incorporates a rotatable needle guide component that enables dynamic adjustment of the needle insertion angle. The rotatable structure allows the operator to precisely position the needle guide at different angles relative to the probe, providing accurate angle control while maintaining a relatively simple overall structure. The rotational mechanism offers a practical balance between structural simplicity and angular precision.
Data Source
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AI summary
A needle guide holder, which is used for a fixing medical puncture needle and a ultrasonic probe, comprises a holder body (1a, 1b) and a fixing device (2a, 2b) used in cooperation with the holder body (1a, 1b). The fixing device (2a, 2b) is mounted onto the holder body (1a, 1b) and provided with a weakening portion (23a, 23b). The needle guide holder is designed to be disposable, thereby avoiding the possibility of cross-infection caused by using the same needle guide holder on different patients. The needle guide holder can be used on one and same patient to perform a number of treatments just through the replacement of a sliding frame and without replacing the fixing device and a fixing frame. In a treatment process, the puncture needle is left in the body for a subsequent treatment, while the needle guide holder and the ultrasonic probe can be removed from the human body.