Separable Needle Handle for Unobstructed X-Ray Placement
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Solution Overview
Problem
Existing medical needle devices face challenges in accurately inserting needles due to obstruction by handles during X-ray imaging, making precise placement difficult.
Innovation Solution
A medical needle device with a handle and needle assembly that can be separated and locked securely, featuring a locking knob and insertion hole design that allows for unobstructed viewing and stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the needle handle is kept close to the needle during insertion, then the needle can be securely held and controlled, but the handle obstructs the X-ray imaging path and prevents accurate position confirmation
Solution Approach 1:
The device is divided into two separable components: a handle part and a needle assembly. The needle assembly can be inserted into the locking knob of the handle part for secure control during insertion, then separated after insertion to eliminate obstruction during X-ray imaging. This segmentation allows the system to switch between controlled insertion and unobstructed imaging modes.
Solution Approach 2:
The handle is extracted from the immediate vicinity of the needle after insertion by allowing separation of the handle part and needle assembly. This extraction removes the obstructing element (handle) from the X-ray imaging path while maintaining the ability to securely hold and control the needle during the critical insertion phase through the locking mechanism.
2Reliability
If the needle assembly is securely fixed to the handle during insertion, then stable control is achieved, but the handle obstructs the view during X-ray imaging
Solution Approach 1:
The system transitions from a static connected state (handle fixed to needle assembly during insertion) to a dynamic separable state (handle and needle assembly can be separated). The locking knob provides secure fixation during insertion, then allows separation afterward. This dynamic capability enables the system to adapt its configuration based on the operational phase: connected for stability during insertion, separated for imaging accuracy.
3Reliability
If a locking mechanism is added to securely fix the needle assembly to the handle, then insertion stability improves, but device complexity increases
Solution Approach 1:
The needle assembly is nested within the handle part through the insertion hole and locking knob structure. The locking mechanism utilizes this nested configuration where the needle assembly fits into the handle's locking knob, creating a compact integrated structure that provides secure fixation without requiring additional external components or complex mechanisms.
Data Source
AI summary
The present invention relates to a medical needle device, and more specifically, to a medical needle device capable of drilling a fine passage in an affected part of a patient, or collecting a portion of tissue in the body of the patient. Through the present invention, a needle and a handle of the medical needle device may be separated, and thus the device may be conveniently used while not obstructing the view of the affected part when using same. Further, through the present invention, the handle and the needle are unshakably fastened, and thus may be stably used.