T-Shaped Intraosseous Needle Removal Device With Protective Sleeve
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Solution Overview
Problem
Current devices for removing intraosseous needles are not designed for safe and efficient removal, leading to potential tissue damage, discomfort for patients, and risk of accidental puncture for medical professionals, as they require complex alignment and multiple rotations, which can cause damage and are not specifically adapted for removal procedures.
Innovation Solution
A device with a T-shaped traction handle and extendible protective sleeve, featuring a Luer-Lock connector and made of polypropylene, allows for simultaneous traction and rotation movements to facilitate easy needle removal while providing complete protection against accidental punctures, minimizing tissue damage and ensuring biosafety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a syringe is used for needle removal, then the device is readily available, but alignment maintenance is complex and tissue damage risk increases
Solution Approach 1:
The device is divided into distinct functional segments: a connector portion that interfaces with the needle hub, a shaft portion that provides structural support and alignment, and a removal portion with grip features. This segmentation allows each part to be optimized for its specific function while maintaining overall device availability and ease of manufacture.
Solution Approach 2:
The shaft portion acts as an intermediary element between the connector and the removal portion, maintaining proper alignment throughout the removal process. This intermediate structure ensures that the needle remains properly positioned during extraction, reducing tissue damage risk while using readily available components.
2Productivity
If manual rotation and traction is used for removal, then the needle can be extracted, but the process causes discomfort and potential tissue damage
Solution Approach 1:
The device incorporates dynamic features including a rotatable shaft portion that can rotate relative to the connector, and a removable portion that can be selectively engaged or disengaged. This dynamic design allows for controlled rotation and traction movements that reduce friction and tissue damage during needle extraction.
Solution Approach 2:
The removal process is facilitated by periodic rotational movements rather than continuous force application. The device allows for controlled incremental rotation followed by traction, reducing the risk of tissue damage while maintaining removal efficiency.
3Ease of operation
If a non-specialized device is used for removal, then the procedure can be performed, but biosafety risk increases due to accidental puncture potential
Solution Approach 1:
The device features a nested structure where the needle is housed within a protective sheath or connector housing. During removal, the needle remains enclosed within the device structure, preventing accidental punctures to healthcare providers while maintaining full removal capability. The needle hub is nested within the connector portion, and the entire assembly is contained within the device housing.
Data Source
Figure 1
Figure 2A~2B
Figure 2C~3A
AI summary
The present invention concerns, but is not limited to, a new medical device suitable for the removal of an intraosseous needle implanted in a bone of a patient. The device comprises a traction handle (3) formed by a gripping part (4) coupled to a shank (5), which are disposed in a substantially T-shaped arrangement. In addition, a distal end of the shank (5) comprises a connector (6) complementary to a connector disposed on the needle (1). In this way, an ergonomic device is obtained for generating the traction and rotation forces necessary to remove the intraosseous needle (1) from the patient's bone. The device also contains biosafety elements for carrying out this removal technique, such as a protective sleeve (54) for protecting against accidental punctures and a protector (55) that protects the patient's skin surface during the removal process.