Tube Anti-Extraction Case With Internal Retaining Column
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Solution Overview
Problem
Existing tube extraction prevention devices fail to adequately prevent accidental or intentional removal of intravenous tubes due to patient movement or carelessness, posing a risk of needle dislodgment and potential accidents.
Innovation Solution
A tube anti-extraction device with a case featuring a sidewall with holes and a resistance member that resists tensile forces, attached to the wrist or ankle using a perforated band, preventing the tube from being pulled out, even with strong forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the IV needle is only fixed to the arm with a fixing tape, then the device complexity is low, but the reliability of preventing tube extraction is insufficient
Solution Approach 1:
The fixing structure is divided into two independent parts: a simple fixing tape for initial attachment and a protective case for enhanced security. The case can be attached to the wrist or ankle independently of the tape fixation, creating segmented protection layers that address different aspects of tube security.
Solution Approach 2:
The protective case acts as an intermediary barrier between the tube and external forces. When attached to the wrist or ankle near the puncture site, it serves as a mediator that absorbs and distributes tensile forces, preventing direct transmission to the IV needle and catheter connection.
2Reliability
If a protective case is attached to the wrist or ankle near the puncture site, then the reliability of tube retention is improved, but the ease of operation is reduced
Solution Approach 1:
The protective case is designed with multi-functionality to address different operational needs. It can be attached to either the wrist or ankle depending on the puncture site location, and works in conjunction with the fixing tape rather than replacing it. This universal design allows flexible application across different clinical scenarios.
3Ease of operation
If the tube is allowed to have slack for patient movement, then the ease of operation is improved, but the risk of accidental extraction increases
Solution Approach 1:
The protective case is attached to the wrist or ankle in advance, establishing a fixed reference point near the puncture site before patient movement occurs. This preliminary positioning creates a stable anchor that limits the effective slack length of the tube, preventing excessive movement while still allowing normal range of motion.
Data Source
AI summary
A tube anti-extraction device includes a case, a resistance member provided within the case, and a tool for attaching the case near a puncture site. The case includes openable and closable upper and lower half bodies, and a removal-preventing or retaining column is erected inside. A tube that has entered the case through the hole used as an inlet of the case is wound around the column one and a half turns, and exits to the outside through the hole used as an outlet. After the tube is attached, the upper and lower half bodies are closed and coupled by an engaging portion. Even when the tube is extracted from the outside, the tube wound around the column resists this, and the tube is prevented from being extracted or removed and retained by the device.