Belt Clip Assembly With Independent Rotation For Infusion Devices
Solution Overview
Problem
Traditional belt clips for portable medical infusion devices can lead to accidental displacement or breakage, affecting the efficacy of insulin delivery in diabetic patients, as they allow free rotation which results in tangled or displaced tubing and potential cannula displacement.
Innovation Solution
A belt clip assembly with a device retainer that is rotatable about a clip pin independently of a tab pin, featuring a clip with a detent and a tab that can rotate, allowing for finite displacement to accommodate the unique requirements of infusion devices, minimizing the risk of breakage and displacement while securing the infusion set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a traditional belt clip is used to hold the infusion device, then the device can be securely held in position, but the belt clip allows free rotation which results in tangled or displaced tubing and potential cannula displacement
Solution Approach 1:
The device retainer is designed to rotate about the clip pin axis, transforming the static belt clip into a dynamic system that can adapt to movement while maintaining controlled motion. This rotation capability allows the retainer to absorb displacement forces without transmitting them to the tubing and cannula, resolving the contradiction between securing the device and preventing tubing displacement.
Solution Approach 2:
The belt clip assembly is segmented into distinct functional components: the clip body, the device retainer, and the tab. The retainer can rotate independently about the clip pin, while the tab rotates about the tab pin. This segmentation allows each component to perform its specific function - the rotating retainer absorbs movement while the tab maintains positioning, preventing both device displacement and tubing tangling.
2Reliability
If the device retainer is made rotatable about the clip pin, then the risk of breakage is minimized, but the complexity of the mechanism increases
Solution Approach 1:
The device retainer is designed to rotate about the clip pin axis, transforming the static belt clip into a dynamic system that can adapt to movement while maintaining controlled motion. This rotation capability allows the retainer to absorb displacement forces without transmitting them to the tubing and cannula, resolving the contradiction between securing the device and preventing tubing displacement.
Solution Approach 2:
The belt clip assembly is segmented into distinct functional components: the clip body, the device retainer, and the tab. The retainer can rotate independently about the clip pin, while the tab rotates about the tab pin. This segmentation allows each component to perform its specific function - the rotating retainer absorbs movement while the tab maintains positioning, preventing both device displacement and tubing tangling.
3Adaptability or versatility
If the tab is rotatable about the tab pin, then the finite displacement of the device retainer is achieved, but the mechanism complexity increases
Solution Approach 1:
The device retainer is designed to rotate about the clip pin axis, transforming the static belt clip into a dynamic system that can adapt to movement while maintaining controlled motion. This rotation capability allows the retainer to absorb displacement forces without transmitting them to the tubing and cannula, resolving the contradiction between securing the device and preventing tubing displacement.
Solution Approach 2:
The belt clip assembly is segmented into distinct functional components: the clip body, the device retainer, and the tab. The retainer can rotate independently about the clip pin, while the tab rotates about the tab pin. This segmentation allows each component to perform its specific function - the rotating retainer absorbs movement while the tab maintains positioning, preventing both device displacement and tubing tangling.
Data Source
AI summary
A belt clip assembly is disclosed. The belt clip assembly includes a device retainer having a first retainer defined to retain a clip pin. The belt clip assembly further includes a clip coupled to the device retainer via the clip pin and the clip includes a detent and the clip is further defined to retain a tab pin. A tab is coupled to the clip via the tab pin, the tab being rotatable about the tab pin. Wherein the device retainer is initially rotatable about the clip pin independent of rotation of the tab about the tab pin. Additionally, the rotation of the device retainer about the clip pin results in a finite displacement of the device retainer.