Temperature compensation flow-limiting device and elastomeric infusion system
US11529462B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2019 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Dec 19, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3372
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A temperature compensation flow-limiting device and an elastomeric infusion system are provided. The temperature compensation flow-limiting device is disposed in the infusion tube of the elastomeric infusion system to improve instability, caused by changes to temperature, of the flow velocity of the fluid inside the infusion tube to keep the flow velocity of the fluid stable. The temperature compensation flow-limiting device includes an inner layer and an outer layer; the coefficient of thermal expansion (CTE) of the inner layer is greater than that of the outer layer. When the temperature of the fluid inside the infusion tube increases, the inner layer expands and the internal diameter decreases as it is limited by the outer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.