Needle-free connection device
US10806666B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Mar 13, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/267
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle-free connection device include a casing, a connection base, a slide element and a resilient valve. The casing includes a first hollow tube having a first liquid transmission channel. The connection base is connected to the casing. The resilient valve includes a second hollow tube and a plug connected thereto, wherein the second hollow tube has a second liquid transmission channel, a third liquid transmission channel is formed between the second hollow tube and the plug, and a fourth liquid transmission channel is formed between the connection base and the plug. The first to the fourth liquid transmission channel are intercommunicated with each other. The connection base includes a third hollow tube, and a fourth liquid transmission channel is formed between the plug and the third hollow tube. The needle-free connection device provides a liquid transmission path sequentially passing through the first to the fourth liquid transmission channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.