Spring-loaded cartridge cap
US8361050B2 · kind B2 · utility
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1References
1Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Apr 25, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/14268
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Described is a spring-loaded cartridge cap for use in a drug infusion pump. The cap is ejected if it is not properly inserted into the pump. In one embodiment, the cap includes three detent pins that mate with detents in a cartridge chamber within the drug infusion pump. As the cap is inserted into the cartridge chamber of the drug infusion pump, the distal end of the cartridge compresses a coil spring within the cap. To secure the cap within the cartridge chamber, the cap is rotated such that each detent pin moves within a slot until a locking detent is engaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.