Substance delivery device
US9968745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2015 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | May 14, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A substance delivery device that includes a hypodermic needle with a tube for receiving and containing a volume of a substance. The substance delivery device includes a rod, a portion of which is of a size and shape to fit within the tube of the hypodermic needle. The rod can be displaced into and within the tube to contact and apply a force to a volume of substance contained within the tube to cause, at least in part, the volume of substance to be discharged out of the tube. The substance delivery device includes a rod displacement mechanism that applies a force to the rod to cause the rod to be displaced into and within the tube. The substance delivery device also includes a needle retraction mechanism that is configured to apply a force to the hypodermic needle to cause the hypodermic needle to retract from within a patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.