Device for inserting an insertion member, or a soft member, into body tissue
US9522228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2012 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Feb 12, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/158
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A soft cannula is inserted into tissue and affixed to skin. A cannula arrangement moves within a housing and provides the soft cannula and a guiding needle extending through the cannula to temporarily stiffen it. A drive effects an insertion movement of the cannula arrangement from a first position, where a puncturing tip is pulled back relative to a face of the housing, into a second position, where the puncturing tip protrudes beyond the face, and automatically effects a retracting movement of the guiding needle into a third position, where the puncturing tip is pulled back relative to the face. The face is formed by a base plate affixed to the housing so that when the cannula arrangement is in the second position, the face detaches from the housing. A holder element is connected to the soft cannula and couples to the base plate in the cannula arrangement's second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.