Pleural biopsy syringe-needles
US5320110A · kind A · utility
Inventor
Key dates
| Filing date | Mar 30, 1993 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Mar 30, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B10/0275
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Pleural biopsy device for reducing the probability of effecting pneumothorax in a patient during a pleural biopsy procedure, for facilitating the cutting of sample tissues of the parietal pleura, and for aspirating and removing large quantities of fluid from the patient's body without switching needles. Proximal ends of two hollow, inner and outer needles are directly attached to the plunger and the barrel of a syringe, respectively. When properly assembled, the syringe, and the inner and the outer needles form a closed system that seals out the external air and the arrangement permits tissue collection without intermediate needle withdrawal during the procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.