Device for paracentesis and thoracentesis
US5725506A · kind A · utility
82Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jan 5, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for removing fluid from the body of a patient, such as in paracentesis and thoracentesis, is provided. Fluid may be withdrawn via a needle assembly including a sharp introducing needle and a retractile blunt needle. The needle assembly may be withdrawn after the introduction of a drainage catheter, and a valve with multiple sealing points prevents body fluids from leaking from the device through the needle space and prevents communication between the atmosphere and the patient through the needle space. A second drainage port may be used after the needle is withdrawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.