Gas jet fluid removal in a trocar
US8690831B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2008 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Jul 6, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/3498
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices and methods are provided for removing fluid from a surgical access device and/or from surgical instruments passed therethrough, and for preventing such fluid from accumulating. For example, in one embodiment, an exemplary device can include a body defining a working channel that is configured and sized to allow for passage of a surgical instrument therethrough. A number of seals can be disposed in the working channel so as to contact the inserted surgical instrument. One or more outlets can be oriented to direct gas, such as air or an insufflation gas, into the working channel so as to remove fluid on the seals, or other parts of the surgical access device, as well as the surgical instruments themselves. In some embodiments, constant flows of gases can be arranged to act as shields to help prevent fluid from accumulating on the surgical access device and/or surgical instruments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.