Method and apparatus for insufflating a cavity in the body of a human or animal subject
US11504487B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2017 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Nov 19, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/75
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An insufflator for insufflating a body cavity includes a compressed air vessel and a flow control valve for delivering insufflating air to the cavity through a first trocar. A discharge control valve at an outlet port of a second trocar exhausts insufflating air from the cavity. A pressure sensor on the first trocar monitors cavity pressure, and a microcontroller operates the flow control valve for maintaining a predefined working pressure in the cavity. A foot operated switch is operable by a surgeon for opening and closing the discharge control valve. When the pressure in the cavity drops below the predefined working pressure, the flow control valve increases the insufflating air to the cavity, thereby increasing the insufflating air flow through the cavity for removing undesirable gases. The apparatus and insufflator may also be adapted for removing smoke, nitrogen or other undesirable gases during both cauterisation and cryogenic procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.