Apparatus for the study of anorectal function
US5919136A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 17, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | May 17, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for evaluating anorectal function. The device is a silicone gel-filled deformable artificial stool adapted for transanal insertion within the rectum and having an adjustable volume, and a shape consistency and size similar to a normal stool. The device has an elongate extensible silicone elastomer outer shell overlying and affixed to a coaxially mounted inflatable inner shell to create a sealed cylindrical space between the outer and inner shells. The elastic outer shell preferably incorporates a radiopaque material homogeneously dispersed within the silicon elastomer, alternatively, inner balloon affixed thereto. Radiopaque fluid is introduced into the cylindrical space to provide a means for radiographically observing the in situ deformation of the device when placed within the rectum of a subject. One end of a flexible fill tube projects within the volume enclosed and defined by the inflatable inner shell and is affixed thereto. The opposing free end of the fill tube (tail) extends away from the inner tube. A lumen within the fill tube provides leak-proof fluid communication between the interior of the inner shell and the free end of the fill tube. The free end of the f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.