Pressure-propelled system for body lumen
US7635346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2004 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Sep 17, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/31
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus is provided for use with a biologically-compatible-fluid pressure source, the apparatus including an elongate carrier, adapted to be inserted through a proximal opening of a body lumen, and a piston head coupled to a distal portion of the carrier. The piston head is adapted to form a pressure seal with a wall of the lumen after the carrier has been inserted into the lumen, and to be advanced distally through the body lumen in response to pressure from the fluid pressure source. The apparatus is configured to facilitate distal advancement of the piston head by facilitating passage of fluid out of the lumen from a site within the lumen distal to the piston head. The apparatus additionally includes an optical system, coupled to the carrier in a vicinity of the distal portion, the optical system having distal and proximal ends. The optical system includes an image sensor, positioned at the proximal end of the optical system; an optical member having distal and proximal ends, and shaped so as to define a lateral surface, at least a distal portion of which is curved, configured to provide omnidirectional lateral viewing; and a convex mirror, coupled to the distal end of the opt…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.