Body canal intrusion instrumentation having bi-directional coefficient of surface friction with body tissue
US6589213B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1998 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Nov 2, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention provides novel instrumentation surface structure for catheters, guide wires and other instrumentation for entering body canals to an internal body work site. This instrumentation is structured with a bi-directional surface friction for engaging tissue within the cavities and canals that they navigate. In this manner the naturally occurring peristalatic contractions are employed to advantageously grasp and carry the instrumentation toward its desired work site, significantly decreasing the risks of puncture and significantly decreasing the surgeon's time for entry of instruments to desired work sites in such procedures as small bowel enteroscopy where an endoscope enters the esophagus to be dynamically moved to work sites in the small intestine or colonoscopy where an endoscope enters the anal canal to be moved through the entire colon and gradually into the terminal ileum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.