Wire guided dilator device
US4726373A · kind A · utility
23Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1985 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Sep 26, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M29/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The dilator has a central bore for a guide wire and a flexible distal portion merging continuously with an intermediate portion of constant cross-section. A proximal portion is convex in profile and merges continuously with the intermediate portion. The distal portion comprises a hemispherical tip followed by a conical section, a concave section and a convex section, respectively. The dilator is primarily for dilating oesophageal strictures when used in conjunction with an endoscope to place the guide wire and is urged along the wire using a threadably engaged insertion rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.