Access device for minimally invasive surgery
US7645232B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2004 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | May 2, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00359
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A retractor has a proximal portion comprising a first side portion having a first longitudinal edge and a second side portion having a second longitudinal edge. The first and second portions being movable relative to each other such that the first and second longitudinal edges can be positioned in close proximity to each other or spaced apart by a selected distance. A distal portion is coupled with the proximal portion. The distal portion has an outer surface and an inner surface partially defining a passage. The distal portion is capable of having a configuration when inserted within the patient wherein the cross-sectional area of the passage at a first location is greater than the cross-sectional area of the passage at a second location, wherein the first location is distal to the second location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.