Over dilation
US9055936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2013 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Nov 26, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device, system and method for dilating a patient during a minimally invasive surgical procedure is disclosed. A surgical dilation system includes a dilator having an outer tubular member and an inner tubular member sized to be movably received within an inside diameter of the outer tubular member. The outer tubular member includes a vertical slot running through a side of the outer tubular member. The inner tubular member has an upper portion and a lower portion. The retractor has a proximal end including at least one mounting member protruding outwardly from a side surface of the retractor and a distal end including at least one fanned blade protruding outwardly from the side surface. When the inner tubular member is oriented in a first position the vertical slot is in a closed state, when the inner tubular member is oriented in a second position the mounting member is permitted to travel downwardly a predetermined distance in the vertical slot, and when the inner tubular member is positioned in a third state the mounting member is permitted to freely travel through the vertical slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.