Adjustable ratchet retractor support apparatus
US6808493B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 28, 2002 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Jan 29, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B90/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An adjustable ratchet retractor support apparatus includes in one aspect a rotatable locking mount having first and second surfaces and an axis of rotation perpendicular to the surfaces. First and second rotatable pivot members are disposed respectively on the first and second surfaces for rotation around the axis of rotation. Each of the pivot members include ratchet teeth. First and second curved arm members are mounted respectively on and associated respectively with the first and second pivot members. Each of the arm members is rotatable about a respective axis of rotation perpendicular to the axis of rotation of the locking mount. Each arm member has mounted thereon a ratchet pawl for engagement with the ratchet teeth of the associated pivot member. First and second rotatable clamps are disposed respectively on the first and second pivot members for restraining rotation of the pivot members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.