Force applicator including indicator
US4066082A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1976 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | Apr 20, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2505/05
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for indicating the force applied by a tool comprises a bar arranged so as to be deflected in accordance with the force applied, a pair of spaced stops carried by the bar, a frame enclosing both stops with one end of the frame engaging one side of one stop and the opposite end of the frame extending past the other stop to define a space therebetween, and a load sensing member disposed in the latter space, whereby the deflection of the bar is converted by the two stops and the frame to a compressive force on the load-sensing member. The described load-sensing member is a photoelastic member and the described device in which it is used is a surgical spreader hand tool wherein the photoelastic member indicates to the surgeon the force applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.