Radial expansion force measurement technology
US7069794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2004 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Nov 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring force, particularly the radial expansion force or hoop force associated with a stent or other article. The apparatus includes an article engagement mechanism. The article engaging mechanism includes at least one stationary plate member; at least one rotatable force collector member which is moveable in relation to the stationary member, and a plurality of force element segments, each having a predetermined wedge shape with a proximal end and a distal end. Each segment also has a distal point which is pivotally coupled to the stationary plate member and a proximal point which is pivotally coupled to the rotatable force collector member. The segments are arranged so that the segment distal ends are disposed adjacent a central aperture into which the article is placed. The segment distal ends move to engage the article upon rotation of the rotatable member in a predetermined direction. The apparatus further includes an actuator for rotating the rotatable force collector member; and a transducer communicatively connected to the actuator for detecting force associated with rotating the rotatable member, and hence the force elements to engage the article. A met…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.