Catheter calibration device
US4823167A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1986 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Dec 16, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/8507
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration device to be used in calibrating a separate catheter of the type having a catheter tube through which light can be propagated to an end portion of the catheter tube, includes a calibration element defining a cavity extending along a cavity axis to an open end that has a size and shape adapted to receive the end portion of the catheter tube for calibration purposes. A body of resiliently deformable material with which to hold the catheter tube and thereby retain the end portion within the cavity is retained in generally fixed proximity with the open end of the cavity by a retainer member, and a channel-defining portion of the body of resiliently deformable material defines a longitudinally-opening channel generally aligned with the cavity axis that has a size and shape adapted to receive the catheter tube in an interference fit. The channel receives the catheter tube by movement of the catheter tube into the channel radially after the end portion of the catheter tube has been placed into the cavity, and it inhibits movement of the catheter tube axially to thereby inhibit movement of the end portion within the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.