Catheter tip-end rotation angle measurement apparatus, catheter tip-end rotation angle measurement method, and catheter tip-end rotation angle measurement program
US9918682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Oct 5, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0105
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter tip-end rotation angle calculation apparatus includes a movement restriction unit, of a tube shape, that is configured to be penetrated from a first hole to a second hole of a catheter on tip end and opposite sides, and restricts movement of the catheter to an insertion direction by causing the catheter to pass through from the first hole to the second hole, first and second rotation angle measurement units that measure first and second rotation angles of the catheter at the first and second holes, a catheter insertion length measurement unit that measures a catheter insertion length, and a catheter tip-end rotation angle calculation unit that calculates a rotation angle of the catheter tip end by using an angle difference between the first and second rotation angles, the catheter insertion length, and a distance between the first and second holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.