Needle length determination and calibration for insertion guidance system
US9492097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2012 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | May 23, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3954
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. In yet another embodiment, systems and methods for determining the length of the needle to be guided by the guidance system are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.