Friction transmission with axial loading and a radiolucent surgical needle driver
US6400979B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00902
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for performing radiological-image-guided percutaneous surgery with a system which includes a radiological image generating device for generating an image of a target anatomy of a patient, and a needle insertion mechanism disposed adjacent the image generating device and having a needle adapted to be inserted into the patient. The method includes the steps of: determining a needle trajectory of the needle by positioning the image generating device for aligning, in the image generated by the image generating device, a desired skin insertion site of the patient with a target region of the target anatomy; locking the needle in a direction of the needle trajectory; and repositioning the image generating device to obtain a lateral view of the needle trajectory for viewing an insertion depth and path of the needle during its insertion into the patient. Moreover, a motion transmission mechanism includes an output shaft and an output shaft driver which has two rotational components having respective contact faces between which the output shaft is pressed for frictional engagement therewith. The frictional engagement creates a force between the output shaft and the rotational compon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.