Vibration assisted needle device
US6702761B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jun 11, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00196
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vibration assisted needle device is disclosed for use in medical procedures, such as needle aspiration biopsies. Reciprocation of the needle, such as a biopsy needle, eases the advance of the needle through tissue, penetration of the site of interest and the collection of sample at a site of interest. The device comprises a housing defining a chamber, a needle support external to the chamber for supporting a needle and a mechanism in the chamber for causing reciprocatory motion of the needle support. The needle support is preferably external to the housing. A syringe support may be connected to the housing for supporting a syringe. The reciprocatory mechanism may comprise means for converting rotational motion into reciprocating motion, such as a bearing or a rotor with a circumferential, angled groove on its surface, coupled to the needle support. The bearing or the rotor may be driven by a rotational motor, preferably located outside of the housing, or by a hydraulically driven turbine within the housing. Alternatively, the reciprocatory mechanism means may comprise a stationary solenoid and a movable solenoid for being coupled to the needle. Preferably, a second stationary sol…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.