Aspiration needle with side port
US5843023A · kind A · utility
47Cited by
9References
20Claims
0Family size
Inventor
Key dates
| Filing date | Oct 4, 1995 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Oct 4, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1416
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A single-lumen oocyte collection device, having a cannula which extends axially outward from a proximal end of a hub. The cannula has a side port and an axial port, each linked to a resilient portion of tubing to allow selective occlusion of the lumen thereof. The side port, through the hub, has a fixed relation to a sharpened, bevelled tip of the cannula, allowing even rotation and accurate orientation of the beveled tip of the device to puncture a follicle on an ovary with minimal trauma prior to collecting an oocyte. An echogenic structure is formed at the tip of the cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.