Aspiration needle with side port

Details Aspiration needle with side port Aspiration needle with side port

1995-10-04

1998-12-01

Rimell, Sam

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

604272, A61M 500

Patent

active

058430237

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.

REFERENCES:
patent: 950822 (1910-03-01), McElroy
patent: 3076457 (1963-02-01), Copen
patent: 4016879 (1977-04-01), Mellor
patent: 4098275 (1978-07-01), Consalvo
patent: 4299217 (1981-11-01), Sagae et al.
patent: 4493708 (1985-01-01), Sugisawa
patent: 4531935 (1985-07-01), Berryessa
patent: 5160319 (1992-11-01), Emery et al.
patent: 5203769 (1993-04-01), Clement et al.

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