Follicular aspiration needle
OwnerOsnir Yoshime Watanabeinventor
Life of this patent
Estimating the term…
Abstract
The invention refers to a needle for follicular aspiration, having a base with a through-hole, inside of which a needle cannula is coupled, the needle cannula having a front aspiration end which protrudes from a front end of the base, and a rear end which freely protrudes from the rear end of the base, the through-hole of the base having a frustro- conical segment tapering from the rear end towards the front end of the base, forming a gap between the inner surface of the base and the outer surface of the needle cannula for coupling a biological sample collecting line.
Claims19
A needle for follicular aspiration, comprising:
- a base with a through-hole, inside of which a needle cannula is coupled, wherein the needle cannula has a front aspiration end which protrudes from a front end of the base, and where the needle cannula has a rear end which freely protrudes from a rear end of the base,
- the through-hole of the base has a frustro-conical segment tapering from the rear end towards the front end of the base, forming a gap between an inner surface of the base and an outer surface of the needle cannula for coupling a biological sample collecting line, and
- wherein the base comprises threads at the rear end.
A needle for follicular aspiration, comprising:
- a base with a through-hole, inside of which a needle cannula is coupled, wherein the needle cannula has a front aspiration end which protrudes from a front end of the base, and where the needle cannula has a rear end which freely protrudes from a rear end of the base;
- wherein the through-hole of the base has a frustro-conical segment tapering from the rear end towards the front end of the base, forming a gap between an inner surface of the base and an outer surface of the needle cannula for coupling a biological sample collecting line;
- and
- wherein a frustro-conical elongation extends from the rear end of the base, the frustro-conical elongation including an interior with a frustro-conical profile and a back end which includes an edge in the shape of an annular ledge for fastening.
A needle for follicular aspiration, comprising:
- a base with a through-hole, inside of which a needle cannula is coupled, wherein the needle cannula has a front aspiration end which protrudes from a front end of the base, and where the needle cannula has a rear end which freely protrudes from a rear end of the base;
- wherein the through-hole of the base has a frustro-conical segment tapering from the rear end towards the front end of the base, forming a gap between an inner surface of the base and an outer surface of the needle cannula for coupling a biological sample collecting line;
- wherein an outer diameter of the needle cannula is between 1 to 3 mm;
- wherein the frustro-conical segment has a maximum slant angle of 15°;
- and
- wherein an interior diameter of the frustro-conical segment varies from 2.01 mm proximate to the rear end of the base to 1.61 mm proximate to the front end of the base.
Dependencies are inferred from the claim text.