Gynecological instruments, especially for transferring embryos

DETAILED DESCRIPTION What is claimed is: 1.
A gynecological instrument comprising: a hollow, rigid cyindrical body having a central bore of a first diameter with a distal end and a proximal end; a housing carried by said distal end having a diameter larger than said first diameter; a reservoir tube in said housing for reproductive components having an end part projecting beyond the distal end of the cylindrical body; a rigid, axial piston rod mounted so as to slide in the cylindrical body and projecting beyond the proximal end thereof for sliding into the reservoir tube when said reservoir tube is accommodated in the cylindrical body; an external protective sheath having a distal end, said sheath closely enveloping in a sliding fashion the cylindrical body and further enveloping the projecting end of the reservoir tube; a terminal tip provided on said sheath at the sheath distal end wherein the projecting end of the reservoir tube bears on the inside of the terminal tip, the said terminal tip having an exteriorly rounded, solid head and behind said head two portions having different diameters separated by a shoulder, with a first portion of larger diameter than the second portion located at the back of said rounded head and having a cylindrical external surface wherein said shoulder has a height corresponding approximately to the thickness of the protective sheath, with said second portion comprising a cylindrical part of smaller diameter than the first portion located at the back of said first portion behind said shoulder, wherein the external protective sheath fits on said second portion as far as the shoulder, and wherein said rounded head of the terminal tip has the shape of a portion of a sphere with the diameter of the cylindrical external surface of said first portion being smaller than the largest diameter of the portion of a sphere; an axial passage provided on the inside of said terminal tip, wherein the axial passage is blind at one of its ends and open towards the cylindrical body; and a lateral transfer orifice of said terminal tip behind said rounded head providing communication for said terminal tip with the outside towards its blind end