Handheld ring for probe protective sleeve, disposable probe protective sleeve assembly and assembling method

The invention discloses a handheld ring for a probe protective sleeve. The handheld ring comprises a cylinder body and an end cover, and the probe protective sleeve can be arranged outside the cylinder body in a sleeving mode; the edge of the head end of the cylinder body is outwards bent along the radial direction of the cylinder body to form a turnup, and the head end of the cylinder body is provided with a rib ring fixing piece for fixing a rib ring of the probe protective sleeve; the end cover is arranged outside the cylinder in a sleeving mode, the head end of the cylindrical end cover is in butt joint with the turned-over edge, and an annular cavity used for containing the probe protection sleeve is formed among the outer wall of the cylinder, the inner wall of the cylindrical end cover and the turned-over edge. The handheld ring is used for protecting the probe protective sleeve from being polluted by the outside, is convenient to take and sleeve the probe protective sleeve, and is beneficial to solving the problem that cross infection cannot be effectively avoided in the current intracavity ultrasonic examination. According to the disposable probe protective sleeve assembly, the whole body is of a disposable structure, one person uses the disposable probe protective sleeve assembly for isolation, and cross infection can be effectively avoided. In addition, the invention further provides an assembling method of the disposable probe protective sleeve assembly, and the assembling method is convenient to operate.