I am a fan of Japanese Enema Videos. They use a Glass Piston
Syringe in many, seen them on famous auction site for $200!
From China.
Also used are the Higginson Bulb Syringes with tube on each end.
Place the sinker/one way valve one in liquid, other end in rectum.
Squeeze away, pumping. Popular in the UK and related.
Then there is a hangup plastic or glass irrigator with rubber
hose at bottom. In a number of photos, an unusual metal wire,
spring hose clamp.
On Youtube, a number of videos using a plastic or metal version
of the "Jones type enema can" or irrigator. Could be Chinese or Japanese.
In some are using a practice dummy for demo, but in one a real woman.