The stomach pump was used to extract fluid from an animal’s stomach as well to administer injections as an enema syringe.

In an 1830 book John Read, who patented the veterinary stomach pump, described himself as “Inventor of the Veterinary Syringe for removing Intestinal Obstruction of Horses and Sporting Dogs; and for relieving hoven and choked cattle; &c.” Read also patented a stomach pump used for people, and a variety of other instruments such as a ‘steam inhaler’, syringe used for ‘tobacco fumigation’ to introduce smoke to the intestines; and catheters for a wide variety of uses.

Stomach Pump. Source: The Book of Farm Implements and Machines, Slight & Burn, 1858, p519.
Stomach Pump (Source: The Book of Farm Implements and Machines, Slight & Burn, 1858, p519)