leeches

"The doctor used leeches to reduce swelling in the patient's injured finger by drawing out excess blood. "

""The unemployed relative who constantly borrows money but never repays it is considered one of the family's leeches." "

"The old medical kit contained glass leeches, used for drawing blood and relieving swelling. "

"The doctor decided to leech the swelling in the patient's knee. "

"Bert leeched hundreds of files from the BBS, but never uploaded anything in return."

"In the 1800s, some doctors were known as "leeches" because they often used bloodletting as a treatment. "

"In their village, the leeches were respected for their knowledge of herbs and their ability to mend broken bones. "

"While unconventional and less common in modern English, here's a sentence fitting the requested parameters:

"In the old days, doctors would leech patients with bloodletting to try and cure them of their illnesses." "

"The sailors adjusted the lines to tighten the leeches of the square sails, making the ship sail faster. "

"The sailor adjusted the tension on the leeches of the mainsail to catch more wind. "