ACMI Corp. in Southboro has partnered with Conceptus Inc. to offer each other’s products to gynecologists for female sterilization procedures. Conceptus makes Essure, a device that allows a doctor to permanently block a woman’s fallopian tubes without making an incision. ACMI makes the SlimLine, a device that can be used to see inside the uterus and fallopian tubes. The two companies say the partnership should increase the number of procedures that are available in a doctor’s office rather than a hospital, which should allow for more office-based insurance reimbursements.