Intrauterine Lidocaine Infusion for Essure Sterilization Procedures

Inclusion Criteria: * Female * Age 18 or older * Good general health, based on the opinion of the investigator * Voluntarily requesting permanent sterilization * Negative pregnancy test * Agree to premedication with ibuprofen and ativan * English speaking, or other language if an interpreter is available to be present at all points of the study procedure. * Willing and able to sign an informed consent * Willing to comply with the terms of the study Exclusion Criteria: * Significant physical or mental health condition, based on the opinion of the investigator. * Positive pregnancy test * Request for IV/IM sedation prior to the start of the procedure * Refusal of ibuprofen, ativan, or paracervical block * Allergy to any study medication including lidocaine, ibuprofen, ativan, sodium bicarbonate * History of toxic reaction to local anesthetics * Known hepatic disease or liver dysfunction. (Lidocaine is metabolized by the liver.) * Weight less than 100 pounds. \[Any patient weighing less than 100 pounds would receive more than the recommended dose for their weight (4.5 mg/kg or 2 mg/lb)\]. * Current participation in another research study which would interfere with the conduct of this study.