Abstract: An inflatable cuff having integrated ultrasound transducers is used to effect hemostasis of deep bleeding wounds in limbs. The cuff includes a chamber defined by a bladder or a series of dams into which a fluid may be introduced and pressurized. The pressure of the fluid stops or slows bleeding while high intensity focused ultrasound is applied to effect hemostasis. The fluid may also serve as an acoustic couplant between the limb and the ultrasound transducers. The transducers may be electrostrictive transducers. Diodes may be used to reduce parallel capacitive loading in the transducer array. Bypass capacitors using the electrostrictive material may also be used.

Abstract: Methods and apparatuses for treating esophageal disorders such as gastroesophageal reflux disease are disclosed herein. One embodiment of a method includes applying energy to a portion of the sling and/or clasp fibers at the stomach, gastroesophageal junction, and/or esophagus of the patient in a manner that shortens or otherwise alters the fibers. The altered sling and/or clasp fibers are expected to recalibrate and restore the cardia and improve the competence of the lower esophageal sphincter. The energy applied to the fibers can be ultrasonic, radio-frequency, microwave, light, and/or other suitable types of energy.