Continuous inflation ambulatory device with constant pressure of tissue expansion balloons (dilators)

摘要

The invention relates to an ambulatory method allowing constant-pressure continuous inflation to be ensured in a tissue expansion balloon (dilator) intended to produce an excess of skin used to cover a loss of substance in a patient. It consists of a peristaltic pump 9 injecting a liquid 10 into a tissue expansion balloon (dilator) 11. The pressure of the liquid in the balloon is sampled 12 and measured by a sensor 1. After preamplification 3, the signal leaving the sensor is compared with a reference pressure value 5. The control circuit 7 will actuate the motor of the pump when the value of the pressure in the balloon 4 is less than the predetermined value 6. IMAGE