METHODS AND DEVICES TO DECREASE TISSUE TRAUMA DURING SURGERY

摘要

Methods and devices are disclosed to reduce tissue trauma when a physician retracts a patient's tissues for surgery. In one part, methods and devices are disclosed for controlling retraction force and pace. In another part, methods and devices are disclosed for oscillating force when opening. In another part, methods and devices are disclosed for detecting trauma during retraction. In another part, methods and devices are disclosed for balancing forces on multiple retraction elements. In another part, methods and devices are disclosed for reducing forces in multiple dimensions. In another part, methods and devices are disclosed for engaging ribs. In another part, methods and devices are disclosed to compensate for deformation of a retractor under load. In another part, methods and devices are disclosed that combine these methods and devices. In another part, methods and devices are disclosed for controlling pressure inside inflatable devices used for deforming biological tissues.

主权项

1. A fluidic system for deforming a biological tissue, comprising:
an inflatable device comprising a wall configured to be pressed against biological tissue to apply a pressure through the wall to the biological tissue; a tube attached to the inflatable device, the inflatable device attached at a distal end of the tube and in fluid communication with the tube; a pump in fluid communication with a proximal end of the tube configured to inflate the inflatable device; and a compliance flow control device, comprising:
a pressure release device configured to decrease fluid pressure at the proximal end of the tube; anda controller communicatively coupled to the pressure relief device and configured to receive signals from measuring devices associated with the biological tissue, determine if fluid pressure at the proximal end of the tube should be decreased based on the received signals, and in response cause the pressure relief device to decrease fluid pressure at the proximal end of the tube.