A system for supplying insufflation fluid comprising: a laparoscopic access device; a primary pressure sensor positioned on or in the laparoscopic access device; an insufflator communicatively coupled to the primary pressure sensor; and a pressure module communicatively coupled to the insufflator, the pressure module further comprising: a backup pressure sensor; a processor; a computer-readable media having logic stored thereon, the logic operable, when executed on the processor, to: receive pressure measurements from the primary pressure sensor when the laparoscopic access device is positioned in a patient cavity; control the supply of insufflation fluid from the insufflator to the patient cavity based at least on the pressure measurements from the primary pressure sensor; and determine that the pressure measurements from the primary pressure sensor may be inaccurate and in response, control supply of insufflation fluid by the insufflator to the patient cavity based at least on a pressure measured by the backup pressure sensor rather than based on the pressure measurements from the primary pressure sensor. a laparoscopic access device; a primary pressure sensor positioned on or in the laparoscopic access device; an insufflator communicatively coupled to the primary pressure sensor; and a pressure module communicatively coupled to the insufflator, the pressure module further comprising: a backup pressure sensor; a processor; a computer-readable media having logic stored thereon, the logic operable, when executed on the processor, to: receive pressure measurements from the primary pressure sensor when the laparoscopic access device is positioned in a patient cavity; control the supply of insufflation fluid from the insufflator to the patient cavity based at least on the pressure measurements from the primary pressure sensor; and determine that the pressure measurements from the primary pressure sensor may be inaccurate and in response, control supply of insufflation fluid by the insufflator to the patient cavity based at least on a pressure measured by the backup pressure sensor rather than based on the pressure measurements from the primary pressure sensor. a backup pressure sensor; a processor; a computer-readable media having logic stored thereon, the logic operable, when executed on the processor, to: receive pressure measurements from the primary pressure sensor when the laparoscopic access device is positioned in a patient cavity; control the supply of insufflation fluid from the insufflator to the patient cavity based at least on the pressure measurements from the primary pressure sensor; and determine that the pressure measurements from the primary pressure sensor may be inaccurate and in response, control supply of insufflation fluid by the insufflator to the patient cavity based at least on a pressure measured by the backup pressure sensor rather than based on the pressure measurements from the primary pressure sensor. receive pressure measurements from the primary pressure sensor when the laparoscopic access device is positioned in a patient cavity; control the supply of insufflation fluid from the insufflator to the patient cavity based at least on the pressure measurements from the primary pressure sensor; and determine that the pressure measurements from the primary pressure sensor may be inaccurate and in response, control supply of insufflation fluid by the insufflator to the patient cavity based at least on a pressure measured by the backup pressure sensor rather than based on the pressure measurements from the primary pressure sensor.