A system comprising: a medical appliance, wherein the medical appliance is one of a needle, a stapler, a grasper, a pair of scissors, a scalpel, a cutter, an electrode, an end seal, and a multiple access port; a primary pressure sensor positioned on, in, or through the medical appliance, the primary pressure sensor configured to determine a pressure of a patient cavity ; a backup pressure sensor ; and an insufflator comprising: a pressurized fluid source; a processor ; and 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 positioned on, in, or through the medical appliance, the medical appliance being positioned at or within a patient cavity ; control a supply of insufflation fluid from the pressurized fluid source to the patient cavity based at least on the pressure measurements from the primary pressure sensor ; and in response to determining that the pressure measurements from the primary pressure sensor may be inaccurate, control the supply of the insufflation fluid by the pressurized fluid source to the patient cavity based at least on a pressure measured by the backup pressure sensor . a medical appliance, wherein the medical appliance is one of a needle, a stapler, a grasper, a pair of scissors, a scalpel, a cutter, an electrode, an end seal, and a multiple access port; a primary pressure sensor positioned on, in, or through the medical appliance, the primary pressure sensor configured to determine a pressure of a patient cavity ; a backup pressure sensor ; and an insufflator comprising: a pressurized fluid source; a processor ; and 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 positioned on, in, or through the medical appliance, the medical appliance being positioned at or within a patient cavity ; control a supply of insufflation fluid from the pressurized fluid source to the patient cavity based at least on the pressure measurements from the primary pressure sensor ; and in response to determining that the pressure measurements from the primary pressure sensor may be inaccurate, control the supply of the insufflation fluid by the pressurized fluid source to the patient cavity based at least on a pressure measured by the backup pressure sensor . a pressurized fluid source; a processor ; and 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 positioned on, in, or through the medical appliance, the medical appliance being positioned at or within a patient cavity ; control a supply of insufflation fluid from the pressurized fluid source to the patient cavity based at least on the pressure measurements from the primary pressure sensor ; and in response to determining that the pressure measurements from the primary pressure sensor may be inaccurate, control the supply of the insufflation fluid by the pressurized fluid source to the patient cavity based at least on a pressure measured by the backup pressure sensor . receive pressure measurements from the primary pressure sensor positioned on, in, or through the medical appliance, the medical appliance being positioned at or within a patient cavity ; control a supply of insufflation fluid from the pressurized fluid source to the patient cavity based at least on the pressure measurements from the primary pressure sensor ; and in response to determining that the pressure measurements from the primary pressure sensor may be inaccurate, control the supply of the insufflation fluid by the pressurized fluid source to the patient cavity based at least on a pressure measured by the backup pressure sensor . <EOS>