1results about How to "Uniform damage" patented technology

The application discloses a stoma device and a bipolar stoma system. The stoma device comprises a puncture assembly, a first electrode, a second electrode and a sheath assembly. The puncture assembly comprises a mandrel and a puncture part arranged at the distal end of the mandrel. The first electrode is arranged around the mandrel and at the proximal end of the puncture part. The sheath assembly is arranged around the puncture assembly, and the second electrode is arranged at the distal end of the sheath assembly. The first electrode can move axially along the mandrel relative to the second electrode. The stoma device provided by the application can make the damage on both sides of the tissue relatively uniform, is less likely to heal and can avoid stoma failure. Meanwhile, the stoma device can avoid the heat damage caused by the negative plate in the monopolar stoma system.