Blood occlusion device for hepatic operation

Abstract

The invention discloses a blood occlusion device for a hepatic operation. The device comprises a tube body capable of being planted into a blood vessel. A displacement prevention device is arranged on the outer surface of one end of the tube body. A cavity is arranged inside the tube body. A blood occlusion device body is arranged inside the cavity. The displacement prevention device comprises an expander. The expander comprises a plurality of step protrusions evenly arranged on the outer surface of one end of the tube body. The step protrusions are in a wedge shape. An adjusting groove is formed in the surface, matched with the outer surface of the tube body, of each step protrusion. A groove is formed in the position, matched with each adjusting groove, of the tube body. According to the technical scheme, the displacement prevention device and the blood occlusion device are indispensable; if the displacement prevention device is omitted, the fixed position cannot be ensured, and the operation progress is affected; if the blood occlusion device is omitted, the predetermined effect cannot be achieved. The displacement prevention device and the blood occlusion device are operated in the operation process, so that the operation time is greatly shortened, and the survival probability of a patient is increased.

Description

Technical field

[0001] The invention relates to a blood flow blocking device for liver surgery, which belongs to the field of medical equipment. Background technique

[0002] Hepatic vein root and posterior inferior vena cava injury is one of the most difficult cases in abdominal trauma surgery. The mortality rate is extremely high. In clinics with few cases, the mortality rate can even reach 80-100%. The reason is that the wound is exposed. Extremely difficult, even barely revealing is at the cost of hemorrhage and air clots, and it is impossible to obtain a clear surgical field of vision.

[0003] Some of the predecessors' methods are: 1. Use a hollow soft catheter, but need to block the inferior vena cava freely above and below the liver, insert a blocking band, and even need to open the chest; 2. Use the upper and lower ends of the double The balloon soft catheter can block the whole liver blood flow, but it has poor operability and low efficiency. Practice has proved that it ...

Images