Bloodless liver exsector

Abstract

The bloodless liver exsector has one exsector head, one water control button connected through water pipeline to the exsector head, one main control button connected through wires to the exsector head, one power source with circuit board, one suction tube set in the front end of the exsector head, one suction cap covering the front end of the exsector bar and communicated with the suction tube and one flushing tube. During operation, the suction cap with negative pressure sucks out the liquid and other rabbish in the operational view field, and the liver exsector exsects liver tissue while blocking small blood vessels and coagulating electrically for hemostasis. The operation process has clear view field and is safe, and the bloodless liver exsector has compact structure, small size and easy operation.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a multifunctional surgical knife for bloodless hepatectomy. Background technique [0002] Controlling bleeding and exposing various ducts in the liver section during liver resection are crucial technical issues. The liver tissue is covered with a large number of reticular blood vessels and bile ducts. If instruments can be used to close the thin ducts and expose the thicker ducts for ligation, the problem of liver resection will be easily solved. Although the clamping method of the main instruments currently used can clamp thicker channels, it can cause massive bleeding in small blood vessels; high-frequency electrocautery can generate eschar to seal thinner channels through electrocoagulation, but it cannot expose the liver. When a large blood vessel is encountered and the wall of the vessel is damaged by electrocoagulation, a large amount of bleeding will be caused. In addition, the es...

AI Technical Summary

Problems solved by technology

Chinese patent ZL 91229015.3 discloses a negative pressure suction type hepatectomy saw blade. A suction pipe is set beside the knife rod. The bleeding of small blood vessels can be sucked away by negative pressure suction to clearly display the surgical section, but it is easy to cause a large amount of bleeding. The knife can only attract the bleeding on one side of the surgical section, and it cannot make the surgical field clear in terms of the position or the range, and it cannot release the thin channels closed by radiofrequency. The attraction effect is not obvious

Chinese patent ZL01250021.6 discloses a bipolar drip electric knife for hepatectomy, which can achieve the effect of preventing eschar by dripping water from the knife head during the operation, but it is easy to cause water and dirt in the operation field, so that the operation field is not clean. Clear, prone to safety accidents;

[0003] Therefore, there is still a lack of a liver cutting tool that can control bleeding, prevent eschar from damaging large blood vessels, and remove fluid and debris in an all-round and wide range to clearly display the section.

Images