Contractible and telescopic oral conveying staple anvil device

Abstract

The invention discloses a contractible and telescopic oral conveying staple anvil device, and relates to a surgical anastomosis device. The contractible and telescopic oral conveying staple anvil device comprises a contractible staple anvil, a guiding tube and a controller. The contractible staple anvil is provided with a staple anvil top, at least three contractible sheets and a staple anvil handle, the staple anvil top is connected with the staple anvil handle, and spring grooves and annular anastomat clamp grooves are respectively arranged on backs of the contractible sheets; the staple anvil handle is in the shape of a hollow tube and is provided with at least two telescopic staple anvil handles; control spring holes are arranged at the front end of the staple anvil handle, the tail end of the staple anvil handle is connected with the guiding tube, and a control switch hole is arranged on one side of the rear end of the staple anvil handle; and the controller is provided with control springs, a control lever and a control switch, the control lever is provided with at least two telescopic levers, the control springs are arranged at the front end of the control lever, the control lever is positioned inside the staple anvil handle and controls contraction of the contractible staple anvil, and the control switch is arranged at the tail end of the control lever and penetrates through the control switch hole arranged on the side of the rear end of the staple anvil handle. The contractible and telescopic oral conveying staple anvil device is simple in operation, and possibility of esophageal injury in an operation procedure is greatly reduced.

Description

technical field [0001] The invention relates to a surgical anastomosis instrument, in particular to a retractable and telescopic peroral delivery anvil device. Background technique [0002] At present, the minimally invasive surgical treatment of gastrointestinal tumors such as esophageal cancer and cardia cancer often uses a peroral delivery anvil device, which includes a peroral anvil placement device and a circular stapler. Although the current peroral delivery anvil device makes possible minimally invasive surgical anastomosis for digestive tract reconstruction, it still has the following inconveniences in clinical application: [0003] 1) At present, the diameter of the anvil is the same as the diameter of the stapler (greater than or equal to 2.5cm), and the oral cavity is generally blocked by a tracheal intubation during the operation, so an anvil with a diameter greater than or equal to 2.5cm is inserted into the esophagus during the operation relatively difficult; ...

AI Technical Summary

Problems solved by technology

[0003] 1) At present, the diameter of the anvil is the same as the diameter of the stapler (greater than or equal to 2.5cm), and the oral cavity is generally blocked by a tracheal intubation during the operation, so an anvil with a diameter greater than or equal to 2.5cm is inserted into the esophagus during the operation relatively difficult;

[0004] 2) During the operation, an anvil with a diameter greater than or equal to 2.5 cm is placed into the esophagus, and when it reaches the anastomotic site from the esophageal entrance, it is easy to cause damage to the esophageal mucosa

[0005] 3) Because the length of the anvil needs to be matched with the circular stapler, the length of the anvil is about 5cm. Since the anvil is made of hard metal material, it is relatively difficult to insert during the operation, especially the process of entering the esophagus through the throat bend;

[0006] 4) Anvil with a length greater than or equal to 5 cm is placed into the esophagus through the mouth during the operation. When reaching the anastomotic site from the esophageal entrance, it is easy to cause throat damage

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