Disposable internal incision and closure stapler

Abstract

The invention relates to the technical field of disposable anastomats, in particular to a disposable internal opening cutting and enclosing anastomat. The disposable internal opening cutting and closing anastomat comprises a cutting molding assembly, a transmission assembly and a gun body provided with a triggering assembly, wherein the cutting molding assembly comprises a nail cabin bracket, a scalpel support ring, a nail pressing seat, a nail pushing device, a nail cabin support and a nail cabin; the nail cabin is clamped in a clamping groove of the nail cabin support through a buckle; the nail cabin support is directly connected with the gun body through the transmission assembly; the head of the nail cabin is circular-arc-shaped or parabolic; nail grooves of the nail cabin are of asymmetrical mode; the transmission assembly comprises a transmission lead screw; the lead screw is a large-screw-pitch left-handed lead screw; the tail end of the lead screw is connected with a corresponding lengthened nut assembly; the lengthened nut assembly and a knob positioned at the tail end of the gun body are molded together by injecting or embedded together; the gun body is a lever type or connecting-rod-type gun body. The disposable internal opening cutting and enclosing anastomat is skillful in design, and has a good application prospect; by adopting the disposable internal opening cutting and enclosing anastomat, a plurality of use problems in the prior art can be solved effectively.

Description

technical field [0001] The invention relates to the technical field of disposable staplers, in particular to a disposable stapler for cutting and closing the internal opening. Background technique [0002] There are various types of staplers on the market, which are widely used in surgical operations to anastomose various parts of the human body, which can reduce operation time and improve operation quality. The anastomosis is firm and reliable, and the hemostatic effect is good. [0003] However, there are still many problems in the use of the existing circular cutting stapler: [0004] First, the shape of the staple cartridge in the existing structure is cylindrical, which hinders the field of view and cannot form a wide surgical field of view, and the space for wound suture is small, which is inconvenient for medical staff to operate; [0005] Second, the nail slots on the existing staple cartridges are usually arranged symmetrically, which is a pattern of 2 queues for c...

AI Technical Summary

Problems solved by technology

[0004] First, the shape of the staple cartridge in the existing structure is cylindrical, which hinders the field of view and cannot form a wide surgical field of view, and the space for wound suture is small, which is inconvenient for medical staff to operate;

[0005] Second, the nail slots on the existing staple cartridges are usually set symmetrically, which is the mode of 2 queues for closing wounds + 0 queues for cutting tissue wounds

In actual use, the size of the wound is different. Usually, the sutured wound of the head of the stapler is 1 cm to 1.5 cm. Assuming that under the sutured wound of 1 cm, there are generally only 5 staples in the conventional 2 rows of nail slots. The density is small, such a sutured wound is still prone to bleeding, and cannot bear the pressure of 220 mm Hg;

[0006] Third, when the conventional circular stapler is suturing, the anvil moves and the staple cartridge does not move. This requires changing the rotation direction of the traditional screw without changing the doctor's operating habits, which is inconvenient for the intense surgical process. of;

[0007] Fourth, the existing staple cartridge and anvil, as well as between the anvil and the gun body are not detachably connected, and the user cannot disassemble it by himself, especially the staple cartridge cannot be replaced independently, and only the entire stapler can be replaced. Replacement, equipment consumption is large

Images