Stapler's suture assembly and stapler

Abstract

The present invention provides a stapler suturing assembly and stapler, comprising a mounting seat, a staple anvil seat, a staple anvil assembly, a housing, a staple push assembly, a staple cartridge, a telescopic cartridge, a bracket assembly, a push rod, a screw assembly, and a limit assembly , return spring, isolation assembly and fixed screw, the present invention adjusts the relative position between the telescopic bin and the push rod, and fixes the telescopic bin and the push rod together through the screw assembly, after changing the distance, it does not affect the push rod pushing and pushing The staple assembly can adjust the distance between the staple anvil assembly and the staple cartridge according to the thickness of the tissue to be sutured during use, so as to make the staple cartridge move a short distance during suture, and prevent the position of the staple cartridge from being deviated during suture. When the nail anvil assembly is not installed in place, the spacer block will pop out and block between the nail anvil assembly and the nail cartridge to prevent the nail cartridge from contacting the nail anvil base. After the nail anvil assembly is installed, press the spacer block down without hindering The movement of the nail cartridge avoids the damage caused by the misoperation of the uninstalled nail anvil.

Description

technical field [0001] The invention relates to the technical field of medical suturing equipment, in particular to a suturing component of a stapler and a stapler. Background technique [0002] Stapler is a medical device that replaces traditional manual suture. Due to the development of modern technology and the improvement of manufacturing technology, the application range of stapler is more and more extensive in clinical practice. In surgery, the suture principle of stapler is, The staples are driven into the tissue that has been aligned and need to be stapled together. After passing through the tissue, the staples are blocked by the anvil seat on the opposite side and bend inward to form a "B" shape that is mutually dislocated. Permanently stapled together, staples are generally placed in a staple cartridge, which is installed in the stapler assembly of the stapler, which pushes the staple cartridge and sews the staples into the tissue that needs to be stapled together....

AI Technical Summary

Problems solved by technology

[0003] The publication number is CN209404857U, which provides a disposable linear stapler. The executive mechanism of the device, that is, the suture mechanism, mainly drives the push plate and the nail push piece to move forward through the firing handle, and the nail push piece cooperates with the staple cartridge to move the staple cartridge The staples inside are pushed toward the anvil until the staples are formed on the anvil. This suture mechanism is simple in structure and has the following disadvantages: 1. The distance between the staple cartridge and the anvil cannot be adjusted according to the tissue to be sutured. The thickness of the nail can be adjusted freely, so that the staple cartridge needs to move a long distance when suturing some thinner tissues, which is prone to suture deviation; 2. There is no safety mechanism between the staple cartridge and the nail anvil. At this time, if the staple cartridge movement will directly contact the support plate, it will easily cause damage to the stapler, and the staples pushed out will easily cause secondary injury to the patient; 3. During the advancement and reset process of the pusher, Guidance is carried out through the chute of the pusher piece, but the chute of the pusher piece can only be used for guidance. During the reset process, there is no limit mechanism, and the problem of jamming is prone to occur during the reset process.

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