Retracting arc cutting and stitching instrument

Abstract

The invention discloses a retracting arc cutting and stitching instrument, and belongs to the field of the cutting and stitching instrument in medical apparatuses. The arc cutting and stitching instrument structurally comprises a connection rod, a nail bin assembly, a nail bit assembly, a slide block, a driving wire, a nail bin occlusion arm, a nail bit occlusion arm, a drive rod and an occlusioncontrol rod, the nail bin assembly comprises an arc nail bin clamping plate, and a first slide rail is arranged on the arc nail bin clamping plate; the nail bit assembly comprises an arc nail bit clamping plate, the arc nail bit clamping plate and the arc nail bin clamping plate are oppositely arranged, and a second slide rail is arranged on the arc nail bit clamping plate; the two opposite ends of the slide block are matched with the nail bin clamping plate and the nail bit clamping plate in a sliding mode through the first slide rail and the second slide rail respectively, and a slide blockcutter inlet groove and a slide block cutter outlet groove are formed in the two ends of the second slide rail of the nail bit clamping plate respectively; the nail bin assembly and the nail bit assembly are in drive connection with the occlusion control rod through the nail bin occlusion arm, the nail bit occlusion arm and the drive rod. Compared with the prior art, the retracting arc cutting andstitching instrument has the advantages of being convenient to use and good in cutting and stitching effect.

Description

technical field [0001] The invention relates to the field of cutting and stapling devices in medical instruments, in particular to a retractable arc-shaped cutting and stapling device. Background technique [0002] Cutting staplers have been widely used in surgery at present, and clinically more common ones are linear cutting staplers, which complete B to form staples through the principle of similar staplers, and then cut the tissue through blades to achieve the purpose of cutting and suturing. However, in some special cases such as partial resection of lung tissue, etc., the linear cutting stapler has the following disadvantages (see attached Figure 4 shown): [0003] 1. When using the existing linear cutting stapler for partial resection, two or more cuts and sutures are often required. The staples will overlap at the junction of the sutures, resulting in excessive extrusion of the tissue, poor healing caused by ischemia, and the blade's impact on the suture. Cutting of...

AI Technical Summary

Problems solved by technology

[0006] 4. Most of the existing cutting and suturing devices are equipped with two or three rows of symmetrical staple-forming systems on both sides of the cutter to ensure the same suturing strength for the retained tissue and the resected tissue during the resection process, and to avoid bleeding and other situations. Continue to cut, but for the case that the cutting can be completed at one time, the above structure has the disadvantages of needing a strong driving force and high cost

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