Staple cartridge assembly with cutting knife
A cutting knife and staple magazine technology, which is applied in the fields of surgical fixation nails, medical science, surgery, etc., can solve the problems of repeated use of cutting knife and complex structure, and achieve the effect of simple structure, avoiding cross infection and shortening the length
Active Publication Date: 2017-11-17
苏州朗特斯医疗科技有限公司
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Problems solved by technology
[0003] The invention provides a staple cartridge assembly with a self-contained cutting knife, which solves the problems of repeated use and complex structure of the cutting knife of the current intracavity linear cutting stapler
Method used
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Experimental program
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Embodiment
[0025] Embodiment: a kind of staple cartridge assembly with cutting knife
[0026] See attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 and attached Figure 5 As shown, the staple cartridge assembly includes a staple cartridge 1, staples 2, pusher blocks 3, a base plate 4, a cutting knife 5 and a pusher block 6; the staple cartridge 1 is fixedly connected to the base plate 4, and the staples 2 Installed on the nail pusher block 3, the nail pusher block 3 is installed in the nail cartridge 1; the front end of the nail cartridge 1 is defined as the end of the nail cartridge 1 close to the operator (usually referring to the patient who needs to perform the operation), The other end of the staple cartridge 1 close to the operator (usually referring to the surgeon) is the rear end of the staple cartridge 1, and the staple cartridge 1 is provided with a knife groove 7, and the direction of the knife groove 7 is from the rear end of the staple cartr...
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The invention provides a staple cartridge assembly with a cutting knife. The staple cartridge assembly is characterized by comprising a staple cartridge, sewing staples, staple pushing blocks, a bottom plate, the cutting knife and a knife pushing block, wherein the cutting knife comprises a knife handle and a knife head, the knife head is arranged on the knife handle, and the knife head is embedded in a knife feeding groove; an assembling hole is formed in the end face of the knife handle, a supporting leg is arranged on the knife handle and between the knife head and the assembling hole, and the supporting leg supports the bottom plate; the cutting knife is erected on the knife pushing block; a convex block is arranged on the knife pushing block in a manner of corresponding to the assembling hole, so that the cutting knife has a rotating supporting point relative to the knife pushing block; the cutting knife and the knife pushing block can move relative to the staple cartridge; an inclined plane is arranged on the knife pushing block, and the inclined plane of the knife pushing block is matched with the staple pushing blocks to force the sewing staples to extend out of the staple cartridge; a limiting elastic element is arranged in the staple cartridge; a positioning hole is formed in the bottom plate, and when the cutting knife moves to the positioning hole, the limiting elastic element abuts against the knife handle to force the supporting leg to fall into the positioning hole. For the staple cartridge assembly with the cutting knife provided by the invention, the cutting knife is disposable, the structure is simple, after use of the device, the knife head is not exposed, and thus the safety is good.
Description
technical field [0001] The invention relates to the field of intracavity linear cutting staplers, in particular to a staple cartridge assembly with a cutting knife, which is used for supporting the intracavity linear cutting stapler. Background technique [0002] Stapler is a device used in medicine to replace manual suturing. The main working principle is to use staples to separate or anastomose tissues, similar to a stapler. There are many kinds of staplers, which can be divided into straight-cut staplers, circular staplers, arc-cut staplers, button-shaped staplers, and paperclip-shaped staplers according to different shapes. Chinese patent CN106551710A discloses a linear cutting stapler, but it is a typical cutting stapler suitable for open surgery. With the development of medical technology, the current application of minimally invasive surgery in digestive tract surgery is becoming more and more common, and endoluminal linear cutting staplers are often used in minimall...
Claims
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IPC IPC(8): A61B17/072
CPCA61B17/07207A61B2017/07285A61B2017/07271A61B2017/00367
Inventor 陆云苏
Owner 苏州朗特斯医疗科技有限公司