Nut cap of tubular anastomat

A technology of staplers and caps, which is applied in the field of medical devices, can solve the problems that the minimum clearance of staplers cannot be guaranteed, the forming effect of staples is not good, and the safety of operations is reduced, so as to achieve high operation efficiency and safety, and good forming effects Good, high reliability in use

Inactive Publication Date: 2010-06-02
李东瑞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cap of the existing tubular stapler is directly mounted on the rear end of the adjustment handle by thrust. The inner cavity of the adjustment handle has a nut and a screw. The nut is threadedly connected to the screw. Move to the rear end of the adjustment handle, the rear end of the screw rod is easy to push off the cap, so that the cap falls off from the rear end of the adjustment handle
Doctors have very high requirements for medical devices when performing anastomosis operations. After the cap at the rear end of the adjustment handle falls off, the minimum gap between the stapler anastomosis cannot be guaranteed, and there is not enough space for the staples to be fired and formed, resulting in poor staple forming results. , resulting in the failure of the operation, the use of the tubular stapler with this cap is low in reliability and reduces the safety of the operation

Method used

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  • Nut cap of tubular anastomat
  • Nut cap of tubular anastomat
  • Nut cap of tubular anastomat

Examples

Experimental program
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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the embodiments given in the accompanying drawings.

[0020] Such as figure 1 , 2 , 3, 4, 5, 6, a tubular stapler cap, the inner end of the cover body 1 has a sink cavity 2, and the sink cavity 2 of the cover body 1 is provided with a stopper 3.

[0021] Such as figure 1 , 2 , 4, 5, and 6, in order to further improve the adaptability of the assembly of the screw rod 5 and the cap, so that the sink cavity 2 of the cap has a suitable space to accommodate the rear end of the screw rod 5, the stopper 3 is a part of the sink cavity 2 The protrusion protruding radially on the surrounding wall, and the depth of the stopper 3 is controlled within the range of 1 to 8mm. The top of the protrusion protruding radially on the surrounding wall of the sink cavity 2 is a concave arc surface, and the concave arc The surface can be rotatably matched with the circumferential surface of the shaft core o...

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PUM

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Abstract

The invention discloses a nut cap of a tubular anastomat, belonging to a medical appliance. A sinking cavity is arranged in the inner end of a cap body and is internally provided with a backstop which is a bulge extending radially from the peripheral wall of the sinking cavity or a bulge extending axially from the bottom surface of the sinking cavity. The nut cap of the tubular anastomat is difficult to fall off from the rear end of an adjusting handle of the tubular anastomat and can improve the use reliability of the tubular anastomat.

Description

technical field [0001] The invention relates to a medical device, in particular to a tubular stapler. Background technique [0002] Diseases in the human stomach, lung tissue and digestive tract are mainly treated with surgery, and tubular staplers are widely used in surgical operations to anastomose human tissues. The use of tubular stapler can reduce operation time and improve operation quality, the anastomosis is firm and reliable, and the hemostatic effect is good. The cap of the existing tubular stapler is directly mounted on the rear end of the adjustment handle by thrust. The inner cavity of the adjustment handle has a nut and a screw. The nut is threadedly connected to the screw. Moving toward the rear end of the adjustment handle, the rear end of the screw rod is easy to push off the cap, so that the cap falls off from the rear end of the adjustment handle. Doctors have very high requirements for medical devices when performing anastomosis operations. After the ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/072B25G1/10
Inventor 李东瑞李翔
Owner 李东瑞
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