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A surgical rotary bit of binding instruments

A technology of rotating cutter head and binding instrument is applied in the field of medical equipment to achieve the effects of reducing binding force, reducing resistance and reducing side effects

Active Publication Date: 2009-03-04
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rotary cutter head of a surgical binding instrument, which is not only suitable for PPH binding instruments, but also suitable for circular tube binding instruments, so that when doctors use these two types of surgical binding instruments to perform surgical operations, they can effectively overcome the Problems such as excessive force and unclean removal of excess tissue on the wound surface

Method used

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  • A surgical rotary bit of binding instruments
  • A surgical rotary bit of binding instruments
  • A surgical rotary bit of binding instruments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Figure 1~ Figure 4 , Image 6 , Figure 7The rotary cutter head shown includes a nail barrel 9, a knife seat 3, a nail pusher 1, and a nail bin 8, and the knife seat 3 is equipped with a ring knife 2, and the knife seat 3, the nail pusher 1 and the nail bin 8 are all set. Inside the nail cylinder 9, a complete stapler cutter head is formed. A split-type nail pusher is adopted, which is divided into an upper nail pusher 1a and a lower nail pusher 1b. First push down the nail piece 1b into the nail barrel 9, guide post 4 is provided on the outside of the knife seat 3, and place the track accessory block under the knife seat 3. Then, put the guide post 4 against the track accessory block and align it with the introduction port 11 provided at the front end of the threaded track 5, slowly rotate the tool holder 3 or the track accessory block, and store the tool holder 3 in the track accessory block. At the same time, insert the push-up nail piece 1a into the joint gap b...

Embodiment 2

[0033] Such as Figure 3 ~ Figure 5 As shown, the nail pusher 1 with an integrated structure has a relief groove 6 in the circumferential direction, and the number and position of the relief groove 6 are determined according to the number and position of the guide posts 4 on the tool holder. Since the nail pusher adopts an integrated structure, the knife seat 3 of the pluggable guide post 4 can be selected. First put the knife holder 3 into the front end of the nail pusher 1, let the guide post 4 pass through the relief groove 6 and insert it into the corresponding matching hole 7 on the knife holder, and then move the track accessory block upwardly from the tail end of the nail pusher 1 to the Align the guide post 4 with the lead-in port 11 at the front end of the threaded track 5 at the position of the step-off groove 6, and slowly rotate the pusher piece 1 or the track accessory block to realize the alignment of the track accessory block, the pusher piece 1, and the tool ho...

Embodiment 3

[0035] As shown in Figures 1 to 4, the rotary cutter head of the surgical stapler includes a nail barrel 9, a knife seat 3, a nail pusher 1, and a staple bin 8. The knife seat 3 is equipped with a ring-shaped knife 2, a knife seat 3, The nail pusher 1 and the staple magazine 8 are both placed in the nail barrel 9 to form a complete stapler cutter head. The threaded track 5 is directly provided on the inner wall of the nail barrel 9, and the guide post 4 is provided on the outside of the knife seat 3. , and the two are integrated, that is, they are cast into one. After assembling the knife holder 3 and the nail pushers 1a and 1b with the above method, align the guide post 4 with the inlet 11 of the threaded track, slowly rotate and move, and put the nail pusher and the knife holder 3 together into the nail cylinder 9 , because the guide post 4 cooperates with the threaded track 5 to make the knife seat 3 rotate along the threaded track 4, and the ring-shaped knife 2 is fixedly ...

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Abstract

The invention relates to a rotating knife head of a surgical binding apparatus, including a nail tube, a knife rest, a nail pushing plate and a nail bin. The knife rest is provided with an annular knife. The knife rest, the nail pushing plate and the nail pin are all arranged inside the nail tube and form a whole knife head of the binding apparatus which is characterized in that a rotating mechanisms which can ensure the axial motion of the knife rest along the knife head of the binding apparatus as well as the circumferential rotary motion of the knife rest are arranged on the nail tube and the knife rest, and the rotating mechanisms have a plurality of patterns, such as the whole pattern, the combined pattern etc. The rotating knife head is applicable to a PPH binding apparatus and a pipe-type binding apparatus, which is used in the alimentary canal tissue broken end anastomoses. When used, the rotating knife can effectively reduce the resistance for cutting the tissue and reduce the drawn wound of the tissue that is caused by cutting, which ensures that the operator can more safely and reliably cut off the tissue to insure that the operation is achieved more successfully.

Description

technical field [0001] The invention relates to a binding instrument used in surgical operations, in particular to a cutter head of the binding instrument, in particular to a rotating function knife head suitable for a circular tube binding instrument or a PPH binding instrument, and belongs to the technical field of medical instruments. Background technique [0002] People have a history of more than 4,000 years in the understanding of hemorrhoids, and there have been endless theories about hemorrhoids for a long time. Since the 18th century, hemorrhoids were considered to be rich venous plexuses in the lower rectum or anal canal. If they expand or varicose in one or several places, they become hemorrhoids, that is, hemorrhoids are protruding veins, which are caused by various reasons. Vascular disease. Since the 1970s, breakthroughs have been made in the study of hemorrhoids, and many modern concepts have been given to hemorrhoids by anatomy, histology and physiology. In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/068A61B17/138
Inventor 陈望东印卫忠
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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