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Blade structure

A blade and blade technology, applied in the field of blade tooth structure, can solve the problems of insufficient sharp blade tooth structure of planer blade, affecting the recovery of patients, unreasonable cutting force, etc., to achieve the effect of increasing sharpness, simple processing, and avoiding knife jamming

Pending Publication Date: 2017-01-25
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most minimally invasive planers in China rely on imports, which are expensive, and there is no uniform standard for their structural dimensions. Since the structure of the planer teeth is not considered in the design and manufacture of the principle of biological tissue removal, it will be difficult to remove soft tissue, cartilage and other tissues due to The teeth of the planer are not sharp enough and the structure of the teeth is unreasonable, resulting in excessive cutting force, tearing of uncut tissue, and knife jamming of the planer during the operation, which is not conducive to the smooth progress of the operation and because the secondary damage during the operation affects post-patient rehabilitation

Method used

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Experimental program
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Effect test

Embodiment 1

[0026] This embodiment provides a blade structure, including a base body 1, the base body includes a base surface 10, the base surface extends along the cutting direction of the blade with a rake face 20, a side end face 40 and a second end face 50, the rake face The surface is symmetrically parallel to the second end face, the front end of the rake face 20 is connected with a first end face 30, the connection between the rake face and the first end face is the front edge 3, and the first end face and the side end face They are connected to form a side cutting edge 4; the rake face 20, the first end face 30, the side end face 40 and the second end face 50 together enclose the cutter tooth 2 of the synthetic blade.

[0027] Further, the connection angle between the rake face and the first end face is 120°.

[0028] Further, the side end surface is a horizontal plane.

[0029] Further, the rake surface and the second end surface are circular arc surfaces.

[0030] Further, the...

Embodiment 2

[0036] This embodiment provides a blade structure, including a base body 1, the base body includes a base surface 10, the base surface extends along the cutting direction of the blade with a rake face 20, a side end face 40 and a second end face 50, the rake face The surface is symmetrically parallel to the second end face, the front end of the rake face 20 is connected with a first end face 30, the connection between the rake face and the first end face is the front edge 3, and the first end face and the side end face They are connected to form a side cutting edge 4; the rake face 20, the first end face 30, the side end face 40 and the second end face 50 together enclose the cutter tooth 2 of the synthetic blade.

[0037] Further, the connection angle between the rake face and the first end face is 150°.

[0038] Further, the side end surface is a concave arc surface.

[0039] Further, the rake surface and the second end surface are circular arc surfaces.

[0040] Further, ...

Embodiment 3

[0046] This embodiment provides a blade structure, including a base body 1, the base body includes a base surface 10, the base surface extends along the cutting direction of the blade with a rake face 20, a side end face 40 and a second end face 50, the rake face The surface is symmetrically parallel to the second end face, the front end of the rake face 20 is connected with a first end face 30, the connection between the rake face and the first end face is the front edge 3, and the first end face and the side end face They are connected to form a side cutting edge 4; the rake face 20, the first end face 30, the side end face 40 and the second end face 50 together enclose the cutter tooth 2 of the synthetic blade.

[0047] Further, the connection angle between the rake face and the first end face is 135°.

[0048] Further, the side end surface is a horizontal plane.

[0049] Further, the rake surface and the second end surface are circular arc surfaces.

[0050] Further, the...

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Abstract

The invention provides a blade structure, comprising a basal body (1), wherein the base body (1) comprises a basal surface (10), and the basal face extends with the a front knife face (20), a side end face (40) and a second end face (50); the front knife face is symmetrically parallel to the second end face, the front end of the knife face (20) is connected with a first end face (30), the first knife face (20), first end face (30), side end face (40) and second end face (50) jointly form blade tooth (2) of the blade. The blade structurehas simple processing method and low production cost. Theblade structure deeply optimizes blade tooth based on actual operation process and cutting theory, which can obviously increase sharpness of minimally invasive planer tool and reduce cutting force of operation process, to make biological tissue to be cut can be cut more easily and avoid tear of uncut organization, avoid lock of endoscope planer tool, to reduce secondary damage to affected part in operation to the minimum degree.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a knife tooth structure for a minimally invasive surgical knife. Background technique [0002] Compared with traditional open surgery, minimally invasive surgery has less trauma, faster recovery, beautiful incision and fewer complications. The concept of minimally invasive surgery has been gradually valued and widely used in clinical practice. Minimally invasive surgery will gradually replace or optimize traditional surgical methods , the market demand for minimally invasive planers for minimally invasive surgery is growing rapidly. Articular cartilage belongs to the pressure-bearing tissue of human body movement. The reciprocating force of articular cartilage is destined to be a vulnerable part. With the aging of the population and the modern people's yearning for sports, the number of people with articular cartilage lesions and the need for minimally invasive surgery The num...

Claims

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Application Information

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IPC IPC(8): A61B17/3211
CPCA61B17/3211
Inventor 王成勇郑李娟汤娜董榜喜
Owner GUANGDONG UNIV OF TECH