CN104308865A - Medical scissors with cutting edge line and machining method of cutting edge line - Google Patents
Medical scissors with cutting edge line and machining method of cutting edge line Download PDFInfo
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- CN104308865A CN104308865A CN201410533276.6A CN201410533276A CN104308865A CN 104308865 A CN104308865 A CN 104308865A CN 201410533276 A CN201410533276 A CN 201410533276A CN 104308865 A CN104308865 A CN 104308865A
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- cutting edge
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- scissor blade
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Abstract
The invention relates to the field of medical scissors and discloses a pair of medical scissors with cutting edge lines and a machining method of the cutting edge line. The medical scissors comprise a left scissor blade, a right scissor blade, a left scissor handle which is structurally integrated with the left scissor blade and a right scissor handle which is structurally integrated with the right scissor blade, the left scissor blade and the right scissor blade are hinged through a pin shaft, the pin shaft is located between the heads and the tails of the left scissor blade and the right scissor blade and is fixedly arranged on the left scissor blade, and the tails of face-to-face surfaces and the cutting edges of the left scissor blade and the right scissor blade are provided with cutting edge lines. Compared with the prior art, due to the existence of the cutting edge lines at the tails of the face-to-face surfaces and the cutting edges of the two scissor blades, contact surfaces of the left scissor blade and the right scissor blade are not fit too tightly during closing, the friction coefficient is reduced and the situation that the service life is shortened due to friction between the two cutting edges is avoided; in addition, after the friction coefficient is reduced, a user can more easily and flexibly open and close the left scissor blade and the right scissor blade through the left scissor handle and the right scissor handle.
Description
Technical field
The present invention relates to hospital scissors field, particularly a kind of have the hospital scissors of cutting edge line and the processing method of cutting edge line.
Background technology
Needs owing to shearing in prior art, two, left and right cutting edge cutting edge when closed of hospital scissors generally can paste and tighter, frictional force between two cutting edges is comparatively large, and when hospital scissors is just brought into use because frictional force is comparatively large, user's use is cut handle and opened and easy and flexible inadequate during closed cutting edge; After hospital scissors service time is of a specified duration, can the laminating between two panels cutting edge be made gradually to fluff due to the long-term friction between two cutting edges again, finally can not meet shearing requirement, the hospital scissors life-span be shorter.
Summary of the invention
goal of the invention:for problems of the prior art, the invention provides and a kind of there is the hospital scissors of cutting edge line and the processing method of cutting edge line, the coefficient of friction between the two panels cutting edge of left and right can be reduced, promote cutting edge service life, when user uses more nimbly and freely.
technical scheme:the invention provides a kind of hospital scissors with cutting edge line, by left and right two panels cutting edge with cut handle with two, the left and right that left and right two panels cutting edge is respectively integrative-structure and form, left and right two panels cutting edge passes through hinge, described bearing pin is between the head and afterbody of left and right two panels cutting edge, and be fixed on left cutting edge, at afterbody and the cutting edge place of described left and right two panels cutting edge opposite face and all have cutting edge line.
Preferably, the width of described cutting edge line is 0.1 ~ 0.3 millimeter.
Preferably, described cutting edge line is overlapped when described left and right two panels cutting edge closes.
Preferably, described left and right two panels cutting edge is straight peen cutting edge, and it is 32Cr13Mo(C that handle is cut in described left and right two panels cutting edge and two, left and right) or 3Cr13Mo(C) Steel material, described bearing pin is 12Cr18Ni9 or 1Cr18Ni9 Steel material; Or described left and right two panels cutting edge is elbow cutting edge, it is 4Cr13Mo(C that handle is cut in described left and right two panels cutting edge and two, left and right) Steel material, described bearing pin is 1Cr18Ni9 Steel material.
Preferably, described left and right two panels cutting edge is straight peen cutting edge, and two panels straight peen cutting edge sky cuts closing force≤4.4 N; Or described left and right two panels cutting edge is elbow cutting edge, two panels elbow cutting edge sky cuts closing force≤5.4 N.
Preferably, the Rockwell hardness of described left and right two panels cutting edge is 50 ~ 58, and Rockwell hardness between the two panels cutting edge of described left and right poor≤4.
Preferably, described left and right two panels cutting edge, described two cutting edge lines and two, described left and right cut the roughness on handle surface all≤0.8 micron, remainder surface roughness≤3.2 micron of described hospital scissors.
Further, the processing method of described cutting edge line is as follows: polish described cutting edge line respectively at the afterbody of described left and right two panels cutting edge opposite face and cutting edge place; Polishing is carried out to described cutting edge line; Vacuum heat is carried out to whole described hospital scissors.
beneficial effect:in the present invention, the afterbody of the left and right two panels cutting edge opposite face of hospital scissors and cutting edge place are respectively polished the cutting edge line with one fixed width, the position be equivalent to left and right two panels cutting edge needs when closed contact with each other polishes off some materials, what two panels cutting edge contact surface when closed in left and right was fitted can not be too tight, coefficient of friction reduces, and avoids two cutting edges because rubbing reduction of service life; In addition, coefficient of friction reduce after, user by two, left and right cut handle open with closed left and right two panels cutting edge also relative more nimbly and freely.
Accompanying drawing explanation
Fig. 1 is left cutting edge of hospital scissors in the present invention and cuts the structural representation of handle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
embodiment 1:
Present embodiments provide for a kind of hospital scissors with cutting edge line, as shown in Figure 1, left and right two panels cutting edge 1 and two, the left and right of this hospital scissors are cut handle 2 and are structure as a whole and (only depict left cutting edge of hospital scissors in figure and cut handle, right cutting edge is with to cut handle identical with left, therefore right omission), the two is by the hinged composition hospital scissors of bearing pin 3, bearing pin 3 is between the two head and afterbody, and be fixedly connected with left cutting edge, when being cut handle 2 by left and right two panels and opening with closed left and right two panels cutting edge 1, ensure that bearing pin 3 rotates together with left cutting edge, must not stripped thread, bearing pin 3 also can change screw into and use, at the cutting edge place of left and right two panels cutting edge 1, the afterbody of the opposite face of left and right two panels cutting edge 1 and cutting edge place be also provided with the cutting edge line 4 that width is 0.1 ~ 0.3 millimeter, it is in order to avoid cutting edge laminating tension when left and right two panels cutting edge 1 closes that cutting edge line 4 has certain width, extends cutting edge service life, in addition in order to reach better shear effect, when left and right two panels cutting edge 1 closes, two cutting edge lines 4 are overlapped.
The difference of hardness of above-mentioned left and right two panels cutting edge 1 can not be too large, in order to avoid affect shear effect, in present embodiment, the Rockwell hardness of left and right two panels cutting edge 1 controls between 50 ~ 58, and the Rockwell hardness difference between left and right two panels cutting edge 1 is less than or equal to 4; Position in addition owing to directly contacting when left and right two panels cutting edge 1 and two cutting edge lines 4 are and shear, in order to reduce friction, promote and open with flexibility ratio time closed, extend hospital scissors service life, it is lower that surface roughness generally designs, and controls be less than or equal to 0.8 micron; It is user's handgrip parts that handle 2 is cut in two, left and right, and in order to promote user's impression, the roughness one on surface is also controlling be less than or equal to 0.8 micron; The remainder surface roughness of hospital scissors then requires so not high, and general control is being less than or equal to 3.2 microns.
In present embodiment, above-mentioned left and right two panels cutting edge 1 also can be able to be elbow cutting edge for straight peen cutting edge, if straight peen cutting edge, then left and right two panels cutting edge 1 and two, left and right are cut handle 2 and are used 32Cr13Mo(C) Steel material makes, bearing pin 3 uses 12Cr18Ni9 Steel material to make, in addition in order to ensure shear effect, the sky between left and right two panels cutting edge 1 is cut closing force and will be controlled be less than or equal to 4.4 Ns; If elbow cutting edge, then left and right two panels cutting edge 1 and two, left and right are cut handle 2 and are used 4Cr13Mo(C) Steel material makes, and bearing pin 3 uses 1Cr18Ni9 Steel material to make, and the sky between left and right two panels cutting edge 1 is cut closing force and will be controlled be less than or equal to 5.4 Ns.
The cutting edge line 4 with one fixed width is respectively polished at the afterbody of left and right two panels cutting edge 1 opposite face of hospital scissors and cutting edge place in present embodiment, when left and right two panels cutting edge 1 closes, cutting edge line 4 is overlapped, cutting edge line 4 is equivalent to polish off the material at position of contacting with each other when some left and right two panels cutting edges 1 close, what the contact surface of left and right two panels cutting edge 1 when closed was fitted can not be too tight, coefficient of friction reduces, and avoids two cutting edges because rubbing reduction of service life; In addition, coefficient of friction reduce after, user by two, left and right cut handle 2 open with closed left and right two panels cutting edge 1 also relative more nimbly and freely.
embodiment 2:
Present embodiments provide for the processing method with cutting edge line 4 in the hospital scissors of cutting edge line 4 described in a kind of embodiment 1, first respectively polish at the afterbody of left and right two panels cutting edge 1 opposite face and cutting edge place the cutting edge line 4 that width is 0.1 ~ 0.3 millimeter, in this process, 3000 object emery wheels can be used to polish to cutting edge, again polishing is carried out to two cutting edge lines 4 after polishing, the roughness of two cutting edge lines 4 is made to be less than or equal to 0.8 micron, finally vacuum heat is carried out to whole hospital scissors, heat treated object is to make the hardness of left and right two panels cutting edge 1 reach 50 ~ 58HRC, and ensure that the difference of hardness of left and right two panels cutting edge 1 is less than or equal to 4HRC.
Above-mentioned embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to Spirit Essence of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (8)
1. one kind has the hospital scissors of cutting edge line, cut handle (2) by left and right two panels cutting edge (1), two, left and right being respectively integrative-structure with left and right two panels cutting edge (1) to form, left and right two panels cutting edge (1) is hinged by bearing pin (3), between the head that described bearing pin (3) is positioned at left and right two panels cutting edge (1) and afterbody, and be fixed on left cutting edge, it is characterized in that, at the afterbody of described left and right two panels cutting edge (1) opposite face and cutting edge place, all there is cutting edge line (4).
2. the hospital scissors with cutting edge line according to claim 1, is characterized in that, the width of described cutting edge line (4) is 0.1 ~ 0.3 millimeter.
3. the hospital scissors with cutting edge line according to claim 1, is characterized in that, described cutting edge line (4) is overlapped when described left and right two panels cutting edge (1) is closed.
4. the hospital scissors with cutting edge line according to any one of claim 1 to 3, it is characterized in that, described left and right two panels cutting edge (1) is straight peen cutting edge, it is 32Cr13Mo(C that handle (2) is cut in described left and right two panels cutting edge (1) and two, left and right) or 3Cr13Mo(C) Steel material, described bearing pin (3) is 12Cr18Ni9 or 1Cr18Ni9 Steel material; Or described left two panels cutting edge (1) is elbow cutting edge, and it is 4Cr13Mo(C that handle (2) is cut in described left and right two panels cutting edge (1) and two, left and right) Steel material, described bearing pin (3) is 1Cr18Ni9 Steel material.
5. the hospital scissors with cutting edge line according to any one of claim 1 to 3, is characterized in that, described left and right two panels cutting edge (1) is straight peen cutting edge, and two panels straight peen cutting edge sky cuts closing force≤4.4 N; Or described left and right two panels cutting edge (1) is elbow cutting edge, two panels elbow cutting edge sky cuts closing force≤5.4 N.
6. the hospital scissors with cutting edge line according to any one of claim 1 to 3, is characterized in that, the Rockwell hardness of described left and right two panels cutting edge (1) is 50 ~ 58, and Rockwell hardness between described left and right two panels cutting edge (1) poor≤4.
7. the hospital scissors with cutting edge line according to any one of claim 1 to 3, it is characterized in that, described left and right two panels cutting edge (1), described cutting edge line (4) and two, described left and right cut the roughness on handle (2) surface all≤0.8 micron, remainder surface roughness≤3.2 micron of described hospital scissors.
8. the hospital scissors with cutting edge line according to claim 1, is characterized in that, the processing method of described cutting edge line (4) is as follows:
Described cutting edge line (4) is polished respectively at the afterbody of described left and right two panels cutting edge (1) opposite face and cutting edge place;
Polishing is carried out to described cutting edge line (4);
Vacuum heat is carried out to whole described hospital scissors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533276.6A CN104308865A (en) | 2014-10-11 | 2014-10-11 | Medical scissors with cutting edge line and machining method of cutting edge line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533276.6A CN104308865A (en) | 2014-10-11 | 2014-10-11 | Medical scissors with cutting edge line and machining method of cutting edge line |
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| CN104308865A true CN104308865A (en) | 2015-01-28 |
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| CN201410533276.6A Pending CN104308865A (en) | 2014-10-11 | 2014-10-11 | Medical scissors with cutting edge line and machining method of cutting edge line |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000157752A (en) * | 1998-11-27 | 2000-06-13 | Tadamasa Nakamura | Scissors |
| KR20070016328A (en) * | 2005-08-03 | 2007-02-08 | 정총묵 | Scissors and manufacturing method thereof |
| CN101274435A (en) * | 2007-03-27 | 2008-10-01 | 福鼎市大吉刀剪五金有限公司 | Sewing scissors and manufacturing method thereof |
| JP2008272141A (en) * | 2007-04-27 | 2008-11-13 | Saiki:Kk | Manufacturing method of hairdresser's scissors |
| CN202982098U (en) * | 2012-12-21 | 2013-06-12 | 中国人民解放军第二军医大学 | Medical suture scissors |
| CN203854021U (en) * | 2013-04-01 | 2014-10-01 | 普乐士株式会社 | Office scissors |
| CN204136072U (en) * | 2014-10-11 | 2015-02-04 | 张家港市双银医疗器械有限公司 | There is the hospital scissors of cutting edge line |
-
2014
- 2014-10-11 CN CN201410533276.6A patent/CN104308865A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000157752A (en) * | 1998-11-27 | 2000-06-13 | Tadamasa Nakamura | Scissors |
| KR20070016328A (en) * | 2005-08-03 | 2007-02-08 | 정총묵 | Scissors and manufacturing method thereof |
| CN101274435A (en) * | 2007-03-27 | 2008-10-01 | 福鼎市大吉刀剪五金有限公司 | Sewing scissors and manufacturing method thereof |
| JP2008272141A (en) * | 2007-04-27 | 2008-11-13 | Saiki:Kk | Manufacturing method of hairdresser's scissors |
| CN202982098U (en) * | 2012-12-21 | 2013-06-12 | 中国人民解放军第二军医大学 | Medical suture scissors |
| CN203854021U (en) * | 2013-04-01 | 2014-10-01 | 普乐士株式会社 | Office scissors |
| CN204136072U (en) * | 2014-10-11 | 2015-02-04 | 张家港市双银医疗器械有限公司 | There is the hospital scissors of cutting edge line |
Non-Patent Citations (1)
| Title |
|---|
| 国家食品药品监督管理局: "《中华人民共和国医药行业标准YY/T0176-2006》", 19 June 2006, article "医用剪通用技术条件", pages: 1-3 * |
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Application publication date: 20150128 |