CN102462544A

CN102462544A - Metal wire shear of orthodontic treatment balance corrector

Info

Publication number: CN102462544A
Application number: CN2011100697568A
Authority: CN
Inventors: 张国彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-23
Filing date: 2011-03-23
Publication date: 2012-05-23
Anticipated expiration: 2031-03-23
Also published as: CN102462544B

Abstract

The invention provides a metal wire shear, which is composed of a shear blade region, a joint region and a gripping region, wherein the gripping region is composed of a thumb hole, a finger pulp pressure rod, a rubber part, an expansion region, a force absorption seat and a third finger hole; the side face of the shear blade region is bent in an arc shape and bent sizes and positions are symmetrical; a shear blade is formed by inclining and defecting and the thickness of the outer side of the shear blade is more than that of the shear blade; a buffering belt is a part which is lack of a shear body after the shear blade is designed to be of a horizontal shape and the length of the buffering belt is more than that of the shear blade. Only one joint stagger groove of the joint region is located in a near gripping region and the joint stagger groove and a central line of the front side of the shear body are crossed to form an angle of 45 DEG; a joint central shaft is located in a joint central hole of a joint central area and the bottom of the joint stagger groove of the joint region is connected with the shear blade part. The thumb hole and the third finger hole are located at the outer side of the central line of the shear body and the finger pulp pressure rod is located in a far joint region of the thumb hole. A free end of the far joint region of the finger pulp pressure rod is of a bent shape; the thumb hole is of a front-side horizontal shape which is vertical to the shear body and a 'cross shape' is formed on the side face by the thumb hole and the shear body rubber.

Description

The wire scissors of mouth cavity orthodontic balance appliance

Affiliated field:

Be to be used for the use apparatus that ligation silk or arch wire are cut off in the mouth cavity orthodontic field in the balance fixed orthodontic, also can be used for the shearing of just abnormal guide plate.

Background technology:

Usually clinically, what be used for that the arch wire end cuts off unnecessary arch wire has only the terminal pincers of arch wire, when in use; Because the length of caliper is some weak point relatively; Usually very not smoothly operation under the wild situation of direct-view is used then more not smoothly aspect the ligation silk cutting off, cut off the ligation silk commonly used be crown scissors; This cuts and cuts the ligation silk in use and be easy to, but cuts the terminal free but difficulty very of arch wire.Usually can't fix free arch wire; Be prone to cause arch wire on cutting edge, to move and can not cut off smoothly; The length of crown scissors also exists too short and is difficult for the factor of touching simultaneously; Increase and correct the individual difficulty that cooperates, strengthen simultaneously and correct individual cooperate degree, align abnormal flow operations and often form unfavorable factor.

Summary of the invention:

According to the lever principle and the clinical instructions for use of physics, for instructing thinking, the position characteristics during according to orthodontic procedure is confirmed the form and the size of wire scissors with clinical operation technique.The total length of wire scissors is 160 millimeters, and wire scissors is to be made up of cutting edge district, hinge area and grip zone, and grip zone has thumbhole, abdominal pressure bar, rubber section, stretching area, subtracts power seat and unnamed foramina formation.The side form in cutting edge district is an arc-shaped bend; Crooked body size, the position symmetry of cutting; It is circular that positive form is point, and cutting edge is damaged formation that tilt, and the thickness as outside of cutting edge is greater than the thickness of cutting edge; Buffer strip is the part that cutting edge is designed to cut after horizontal the body disappearance, and the length of buffer strip is greater than the length of cutting edge; The length overall in cutting edge district is 25 millimeters, and length positive behind the bending forming is 20 millimeters, and the width of the nearly hinge area in cutting edge district is 10 millimeters, and the gross thickness of the nearly hinge area in cutting edge district is 8 millimeters; The thickness of cutting the point outside is 1 millimeter; The thickness of the nearly hinge area in cutting edge district is the straight line evolution process to the thickness of cutting the point outside; Edgewise bend cutting edge form, the damaged form of the inclination of cutting edge are sharp triangle form, and the direction of inclination is offside from the lateral; The thickness that is cutting edge portion disappearance is the thickest, and the thickness of cutting edge is identical.Blade at cutting edge is skewed; Be that the secondary that blade forms again on the basis that cutting edge tilts tilts; Blade thickness after the inclination is 1 millimeter, and after the front was shaped, the length of cutting edge was 18 millimeters; The length of buffer strip is 2 millimeters, and the width of buffer strip is promptly cut the narrow of point and nearly hinge area for wide two, centre.Hinge area is between cutting edge district and grip zone, and the length of hinge area is 20 millimeters, and wide is 10 millimeters; Thickness is 8 millimeters; The degree of depth of the staggered ditch in joint is 4 millimeters, and the staggered ditch in the joint of hinge area has only one to be in nearly grip zone, the staggered ditch in joint with cut body front center line and intersect and be miter angle.The articulation center axle is at the articulation center at hinge area center, and the bottom of the staggered ditch in the joint of hinge area links to each other with cutting edge portion, but is not parallel.The diameter in articulation center hole is 3.5 millimeters; Cutting bulk phase with another is the axis hole of articulation center axle for the position in articulation center hole; The longest air line distance of axis hole is less than the diameter in articulation center hole; The articulation center axle with cut bulk phase accordingly and be connected fixingly, the articulation center axle utilizes another to cut falling on the body and recessedly accomplishes two merging of cutting body through the articulation center axle, forms wire scissors.The length of grip zone is the longest zone of wire scissors, and the length of grip zone is 115 millimeters, and the width of two nearly hinge areas of grip zone respectively is 5 millimeters; Thickness respectively is 8 millimeters, and to subtracting power seat part, its width respectively is 5 millimeters; Thickness respectively is 5 millimeters, and the outer rim of grip zone is a smooth type of semiellipse form; The thumbhole of grip zone, abdominal pressure bar and rubber section are cut on the body at one, and the stretching area, subtract the power seat and unnamed foramina is cut on the body at another; Rubber section is corresponding with the position that subtracts the power seat, and thumbhole and unnamed foramina are in the outside of cutting the body center line, and the abdominal pressure bar is at the hinge area far away of thumbhole; The free-end of abdominal pressure bar is bending; Crooked direction be towards unnamed foramina, the form of thumbhole perpendicular to the positive level of cutting body to, in the side thumbhole with cut the bulk phase friendship and be " ten " word shape.The frontal width of abdominal pressure bar is 5 millimeters, and the thickness of abdominal pressure bar is 5 millimeters, and abdominal pressure bar section length is 70 millimeters; The form of rubber section is the semicircle bodily form, and its diameter is 5 centimetres, and subtracting the power seat is foursquare projection, and the height of projection is 0.5 millimeter, and the foursquare length of side is 5 millimeters, and subtracting the power seat is 10 millimeters apart from the length of unnamed foramina.Thumbhole be shaped as ellipse, the cross section of hole body is a half elliptic, the width in cross section is 5 millimeters, depth of section is 3 millimeters; The long straight line internal diameter of the interior Kongzui of thumbhole is 28 millimeters, and path length is 23 millimeters in the short lines, and the hinge area hole body far away of thumbhole is 20 millimeters apart from the rubber section distance; The shape of unnamed foramina also is oval; The cross section of hole body is a half elliptic, and the width in cross section is 5 millimeters, and the height in cross section is 3 millimeters; The long straight line internal diameter of the interior Kongzui of unnamed foramina is 28 millimeters; Short lines internal diameter is 23 millimeters, the nearly hinge area of unnamed foramina, hole body and subtract that distance is 10 millimeters between the power seat.Thumbhole is identical with size with the unnamed foramina shape, and thumbhole is different with the angle right with cutting bulk phase in the position of cutting on the body with unnamed foramina.The rubber section of wire scissors is high-elastic rubber, cuts body and all processes with medical stainless steel or medical steel, and the material of cutting edge portion can be manufactured with special metal or special alloy and form.

Accompanying drawing and description of drawings:

Fig. 1: the front of wire scissors

Fig. 2: the side of wire scissors

Detailed annotation: 1, cutting edge 2, articulation center axle 3, thumbhole 4, unnamed foramina 5, abdominal pressure bar 6, stretching area

Detailed annotation: 1, staggered ditch 8, buffer strip 9 of cutting edge 2, articulation center axle 3, thumbhole 4, unnamed foramina 5, abdominal pressure bar 6, stretching area 7, joint, cut point 10, rubber section 11, subtract the power seat

Specific embodiments:

When cutting off the ligation silk, at first open and correct individual lip buccal bicker with dental mirror, avoid soft tissue injury, cutting edge is opened; Ligation silk free-end is placed on the cutting edge, is pressed in the thumbhole, forefinger is placed on the stretching area, the third finger is put into unnamed foramina begin pressurization afterwards with thumb; Make cutting edge closed, can accomplish the free-end of cutting off the ligation silk, it should be noted that; The length of ligation silk free-end will confirm when cutting off, can not be long or too short, and be generally the 2-3 millimeter and be advisable.When cutting off the arch wire of free end; At first draw back the bicker of cheek side with dental mirror; With the arc point of cutting edge towards the corona side; With cutting edge or cut the arch wire that point is cut off free end, in the process of cutting, must note letting cutting edge clamping arch wire form slippage and the cheek side pipe is pulled down, form unnecessary trouble.When pruning guide plate,, can arbitrarily grasp according to specific circumstances owing to be extrabuccal operation.The abecedarian is because bad grasp feel; Can manufacture a little v notch v gently with the sand sheet in the tip of cutting edge; When cutting the free end arch wire, arch wire is put into breach and slippage can not occur; It should be noted that breach can only be cut on the body at one manufactures, if bilateral is all done the sharpness that can influence cutting edge.

Claims

1. wire scissors is to be made up of cutting edge district, hinge area and grip zone, it is characterized in that, grip zone has thumbhole, abdominal pressure bar, rubber section, stretching area, subtracts power seat and unnamed foramina formation.

2. wire scissors according to claim 1; It is characterized in that the side form in cutting edge district is an arc-shaped bend, crooked body size, the position symmetry of cutting; Cutting edge is damaged formation that tilt; The thickness as outside of cutting edge is greater than the thickness of cutting edge, and buffer strip is the part that cutting edge is designed to cut after horizontal the body disappearance, and the length of buffer strip is greater than the length of cutting edge.

3. wire scissors according to claim 1; It is characterized in that the staggered ditch in the joint of hinge area has only a place, at nearly grip zone; The staggered ditch in joint is 45 angles with cutting body front center line crossing; The articulation center axle is in the articulation center hole at hinge area center, and the bottom of the staggered ditch in the joint of hinge area links to each other with cutting edge portion, but is not parallel.

4. wire scissors according to claim 1 is characterized in that, the thumbhole of grip zone, abdominal pressure bar and rubber section are cut on the body at one, and the stretching area, subtracts the power seat and unnamed foramina is cut on the body at another; Rubber section is corresponding with the position that subtracts the power seat; Thumbhole and unnamed foramina are in the outside of cutting the body center line; The abdominal pressure bar is at the hinge area far away of thumbhole, and the free-end of abdominal pressure bar is bending, and crooked direction is towards unnamed foramina; The form of thumbhole is perpendicular to cutting the positive horizontal of body, in the side thumbhole with cut bulk phase and hand over and be " ten " word shape.

5. according to claim 1,2,3 and 4 described wire scissorses, it is characterized in that the rubber section of wire scissors is high-elastic rubber, cut body and all process that the material of cutting edge portion can be manufactured with specialty metal or special alloy and form with medical stainless steel or medical steel.