CN104546110A - Bender for Kirschner wire for orthopedics - Google Patents
Bender for Kirschner wire for orthopedics Download PDFInfo
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- CN104546110A CN104546110A CN201310510686.4A CN201310510686A CN104546110A CN 104546110 A CN104546110 A CN 104546110A CN 201310510686 A CN201310510686 A CN 201310510686A CN 104546110 A CN104546110 A CN 104546110A
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- Prior art keywords
- base
- rotating shaft
- kirschner wire
- block
- kirschner
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
Abstract
The invention discloses a bender for a Kirschner wire for orthopedics. A shaping core block is fixedly arranged on a base, a shaft hole is formed in a base, a rotary shaft is arranged in the shaft hole and extends out of the shaft hole to form a limiting column, the Kirschner wire is located jointly by the limiting column and the shaping core block, and a shifting block is fixed by the rotary shaft through a connector. In the prior art, a clamp is adopted, and the Kirschner wire is often clamped firstly and then is forcibly bent in a clamped state, thus, the operation is time-consuming and labor-consuming; according to the bender, the Kirschner wire is shifted to be bent around the shaping core block by the shifting block which rotates around the rotary shaft, so as to form standard hook-shaped bends.
Description
Technical field
The present invention relates to a kind of surgical medical equipment, particularly relate to a kind of orthopedic kirschner pin lever.
Background technology
The draw point that conventional Kirschner wire is fixed as knochenbruch docking in bone surgery, general Kirschner wire is at about 20 centimeters, and diameter has different several specifications between 0.5 ~ 3 millimeter.For fixing short and small fracture or the little fracture fixation of avulsion fracture iso-stress, be also often used in the fixing of interim sclerite in bone surgery.Can according to the size of docking skeleton in operation, Kirschner wire draw point is cut out, then Kirschner wire draw point is inserted to bore in empty skeleton and be fixed, and will the draw point bending outside skeleton be exposed, sting out skin to prevent the backshank staying bone surface or the surface of bone and cannot in the future taking out of submerging.Normal application needle holder or binding clip complete bending work at present, often compare and waste time and energy, publication number is the handle in CN87212315U patent must 90-degree rotation can be that u-shaped is curved by Kirschner wire folding, and in Forging Process, the side plane of pressing block contacts with Kirschner wire all the time.
Adopt binding clip in prior art, first vise Kirschner wire often, then exert oneself its bending under the state of vising, waste time and energy, the shifting block that the present invention rotates around the axis stirs the hook-shaped elbow that Kirschner wire winding forming pellet is bent to form standard again.
Summary of the invention
Object of the present invention is just to provide a kind of orthopedic kirschner pin lever, to solve in prior art the problem wasted time and energy adopting needle holder or binding clip to complete bending work existence.
For achieving the above object, the present invention is by the following technical solutions: a kind of orthopedic kirschner pin lever, molding pellet is fixed on base, base is provided with block, block and pellet form the groove clamping Kirschner wire, the shifting block be connected with base rotation is used for stirring Kirschner wire, and Kirschner wire is rolled over for U-shaped curved by the salient angle contacted with Kirschner wire when shifting block stirs Kirschner wire.
Described block is active block stop, and active block stop moves to clamp Kirschner wire to pellet.
Described active block stop and the rotating shaft be arranged on base link.
Described active block stop and the rotating shaft be arranged on base link, and active block stop and rotating shaft form slider-crank mechanism.
Described active block stop and rotating shaft form slider-crank mechanism, and base is provided with axis hole, is provided with rotating shaft in axis hole, and rotating shaft is stretched out axis hole and formed limited post, and limited post and molding pellet are located Kirschner wire jointly, and rotating shaft fixes shifting block by connector; Described rotating shaft, connector and shifting block form rotatable parts; Described block is placed in loose slot, and limited post is cam, and block is connected with the cam of rotating shaft and links.
Described active block stop and rotating shaft form slider-crank mechanism, active block stop is connected with the Compress Spring one end of the chute be placed on base, the binding clip side of described base and binding clip is solidified as a whole, and binding clip main shaft arranges cam, and active block stop is by the cam linkage of Compress Spring and main shaft.
Described active block stop and the rotating shaft be arranged on base link, and active block stop is elastic component, and elastic component forms support lever by support member, and one end of elastic component and pellet clamp Kirschner wire, and binding clip main shaft arranges the other end of briquetting pressing elastic component.
Described base arranges back-moving spring, resets for elastic component.
Described base arranges locating part, prevents elastic component from deviating from.
A kind of orthopedic kirschner pin lever, molding pellet is fixed on base, base is provided with block, block and pellet form the groove clamping Kirschner wire, the shifting block be connected with base rotation is used for stirring Kirschner wire, it is characterized in that: Kirschner wire is rolled over for U-shaped curved by the salient angle contacted with Kirschner wire when shifting block stirs Kirschner wire.
The direction of described salient angle is oblique below.
Described salient angle is arcuation.
Described arcuation is arc-shaped.
Described salient angle is horn shape.
A kind of orthopedic kirschner pin lever, molding pellet is fixed on base, base is provided with block, block and pellet form the groove clamping Kirschner wire, the shifting block be connected with base rotation is used for stirring Kirschner wire, shifting block is in the process of stirring, and shifting block has two faces to contact with Kirschner wire, by Kirschner wire folding for U-shaped curved.
Described base is provided with block, is base consolidation block.
The described shifting block be connected with base rotation is used for stirring Kirschner wire, for base back surface establishes axle, is socketed on axle with the connector that shifting block is fixing.
The binding clip side of described base and binding clip is solidified as a whole, and the opposite side of described binding clip, as guide rod, links between guide rod and connector.
Linking between described guide rod and connector, for being connected by connecting rod between guide rod with connector, forming linkage.
Described linkage, the length of guide rod is greater than the length of connector.When such guide rod rotates, the angle that connector rotates is greater than the angle that guide rod rotates.
Described base and guide rod connecting handle respectively.
A kind of orthopedic kirschner pin lever, molding pellet is fixed on base, and base is provided with axis hole, is provided with rotating shaft in axis hole, and rotating shaft is stretched out axis hole and formed limited post, and limited post and molding pellet are located Kirschner wire jointly, and rotating shaft fixes shifting block by connector; Described rotating shaft, connector and shifting block form rotatable parts.
Described base fixed stop, this block is located at around axis hole.
Described block is relative with pellet, and block is for fixation Kel's needle during bending.
Described block is the face protuberate basic unit that axis hole inner surface is relative with pellet, resists limited post when block is used for bending.
Described block is active block stop, and block and rotating shaft link.
Described block is placed in loose slot, and limited post is cam, and block is connected with the cam of rotating shaft and links.
Described limited post is cam, for limited post establishes side plane.Certainly, the face that block contacts with cam or limited post can be plane, the most easily processes like this, and in order to better clamp Kirschner wire, also can be other shape, cam also can be other shape, as long as better clamping Kirschner wire.
Described block is placed in loose slot, establishes crank between limited post and block, and block is connected with rotating shaft bent axle and links.
Described limited post establishes side plane.
The position that described shifting block contacts with Kirschner wire is arcuate groove.
The position that described limited post contacts with Kirschner wire arranges annular groove.
The binding clip side of described base and binding clip is solidified as a whole, and the opposite side of described binding clip is as guide rod, and rotating shaft fixed crank, links between guide rod and crank.
Link between described guide rod and crank, instruct between bar and crank and slide block interlock is set.
Link between described guide rod and crank, instruct and between bar and crank, straight pin is set and slot fit links.
Described straight pin and slot fit link, and crank is established hangers shape groove, straight pin established by guide rod, and straight pin and hangers shape groove mount.
The described binding clip side be solidified as a whole with base is 0-180 degree with the hands of this side binding clip one the angle with base base.
The hands of this side binding clip described is 90-180 degree the angle with base base.
Link between the rotating shaft of described guide rod and handle.
Link between the rotating shaft of described guide rod and handle, between the rotating shaft of guide rod and the rotating shaft of handle, meshed gears is set.
Described gear is sector gear.
Described guide rod is set to bending.
Between the handle of described binding clip, back-moving spring is set.
Connected by gears meshing between the pincers rotating shaft of described rotating shaft binding clip.
The inner side of described binding clip two handle forms jaw.
The handle arranged outside of the described binding clip be connected with base has measurement bar, measures bar and is movably arranged on handle, and handle is provided with and the groove measured bar and match, and handle is also provided with the pin hole matched with jaw.
The central axis of described hangers shape groove is any one in straight line, camber line and broken line.
Rotating shaft position-limit mechanism is provided with between described rotatable parts and base.
Described rotating shaft position-limit mechanism refer to stretch out axis hole rotating shaft part on be provided with draw-in groove, be provided with the jump ring blocking rotating shaft in draw-in groove.
The shifting block that described rotating shaft position-limit mechanism refers to rotatable parts is provided with the groove blocking base edge, and the face that base contacts with groove is arcwall face.
The connector that described rotating shaft position-limit mechanism refers to rotatable parts is provided with "T"-shaped projection, base is provided with the "T"-shaped groove matched with "T"-shaped projection.
The shifting block that described position-limit mechanism refers to rotatable parts is provided with projection, base is provided with the groove matched with this projection.
Line between the center of the main shaft of described binding clip and the end of binding clip handle be connected with base, the minimum angle between this line and base lower surface is 0o-50o.
Described limited post is provided with side plane.
Described side plane to the distance in limited post axle center is less than the distance to limited post axle center at the bottom of annular groove.
Accompanying drawing explanation
Fig. 1 is explosive view of the present invention.
Fig. 2 is working side view of the present invention.
Fig. 3 is transmission power side view of the present invention.
Fig. 4 is the just front schematic diagram that display shifting block of the present invention adds groove.
Fig. 5 is the schematic side view of display limited post cannelure of the present invention.
Fig. 6 is the elevational schematic view of display limited post cannelure of the present invention.
Fig. 7 is interaction relation rough schematic view one between rotating shaft of the present invention and main shaft.
Fig. 8 is interaction relation rough schematic view two between rotating shaft of the present invention and main shaft.
Fig. 9 is interaction relation rough schematic view three between rotating shaft of the present invention and main shaft.
Figure 10 is work process schematic diagram one of the present invention.
Figure 11 is work process schematic diagram two of the present invention.
Figure 12 is the structural representation of display measurement bar of the present invention.
The hangers shape groove structural representation of Figure 13 to be central axis be straight line.
The hangers shape groove structural representation of Figure 14 to be central axis be camber line.
The hangers shape groove structural representation of Figure 15 to be central axis be broken line.
Figure 16 is side view of the present invention.
Figure 17 is along A-A line sectional view in Figure 16.
Figure 18 is the second sectional view along A-A line in Figure 16.
Figure 19 is the third sectional view along A-A line in Figure 16.
Figure 20 is the 4th kind of sectional view along A-A line in Figure 16.
Figure 21 is the rearview of Figure 16.
Figure 22 is the axle side schematic diagram of Figure 21.
Figure 23 is that hands is greater than 90 degree of structural representations the angle with base base.
Figure 24 is that hands is greater than 90 degree of another structural representations the angle with base base.
Figure 25 establishes gear structure schematic diagram between guide rod rotating shaft and handle rotating shaft.
Figure 26 arranges stop block structure schematic diagram around axis hole.
Figure 27 arranges another viewing angle constructions schematic diagram of block around axis hole.
Figure 28 is structural representation of the present invention.
Figure 29 is another viewing angle constructions schematic diagram of Figure 27.
Figure 30 is another structural representation of the present invention.
Figure 31 is another viewing angle constructions schematic diagram of Figure 29.
Figure 32 is that shifting block 6 rotates front downside and right flank angle is less than 90 degree of structural representations.
Figure 33 is that shifting block 6 rotates front lower lateral parts excision structural representation.
Figure 34 is explosive view of the present invention.
Figure 35 is structural representation of the present invention.
Figure 36 is clamping Kirschner wire positional structure schematic diagram.
Figure 37 is bending Kirschner wire positional structure schematic diagram.
Figure 38 is Kirschner wire folding is U-shaped positional structure schematic diagram.
Figure 39 extracts active block stop structural representation out.
Figure 40 is that guide rod 9 forms linkage pellet side structure schematic diagram with connector 31.
Figure 41 is that guide rod 9 forms linkage base back surface structural representation with connector 31.
Figure 42 is that shifting block establishes arc-shaped lobe formation schematic diagram.
Figure 43 is that shifting block establishes salient angle shape structural representation.
Figure 44 active block stop connects Compress Spring structural representation.
Figure 45 active block stop is elastomer structure schematic diagram.
Figure 46 elastomer establishes offsetting spring structure schematic diagram.
Detailed description of the invention
A kind of orthopedic kirschner pin lever, molding pellet 1 is fixed on base 5, base 5 is provided with block 19, block 19 and pellet 1 form the groove clamping Kirschner wire, the shifting block 6 be rotationally connected with base 5 is for stirring Kirschner wire, and Kirschner wire is rolled over for U-shaped curved by the salient angle 69 contacted with Kirschner wire when shifting block 6 stirs Kirschner wire.
Described block 19 is active block stop, and active block stop moves to clamp Kirschner wire to pellet 1.
1. orthopedic kirschner pin lever according to claim 2, is characterized in that: described active block stop and the rotating shaft be arranged on base 5 link.
Described active block stop and the rotating shaft be arranged on base 5 link, and active block stop and rotating shaft form slider-crank mechanism.
Active block stop and rotating shaft form slider-crank mechanism as described in Figure 39, base 5 is provided with axis hole 2, is provided with rotating shaft 3 in axis hole 2, and rotating shaft 3 is stretched out axis hole and formed limited post 4, limited post 4 and molding pellet 1 are located Kirschner wire jointly, and rotating shaft 3 fixes shifting block 6 by connector 31; Described rotating shaft 3, connector 31 and shifting block 6 form rotatable parts; Described block 191 is placed in loose slot 195, and limited post 4 is cam, and block 191 is connected with the cam of rotating shaft 3 and links.
As described in Figure 44, active block stop and rotating shaft form slider-crank mechanism, active block stop 193 is connected with Compress Spring 196 one end of the chute 194 be placed on base 5, described base 5 is solidified as a whole with the binding clip side of binding clip, binding clip main shaft 33 arranges cam 197, and active block stop 193 is linked by the cam 197 of Compress Spring 196 with main shaft 33.Cam Compress Spring 196 compresses, and Compress Spring 196 is the spring that intensity is very large, and Compress Spring 196 elastic force makes active block stop 193 compress Kirschner wire.
As described in Figure 45, active block stop and the rotating shaft be arranged on base (5) link, active block stop is elastic component 198, elastic component 198 forms support lever by support member 199, be bending elastic strip in elastic component 198(figure) one end and pellet 1 clamp Kirschner wire, binding clip main shaft 33 arranges the other end that briquetting 331 presses elastic component 198.Briquetting 331 presses one end of elastic component 198, and the other end of elastic component 198 tilts as seesaw and just compresses Kirschner wire.
As described in Figure 46, base 5 arranges back-moving spring 1981, resets for elastic component 198.Described base 5 arranges locating part 1982, prevents elastic component 198 from deviating from.
As Figure 42,43 1 kinds of orthopedic kirschner pin lever, molding pellet 1 is fixed on base 5, base 5 is provided with block 19, block 19 and pellet 1 form the groove clamping Kirschner wire, the shifting block 6 be rotationally connected with base 5 is for stirring Kirschner wire, and Kirschner wire is rolled over for U-shaped curved by the salient angle 69 contacted with Kirschner wire when shifting block 6 stirs Kirschner wire.Such restriction, the face that shifting block 6 is contacted with Kirschner wire is not an only plane, but the connecting portion in two faces of side and below or two faces of side and below, can ensure that shifting block 6 rotates like this and be less than 180 degree, just can by Kirschner wire folding for u-shaped be curved; The angle of salient angle 69, relevant with the position of shifting block 6 rotating shaft; Stirring in the process of Kirschner wire at shifting block 6, contact if Kirschner wire departs from salient angle, is exactly so that the surface formed below salient angle 69 contacts with Kirschner wire, by Kirschner wire folding for u-shaped is curved.
The direction of described salient angle 69 is oblique below.
Described salient angle 69 is arcuation.
Described arcuation is arc-shaped.
Described salient angle 69 is horn shape.
A kind of orthopedic kirschner pin lever, molding pellet 1 is fixed on base 5, base 5 is provided with block 19, block 19 and pellet 1 form the groove clamping Kirschner wire, the shifting block 6 be rotationally connected with base 5 is for stirring Kirschner wire, shifting block 6 is in the process of stirring, and shifting block 6 has two faces to contact with Kirschner wire, by Kirschner wire folding for U-shaped curved.
Described base 5 is provided with block 19, is base 5 consolidation block 19.
The described shifting block 6 be rotationally connected with base 5, for stirring Kirschner wire, for axle 39 is established at base 5 back side, is socketed on axle 39 with the connector 31 that shifting block 6 is fixing.
Described base 5 is solidified as a whole with the binding clip side of binding clip, and the opposite side of described binding clip, as guide rod 9, links between guide rod 9 and connector 31.
Linking between described guide rod 9 and connector 31, for being connected by connecting rod 38 between guide rod 9 with connector 31, forming linkage.
Described linkage, the length of guide rod 9 is greater than the length of connector 31.When such guide rod 9 rotates, the angle that connector 31 rotates is greater than the angle that guide rod 9 rotates.
Described base 5 and guide rod 9 connecting handle respectively.
As shown in Figure 1, Figure 2 and Figure 3, molding pellet 1 is fixed on base 5, base 5 is provided with axis hole 2, is provided with rotating shaft 3 in axis hole 2, and rotating shaft 3 is stretched out axis hole and formed limited post 4, limited post 4 and molding pellet 1 are located Kirschner wire 19 jointly, rotating shaft 3 fixes shifting block 6 by connector 31, and like this, molding pellet 1 and limited post 4 are by spacing for Kirschner wire 19, rotating shaft 3 is rotated, and shifting block 6 is stirred Kirschner wire 19 winding forming pellet 1 and is bent to form hook-shaped elbow.
Not slippage in the process of Kirschner wire 19 is stirred in order to make shifting block 6, the position that can contact with Kirschner wire 19 on shifting block 6 arranges arcuate groove 61, arcuate groove 61 position is set as shown in Figure 4, make Kirschner wire 19 not with shifting block 6 slippage, the position that also can contact with Kirschner wire 19 on limited post 4 arranges annular groove 41, chute 41 position is set as shown in Figure 5 and Figure 6, make Kirschner wire 19 not with limited post 4 slippage; Certainly, although that Kirschner wire 19 can be made to be bent to form is hook-shaped for this situation, rotating shaft 3 is rotated more difficult.
In order to easy rotating shaft 3, need for rotating shaft 3 provides moment of torsion, and make rotating shaft 3 can rotate over 90 degree, for this reason, described base 5 is solidified as a whole with the binding clip side of binding clip, the opposite side of binding clip by binding clip folding for rotating shaft 3 provides moment of torsion, but the maximum angle of binding clip folding is generally 45 degree, want to make rotating shaft 3 rotate over 90 degree, speeder (namely deceleration device) will be set between the main shaft 33 of binding clip and rotating shaft 3, the sector gear of miter angle is such as fixed at main shaft 33, the sector gear of an angle of 90 degrees is fixed in rotating shaft 3, two sector gears engage completely, make main shaft 33 rotate 45 degree and drive rotating shaft 3 90-degree rotation, just can realize, certainly, sector gear also can be complete gear wheel, does not illustrate in this situation map.
As shown in Figure 7, at the main shaft 33 of binding clip, guide rod 9 is set, it is exactly the opposite side (the same with the slide block of linkage) of aforementioned binding clip, guide rod 9 is arranged slide block 10 the same with the slide block of linkage, slide block 10 can slide along guide rod 9, rotating shaft 3 arranges crank 11, crank 11 is connected with slide block 10, form crank guide rod mechanism, now guide rod 9 length is greater than crank 11 length, just can limit the movable length of slide block 10, the rotational angle of crank 11 is made to be less than 180 degree, crank 11 and guide rod 9 synchronous hunting, just crank 11 pendulum angle is greater than guide rod 9 pendulum angle, the ratio of adjustment crank 11 and guide rod 9 length, the folding angle being applicable to binding clip just can realize crank-swinging 90 °, this embodiment does following change, and crank 11 arranges slide block 10, and slide block 10 slides along crank 11, and guide rod 9 is connected with slide block, because crank 11 is shorter, as shown in Figure 8, reaches the object of crank 11 and guide rod 9 synchronous hunting equally, another kind of situation, as shown in Figure 9, two slide blocks that can rotate each other 10 slide simultaneously on crank 11 and guide rod 9 simultaneously, also the object of crank 11 and guide rod 9 synchronous hunting can be reached, concrete just selecting on guide rod 9 arranges slider I 101, crank is arranged slide block II 102, be rotationally connected by axle 103 between slider I 101 and slide block II 102, as long as in fact link between crank 11 and guide rod 9, crank 11 and guide rod 9 synchronous hunting just can be made, the parts of interlock are not limited to slide block 10 etc., and above-mentioned interlock form, can reach with straight pin is same with the form of slot fit.
The form of described straight pin and slot fit is: for establishing hangers shape groove 111 on crank 11, straight pin 91 established by guide rod 9, and straight pin 91 and hangers shape groove 111 mount.
The described binding clip side be solidified as a whole with base 5 is 0-180 degree with the hands of this side binding clip one 81 and the angle a on base 5 base.
The hands of this side binding clip is 90-180 degree 81 and the angle a on base 5 base.Like this, the tiger's jaw of hands props up the handle 81, four fixing with base 5 and refers to move handle 82, and make in Forging Process, base 5 is stablized, and more meets the ergonomics of the state of holding.
Link between the rotating shaft of described guide rod 9 and handle 82.
Link between the rotating shaft of described guide rod 9 and handle 82, between the rotating shaft of guide rod 9 and the rotating shaft of handle 82, meshed gears 91,92 is set.Described gear is sector gear.Equally, the tiger's jaw of hands props up the handle 81, four fixing with base 5 and refers to move handle 82, and make in Forging Process, base 5 is stablized, and more meets the ergonomics of the state of holding.Sector gear saves space.
Above-mentioned guide rod 9 is set to bending, exerts oneself large when being conducive to bending, state firmly little during reset.
As shown in Figure 5, between the handle 8 of binding clip, back-moving spring 100 can be set.
During use, binding clip handle 8 of holding with a firm grip, binding clip closes, guide rod 9 upwards rotates, and straight pin 91 drives hangers shape groove 111 upwards to rotate, as shown in Figure 10, thus driving shifting block 6 to rotate, shifting block 6 is stirred Kirschner wire 19 winding forming pellet 1 and is bent to form hook-shaped elbow, as shown in figure 11; Unclamp binding clip handle 8, handle 8 opens by the back-moving spring 100 between handle 8, and binding clip opens, and guide rod 9 rotates, and straight pin 91 drives hangers shape groove 111 to rotate, thus drives shifting block 6 to reset.
The inner side of above-mentioned binding clip two handle forms jaw 14.This jaw can be cut off longer Kirschner wire, easy to use, reaches multi-purpose object.
The handle arranged outside of the binding clip be connected with base as above-mentioned in Figure 12 has measures bar 7, measures bar 7 and is movably arranged on handle, and handle is provided with and the groove 12 measured bar 7 and match, and handle is also provided with the pin hole 13 matched with jaw 14.The length measuring bar needs the length of dogleg section identical with Kirschner wire, when deployed, Kirschner wire is passed from pin hole, measure the skin that bar props up people, Kirschner wire length reserved is like this consistent with needing the length of dogleg section, and the part of stretching out pin hole is cut off by jaw.
The central axis of above-mentioned hangers shape groove 111 is straight line, as shown in figure 13.As shown in Figure 14, Figure 15, the central axis of hangers shape groove 111 can also be camber line or broken line.The hangers shape groove of different structure all can realize the object used, and in actual production process, can make the hangers shape groove of various structures as required.
As shown in Figure 17, Figure 18, Figure 19 and Figure 20, between rotatable parts and base 5, being provided with rotating shaft position-limit mechanism, deviating from for preventing rotating shaft.
As shown in figure 17, rotating shaft position-limit mechanism refer to stretch out axis hole rotating shaft part on be provided with draw-in groove, be provided with the jump ring 15 blocking rotating shaft in draw-in groove.
As shown in figure 18, the shifting block 6 that rotating shaft position-limit mechanism refers to rotatable parts is provided with the groove blocking base 5 edge, and the face that base contacts with groove is arcwall face.
As shown in figure 19, the connector that rotating shaft position-limit mechanism refers to rotatable parts is provided with "T"-shaped projection 16, base is provided with the "T"-shaped groove matched with "T"-shaped projection 16.
As shown in figure 20, the shifting block that position-limit mechanism refers to rotatable parts is provided with projection 17, base 5 is provided with the groove matched with this projection 17.
As shown in figure 17, the line between the center of the main shaft of binding clip and the end of binding clip handle be connected with base, the minimum angle a between this line and base lower surface is 0o-50o, to adapt at differing tilt angles Kirschner wire bending.
As shown in figure 21 and figure, limited post is provided with side plane 18, this side plane 18 is when shifting block is stirred for compressing Kirschner wire, and shifting block rotates very little angle, and the face of cylinder just can be made to compress Kirschner wire; Side plane 18 can be parallel with face of stirring 19 original state of shifting block, also can you are not parallel, and stirring face 61 can be face, also can be line.
Described block 191 is active block stop, and block 191 and rotating shaft 3 link.
Described block 191 is placed in loose slot 195, and limited post 4 is cam, and block 191 is connected with the cam of rotating shaft 3 and links.
As described in Figure 39-41, limited post 4 is cam 41, for limited post 4 establishes side plane 18.Certainly, the face that block 191 contacts with cam or limited post 4 can be plane, the most easily processes like this, and in order to better clamp Kirschner wire, also can be other shape, cam also can be other shape, as long as better clamping Kirschner wire.
During work, shifting block rotates very little angle, limited post 4 just can be made to transfer face of cylinder compressing block 191 to from side plane 18 move along loose slot, Kirschner wire is clamped in its clamping slot, and from root clamping, shifting block continues to stir, and is U-shaped by Kirschner wire bending, establish limiting component between block 191 and groove 195, anti-stop block 191 skids off.
Described block 191 is placed in loose slot, establishes crank between limited post 4 and block 191, and block 191 is connected with rotating shaft 3 bent axle and links.
The distance in side plane 18 to limited post axle center is less than the distance of annular groove 41 end to limited post axle center.When limited post upper side plane is in initial position, Kirschner wire is inserted between limited post and molding pellet, rotating shaft, on limited post, annular groove is spacing by Kirschner wire, prevent Kirschner wire from deviating from, when side plane to the distance in limited post axle center to be less than at the bottom of annular groove to the distance in limited post axle center, Kirschner wire can be compressed.
Described base 5 fixed stop 19, this block 19 is located at around axis hole 2.
Described block 191 is relative with pellet 1, and block 191 is for fixation Kel's needle during bending.When this is due to bending fixation Kel's needle, compress Kirschner wire when limited post 4 rotates, but when limited post 4 compresses Kirschner wire, contact surface is little, unsettled below contact surface, Kirschner wire easily goes out to tilt unsettled, and affect bending, arranging block 191 is to prevent Kirschner wire from tilting.
Described block 192 is the face protuberate basic unit 5 that axis hole 2 inner surface is relative with pellet 1, and block 192 is for resisting limited post 4 during bending.When limited post 4 compresses Kirschner wire bending, Kirschner wire has active force to limited post 4, and because limited post 4 is thinner, if the strength of materials is inadequate, easily occur distortion or fracture, block 192 pairs of limited posts 4 apply resistance, make limited post 4 bear pressure.
Claims (9)
1. an orthopedic kirschner pin lever, molding pellet (1) is fixed on base (5), base (5) is provided with block (19), block (19) and pellet (1) form the groove clamping Kirschner wire, the shifting block (6) be rotationally connected with base (5), for stirring Kirschner wire, is characterized in that: Kirschner wire is rolled over for U-shaped curved by the salient angle (69) contacted with Kirschner wire when shifting block (6) stirs Kirschner wire.
2. orthopedic kirschner pin lever according to claim 1, is characterized in that: described block (19) is active block stop, and active block stop is mobile to clamp Kirschner wire to pellet (1).
3. orthopedic kirschner pin lever according to claim 2, is characterized in that: described active block stop and the rotating shaft be arranged on base (5) link.
4. orthopedic kirschner pin lever according to claim 3, is characterized in that: described active block stop and the rotating shaft be arranged on base (5) link, and active block stop and rotating shaft form slider-crank mechanism.
5. orthopedic kirschner pin lever according to claim 3, it is characterized in that: described active block stop and rotating shaft form slider-crank mechanism, base (5) is provided with axis hole (2), rotating shaft (3) is provided with in axis hole (2), rotating shaft (3) is stretched out axis hole and is formed limited post (4), limited post (4) and molding pellet (1) are located Kirschner wire jointly, and rotating shaft (3) is by the fixing shifting block (6) of connector (31); Described rotating shaft (3), connector (31) and shifting block (6) form rotatable parts; Described block (191) is placed in loose slot (195), and limited post (4) is cam, and block (191) is connected with the cam of rotating shaft (3) and links.
6. orthopedic kirschner pin lever according to claim 3, it is characterized in that: described active block stop and rotating shaft form slider-crank mechanism, active block stop (193) is connected with Compress Spring (196) one end of the chute (194) be placed on base (5), described base (5) is solidified as a whole with the binding clip side of binding clip, binding clip main shaft (33) arranges cam (197), and active block stop (193) is linked by the cam (197) of Compress Spring (196) with main shaft (33).
7. orthopedic kirschner pin lever according to claim 3, it is characterized in that: described active block stop and the rotating shaft be arranged on base (5) link, active block stop is elastic component (198), elastic component (198) forms support lever by support member (199), one end and the pellet (1) of elastic component (198) clamp Kirschner wire, and binding clip main shaft (33) arranges the other end of briquetting (331) pressing elastic component (198).
8. orthopedic kirschner pin lever according to claim 7, is characterized in that: described base (5) arranges back-moving spring (1981), resets for elastic component (198).
9. orthopedic kirschner pin lever according to claim 1, is characterized in that: described base (5) arranges locating part (1982), prevents elastic component (198) from deviating from.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510686.4A CN104546110A (en) | 2013-10-26 | 2013-10-26 | Bender for Kirschner wire for orthopedics |
| PCT/CN2014/079027 WO2014190945A1 (en) | 2013-05-30 | 2014-05-30 | Kirschner wire bender used in orthopedics |
| CN201480030992.0A CN105491971B (en) | 2013-05-30 | 2014-05-30 | A kind of orthopedic kirschner pin bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510686.4A CN104546110A (en) | 2013-10-26 | 2013-10-26 | Bender for Kirschner wire for orthopedics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104546110A true CN104546110A (en) | 2015-04-29 |
Family
ID=53063929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310510686.4A Withdrawn CN104546110A (en) | 2013-05-30 | 2013-10-26 | Bender for Kirschner wire for orthopedics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104546110A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667570A (en) * | 2017-02-13 | 2017-05-17 | 四川曼赛思医药科技有限公司 | Orthopedic kirschner wire bending device |
| JP2018510691A (en) * | 2015-04-30 | 2018-04-19 | 鄭州澤正技術服務有限公司 | Kirschner Wire Bender |
| CN108338830A (en) * | 2017-01-22 | 2018-07-31 | 常州奥斯迈医疗器械有限公司 | Bender for bone plate |
| CN113545836A (en) * | 2014-11-07 | 2021-10-26 | 郑州泽正技术服务有限公司 | Steel needle bending device |
-
2013
- 2013-10-26 CN CN201310510686.4A patent/CN104546110A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113545836A (en) * | 2014-11-07 | 2021-10-26 | 郑州泽正技术服务有限公司 | Steel needle bending device |
| JP2018510691A (en) * | 2015-04-30 | 2018-04-19 | 鄭州澤正技術服務有限公司 | Kirschner Wire Bender |
| CN108338830A (en) * | 2017-01-22 | 2018-07-31 | 常州奥斯迈医疗器械有限公司 | Bender for bone plate |
| CN108338830B (en) * | 2017-01-22 | 2023-10-20 | 常州奥斯迈医疗器械有限公司 | Bone fracture plate bending device |
| CN106667570A (en) * | 2017-02-13 | 2017-05-17 | 四川曼赛思医药科技有限公司 | Orthopedic kirschner wire bending device |
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Application publication date: 20150429 |