CN109833084A - Knee joint external fixer - Google Patents
Knee joint external fixer Download PDFInfo
- Publication number
- CN109833084A CN109833084A CN201711208913.2A CN201711208913A CN109833084A CN 109833084 A CN109833084 A CN 109833084A CN 201711208913 A CN201711208913 A CN 201711208913A CN 109833084 A CN109833084 A CN 109833084A
- Authority
- CN
- China
- Prior art keywords
- shin bone
- fixing component
- rod
- knee joint
- support rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Prostheses (AREA)
Abstract
The invention discloses a kind of knee joint external fixers, it include: fixing component on a shin bone, fixing component and one bone fixation member under a shin bone, wherein on the shin bone under fixing component and the shin bone between fixing component, it is at least universal connection or support by a main support rod and a support rod, the present invention is made to be adapted to the various angles that High Tibial Osteotomy struts tibial medial according to different patient demands；And in femur fixing component and the shin bone between fixing component, equipped with a joint component, to offset the pressure that femur is applied to medial side of tibial plateau, the joint component, which contains a protrusion, can relatively roll on a stacker of the joint component, slide, to answer knee joint during exercise, the rolling and traversing movement that femur is carried out on tibial plateau, making the present invention is that can be adapted for high tibial osteotomy operation or the operation of knee cartilage tissue repair in the external fixer installed outside patient legs.
Description
Technical field
The present invention relates to a kind of knee joint external fixers.
Background technique
At present for pathologic changes of knee joint, other than replacing artificial knee joint, high tibial osteotomy operation is also may be selected in sufferer
(HTO, High Tibial Osteotomy) or knee cartilage tissue repair operation, to eliminate lesion.
High tibial osteotomy is performed the operation (HTO, High Tibial Osteotomy), is to chamfer shin bone close at upper mounting plate
One of joint-cutting simultaneously struts, and to form wedge angle, reaches releasing by changing knee joint power axis to improve knee joint function
The lesion of sufferer gonalgia.After carrying out high tibial osteotomy operation, by the shin bone after osteotomy, usually there are two types of fixation sides
Formula, one is the fixation devices of internally-fixed, usually with integrally formed metal plate interlocking at the both ends for being cut shin bone, and
Be sewn, be coated on inside skin, this mode, to it is fixed be metal plate, since it is desired that being implanted in tissue
Portion, patient repel etc. other than adverse side effects in addition to tending to have, when occurring any discomfort in recuperation or after fully recovering, suffer from
Person must receive the operation for once carrying out dismantling the metal plate again, and show the fixation device of internally-fixed in high-order shin bone
The shortcomings that bone-culting operation.
Other than the fixation device of above-mentioned internally-fixed, high tibial osteotomy operation at present can also be by a kind of outer fixed
Fixation device, be fixed, such as Chinese invention patent case CN106420020A, it is postoperative to relate to a kind of Tibial osteotomy
Needle external fixer, including sliding locating rod 1, fixing screws 4, wing bolt 2 and sliding sleeve 3；The wherein sliding locating rod 1
Upper/lower terminal is sliding respectively to unify sliding sleeve 3, and is fixed with wing bolt 2 lock in the fixing screws 4 for being cut off shin bone both ends respectively,
And the sliding sleeve 3 is fastened in the sliding locating rod 1, to define the wedge angle opened by osteotomy ossa tibiale posterius (A as shown in figure 15
Or A ').Due to the situation overturn at the time of surgery, according to different sufferer tibial plateaus, doctor can be cut the angle at shin bone by opening
Spend size, orthotic knee joints axes, if Figure 15 shows, when the distracted wedge angle A at tibial cut, A ' are different, perpendicular to this
The vertical line (i.e. the installation site of the sliding locating rod 1) of fixing screws 4 can also change correspondingly, i.e., it is right to change upper and lower two sliding sleeve 3
Positive angle since the sliding locating rod 1 is the metallic rod of a rigidity, and can not be arbitrarily bent, thus can not be adapted to such
Angle change causes not installing, this structure is made to be unable to satisfy the demand of different sufferers.
Therefore, have recently disclose it is a kind of applied to high tibial osteotomy operation external fixer be as shown in figure 16
Fixing piece D containing a upper fixing element U and once, upper and lower fixing piece U, the D couple a middleware M respectively with bulb U1, a D1,
The angle corresponding relationship of upper and lower fixing piece U, the D and middleware M are adapted to by bulb U1, D1, it is above-mentioned to improve
The shortcomings that CN106420020A case, but still have the shortcomings that following:
1. upper fixing element U, middleware M and the lower fixing piece D are slightly in a straight line, shin bone upper mounting plate T1 is born
Resultant force F completely along a straight line downwards transmitting, i.e. middleware M only with single the fulcrum i.e. bulb U1 at support upper fixing element U,
However sufferer is during rehabilitation is completed in operation, and it is not yet stable by the shin bone tissue of osteotomy, it is cut off, distracted notch is not yet cured
Close, sufferer during exercise, weight w can't averagely be applied to everywhere in shin bone upper mounting plate T1, edge this, uneven stress, only
By single fulcrum, that is, bulb U1 support, shin bone upper mounting plate T1 is just be easy to cause to generate or be displaced overturning, changes the former knee corrected
Joints axes, unfavorable patient recovery, even result in operative failure.
2. limiting to and also can to the needle of fixed tibial since upper and lower fixing piece U, D and middleware M are arranged in a linear
In straight line lock on shin bone, shin bone can not be locked in multi-angle, therefore make whole group external fixer more built on the sand.
After sufferer selection imposes the operation of knee cartilage tissue repair, as shown in figure 17, it will usually with one bone fixation
Part 7 is fixed on femur F end, is fixed on the end shin bone T with a shin bone fixing piece 8, and with a pivot P connect the femur fixing piece 7 and
The shin bone fixing piece 8 is swung although pivot P can provide femur F with shin bone T-phase to centered on pivot P, according to people
Body structure, when bending knee, squatting down, not only there is rolling movement in the lower end of femur relative to shin bone, also there is micro sliding forward
Movement since the position of pivot P is fixed, and simple rotary motion can only be provided, and can not allow as shown in Figure 17 dotted line
Sliding motion is carried out between femur F and shin bone T, therefore, after patient installs external fixer, and can not normally be carried out big angle and be write music
Knee or movement of squatting down cause the postoperative great inconvenience in life of sufferer, and showing has improved necessity.
Inventor is disclosed and is applicable to high-order shin bone shown in the present invention and cuts in view of this, be plus give research and innovation
The knee joint external fixer that osseous surgery, knee cartilage tissue repair are performed the operation.
Summary of the invention
The present invention is intended to provide a kind of knee joint external fixer, it may include: it is solid under fixing component, a shin bone on a shin bone
Determine component and one bone fixation member, wherein on the shin bone under fixing component and the shin bone between fixing component, at least by one
Main support rod and a support rod connection or support make the present invention be adapted to different high tibial osteotomy operations and strut in shin bone
The various angles of side；And in femur fixing component and the shin bone between fixing component, it is equipped with a joint component, is applied with offsetting femur
It is added on the pressure of medial side of tibial plateau, which contains a protrusion can be in ground roll opposite on a stacker of the joint component
Dynamic, sliding, to adapt to knee joint during exercise, rolling that femur is carried out on tibial plateau, sliding motion make the present invention can
To be suitable for the outer fixation of high tibial osteotomy operation or the operation of knee cartilage tissue repair institute's device on the outside of patient legs
Device.
Disclosed knee joint external fixer, it may include: fixing component on a shin bone is equipped with multiple fixations
Nearly shin bone upper mounting plate end and the exposed needle (Pin) outside human leg above place are cut off in shin bone to be fixed on lock respectively in hole
On, fixing component is equipped with first connecting portion and the second connecting portion positioned at the first connecting portion side on the shin bone；Under one shin bone
Fixing component is equipped with multiple fixation holes, and to be fixed on lock, in shin bone to cut off tibial bone dry doubling below place exposed in people respectively
On needle (Pin) outside body leg, the top of fixing component under the shin bone is equipped with a third interconnecting piece and is located at the third interconnecting piece
4th interconnecting piece of side；One main support rod is anchored on the shin bone and fixes structure under the first connecting portion of fixing component and shin bone
Between the third interconnecting piece of part；And a support rod, it is connected between the second connecting portion and the 4th interconnecting piece.
It is above-mentioned to enable the main support rod be after universal adjustment angle for should at the first connecting portion and the third interconnecting piece
First connecting portion, third interconnecting piece are tightly fixed respectively；And the secondary support rod, upper/lower terminal are respectively formed a spherical surface
Or tip, accordingly stay on the 4th connection of fixing component under the second connecting portion of fixing component and the shin bone on the shin bone
Portion, can in corresponding upper, the 4th interconnecting piece universal its angle of adjustment.
Disclosed knee joint external fixer, wherein on the shin bone fixing component first connecting portion, contain one
The pedestal of fixing component and a fixing seat on the shin bone enable the fixing seat interlocking on the shin bone in fixing component, and with
The pedestal constitutes hole on one；The nearly upper end of the main support rod wears spherical bushing on one, and spherical bushing is equipped with an axis hole on this
And an open seam, enable on this spherical bushing when fixing seat is not locked at fixing component on the shin bone, can the pedestal with should
It is rotated freely in the upper hole that fixing seat is constituted, and the main support rod can be freely axial in the axis hole of spherical bushing on this
Displacement, when the fixing seat being enabled to be locked at fixing component on the shin bone, the pedestal and the fixing seat are tightly to fix spherical surface on this
Bushing and the main support rod.
Disclosed knee joint external fixer, wherein under the shin bone fixing component third interconnecting piece, contain one
The base portion of fixing component and a fixed portions, enable fixation portions interlocking fixing component under the shin bone under the shin bone
On, and hole is constituted with the base portion；The nearly lower end of the main support rod wears spherical bushing, which sets
There are an axis hole and an open seam, enables the lower peripheral surface bushing in fixing component under fixing seat not to be locked to the shin bone, it can be at this
It is rotated freely in the lower hole that base portion is constituted with the fixation portions, and the main support rod can be in the axis hole of the lower peripheral surface bushing
In freely axial displacement, when the fixing seat being enabled to be locked at fixing component under the shin bone, the base portion and the fixing seat are tightly
The lower peripheral surface bushing and the main support rod are fixed in ground.
Disclosed knee joint external fixer, wherein axis hole wall of spherical bushing and the lower peripheral surface bushing is set on this
There is lobe or forms rough surface.
Disclosed knee joint external fixer, wherein on the shin bone the respectively fixation hole of fixing component axial line
It is in being parallel to each other or the axial line of at least two fixation holes is in an angle.The axle center of the respectively fixation hole of fixing component under the shin bone
Line is in being parallel to each other or the axial line of at least two fixation holes is in an angle.
Disclosed knee joint external fixer, wherein the side of fixing component is further provided with all on the shin bone
The Knife tool fixation hole.
Disclosed knee joint external fixer, wherein it is either hollow to can be a solid body of rod for the main support rod
The body of rod；Or the main support rod is enabled mutually to be made of first body of rod and second body of rod, make first body of rod and second body of rod
Can be axially retractable, and radially compeled to fasten first body of rod and second body of rod by an at least fixed screw；It is above-mentioned to be somebody's turn to do
First body of rod outer rim is formed with external screw thread and screws togather a packing nut, to compel to fasten second body of rod, to stop first bar
Body and second body of rod are retreated along axial direction.
Disclosed knee joint external fixer, wherein fixing component under fixing component and the shin bone on the shin bone
Respectively the hole wall of the fixation hole is equipped with lobe or forms rough surface, and a packing screw is enabled radially to lock fixing component on the shin bone
After the fixation hole of fixing component under the shin bone, the needle can be forced to be closely against on the lobe or rough surface.
Disclosed knee joint external fixer, wherein the secondary support rod is by first body of rod and the mutual spiral shell of second body of rod
Composition is connect, keeps first body of rod and second body of rod axially retractable, is wherein radially screwed with one on first body of rod
Packing nut, to compel to fasten first body of rod and second body of rod, with block resistance first body of rod and second body of rod along axial
It retreats.
Disclosed knee joint external fixer, wherein the femur fixing component is to be equipped with multiple fixation holes, is used
It is hammered on femur and the exposed needle Pin outside human leg with being fixed on, to be moved with femur；In the femur fixing component and it is somebody's turn to do
Joint component set between fixing component on shin bone, wherein the first end of the protrusion be connected to the femur fixing component (or
It is connected to fixing component on the shin bone), and its second end is the contact surface to form a cambered surface or spherical surface, and the first of the stacker
End is to be connected to fixing component on the shin bone (or being connected to the femur fixing component), and its second end defines to form a undertaking
Face, so that the second end of the protrusion is resisted against the continuing surface, wherein the area of the continuing surface is enabled to be enough allow the protrusion second
End rolls and sliding；The above-mentioned continuing surface, being can be at a plane, cambered surface or spherical surface, the present invention and not from limit.
Disclosed knee joint external fixer, wherein the protrusion of the joint component or stacker are can to distinguish one
Forming is connected on the femur fixing component or shin bone in fixing component；Or with screw, bolt interlocking in the femur fixing component
Or on shin bone in fixing component.
Disclosed knee joint external fixer, have the advantages that following characteristics and:
With fixing component on main support rod and the fulcrum support of secondary support rod two shin bone, i.e., with more fulcrum support patient shins
The stress of bone upper mounting plate avoids operation ossa tibiale posterius upper mounting plate from generating overturning or displacement, promotes high tibial osteotomy success rate of operation.
Detailed description of the invention
Fig. 1: for the stereogram exploded view of first embodiment of the invention.
Fig. 2: for the stereogram exploded view of main support rod of the present invention.
Fig. 3: the planar structure schematic diagram for being Fig. 1 after combination.
Fig. 4: the application state perspective view being mounted on for embodiment illustrated in fig. 1 on patient.
Fig. 5: for the planar structure schematic diagram of Fig. 4.
Fig. 6: for the schematic diagram of the section structure in the direction 6-6 of Fig. 5.
Fig. 7: for the overlooking structure diagram of fixing component on shin bone shown in the present invention.
Fig. 8: for the overlooking structure diagram of fixing component under shin bone shown in the present invention.
Fig. 9: for the fixation hole configurations schematic diagram of fixing component on shin bone shown in the present invention.
Figure 10: for the fixation hole configurations schematic diagram of fixing component under shin bone shown in the present invention.
Figure 11: be applied to high tibial osteotomy operation and the operation of knee cartilage tissue repair for the present invention second is implemented
Example structural schematic diagram.
Figure 12: bend knee the schematic diagram of movement from Figure 11.
Figure 13: the 3rd embodiment structural schematic diagram of knee cartilage tissue repair operation is only applied to for the present invention.
Figure 14: for fourth embodiment of the invention structural schematic diagram.
Figure 15: for the external fixer schematic diagram of the operation of the first high tibial osteotomy disclosed in the prior art.
Figure 16: for the external fixer schematic diagram of the operation of second of high tibial osteotomy disclosed in the prior art.
Figure 17: for the structural representation for being used for the external fixer that knee cartilage tissue repair is performed the operation disclosed in the prior art
Figure.
Description of symbols:
1 sliding 2 wing bolt of locating rod, 3 sliding sleeve
4 fixing screws, 7 femur fixing piece, 8 shin bone fixing piece
Fixing piece M middleware under U upper fixing element D
The bulb P pivot U1, D1
11 fixation hole of fixing component, 110 axial line on 10 shin bones
Hole in 12 first connecting portion 120 of 111 lobes or rough surface
121 pedestal, 122 fixing seat, 13 second connecting portion
Fixing component under 14 15 packing screw of cutter tool fixation hole, 20 shin bone
21 fixation hole, 210 axial line, 211 lobe or rough surface
Lower 221 base portion of hole of 22 third interconnecting pieces 220
222 fixed 25 packing screws of the 4th interconnecting piece of portions 23
30,30 ' main support rod 30a, 30a ', first body of rod 30b, 30b body of rod of ' second
311 axis hole 311a lobe of spherical bushing or rough surface on 31
312 open seam, 32 lower peripheral surface bushing, 321 axis hole
33 fixed screw of 321a lobe or 322 open seam of rough surface
34 packing nut, 35 elastic material, 40 support rods
41 first body of rod of the upper end the 40a lower end 40b
42 second body of rod, 43 packing nut, 50 femur fixing component
51 fixation hole, 60 joint component, 61 protrusion
611 first end, 612 second end, 62 stacker
621 first end, 622 second end
A1, A2, A3 angle F femur S1, S2, S3 needle
T shin bone T1 shin bone upper mounting plate end T2 backbone
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and cannot be construed to
Limitation of the present invention.
As shown in figures 1-13, the invention discloses a kind of knee joint external fixers, to open ground device in human leg
It may include: fixing component 10 on a shin bone, fixing component 20 under a shin bone, wherein the fixing component 10 on the shin bone outside portion
And under the shin bone between fixing component 20, at least by a main support rod 30 and a connection of support rod 40 or support, make the present invention can
The various angles of tibial medial are strutted to adapt to high tibial osteotomy art HTO, High Tibial Osteotomy according to different sufferers
Degree；And the present invention can further include one bone fixation member 50, the fixing component in femur fixing component 50 and the shin bone
Between 10, it is connected with a joint component 60, to define the spacing between the femur F and diameter bone T, to be applied to shin bone T flat to offset femur F
Pressure on the inside of platform, the joint component 60 contain a protrusion 61 and a stacker 62, which can be in phase on the stacker 62
It rolls, slide over the ground, to adapt to human body knee joint during exercise, rolling and traversing fortune that femur is carried out on tibial plateau
It is dynamic, make after performing the operation present invention may apply to high tibial osteotomy operation or knee cartilage tissue repair, is installed on patient's leg
Outside portion.
As shown in figs. 1-7, knee joint external fixer, comprising: fixing component 10 on a shin bone is equipped with multiple fixations
Nearly shin bone upper mounting plate end T1 and the exposed needle S1 outside human leg above place are cut off in shin bone to be fixed on lock respectively in hole 11
On, fixing component 10 is equipped with first connecting portion 12 and the second connecting portion 13 positioned at 12 side of first connecting portion on the shin bone；
Fixing component 20 under one shin bone is equipped with multiple fixation holes 21, cuts off shin bone below place in shin bone to be fixed on lock respectively
On backbone T2 and the exposed needle S2 outside human leg, fixing component 20 is equipped with a third interconnecting piece 22 under the shin bone and be located at should
4th interconnecting piece 23 of 22 side of third interconnecting piece；One main support rod 30, be connected to fixing component 10 on the shin bone first connect
Under socket part 12 and shin bone between the third interconnecting piece 22 of fixing component 20；And a support rod 40, structure is fixed on the shin bone
Under the second connecting portion 13 of part 10 and the shin bone between the 4th interconnecting piece 23 of fixing component 20.
It is above-mentioned, enable the upper/lower terminal of the main support rod 30 can be ten thousand at the first connecting portion 12 and the third interconnecting piece 22
It is tightly fixed respectively after to adjustment angle for the first connecting portion 12 and the third interconnecting piece 22；The secondary support rod 40 is enabled,
Upper/lower terminal 40a, 40b respectively can in corresponding second connecting portion 13 and the 4th interconnecting piece 23 be in universal its angle of adjustment.
The above-mentioned secondary support rod 40, upper/lower terminal 40a, 40b are respectively formed a spherical surface or tip, accordingly to shore
In universal on the 4th interconnecting piece 23 of fixing component 20 under the second connecting portion 13 of fixing component 10 on the shin bone and the shin bone
Adjust its angle.
As shown in Fig. 1,2,5 or 6, wherein the first connecting portion 12 of fixing component 10 is set to the shin bone containing one on the shin bone
The pedestal 121 of upper fixing component 10 and an independent fixing seat 122, enable 122 interlocking of fixing seat in fixing component on the shin bone
On 10, and hole 120 on one is constituted with the pedestal 121；The nearly upper end of the main support rod 30 wears spherical bushing 31 on one, on this
Spherical bushing 31 is equipped with an axis hole 311 and an open seam 312, enables spherical bushing 31 on this that fixing seat 122 be not locked at this
It on shin bone when fixing component 10, can be rotated freely in the upper hole 120 that the pedestal 121 is constituted with the fixing seat 122, and should
Main support rod 30 can in the axis hole 311 of spherical bushing 31 on this freely axial displacement, enable the fixing seat 122 be locked at the shin
On bone when fixing component 10, the pedestal 121 and the fixing seat 122 are tightly to fix spherical bushing 31 and the main support rod on this
30。
As shown in Fig. 1,2,5 or 6, wherein the third interconnecting piece 22 of fixing component 20 is set to the shin bone containing one under the shin bone
The base portion 221 of lower fixing component 20 and an independent fixed portions 222 enable 222 interlocking of fixation portions solid under the shin bone
Determine on component 20, and constitutes hole 220 with the base portion 221；The nearly lower end of the main support rod 30 wears spherical bush
Set 32, the lower peripheral surface bushing 32 are equipped with an axis hole 321 and an open seam 322, enable the lower peripheral surface bushing 32 that will not fix portions
222 when being locked at fixing component 20 under the shin bone, the lower hole 220 that can be constituted in the base portion 221 and the fixation portions 222
In rotate freely, and the main support rod 30 can in the axis hole 321 of the lower peripheral surface bushing 32 freely axial displacement, enable this fix
When portions 222 are locked at fixing component 20 under the shin bone, the base portion 221 and the fixation portions 222 are tightly to fix under this
Spherical bushing 32 and the main support rod 30.
As shown in Fig. 2, wherein on this axis hole 311,321 hole walls of spherical bushing 31 and the lower peripheral surface bushing 32 be provided with it is prominent
Tooth forms rough surface 311a, 321a and avoids the main support rod 30 on this to engage or be closely against on the main support rod 30
The axis hole 311,321 of spherical bushing 31 and the lower peripheral surface bushing 32 generates axial displacement.
As shown in fig. 7, wherein the axial line 110 of the respectively fixation hole 11 of fixing component 10 is in being parallel to each other on the shin bone
Or enabling the axial line 110 of at least two fixation holes 11 is in an included angle A 1.The included angle A 1 is less than 140 degree, such as can be between 15-35
Degree, most preferably 26 degree.
As shown in figure 8, wherein the axial line 210 of the respectively fixation hole 21 of fixing component 20 is in being parallel to each other under the shin bone
Or enabling the axial line 210 of at least two fixation holes 21 is in an included angle A 2.The included angle A 2 is less than 140 degree, such as can be between 15-35
Degree, most preferably 22 degree.
As shown in Figure 1, wherein on the shin bone fixing component 10 side, be further provided with all the Knife tool fixation holes 14,
To fix one to cut off the accessory that the knife rest of shin bone is not shown out, without additionally setting up osteotomy cutter, to reduce operation
Cost.
As shown in Figure 2,6, wherein the main support rod 30 is mutually made of the first body of rod 30a and the second body of rod 30b, and by
An at least fixed screw 33 radially compels to fasten first body of rod 30a and second body of rod 30b.The first above-mentioned body of rod 30a
It can enable and be screwed together in consistent manner with an external thread section in a screw hole of second body of rod 30b, rotatably to adjust first body of rod
The length of 30a and second body of rod 30b, only the present invention is not from the combination side for limiting first body of rod 30a He second body of rod 30b
Formula.
As shown in Fig. 1,2,6, disclosed knee joint external fixer, wherein in the first bar of the main support rod 30
Body 30a outer rim is formed with external screw thread and screws togather a packing nut 34, to compel to fasten second body of rod 30b, to stop this
One body of rod 30a and second body of rod 30b are retreated along axial direction.
As shown in Figures 9 and 10, wherein on the shin bone under fixing component 10 and the shin bone fixing component 20 the respectively fixation hole
11,21 hole wall is equipped with lobe or forms rough surface 111,211, and a packing screw 15,25 is enabled radially to lock on the shin bone
Fixing component 20 and after compressing needle S1, S2 in fixation hole 11,21 under fixing component 10 and the shin bone, will force the needle
S1, S2 are closely against on the lobe or rough surface 111,211.Above-mentioned fixation hole 11,21 be along corresponding packing screw 15 or
25, which lock direction, forms a long hole, so that the needle S1, S2 is penetrated corresponding fixation hole 11,21, and compel for packing screw 15 or 25
When tight, the local outer rim of needle S1, S2 can be engaged relatively in the lobe or tight against in the rough surface 111 or 211, make the shin bone
Fixing component 20 can be tightly secured on respectively needle S1, S2 under upper fixing component 10 and the shin bone.
As shown in Fig. 1,3,5, wherein the secondary support rod 40 is mutually spirally connected and is formed by first body of rod 41 and second body of rod 42, with
The axial length of the secondary support rod 40 axially is adjusted by relative rotation；It wherein can radially further on first body of rod 41
It is screwed with a packing nut 43, to compel to fasten first body of rod 41 and second body of rod 42, with block resistance first body of rod, 41 He
Second body of rod 42 is retreated along axial direction.
Disclosed knee joint external fixer, wherein the main support rod 30 be can in a hollow lever, it is solid or
As shown in figure 14, which is to contain the first body of rod 30a ' and the second body of rod 30b ' in an elastic rod, enable this first
Body of rod 30a ' and second body of rod 30b ' are mutually axially socketed, and are equipped between first body of rod 30a ' and second body of rod 30b '
The elastic materials such as one elastomeric pad, elastomer block or spring 35 make first body of rod 30a ' and second body rod 30b ' be fixed on shin bone
Under upper fixing component 10 and shin bone when fixing component 20, fixing component 10 and shin on the shin bone can be provided by the elastic material 35
The micro vibration elastic of fixing component 20 under bone, to stimulate bone growth, to promote the recovery speed for being cut off shin bone.
As shown in Figure 11,12, disclosed knee joint external fixer, wherein the femur fixing component 50, wears
There are multiple fixation holes 51, femur F is hammered into and on the needle S3 that is exposed to outside leg to be fixed on, to move with femur F, in the stock
Joint component 60 set between fixing component 10 in bone fixation member 50 and the shin bone, wherein the first end 611 of the protrusion 61 be
Be connected to the femur fixing component 50 (or be connected to fixing component on the shin bone not shown go out), and its second end 612 be can
Form the contact surface of a cambered surface or spherical surface, and the first end 621 of the stacker 62 be connected to fixing component 10 on the shin bone (or
It is not shown out that person is connected to the femur fixing component), and its second end 622 is to form a continuing surface with defining, for the protrusion
61 second end 612 is resisted against in 62 second end 622 of stacker, wherein enabling the area foot of the second end 622 of the stacker 62
To allow the second end 612 of the protrusion 61 to roll and sliding, bend knee in human body, in the movement squatted down, the femur in addition to rotation still
It slides forward, shown in dotted line as shown in figure 12；The second end 622 of the above-mentioned stacker 62, being can be at a plane, cambered surface or ball
Face, the present invention simultaneously not limit its shape certainly.
Disclosed knee joint external fixer, the wherein protrusion 61 of the joint component 60 and stacker 62, being can
It is integrally formed and is connected on the femur fixing component 50 or shin bone in fixing component 10, or with screw or bolt interlocking at this
In femur fixing component 50 or shin bone in fixing component 10, the present invention simultaneously not limits certainly.
As shown in figure 13, when sufferer only carries out the operation of knee cartilage tissue repair, knee joint applied by the present invention
External fixer, being includes: fixing component 10 on a shin bone, is equipped with multiple fixation holes 11, respectively to be fixed on lock in shin
On bone T and the exposed needle S1 outside human leg；One bone fixation member 50 is equipped with multiple fixation holes 51, to be fixed on
It hammers on femur F and the exposed needle S3 outside human leg, to be moved with femur F；And it in the femur fixing component 50 and is somebody's turn to do
Joint component 60 set between fixing component 10 on shin bone, the joint component 60 contain a protrusion 61 and a stacker 62, this is prominent
Portion 61 can relatively roll on the stacker 62, slide；Wherein the first end 611 of the protrusion 61 is to be connected to the femur to fix
Component 50 (or be connected to fixing component on the shin bone not shown go out), and its second end 612 is can to form a cambered surface or spherical surface
Contact surface, and the first end 621 of the stacker 62 is to be connected to fixing component 10 on the shin bone (or to be connected to the femur solid
Determine component diagram to be not shown), and its second end 622 is to form a continuing surface with defining, for the protrusion 61 second end 612 against
In the second end 622 of the stacker 62, wherein 622 area of the second end of stacker 62 is enabled to be enough allow the protrusion 61
Two ends 612 roll and sliding.
Disclosed knee joint external fixer, have the advantages that following characteristics and；
1. with fixing component 10 on main support rod 30 and the fulcrum support of secondary support rod 40 two shin bone, i.e., with more fulcrum branch
The stress for supportting patient's shin bone upper mounting plate T1 avoids operation ossa tibiale posterius upper mounting plate T1 from generating overturning or displacement, promotes high-order shin bone and cuts
Osseous surgery success rate.
2. the main support rod 30 and secondary support rod 40 can be under fixing components 10 on the shin bone and the shin bone when installation
It can be in universal its angle of adjustment between fixing component 20, and axially retractable can adjust, be cut off with adapting to different patients in the shin bone
Place is because strutting different angle A, as shown in figure 4, the angular relationship of required fixation.
3. the fixation hole 11,21 on shin bone under fixing component 10 and shin bone in fixing component 20, distribution corresponds to the shin bone
Periphery, make needle S1 or S2 on shin bone after osteotomy, disclosed with different angle locking
External fixer more can firmly position the distracted angle of patient's osteotomy ossa tibiale posterius institute and position.
4. the main support rod 30 can use hollow lever, the weight of entire external fixer is substantially reduced, is suffered from mitigating
Person's loading reduces patient's sense of discomfort.
5. when sufferer simultaneously carry out high tibial osteotomy operation with knee cartilage tissue repair perform the operation when, can further by
By the joint component 60 between fixing component 10 on femur fixing component 50 and shin bone, stablizes to strut and hold level with both hands on the femur F and shin bone T
Spacing between platform, and the joint component 60 is also adapted to femur F and shin bone T generated rolling and sliding motion during exercise
Path, the movement for alloing sufferer normally to be squatted, standing.
6. after sufferer shin bone restores, can individually fixing component 20, main support rod 30 and secondary support rod 40 under removal shin bone,
After knee cartilage regeneration recovery, then fixing component 10 on removal femur fixing component 50 and shin bone, make the present invention can
To adapt to different patients selected therapeutic method of surgery and reset condition when treating knee joint illness.
Disclosed structure or shape can be modified application under the spirit or scope for not disobeying the present invention, this
Be limited to above embodiment is not described in detail construction of the invention, feature based on the embodiments shown in the drawings certainly for invention
And function and effect, the foregoing is merely presently preferred embodiments of the present invention, but the present invention does not limit the scope of implementation as shown in the drawings, all
It is according to change made by conception of the invention or equivalent example modified to equivalent change, still without departing from specification and figure
It, should all be within the scope of the present invention when showing covered spirit.
Claims (16)
1. a kind of knee joint external fixer characterized by comprising
Fixing component on one shin bone is equipped with multiple fixation holes, cuts off nearly shin bone above place in shin bone to be fixed on lock respectively
On upper mounting plate end and the exposed needle outside human leg, fixing component is equipped with first connecting portion and is located at first company on the shin bone
The second connecting portion of socket part side；
Fixing component under one shin bone is equipped with multiple fixation holes, cuts off tibial bone below place in shin bone to be fixed on lock respectively
On the exposed needle outside human leg of dry doubling, fixing component is equipped with a third interconnecting piece and is located at the third interconnecting piece under the shin bone
4th interconnecting piece of side；
One main support rod is connected to the third interconnecting piece of fixing component under the first connecting portion of fixing component and shin bone on the shin bone
Between；And
Support rod, the 4th interconnecting piece of fixing component under the second connecting portion of fixing component on the shin bone and the shin bone
Between.
2. knee joint external fixer as described in claim 1, which is characterized in that the upper/lower terminal of the main support rod is enabled to exist
It is tight for the first connecting portion and third interconnecting piece difference after universal adjustment angle at the first connecting portion and the third interconnecting piece
Tightly fix.
3. knee joint external fixer as described in claim 1, which is characterized in that enable the secondary support rod, upper/lower terminal point
Not in being in universal its angle of adjustment in corresponding second connection and the 4th interconnecting piece.
4. knee joint external fixer as described in claim 1, which is characterized in that the first connection of fixing component on the shin bone
The pedestal and an independent fixing seat for being set to fixing component on the shin bone is contained in portion, enables the fixing seat interlocking in solid on the shin bone
Determine on component, and constitutes hole on one with the pedestal；The nearly upper end of the main support rod wears spherical bushing on one, spherical bush on this
It is arranged with an axis hole and an open seam, enables on this spherical bushing when fixing seat is not locked at fixing component on the shin bone,
Rotated freely in the upper hole that the pedestal is constituted with the fixing seat, and the main support rod in the axis hole of spherical bushing on this from
By ground axial displacement, when the fixing seat being enabled to be locked at fixing component on the shin bone, which is tightly fixed with the fixing seat
Spherical bushing and the main support rod on this.
5. knee joint external fixer as claimed in claim 4, which is characterized in that wherein under the shin bone fixing component third
Interconnecting piece contain one be set to the shin bone under fixing component base portion and an independent fixed portions, enable the fixation portions interlocking in
Under the shin bone in fixing component, and hole is constituted with the base portion；The nearly lower end of the main support rod wears spherical bush
Set, the lower peripheral surface bushing are equipped with an axis hole and an open seam, enable the lower peripheral surface bushing that fixed portions be not locked at the shin bone
It when lower fixing component, is rotated freely in the lower hole that the base portion is constituted with the fixation portions, and the main support rod is in this
Freely axial displacement in the axis hole of lower peripheral surface bushing, when the fixation portions being enabled to be locked at fixing component under the shin bone, the pedestal
Portion and the fixation portions are tightly to fix the lower peripheral surface bushing and the main support rod.
6. knee joint external fixer as claimed in claim 5, which is characterized in that spherical bushing and the lower peripheral surface bushing on this
Axis hole wall be equipped with lobe or formed rough surface.
7. knee joint external fixer as described in claim 1, which is characterized in that on the shin bone fixing component respectively this fix
It is in an angle that the axial line in hole, which is in being parallel to each other or enabling the axial line of at least two fixation holes,；Wherein fixing component under the shin bone
It is in an angle that respectively the axial line of the fixation hole, which is in being parallel to each other or enabling the axial line of at least two fixation holes,.
8. knee joint external fixer as described in claim 1, which is characterized in that the main support rod is by first body of rod and
Bipole body mutually forms, and is radially compeled to fasten first body of rod and second body of rod by an at least fixed screw.
9. knee joint external fixer as claimed in claim 8, which is characterized in that first body of rod outer rim is formed with external screw thread
And a packing nut is screwed togather, second body of rod is fastened to compel.
10. knee joint external fixer as described in claim 1, which is characterized in that fix structure under shin bone and the shin bone on this
The hole wall of the respectively fixation hole of part is equipped with lobe or forms rough surface.
11. knee joint external fixer as described in claim 1, which is characterized in that the secondary support rod is by first body of rod and second
The body of rod is mutually spirally connected composition, wherein a packing nut is radially screwed on first body of rod, to compel to fasten first body of rod
With second body of rod, block resistance first body of rod and second body of rod are retreated along axial direction.
12. knee joint external fixer as described in claim 1, which is characterized in that one bone fixation member is further included,
The femur fixing component, is equipped with multiple fixation holes, hammers on femur and the exposed needle outside human leg to be fixed on；With
And a joint component between fixing component in the femur fixing component and the shin bone, the joint component contain a protrusion and one
Stacker, the protrusion can be in relatively rolling or slide on the stacker.
13. knee joint external fixer as described in claim 1, which is characterized in that the main support rod be an elastic rod or in
Empty bar.
14. knee joint external fixer as claimed in claim 13, which is characterized in that the main support rod contains first body of rod
With second body of rod, first body of rod and the bipole body is enabled mutually axially to be socketed, and is set between first body of rod and second body of rod
There are the elastic materials such as an elastomeric pad, elastomer block or spring.
15. a kind of knee joint external fixer characterized by comprising
Fixing component on one shin bone is equipped with multiple fixation holes, respectively to be fixed on lock in shin bone and exposed in human leg
On outer needle；
One bone fixation member is equipped with multiple fixation holes, hammers into femur and the exposed needle outside human leg to be fixed on
On；And
Set joint component, the joint component contain a protrusion between fixing component in the femur fixing component and the shin bone
And a stacker, the protrusion is in relatively rolling or slide on the stacker.
16. the knee joint external fixer as described in claim 12 or 15, which is characterized in that the first end of the protrusion is connection
In the femur fixing component or it is connected to fixing component on the shin bone, and its second end forms the contact of a cambered surface or spherical surface
Face, and the first end of the stacker is connected to fixing component on the shin bone or is connected to the femur fixing component, and its second
End is to form a continuing surface with defining, so that the second end of the protrusion is resisted against in the second end of the stacker, wherein this is enabled to hold
The area of joint chair second end is enough that the second end of the protrusion is allowed to roll and slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208913.2A CN109833084A (en) | 2017-11-27 | 2017-11-27 | Knee joint external fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208913.2A CN109833084A (en) | 2017-11-27 | 2017-11-27 | Knee joint external fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109833084A true CN109833084A (en) | 2019-06-04 |
Family
ID=66879209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711208913.2A Pending CN109833084A (en) | 2017-11-27 | 2017-11-27 | Knee joint external fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109833084A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114129247A (en) * | 2020-09-04 | 2022-03-04 | 宝楠生技股份有限公司 | Stable fixing bone plate for high-position tibia osteotomy |
| CN114983635A (en) * | 2022-08-02 | 2022-09-02 | 北京爱康宜诚医疗器材有限公司 | Joint spacer structure |
| CN117414236A (en) * | 2023-12-15 | 2024-01-19 | 乐普（北京）医疗器械股份有限公司 | Implantable knee joint pressure reducing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637382A (en) * | 1982-04-27 | 1987-01-20 | Brigham & Women's Hospital | Motion-guiding load-bearing external linkage for the knee |
| CN2330319Y (en) * | 1998-08-13 | 1999-07-28 | 李文锋 | Regulating device for sliding external fixator |
| CN2354514Y (en) * | 1997-02-17 | 1999-12-22 | 胡桓宇 | Multifunctional external fixator for single ulna and radius |
| CN101262826A (en) * | 2005-09-15 | 2008-09-10 | Mikai股份公司 | Apparatus for treating malformative and traumatic conditions affecting the knee area |
| JP4417585B2 (en) * | 2001-05-30 | 2010-02-17 | メイラ株式会社 | External fixator |
| CN106794034A (en) * | 2014-08-11 | 2017-05-31 | 捷迈有限公司 | Outer fixation |
| CN209091581U (en) * | 2017-11-27 | 2019-07-12 | 宝楠生技股份有限公司 | Knee joint external fixer |
-
2017
- 2017-11-27 CN CN201711208913.2A patent/CN109833084A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637382A (en) * | 1982-04-27 | 1987-01-20 | Brigham & Women's Hospital | Motion-guiding load-bearing external linkage for the knee |
| CN2354514Y (en) * | 1997-02-17 | 1999-12-22 | 胡桓宇 | Multifunctional external fixator for single ulna and radius |
| CN2330319Y (en) * | 1998-08-13 | 1999-07-28 | 李文锋 | Regulating device for sliding external fixator |
| JP4417585B2 (en) * | 2001-05-30 | 2010-02-17 | メイラ株式会社 | External fixator |
| CN101262826A (en) * | 2005-09-15 | 2008-09-10 | Mikai股份公司 | Apparatus for treating malformative and traumatic conditions affecting the knee area |
| CN106794034A (en) * | 2014-08-11 | 2017-05-31 | 捷迈有限公司 | Outer fixation |
| CN209091581U (en) * | 2017-11-27 | 2019-07-12 | 宝楠生技股份有限公司 | Knee joint external fixer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114129247A (en) * | 2020-09-04 | 2022-03-04 | 宝楠生技股份有限公司 | Stable fixing bone plate for high-position tibia osteotomy |
| CN114983635A (en) * | 2022-08-02 | 2022-09-02 | 北京爱康宜诚医疗器材有限公司 | Joint spacer structure |
| CN117414236A (en) * | 2023-12-15 | 2024-01-19 | 乐普（北京）医疗器械股份有限公司 | Implantable knee joint pressure reducing device |
| CN117414236B (en) * | 2023-12-15 | 2024-05-07 | 乐普（北京）医疗器械股份有限公司 | Implantable knee joint pressure reducing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5314499A (en) | Artificial limb including a shin, ankle and foot | |
| JP4378253B2 (en) | Artificial knee with detachable stop pin that limits forward sliding movement of the bearing | |
| US10064732B2 (en) | Artificial knee joint | |
| US20080275509A1 (en) | Mounts for implantable extra-articular systems | |
| JP4226333B2 (en) | Device for parts that pivotably connect orthopedic devices | |
| US6482236B2 (en) | Prosthetic ankle joint mechanism | |
| RU2113192C1 (en) | Device for obtaining of reciprocal rotary joint of orthopedic apparatus parts | |
| JP4591968B2 (en) | Hip joint loader | |
| US9439786B2 (en) | Prosthetic ankle module | |
| US4219893A (en) | Prosthetic knee joint | |
| US4911724A (en) | Energy responsive prosthetic leg | |
| US10251761B2 (en) | Prosthetic knee joint | |
| CN109833084A (en) | Knee joint external fixer | |
| JPH0315459A (en) | Module type knee prosthesis means | |
| JPH05146A (en) | Rotatably movable joined body | |
| JPS6247539B2 (en) | ||
| JP2009527281A (en) | Spine implant with oval occlusal interface | |
| JPS63500915A (en) | Artificial penis having actuation means interacting with tension member and segmental cylinder | |
| CN209091581U (en) | Knee joint external fixer | |
| CN109009575A (en) | Artificial knee joint prosthesis | |
| CN110831549A (en) | Prosthesis and prosthetic foot adapter | |
| US6702860B1 (en) | Dynamic prosthetic foot with multiple load points on upper section and sole | |
| RU2110243C1 (en) | Exoskeleton | |
| JP2008511379A (en) | Joint prostheses and bone fixation methods | |
| TWM560290U (en) | Knee external fixation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190604 |
|
| WD01 | Invention patent application deemed withdrawn after publication |