CN106137308B - A kind of joint replacement adjuster - Google Patents
A kind of joint replacement adjuster Download PDFInfo
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- CN106137308B CN106137308B CN201610481448.9A CN201610481448A CN106137308B CN 106137308 B CN106137308 B CN 106137308B CN 201610481448 A CN201610481448 A CN 201610481448A CN 106137308 B CN106137308 B CN 106137308B
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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
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/15—Guides therefor
- A61B17/154—Guides therefor for preparing bone for knee prosthesis
- A61B17/155—Cutting femur
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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
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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
- A61B2017/564—Methods for bone or joint treatment
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- Heart & Thoracic Surgery (AREA)
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Abstract
The present invention provides a kind of joint replacement adjuster, and wherein joint replacement adjuster includes body, and body is provided with least one pair of datum hole and some to adjusting hole；Differential seat angle≤2 ° between differential seat angle≤2 ° between the circle center line connecting of paired datum hole and the circle center line connecting of the immediate paired adjusting hole of its inclined degree, the circle center line connecting of the immediate any two pairs of adjusting holes of inclined degree；Also include surveying obliquity structure.The joint replacement of the present invention compared with human eye of the prior art is estimated, is more easily held, and can control error within 2 ° with adjuster；Based on adjusting two finished fixed nails, it can effectively control former and later two tangent planes substantially parallel with logical condyle line, it is to avoid condyle outward turning osteotomy is improper before and after there is femur, realize accurate osteotomy, improve clinical efficacy.
Description
Technical field
The present invention relates to total knee replacement technical field of medical instruments, and in particular to a kind of total knee outward turning joint replacement
Use adjuster.
Background technology
With making constant progress for medical technology, artificial knee replacement surgery has turned into the normal for the treatment of pathologic changes of knee joint
Advise one for the treatment of method.Artificial knee joint replacement is the joint that disease damage is substituted using artificial joint prosthesis, to recover and improve pass
Function is saved, is improved the quality of living.Due to artificial knee joint replacement short treating period, pain of alleviation effect substantially, is more and more cured
Trouble is received., it is necessary to carry out osteotomy to distal femur in total knee replacement, artificial joint prosthesis is installed to obtain
Femur model, as shown in figure 1, carrying out osteotomy to row distal femur first, forms a vertical tangent plane a, then forms two with being somebody's turn to do
Side grain b vertical vertical tangent plane a, re-forms scarf c between vertical tangent plane a and side grain b, with the inside with artificial joint prosthesis
Installing space is adapted, convenient to install.
In order to obtain the balance that knee joint stretches gap of going down on one's knees, in addition it is also necessary to which two side grains and joint to be replaced is logical above and below making
Condyle line is parallel, i.e., parallel with the line d in Fig. 2.It is usually first in the vertical tangent plane a subscripts in joint to be replaced to reach this purpose
Line d is made, then again on the basis of line d, above-mentioned two side grain b is cut out.In order to calibrate line d on vertical tangent plane a
Parallel lines, in the prior art frequently with the calibration tool shown in Fig. 3, calibration tool has main body 01 and fixed with main body 01
Two through holes 03 are additionally provided with collet 02 together, main body 01；During demarcation, first the extruding of collet 02 is adjacent to and is fixed on diagram
At femoral-posterior condyles, two fixed nails 04 are then hammered at through hole 03, after calibration tool is removed, fixed nail 04 stays in be replaced
On joint, the line of two fixed nails 04 is line d parallel lines.
This calibration tool of the prior art, be according to the special angle generally having between collet 02 and logical condyle line come
Realize, but the joint of different patients is not exclusively, the special angle between collet 02 and logical condyle line is also different.When adopting
When going to demarcate the joint of different patients with above-mentioned calibration tool with same default special angle, hammered into inside two through holes 03
Two fixed nails 04 line, often it is real lead between condyle line there is angular error, generally within ± 6 °.When in reality
When there is this error in the operation of border, due to not adjusting instrument accurately, usually operative doctor is directly estimated with eye, will be bright
Aobvious inaccurate fixed nail 04 is removed, and is then ordered one or two on joint to be replaced again and is fixed nail 04 to re-scale line
D parallel lines, but the line and logical condyle line of estimating the fixed nail 04 generally not accurate enough, human eye is hammered into again after estimating of human eye
Between still suffer from error, go to cut by standard of this line above and below two tangent planes when, still occur above and below two tangent planes deposited with logical condyle line
In the defect of deviation, cause postoperative comfort level poor.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome when the line for using calibration tool of the prior art to demarcate
When d parallel lines and logical condyle line are not parallel, it is adjusted without special adjustment instrument, it is necessary to human eye is estimated, causes demarcation
Line d parallel lines and logical condyle line can not accurate consistent technological deficiency, so as to provide a kind of to enter above-mentioned line d parallel lines
The accurate adjustment of row, so that the line d consistent joint replacement adjusters parallel with logical condyle line of demarcation.
The present invention also provides a kind of application method of joint replacement adjuster.
Therefore, the present invention provides a kind of joint replacement adjuster, including body, the body is provided with least one pair of base
Quasi- hole and some to adjusting hole, the spacing between the paired datum hole, which is set, to be made it suitable for intending adjustment while being set in
Fixation is nailed on；
The circle center line connecting of the paired datum hole and the circle with the immediate paired adjusting hole of its inclined degree
Angle between differential seat angle≤2 ° between heart line, the circle center line connecting of the immediate any two pairs of adjusting holes of inclined degree
Difference≤2 °；
Also include survey obliquity structure on the body is installed, for measuring logical condyle line and the paired datum hole
Differential seat angle between circle center line connecting；
The body has the first side and second side parallel with the circle center line connecting of the datum hole, and connection institute
State the first arc-shaped side and the second arc-shaped side of first side and the second side.
As a kind of preferred scheme, the survey obliquity structure includes：
First measurement bar, one end is installed in rotation on the body, and the other end is pointer；
Angle number, is set on the body, and using the rotation center of circle of first measurement bar as angle summit；
Second measurement bar, be arranged in parallel with first measurement bar, and can be surveyed by adjusting structural adjustment with described first
The distance between gauge rod, with two axially distributed relative pointers.
As a kind of preferred scheme, the adjustment structure includes at least two guide rods be arrangeding in parallel, is led described in two
It is fixed on to one end of bar in first measurement bar, and it is vertical with first measurement bar；Second measurement bar is provided with
Pilot hole of two difference only for two guide rod insertions.
It is as a kind of preferred scheme, the circle center line connecting of the datum hole in pairs and immediate in pairs with its inclined degree
The adjusting hole circle center line connecting between differential seat angle≤1 °, the circle of the immediate any two pairs of adjusting holes of inclined degree
Differential seat angle≤1 ° between heart line.
As a kind of preferred scheme, the paired circle center line connecting of the adjusting hole connects with the center of circle of the paired datum hole
Differential seat angle≤6 ° between line.
As a kind of preferred scheme, the adjusting hole is 6 pairs, respectively first pair adjusting hole, second pair of adjusting hole, the 3rd
To adjusting hole, the 4th pair of adjusting hole, the 5th pair of adjusting hole and the 6th pair of adjusting hole, the circle center line connecting of 6 pairs of adjusting holes and institute
State the angle difference between the circle center line connecting of datum hole and be followed successively by 1 °, 2 °, 3 °, 4 °, 5 ° and 6 °.
As a kind of preferred scheme, the spacing between the paired adjusting hole, which is set, to be made it suitable for while being set in plan
The fixation of adjustment is nailed on.
As a kind of preferred scheme, in addition to some to translation hole, the circle center line connecting in the paired translation hole with pairs
The datum hole circle center line connecting it is parallel.
The present invention also provides a kind of application method of joint replacement adjuster, comprises the following steps：
A pair of datum holes on body are set in a pair of fixations for intending adjusting to nail on；
The angle between the logical condyle line and the circle center line connecting of the pair of datum hole is measured using the survey obliquity structure
Difference, and find out the circle center line connecting of circle center line connecting and the datum hole there are a pair of adjusting holes identical or closest to differential seat angle；
New fixed nail is reset in the position for the pair of adjusting hole found out.
As a kind of preferred scheme, when being unsuitable for setting new fixed nail in the position for the pair of adjusting hole found out,
Also comprise the following steps：
Through a pair of translation holes, adjustment nail is set；
The body is removed from the fixed nail and the adjustment nail, the fixed nail removed, by the body
Translation, makes translation borehole jack described in the another pair of the body be located in the adjustment nail.
Joint replacement adjuster and its application method that the present invention is provided, for calibration tool institute in the prior art
When the line and not parallel logical condyle line of the two fixed nails marked, the position of two fixed nails is adjusted, makes its line and logical condyle line
It is exactly parallel, with advantages below：
1. the joint replacement adjuster of the present invention, body provided with least one pair of datum hole and some to adjusting hole, into
To datum hole be suitable to be set in the fixation for intending adjustment and nail on, the circle center line connecting of paired datum hole with its inclined degree with most connecing
Differential seat angle≤2 ° between the circle center line connecting of near adjusting hole, the circle center line connecting of the immediate any two pairs of adjusting holes of inclined degree
Between differential seat angle≤2 °, and incline provided with being used to measuring the survey of differential seat angle between logical condyle line and the circle center line connecting of paired datum hole
Corner structure；Nail, and the lines of two fixed nails are fixed when nailing on two on the vertical tangent plane in joint to be replaced using calibration tool
With logical condyle line it is not parallel when, people can use survey obliquity structure measure logical condyle line and paired datum hole circle center line connecting (
The lines of i.e. two fixed nails) between differential seat angle, then find the circle center line connecting of circle center line connecting and datum hole have it is identical or
Person closest to differential seat angle a pair of adjusting holes, find out this hammer into two fixed nails again to adjusting hole inside, by original two
Individual fixed nail, which is removed, can obtain the line two fixed nails parallel with logical condyle line.The joint replacement adjuster of the present invention is with showing
There is the human eye in technology to estimate to compare, more easily hold, and error can be controlled within 2 °.Further, be arranged to
The circle center line connecting of datum hole and differential seat angle≤1 ° between the circle center line connecting of the immediate paired adjusting hole of its inclined degree,
Differential seat angle≤1 ° between the circle center line connecting of the immediate any two pairs of adjusting holes of inclined degree, can will control error 1 ° with
It is interior, so as to substantially increase demarcation accuracy, based on adjusting two finished fixed nails, can effectively control above and below two
Individual tangent plane is substantially parallel with logical condyle line, it is to avoid eccentric wear occur, improves postoperative experience.
2. the joint replacement adjuster of the present invention, surveying obliquity structure includes the first measurement bar, the second measurement bar, adjustment knot
Structure and the angle number being arranged in main body；When two fixations hammered into using calibration tool on the vertical tangent plane in joint to be replaced
When the line of nail and not parallel logical condyle line, the rotational angle of the first measurement bar is adjusted, and adjust the second measurement bar and the first measurement
The spacing distance of bar, makes two relative pointers of the second measurement bar be alignd with the two ends of logical condyle line, then reads the first measurement bar
The angle value pointed out on angle number, then finds with the circle center line connectings of a pair of datum holes into identical or closest to angle number one
To adjusting hole, at this to hammering into fixed nail in adjusting hole, what fixing after a pair of the fixation nails as adjustment hammered into was followed closely sets
Seated position.
3. the joint replacement adjuster of the present invention, the center of circle of the circle center line connecting of paired adjusting hole and paired datum hole
Differential seat angle≤6 ° between line, can adjust situation of the angular deviation within ± 6 ° between fixed nail line and logical condyle line,
It is fully able to meet needs in practice.
Make it suitable for covering simultaneously 4. the spacing between the joint replacement adjuster of the present invention, paired adjusting hole is set
It is located at the fixation for intending adjusting to nail on, so in some special occasions, a pair of adjusting holes can be used as datum hole；Also, into
To adjusting hole between spacing can be adapted to be set in and intend a pair of fixations of adjustment and nail on, hammered into when inside this pair of adjusting hole
During new fixed nail, the spacing between spacing between two fixed nails and two original fixed nails are identical, be easy to subsequently
Other operating theater instruments be engaged.
5. the joint replacement adjuster of the present invention, in addition to translation hole, after the adjusting hole of target is searched out, it is possible to
There is the situation that an adjusting hole is located at outside vertical tangent plane, at this moment only need to adjust hole site at a pair hammers into two adjustment nails, will
Body is from fixing nail and being removed in adjustment nail, by original fixed nail removal, then by the another pair adjusting hole of body with adjusting
Nail alignment, makes target adjustment hole entirely fall within vertical tangent plane, and two fixed nails are hammered into the target adjustment hole site.
6. the present invention also provides a kind of application method of joint replacement adjuster, joint replacement adjuster of the present invention
Application method, can measure logical condyle line and base when the line of two fixed nails is not parallel with logical condyle line by surveying obliquity structure
Differential seat angle between the circle center line connecting in quasi- hole, so find out the circle center line connecting of circle center line connecting and datum hole have it is identical or closest
A pair of adjusting holes of differential seat angle, the fixed nail new by being hammered into adjusting hole, the set location of the fixed nail of correction, so that adjusting
The line of fixed nail after whole reaches preferably parallel with logical condyle line.
7. the application method of joint replacement adjuster of the present invention, after target adjustment hole is searched out, it may also occur that one
Adjusting hole is located at outside vertical tangent plane, so that the problem of can not setting fixed follow closely；At this moment it can be followed closely mounting and adjusting in translation hole, then
Body is removed from fixed nail and adjustment nail, original fixed nail is removed, whole body is translated, makes another pair of body
Translation borehole jack is located in adjustment nail, so that target adjustment hole is adjusted to being respectively positioned on inside vertical tangent plane, in order to install.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in prior art or the specific embodiment of the invention, below to existing skill
Accompanying drawing used in art or embodiment description is briefly described, it should be apparent that, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the condyle osteotomy formation side grain before and after the up distal femur osteotomy formation vertical tangent plane in joint to be replaced, femur
And the schematic diagram of scarf.
Fig. 2 is the position view of logical condyle line.
Fig. 3 is the structural representation of calibration tool in the prior art.
Fig. 4 is the top view of joint replacement adjuster in the embodiment of the present invention.
Fig. 5 is the top view that the joint replacement adjuster surveyed after obliquity structure is removed in Fig. 4.
Fig. 6 is the overall structure diagram of the body of improvement project in embodiment 3.
Fig. 7 is the structural representation of the survey obliquity structure of improvement project in embodiment 3.
Fig. 8 is the structural representation after Fig. 7 is installed on Fig. 6.
Reference：01- main bodys, 02- collets, 03- through holes, 04- fixes nail, 10- bodies, 101- first sides, 102-
Second side, the arc-shaped sides of 103- first, the arc-shaped sides of 104- second, 1- datum holes, 11- angle numbers, the measurement bars of 21- first, 22-
Two measurement bars, 23- guide rods, 24- pilot holes, 2- first is to adjusting hole, and 3- second is to adjusting hole, 4- the 3rd pair of adjusting hole, 5-
4th pair of adjusting hole, the 5th pair of adjusting hole of 6-, the 6th pair of adjusting hole of 7-, 8- translations hole.
Embodiment
Technical scheme is described with reference to Figure of description, it is clear that following embodiments is not this
Invent whole embodiments.Based on embodiment described in the invention, those of ordinary skill in the art are not making other wounds
The every other embodiment obtained under the premise of the property made work, belongs to protection scope of the present invention.
It should be noted that in the description of the invention, term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implying relative importance.In addition, technology involved in invention described below different embodiments
As long as feature does not constitute conflict and can just be combined with each other each other.
Embodiment 1
The present embodiment provides a kind of joint replacement adjuster, as illustrated in figures 4-5, including body 10, on the body 10
Provided with a pair of datum holes 1 and some to adjusting hole 2,3,4,5,6,7, the spacing between the paired datum hole 1, which is set, to be caused
Its fixation for being suitable to be set in plan adjustment simultaneously is nailed on；The circle center line connecting of the paired datum hole 1 with its inclined degree most
Differential seat angle≤2 ° between the circle center line connecting of the close paired adjusting hole 2,3,4,5,6,7, inclined degree is immediate
Differential seat angle≤2 ° between the circle center line connecting of any two pairs of adjusting holes 2,3,4,5,6,7；Also include being arranged on the body
Survey obliquity structure on 10, for measuring the differential seat angle between logical condyle line and the circle center line connecting of the paired datum hole 1；It is described
Body 10 has the first side 101 and second side 102 parallel with the circle center line connecting of the datum hole 1, and described in connection
First side 101 and the first arc-shaped side 103 and the second arc-shaped side 104 of the second side 102.
The joint replacement adjuster of the present embodiment, when nailing on two on the vertical tangent plane in joint to be replaced using calibration tool
Individual fixed nail, and when two the fixed lines followed closely and not parallel logical condyle line, people can use survey obliquity structure to measure logical condyle line
The differential seat angle between the circle center line connecting of paired datum hole (namely lines of two fixed nails), then find circle center line connecting with
The circle center line connecting of datum hole has a pair of adjusting holes identical or closest to differential seat angle, find out this to adjusting hole inside again
Two fixed nails are hammered into, original two fixed nails, which are removed, can obtain the line two fixed nails parallel with logical condyle line.This
The joint replacement of embodiment compared with human eye of the prior art is estimated, is more easily held with adjuster, and can control error
Within 2 °.Further, be arranged to datum hole circle center line connecting with the immediate paired adjustment of its inclined degree
Angle between differential seat angle≤1 ° between the circle center line connecting in hole, the circle center line connecting of the immediate any two pairs of adjusting holes of inclined degree
Degree is poor≤1 °, can will control error within 1 °, so as to substantially increase demarcation accuracy, to adjust two finished fixed nails
Based on, can effectively control above and below two tangent planes it is substantially parallel with logical condyle line, it is to avoid there is eccentric wear, improve postoperative experience.
The survey obliquity structure includes：First measurement bar 21, one end is installed in rotation on the body 10, the other end
For pointer；Angle number 11, is arranged on the body 10, and using the rotation center of circle of first measurement bar 21 as angle summit；
Second measurement bar 22, be arranged in parallel with first measurement bar 21, and can be by adjusting structural adjustment and first measurement bar
The distance between 21, with two axially distributed relative pointers.Cut when using calibration tool in the perpendicular of joint to be replaced
When the line and not parallel logical condyle line of the two fixed nails hammered on face, the rotational angle of the first measurement bar 21 is adjusted, and adjust
The spacing distance of second measurement bar 22 and the first measurement bar 21, makes two relative pointers and the two of logical condyle line of the second measurement bar 22
End alignment, then reads the angle value that the first measurement bar 21 is pointed out on angle number 11, then finds the circle with a pair of datum holes 1
The heart is wired to a pair of adjusting holes identical or closest to angle number, at this to hammering into fixed nail in adjusting hole, this hammer into one
It is the set location of the fixed nail after adjusting to fixed nail.
The adjustment structure includes at least two guide rods 23, and one end of two guide rods 23 is fixed on described first
In measurement bar 21, and it is vertical with first measurement bar 21；Second measurement bar 22 is provided with two difference only for two institutes
State the pilot hole 24 of the insertion of guide rod 23.This structure design, can easily adjust the second measurement bar 22 and the first measurement bar
Spacing distance between 21, moreover it is possible to ensure that the axial direction of the second measurement bar 22 is parallel all the time with the axial direction of the first measurement bar 21.
The circle center line connecting of the circle center line connecting of the paired adjusting hole 2,3,4,5,6,7 and the paired datum hole 1 it
Between differential seat angle≤6 °.Situation of the angular deviation within ± 6 ° between adjustable fixed nail line and logical condyle line, in practice
It is fully able to meet needs.
Specifically in the present embodiment, the adjusting hole 2,3,4,5,6,7 is 6 pairs, respectively first pair adjusting hole 2, second
To adjusting hole 3, the 3rd pair of adjusting hole 4, the 4th pair of adjusting hole 5, the 5th pair of adjusting hole 6 and the 6th pair of 7,6 pairs of the adjusting hole tune
Angle difference between the circle center line connecting in whole hole 2,3,4,5,6,7 and the circle center line connecting of the datum hole 1 is followed successively by 1 °, 2 °, 3 °,
4 °, 5 ° and 6 °.
Spacing between the paired adjusting hole 2,3,4,5,6,7, which is set, to be made it suitable for intending adjustment while being set in
The fixation is nailed on.In some special occasions, it can be used a pair of adjusting holes as datum hole 1.Also, paired adjusting hole it
Between spacing can be adapted to be set in and intend a pair of fixation of adjustment and nail on, when hammering into new fixed follow closely inside this pair of adjusting hole
When, two spacing fixed between the spacing between nail and original two fixed nails are identical, are easy to and other follow-up operations
Apparatus is engaged.
Also include some to translation hole 8, the circle center line connecting in the translation hole 8 in pairs and the paired datum hole 1
Circle center line connecting is parallel.After the adjusting hole of target is searched out, it is possible to situation of the adjusting hole outside vertical tangent plane occur,
At this moment it only need to adjust hole site at a pair and hammer into two adjustment nails, body 10 is removed from fixed nail and adjustment nail, will be original
Fixed nail remove, then the another pair adjusting hole of body 10 is alignd with adjustment nail, target adjustment hole is entirely fallen within to erect and is cut
On face, two fixed nails are hammered into the target adjustment hole site.
As an improvement design, as shown in figs 6-8, the survey obliquity structure include：First measurement bar 21, middle part
It is installed in rotation on the body 10, two ends are pointer, the body 10 is provided with turning with first measurement bar 21
The dynamic center of circle is the angle number 11 in the center of circle；Second measurement bar 22, be arranged in parallel with first measurement bar 21, and can be tied by adjusting
The distance between structure adjustment and first measurement bar 21, with two relative pointers.
In the present embodiment, body 10 is stainless steel plate, or the other materials such as iron, copper, alloy.
Embodiment 2
The present embodiment provides a kind of application method of joint replacement adjuster, with reference to shown in Fig. 4, comprises the following steps：
A pair of datum holes 1 on body 10 are set in a pair of fixations for intending adjusting and nailed on by S1；
S2 measures the differential seat angle between logical condyle line and the circle center line connecting of a pair of datum holes 1 using survey obliquity structure, and finds out
The circle center line connecting of circle center line connecting and the datum hole 1 has a pair of adjusting holes identical or closest to differential seat angle；
S3 resets new fixed nail in the position for the pair of adjusting hole 2,3,4,5,6,7 found out.
The application method of joint replacement adjuster in the present embodiment, the lines and logical condyle line of nail can be fixed at two not
When parallel, the set location of fixed nail is more accurately adjusted, so that the line of the fixed nail after adjustment reaches with logical condyle line
It is preferably parallel.
When being unsuitable for setting new fixed nail in the position for the pair of adjusting hole 2,3,4,5,6,7 found out, in addition to
Following steps：
S2.1 sets adjustment nail through a pair of translation holes 8；
S2.2 removes the body 10 from the fixed nail and the adjustment nail, the fixed nail is removed, by institute
State body 10 to translate, translation hole 8 described in the another pair of the body 10 is set in the adjustment nail.
By aforesaid operations, target adjustment hole can be adjusted to being respectively positioned on inside vertical tangent plane, in order to install.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. a kind of joint replacement adjuster, it is characterised in that：Including body (10), the body (10) is provided with least one pair of
Datum hole (1) and some to adjusting hole (2,3,4,5,6,7), the spacing between the paired datum hole (1), which is set, causes it
The fixation for intending adjustment suitable for being set in simultaneously is nailed on；
The circle center line connecting of the paired datum hole (1) with the immediate paired adjusting hole of its inclined degree (2,3,
4,5,6,7) differential seat angle≤2 ° between circle center line connecting, the immediate any two pairs of adjusting holes of inclined degree (2,3,4,
5,6,7) differential seat angle≤2 ° between circle center line connecting；
Also include the survey obliquity structure being arranged on the body (10), for measuring logical condyle line and the paired datum hole
(1) the differential seat angle between circle center line connecting；
The body (10) has the first side (101) and second side parallel with the circle center line connecting of the datum hole (1)
(102), and the first side (101) and first arc-shaped side (103) of the second side (102) and the second arc are connected
Side (104).
2. joint replacement adjuster according to claim 1, it is characterised in that：The survey obliquity structure includes：
First measurement bar (21), one end is installed in rotation on the body (10), and the other end is pointer；
Angle number (11), is arranged on the body (10), and using the rotation center of circle of first measurement bar (21) as angle top
Point；
Second measurement bar (22), be arranged in parallel with first measurement bar (21), and can be by adjusting structural adjustment and described the
The distance between one measurement bar (21), with two axially distributed relative pointers.
3. joint replacement adjuster according to claim 2, it is characterised in that：The adjustment structure includes at least two
The guide rod (23) be arrangeding in parallel, one end of two guide rods (23) is fixed on first measurement bar (21), and with
First measurement bar (21) is vertical；Second measurement bar (22) is provided with two difference only for two guide rods (23)
The pilot hole (24) of insertion.
4. the joint replacement adjuster according to any one of claim 1-3, it is characterised in that：The paired benchmark
The circle center line connecting in hole (1) and the circle center line connecting with the immediate paired adjusting hole (2,3,4,5,6,7) of its inclined degree
Between differential seat angle≤1 °, the circle center line connectings of the immediate any two pairs of adjusting holes (2,3,4,5,6,7) of inclined degree it
Between differential seat angle≤1 °.
5. joint replacement adjuster according to claim 1, it is characterised in that：The adjusting hole in pairs (2,3,4,
5,6,7) differential seat angle≤6 ° between circle center line connecting and the circle center line connecting of the datum hole (1) in pairs.
6. joint replacement adjuster according to claim 5, it is characterised in that：The adjusting hole (2,3,4,5,6,7)
For 6 pairs, respectively first pair adjusting hole (2), second pair of adjusting hole (3), the 3rd pair of adjusting hole (4), the 4th pair of adjusting hole (5),
5th pair of adjusting hole (6) and the 6th pair of adjusting hole (7), circle center line connecting and the base of 6 pairs of adjusting holes (2,3,4,5,6,7)
Angle difference between the circle center line connecting of quasi- hole (1) is followed successively by 1 °, 2 °, 3 °, 4 °, 5 ° and 6 °.
7. joint replacement adjuster according to claim 6, it is characterised in that：The adjusting hole in pairs (2,3,4,
5,6,7) spacing between, which is set, to be made it suitable for nailing on while being set in the fixation for intending adjusting.
8. joint replacement adjuster according to claim 1, it is characterised in that：Also including some to translating hole (8), into
To the translation hole (8) circle center line connecting it is parallel with the circle center line connecting of the paired datum hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610481448.9A CN106137308B (en) | 2016-06-26 | 2016-06-26 | A kind of joint replacement adjuster |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610481448.9A CN106137308B (en) | 2016-06-26 | 2016-06-26 | A kind of joint replacement adjuster |
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| Publication Number | Publication Date |
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| CN106137308A CN106137308A (en) | 2016-11-23 |
| CN106137308B true CN106137308B (en) | 2017-10-24 |
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| CN201610481448.9A Expired - Fee Related CN106137308B (en) | 2016-06-26 | 2016-06-26 | A kind of joint replacement adjuster |
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Citations (5)
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|---|---|---|---|---|
| CN2745524Y (en) * | 2003-09-20 | 2005-12-14 | 马卫华 | Intramedullary positioning guide device for neck of femur osteotomy |
| CN101652112A (en) * | 2007-04-04 | 2010-02-17 | 亚历山大研究科学有限责任公司 | Be used to carve the equipment and the method for articular surface |
| CN101969869A (en) * | 2007-12-06 | 2011-02-09 | 史密夫和内修有限公司 | Systems and methods for determining the mechanical axis of a femur |
| CN102579169A (en) * | 2012-03-20 | 2012-07-18 | 南京大学医学院附属鼓楼医院 | Femoral medullary cavity center line locator |
| CN204520919U (en) * | 2015-01-19 | 2015-08-05 | 北京纳通科技集团有限公司 | Distal femur cutting assembly and the positioner that turns up |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2259755B1 (en) * | 2006-09-06 | 2017-01-18 | Smith & Nephew, Inc. | Implants with transition surfaces |
-
2016
- 2016-06-26 CN CN201610481448.9A patent/CN106137308B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2745524Y (en) * | 2003-09-20 | 2005-12-14 | 马卫华 | Intramedullary positioning guide device for neck of femur osteotomy |
| CN101652112A (en) * | 2007-04-04 | 2010-02-17 | 亚历山大研究科学有限责任公司 | Be used to carve the equipment and the method for articular surface |
| CN101969869A (en) * | 2007-12-06 | 2011-02-09 | 史密夫和内修有限公司 | Systems and methods for determining the mechanical axis of a femur |
| CN102579169A (en) * | 2012-03-20 | 2012-07-18 | 南京大学医学院附属鼓楼医院 | Femoral medullary cavity center line locator |
| CN204520919U (en) * | 2015-01-19 | 2015-08-05 | 北京纳通科技集团有限公司 | Distal femur cutting assembly and the positioner that turns up |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106137308A (en) | 2016-11-23 |
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