CN105962988A - Adjuster for joint replacement and use method of adjuster - Google Patents
Adjuster for joint replacement and use method of adjuster Download PDFInfo
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- CN105962988A CN105962988A CN201610481453.XA CN201610481453A CN105962988A CN 105962988 A CN105962988 A CN 105962988A CN 201610481453 A CN201610481453 A CN 201610481453A CN 105962988 A CN105962988 A CN 105962988A
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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
Abstract
The invention provides an adjuster for joint replacement and a use method of the adjuster. The adjuster for joint replacement comprises a body, wherein at least one pair of datum holes and multiple pairs of adjusting holes are formed in the body, and the paired datum holes can be simultaneously attached to and sleeve fastening nails to be adjusted due to interval setting of the paired datum holes; a pair of adjusting holes whose center connecting line forms the minimum angle difference with a center connecting line of the paired datum holes is set, and the maximum angle difference between the center connecting line of the adjusting holes and the center connecting line of the paired datum holes is 2 degrees; the maximum angle difference between center connecting lines, having the most similar inclination degree, of two pairs of adjusting holes is 2 degrees. Compared with human eye estimation in the prior art, the adjuster is easier to master and can control the error within 2 degrees; the adjusted two fastening nails are taken as a basis, a front tangent plane and a rear tangent plane can be effectively controlled to be basically parallel to the epicondylar axis, improper external rotation osteotomy of anterior and posterior condyle of thighbones is avoided, accurate osteotomy is realized, and the clinical efficacy is improved.
Description
Technical field
The present invention relates to total knee replacement technical field of medical instruments, be specifically related toA kind of joint replacement adjustor and using method thereof。
Background technology
Along with making constant progress of medical skill, artificial knee replacement surgery has become one of conventional treatments for the treatment of pathologic changes of knee joint.Artificial knee joint replacement is the joint utilizing artificial joint prosthesis to substitute disease damage, to recover and to improve function of joint, improves the quality of living.Due to artificial knee joint replacement short treating period, alleviating pain effect is obvious, is accepted by increasing doctors and patients.In total knee replacement, need distal femur is carried out osteotomy, to obtain the femur model installing artificial joint prosthesis,Such as figure 1Shown in, first row distal femur is carried out osteotomy, forms a vertical tangent plane a, then two side grain b vertical with this vertical tangent plane a are formed, oblique section c is formed again between vertical tangent plane a and side grain b, suitable with the internally installed space with artificial joint prosthesis, convenient installation.
Stretch the balance in gap of going down on one's knees to obtain knee joint, in addition it is also necessary to make upper and lower two side grains parallel with the logical condyle line in joint to be replaced, i.e. withFigure 2In line d parallel.In order to reach this purpose, it is usually and first on the vertical tangent plane a in joint to be replaced, calibrates this line d, the most again on the basis of this line d, cut out above-mentioned two side grain b.In order to calibrate the parallel lines of this line d on vertical tangent plane a, in prior art frequently withFigure 3Shown calibration tool, calibration tool have main body 01 and with the collet 02 that main body 01 is fixed together, main body 01 is additionally provided with two through holes 03；Timing signal, first is adjacent to be fixed on by collet 02 extrudingDiagramFemoral-posterior condyles at, at through hole 03, then hammer into two fixing nails 04, after being removed by calibration tool, fixing nail 04 is stayed on joint to be replaced, and the lines of two fixing nails 04 are the parallel lines of line d.
This calibration tool of the prior art, is to realize according to the special angle being generally of between collet 02 and logical condyle line, however the joint of different patient not exclusively as, the special angle between collet 02 and logical condyle line is the most different.When using above-mentioned calibration tool to go to, with same default special angle, the joint demarcating different patient, the line of the fixing nail 04 of two hammered into inside two through holes 03, often and there is angular error, generally within ± 6 ° between real logical condyle line.When this error occurs in actual operation, owing to adjusting instrument the most accurately, it is usually operative doctor directly to estimate with eyes, obvious inaccurate fixing nail 04 is removed, on joint to be replaced, order one or two the most again fix nail 04 to re-scale the parallel lines of line d, but estimating of human eye is the most accurate, error is still suffered between line and the logical condyle line of the fixing nail 04 that human eye hammers into after estimating again, with this line for standard remove to cut upper and lower two tangent planes time, still there will be upper and lower two tangent planes and logical condyle line and there is the defect of deviation, cause postoperative comfort level poor.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to overcome when the parallel lines of the line d using calibration tool of the prior art to demarcate are not parallel with logical condyle line, special adjustment instrument is not had to be adjusted, human eye is needed to estimate, cause the technological deficiency that the parallel lines of line d demarcated can not be the most consistent with logical condyle line, thus provide a kind of and the parallel lines of above-mentioned line d accurately can be adjusted, so that the line consistent joint replacement adjustor parallel with logical condyle line demarcated.
The present invention also provides for the using method of a kind of joint replacement adjustor.
For this, the present invention provides a kind of joint replacement adjustor, including body, described body is provided with at least one pair of datum hole and some to adjusting hole, and the spacing setting between paired described datum hole making it suitable for fitting simultaneously and being set in fixing the nailing on of plan adjustment；
A pair adjusting hole that between the circle center line connecting of circle center line connecting and paired described datum hole, differential seat angle is minimum, the differential seat angle between the circle center line connecting of its circle center line connecting and paired described datum hole is 2 ° to the maximum；Inclined degree immediate any two is 2 ° to the maximum to the differential seat angle between the circle center line connecting of described adjusting hole；
Described body has the first side parallel with the circle center line connecting of described datum hole and second side, and connects described first side and the first arc-shaped side of described second side and the second arc-shaped side.
As a kind of preferred version, a pair adjusting hole that between the circle center line connecting of circle center line connecting and paired described datum hole, differential seat angle is minimum, the differential seat angle between the circle center line connecting of its circle center line connecting and paired described datum hole is 1 ° to the maximum；Inclined degree immediate any two is 1 ° to the maximum to the differential seat angle between the circle center line connecting of described adjusting hole.
As a kind of preferred version, the paired circle center line connecting of described datum hole and two edges of described body are crossed to form two reference mark positions respectively, with reference mark position at least one described for angle summit, the edge of described body is uniformly arranged several angles mark.
As a kind of preferred version, along the direction perpendicular with the circle center line connecting direction of paired described datum hole, certain length is stretched on described datum hole edge becomes elongate holes.
As a kind of preferred version, differential seat angle≤6 ° between circle center line connecting and the circle center line connecting of paired described datum hole of arbitrary paired described adjusting hole.
As a kind of preferred version, described adjusting hole is 6 right, respectively first pair adjusting hole, second pair of adjusting hole, 3rd pair of adjusting hole, 4th pair of adjusting hole, the 5th pair of adjusting hole and the 6th pair of adjusting hole, 6 are followed successively by 1 ° to the angle difference between circle center line connecting and the circle center line connecting of described datum hole of described adjusting hole, 2 °, 3 °, 4 °, 5 ° and 6 °.
As a kind of preferred version, the spacing between paired described adjusting hole arranges that making it suitable for fits simultaneously and is set in intend adjusting described fixing and nails on.
As a kind of preferred version, also including some to translation hole, the circle center line connecting in paired described translation hole is parallel with the circle center line connecting of paired described datum hole.
The present invention also provides for the using method of a kind of joint replacement adjustor, comprises the steps:
A pair datum hole laminating on body is set in fixing for a pair of plan adjustment nail on；
Find out circle center line connecting parallel with logical condyle line or closest to parallel a pair adjusting hole；
New fixing nail is reset in the position of the pair of adjusting hole found out.
As a kind of preferred version, when being unsuitable for arranging new fixing nail in the position of the pair of adjusting hole found out, also comprise the steps:
Through a pair translation hole, adjustment nail is set；
Described body is nailed on take off from described fixing nail and described adjustment, described fixing nail is removed, described body is translated, make translation borehole jack described in the another pair of described body be located at described adjustment and nail on.
The joint replacement adjustor of present invention offer and using method thereof, when the line of two fixing nails that the calibration tool in the prior art is marked is not parallel with logical condyle line, adjust the position of two fixing nails so that it is line is exactly parallel with logical condyle line, has the advantage that
1. the joint replacement adjustor of the present invention, body is provided with at least one pair of datum hole and some to adjusting hole, paired datum hole is suitable to fit simultaneously and is set in fixing the nailing on of plan adjustment, a pair adjusting hole that circle center line connecting is minimum with the circle center line connecting differential seat angle of paired datum hole, the differential seat angle between the circle center line connecting of its circle center line connecting and paired datum hole is 2 ° to the maximum；Differential seat angle between the circle center line connecting of the immediate any two pairs of adjusting holes of inclined degree is 2 ° to the maximum.So when using calibration tool to nail on two fixing nails on the vertical tangent plane in joint to be replaced, and the lines of two fixing nails not parallel with logical condyle line time, a pair datum hole laminating of joint replacement adjustor of the present invention can be set in two and fixing nail on by people, then ruler or other similar instruments is utilized to go to mark logical condyle line, then which is found out the circle center line connecting of adjusting hole is overlapped parallel or closest parallel with the logical condyle line marked, at this found out, adjusting hole inside is hammered into two again and fix nail, original two fixing nails are removed and can obtain two fixing nails that line is parallel with logical condyle line.The joint replacement adjustor of the present invention is more easily held compared with estimating with human eye of the prior art, and can control error within 2 °.Further, arranging a pair adjusting hole that circle center line connecting is minimum with the circle center line connecting differential seat angle of paired datum hole, the differential seat angle between the circle center line connecting of its circle center line connecting and paired datum hole is 1 ° to the maximum；Differential seat angle between the circle center line connecting of the immediate any two pairs of adjusting holes of inclined degree is 1 ° to the maximum, can will control error within 1 °, thus substantially increase demarcation degree of accuracy, based on adjusting the fixing nail of complete two, can effectively control upper and lower two tangent planes substantially parallel with logical condyle line, avoid the occurrence of eccentric wear, improve postoperative experience.
2. the joint replacement adjustor of the present invention, the circle center line connecting of paired datum hole and the two of body edges are crossed to form two reference mark positions respectively, with a reference mark position for angle summit, are evenly arranged with several angles mark on the edge of body；When the line of the fixing nail of use calibration tool to hammer on the vertical tangent plane in joint to be replaced two is not parallel with logical condyle line, but when having a reference mark position substantially aligned with one end of logical condyle line, the other end that observable leads to condyle line is corresponding with which angle mark, be then read out this angle mark with reference mark differential seat angle, the circle center line connecting with datum hole is found to become poor a pair adjusting hole of equal angular again, at this, adjusting hole inside hammered into two new fixing nails, original fixing nail is removed, two fixing nails that line is parallel with logical condyle line can be obtained.Further, along the direction perpendicular with the circle center line connecting direction of paired datum hole, certain length is stretched on datum hole edge becomes elongate holes, so when not aliging with any one reference mark position in the two ends of logical condyle line, direction can be stretched along the edge of datum hole and move integrally body, so that aliging with one end of logical condyle line in a reference mark position.
3. the joint replacement adjustor of the present invention, differential seat angle≤6 ° between circle center line connecting and the circle center line connecting of paired datum hole of paired adjusting hole, angular deviation situation within ± 6 ° between adjustable fixing nail line and logical condyle line, is fully able to meet needs in practice.
4. the joint replacement adjustor of the present invention, the spacing setting between paired adjusting hole making it suitable for fitting simultaneously and being set in fixing the nailing on of plan adjustment, so at some special occasions, can a pair adjusting hole be used as datum hole.And, the paired spacing between adjusting hole can be adapted to fit and is set in that intend adjusting a pair is fixing to be nailed on, when adjusting hole inside being hammered into new fixing nail at this, spacing between two fixing nails is identical with the spacing between original two fixing nails, it is simple to match with other follow-up operating theater instruments.
5. the joint replacement adjustor of the present invention, also include translating hole, when after the adjusting hole searching out target, situation outside likely one adjusting hole of appearance is positioned at vertical tangent plane, at this moment only need to hammer into two and adjust nail, be nailed on from fixing nail and adjustment by body and take off a pair adjusting hole position, original fixing nail is removed, again the another pair adjusting hole of body is alignd with adjusting nail, make target adjustment hole entirely fall within vertical tangent plane, hammer into two in this target adjustment hole site and fixing follow closely.
6. the present invention also provides for the using method of a kind of joint replacement adjustor, the using method of joint replacement adjustor of the present invention, can be when the line of two fixing nails be not parallel with logical condyle line, adjust fixing nail arranges position, so that the line of the fixing nail after Tiao Zhenging reaches the most parallel with logical condyle line.
The using method of joint replacement adjustor the most of the present invention, after searching out target adjustment hole, it may also occur that an adjusting hole is positioned at outside vertical tangent plane, so that the problem that fixing nail cannot be set；At this moment can follow closely by mounting and adjusting in translation hole, then body be nailed on from fixing nail and adjustment and take off, original fixing nail is removed, whole body is made to translate, another making body is located at adjustment nails on translation borehole jack, thus is adjusted in target adjustment hole to being respectively positioned on inside vertical tangent plane, in order to install.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in prior art or the specific embodiment of the invention, below prior art or detailed description of the invention are described used inAccompanying drawingIt is briefly described, it should be apparent that, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to theseAccompanying drawingObtain otherAccompanying drawing。
Figure 1It is that condyle osteotomy forms side grain and the signal of oblique section before and after joint to be replaced up distal femur osteotomy forms vertical tangent plane, femurFigure。
Figure 2It it is the position signal of logical condyle lineFigure。
Figure 3It it is the structural representation of calibration tool in prior artFigure。
Figure 4It it is the vertical view of joint replacement adjustor in the embodiment of the present inventionFigure。
Figure 5BeFigure 4In set up and survey the vertical view after obliquity structureFigure。
Figure 6It it is the overall structure signal of the body of improvement project in embodiment 3Figure。
Figure 7It it is the structural representation surveying obliquity structure of improvement project in embodiment 3Figure。
Figure 8It isFigure 7It is installed toFigure 6Structural representation after onFigure。
Attached FigureLabelling: 01-main body, 02-collet, 03-through hole, the fixing nail of 04-, 10-body, 101-first side, 102-second side, 103-the first arc-shaped side, 104-the second arc-shaped side, 1-datum hole, 11-angle number, 200-reference mark position, 201-angle identifies, and 21-first measures bar, and 22-second measures bar, 23-guide post, 24-pilot hole, 2-first is to adjusting hole, and 3-second is to adjusting hole, the 3rd pair of adjusting hole of 4-, the 4th pair of adjusting hole of 5-, the 5th pair of adjusting hole of 6-, the 6th pair of adjusting hole of 7-, 8-translates hole.
Detailed description of the invention
Below in conjunction with descriptionAccompanying drawingTechnical scheme is described, it is clear that following embodiment is not the embodiment that the present invention is whole.Based on embodiment described in the invention, the every other embodiment that those of ordinary skill in the art are obtained under not making other creative work premises, broadly fall into protection scope of the present invention.
It should be noted that in describing the invention, term " first ", " second " are only used for describing purpose, and it is not intended that indicate or hint relative importance.As long as just can be combined with each other additionally, technical characteristic involved in invention described below difference embodiment does not constitutes conflict each other.
Embodiment 1
The present embodiment provides a kind of joint replacement adjustor,Such as figure 4Shown in, including body 10, described body 10 is provided with a pair datum hole 1 and some to adjusting hole 2, and 3,4,5,6,7, the spacing between paired described datum hole 1 arranges that making it suitable for fits simultaneously and is set in intend adjusting fixing and nailing on；A pair adjusting hole 2 that between the circle center line connecting of circle center line connecting and paired described datum hole 1, differential seat angle is minimum, 3,4,5,6,7, the differential seat angle between the circle center line connecting of its circle center line connecting and paired described datum hole 1 is 2 ° to the maximum；Inclined degree immediate any two is 2 ° to the maximum to the differential seat angle between the circle center line connecting of described adjusting hole 2,3,4,5,6,7；Described body 10 has the first side 101 parallel with the circle center line connecting of described datum hole 1 and second side 102, and connects the first arc-shaped side 103 and the second arc-shaped side 104 of described first side 101 and described second side 102.
The joint replacement adjustor of the present embodiment, on the vertical tangent plane in joint to be replaced, two fixing nails are nailed on when using calibration tool, and the lines of two fixing nails not parallel with logical condyle line time, a pair datum hole 1 of the present embodiment joint replacement adjustor can be fitted and be set in two and fixing nail on by people, then ruler or other similar instruments is utilized to go to mark logical condyle line, then which is found out the circle center line connecting of adjusting hole is overlapped or parallel with the logical condyle line marked, at this found out, adjusting hole inside is hammered into two again and fix nail, original two fixing nails are removed and can obtain two fixing nails that line is parallel with logical condyle line.The joint replacement adjustor of the present embodiment is more easily held compared with estimating with human eye of the prior art, and can control error within 2 °.Further, arranging a pair adjusting hole 1 minimum between the circle center line connecting differential seat angle of circle center line connecting and paired described datum hole 1, the differential seat angle between the circle center line connecting of its circle center line connecting and paired described datum hole 1 is 1 ° to the maximum；Inclined degree immediate any two is to described adjusting hole 2,3,4,5,6, differential seat angle between the circle center line connecting of 7 is 1 ° to the maximum, by control error within 1 °, thus can substantially increase demarcation degree of accuracy, based on adjusting the fixing nail of complete two, can effectively control upper and lower two tangent planes substantially parallel with logical condyle line, it is to avoid eccentric wear occurs, improves postoperative experience.
The paired circle center line connecting of described datum hole 1 and two edges of described body 10 are crossed to form two reference mark positions 200 respectively, with reference mark position 200 at least one described for angle summit, the edge of described body 10 is uniformly arranged several angles mark 201.When the line of the fixing nail of use calibration tool to hammer on the vertical tangent plane a in joint to be replaced two is not parallel with logical condyle line, but when having a reference mark position 200 substantially aligned with one end of logical condyle line, observable leads to the other end of condyle line, and which angle to identify 201 with corresponding, be then read out this angle mark 201 with reference mark 200 differential seat angle, find a pair adjusting hole becoming equal angular poor with the circle center line connecting of datum hole 1 again, at this, adjusting hole inside hammered into two new fixing nails, original fixing nail is removed, two fixing nails that line is parallel with logical condyle line can be obtained.Further, along the direction perpendicular with the circle center line connecting direction of paired datum hole 1, certain length is stretched on datum hole edge becomes elongate holes, so when not aliging with any one reference mark position in the two ends of logical condyle line, direction can be stretched along the edge of datum hole and move integrally body, (this kind of scheme so that aliging with one end of logical condyle line in a reference mark positionIn figureNot shown).
Can also mark on described body 10, the angle difference between circle center line connecting and the circle center line connecting of datum hole 1 of adjusting hole described in any pair, in order to find.
Differential seat angle≤6 ° between circle center line connecting and the circle center line connecting of paired described datum hole 1 of paired described adjusting hole 2,3,4,5,6,7.Angular deviation situation within ± 6 ° between adjustable fixing nail line and logical condyle line, is fully able to meet needs in practice.
The most in the present embodiment, described adjusting hole 2,3,4,5,6,7 is 6 right, 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, the 5th pair of adjusting hole 6 and the 6th pair of adjusting hole 7,6 pairs of described adjusting holes 2,3,4,5, angle difference between circle center line connecting and the circle center line connecting of described datum hole 1 of 6,7 is followed successively by 1 °, 2 °, 3 °, 4 °, 5 ° and 6 °.
The paired spacing between described adjusting hole 2,3,4,5,6,7 arranges that making it suitable for fits simultaneously and is set in intend adjusting described fixing and nails on.At some special occasions, a pair adjusting hole can be used as datum hole 1.And, the paired spacing between adjusting hole can be adapted to fit and is set in that intend adjusting a pair is fixing to be nailed on, when adjusting hole inside being hammered into new fixing nail at this, spacing between two fixing nails is identical with the spacing between original two fixing nails, it is simple to match with other follow-up operating theater instruments.
Also including some to translation hole 8, the circle center line connecting in paired described translation hole 8 is parallel with the circle center line connecting of paired described datum hole 1.When after the adjusting hole searching out target, situation outside likely one adjusting hole of appearance is positioned at vertical tangent plane, at this moment only need to hammer into two a pair adjusting hole position and adjust nail, body 10 is nailed on from fixing nail and adjustment and takes off, original fixing nail is removed, again the another pair adjusting hole of body 10 is alignd with adjusting nail, make target adjustment hole entirely fall within vertical tangent plane, hammer into two in this target adjustment hole site and fixing follow closely.
In the present embodiment, body 10 is corrosion resistant plate, it is also possible to for other materials such as ferrum, copper, alloys.
Embodiment 2
The present embodiment provides the using method of a kind of joint replacement adjustor, referenceFigure 4Shown in, comprise the steps:
S1. a pair datum hole 1 laminating on body 10 is set in fixing for a pair of plan adjustment to nail on；
S2. circle center line connecting is found out parallel with logical condyle line or closest to parallel a pair adjusting hole 2,3,4,5,6,7；
S3. the position in the pair of adjusting hole 2,3,4,5,6,7 found out resets new fixing nail.
The using method of joint replacement adjustor in the present embodiment, it is possible to when the line of two fixing nails is not parallel with logical condyle line, adjust fixing nail arranges position, so that the line of the fixing nail after Tiao Zhenging reaches the most parallel with logical condyle line.
When being unsuitable for arranging new fixing nail in the position of the pair of adjusting hole 2,3,4,5,6,7 found out, also comprise the steps:
S2.1 arranges adjustment nail through a pair translation hole 8；
Described body 10 is nailed on take off from described fixing nail and described adjustment by S2.2, is removed by described fixing nail, is translated by described body 10, makes translation hole 8 described in the another pair of described body 10 be set in described adjustment and nails on.
Pass through aforesaid operations, it is possible to adjusted in target adjustment hole to being respectively positioned on inside vertical tangent plane, in order to install.
Embodiment 3
The present embodiment provides a kind of joint replacement adjustor, and it is the deformation on the basis of embodiment 1,Such as figure 5Shown in, difference is: also include surveying obliquity structure, (this survey obliquity structure no longer arranges angle mark with the intersection point of a pair datum hole 1 on body 10 and body 10 edge for the center of circle, but reset survey obliquity structure), described survey obliquity structure is arranged on described body 10, the differential seat angle between the circle center line connecting measuring logical condyle line and paired datum hole 1.
Described survey obliquity structure includes: first measures bar 21, and one end is installed in rotation on described body 10, and the other end is pointer, and described body 10 is provided with the described first rotation center of circle angle number 11 as the center of circle measuring bar 21；Second measures bar 22, measures bar 21 with described first and be arranged in parallel, and can measure the distance between bar 21 by adjusting structural adjustment and described first, has two relative pointers.
When the line of the fixing nail of use calibration tool to hammer on the vertical tangent plane a in joint to be replaced two is not parallel with logical condyle line, adjust the rotational angle of the first measurement bar 21, and adjust the second measurement bar 22 and spacing distance of the first measurement bar 21, two relative pointer of the second measurement bar 22 are made to align with the two ends of logical condyle line, it is then read out the angle value that the first measurement bar 21 is pointed out on angle number 11, then the circle center line connecting with a pair datum hole 1 is found to become a pair adjusting hole 2 of the same angular number of degrees, 3, 4, 5, 6, 7, at this to hammering into fixing nail in adjusting hole, the fixing nail of this pair hammered into be adjustment after fixing nail position is set.
In this enforcement, described adjustment structure includes that at least two guide post 23, one end of two described guide posts 23 are fixed on described first and measure on bar 21, and it is vertical to measure bar 21 with described first；Described second measures bar 22 is provided with two pilot holes 24 being intended for two described guide posts 23 insertions respectively.This structure designs, and can adjust the second measurement bar 22 and first easily and measure the spacing distance between bar 21, moreover it is possible to ensure the second measurement bar 22 axially measures the most parallel of bar 21 with first.
As a kind of improved design project,Such as figure 6-8Shown in, described survey obliquity structure includes: first measures bar 21, and middle part is installed in rotation on described body 10, and two ends are pointer, and described body 10 is provided with the described first rotation center of circle angle number 11 as the center of circle measuring bar 21；Second measures bar 22, measures bar 21 with described first and be arranged in parallel, and can measure the distance between bar 21 by adjusting structural adjustment and described first, has two relative pointers.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or variation still in the protection domain of the invention among.
Claims (9)
1. a joint replacement adjustor, it is characterised in that: include body (10), described body
(10) at least one pair of datum hole (1) it is provided with and some to adjusting hole (2,3,4,5,6,7), in pairs
Described datum hole (1) between spacing arrange making it suitable for fitting simultaneously and be set in consolidating of intending adjusting
Surely nail on；
A pair that between the circle center line connecting of circle center line connecting and paired described datum hole (1), differential seat angle is minimum
The circle center line connecting of adjusting hole (2,3,4,5,6,7), its circle center line connecting and paired described datum hole (1)
Between differential seat angle be 2 ° to the maximum；Inclined degree immediate any two is to described adjusting hole
(2,3,4,5,6,7) the differential seat angle between circle center line connecting is 2 ° to the maximum；
Described body (10) has the first side (101) parallel with the circle center line connecting of described datum hole (1)
With second side (102), and connect described first side (101) and described second side (102)
The first arc-shaped side (103) and the second arc-shaped side (104).
Joint replacement adjustor the most according to claim 1, it is characterised in that: the center of circle is even
A pair adjusting hole (1) that between the circle center line connecting of line and paired described datum hole (1), differential seat angle is minimum,
Differential seat angle between the circle center line connecting of its circle center line connecting and paired described datum hole (1) is 1 ° to the maximum；
Between the inclined degree immediate any two circle center line connecting to described adjusting hole (2,3,4,5,6,7)
Differential seat angle is 1 ° to the maximum.
Joint replacement adjustor the most according to claim 1 and 2, it is characterised in that: become
To the circle center line connecting of described datum hole (1) intersect shape respectively with two edges of described body (10)
Become two reference mark positions (200), be angle summit with reference mark position (200) at least one described,
The edge of described body (10) is uniformly arranged several angles mark (201).
4., according to the joint replacement adjustor according to any one of claim 1-3, its feature exists
In: the circle center line connecting of arbitrary paired described adjusting hole (2,3,4,5,6,7) and paired described benchmark
Differential seat angle≤6 ° between the circle center line connecting in hole (1).
Joint replacement adjustor the most according to claim 4, it is characterised in that: described tune
Whole hole (2,3,4,5,6,7) is 6 right, respectively first pair adjusting hole (2), second pair of adjusting hole (3),
3rd pair of adjusting hole (4), the 4th pair of adjusting hole (5), the 5th pair of adjusting hole (6) and the 6th is to adjustment
Hole (7), 6 to the circle center line connecting of described adjusting hole (2,3,4,5,6,7) and described datum hole (1)
Angle difference between circle center line connecting is followed successively by 1 °, 2 °, 3 °, 4 °, 5 ° and 6 °.
Joint replacement adjustor the most according to claim 5, it is characterised in that: paired
Spacing between described adjusting hole (2,3,4,5,6,7) arranges and makes it suitable for fitting being set in plan simultaneously
Described the fixing adjusted nails on.
7., according to the joint replacement adjustor according to any one of claim 1-6, its feature exists
In: also including some to translation hole (8), the circle center line connecting of paired described translation hole (8) is with paired
The circle center line connecting of described datum hole (1) parallel.
8. a using method for joint replacement adjustor as according to any one of claim 1-7,
It is characterized in that: comprise the steps:
A pair datum hole (1) laminating on body (10) is set in fixing for a pair of plan adjustment nail on；
Find out circle center line connecting parallel with described logical condyle line or closest to parallel a pair adjusting hole
(2,3,4,5,6,7)；
New fixing nail is reset in the position of the pair of adjusting hole (2,3,4,5,6,7) found out.
The using method of joint replacement adjustor the most according to claim 8, it is characterised in that:
When being unsuitable for arranging new fixing nail in the position of the pair of adjusting hole (2,3,4,5,6,7) found out,
Also comprise the steps:
Through a pair translation hole (8), adjustment nail is set；
Described body (10) is nailed on take off from described fixing nail and described adjustment, by described fixing nail
Remove, described body (10) is translated, make to translate described in the another pair of described body (10) hole
(8) it is set in described adjustment to nail on.
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| CN105962988B (en) | 2019-02-12 |
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