CN104840240A - Femur osteotomy assistor - Google Patents
Femur osteotomy assistor Download PDFInfo
- Publication number
- CN104840240A CN104840240A CN201510263130.9A CN201510263130A CN104840240A CN 104840240 A CN104840240 A CN 104840240A CN 201510263130 A CN201510263130 A CN 201510263130A CN 104840240 A CN104840240 A CN 104840240A
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- far
- guide pin
- assistor
- sleeve pipe
- auxiliary member
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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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1657—Bone breaking devices
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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
-
- 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 discloses a femur osteotomy assistor. The femur osteotomy assistor comprises a distal assisting piece, a proximal assisting piece and a connecting piece, wherein the distal assisting piece is mounted on the lateral surface of the far end of the femur diaphysis, the proximal assisting piece is mounted on the lateral surface of the near end of the femur diaphysis, and the connecting piece is used for fixing the relative positions of the distal assisting piece and the proximal assisting piece; distal guide needle cannulas perpendicular to the lateral surface of the far end of the femur diaphysis are arranged on the distal assisting piece, proximal guide needle cannulas perpendicular to the lateral surface of the near end of the femur diaphysis are arranged on the proximal assisting piece, an included angle between the distal guide needle cannulas and the proximal guide needle cannulas is 10-35 degrees, and during use, the femur diaphysis position subjected to osteotomy is positioned in an interval between the distal guide needle cannulas and the proximal guide needle cannulas. The femur osteotomy assistor has the advantages that accuracy in osteotomy length and rotating angle of the far end of the femur diaphysis can be improved effectively, and good surgical effect is guaranteed.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of femur osteotomy assistor for the operation of DDH (i.e. developmentaldysplasia of the hip, Chinese is " developmental dislocation of hip joint ") infant enforcement femoral prosthesis.
Background technology
Developmental dislocation of hip joint, be characterized in that femoral shaft 4 and acetabular bone 8 lose normal alignment, as shown in Figure 1, great majority show as partial femoral head or all deviate from acetabular bone, cause the performance of pathological changes femur relatively normal femur long, and pathological changes often involve ligament around acetabular bone, femoral head, joint capsule and hip joint and muscle.Developmental dislocation of hip joint is common child's skeleton developmental character disease, usually merges femoral anteversion angle and increases, and femoral anteversion angle increases simultaneously is also one of reason causing secondary acetabular dysplasia.In general, the size of normal anteversion of femoral neck (i.e. angle formed by neck of femur axis and femoral shaft coronalplane) is between 10 ~ 30 °, and the anteversion of femoral neck after dislocation is usually between 40 ~ 60 °, so the number of degrees that the common plan of human body rectifys top rake are 10 ~ 35 °.
And the Therapeutic Principle of developmental dislocation of hip joint carries out personalized selection according to all ages and classes of infant and hip joint development pathological characteristic.Concerning most of low age infant, closed reduction and plaster fixing are unusual effective measures, but older infant often needs operative treatment, such as be greater than to the infant of 18 months the age, usually need to adopt the kirschner skill of handling needles to treat, the mode adding femoral rotation cripetura osteotomy by open reduction shortens the long femur of pathological changes and the excessive top rake of RA using the chief surgical Therapeutic Method as this disease for the treatment of, and the method detailed process is as follows:
1st step, as shown in Figure 2, first determine the concrete number of degrees intending correcting top rake, and the femoral shaft osteotomy position 43 found out in femoral shaft 4 between femoral shaft far-end 41 and femoral shaft near-end 42, described femoral shaft osteotomy position 43 specifically refers to the distance between femoral shaft cartilage surface upper limb to acetabular roof, is generally l ~ 2cm.Then on the greater trochanter of femoral shaft near-end 42, to insert a Kirschner wire as guide pin 7 perpendicular to the mode of femoral shaft near-end 42 side surface, and after range estimation intends correcting the inclination angle number of degrees, to insert the Kirschner wire of another root as guide pin 7 perpendicular to the mode of femoral shaft far-end 41 side surface, the angle now between two Kirschner wires is the number of degrees intending correcting top rake.
2nd step, as shown in Figure 3, adopts osteotomy device to dismiss femur on femoral shaft osteotomy position 43 to reach the long femur of cripetura pathological changes; Then be rotated in a clockwise direction femoral shaft far-end 41, until the Kirschner wire on femoral shaft far-end 41 is parallel to the Kirschner wire on femoral shaft near-end 42, thus reach the object of correcting the anteversion of femoral neck number of degrees.
3rd step, as shown in Figure 4, adopts steel plate 5 and screw 6 again to realize being connected between femoral shaft near-end 42 with femoral shaft far-end 41, pulls out two Kirschner wires and can complete operation.
But, osteotomy length and revolve bone angle accuracy often directly impact can obtain the key factor of good prognosis.And in traditional Kirschner wire surgical procedure, because operative doctor can only go by ocular estimate the anglec of rotation (namely intending correcting the number of degrees of top rake) determining distal femur, then on femur, described two Kirschner wires of thorn are inserted, not only very high to the skill requirement of operative doctor, and very easily produce deviation, the incidence rate that the anglec of rotation is not enough and excessive, respectively up to 15% and 44%, causes being difficult to radical cure old complaint or causing femoral shaft backward dislocation.Meanwhile, when osteotomy owing to accurately not controlling osteotomy length by limiting component, easily cause the too short or long phenomenon of osteotomy, have impact on the health of patient widely.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of femur osteotomy assistor, it can improve the accuracy of osteotomy length and the femoral shaft far-end anglec of rotation effectively.
For solving the problem, the technical solution adopted in the present invention content is specific as follows:
A kind of femur osteotomy assistor, comprises the far-end auxiliary member for being arranged on surface, femoral shaft distal side, for being arranged on the near-end auxiliary member on surface, femoral shaft proximal lateral, and for the connector of relative position between fixing described far away, near-end auxiliary member; Described far-end auxiliary member is provided with the far-end guide pin sleeve pipe perpendicular to surface, femoral shaft distal side, and described near-end auxiliary member is provided with the near-end guide pin sleeve pipe perpendicular to surface, femoral shaft proximal lateral, and the angle between described far away, near-end guide pin sleeve pipe is 10 ~ 35 °; And when using, femoral shaft osteotomy position is positioned among the gap digit between described far away, near-end auxiliary member.
As a further improvement on the present invention, described far-end auxiliary member is also provided with the far-end navigation template for surface, femoral shaft distal side described in clamping; Described far-end guide pin sleeve pipe is vertically arranged on described far-end navigation template; Described near-end auxiliary member is also provided with the near-end navigation template for surface, femoral shaft proximal lateral described in clamping, and described near-end guide pin sleeve pipe is vertically arranged on described near-end navigation template; Described connector is fixedly connected with described far away, near-end navigation template.
Preferably, described far-end navigation template comprises far-end flat part and lays respectively at the left curved portions of far-end and the right curved portions of far-end at two ends, described far-end flat part left and right, and described far-end guide pin sleeve pipe is vertically arranged on described far-end flat part.
More preferably, the cross section of described far-end navigation template is bad arc structure.
Preferably, described near-end navigation template comprises near-end flat part and lays respectively at the left curved portions of near-end and the right curved portions of near-end at two ends, described near-end flat part left and right, and described near-end guide pin sleeve pipe is vertically arranged on described near-end flat part.
More preferably, the cross section of described near-end navigation template is bad arc structure.
Further preferably, the gap digit length between described far away, near-end navigation template is 1 ~ 6cm, more preferably 1 ~ 2cm.
Further preferably, the angle between described far away, near-end guide pin sleeve pipe is 15 ~ 20 ° or 20 ~ 30 °.
Further preferably, the quantity of described far-end guide pin sleeve pipe and near-end guide pin sleeve pipe is respectively two.
Further preferably, described far-end auxiliary member and/or near-end auxiliary member can rotate around described connector; Preferably, described far-end navigation template and near-end navigation template are made by elastomeric material.
Compared to existing technology, beneficial effect of the present invention is:
Femur osteotomy assistor of the present invention is provided with far, with auxiliary guide pin correspondence, near-end guide pin sleeve pipe is vertically inserted into that femoral shaft is far away, on the side surface of near-end, and the angle between described far away, near-end guide pin sleeve pipe is set to 10-35 ° mate the common number of degrees intending rectification top rake of human body.This angle can be set to arbitrary angle in 10-35 °, such as, and 10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30 degree.Be matched with modal rectification situation, 10,15,20,25,30 degree is the angle facilities that utilization rate is the highest.
And described far-end auxiliary member and/or near-end auxiliary member can rotate around described connector, the angle between far away, near-end guide pin sleeve pipe can be regulated thus.Like this, even if the number of degrees intending between different patient correcting differ greatly, also improve the adaptability of assistor by adjustment auxiliary member, thus improve the utilization ratio of assistor.
Meanwhile, described far-end navigation template and near-end navigation template are made by elastomeric material, and described assistor will have better laminating degree and the wider suitability on the femur being mounted to sufferer time thus.
The femur osteotomy assistor of the corner dimension that the number of degrees only need correcting top rake according to the plan of sufferer during operation are selected between corresponding far away, near-end guide pin sleeve pipe can be DDH infant enforcement femur bone-culting operation easily, coordinate two guide pins in femoral shaft, determine the traditional means of intending correcting the anteversion of femoral neck number of degrees relative to adopting visual method, greatly increase accuracy, make the anteversion of femoral neck after rotation femoral shaft far-end and the error between target top rake be only 3 ~ 5 °; And in use, because femoral shaft osteotomy position is between described far away, near-end auxiliary member, so during osteotomy osteotomy device can be subject to far, the position-limiting action of near-end auxiliary member, relative to the operation method of traditional direct osteotomy on femoral shaft osteotomy position, greatly can improve the accuracy of femoral shortening, effectively guarantee the formedness of surgical effect.
Above-mentioned explanation is only the general introduction of invention technical scheme, in order to technological means of the present invention can be better understood, and can be implemented according to the content of description, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation that femoral head and acetabular bone lose normal alignment;
Fig. 2 is step one schematic diagram of traditional Kirschner wire operation method;
Fig. 3 is the step 2 schematic diagram of traditional Kirschner wire operation method;
Fig. 4 is the step 3 schematic diagram of traditional Kirschner wire operation method;
Fig. 5 is the front view of femur osteotomy assistor of the present invention;
Fig. 6 is the rearview of femur osteotomy assistor of the present invention;
Fig. 7 is the top view of femur osteotomy assistor of the present invention;
Fig. 8 is the mounting structure schematic diagram of femur osteotomy assistor of the present invention in femoral shaft.
In figure: 1, far-end auxiliary member; 11, far-end guide pin sleeve pipe; 12, far-end navigation template; 121, the left curved portions of far-end; 122, far-end flat part; 123, the right curved portions of far-end; 2, near-end auxiliary member; 21, near-end guide pin sleeve pipe; 22, near-end navigation template; 221, the left curved portions of near-end; 222, near-end flat part; 223, the right curved portions of near-end; 3, connector; 4, femoral shaft; 41, femoral shaft far-end; 42, femoral shaft near-end; 43, femoral shaft osteotomy position; 5, steel plate; 6, screw; 7, guide pin; 8, acetabular bone; A, angle between far-end guide pin sleeve pipe and near-end guide pin sleeve pipe; And the clockwise direction of arrow is for revolving bone direction in Fig. 3.
Detailed description of the invention
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the specific embodiment of the present invention, structure, feature and effect thereof, be described in detail as follows:
Is femur osteotomy assistor of the present invention as shown in Fig. 5 to Fig. 8, it comprises the far-end auxiliary member 1 for being arranged on femoral shaft far-end 41 side surface, for being arranged on the near-end auxiliary member 2 on femoral shaft near-end 42 side surface, and for fixing the connector 3 of relative position between described far-end auxiliary member 1 and near-end auxiliary member 2; Described far-end auxiliary member 1 is provided with the far-end guide pin sleeve pipe 11 perpendicular to femoral shaft far-end 41 side surface, described near-end auxiliary member 2 is provided with the near-end guide pin sleeve pipe 21 perpendicular to femoral shaft near-end 42 side surface, and the included angle A between described far-end guide pin sleeve pipe 11 and near-end guide pin sleeve pipe 21 is 10 ~ 35 °; And when using, femoral shaft osteotomy position 43 is positioned among the gap digit between described far-end auxiliary member 1 and near-end auxiliary member 2.
Femur osteotomy assistor of the present invention is adopted to be that DDH patient implements the step of bone-culting operation as follows:
1st step, the number of degrees correcting top rake according to the plan of patient select the femur osteotomy assistor of the present invention of the angle number of degrees between corresponding far away, near-end guide pin sleeve pipe; And human body intends the number of degrees of rectification top rake generally between 10 ~ 35 °, but add up through case, the plan of major part patient is had to correct the number of degrees of top rake between 15 ~ 20 ° or 20 ~ 30 °, wherein 20 ° is the number of degrees occurred frequently, therefore, the included angle A between the far-end guide pin sleeve pipe 11 of femur osteotomy assistor of the present invention and near-end guide pin sleeve pipe 21 is preferably 15 ~ 20 ° or 20 ~ 30 °.
2nd step, the far-end auxiliary member 1 of femur osteotomy assistor of the present invention and near-end auxiliary member 2 are arranged on the side surface of femoral shaft far-end 41 and near-end 42 respectively, and adjust the position of this femur osteotomy assistor, make among the gap digit of femoral shaft osteotomy position 43 between described far-end auxiliary member 1 and near-end auxiliary member 2;
3rd step, guide pin is inserted respectively in far-end guide pin sleeve pipe 11 and near-end guide pin sleeve pipe 21, far-end auxiliary member 1 and near-end auxiliary member 2 auxiliary under, the guide pin in far-end guide pin sleeve pipe 11 and near-end guide pin sleeve pipe 21 respectively vertically corresponding thorn of inserting on femoral shaft far-end 41 side surface and near-end 42 side surface;
4th step, adopts osteotomy device while severing connector 3, to dismiss femur on femoral shaft osteotomy position 43 to reach the long femur of cripetura pathological changes; Then synchronous rotary far-end auxiliary member 1 and femoral shaft far-end 41 along clockwise direction, until guide pin femoral shaft far-end 41 being positioned at far-end guide pin sleeve pipe 11 is parallel to guide pin femoral shaft near-end 42 being positioned at near-end guide pin sleeve pipe 21, thus reach the object of correcting the anteversion of femoral neck number of degrees.
5th step, steel plate and screw is adopted again to realize being connected between femoral shaft near-end 42 with femoral shaft far-end 41, after pull out two guide pins, finally again far-end auxiliary member 1 and near-end auxiliary member 2 are disassembled can complete operation from femoral shaft far-ends 41 and near-end 42 respectively.
Femur osteotomy assistor of the present invention is provided with far, with auxiliary guide pin correspondence, near-end guide pin sleeve pipe is vertically inserted into that femoral shaft is far away, on the side surface of near-end, and the angle between described far away, near-end guide pin sleeve pipe is set to 10-35 ° mate the common number of degrees intending rectification top rake of human body.This angle can be set to arbitrary angle in 10-35 °, such as, and 10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30 degree.Be matched with modal rectification situation, 10,15,20,25,30 degree is the angle facilities that utilization rate is the highest.
And described far-end auxiliary member and/or near-end auxiliary member can rotate around described connector, the angle between far away, near-end guide pin sleeve pipe can be regulated thus.Like this, even if the number of degrees intending between different patient correcting differ greatly, also improve the adaptability of assistor by adjustment auxiliary member, thus improve the utilization ratio of assistor.
The femur osteotomy assistor of the corner dimension that the number of degrees only need correcting top rake according to the plan of sufferer during operation are selected between corresponding far away, near-end guide pin sleeve pipe can be DDH infant enforcement femur bone-culting operation easily, coordinate two guide pins in femoral shaft, determine the traditional means of intending correcting the anteversion of femoral neck number of degrees relative to adopting visual method, greatly increase accuracy, make the anteversion of femoral neck after rotation femoral shaft far-end and the error between target top rake be only 3 ~ 5 °; And in use, because femoral shaft osteotomy position is between described far away, near-end auxiliary member, so during osteotomy osteotomy device can be subject to far, the position-limiting action of near-end auxiliary member, relative to the operation method of traditional direct osteotomy on femoral shaft osteotomy position, greatly can improve the accuracy of femoral shortening, effectively guarantee the formedness of surgical effect.
In order to be removably mounted on the side surface of femoral shaft far-end 41 and near-end 42 by femur osteotomy assistor of the present invention, described far-end auxiliary member 1 is also provided with the far-end navigation template 12 for femoral shaft far-end 41 side surface described in clamping; Described far-end guide pin sleeve pipe 11 is vertically arranged on described far-end navigation template 12; Described near-end auxiliary member 2 is also provided with the near-end navigation template 22 for femoral shaft near-end 42 side surface described in clamping, and described near-end guide pin sleeve pipe 21 is vertically arranged on described near-end navigation template 22; Described connector 3 is fixedly connected with described far-end navigation template 12 and near-end navigation template 22.
In order to realize the clamping of far-end auxiliary member 1 and femoral shaft far-end 41 side surface, as the further improvement of far-end navigation template 12, described far-end navigation template 12 comprises far-end flat part 122 and lays respectively at the left curved portions of far-end 121 and the right curved portions 123 of far-end at described far-end flat part about 122 two ends, and described far-end guide pin sleeve pipe 11 is vertically arranged on described far-end flat part 122.And on femoral shaft far-end 41, conveniently installing or removing far-end auxiliary member 1, the cross section of the present embodiment more preferably described far-end navigation template 12 is bad arc structure.
In order to realize the clamping of near-end auxiliary member 2 and femoral shaft near-end 42 side surface, as the further improvement of near-end navigation template 22, described near-end navigation template 22 comprises near-end flat part 222 and lays respectively at the left curved portions of near-end 221 and the right curved portions 223 of near-end at described near-end flat part about 222 two ends, and described near-end guide pin sleeve pipe 21 is vertically arranged on described near-end flat part 222.And on femoral shaft near-end 42, conveniently installing or removing near-end auxiliary member 2, the cross section of the present embodiment more preferably described near-end navigation template 22 is bad arc structure.
Simultaneously, as the preferred implementation of the present embodiment, described far-end navigation template 12 and near-end navigation template 22 are made by elastomeric material, and described assistor will have better laminating degree and the wider suitability on the femur being mounted to sufferer time thus.
In order to do better spacing to the range of activity of osteotomy device, as further improvement of this embodiment, the gap digit length between described far away, near-end navigation template is 1 ~ 6cm.And in general, because femoral shaft osteotomy position 43 is between femoral shaft cartilage surface upper limb to acetabular roof, its length is generally l ~ 2cm, in order to improve osteotomy precision further, the gap digit length of the present embodiment more preferably between described far-end navigation template 12 and near-end navigation template 22 between 1 ~ 2cm, thus can make the mean error of postoperative femoral shortening length and target cripetura length control between 0.2 ~ 0.4cm.
As further improvement of this embodiment, the quantity of described far-end guide pin sleeve pipe 11 and near-end guide pin sleeve pipe 21 is respectively two, and described two far-end guide pin sleeve pipes 11 are parallel to each other, described two near-end guide pin sleeve pipes 21 are parallel to each other, like this, be respectively for the moment relative to far-end guide pin sleeve pipe 11 and near-end guide pin sleeve pipe 21 quantity, can in the process rotating femoral shaft far-end 41, observe far-end guide pin sleeve pipe 11 and near-end guide pin sleeve pipe 21 variable angle between the two to determine whether the rectification of anteversion of femoral neck completes by convenient operative doctor.
Above-mentioned embodiment is only the preferred embodiment of the present invention; can not limit the scope of protection of the invention with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present invention all belong to the present invention's scope required for protection.
Claims (10)
1. a femur osteotomy assistor, it is characterized in that: comprise the far-end auxiliary member for being arranged on surface, femoral shaft distal side, for being arranged on the near-end auxiliary member on surface, femoral shaft proximal lateral, and for the connector of relative position between fixing described far away, near-end auxiliary member; Described far-end auxiliary member is provided with the far-end guide pin sleeve pipe perpendicular to surface, femoral shaft distal side, and described near-end auxiliary member is provided with the near-end guide pin sleeve pipe perpendicular to surface, femoral shaft proximal lateral, and the angle between described far away, near-end guide pin sleeve pipe is 10 ~ 35 °; And when using, femoral shaft osteotomy position is positioned among the gap digit between described far away, near-end auxiliary member.
2. femur osteotomy assistor as claimed in claim 1, is characterized in that: described far-end auxiliary member is also provided with the far-end navigation template for surface, femoral shaft distal side described in clamping; Described far-end guide pin sleeve pipe is vertically arranged on described far-end navigation template; Described near-end auxiliary member is also provided with the near-end navigation template for surface, femoral shaft proximal lateral described in clamping, and described near-end guide pin sleeve pipe is vertically arranged on described near-end navigation template; Described connector is fixedly connected with described far away, near-end navigation template.
3. femur osteotomy assistor as claimed in claim 2, it is characterized in that: described far-end navigation template comprises far-end flat part and lays respectively at the left curved portions of far-end and the right curved portions of far-end at two ends, described far-end flat part left and right, and described far-end guide pin sleeve pipe is vertically arranged on described far-end flat part.
4. femur osteotomy assistor as claimed in claim 3, is characterized in that: the cross section of described far-end navigation template is bad arc structure.
5. femur osteotomy assistor as claimed in claim 2, it is characterized in that: described near-end navigation template comprises near-end flat part and lays respectively at the left curved portions of near-end and the right curved portions of near-end at two ends, described near-end flat part left and right, and described near-end guide pin sleeve pipe is vertically arranged on described near-end flat part.
6. femur osteotomy assistor as claimed in claim 5, is characterized in that: the cross section of described near-end navigation template is bad arc structure.
7. femur osteotomy assistor as claimed in claim 2, is characterized in that: the gap digit length between described far away, near-end navigation template is 1 ~ 6cm, preferably 1 ~ 2cm.
8. as the femur osteotomy assistor of claim 1-7 as described in any one, it is characterized in that: the angle between described far away, near-end guide pin sleeve pipe is 15 ~ 20 ° or 20 ~ 30 °.
9., as the femur osteotomy assistor of claim 1-7 as described in any one, it is characterized in that: the quantity of described far-end guide pin sleeve pipe and near-end guide pin sleeve pipe is respectively two.
10., as the femur osteotomy assistor of claim 2-7 as described in any one, it is characterized in that: described far-end auxiliary member and/or near-end auxiliary member can rotate around described connector; Preferably, described far-end navigation template and near-end navigation template are made by elastomeric material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510263130.9A CN104840240B (en) | 2015-05-21 | 2015-05-21 | A kind of femur osteotomy assistor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510263130.9A CN104840240B (en) | 2015-05-21 | 2015-05-21 | A kind of femur osteotomy assistor |
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| CN104840240A true CN104840240A (en) | 2015-08-19 |
| CN104840240B CN104840240B (en) | 2017-07-14 |
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| CN105434009A (en) * | 2015-11-26 | 2016-03-30 | 南京医科大学附属南京儿童医院 | Navigation template for thighbone osteotomy, application method and fabrication method |
| CN106388899A (en) * | 2016-10-16 | 2017-02-15 | 北京工业大学 | Distal femur tumor accurate resection operation auxiliary instrument system manufactured by carrying out 3D printing |
| CN107041772A (en) * | 2017-03-16 | 2017-08-15 | 李文超 | Osteotomy resets template tool and tool box |
| CN111067587A (en) * | 2019-12-20 | 2020-04-28 | 哈尔滨医科大学 | Children DDH proximal femur osteotomy guide plate and use method thereof |
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| US4938762A (en) * | 1987-12-16 | 1990-07-03 | Protek Ag | Reference system for implantation of condylar total knee prostheses |
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| CN105434009A (en) * | 2015-11-26 | 2016-03-30 | 南京医科大学附属南京儿童医院 | Navigation template for thighbone osteotomy, application method and fabrication method |
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| CN106388899A (en) * | 2016-10-16 | 2017-02-15 | 北京工业大学 | Distal femur tumor accurate resection operation auxiliary instrument system manufactured by carrying out 3D printing |
| CN106388899B (en) * | 2016-10-16 | 2019-01-04 | 北京工业大学 | The accurate resection operation auxiliary instrument system of distal femur tumour of a set of 3D printing manufacture |
| CN107041772A (en) * | 2017-03-16 | 2017-08-15 | 李文超 | Osteotomy resets template tool and tool box |
| CN111067587A (en) * | 2019-12-20 | 2020-04-28 | 哈尔滨医科大学 | Children DDH proximal femur osteotomy guide plate and use method thereof |
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| CN104840240B (en) | 2017-07-14 |
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