CN205286614U - Bone remains type knee joint prosthesis - Google Patents
Bone remains type knee joint prosthesis Download PDFInfo
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- CN205286614U CN205286614U CN201520821360.8U CN201520821360U CN205286614U CN 205286614 U CN205286614 U CN 205286614U CN 201520821360 U CN201520821360 U CN 201520821360U CN 205286614 U CN205286614 U CN 205286614U
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Abstract
The utility model discloses a bone remains type knee joint prosthesis, its structural feature is: two sides set up inboard surface of bone and the distal end outside cut of distal end and cut the surface of bone about inboard knee joint prosthesis, and the distal end is inboard to be cut a surface of bone and lie in the distal end outside to cut the surface of bone inboard, go up the inclined plane and lie in inboard surface of bone and the distal end outside cut of distal end and cut the surface of bone upper end, and the lower surface of bone of sectioning of front wing lies in the inclined plane upper end, and lower inclined plane lies in section surface of bone lower extreme outside inboard section surface of bone of distal end and the distal end, the lower extreme on inclined plane under thighbone postartis section surface of bone lies in, the surface of bone is cut to the distal end inboard and the distal end outside section surface of bone thickness is asymmetric, and the inboard section surface of bone of distal end is less than the distal end outside and cuts the surface of bone. The beneficial effects of the utility model are that: the utility model discloses it is asymmetric inside and outside a distal femoral and postartis section surface of bone is, consequently can remain more bone volumes. On the sagittal face, increase cross -section quantity to remain more bone volumes. Thereby improve knee joint surgery effect, in the extension false body life -span, rebuild the operation for knee joint from now on and provide more leeway.
Description
Technical field
This utility model belongs to artificial joint replacement device, is specially bone conservative knee-joint prosthesis.
Background technology
Knee joint is that human body is maximum, it is complicated to dissect, motor function is required high joint. TKA is a kind of prosthetic replacement's surgical operation, refer to that excision body cannot the articular surface of self-healing, the joint damaged is substituted with artificial joint component, orthotic limbs muscle power line, eliminate the gonalgia, maintain stability of joint, recover a kind of Therapeutic Method of knee joint function. Total knee replacement is applied a little later than hip replacement, but also has more than 20 year history, especially recent years, and the development of knee replacements quickly, solves some in the past very thorny technical barriers. Knee joint osseous arthritis and rheumatoid arthritis are the modal arthritis of knee joint, in arthritis late period, severe joint deformity and moving obstacle occur, are now accomplished by carrying out holographic property art treatment. Holographic property art can not only obvious mitigation symptoms, moreover it is possible to correction deformity and improve function of joint, and in European and American developed countries, prosthetic replacement's operation has been one of modal operation. The development of China's knee replacements in recent years is also very good rapidly.
Knee replacements generally has four parts: femoral component, tibia support, tibial insert and patellar component. Successively the knee joint surface lesion of femur, tibia and patella is excised during operation, install artificial knee joint parts.
Current femoral component, outside is full burnishing surface, and simulates the anatomical structure of human body knee joint. Inner side is generally 5 faces. During operation, with location instrument and saw blade, femur is cut into the shape in 5 faces, adopts medial and lateral symmetry osteotomy, then femoral component is squeezed into distal femur. All of 5 cross sections are all upwards flat in interior outside, this is because 5 faces inside femoral component are all upwards flat in interior outside.The design of this femoral component facilitates production, but but adds osteotomy amount. The bone reserved reference index that to be always up in knee surgery important, affects the stability of joint after knee joint, mobility and life-span. Meanwhile, more bone amputation amount also brings difficulty for knee joint revision procedure from now on.
At present, when distal femur osteotomy, the symmetrical osteotomy in outside in adopting, the result caused is that medial femoral condyle osteotomy is more than lateral femur condyle osteotomy. Would generally many sections of 2mm. The osteotomy amount of this part in fact can retain. In existing design, from sagittal plane, there are 5 cross sections the inner side of femoral component. In the osteotomy on upper and lower two inclined-planes, also there is too much bone amount cut.
When femoral-posterior condyles osteotomy, the symmetrical osteotomy in outside in currently also adopting. In the femoral-posterior condyles osteotomy surface of different knee-joint prosthesis, outside is in one plane, and the result so caused will be that in femur, postartis osteotomy amount, generally also can many sections of 2-3mm more than outer postartis osteotomy amount.
Utility model content
For above-mentioned problems of the prior art, the purpose of this utility model is in that to provide bone conservative knee-joint prosthesis, and the osteotomy surface of distal femur is made inside and outside differing heights, retains the bone amount of patient to greatest extent, solves the problem in background technology.
This utility model realizes by the following technical solutions: a kind of bone conservative knee-joint prosthesis, i.e. knee joint femoral prosthesis, and it is divided into inner side knee-joint prosthesis part and outside knee-joint prosthesis part; Inner side knee-joint prosthesis part includes osteotomy surface under front wing, ramp, osteotomy of distal face, lower inclined plane and femoral-posterior condyles osteotomy surface, outside knee-joint prosthesis part is full burnishing surface, ramp is divided into inner side ramp and outside ramp, osteotomy of distal face is divided into distal medial osteotomy surface and distal exterior osteotomy surface, and lower inclined plane is divided into inner side lower inclined plane and outside lower inclined plane; Femoral-posterior condyles osteotomy surface is divided into medial femoral postartis osteotomy surface and lateral femur postartis osteotomy surface; About the knee-joint prosthesis of described inner side, two sides arrange distal medial osteotomy surface and distal exterior osteotomy surface, inside the osteotomy surface of distal medial osteotomy surface remotely located outside, ramp remotely located inner side osteotomy surface and distal exterior osteotomy surface upper end, under front wing, osteotomy surface is positioned at ramp upper end, lower inclined plane remotely located inner side osteotomy surface and distal exterior osteotomy surface lower end, femoral-posterior condyles osteotomy surface is positioned at the lower end of lower inclined plane; It is characterized in that: described distal medial osteotomy surface and distal exterior osteotomy surface thickness are asymmetric, and distal medial osteotomy surface is lower than distal exterior osteotomy surface.
In this utility model, described distal medial osteotomy surface thickness is lower than the 1-4mm of distal exterior osteotomy surface.
Such scheme is further improved by this utility model, size according to patient's femur, when patient's femur is less, for retaining more bone amount, described ramp or lower inclined plane are resolved into two inclined-planes, it is the first ramp and the second ramp, or is the first lower inclined plane and the second lower inclined plane, inside femoral component, have 6 cross sections; When patient's femur is bigger, for retaining more bone amount, described ramp and lower inclined plane are resolved into two inclined-planes, respectively the first ramp, the second ramp, the first lower inclined plane and the second lower inclined plane simultaneously; Altogether having 7 cross sections inside femoral component, the bone amount of patient can maximize the retention.
In this utility model, the angle between described first ramp and the second ramp is 120 ��-180 ��.
In this utility model, the angle between described first lower inclined plane and the second lower inclined plane is 120 ��-180 ��.
Such scheme is further improved by this utility model, when femoral-posterior condyles osteotomy, in the femoral-posterior condyles osteotomy surface of different knee-joint prosthesis, outside is in one plane, the result so caused will be in femur postartis osteotomy amount more than outer postartis osteotomy amount, generally also can many sections of 2-3mm, in order to avoid this problem occurs, described in the utility model when femoral-posterior condyles osteotomy adopt in outside asymmetric osteotomy, the osteotomy surface of femoral-posterior condyles is made inside and outside differing heights, namely described medial femoral postartis osteotomy surface is lower than lateral femur postartis osteotomy surface, the bone amount of medial femoral postartis osteotomy surface just obtains more reservation.
In this utility model, described medial femoral postartis osteotomy surface thickness is lower than the 1-4mm of lateral femur postartis osteotomy surface.
Common, bone conservative knee-joint prosthesis is divided into posterior stabilized bone conservative knee-joint prosthesis (PS) and posterior cruciate ligament conservative bone conservative knee-joint prosthesis (CR), namely described posterior stabilized bone conservative knee-joint prosthesis is be provided with cam gear between distal medial osteotomy surface and distal exterior osteotomy surface, cam gear effect be provide when posterior cruciate ligament is cut kneed after roll function; Additionally intercondylar fossa needs osteotomy so that the column of posterior stabilized pad can work with cam function, rolls effect after reaching.
In this utility model, by the realization of such scheme, posterior stabilized bone conservative knee-joint prosthesis (PS) is made to be divided into three kinds, respectively seven section type (ramp 2, lower inclined plane 2) and two six section types (ramp 2 and lower inclined plane 1 or ramp 1, lower inclined plane 2); Posterior cruciate ligament conservative bone conservative knee-joint prosthesis (CR) is made to be also classified into three kinds, respectively seven section type (ramp 2, lower inclined plane 2) and two six section types (ramp 2 and lower inclined plane 1 or ramps 1, lower inclined plane 2), it is clearly distinguishable from five common section type bone conservative knee-joint prosthesis, retains bone amount to greatest extent.
The beneficial effects of the utility model are: this utility model distal femur and postartis osteotomy surface are inside and outside asymmetric, therefore can retain more bone amount. On sagittal plane, increase number of cross sections, to retain more bone amount. Thus improving knee surgery effect, extending the prosthese life-span, providing more leeway for knee joint revision procedure from now on.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment 1.
In embodiment 1 figure, 1, distal medial osteotomy surface, 2, distal exterior osteotomy surface, 3, osteotomy surface under front wing, 4, inner side ramp, 5, outside ramp, 6, inner side lower inclined plane, 7, outside lower inclined plane, 8, medial femoral postartis osteotomy surface, 9, lateral femur postartis osteotomy surface 10, knee-joint prosthesis burnishing surface.
Fig. 2 is the structural representation of this utility model embodiment 2.
In embodiment 2 figure, 1, distal medial osteotomy surface, 2, distal exterior osteotomy surface, 3, osteotomy surface, ramp inside 11, first under front wing, 12, ramp outside first, 13, the second ramp, 6, inner side lower inclined plane, 7, outside lower inclined plane, 8, medial femoral postartis osteotomy surface, 9, lateral femur postartis osteotomy surface 10, knee-joint prosthesis burnishing surface.
Fig. 3 is the structural representation of this utility model embodiment 3.
In embodiment 3 figure, 1, distal medial osteotomy surface, 2, distal exterior osteotomy surface, 3, osteotomy surface under front wing, 4, inner side ramp, 5, outside ramp, 14, lower inclined plane inside first, lower inclined plane outside 15, first, the 16, second lower inclined plane, 8, medial femoral postartis osteotomy surface, 9, lateral femur postartis osteotomy surface 10, knee-joint prosthesis burnishing surface.
Fig. 4 is the structural representation of this utility model embodiment 4.
Fig. 5 is the structural front view of this utility model embodiment 4.
In embodiment 4 figure, 1, distal medial osteotomy surface, 2, distal exterior osteotomy surface, 3, osteotomy surface under front wing, 11, ramp inside first, 12, ramp outside first, the 13, second ramp, lower inclined plane inside 14, first, 15, lower inclined plane outside first, 16, the second lower inclined plane, 8, medial femoral postartis osteotomy surface, 9, lateral femur postartis osteotomy surface 10, knee-joint prosthesis burnishing surface.
Fig. 6 is the structural representation of posterior cruciate ligament conservative bone one seven section type of conservative knee-joint prosthesis.
In the drawings, 1, distal medial osteotomy surface, 2, distal exterior osteotomy surface, 3, osteotomy surface under front wing, 11, ramp inside first, 12, ramp outside first, the 13, second ramp, lower inclined plane inside 14, first, 15, lower inclined plane outside first, 16, the second lower inclined plane, 8, medial femoral postartis osteotomy surface, 9, lateral femur postartis osteotomy surface 10, knee-joint prosthesis burnishing surface.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, this utility model is expanded on further.
Embodiment 1: with " posterior stabilized bone conservative knee-joint prosthesis " for diagram embodiment.
As it is shown in figure 1, a kind of bone conservative knee-joint prosthesis, i.e. knee joint femoral prosthesis, it is divided into inner side knee-joint prosthesis part and outside knee-joint prosthesis part; Inner side knee-joint prosthesis part includes osteotomy 3 under front wing, ramp (4 and 5), osteotomy of distal face (1 and 2), lower inclined plane (6 and 7) and femoral-posterior condyles osteotomy surface (8 and 9), outside knee-joint prosthesis part is full burnishing surface 10, ramp is divided into inner side ramp 4 and outside ramp 5, osteotomy of distal face is divided into distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, and lower inclined plane is divided into inner side lower inclined plane 6 and outside lower inclined plane 7; Femoral-posterior condyles osteotomy surface is divided into medial femoral postartis osteotomy surface 8 and lateral femur postartis osteotomy surface 9; About the knee-joint prosthesis of described inner side, two sides arrange distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, inside distal medial osteotomy surface 1 remotely located outside osteotomy surface 2, ramp remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 upper end, under front wing, osteotomy surface 3 is positioned at ramp upper end, lower inclined plane remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 lower end, femoral-posterior condyles osteotomy surface (8 and 9) is positioned at the lower end of lower inclined plane; It is characterized in that: described distal medial osteotomy surface 1 and distal exterior osteotomy surface 2 thickness are asymmetric, distal medial osteotomy surface 1 is lower than distal exterior osteotomy surface 2, and described distal medial osteotomy surface 1 thickness is lower than the 1-4mm of distal exterior osteotomy surface 2.
Embodiment 2: with " posterior stabilized bone conservative knee-joint prosthesis " for diagram embodiment.
As shown in Figure 2, such scheme is further improved by this utility model, size according to patient's femur, when patient's femur is less, for retaining more bone amount, a kind of bone conservative knee-joint prosthesis, i.e. knee joint femoral prosthesis, it is divided into inner side knee-joint prosthesis part and outside knee-joint prosthesis part, inner side knee-joint prosthesis part includes osteotomy surface 3 under front wing, ramp (11 and 12, 13), osteotomy of distal face (1 and 2), lower inclined plane (6, 7) and femoral-posterior condyles osteotomy surface (8 and 9), outside knee-joint prosthesis part is full burnishing surface 13, ramp is divided into the first ramp (11, 12) and the second ramp 13, first ramp (11, 12) ramp 12 outside ramp 11 and first it is divided into inside first, osteotomy of distal face is divided into distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, lower inclined plane is divided into inner side lower inclined plane 6 and outside lower inclined plane 7,Femoral-posterior condyles osteotomy surface (8 and 9) is divided into medial femoral postartis osteotomy surface 8 and lateral femur postartis osteotomy surface 9; About the knee-joint prosthesis of described inner side, two sides arrange distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, inside distal medial osteotomy surface 1 remotely located outside osteotomy surface 2, first ramp (11,12) remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 upper end, second ramp 13 is positioned at the first ramp (11,12) upper end, under front wing, osteotomy surface 3 is positioned at the second ramp 13 upper end, lower inclined plane remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 lower end, femoral-posterior condyles osteotomy surface (8 and 9) is positioned at the lower end of lower inclined plane; It is characterized in that: described distal medial osteotomy surface 1 and distal exterior osteotomy surface 2 thickness are asymmetric, distal medial osteotomy surface 1 is lower than distal exterior osteotomy surface 2, and described distal medial osteotomy surface 1 thickness is lower than the 1-4mm of distal exterior osteotomy surface 2.
Embodiment 3: with " posterior stabilized bone conservative knee-joint prosthesis " for diagram embodiment.
As shown in Figure 3, such scheme is further improved by this utility model, size according to patient's femur, when patient's femur is less, for retaining more bone amount, a kind of bone conservative knee-joint prosthesis, i.e. knee joint femoral prosthesis, it is divided into inner side knee-joint prosthesis part and outside knee-joint prosthesis part, inner side knee-joint prosthesis part includes osteotomy surface 3 under front wing, ramp (4 and 5), osteotomy of distal face (1 and 2), lower inclined plane (14.15.16) and femoral-posterior condyles osteotomy surface (8 and 9), outside knee-joint prosthesis part is full burnishing surface 13, ramp is divided into inner side ramp 4 and outside ramp 5, osteotomy of distal face is divided into distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, lower inclined plane is divided into the first lower inclined plane (14.15) and the second lower inclined plane 16, first lower inclined plane (14.15) is divided into inside first lower inclined plane 15 outside lower inclined plane 14 and first, femoral-posterior condyles osteotomy surface (8 and 9) is divided into medial femoral postartis osteotomy surface 8 and lateral femur postartis osteotomy surface 9, about the knee-joint prosthesis of described inner side, two sides arrange distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, inside distal medial osteotomy surface 1 remotely located outside osteotomy surface 2, ramp remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 upper end, under front wing, osteotomy surface 3 is positioned at ramp upper end, first lower inclined plane (14 and 15) remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 lower end, second lower inclined plane 16 is positioned at the first lower inclined plane (14.15) lower end, and femoral-posterior condyles osteotomy surface (8 and 9) is positioned at the lower end of the second lower inclined plane 16, it is characterized in that: described distal medial osteotomy surface 1 and distal exterior osteotomy surface 2 thickness are asymmetric, distal medial osteotomy surface 1 is lower than distal exterior osteotomy surface 2, and described distal medial osteotomy surface 1 thickness is lower than the 1-4mm of distal exterior osteotomy surface 2.
Embodiment 4: with " posterior stabilized bone conservative knee-joint prosthesis " for diagram embodiment.
As shown in Figure 4 and Figure 5, a kind of bone conservative knee-joint prosthesis, i.e. knee joint femoral prosthesis, it is divided into inner side knee-joint prosthesis part and outside knee-joint prosthesis part, inner side knee-joint prosthesis part includes osteotomy 3 under front wing, ramp (11.12.13), osteotomy of distal face (1 and 2), lower inclined plane (14.15.16) and femoral-posterior condyles osteotomy surface (8 and 9), outside knee-joint prosthesis part is full burnishing surface 10, ramp is divided into the first ramp (11, 12) and the second ramp 13, first ramp (11, 12) ramp 12 outside ramp 11 and first it is divided into inside first, osteotomy of distal face is divided into distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, lower inclined plane is divided into the first lower inclined plane (14.15) and the second lower inclined plane 16, first lower inclined plane (14.15) is divided into inside first lower inclined plane 15 outside lower inclined plane 14 and first, femoral-posterior condyles osteotomy surface is divided into medial femoral postartis osteotomy surface 8 and lateral femur postartis osteotomy surface 9,About the knee-joint prosthesis of described inner side, two sides arrange distal medial osteotomy surface 1 and distal exterior osteotomy surface 2, inside distal medial osteotomy surface 1 remotely located outside osteotomy surface 2, first ramp (11, 12) remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 upper end, second ramp 13 is positioned at the first ramp (11, 12) upper end, under front wing, osteotomy surface 3 is positioned at the second ramp 13 upper end, first lower inclined plane (14 and 15) remotely located inner side osteotomy surface 1 and distal exterior osteotomy surface 2 lower end, second lower inclined plane 16 is positioned at the first lower inclined plane (14.15) lower end, femoral-posterior condyles osteotomy surface (8 and 9) is positioned at the lower end of the second lower inclined plane 16, described distal medial osteotomy surface 1 and distal exterior osteotomy surface 2 thickness are asymmetric, and distal medial osteotomy surface 1 is lower than distal exterior osteotomy surface 2, and described distal medial osteotomy surface 1 thickness is lower than the 1-4mm of distal exterior osteotomy surface 2.
This utility model is when distal femur osteotomy, the asymmetric osteotomy in outside in adopting, distal femur osteotomy surface should be perpendicular to the femur line of force, the osteotomy surface of distal femur is made inside and outside differing heights by this utility model, described medial femoral condyle osteotomy of distal face 1 is lower than lateral femur condyle osteotomy of distal face 2, and the bone amount of medial femoral condyle just obtains more reservation. Namely medial femoral condyle osteotomy of distal face 1 is the osteotomy amount retained lower than the difference in lateral femur condyle osteotomy of distal face 2. When femoral-posterior condyles osteotomy, this utility model adopts the asymmetric osteotomy in interior outside. The osteotomy surface of femoral-posterior condyles is made inside and outside differing heights by this utility model, and namely described interior postartis osteotomy surface 8 is lower than outer postartis osteotomy surface 9, and the bone amount of medial femoral postartis just obtains more reservation.
As shown in Figure 6, for the structural representation of this utility model posterior cruciate ligament conservative bone one seven section type of conservative knee-joint prosthesis.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described, skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description is that principle of the present utility model is described, under the premise without departing from this utility model spirit and scope, this utility model also has various changes and modifications, these changes and improvements both fall within the scope of claimed this utility model, this utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (10)
1. a bone conservative knee-joint prosthesis, i.e. knee joint femoral prosthesis, it is divided into inner side knee-joint prosthesis part and outside knee-joint prosthesis part; Inner side knee-joint prosthesis part includes osteotomy surface under front wing, ramp, osteotomy of distal face, lower inclined plane and femoral-posterior condyles osteotomy surface, outside knee-joint prosthesis part is full burnishing surface, ramp is divided into inner side ramp and outside ramp, osteotomy of distal face is divided into distal medial osteotomy surface and distal exterior osteotomy surface, and lower inclined plane is divided into inner side lower inclined plane and outside lower inclined plane; Femoral-posterior condyles osteotomy surface is divided into medial femoral postartis osteotomy surface and lateral femur postartis osteotomy surface; About the knee-joint prosthesis of described inner side, two sides arrange distal medial osteotomy surface and distal exterior osteotomy surface, inside the osteotomy surface of distal medial osteotomy surface remotely located outside, ramp remotely located inner side osteotomy surface and distal exterior osteotomy surface upper end, under front wing, osteotomy surface is positioned at ramp upper end, lower inclined plane remotely located inner side osteotomy surface and distal exterior osteotomy surface lower end, femoral-posterior condyles osteotomy surface is positioned at the lower end of lower inclined plane;It is characterized in that: described distal medial osteotomy surface and distal exterior osteotomy surface thickness are asymmetric, and distal medial osteotomy surface is lower than distal exterior osteotomy surface.
2. a kind of bone conservative knee-joint prosthesis according to claim 1, it is characterised in that: described distal medial osteotomy surface thickness is lower than the 1-4mm of distal exterior osteotomy surface.
3. a kind of bone conservative knee-joint prosthesis according to claim 2, it is characterized in that: when patient's femur is less, for retaining more bone amount, ramp or lower inclined plane are resolved into two inclined-planes, it is the first ramp and the second ramp, or be the first lower inclined plane and the second lower inclined plane, have 6 cross sections inside femoral component.
4. a kind of bone conservative knee-joint prosthesis according to claim 2, it is characterized in that: when patient's femur is bigger, for retaining more bone amount, ramp and lower inclined plane are resolved into two inclined-planes simultaneously, respectively the first ramp, the second ramp, the first lower inclined plane and the second lower inclined plane, has 7 cross sections inside femoral component.
5. a kind of bone conservative knee-joint prosthesis according to claim 3 or 4, it is characterised in that: the angle between described first ramp and the second ramp is 120 ��-180 ��.
6. a kind of bone conservative knee-joint prosthesis according to claim 3 or 4, it is characterised in that: the angle between described first lower inclined plane and the second lower inclined plane is 120 ��-180 ��.
7. a kind of bone conservative knee-joint prosthesis according to 1-4 any claim, it is characterized in that: the asymmetric osteotomy in outside in adopting when femoral-posterior condyles osteotomy, the osteotomy surface of femoral-posterior condyles is made inside and outside differing heights, and namely described medial femoral postartis osteotomy surface is lower than lateral femur postartis osteotomy surface.
8. a kind of bone conservative knee-joint prosthesis according to claim 7, it is characterised in that: described medial femoral postartis osteotomy surface thickness is lower than the 1-4mm of lateral femur postartis osteotomy surface.
9. a kind of bone conservative knee-joint prosthesis according to claim 1, it is characterized in that: bone conservative knee-joint prosthesis is divided into posterior stabilized bone conservative knee-joint prosthesis and posterior cruciate ligament conservative bone conservative knee-joint prosthesis, and namely described posterior stabilized bone conservative knee-joint prosthesis is be provided with cam gear between distal medial osteotomy surface and distal exterior osteotomy surface.
10. a kind of bone conservative knee-joint prosthesis according to claim 1, it is characterized in that: posterior stabilized bone conservative knee-joint prosthesis is divided into three kinds, respectively seven section types and two six section types, posterior cruciate ligament conservative bone conservative knee-joint prosthesis is also classified into three kinds, respectively seven section types and two six section types, one of them seven section type is ramp 2 and lower inclined plane 2, and wherein two six section type is ramp 2 and lower inclined plane 1 or ramp 1 and lower inclined plane 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821360.8U CN205286614U (en) | 2015-10-21 | 2015-10-21 | Bone remains type knee joint prosthesis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520821360.8U CN205286614U (en) | 2015-10-21 | 2015-10-21 | Bone remains type knee joint prosthesis |
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| CN205286614U true CN205286614U (en) | 2016-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213071A (en) * | 2015-10-21 | 2016-01-06 | 苏州锐进医疗科技有限公司 | A kind of bone conservative knee-joint prosthesis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213071A (en) * | 2015-10-21 | 2016-01-06 | 苏州锐进医疗科技有限公司 | A kind of bone conservative knee-joint prosthesis |
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Address after: 215000 building two, South 188, Jialing Road, one or two hi tech Zone, Jiangsu, Suzhou Patentee after: Excellent medical technology (Suzhou) Co., Ltd. Address before: Suzhou City, Jiangsu Province, Suzhou Industrial Park 215000 Xinghu Street No. 218 BioBAY building B2 room 209 Patentee before: SUZHOU RUIJIN MEDICAL TECHNOLOGY CO., LTD. |