CN104783934B - Tibial plateau assembly - Google Patents
Tibial plateau assembly Download PDFInfo
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- CN104783934B CN104783934B CN201510233996.5A CN201510233996A CN104783934B CN 104783934 B CN104783934 B CN 104783934B CN 201510233996 A CN201510233996 A CN 201510233996A CN 104783934 B CN104783934 B CN 104783934B
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- tibial plateau
- fixed plate
- supporting part
- main platform
- plateau assembly
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Abstract
The invention provides a tibial plateau assembly. The tibial plateau assembly comprises a plateau body (10) and a supporting portion (20) arranged below the plateau body (10). The tibial plateau assembly further comprises a fixing plate (31) and a fastening piece for fixing an implanted bone block. The fixing plate (31) is connected to the peripheral side wall of the plateau body (10) and stretches in the axial direction of the plateau body (10). The fastening piece is arranged on the fixing plate (31) and thee supporting portion (20) in a penetrating mode. A space for containing and fixing the implanted bone block is formed between the fixing plate (31) and the supporting portion (20). By means of the technical scheme, the problem that in the prior art, a tibial plateau assembly cannot conduct repair on the uncontained bone defect independently is solved.
Description
Technical field
The present invention relates to technical field of medical instruments, in particular to a kind of tibial plateau assembly.
Background technology
Knee joint is one of important joint of human body lower limbs, and meanwhile, gonarthrosiss are also common complaint among the elderly, multiple
Disease, one of its concrete manifestation is the abrasion of articular cartilage or regression can lead to arthralgia.
During treatment gonarthrosiss, the most frequently used is exactly the surface replacement art in knee replacements.Specifically,
The cartilage of abrasion on kneed femur and tibia and subchondral bone are reamed a thin layer, forms osteotomy surface, then by cobalt chrome molybdenum
The metal of alloy implants prosthese by way of directly fixing or the mode of cement reaction is fixed on this osteotomy surface, thus
Substitute the joint sclerotin of abrasion.In above-mentioned implantation prosthese, the part for substituting femur side seam matter is referred to as condyle of femur, for replacing
Part for tibial side sclerotin is referred to as tibial plateau, is lined with polyethylene pads between condyle of femur and tibial plateau, thus playing reduction
Friction, the effect of recovery knee joint function.
At present, for knee joint Cranial defect, it usually needs carry out artificial full knee joint transposing.In above-mentioned artificial complete knee joint
In replacement process, particularly in overhaul technology, sometimes with a certain degree of bone loss.Knee joint Cranial defect is roughly divided into bag
Capacitive and non-packet capacitive Cranial defect.Wherein, the surrounding of pardon Cranial defect still has complete cortical bone to carry out wrapping, is overhauled
When can be filled with by particulate cancellous bone bone grafting or bone cement screw.However, the cortical bone part of the surrounding of non-packet capacitive Cranial defect
Or total loss, use of clinically having to is overhauled type prosthese and is rebuild, and greater area of sclerotin so can be led to remove, with
When detrimental effect is brought to following overhauling.Therefore, how to process the non-packet capacitive Cranial defect occurring in Primary replacement art is
One of challenge faced by complete knee joint Primary replacement.
Content of the invention
Present invention is primarily targeted at providing a kind of tibial plateau assembly, to solve tibial plateau group of the prior art
Part cannot be implemented separately the problem of the reparation to non-packet capacitive Cranial defect.
To achieve these goals, the invention provides a kind of tibial plateau assembly, including main platform body be arranged on flat
Supporting part below platform main body, tibial plateau assembly also includes fixed plate and the securing member for fixing implantation bone piece, fixing
Plate is connected in the circumferential side wall of main platform body, and fixed plate extends along the axial direction of main platform body, and securing member is located in solid
In fixed board and supporting part, between fixed plate and supporting part, form the space for accommodating and fixing implantation bone piece.
Further, fixed plate is adjustably arranged along the circumferential position of main platform body.
Further, securing member is the first trip bolt, and supporting part has the screwed hole matching with the first trip bolt.
Further, fixed plate has the through hole for wearing the first trip bolt.
Further, it is connected by the second trip bolt between fixed plate and the side wall of main platform body.
Further, fixed plate has limited step towards on the inner surface of main platform body, the step surface of limited step with
The lower surface of main platform body matches.
Further, supporting part includes support column and the support bar being arranged on below support column, and screwed hole is located at support column
Circumferential side wall on.
Further, support column has accommodating chamber, the circumferential side wall of support column is had the fusion being communicated with accommodating chamber and leads to
Hole.
Further, support column is tapered, and support column along away from extending with gradually tapering up on the direction of main platform body.
Further, the outer surface of supporting part and the inner surface towards supporting part of fixed plate are respectively provided with biological painting
Layer.
Application technical scheme, is fixedly installed fixed plate in main platform body, and in fixed plate with supporting part
Wear securing member.When repairing to non-packet capacitive Cranial defect, bone piece is implanted in the space between fixed plate and supporting part, and
By securing member, this bone piece is fixed.Then, tibial plateau assembly is placed in patient's proximal tibia, thus realizing to non-packet capacitive
The reparation of Cranial defect, it is to avoid rebuild using overhauling type prosthese, the reservation to patient's sclerotin plays a positive role.
Brief description
The Figure of description constituting the part of the application is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and its illustrate for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment of the tibial plateau assembly according to the present invention；
Fig. 2 shows the structural representation of another angle of the tibial plateau assembly of Fig. 1；
Fig. 3 shows the main platform body of tibial plateau assembly of Fig. 1 and the structural representation of supporting part；
Fig. 4 shows the main platform body of Fig. 3 and the structural representation of another angle of supporting part；
Fig. 5 shows the structural representation towards main platform body side of the fixed plate of tibial plateau assembly of Fig. 1；
Fig. 6 shows the structural representation of the dorsad main platform body side of the fixed plate of Fig. 5；And
Fig. 7 shows the structural representation of another angle of the fixed plate of Fig. 5.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10th, main platform body；20th, supporting part；21st, screwed hole；22nd, support column；23rd, support bar；24th, merge through hole；31st, solid
Fixed board；311st, through hole；312nd, limited step；32nd, the first trip bolt；33rd, the second trip bolt.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As depicted in figs. 1 and 2, the tibial plateau assembly in the present embodiment includes main platform body 10 and is arranged on main platform body
The supporting part 20 of 10 lower sections.Tibial plateau assembly also includes fixed plate 31 and the securing member for fixing implantation bone piece.Wherein,
Fixed plate 31 is connected in the circumferential side wall of main platform body 10, and fixed plate 31 is along the axial direction extension of main platform body 10.Tightly
Firmware is located on fixed plate 31 and supporting part 20.Formed between fixed plate 31 and supporting part 20 for accommodating and fixing implantation bone
The space of block.
The tibial plateau assembly of application the present embodiment, is fixedly installed fixed plate 31 in main platform body 10, and in fixed plate
31 with supporting part 20 on wear securing member.When repairing to non-packet capacitive Cranial defect, fixed plate 31 and supporting part 20 it
Between space implantation bone piece, and by securing member, this bone piece is fixed.Then, tibial plateau assembly is placed in patient's tibia near
End, thus realize the reparation to non-packet capacitive Cranial defect, it is to avoid is rebuild using overhauling type prosthese, the reservation to patient's sclerotin is played
Positive effect.
It should be noted that in the present embodiment, implantation bone piece is fixed on fixed plate 31 He by the first trip bolt 32
Between supporting part 20.Above-mentioned bone piece is located in (not shown) on the first trip bolt 32.When repairing to Cranial defect,
First bone piece is placed between fixed plate 31 and supporting part 20, then the first trip bolt 32 is passed through the through hole 311 in fixed plate 31
And after bone piece, be threaded onto in the screwed hole 21 of supporting part 20, thus realize bone piece is fixedly secured.Certainly, bone piece and the
The cooperation position not limited to this of one trip bolt 32, in other embodiments, it is possible to use multiple first trip bolts 32 will
Bone piece clamps to realize the fixation to bone piece.
In the present embodiment, fixed plate 31 is adjustably arranged along the circumferential position of main platform body 10.Concrete according to patient
Defect, fixed plate 31 can be adjusted with respect to the position of supporting part 20 so that be located at fixed plate 31 and
Implantation bone piece between support part 20 is more suitable for defect, makes repairing effect more preferable.
As shown in Figures 1 to 7, in the tibial plateau assembly of the present embodiment, securing member is the first trip bolt 32, supports
Portion 20 has the screwed hole 21 matching with the first trip bolt 32.The structure of the first trip bolt 32 is simple, it is easy to accomplish, and
And first trip bolt 32 can produce pulling force to fixed plate 31 and supporting part 20, suffered from being effectively prevented tibial plateau assembly
Rotate in person's body, thus enhancing implantation prosthese in stability in the patient.In the present embodiment, the first trip bolt
32 quantity is four, it should be noted that the quantity of the first trip bolt 32 can be according to and fixed plate 31 fast to implantation bone
Position and the specific requirement of quantity be adjusted.Certainly, the form not limited to this of securing member, in the unshowned embodiment party of in figure
In formula, securing member can be the fastening structure of other forms, such as standing screw, steady pin etc..
As shown in Figure 1, Figure 2 and shown in Fig. 5 to Fig. 7, in the tibial plateau assembly of the present embodiment, fixed plate 31 has use
In the through hole 311 wearing the first trip bolt 32.A pair of screwed hole 21 1 on through hole 311 in fixed plate 31 and supporting part 20
Should.Fixed plate 31 and the first trip bolt 32 are set to Split type structure, use more flexible.Certainly, fixed plate 31 He
The structure not limited to this of the first trip bolt 32, in the unshowned embodiment of in figure, fixed plate 31 and the first trip bolt
32 can also be structure as a whole.
In the present embodiment, the material of fixed plate 31 is pure titanium material, such that it is able to make fixed plate 31 appropriateness in operation
Bending is with the skeleton of the patient that fits as much as possible.Certainly, the material not limited to this of fixed plate 31, in other embodiments, Gu
Fixed board 31 can be other materials.
As depicted in figs. 1 and 2, in the tibial plateau assembly of the present embodiment, the side wall of fixed plate 31 and main platform body 10
Between be fixedly connected by the second trip bolt 33.Have on the side wall of main platform body 10 and be correspondingly arranged with the second trip bolt 33
Multiple screw holes, fixed plate 31 is fixed on the side wall of main platform body 10 by the second trip bolt 33.Additionally, it is tight by second
Gu the screw 33 screw hole cooperation different from main platform body 10, the particular location of fixed plate 31 can be adjusted.
As shown in Figure 1, Figure 2, shown in Fig. 5 and Fig. 7, in the tibial plateau assembly of the present embodiment, fixed plate 31 is towards platform
Limited step 312 is had on the inner surface of main body 10, the step surface of limited step 312 is matched with the lower surface of main platform body 10
Close.Said structure plays the effect of positioning to main platform body 10.In the present embodiment, fixed plate 31 is with limited step 312 as side
Boundary is divided into top fixed edge and the lower tie plate wing, and top fixed edge passes through the side wall of the second trip bolt 33 and main platform body 10
It is fixedly connected, the lower tie plate wing has the through hole 311 for wearing the first trip bolt 32.When repairing to Cranial defect
When, the step surface of the limited step 312 of fixed plate 31 and the lower surface of main platform body 10 are fitted, and uses the second trip bolt
33 fixed plate 31 is fixed on the side wall of main platform body 10.
As shown in Figures 1 to 4, in the tibial plateau assembly of the present embodiment, supporting part 20 includes support column 22 and setting
Support bar 23 below support column 22, screwed hole 21 is located in the circumferential side wall of support column 22.Supporting part 20 is inserted into human body
To play the effect to tibial plateau assembly Auxiliary support in tibia pulp cavity.In the present embodiment, in support column 22, there is receiving
Chamber, and the fusion through hole 24 being communicated with accommodating chamber is had on the circumferential side wall of support column 22.Can optionally accommodate
Bone piece is merged in intracavity implantation, this fusion bone piece can by merge intact osseous tissue around through hole 24 and supporting part 20 or with
Between fixed plate 31 and supporting part 20, the bone piece of implantation merges well, it is possible to achieve farthest adapt to defective bone
The form of matter, improves the repairing quality to Cranial defect.
As shown in Figures 1 to 4, in the tibial plateau assembly of the present embodiment, support column 22 is tapered, and support column 22 is along remote
Extend with gradually tapering up on the direction of main platform body 10.Said structure can make the implantation of supporting part 20 be more prone to operate.
Certainly, the shape not limited to this of support column 22, in the unshowned embodiment of in figure, support column 22 can also be other shapes
Shape.
In the prior art, most knee joint implantation prosthese enters using between cement reaction mode and skeleton
Row is fixed.However, bone cement itself has some defects, some complication can be produced, such as bone cement chip can cause prosthese
Loosen.In actual therapeutic, for the preferable patient of young, sclerotin, also can adopt biological fixation mode, but biological fixation
Mode is for the bad patient of older, sclerotin and inapplicable.
In the present embodiment, the bottom of main platform body 10 has bone cement groove.The upper surface of main platform body 10 and tibia pad
Piece matches, and the bone cement groove of bottom is used for accommodating bone cement, and main platform body 10 passes through this bone with the osteotomy surface at tibial prosthesis
Cement is fixed.
As shown in Figures 1 to 7, in the tibial plateau assembly of the present embodiment, the outer surface of supporting part 20 and fixed plate
It is respectively provided with biological coating on 31 inner surface towards supporting part 20.This biological coating can apply for hydroxyl apatite bioceramic
Layer or pure titanium valve coating.In the present embodiment, supporting part 20 is inserted in human tibia pulp cavity, and the setting of above-mentioned biological coating can
Preferably to merge supporting part 20 with the bone marrow in pulp cavity, realize biological fixation.Additionally, fixed plate 31 is towards platform
Biological coating on the inner surface of main body 10 can also be merged well with the bone piece of implantation.It should be noted that it is raw
Thing coating is not limited to hydroxyl apatite bioceramic coating and pure titanium valve coating, in the unshowned other embodiment of in figure,
Biological coating can also be the biological coating of other forms.
Said structure can realize the compound fixed form of cement reaction and biological fixation, and comprehensive two kinds of fixation sides
The advantage of formula, all has good therapeutic effect to the patient of all ages and classes, different sclerotin.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect: the application's
Tibial plateau assembly can achieve the reparation to non-packet capacitive Cranial defect, it is to avoid is rebuild using overhauling type prosthese, to patient's sclerotin
Reservation plays a positive role.Additionally, the tibial plateau assembly of the application employs cement reaction technology, biological coating simultaneously
Technology and bone fusion technology, can stably fix aspect at the initial stage of implantation prosthese and later stage and have preferable effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of tibial plateau assembly, including main platform body (10) be arranged on the supporting part below described main platform body (10)
(20) it is characterised in that described tibial plateau assembly also includes fixed plate (31) and the securing member for fixing implantation bone piece,
Described fixed plate (31) is connected in the circumferential side wall of described main platform body (10), and described fixed plate (31) is along described platform master
The axial direction of body (10) extends, and described securing member is located on described fixed plate (31) and described supporting part (20), described solid
Form the space for accommodating and fixing described implantation bone piece between fixed board (31) and described supporting part (20).
2. tibial plateau assembly according to claim 1 is it is characterised in that described fixed plate (31) is along described main platform body
(10) circumferential position is adjustably arranged.
3. tibial plateau assembly according to claim 1 is it is characterised in that described securing member is the first trip bolt
(32), described supporting part (20) has the screwed hole (21) matching with described first trip bolt (32).
4. tibial plateau assembly according to claim 3 is it is characterised in that have for wearing in described fixed plate (31)
The through hole (311) of described first trip bolt (32).
5. tibial plateau assembly according to claim 1 is it is characterised in that described fixed plate (31) and described main platform body
(10) pass through the second trip bolt (33) between side wall to connect.
6. tibial plateau assembly according to claim 1 is it is characterised in that described fixed plate (31) is towards described platform master
Limited step (312), the step surface of described limited step (312) and described main platform body (10) are had on the inner surface of body (10)
Lower surface match.
7. tibial plateau assembly according to claim 3 is it is characterised in that described supporting part (20) includes support column (22)
With the support bar (23) being arranged on below described support column (22), described screwed hole (21) is positioned at the circumference of described support column (22)
On the wall of side.
8. tibial plateau assembly according to claim 7 is it is characterised in that described support column (22) has accommodating chamber, institute
The fusion through hole (24) being communicated with described accommodating chamber is had on the circumferential side wall stating support column (22).
9. tibial plateau assembly according to claim 8 is it is characterised in that described support column (22) is tapered, described
Dagger (22) extends along along the direction away from described main platform body (10) with gradually tapering up.
10. tibial plateau assembly according to claim 1 it is characterised in that the outer surface of described supporting part (20) and
It is respectively provided with biological coating on the inner surface towards described supporting part (20) of described fixed plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233996.5A CN104783934B (en) | 2015-05-08 | 2015-05-08 | Tibial plateau assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233996.5A CN104783934B (en) | 2015-05-08 | 2015-05-08 | Tibial plateau assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104783934A CN104783934A (en) | 2015-07-22 |
| CN104783934B true CN104783934B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510233996.5A Active CN104783934B (en) | 2015-05-08 | 2015-05-08 | Tibial plateau assembly |
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| Country | Link |
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| CN (1) | CN104783934B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111035481A (en) * | 2019-12-25 | 2020-04-21 | 北京爱康宜诚医疗器材有限公司 | Prosthetic body and have its shin bone structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1628273A1 (en) * | 1989-07-04 | 1994-11-15 | И.И. Юрченко | Endoprosthesis of knee joint |
| US5733290A (en) * | 1995-12-21 | 1998-03-31 | Johnson & Johnson Professional, Inc. | Quick-release tibial alignment handle |
| US20040006393A1 (en) * | 2002-07-03 | 2004-01-08 | Brian Burkinshaw | Implantable prosthetic knee for lateral compartment |
| US9101476B2 (en) * | 2009-05-21 | 2015-08-11 | Depuy (Ireland) | Prosthesis with surfaces having different textures and method of making the prosthesis |
| FR2960417B1 (en) * | 2010-05-25 | 2012-07-13 | Sem Sa | PROSTHETIC KNEE JOINT ASSEMBLY COMPRISING A TIBIAL EMBASE ADAPTED TO RECEIVE A RANGE OF FEMALE INSERTS OF THE UNICOMPARTIMENTAL TYPE |
| WO2013123515A1 (en) * | 2012-02-16 | 2013-08-22 | Mobius Medical LLC | Tibial baseplate assembly for knee joint prosthesis |
| CN103598934B (en) * | 2013-10-30 | 2015-12-30 | 嘉思特华剑医疗器材(天津)有限公司 | A kind of knee-joint prosthesis fill-in pad |
| CN204636619U (en) * | 2015-05-08 | 2015-09-16 | 北京爱康宜诚医疗器材股份有限公司 | Tibial plateau assembly |
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2015
- 2015-05-08 CN CN201510233996.5A patent/CN104783934B/en active Active
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| CN104783934A (en) | 2015-07-22 |
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Address after: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee after: Beijing Aikang Yicheng Medical Equipment Co., Ltd. Address before: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee before: Beijing AKEC Medical Co.,Ltd. |