CN109925101A - A kind of bion knee joint mechanical pressurization tibial plateau - Google Patents
A kind of bion knee joint mechanical pressurization tibial plateau Download PDFInfo
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- CN109925101A CN109925101A CN201910308410.5A CN201910308410A CN109925101A CN 109925101 A CN109925101 A CN 109925101A CN 201910308410 A CN201910308410 A CN 201910308410A CN 109925101 A CN109925101 A CN 109925101A
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- kidney shape
- platform support
- shape platform
- mandril
- hole
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 35
- UELITFHSCLAHKR-UHFFFAOYSA-N acibenzolar-S-methyl Chemical compound CSC(=O)C1=CC=CC2=C1SN=N2 UELITFHSCLAHKR-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 210000003734 kidney Anatomy 0.000 claims abstract description 41
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 27
- 241000397426 Centroberyx lineatus Species 0.000 claims abstract description 20
- 210000002303 tibia Anatomy 0.000 abstract description 10
- 238000001356 surgical procedure Methods 0.000 abstract description 6
- 210000000988 bone and bone Anatomy 0.000 description 10
- 239000002639 bone cement Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006757 chemical reactions by type Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000011883 total knee arthroplasty Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000010883 osseointegration Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Abstract
The invention discloses a kind of bion knee joint mechanical pressurization tibial plateaus, including kidney shape platform support, the upper surface of crook is provided with swallow-tail form convex block in kidney shape platform support, kidney shape platform support and the upper surface of the export-oriented crook relative to swallow-tail form convex block are provided with arc bump, arc bump lateral surface from top to bottom, it is provided with fixation hole and lower fixed hole, is provided with hole in the middle part of kidney shape platform support, kidney shape platform support lower surface is connected with handle；Hole and reducer pipe internal run-through are arranged；Tapped ring flat-plate is provided on the inner wall of reducer pipe middle and upper part, the outer surface of upper of mandril is provided with minor thread, and major thread (16) are arranged at lower part, and the upper surface of mandril is provided with regular hexagon groove；The regular hexagon groove of the upper surface of nut, mandril rotation are turned at the time of surgery, upper fixation hole and lower fixed hole are clamped with holding handle, guarantees that tibial plateau is not rotated with mandril, the body of rod is screwed in shin bone, until nut squeezes tibial plateau, play the role of mechanical pressurization.
Description
Technical field
The invention belongs to medical equipment technical field more particularly to a kind of bion knee joint mechanical pressurization tibial plateaus.
Background technique
Replacement knee in arthroplasty can effectively solve the knee joint illness of sufferer, mitigate the pain of patient, to a certain extent
Restore the knee joint function of patient.Knee-joint prosthesis structure includes: condyle of femur, tibial plateau, tibial plateau pad, kneecap and attached
Part.With the continuous improvement that the rapid development and people of medical device technology safely, effectively require knee-joint prosthesis, knee joint
Prosthese technology is more mature perfect, and variety classes knee-joint prosthesis occurs successively.
Currently, knee-joint prosthesis can be divided into cement reaction type and biological fixation type (non-bone according to different fixed forms
Cement mo(u)ld) two major classes.Wherein, cement reaction type knee-joint prosthesis is referred to as " goldstandard " of total knee arthroplasty (TKA),
It is widely used in clinic.Bone cement monomer polymerization expandable osmotic can reinforce cancellous bone into bone trabecula, and then expand stress conduction
Range, to improve the tolerance to doctor's Technique deviation and sclerotin.However, bone cement is a kind of inertia material for the human body
Material, can be only formed in conjunction with mechanicalness, this necessarily faces aging, fragmentation and wear particle etc. and asks with bone tissue or articular prosthesis
Topic.Clinical practice discovery bone-cement type knee-joint prosthesis will appear a series of complication, as bone cement implantation syndrome (BCIS),
Bone cement polymerization exotherm causes peri-prosthetic tissues damage, postoperative local infection, affected part feeling or dysfunction and prosthese early stage
Loosen etc., influence success rate of operation and prosthese long-time stability.
Bion knee-joint prosthesis is to achieve the purpose that biology is fixed by the direct Bone Ingrowth of bone and prosthese, gram
The shortcomings that bone-cement type prosthese mechanicalness combines has been taken, has promoted prosthese and osseointegration, improves the long-time stability of prosthese, and
Later period of being more convenient for overhauls, and is with a wide range of applications.For bion knee-joint prosthesis, it can obtain firm initial
Stability is an important factor for influencing its later period Bone Ingrowth and long-time stability.Currently, bion knee-joint prosthesis mainly uses
The fixed form of interference press-fitting, tibial plateau prosthesis is fixed on shin bone, certain initial stability is obtained.However, existing
Bion knee-joint prosthesis is easy to produce loosening under load of walking, and the complication such as tibial plateau sinking or tilting often occurs, leads
Cause tibial plateau initial stability insufficient, reason is that tibial plateau is not able to achieve effective strong fixation or negative by bias more
The cross shear that lotus generates causes to generate fine motion or displacement between prosthese-bone interface.Therefore, by improving biological knee joint shin
The fixed design of bone platform strengthens the firm connection of articular prosthesis and shin bone tissue, for enhancing the first of biological knee-joint prosthesis
Beginning stability, and promote later period Bone Ingrowth and improve prosthese long-time stability, all have great importance.
Summary of the invention
It is flat the purpose of the present invention is overcoming the deficiencies of the prior art and provide a kind of bion knee joint mechanical pressurization shin bone
Platform.
A second object of the present invention is to provide another bion knee joint mechanical pressurization tibial plateaus.
Technical solution of the present invention is summarized as follows:
A kind of bion knee joint mechanical pressurization tibial plateau, including kidney shape platform support 1, to crook in kidney shape platform support
Upper surface be provided with swallow-tail form convex block 3, the lateral surface of two oblique branches of swallow-tail form convex block is provided with rearward recess 5, in kidney
Shape platform support and the upper surface of the export-oriented crook relative to swallow-tail form convex block are provided with arc bump 2, in the outside of arc bump
Face from top to bottom, is provided with fixation hole 7 and lower fixed hole 6, and the medial surface of arc bump 2 is provided with forward recess 8；Kidney shape is flat
Hole 10 is provided in the middle part of platform support, kidney shape platform support lower surface is connected with handle 4, and handle 4 is lower thin and upper thick reducer pipe；Kidney shape platform support
Lower surface is connect by support plate 9 with the outer surface of reducer pipe, and hole 10 and reducer pipe internal run-through are arranged；Reducer pipe middle and upper part
Tapped ring flat-plate 11 is provided on inner wall, the outer surface of upper of mandril is provided with minor thread 15, lower external face is provided with
The major thread 16 bigger than the screw pitch of minor thread and outer diameter, the upper surface of mandril are provided with regular hexagon groove 12, minor thread and band
The ring flat-plate 11 of internal screw thread is threadedly coupled.
Preferably, major thread is 0.1-5mm bigger than the screw pitch of minor thread.
Another bion knee joint mechanical pressurization tibial plateau, including kidney shape platform support 21, in kidney shape platform support to
The upper surface of crook is provided with swallow-tail form convex block 23, and the lateral surface of two oblique branches of swallow-tail form convex block is provided with rearward recess
25, kidney shape platform support and the upper surface of the export-oriented crook relative to swallow-tail form convex block 23 are provided with arc bump 22, in arc
The lateral surface of convex block 22 from top to bottom, is provided with fixation hole 27 and lower fixed hole 26, is arranged in the medial surface of arc bump 22
There is forward recess 28；Hole 30 is provided in the middle part of kidney shape platform support, kidney shape platform support lower surface is connected with handle 24, and handle 24 is lower thin and upper thick
Reducer pipe；Kidney shape platform support lower surface is connect by support plate 29 with the outer surface of reducer pipe, is passed through inside hole 30 and reducer pipe
Logical setting；It is provided with tapped ring flat-plate 31 on the inner wall of reducer pipe middle and upper part, is connected with nut 37, nut at the top of mandril
Upper surface be provided with regular hexagon groove 32, the outer surface of upper of mandril is smooth, and lower part is provided with major thread 36, mandril it is upper
Portion is slidably connected with tapped ring flat-plate 31.
Advantages of the present invention:
1, bion knee joint mechanical pressurization tibial plateau of the invention is conducive to surgical procedure.
2, bion knee joint mechanical pressurization tibial plateau of the invention, it is dual using " interference press-fitting " and " mechanical pressurization "
Mechanism is firmly embedded into mandril in shin bone, so that tibial plateau is steadily fixed on shin bone, acts on lower platform in load
It is not in loosen, to solve the insufficient problem of existing bion knee joint tibial platform initial stability.
Detailed description of the invention
Fig. 1 is a kind of bion knee joint mechanical pressurization tibial plateau stereoscopic schematic diagram；
Fig. 2 is a kind of bion knee joint mechanical pressurization tibial plateau cross-sectional view (being perspective view with externally threaded mandril)；
Fig. 3 is a kind of bion knee joint mechanical pressurization tibial plateau shaft side figure (no mandril)；
Fig. 4 is another bion knee joint mechanical pressurization tibial plateau stereoscopic schematic diagram；
Fig. 5 is another bion knee joint mechanical pressurization tibial plateau shaft side figure (mandril with nut is perspective view).
Specific embodiment
The present invention will be further described below with reference to the drawings.
A kind of bion knee joint mechanical pressurization tibial plateau, including kidney shape platform support 1, to crook in kidney shape platform support
Upper surface be provided with swallow-tail form convex block 3, the lateral surface of two oblique branches of swallow-tail form convex block is provided with rearward recess 5, in kidney
Shape platform support and the upper surface of the export-oriented crook relative to swallow-tail form convex block are provided with arc bump 2, in the outside of arc bump
Face from top to bottom, is provided with fixation hole 7 and lower fixed hole 6, and the medial surface of arc bump 2 is provided with 8 (forward recess of forward recess
8 and rearward recess 5 effectively tibial plateau pad can be fixed on tibial plateau)；Hole 10, kidney shape are provided in the middle part of kidney shape platform support
Platform support lower surface is connected with handle 4, and handle 4 is that (lower thin and upper thick reducer pipe is conducive in surgical procedure will for lower thin and upper thick reducer pipe
Tibial plateau is installed to shin bone)；Kidney shape platform support lower surface is connect by support plate 9 with the outer surface of reducer pipe, hole 10 and change
The setting of diameter pipe internal run-through；Tapped ring flat-plate 11, the outer surface of upper of mandril are provided on the inner wall of reducer pipe middle and upper part
It is provided with minor thread 15, lower external face is provided with the major thread 16 bigger than the screw pitch of minor thread and outer diameter, the upper surface of mandril
It is provided with regular hexagon groove 12, minor thread is threadedly coupled with tapped ring flat-plate 11.
Its working principle is that: the regular hexagon groove 12 on mandril is turned at the time of surgery, and holding handle is used in mandril rotation
Fixation hole and lower fixed hole are clamped, guarantees that tibial plateau is not rotated with mandril, the body of rod is rotated down by screw thread, when with outer spiral shell
When the body of rod of line exceeds reducer pipe, start to be screwed into shin bone with the externally threaded body of rod.Since major thread screw pitch is small greater than top
Thread pitch, body of rod lower part gradually generates downward traction force to the body of rod top during being screwed into tibial cancellous bone, and then plays
The effect of mechanical pressurization.
Preferably, major thread it is 0.1-5mm bigger than the screw pitch of minor thread among Any Digit, for example, 0.1mm, 0.5mm,
1mm, 2.5mm or 5mm.
Another bion knee joint mechanical pressurization tibial plateau, including kidney shape platform support 21, in kidney shape platform support to
The upper surface of crook is provided with swallow-tail form convex block 23, and the lateral surface of two oblique branches of swallow-tail form convex block is provided with rearward recess
25, kidney shape platform support and the upper surface of the export-oriented crook relative to swallow-tail form convex block 23 are provided with arc bump 22, in arc
The lateral surface of convex block 22 from top to bottom, is provided with fixation hole 27 and lower fixed hole 26, is arranged in the medial surface of arc bump 22
There is forward recess 28 (tibial plateau pad can be effectively fixed on tibial plateau by forward recess 28 and rearward recess 25)；Kidney shape platform support
Middle part is provided with hole 30, and kidney shape platform support lower surface is connected with handle 24, and handle 24 is lower thin and upper thick reducer pipe (lower thin and upper thick change
Diameter pipe is conducive in surgical procedure install tibial plateau to shin bone)；Kidney shape platform support lower surface passes through support plate 29 and reducer pipe
Outer surface connection, hole 30 and reducer pipe internal run-through are arranged；Tapped ring is provided on the inner wall of reducer pipe middle and upper part
Plate 31 is connected with nut 37 at the top of mandril, and the upper surface of nut is provided with regular hexagon groove 32, the outer surface of upper of mandril
Smooth, lower part is provided with major thread 36, and the top of mandril is slidably connected with tapped ring flat-plate 31.
Its working principle is that: the regular hexagon groove of the upper surface of nut, mandril rotation, with clamping are turned at the time of surgery,
Handle clamp lives in fixation hole and lower fixed hole, guarantees that tibial plateau is not rotated with mandril, the body of rod is screwed in shin bone, until nut
Tibial plateau is squeezed, mechanical pressurization is played the role of.
Claims (3)
1. a kind of bion knee joint mechanical pressurization tibial plateau, including kidney shape platform support (1), it is characterized in that in kidney shape platform support
It is interior that the upper surface of crook is provided with swallow-tail form convex block (3), after the lateral surface of two oblique branches of swallow-tail form convex block is provided with
Groove (5) is provided with arc bump (2) in kidney shape platform support and the upper surface of the export-oriented crook relative to swallow-tail form convex block,
The lateral surface of arc bump from top to bottom, is provided with fixation hole (7) and lower fixed hole (6), the medial surface in arc bump (2)
It is provided with forward recess (8)；It is provided with hole (10) in the middle part of kidney shape platform support, kidney shape platform support lower surface is connected with handle (4), handle (4)
For lower thin and upper thick reducer pipe；Kidney shape platform support lower surface is connect by support plate (9) with the outer surface of reducer pipe, hole (10) and
The setting of reducer pipe internal run-through；It is provided on the inner wall of reducer pipe middle and upper part tapped ring flat-plate (11), outside the top of mandril
Surface is provided with minor thread (15), lower external face is provided with the major thread (16) bigger than the screw pitch of minor thread and outer diameter, mandril
Upper surface be provided with regular hexagon groove (12), minor thread is threadedly coupled with tapped ring flat-plate (11).
2. tibial plateau according to claim 1, it is characterized in that major thread is 0.1-5mm bigger than the screw pitch of minor thread.
3. a kind of bion knee joint mechanical pressurization tibial plateau, including kidney shape platform support (21), it is characterized in that in kidney shape platform
The upper surface of crook is provided with swallow-tail form convex block (23) in support, is provided in the lateral surface of two oblique branches of swallow-tail form convex block
Rearward recess (25) is provided with arc bump in kidney shape platform support and the upper surface of the export-oriented crook relative to swallow-tail form convex block (23)
(22), the lateral surface of arc bump (22) from top to bottom, be provided with fixation hole (27) and lower fixed hole (26), it is convex in arc
The medial surface of block (22) is provided with forward recess (28)；It is provided with hole (30) in the middle part of kidney shape platform support, kidney shape platform support lower surface connects
It is connected to handle (24), handle (24) is lower thin and upper thick reducer pipe；Kidney shape platform support lower surface passes through support plate (29) and reducer pipe
Outer surface connection, hole (30) and reducer pipe internal run-through are arranged；Tapped ring is provided on the inner wall of reducer pipe middle and upper part
Plate (31) is connected with nut (37) at the top of mandril, and the upper surface of nut is provided with regular hexagon groove (32), the top of mandril
Smooth outer surface, lower part are provided with major thread (36), and the top of mandril is slidably connected with tapped ring flat-plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308410.5A CN109925101A (en) | 2019-04-17 | 2019-04-17 | A kind of bion knee joint mechanical pressurization tibial plateau |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308410.5A CN109925101A (en) | 2019-04-17 | 2019-04-17 | A kind of bion knee joint mechanical pressurization tibial plateau |
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| CN109925101A true CN109925101A (en) | 2019-06-25 |
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| CN201910308410.5A Pending CN109925101A (en) | 2019-04-17 | 2019-04-17 | A kind of bion knee joint mechanical pressurization tibial plateau |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2653992A1 (en) * | 1989-11-09 | 1991-05-10 | Berakassa Richard | Total sliding knee prosthesis |
| WO1995024874A1 (en) * | 1994-03-17 | 1995-09-21 | Euros S.A. | Knee joint prosthesis assembly |
| JP2002065682A (en) * | 2000-08-29 | 2002-03-05 | Depuy Japan Inc | Plate for higher tibia osteotomy |
| CN201743761U (en) * | 2010-08-20 | 2011-02-16 | 中国人民解放军第二军医大学 | Absorbent double end thread compression screw |
| CN102217973A (en) * | 2011-06-09 | 2011-10-19 | 徐达强 | Thread pressurizing device applied on metrizable torque force for partial articulation fractures |
| CN102232881A (en) * | 2010-04-23 | 2011-11-09 | 中国人民解放军第一七五医院 | Lumbar interbody fusion device |
| CN203815565U (en) * | 2014-02-17 | 2014-09-10 | 爱派司生技股份有限公司 | Bone screw structure with a plurality of cutting grooves |
| CN203873919U (en) * | 2013-12-27 | 2014-10-15 | 北京爱康宜诚医疗器材股份有限公司 | Biologically fixed type tibial plateau |
| CN204219019U (en) * | 2014-11-06 | 2015-03-25 | 莆田学院附属医院 | Become the locking bone screw of helicitic texture |
| CN105055049A (en) * | 2015-09-21 | 2015-11-18 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
| CN105796212A (en) * | 2016-05-27 | 2016-07-27 | 嘉思特华剑医疗器材(天津)有限公司 | Knee-joint prosthesis at different activity angles under the same plateau |
| CN210056347U (en) * | 2019-04-17 | 2020-02-14 | 嘉思特华剑医疗器材(天津)有限公司 | Biological knee joint mechanical pressurization tibial plateau |
-
2019
- 2019-04-17 CN CN201910308410.5A patent/CN109925101A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2653992A1 (en) * | 1989-11-09 | 1991-05-10 | Berakassa Richard | Total sliding knee prosthesis |
| WO1995024874A1 (en) * | 1994-03-17 | 1995-09-21 | Euros S.A. | Knee joint prosthesis assembly |
| JP2002065682A (en) * | 2000-08-29 | 2002-03-05 | Depuy Japan Inc | Plate for higher tibia osteotomy |
| CN102232881A (en) * | 2010-04-23 | 2011-11-09 | 中国人民解放军第一七五医院 | Lumbar interbody fusion device |
| CN201743761U (en) * | 2010-08-20 | 2011-02-16 | 中国人民解放军第二军医大学 | Absorbent double end thread compression screw |
| CN102217973A (en) * | 2011-06-09 | 2011-10-19 | 徐达强 | Thread pressurizing device applied on metrizable torque force for partial articulation fractures |
| CN203873919U (en) * | 2013-12-27 | 2014-10-15 | 北京爱康宜诚医疗器材股份有限公司 | Biologically fixed type tibial plateau |
| CN203815565U (en) * | 2014-02-17 | 2014-09-10 | 爱派司生技股份有限公司 | Bone screw structure with a plurality of cutting grooves |
| CN204219019U (en) * | 2014-11-06 | 2015-03-25 | 莆田学院附属医院 | Become the locking bone screw of helicitic texture |
| CN105055049A (en) * | 2015-09-21 | 2015-11-18 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
| CN105796212A (en) * | 2016-05-27 | 2016-07-27 | 嘉思特华剑医疗器材(天津)有限公司 | Knee-joint prosthesis at different activity angles under the same plateau |
| CN210056347U (en) * | 2019-04-17 | 2020-02-14 | 嘉思特华剑医疗器材(天津)有限公司 | Biological knee joint mechanical pressurization tibial plateau |
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Address after: No.27 Ziyang Road Nankai District Tianjin 300190 Applicant after: Jiasite medical equipment (Tianjin) Co.,Ltd. Address before: No.27 Ziyang Road Nankai District Tianjin 300190 Applicant before: Jiasite Huajian Medical Equipment(Tianjin)Co.,Ltd. |
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