CN109106476A - Distal tibial prosthese - Google Patents
Distal tibial prosthese Download PDFInfo
- Publication number
- CN109106476A CN109106476A CN201811069536.3A CN201811069536A CN109106476A CN 109106476 A CN109106476 A CN 109106476A CN 201811069536 A CN201811069536 A CN 201811069536A CN 109106476 A CN109106476 A CN 109106476A
- Authority
- CN
- China
- Prior art keywords
- distal
- prosthese
- supporting part
- base station
- tibial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 30
- 239000002639 bone cement Substances 0.000 abstract description 4
- 206010069135 Periprosthetic fracture Diseases 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000035876 healing Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 7
- 206010028980 Neoplasm Diseases 0.000 description 6
- 210000000544 articulatio talocruralis Anatomy 0.000 description 6
- 206010005949 Bone cancer Diseases 0.000 description 4
- 210000003423 ankle Anatomy 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000002303 tibia Anatomy 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 238000011226 adjuvant chemotherapy Methods 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000002082 fibula Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011164 ossification Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 230000004614 tumor growth Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention relates to distal tibial prostheses, including distal end base station and distal stem, distal stem includes supporting part and the trabecular bone structure layer A set on supporting part outer surface, supporting part upper end is connect with distal end base station bottom surface, distal end base station top surface is equipped with anti-rotation platform, anti- rotation countertop is equipped with outer cone, and the cross section of distal stem is ellipse, and distal end base station bottom outer surface is equipped with trabecular bone structure layer B.Distal stem of the present invention divides axis supporting part and surface trabecular bone structure, while meeting load bearing demand and can promote Bone Ingrowth again, to reach medium-long term stability；Distal stem cross section is ellipse, can not only increase the contact area of distal tibial pulp cavity and prosthetic surface, but also can play anti-rotation function, fix without screw, can reach initial stability, greatly shortens operating time, reduces operating difficulty；The problems such as aseptic loosening, initial interface healing and Periprosthetic fracture are easy to appear when can solve bone-cement type tibial shaft prosthese distal end regular length deficiency.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to distal tibial prostheses.
Background technique
With the standardization application of new adjuvant chemotherapy, the life cycle of malignant bone tumor patient has been obviously improved, and protects limb hand
Art has become the main policies of conventional treatment malignant bone tumor.Distal tibial is the important weight bearing area of human body, and distal tibial
Special anatomical structure, more perfect intermuscular septum and relatively thin soft tissue covers, makes tumour growth based on pushing, wettability
It is poor and be easier to be found earlier, therefore long-term survival rate is pernicious compared with other four limbs after the treatment of distal tibial malignant bone tumor
Bone tumour obviously increases, so the long-term function of retaining ankle is particularly important.
The mode that distal tibial limit bone defect (3-5cm) common at present retains the reconstruction of ankle-joint mainly has,
Homogeneous allogenic bone transplantation, the transplanting of band blood vessel Fibula autograft, tumor section inactivation Hui Zhi, distraction osteogenesis and bone carry technology, film induction at
Bone technology, artificial Tumor Stem prosthese.But also all there is respective limitations for they.If want a phase complete protect ankle operation and
Functional training and recovery function, artificial Tumor Stem prosthetic replacement it can should be used as first choice as early as possible, but when shin bone stump has length < 5cm
When, simple cement reaction medium-long term prosthese survival rate is lower, other incidence of complications of prosthese are higher.And if selected
Ankle fusion and artificial tumour ankle-joint displacement technique cannot obtain satisfied ankle-joint function as being rebuild tibial shaft
Energy.In addition, artificial tumour ankle-joint displacement technique not only needs to sacrifice the ankle joint function of itself, but also prosthese existence average rate is obvious
It is inferior to tibial shaft prosthese.Thus, under the premise of complete resection tumour, itself ankle-joint should be retained as far as possible.So, it is desirable to it obtains at once
Good initial stability is obtained, while so that interface is quickly healed again, also to guarantee good stability at a specified future date and good ankle
Function of joint is a current research emphasis.
Summary of the invention
The present invention is intended to provide distal tibial prosthese, can meet load bearing demand, has the function of anti-rotation, and it is long to can promote bone
Enter, to reach initial stability and medium-long term stability.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
Distal tibial prosthese, including distal end base station and distal stem, distal stem include supporting part and are set to outside supporting part
The trabecular bone structure layer A on surface, supporting part upper end are connect with distal end base station bottom surface, and distal end base station top surface is equipped with anti-rotation platform, are prevented
It revolves countertop and is equipped with outer cone, the cross section of distal stem is ellipse.
Wherein, the distal end base station bottom outer surface is equipped with trabecular bone structure layer B.
Further, the height of trabecular bone structure layer B is 1mm.
Preferably, trabecular bone structure layer A with a thickness of 2mm.
Further, the length of supporting part is 31mm, and the length of outer cone is 10mm.
Further, the major diameter of distal stem cross section is 19.2mm, minor axis 14.6mm.
Wherein, outer cone, anti-rotation platform, distal end base station and supporting part are integrally manufactured.
Further, trabecular bone structure layer A and supporting part are integrally manufactured.
Further, further include for assemble that the prosthese of connection is dry with outer cone and proximal end marrow in handle, the dry top of prosthese and marrow
Interior handle connection, prosthese are dry integrally manufactured with handle in the marrow of proximal end；There is the inner cone chamber being adapted to outer cone at prosthese dry bottom end, and prosthese is dry
There is the anti-rotation boss being adapted to anti-rotation platform in bottom surface.
Preferably, the dry length of prosthese is 120mm, and the length of handle is 100mm in the marrow of proximal end.
Compared with prior art, the invention has the following advantages:
1, the present invention imitates distal tibial anatomic form feature, and biomethanics conduction more meets normal shin bone condition；Distal stem
Divide axis supporting part and surface trabecular bone structure, can not only meet load bearing demand but also can promote Bone Ingrowth, to reach medium-long term
Stability；Distal stem cross section use elliptic design, meet shape in distal tibial marrow, can both increase distal tibial pulp cavity with
The contact area of prosthetic surface, and anti-rotation function can be played, and fix without screw, initial stability can be reached, significantly
Reduce operating time and operating difficulty；(< 4cm) holds when can solve bone-cement type tibial shaft prosthese distal end regular length deficiency
Easily there is the problems such as aseptic loosening, initial interface healing and Periprosthetic fracture；
2, reserved 1cm length assembles interface, can assemble section according to defect of tibial length increase；
3, the entire all bions of prosthese are fixed, and are not necessarily to bone cement.
Detailed description of the invention
Fig. 1 is the main view of embodiment one；
Fig. 2 is the partial sectional view of Fig. 1；
Fig. 3 is the bottom view of embodiment one；
Fig. 4 is the top view of embodiment one；
Fig. 5 is the structural schematic diagram that section is assembled in embodiment two；
Fig. 6 is the structural schematic diagram of embodiment two；
In figure: the anti-rotation platform of the distal end 1- base station, 2-, 3- supporting part, 4- trabecular bone structure layer A, 5- outer cone, 6- bone trabecula knot
Structure layer B, 7- prosthese be dry, handle, the anti-rotation boss of 9- in the marrow of the proximal end 8-.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
Embodiment one
As shown in Figure 1, 2, distal tibial prosthese disclosed by the invention, including distal end base station 1 and distal stem, distal stem include
Supporting part 3 and trabecular bone structure layer A4 set on 3 outer surface of supporting part, 3 upper end of supporting part and 1 bottom surface of distal end base station connect
It connects, base station 1 top surface in distal end is equipped with anti-rotation platform 2, and there is anti-rotation plane in anti-2 side of rotation platform.Anti- 2 top surface of rotation platform is equipped with outer cone 5, outer cone 5
As interface is assembled, section can be assembled according to defect of tibial length increase.The cross section of distal stem is ellipse, distal stem cross section
Major diameter be 19.2mm, minor axis 14.6mm.
Outer cone 5, anti-rotation platform 2, distal end base station 1 and supporting part 3 are integrally manufactured；Trabecular bone structure layer A4 and supporting part 3
It is integrally manufactured.Wherein, base station 1 bottom outer surface in distal end is equipped with trabecular bone structure layer B6.Preferably, the length of supporting part 3 is
31mm, trabecular bone structure layer A4 with a thickness of 2mm, the length of outer cone 5 is 10mm.The height of distal end base station 1 is 10mm, bone trabecula
The height of structure sheaf B6 is 1mm.As shown in Figs 1-4, distal end base station 1 is anatomical form, and top surface is circle, which is
24mm。
Embodiment two
The difference between this embodiment and the first embodiment lies in: as shown in Figure 5,6, further include in the present embodiment for outer cone 5
Assemble handle 8 in the prosthese dry 7 and proximal end marrow of connection, prosthese, which does 7 bottom ends, inner cone chamber be adapted to outer cone 5, prosthese do 7 tops and
Handle 8 connects in marrow, and prosthese dry 7 is integrally manufactured with handle 8 in the marrow of proximal end.Prosthese, which does 7 bottom surfaces, the anti-rotation boss being adapted to anti-rotation platform 2
9, when outer cone 5 is in the inner cone chamber of prosthese dry 7, the anti-rotation plane of anti-rotation boss 9 and the anti-rotation plane of anti-rotation platform 2 offset
Touching prevents prosthese dry 7 from relatively rotating with distal end base station 1.In specifically used, section can be assembled according to defect of tibial length increase, this
The length of prosthese dry 7 is 120mm in embodiment, and the length of handle 8 is 100mm in the marrow of proximal end.
The present invention imitates distal tibial anatomic form feature, and biomethanics conduction more meets normal shin bone condition；Distal stem point
Axis supporting part and surface trabecular bone structure, while meeting load bearing demand again while can promote Bone Ingrowth, thus remote in reaching
Phase stability；Distal stem cross section uses elliptic design, meets shape in distal tibial marrow, can both increase distal tibial pulp cavity
With the contact area of prosthetic surface, and anti-rotation function can be played, and fix without screw, initial stability can be reached, greatly
It is big to reduce operating time and operating difficulty；When can solve bone-cement type tibial shaft prosthese distal end regular length deficiency (< 4cm)
The problems such as being easy to appear aseptic loosening, initial interface healing and Periprosthetic fracture.
Certainly, the present invention can also have other numerous embodiments, without deviating from the spirit and substance of the present invention,
Those skilled in the art can make various corresponding changes and modifications, but these corresponding changes and change according to the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. distal tibial prosthese, it is characterised in that: including distal end base station (1) and distal stem, distal stem include supporting part (3) and
Trabecular bone structure layer A (4) set on supporting part (3) outer surface, supporting part (3) upper end are connect with distal end base station (1) bottom surface,
Base station (1) top surface in distal end is equipped with anti-rotation platform (2), and anti-rotation platform (2) top surface is equipped with outer cone (5), and the cross section of distal stem is ellipse.
2. distal tibial prosthese according to claim 1, it is characterised in that: distal end base station (1) bottom outer surface is set
There is trabecular bone structure layer B (6).
3. distal tibial prosthese according to claim 2, it is characterised in that: the height of trabecular bone structure layer B (6) is 1mm.
4. distal tibial prosthese according to claim 2, it is characterised in that: trabecular bone structure layer A (4) with a thickness of 2mm.
5. distal tibial prosthese according to claim 1, it is characterised in that: the length of supporting part (3) is 31mm, outer cone
(5) length is 10mm.
6. distal tibial prosthese according to claim 1 or 5, it is characterised in that: the major diameter of distal stem cross section is
19.2mm, minor axis 14.6mm.
7. distal tibial prosthese according to claim 1, it is characterised in that: outer cone (5), anti-rotation platform (2), distal end base station
(1) and supporting part (3) is integrally manufactured.
8. distal tibial prosthese according to claim 7, it is characterised in that: trabecular bone structure layer A (4) and supporting part
(3) integrally manufactured.
9. distal tibial prosthese according to claim 1, it is characterised in that: further include being connect for being assembled with outer cone (5)
Prosthese do handle (8) in (7) and proximal end marrow, prosthese is done (7) top and is connect with handle in marrow (8), handle in prosthese dry (7) and proximal end marrow
(8) integrally manufactured；The prosthese, which does (7) bottom end, the inner cone chamber being adapted to outer cone (5), and prosthese, which does (7) bottom surface, to be had and anti-rotation platform
(2) the anti-rotation boss (9) being adapted to.
10. distal tibial prosthese according to claim 9, it is characterised in that: the length that prosthese does (7) is 120mm, proximal end
The length of handle (8) is 100mm in marrow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069536.3A CN109106476A (en) | 2018-09-13 | 2018-09-13 | Distal tibial prosthese |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069536.3A CN109106476A (en) | 2018-09-13 | 2018-09-13 | Distal tibial prosthese |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109106476A true CN109106476A (en) | 2019-01-01 |
Family
ID=64859539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811069536.3A Pending CN109106476A (en) | 2018-09-13 | 2018-09-13 | Distal tibial prosthese |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109106476A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111467088A (en) * | 2020-05-18 | 2020-07-31 | 四川大学华西医院 | 3D prints porous imitative trabecula arc intramedullary handle |
| CN114028035A (en) * | 2020-06-29 | 2022-02-11 | 北京力达康科技有限公司 | Fibula prosthesis based on 3D printing |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3987500A (en) * | 1976-01-28 | 1976-10-26 | Schlein Allen P | Surgically implantable total ankle prosthesis |
| US20060229730A1 (en) * | 2005-03-14 | 2006-10-12 | Topez Orthopedics, Inc. | Ankle replacement system |
| US20140180426A1 (en) * | 2009-04-13 | 2014-06-26 | George John Lian | Cannulated Modular Tibial Stem Component Pieces for Use in Total Ankle Arthroplasty and Systems for Installing and Removing Same |
| CN104302248A (en) * | 2012-03-21 | 2015-01-21 | 史密夫和内修有限公司 | Tibial implant having an anatomic stem |
| CN205083705U (en) * | 2015-03-30 | 2016-03-16 | 天津卫硕生物科技有限公司 | Utilize biological cell preparation to carry out deposited artificial joint |
| CN106137470A (en) * | 2016-07-28 | 2016-11-23 | 北京力达康科技有限公司 | A kind of reservation articular surface type can prolonged type tibial neoplasms knee-joint prosthesis |
| CN106175989A (en) * | 2016-07-01 | 2016-12-07 | 佟文 | A kind of connection prosthese for key defect |
| CN206167121U (en) * | 2016-07-28 | 2017-05-17 | 北京力达康科技有限公司 | Customization broach with bone trabecula porous structure |
| CN206167123U (en) * | 2016-07-28 | 2017-05-17 | 北京力达康科技有限公司 | Keep nodal section type that closes matched stack formula thighbone tumour knee joint prosthesis |
| CN209301403U (en) * | 2018-09-13 | 2019-08-27 | 四川大学华西医院 | Distal tibial prosthese |
-
2018
- 2018-09-13 CN CN201811069536.3A patent/CN109106476A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3987500A (en) * | 1976-01-28 | 1976-10-26 | Schlein Allen P | Surgically implantable total ankle prosthesis |
| US20060229730A1 (en) * | 2005-03-14 | 2006-10-12 | Topez Orthopedics, Inc. | Ankle replacement system |
| US20140180426A1 (en) * | 2009-04-13 | 2014-06-26 | George John Lian | Cannulated Modular Tibial Stem Component Pieces for Use in Total Ankle Arthroplasty and Systems for Installing and Removing Same |
| CN104302248A (en) * | 2012-03-21 | 2015-01-21 | 史密夫和内修有限公司 | Tibial implant having an anatomic stem |
| CN205083705U (en) * | 2015-03-30 | 2016-03-16 | 天津卫硕生物科技有限公司 | Utilize biological cell preparation to carry out deposited artificial joint |
| CN106175989A (en) * | 2016-07-01 | 2016-12-07 | 佟文 | A kind of connection prosthese for key defect |
| CN106137470A (en) * | 2016-07-28 | 2016-11-23 | 北京力达康科技有限公司 | A kind of reservation articular surface type can prolonged type tibial neoplasms knee-joint prosthesis |
| CN206167121U (en) * | 2016-07-28 | 2017-05-17 | 北京力达康科技有限公司 | Customization broach with bone trabecula porous structure |
| CN206167123U (en) * | 2016-07-28 | 2017-05-17 | 北京力达康科技有限公司 | Keep nodal section type that closes matched stack formula thighbone tumour knee joint prosthesis |
| CN209301403U (en) * | 2018-09-13 | 2019-08-27 | 四川大学华西医院 | Distal tibial prosthese |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111467088A (en) * | 2020-05-18 | 2020-07-31 | 四川大学华西医院 | 3D prints porous imitative trabecula arc intramedullary handle |
| CN114028035A (en) * | 2020-06-29 | 2022-02-11 | 北京力达康科技有限公司 | Fibula prosthesis based on 3D printing |
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