CN202168871U - Anti-spinning tuning fork type intramedullary extension rod - Google Patents
Anti-spinning tuning fork type intramedullary extension rod Download PDFInfo
- Publication number
- CN202168871U CN202168871U CN 201120226010 CN201120226010U CN202168871U CN 202168871 U CN202168871 U CN 202168871U CN 201120226010 CN201120226010 CN 201120226010 CN 201120226010 U CN201120226010 U CN 201120226010U CN 202168871 U CN202168871 U CN 202168871U
- Authority
- CN
- China
- Prior art keywords
- extension rod
- type
- fork type
- tuning
- marrow
- 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.)
- Expired - Lifetime
Links
- 238000009987 spinning Methods 0.000 title abstract 5
- 210000000689 upper leg Anatomy 0.000 claims abstract description 10
- 210000000629 knee joint Anatomy 0.000 abstract description 28
- 210000002303 tibia Anatomy 0.000 abstract description 5
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 210000000988 bone and bone Anatomy 0.000 description 7
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000001054 cortical effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000033998 Device material issue Diseases 0.000 description 1
- 206010040943 Skin Ulcer Diseases 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013150 knee replacement Methods 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 231100000019 skin ulcer Toxicity 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
Images
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
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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 utility model discloses an anti-spinning tuning fork type intramedullary extension rod, which is used for prosthesis replacement of knee joints. One end of the anti-spinning tuning fork type intramedullary extension rod is connected with a lateral femoral condyle or tibia platform, the other end of the anti-spinning tuning fork type intramedullary extension rod is firmly fixed in medullary cavities of the femur and the tibia of a human body, an artificial prosthesis is fixed on the surface of a knee joint by the aid of the intramedullary extension rod, and stability of prosthesis rebuilding during knee joint revision and replacement surgery is guaranteed. The anti-spinning tuning fork type intramedullary extension rod is simple in structure and low in manufacturing cost, and has excellent application and market prospects.
Description
Technical field
This utility model relates to a kind of extension rod of artificial knee joint prosthesis; Refer in particular in overhauling the displacement of type knee-joint prosthesis; Be used for being connected with condyle of femur or tibial plateau; Auxiliary knee-joint prosthesis can be adapted to different-diameter at the marrow internal fixation, and the tuning-fork type of the physiology pulp cavity of different shape is anti-to revolve extension rod in the type marrow.
Background technology
Total knee replacement is the Last Resort of the serious pathologic changes of knee joint of treatment, and the clinical acceptance rate of replacing for the first time more than 15 years reaches more than 90%.And As time goes on; First metathetical knee-joint prosthesis is at a specified future date after surgery can to cause the artificial knee joint prosthesis actual effect because of factors such as prosthesis wear, loosening, prosthese terminations in service life; Perhaps, because the infection of postoperative short-term skin ulcer portion, prosthese dislocation etc. are many former thereby have to prosthese is taken out.After the first metathetical prosthese actual effect,, need implement the knee joint revision procedure to the patient in order to recover the function of motion of knee joint and support.For overhauling the type knee-joint prosthesis; Extension rod is important building block in the marrow; It can assist knee-joint prosthesis to be fixed in the backbone; Part reduces the stress disappearance of damaged metaphysis of bone or heteroplastic transplantation bone, but physiological ground conducts to pulp cavity with joint or surperficial stress, and reconstruction of stability is played key effect.Cause is overhauled in the knee-joint prosthesis, the design rationalization of extension rod in the marrow, and becoming influences the key factor that knee joint is overhauled the replacement operation effect.
At present; Being used for complete knee joint overhauls in the marrow of replacement operation extension rod and adopts the screw-type connection more being connected of knee-joint prosthesis; Mostly the extension rod body design is the right cylinder type, when extension rod screws in knee-joint prosthesis in marrow, cause easily be difficult for implanting, implant unstable, extension rod is difficult to play a role, the extension rod diameter is difficult to adapt to different problems such as pulp cavity form with direction; Can cause complication such as the big skelalgia of human body simultaneously, the effect of influence operation.Therefore; Need design at present a kind of can be not limited to setting angle, easy for installation, be beneficial to doctor operation; The knee joint that can at utmost reduce less patient suffering is overhauled replacement and is satisfied this requirement with extension rod in the marrow, thereby guarantees the reconstruction of stability property of knee joint revision procedure.
The utility model content
The purpose of this utility model is just to provide a kind ofly to guarantee that knee joint is overhauled and can adapt to different pulp cavity shapes in the replacement operation, can guarantee again that the tuning-fork type of reconstruction of stability property is anti-to revolve extension rod in the type marrow.
For realizing above-mentioned purpose, this utility model is taked following technical scheme:
A kind of anti-extension rod in the type tuning-fork type marrow that revolves; Divide biasing class and two kinds of not offset classes, this extension rod is made up of coniform head and cylindrical bodies, and the main body end is a tuning fork structure; Main body upper edge generatrix direction is evenly distributed with several shallow slots, and the shallow slot edge is that the rib shape is protruding.Coniform head can be connected with the condyle of femur prosthese or the tibial plateau prosthese of artificial knee joint; Main part inserts in the pulp cavity inside of human femur under loading or tibia; Main body has coaxial the connection with eccentric to be connected two kinds with the tapering; Not offset type is also claimed in coaxial connection, and eccentric the connection is eccentrically arranged type, eccentrically arranged type offset or dish t=3～8mm.
Rib is protruding to be revolved and strong fixed effect to anti-, and the shallow slot of generatrix direction stringer also can increase the blood fortune of pulp cavity; The tuning-fork type afterbody provides necessary elastic mechanism; Make and prolong handle after inserting pulp cavity; Not only can effectively reduce the risk of DF splitting, simultaneously also can reduce the resistance that contacts between extension rod and the human body cortical bone to the full extent, reduce the generation of the big skelalgia disease of patient;
The beneficial effect of this utility model is:
When this is anti-when revolving in the type tuning-fork type marrow extension rod and being connected afterwards the implantation pulp cavity with knee-joint prosthesis; Rib shape convexity along the shallow slot edge of generatrix direction stringer will be intercalated in the spongy bone of pulp cavity; Make this prosthese have good anti-rotation performance, play strong fixing and anti-effect of revolving; The fluting of generatrix direction has increased the blood fortune of pulp cavity, has kept the normal blood supply at each position of skeleton.
When extension rod in the knee joint marrow is connected back implantation pulp cavity with knee-joint prosthesis; Because of the human body bone structure is the natural torsion shape; And because of individual variation flexibility and direction all have difference; So extension rod can come in contact with human body pulp cavity cortical bone,, will cause the patient that the phenomenon of big skelalgia takes place if conflict power is big.The utlity model has the tuning-fork type structure; This structural design has certain elasticity; Revolve in the type marrow behind the extension rod and human body cortical bone generation resistance when tuning-fork type is anti-; The terminal existence that can significantly reduce this species resistance because of the elastic existence of tuning fork of this extension rod can reduce the generation of this ailing phenomenon to the full extent.
The different biasing t that should anti-revolve extension rod in the type tuning-fork type marrow can be adapted to the different pulp cavity form of human body, and the stability that this point is implanted for prosthese plays important effect.
Therefore, this utility model design concept is advanced, simple in structure, and the elastic principle that makes full use of structure on the one hand reduces the generation of the big skelalgia disease of patient; On the other hand, utilize fluting to increase the blood fortune of pulp cavity, protruding simultaneously seamed edge has been strengthened the stability of prosthese in human body; Different biasing t can be adapted to the different pulp cavity form of human body simultaneously.So overhauling in knee joint, this utility model has good application and market prospect in the replacement operation.
Below in conjunction with the accompanying drawing and the specific embodiment this utility model is explained further details, this embodiment only is this utility model preferred forms, is not the qualification to this utility model.
Description of drawings
Fig. 1 is the structural representation of this utility model biasing class;
Fig. 2 is the structural representation of not offset type of this utility model;
Fig. 3 is the embodiment sketch map of this utility model;
The specific embodiment
Referring to shown in Figure 1: a kind of anti-extension rod in the type tuning-fork type marrow that revolves, wherein it includes a main body, and this main body one end is set to coniform (1), is connected with knee-joint prosthesis; The other end is the structure (3) of a plurality of tuning-fork-types; Far-end is by the equally distributed groove of ring-type (2) in the bar portion, and the edge of groove is obviously protruding; Bar portion has biasing class and two kinds of not offset classes respectively, and Fig. 1 is not offset type for biasing class, Fig. 2.
Coniform head can be connected with the condyle of femur prosthese (7) or the tibial plateau prosthese (8) of artificial knee joint; Main part inserts in the pulp cavity inside of human femur under loading (6) or tibia (10); The anti-extension rod that revolves in the type tuning-fork type marrow is connected with human femur under loading (6) and is extension rod (5) in the femur marrow on the function, and anti-to revolve in the type tuning-fork type marrow that extension rod is connected on the function with human tibia (10) be the interior extension rod (9) of femur marrow.
The above-mentioned anti-extension rod in the type tuning-fork type marrow that revolves, main body be evenly distributed with several shallow slots along generatrix direction, the shallow slot edge is that the rib shape is protruding, the groove number can be 3,4,5,6,7,8.Bar portion multiple groove structural design has increased the blood fortune of pulp cavity, has improved the anti-commentaries on classics performance of prosthese simultaneously, plays strong fixing and anti-effect of revolving.
The above-mentioned anti-interior extension rod of type tuning-fork type marrow that revolves, the far-end sound is the tuning-fork type structure, and the bifurcated width is 2～4mm, and length can be that 30mm～60mm is different according to the length of extension rod.This structural design has certain elasticity, can disperse the pressure of prosthese far-end to the pulp cavity sclerotin, and effectively the generation of the phenomenon of big skelalgia takes place reduction of patient.
The above-mentioned anti-interior extension rod of type tuning-fork type marrow that revolves, wherein: different biasing t can be adapted to the different pulp cavity form of human body, and the stability that this point is implanted for prosthese plays important effect.
Claims (4)
1. a far-end is the anti-interior extension rod of marrow that revolves type tuning-fork type condyle of femur and tibial plateau; It is characterized in that: it includes a main body; Main body upper edge generatrix direction is evenly distributed with several shallow slots, and the shallow slot edge is rib shape protruding (2), and these main body two ends are respectively arranged with coniform head (1) and tuning-fork type afterbody (3); This extension rod has two kinds, two kinds of biasing class and not offset classes.
2. the anti-extension rod in the type tuning-fork type marrow that revolves according to claim 1, it is characterized in that: main body upper edge generatrix direction is evenly distributed with several shallow slots, and the shallow slot edge is rib shape protruding (1), and the groove number can be 3,4,5,6,7,8.
3. the anti-extension rod in the type tuning-fork type marrow that revolves according to claim 1 is characterized in that: the length of tuning fork structure (3) is according to the model design of extension rod, and the width of bifurcation structure (3) is 2～4mm.
4. the anti-extension rod in the type tuning-fork type marrow that revolves according to claim 1 is characterized in that: not offset type and biasing type two kinds of designs (4) are arranged, and offset or dish is t=3～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120226010 CN202168871U (en) | 2011-06-30 | 2011-06-30 | Anti-spinning tuning fork type intramedullary extension rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120226010 CN202168871U (en) | 2011-06-30 | 2011-06-30 | Anti-spinning tuning fork type intramedullary extension rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202168871U true CN202168871U (en) | 2012-03-21 |
Family
ID=45827076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120226010 Expired - Lifetime CN202168871U (en) | 2011-06-30 | 2011-06-30 | Anti-spinning tuning fork type intramedullary extension rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202168871U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103690277A (en) * | 2012-09-20 | 2014-04-02 | 德普伊(爱尔兰)有限公司 | Knee prosthesis system with reinforcing members and sleeves |
| CN106456335A (en) * | 2014-03-12 | 2017-02-22 | 精密技术公司 | Prosthesis componet with offset adjustability |
| US10543097B2 (en) | 2012-09-20 | 2020-01-28 | Depuy Ireland Unlimited Company | Method and surgical instrument system with multiple lengths of broaches sharing a common geometry |
-
2011
- 2011-06-30 CN CN 201120226010 patent/CN202168871U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103690277A (en) * | 2012-09-20 | 2014-04-02 | 德普伊(爱尔兰)有限公司 | Knee prosthesis system with reinforcing members and sleeves |
| US10543097B2 (en) | 2012-09-20 | 2020-01-28 | Depuy Ireland Unlimited Company | Method and surgical instrument system with multiple lengths of broaches sharing a common geometry |
| US10583011B2 (en) | 2012-09-20 | 2020-03-10 | Depuy Ireland Unlimited Company | Method and system including sleeves and broaches for surgically preparing the patient's bone |
| US11648127B2 (en) | 2012-09-20 | 2023-05-16 | Depuy Ireland Unlimited Company | Method and system including sleeves and broaches for surgically preparing the patient's bone |
| CN106456335A (en) * | 2014-03-12 | 2017-02-22 | 精密技术公司 | Prosthesis componet with offset adjustability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109662809B (en) | Bionic tumor type knee joint prosthesis | |
| CN1780595B (en) | Prosthetic device for total joint replacement in small joint arthroplasty | |
| CN201510379U (en) | Hip prosthesis | |
| CN111529139A (en) | Assembled tumor type artificial tibia distance joint prosthesis | |
| CN202168871U (en) | Anti-spinning tuning fork type intramedullary extension rod | |
| CN113244025A (en) | Elbow joint resurfacing prosthesis | |
| CN215584480U (en) | 3D prints half ankle joint prosthesis of customization | |
| CN111134903A (en) | Tibia prosthesis | |
| CN212281780U (en) | Tibia prosthesis | |
| CN201806801U (en) | Furcal femoral handle | |
| CN109157309B (en) | Proximal tibial filler block prosthesis | |
| CN208404992U (en) | The distal femur prosthese using trabecular bone structure of bone reserve capacity can be increased | |
| CN212913480U (en) | Assembled tumor type artificial tibialis distance joint prosthesis | |
| CN2350012Y (en) | Knee joint unilateral condylar surface replacing artificial prosthesis | |
| CN105213071A (en) | A kind of bone conservative knee-joint prosthesis | |
| CN202821717U (en) | Airfoil-shaped femoral stem with circular bottom | |
| CN201861737U (en) | Far-end multi-groove type intramedullary extension rod | |
| CN212308140U (en) | Tibia prosthesis | |
| CN209316155U (en) | Proximal tibia filling block prosthese | |
| CN212879688U (en) | Tibia far-end ankle joint prosthesis | |
| CN114206271B (en) | Double-chamber knee joint prosthesis | |
| CN211067219U (en) | Hip joint prosthesis | |
| CN113797000A (en) | Talus fusion surface type artificial ankle joint prosthesis | |
| CN209996458U (en) | Combined tibial plateau posterolateral dissection steel plate | |
| CN203483544U (en) | Artificial hip joint prosthesis handle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Chaoyang Inventor after: Wang Caimei Inventor before: Wang Caimei |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee after: Beijing AKEC Medical Co., Ltd. Address before: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee before: Beijing AKEC Medical Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |