CN100394898C - Internal support device for treating femoral head necrosis - Google Patents
Internal support device for treating femoral head necrosis Download PDFInfo
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- CN100394898C CN100394898C CNB2005100212203A CN200510021220A CN100394898C CN 100394898 C CN100394898 C CN 100394898C CN B2005100212203 A CNB2005100212203 A CN B2005100212203A CN 200510021220 A CN200510021220 A CN 200510021220A CN 100394898 C CN100394898 C CN 100394898C
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- Prior art keywords
- femoral head
- thigh
- head necrosis
- treatment
- internal support
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Links
- 230000017074 necrotic cell death Effects 0.000 title abstract description 5
- 210000000988 bone and bone Anatomy 0.000 claims description 24
- 210000001694 thigh bone Anatomy 0.000 claims description 24
- 210000000744 eyelid Anatomy 0.000 claims description 21
- 208000007875 Femur Head Necrosis Diseases 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 4
- 238000007788 roughening Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 3
- 210000003275 diaphysis Anatomy 0.000 claims 1
- 230000006837 decompression Effects 0.000 abstract description 14
- 210000003128 head Anatomy 0.000 description 24
- 230000015572 biosynthetic process Effects 0.000 description 5
- 210000000689 upper leg Anatomy 0.000 description 4
- 229910000990 Ni alloy Inorganic materials 0.000 description 3
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000001225 therapeutic effect Effects 0.000 description 3
- 206010028851 Necrosis Diseases 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 210000001185 bone marrow Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008506 pathogenesis Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 210000005065 subchondral bone plate Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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Abstract
The invention discloses a femoral head inner support for treating femoral head necrosis, which mainly comprises a support body, a support component and an operating mechanism, wherein the support component is arranged on the support body, is of a structure capable of being unfolded to increase the support area, is arranged at one end of the support body, and is operated and unfolded by the operating mechanism. The supporting component can be formed by at least 3 arc-shaped blades, and the whole working state after the unfolding is umbrella-shaped. Compared with the femoral head inner support in the prior art, the femoral head inner support has the advantages that the support area can be greatly increased when the femoral head inner support is implanted into the femoral head, the mechanical property of the femoral head is well reconstructed, the femoral head can be effectively prevented from collapsing, and the femoral head cannot be greatly damaged due to the fact that a medullary core decompression channel is manufactured on the femoral head. The invention can greatly improve the cure rate of femoral head necrosis and reduce the pain and economic burden of patients.
Description
One, technical field
The present invention relates to be used for the treatment of in a kind of the interplantation apparatus that is used for the treatment of femur head necrosis, especially the implanted unit bone interplantation device of femur head necrosis.
Two, background technology
Femur head necrosis is mainly in young and middle-aged patient, and its cause of disease and pathogenesis thereof still imperfectly understand.In the treatment of femur head necrosis, present most scholars think that the core decompression method has reasonable therapeutic effect for the treatment of femur head necrosis.Adopt the concrete grammar of core decompression ruling by law treatment femur head necrosis to be, get out a marrow core passage at the femoral head place, make the marrow core obtain decompression, and remove the necrotic bone tissue, implant then from body or allograph bone tissue by operation.
Adopting core decompression ruling by law to treat femur head necrosis, prior art adopts the shape shape-memory titanium-nickel alloy net ball as the allograph bone tissue of implanting usually, promptly with the shape shape-memory titanium-nickel alloy net ball as interior eyelid retractor.Adopt the shape shape-memory titanium-nickel alloy net ball as interior eyelid retractor, though the state the when user mode of alloy tennis is implanted changes to some extent, Area of bearing when the Area of bearing during user mode is implanted increases to some extent, but the Area of bearing increase is very limited, and the mechanics support performance is bad.If obtain bigger Area of bearing, the bigger alloy tennis of palpus implanted diameter, for the bigger alloy tennis of implanted diameter must get out the bigger bone marrow passage of diameter on femoral head, can cause so again femoral head, neck structure are produced bigger destruction, the femoral head mechanical property can not well be rebuild, and can not effectively avoid collapse of the femoral head, and nickel element has certain side effect simultaneously, as carcinogenecity, influence MRI and check.Eyelid retractor in doing with pure titanium cage shape femoral head, Area of bearing can not increase, and implanted unit bone exists the bone marrow passage bigger equally, and is bigger to the femoral head bone destruction, can not effectively rebuild capital mechanical property.Adopting core decompression ruling by law to treat in the practice of femur head necrosis because these thigh-bone internal support device poor effect of prior art, the time regular meeting collapse of the femoral head takes place.In a single day femoral head subsides, the patient has to accept prosthetic replacement's treatment, and the artificial joint price is higher, and life cycle in vivo is shorter.Bring very big misery therefore can for patient's body ﹠ mind, produce the financial burden that is difficult to bear.
Three, summary of the invention
Deficiency at the existence of prior art thigh-bone internal support device, purpose of the present invention aims to provide a kind of thigh-bone internal support device that is used for the treatment of femur head necrosis of novel concept, can not effectively be enlarged with back Area of bearing in the thigh-bone internal support device implanted unit bone that solves prior art, and poor mechanical property, if make it that enough big Area of bearing be arranged, then can produce than havoc femoral head neck matter, can not effectively prevent collapse of the femoral head, influence femoral head, cervical region biomechanics of bone performance, cause problems such as femoral head and neck fracture easily.
For solving the problems of the technologies described above, the thigh-bone internal support device that is used for the treatment of femur head necrosis provided by the invention has been taked following technical scheme:
The thigh-bone internal support device that is used for the treatment of femur head necrosis mainly is made of the support component and the operating mechanism that support body, be installed on the support body, described support body has the cylindrical shell of a termination for design, cylinder lumen and termination inner chamber connect by throat, design is useful on and promotes the ossified circulation port of bone filler in the cylindrical shell on the barrel wall, described support component evenly is provided with by the arc shaped blade that is no less than 3 and constitutes, blade pass is crossed hinge and is installed on the termination of cylindrical shell with can upwards rotating expansion, handle expansion by operating mechanism, support component launches whole one-tenth umbrella.
In technique scheme, support body and have this version of cylindrical shell of a termination except being designed to, also can be designed to other version, as the supporting structure form.But top-priority version has the cylindrical shell of termination for design.Throat between cylinder lumen and the termination inner chamber can be used for installing and handles the support component expansion to increase the operating mechanism of Area of bearing, and operating mechanism preferably is installed in throat by the motion thread pair.In upper end design the positioning supports groove is arranged as the cylindrical shell termination of supporting body, arc shaped blade as supporting member is installed in as within upper end, the cylindrical shell termination location and installation groove that supports body by hinge deployablely, can upwards turn to the angle that becomes to be not more than 90 degree with the eyelid retractor body axis.Support component also can be designed to other multiple versions except this version, as slide vane structure etc., but top-priority version is served as reasons and can upwards be rotated the version that integral body that unfolded arc shaped blade constitutes becomes umbrella.The design of said blade tail end has that the manipulation effect structural member with operating mechanism is complementary makes the unfolded structure of blade rotation.
In such scheme, said operating mechanism constitutes its unfolded manipulation effect structural member, manipulation drive mechanism spare and manipulation enforcement structural member by acting on support component, is fixedly mounted on and supports on the body.The manipulation effect structural member of operating mechanism can be designed to up big and down small tapered cap, handle drive mechanism spare and be the threaded manipulation straight-bar of design, handling and implementing structural member is to be provided with the manipulation nut of pulling structure, handles straight-bar one end and connects with tapered cap, and the other end connects with the manipulation nut.Operating mechanism by handle on the straight-bar screw thread be positioned at screw thread pair that the female thread that supports body cylindrical shell throat constitutes and be fixedly mounted on the throat that cylinder lumen and termination inner chamber connect.The specific constructive form of operating mechanism has various ways.
Interior eyelid retractor member of formation and the contacted outer surface of femur can be made roughening and handle, and interior eyelid retractor member of formation can be made by the titanium alloy material.
The thigh-bone internal support device that the present invention discloses, when implanted unit bone, when promptly being in non-working condition, its volume is less, when being in user mode behind the implanted unit bone, is unfolded under the manipulation of operating mechanism, its Area of bearing has obtained increasing greatly, increase the contact area with the femoral head subchondral bone, good supporting role has been played at position a little less than the book of femur, effectively prevented collapse of the femoral head.And thigh-bone internal support device of the present invention, because its volume when implanting is little, the core decompression passage of producing on femoral head, the neck is also just less, therefore by the core decompression passage it is implanted, little to femoral head, the structural deterioration of neck matter, operation wound is little.Thigh-bone internal support device of the present invention is as being processed with a plurality of apertures on the barrel wall that supports body.In the cylindrical shell cavity volume that supports body, need insert usually and make osseous tissue or the artificial bone-filling material that the core decompression passage takes off.Circulation port on the eyelid retractor barrel wall helps the inside and outside osseous tissue physiology circulation of cylindrical shell, and the ossified and freshman bone tissue's eyelid retractor inner barrel of growing on every side of the osseous tissue filler that promotes cylindrical shell to be implanted into is accelerated the pathological changes reparation.The roughening processing has all been carried out at thigh-bone internal support device of the present invention, its member of formation position that contacts with osseous tissue.Rough surface is handled and have been increased contact area, helps the fusion of eyelid retractor and surrounding bone tissue, on every side the freshman bone tissue eyelid retractor surface of can growing into.Eyelid retractor and bony fusion on every side helped the capital mechanical property of restoration and reconstruction in these technical measures that the present invention takes all helped.
Simultaneously, the present invention adopts titanium alloy material to make, and titanium alloy is nontoxic, non-carcinogenesis, and good biocompatibility, implanting can not influence the later stage and accept MRI and check.
The present invention is the contribution of femoral head necrosis therapeutic technological progress, the eyelid retractor of the Area of bearing when providing a kind of Area of bearing when the user mode to be far longer than its implanted unit bone, the position that femoral head need be supported obtains good support reinforcing, and can not cause very big infringement to the femoral head sclerotin again, thereby the invention thought that the femoral head necrosis therapeutic effect is greatly enhanced because of making the core decompression passage.The concrete structure of thigh-bone internal support device is not a topmost inventive point of the present invention.
Four, description of drawings
Fig. 1 is the off working state structural representation of an embodiment of thigh-bone internal support device of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure sketch map.
Fig. 3 is the plan structure sketch map of Fig. 1.
Fig. 4 is the structural representation of looking up of Fig. 1.
Fig. 5 is the structural representation under the interior eyelid retractor duty among Fig. 1.
Fig. 6 is that the B-B of Fig. 2 is to the sectional structure sketch map
Fig. 7 is the plan structure sketch map of Fig. 2.
Fig. 8 is the structural representation of looking up of Fig. 2.
Fig. 9 is the partial structurtes sketch map of Fig. 6.
Five, the specific embodiment
Embodiment
The concrete structure of thigh-bone internal support device is shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5.Thigh-bone internal support device constitutes by supporting body, support component and operating mechanism.Said support body is for designing the cylindrical shell 2 that a termination 1 is arranged, and described termination is used to install support component.The support body is a cavity body structure, and its cylinder lumen and termination inner chamber connect by a throat 3, and throat is processed with motion thread, and design has some circulation ports 4 of promoting that cylinder chamber internal skeleton tissue filler is ossified of being used on the barrel wall.Said support component is made of 5 arc shaped blades 5 that evenly are provided with, each blade all can upwards rotate between the positioning supports groove that is installed in upper end, cylindrical shell termination by hinge with launching, non-working condition is positioned at the blade tail end of hinge top, design has the structure 6 that matches and make mounted blade with tapered cap 7 operation effect structural planes as manipulation effect structural member, upwards rotatable 85 degree of blade, whole mounted blades, the whole one-tenth of support component umbrella.The angle that blade upwards rotates can be adjusted according to the needs of treatment.Said operating mechanism makes blade upwards rotate unfolded up big and down small tapered cap 7, constitute as the manipulation straight-bar 8 of handling drive mechanism spare with as handling the nut 9 of implementing structural member by acting on the blade tail end, an end of handling straight-bar connects surely with tapered cap, the other end connects with the manipulation nut, handle to design on the straight-bar screw thread that constitutes screw thread pair with the nut coupling that is positioned at cylindrical shell throat is arranged, nut is a hexagonal socket nut, and operating mechanism is installed in the throat that cylinder lumen and termination inner chamber connect by screw thread pair.Interior eyelid retractor member of formation and the contacted outer surface of shaft of femur have all carried out the roughening processing, and the member of formation of interior eyelid retractor is all made by the titanium alloy material.
Thigh-bone internal support device of the present invention uses operating principle as follows: produce the core decompression passage at the capital affected area of patient earlier, by kit the focus osseous tissue is removed, and then with thigh-bone internal support device in core decompression passage implanted unit bone, after being in place, rotate and handle straight-bar by inner hexagon spanner and fix hexagonal socket nut, under the effect of screw thread transmission, handling straight-bar drive tapered cap moves downward, the tapered cap that moves downward is by its manipulation effect structural plane that matches with the blade tail end, handle blade and upwards rotate expansion, whole one-tenth umbrella after mounted blade puts in place is tightened hold-down nut then and is made support component keep the shape of support works state.The blade supporting surface of support component is faced toward the distal femoral surface that needs to strengthen support, in the eyelid retractor cylindrical shell, insert making core decompression passage then and take off osseous tissue, the block bone that making core decompression passage takes off is filled out the distal femoral surface that is implanted in the barrel port place, and fixed, the support component that is positioned at femur has produced supporting role to the position that femoral head need support, the femoral head mechanical property is rebuild and is formed, and has effectively prevented the generation of collapse of the femoral head.
The specific embodiment of the present invention is not limited to embodiment and the described form of accompanying drawing, and those skilled in the art also can design other and implements specific constructive form of the present invention not paying creatively work, but this still belongs to protection scope of the present invention.
Claims (8)
1. thigh-bone internal support device that is used for the treatment of femur head necrosis, it is characterized in that mainly comprising the support body, be installed in the support component and the operating mechanism that support on the body, described support body has the cylindrical shell of a termination for design, cylinder lumen and termination inner chamber connect by throat, design is useful on and promotes the ossified circulation port of bone filler in the cylindrical shell on the barrel wall, described support component evenly is provided with by the arc shaped blade that is no less than 3 and constitutes, blade pass is crossed hinge and is installed on the termination of cylindrical shell with can upwards rotating expansion, handle expansion by operating mechanism, support component launches whole one-tenth umbrella.
2. the thigh-bone internal support device that is used for the treatment of femur head necrosis as claimed in claim 1 is characterized in that said support blade can upwards turn to the angle that becomes to be not more than 90 degree with the eyelid retractor body axis.
3. the thigh-bone internal support device that is used for the treatment of femur head necrosis as claimed in claim 2, what it is characterized in that the design of said blade tail end has that manipulation effect structural member with operating mechanism is complementary makes the unfolded structure of blade rotation.
4. the thigh-bone internal support device that is used for the treatment of femur head necrosis as claimed in claim 3, it is characterized in that said operating mechanism is made of manipulation effect structural member, manipulation drive mechanism spare and manipulation enforcement structural member, an end of handling drive mechanism spare connects with manipulation effect structural member, the other end is implemented structural member with manipulation and is connected, and is fixedly mounted on and supports on the body.
5. the thigh-bone internal support device that is used for the treatment of femur head necrosis as claimed in claim 4, the manipulation effect structural member that it is characterized in that operating mechanism is up big and down small tapered cap, handling drive mechanism spare is the transmission straight-bar that is processed with motion thread, handle implementing structural member is the nut that is provided with rotational structure, and operating mechanism is fixedly mounted on the throat that cylinder lumen and termination inner chamber connect by the screw thread on the transmission straight-bar.
6. as claim 1 or 2 or 3 or the 4 or 5 described thigh-bone internal support devices that are used for the treatment of femur head necrosis, the composition member of eyelid retractor and the contacted outer surface of diaphysis are the matsurface through the roughening processing in it is characterized in that.
7. as claim 1 or 2 or 3 or the 4 or 5 described thigh-bone internal support devices that are used for the treatment of femur head necrosis, the composition member of eyelid retractor is made by the titanium alloy material in it is characterized in that.
8. the thigh-bone internal support device that is used for the treatment of femur head necrosis as claimed in claim 7, the composition member of eyelid retractor is made by the titanium alloy material in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100212203A CN100394898C (en) | 2005-07-06 | 2005-07-06 | Internal support device for treating femoral head necrosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100212203A CN100394898C (en) | 2005-07-06 | 2005-07-06 | Internal support device for treating femoral head necrosis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1709206A CN1709206A (en) | 2005-12-21 |
| CN100394898C true CN100394898C (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100212203A Expired - Fee Related CN100394898C (en) | 2005-07-06 | 2005-07-06 | Internal support device for treating femoral head necrosis |
Country Status (1)
| Country | Link |
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| CN (1) | CN100394898C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342100B (en) * | 2008-08-25 | 2010-10-13 | 中国人民解放军第二○八医院 | Inner support false body of femoral head |
| TWI413504B (en) | 2009-12-29 | 2013-11-01 | Ind Tech Res Inst | Bone repairing kit |
| CN101999926A (en) * | 2010-12-04 | 2011-04-06 | 兰州西脉记忆合金股份有限公司 | Umbrella shaped memory alloy support in femoral head |
| CN102824208A (en) * | 2011-06-16 | 2012-12-19 | 王坤正 | Nickel-titanium shape memory alloy umbrella-titanium mesh femoral head internal supporting device |
| CN102319128A (en) * | 2011-09-30 | 2012-01-18 | 李峰 | Implantable bone support |
| CN104688391B (en) * | 2015-03-17 | 2017-03-01 | 苏州瑞华医院有限公司 | A kind of mesh-supported device for treating femur head necrosiss |
| CN104814814B (en) * | 2015-03-17 | 2017-01-25 | 苏州瑞华医院有限公司 | Supporting device for treatment of femoral head necrosis |
| CN104720884A (en) * | 2015-03-17 | 2015-06-24 | 苏州瑞华医院有限公司 | Support used for femoral head necrosis treatment |
| CN106308915B (en) * | 2016-11-03 | 2018-11-13 | 河北医科大学第三医院 | A kind of jack-up device for resetting collapsed fracture block |
| CN106730072B (en) * | 2017-03-15 | 2023-08-11 | 四川大学 | Pressure relief nail in bone |
| CN107874824B (en) * | 2017-12-27 | 2024-02-02 | 李锋 | Marrow core supporter and pushing device thereof |
| CN111513897B (en) * | 2020-05-08 | 2024-10-15 | 四川大学华西医院 | Minimally invasive implantation tool suitable for memory alloy orthopedic implant |
| CN112773517B (en) * | 2020-12-30 | 2023-01-13 | 四川大学华西医院 | Orthopedic operation auxiliary device |
| CN114259288B (en) * | 2021-12-30 | 2024-04-16 | 孙秀钦 | Internal bracing type fixing device for fracture of femoral neck |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4632101A (en) * | 1985-01-31 | 1986-12-30 | Yosef Freedland | Orthopedic fastener |
| US4721103A (en) * | 1985-01-31 | 1988-01-26 | Yosef Freedland | Orthopedic device |
| CN2455209Y (en) * | 2000-03-06 | 2001-10-24 | 马长生 | Titanium net for human cranipolasty |
| US6780185B2 (en) * | 2000-04-10 | 2004-08-24 | Synthes (U.S.A.) | Osteosynthetic anchoring member |
-
2005
- 2005-07-06 CN CNB2005100212203A patent/CN100394898C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4632101A (en) * | 1985-01-31 | 1986-12-30 | Yosef Freedland | Orthopedic fastener |
| US4721103A (en) * | 1985-01-31 | 1988-01-26 | Yosef Freedland | Orthopedic device |
| CN2455209Y (en) * | 2000-03-06 | 2001-10-24 | 马长生 | Titanium net for human cranipolasty |
| US6780185B2 (en) * | 2000-04-10 | 2004-08-24 | Synthes (U.S.A.) | Osteosynthetic anchoring member |
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| Publication number | Publication date |
|---|---|
| CN1709206A (en) | 2005-12-21 |
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