CN100394898C - Thigh-bone internal support device - Google Patents
Thigh-bone internal support device 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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- femoral head
- thigh
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- internal support
- bone
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Abstract
The present invention discloses a femoral head internal supporter for treating femoral head necrosis, which is mainly composed of a supporter body, a supporting component and a control mechanism, wherein the supporting component and the control mechanism are installed on the supporter body; the supporting component installed at one end of the supporter body is in a structure that the supporting area can be unfolded and enlarged, and the supporting component is unfolded under the control of the control mechanism; the supporting component which can be composed of no less than three arced blades is integrally in an operating state of an umbrella shape after unfolded. Compared with a femoral head internal supporter of the prior art, the supporting area of the femoral head internal supporter of the present invention can be greatly enlarged after the femoral head internal supporter is implanted into a femoral head, the mechanical performances of the femoral head are nicely reconstructed, and thereby, the femoral head internal supporter of the present invention can effectively prevent the femoral head from collapsing and can not greatly damage the femoral head owing to the fabrication of a marrow core pressure reducing channel on the femoral head. The present invention which is disclosed can greatly improve the cure rate of the femoral head necrosis and alleviate a patient's pain and economic burden.
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 | Thigh-bone internal support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100212203A CN100394898C (en) | 2005-07-06 | 2005-07-06 | Thigh-bone internal support device |
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 | Thigh-bone internal support device |
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| Country | Link |
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| CN (1) | CN100394898C (en) |
Families Citing this family (13)
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
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 |
-
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1709206A (en) | 2005-12-21 |
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Granted publication date: 20080618 Termination date: 20110706 |