CN201840550U - Inner reticular support used for femoral head necrosis - Google Patents
Inner reticular support used for femoral head necrosis Download PDFInfo
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- CN201840550U CN201840550U CN2010202833869U CN201020283386U CN201840550U CN 201840550 U CN201840550 U CN 201840550U CN 2010202833869 U CN2010202833869 U CN 2010202833869U CN 201020283386 U CN201020283386 U CN 201020283386U CN 201840550 U CN201840550 U CN 201840550U
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- femoral head
- eyelid retractor
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Abstract
The utility model relates to an inner reticular support used for femoral head necrosis. The inner reticular support is a hollow member which is made of titanium-nickel memory alloy and is of a reticular structure; the shape of the member is the same as the shape of an internal medullary cavity of the femoral head; and the size of the member can be scaled down (different models of the inner reticular supports can be selected according to the diameter of the internal medullary mass of the femoral neck of a patient) according to the appropriate proportion based on the volume of the internal medullary cavity of the femoral head as required practically. The inner reticular support made of the memory metal can be deformed when the temperature is changed, so as to be convenient for implantation; after the implantation, a hollow inner cavity of the inner reticular support is filled by implanting the bone, so that the inner reticular support and the bone are integrated into a whole, the effective supporting for the collapsed femoral head is realized and strengthened, the collapse and the necrosis of the femoral head can be prevented or postponed, the time and frequency of displacing joint prosthesis can be avoided or postponed, the pain of the patient is relieved, the economic burden of the patient is reduced, and the life quality of the patient is improved.
Description
Technical field
The present invention relates to a kind of femoral head supporting member, relate in particular to a kind of interior netted eyelid retractor that is used for femur head necrosis.
Background technology
Ischemic necrosis of femoral head (avascular necrosis of the femoral head, anfh) be because Different types of etiopathogenises is destroyed capital blood confession, make the dead caused pathological process of active component (comprising osteocyte, medullary cell and adipose cell) of bone, body carries out the nature reparation to the necrotic area subsequently, the necrotic bone girder is progressively absorbed, the femoral head mechanical strength descends, collapse-deformation, thus cause the major injury of hip joint.The I phase of femur head necrosis, II phase are downright bad early stage, it is circular that femoral head keeps, cartilage " medicated cap shape " occur with subchondral bone and separates, occur between the cracked sequestrum, existing unstable between interior necrotic bone of head and the sclerotic bone, under the heavy burden state, cartilage bears ABNORMAL STRESS, accelerates the regression of articular surface, and articular surface subsides.Be downright bad late period more than femur head necrosis III, IV phase, femoral head necrosis subsides.
Treatment to femur head necrosis at present has three kinds of patterns: previous treatment, be etiological treatment, find the cause of disease of femur head necrosis, remove the cause of disease from treating with the source, this method is the most thorough, and is ideal, but in the cause of disease of femur head necrosis, clear and definite or indefinite a lot, can't determine that etiological treatment is not known where to begin; Treatment midway promptly to Symptomatic patient, is taked certain method, is intervened, and prevents from or delay to subside, and postpones or avoid carrying out the prosthetic replacement, and this is the emphasis place of research at present; The later stage rescue therapy also is helpless and Therapeutic Method that take, and femur head necrosis is subsided, and has only the joint replacement of passing through.
To enclosing the principle that the option share head necrosis that subsides treats be: what subside is early stage, and the elasticity of cartilage is fair, and this moment is by good bone grafting, and is fixing, subsides and can effectively correct, and through the decompression duct, removes sequestrum, restarts the reparation potential of bone; Bone grafting-promotion is repaired, and correction is subsided, and improves instability, improves the capital anti-ability of subsiding, and strengthens its intensity.
The patent of invention of patent No. ZL200810111686.6 discloses a kind of eyelid retractor that is used for femur head necrosis, its surface design is spongy for what loosen, the aperture is the 100-800 micron, axial portions is solid, but this eyelid retractor aperture is less, and the bone trabecula of growing into is comparatively very thin, and the effect of bearing pressure is limited, and axial portions is solid, the more interior space of limited marrow that taken; Moreover this eyelid retractor is in the preoperative and postoperative constancy of volume, implants difficulty, and support function is not good enough, so very limited to preventing or delay the effect that femur head necrosis subsides.
Summary of the invention
The objective of the invention is to propose a kind of interior netted eyelid retractor that is used for femur head necrosis, it can implant pulp cavity easily, and realize the capital effective support of subsiding, prevent or delay the collapse of the femoral head necrosis, avoid or delay to carry out prosthetic replacement's time and number of times, thereby overcome deficiency of the prior art.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of interior netted eyelid retractor that is used for femur head necrosis, it is characterized in that: in described netted eyelid retractor for constitute by ti-ni shape memory alloy, have a cancellated hollow out member, the profile of this member and femoral head, cervical region intramedullary cavity are consistent, and its volume is less than or equal to femoral head intramedullary cavity volume.
Say further: the alloy wire trend of the corresponding bigelow's septum of netted eyelid retractor position is provided with from bottom to top in described, to form and the similar support column of bigelow's septum place bone trabecula shape.
Described in netted eyelid retractor serve as reasons the head, the integrated formation of body two parts member.
Netted eyelid retractor be can be in temperature time typing more than or equal to 500 ℃ in described, and can compress when temperature is less than or equal to 10 ℃, and at temperature finalize the design member of form of answer during more than or equal to 40 ℃.
This case inventor is at many deficiencies of existing femoral head bracing or strutting arrangement, through studying for a long period of time and putting into practice, the spy designs the interior netted eyelid retractor that is used for femur head necrosis of the present invention, it adopts memorial alloy to be made, by head, body one, profile is consistent with the femoral head intramedullary cavity, and size is then proportionally suitably dwindled.Should adopt ti-ni shape memory alloy to make by interior netted eyelid retractor, and this marmem has following characteristic, (with this kind alloy make all model, in temperature time typing more than or equal to 500 ℃, deformation can take place when temperature is less than or equal to 10 ℃, compression, reduce volume, be convenient to implant, when returning to more than or equal to 40 ℃, temperature can reply the typing form, that is: utilize the one way memory effect of this alloy: under lower temperature, be out of shape the shape before the heating back recoverable deformation); This be because Ni-Ti alloy different more than 40 ℃ with the crystal structure below 40 ℃, when temperature 40 ℃ (these that is to say so-called " transformation temperature ") when changing up and down, memorial alloy will contraction or expansion, makes its form change.
The interior netted eyelid retractor that is used for femur head necrosis of the present invention can be at high-temperature shaping more than 500 ℃ after making molding.When in operation process, using, can at first soak with the frozen water below 10 ℃, make it according to operation needs compression volume, be easy to insert the femoral head pulp cavity, insert the operation finish after, available warm saline (preferred 40 ℃) more than 40 ℃ soaks femoral head, make the structure when netted eyelid retractor can be replied typing in this, be filled in femoral head, in the pulp cavity of neck and tuberosity part, the femoral head that subsides or be about to subside is played the effect of support, can implant from body spongy bone or artificial bone at the eyelid retractor inner chamber thereafter, after osteogenesis is filled in the pulp cavity, wire netting and sclerotin " are built " and are one in the pulp cavity, strengthen capital supporting role.
The above-mentioned operating process of inserting is specially: adopt equipment such as drill bit to bore tunnel to femoral head osteonecrosis district in neck of femur, and under tunnel osteonecrosis district cartilage, insert described in netted eyelid retractor, eyelid retractor inner chamber usefulness autologous ilium spongy bone bone grafting.This operation meets theoretical basis and the treatment trend that up-to-date femur head necrosis is protected the hip treatment, the cleaning sequestrum, improve blood for, keep stable, prevention to subside, can support for enough mechanics in the prerequisite of subsiding, effectively intervene or delay and subside, accomplish that before subsiding, prevention is subsided, when occurring subsiding, in time correct and subside, in the hope of reaching patient self hip joint the most desirable for a long time alive purpose.
Compared with prior art, beneficial effect of the present invention is: this interior netted eyelid retractor that is used for femur head necrosis is the network structure that adopts memory metal to make, by changing temperature, can make it to take place deformation, be convenient to implant, implant the back and pulp cavity and subsidence area are played the expansion supporting role by recovering shape, can fill by its hollow cavity bone grafting, netted eyelid retractor and sclerotin form one in making, and realize and strengthen capital effective support to subsiding, prevent or delay the collapse of the femoral head necrosis, avoid or delay to carry out prosthetic replacement's time and number of times, reduce the patient suffering, reduce the financial burden, improve patients ' life quality.
Description of drawings
Below in conjunction with drawings and the specific embodiments content of the present invention is elaborated.
Fig. 1 is a kind of structural representation that is used for the interior netted eyelid retractor of femur head necrosis in the specific embodiment of the invention;
Fig. 2 is the application state sketch map that is used for the interior netted eyelid retractor of femur head necrosis shown in Figure 1.
The specific embodiment
Shown in Fig. 1～2, this interior netted eyelid retractor 1 that is used for femur head necrosis be constitute by ti-ni shape memory alloy, have cancellated hollow out member (promptly, webmaster shape member), the profile of this member is consistent with 2 of femorals head, neck and bone tuberosity part intramedullary cavity, and its size can be dwindled by proper proportion according to femoral head, femur head and neck and bone tuberosity part intramedullary cavity volume because of actual needs.
Say further, described in netted eyelid retractor serve as reasons 12, the member of body 11 integrated formation, its middle part is provided with the bone trabecular support column 13 in similar bigelow's septum place in corresponding bigelow's septum position.
Use above-mentioned in the process that undergos surgery of netted eyelid retractor as follows:
1) intended application iconography technology is made a definite diagnosis femur head necrosis before the art, whether clear and definite femoral head articular surface subsides. confirm that simultaneously femur head necrosis is in the first and second phase, use the model that surgical template is confirmed the position of central tunnel and estimated prosthese, be the position of guaranteeing that central tunnel is just being confirmed, locate with guide pin prosthese location and G type arm in the art;
2) routine appears lateral side of femur cortex, confirms the central tunnel line: the downright bad sick line that decreases district center to the about 1cm lateral side of femur cortex in lesser trochanter of femur top;
3) inward turning 15 degree in joint determine that to eliminate the top rake of neck of femur itself the middle coronalplane of lateral side of femur is determined entry point;
4) after the boring guide pin is correctly inserted,, reach about 5mm under the femoral head cartilage with the reaming of diameter 10mm core drill;
5) desirable biopsy (selection operation);
6) depth measurement determines to insert the eyelid retractor model;
7) tapping preparation;
8) eyelid retractor is implanted:
After anaesthetizing successfully, the patient is placed on the bone surgery bed that can have an X-rayed, 30 ° of Ipsilateral hip bed hedgehoppings, the trouble limb is kept abduction inward turning position and is fixed the routine disinfection drape;
The 1cm place is about the outside center line stringer otch of 5cm downwards under greater trochanter, cut lateral fascia, separate vastus lateralis along muscle fiber direction passivity, expose near end of thighbone outside cortex, under C arm X line machine monitors, 1 piece of guide pin is drilled into the osteonecrosis district central authorities of subchondral bone through neck of femur, note not penetrating articular surface, opening the lateral side of femur cortical bone with the hollow boring bit of diameter 10mm along the guide pin brill reaches under the femoral head, it is standby to take out core drill internal skeleton bolt, use the interior drill bit that enlarges of the femoral head that can expand instead and expand marrow,, withdraw from drill bit through neck of femur removing osteonecrosis district sequestrum along the manual rotation of guide pin, note not striking with a hammer, avoid breaking through the femoral head articular surface;
Get suitable interior netted eyelid retractor, soak with brine ice below 10 ℃, to insert behind its compressional deformation, the perspective guarantee to insert put in place after, pour into pulp cavity with 40 ℃ of warm salines, netted eyelid retractor is replied prototype in making, homonymy ilium spongy bone is got in the support zone that subsides, in spongy bone is placed in the netted eyelid retractor, filling is tight, the mesh-supported frame afterbody femoral cortex tunnel bone bolt close packed of before having taken off; The layer-by-layer suture wound is to finishing operation technique.
Through above-mentioned operation, after osteogenesis is filled in the pulp cavity, wire netting and sclerotin " are built " and are one in the pulp cavity, reinforcement is to capital supporting role, prevent or delay the collapse of the femoral head necrosis, avoid or delay to carry out prosthetic replacement's time and number of times, reduce the patient suffering, reduce the financial burden, improve patients ' life quality.
The foregoing description is the present invention's preferred embodiment, only is the usefulness of explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. interior netted eyelid retractor that is used for femur head necrosis, it is characterized in that: in described netted eyelid retractor for constitute by ti-ni shape memory alloy, cancellated hollow out member arranged, the profile of this member is consistent with the femoral head intramedullary cavity, and volume is less than or equal to femoral head intramedullary cavity volume.
2. the interior netted eyelid retractor that is used for femur head necrosis according to claim 1, it is characterized in that: the alloy wire trend of the corresponding bigelow's septum of netted eyelid retractor position is provided with from bottom to top in described, to form and the similar support column of bigelow's septum place bone trabecula shape.
3. the interior netted eyelid retractor that is used for femur head necrosis according to claim 1 and 2 is characterized in that: the serve as reasons member of head, body, the integrated formation of two parts of netted eyelid retractor in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202833869U CN201840550U (en) | 2010-08-06 | 2010-08-06 | Inner reticular support used for femoral head necrosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202833869U CN201840550U (en) | 2010-08-06 | 2010-08-06 | Inner reticular support used for femoral head necrosis |
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| CN201840550U true CN201840550U (en) | 2011-05-25 |
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| CN2010202833869U Expired - Fee Related CN201840550U (en) | 2010-08-06 | 2010-08-06 | Inner reticular support used for femoral head necrosis |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083115A (en) * | 2011-11-08 | 2013-05-08 | 上海交通大学医学院附属第九人民医院 | Fiber porous titanium rod for repair of ischemic necrosis of femoral head |
| CN103519922A (en) * | 2013-10-22 | 2014-01-22 | 张海宁 | Fusion device for treating femoral head necrosis |
| CN104665906A (en) * | 2013-11-26 | 2015-06-03 | 财团法人工业技术研究院 | Bionic fixing device |
| CN104688390A (en) * | 2015-03-17 | 2015-06-10 | 苏州瑞华医院有限公司 | Net-shaped supporting device |
| 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 |
| CN104814814A (en) * | 2015-03-17 | 2015-08-05 | 苏州瑞华医院有限公司 | Supporting device for treatment of femoral head necrosis |
| CN104970903A (en) * | 2014-04-11 | 2015-10-14 | 宝楠生技股份有限公司 | Femoral stem for artificial hip joint |
| CN106388980A (en) * | 2016-11-24 | 2017-02-15 | 河南理工大学 | Femoral head interior support device |
| US9770276B2 (en) | 2013-11-26 | 2017-09-26 | Industrial Technology Research Institute | Bionic fixing apparatus |
| US10064737B2 (en) | 2015-12-07 | 2018-09-04 | Industrial Technology Research Institute | Implant device for osseous integration |
| US10507041B2 (en) | 2013-11-26 | 2019-12-17 | Industrial Technology Research Institute | Bionic fixing apparatus and apparatus for pulling out the same |
| CN111134905A (en) * | 2019-12-30 | 2020-05-12 | 云南省第一人民医院 | Artificial hip joint and preparation method thereof |
| CN111803243A (en) * | 2020-03-04 | 2020-10-23 | 赵滨 | Module for filling and supporting femoral head necrosis area and manufacturing and using method thereof |
-
2010
- 2010-08-06 CN CN2010202833869U patent/CN201840550U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083115A (en) * | 2011-11-08 | 2013-05-08 | 上海交通大学医学院附属第九人民医院 | Fiber porous titanium rod for repair of ischemic necrosis of femoral head |
| CN103519922A (en) * | 2013-10-22 | 2014-01-22 | 张海宁 | Fusion device for treating femoral head necrosis |
| US9770276B2 (en) | 2013-11-26 | 2017-09-26 | Industrial Technology Research Institute | Bionic fixing apparatus |
| CN104665906A (en) * | 2013-11-26 | 2015-06-03 | 财团法人工业技术研究院 | Bionic fixing device |
| US10507041B2 (en) | 2013-11-26 | 2019-12-17 | Industrial Technology Research Institute | Bionic fixing apparatus and apparatus for pulling out the same |
| US10357297B2 (en) | 2013-11-26 | 2019-07-23 | Industrial Technology Research Institute | Bionic fixing apparatus |
| CN104970903A (en) * | 2014-04-11 | 2015-10-14 | 宝楠生技股份有限公司 | Femoral stem for artificial hip joint |
| 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 |
| 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 |
| CN104814814A (en) * | 2015-03-17 | 2015-08-05 | 苏州瑞华医院有限公司 | Supporting device for treatment of femoral head necrosis |
| CN104688390A (en) * | 2015-03-17 | 2015-06-10 | 苏州瑞华医院有限公司 | Net-shaped supporting device |
| US10064737B2 (en) | 2015-12-07 | 2018-09-04 | Industrial Technology Research Institute | Implant device for osseous integration |
| CN106388980A (en) * | 2016-11-24 | 2017-02-15 | 河南理工大学 | Femoral head interior support device |
| CN106388980B (en) * | 2016-11-24 | 2018-04-06 | 河南理工大学 | A kind of femoral head inner supporting device |
| CN111134905A (en) * | 2019-12-30 | 2020-05-12 | 云南省第一人民医院 | Artificial hip joint and preparation method thereof |
| CN111134905B (en) * | 2019-12-30 | 2021-12-07 | 云南省第一人民医院 | Artificial hip joint and preparation method thereof |
| CN111803243A (en) * | 2020-03-04 | 2020-10-23 | 赵滨 | Module for filling and supporting femoral head necrosis area and manufacturing and using method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20110806 |