CN202146350U - Expansion-fixed femoral head internal support body - Google Patents
Expansion-fixed femoral head internal support body Download PDFInfo
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- CN202146350U CN202146350U CN201120202828U CN201120202828U CN202146350U CN 202146350 U CN202146350 U CN 202146350U CN 201120202828 U CN201120202828 U CN 201120202828U CN 201120202828 U CN201120202828 U CN 201120202828U CN 202146350 U CN202146350 U CN 202146350U
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Abstract
An expansion-fixed femoral head internal support body comprises a supporting main body and an internal expansion screw, wherein the supporting main body is sleeved outside the internal expansion screw; the top of the supporting main body is arched; the supporting main body is provided with radial expansion fins consisting of a plurality of fins, and an expansion slot is formed between every two fins; the internal expansion screw is provided with an expansion section; after the internal expansion screw is embedded into the supporting main body, the expansion section is capable of distracting the expansion fins; and the supporting main body is in threaded connection with the internal expansion screw. After being embedded to a predetermined position under the collapse part of the femoral head, the expansion-fixed femoral head internal support body is fixed under the femoral head or in the bone tissue surrounding the femoral neck through the expansion of own partial structure; and the expansion-fixed femoral head internal support body provided in the utility model does not need the mechanical basis of taking the lower cortical bone of the greater tuberosity of the femur as a support, so that the support body can be manufactured to be short to leave an osteotomy space between the smaller tuberosity and the greater tuberosity to later total hip replacement arthroplasty without being taken out deliberately.
Description
Technical field
This utility model relates to a kind of supporter, a specifically a kind of expansion resected femur inner supporting body that is used in particular for femoral head cartilaginous tissue depression of hip joint treatment usefulness.
Background technology
The case of ischemic necrosis of femoral head has the trend of rising in recent years; The method of treatment ischemic necrosis of femoral head is a lot; Comprise medicine and operative treatment; Indication and curative effect are also not the same, and wherein commonly used have femoral head medulla decompression, free fibula transplantation art and an artificial total hip arthroplasty etc.Medulla decompression and free fibula transplantation art are suitable for I phase and II option share head necrosis, and the long term follow-up effective percentage is not very desirable, but also have the possibility that femoral head is further downright bad, subside; Artificial total hip arthroplasty is applicable to the patient of femur head necrosis in late period; Operative effect is more satisfactory, yet artificial joint has certain life-span; Average about 15 ~ 20 years; In case worn takes place with loosening, for young patient, has to face once more even joint revision procedure repeatedly.Some medical workers are in to early stage ANFH treatment; For improve postoperative long periods of treatment effective percentage, wound to the patient reduces to perform the operation; Carried out the minimally-invasive treatment of ANFH; Purpose is further to improve the therapeutic effect of early stage femur head necrosis, stops pathological development." bone trabecula metal " AVN femoral head supporter by U.S. Zimer company releases is processed by metal tantalum; Cellular three-dimensional club shaped structure with human body spongy bone construction features; Porosity is 75 ~ 80%; Elastic modelling quantity and human body sclerotin are approaching, getting out under the Ipsilateral femoral greater trochanter below through collapse of the femoral head place in hole, a tunnel, the femoral head supporter are implanted so that structural support is carried out in the femur head necrosis zone during operation; Avoid subsiding of joint loading surface, and pair potential of ANFH zone revascularization is arranged; Subside though this technology can not be cured ANFH property fully, can delay the symptom process, postpone the time carry out artificial full hip-joint replacement, reduce following joint and overhaul probability, this technology has come into operation surplus in the of 10 year and has received excellent curative.This technical deficiency part is to implant the back and retreats and must make to such an extent that sufficient length is arranged implant so that its tail end is fixed in cortical bone place, femoral greater trochanter bottom along implanting the tunnel for preventing implant; This just makes the hole, tunnel that must get out larger diameter earlier again at femoral greater trochanter hypopallium collagen tunnel portal place when going replacement of total hip future again to take out the femoral head supporter, causes wound new under the femoral bone tuberosity thus and might cause local sclerotin degeneration and biomechanics of bone performance to reduce.
The utility model content
The purpose of this utility model provides an a kind of expansion resected femur inner supporting body, this expansion resected femur inner supporting body below implant arriving collapse of the femoral head place behind the precalculated position expansion through self part-structure make supporter be fixed under the femoral head or neck of femur surrounding bone tissue in.
The invention thinking of this utility model is: this utility model expansion resected femur inner supporting body proposes to the defective of prior art; Do not need with femoral greater trochanter bottom cortical bone as the mechanical foundation that supports, therefore can make to such an extent that shortly cut the bone space between big or small tuberosity and needn't painstakingly take out supporter reserve for following row replacement of total hip.
The concrete technical scheme of this utility model is following:
An a kind of expansion resected femur inner supporting body, it comprises supportive body and interior swell fixture; Said supportive body is sheathed on outside the said interior swell fixture; Said supportive body top is an arc; Said supportive body is provided with the radial expansion wing, and the said expansion wing is made up of some fins, forms the expansion slit between each fin; Swell fixture is provided with expansion arc in said, and this expansion arc can strut the said expansion wing after interior swell fixture was inserted supportive body; Said supportive body and interior swell fixture are threaded.
Said supportive body is a cylindrical body, and its expansion wing is positioned at said supportive body middle and lower part and is radial downwards.
The said expansion wing is made up of 2～8 fins, and the expansion slit between each fin is a linear; Said interior swell fixture upper end is provided with external screw thread or the expansion arc outside is provided with external screw thread, and said supportive body inside is provided with the female thread that is complementary with said interior swell fixture external screw thread, and said supportive body top is an enclosed construction.
The said expansion wing is made up of 2～8 fins, and the expansion slit between each fin is a spiral type; Said interior swell fixture upper end is provided with external screw thread or the expansion arc outside is provided with external screw thread, and said supportive body inside is provided with the female thread that is complementary with said interior swell fixture external screw thread, and said supportive body top is an enclosed construction.
Said supportive body top is provided with some bone graftings hole.
The swell fixture expansion arc is the frustum structure in said.
The top that the said expansion wing is positioned at said supportive body upwards is radial; The said expansion wing is made up of 2～8 fins, and the expansion slit between each fin is a linear; The swell fixture afterbody is provided with external screw thread in said, and said supportive body inside is provided with the female thread that is complementary with this external screw thread.
Said expansion wing tip head outside is provided with stop member.
Said supportive body begins upwards to be provided with the radial expansion wing of going up from the middle part, to having the radial expansion wing down.
Said expansion slit of going up between each fin of the expansion wing is a linear; Said expansion slit between each fin of the expansion wing down is a spiral type.
Said supportive body is the three-dimensional porous dictyosome structure that medical metal or bioceramic are processed, and the surface and the internal void of this three-dimensional porous dictyosome connect each other; Pore diameter is 50 μ m～900 μ m.
Said supportive body surface and/or set inside have reinforcement or stiffener.
Said supportive body surface and/or inner whole or local coating have hydroxyapatite coating layer.
Said supportive body diameter 6～20mm, length 15～60mm.
The beneficial effect of this utility model:
1. this utility model expansion resected femur inner supporting body; It comprises: supportive body and interior swell fixture; Said supportive body is the column type body; Supportive body upper end or lower end are provided with the wing that expands more than; The expansion wing each other with the expansion slit separately; The expansion slit has the internal thread hole that cooperates with interior swell fixture along being parallel to the axial direction setting of supportive body or edge and the hand of spiral setting that supportive body axially forms an angle in the supportive body set inside, and interior swell fixture is provided with helicitic texture section and expansion arc; The different sections of swell fixture also can be integrated and becomes the threaded expander section in this helicitic texture section and expansion arc can lay respectively at; Expansion arc will strut the expansion wing on the supportive body when interior swell fixture screws in the internal thread hole in the supportive body, the end that the wing expands thereby expand this moment can since the expansion of diameter push and embed surrounding bone tissue an expansion resected femur inner supporting body is fixed in desired location of living in and can produce displacement again, thus to obtain stablizing in early days of an expansion resected femur inner supporting body.
2. the supportive body of this utility model expansion resected femur inner supporting body adopts medical metal or bioceramic to process three-dimensional porous dictyosome structure; The surface of this three-dimensional porous dictyosome and inner has most the ducts that are interconnected, and supportive body three-dimensional porous dictyosome and sclerotin after implantation closely contact and help the growing into to obtain long-term stability of osteocyte.
3. this utility model expansion resected femur inner supporting body; Considering in operation the extruding of expanding embed around during sclerotin an expansion resected femur inner supporting body and the expansion wing stressed situation, the surface and the set inside of a said expansion resected femur inner supporting body have reinforcement or stiffener.
4. this utility model expansion resected femur inner supporting body in position is provided with the bone grafting hole that holds broken osseous granules of bone grafting or bone mud and is used to fill the broken osseous granules from body or allosome, operation is implanted the back by the time the infiltration of outside osseous tissue is grown into three-dimensional mesh and with the bone grafting hole in the broken osseous granules of filling or bone mud fusion growth can reach after being integral and prevent that long-term effectively this expansion resected femur inner supporting body from the effect that loosening regression is moved taking place.
5. this utility model expansion resected femur inner supporting body, surface all or the part have hydroxyapatite coating layer, this hydroxyapatite coating layer has the function of inducing the osteocyte growth.
6, this utility model expansion resected femur inner supporting body, it uses medical metal or bioceramic to process, so it has good biocompatibility.
7, the supportive body processing method of a said expansion resected femur inner supporting body is: adopt laser or high-power electron beam rapid shaping technique melt molding; Also can bore and mill out needed porous dictyosome with the processing on casting or rough forging of methods such as casting, spark machined, chemical attack, machine drilling cutting; Have good processability, interior swell fixture then adopts conventional mechanical processing method making such as lathe milling machine.
Description of drawings
Fig. 1 is this utility model embodiment 1 decomposing state structural representation;
Fig. 2 is this utility model embodiment 1 assembled state structural representation;
Fig. 3 is this utility model embodiment 2 decomposing state structural representations;
Fig. 4 is this utility model embodiment 2 assembled state structural representations;
Fig. 5 is this utility model embodiment 3 decomposing state structural representations;
Fig. 6 is this utility model embodiment 3 assembled state structural representations;
Fig. 7 is this utility model embodiment 4 decomposing state structural representations;
Fig. 8 is this utility model embodiment 4 assembled state structural representations;
Fig. 9 is this utility model embodiment 5 assembled state structural representations;
Figure 10 is this utility model embodiment 1 user mode reference diagram;
Figure 11 is this utility model embodiment 3 user mode reference diagrams;
Figure 12 is the described three-dimensional porous dictyosome sketch map of this utility model;
Figure 13 is a swell fixture structural representation in this utility model embodiment 6;
Figure 14 is this utility model embodiment 7 decomposing state sketch maps;
Figure 15 is this utility model embodiment 7 assembled state sketch maps;
Figure 16 is this utility model embodiment 8 decomposing state sketch maps;
Figure 17 is this utility model embodiment 8 assembled state sketch maps.
The specific embodiment
Embodiment 1
Like Fig. 1,2, shown in 10, an a kind of expansion resected femur inner supporting body, it comprises supportive body 1a and interior swell fixture 2a; Said supportive body 1a is sheathed on outside the said interior swell fixture 2a; Said supportive body 1a top is an arc; Said supportive body 1a is provided with downward radial expansion wing 3a, and said expansion wing 3a is made up of some fin 31a, forms expansion slit 4a between each fin 31a; Swell fixture 2a is provided with expansion arc 21a in said, and this expansion arc 21a can strut said expansion wing 3a after interior swell fixture 2a inserted supportive body 1a; Said supportive body 1a is connected with interior swell fixture screw thread 2a.Swell fixture expansion arc 21a is the frustum structure in said.
Said supportive body 1a is a cylindrical body, and its expansion wing 3a is positioned at said supportive body 1a middle and lower part and is radial.
Said expansion wing 3a is made up of four fin 31a, and the expansion slit 4a between each fin 31a is a linear; , fin 31a is umbrella when being strutted by said expansion arc 21a;
Said supportive body 1a is the three-dimensional porous dictyosome structure that medical metal or bioceramic are processed, and the surface and the inside of this three-dimensional porous dictyosome have some ducts that are interconnected; Swell fixture 2a upper-end outer surface is provided with external screw thread 22a (external screw thread also can be arranged on the expansion arc outside) in said; Said supportive body 1a top is an enclosed construction, and said supportive body 1a inside is provided with the female thread that is complementary with said interior swell fixture external screw thread 22a.
This utility model surface all has hydroxyapatite coating layer, and this hydroxyapatite coating layer has the function of inducing the osteocyte growth.An above-mentioned expansion resected femur inner supporting body, supportive body surface and inside are provided with reinforcement 30a.
Said supportive body expansion wing closure state diameter 6mm, according to patient's the individual variation suitable dimension in can this scope of corresponding selection, this diameter range is for adapting to the optimum size scope of this utility model structure, length 15mm.Three-dimensional porous dictyosome pore diameter 50 μ m～900 μ m.
This utility model expansion resected femur inner supporting body; Employing has the three-dimensional porous dictyosome structure that the medical metal (also can use bioceramic) of good biocompatibility is processed; The surface of this three-dimensional porous dictyosome and inside have most the ducts that are interconnected; This three-dimensional porous dictyosome and sclerotin closely contact and help the growing into to obtain long-term stability of osteocyte, and three-dimensional porous dictyosome structure is shown in figure 12.This utility model utilizes laser or high-power electron beam rapid shaping technique melt molding to make three-dimensional porous dictyosome, and method is following:
1. the three-dimensional data model of the three-dimensional porous dictyosome of design-build in computer;
2. use professional software that three-dimensional data model is carried out layering, to obtain the outline data of a series of monolayer slices;
3. import above-mentioned serial synusia data to laser or high-power electron beam rapid forming equipment;
4. metal (or pottery) powder of floor height respective thickness when in laser or high-power electron beam rapid forming equipment processing cabin, laying with aforementioned three-dimensional data model layering;
By computer controlled controlling laser beam or high-power electron beam to metal or ceramic powders scans and selectively fusing;
6. repeat aforementioned laying powder, scanning fusing step so that each layer is selected the mutual clinkering one-tenth of the material of fusing integral body;
7. remove the three-dimensional porous dictyosome that not fused powder can obtain required shape and structure after accomplishing the melting process of whole aspects.
At present typical metal rapid shaping process equipment has:
The laser EOSINT M270 metal laser sintering system of Germany EOS company.
The EBM A1 of Sweden ARCAM company and A2 electron beam melting system.
Embodiment 2
Like Fig. 3, shown in 4, an a kind of expansion resected femur inner supporting body, it comprises supportive body 1b and interior swell fixture 2b; Said supportive body 1b is sheathed on outside the said interior swell fixture 2b; Said supportive body 1b top is an arc; Said supportive body 1b is provided with downward radial expansion wing 3b, and said expansion wing 3b is made up of some fin 31b, forms expansion slit 4b between each fin 31b; Swell fixture 2b is provided with expansion arc 21b in said, and this expansion arc 21b can strut said expansion wing 3b after interior swell fixture 2b inserted supportive body 1b; Said supportive body 1b and interior swell fixture 2b are threaded.Said supportive body 1b is a cylindrical body, and its expansion wing 3b is positioned at said supportive body middle and lower part and is radial.
Said expansion wing 3b is made up of four fin 31b, and the expansion slit 4b between each fin 31b is a spiral type; Said supportive body 1b top is provided with four bone grafting holes 5 that hold broken osseous granules of bone grafting or bone mud, and broken osseous granules of this bone grafting or bone mud can obtain in operation in the operating process such as bone, brill bone that cut through necessity.
Said interior swell fixture 2b upper end is provided with external screw thread or the expansion arc outside is provided with external screw thread 22b, and said supportive body 1b top is an enclosed construction, and said supportive body 1b inside is provided with the female thread that is complementary with said interior swell fixture external screw thread.
This utility model expansion resected femur inner supporting body, the three-dimensional porous dictyosome structure of using medical metal to process, method for preparing such as embodiment 1.
Said supportive body expansion wing closure state diameter 12mm, according to patient's the individual variation suitable dimension in can this scope of corresponding selection, this diameter range is for adapting to the optimum size scope of this utility model structure, length 35mm.Three-dimensional porous dictyosome pore diameter 50 μ m～900 μ m.
Embodiment 3
Like Fig. 5, Fig. 6, shown in Figure 11, another expansion resected femur inner supporting body, it comprises supportive body 1c and interior swell fixture 2c; Said supportive body 1c is sheathed on outside the said interior swell fixture 2c; Said supportive body 1c top is an arc; Said supportive body 1c is provided with radial expansion wing 3c upwards, and said expansion wing 3c is made up of some fin 31c, forms expansion slit 4c between each fin 31c; Swell fixture 2c itself is expansion arc in said, and interior swell fixture 2c can strut said expansion wing 3c after inserting supportive body 1c; Said supportive body 1c and interior swell fixture 2c are threaded.
The top that said expansion wing 3c is positioned at said supportive body upwards is radial; Said expansion wing 3c is made up of four fin 31c; Expansion slit 4c between each fin 31c is a linear; The inner space can strut the said expansion wing after interior like this swell fixture is inserted supportive body less than swell fixture diameter in said during said each fin 31c closure state; Swell fixture 2c afterbody is provided with external screw thread 22c in said, and said supportive body 1c inside is provided with the female thread that is complementary with this external screw thread 22c.This utility model expansion resected femur inner supporting body, the three-dimensional porous dictyosome structure of using bioceramic to process, method such as embodiment 1.
Method for using: shown in figure 11; At first open a passage that can arrive at femoral head cartilage recessed position below during operation; Again an expansion resected femur inner supporting body main body is placed to precalculated position, collapse of the femoral head place below; Then interior swell fixture being put into the supporter body interior also progressively screws in so that the expansion wing struts gradually; Thereby extruding embeds surrounding bone tissue is fixed in desired location of living in an expansion resected femur inner supporting body, uses the passage approach of filling the shutoff below from body or the broken osseous granules of allosome and bone mud B accomplishing operation at last, the patient from the broken osseous granules of body and bone mud can be in operation cutting operating process such as bone, brill bone and obtain through necessity.
Embodiment 4
Like Fig. 7, shown in 8, the outside, fin 31c termination of said expansion wing 3c is provided with stop member 32c.It is outside that this stop member 32c is located on said expansion wing 3c.Other structures are with embodiment 3.
As shown in Figure 9, an a kind of expansion resected femur inner supporting body, it comprises supportive body 1d and interior swell fixture 2d; Said supportive body 1d is sheathed on outside the said interior swell fixture 2d; Said supportive body 1d top is an arc; Said supportive body 1d begins upwards to be provided with the radial expansion wing 301d of going up from the middle part, to having radial expansion wing 302d down.
Said upward expansion wing 301d, following expansion wing 302d form by four fins, and the said expansion slit 41d that goes up between each fin 310d of expansion wing 301d is a linear; Said expansion slit 42d between each fin 320d of expansion wing 302d down is a spiral type.
An above-mentioned expansion resected femur inner supporting body, supportive body surface and inside are provided with reinforcement; Surface local is coated with hydroxyapatite coating layer.
Said supportive body expansion wing closure state diameter 20mm, according to patient's the individual variation suitable dimension in can this scope of corresponding selection, this diameter range is for adapting to the optimum size scope of this utility model structure, length 60mm.Three-dimensional porous dictyosome pore diameter 50 μ m～900 μ m.
Embodiment 6
Shown in figure 13, said interior swell fixture 2a is provided with expansion arc 21, and this expansion arc 21 can strut said expansion wing 3a after interior swell fixture 2a inserted supportive body 1a; Said supportive body 1a is connected with interior swell fixture screw thread 2a.Swell fixture expansion arc 21 is provided with external screw thread for frustum structure outside in said.
The supportive body lower inside is provided with the female thread that is complementary with this external screw thread.Other structures of supportive body are with embodiment 1.
Embodiment 7
Like Figure 14, shown in 15, an a kind of expansion resected femur inner supporting body, it comprises supportive body 1e and interior swell fixture 2e; Said supportive body 1e is sheathed on outside the said interior swell fixture 2e; Said supportive body 1e top is an arc; Said supportive body 1e is provided with radial expansion wing 3e, and said expansion wing 3e is made up of eight fin 31e, forms expansion slit 4e between each fin 31e; Interior swell fixture 2e is provided with expansion arc 21e, and this expansion arc 21e can strut said expansion wing 3e after interior swell fixture 2e inserted supportive body 1e; Said supportive body 1a is connected with interior swell fixture screw thread 2a.Swell fixture expansion arc 21 is the frustum structure in said.
Said supportive body 1e is a cylindrical body, and its expansion wing 3e is positioned at said supportive body 1e middle and lower part and is radial.
Said expansion wing 3e is made up of eight fin 31e, and the expansion slit 4a between each fin 31e is a linear; , fin 31e is umbrella when being strutted by said expansion arc 21;
Said supportive body 1e is the three-dimensional porous dictyosome structure that medical metal or bioceramic are processed, and the surface and the inside of this three-dimensional porous dictyosome have some ducts that are interconnected; Swell fixture 2e upper-end outer surface is provided with external screw thread 22e in said, and said supportive body 1e top is an enclosed construction, and said supportive body 1e inside is provided with the female thread that is complementary with said interior swell fixture external screw thread 22e.
This utility model surface all has hydroxyapatite coating layer, and this hydroxyapatite coating layer has the function of inducing the osteocyte growth.An above-mentioned expansion resected femur inner supporting body, supportive body surface and inside are provided with reinforcement 30e.
Embodiment 8
Like Figure 16, shown in Figure 17, an a kind of expansion resected femur inner supporting body, it comprises supportive body 1f and interior swell fixture 2f; Said supportive body 1f is sheathed on outside the said interior swell fixture 2f; Said supportive body 1f top is an arc; Said supportive body 1f is provided with radial expansion wing 3f, and said expansion wing 3f is made up of two fin 31f, forms expansion slit 4f between each fin; Swell fixture 2c itself is expansion arc in said, and interior swell fixture 2f can strut said expansion wing 3f after inserting supportive body 1f; Said supportive body 1f and interior swell fixture 2f are threaded.
The top that said expansion wing 3f is positioned at said supportive body upwards is radial; Said expansion wing 3f is made up of two fin 31f; Expansion slit 4f between each fin 31f is a linear; The inner space can strut the said expansion wing after interior like this swell fixture is inserted supportive body less than swell fixture diameter in said during said each fin 31f closure state; Swell fixture 2f afterbody is provided with external screw thread 22f in said, and said supportive body 1f inside is provided with the female thread that is complementary with this external screw thread 22f.This utility model expansion resected femur inner supporting body, the three-dimensional porous dictyosome structure of using bioceramic to process, method for preparing such as embodiment 1.
Claims (14)
1. an expansion resected femur inner supporting body is characterized in that, it comprises supportive body and interior swell fixture; Said supportive body is sheathed on outside the said interior swell fixture; Said supportive body top is an arc; Said supportive body is provided with the radial expansion wing, and the said expansion wing is made up of some fins, forms the expansion slit between each fin; Swell fixture is provided with expansion arc in said, and this expansion arc can strut the said expansion wing after interior swell fixture was inserted supportive body; Said supportive body and interior swell fixture are threaded.
2. an expansion resected femur inner supporting body according to claim 1 is characterized in that said supportive body is a cylindrical body, and its expansion wing is positioned at said supportive body middle and lower part and is radial downwards.
3. an expansion resected femur inner supporting body according to claim 2 is characterized in that the said expansion wing is made up of 2～8 fins, and the expansion slit between each fin is a linear; Said interior swell fixture upper end is provided with external screw thread or the expansion arc outside is provided with external screw thread, and said supportive body inside is provided with the female thread that is complementary with said interior swell fixture external screw thread, and said supportive body top is an enclosed construction.
4. an expansion resected femur inner supporting body according to claim 2 is characterized in that the said expansion wing is made up of 2～8 fins, and the expansion slit between each fin is a spiral type; Said interior swell fixture upper end is provided with external screw thread or the expansion arc outside is provided with external screw thread, and said supportive body inside is provided with the female thread that is complementary with said interior swell fixture external screw thread, and said supportive body top is an enclosed construction.
5. an expansion resected femur inner supporting body according to claim 4 is characterized in that said supportive body top is provided with some bone graftings hole.
6. an expansion resected femur inner supporting body according to claim 5 is characterized in that, said interior swell fixture expansion arc is the frustum structure.
7. an expansion resected femur inner supporting body according to claim 1 is characterized in that, the top that the said expansion wing is positioned at said supportive body upwards is radial; The said expansion wing is made up of 2～8 fins, and the expansion slit between each fin is a linear; The swell fixture afterbody is provided with external screw thread in said, and said supportive body inside is provided with the female thread that is complementary with this external screw thread.
8. an expansion resected femur inner supporting body according to claim 7 is characterized in that, said expansion wing tip head outside is provided with stop member.
9. an expansion resected femur inner supporting body according to claim 1 is characterized in that, said supportive body begins upwards to be provided with the radial expansion wing of going up from the middle part, to having the radial expansion wing down.
10. an expansion resected femur inner supporting body according to claim 9 is characterized in that, said expansion slit of going up between each fin of the expansion wing is a linear; Said expansion slit between each fin of the expansion wing down is a spiral type.
11. according to any described expansion resected femur inner supporting body in the claim 1 to 10; It is characterized in that; Said supportive body is the three-dimensional porous dictyosome structure that medical metal or bioceramic are processed, and the surface and the internal void of this three-dimensional porous dictyosome connect each other; Pore diameter is 50 μ m～900 μ m.
12., it is characterized in that said supportive body surface and/or set inside have reinforcement or stiffener according to any described expansion resected femur inner supporting body in the claim 1 to 10.
13., it is characterized in that said supportive body surface and/or inner whole or local coating have hydroxyapatite coating layer according to any described expansion resected femur inner supporting body in the claim 1 to 10.
14., it is characterized in that said supportive body diameter 6～20mm, length 15～60mm according to any described expansion resected femur inner supporting body in the claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120202828U CN202146350U (en) | 2011-06-16 | 2011-06-16 | Expansion-fixed femoral head internal support body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120202828U CN202146350U (en) | 2011-06-16 | 2011-06-16 | Expansion-fixed femoral head internal support body |
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| CN202146350U true CN202146350U (en) | 2012-02-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824207A (en) * | 2011-06-16 | 2012-12-19 | 北京爱康宜诚医疗器材股份有限公司 | Support body in expansion fixing whirlbone |
| CN103565560A (en) * | 2012-08-03 | 2014-02-12 | 北京爱康宜诚医疗器材股份有限公司 | Shoulder joint prosthesis adjustable neck |
| CN103610490A (en) * | 2013-12-18 | 2014-03-05 | 刘杰 | Pressurized intramedullary expanding interlocking screw and manufacturing method thereof |
| CN106388980A (en) * | 2016-11-24 | 2017-02-15 | 河南理工大学 | Femoral head interior support device |
| WO2019106582A1 (en) * | 2017-12-01 | 2019-06-06 | 科能三维技术（医疗）有限公司 | Artificial bone |
| WO2022041643A1 (en) * | 2020-08-28 | 2022-03-03 | 陈聚伍 | Femoral neck fracture fixation device |
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2011
- 2011-06-16 CN CN201120202828U patent/CN202146350U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824207A (en) * | 2011-06-16 | 2012-12-19 | 北京爱康宜诚医疗器材股份有限公司 | Support body in expansion fixing whirlbone |
| CN102824207B (en) * | 2011-06-16 | 2015-03-25 | 北京爱康宜诚医疗器材股份有限公司 | Support body in expansion fixing whirlbone |
| CN103565560A (en) * | 2012-08-03 | 2014-02-12 | 北京爱康宜诚医疗器材股份有限公司 | Shoulder joint prosthesis adjustable neck |
| CN103610490A (en) * | 2013-12-18 | 2014-03-05 | 刘杰 | Pressurized intramedullary expanding interlocking screw and manufacturing method thereof |
| CN103610490B (en) * | 2013-12-18 | 2016-08-17 | 刘杰 | Swollen pinning and preparation method thereof in a kind of pressurization marrow |
| 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 |
| WO2019106582A1 (en) * | 2017-12-01 | 2019-06-06 | 科能三维技术（医疗）有限公司 | Artificial bone |
| WO2022041643A1 (en) * | 2020-08-28 | 2022-03-03 | 陈聚伍 | Femoral neck fracture fixation device |
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