CN204600801U - Locking-typed artificial femur handle - Google Patents
Locking-typed artificial femur handle Download PDFInfo
- Publication number
- CN204600801U CN204600801U CN201520274262.7U CN201520274262U CN204600801U CN 204600801 U CN204600801 U CN 204600801U CN 201520274262 U CN201520274262 U CN 201520274262U CN 204600801 U CN204600801 U CN 204600801U
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- Prior art keywords
- screw
- handle
- locking
- femoral stem
- stem body
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 50
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 abstract description 13
- 208000027418 Wounds and injury Diseases 0.000 abstract description 8
- 208000003241 Fat Embolism Diseases 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 208000032843 Hemorrhage Diseases 0.000 abstract description 4
- 238000002513 implantation Methods 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract description 3
- 239000007943 implant Substances 0.000 abstract description 2
- 238000001727 in vivo Methods 0.000 abstract description 2
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000001054 cortical effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 208000007875 Femur Head Necrosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 208000020089 femoral neck fracture Diseases 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
This utility model relates to a kind of locking-typed artificial femur handle, belongs to people's implants in vivo technical field.It is made up of femoral stem body and cervical region, cervical region is produced on the upper end of femoral stem body, the front side of described femoral stem body, rear side, inner side and outer side are manufactured with front side locking screw, rear side locking screw, inner side locking screw, outer side lock screw and horizontal screw respectively, locking screw is semicircle or circular screwhole, or screw that is semicircle and circular combination.After this locking-typed artificial femur handle inserts femoral bone cavitas medullaris by projected path, be locked in the near-end of femur by lock screw by each screw set on handle, what can realize between artificial femur handle and femur is firm fixing; Thus make the design of artificial femur handle need not be oversize, and bone amount can be retained more, decrease the wound in operation, difficulty that hemorrhage and later stage overhauls, improve the precision of operation behaviour wound, reduce and occur causing Fracture of femur equivalent risk in fat embolism and artificial femur handle implantation process.
Description
Technical field
This utility model relates to a kind of locking-typed artificial femur handle, belongs to people's implants in vivo technical field.
Background technology
Artificial coxa/half hip replacement has been widely used in disease such as treatment femoral neck fracture in elders, ischemic necrosis of femoral head etc.; In performing the operation as this type of, an important link to carry out firm fixing between artificial femur handle and femur, and reduce loosening and sinking equivalent risk of later stage artificial femur handle as much as possible.Increasing along with clinical practice, has observed in clinical and has manyly implanted caused complication by artificial femur handle, loosened as inserted the not good handle caused of rear stability due to femoral stem; Be pursue firm fixed effect to use excessive hammer force to cause Fracture of femur or fat embolism when handle is inserted; The matching of handle and pulp cavity is not good and cause and insert difficulty; Handle changes projected path by force in implantation process, and to cause prosthese position undesirable; The far-end of handle departs from pulp cavity center and withstands side cortical bone and causes postoperative large skelalgia; For realizing the near-end of handle, middle part, far-end " are fixed for 3 " and to cause the design of handle long, thus to cause in art too much, expand marrow repeatedly and increase the wound in art, hemorrhage and fat embolism, also exist to cause because handle is long the later stage overhaul wound in difficulty and overhaul technology excessive, lose blood more etc.; Although some prosthese has carried out anatomical form design, but human femur under loading pulp cavity is complex-shaped various, use the dissection prosthese of several model can not realize itself and good the mating of various Pulp chamber simply, thus make the utilization clinically of this type of prosthese not obtain suitable advantage.
Summary of the invention
The purpose of this utility model is, provides one can insert femoral bone cavitas medullaris by projected path, then is locked in the near-end of femur by locking screw set on handle by lock screw, and what can realize between artificial femur handle and femur is firm fixing; Thus make the design of artificial femur handle need not be oversize, or emphasis considers that the optimum matching of handle far-end all reaches optimum matching with femoral bone cavitas medullaris to avoid far away, the near-end that are difficult to try to achieve handle in art simultaneously in long handle design, with the difficulty reducing the wound in operation, hemorrhage and later stage overhauls, and bone amount can be retained more, improve the precision of operation behaviour wound, reduce and occur the locking-typed artificial femur handle causing Fracture of femur equivalent risk in fat embolism and artificial femur handle implantation process.
This utility model realizes above-mentioned purpose by the following technical solutions:
This locking-typed artificial femur handle is made up of femoral stem body and cervical region, cervical region is produced on the upper end of femoral stem body, it is characterized in that: the front side of femoral stem body, rear side, inner side and outer side are manufactured with respectively front side locking screw, rear side locking screw, inner side locking screw and outer side lock screw, described front side locking screw, rear side locking screw, inner side locking screw and outer side lock screw are semicircle or circular screwhole, or screw that is semicircle and circular combination.
Described front side locking screw, rear side locking screw, inner side locking screw and outer side lock screw only can make one of them separately as required, also can make wherein two, three or all make.Described front side locking screw, rear side lock screw, inner side locking screw is parallel with the surface of femoral stem body with the axis of outer side lock screw or have a certain degree.Described femoral stem body is manufactured with and runs through femoral stem body, and the horizontal screw that axis is vertical with femoral stem body surface.The basilar part of described cervical region is manufactured with gusset plate, and gusset plate is manufactured with through hole, femoral stem body is manufactured with the reinforcing screw coaxial with through hole.
This utility model beneficial effect is compared with prior art:
This locking-typed artificial femur handle is at the vertical of femoral stem body surface, front side, rear side, inner side and outer side is manufactured with respectively the horizontal screw vertical with handle surface, front side locking screw, rear side locking screw, inner side locking screw and outer side lock screw, after this locking-typed artificial femur handle inserts femoral bone cavitas medullaris by projected path, be locked in the near-end of femur by each screw set on handle by lock screw, a part of cylinder of screw is locked in artificial femur handle, another part cylinder of screw is then screwed in femur sclerotin, what can realize between prosthese and femur is firm fixing, thus make the design of prosthese need not be oversize, or emphasis considers that the optimum matching of handle far-end all reaches optimum matching with femoral bone cavitas medullaris to avoid far away, the near-end that are difficult to try to achieve handle in art simultaneously in long handle design, handle and the firm fixing of proximal medullary cavity then realize with locking nail by adding, with the difficulty decreasing wound in operation, hemorrhage and later stage overhauls, and bone amount can be retained more, improve the precision of operation behaviour wound, reduce and occur causing Fracture of femur equivalent risk in fat embolism and Using prosthesis process.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of locking-typed artificial femur handle;
Fig. 2 is the side-looking structural representation of locking-typed artificial femur handle;
Fig. 3 is the plan structure schematic diagram of locking-typed artificial femur handle;
Fig. 4 is the structural representation locking-typed artificial femur handle being manufactured with oblique locking screw and horizontal screw.
In figure: 1, femoral stem body, 2, cervical region, 3, rear side locking screw, 4, outer side lock screw, 5, inner side locking screw, 6, front side locking screw, 7, oblique locking screw, 8, horizontal screw, 9, gusset plate, 10, through hole.
Detailed description of the invention
This locking-typed artificial femur handle is made up of femoral stem body 1 and cervical region 2, cervical region 2 is produced on the upper end of femoral stem body 1, it is characterized in that: the front side of femoral stem body 1, rear side, inner side and outer side are manufactured with respectively front side locking screw 6, rear side locking screw 3, inner side locking screw 5 and outer side lock screw 4, described front side locking screw 6, rear side locking screw 3, inner side locking screw 5 and outer side lock screw 4 are semicircle or circular screwhole, or screw that is semicircle and circular combination.Described front side locking screw 6, rear side locking screw 3, inner side locking screw 5 and outer side lock screw 4 only can make one of them separately as required, also can make wherein two, three or all make.Described front side locking screw 6, rear side lock screw 3, inner side locking screw 5 is parallel with the surface of femoral stem body 1 with the axis of outer side lock screw 4 or have a certain degree.The vertical of described femoral stem body 1 is manufactured with and runs through femoral stem body 1, and the horizontal screw 8 that axis is vertical with femoral stem body 1 surface.Described cervical region 2 basilar part be manufactured with gusset plate 9, gusset plate 9 is manufactured with through hole 10, femoral stem body 1 is manufactured with the oblique reinforcing screw 7 coaxial with through hole 10.(see accompanying drawing 1 ~ 4).
This locking-typed artificial femur handle is implanted by following modus operandi:
By neck of femur by predetermined position osteotomy, take out femoral head, then appropriateness expands marrow, after die trial, this locking-typed artificial femur handle is incorporated into suitable position by the track preset, check that whether locking-typed artificial femur handle is fixed firm, if fix firmly, then installs, owe firm if fixing, then check locking-typed artificial femur handle fixing come from built on the sand before or below, inner side or outside, nearly section or section far away, after inspection again by its instability this one or more surfaces be screwed into lock screw and fix, a part of cylinder of screw is locked in artificial femur handle, another part cylinder of screw is then screwed in femur sclerotin, thus allow locking-typed artificial femur handle realize matched well together with lock screw and between femoral bone cavitas medullaris, its lock screw also can pass cortical bone to improve fixed effect in pulp cavity if desired, Bone Ingrowth is induced in the voided process that later stage is undertaken by material or the femoral stem surface of the induction Bone Ingrowth of femoral stem surface spraying, to improve fixed effect at a specified future date.
The above is preferred embodiment of the present utility model, above-mentioned illustrating does not do any pro forma restriction to flesh and blood of the present utility model, any simple modification that person of an ordinary skill in the technical field has done above detailed description of the invention according to technical spirit of the present utility model after having read this description or distortion, and the technology contents of above-mentioned announcement may be utilized to be changed or be modified to the Equivalent embodiments of equivalent variations, all still belong in the scope of technical solutions of the utility model, and do not deviate from essence of the present utility model and scope.
Claims (5)
1. a locking-typed artificial femur handle, it is made up of femoral stem body (1) and cervical region (2), cervical region (2) is produced on the upper end of femoral stem body (1), it is characterized in that: the front side of femoral stem body (1), rear side, inner side and outer side is manufactured with respectively front side locking screw (6), rear side locking screw (3), inner side locking screw (5) and outer side lock screw (4), described front side locking screw (6), rear side locking screw (3), inner side locking screw (5) and outer side lock screw (4) are semicircle or circular screwhole, or screw that is semicircle and circular combination.
2. locking-typed artificial femur handle according to claim 1, it is characterized in that: described front side locking screw (6), rear side locking screw (3), inner side locking screw (5) and outer side lock screw (4) can make one of them separately as required, also can make wherein two, three or all make.
3. locking-typed artificial femur handle according to claim 1, is characterized in that: described front side locking screw (6), rear side lock screw (3), inner side locking screw (5) is parallel with the surface of femoral stem body (1) with the axis of outer side lock screw (4) or have a certain degree.
4. locking-typed artificial femur handle according to claim 1, is characterized in that: described femoral stem body (1) is manufactured with and runs through femoral stem body (1), and the horizontal screw (8) that axis is vertical with femoral stem body (1) surface.
5. locking-typed artificial femur handle according to claim 1, it is characterized in that: the basilar part of described cervical region (2) is manufactured with gusset plate (9), gusset plate (9) is manufactured with through hole (10), femoral stem body (1) is manufactured with the reinforcing screw (7) coaxial with through hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274262.7U CN204600801U (en) | 2015-04-30 | 2015-04-30 | Locking-typed artificial femur handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274262.7U CN204600801U (en) | 2015-04-30 | 2015-04-30 | Locking-typed artificial femur handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204600801U true CN204600801U (en) | 2015-09-02 |
Family
ID=53953401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520274262.7U Active CN204600801U (en) | 2015-04-30 | 2015-04-30 | Locking-typed artificial femur handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204600801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758094A (en) * | 2015-04-30 | 2015-07-08 | 李照文 | Locking type artificial femoral stem |
-
2015
- 2015-04-30 CN CN201520274262.7U patent/CN204600801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758094A (en) * | 2015-04-30 | 2015-07-08 | 李照文 | Locking type artificial femoral stem |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160815 Address after: 430014, -3 building, B3 building, R & D building, B, C and D District, Wuhan hi tech Development Zone, Wuhan, Hubei, East Lake, China Patentee after: Bai AODA Biotechnology (Wuhan) Limited by Share Ltd Address before: 28 No. 434300 Jingzhou city of Hubei province Gongan County Tawau Di Zhen Chan Ling Da Dao (education garden unit 18, No. 702) Patentee before: Li Zhaowen |