CN104758094A - Locking type artificial femoral stem - Google Patents
Locking type artificial femoral stem Download PDFInfo
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- CN104758094A CN104758094A CN201510215572.6A CN201510215572A CN104758094A CN 104758094 A CN104758094 A CN 104758094A CN 201510215572 A CN201510215572 A CN 201510215572A CN 104758094 A CN104758094 A CN 104758094A
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- femoral stem
- screw
- locking
- locking screw
- stem body
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Abstract
The invention relates to a locking type artificial femoral stem, and belongs to the technical field of human body implantation materials. The locking type artificial femoral stem is composed of a femoral stem body and a neck part. The neck part is made to be at the upper end of the femoral stem body. The front side, the rear side, the inner side and the outer side of the femoral stem body are provided with a front side locking screw hole, a rear side locking screw hole, an inner side locking screw hole, an outer side locking screw hole and a transverse screw hole. The locking screw holes are all the semi-circular or circular screw holes or the semi-circular and circular combining screw holes. When the locking type artificial femoral stem is implanted into a femoral medullary cavity along a pre-set track, locking screws pass through the screw holes formed in the femoral stem body, and the locking type artificial femoral stem is locked at the close end of a femur, firm fixing of the artificial femoral stem and the femur can be achieved, the length of the artificial femoral stem cannot be too long, bone mass can be maintained more, the trauma, bleeding and the difficulty of the revision in the later period during operating can be lowered, the operating accuracy during the operating is increased, the fat embolism is lowered, and the risk of femur facture in the artificial femoral implanting process is lowered.
Description
Technical field
The present invention relates to a kind of locking-typed artificial femur handle, belong 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 object of the invention is to, provide one can insert femoral bone cavitas medullaris by projected path, then be locked in the near-end of femur by locking screw set on handle by lock screw, 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.
The present invention 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.
The present invention's 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 invention, above-mentioned illustrating does not do any pro forma restriction to flesh and blood of the present invention, 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 invention 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 solution of the present invention, and do not deviate from the spirit and scope of the invention.
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 |
|---|---|---|---|
| CN201510215572.6A CN104758094A (en) | 2015-04-30 | 2015-04-30 | Locking type artificial femoral stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215572.6A CN104758094A (en) | 2015-04-30 | 2015-04-30 | Locking type artificial femoral stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104758094A true CN104758094A (en) | 2015-07-08 |
Family
ID=53640440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510215572.6A Pending CN104758094A (en) | 2015-04-30 | 2015-04-30 | Locking type artificial femoral stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104758094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106109061A (en) * | 2016-08-05 | 2016-11-16 | 北京爱康宜诚医疗器材有限公司 | Femoral stem |
| CN115944436A (en) * | 2023-03-14 | 2023-04-11 | 北京爱康宜诚医疗器材有限公司 | Femoral stem prosthesis |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2528307A1 (en) * | 1982-06-14 | 1983-12-16 | Tornier Sa | Prosthetic joint section for femur - has plate with rounded convex support face towards free end of femur |
| CN2197961Y (en) * | 1994-07-30 | 1995-05-24 | 徐州市第一人民医院 | Combined screw handle artificial bone of femur |
| JP2000189447A (en) * | 1998-12-25 | 2000-07-11 | Kyocera Corp | Operation instrument for attaching artificial hip joint stem |
| US6361566B1 (en) * | 2000-03-10 | 2002-03-26 | Bashar Al-Hafez | Hip prosthesis |
| FR2832310A1 (en) * | 2001-11-21 | 2003-05-23 | Patrick Suret | Femoral implant for hip prosthesis has neck with foot attached to base and with holes for anchors fixings to femur |
| CN1631341A (en) * | 2004-12-30 | 2005-06-29 | 潘滔 | Combined type locked sessile hip joint |
| CN203458496U (en) * | 2013-05-15 | 2014-03-05 | 重庆润泽医药有限公司 | Femoral implanted prosthesis |
| CN203898415U (en) * | 2014-06-19 | 2014-10-29 | 李照文 | Interspinous universal stabilizer |
| CN204600801U (en) * | 2015-04-30 | 2015-09-02 | 李照文 | Locking-typed artificial femur handle |
-
2015
- 2015-04-30 CN CN201510215572.6A patent/CN104758094A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2528307A1 (en) * | 1982-06-14 | 1983-12-16 | Tornier Sa | Prosthetic joint section for femur - has plate with rounded convex support face towards free end of femur |
| CN2197961Y (en) * | 1994-07-30 | 1995-05-24 | 徐州市第一人民医院 | Combined screw handle artificial bone of femur |
| JP2000189447A (en) * | 1998-12-25 | 2000-07-11 | Kyocera Corp | Operation instrument for attaching artificial hip joint stem |
| US6361566B1 (en) * | 2000-03-10 | 2002-03-26 | Bashar Al-Hafez | Hip prosthesis |
| FR2832310A1 (en) * | 2001-11-21 | 2003-05-23 | Patrick Suret | Femoral implant for hip prosthesis has neck with foot attached to base and with holes for anchors fixings to femur |
| FR2832310B1 (en) * | 2001-11-21 | 2004-09-03 | Patrick Suret | FEMALE IMPLANT FOR HIP PROSTHESIS |
| CN1631341A (en) * | 2004-12-30 | 2005-06-29 | 潘滔 | Combined type locked sessile hip joint |
| CN203458496U (en) * | 2013-05-15 | 2014-03-05 | 重庆润泽医药有限公司 | Femoral implanted prosthesis |
| CN203898415U (en) * | 2014-06-19 | 2014-10-29 | 李照文 | Interspinous universal stabilizer |
| CN204600801U (en) * | 2015-04-30 | 2015-09-02 | 李照文 | Locking-typed artificial femur handle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106109061A (en) * | 2016-08-05 | 2016-11-16 | 北京爱康宜诚医疗器材有限公司 | Femoral stem |
| CN115944436A (en) * | 2023-03-14 | 2023-04-11 | 北京爱康宜诚医疗器材有限公司 | Femoral stem prosthesis |
| CN115944436B (en) * | 2023-03-14 | 2023-05-02 | 北京爱康宜诚医疗器材有限公司 | Femoral stem prosthesis |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 28 No. 434300 Jingzhou city of Hubei province Gongan County Tawau Di Zhen Chan Ling Da Dao (education garden unit 18, No. 702) Applicant after: Li Zhaowen Address before: 434300, No. 234 oil River Road, Tawau Town, Jingzhou, Hubei, Gongan County Applicant before: Li Zhaowen |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |
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| WD01 | Invention patent application deemed withdrawn after publication |