CN104825252A - Femoral stem - Google Patents
Femoral stem Download PDFInfo
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- CN104825252A CN104825252A CN201510275652.0A CN201510275652A CN104825252A CN 104825252 A CN104825252 A CN 104825252A CN 201510275652 A CN201510275652 A CN 201510275652A CN 104825252 A CN104825252 A CN 104825252A
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- insert
- femoral stem
- post holes
- handle body
- peripheral face
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Abstract
The invention provides a femoral stem. According to the femoral stem, a column hole is formed in one end of a femoral stem body, a movable inserting piece is arranged on the peripheral face of the end corresponding to the femoral stem body of the column hole, a plugging column is arranged in the column hole and drives the inserting piece located on an initial position in the column hole to extend out towards the outside of the peripheral face to enable the inserting piece to be located in an inserting position. The column hole is formed in one end of the femoral stem body, the movable inserting piece and the plugging column inserted into the column hole are arranged on the peripheral face of the end corresponding to the femoral stem body of the column hole, the inserted plugging column drives the inserting piece located on the initial position in the column hole to extend out towards the outside of the peripheral face to enable the inserting piece to be located in the inserting position. Through the arrangement of the inserting piece with the inserting position at one end of the femoral stem body, after a femoral stem prosthesis with the inserting piece is implanted into the human body, the inserting piece on the femoral stem prosthesis is inserted into the physiological bones, and the stability of the implanted femoral stem prosthesis in the implantation later period is increased.
Description
Technical field
The present invention relates to medical device, in particular to a kind of femoral stem.
Background technology
Prosthetic loosening is the main cause that prosthese causes prosthese to lose efficacy, so the stability of prosthese in human body is the key factor affecting prosthese service life.Type femoral bone end prosthesis of the prior art adopts the mode of near-end coating process, utilizes in the coating of Bone Ingrowth type femoral bone end prosthesis of medium-term and long-term physiological bone, ensures the long-time stability of type femoral bone end prosthesis.
The shortcoming of prior art is that the initial stability of the first after date of Using prosthesis cannot well be ensured.
Summary of the invention
Main purpose of the present invention is to provide a kind of femoral stem, implants rear unstable problem to solve type femoral bone end prosthesis in prior art.
To achieve these goals, the invention provides a kind of femoral stem, comprising: femoral stem handle body, one end of femoral stem handle body is provided with post holes, and the outer peripheral face corresponding to one end of the femoral stem handle body of post holes is provided with mobilizable insert; Stick harness, is arranged in post holes and the outside of the insert promoting to be positioned at the initial position of post holes side face is toward the outside stretched out, and is positioned at receptacle location to make insert.
Further, the outer peripheral face corresponding to one end of the femoral stem handle body of post holes offers through hole, and insert is arranged in through hole, and the initial position of insert is positioned at the inner side of through hole, and the receptacle location of insert is positioned at the outside of through hole.
Further, bore spine portion is formed when insert is positioned at receptacle location.
Further, insert has protuberance, and described protuberance is circular arc.
Further, the angle between the axis in bore spine portion and the axis of post holes is less than or equal to 90 degree.
Further, insert comprises and is interconnected and has the first elasticity inserting paragraph and the second elasticity inserting paragraph of angle, the first end of the first elasticity inserting paragraph is connected with the first end of the second elasticity inserting paragraph formation corners, and insert has the primary importance being positioned at post holes and the second position protruding from post holes outer peripheral face.
Further, insert is multiple.
Further, multiple insert is along the transverse direction of femoral stem handle body and/or longitudinal arrangement.
Further, stick harness is wedge structure, and post holes is the wedge structure suitable with stick harness.
Further, insert is elasticity insert.
Apply technical scheme of the present invention, in one end of femoral stem handle body, post holes is set, outer peripheral face corresponding to one end of the femoral stem handle body of post holes is provided with mobilizable insert, with the stick harness be inserted in post holes, the outside of the insert that the stick harness that plugs promotes to be positioned at the initial position of post holes side face is toward the outside stretched out, and makes insert be positioned at receptacle location.By arranging the insert with receptacle location in femoral stem handle body one end, setting has the type femoral bone end prosthesis of insert after implant into body, insert on type femoral bone end prosthesis is plugged in the physiology sclerotin of human body, the stability of add the type femoral bone end prosthesis after implantation phase after the implantation.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the explosive view at the first visual angle of the embodiment according to femoral stem of the present invention;
Fig. 2 shows the explosive view at the second visual angle of the embodiment according to femoral stem of the present invention;
Fig. 3 shows the explosive view at the 3rd visual angle of the embodiment according to femoral stem of the present invention;
Fig. 4 shows the structural representation according to the embodiment in the stick harness patchhole post of femoral stem of the present invention;
Fig. 5 shows the front view according to the embodiment in the stick harness patchhole post of femoral stem of the present invention;
Fig. 6 shows the right view of Fig. 5; And
Fig. 7 shows the structural representation of the embodiment of the insert according to femoral stem of the present invention.
Wherein, above-mentioned accompanying drawing comprises the following drawings labelling:
10, femoral stem handle body; 11, post holes; 12, insert; 13, through hole; 14, protuberance; 15, bore spine portion; 16, the first elasticity inserting paragraph; 17, the second elasticity inserting paragraph; 20, stick harness.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, in this time embodiment, the invention provides a kind of femoral stem, one end of femoral stem handle body 10 is provided with post holes 11, outer peripheral face corresponding to one end of the femoral stem handle body 10 of post holes 11 is provided with mobilizable insert 12, stick harness 20 is arranged in post holes 11 and the outside of the insert 12 promoting to be positioned at the initial position of post holes 11 side face is toward the outside stretched out, and is positioned at receptacle location to make insert 12.
In the present embodiment, in one end of femoral stem handle body 10, post holes 11 is set, outer peripheral face corresponding to one end of the femoral stem handle body 10 of post holes 11 is provided with mobilizable insert 12, with the stick harness 20 be inserted in post holes 11, the outside of the insert 12 that the stick harness 20 that plugs promotes to be positioned at the initial position of post holes 11 side face is toward the outside stretched out, and makes insert 12 be positioned at receptacle location.By arranging the insert 12 with receptacle location in femoral stem handle body 10 one end, setting has the femoral stem handle body 10 of insert 12 after implant into body, insert on type femoral bone end prosthesis is plugged in the physiology sclerotin of human body, the stability of add the type femoral bone end prosthesis after implantation phase after the implantation, the type femoral bone end prosthesis with insert can not be got loose after implant into body, add the comfort level of patient.
As shown in Fig. 2 to 3, in the present embodiment, the outer peripheral face corresponding to one end of the femoral stem handle body 10 of post holes 11 offers through hole 13, and insert 12 is arranged in through hole 13, the initial position of insert 12 is positioned at the inner side of through hole 13, and the receptacle location of insert 12 is positioned at the outside of through hole 13.Conveniently type femoral bone end prosthesis is easy for installation and installing the physiology sclerotin not injuring human body before femoral stem, insert 12 is arranged on the outer peripheral face of the post holes 11 with through hole 13, through hole 13 is connected in post holes 11, insert 12 is positioned at the inner side of through hole 13 when initial position, when insert 12 is on position, insert 12 is positioned at the outside of through hole 13 and convex.After being arranged to install whole type femoral bone end prosthesis like this, stick harness 20 is inserted into after in post holes 11, trigger insert 12, when making insert 12 move on position from starting position, one end of insert 12 is inserted in Human Physiology sclerotin, not only add the friction of femoral stem handle body 10 and human body bone, the stability of also add whole type femoral bone end prosthesis phase after the implantation.
One end of femoral stem handle body 10 is near-end, and namely femoral stem handle body 10 forms post holes 11 for hollow type, and stick harness 20 is filled in the post holes 11 of hollow type after implanting by femoral stem.Femoral stem near-end is provided with multiple deformable insert 12, and insert 12 movable end is pointed setting, so that insert human body bone.Insert 12 movable end can be arranged on the upper end of through hole 13, also can be arranged on the lower end of through hole 13.It is arc-shaped structure that insert 12 is positioned at post holes 11 side, is convenient to without clamping stagnation when stick harness 20 is filled in, and inserts in human body bone after insert 12 is out of shape smoothly.
When stick harness 20 is inserted in post holes 11, post holes 11 can expand, distortion insert 12 structure that expansion fixed pattern femoral stem utilizes femoral stem near-end to arrange just above, after the femoral stem initial stage implants, the distortion of insert 12 when utilizing stick harness to fill in, make distortion insert 12 tip be inserted in Human Physiology sclerotin, well achieve the initial mechanical of prosthese in human body pulp cavity and stablize, for the long-time stability of femoral stem in pulp cavity are laid a good foundation.
In the present embodiment, bore spine portion 15 is formed when insert 12 is positioned at receptacle location.In order to make insert 12 can insert smoothly in Human Physiology sclerotin, the insertion end of insert 12 is arranged to bore spine portion 15.
In the present embodiment, insert 12 has protuberance 14, and described protuberance 14 is in circular arc.In order to realize at short notice insert 12 insert realize in Human Physiology sclerotin fixing, the protuberance 14 of insert 12 is arranged at the inside of post holes 11, protuberance 14 is in circular arc, the protuberance of circular arc is conducive to when stick harness 20 to insert in post holes 11 with protuberance 14 joint and moves to post holes 11 lower end, reduce the drag of insert 12 and stick harness 20, thus insert 12 is inserted in Human Physiology sclerotin smoothly.
In the present embodiment, the angle between the axis in bore spine portion 15 and the axis of post holes 11 is less than or equal to 90 degree.Long-term stability can be kept after making type femoral bone end prosthesis in implantation manpower physiology sclerotin, the bore spine portion 15 of the insert 12 on type femoral bone end prosthesis is arranged to the slanted angle axially having certain angle with post holes 11, the incline direction in bore spine portion 15 can be also can arrange along plumb line direction along the vertical direction of femoral stem handle neck.
As shown in Fig. 4 to 7, according to another embodiment of the invention, insert 12 comprises and is interconnected and has the first elasticity inserting paragraph 16 and the second elasticity inserting paragraph 17 of angle, the first end of the first elasticity inserting paragraph 16 is connected with the first end of the second elasticity inserting paragraph 17 formation corners, and insert 12 has the primary importance being positioned at post holes 11 and the second position protruding from post holes 11 outer peripheral face.Plugging reliability in Human Physiology sclerotin to improve insert 12, insert 12 being arranged to the elasticity insert 12 be made up of the first elasticity inserting paragraph 16 and the second elasticity inserting paragraph 17 with elastic performance.
In the present embodiment, insert 12 is multiple.In order to realize the omnibearing stability of type femoral bone end prosthesis, insert 12 is arranged on uniformly on the outer peripheral face of post holes 11, the concrete size of insert 12 can also be set according to the size of femoral stem, make the type femoral bone end prosthesis with insert 12 can be adapted to the patient of different physiology sclerotin.
In the present embodiment, multiple insert 12 is along the transverse direction of femoral stem handle body 10 and/or longitudinal arrangement.Insert 12 in the present invention is arranged on the both sides of post holes 11, and every side has the insert of two row three row, and the insert 12 selecting suitable position to arrange right quantity can increase the stability of type femoral bone end prosthesis.
In the present embodiment, stick harness 20 is wedge structure, and post holes 11 is the wedge structure suitable with stick harness 20.Post holes 11 is arranged to the wedge structure suitable with stick harness 20, stick harness 20 can be made effectively to contact with the protuberance 14 of the insert 12 be arranged in stick harness 20, and occur to extrude with protuberance 14 thus insert 12 is stretched out from post holes 11 inside.
Stick harness 20 is set to up big and down small type wedge structure, is convenient to, after type femoral bone end prosthesis is implanted, insert in femoral stem post holes 11.
In the present embodiment, insert 12 is elasticity insert.Insert 12 adopts to be had elastic material and makes, and is formed with femoral stem handle body 10 and be wholely set.Because human synovial can make the crucial prosthese after implanting shake in the process of walking about, and employing has elastic insert 12,, occur at type femoral bone end prosthesis can play cushioning effect in the process of vibrations, thus prevent the insertion end of insert 12 from deviating from from Human Physiology sclerotin.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
Apply technical scheme of the present invention, in one end of femoral stem handle body, post holes is set, outer peripheral face corresponding to one end of the femoral stem handle body of post holes is provided with mobilizable insert, with the stick harness be inserted in post holes, the outside of the insert that the stick harness that plugs promotes to be positioned at the initial position of post holes side face is toward the outside stretched out, and makes insert be positioned at receptacle location.By arranging the insert with receptacle location in femoral stem handle body one end, setting has the type femoral bone end prosthesis of insert after implant into body, insert on type femoral bone end prosthesis is plugged in the physiology sclerotin of human body, the stability of add the type femoral bone end prosthesis after implantation phase after the implantation.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a femoral stem, is characterized in that, comprising:
Femoral stem handle body (10), one end of described femoral stem handle body (10) is provided with post holes (11), and the outer peripheral face corresponding to one end of the described femoral stem handle body (10) of described post holes (11) is provided with mobilizable insert (12);
Stick harness (20), be arranged in described post holes (11) the described insert (12) also promoting to be positioned at the initial position of described post holes (11) to stretch out towards the outside of described outer peripheral face, be positioned at receptacle location to make described insert (12).
2. femoral stem according to claim 1, it is characterized in that, outer peripheral face corresponding to one end of the described femoral stem handle body (10) of described post holes (11) offers through hole (13), described insert (12) is arranged in described through hole (13), the initial position of described insert (12) is positioned at the inner side of described through hole (13), and the receptacle location of described insert (12) is positioned at the outside of described through hole (13).
3. femoral stem according to claim 1, is characterized in that, is formed with bore spine portion (15) when described insert (12) is positioned at described receptacle location.
4. femoral stem according to claim 3, is characterized in that, described insert (12) has protuberance (14), and described protuberance (14) is in circular arc.
5. femoral stem according to claim 3, is characterized in that, the angle between the axis of described bore spine portion (15) and the axis of described post holes (11) is less than or equal to 90 degree.
6. femoral stem according to claim 1, it is characterized in that, described insert (12) comprises and is interconnected and has the first elasticity inserting paragraph (16) and the second elasticity inserting paragraph (17) of angle, the first end of described first elasticity inserting paragraph (16) is connected with the first end of described second elasticity inserting paragraph (17) formation corners, and described insert (12) has the primary importance being positioned at described post holes (11) and the second position protruding from described post holes (11) outer peripheral face.
7. femoral stem according to claim 1, is characterized in that, described insert (12) is for multiple.
8. femoral stem according to claim 7, is characterized in that, described multiple insert (12) is along the transverse direction of described femoral stem handle body (10) and/or longitudinal arrangement.
9. femoral stem according to claim 2, is characterized in that, described stick harness (20) is wedge structure, and described post holes (11) is the wedge structure suitable with described stick harness (20).
10. femoral stem according to claim 1, is characterized in that, described insert (12) is elasticity insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275652.0A CN104825252B (en) | 2015-05-26 | 2015-05-26 | Femoral stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275652.0A CN104825252B (en) | 2015-05-26 | 2015-05-26 | Femoral stem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104825252A true CN104825252A (en) | 2015-08-12 |
| CN104825252B CN104825252B (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510275652.0A Active CN104825252B (en) | 2015-05-26 | 2015-05-26 | Femoral stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104825252B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670503A (en) * | 2018-07-25 | 2018-10-19 | 南京医科大学附属逸夫医院 | A kind of bion femoral stem and its application method containing ti-ni shape memory alloy hangnail |
| CN109259900A (en) * | 2018-09-06 | 2019-01-25 | 北京安颂科技有限公司 | The method for implantation of acetabular component, hip prosthesis and acetabular component |
| CN116725748A (en) * | 2023-08-08 | 2023-09-12 | 北京爱康宜诚医疗器材有限公司 | Insertion type prosthesis |
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| US4608053A (en) * | 1982-05-03 | 1986-08-26 | Waldemar Link Gmbh & Co. | Femoral hip prosthesis |
| CN2395708Y (en) * | 1999-10-21 | 2000-09-13 | 姚滨南 | Four-point fixed whole hip artificial joint |
| US20120259334A1 (en) * | 2006-08-11 | 2012-10-11 | Howmedica Osteonics Corp. | Expanding trial stem for orthopaedic surgery |
| CN202724042U (en) * | 2012-01-13 | 2013-02-13 | 北京爱康宜诚医疗器材股份有限公司 | Sharp tooth type biological fixation femoral stem |
| CN103445885A (en) * | 2013-07-02 | 2013-12-18 | 刘顺民 | Femoral handle fixed through expansion |
| CN203609546U (en) * | 2013-11-08 | 2014-05-28 | 深圳先进技术研究院 | Artificial hip joint structure |
| CN204306932U (en) * | 2014-11-28 | 2015-05-06 | 李荣锐 | A kind of hip joint prosthesis |
| CN204909728U (en) * | 2015-05-26 | 2015-12-30 | 北京爱康宜诚医疗器材股份有限公司 | Femoral stem |
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2015
- 2015-05-26 CN CN201510275652.0A patent/CN104825252B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4608053A (en) * | 1982-05-03 | 1986-08-26 | Waldemar Link Gmbh & Co. | Femoral hip prosthesis |
| CN2395708Y (en) * | 1999-10-21 | 2000-09-13 | 姚滨南 | Four-point fixed whole hip artificial joint |
| US20120259334A1 (en) * | 2006-08-11 | 2012-10-11 | Howmedica Osteonics Corp. | Expanding trial stem for orthopaedic surgery |
| CN202724042U (en) * | 2012-01-13 | 2013-02-13 | 北京爱康宜诚医疗器材股份有限公司 | Sharp tooth type biological fixation femoral stem |
| CN103445885A (en) * | 2013-07-02 | 2013-12-18 | 刘顺民 | Femoral handle fixed through expansion |
| CN203609546U (en) * | 2013-11-08 | 2014-05-28 | 深圳先进技术研究院 | Artificial hip joint structure |
| CN204306932U (en) * | 2014-11-28 | 2015-05-06 | 李荣锐 | A kind of hip joint prosthesis |
| CN204909728U (en) * | 2015-05-26 | 2015-12-30 | 北京爱康宜诚医疗器材股份有限公司 | Femoral stem |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670503A (en) * | 2018-07-25 | 2018-10-19 | 南京医科大学附属逸夫医院 | A kind of bion femoral stem and its application method containing ti-ni shape memory alloy hangnail |
| CN109259900A (en) * | 2018-09-06 | 2019-01-25 | 北京安颂科技有限公司 | The method for implantation of acetabular component, hip prosthesis and acetabular component |
| CN109259900B (en) * | 2018-09-06 | 2023-08-22 | 北京安颂科技有限公司 | Acetabular prosthesis, hip joint prosthesis and method for implanting an acetabular prosthesis |
| CN116725748A (en) * | 2023-08-08 | 2023-09-12 | 北京爱康宜诚医疗器材有限公司 | Insertion type prosthesis |
| CN116725748B (en) * | 2023-08-08 | 2023-11-24 | 北京爱康宜诚医疗器材有限公司 | Insertion type prosthesis |
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| Publication number | Publication date |
|---|---|
| CN104825252B (en) | 2018-03-23 |
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Address after: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee after: Beijing Aikang Yicheng Medical Equipment Co., Ltd. Address before: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee before: Beijing AKEC Medical Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200713 Address after: No. 506, Changshun Road, West Taihu science and Technology Industrial Park, Changzhou, Jiangsu Patentee after: TIANYAN MEDICAL EQUIPMENT Co.,Ltd. Address before: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee before: Beijing AK Medical Co.,Ltd. |