CN104825252B - Femoral stem - Google Patents
Femoral stem Download PDFInfo
- Publication number
- CN104825252B CN104825252B CN201510275652.0A CN201510275652A CN104825252B CN 104825252 B CN104825252 B CN 104825252B CN 201510275652 A CN201510275652 A CN 201510275652A CN 104825252 B CN104825252 B CN 104825252B
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- China
- Prior art keywords
- insert
- femoral stem
- post holes
- shank body
- outer peripheral
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 23
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 210000000988 bone and bone Anatomy 0.000 abstract description 31
- 108010048734 sclerotin Proteins 0.000 abstract description 14
- 230000035479 physiological effects, processes and functions Effects 0.000 abstract description 13
- 238000002513 implantation Methods 0.000 abstract description 11
- 239000002360 explosive Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 230000037086 body physiology Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The invention provides a kind of femoral stem, including：One end of femoral stem shank body is provided with post holes, corresponding to being provided with mobilizable insert on the outer peripheral face of one end of the femoral stem shank body of post holes, stick harness is arranged in post holes and promotes the insert of the initial position in post holes to be stretched out towards the outside of outer peripheral face, so that insert is located at receptacle location.In one end of femoral stem shank body, post holes is set, corresponding to being provided with mobilizable insert on the outer peripheral face of one end of the femoral stem shank body of post holes, with the stick harness being inserted in post holes, the stick harness plugged promotes the insert of the initial position in post holes to be stretched out towards the outside of outer peripheral face so that insert is located at receptacle location.By setting the insert with receptacle location in femoral stem shank body one end, type femoral bone end prosthesis with insert is set after human body is implanted into, insert on type femoral bone end prosthesis is plugged in the physiology sclerotin of human body, adds the stability of type femoral bone end prosthesis phase after the implantation after implantation.
Description
Technical field
The present invention relates to medical equipment, in particular to a kind of femoral stem.
Background technology
Prosthetic loosening is the main reason for prosthese causes prosthese to fail, so stability of the prosthese in human body is to influence vacation
An important factor for body service life.Type femoral bone end prosthesis of the prior art is long-term in utilization by the way of near-end coating treatment
In the coating of the Bone Ingrowth type femoral bone end prosthesis of physiological bone, ensure the long-time stability of type femoral bone end prosthesis.
The shortcomings that prior art is that the initial stability after Using prosthesis initial stage can not be ensured well.
The content of the invention
It is a primary object of the present invention to provide a kind of femoral stem, to solve after type femoral bone end prosthesis is implanted into the prior art not
The problem of stable.
To achieve these goals, the invention provides a kind of femoral stem, including：Femoral stem shank body, femoral stem shank body
One end is provided with post holes, corresponding to being provided with mobilizable insert on the outer peripheral face of one end of the femoral stem shank body of post holes；Plug
Post, it is arranged in post holes and promotes the insert of the initial position in post holes to be stretched out towards the outside of outer peripheral face, so as to insert
Enter part and be located at receptacle location.
Further, corresponding to post holes femoral stem shank body one end outer peripheral face on offer through hole, insert is set
In through hole, the initial position of insert is located at the inner side of through hole, and the receptacle location of insert is located at the outside of through hole.
Further, formed with bore spine portion when insert is located at receptacle location.
Further, insert has protuberance, and the protuberance is in 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 includes being connected with each other and the first elastic inserting paragraph with angle and the second elasticity are inserted
Section, the first end of the first elastic inserting paragraph are connected to form corners with the first end of the second elastic inserting paragraph, and insert has
First position in post holes and the second place for protruding from post holes outer peripheral face.
Further, insert is multiple.
Further, laterally and/or longitudinally arrangement of multiple inserts along femoral stem shank body.
Further, stick harness is wedge structure, and post holes is the wedge structure being adapted with stick harness.
Further, insert is elastic insert.
Apply the technical scheme of the present invention, post holes is set in one end of femoral stem shank body, corresponding to the femoral stem handle of post holes
Mobilizable insert is provided with the outer peripheral face of one end of body, and the stick harness being inserted in post holes, the stick harness plugged promote position
Stretched out in the insert of the initial position in post holes towards the outside of outer peripheral face so that insert is located at receptacle location.By
Femoral stem shank body one end sets the insert with receptacle location, sets the type femoral bone end prosthesis with insert in implantation human body
Afterwards, the insert on type femoral bone end prosthesis is plugged in the physiology sclerotin of human body, is added the type femoral bone end prosthesis after implantation and is being implanted into
The stability in later stage.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do 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 of the femoral stem according to the present invention；
Fig. 2 shows the explosive view at the second visual angle of the embodiment of the femoral stem according to the present invention；
Fig. 3 shows the explosive view at the 3rd visual angle of the embodiment of the femoral stem according to the present invention；
Fig. 4 shows the structural representation of the embodiment in the stick harness insertion hole post according to the femoral stem of the present invention；
Fig. 5 shows the front view of the embodiment in the stick harness insertion hole post according to the femoral stem of the present invention；
Fig. 6 shows Fig. 5 right view；And
Fig. 7 shows the structural representation of the embodiment of the insert of the femoral stem according to the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, femoral stem shank body；11st, post holes；12nd, insert；13rd, through hole；14th, protuberance；15th, bore spine portion；16th, the first bullet
Property inserting paragraph；17th, the second elastic inserting paragraph；20th, stick harness.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, in this when embodiment, the invention provides a kind of femoral stem, one end of femoral stem shank body 10 is set
Post holes 11 is equipped with, corresponding to being provided with mobilizable insert 12 on the outer peripheral face of one end of the femoral stem shank body 10 of post holes 11,
Stick harness 20 is arranged in post holes 11 and promotes the insert 12 of the initial position in post holes 11 towards stretching on the outside of outer peripheral face
Go out, so that insert 12 is located at receptacle location.
In the present embodiment, post holes 11 is set in one end of femoral stem shank body 10, corresponding to the femoral stem shank body 10 of post holes 11
One end outer peripheral face on be provided with mobilizable insert 12, and the stick harness 20 being inserted in post holes 11, the stick harness 20 plugged
The insert 12 of the initial position in post holes 11 is promoted to be stretched out towards the outside of outer peripheral face so that insert 12, which is located at, to be plugged
Position.By setting the insert 12 with receptacle location in the one end of femoral stem shank body 10, the femur with insert 12 is set
Handle shank body 10 is after human body is implanted into, and the insert on type femoral bone end prosthesis is plugged in the physiology sclerotin of human body, after adding implantation
Type femoral bone end prosthesis phase after the implantation stability so that the type femoral bone end prosthesis with insert will not occur after human body is implanted into
Release, add the comfort level of patient.
As shown in Fig. 2 to 3, in the present embodiment, corresponding on the outer peripheral face of one end of the femoral stem shank body 10 of post holes 11
Through hole 13 is offered, insert 12 is arranged in through hole 13, and the initial position of insert 12 is located at the inner side of through hole 13, insert
12 receptacle location is located at the outside of through hole 13.It is easy for installation and do not hinder before femoral stem is installed in order to facilitate type femoral bone end prosthesis
The physiology sclerotin of victimization body, insert 12 is arranged on the outer peripheral face of the post holes 11 with through hole 13, through hole 13 is in post holes 11
Be connected, insert 12 in initial position positioned at the inner side of through hole 13, insert 12 when insert 12 is in insertion position
In the outside of through hole 13 and convex.So set after to install whole type femoral bone end prosthesis, stick harness 20 is inserted into post
After in hole 11, insert 12 is triggered so that when insert 12 is moved to insertion position from starting position, one end of insert 12 is inserted
Enter in Human Physiology sclerotin, not only add the friction of femoral stem shank body 10 and human body bone, it is false to also add whole femoral stem
The stability of body phase after the implantation.
One end of femoral stem shank body 10 is near-end, and femoral stem shank body 10 is that hollow type forms post holes 11, and femoral stem is planted
After entering, stick harness 20 is filled in the post holes 11 of hollow type.Femur handle proximal end is provided with multiple deformable inserts 12, insert
12 movable ends are pointed setting, in order to insert human body bone.The movable end of insert 12 may be provided at the upper end of through hole 13, also may be used
It is arranged on the lower end of through hole 13.It is arc-shaped structure that insert 12, which is located at the side of post holes 11, without clamping stagnation when being easy to the stick harness 20 to fill in,
And insert 12 is set to be inserted after smoothly deforming in human body bone.
In stick harness 20 is inserted into post holes 11, post holes 11 can expand, and expansion fixed femoral stem is exactly to utilize stock
The structure of deformation insert 12 that bone handle proximal end is set above, after femoral stem implantation at initial stage, insert 12 when being filled in using stick harness
Deformation, the tip of deformation insert 12 is inserted into Human Physiology sclerotin, realize prosthese well in human body pulp cavity
Initial mechanical is stable, is laid a good foundation for long-time stability of the femoral stem in pulp cavity.
In the present embodiment, formed with bore spine portion 15 when insert 12 is located at receptacle location.In order that obtain the energy of insert 12
It is enough smoothly to insert 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 the protuberance 14 is in circular arc.In order in a short time
Realize that insert 12 inserts and fixation is realized in Human Physiology sclerotin, the protuberance 14 of insert 12 is arranged in post holes 11
Portion, protuberance 14 are in circular arc, and the protuberance of circular arc is advantageous to insert in post holes 11 in stick harness 20 and the joint of protuberance 14
And to the lower end of post holes 11 move when, the drag of insert 12 and stick harness 20 is reduced, so that insert 12 smoothly inserts people
In body physiology sclerotin.
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.For
Cause type femoral bone end prosthesis after be implanted into manpower physiology sclerotin can keep long-term stability, will be on type femoral bone end prosthesis it is slotting
The bore spine portion 15 for entering part 12 is arranged to the slanted angle for axially having certain angle with post holes 11, and the incline direction in bore spine portion 15 can be with
It is that can also be set along the vertical direction of femoral stem handle neck along plumb line direction.
As shown in Fig. 4 to 7, according to another embodiment of the invention, insert 12 includes being connected with each other and has angle
The first elastic 16 and second elastic inserting paragraph 17 of inserting paragraph, the first end of the first elastic inserting paragraph 16 and the second elastic inserting paragraph
17 first end is connected to form corners, and insert 12 has the first position in post holes 11 and protruded from outside post holes 11
The second place of side face.Reliability in Human Physiology sclerotin is plugged in order to improve insert 12, insert 12 is arranged to
The elastic insert 12 being made up of the first elastic 16 and second elastic inserting paragraph 17 of inserting paragraph of flexible performance.
In the present embodiment, insert 12 is multiple.In order to realize the comprehensive stability of type femoral bone end prosthesis, by insert
12 are uniformly arranged on the outer peripheral face of post holes 11, can also set 12 specific size of insert according to the size of femoral stem
Size so that the type femoral bone end prosthesis with insert 12 can adapt in the patient of different physiology sclerotin.
In the present embodiment, laterally and/or longitudinally arrangement of multiple inserts 12 along femoral stem shank body 10.In the present invention
Insert 12 is arranged on the both sides of post holes 11, and has the insert of the row of two row three per side, selects suitable position to set appropriate
The insert 12 of 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 being adapted with stick harness 20.By post holes
11 are arranged to the wedge structure that is adapted with stick harness 20, enable to insert of the stick harness 20 effectively with being arranged in stick harness 20
12 protuberance 14 is in contact, and extruding occurs so that insert 12 stretches out from the inside of post holes 11 with protuberance 14.
Stick harness 20 is arranged to up big and down small type wedge structure, is easy to after type femoral bone end prosthesis is implanted into, and inserts femoral stem post holes
In 11.
In the present embodiment, insert 12 is elastic insert.Insert 12 is made of flexible material, and with
Femoral stem shank body 10 is formed and is wholely set.Because crucial prosthese of the human synovial after it can cause implantation during walking about occurs
Vibrations, and flexible insert 12 is used, cushioning effect can be played during type femoral bone end prosthesis shakes,
So as to 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 realize following technique effect：
Apply the technical scheme of the present invention, post holes is set in one end of femoral stem shank body, corresponding to the femoral stem handle of post holes
Mobilizable insert is provided with the outer peripheral face of one end of body, and the stick harness being inserted in post holes, the stick harness plugged promote position
Stretched out in the insert of the initial position in post holes towards the outside of outer peripheral face so that insert is located at receptacle location.By
Femoral stem shank body one end sets the insert with receptacle location, sets the type femoral bone end prosthesis with insert in implantation human body
Afterwards, the insert on type femoral bone end prosthesis is plugged in the physiology sclerotin of human body, is added the type femoral bone end prosthesis after implantation and is being implanted into
The stability in later stage.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
- A kind of 1. femoral stem, it is characterised in that including：Femoral stem shank body (10), one end of the femoral stem shank body (10) is provided with post holes (11), corresponding to the post holes (11) The femoral stem shank body (10) one end outer peripheral face on be provided with mobilizable insert (12), insert (12) bag Include the first elastic inserting paragraph (16) and the second elastic inserting paragraph (17) being connected with each other and with angle, the first elasticity insertion The first end of section (16) is connected to form corners with the first end of the described second elastic inserting paragraph (17), the insert (12) With the first position in the post holes (11) and the second place for protruding from the post holes (11) outer peripheral face, the insertion Part (12) has protuberance (14), and when the insert (12) is located at the first position, the protuberance (14) is located at institute State in post holes (11)；Stick harness (20), it is arranged in the post holes (11) and promotes the insertion of the initial position in the post holes (11) Part (12) stretches out towards the outside of the outer peripheral face, so that the insert (12) is located at receptacle location.
- 2. femoral stem according to claim 1, it is characterised in that corresponding to the femoral stem shank body of the post holes (11) (10) through hole (13) is offered on the outer peripheral face of one end, the insert (12) is arranged in the through hole (13), described to insert The initial position for entering part (12) is located at the inner side of the through hole (13), and the receptacle location of the insert (12) is located at the through hole (13) outside.
- 3. femoral stem according to claim 1, it is characterised in that the shape when insert (12) is located at the receptacle location Into there is bore spine portion (15).
- 4. femoral stem according to claim 3, it is characterised in that the protuberance (14) is in circular arc.
- 5. femoral stem according to claim 3, it is characterised in that the axis of the bore spine portion (15) and the post holes (11) Axis between angle be less than or equal to 90 degree.
- 6. femoral stem according to claim 1, it is characterised in that the insert (12) is multiple.
- 7. femoral stem according to claim 6, it is characterised in that the multiple insert (12) is along the femoral stem shank body (10) laterally and/or longitudinally arrangement.
- 8. femoral stem according to claim 2, it is characterised in that the stick harness (20) is wedge structure, the post holes (11) wedge structure to be adapted with the stick harness (20).
- 9. femoral stem according to claim 1, it is characterised in that the insert (12) is elastic 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 CN104825252A (en) | 2015-08-12 |
| CN104825252B true CN104825252B (en) | 2018-03-23 |
Family
ID=53803731
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) |
Families Citing this family (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 |
| 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 |
| CN110680564B (en) * | 2019-10-31 | 2025-01-21 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN110680565B (en) * | 2019-10-31 | 2025-05-30 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN116725748B (en) * | 2023-08-08 | 2023-11-24 | 北京爱康宜诚医疗器材有限公司 | Insertion prosthesis |
Citations (7)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8216320B2 (en) * | 2006-08-11 | 2012-07-10 | Howmedica Osteonics Corp. | Expanding trial stem for orthopaedic surgery |
-
2015
- 2015-05-26 CN CN201510275652.0A patent/CN104825252B/en active Active
Patent Citations (7)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104825252A (en) | 2015-08-12 |
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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. |