CN105105873A - Artificial whole hip joint prosthesis having axial limiting and anti-dislocation structure - Google Patents
Artificial whole hip joint prosthesis having axial limiting and anti-dislocation structure Download PDFInfo
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- CN105105873A CN105105873A CN201510360141.9A CN201510360141A CN105105873A CN 105105873 A CN105105873 A CN 105105873A CN 201510360141 A CN201510360141 A CN 201510360141A CN 105105873 A CN105105873 A CN 105105873A
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Abstract
The invention provides an artificial whole hip joint prosthesis having an axial limiting and anti-dislocation structure. The artificial whole hip joint prosthesis comprises an acetabular prosthesis, an inner liner and a caput femoris prosthesis. The inner liner is arranged in a groove of the acetabular prosthesis, and the caput femoris prosthesis is arranged in a groove of the inner liner. The artificial whole hip joint prosthesis further comprises an axial limiting and anti-dislocation structure, the axial limiting and anti-dislocation structure penetrates the central portions of the acetabular prosthesis, the inner liner and the caput femoris prosthesis to connecting the acetabular prosthesis, the inner liner and the caput femoris prosthesis together to form a whole body, and the length and the elasticity of the whole body can be adjusted. The artificial whole hip joint prosthesis having the axial limiting and anti-dislocation structure can prevent the caput femoris prosthesis from coming out of the acetabular prosthesis through an axial drawing effect, complication, generated after total hip replacement arthroplasty, of dislocation of a hip joint can be reduced even eliminated, the activity of a postoperative hip joint can be improved, and limit on postoperative patient's daily movement is less. The artificial whole hip joint prosthesis having the axial limiting and anti-dislocation structure is simple in structure designe, convenient to operate and easy to dismount, and the artificial whole hip joint prosthesis can be conveniently taken out when the artificial whole hip joint prosthesis loosens or is overhauled.
Description
Technical field
The invention belongs to medical apparatus technical field, specifically, relating to a kind of artificial full-hip joint prosthese with axially limiting the adjustable structure of anti-dislocation.
Background technology
Artificial total hip arthroplasty treats at present one of the most effective means of hip joint disease in the world, and its therapeutic effect obtains the consistent accreditation of doctor and patient in worldwide.But the major complications of Post operation impact effect is that joint dislocation and range of motion reduce, reduce satisfaction to a certain extent, extending recovery period, and add operation risk, increasing the requirement of surgical technic is also corresponding for reducing this complication simultaneously.At present for the improvement on apparatus so that the measure reducing dislocation risk only has carry out flash design to polyethylene liner, but it is limited on the impact of displacement rate, the complication of dislocation still has about 3%, and for there being the patient of dislocation tendency, and the patient once occurring to dislocate especially needs a kind of artificial full-hip joint prosthese that can limit dislocation to occur.
Summary of the invention
For overcoming the above problems, the invention provides a kind of artificial full-hip joint prosthese with axially limiting anticreep bit architecture, reach and reduce or stop the complication of postoperative artificial full-hip joint prothesis dislocation, and then reach and reduce restricted action after operation in patients, the object accelerated the course of convalescence.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of artificial full-hip joint prosthese with axially limiting anticreep bit architecture, comprise acetabular component, liner, femoral head prosthesis, femoral head prosthesis comprises femoral head prosthesis head and cervical region, wherein the central part of head has bellmouth, the end of cervical region is stretched in this bellmouth and is realized taper fit, described liner is positioned at the groove of acetabular component, femoral head prosthesis head is positioned at the groove of liner, also comprise axially restriction anticreep bit architecture, this anticreep bit architecture runs through acetabular component, the central part of liner and femoral head prosthesis head, above-mentioned three to be connected as a single entity and elasticity is adjustable, effectively prevent femoral head prosthesis from deviating from from liner.
Further, described axially restriction anticreep bit architecture comprises two button plates and artificial ligament structure, each button plate is offered two through holes, the central part of described acetabular component offers the first through hole, the central part of liner offers the second through hole, the central part of femoral head prosthesis head offers third through-hole, described the first to third through-hole, and bellmouth is corresponding, one of them button plate is positioned at the first through hole, another button plate is located in the bellmouth outside third through-hole, described artificial ligament structure is respectively successively through the through hole of two button plates, two button plates are connected as a single entity, thus by acetabular component, liner and femoral head prosthesis are connected as a single entity.
Further, described first through hole is shoulder hole, and Outboard Sections is greater than inboard portion, and described button plate is positioned at Outboard Sections and is stuck in the step place of shoulder hole.
Further, second, third through hole described is identical with the inboard portion size of the first through hole, all be less than the Outboard Sections of the first through hole, be also less than the size of bellmouth simultaneously, thus two button plates be just in time stuck in the first through hole Outboard Sections in and in bellmouth.Here, the size of second, third through hole is the size of the smallest end being less than bellmouth.
Further, edge's rounding off of described first, second, third through hole.The edge in hole is that smooth zone radian is avoided causing cutting to by the artificial ligament structure in it.
Further, the cross section of described first, second, third through hole is circular, square or polygon.
Further, the outward flange of the button plate of the first through hole is positioned at concordant with the outward flange of acetabular component or lower than the outward flange of acetabular component.
Further, described liner adopts polyethylene, pottery or metal material.
Further, described button plate is metal button plate.
Further, described artificial ligament structure adopts polyester fiber or other materials, has elasticity, its tensity of scalable.
Artificial full-hip joint prosthese of the present invention is by design axially restriction anticreep bit architecture, axial tractive restriction is utilized to reach the object preventing femoral head prosthesis from dislocating from acetabular component, because this axis restriction anticreep bit architecture has elasticity, its length and tension force can be regulated, form adjustable anticreep bit architecture.
Compared with prior art, advantage of the present invention and good effect are:
This band is used axially to limit the artificial full-hip joint prosthese of anticreep bit architecture, owing to obtaining the effect that axial traction action restriction femoral head prosthesis is deviate from acetabular component, it acts on the round ligament of femur of similar Normal Hip, thus the complication of the dislocation of hip joint occurred after artificial total hip arthroplasty is even eliminated in minimizing can be reached, the edge in hole is that smooth zone radian is avoided causing cutting to by the structure in it.Simultaneously; because this axially limits anticreep bit architecture, there is certain length and elasticity; because this reducing the prothesis dislocation risk caused the neck of femur part of prosthese and the shock at acetabular component edge; so the mobility of postoperative hip joint can be increased, require to reduce to the restriction of the daily routines of postoperative patient.Further, this is restriction anticreep bit architecture simplicity of design axially, and simple operation, dismounting easily, is also conducive to the taking-up of artificial full-hip joint prosthetic loosening prosthese when overhauling.
Accompanying drawing explanation
Fig. 1 is the longitudinal cross section of artificial full-hip joint prosthese specific embodiment of the present invention;
Fig. 2 is the structural representation of button plate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " central authorities ", " longitudinal direction ", " interior ", " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Although existing artificial total hip arthroplasty can obtain good clinical effectiveness as alleviating pain etc., but the complication of postoperative dislocation, and the shock of femoral head prosthesis cervical region and acetabular component, mobility reduction etc. all affects postoperative effect, especially for there is dislocation of hip joint tendency, or the patient that dislocation of hip joint once occurred is all the more so.Traditional method is as limited in increased the mode successfuls such as flash on polyethylene liner.Therefore, the present invention proposes a kind of can minimizing and even stops the artificial full-hip joint prosthese of risk of dislocating.
Embodiment 1
Shown in figure 1, this embodiment is a kind of artificial full-hip joint prosthese with axially limiting anticreep bit architecture, comprise acetabular component 1, liner 2, femoral head prosthesis 3, femoral head prosthesis 3 comprises femoral head prosthesis head 31 and cervical region 32, wherein the central part of head 31 has bellmouth 311, the end of cervical region 32 is stretched in this bellmouth 311 and is realized taper fit, liner 2 is positioned at the groove of acetabular component 1, femoral head prosthesis head 31 is positioned at the groove of liner 2, at acetabular component 1, the central part of liner 2 and femoral head prosthesis head 31 also runs through axially restriction anticreep bit architecture, this anticreep bit architecture is connected as a single entity at above-mentioned three and elasticity is adjustable, effectively prevent femoral head prosthesis 3 from deviating from from liner 2.Wherein, liner adopts polythene material.
Specifically,
Axially restriction anticreep bit architecture comprises metal button plate 4, metal button plate 5 and artificial ligament structure 6, each button plate is offered two through holes, the structure of metal button plate 4 as shown in Figure 2, offer two through holes 41 thereon, offer the first through hole 11 at the central part of acetabular component 1 simultaneously, the central part of liner 2 offers the second through hole 21, the central part of femoral head prosthesis head 32 offers third through-hole 312, the first to third through-hole and bellmouth are just corresponding, and the cross section of first, second, third through hole is circular.
Wherein, first through hole 11 is shoulder hole, comprises larger Outboard Sections 111 and less inboard portion 112, and metal button plate 4 is positioned at Outboard Sections 111 and is stuck in the step place of shoulder hole, and the outward flange 4 of button plate 4 is lower than the outward flange of acetabular component 1, prevent to interfere.
Second through hole 21, third through-hole 312 are identical with inboard portion 112 size of the first through hole, are all less than the Outboard Sections 111 of the first through hole, are also less than the size of the smallest end of bellmouth 311 simultaneously.Metal button plate 5 is stuck in the bottom of the bellmouth 311 outside third through-hole 312;
As seen from Figure 1, in the Outboard Sections 111 that two button plates are just in time stuck in the first through hole 11 and in bellmouth 311, two button plates successively through the through hole of two button plates, are connected as a single entity, thus acetabular component 1, liner 2 and femoral head prosthesis 3 are connected as a single entity by artificial ligament structure 6 respectively.Artificial ligament structure 6 adopts Polyester Fibers, its length of scalable and tension force, form adjustable anticreep bit architecture, the size of restriction dislocation strength as required, its tensioning degree of scalable, utilizes the axial tractive restriction of artificial ligament structure to reach the object preventing femoral head prosthesis from dislocating from acetabular component.Adopt the good biocompatibility of Polyester Fibers manufacturing artificial ligament structure, be not easy to be ostracised in human body, and wear-resistant.
In order to prevent through hole from causing cutting to artificial ligament structure 6, the edge of first, second, third through hole is all band radians, rounding off.
By offering the hole holding axially restriction anticreep bit architecture in acetabular component, liner and the femoral head prosthesis in existing artificial full-hip joint prosthese, install axially limiting anticreep bit architecture wherein, obtain axial traction action, prevent femoral head prosthesis from deviating from acetabular component, hold the edge in the hole of axially restriction anticreep bit architecture for band radian smooth structure, cutting can not be caused to artificial ligament.
Concrete surgical operation step:
In operation to carry out bottom acetabular component ready after, after the acetabular bone side metallic button buckle axially limiting anticreep bit architecture is connected artificial ligament structure, be placed in the first through hole in the middle part of metal acetabulum prosthese, then squeeze into metal acetabulum prosthese by common artificial total hip arthroplasty.Again artificial ligament structure is passed in the second through hole in the middle part of polyethylene liner, polyethylene liner is squeezed in metal acetabulum prosthese.Then artificial ligament structure is passed in the third through-hole of femoral head prosthesis head central authorities, again through femoral head side metallic button buckle, femoral head prosthesis head is placed in polyethylene liner, femoral head side metallic button buckle is shifted in femoral head prosthesis head onto the bellmouth inner bottom part carrying out tapering with femoral head and neck and mate.The size of restriction dislocation strength as required, the appropriate length of adjustment artificial ligament structure and tension force, tie a knot artificial ligament structure between the holes of femoral head side metallic button buckle fixing.Then femoral head prosthesis cervical region is reset in femoral head prosthesis head, completes laying of total hip prosthesis.
Certainly, the cross section of first, second, third through hole in above-described embodiment can also be square or polygon, and determine shape according to actual processing technique, inner lining material wherein can also adopt pottery or metal.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. the artificial full-hip joint prosthese with axially limiting anticreep bit architecture, comprise acetabular component, liner, femoral head prosthesis, femoral head prosthesis comprises femoral head prosthesis head and cervical region, wherein the central part of head has bellmouth, the end of cervical region is stretched in this bellmouth and is realized taper fit, described liner is positioned at the groove of acetabular component, femoral head prosthesis head is positioned at the groove of liner, it is characterized in that: also comprise axially restriction anticreep bit architecture, this anticreep bit architecture runs through acetabular component, the central part of liner and femoral head prosthesis head, above-mentioned three to be connected as a single entity and elasticity is adjustable.
2. artificial full-hip joint prosthese according to claim 1, it is characterized in that: described axially restriction anticreep bit architecture comprises two button plates and artificial ligament structure, each button plate is offered two through holes, the central part of described acetabular component offers the first through hole, the central part of liner offers the second through hole, the central part of femoral head prosthesis head offers third through-hole, described the first to third through-hole, and bellmouth is corresponding, one of them button plate is positioned at the first through hole, another button plate is located in the bellmouth outside third through-hole, described artificial ligament structure is respectively successively through the through hole of two button plates, two button plates are connected as a single entity.
3. artificial full-hip joint prosthese according to claim 2, it is characterized in that: described first through hole is shoulder hole, and Outboard Sections is greater than inboard portion, described button plate is positioned at Outboard Sections and is stuck in the step place of shoulder hole.
4. artificial full-hip joint prosthese according to claim 2, is characterized in that: second, third through hole described is identical with the inboard portion size of the first through hole, is all less than the Outboard Sections of the first through hole, is also less than the size of bellmouth simultaneously.
5. artificial full-hip joint prosthese according to claim 2, is characterized in that: edge's rounding off of described first, second, third through hole.
6. artificial full-hip joint prosthese according to claim 2, is characterized in that: the cross section of described first, second, third through hole is circular, square or polygon.
7. artificial full-hip joint prosthese according to claim 2, is characterized in that: be positioned at the outward flange of the button plate of the first through hole concordant with the outward flange of acetabular component or lower than the outward flange of acetabular component.
8. artificial full-hip joint prosthese according to claim 2, is characterized in that: described liner adopts polyethylene, pottery or metal material.
9. artificial full-hip joint prosthese according to claim 2, is characterized in that: described button plate is metal button plate.
10. artificial full-hip joint prosthese according to claim 2, is characterized in that: described artificial ligament structure has elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360141.9A CN105105873B (en) | 2015-08-07 | 2015-08-07 | Artificial full-hip joint prosthese with axially limitation anticreep bit architecture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360141.9A CN105105873B (en) | 2015-08-07 | 2015-08-07 | Artificial full-hip joint prosthese with axially limitation anticreep bit architecture |
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| CN105105873A true CN105105873A (en) | 2015-12-02 |
| CN105105873B CN105105873B (en) | 2017-06-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518963A (en) * | 2017-08-24 | 2017-12-29 | 北京爱康宜诚医疗器材有限公司 | Full hip-joint prosthese |
| CN109998738A (en) * | 2018-01-05 | 2019-07-12 | 北京蒙太因医疗器械有限公司 | Ball and socket joint prosthesis assembly |
| CN111568608A (en) * | 2020-04-17 | 2020-08-25 | 张永飞 | Bionic hip joint |
| CN113456306A (en) * | 2021-06-21 | 2021-10-01 | 北京力达康科技有限公司 | Hip joint prosthesis |
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| US5702474A (en) * | 1996-01-22 | 1997-12-30 | Mccandliss; Robert | Coaxial ligamented hip prosthesis |
| US20080177395A1 (en) * | 2007-01-19 | 2008-07-24 | Albert Stinnette | Socket and prosthesis for joint replacement |
| US20090076604A1 (en) * | 2007-09-17 | 2009-03-19 | Lanares Medical Devices, Llc | Artificial ligaments for joint applications |
| US20090182335A1 (en) * | 2007-11-05 | 2009-07-16 | Steven Struhl | Device for treatment of acromioclavicular joint dislocations |
| US20120130492A1 (en) * | 2009-04-28 | 2012-05-24 | Stefan Eggli | Implantable system having a dissolution mechanism upon recovery |
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2015
- 2015-08-07 CN CN201510360141.9A patent/CN105105873B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702474A (en) * | 1996-01-22 | 1997-12-30 | Mccandliss; Robert | Coaxial ligamented hip prosthesis |
| US20080177395A1 (en) * | 2007-01-19 | 2008-07-24 | Albert Stinnette | Socket and prosthesis for joint replacement |
| US20090076604A1 (en) * | 2007-09-17 | 2009-03-19 | Lanares Medical Devices, Llc | Artificial ligaments for joint applications |
| US20090182335A1 (en) * | 2007-11-05 | 2009-07-16 | Steven Struhl | Device for treatment of acromioclavicular joint dislocations |
| US20120130492A1 (en) * | 2009-04-28 | 2012-05-24 | Stefan Eggli | Implantable system having a dissolution mechanism upon recovery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518963A (en) * | 2017-08-24 | 2017-12-29 | 北京爱康宜诚医疗器材有限公司 | Full hip-joint prosthese |
| CN107518963B (en) * | 2017-08-24 | 2023-12-19 | 北京爱康宜诚医疗器材有限公司 | Total hip joint prosthesis |
| CN109998738A (en) * | 2018-01-05 | 2019-07-12 | 北京蒙太因医疗器械有限公司 | Ball and socket joint prosthesis assembly |
| CN111568608A (en) * | 2020-04-17 | 2020-08-25 | 张永飞 | Bionic hip joint |
| CN113456306A (en) * | 2021-06-21 | 2021-10-01 | 北京力达康科技有限公司 | Hip joint prosthesis |
| CN113456306B (en) * | 2021-06-21 | 2023-10-13 | 北京力达康科技有限公司 | Hip joint prosthesis |
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| Publication number | Publication date |
|---|---|
| CN105105873B (en) | 2017-06-20 |
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Effective date of registration: 20180925 Address after: 201203 China (Shanghai) free trade pilot area, Cai Lun Road 1690, 2 building, 311 room. Patentee after: Shanghai longhui Medical Technology Co., Ltd. Address before: 266000 joint surgery, Affiliated Hospital of Qiingdao University, 59 Haier Road, Qingdao, Shandong Patentee before: Affiliated Hospital of University Of Qingdao |