Invention (Patent): Haining Z.
Artificial total hip joint prosthesis with axially restrained anti-dislocation
structure. CN105105873A (2015). Machine translation from Chinese.
CN105105873A China
Inventor: Zhang Haining
Current Assignee: Shanghai longhui Medical Technology Co., Ltd.
Worldwide applications 2015 CN
Application CN201510360141.9A events:
2015-08-07 Application filed by Affiliated Hospital of University of Qingdao
2015-08-07 Priority to CN201510360141.9A
2015-12-02 Publication of CN105105873A
2017-06-20 Application granted
2017-06-20 Publication of CN105105873B
Status: Active
2035-08-07 Anticipated expiration
Artificial total hip joint
prosthesis with axially restrained anti-dislocation structure
Zhang Haining
Abstract
The invention provides a kind of artificial full-hip joint prosthese with
axially limitation anticreep bit architecture, including acetabular component,
liner, femoral head prosthesis, liner is located in the groove of acetabular
component, and femoral head prosthesis head is located in the groove of liner,
also including axially limitation anticreep bit architecture, be connected as a
single entity for above-mentioned three and its length and elasticity is can
adjust through the central part of acetabular component, liner and femoral head
prosthesis head by the anticreep bit architecture.Use this artificial full-hip
joint prosthese with axially limitation anticreep bit architecture; axial
traction action limitation femoral head prosthesis are obtained to deviate from
from acetabular component; reach the complication for decreasing or even
eliminating the dislocation of hip joint occurred after artificial total hip
arthroplasty; and the mobility of postoperative hip joint can be increased;
limitation requirement to the daily routines of postoperative patient is
reduced, and structure design is simple, simple operation; dismounting is easy,
is also beneficial to the taking-up of artificial full-hip joint prosthetic
loosening prosthese when overhauling.
Description
Artificial full-hip joint prosthese with axially limitation
anticreep bit architecture
Technical field
The invention belongs to medical apparatus technical field,
specifically, axially the anti-dislocation of limitation is adjustable to be
related to a kind of band The artificial full-hip joint prosthese of structure.
Background technology
Artificial total hip arthroplasty is to treat one of
maximally efficient means of hip joint disease in the world at present, its
treatment Effect obtains the consistent accreditation of doctor and patient in
worldwide.But the major complications of Post operation impact effect are to
close Section dislocation and range of motion reduction, reduce satisfaction to
a certain extent, extend recovery period, and increased operation Risk, while
also accordingly increasing to reduce requirement of the complication to
surgical technic.At present for the improvement on apparatus to subtract The
measure of dislocation risk less only carries out flash design to polyethylene
liner, but influence to displacement rate is limited, dislocation it is
concurrent Disease still has 3% or so, and the patient for there is dislocation
to be inclined to, and the especially needed one kind of patient once
dislocated can The artificial full-hip joint prosthese for limiting dislocation
occurs.
The content of the invention
It is false the invention provides a kind of artificial
full-hip joint with axially limitation anticreep bit architecture to solve
problem above Body, reaches reduction or prevents the complication of
postoperative artificial full-hip joint prothesis dislocation, and then it is
postoperative restricted to reach reduction patient Action, the purpose for
accelerating the course of convalescence.
In order to solve the above technical problems, the present
invention is achieved using following technical scheme：
A kind of artificial full-hip joint prosthese with axially
limitation anticreep bit architecture, including acetabular component, liner,
femoral head are false Body, femoral head prosthesis include femoral head
prosthesis head and neck, and the central part of wherein head has bellmouth,
the end of neck Stretch into and taper fit is realized in the bellmouth, the
liner is located in the groove of acetabular component, femoral head prosthesis
head is located at interior In the groove of lining, also including axially
limitation anticreep bit architecture, the anticreep bit architecture is false
through acetabular component, liner and femoral head The central part of body
head, above-mentioned three is connected as a single entity and elasticity is
adjustable, effectively prevents femoral head prosthesis from deviating from
from liner.
Further, the axially limitation anticreep bit architecture
includes two button plates and artificial ligament structure, each button Two
through holes are opened up on plate, the central part of the acetabular
component opens up first through hole, and the central part of liner opens up
second and leads to Hole, the central part of femoral head prosthesis head
opens up third through-hole, and the first to the third through-hole and
bellmouth are corresponding, One of button plate is located in first through
hole, and another button plate is located in the bellmouth on the outside of
third through-hole, described artificial tough Band structure sequentially
passes through two through holes of button plate respectively, and two button
plates are connected as a single entity, so as to by acetabular component,
interior be lined with And femoral head prosthesis are connected as a single
entity.
Further, the first through hole is shoulder hole, and
Outboard Sections are more than inboard portion, and the button plate is
located at outside Part is interior and is stuck at the step of shoulder hole.
Further, described second, third through hole is identical
with the inboard portion size of first through hole, respectively less than
first through hole Outboard Sections, while again smaller than the size of
bellmouth, so two button plates are just stuck in the Outboard Sections of
first through hole And in bellmouth.Here, the size of second, third through
hole is less than the size of the smallest end of bellmouth.
Further, the edge rounding off of first, second, third
through hole.The edge in hole is smooth zone radian Avoid to causing cutting by
the artificial ligament structure in it.
Further, the cross section of first, second, third through
hole is circular, square or polygon.
Further, the outward flange of the button plate in first
through hole is concordant with the outward flange of acetabular component or
less than hip The outward flange of mortar prosthese.
Further, the liner is using polyethylene, ceramics or metal
material.
Further, the button plate is metal button plate.
Further, the artificial ligament structure uses polyester
fiber or other materials, with elasticity, can adjust it nervous Degree.
Artificial full-hip joint prosthese of the invention is made
by designing axially limitation anticreep bit architecture using axially
drawing limitation With reaching the purpose that prevents femoral head
prosthesis from being dislocated from acetabular component, due to this axially
limitation anticreep bit architecture there is elasticity, Its length and
tension force can be adjusted, adjustable anticreep bit architecture is formed.
Compared with prior art, advantages and positive effects of
the present invention are：
Using this artificial full-hip joint prosthese with axially
limitation anticreep bit architecture, due to obtaining axial traction action
limit The effect that femoral head prosthesis processed are deviate from from
acetabular component, the round ligament of femur of the similar Normal Hip of
its effect, so that can The complication of the dislocation of hip joint
occurred after artificial total hip arthroplasty is decreased or even
eliminated to reach, the edge in hole is smooth Avoided to causing cutting by
the structure in it with radian.Simultaneously as this axially limits anticreep
bit architecture has certain length Degree and elasticity, therefore prothesis
dislocation risk caused by the shock to the neck of femur part and acetabular
component edge of prosthese is reduced, So the mobility of postoperative hip
joint can be increased, the limitation requirement to the daily routines of
postoperative patient is reduced.Also, this is axially limited Anticreep bit
architecture design processed is simple, and simple operation, dismounting is
easy, is also beneficial to the vacation when overhauling of artificial
full-hip joint prosthetic loosening The taking-up of body.
Brief description of the drawings
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.
Specific embodiment
The present invention is further detailed explanation with
reference to the accompanying drawings and detailed description.
In the description of the invention, it is to be understood
that the orientation of the instruction such as term " center ",
" longitudinal direction ", " interior ", " outward
" Or position relationship is, based on orientation shown in the drawings
or position relationship, to be for only for ease of the description present
invention and simplify description, and Be not indicate or imply meaning device
or element must have specific orientation, with specific azimuth configuration
and operation, therefore It is not considered as limiting the
invention.Additionally, term " first ", " second " are only
used for describing purpose, and it is not intended that referring to Show or
imply relative importance or the implicit quantity for indicating indicated
technical characteristic.Thus, " first ", " second " are
defined Feature can express or implicitly include one or more this feature.In
the description of the invention, unless otherwise saying Bright, "
multiple " is meant that two or more.
Although existing artificial total hip arthroplasty is
obtained in that good clinical effectiveness such as pain of alleviation etc.,
postoperative de- The complication of position, and femoral head prosthesis
neck and acetabular component shock, mobility reduction etc. affects
postoperative effect, especially Its for exist the dislocation of hip joint
tendency, or once occurred the dislocation of hip joint patient it is even more
so.Conventional method is such as in poly- second The mode effect such as
lining increase flash is substantially limited in alkene.Therefore, the present
invention proposes that one kind can reduce or even prevent wind of dislocating
The artificial full-hip joint prosthese of danger.
Embodiment 1
With reference to shown in Fig. 1, the embodiment is a kind
of artificial full-hip joint prosthese with axially limitation anticreep bit
architecture, including Acetabular component 1, liner 2, femoral head
prosthesis 3, femoral head prosthesis 3 include femoral head prosthesis head 31
and neck 32, wherein head 31 central part has bellmouth 311, and the end of
neck 32 is stretched into the bellmouth 311 and realizes taper fit, and liner 2
is located at In the groove of acetabular component 1, femoral head prosthesis
head 31 is located in the groove of liner 2, in acetabular component 1, liner 2
and femur The central part of head prosthesis head 31 has also extended through
axially limitation anticreep bit architecture, and above-mentioned three is
linked as one by the anticreep bit architecture Body and elasticity it is
adjustable, effectively prevent femoral head prosthesis 3 from deviating from
from liner 2.Wherein, liner uses polythene material.
Specifically,
Axially limitation anticreep bit architecture includes metal
button plate 4, metal button plate 5 and artificial ligament structure 6, each
button Open up two through holes on plate, the structure of metal button plate
4 as shown in Figure 2 opens up two through holes 41, while in acetabular bone
thereon The central part of prosthese 1 opens up first through hole 11, and the
central part of liner 2 opens up the second through hole 21, femoral head
prosthesis head 32 Central part open up third through-hole 312, the first to
third through-hole and bellmouth are just corresponded to, first, second, third
through hole Cross section for circle.
Wherein, first through hole 11 is shoulder hole, including
larger Outboard Sections 111 and less inboard portion 112, metal Button plate 4
is located in Outboard Sections 111 and is stuck at the step of shoulder hole,
and the outward flange 4 of button plate 4 is less than acetabular component 1
outward flange, prevents interference.
Second through hole 21, third through-hole 312 are identical
with the size of inboard portion 112 of first through hole, respectively less
than first through hole Outboard Sections 111, while the size of the smallest
end again smaller than bellmouth 311.Metal button plate 5 is stuck in outside
third through-hole 312 The bottom of the bellmouth 311 of side；
As seen from Figure 1, two button plates are just stuck in
the Outboard Sections 111 of first through hole 11 and in bellmouth 311,
Artificial ligament structure 6 sequentially passes through two through holes
of button plate respectively, and two button plates are connected as a single
entity, so as to by acetabular component 1st, liner 2 and femoral head
prosthesis 3 are connected as a single entity.Artificial ligament structure 6
uses Polyester Fibers, can adjust its length and opens Power, forms adjustable
anticreep bit architecture, the size of limitation dislocation strength as
needed, can adjust its tensioning degree, utilizes The axial direction drawing
restriction effect of artificial ligament structure reaches the purpose for
preventing femoral head prosthesis from being dislocated from acetabular
component.Using The good biocompatibility of Polyester Fibers manufacturing
artificial ligament structure, is not easy to be ostracised in human body, and
wear-resistant.
In order to prevent through hole from cutting is caused to
artificial ligament structure 6, the edge of first, second, third through hole
is band Radian, rounding off.
Accommodated axially by being opened up in the acetabular
component in existing artificial full-hip joint prosthese, liner and femoral
head prosthesis The hole of anticreep bit architecture is limited, axially
limitation anticreep bit architecture is fitted into, obtain axial traction
action, prevent femoral head Prosthese is deviate from from acetabular
component, and the edge for accommodating the axially hole of limitation
anticreep bit architecture is band radian smooth structure, will not be right
Artificial ligament causes cutting.
Specific surgical operation step：
In operation after being prepared to acetabular component
bottom and finishing, will axial limitation anticreep bit architecture
acetabular bone side metal After button plate connection artificial ligament
structure, it is placed in the first through hole in the middle part of metal
acetabulum prosthese, then by common artificial complete Hip joint replacement
technique squeezes into metal acetabulum prosthese.Again by artificial ligament
structure through the second through hole in the middle part of polyethylene
liner It is interior, polyethylene liner is squeezed into metal acetabulum
prosthese.Then by artificial ligament structure through femoral head prosthesis
head center In third through-hole, femur rostral Metal buttonses plate is then
passed through, femoral head prosthesis head is placed in polyethylene liner,
by femur Rostral metallic button buckle is shifted onto in femoral head
prosthesis head and carries out the bellmouth inner bottom part that taper is
matched with femoral head and neck.According to The size of the limitation
dislocation strength of needs, adjusts the appropriate length and tension force
of artificial ligament structure, by artificial ligament structure in stock
Knotted between the holes of bone side metallic button buckle and fixed.Then
femoral head prosthesis neck is reset in femoral head prosthesis head, Complete
the placement of total hip prosthesis.
Certainly, the cross section of first, second, third through
hole in above-described embodiment can also be square or polygon, root
Factually border processing technology determines shape, and inner lining
material therein can also be using ceramics or metal.
The above, is only presently preferred embodiments of the
present invention, is not the limitation for making other forms to the present
invention, is appointed What those skilled in the art changed possibly also
with the technology contents of the disclosure above or be modified as
equivalent variations etc. Effect embodiment.But it is every without departing
from technical solution of the present invention content, according to technical
spirit of the invention to above example institute Any simple modification,
equivalent variations and the remodeling made, still fall within the protection
domain of technical solution of the present invention.
Claims:
1. a kind
of artificial full-hip joint prosthese with axially limitation anticreep bit
architecture, including acetabular component, liner, femoral head is false
Body, femoral head prosthesis include femoral head prosthesis head and neck,
and the central part of wherein head has bellmouth, the end of neck Stretch
into and taper fit is realized in the bellmouth, the liner is located in the
groove of acetabular component, femoral head prosthesis head is located at
interior In the groove of lining, it is characterised in that：Also include axially limitation anticreep bit architecture, the
anticreep bit architecture is through the center of acetabular component The
central part at position, the central part of liner and femoral head prosthesis
head, by the acetabular component, liner and femoral head Prosthese head is
connected as a single entity and elasticity is adjustable；
The axially
limitation anticreep bit architecture includes two button plates and artificial
ligament structure, two is opened up on each button plate and is led to Hole,
the central part of the acetabular component opens up first through hole, and
the central part of liner opens up the second through hole, femoral head
prosthesis head The central part in portion opens up third through-hole, and
first, second, and third through hole and bellmouth are corresponding, one of
knob Buckle is located in first through hole, and another button plate is
located in the bellmouth on the outside of third through-hole, the artificial
ligament structure difference Two through holes of button plate are
sequentially passed through, two button plates are connected as a single entity；
The first
through hole is shoulder hole, and Outboard Sections are more than inboard
portion, and the button plate is located in Outboard Sections and is stuck in
At the step of shoulder hole；
The inboard
portion of the first through hole, the second through hole and third
through-hole size are identical, respectively less than the outside of first
through hole Part, while again smaller than the size of bellmouth.
2.
artificial full-hip joint prosthese according to claim 1, it is characterised
in that：First, second, and third through hole Edge rounding off.
3.
artificial full-hip joint prosthese according to claim 1, it is characterised
in that：First, second, and third through hole Cross section is circular or
polygon.
4.
artificial full-hip joint prosthese according to claim 1, it is characterised
in that：Button plate in first through hole it is outer Edge is concordant with
the outward flange of acetabular component or outward flange less than
acetabular component.
5.
artificial full-hip joint prosthese according to claim 1, it is characterised
in that：The liner using polyethylene, ceramics or Metal material.
6.
artificial full-hip joint prosthese according to claim 1, it is characterised
in that：The button plate is metal button plate.
7. artificial full-hip joint prosthese according to claim 1, it is characterised in that：The artificial ligament structure has elasticity.
External links
Haining Z. Artificial total hip joint prosthesis with axially restrained anti-dislocation structure. CN105105873A August 7, 2015. 2015. patents.google
Publications
of invention
CN105105873 (А)
CN105105873 (B)
2015HainingZ
Authors & Affiliations
张海宁 (Zhang Haining) – China.
Keywords
ligamentum capitis femoris, ligamentum teres, ligament
of head of femur, endoprosthesis, prosthesis,
invention, bipolar, total
NB! Fair practice / use: copied for the purposes of criticism, review, comment, research and private study in accordance with Copyright Laws of the US: 17 U.S.C. §107; Copyright Law of the EU: Dir. 2001/29/EC, art.5/3a,d; Copyright Law of the RU: ГК РФ ст.1274/1.1-2,7
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