CN206934218U - A kind of metal outer cup and acetabular bone system - Google Patents
A kind of metal outer cup and acetabular bone system Download PDFInfo
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- CN206934218U CN206934218U CN201720104768.2U CN201720104768U CN206934218U CN 206934218 U CN206934218 U CN 206934218U CN 201720104768 U CN201720104768 U CN 201720104768U CN 206934218 U CN206934218 U CN 206934218U
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- metal outer
- acetabular bone
- outer cup
- cup
- cup body
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Abstract
The utility model provides a kind of metal outer cup and acetabular bone system, is related to joint prosthesis technical field.The metal outer cup includes cup body；The cup body is outer shaped like the bowl-shape of back-off, and the lateral wall of the cup body is provided with the annular ridge of the circumferentially extending along the cup body；The inner chamber of the cup body is arranged to taper type cavity；Screwed hole is provided with the top of the cup body.The acetabular bone system includes metal outer cup, acetabular bone liner and mounting screw；The acetabular bone liner is socketed in the madial wall of the metal outer cup, and the mounting screw coordinates with fixing hole.Metal outer cup and acetabular bone system of the present utility model, annular ridge is set in the lateral wall of cup body, the combination of metal outer cup and hipbone sclerotin is greatly facilitated, improves the stability of metal outer cup；And the inner chamber of cup body is arranged to taper type cavity, acetabular bone liner is bored with metal outer cup and coordinate, farthest reduce the relatively movable of contact component, the risk that the rupture of reduction acetabular bone liner and particle disengage.
Description
Technical field
It the utility model is related to joint prosthesis technical field, more particularly to a kind of metal outer cup and acetabular bone system.
Background technology
Human hip is a kind of spherical joint, comprising a spherical femoral head and one like bowl-shape acetabular bone.Its
The joint formed by thigh (femur) and pelvis, spherical top layer and bowl endosexine cover by smooth cartilage, sliding
Cyst membrane secreting mucus make friction be reduced to minimum.When hip joint produce lesion when, cartilage is no longer smooth, synovial bursae inflammation and wither
Contracting, joint can not as usual be gone slick again.When hip joint because degeneration, lesion or wound cause pain, stiff or change
Shape, or even handicapped, when can not be with medicine or other treatment method relief of symptoms, it will usually put in a manner of operation for patient
Artificial hip joint is changed, patient is recovered daily mobility.
Artificial hip joint includes two parts：Acetabular bone system and femoral stem.And acetabular bone system generally includes three parts：Gold
Belong to outer cup, acetabular bone liner and mounting screw.
Fig. 1 is the structural representation of the metal outer cup of prior art.As shown in figure 1, in conventional art, artificial hip joint
Metal outer cup is fixedly connected using neck locking mechanism with acetabular bone liner.The neck locking mechanism requires that the inner chamber of metal outer cup must
The neck corresponding with acetabular bone liner must be provided with, and neck largely reduces the mechanical strength of metal outer cup.Simultaneously
There is provided the metal outer cup of neck generally with polythene material made of acetabular bone liner be used cooperatively, metal outer cup and acetabular bone liner
Between inevitably there is gap, so as to relative trickle activity occur, cause the contact surface of metal outer cup and acetabular bone liner
Wear.
Utility model content
The purpose of this utility model is to provide a kind of metal outer cup and acetabular bone system, to solve acetabular bone of the prior art
Bad mechanical strength existing for system and its metal outer cup, easily cause to occur gap because of abrasion and the problems such as particle disengages.
To achieve these goals, the utility model uses following technical scheme：
A kind of metal outer cup provided by the utility model, including cup body；The cup body is outer shaped like the bowl-shape of back-off, institute
The lateral wall for stating glass body is provided with the annular ridge of the circumferentially extending along the cup body；The inner chamber of the cup body is arranged to
Taper type cavity；Screwed hole is provided with the top of the cup body.
Further, in addition to fixing hole, the fixing hole are arranged in the side wall of the cup body.The skill of the technical scheme
Art effect is：Fixing hole is to lay mounting screw.It is unfavorable for the fixed patient of installation for sclerotin, implantation can be used
The mode of mounting screw carries out auxiliary fixation, and the quantity for being implanted into mounting screw selects as the case may be.For sclerotin just
Normal patient, it may not be necessary to be implanted into mounting screw.Preferably, fixing hole is counter sink, and the number of fixing hole and mounting screw
Amount is consistent, is traditionally arranged to be 3.
Further, the outer surface of the metal outer cup is provided with titanium sprayed coating.The technical scheme has technical effect that：Titanium
The effect of sprayed coating is that induction sclerotin is grown into, the fixation of assistant reinforcement metal outer cup and sclerotin.And above-mentioned annular ridge is gold
Belong to the main fixed structure of outer cup and sclerotin.
Further, the surface of the titanium sprayed coating is micropore mat surface.The technical scheme has technical effect that：Micropore is thick
Matte provides more multiple hole, and the hole of mat surface is cranky, is well suited for the fixation of sclerotin.
Further, groove, the end face overhauled groove and be arranged on the downside of the cup body are overhauled in addition to.The technical scheme
Have technical effect that：Overhaul groove be in order to overhaul afterwards during be easy to by acetabular bone liner take out repair or change.
The utility model also provides a kind of acetabular bone system, including above-mentioned metal outer cup, and acetabular bone liner and installation spiral shell
Nail；The acetabular bone liner is socketed in the madial wall of the metal outer cup, and the mounting screw coordinates with the fixing hole.
Further, the metal outer cup is connected with the acetabular bone liner for cone.The technique effect of the technical scheme exists
In：It is higher to bore the degree of cooperation being connected, and metal outer cup does not produce relative displacement with acetabular bone liner, it is not easy to which generation rubs
Wipe particle.
Further, the material of the acetabular bone liner is ceramics or ultra-high molecular weight polyethylene.The technology of the technical scheme
Effect is：Coordinate on the outside of acetabular bone liner with metal outer cup cone, inner side is connected with femoral ball head shoot face.Metal outer cup material is gold
Category, femur bulb material are ceramics or cobalt chrome molybdenum material.Therefore acetabular bone Lining Selection ceramics or ultra-high molecular weight polyethylene material.
The smooth friction of ceramics is small, and acetabular bone liner made of superhigh molecular weight polyethylene material, its thermal deformation performance, anti-wear performance have
Larger raising, and acetabular bone liner is rapid as high polymer material production shaping, can substantially reduce cost.
Further, the material of the mounting screw is titanium alloy.The technical scheme has technical effect that：Titanium alloy material
Mounting screw there is very high intensity, very low density, and excellent corrosion resistance and heat resistance.
The beneficial effects of the utility model are：
1st, annular ridge is set in the lateral wall of cup body, greatly facilitates the combination of metal outer cup and hipbone sclerotin, carry
The stability of high metal outer cup.
2nd, the inner chamber of cup body is arranged to taper type cavity, and the acetabular bone liner and metal outer cup for making acetabular bone system form taper
Contact, it is close chimeric, farthest reduce the activity relatively and its abrasion of outer wall of acetabular bone liner, reduce acetabular bone liner and break
The risk disengaged with particle is split, and is beneficial to the installation of acetabular bone liner and overhauls maintenance.
3rd, avoid the inwall in cup body that neck is set, ensure that the mechanical strength of metal outer cup side wall, extend acetabular bone
The service life of system.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The required accompanying drawing used is briefly described in description.It should be evident that drawings in the following description are of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the structural representation of the metal outer cup of prior art；
Fig. 2 is the upward view of metal outer cup provided by the utility model；
Fig. 3 is that Fig. 2 plants A-A to sectional view；
Fig. 4 is the side view of metal outer cup provided by the utility model；
Fig. 5 is the outline structural diagram of acetabular bone system provided by the utility model；
Fig. 6 is the sectional view of acetabular bone system provided by the utility model；
Fig. 7 is the structural representation of the mounting screw of acetabular bone system provided by the utility model.
Reference：
1- metal outer cups；2- necks；3- cup bodies；
4- annular ridges；5- taper type cavitys；6- screwed holes；
7- fixing holes；8- overhauls groove；9- acetabular bone liners；
10- mounting screws.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
A kind of metal outer cup 1 is present embodiments provided, wherein：Fig. 2 is looking up for metal outer cup provided by the utility model
Figure；Fig. 3 is that Fig. 2 plants A-A to sectional view；Fig. 4 is the side view of metal outer cup provided by the utility model.As shown in figs. 2 to 4,
Metal outer cup 1 includes cup body 3.Wherein, the outer of cup body 3 is provided with along cup shaped like the bowl-shape of back-off, the lateral wall of cup body 3
The annular ridge 4 of the circumferentially extending of body 3.And the inner chamber of cup body 3 is arranged to taper type cavity 5.In addition, the top of cup body 3
Portion is provided with screwed hole 6, and screwed hole 6 coordinates with apparatus, to install bion metal outer cup 1 in operation.
Fig. 1 is the structural representation of the metal outer cup of prior art, as shown in figure 1, in the conventional technology, artificial hip joint
Metal outer cup 1 be fixedly connected with acetabular bone liner 9 using the locking mechanism of neck 2.The locking mechanism of neck 2 requires metal outer cup 1
Inner chamber be necessarily provided with the neck 2 corresponding with acetabular bone liner 9, and neck 2 largely reduces the machine of metal outer cup 1
Tool intensity.Simultaneously there is provided neck 2 metal outer cup 1 generally with polythene material made of acetabular bone liner 9 be used cooperatively, metal
Inevitably there is gap between outer cup 1 and acetabular bone liner 9, so as to relative trickle activity occur, cause metal outer cup 1 with
The contact surface of acetabular bone liner 9 wears.
The metal outer cup 1 of the present embodiment, can preferably solve the above problems.First, set in the lateral wall of cup body 3
Annular ridge 4, the combination of metal outer cup 1 and hipbone sclerotin is greatly facilitated, improve the stability of metal outer cup 1；Secondly, cup sheet
The inner chamber of body 3 is arranged to taper type cavity 5, and the acetabular bone liner 9 and metal outer cup 1 for making acetabular bone system form conical contact, closely
It is chimeric, farthest reduce the activity relatively and its abrasion of outer wall of acetabular bone liner 9, reduce acetabular bone liner 9 rupture and
The risk that grain disengages, and be beneficial to the installation of acetabular bone liner 9 and overhaul maintenance；Again, avoid the inwall in cup body 3 that card is set
Groove 2, the mechanical strength of the side wall of metal outer cup 1 is ensure that, extend the service life of acetabular bone system.
In the alternative of the present embodiment, as shown in Figure 2,3, further, metal outer cup 1 also includes fixing hole 7, should
Fixing hole 7 is arranged in the side wall of glass body 3.In the present embodiment, fixing hole 7, which is useful in that, lays mounting screw 10.No
Same patient's constitution is different, is unfavorable for the fixed patient of installation for sclerotin, can be by the way of mounting screw 10 is implanted into
To carry out auxiliary fixation, the quantity of implantation mounting screw 10 selects as the case may be., can be with for the normal patient of sclerotin
Mounting screw 10 need not be implanted into.Preferably, fixing hole 7 is counter sink, and fixing hole 7 is consistent with the quantity of mounting screw 10,
It is traditionally arranged to be 3.
In the alternative of the present embodiment, as shown in Figure 2,3, further, the outer surface of metal outer cup 1 is provided with titanium
Sprayed coating.The effect of titanium sprayed coating is that induction sclerotin is grown into, the fixation of assistant reinforcement metal outer cup 1 and sclerotin.And above-mentioned ring
Shape fin 4 is the main fixed structure of metal outer cup 1 and sclerotin.
Preferably, the surface of titanium sprayed coating is micropore mat surface.In the present embodiment, micropore mat surface provides more porous
Hole, and the hole of mat surface is cranky, is well suited for the fixation of sclerotin.
In the alternative of the present embodiment, as shown in figs. 2 to 4, further, metal outer cup 1 also includes overhauling groove 8,
This overhauls the end face that groove 8 is arranged at the downside of glass body 3.Overhaul groove 8 be in order to overhaul afterwards during be easy in acetabular bone
Lining 9, which takes out, to be repaired or changes.
The utility model also provides a kind of acetabular bone system, and Fig. 5 is the contour structures of acetabular bone system provided by the utility model
Schematic diagram；Fig. 6 is the sectional view of acetabular bone system provided by the utility model；Fig. 7 is acetabular bone system provided by the utility model
The structural representation of mounting screw.As shown in Fig. 5~7, acetabular bone system includes above-mentioned metal outer cup 1, acetabular bone liner 9 and installation
Screw 10.Wherein, acetabular bone liner 9 is socketed in the madial wall of metal outer cup 1, and mounting screw 10 coordinates with fixing hole 7.
In the alternative of the present embodiment, as shown in fig. 6, further, metal outer cup 1 is matched somebody with somebody with acetabular bone liner 9 for cone
Close connection.Wherein, it is higher to bore the degree of cooperation of mating connection, and metal outer cup 1 does not produce relative displacement with acetabular bone liner 9,
Do not allow to be also easy to produce friction particles.
In the alternative of the present embodiment, as shown in fig. 6, further, the material of acetabular bone liner 9 is ceramic or super
High molecular weight polyethylene.Because the outside of acetabular bone liner 9 and the cone of metal outer cup 1 coordinate, inner side is connected with femoral ball head shoot face.And
And the material of metal outer cup 1 is metal, femur bulb material is ceramics or cobalt chrome molybdenum material.So Ceramics of acetabular bone liner 9
Or ultra-high molecular weight polyethylene material, the smooth friction of ceramics is small, and acetabular bone liner made of superhigh molecular weight polyethylene material
9, its thermal deformation performance, anti-wear performance are greatly improved, and acetabular bone liner 9 is fast as high polymer material production shaping
Speed, cost can be substantially reduced.
In the alternative of the present embodiment, as shown in Figure 7, it is preferable that the material of mounting screw 10 is titanium alloy.This is
Because the mounting screw 10 of titanium alloy material has very high intensity, very low density, and excellent corrosion resistance and heat-resisting
Property.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (9)
1. a kind of metal outer cup, it is characterised in that including cup body；The cup body is outer shaped like the bowl-shape of back-off, the cup sheet
The lateral wall of body is provided with the annular ridge of the circumferentially extending along the cup body；The inner chamber of the cup body is arranged to taper type
Cavity；Screwed hole is provided with the top of the cup body.
2. metal outer cup according to claim 1, it is characterised in that be also arranged on institute including fixing hole, the fixing hole
In the side wall for stating glass body.
3. metal outer cup according to claim 2, it is characterised in that the outer surface of the metal outer cup is provided with titanium spraying
Layer.
4. metal outer cup according to claim 3, it is characterised in that the surface of the titanium sprayed coating is micropore mat surface.
5. metal outer cup according to claim 2, it is characterised in that also include overhauling groove, the groove of overhauling is arranged at institute
State the end face on the downside of glass body.
6. a kind of acetabular bone system, it is characterised in that including the metal outer cup as described in any one of claim 2~5, and acetabular bone
Liner and mounting screw；The acetabular bone liner is socketed in the madial wall of the metal outer cup, the mounting screw and the fixation
Hole coordinates.
7. acetabular bone system according to claim 6, it is characterised in that the metal outer cup is matched somebody with somebody with the acetabular bone liner for cone
Close connection.
8. acetabular bone system according to claim 6, it is characterised in that the material of the acetabular bone liner is ceramics or superelevation
Molecular weight polyethylene.
9. acetabular bone system according to claim 6, it is characterised in that the material of the mounting screw is titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104768.2U CN206934218U (en) | 2017-01-23 | 2017-01-23 | A kind of metal outer cup and acetabular bone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104768.2U CN206934218U (en) | 2017-01-23 | 2017-01-23 | A kind of metal outer cup and acetabular bone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206934218U true CN206934218U (en) | 2018-01-30 |
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ID=61356215
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720104768.2U Active CN206934218U (en) | 2017-01-23 | 2017-01-23 | A kind of metal outer cup and acetabular bone system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110786968A (en) * | 2019-12-06 | 2020-02-14 | 经纬医疗器材制造（深圳）有限公司 | Acetabulum prosthesis capable of being tightly matched |
| CN111449808A (en) * | 2020-04-22 | 2020-07-28 | 深圳大洲医学科技有限公司 | Material increase manufactured porous tantalum metal acetabulum outer cup and preparation method thereof |
| CN111529135A (en) * | 2020-05-22 | 2020-08-14 | 北京科仪邦恩医疗器械科技有限公司 | Acetabular cup and acetabular prosthesis system |
| CN111603273A (en) * | 2020-05-18 | 2020-09-01 | 中南大学湘雅医院 | Double-acting artificial total hip joint |
| CN112535554A (en) * | 2020-12-19 | 2021-03-23 | 经纬医疗器材制造（深圳）有限公司 | Three-dimensional metal outer cup and manufacturing method thereof |
-
2017
- 2017-01-23 CN CN201720104768.2U patent/CN206934218U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110786968A (en) * | 2019-12-06 | 2020-02-14 | 经纬医疗器材制造（深圳）有限公司 | Acetabulum prosthesis capable of being tightly matched |
| CN111449808A (en) * | 2020-04-22 | 2020-07-28 | 深圳大洲医学科技有限公司 | Material increase manufactured porous tantalum metal acetabulum outer cup and preparation method thereof |
| CN111603273A (en) * | 2020-05-18 | 2020-09-01 | 中南大学湘雅医院 | Double-acting artificial total hip joint |
| CN111529135A (en) * | 2020-05-22 | 2020-08-14 | 北京科仪邦恩医疗器械科技有限公司 | Acetabular cup and acetabular prosthesis system |
| CN112535554A (en) * | 2020-12-19 | 2021-03-23 | 经纬医疗器材制造（深圳）有限公司 | Three-dimensional metal outer cup and manufacturing method thereof |
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