CN107496058A - Femoral prosthesis - Google Patents
Femoral prosthesis Download PDFInfo
- Publication number
- CN107496058A CN107496058A CN201710700496.7A CN201710700496A CN107496058A CN 107496058 A CN107496058 A CN 107496058A CN 201710700496 A CN201710700496 A CN 201710700496A CN 107496058 A CN107496058 A CN 107496058A
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- femoral
- hole
- femoral stem
- femoral prosthesis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3652—Connections of necks to shafts
Abstract
The invention provides a kind of femoral prosthesis, including femoral stem body and shank body near-end, femoral prosthesis also to include：Connecting portion, the first end of connecting portion are connected with femoral stem body, and the second end of connecting portion is connected with shank body near-end, so that femoral stem body connects with shank body proximally by connecting portion；Wherein, connecting portion is movably disposed on femoral stem body along predetermined direction, so that shank body near-end is with respect to the activity of femoral stem body.The femoral prosthesis of the present invention solves the problems, such as that liner can be produced the pulling force to distal femur when providing limitation function to femoral prosthesis in the prior art.
Description
Technical field
The present invention relates to artificial prosthesis field, in particular to a kind of femoral prosthesis.
Background technology
Replacement of Hip Joint (THA) is 20th century one of most successful surgical operation, and it can effectively eliminate joint
Pain, function of joint and correct deformity are rebuild, so as to improve patients ' life quality.The form of hip lesion is not quite similar, and has
The ligament function of a little patients is unsound, and muscular strength grade is relatively low, and this patient is generally required using the hip prosthesis of restricted type to enter
Line replacement could obtain function of joint steady in a long-term.
At present, the artificial hip joint of restricted type has：(1) restricted type liner prosthese；(2) hinge type prosthese；(3) tumorous type is false
Body etc..Wherein, hinge type prosthese and tumorous type prosthese cost are higher, and mobility is subject to certain restrictions, and need increase to cut
Bone amount, for sclerotin, preferable patient belongs to over-treatment.
The polyethylene liner of restricted type liner prosthese is connected with metal acetabulum cup by mechanical type, although can avoid closing
The situation of dislocation is saved, but while limitation function is provided to femoral stem, the pulling force to distal femur can be also produced to liner, this
Pulling force can be delivered on metal acetabulum, and the trend for pulling out acetabular fossa is produced to it, if things go on like this, can cause the pine of metal acetabulum
It is dynamic, reduce the service life of prosthese.
The content of the invention
It is a primary object of the present invention to provide a kind of femoral prosthesis, to solve to provide limit to femoral prosthesis in the prior art
The problem of liner being produced to the pulling force of distal femur during function processed.
To achieve these goals, the invention provides a kind of femoral prosthesis, including femoral stem body and shank body near-end, stock
Bone prosthese also includes：Connecting portion, the first end of connecting portion are connected with femoral stem body, and the second end and the shank body near-end of connecting portion connect
Connect, so that femoral stem body connects with shank body proximally by connecting portion；Wherein, connecting portion is movably disposed in along predetermined direction
On femoral stem body, so that shank body near-end is with respect to the activity of femoral stem body.
Further, shank body near-end can be close relative to femoral stem body or can be located apart from.
Further, the first connecting hole is provided with femoral stem body, the first end of connecting portion is movably located in
In one connecting hole.
Further, connecting portion includes：Lead, lead are movably located in the first connecting hole.
Further, femoral prosthesis also includes：Bull ring is hindered, resistance bull ring is set in the first connecting hole, and lead is movably
It is located in resistance bull ring.
Further, the second connecting hole is provided with shank body near-end, the second end of connecting portion is located in the second connecting hole.
Further, connecting portion also includes：Vertebra is locked, locking vertebra is connected with lead, and locking vertebra is located in the second connection
In hole.
Further, lead is integrally formed with locking vertebra.
Further, shank body near-end has the locking hole passed through for the first fastener, and locking hole connects with the second connecting hole,
So that the first fastener connects after passing through locking hole with connecting portion locking.
Further, femoral prosthesis also includes：Cushion block, cushion block are arranged between femoral stem body and shank body near-end, wherein,
One end face of cushion block is bonded with femoral stem body, and another end face of cushion block is bonded with shank body near-end.
Further, cushion block has the first fastener hole passed through for the second fastener, and femoral stem body has tight for second
The second fastener hole that firmware passes through, the first fastener hole and the second fastener hole are oppositely arranged, so that the second fastener is located in first
In fastener hole and the second fastener hole.
Further, the first end face of cushion block and the second end face of cushion block are in predetermined angular.
The femoral prosthesis of the present invention avoids the transmission to power between femoral stem body and shank body near-end by connecting portion, its
In, the first end of connecting portion is connected with femoral stem body, and the second end of connecting portion is connected with shank body near-end, by by connecting portion edge
Predetermined direction is movably disposed on femoral stem body, so as to so that shank body near-end is movable with respect to femoral stem body.
Femoral prosthesis of the prior art, because femoral stem body and shank body near-end are relatively fixed setting, so as to occur
Femoral stem body pulls shank body near-end and brings it about loose phenomenon so as to pull the metal acetabulum being connected with shank body near-end, influences to suffer from
The normal recovery of person.Compared with prior art, femoral prosthesis of the invention makes shank body near-end equivalent to femoral stem by connecting portion
Body is movably set, and so as to eliminate the transmission of power between femoral stem body and shank body near-end, is solved in the prior art
The problem of liner being produced to the pulling force of distal femur when providing limitation function to femoral prosthesis.
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 decomposition texture schematic diagram of the embodiment of the femoral prosthesis according to the present invention；
Fig. 2 shows the mounting structure schematic diagram of the embodiment of the femoral prosthesis according to the present invention；
Fig. 3 shows the structural representation of the femoral stem body of the femoral prosthesis according to the present invention；
Fig. 4 shows the partial structural diagram of the femoral stem body of the femoral prosthesis according to the present invention；
Fig. 5 shows the structural representation of the shank body near-end of the femoral prosthesis according to the present invention；
Fig. 6 shows the structural representation of the connecting portion of the femoral prosthesis according to the present invention；
Fig. 7 shows the structural representation of one embodiment of the cushion block of the femoral prosthesis according to the present invention；
Fig. 8 shows the structural representation of second embodiment of the cushion block of the femoral prosthesis according to the present invention；And
Fig. 9 shows the structural representation of the 3rd embodiment of the cushion block of the femoral prosthesis according to the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, femoral stem body；11st, the first connecting hole；12nd, the second fastener hole；20th, shank body near-end；21st, the second connecting hole；
22nd, locking hole；30th, connecting portion；31st, lead；32nd, vertebra is locked；40th, bull ring is hindered；50th, cushion block；51st, the first fastener hole；52nd, insert
Connect hole.
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.
The invention provides a kind of femoral prosthesis, refer to Fig. 1 to Fig. 9, and femoral prosthesis includes femoral stem body 10 and handle
Body near-end 20, femoral prosthesis also includes：Connecting portion 30, the first end of connecting portion 30 are connected with femoral stem body 10, connecting portion 30
The second end be connected with shank body near-end 20 so that femoral stem body 10 and shank body near-end 20 are connected by connecting portion 30；Wherein, even
Socket part 30 is movably disposed on femoral stem body 10 along predetermined direction, so that shank body near-end 20 is lived with respect to femoral stem body 10
It is dynamic.
The femoral prosthesis of the present invention avoids the biography of power between femoral stem body 10 and shank body near-end 20 by connecting portion 30
Pass, wherein, the first end of connecting portion 30 is connected with femoral stem body 10, and the second end of connecting portion 30 is connected with shank body near-end 20,
By the way that connecting portion 30 is movably disposed on femoral stem body 10 along predetermined direction, so as to so that shank body near-end 20 is relative
The activity of femoral stem body 10.
Femoral prosthesis of the prior art, because femoral stem body 10 and shank body near-end 20 are relatively fixed setting, so as to meeting
There is the dragging shank body of femoral stem body 10 near-end 20 and bring it about loosening so as to pull the metal acetabulum being connected with shank body near-end 20
Phenomenon, influence the normal recovery of patient.Compared with prior art, femoral prosthesis of the invention makes shank body near-end by connecting portion 30
20 are movably set equivalent to femoral stem body 10, so as to eliminate the biography of power between femoral stem body 10 and shank body near-end 20
Pass, solve in the prior art to asking for the pulling force to distal femur can be produced during femoral prosthesis offer limitation function to liner
Topic.
For shank body near-end 20 with respect to 10 specific manner of femoral stem body, shank body near-end 20 is relative to femoral stem sheet
Body 10 can be close or can be located apart from.By can be close relative to femoral stem body 10 by shank body near-end 20 or can remotely set
Put, so as to eliminate the transmission of power between femoral stem body 10 and shank body near-end 20.
It is connected in order to which femoral stem body 10 is realized with connecting portion 30, as shown in Figure 3 and Figure 4, femoral stem body 10
On be provided with the first connecting hole 11, the first end of connecting portion 30 is movably located in the first connecting hole 11.
In the present embodiment, by being provided with the first connecting hole 11 on femoral stem body 10, wherein, the of connecting portion 30
One end, which is worn, to be arranged in the first connecting hole 11, in order to realize that shank body near-end 20 can be close or can be remote relative to femoral stem body 10
Ground is set, and so as to which connecting portion 30 is movably located in the first connecting hole 11, thereby guarantees that shank body near-end 20 relative to stock
Bone handle body 10 can be close or can be remotely movable.
Illustrated for the concrete structure of connecting portion 30, as shown in fig. 6, connecting portion 30 includes：Lead 31, lead
31 are movably located in the first connecting hole 11.By being provided with lead 31 on connecting portion 30, wherein, lead 31 with
First connecting hole 11 is adapted, in order to ensure that lead 31 is movably located in the first connecting hole 11, the first connecting hole 11
Aperture be greater than the external diameter of lead 31.
Movably it is located in the first connecting hole 11 in view of lead 31, so as to which different degrees of abrasion can be produced,
In order to ensure the long-term normal use of connecting portion 30.As shown in figure 4, femoral prosthesis also includes：Bull ring 40 is hindered, resistance bull ring 40 is set
In first connecting hole 11, lead 31 is movably located in resistance bull ring 40.
In the present embodiment, by being provided with resistance bull ring 40 on femoral prosthesis, wherein, resistance bull ring 40 sets the first connection
In hole 11, lead 31 is located in resistance bull ring 40.It is not directly to be contacted with the first connecting hole 11 in view of lead 31, so as to
Amount of friction therebetween can be eliminated.
In the present embodiment, for the amount of friction for reducing lead 31 with hindering bull ring 40.Preferably, it is poly- second to hinder bull ring 40
Alkene ring.
In order to realize the connection of shank body near-end 20 and connecting portion 30, as shown in figure 5, being provided with shank body near-end 20
Two connecting holes 21, the second end of connecting portion 30 are located in the second connecting hole 21.
In the present embodiment, by being provided with the second connecting hole 21 on shank body near-end 20, wherein, the second of connecting portion 30
End is located in the second connecting hole 21, it is achieved thereby that the connection of connecting portion 30 and shank body near-end 20.
In order to make the second end of connecting portion 30 be located in the second connecting hole 21.As shown in fig. 6, connecting portion 30 also wraps
Include：Vertebra 32 is locked, locking vertebra 32 is connected with lead 31, and locking vertebra 32 is located in the second connecting hole 21.
In the present embodiment, by being provided with locking vertebra 32 on connecting portion 30, wherein, locking vertebra 32 connects with lead 31
Connect, locking vertebra 32 is located in the second connecting hole 21, it is achieved thereby that the connection of connecting portion 30 and shank body near-end 20.
In the present embodiment, connecting portion 30 is made up of lead 31 and locking vertebra 32, wherein, lead 31 is movably worn
It is located in resistance bull ring 40, locking vertebra 32 is located in the second connecting hole 21, it is achieved thereby that shank body near-end 20 is relative to femoral stem
The relative motion of body 10.
In order to meet process requirements, lead 31 is integrally formed with locking vertebra 32.By being directed to post 31 and locking vertebra 32
Being integrally formed can either ensure that the high efficiency of processing also can enough ensure the structural stability of connecting portion 30.
In order to limit the position relationship of shank body near-end 20 and connecting portion 30, supplied as shown in figure 5, shank body near-end 20 has
The locking hole 22 that first fastener passes through, locking hole 22 connect with the second connecting hole 21, so that the first fastener passes through locking hole
Lock and connect with connecting portion 30 after 22.
By being provided with locking hole 22 on shank body near-end 20, wherein, locking hole 22 is arranged at the side wall of shank body near-end 20
On, locking hole 22 connects with the second connecting hole 21.During specific locking, the first fastener is passed through after locking hole 22 with being connected
The locking connection of portion 30, it is achieved thereby that to the position-limiting action of connecting portion 30, ensure that connecting portion 30 is fixedly installed on the second connecting hole
In 21.
The excessive stress of generation, such as Fig. 1 are directly contacted in order to eliminate shank body near-end 20 with femoral stem body 10
Shown, femoral prosthesis also includes：Cushion block 50, cushion block 50 are arranged between femoral stem body 10 and shank body near-end 20.Wherein, cushion block
50 end face is bonded with femoral stem body 10, and another end face of cushion block 50 is bonded with shank body near-end 20.
By being provided with cushion block 50 on femoral prosthesis, wherein, cushion block 50 is arranged on femoral stem body 10 and shank body near-end
Between 20.In specific installation process, an end face of cushion block 50 is bonded with femoral stem body 10, another end face of cushion block 50
It is bonded with shank body near-end 20, is contacted so as to avoid shank body near-end 20 with the direct of femoral stem body 10.Reduce to a certain degree
Contact stress between shank body near-end 20 and femoral stem body 10.
In order to which cushion block 50 is stably placed between shank body near-end 20 and femoral stem body 10, without influenceing
The relative motion of shank body near-end 20 and femoral stem body 10.Cushion block 50 has the first fastener hole 51 passed through for the second fastener,
Femoral stem body 10 has the second fastener hole 12 passed through for the second fastener, and the first fastener hole 51 and the second fastener hole 12 are relative
Set, so that the second fastener is located in the first fastener hole 51 and the second fastener hole 12.
In the present embodiment, by being provided with the first fastener hole 51 passed through for the second fastener, femur on cushion block 50
Handle body 10 has the second fastener hole 12 passed through for the second fastener, and the first fastener hole 51 and the second fastener hole 12 are set relatively
Put.By the way that the second fastener is located in the first fastener hole 51 and the second fastener hole 12, so that cushion block 50 and femoral stem
Body 10 is stably connected with.
Require different for the relative position between shank body near-end 20 and femoral stem body 10 in view of sufferer, in order to
Different sufferer demands can be matched, the first end face of cushion block 50 and the second end face of cushion block 50 are in predetermined angular.
It is arranged in view of cushion block 50 between femoral stem body 10 and shank body near-end 20, in order to pass through connecting portion 30
Cushion block 50, spliced eye 52 is provided with cushion block 50.Connecting portion 30 passes through spliced eye 52, near to connect femoral stem body 10 and shank body
End 20.
Femoral stem body 10 has first end face, and shank body near-end 20 has second end face, first end face and second end face phase
To setting；Wherein, there is the first default angle, the adjustable angle of the first default angle saves land between first end face and second end face
Set.
In order to adapt to the first default angle between first end face and second end face, the axis of lead 31 and locking
The axis of vertebra 32 is in the second default angle.Vertebra 32 is locked relative to the incline direction and shank body near-end 20 of lead 31 relative to stock
The incline direction of bone handle body 10 is consistent, so that lead 31 is located in the first connecting hole 11, locking vertebra 32 is located in the
In two connecting holes 21；Wherein, the first default angle is equal to the second default angle.
In the present embodiment, the axis of lead 31 locks the phase of vertebra 32 with the axis of locking vertebra 32 in the second default angle
It is consistent relative to the incline direction of femoral stem body 10 with shank body near-end 20 for the incline direction of lead 31, so as to
Lead 31 is set to be located in the first connecting hole 11.Locking vertebra 32 is located in the second connecting hole 21, in order to preferably real
Being stably connected between existing shank body near-end 20, connecting portion 30 and femoral stem body 10, it is preferable that the first default angle is equal to the
Two default angles.
In the present embodiment, the second default angle is a, and a is 6 degree.
For the first embodiment of cushion block 50, as shown in fig. 7, the upper surface of cushion block 50 be arranged in parallel with lower surface, this
When, the end face that shank body near-end 20 and femoral stem body 10 are oppositely arranged is in parastate, i.e. shank body near-end 20 and femoral stem sheet
The connection axis of body 10 overlaps.
For second of embodiment of cushion block 50, as shown in Figure 8 and Figure 9, the upper surface of cushion block 50 tilts with lower surface to be set
Put, and it can be any direction to cut oblique direction, just allow for patient herein for shank body near-end 20 and femoral stem body 10
Relative position requirement.There is the relative tilt of connecting shaft in shank body near-end 20 and femoral stem body 10, in order to meet needs, if
The cushion block 50 put between shank body near-end 20 and femoral stem body 10 also makes accommodation, to meet installation requirement.
Present invention also offers a kind of manufacture method of femoral prosthesis, manufacture method is used to manufacture above-mentioned femoral prosthesis,
Femoral prosthesis also includes cushion block 50, and cushion block 50 is arranged between femoral stem body 10 and shank body near-end 20, so that shank body near-end 20
It is arranged on by cushion block 50 on femoral stem body 10, manufacture method includes：Cushion block matches step, and cushion block 50 is arranged in groups, one group
Angle between the first binding face and the second binding face of each cushion block 50 in cushion block 50 differs, according to the physiology of patient
Size selection cushion block 50, wherein, the angle between the first binding face and the second binding face of cushion block 50 adapt to first end face and
The first default angle between second end face.
Preferably, femoral prosthesis also includes connecting portion 30, and the first end of connecting portion 30 is connected with femoral stem body 10, connection
Second end in portion 30 is connected with shank body near-end 20, so that femoral stem body 10 and shank body near-end 20 are connected by connecting portion 30, even
The axis of the first end of socket part 30 and the axis at the second end of connecting portion 30 include in the second default angle, manufacture method：Connection
Portion matches step, and connecting portion 30 is arranged in groups, the second default angle of each connecting portion 30 in one group of connecting portion 30 not phase
Together, the first default angle is determined according to the physiology size of patient, selection has and first default the second default folder of angle identical
The connecting portion 30 at angle.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
The femoral prosthesis of the present invention avoids the biography of power between femoral stem body 10 and shank body near-end 20 by connecting portion 30
Pass, wherein, the first end of connecting portion 30 is connected with femoral stem body 10, and the second end of connecting portion 30 is connected with shank body near-end 20,
By the way that connecting portion 30 is movably disposed on femoral stem body 10 along predetermined direction, so as to so that shank body near-end 20 is relative
The activity of femoral stem body 10.
Femoral prosthesis of the prior art, because femoral stem body 10 and shank body near-end 20 are relatively fixed setting, so as to meeting
There is the dragging shank body of femoral stem body 10 near-end 20 and bring it about loosening so as to pull the metal acetabulum being connected with shank body near-end 20
Phenomenon, influence the normal recovery of patient.Compared with prior art, femoral prosthesis of the invention makes shank body near-end by connecting portion 30
20 are movably set equivalent to femoral stem body 10, so as to eliminate the biography of power between femoral stem body 10 and shank body near-end 20
Pass, solve in the prior art to asking for the pulling force to distal femur can be produced during femoral prosthesis offer limitation function to liner
Topic.
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 (12)
1. a kind of femoral prosthesis, including femoral stem body (10) and shank body near-end (20), it is characterised in that the femoral prosthesis is also
Including：
Connecting portion (30), the first end of the connecting portion (30) are connected with the femoral stem body (10), the connecting portion (30)
The second end be connected with the shank body near-end (20) so that the femoral stem body (10) and the shank body near-end (20) pass through institute
State connecting portion (30) connection；
Wherein, the connecting portion (30) is movably disposed on the femoral stem body (10) along predetermined direction, so that described
Relatively described femoral stem body (10) activity of shank body near-end (20).
2. femoral prosthesis according to claim 1, it is characterised in that the shank body near-end (20) is relative to the femoral stem
Body (10) can be close or can be located apart from.
3. femoral prosthesis according to claim 1, it is characterised in that be provided with the first company on the femoral stem body (10)
Hole (11) is connect, the first end of the connecting portion (30) is movably located in first connecting hole (11).
4. femoral prosthesis according to claim 3, it is characterised in that the connecting portion (30) includes：
Lead (31), the lead (31) are movably located in first connecting hole (11).
5. femoral prosthesis according to claim 4, it is characterised in that the femoral prosthesis also includes：
Bull ring (40) is hindered, the resistance bull ring (40) is set in first connecting hole (11), and the lead (31) is movably
It is located in the resistance bull ring (40).
6. femoral prosthesis according to claim 4, it is characterised in that be provided with the second connection on the shank body near-end (20)
Hole (21), the second end of the connecting portion (30) are located in second connecting hole (21).
7. femoral prosthesis according to claim 6, it is characterised in that the connecting portion (30) also includes：
Vertebra (32) is locked, the locking vertebra (32) is connected with the lead (31), and the vertebra (32) that locks is located in described the
In two connecting holes (21).
8. femoral prosthesis according to claim 7, it is characterised in that the lead (31) and the locking vertebra (32) one
It is body formed.
9. femoral prosthesis according to claim 6, it is characterised in that the shank body near-end (20), which has, supplies the first fastener
The locking hole (22) passed through, the locking hole (22) connects with second connecting hole (21), so that first fastener is worn
Cross the locking hole (22) and lock connection with the connecting portion (30) afterwards.
10. femoral prosthesis according to any one of claim 1 to 9, it is characterised in that the femoral prosthesis also includes：
Cushion block (50), the cushion block (50) are arranged between the femoral stem body (10) and the shank body near-end (20), wherein,
One end face of the cushion block (50) is bonded with the femoral stem body (10), another end face of the cushion block (50) with it is described
Shank body near-end (20) is bonded.
11. femoral prosthesis according to claim 10, it is characterised in that the cushion block (50) has wears for the second fastener
The first fastener hole (51) crossed, the femoral stem body (10) have the second fastener hole passed through for second fastener
(12), first fastener hole (51) and second fastener hole (12) are oppositely arranged, so that second fastener is located in
In first fastener hole (51) and second fastener hole (12).
12. femoral prosthesis according to claim 10, it is characterised in that the first end face of the cushion block (50) and the pad
The second end face of block (50) is in predetermined angular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700496.7A CN107496058B (en) | 2017-08-15 | 2017-08-15 | Femoral prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700496.7A CN107496058B (en) | 2017-08-15 | 2017-08-15 | Femoral prosthesis |
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| Publication Number | Publication Date |
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| CN107496058A true CN107496058A (en) | 2017-12-22 |
| CN107496058B CN107496058B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710700496.7A Active CN107496058B (en) | 2017-08-15 | 2017-08-15 | Femoral prosthesis |
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| Country | Link |
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| CN (1) | CN107496058B (en) |
Citations (5)
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|---|---|---|---|---|
| CN1803107A (en) * | 2005-01-11 | 2006-07-19 | 郑诚功 | Structure-improved artificial thighbone handle |
| CN101361685A (en) * | 2007-08-06 | 2009-02-11 | 付中国 | Sliding-chute push-in-type multi-dimensional variable shoulder joint humerus prosthesis |
| US20110125285A1 (en) * | 2003-09-18 | 2011-05-26 | Mariasal Investment N.V. | Set of mobile necks for inserting into the stem of a hip prosthesis |
| CN202446300U (en) * | 2011-12-30 | 2012-09-26 | 北京爱康宜诚医疗器材股份有限公司 | Combined type femoral stem prosthesis |
| CN105943201A (en) * | 2016-04-19 | 2016-09-21 | 张忠河 | Modular neck for orthopedic equipment |
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2017
- 2017-08-15 CN CN201710700496.7A patent/CN107496058B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110125285A1 (en) * | 2003-09-18 | 2011-05-26 | Mariasal Investment N.V. | Set of mobile necks for inserting into the stem of a hip prosthesis |
| CN1803107A (en) * | 2005-01-11 | 2006-07-19 | 郑诚功 | Structure-improved artificial thighbone handle |
| CN101361685A (en) * | 2007-08-06 | 2009-02-11 | 付中国 | Sliding-chute push-in-type multi-dimensional variable shoulder joint humerus prosthesis |
| CN202446300U (en) * | 2011-12-30 | 2012-09-26 | 北京爱康宜诚医疗器材股份有限公司 | Combined type femoral stem prosthesis |
| CN105943201A (en) * | 2016-04-19 | 2016-09-21 | 张忠河 | Modular neck for orthopedic equipment |
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| Publication number | Publication date |
|---|---|
| CN107496058B (en) | 2023-07-28 |
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