CN107280819A - Tibial prosthesis - Google Patents
Tibial prosthesis Download PDFInfo
- Publication number
- CN107280819A CN107280819A CN201710524545.6A CN201710524545A CN107280819A CN 107280819 A CN107280819 A CN 107280819A CN 201710524545 A CN201710524545 A CN 201710524545A CN 107280819 A CN107280819 A CN 107280819A
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- CN
- China
- Prior art keywords
- transition member
- tibial
- prolonging handle
- mounting hole
- installation portion
- 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.)
- Pending
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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
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
-
- 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
- A61F2/28—Bones
- A61F2002/2892—Tibia
-
- 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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
-
- 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
- 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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30494—Cooperating protrusions and recesses, e.g. radial serrations, located on abutting end surfaces of a longitudinal connection
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides a kind of tibial prosthesis, including tibial plateau and prolonging handle, tibial prosthesis also includes：Transition member, transition member is arranged between tibial plateau and prolonging handle；Wherein, it is arranged on tibial plateau to transition member position-adjustable, so that prolonging handle is adjustably mounted on tibial plateau by transition member along the endface position of tibial plateau.The tibial prosthesis of the present invention, which solves tibial prosthesis of the prior art, can not realize the adjustable problem of eccentric throw.
Description
Technical field
The present invention relates to artificial prosthesis field, in particular to a kind of tibial prosthesis.
Background technology
Now, total knee replacement operation turns into the important means for mitigating the diseases such as sufferer pain, correction deformity, and total knee is closed
Saving revision procedure also turns into the operation of joint surgery doctor most perception of accomplishment.In overhaul technology, jointing repair prosthesis typically uses and assembles vacation
Body, to realize good fixation.
At present, overhaul shin bone and assemble prosthetic designs, be tibial plateau connection prolonging handle, can be used when Cranial defect is serious and fill out
Fill block.During universal tibial prosthesis is assembled, prolonging handle is provided with two kinds of straight type handle and eccentric type handle, it is possible to resolve part is eccentric to be needed,
But it can not realize that eccentric throw is adjustable.
For Cranial defect is serious and the serious sufferer of anatomical abnormalities, the type jointing repair prosthesis of assembling occurs the type filling block of assembling too
Small, because the eccentric throw selection of existing prosthese prolonging handle is limited, it is difficult progress that can make operation.At present for extreme case class above
Type, using measure prostheses, but measure prostheses spend higher, and need the matching design of medical practitioner and engineer to go out to meet bar
The prosthese of part, the consuming time is long, and design and processing have certain error.
In addition, the existing prosthese that assembles is combined for the left leg prosthese different with right leg needs, versatility is poor.
The content of the invention
, can not be real to solve tibial prosthesis of the prior art it is a primary object of the present invention to provide a kind of tibial prosthesis
The adjustable problem of existing eccentric throw.
To achieve these goals, the invention provides a kind of tibial prosthesis, including tibial plateau and prolonging handle, shin bone vacation
Body also includes：Transition member, transition member is arranged between tibial plateau and prolonging handle；Wherein, transition member position-adjustable
Ground is arranged on tibial plateau, so that prolonging handle is adjustably mounted at shin by transition member along the endface position of tibial plateau
On bone platform.
Further, transition member by rotation axis of the straight line perpendicular to tibial plateau rotatably arranged with；Wherein, mistake
The diameter parallel of the rotation axis and prolonging handle that cross part is set.
Further, there is the first mounting hole, tibial plateau has the be adapted with the first mounting hole in transition member
One installation portion, the first installation portion is plugged in the first mounting hole；Wherein, the rotation axis of transition member is in the first installation portion
Heart line.
Further, the rotation axis of transition member is overlapped with the center line of tibial plateau.
Further, the first mounting hole is bellmouth, and the first installation portion is the tapered stud being adapted with bellmouth.
Further, tibial plateau has vertical columns, vertical columns and the first installation portion towards the side of transition member
Between have resigning gap, to avoid transition member.
Further, vertical columns are multiple, and multiple vertical columns are provided at circumferentially spaced along tibial plateau.
Further, there is the second mounting hole, prolonging handle has second be adapted with the second mounting hole in transition member
Installation portion, the second installation portion is detachably inserted in the second mounting hole.
Further, the second mounting hole is multiple, and multiple second mounting holes are arranged at intervals, and the second installation portion is selectively inserted
It is located in corresponding second mounting hole.
Further, direction of multiple second mounting holes along the rotation axis away from transition member is set gradually, so that many
The distance between the center line of individual second mounting hole and the rotation axis of transition member gradually increase.
Further, the second mounting hole is bellmouth, and the second installation portion is the tapered stud being adapted with bellmouth.
Further, the prolonging handle body that prolonging handle has connecting portion and is connected with connecting portion, the second installation portion is arranged on
The one end of connecting portion away from prolonging handle body.
Further, there is anti-spin slot, bearing of trend of the anti-spin slot along prolonging handle body prolongs on the wall of prolonging handle body
Stretch.
Further, anti-spin slot is multiple, multiple anti-spin slot being provided at circumferentially spaced along prolonging handle body.
The tibial prosthesis of the present invention by being provided with the transition member of position-adjustable between tibial plateau and prolonging handle,
Demand of the different sufferers for the tibial prosthesis of different eccentric throws can be realized, wherein, set to transition member position-adjustable
On tibial plateau, prolonging handle is arranged in transition member.In the specific implantation of tibial prosthesis, according to sufferer for eccentric throw
Requirement adjust transition member position, prolonging handle relative to tibial plateau position change, to meet the demand of sufferer.
Compared to existing tibial prosthesis, because the eccentric throw selection of existing prosthese prolonging handle is limited, the operation can be made to be difficult
Carry out, and the present invention tibial prosthesis by the way that transition member position-adjustable is arranged on tibial plateau so that prolonging handle
Be adjustably mounted at by transition member along the endface position of tibial plateau on tibial plateau, it is possible to achieve different sufferers for
The demand of the tibial prosthesis of different eccentric throws, so that solving tibial prosthesis of the prior art can not realize that eccentric throw can adjust
The problem of.
Brief description of the drawings
The Figure of description for constituting 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 constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the embodiment of the tibial prosthesis according to the present invention；
Fig. 2 shows the decomposition texture schematic diagram of the tibial prosthesis according to the present invention；
Fig. 3 shows the tibial plateau and the assembly structure diagram of transition member of the tibial prosthesis according to the present invention；
Fig. 4 shows the structural representation of the transition member of the tibial prosthesis according to the present invention；
Fig. 5 shows the structural representation of the tibial plateau of the tibial prosthesis according to the present invention；And
Fig. 6 shows the front view of the tibial plateau of the tibial prosthesis according to the present invention.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, tibial plateau；11st, the first installation portion；12nd, vertical columns；20th, prolonging handle；21st, the second installation portion；22nd, extend
Handle body；221st, anti-spin slot；23rd, connecting portion；30th, transition member；31st, the first mounting hole；32nd, the second mounting 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 tibial prosthesis, including tibial plateau 10 and prolonging handle 20, Fig. 1 to Fig. 6, shin bone refer to
Prosthese also includes：Transition member 30, transition member 30 is arranged between tibial plateau 10 and prolonging handle 20；Wherein, transition member
It is arranged on tibial plateau 10 to 30 position-adjustables, so that end face of the prolonging handle 20 by transition member 30 along tibial plateau 10
It is arranged on tibial plateau 10 to position-adjustable.
The tibial prosthesis of the present invention between tibial plateau 10 and prolonging handle 20 by being provided with the transition of position-adjustable
Part 30, it is possible to achieve different sufferers for the tibial prosthesis of different eccentric throws demand, wherein, the position of transition member 30 is adjustable
Save land and be arranged on tibial plateau 10, prolonging handle 20 is arranged in transition member 30.In the specific implantation of tibial prosthesis, according to
Sufferer adjusts the position of transition member 30 for the requirement of eccentric throw, and prolonging handle 20 changes relative to the position of tibial plateau 10,
To meet the demand of sufferer.
Compared to existing tibial prosthesis, because the eccentric throw selection of existing prosthese prolonging handle is limited, the operation can be made to be difficult
Carry out, and the present invention tibial prosthesis by the way that the position-adjustable of transition member 30 is arranged on tibial plateau 10, so as to prolong
Endface position of the long handle 20 by transition member 30 along tibial plateau 10 is adjustably mounted on tibial plateau 10, it is possible to achieve
Different sufferers for the tibial prosthesis of different eccentric throws demand so that solving tibial prosthesis of the prior art can not realize
The adjustable problem of eccentric throw.
In order to be arranged on tibial plateau 10 with making the position-adjustable of transition member 30, transition member 30 with perpendicular to
The straight line of tibial plateau 10 be rotation axis rotatably arranged with；Wherein, the rotation axis of transition member 30 and prolonging handle 20
Diameter parallel is set.
In the present embodiment, transition member 30 is rotationally set using the straight line perpendicular to tibial plateau 10 as rotation axis
Put, so that transition member 30 is rotated around rotation axis, change the relative position of prolonging handle 20 and tibial plateau 10 with this, realize
The eccentric requirement of any direction, wherein, the rotation axis of transition member 30 is set with the diameter parallel of prolonging handle 20.In this reality
Apply in example, the axis of the rotation axis and prolonging handle 20 of transition member 30 is not arranged on the same straight line.
In order to make transition member 30 be rotatably arranged in tibial plateau 10, as shown in figure 1, having in transition member 30
There is the first mounting hole 31, tibial plateau 10 has the first installation portion 11 being adapted with the first mounting hole 31, the first installation portion 11
It is plugged in the first mounting hole 31；Wherein, the rotation axis of transition member 30 is the center line of the first installation portion 11.
In the present embodiment, by being provided with the first mounting hole 31 in transition member 30, wherein, tibial plateau 10 has
The first installation portion 11 being adapted with the first mounting hole 31, by the way that the first installation portion 11 is plugged in the first mounting hole 31, from
And transition member 30 and tibial plateau 10 can be made to be connected by the first installation portion 11 and the first mounting hole 31.
In the present embodiment, the rotation axis of transition member 30 is the center line of the first installation portion 11, the first installation portion 11
For conical bore, the center line of the first installation portion 11 is the straightway of the central point by conical bore bottom surface, i.e. right-angled trapezium is surrounded
Center solder, which rotates a circle, obtains the first installation portion 11.
Preferably, the rotation axis of transition member 30 is overlapped with the center line of tibial plateau 10.
In the present embodiment, the rotation axis of transition member 30 is overlapped with the center line of tibial plateau 10.In the present embodiment
In, the both sides of tibial plateau 10 are symmetrical, the point midway for the line of symmetry that the center line of tibial plateau 10 passes through tibial plateau 10, and shin
The central axis of bone platform 10 is in tibial plateau 10.
In order to make transition member 30 be rotatably arranged in tibial plateau 10, the first mounting hole 31 is bellmouth, the
One installation portion 11 is the tapered stud being adapted with bellmouth.By the way that the first mounting hole 31 is set into bellmouth, wherein, first
Installation portion 11 is the tapered stud that is adapted with bellmouth, in specific assembling process, by the way that the first installation portion 11 is inserted into the
In one mounting hole 31, the connection of transition member 30 and tibial plateau 10 is realized, it is contemplated that the first mounting hole 31 is bellmouth, from
And can make the first installation portion 11 in the first mounting hole 31 rotatably arranged with.
In order to play fixation to tibial plateau 10, as shown in Figure 5 and Figure 6, tibial plateau 10 is towards transition part
The side of part 30, which has, has resigning gap between vertical columns 12, the installation portion 11 of vertical columns 12 and first, to avoid transition
Part 30.By being provided with vertical columns 12 towards the side of transition member 30 in tibial plateau 10, wherein, the He of vertical columns 12
There is resigning gap, so as to ensure that transition member 30 is arranged on tibial plateau 10 between first installation portion 11.
In the present embodiment, vertical columns 12 both can coordinate filling block to use in Cranial defect, also can be in no Cranial defect
Realize supporting role in side so that there is good stability after tibial plateau implantation, playing prevents platform from rotating, good with bon e formation
Good connection function.
Preferably, vertical columns 12 are multiple, multiple being provided at circumferentially spaced along tibial plateau 10 of vertical columns 12.At this
In embodiment, vertical columns are tapered stud.
In order to which prolonging handle 20 is arranged in transition member 30, as shown in figure 1, having the second peace in transition member 30
Hole 32 is filled, prolonging handle 20 has the second installation portion 21 being adapted with the second mounting hole 32, and the second installation portion 21 is removably inserted
It is located in the second mounting hole 32.By being provided with the second mounting hole 32 in transition member 30, wherein, prolonging handle 20 has and the
The second installation portion 21 that two mounting holes 32 are adapted, by the way that the second installation portion 21 is plugged in the second mounting hole 32, is realized
Prolonging handle 20 and the connection of transition member 30.
In order to meet the demand of the different eccentric throws of tibial prosthesis, the second mounting hole 32 is multiple, and multiple second install
Hole 32 is arranged at intervals, and the second installation portion 21 is selectively plugged in corresponding second mounting hole 32.By the way that second is pacified
Dress hole 32 be set to it is multiple, wherein, multiple second mounting holes 32 are arranged at intervals, and the second installation portion 21 is selectively plugged in accordingly
Second mounting hole 32 in, according to different eccentric throw demands, the second installation portion 21 can be plugged in corresponding second
In mounting hole 32.
Preferably, direction of multiple second mounting holes 32 along the rotation axis away from transition member 30 is set gradually, so that
The distance between the center line of multiple second mounting holes 32 and rotation axis of transition member 30 gradually increase.
In order to realize the connection of prolonging handle 20 and transition member 30, the second mounting hole 32 is bellmouth, and second installs
Portion 21 is the tapered stud being adapted with bellmouth.By the way that the second mounting hole 32 is set into bellmouth, wherein, the second installation portion
21 tapered stud to be adapted with bellmouth, by the way that tapered stud is plugged in bellmouth, realizes prolonging handle 20 and mistake
Cross the connection of part 30.
For the concrete structure of prolonging handle 20, as depicted in figs. 1 and 2, prolonging handle 20 has connecting portion 23 and and connecting portion
The prolonging handle body 22 of 23 connections, the second installation portion 21 is arranged on the one end of connecting portion 23 away from prolonging handle body 22.
In the present embodiment, prolonging handle 20 is made up of connecting portion 23 and prolonging handle body 22, wherein, with the He of connecting portion 23
Prolonging handle body 22 is connected, and the second installation portion 21 is arranged on the one end of connecting portion 23 away from prolonging handle body 22, by by second
Installation portion 21 is selectively plugged in corresponding second mounting hole 32, so as to make prolonging handle 20 along tibial plateau 10
Endface position be adjustably mounted on tibial plateau 10, when specific tibial prosthesis is implanted into, prolonging handle body 22 implantation marrow
Intracavitary.
In order to prevent prolonging handle body 22 from being rotated in pulp cavity, as shown in figure 1, having on the wall of prolonging handle body 22
There are anti-spin slot 221, bearing of trend extension of the anti-spin slot 221 along prolonging handle body 22.By on the wall of prolonging handle body 22
It is provided with anti-spin slot 221, bearing of trend extension of the anti-spin slot 221 along prolonging handle body 22, so as to prevent prolonging handle body
22 rotate in pulp cavity.
In order to prevent prolonging handle body 22 from being rotated in pulp cavity by anti-spin slot 221, anti-spin slot 221 is more to be multiple
Individual being provided at circumferentially spaced along prolonging handle body 22 of anti-spin slot 221.It is multiple by the way that anti-spin slot 221 is set to, wherein, Duo Gefang
Spin slot 221 is provided at circumferentially spaced along prolonging handle body 22, so as to by multiple anti-spin slots 221 that prolonging handle body 22 is steady
Surely it is arranged in pulp cavity.
Illustrated for the concrete structure of the tibial prosthesis of the present invention：
The tibial prosthesis of the present invention is made up of tibial plateau 10, sleeve prosthese (transition member 30), prolonging handle 20.
The design of tibial plateau bottom has broken traditional center for supporting construction, designs what is be connected with prolonging handle with inner cone
Form, has also broken traditional use eccentric type prolonging handle and has realized eccentric design form.
The tibial plateau design of the invention, tibial plateau bottom is connection outer cone (the first installation portion 11) design, Ke Yiyu
Prolonging handle matches somebody with somebody form connection to bore；Wherein it is located at the connection outer cone at center, can branch sleeve prosthese；Positioned at the anti-rotation of platform edges
Outer cone (vertical columns 12), both can connect filling block when there is Cranial defect and use, and also can play fixed platform when sclerotin is good
Effect, reaching prevents platform from rotating, with the effect of synosteosis well so that tibial plateau implantation after have good stabilization
Property.
For the design of sleeve prosthese, upper plane is provided with and the internal taper hole (first that outer cone is engaged is connected with tibial plateau
Mounting hole 31), lower plane is provided with two internal taper holes (the second mounting hole 32), for being connected with prolonging handle, two of which inner cone
There are a multiple choices in the distance between hole, and the distance between two internal taper holes also have multiple choices, to realize different size of bias
Away from；Whole sleeve prosthese can be entity design, or loose structure.
For the design of prolonging handle, including prolonging handle tapering (the second installation portion 21), the anti-spin slot of prolonging handle；Prolonging handle tapering
It can be connected with sleeve prosthese internal taper hole, realize different size of eccentric throw, the design can be realized inclined with straight type prolonging handle
The heart is away from without special standby eccentric rod again；The anti-spin slot of prolonging handle can prevent rotation of the prolonging handle in pulp cavity, improve Using prosthesis
Stability afterwards.
Wherein, the distance between extension rod axis and tibial plateau center line are eccentric throw, pass through and adjust extension rod axis
Different size of eccentric throw is can obtain with the distance between tibial plateau center line, can be obtained not by rotating transition member 30
Equidirectional bias.
Sleeve prosthese is connected tibial plateau and prolonging handle, and sleeve is that cone is matched somebody with somebody with tibial plateau, prolonging handle.
The tibial prosthesis of the present invention, only can meet different size of shin bone eccentric throw patient with straight type prolonging handle, break
Existing use eccentric type prolonging handle realizes eccentric design form；Plane is fitted with tibial plateau lower plane on sleeve prosthese,
The stability action of support can be played to tibial plateau, collapsing after platform implantation is prevented, increases post surgery stabilization, extend prosthese
Life-span.Sleeve can have to be rotated at any angle, and this just can reach only with straight type prolonging handle, can meet any big small eccentricity and
The patient demand of any direction eccentric throw, it is adaptable to the patient of any anatomical abnormalities.The component coordinate can be applied to simultaneously left side,
Right side knee joint, is not required to individually designed, reduction stock amount, increases versatility.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
The tibial prosthesis of the present invention between tibial plateau 10 and prolonging handle 20 by being provided with the transition of position-adjustable
Part 30, it is possible to achieve different sufferers for the tibial prosthesis of different eccentric throws demand, wherein, the position of transition member 30 is adjustable
Save land and be arranged on tibial plateau 10, prolonging handle 20 is arranged in transition member 30.In the specific implantation of tibial prosthesis, according to
Sufferer adjusts the position of transition member 30 for the requirement of eccentric throw, and prolonging handle 20 changes relative to the position of tibial plateau 10,
To meet the demand of sufferer.
Compared to existing tibial prosthesis, because the eccentric throw selection of existing prosthese prolonging handle is limited, the operation can be made to be difficult
Carry out, and the present invention tibial prosthesis by the way that the position-adjustable of transition member 30 is arranged on tibial plateau 10, so as to prolong
Endface position of the long handle 20 by transition member 30 along tibial plateau 10 is adjustably mounted on tibial plateau 10, it is possible to achieve
Different sufferers for the tibial prosthesis of different eccentric throws demand so that solving tibial prosthesis of the prior art can not realize
The adjustable problem of eccentric throw.
The tibial plateau of the present invention has broken traditional center for supporting construction, and the shape being connected with prolonging handle is designed with inner cone
Formula；The outer cone being connected with prolonging handle is distributed with the invention tibial plateau bottom, more carefully, and the connection outer cone of anti-rotation is designed in both sides, both
Fixed tibial platform can be played when without Cranial defect, increases prosthese stability, in Cranial defect filling block can be coordinated to use again；It is logical
The linking of sleeve prosthese is crossed, the adjustment of eccentric throw can be only realized with straight type prolonging handle, and sleeve prosthetic designs have plurality of specifications
Size, can also coordinate, therefore only can meet any eccentric throw need with straight type prolonging handle after tibial plateau realizes rotation
The dissection patient wanted；Sleeve prosthese also functions to the supporting role to tibial plateau while realizing eccentric.
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 (14)
1. a kind of tibial prosthesis, including tibial plateau (10) and prolonging handle (20), it is characterised in that the tibial prosthesis is also wrapped
Include：
Transition member (30), the transition member (30) is arranged between the tibial plateau (10) and the prolonging handle (20)；
Wherein, it is arranged on the tibial plateau (10) to transition member (30) position-adjustable, so that the prolonging handle
(20) endface position by the transition member (30) along the tibial plateau (10) is adjustably mounted at the shin bone and put down
On platform (10).
2. tibial prosthesis according to claim 1, it is characterised in that the transition member (30) is with perpendicular to the shin bone
The straight line of platform (10) be rotation axis rotatably arranged with；Wherein, the rotation axis of the transition member (30) prolongs with described
The diameter parallel of long handle (20) is set.
3. tibial prosthesis according to claim 2, it is characterised in that there is the first mounting hole on the transition member (30)
(31), the tibial plateau (10) has the first installation portion (11) being adapted with first mounting hole (31), described first
Installation portion (11) is plugged in first mounting hole (31)；Wherein, the rotation axis of the transition member (30) is described the
The center line of one installation portion (11).
4. tibial prosthesis according to claim 3, it is characterised in that the rotation axis of the transition member (30) with it is described
The center line of tibial plateau (10) is overlapped.
5. the tibial prosthesis according to claim 3 or 4, it is characterised in that first mounting hole (31) is bellmouth, institute
It is the tapered stud being adapted with the bellmouth to state the first installation portion (11).
6. the tibial prosthesis according to claim 3 or 4, it is characterised in that the tibial plateau (10) is towards the transition
The side of part (30) has vertical columns (12), has between the vertical columns (12) and first installation portion (11) and allows
Interdigit gap, to avoid the transition member (30).
7. tibial prosthesis according to claim 6, it is characterised in that the vertical columns (12) be it is multiple, it is multiple described
Vertical columns (12) being provided at circumferentially spaced along the tibial plateau (10).
8. the tibial prosthesis according to any one of claim 2 to 4, it is characterised in that have on the transition member (30)
There is the second mounting hole (32), the prolonging handle (20) has the second installation portion being adapted with second mounting hole (32)
(21), second installation portion (21) is detachably inserted in second mounting hole (32).
9. tibial prosthesis according to claim 8, it is characterised in that second mounting hole (32) is multiple, Duo Gesuo
The second mounting hole (32) interval setting is stated, second installation portion (21) is selectively plugged in corresponding one second peace
Fill in hole (32).
10. tibial prosthesis according to claim 9, it is characterised in that multiple second mounting holes (32) are along away from institute
The direction for stating the rotation axis of transition member (30) is set gradually, so that center line and the institute of multiple second mounting holes (32)
The distance between rotation axis of transition member (30) is stated gradually to increase.
11. tibial prosthesis according to claim 8, it is characterised in that second mounting hole (32) is bellmouth, described
Second installation portion (21) is the tapered stud being adapted with the bellmouth.
12. tibial prosthesis according to claim 8, it is characterised in that the prolonging handle (20) have connecting portion (23) and
The prolonging handle body (22) being connected with the connecting portion (23), it is remote that second installation portion (21) is arranged on the connecting portion (23)
From one end of the prolonging handle body (22).
13. tibial prosthesis according to claim 12, it is characterised in that have on the wall of the prolonging handle body (22)
Anti- spin slot (221), bearing of trend extension of the anti-spin slot (221) along the prolonging handle body (22).
14. tibial prosthesis according to claim 13, it is characterised in that the anti-spin slot (221) be it is multiple, it is multiple described
Anti- spin slot (221) being provided at circumferentially spaced along prolonging handle body (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524545.6A CN107280819A (en) | 2017-06-30 | 2017-06-30 | Tibial prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524545.6A CN107280819A (en) | 2017-06-30 | 2017-06-30 | Tibial prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107280819A true CN107280819A (en) | 2017-10-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710524545.6A Pending CN107280819A (en) | 2017-06-30 | 2017-06-30 | Tibial prosthesis |
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| Country | Link |
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| CN (1) | CN107280819A (en) |
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| CN110448392A (en) * | 2019-03-13 | 2019-11-15 | 上海交通大学医学院附属第九人民医院 | A kind of tibial plateau prosthese and preparation method thereof of 3D printing personalization |
| CN111803246A (en) * | 2020-06-11 | 2020-10-23 | 河北春立航诺新材料科技有限公司 | Upper end structure of hip joint prosthesis for replacing small tuberosity part |
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