CN107647947A - Tibial prosthesis and artificial knee joint - Google Patents
Tibial prosthesis and artificial knee joint Download PDFInfo
- Publication number
- CN107647947A CN107647947A CN201711063265.6A CN201711063265A CN107647947A CN 107647947 A CN107647947 A CN 107647947A CN 201711063265 A CN201711063265 A CN 201711063265A CN 107647947 A CN107647947 A CN 107647947A
- Authority
- CN
- China
- Prior art keywords
- base body
- inserted blocks
- tibial prosthesis
- shin bone
- groove
- 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.)
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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
- A61F2/30—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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
-
- 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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
-
- 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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30607—Kits of prosthetic parts to be assembled in various combinations for forming different prostheses
Abstract
The present invention relates to technical field of medical instruments, more particularly to a kind of tibial prosthesis and artificial knee joint.The tibial prosthesis includes shin bone base body, CR inserted blocks and PS inserted blocks；The one side of the shin bone base body away from fixed column is top surface；The top surface is provided with base body groove；The CR inserted blocks can pass through the base body groove and the dismantled and assembled connection of shin bone base body；The PS inserted blocks can pass through the base body groove and the dismantled and assembled connection of shin bone base body.The artificial knee joint includes tibial prosthesis.It is an object of the invention to provide tibial prosthesis and artificial knee joint, to realize the conversion between the PS types of tibial prosthesis and CR types.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of tibial prosthesis and artificial knee joint.
Background technology
It is a kind of to have column there is the knee-joint prosthesis form of two big main flows in artificial knee joint prosthesis system
PS types tibial prosthesis (referring to shown in Fig. 1-1), another kind are the CR types tibial prosthesis of no column (referring to shown in Fig. 1-2).Its
In, the tibial prosthesis with column coordinates with the lateral femoral condyle prosthesis with cam, and eventually form PS type prostheses assembles relation.
And the tibial prosthesis without column coordinates with camless lateral femoral condyle prosthesis, form CR type prostheses assembles relation.Wherein, PS types
Proprietary name to be posterior stabilized；The proprietary name of CR types is posterior cruciate ligament of knee conservative.
In total knee replacement is carried out, doctor can judge according to the final result checked patient, if
The posterior cruciate ligament of knee of patient does not incur loss or occurred lesion, still has the form of health, and doctor can select in operation
Reservation posterior cruciate ligament of knee is selected, thereby using the knee joint prosthesis system of CR types；If the posterior cruciate ligament of knee of patient damaged or
Lesion it is very serious, lose the due function of ligament, then doctor can select to cut off posterior cruciate ligament of knee in operation, from
And use the knee joint prosthesis system of PS types.
Selection retains or excision posterior cruciate ligament of knee is for operative doctor, is a highly difficult selection.Before surgery
The operation plan of planning there may be inaccuracy, can all may change at any time when real implementation operation.Especially
Before surgery, when determining that selection uses the knee joint prosthesis system of CR types, the posterior cruciate ligament of knee of patient is had been found that in operation
Can not be further continued for using, can only cut off so as to be replaced by use PS types knee joint prosthesis system, or in operation by
The damage of posterior cruciate ligament of knee is result in error, it is also necessary to is replaced by the knee joint prosthesis system using PS types.Due to operation side
The replacing of case, knee joint prosthesis system can be caused to prepare to exist in a hurry, it could even be possible to causing the prosthese report having already turned on
It is useless.
Tibial prosthesis is the important component of knee joint prosthesis system, and the application provides a kind of shin regarding to the issue above
Bone prosthese and artificial knee joint, to realize the conversion between the PS types of tibial prosthesis and CR types.
The content of the invention
It is an object of the invention to provide tibial prosthesis, to realize the conversion between the PS types of tibial prosthesis and CR types.
The present invention also aims to provide artificial knee joint, turned with realizing between the PS types of tibial prosthesis and CR types
Change.
Based on above-mentioned first purpose, tibial prosthesis provided by the invention, including shin bone base body, CR inserted blocks and PS inserted blocks；
The one side of the shin bone base body away from fixed column is top surface；The top surface is provided with base body groove；
The CR inserted blocks can pass through the base body groove and the dismantled and assembled connection of shin bone base body；
The PS inserted blocks can pass through the base body groove and the dismantled and assembled connection of shin bone base body.
Alternatively, the PS inserted blocks include plug division and the uprights being fixedly connected sequentially；The plug division can pass through
The base body groove and the dismantled and assembled connection of shin bone base body；The uprights are the column of the tibial prosthesis；
The plug division is identical with the shape of the CR inserted blocks.
Alternatively, the CR inserted blocks and the PS inserted blocks can respectively with the shin bone base body by screw, pin or
Person's key connection；
Along the width of the base body groove, the CR inserted blocks and the PS inserted blocks can respectively with the basis
Body groove is connected by tenon structure.
Alternatively, the shin bone base body is fixedly installed stop block；
The base body groove is connected along its length direction one end open, the other end with the stop block；
Screw, pin or key can be connected through the stop block with the CR inserted blocks or the PS inserted blocks.
Alternatively, the stop block is provided with backstop tenon bar or the backstop fourth of the twelve Earthly Branches with the one side that the base body groove contacts
Groove；
The respective face of the CR inserted blocks and the PS inserted blocks is provided with and the backstop tenon bar or backstop fourth of the twelve Earthly Branches groove
The backstop fourth of the twelve Earthly Branches groove or backstop tenon bar being engaged.
Alternatively, the bottom land of the base body groove is provided with the first bottom land connecting hole；
Screw, pin either key be connected through the CR inserted blocks with the first bottom land connecting hole or, screw, pin
Or key is connected through the PS inserted blocks with the first bottom land connecting hole.
Alternatively, screw, pin or key pass through the column of the PS inserted blocks；
Section of the base body groove along local width direction is dovetail-shape.
Alternatively, the CR inserted blocks and the PS inserted blocks can pass through tenon structure, spiral shell with the shin bone base body respectively
One or more kinds of connections in line connection, pin connection and key connection.
Alternatively, the periphery of the plug division is provided with screw thread, and accordingly, the base body groove is provided with internal thread,
So that the PS inserted blocks are threadedly coupled with the shin bone base body；
Or the base body groove is the second bottom land connecting hole；Screw, pin or key edge pass through the CR inserted blocks
Or the PS inserted blocks are connected with the second bottom land connecting hole.
Based on above-mentioned second purpose, artificial knee joint provided by the invention, including described tibial prosthesis.
Beneficial effects of the present invention：
Tibial prosthesis provided by the invention, by CR inserted blocks by base body groove and the dismantled and assembled connection of shin bone base body,
PS inserted blocks are by base body groove and the dismantled and assembled connection of shin bone base body, to realize between the PS types of tibial prosthesis and CR types
Conversion；That is, it needs to during using PS type tibial prosthesis, PS inserted blocks are fixedly connected in shin bone base body, it is necessary to using CR type shins
During bone prosthese, CR inserted blocks are fixedly connected in shin bone base body.The tibial prosthesis can help doctor rapidly to make operation
The adjustment of method, facilitates surgical, saves operating time, so as to patient advantageously.
Artificial knee joint provided by the invention includes tibial prosthesis, by PS inserted blocks and CR inserted blocks, realizes tibial prosthesis
PS types and CR types between conversion, doctor can be helped rapidly to make the adjustment of operation method, facilitate surgical,
Operating time is saved, so as to patient advantageously.
Brief description of the drawings
, below will be to tool in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in body embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing be some embodiments of the present invention, for those of ordinary skill in the art, do not paying creative work
Under the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1-1 is the structural representation of existing PS types tibial prosthesis；
Fig. 1-2 is the structural representation of existing CR types tibial prosthesis；
Fig. 2-1 is the explosive view for the first PS type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 2-2 is the first angle structural representation for the first PS type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 2-3 is the second angle structural representation for the first PS type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 2-4 is the A-A of the tibial prosthesis shown in Fig. 2-3 to sectional view；
Fig. 2-5 is the top view of the tibial prosthesis shown in Fig. 2-3；
Fig. 2-6 is the B-B direction sectional view of the tibial prosthesis shown in Fig. 2-5；
Fig. 3-1 is the explosive view for the first CR type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 3-2 is the first angle structural representation for the first CR type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 3-3 is the second angle structural representation for the first CR type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 3-4 is the C-C of the tibial prosthesis shown in Fig. 3-3 to sectional view；
Fig. 3-5 is the top view of the tibial prosthesis shown in Fig. 3-3；
Fig. 3-6 is the D-D of the tibial prosthesis shown in Fig. 3-5 to sectional view；
Fig. 4-1 is the first angle structure of the shin bone base body for the first tibial prosthesis that the embodiment of the present invention one provides
Schematic diagram；
Fig. 4-2 is the second angle structure of the shin bone base body for the first tibial prosthesis that the embodiment of the present invention one provides
Schematic diagram；
Fig. 4-3 is the E-E of the shin bone base body shown in Fig. 4-2 to sectional view；
Fig. 4-4 is the top view of the shin bone base body shown in Fig. 4-2；
Fig. 4-5 is the F-F of the shin bone base body shown in Fig. 4-4 to sectional view；
Fig. 5-1 is the first angle structural representation of the PS inserted blocks for the first tibial prosthesis that the embodiment of the present invention one provides
Figure；
Fig. 5-2 is the second angle structural representation of the PS inserted blocks for the first tibial prosthesis that the embodiment of the present invention one provides
Figure；
Fig. 5-3 is the G-G of the PS inserted blocks shown in Fig. 5-2 to sectional view；
Fig. 5-4 is the top view of the PS inserted blocks shown in Fig. 5-2；
Fig. 6-1 is the first angle structural representation of the CR inserted blocks for the first tibial prosthesis that the embodiment of the present invention one provides
Figure；
Fig. 6-2 is the second angle structural representation of the CR inserted blocks for the first tibial prosthesis that the embodiment of the present invention one provides
Figure；
Fig. 6-3 is the H-H of the CR inserted blocks shown in Fig. 6-2 to sectional view；
Fig. 6-4 is the top view of the CR inserted blocks shown in Fig. 6-2；
Fig. 7-1 is the explosive view for second of PS type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 7-2 is the explosive view for second of CR type tibial prosthesis that the embodiment of the present invention one provides；
Fig. 7-3 is the structural representation of the PS inserted blocks for second of tibial prosthesis that the embodiment of the present invention one provides；
Fig. 7-4 is the I-I of the PS inserted blocks shown in Fig. 7-3 to sectional view；
Fig. 7-5 is the structural representation of the CR inserted blocks for second of tibial prosthesis that the embodiment of the present invention one provides；
Fig. 7-6 is the J-J of the CR inserted blocks shown in Fig. 7-5 to sectional view；
Fig. 8-1 is the schematic diagram of the base body groove for the third tibial prosthesis that the embodiment of the present invention one provides；
Fig. 8-2 is the schematic diagram of the PS inserted blocks for the third tibial prosthesis that the embodiment of the present invention one provides；
Fig. 8-3 is the schematic diagram of the CR inserted blocks for the third tibial prosthesis that the embodiment of the present invention one provides.
Icon：210- shin bone base bodies；211- top surfaces；212- base body grooves；2121- the first bottom land connecting holes；
2122- the second bottom land connecting holes；213- stop blocks；220-CR inserted blocks；230-PS inserted blocks；231- plug divisions；232- uprights；
240- fixed columns.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described reality
It is part of the embodiment of the present invention to apply example, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to what the present invention protected
Scope.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, be only for
It is easy to the description present invention and simplifies description, rather than instruction or implies that signified device or element there must be specific side
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two ", " the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；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
The concrete meaning of language in the present invention.
Embodiment one
Referring to shown in Fig. 2-1 to Fig. 8-3, present embodiments providing a kind of tibial prosthesis；It is this referring to Fig. 2-1 to Fig. 6-4
A kind of PS types for tibial prosthesis that embodiment provides and the accompanying drawings of CR types, wherein, CR inserted blocks or PS inserted blocks and shin bone base
Plinth body passes through tenon structure and a mode connects for screw.It is that another shin bone that the present embodiment provides is false referring to Fig. 7-1 to Fig. 7-6
The PS types of body and the accompanying drawings of CR types, wherein, CR inserted blocks or PS inserted blocks pass through tenon structure and two with shin bone base body
Mode connects for screw.Show referring to the PS types that Fig. 8-1 to Fig. 8-3 is the third tibial prosthesis that the present embodiment provides are related to CR types
It is intended to, wherein, CR inserted blocks or PS inserted blocks are connected through a screw thread with shin bone base body, and screw thread is not shown.
The sagittal plane of the present embodiment, it is that human body is divided into the two-part face in left and right in human anatomy, regardless of
Equity, as long as left and right two parts are exactly sagittal plane.For example, the figure such as Fig. 2-4, Fig. 3-4, Fig. 5-3 and Fig. 7-6 is sagittal
Display figure on face.
Referring to the tibial prosthesis that shown in Fig. 2-1 to Fig. 8-3, the present embodiment provides, applied to artificial knee joint, including shin
Bone base body 210, CR inserted blocks 220 and PS inserted blocks 230.
One side of the shin bone base body 210 away from fixed column 240 is top surface 211；Top surface 211 is provided with base body groove
212.The top surface 211 of shin bone base body 210 is it can be appreciated that the mating surface being connected with lateral femoral condyle prosthesis.Tibial prosthesis
It is used to be connected with the shin bone of human body by fixed column 240.
CR inserted blocks 220 can be by base body groove 212 and the 210 dismantled and assembled connection of shin bone base body, to form CR type shins
Bone prosthese.
PS inserted blocks 230 can be by base body groove 212 and the 210 dismantled and assembled connection of shin bone base body, to form PS type shins
Bone prosthese.
Tibial prosthesis described in the present embodiment, base body groove 212 and shin bone base body 210 are passed through by CR inserted blocks 220
Dismantled and assembled connection, PS inserted blocks 230 are by base body groove 212 and the 210 dismantled and assembled connection of shin bone base body, to realize tibial prosthesis
PS types and CR types between conversion；That is, it needs to during using PS type tibial prosthesis, PS inserted blocks 230 are fixedly connected on shin bone base
During on plinth body 210, it is necessary to using CR type tibial prosthesis, CR inserted blocks 220 are fixedly connected in shin bone base body 210.The shin
Bone prosthese can help doctor rapidly to make the adjustment of operation method, facilitate surgical, save operating time, from
And to patient advantageously.
In the prior art, often prepare PS types in total knee replacement is carried out to close with the two kinds of knee of CR types
Prosthesis system (including lateral femoral condyle prosthesis and tibial prosthesis) is saved, being caught unprepared during preventing that operation plan from changing.However, shin
Bone prosthese is specific for patient, the two sets of tibial prosthesis prepared during operation, undoubtedly adds the stock of medicine equipment producer
Amount, and then the cost of tibial prosthesis is improved, add the financial burden of patient.The tibial prosthesis of the present embodiment, passes through split
The design methods such as formula, versatility, plug-in type, it is creative to solve asking in operation CR types prosthese and the selection of PS types prosthese
Topic, doctor can be helped rapidly to make the adjustment of operation method, save operating time；Meanwhile the tibial prosthesis is inserted by CR
Block 220 and PS inserted blocks 230 switch the switching for realizing CR types prosthese and PS type prostheses, can farthest reduce Medical treatment device
The stock of tool producer, warehousing pressure is alleviated, while reduce raw material usage, can largely reduce cost, improved
The benefit of enterprise.
Referring to shown in Fig. 5-1 to Fig. 5-4, Fig. 7-3, Fig. 7-4, in the alternative of the present embodiment, PS inserted blocks 230 include
The plug division 231 being fixedly connected sequentially and uprights 232.Plug division 231 can pass through base body groove 212 and shin bone basis
210 dismantled and assembled connection of body.Uprights 232 are the column of PS inserted blocks 230, also the as column of tibial prosthesis.
Alternatively, plug division 231 is identical with the shape of CR inserted blocks 220, in order to which doctor operates, is also convenient for tibial prosthesis
Production and processing.Such as plug division 231 namely CR inserted blocks 220 are shaped as cylinder, square column type, elliptical cylinder-shape, rectangular column
Or other any shapes.
Referring to shown in Fig. 8-1 to Fig. 8-3, in the alternative of the present embodiment, plug division 231 is in cylinder, plug division
231 periphery is provided with screw thread, and accordingly, base body groove 212 is provided with internal thread, so that PS inserted blocks 230 and shin bone basis
Body 210 is threadedly coupled；The shape of CR inserted blocks 220 is identical with the shape of plug division 231, therefore the periphery of CR inserted blocks 220 is also provided with
There is screw thread.
In the alternative of the present embodiment, base body groove 212 is the second bottom land connecting hole 2122；Screw, pin or
Key is connected along through CR inserted blocks 220 or PS inserted blocks 230 with the second bottom land connecting hole 2122, i.e., screw, pin or key edge pass through
CR inserted blocks 220 are connected with the second bottom land connecting hole 2122, or, screw, pin or key edge pass through PS inserted blocks 230 and second
Bottom land connecting hole 2122 is connected, and shin bone base body 210 and CR inserted blocks are fixedly connected with the depth direction from base body groove 212
220 or PS inserted blocks 230.
In the alternative of the present embodiment, CR inserted blocks 220 and PS inserted blocks 230 can pass through with shin bone base body 210 respectively
One or more kinds of connections in tenon structure, threaded connection, pin connection and key connection.Such as CR inserted blocks 220 and PS inserted blocks
230 can be connected through a screw thread with shin bone base body 210 respectively, and for example CR inserted blocks 220 and PS inserted blocks 230 can respectively with shin
Bone base body 210 can pass through spiral shell with shin bone base body 210 respectively by pin connection, and for example CR inserted blocks 220 and PS inserted blocks 230
Line connects etc. with tenon structure.CR inserted blocks 220 and PS inserted blocks 230 can also by other means may be used with shin bone base body 210
Dismounting connection.
Referring to shown in Fig. 2-1 to Fig. 6-4, in the alternative of the present embodiment, CR inserted blocks 220 and PS inserted blocks 230 can divide
Screw, pin or key connection are not passed through with shin bone base body 210；Alternatively, CR inserted blocks 220 and PS inserted blocks 230 can be distinguished
It is connected by screw with shin bone base body 210, it is easier, firm using mode connects for screw.
Along the width of base body groove 212, CR inserted blocks 220 and PS inserted blocks 230 can respectively with base body groove
212 are connected by tenon structure.By tenon structure by CR inserted blocks 220 or PS inserted blocks 230 and the base of shin bone base body 210
The grafting of plinth body groove 212, by screw, pin or key connection CR inserted blocks 220 and PS inserted blocks 230 and shin bone base body 210,
On the one hand to improve the connection precision between CR inserted blocks 220 and PS inserted blocks 230 and shin bone base body 210, and then it is false to improve shin bone
The precision of body, on the other hand the connected mode is easy to operate, contributes to doctor to use.Alternatively, base body groove 212
Length direction is parallel with the sagittal plane direction of tibial prosthesis.
Referring to shown in Fig. 4-1, alternatively, shin bone base body 210 is fixedly installed stop block 213；Alternatively, stop block
213 are integrally formed with shin bone base body 210.Stop block 213 such as can also be bonded, be spirally connected at the mode and shin bone base body 210 is fixed
Connection.
Base body groove 212 is connected along its length direction one end open, the other end with stop block 213.Pass through stop block
213, in order to CR inserted blocks 220 or PS inserted blocks 230 base body groove 212 length direction it is spacing, be favorably improved CR
Inserted block 220 or the precision of the grafting of PS inserted blocks 230.Alternatively, shin bone base body 210 includes leading edge and trailing edge, and trailing edge includes a left side
Trailing edge and right trailing edge, trailing edge groove is formed between left back edge and right trailing edge；The openend of base body groove 212 is recessed towards reinforcement
Groove, stop block 213 is close to leading edge.
Screw, pin or key can be connected through stop block 213 with CR inserted blocks 220 or PS inserted blocks 230, with basis
The length direction of body groove 212 fixes CR inserted blocks 220 or PS inserted blocks 230.Alternatively, screw, pin or key being spirally connected or insert
Connect the sagittal plane direction for being oriented parallel to tibial prosthesis.
Alternatively, stop block 213 is provided with backstop tenon bar or backstop fourth of the twelve Earthly Branches groove with the one side that base body groove 212 contacts
(not shown).
The respective face that CR inserted blocks 220 and PS inserted blocks 230 coordinate with stop block 213 is provided with backstop tenon bar or only
The backstop fourth of the twelve Earthly Branches groove or backstop tenon bar that gear fourth of the twelve Earthly Branches groove is engaged.Coordinated by the mortise and tenon of backstop tenon bar and backstop fourth of the twelve Earthly Branches groove, further carried
Fit precision between high CR inserted blocks 220 or PS inserted blocks 230 and stop block 213 on the length direction of base body groove 212,
So as to further increase the precision of tibial prosthesis.Alternatively, width of the backstop tenon bar along base body groove 212 prolongs
Stretch.
Referring to shown in Fig. 7-1, Fig. 7-2, in the alternative of the present embodiment, the bottom land of base body groove 212 is provided with
One bottom land connecting hole 2121；
Screw, pin either key be connected through CR inserted blocks 220 with the first bottom land connecting hole 2121 or, screw, pin
Or key is connected through PS inserted blocks 230 with the first bottom land connecting hole 2121, is fixed with the depth direction from base body groove 212
Connect shin bone base body 210 and CR inserted blocks 220 or PS inserted blocks 230.
Alternatively, screw, pin or key pass through the column of PS inserted blocks 230, namely screw, pin or key to pass through PS
The uprights 232 of inserted block 230；To improve the degree of being connected firmly of PS inserted blocks 230 and shin bone base body 210.
Alternatively, CR inserted blocks 220 or PS inserted blocks 230 and base body groove 212 by swallow-tail form, rectangle, semicircle or
The tenon structure connection of other shapes.Alternatively, section of the base body groove 212 along local width direction is dovetail-shape, so as to
In the production and processing of shin bone base body 210.
Alternatively, CR inserted blocks 220 or PS inserted blocks 230 pass through the pins such as rectangle, circle, cone with shin bone base body 210
Connection.
Alternatively, CR inserted blocks 220 or PS inserted blocks 230 pass through the key connections such as flat key, spline with shin bone base body 210.
In the present embodiment, CR inserted blocks 220 or PS inserted blocks 230 are connected with base body groove 212 by tenon structure, with from
The width constraint CR inserted blocks 220 or PS inserted blocks 230 of base body groove 212；CR can be passed through by screw, pin or key
Inserted block 220/PS inserted blocks 230 are connected with the first bottom land connecting hole 2121, are inserted CR with the depth direction from base body groove 212
Block 220 or PS inserted blocks 230 are fixed in shin bone base body 210；Stop block 213 can also be passed through by screw, pin or key
Be connected with CR inserted block 220/PS inserted blocks 230, with from the length direction of base body groove 212 by CR inserted blocks 220 or PS inserted blocks 230
It is fixed in shin bone base body 210 (referring to shown in Fig. 2-1 to Fig. 6-4)；Simultaneously screw, pin or key can also be used to wear
CR inserted block 220/PS inserted blocks 230 are crossed to be connected with the first bottom land connecting hole 2121, screw, pin or key through stop block 213 with
CR inserted block 220/PS inserted blocks 230 connect, to insert CR inserted blocks 220 or PS from the depth of base body groove 212 and length direction
Block 230 is fixed in shin bone base body 210 (referring to shown in Fig. 7-1 to Fig. 7-6).
When alternatively, using threaded connection, the nominal diameter of screw is not less than M3；Alternatively, the nominal diameter of screw is not
Less than M3, no more than M10.
In surgical procedure, no matter the what type of knee-joint prosthesis of final choice, it is all false first by CR types shin bone
Body, after it is determined that selection is errorless, can select to use the grafting shin bone base body 210 of CR inserted blocks 220, can also select not grafting and
Make base body groove 212 exposed.If finally having changed operation plan, PS type tibial prosthesis have selected, then may be selected by
PS inserted blocks 230, it is inserted into shin bone base body 210, so as to realize the purpose of implantation PS type tibial prosthesis.
Embodiment two
Embodiment two provides a kind of artificial knee joint, and the embodiment includes the tibial prosthesis described in embodiment one, implements
The technical characteristic of tibial prosthesis disclosed in example one is also applied for the embodiment, the skill of one published tibial prosthesis of embodiment
Art feature is not repeated to describe.
The artificial knee joint that the present embodiment provides, including tibial prosthesis, in addition to lateral femoral condyle prosthesis.Tibial prosthesis and stock
Bone condyle prosthese is connected.Tibial prosthesis is CR types, and lateral femoral condyle prosthesis is also CR types；Tibial prosthesis is PS types, lateral femoral condyle prosthesis
Also it is PS types.The movable connection of intercondylar box of the column of the tibial prosthesis of PS types and the lateral femoral condyle prosthesis of PS types.Pass through PS inserted blocks
With CR inserted blocks, the conversion between the PS types of tibial prosthesis and CR types is realized, doctor can be helped rapidly to make operation method
Adjustment, facilitate surgical, save operating time, so as to patient advantageously.
Artificial knee joint described in the present embodiment has the advantages of tibial prosthesis described in embodiment one, the institute of embodiment one public affairs
The advantages of tibial prosthesis opened, is not repeated to describe herein.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；
Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：Its
The technical scheme described in foregoing embodiments can still be modified, it is either special to which part or whole technologies
Sign carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention
The scope of technical scheme.
Claims (10)
1. a kind of tibial prosthesis, it is characterised in that including shin bone base body, CR inserted blocks and PS inserted blocks；
The one side of the shin bone base body away from fixed column is top surface；The top surface is provided with base body groove；
The CR inserted blocks can pass through the base body groove and the dismantled and assembled connection of shin bone base body；
The PS inserted blocks can pass through the base body groove and the dismantled and assembled connection of shin bone base body.
2. tibial prosthesis according to claim 1, it is characterised in that the PS inserted blocks include the grafting being fixedly connected sequentially
Portion and uprights；The plug division can pass through the base body groove and the dismantled and assembled connection of shin bone base body；It is described vertical
Post portion is the column of the tibial prosthesis；
The plug division is identical with the shape of the CR inserted blocks.
3. tibial prosthesis according to claim 1 or 2, it is characterised in that the CR inserted blocks and the PS inserted blocks can divide
Screw, pin or key connection are not passed through with the shin bone base body；
Along the width of the base body groove, the CR inserted blocks and the PS inserted blocks can respectively with the base body groove
Connected by tenon structure.
4. tibial prosthesis according to claim 3, it is characterised in that the shin bone base body is fixedly installed stop block；
The base body groove is connected along its length direction one end open, the other end with the stop block；
Screw, pin or key can be connected through the stop block with the CR inserted blocks or the PS inserted blocks.
5. tibial prosthesis according to claim 4, it is characterised in that the stop block contacts with the base body groove
Simultaneously it is provided with backstop tenon bar or backstop fourth of the twelve Earthly Branches groove；
The respective face of the CR inserted blocks and the PS inserted blocks is provided with and the backstop tenon bar or the matching of backstop fourth of the twelve Earthly Branches groove
The backstop fourth of the twelve Earthly Branches groove or backstop tenon bar of conjunction.
6. tibial prosthesis according to claim 3, it is characterised in that the bottom land of the base body groove is provided with the first groove
Bottom connecting hole；
Screw, pin either key be connected through the CR inserted blocks with the first bottom land connecting hole or, screw, pin or
Key is connected through the PS inserted blocks with the first bottom land connecting hole.
7. tibial prosthesis according to claim 6, it is characterised in that screw, pin or key pass through the PS inserted blocks
Column；
Section of the base body groove along local width direction is dovetail-shape.
8. tibial prosthesis according to claim 1 or 2, it is characterised in that the CR inserted blocks and the PS inserted blocks can divide
It is not connected with the shin bone base body by the one or more in tenon structure, threaded connection, pin connection and key connection.
9. tibial prosthesis according to claim 2, it is characterised in that the periphery of the plug division is provided with screw thread, accordingly
, the base body groove is provided with internal thread, so that the PS inserted blocks are threadedly coupled with the shin bone base body；
Or the base body groove is the second bottom land connecting hole；Screw, pin or key edge pass through the CR inserted blocks or described
PS inserted blocks are connected with the second bottom land connecting hole.
10. a kind of artificial knee joint, it is characterised in that including the tibial prosthesis described in claim any one of 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711063265.6A CN107647947A (en) | 2017-11-02 | 2017-11-02 | Tibial prosthesis and artificial knee joint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711063265.6A CN107647947A (en) | 2017-11-02 | 2017-11-02 | Tibial prosthesis and artificial knee joint |
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| CN201711063265.6A Pending CN107647947A (en) | 2017-11-02 | 2017-11-02 | Tibial prosthesis and artificial knee joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103153237A (en) * | 2010-07-24 | 2013-06-12 | 捷迈有限公司 | Asymmetric tibial components for a knee prosthesis |
| CN103661667A (en) * | 2013-12-11 | 2014-03-26 | 北京航空航天大学 | Smart quadruped robot with flexible waist |
| CN103747762A (en) * | 2011-06-16 | 2014-04-23 | 捷迈有限公司 | Femoral component for knee prosthesis with improved articular characteristics |
| CN104203160A (en) * | 2012-01-30 | 2014-12-10 | 捷迈有限公司 | Asymmetric tibial components for a knee prosthesis |
| CN208808753U (en) * | 2017-11-02 | 2019-05-03 | 北京安颂科技有限公司 | Tibial prosthesis and artificial knee joint |
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2017
- 2017-11-02 CN CN201711063265.6A patent/CN107647947A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103153237A (en) * | 2010-07-24 | 2013-06-12 | 捷迈有限公司 | Asymmetric tibial components for a knee prosthesis |
| CN105167889A (en) * | 2010-07-24 | 2015-12-23 | 捷迈有限公司 | Asymmetric tibial components for a knee prosthesis |
| CN103747762A (en) * | 2011-06-16 | 2014-04-23 | 捷迈有限公司 | Femoral component for knee prosthesis with improved articular characteristics |
| CN104203160A (en) * | 2012-01-30 | 2014-12-10 | 捷迈有限公司 | Asymmetric tibial components for a knee prosthesis |
| CN103661667A (en) * | 2013-12-11 | 2014-03-26 | 北京航空航天大学 | Smart quadruped robot with flexible waist |
| CN208808753U (en) * | 2017-11-02 | 2019-05-03 | 北京安颂科技有限公司 | Tibial prosthesis and artificial knee joint |
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