CN208808755U - Split type tibia support prosthese and artificial knee joint - Google Patents
Split type tibia support prosthese and artificial knee joint Download PDFInfo
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- CN208808755U CN208808755U CN201721491803.7U CN201721491803U CN208808755U CN 208808755 U CN208808755 U CN 208808755U CN 201721491803 U CN201721491803 U CN 201721491803U CN 208808755 U CN208808755 U CN 208808755U
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Abstract
The utility model relates to the field of medical instrument technology more particularly to a kind of split type tibia support prostheses and artificial knee joint.The split type tibia support prosthese includes tibial base and shin bone keel；The shin bone keel include keel platform and the keel column that is fixedly connected with the keel platform；The tibial base includes base platform, and the base platform is provided with and keel platform corresponding pedestal keel hole；Pedestal keel hole is through-hole；The keel platform passes through pedestal keel hole and the removable connection of the base platform.The artificial knee joint includes the split type tibia support prosthese.The purpose of this utility model is to provide split type tibia support prosthese and artificial knee joints, can save the stock of shin bone die trial in surgical kit, and the step of can reducing surgical operation.
Description
Technical field
The utility model relates to the field of medical instrument technology more particularly to a kind of split type tibia support prosthese and artificial knee to close
Section.
Background technique
Artificial knee joint prosthesis is implanted in human body through knee prosthesis is postoperative, and effect is to restore human normal
Physiological function.In total knee replacement, the processing step of general tibial side is: 1, carrying out proximal tibia osteotomy；2, exist
Proximal tibia installs shin bone die trial；3, keel osteotome passes through the keel hole of shin bone die trial and enters in the shin bone of human body, so that shin
The molding of bone keel；4, keel osteotome and shin bone die trial are withdrawn from from shin bone；5, tibia support prosthese is installed in proximal tibia.
Wherein, for the structural schematic diagram of existing tibia support prosthese referring to Fig. 1, tibia support prosthese 1 shown in figure includes shin
Bone pedestal 11 and the shin bone keel 12 being fixedly connected with tibial base 11；The structural schematic diagram of existing shin bone die trial referring to fig. 2,
Shin bone die trial 2 shown in figure includes die trial keel hole 21.
The processing mode of above-mentioned tibial side is processing mode most conventional at present, and essentially all of producer and doctor exist always
It continues to use.Using such processing mode, needs producer to prepare a whole set of shin bone die trial and be placed in surgical kit, then prepare again
The corresponding artificial knee joint prosthesis such as tibia support prosthese and lateral femoral condyle prosthesis.In addition, doctor needs first to install shin bone at the time of surgery,
Die trial removes shin bone die trial after the molding of shin bone keel again, installs tibia support prosthese again later, and surgical operation step is complicated.
Therefore, the application provides a kind of new split type tibia support prosthese and artificial knee joint regarding to the issue above, with energy
Enough save the stock of shin bone die trial in surgical kit, and the step of surgical operation can be reduced.
Utility model content
The purpose of this utility model is to provide split type tibia support prostheses, are tried with that can save shin bone in surgical kit
The stock of mould, and the step of surgical operation can be reduced.
The purpose of this utility model also resides in offer artificial knee joint, can save shin bone die trial in surgical kit
Stock, and the step of surgical operation can be reduced.
Based on above-mentioned first purpose, split type tibia support prosthese provided by the utility model, including tibial base and shin bone
Keel；
The shin bone keel include keel platform and the keel column that is fixedly connected with the keel platform；
The tibial base includes base platform, and the base platform is provided with pedestal dragon corresponding with the keel platform
Bone hole；Pedestal keel hole is through-hole；
The keel platform passes through pedestal keel hole and the removable connection of the base platform.
The optional technical solution of the utility model is that the base platform is fixedly installed limited step；
The limited step is arranged in pedestal keel hole, and the limited step and the base platform are far from institute
The one side for stating keel column has distance；
One side and the limited step removable connection of the keel platform close to the keel column.
The optional technical solution of the utility model is that the keel platform is provided at least one keel connection through-hole, spiral shell
Nail, pin or key pass through keel connection through-hole and connect with the limited step.
The optional technical solution of the utility model is that the tibial base includes and the fixed company in the periphery of the base platform
The flange connect；The flange is set to one side of the base platform far from the keel column；
The flange is provided at least one flange connection through-hole, and it is logical that screw, pin or key pass through flange connection
Hole is connect with the keel platform.
The optional technical solution of the utility model is that at least part of the keel platform and the base platform cooperates
Face uses taper fit.
The optional technical solution of the utility model is that the taper is Morse's taper or the taper is 0.5 degree -5
Degree.
The optional technical solution of the utility model, which is that the keel platform is used with the base platform, to be threadedly coupled, sells
The one or more that connection, key connection, clamping are connected with taper fit.
The optional technical solution of the utility model is one side of the keel platform far from the keel column and the pedestal
Platform flushes on one side far from the keel column.
The optional technical solution of the utility model is that the keel platform and the base platform are connected using interference fit
It connects.
Based on above-mentioned second purpose, artificial knee joint provided by the utility model is false including the split type tibia support
Body.
The utility model has the beneficial effects that
Split type tibia support prosthese provided by the utility model, including tibial base and shin bone keel, by shin bone base
Pedestal keel hole is arranged in the base platform of seat, so that tibial base can have the function of shin bone die trial；By keel platform with
The removable connection of base platform, so that shin bone keel and the removable connection of tibial base, so that split type tibia support prosthese is realized
The conversion of shin bone die trial and two kinds of functional roles of tibia support prosthese, i.e. tibial base can replace existing shin bone die trial, shin bone base
Seat connects to form tibia support prosthese with shin bone keel, saves the stock of shin bone die trial in surgical kit；Furthermore at the time of surgery,
It does not need to remove tibial base after the molding of shin bone keel, can directly assemble shin bone keel with tibial base, certain
The step of reducing surgical operation in degree, reduce operating time.
Artificial knee joint provided by the utility model, by keel platform and the removable connection of base platform, so that seperated
The conversion of shin bone die trial Yu two kinds of functional roles of tibia support prosthese may be implemented in formula tibia support prosthese, i.e. tibial base can replace existing
Some shin bone die trials, tibial base connect to form tibia support prosthese with shin bone keel, save shin bone die trial in surgical kit
Stock；Directly shin bone keel can also be assembled with tibial base after forming shin bone keel during surgery, in certain journey
The step of reducing surgical operation on degree, reduce operating time.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of existing tibia support prosthese；
Fig. 2 is the structural schematic diagram of existing shin bone die trial；
Fig. 3-1 is the explosive view for the split type tibia support prosthese that the utility model embodiment one provides；
Fig. 3-2 is the first angle structural schematic diagram for the split type tibia support prosthese that the utility model embodiment one provides；
Fig. 3-3 is the second angle structural schematic diagram for the split type tibia support prosthese that the utility model embodiment one provides；
Fig. 3-4 is the sectional view along A-A of split type tibia support prosthese shown in Fig. 3-3；
Fig. 3-5 is the top view of split type tibia support prosthese shown in Fig. 3-3；
Fig. 4-1 is the first angle structural schematic diagram for the tibial base that the utility model embodiment one provides；
Fig. 4-2 is the second angle structural schematic diagram for the tibial base that the utility model embodiment one provides；
Fig. 4-3 is the top view of tibial base shown in Fig. 4-2；
Fig. 4-4 is the B-B direction cross-sectional view of tibial base shown in Fig. 4-2；
Fig. 4-5 is the area the C enlarged drawing of tibial base shown in Fig. 4-4；
Fig. 5-1 is the first angle structural schematic diagram for the shin bone keel that the utility model embodiment one provides；
Fig. 5-2 is the second angle structural schematic diagram for the shin bone keel that the utility model embodiment one provides；
Fig. 5-3 is the D-D of shin bone keel shown in Fig. 5-2 to cross-sectional view；
Fig. 5-4 is the top view of shin bone keel shown in Fig. 5-2；
Fig. 5-5 is the area the E enlarged drawing of shin bone keel shown in Fig. 5-4.
Icon: 1- tibia support prosthese；11- tibial base；12- shin bone keel；2- shin bone die trial；21- die trial keel hole；
100- tibial base；110- base platform；111- pedestal keel hole；112- limited step；120- flange；121- is convex
Edge connects through-hole；200- shin bone keel；210- keel platform；211- keel connect through-hole；220- keel column.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.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. 3-1 to Fig. 5-5, present embodiments providing a kind of split type tibia support prosthese；Fig. 3-1 to Fig. 3-5
For the structural schematic diagram of split type tibia support prosthese provided in this embodiment；Fig. 4-1 to Fig. 4-5 is shin bone provided in this embodiment
The structural schematic diagram of pedestal；Fig. 5-1 to Fig. 5-5 is the degree structural schematic diagram of shin bone keel provided in this embodiment.
Referring to shown in Fig. 3-1 to Fig. 5-5, split type tibia support prosthese (abbreviation tibia support prosthese) provided in this embodiment,
Applied to tibial prosthesis, it is also applied to artificial knee joint, including tibial base 100 and shin bone keel 200；
Shin bone keel 200 include keel platform 210 and the keel column 220 being fixedly connected with keel platform 210；Keel column
220 with the shin bone of human body for being fixedly connected, so that tibia support prosthese is fixedly connected with the shin bone of human body.
Tibial base 100 includes base platform 110, and base platform 110 is provided with pedestal dragon corresponding with keel platform 210
Bone hole 111；Pedestal keel hole 111 is through-hole.
Keel platform 210 is by pedestal keel hole 111 and the removable connection of base platform 110, so that 200 He of shin bone keel
The removable connection of tibial base 100.
Split type tibia support prosthese described in the present embodiment, including tibial base 100 and shin bone keel 200, by shin
Pedestal keel hole 111 is arranged in the base platform 110 of bone pedestal 100, so that tibial base 100 can have the function of shin bone die trial
Energy；By keel platform 210 and the removable connection of base platform 110, so that shin bone keel 200 and tibial base 100 are removable
Connection, so that split type tibia support prosthese realizes the conversion of shin bone die trial and two kinds of functional roles of tibia support prosthese, i.e. shin bone base
Seat 100 can replace existing shin bone die trial, and tibial base 100 and the connection of shin bone keel 200 form tibia support prosthese, save hand
The stock of shin bone die trial in art tool box；Furthermore shin bone keel 200 do not need to remove tibial base 100 after forming at the time of surgery,
Directly shin bone keel 200 and tibial base 100 can be assembled, reduce the step of surgical operation to a certain extent
Suddenly, operating time is reduced.
Split type tibia support prosthese described in the present embodiment, using tibial base 100 and shin bone keel 200 are split type sets
Meter, the processing step of tibial side is in total knee replacement:
1, proximal tibia osteotomy is carried out；
2, tibial base 100 is installed in proximal tibia, to replace existing shin bone die trial；
3, keel osteotome passes through the pedestal keel hole 111 of tibial base 100 and enters in the shin bone of human body, so that human body shin
The hole location molding of installation keel column 220 in bone；
4, keel osteotome is withdrawn from from shin bone, and shin bone keel 200 are installed in proximal tibia, keel column 220 is enabled to be fit into
Default hole location in human tibia, and shin bone keel 200 and tibial base 100 are assembled to form tibia support prosthese.
By split type tibia support prosthese, it can make not having to prepare shin bone die trial again in surgical kit, save operation
The stock of shin bone die trial in tool box reduces the equipment cost of total knee replacement to a certain extent；At the time of surgery,
It does not need to remove shin bone die trial from the shin bone of human body, directly assemble shin bone keel 200 and tibial base 100, certain
The step of surgical operation is reduced in degree, reduces operating time.
In the optinal plan of the present embodiment, keel platform 210 and base platform 110 are using interference fit connection；So that imperial
Bone platform 210 connect with base platform 110 it is stronger so that tibia support prosthese is more stable when in use by patient.
In the optinal plan of the present embodiment, one side of the keel platform 210 far from keel column 220 and base platform 110 are separate
Keel column 220 flushes on one side；Prosthese is padded to improve flat surface and the shin bone of keel platform 210 and the formation of base platform 110
Fitness, so as to improve the fitness of tibia support prosthese and shin bone liner prosthese, and then improve tibia support prosthese and shin
Bone pads the stability for the tibial prosthesis structure that prosthese is formed.
In the optinal plan of the present embodiment, keel platform 210 is threadedly coupled with the use of base platform 110, pin connection, key connect
It connects, be clamped the one or more connected with taper fit.
Optionally, for keel platform 210 with base platform 110 using being threadedly coupled, screw thread nominal diameter size is M1-M10,
Such as nominal diameter is one or more of M1, M2, M3, M4, M6.Optionally, the quantity of screw is no more than 6.Into one
The quantity on step ground, screw is no more than 4.
Optionally, keel platform 210 is used with base platform 110 and is snapped connection；Such as keel platform 210 is provided with card slot
Perhaps raised base platform 110 be provided with the protrusion matched with card slot or protrusion perhaps card slot by tapping or pressing
Etc. modes keel platform 210 is connected in base platform 110.
Optionally, the side that keel platform 210 and base platform 110 are cooperated using slight interference cylindrical conformation or other shapes
Keel platform 210 is connected in base platform 110 by formula by the modes such as tapping or pressing.
Optionally, at least part mating surface of keel platform 210 and base platform 110 uses taper fit；Optionally,
The mating surface of keel platform 210 and base platform 110 is all made of taper fit；By taper fit so that keel platform 210 with
The cooperation precision of base platform 110 is higher.Optionally, taper is Morse's taper or taper is 0.5 degree of -5 degree.By using
Morse's taper uses taper to spend for 0.5 degree -5, to further increase the cooperation essence of keel platform 210 and base platform 110
Degree.
Optionally, at least part mating surface of keel platform 210 and base platform 110 uses taper fit, and keel are flat
Platform 210 is used with base platform 110 and is threadedly coupled；In one side of the keel platform 210 far from keel column 220 and base platform 110
After one side assembly far from keel column 220 flushes, then using the company between screw reinforcing keel platform 210 and base platform 110
It connects, so that the connection between tibial base 100 and shin bone keel 200 is stronger and stablizes.
Connection type between the keel platform 210 of the present embodiment and base platform 110, which can also use, to be threadedly coupled, blocks
It connects and is connected with taper fit, alternatively, being connected using pin connection, clamping with taper fit, alternatively, using threaded connection and clamping etc.
Deng other connection types can also be used.
Referring to shown in Fig. 3-1 to Fig. 5-5, in the optinal plan of the present embodiment, base platform 110 is fixedly installed limiting stand
Rank 112.
Limited step 112 is arranged in pedestal keel hole 111, and limited step 112 and base platform 110 are far from keel column
220 one side has distance.
One side and limited step 112 removable connection of the keel platform 210 close to keel column 220.Pass through limited step
112, in order to which keel platform 210 and the cooperation of base platform 110 assemble, to improve keel platform 210 and base to a certain extent
The fitness of seat platform 110, and then the stability of tibia support prosthese can be improved.
Optionally, limited step 112 is at a distance from one side of the base platform 110 far from keel column 220, is equal to and limiting stand
The thickness for 210 part of keel platform that rank 112 cooperates；So that one side and base platform of the keel platform 210 far from keel column 220
110 flushing on one side far from keel column 220.
Optionally, limited step 112 close to keel column 220 with base platform 110 close to keel column 220 while
It flushes.
In the optinal plan of the present embodiment, keel platform 210 is provided at least one keel connection through-hole 211, screw, pin
Nail or key pass through keel connection through-hole 211 and connect with limited step 112, so that keel platform 210 and limited step 112 are fixed
Connection, and then it is fixedly connected with shin bone keel 200 with tibial base 100.
Optionally, threaded hole is provided on limited step 112, screw passes through keel connection through-hole 211 and limited step 112
It is spirally connected.
Optionally, the quantity of keel connection through-hole 211 is 1-6；For example, the quantity of keel connection through-hole 211 is 2,3
It is a or 4 etc..
In the optinal plan of the present embodiment, tibial base 100 includes the flange being fixedly connected with the periphery of base platform 110
120；Flange 120 is set to one side of the base platform 110 far from keel column 220；Optionally, flange 120 is in a ring.
Flange 120 is provided at least one flange connection through-hole 121, and screw, pin or key pass through flange and connect through-hole
121 connect with keel platform 210 so that keel platform 210 is fixedly connected with base platform 110, and then make shin bone keel 200 with
Tibial base 100 is fixedly connected.
Optionally, threaded hole is provided on keel platform 210, screw passes through flange connection through-hole 121 and keel platform 210
It is spirally connected.
Optionally, the quantity of flange connection through-hole 121 is 1-4；For example, the quantity of flange connection through-hole 121 is 1,2
It is a or 3 etc..
Optionally, flange 120 includes leading edge and rear, and rear includes left back edge and right rear, left back edge and right rear it
Between formed rear groove；The quantity that flange connects through-hole 121 is 1, and the aperture of 1 flange connection through-hole 121 is towards rear emargination
Slot.
Embodiment two
Embodiment two provides a kind of artificial knee joint, which includes that split type tibia support described in embodiment one is false
The technical characteristic of body, split type tibia support prosthese disclosed in embodiment one is also applied for the embodiment, and embodiment one discloses
The technical characteristic of split type tibia support prosthese be not repeated to describe.
Artificial knee joint provided in this embodiment, including split type tibia support prosthese further include shin bone liner prosthese and stock
Bone condyle prosthese.Split type tibia support prosthese and shin bone liner prosthese cooperatively form tibial prosthesis；Tibial prosthesis with condyle of femur vacation
Body is cooperatively connected.By keel platform and the removable connection of base platform, so that shin bone may be implemented in split type tibia support prosthese
The conversion of die trial and two kinds of functional roles of tibia support prosthese, i.e. tibial base can replace existing shin bone die trial, tibial base and
Shin bone keel connect to form tibia support prosthese, save the stock of shin bone die trial in surgical kit；It can also shin during surgery
Directly shin bone keel are assembled with tibial base after the molding of bone keel, reduce surgical operation to a certain extent
Step reduces operating time.
Artificial knee joint described in the present embodiment has the advantages that split type tibia support prosthese, embodiment described in embodiment one
The advantages of split type tibia support prosthese disclosed in one, is not repeated to describe herein.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of split type tibia support prosthese, which is characterized in that including tibial base and shin bone keel；
The shin bone keel include keel platform and the keel column that is fixedly connected with the keel platform；
The tibial base includes base platform, and the base platform is provided with pedestal keel corresponding with the keel platform
Hole；Pedestal keel hole is through-hole；
The keel platform passes through pedestal keel hole and the removable connection of the base platform.
2. split type tibia support prosthese according to claim 1, which is characterized in that the base platform fixed setting is limited
Position step；
The limited step is arranged in pedestal keel hole, and the limited step and the base platform are far from the dragon
The one side of bone column has distance；
One side and the limited step removable connection of the keel platform close to the keel column.
3. split type tibia support prosthese according to claim 2, which is characterized in that the keel platform is provided at least one
A keel connect through-hole, and screw, pin or key pass through keel connection through-hole and connect with the limited step.
4. split type tibia support prosthese according to claim 2, which is characterized in that the tibial base includes and the base
The flange that the periphery of seat platform is fixedly connected；The flange is set to one side of the base platform far from the keel column；
The flange be provided at least one flange connection through-hole, screw, pin or key pass through the flange connection through-hole with
The keel platform connection.
5. split type tibia support prosthese according to claim 1, which is characterized in that the keel platform and the pedestal are flat
At least part mating surface of platform uses taper fit.
6. split type tibia support prosthese according to claim 5, which is characterized in that the taper is Morse's taper, or
The taper is 0.5 degree of -5 degree.
7. split type tibia support prosthese according to claim 1, which is characterized in that the keel platform and the pedestal are flat
The one or more that platform is connected using threaded connection, pin connection, key connection, clamping with taper fit.
8. split type tibia support prosthese according to claim 1, which is characterized in that the keel platform is far from the keel
Column with the base platform far from the keel column while flush.
9. split type tibia support prosthese according to claim 1, which is characterized in that the keel platform and the pedestal are flat
Platform is using interference fit connection.
10. a kind of artificial knee joint, which is characterized in that including the described in any item split type tibia support prostheses of claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721491803.7U CN208808755U (en) | 2017-11-09 | 2017-11-09 | Split type tibia support prosthese and artificial knee joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721491803.7U CN208808755U (en) | 2017-11-09 | 2017-11-09 | Split type tibia support prosthese and artificial knee joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616860A (en) * | 2017-11-09 | 2018-01-23 | 北京安颂科技有限公司 | Split type tibia support prosthese and artificial knee joint |
| CN111616841A (en) * | 2020-05-26 | 2020-09-04 | 天衍医疗器材有限公司 | Novel knee joint prosthesis of locking mechanism |
-
2017
- 2017-11-09 CN CN201721491803.7U patent/CN208808755U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616860A (en) * | 2017-11-09 | 2018-01-23 | 北京安颂科技有限公司 | Split type tibia support prosthese and artificial knee joint |
| CN111616841A (en) * | 2020-05-26 | 2020-09-04 | 天衍医疗器材有限公司 | Novel knee joint prosthesis of locking mechanism |
| CN111616841B (en) * | 2020-05-26 | 2022-04-12 | 天衍医疗器材有限公司 | Knee joint prosthesis of locking mechanism |
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