CN203710021U - Stacked shank bone backing test piece - Google Patents
Stacked shank bone backing test piece Download PDFInfo
- Publication number
- CN203710021U CN203710021U CN201420085015.8U CN201420085015U CN203710021U CN 203710021 U CN203710021 U CN 203710021U CN 201420085015 U CN201420085015 U CN 201420085015U CN 203710021 U CN203710021 U CN 203710021U
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- China
- Prior art keywords
- test specimen
- cylinder
- pad
- tibia
- liner test
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- Expired - Lifetime
Links
- 210000002303 tibia Anatomy 0.000 title claims abstract description 92
- 210000000629 knee joint Anatomy 0.000 claims abstract description 18
- 210000003041 ligament Anatomy 0.000 claims description 39
- 210000000689 upper leg Anatomy 0.000 claims description 17
- 210000001694 thigh bone Anatomy 0.000 abstract 2
- 239000007943 implant Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 210000002967 posterior cruciate ligament Anatomy 0.000 description 5
- 230000004899 motility Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a stacked shank bone backing test piece which is inserted between a thigh bone end component and a shank bone end component of an artificial knee joint. The stacked shank bone backing test piece comprises a backing test piece body and a plurality of first gaskets, wherein the backing test piece body is operationally connected with the thigh bone end component; the first gaskets are stacked between the shank bone end component and the backing test piece body. The stacked shank bone backing test piece has the advantages that the plurality of the first gaskets are stacked between the shank bone end component and the backing test piece body, the total thickness of the backing test piece can be adjusted by increasing the stack quantity of the first gaskets, meanwhile, second gaskets are arranged between the first gaskets and the shank bone end component, and the second thickness of the second gasket is larger than the first thickness of the first gasket, so that the thickness of the backing test piece can be more flexible in terms of combination.
Description
Technical field
This utility model relates to a kind of stack tibia liner test specimen, particularly a kind of stacking tibia liner test specimen of artificial knee joint operation.
Background technology
Artificial knee joint is used for the treatment of knee joint sufferer, yet because different patients' body size difference is excessive, the size of the artificial knee joint that it is required also must have a large amount of different sizes to coordinate.In fact, because involve the difference of patient's situation, patient can install artificial knee joint space in knee position cannot accurately determine before operation.So existing way is to prepare the liner test specimen of a large amount of different sizes, then in the process of operation, test specimen is installed to patient's knee, and then picks out best size, finally the implant liner of correspondingly-sized is implanted to the artificial knee joint in patient's body.
Yet, before each operation, all to prepare the test specimen of a large amount of different sizes in advance, this will inevitably bring the rising of cost, and can give making troubles of carrying and deposit.Moreover, a large amount of test specimens are carried to the operating room through aseptic process, also can increase risk and the workload of aseptic process.
Utility model content
The purpose of this utility model is to provide a kind of stack tibia liner test specimen, and it can reduce installs the shared space of test specimen.
According to this utility model, this utility model provides a kind of and has been plugged in the femur end assembly of artificial knee joint and the stack tibia liner test specimen between ligament tibia end assembly comprises liner test specimen body and a plurality of the first pad.Liner test specimen body is connected with femur end assembly operation.The first shim packs is stacked between ligament tibia end assembly and liner test specimen body.
In the one or more embodiments of this utility model, the first above-mentioned pad comprises the first shim body, a plurality of the first cylinder and a plurality of the second cylinder.The first shim body has relative first surface and second surface, and first surface is towards liner test specimen body, and second surface is towards ligament tibia end assembly.The first cylinder is arranged at first surface.Between the first cylinder, define a plurality of the first sockets.The second cylinder is arranged at second surface, and the second cylinder is suitable for being placed in the first socket of another the first pad, and the second cylinder and the first cylinder are fixed mutually.
In the one or more embodiments of this utility model, above-mentioned liner test specimen body comprises supporting part and a plurality of the 3rd cylinder.Supporting part has lower surface, and lower surface is towards ligament tibia end assembly.The 3rd cylinder is arranged at lower surface, and the 3rd cylinder is suitable for being placed in the first socket of the first pad of liner test specimen body, and the 3rd cylinder and the first cylinder are fixed mutually.
In the one or more embodiments of this utility model, the external form of the external form of the second above-mentioned cylinder and size and the 3rd cylinder and measure-alike, and the arrangement mode of the second cylinder is identical with the arrangement mode of the 3rd cylinder.
In the one or more embodiments of this utility model, above-mentioned supporting part has first surface and the second curved surface, and first surface and the second curved surface are back to ligament tibia end assembly.Above-mentioned stack tibia liner test specimen also comprises column piece.Described column piece connects liner test specimen body dismantledly back to a side of ligament tibia end assembly, and between first surface and the second curved surface.
In the one or more embodiments of this utility model, above-mentioned stack tibia liner test specimen also comprises the second pad.Described the second pad is arranged between the first pad and ligament tibia end assembly, and the first pad has the first thickness, and the second pad has the second thickness, and the second thickness is greater than the first thickness.
In the one or more embodiments of this utility model, the second above-mentioned pad comprises the second shim body and a plurality of the 4th cylinder.The second shim body has the 3rd relative surface and the 4th surface, and the 3rd surface is towards liner test specimen body, and the 4th surface is towards ligament tibia end assembly.The 4th cylinder is arranged at the 3rd surface.Between the 4th cylinder, define a plurality of the second sockets, wherein the second cylinder against the first pad of the second pad is suitable for being contained in the second socket, and the 4th cylinder and the second cylinder are fixed mutually.
In the one or more embodiments of this utility model, the external form of the external form of the first above-mentioned cylinder and size and the 4th cylinder and measure-alike, and the arrangement mode of the first cylinder is identical with the arrangement mode of the 4th cylinder.
In the one or more embodiments of this utility model, the thickness of the first above-mentioned pad is identical.
The above-mentioned embodiment of this utility model is compared with known prior art, at least has the following advantages:
(1) this utility model is stacked in a plurality of the first shim packs between ligament tibia end assembly and liner test specimen body, by increasing the stacking quantity of the first pad, can adjust the gross thickness of stack tibia liner test specimen.
(2) this utility model is arranged on the second pad between the first pad and ligament tibia end assembly, and the second thickness of the second pad is greater than the first thickness of the first pad, so the thickness of stack tibia liner test specimen can have more motility in combination.
(3), because column piece connects liner test specimen body dismantledly, therefore, doctor can determine whether stack tibia liner test specimen needs to comprise column piece flexibly according to the actual needs of each operation.
Accompanying drawing explanation
Fig. 1 is according to the using state figure of the stack tibia liner test specimen of embodiment of the present utility model.
Fig. 2 is the three-dimensional assembly diagram of stack tibia liner test specimen of the present utility model.
Fig. 3 is the three-dimensional exploded view of stack tibia liner test specimen of the present utility model.
Fig. 4 is another three-dimensional exploded view of stack tibia liner test specimen of the present utility model.
The specific embodiment
Now with this utility model, coordinate accompanying drawing to disclose a plurality of embodiments, as clearly stated, the details in many practices will be explained in the following description.Yet, should be appreciated that, the details in these practices does not apply to limit this utility model.That is to say, in part embodiment of the present utility model, the details in these practices is non-essential.In addition,, for the purpose of simplifying accompanying drawing, some known structures and assembly will simply represent in the accompanying drawings.
Unless otherwise defined, all vocabulary (comprising technology and scientific terminology) that use herein have its common implication, and its implication can those skilled in the art be understood.Further, the definition of above-mentioned vocabulary in generally conventional dictionary should be understood to the implication consistent with this utility model association area in the content of this description.Unless have especially clearly definition, these vocabulary will not be interpreted as Utopian or too formal implication.
Fig. 1 is the using state figure of the stack tibia liner test specimen 100 of embodiment of the present utility model.As shown in Figure 1, a kind of stack tibia liner test specimen 100, be plugged between femur end assembly (the Femoral Component) 200 and ligament tibia end assembly (Tibial Component) 300 of artificial knee joint, it comprises liner test specimen body (Insert Trial Body) 120 and a plurality of the first pads (First Augment) 130.Femur end assembly 200 can be femur end implant or femur end test specimen, and ligament tibia end assembly 300 can be ligament tibia end implant or ligament tibia end test specimen.In the present embodiment, as shown in Figure 1, femur end assembly 200 is femur end implant, and ligament tibia end assembly 300 is ligament tibia end implant.Femur end implant (that is, femur end assembly 200) is connected to the long-range of patient's femur, and ligament tibia end implant (that is, ligament tibia end assembly 300) is connected to the near-end of patient's tibia.Liner test specimen body 120 connects (that is, slidably mutually butt) with femur end implant (that is, femur end assembly 200) operability.The first pad 130 is stacked between ligament tibia end implant (that is, ligament tibia end assembly 300) and liner test specimen body 120.
Because every patient that artificial knee joint need to be installed has the different bodily form, therefore the demand for stack tibia liner test specimen 100 integral thickness also varies with each individual.Fig. 2 is the three-dimensional assembly diagram of the stack tibia liner test specimen 100 of Fig. 1.In the present embodiment, be stacked on the first pad 130 quantity between ligament tibia end assembly 300 (as shown in Figure 1) and liner test specimen body 120 and be a plurality of (, more than one), yet, doctor can increase or reduce the quantity of the first pad 130 according to actual needs, to increase or to reduce the integral thickness of stack tibia liner test specimen 100.
Fig. 3 is the three-dimensional exploded view of the stack tibia liner test specimen 100 of Fig. 1.Fig. 4 is another three-dimensional exploded view of the stack tibia liner test specimen 100 of Fig. 1.As shown in Figure 3-4, the first pad 130 comprises the first shim body 131, a plurality of the first cylinder 134 and a plurality of the second cylinders 135.The first shim body 131 has relative first surface 132 and second surface 133, and first surface 132 is towards liner test specimen body 120, and second surface 133 is towards ligament tibia end assembly 300 (as shown in Figure 1).The first cylinder 134 is arranged at first surface 132.Between the first cylinder 134, define a plurality of the first socket S1.The second cylinder 135 is arranged on second surface 133, and the second cylinder 135 is suitable for being placed in the first socket S1 of another the first pad 130, and the second cylinder 135 and the first cylinder 134 are fixed mutually.
The second cylinder 135 by the first pad 130 is placed in the first socket S1 of the first corresponding pad 130 the second cylinder 135 and the first cylinder 134 is fixed mutually, and the first pad 130 can be fixed with the relative position of corresponding the first pad 130.And by accurately grasp the first cylinder 134 and the corresponding dimensional tolerance of the second cylinder 135 when producing, the second cylinder 135 of the first pad 130 more can mutually engage with the first cylinder 134 of the first corresponding pad 130 and be tightly fixing.Thus, the first pad 130 can not depart from after being fixed easily each other with the first corresponding pad 130.
As shown in Figure 4, liner test specimen body 120 comprises supporting part 121 and a plurality of the 3rd cylinders 123.Supporting part 121 has lower surface 122, and lower surface 122 is towards ligament tibia end assembly 300 (as shown in Figure 1).The 3rd cylinder 123 is arranged on lower surface 122, and the 3rd cylinder 123 is suitable for being contained in the first socket S1 of the first pad 130 of liner test specimen body 120, and the 3rd cylinder 123 and the first cylinder 134 are fixed mutually.
The 3rd cylinder 123 by liner test specimen body 120 is contained in the first socket S1 of the first pad 130 of liner test specimen body 120 the 3rd cylinder 123 and the first cylinder 134 is fixed mutually, and liner test specimen body 120 can be fixed with the relative position of the first pad 130 against liner test specimen body 120.And, by accurately grasp the first cylinder 134 and the corresponding dimensional tolerance of the 3rd cylinder 123 when producing, the 3rd cylinder 123 of liner test specimen body 120 more can mutually engage with the first cylinder 134 of the first pad 130 against liner test specimen body 120 and be tightly fixing.Thus, liner test specimen body 120 can not depart from after being fixed easily each other with the first pad 130 against liner test specimen body 120.
Moreover, the external form of the external form of the second cylinder 135 and size and the 3rd cylinder 123 and measure-alike, and the arrangement mode of the second cylinder 135 is identical with the arrangement mode of the 3rd cylinder 123.This further illustrates, the second cylinder 135 of the first pad 130 can be contained in the first socket S1 of the first corresponding pad 130, and the 3rd cylinder 123 of liner test specimen body 120 also can be contained in the first socket S1 of the first pad 130 of liner test specimen body 120.Therefore, the concordance in external form and size by the second cylinder 135 and the 3rd cylinder 123, be stacked in the quantity of the first pad 130 between ligament tibia end assembly 300 (as shown in Figure 1) and liner test specimen body 120, can increase simply according to actual needs or reduce.
As Figure 2-3, supporting part 121 has first surface C1 and the second curved surface C2, and first surface C1 and the second curved surface C2 are back to ligament tibia end assembly 300 (as shown in Figure 1).First surface C1 and the second curved surface C2 be in order to against femur end assembly 200, and allow the relative sliding of femur end assembly 200 and liner test specimen body 120.In addition, stack tibia liner test specimen 100 also can comprise column piece (Post) 140.Column piece 140 connects liner test specimen body 120 dismantledly back to a side of ligament tibia end assembly 300 (as shown in Figure 1), and between first surface C1 and the second curved surface C2.
In the process of artificial knee joint is installed, doctor may excise patient's posterior cruciate ligament, and with posterior stabilized (Posterior-Stabilized Type; PS Type) artificial knee joint is implanted in patient's body.When using posterior stabilized artificial knee joint, the stack tibia liner test specimen 100 of arranging in pairs or groups can connect column piece 140, and making stack tibia liner test specimen 100 can be posterior stabilized artificial knee joint, makes correct thickness measuring.
Relatively, doctor also may retain patient's posterior cruciate ligament, and with posterior cruciate ligament conservative (Posterior Cruciate Ligament-Retaining Type; CR Type) artificial knee joint is implanted in patient's body.When using posterior cruciate ligament conservative artificial knee joint, the stack tibia liner test specimen 100 of arranging in pairs or groups can not connect column piece 140, makes stack tibia liner test specimen 100 for posterior cruciate ligament conservative artificial knee joint, to make correct thickness measuring.
In the process operating room of aseptic process, the assembling and dissembling process of the first pad 130 is stressed easily simple.As mentioned above, the process that the first pad 130 is mounted in stack tibia liner test specimen 100 is all carried out with the form of engaging, and process is simply easy.
In order further to improve the motility of adjusting stack tibia liner test specimen 100 thickness, as in Figure 2-4, stack tibia liner test specimen 100 also comprises the second pad (Second Augment) 150.The second pad 150 is arranged between the first pad 130 and ligament tibia end assembly 300 (as shown in Figure 1), and the first pad 130 has the first thickness T H1, and the second pad 150 has the second thickness T H2, and the second thickness T H2 is greater than the first thickness T H1.
As shown in Figure 3-4, the second pad 150 comprises the second shim body 151 and a plurality of the 4th cylinders 154.The second shim body 151 has the 3rd relative 153, the three surfaces 152, the 152 and the 4th surface, surface towards liner test specimen body 120, the four surfaces 153 towards ligament tibia end assembly 300 (as shown in Figure 1).The 4th cylinder 154 is arranged at the 3rd surface 152.Between the 4th cylinder 154, define a plurality of the second socket S2, wherein the second cylinder 135 against the first pad 130 of the second pad 150 is suitable for being contained in the second socket S2, and the 4th cylinder 154 and the second cylinder 135 are fixed mutually.
Moreover, the external form of the external form of the first cylinder 134 and size and the 4th cylinder 154 and measure-alike, and the arrangement mode of the first cylinder 134 is identical with the arrangement mode of the 4th cylinder 154.This further illustrates, and the second cylinder 135 of the first pad 130 can be placed in the first socket S1 of the first corresponding pad 130, also can be placed in the second socket S2 of the second pad 150.Therefore, the concordance in external form and size by the first cylinder 134 and the 4th cylinder 154, be stacked in the quantity of the first pad 130 between ligament tibia end assembly 300 (as shown in Figure 1) and liner test specimen body 120, can increase simply according to actual needs or reduce.
For the concordance on applying, the first thickness T H1 of the first pad 130 can be identical.In the present embodiment, the first thickness T H1 scope of the first pad 130 is 1.5 millimeters to 5 millimeters.Should be appreciated that, above the first thickness T H1 that lifts the first pad 130 is only example, and not in order to limit this utility model, those skilled in the art under this utility model, should look actual needs, suitably select the first thickness T H1 of the first pad 130.
On the other hand, in the present embodiment, the second thickness T H2 scope of the second pad 150 is all 1.5 millimeters to 5 millimeters.Yet as mentioned above, the second thickness T H2 of the second pad 150 can be greater than the first thickness T H1 of the first pad 130.Therefore, illustrate, if the first thickness T H1 of the first pad 130 is 2 millimeters, the second thickness T H2 of the second pad 150 may be selected to be 3 millimeters, as long as the second thickness T H2 is greater than the first thickness T H1.Should be appreciated that, above the second thickness T H2 that lifts the second pad 150 is only example, and not in order to limit this utility model, those skilled in the art under this utility model, should look actual needs, suitably select the second thickness T H2 of the second pad 150.
In sum, the above-mentioned embodiment of this utility model is compared with known prior art, at least has the following advantages:
(1) the above-mentioned embodiment of this utility model is stacked in a plurality of the first shim packs between ligament tibia end assembly and liner test specimen body, therefore, by increasing the stacking quantity of the first pad, can adjust the gross thickness of stack tibia liner test specimen.
(2) the above-mentioned embodiment of this utility model is arranged on the second pad between the first pad and ligament tibia end assembly, and the second thickness of the second pad is greater than the first thickness of the first pad, so the thickness of stack tibia liner test specimen can have more motility in combination.
(3), because column piece connects liner test specimen body dismantledly, therefore, doctor can determine whether stack tibia liner test specimen needs to comprise column piece flexibly according to the actual needs of each operation.
Although this utility model with embodiment openly as above; but this utility model is not limited thereto; any those skilled in the art; within not departing from spirit and scope of the present utility model; can make various selection and change, therefore protection domain of the present utility model is limited by claims and equivalents thereof.
Claims (9)
1. a stack tibia liner test specimen, is inserted between the femur end assembly and ligament tibia end assembly of artificial knee joint, it is characterized in that, described stack tibia liner test specimen comprises:
Liner test specimen body, it is connected with described femur end assembly operation; And
A plurality of the first pads, it is stacked between described ligament tibia end assembly and described liner test specimen body.
2. stack tibia liner test specimen as claimed in claim 1, is characterized in that, described in each, the first pad comprises:
The first shim body, has relative first surface and second surface, and described first surface is towards described liner test specimen body, and described second surface is towards described ligament tibia end assembly;
A plurality of the first cylinders, it is arranged at described first surface, between described a plurality of the first cylinders, defines a plurality of the first sockets; And
A plurality of the second cylinders, it is arranged at described second surface, and described a plurality of the second cylinder is suitable for being placed in described a plurality of first sockets of another the first pad, and described a plurality of the second cylinder and described a plurality of the first cylinder are fixed mutually.
3. stack tibia liner test specimen as claimed in claim 2, is characterized in that, described liner test specimen body comprises:
Supporting part, it has lower surface, and described lower surface is towards ligament tibia end assembly; And
A plurality of the 3rd cylinders, it is arranged at described lower surface, and described a plurality of the 3rd cylinder is suitable for being placed in described a plurality of first sockets of the first pad of described liner test specimen body, and described a plurality of the 3rd cylinder and described a plurality of the first cylinder are fixed mutually.
4. stack tibia liner test specimen as claimed in claim 3, it is characterized in that, the external form of the second cylinder and size and the external form of the 3rd cylinder and measure-alike described in each described in each, and the arrangement mode of described a plurality of the second cylinders is identical with the arrangement mode of described a plurality of the 3rd cylinders.
5. stack tibia liner test specimen as claimed in claim 3, is characterized in that, described supporting part has first surface and the second curved surface, and described first surface and described the second curved surface are back to described ligament tibia end assembly, and described stack tibia liner test specimen also comprises:
Column piece, described column piece connects described liner test specimen body dismantledly back to a side of ligament tibia end assembly, and between described first surface and described the second curved surface.
6. stack tibia liner test specimen as claimed in claim 2, is characterized in that, described stack tibia liner test specimen also comprises:
The second pad, it is arranged between described the first pad and ligament tibia end assembly, and described in each, the first pad has the first thickness, and the second pad has the second thickness, and described the second thickness is greater than the first thickness.
7. stack tibia liner test specimen as claimed in claim 6, is characterized in that, described the second pad comprises:
The second shim body, it has the 3rd relative surface and the 4th surface, and described the 3rd surface is towards described liner test specimen body, and described the 4th surface is towards described ligament tibia end assembly; And
A plurality of the 4th cylinders, it is arranged at the 3rd surface, between described a plurality of the 4th cylinder, define a plurality of the second sockets, wherein described a plurality of the second cylinders against the first pad of described the second pad are suitable for being contained in described a plurality of the second socket, and described a plurality of the 4th cylinder and described a plurality of the second cylinder are fixed mutually.
8. stack tibia liner test specimen as claimed in claim 7, it is characterized in that, the external form of the first cylinder and size and the external form of the 4th cylinder and measure-alike described in each described in each, and the arrangement mode of described a plurality of the first cylinders is identical with the arrangement mode of described a plurality of the 4th cylinders.
9. stack tibia liner test specimen as claimed in claim 1, is characterized in that, described in each, the thickness of the first pad is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085015.8U CN203710021U (en) | 2014-02-27 | 2014-02-27 | Stacked shank bone backing test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085015.8U CN203710021U (en) | 2014-02-27 | 2014-02-27 | Stacked shank bone backing test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710021U true CN203710021U (en) | 2014-07-16 |
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ID=51149229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085015.8U Expired - Lifetime CN203710021U (en) | 2014-02-27 | 2014-02-27 | Stacked shank bone backing test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203710021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344134A (en) * | 2016-09-26 | 2017-01-25 | 河北医科大学第三医院 | Absorbable pads for high tibial osteotomy |
| CN107242920A (en) * | 2017-07-26 | 2017-10-13 | 北京易迈医疗科技有限公司 | Knee joint single condyle attitude measuring and system |
-
2014
- 2014-02-27 CN CN201420085015.8U patent/CN203710021U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344134A (en) * | 2016-09-26 | 2017-01-25 | 河北医科大学第三医院 | Absorbable pads for high tibial osteotomy |
| CN107242920A (en) * | 2017-07-26 | 2017-10-13 | 北京易迈医疗科技有限公司 | Knee joint single condyle attitude measuring and system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
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| CX01 | Expiry of patent term |