CN208492404U - Assembly type can extend tumorous type artificial knee joint prosthesis - Google Patents
Assembly type can extend tumorous type artificial knee joint prosthesis Download PDFInfo
- Publication number
- CN208492404U CN208492404U CN201720796177.6U CN201720796177U CN208492404U CN 208492404 U CN208492404 U CN 208492404U CN 201720796177 U CN201720796177 U CN 201720796177U CN 208492404 U CN208492404 U CN 208492404U
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- China
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- cylinder
- moving sleeve
- knee joint
- prosthesis
- artificial knee
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Abstract
The utility model relates to a kind of assembly types can extend tumorous type artificial knee joint prosthesis, it is characterized in that, the artificial knee joint prosthesis includes: fixed jacket cylinder, carve internal thread moving sleeve cylinder, it is rotatably arranged in fixed jacket cylinder and moving sleeve cylinder along axial direction and is the passive rotary shaft being threadedly coupled with moving sleeve cylinder, radially rotational support is in fixed jacket cylinder and capable of driving the active rotation axis of passive rotary shaft rotation, tapered joint in fixed jacket cylinder lower part femoral condyle component and tapered joint in the prosthesis handle component on moving sleeve cylinder top；The rotation of passive rotary shaft can drive moving sleeve cylinder and prosthesis handle component to generate displacement.For the utility model by cleverly Machine Design, realizing only needs a small notch to appear active rotation axis in art, can facilitate, be reliably achieved prosthese extension.The extension system bring soft tissue secondary damage and postoperative high infection rate for avoiding conventional cut, replacing prosthesis assembly.
Description
Technical field
The utility model relates to a kind of artificial prosthesis, and in particular to it is false that a kind of assembly type can extend tumorous type artificial knee joint
Body.
Background technique
For children's knee joint peripheral malignant tumor patient of epiphysis patent, tumorous type Endoprostheses are common control
Treatment mode.But due to being good for side limbs continued propagation, and Ipsilateral growth restriction is postoperative both limbs Length discrepancy, serious shadow often occur
Ring patient's function.The assembly type tumorous type artificial knee joint that clinic is widely used at present then needs to change part prosthese if you need to extend
Component, operation wound is larger, and infection rate after abortion operation is high.And often there is complicated for operation in art, postoperative intensity in the existing prosthese that extends
It is unreliable that length is led to problems such as to lose.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of assembly types can extend tumorous type artificial knee joint vacation
Body.
To achieve the above object, the utility model takes following technical scheme: it is artificial that a kind of assembly type can extend tumorous type
Knee-joint prosthesis, which is characterized in that the artificial knee joint prosthesis includes: fixed jacket cylinder, carves internal thread moving sleeve cylinder,
It is rotatably arranged in the fixed jacket cylinder and moving sleeve cylinder along axial direction and is to be threadedly coupled with the moving sleeve cylinder
Passive rotary shaft, radially rotational support is in the fixed jacket cylinder and capable of driving the master of the passive rotary shaft rotation
Dynamic rotary shaft, tapered joint in fixed jacket cylinder lower part femoral condyle component and tapered joint in moving sleeve cylinder top
Prosthesis handle component；The rotation of the passive rotary shaft can drive the moving sleeve cylinder and prosthesis handle component to generate displacement.
In a preferred embodiment, the fixed jacket cylinder is the tubular construction of upper end opening, lower end closed, described
Moving sleeve cylinder is upper end closed, lower end is open and inner wall carves internal thread tubular construction, the fixed jacket cylinder and activity
The open end of outer sleeve is oppositely arranged.
In a preferred embodiment, the longitudinal rotating shaft includes being carved with externally threaded threaded body and integrally connected
In the cone denticle of the similar bevel gear of the threaded body bottom；The fixation is arranged in the longitudinal rotating shaft with axially rotating
In outer sleeve and moving sleeve cylinder, and the threaded body of the longitudinal rotating shaft is threadedly connected in the moving sleeve cylinder, described
The cone denticle of longitudinal rotating shaft is located in the fixed jacket cylinder.
In a preferred embodiment, the active rotation axis also has the cone denticle of similar bevel gear, the active
The cone denticle of rotary shaft is meshed with the cone denticle of the passive rotary shaft.
In a preferred embodiment, the top of the femoral condyle component has frustum, the bottom of the fixed jacket cylinder
Portion offers the taper hole matched with the frustum of the femoral condyle component, and the femoral condyle component is by its frustum tapered joint described
On fixed jacket cylinder.
In a preferred embodiment, the prosthesis handle component includes tapered joint seat and is connected integrally to the tapered joint seat
The top of the broach of bottom, the moving sleeve cylinder has frustum, offers on the tapered joint seat and the moving sleeve cylinder
The taper hole that matches of frustum, the prosthesis handle component is by its taper hole tapered joint on the moving sleeve cylinder.
In a preferred embodiment, the fixed jacket cylinder is identical with outer diameter with the internal diameter of moving sleeve cylinder.
In a preferred embodiment, screw hole is offered on the fixed jacket cylinder, in artificial knee joint prosthesis tune
After saving appropriate height, using lock screw by the fixed jacket cylinder and passive rotary shaft locked and fixed.
In a preferred embodiment, the passive rotary shaft uses hollow tubular construction, and described in hollow
Passive interior of rotating shaft is provided with metallic strengthening structure.
Because the utility model adopts the above technical scheme, it has the following advantages: the utility model passes through cleverly machine
Tool design, realizing only needs a small notch to appear active rotation axis in art, can facilitate, be reliably achieved prosthese extension.It keeps away
The extension system bring soft tissue secondary damage and postoperative high infection rate exempted from conventional cut, replaced prosthesis assembly.Therefore,
The utility model provides easy, reliable solution for the reconstruction after children's knee joint peripheral Excision of Malignant Tumors.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.It should be appreciated, however, that attached drawing mentions
For only for more fully understanding the utility model, they should not be interpreted as limitations of the present invention.
As shown in Figure 1, artificial knee joint prosthesis provided by the utility model include fixed jacket cylinder 1, moving sleeve cylinder 2,
Longitudinal rotating shaft 3, transverse rotation axis 4, femoral condyle component 5 and prosthesis handle component 6.Wherein, fixed jacket cylinder 1 be upper end it is open,
The tubular construction of lower end closed, moving sleeve cylinder 2 is upper end closed, lower end is open and inner wall carves internal thread tubular construction,
The open end of fixed jacket cylinder 1 and moving sleeve cylinder 2 is oppositely arranged.Longitudinal rotating shaft 3 includes being carved with externally threaded threaded body 31
And it is integrally connected to the cone denticle 32 of the similar bevel gear of 31 bottom of thread segment.Longitudinal rotating shaft 3 is rotationally set along axial direction
It sets in fixed jacket cylinder 1 and moving sleeve cylinder 2, and its threaded body 31 is threadedly connected in moving sleeve cylinder 2, bores denticle 32
In fixed jacket cylinder 1.Transverse rotation axis 4 is radially rotatably supported in fixed jacket cylinder 1, also has similar cone tooth thereon
The cone denticle 41 of wheel, and the cone denticle 31 of longitudinal rotating shaft 3 is meshed with the cone denticle 41 of transverse rotation axis 4.Femoral condyle component 5
Top have frustum, the bottom of fixed jacket cylinder 1 offers the taper hole matched with the frustum of femoral condyle component 5, condyle of femur
Component 5 is by its frustum tapered joint on fixed jacket cylinder 1.Prosthesis handle component 6 includes tapered joint seat 61 and is connected integrally to tapered joint
The top of the broach 62 of 61 bottoms of seat, moving sleeve cylinder 2 has frustum, offers on tapered joint seat 61 and moving sleeve cylinder 2
The taper hole that frustum matches, prosthesis handle component 6 is by its taper hole tapered joint on moving sleeve cylinder 2.
When the utility model is used, 5 He of femoral condyle component of suitable types can be selected according to the actual conditions of patient
Prosthesis handle component 6, artificial knee joint prosthesis and shin bone side prosthesis are combined use, and the broach 62 of prosthesis handle component 6 is inserted into patient
Femoral bone cavitas medullaris in, 3 passive rotation of longitudinal rotating shaft that can make to be meshed therewith by actively rotating transverse rotation axis 4, laterally
Rotary shaft 4 can make moving sleeve cylinder 2 and prosthesis handle component 6 generate length travel after rotating, to realize limb lengthening.
In a preferred embodiment, fixed jacket cylinder 1 and 2 internal diameter of moving sleeve cylinder are identical with outer diameter.
In a preferred embodiment, cross recess is carved in one end of transverse rotation axis 4, in order to rotate transverse rotation axis
4。
In a preferred embodiment, a screw hole is offered on fixed jacket cylinder 1, in artificial knee joint prosthesis tune
After saving appropriate height, using lock screw 7 by 3 locked and fixed of fixed jacket cylinder 1 and longitudinal rotating shaft, sliding cycle is avoided to lead
Height is caused to lose.
In a preferred embodiment, longitudinal rotating shaft 3 uses hollow tubular construction, to mitigate artificial knee joint vacation
The overall weight of body；Meanwhile it being internally provided with metallic strengthening structure (not shown) in hollow longitudinal rotating shaft 3, to mention
The overall mechanical properties of high artificial vertebral body.
The various embodiments described above are merely to illustrate the utility model, wherein the structure of each component, connection type and manufacture craft
Etc. may be changed, all equivalents and improvement carried out on the basis of technical solutions of the utility model,
It should not exclude except the protection scope of the utility model.
Claims (9)
1. a kind of assembly type can extend tumorous type artificial knee joint prosthesis, which is characterized in that the artificial knee joint prosthesis includes:
Fixed jacket cylinder,
Internal thread moving sleeve cylinder is carved,
It is rotatably arranged in the fixed jacket cylinder and moving sleeve cylinder along axial direction and is screw thread with the moving sleeve cylinder
The passive rotary shaft of connection,
Radially rotational support be in the fixed jacket cylinder and capable of driving the active rotation axis of the passive rotary shaft rotation,
Tapered joint in the femoral condyle component of fixed jacket cylinder lower part, and
Tapered joint is in the prosthesis handle component on moving sleeve cylinder top；
The rotation of the passive rotary shaft can drive the moving sleeve cylinder and prosthesis handle component to generate displacement.
2. assembly type as described in claim 1 can extend tumorous type artificial knee joint prosthesis, which is characterized in that outside the fixation
Sleeve is the tubular construction of upper end opening, lower end closed, and the moving sleeve cylinder is upper end closed, lower end is open and inner wall is carved with
The open end of the tubular construction of internal screw thread, the fixed jacket cylinder and moving sleeve cylinder is oppositely arranged.
3. assembly type as described in claim 1 can extend tumorous type artificial knee joint prosthesis, which is characterized in that the passive rotation
Shaft includes the cone denticle for the similar bevel gear be carved with externally threaded threaded body and be integrally connected to the threaded body bottom；Institute
Passive rotary shaft is stated to be arranged in axially rotating in the fixed jacket cylinder and moving sleeve cylinder, and the passive rotary shaft
Threaded body is threadedly connected in the moving sleeve cylinder, and the cone denticle of the passive rotary shaft is located in the fixed jacket cylinder.
4. assembly type as claimed in claim 3 can extend tumorous type artificial knee joint prosthesis, which is characterized in that the active rotation
Shaft also has the cone denticle of similar bevel gear, the cone denticle phase of the cone denticle and the passive rotary shaft of the active rotation axis
Engagement.
5. assembly type as claimed in claim 2 can extend tumorous type artificial knee joint prosthesis, which is characterized in that the condyle of femur
The top of component has frustum, and the bottom of the fixed jacket cylinder offers the cone matched with the frustum of the femoral condyle component
Hole, the femoral condyle component is by its frustum tapered joint on the fixed jacket cylinder.
6. assembly type as claimed in claim 2 can extend tumorous type artificial knee joint prosthesis, which is characterized in that the prosthesis handle
Component includes tapered joint seat and the broach for being connected integrally to tapered joint seat bottom, and the top of the moving sleeve cylinder has cone
Platform, offers the taper hole matched with the frustum of the moving sleeve cylinder on the tapered joint seat, and the prosthesis handle component passes through
Its taper hole tapered joint is on the moving sleeve cylinder.
7. assembly type as claimed in claim 2 can extend tumorous type artificial knee joint prosthesis, which is characterized in that outside the fixation
Sleeve is identical with outer diameter with the internal diameter of moving sleeve cylinder.
8. assembly type as described in claim 1 can extend tumorous type artificial knee joint prosthesis, which is characterized in that outside the fixation
Screw hole is offered on sleeve, it, will be outside the fixation using lock screw after artificial knee joint prosthesis is adjusted to appropriate height
Sleeve and passive rotary shaft locked and fixed.
9. assembly type as described in claim 1 can extend tumorous type artificial knee joint prosthesis, which is characterized in that the passive rotation
Shaft uses hollow tubular construction, and the hollow passive interior of rotating shaft is provided with metallic strengthening structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720796177.6U CN208492404U (en) | 2017-07-03 | 2017-07-03 | Assembly type can extend tumorous type artificial knee joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720796177.6U CN208492404U (en) | 2017-07-03 | 2017-07-03 | Assembly type can extend tumorous type artificial knee joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208492404U true CN208492404U (en) | 2019-02-15 |
Family
ID=65300937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720796177.6U Active CN208492404U (en) | 2017-07-03 | 2017-07-03 | Assembly type can extend tumorous type artificial knee joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208492404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107242919A (en) * | 2017-07-03 | 2017-10-13 | 北京大学人民医院 | A kind of assembly type can extend tumorous type artificial knee joint prosthesis |
| CN112674912A (en) * | 2020-12-30 | 2021-04-20 | 北京爱康宜诚医疗器材有限公司 | Long bone lengthening prosthesis |
-
2017
- 2017-07-03 CN CN201720796177.6U patent/CN208492404U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107242919A (en) * | 2017-07-03 | 2017-10-13 | 北京大学人民医院 | A kind of assembly type can extend tumorous type artificial knee joint prosthesis |
| CN112674912A (en) * | 2020-12-30 | 2021-04-20 | 北京爱康宜诚医疗器材有限公司 | Long bone lengthening prosthesis |
| CN112674912B (en) * | 2020-12-30 | 2022-04-12 | 北京爱康宜诚医疗器材有限公司 | Long bone lengthening prosthesis |
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