CN206560489U - Face Cranial defect filling prosthesis before condyle of femur - Google Patents
Face Cranial defect filling prosthesis before condyle of femur Download PDFInfo
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- CN206560489U CN206560489U CN201621308783.0U CN201621308783U CN206560489U CN 206560489 U CN206560489 U CN 206560489U CN 201621308783 U CN201621308783 U CN 201621308783U CN 206560489 U CN206560489 U CN 206560489U
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- China
- Prior art keywords
- face
- condyle
- femur
- main body
- cranial defect
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Abstract
The utility model provides face Cranial defect filling prosthesis before a kind of condyle of femur, including：Main body block, main body block has the composition surface being adapted with the preceding face Cranial defect face of condyle of femur, and main body block is contacted by composition surface with the preceding face Cranial defect face of condyle of femur, and main body block is fixedly connected with condyle of femur；Using face Cranial defect filling prosthesis before the condyle of femur of technical solutions of the utility model, by setting main body block, main body block has the composition surface being adapted with the preceding face Cranial defect face of condyle of femur, main body block is contacted by composition surface with the preceding face Cranial defect face of condyle of femur, meanwhile, main body block is fixedly connected with condyle of femur.After face Cranial defect filling prosthesis is filled on the preceding face Cranial defect face of condyle of femur before the present embodiment is by condyle of femur, will not occur the risk of bone information or fracture, solve the problem of facial coloboma occurs to influence prosthese long term survival after bone information or bone cement fracture using bone cement or bone filling before condyle of femur in the prior art.
Description
Technical field
The utility model is related to area of medical devices, in particular to face Cranial defect filling prosthesis before a kind of condyle of femur.
Background technology
With the raising of surgical technic and prosthetic designs quality, the existence life-span of artificial knee joint greatly improves, but by
In reasons such as infection, loosenings, knee joint is overhauled still very important.
The knee joint overhauled, particularly femur side, typically can be with different degrees of Cranial defect, and Cranial defect has nearly one
Partly involve preceding face.
However, facial coloboma is typically filled using bone cement or bone before condyle of femur of the prior art, but effect and pay no attention to
Want there is the risk for occurring bone information or bone cement fracture, so as to have impact on the long term survival of prosthese.
Utility model content
Main purpose of the present utility model is to provide face Cranial defect filling prosthesis before a kind of condyle of femur, to solve existing skill
Facial coloboma influences prosthese long term survival after occurring bone information or bone cement fracture using bone cement or bone filling before condyle of femur in art
The problem of.
To achieve these goals, according to one side of the present utility model, there is provided face Cranial defect before a kind of condyle of femur
Filling prosthesis, including：Main body block, main body block has the composition surface being adapted with the preceding face Cranial defect face of condyle of femur, and main body block is led to
Cross composition surface to contact with the preceding face Cranial defect face of condyle of femur, main body block is fixedly connected with condyle of femur.
Further, along the bearing of trend of condyle of femur, the outer perimeter of the cross section of main body block gradually increases.
Further, the one end of main body block away from condyle of femur lower end is curved end.
Further, multiple screw holes are offered in main body block, screw hole is used to make screw pass through to fix main body block
On the preceding face Cranial defect face of condyle of femur.
Further, screw hole is two.
Further, the circumferential edge around screw hole is provided with the screw hole reinforcement of annular.
Further, the both sides of main body block are provided with main body reinforcement, and main body reinforcement extends perpendicularly to stock
The bearing of trend of bone condyle.
Further, main body reinforcement is connected with screw hole reinforcement.
Further, main body block has the first network away from the surface of preceding face Cranial defect face side.
Further, the surface engaged in main body block with preceding face Cranial defect face has the second network；Wherein, the second net
The area of the single grid of lattice structure is less than the area of the single grid of the first network.
Further, arc-shaped recess structure, arc-shaped recess are offered on the surface that main body block is engaged with preceding face Cranial defect face
Structure is adapted with the extension rod being arranged on condyle of femur.
Further, main body block offers avoidance breach for avoiding extension rod close to one end of condyle of femur lower end, keeps away
Breach is allowed to connect with arc-shaped recess structure.
Using face Cranial defect filling prosthesis before the condyle of femur of technical solutions of the utility model, by setting main body block, main body
Block has the composition surface being adapted with the preceding face Cranial defect face of condyle of femur, and main body block is lacked by the preceding face bone of composition surface and condyle of femur
Damage face is contacted, meanwhile, main body block is fixedly connected with condyle of femur.Face Cranial defect filling prosthesis is filled before the present embodiment is by condyle of femur
After on to the preceding face Cranial defect face of condyle of femur, will not occur the risk of bone information or fracture, solve condyle of femur in the prior art
The problem of preceding facial coloboma occurs to influence prosthese long term survival after bone information or bone cement fracture using bone cement or bone filling.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 be according to face Cranial defect filling prosthesis before a kind of optional condyle of femur of the utility model embodiment on condyle of femur
Schematic view of the mounting position；
Fig. 2 is the Facad structure according to face Cranial defect filling prosthesis before a kind of optional condyle of femur of the utility model embodiment
Schematic diagram；And
Fig. 3 is the backside structure according to face Cranial defect filling prosthesis before a kind of optional condyle of femur of the utility model embodiment
Schematic diagram.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, main body block；11st, screw hole；12nd, screw hole reinforcement；13rd, main body reinforcement；14th, the first network；15、
Second network；16th, arc-shaped recess structure；17th, breach is avoided；20th, condyle of femur.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
According to face Cranial defect filling prosthesis before the condyle of femur of the utility model embodiment, as shown in figure 1, including：Main body block
10, main body block 10 has the composition surface being adapted with the preceding face Cranial defect face of condyle of femur 20, and main body block 10 passes through composition surface and stock
The preceding face Cranial defect face contact of bone condyle 20, main body block 10 is fixedly connected with condyle of femur 20.
It is main by setting main body block 10 using face Cranial defect filling prosthesis before the condyle of femur of technical solutions of the utility model
Body block 10 has the composition surface being adapted with the preceding face Cranial defect face of condyle of femur 20, and main body block 10 passes through composition surface and condyle of femur 20
Preceding face Cranial defect face contact, meanwhile, main body block 10 is fixedly connected with condyle of femur 20.Face bone lacks before the present embodiment is by condyle of femur
After damage filling prosthesis is filled on the preceding face Cranial defect face of condyle of femur 20, will not occur the risk of bone information or fracture, solve
Facial coloboma influences prosthese long after occurring bone information or bone cement fracture using bone cement or bone filling before condyle of femur in the prior art
The problem of phase survives.
When it is implemented, as shown in Fig. 2 femur from top to bottom arrives the position of condyle of femur 20, its sectional area gradually increases, and is
It is adapted with the profile of condyle of femur 20, along the bearing of trend of condyle of femur 20, the outer perimeter of the cross section of main body block 10 gradually increases
Greatly, wherein, the cross section of main body block 10 is the cross section of the bearing of trend perpendicular to condyle of femur 20, thus, the direction of main body block 10
The width of one end of the upper end of condyle of femur 20 is less than the width of one end towards the lower end of condyle of femur 20.
Further, in order that main body block 10 have rounder and more smooth profile, main body block 10 away from the lower end of condyle of femur 20 one
End, the i.e. upper end of main body block 10 are curved end.
In order to which main body block 10 can be fixed firmly on the preceding face Cranial defect face of condyle of femur 20, opened up in main body block 10
There are multiple screw holes 11, alternatively, screw hole 11 is two, and two screw holes 11 are in main body block 10 along its lateral separation cloth
Put, screw, which is passed through and is tightened on condyle of femur 20, by screw hole 11 can be fixed on main body block 10 the preceding face of condyle of femur 20
On Cranial defect face.It is pyramidal structure in screw hole 11, can be adapted with screw cap, it is ensured that after screw is tightened completely, screw cap
The surface of surface and main body block 10 form a plane, make the outer surface of main body block 10 more smooth.
The folder of screw hole 11 is split in order to prevent the clamping force after screw-driving bigger, alternatively, around the circumference of screw hole 11
Edge is provided with the screw hole reinforcement 12 of annular, and screw hole reinforcement 12 is located on the front of main body block 10, i.e., away from main body
The surface that block 10 is contacted with the preceding face Cranial defect face of condyle of femur 20.
In order to strengthen the overall construction intensity of main body block 10, the both sides of main body block 10 are provided with main body reinforcement 13, main
The bearing of trend for extending perpendicularly to condyle of femur 20 of body reinforcement 13, i.e. transverse direction of the main body reinforcement 13 along condyle of femur 20 is prolonged
Stretch setting.Structure that main body reinforcement 13 also is located on the front of main body block 10 and screw hole reinforcement 12 links into an integrated entity.
In order to mitigate the weight of main body block 10, alternatively, main body block 10 deviates from the surface of preceding face Cranial defect face side, that is, leads
The front of body block 10 has the first network 14, and the area of the single grid of the first network 14 is larger, can effectively mitigate
The weight of main body block 10.
Because the medium position at the back side of main body block 10 needs to design the cavity volume for the extension rod for accommodating condyle of femur 20, therefore,
The middle part thinner thickness of main body block 10, therefore, the first network 14 is not provided with the positive middle part of main body block 10,
First network 14 is provided only on the regional area of the positive both sides of main body block 10, to ensure the structure at the middle part of main body block 10
Intensity.
In order that the back side of main body block 10, i.e. main body block 10 can make bone more preferable with the surface that preceding face Cranial defect face is engaged
Ground is grown into, alternatively, as shown in figure 3, the second network 15 is provided with the back side of main body block 10, the second network 15
The area of single grid is less than the area of the single grid of the first network 14.Bone Ingrowth can preferably be met, it is ensured that main
The stability that body block 10 is combined with bone.
The back side of main body block 10 is provided with arc-shaped recess structure 16, arc-shaped recess structure 16 and the extension rod of condyle of femur 20
Shape is adapted as the cavity volume for accommodating extension rod, after the back side of main body block 10 is engaged with the preceding face Cranial defect face of condyle of femur 20, extension
The surface of bar is fitted completely with the internal face of arc-shaped recess structure 16, has both met the requirement of stability, can also be avoided extension rod.
The extension bar part of the lower end of condyle of femur 20 protrudes more, for the extension bar portion of the lower end of avoiding condyle of femur 20
Point, main body block 10 offers the avoidance breach 17 for avoiding extension rod close to one end of the lower end of condyle of femur 20, and alternatively, this is kept away
Allow breach 17 for rectangle and connect with arc-shaped recess structure 16.
Face Cranial defect filling prosthesis is designed to customize before the condyle of femur of the present embodiment, and 3D printing skill is passed through using titanium alloy
Art is produced.It can also routinize, be produced by 3D printing technique in shape and size using non-customizedization design, prosthese.
Before prosthese filling operation is carried out, hospital collection patient CT data, engineer is handled and analyze data, formulates operation
Scheme simultaneously designs face Cranial defect filling prosthesis before the condyle of femur of the present embodiment, after confirming through doctor, is printed using 3D printing technique
Go out face Cranial defect filling prosthesis and its die trial before bone condyle, by sufficiently post processing, preoperative model surgery is carried out by doctor.
In art, doctor uses conventional surgical techniques, removes articular prosthesis, extension rod and bone cement etc. in joint.By stock
The cushion block die trial of bone distal end, the die trial of femoral-posterior condyles cushion block are arranged in lateral femoral condyle prosthesis die trial according to operation planning model, then will
The die trial of face Cranial defect filling prosthesis is arranged on the Qian Lian Cranial defects area of condyle of femur before the condyle of femur of the present embodiment, then will be provided with
The die trial of distal femur cushion block, the lateral femoral condyle prosthesis die trial of femoral-posterior condyles cushion block die trial are arranged on distal femur.
After confirming using die trial, face Cranial defect filling prosthesis before the condyle of femur of lateral femoral condyle prosthesis die trial and the present embodiment is removed
Die trial.Then the surface sclerotin in condyle of femur Qian Lian Cranial defects area is handled using operation tool, until surface hard bone removes, it is fresh and alive
Cancellous bone expose, then, face Cranial defect filling prosthesis before the condyle of femur of the present embodiment is installed on face Cranial defect before condyle of femur
The planning position in face is simultaneously compressed, it is ensured that facial coloboma surface is fresh and alive before second network and condyle of femur at the back side of main body block 10
Cancellous bone is brought into close contact, and is tightened using fixing screws along alternative screw hole 11.Then, by distal femur cushion block,
Femoral-posterior condyles cushion block is installed on lateral femoral condyle prosthesis and adopted and is screwed.
1-2mm bone water is smeared in Qian Lian Cement fixations area, distal end bone cement fill area and the distal end of femur and postartis
Mud, then by being provided with distal femur cushion block, the lateral femoral condyle prosthesis of femoral-posterior condyles cushion block be placed on the planning position of distal femur,
Fixation simultaneously removes unnecessary bone cement, completes femur side and changes.
The beneficial effect of face Cranial defect filling prosthesis is before the condyle of femur of the present embodiment：
1st, by the selectable screw hole 11 especially set, the short-term stability of prosthese can be conducive to；
2nd, the second network 15 set, the i.e. metal class trabecular bone structure of 3D printing can realize Bone Ingrowth, be beneficial to
The medium-term and long-term stabilization of prosthese；
3rd, screw hole reinforcement 12 and main body reinforcement 13 make prosthese have enough mechanical strengths, reduce risk of breakage；
4th, the first network 14, i.e., big network can be such that prosthese weight mitigates significantly, improve the comfortable of patient
Degree；Beneficial to the stabilization of bone cement between the prosthese and lateral femoral condyle prosthesis of the present embodiment, beneficial to the medium-term and long-term stabilization of lateral femoral condyle prosthesis.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (12)
1. face Cranial defect filling prosthesis before a kind of condyle of femur, it is characterised in that including：
Main body block (10), the main body block (10) has the composition surface being adapted with the preceding face Cranial defect face of condyle of femur (20), institute
State main body block (10) to contact with the preceding face Cranial defect face of the condyle of femur (20) by the composition surface, the main body block
(10) it is fixedly connected with the condyle of femur (20).
2. face Cranial defect filling prosthesis before condyle of femur according to claim 1, it is characterised in that along the condyle of femur (20)
Bearing of trend, the outer perimeter of the cross section of the main body block (10) gradually increases.
3. face Cranial defect filling prosthesis before condyle of femur according to claim 1, it is characterised in that the main body block (10) is remote
One end from the condyle of femur (20) lower end is curved end.
4. face Cranial defect filling prosthesis before condyle of femur according to claim 1, it is characterised in that on the main body block (10)
Multiple screw holes (11) are offered, the screw hole (11) is described so that the main body block (10) to be fixed on for passing through screw
On the preceding face Cranial defect face of condyle of femur (20).
5. face Cranial defect filling prosthesis before condyle of femur according to claim 4, it is characterised in that the screw hole (11) is
Two.
6. face Cranial defect filling prosthesis before condyle of femur according to claim 4, it is characterised in that around the screw hole (11)
Circumferential edge be provided with annular screw hole reinforcement (12).
7. face Cranial defect filling prosthesis before condyle of femur according to claim 6, it is characterised in that the main body block (10)
Both sides are provided with main body reinforcement (13), and the main body reinforcement (13) extends perpendicularly to the condyle of femur (20)
Bearing of trend.
8. face Cranial defect filling prosthesis before condyle of femur according to claim 7, it is characterised in that the main body reinforcement
(13) it is connected with the screw hole reinforcement (12).
9. face Cranial defect filling prosthesis before condyle of femur according to claim 1, it is characterised in that main body block (10) back of the body
There is the first network (14) from the surface of the preceding face Cranial defect face side.
10. face Cranial defect filling prosthesis before condyle of femur according to claim 9, it is characterised in that the main body block (10)
The upper surface engaged with the preceding face Cranial defect face has the second network (15)；
Wherein, the area of the single grid of second network (15) is less than the single net of first network (14)
The area of lattice.
11. face Cranial defect filling prosthesis before condyle of femur according to claim 1, it is characterised in that the main body block (10)
Arc-shaped recess structure (16) is offered on the surface engaged with the preceding face Cranial defect face, the arc-shaped recess structure (16) is with setting
The extension rod put on the condyle of femur (20) is adapted.
12. face Cranial defect filling prosthesis before condyle of femur according to claim 11, it is characterised in that the main body block (10)
The avoidance breach (17) for avoiding the extension rod is offered close to one end of the condyle of femur (20) lower end, described avoid lacks
Mouth (17) connects with the arc-shaped recess structure (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621308783.0U CN206560489U (en) | 2016-11-30 | 2016-11-30 | Face Cranial defect filling prosthesis before condyle of femur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621308783.0U CN206560489U (en) | 2016-11-30 | 2016-11-30 | Face Cranial defect filling prosthesis before condyle of femur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206560489U true CN206560489U (en) | 2017-10-17 |
Family
ID=60028566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621308783.0U Expired - Fee Related CN206560489U (en) | 2016-11-30 | 2016-11-30 | Face Cranial defect filling prosthesis before condyle of femur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206560489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106580523A (en) * | 2016-11-30 | 2017-04-26 | 北京爱康宜诚医疗器材有限公司 | Femoral condyle front bone defect filling prosthesis |
-
2016
- 2016-11-30 CN CN201621308783.0U patent/CN206560489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106580523A (en) * | 2016-11-30 | 2017-04-26 | 北京爱康宜诚医疗器材有限公司 | Femoral condyle front bone defect filling prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20191130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |