CN206534736U - A kind of femoral head inner supporting device - Google Patents
A kind of femoral head inner supporting device Download PDFInfo
- Publication number
- CN206534736U CN206534736U CN201621265267.4U CN201621265267U CN206534736U CN 206534736 U CN206534736 U CN 206534736U CN 201621265267 U CN201621265267 U CN 201621265267U CN 206534736 U CN206534736 U CN 206534736U
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- China
- Prior art keywords
- femoral head
- support body
- supporting device
- inner supporting
- head inner
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Abstract
The utility model discloses a kind of femoral head inner supporting device, including the cylindrical support body with network structure, the front end of the support body is provided with the hemispherical supporting part with network structure, and the end of the support body is provided with the fixation kit being fixed on the support body on femoral head.The femoral head inner supporting device that the utility model is provided, support body of the present utility model is implanted in femoral head, the supporting part of support body front end is supported to femoral head, it is fixed on using fixation kit of the present utility model on the bone outside femoral head, you can the support body and supporting part of femoral head inner supporting device of the present utility model are fixed on the position that femoral head is implanted into.After inner supporting device of the present utility model is fixed, situation about shifting will not occur over time, it ensure that the support lasting to femoral head, the mechanical property of femoral head is ensure that, prevents femoral head from collapsing again, it is ensured that the smooth fast row of the surgical procedure of patient.
Description
Technical field
The utility model, which is related in medicine equipment, more particularly to a kind of implanted unit bone, is used for the support of supporting femoral head
Device.
Background technology
The bone at caput femoris necrosis is supported at present, the support meanss such as Patent No. for preventing bone from collapsing
201520151774.4, the applying date is 2015.03.17, entitled " a kind of mesh-supported device for being used to treat caput femoris necrosis "
Utility model disclosed in eyelid retractor, including head, body portion and the part of afterbody three, and head, body portion and afterbody be connected as a single entity
And internal engraved structure, head is with body portion axis angle into obtuse angle, and head is curved hemisphere, and body portion is cylindric, body portion wall
On have multiple hexagon hollow out through holes, and supported on inwall with hexagonal network, after eyelid retractor implanted femur head's neck, head
Portion's hemisphere is placed upwards, can be achieved to effective support of the femoral head collapsed.But the eyelid retractor of this structure is directly placed
To the position for needing to support, it is impossible to fixed, easily occur the phenomenon shifted over time, if eyelid retractor is shifted,
Femoral head can not be supported, femoral head also occurs that the phenomenon collapsed.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of femoral head inner supporting device, branch of the present utility model
It after support arrangement is implanted in femoral head, can be fixed to outside femoral head, it is to avoid the phenomenons of support meanss displacements, can realize
Lasting to femoral head is supported, and effectively prevents collapse of femoral head.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of femoral head inner supporting device, bag
The cylindrical support body with network structure is included, it is in hemisphere that the front end of the support body, which is provided with network structure,
The supporting part of shape, the fixation kit being fixed on the support body on femoral head of the end setting of the support body.
Further, the fixation kit includes being provided with along the axis side of support body by the side of support body tip
The fixed part for extending extension on the outside of femoral head to edge and being fixedly connected with the end of the extension.
Further, the extension includes the extension board being connected with the support body tip and is slidedly assemblied in institute
The expansion plate on extension board is stated, locking member is provided between the extension board and the expansion plate.
Further, the fixed part include being connected with the expansion plate end and setting at an angle fixed plate,
The lateral surface of the fixed plate, which has, to be provided with fixing screws in the radian fitted with the femoral head periphery, the fixed plate and wears
The fixing hole crossed.
Further, the femoral head inner supporting device also includes strutting group by what the hemispheric supporting part was strutted
Part.
Further, described strutting assembly includes being installed in the lower end of the support body and axis supports this with described
It is provided with pilot hole, the guide plate and is oriented in described along its axis on the guide plate that the axis of body is overlapped, the guide plate
The mobile pull bar for being inserted with hollow structure, the front end of the pull bar and institute in intercommunicating pore, the pilot hole are provided with the outside of hole
State and be fixedly connected at the top of hemispheric supporting part, the rear end of the pull bar is freely set, the rear end of the pull bar be installed with
The drive nut that the rear end face block of the guide plate coordinates.
Further, the material of the femoral head inner supporting device is located at the magnesium conjunction using by magnesium alloy substrate and painting
The strontium-doped hydroxyapatite coating layer of auri external surface is constituted；The magnesium alloy substrate is made up of component Mg, Ca, Sr and Zn；Institute
That states strontium-doped hydroxyapatite coating layer is coated with thickness for 0.1mm~0.3mm.
Further, the thickness that is coated with of the strontium-doped hydroxyapatite coating layer is 0.25mm.
The beneficial effects of the utility model are：The femoral head inner supporting device that the utility model is provided, by the utility model
Support body be implanted in femoral head, the supporting part of support body front end is supported to femoral head, utilizes the utility model
Fixation kit be fixed on the bone outside femoral head, you can by the support sheet of femoral head inner supporting device of the present utility model
Body and supporting part are fixed on the position that femoral head is implanted into., will not after femoral head inner supporting device of the present utility model is fixed
Over time, there is situation about shifting, it is ensured that the support lasting to femoral head, it is ensured that the mechanical property of femoral head
Can, prevent femoral head from collapsing again, it is ensured that the surgical procedure of patient is smoothed out.
Further extension is stretching structure, can be applicable the marrow channel of different depth.
The strutting assembly further set, larger marrow channel need not be bored when early stage is implanted on femoral head,
Larger Area of bearing equally can be obtained after implantation, the mechanical property of femoral head will not be damaged, while increase is to femur
The Area of bearing of head, further prevents collapsing for femoral head.
The material of further femoral head inner supporting device of the present utility model uses component to be closed for Mg, Ca, Sr and Zn magnesium
Auri body, by rational composition design, and processing preparation technology, obtained femoral head inner supporting device has suitable power
Learn performance and excellent decay resistance.By being coated with strontium-doped hydroxyapatite coating layer, Ke Yijin in magnesium alloy substrate outer surface
One step improves the decay resistance of material, while significantly improving the biocompatibility of material.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the utility model femoral head inner supporting device；
Fig. 2 is the stereogram of the embodiment of the utility model femoral head inner supporting device；
Fig. 3 be the utility model femoral head inner supporting device another embodiment in strutting assembly structural representation.
Embodiment
In the description of embodiment of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal stroke
To ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", the instruction such as " outer " side
Position or position relationship are, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplification is retouched
State, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second " etc. are only used for describing purpose, without
It is understood that to indicate or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", one or more this feature can be expressed or be implicitly included to the feature of " second " etc..Retouched of the present utility model
In stating, unless otherwise indicated, the implication of " multiple " refers to two or more.Term "and/or" used in this specification
Include the arbitrary and all combination of one or more related Listed Items.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly.For example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
For the ease of understanding the utility model, below in conjunction with the accompanying drawings and specific embodiment, the utility model is carried out more detailed
Thin explanation.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can be with many different
Form is realized, however it is not limited to embodiment described by this specification.On the contrary, the purpose for providing these embodiments is made to this
The understanding of the disclosure of utility model is more thorough comprehensive.
As shown in figure 1, the femoral head inner supporting device of the present embodiment includes the cylindrical support sheet with network structure
Body 1, the front end of support body 1 is provided with the hemispherical supporting part 2 with network structure, and the end of support body 1 is set
Having will support body 1 to be fixed on the fixation kit 3 outside femoral head.
It is further preferred that fixation kit 3 includes the axle that body 1 is supported by the edge that the side of the end of support body 1 is set
Line direction edge extends the extension 31 on the outside of femoral head and is fixedly connected with the end of extension 31 and is used to be fixed on femur
Fixed part 32 on head.
It is further preferred that the marrow channel in order to be applicable different depth, the adjustable length of above-mentioned extension 31, it is wrapped
Include and the connected extension board 311 in support body 1 end and the expansion plate 312 being slidedly assemblied on extension board 311, extension board
Locking member is provided between 311 and expansion plate 312 to be locked, locking member can be locked using screw.First adjusted when using
The length of whole good extension, so that above-mentioned fixed part 32 is located at outside femoral head, is then locked by screw.
In other examples, above-mentioned extension can also use the structure of the expansion plate of prior art.
It is further preferred that fixed part 32 include being connected with the end of expansion plate 312 and setting at an angle fixed plate
321, the lateral surface of fixed plate 321, which has, to be provided with fixing screws in the radian fitted with femoral head periphery, fixed plate 321 and passes through
Fixing hole 322.
When in use, support body 1 and supporting part 2 are implanted in femoral head for the femoral head inner supporting device of the present embodiment
In chamber, extension 31 is stretched out along the inwall of marrow channel, the fixed plate 321 of fixed part 32 is fitted in the outer of femoral head
Side face, fixing screws are screwed on bone tissue through fixing hole 322 and fixed plate 321 are fixed on femoral head, thus will support
Body 1 and supporting part 2 are fixedly supported on the interior intracavitary of femoral head.Support body 1 and supporting part 2 over time, and will not be sent out
Raw movement, it is ensured that lasting effective supporting femoral head.
During supporting femoral head, it is desirable to obtain larger Area of bearing, if but prior art is hemispheric using increasing
The area of supporting part, can so cause to need to get out the marrow channel being relatively large in diameter on femoral head, can so cause to femur
The bone tissue of head produces larger destruction, and serious influences the mechanical property of femoral head.Therefore in femoral head of the present utility model
Support meanss are further provided with the strutting assembly 4 for strutting hemispheric supporting part 2.
Femoral head inner supporting device of the present utility model only needs to get out before implantation and the support outer peripheral face size of body 1
The marrow channel being consistent, after the implantation, opens strutting assembly 4, hemispheric supporting part 2 is strutted, to increase its supporting surface
Product.Strutting assembly of the present utility model can make the utility model obtain larger Area of bearing, and can guarantee that again will not destroy stock
The mechanical strength and performance of bone.
It is further preferred that as depicted in figs. 1 and 2, strutting assembly 4 includes being installed in lower end and the axis of support body 1
It is provided with the guide plate 41 that overlaps of axis with supporting body 1, guide plate 41 along its axis on pilot hole, guide plate 41 in leading
Be provided with intercommunicating pore 411, pilot hole the mobile pull bar 42 for being inserted with hollow structure on the outside of to hole, the front end of the pull bar 42 with
The top of hemispheric supporting part 2 is fixedly connected, and rear end is freely set, and spiral shell is provided with the outer peripheral face of the latter half of pull bar 42
Line 43, pull bar 42 is located at the rear end of guide plate 41 and revolves the drive nut 44 being provided with the rear end face block cooperation of guide plate 41.
When being strutted to supporting part 2, turn drive nut 44, to drive pull bar 42 to be moved to the outside of support body 1
Dynamic, the front end of pull bar 42 pulls supporting part 2, is radially expanded supporting part 2, to increase the area of the radial support of supporting part 2.
In other examples, the strutting assembly can also be umbrella support structure, and retracted state is in implantation,
, it is necessary to deploy when being expanded to supporting part after implantation, as shown in figure 3, the strutting assembly includes adjusting lever 51, adjusting lever 51
Upper end is provided with screw thread 52, and the threaded portion of adjusting lever 51 is installed with thread bush 53, and the bar portion turning set of adjusting lever 51 is provided with rotation
Set 54, the block on the axis direction of adjusting lever 51 of turning set 54 is set, and turning set 54 is fixedly installed under support body 1
End.Be hinged and be provided with along at least two uniform support claws 55 of its circumferential direction on the outer peripheral face of turning set 54, support claw 55 it is another
End is freely set, and is hinged between the outer peripheral face of thread bush 53 and the middle part of support claw 55 and is provided with strut 56.To supporting part 2
When being strutted, turn adjusting lever 51, the screw drive thread bush 53 of adjusting lever 51 is moved up and down, to strut or withdraw support claw.
It is further preferred that the material of above-mentioned femoral head inner supporting device is used is located at this by magnesium alloy substrate and painting
The strontium-doped hydroxyapatite coating layer of magnesium alloy substrate outer surface is constituted；Magnesium alloy substrate is made up of component Mg, Ca, Sr and Zn, respectively
The weight percent content of component is respectively：Ca 0.25%, Sr 0.35%, Zn 2.65%, the Mg of surplus；Mix strontium hydroxyl phosphorus
The weight percent content that thickness is Sr in 0.1mm~0.3mm, strontium-doped hydroxyapatite coating layer that is coated with of lime stone coating is 8%
~12%.
It is further preferred that the thickness that is coated with of above-mentioned strontium-doped hydroxyapatite coating layer is 0.25mm.
The material that femoral head inner supporting device of the present utility model is used, passes through rational composition design, and processing system
Standby technique, with suitable mechanical property and excellent decay resistance.It has been investigated that, mechanics of the alloying element to magnesium alloy
Performance and decay resistance influence are larger.Appropriate Zn elements can improve the mechanical property of magnesium alloy, micro Ca element energy
The microscopic structure of enough notable Refining Mg Alloys, improves the mechanical property of magnesium alloy, increases the corrosion resistance of magnesium alloy.Appropriate
Strontium element can then improve the activity of Gegenbaur's cell, accelerate bone tissue healing.Strontium is mixed by being coated with magnesium alloy substrate outer surface
Hydroxyapatite coating layer, can further improve the decay resistance of material, while significantly improving the biocompatibility of material.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure transformation made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in other correlations
Technical field, is included in scope of patent protection of the present utility model.
Claims (6)
1. a kind of femoral head inner supporting device, including the cylindrical support body with network structure, the support body
Front end is provided with the hemispherical supporting part with network structure, it is characterised in that the end of the support body is provided with
The support body is fixed on to the fixation kit on femoral head, the fixation kit includes being set by the side of support body tip
The axis direction for the edge support body put fixes company along the extension extended on the outside of femoral head and with the end of the extension
The fixed part connect, the extension includes the extension board being connected with the support body tip and is slidedly assemblied in the extension
Expansion plate on plate, locking member is provided between the extension board and the expansion plate.
2. femoral head inner supporting device according to claim 1, it is characterised in that the fixed part includes stretching with described
Plate end be connected and setting at an angle fixed plate, the lateral surface of the fixed plate has fits with the femoral head periphery
Radian, be provided with the fixing hole that fixing screws are passed through in the fixed plate.
3. femoral head inner supporting device according to claim 1 or 2, it is characterised in that the femoral head inner supporting device
Also include the strutting assembly for strutting the hemispheric supporting part.
4. femoral head inner supporting device according to claim 3, it is characterised in that described strutting assembly includes being installed in
Along its axis on the guide plate that the lower end of the support body and axis are overlapped with the axis of the support body, the guide plate
It is provided with pilot hole, the guide plate and intercommunicating pore is provided with the outside of the pilot hole, movement is plugged in the pilot hole
Have the pull bar of hollow structure, the front end of the pull bar with being fixedly connected at the top of the hemispheric supporting part, the pull bar
Rear end is freely set, and the rear end of the pull bar is installed with the drive nut with the rear end face block cooperation of the guide plate.
5. femoral head inner supporting device according to claim 4, it is characterised in that the material of the femoral head inner supporting device
Material is constituted using the strontium-doped hydroxyapatite coating layer that the magnesium alloy substrate outer surface is located at by magnesium alloy substrate and painting；It is described
Magnesium alloy substrate is made up of component Mg, Ca, Sr and Zn；The strontium-doped hydroxyapatite coating layer be coated with thickness for 0.1mm~
0.3mm。
6. femoral head inner supporting device according to claim 5, it is characterised in that the strontium-doped hydroxyapatite coating layer
Thickness is coated with for 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621265267.4U CN206534736U (en) | 2016-11-24 | 2016-11-24 | A kind of femoral head inner supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621265267.4U CN206534736U (en) | 2016-11-24 | 2016-11-24 | A kind of femoral head inner supporting device |
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| Publication Number | Publication Date |
|---|---|
| CN206534736U true CN206534736U (en) | 2017-10-03 |
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ID=59937242
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621265267.4U Active CN206534736U (en) | 2016-11-24 | 2016-11-24 | A kind of femoral head inner supporting device |
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| Country | Link |
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| CN (1) | CN206534736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388980A (en) * | 2016-11-24 | 2017-02-15 | 河南理工大学 | Femoral head interior support device |
-
2016
- 2016-11-24 CN CN201621265267.4U patent/CN206534736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388980A (en) * | 2016-11-24 | 2017-02-15 | 河南理工大学 | Femoral head interior support device |
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