CN207666733U - A kind of human body sacral prosthesis fusion device - Google Patents
A kind of human body sacral prosthesis fusion device Download PDFInfo
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- CN207666733U CN207666733U CN201720488126.7U CN201720488126U CN207666733U CN 207666733 U CN207666733 U CN 207666733U CN 201720488126 U CN201720488126 U CN 201720488126U CN 207666733 U CN207666733 U CN 207666733U
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- prosthese
- shell
- fusion device
- channel
- human body
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Abstract
The utility model provides a kind of human body sacral prosthesis fusion device, include the prosthese shell consistent with patient's rumpbone appearance profile and size, prosthese shell has the bending part consistent with patient's rumpbone physiologic radian, the autologous bone channel for loading autologous patient bone is provided in prosthese shell, tunnel holes are offered on the conduit wall in autologous bone channel, fixed nail channel is provided on prosthese shell, it is provided with porous packing in prosthese shell, the both sides of prosthese shell are provided with fixed otic placode, and mounting hole is offered on fixed otic placode.It is added to autologous bone channel in the utility model prosthese shell, the tunnel holes for prosthese fusion device to be preferably fixedly mounted are provided on the conduit wall in autologous bone channel, make the autologous bone being seated in autologous bone channel also can cross growth while longitudinal growth, and it grows in porous packing, it is merged with porous packing, entire prosthese fusion device is gradually wrapped up, to substitute the rumpbone of patient.
Description
Technical field
The utility model belongs to bone surgery implant technical field, and in particular to a kind of human body sacral prosthesis fusion device.
Background technology
Rumpbone is important link of the backbone to pelvis transition, to support backbone, maintains pelvic stabilization, transmission upper body part life
Managing load and external heavy burden etc. has extremely important effect.Sacral Tumors occupy certain proportion in tumor of spine case,
Operation excision is the main means of Current therapeutic Sacral Tumors.But due to the particularity of rumpbone present position, operating difficulty compared with
Greatly, and since operation normally partially or even fully destroys waist sacrum, articulatio sacroiliaca, it is postoperative how the waist that restoration and reconstruction are stablized
Sacrum mechanics function is always the problem that medical field is paid high attention to.
The method that waist section is rebuild under the backbone that routinely uses at present, for example, it is nail stick Reconstruction, autologous bone, allograph bone, artificial
There is certain limitation and deficiency in the bone grafting Reconstruction etc. of prosthese, follow closely the postoperative easy loosening of stick Reconstruction, autologous bone and allograph bone
Bone grafting rebuild after there are intensity deficiency easy fracture, the risk of rejection, and the fusion of Artificial Intervention prosthese is bad also happens occasionally.For
Above-mentioned Problems Existing is badly in need of a kind of high intensity at present, the easily small rumpbone of fusion, rejection risk is implanted into prosthese to substitute existing backbone
Method for reconstructing.
Utility model content
The technical problem to be solved by the utility model is in view of the above shortcomings of the prior art, provide a kind of human body
Sacral prosthesis fusion device.The human body sacral prosthesis fusion device solves the postoperative pine of existing nail stick Reconstruction or bone grafting Reconstruction
Dynamic, fracture, reject the problem bad with the therapeutic effects such as bad are merged, and autologous bone channel is added in prosthese shell, and certainly
Tunnel holes are offered on the conduit wall in body bone channel, tunnel holes are provided with conducive to the peace of preferably fixed fae body fusion device
Holding position, and make the autologous bone being seated in autologous bone channel while longitudinal growth also can cross growth, and grow
It into porous packing, is merged with porous packing, gradually wraps up entire prosthese fusion device, with the sacrum for ideally substituting patient
Bone,.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of human body sacral prosthesis fusion device,
It is characterised in that it includes the prosthese shell consistent with patient's rumpbone appearance profile and size, the prosthese shell has and trouble
The consistent bending part of person's rumpbone physiologic radian, the autologous bone being provided in the prosthese shell for loading autologous patient bone are logical
Road offers tunnel holes on the conduit wall in the autologous bone channel, fixed nail channel is provided on the prosthese shell, described
Porous packing is provided in prosthese shell, the both sides of the prosthese shell are provided with fixed otic placode, are opened on the fixed otic placode
Equipped with mounting hole.
A kind of above-mentioned human body sacral prosthesis fusion device, which is characterized in that the quantity of the fixed nail channel be two, two
A fixed nail channel is located at the both sides in autologous bone channel, and the fixed nail channel includes upper channel and lower channel, it is described on
Channel is connected to lower channel to cross, and intersection is located at the back side of the bending part of prosthese shell, and is pierced by prosthese shell.
Above-mentioned a kind of human body sacral prosthesis fusion device, which is characterized in that the porous packing is microcellular structure, described
The pore diameter of microcellular structure is 0.1mm~2mm, and porosity is 60%~90%, and the structure cell in the microcellular structure is four sides
Body, octahedron or dodecahedron.
Above-mentioned a kind of human body sacral prosthesis fusion device, which is characterized in that set on the inside of the bending part of the prosthese shell
It is equipped with reinforcing rib.
Above-mentioned a kind of human body sacral prosthesis fusion device, which is characterized in that offer shell on the shell wall of the prosthese shell
Body through-hole.
Above-mentioned a kind of human body sacral prosthesis fusion device, which is characterized in that the tunnel holes are circular through hole, the circle
A diameter of 0.5mm~2mm of shape through-hole.
Above-mentioned a kind of human body sacral prosthesis fusion device, which is characterized in that the mounting hole is circular through hole, circular through hole
A diameter of 2mm~6mm.
In addition, the utility model additionally provides a kind of method preparing above-mentioned human body sacral prosthesis fusion device, this method packet
Include following steps：
Step 1: patient's rumpbone CT scan picture is rebuild in medical image software minics, patient's rumpbone is measured
Apparent size, and in Solidworks modeling softwares, the original mould of sacral prosthesis is created according to patient's sacrum bone size of measurement
Type, then archetype is imported into Magics softwares, prosthese shell, the autologous bone for designing patient's sacral prosthesis fusion device are logical
Road, fixed nail channel, and according to the interior space dimension of prosthese shell, the structure of porous packing is built, complete human body sacrum
The structure of the threedimensional model of bone prosthese fusion device；
Step 2: being sliced to the threedimensional model of the fusion device of human body sacral prosthesis described in step 1 using layer software is cut
Processing；
Step 3: will obtain cutting in layer data importing quickly shaping device after sliced processing in step 2, beaten using 3D
Print technology prints human body sacral prosthesis fusion device first product；Advance filling metal powder in the quickly shaping device, and according to institute
Prepare the size selection suitable dimension of prosthese fusion device prepares bottom plate；
Step 4: carrying out clear powder and polishing treatment to the human body sacral prosthesis fusion device first product printed in step 3, most
After obtain human body sacral prosthesis fusion device finished product.
Above-mentioned method, which is characterized in that it is 50um~200um to cut layer thickness in slicing processing in step 2.
Above-mentioned method, which is characterized in that metal powder described in step 3 is titanium alloy powder, the titanium alloy powder
Grain size be 10 μm~200 μm.
The utility model has the following advantages compared with prior art：
1, the utility model is added to autologous bone channel in prosthese shell, and is opened up on the conduit wall in autologous bone channel
There are tunnel holes, tunnel holes to be provided with conducive to the installation site of preferably fixed fae body fusion device, and makes to be seated in certainly
Autologous bone in body bone channel while longitudinal growth also can cross growth, and grow in porous packing, and it is porous
Filler merges, and gradually wraps up entire prosthese fusion device, with the rumpbone for ideally substituting patient.
2, the utility model is provided with porous packing, the upper and lower end face of porous packing 5 and prosthese in prosthese shell
Shell 1 is concordant, contributes to form the fusion face of bone uptake, preferably with upper and lower backbone bone fusion, and alleviates prosthese and melts
The weight of clutch realizes the lightweight of human body sacral prosthesis fusion device.
3, itself rumpbone of prosthese shell 1 and patient of the utility model is consistent, since everyone body make-up is deposited
In certain differentiation, requirement body makes, and facilitates the optimization design for carrying out autologous bone channel and fixed nail channel, maximum
Change the spinal bone of ground matching patient, while there is body shell body 1 certain physiologic radian to have rumpbone shape by oneself to simulate human body, reach
The purpose that the upper and lower end face of prosthese fusion device is more preferably bonded.
4, the human body sacral prosthesis of the utility model has many characteristics, such as that high intensity, easily fusion, rejection risk are small, alternative existing
There is column reconstruction method.
5, since rumpbone is important link of the backbone to pelvis transition, to support backbone, pelvic stabilization, transmission body are maintained
Top physiological loads and external heavy burden etc. have extremely important effect, therefore, the intensity of the prosthese shell of the utility model
The intensity needs that can meet human normal life are wanted, can be enhanced by being provided with reinforcing rib on the inside of the bending part of prosthese shell
The intensity of prosthese shell will not be broken easily after so that prosthese fusion device is implanted into human body, be made for a long time using also capable of keeping good
Use effect.
The technical solution of the utility model is described in further detail below by drawings and examples.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram that porous packing is not arranged in the utility model prosthese shell.
Fig. 3 is the structural schematic diagram of the utility model prosthese shell.
Fig. 4 is the structural schematic diagram in the utility model autologous bone channel.
Fig. 5 is the structural schematic diagram of the utility model screw way.
Fig. 6 is that the prosthese fusion device that patient A is prepared using the utility model is carrying out sacral prosthesis fusion device implant surgery
The side view of X-ray afterwards.
Fig. 7 is that the prosthese fusion device that patient A is prepared using the utility model is carrying out sacral prosthesis fusion device implant surgery
The front view of X-ray afterwards.
Reference sign：
1-prosthese shell；2-autologous bone channels；3-fixed nail channels；
3-1-upper channel；3-2-lower channel；4-fixed otic placodes；
5-porous packings；6-mounting holes；7-housing through-holes；
8-tunnel holes；9-reinforcing ribs.
Specific implementation mode
As shown in Figure 1, Figure 2, shown in Fig. 3 Fig. 4 and Fig. 5, the utility model includes and patient's rumpbone appearance profile and size phase one
The prosthese shell 1 of cause, the prosthese shell 1 have the bending part consistent with patient's rumpbone physiologic radian, the prosthese shell 1
It is inside provided with the autologous bone channel 2 for loading autologous patient bone, it is logical that channel is offered on the conduit wall in the autologous bone channel 2
Hole 8 is provided with fixed nail channel 3 on the prosthese shell 1, porous packing 5, the vacation is provided in the prosthese shell 1
The both sides of body shell body 1 are provided with fixed otic placode 4, and mounting hole 6 is offered on the fixed otic placode 4.
It should be noted that the setting of the prosthese shell 1 consistent with patient's rumpbone appearance profile and size be in order to
Patient itself rumpbone is consistent, and due to everyone having a certain difference of body make-up, requirement body makes, and square
Just the optimization design for carrying out autologous bone channel 2 and fixed nail channel 3, maximumlly matches the spinal bone of each patient, while shell
There is body 1 certain physiologic radian to have rumpbone shape by oneself to simulate human body, and the upper and lower end face for reaching prosthese fusion device is more preferably bonded
Purpose.
In the present embodiment, the quantity of the fixed nail channel 3 is two, and two fixed nail channels 3 are located at autologous bone
The both sides in channel 2, the fixed nail channel 3 include upper channel 3-1 and lower channel 3-2, the upper channel 3-1 and lower channel 3-2
Connection crosses, and intersection is located at the back side of the bending part of prosthese shell 1, and is pierced by prosthese shell 1；The upper channel 3-1's is logical
Road junction is located at the upper end of prosthese shell 1, and the passway of the lower channel 3-2 is located at the lower end of prosthese shell 1.
It should be noted that fixing glue passes through fixed nail channel 3 and other screw-rod brackets is coordinated to melt human body sacral prosthesis
Clutch is firmly secured at the rumpbone position of patient (as shown in Figure 6 and Figure 7), is not in postoperative loosening, fracture and rejection
The problem of.
In the present embodiment, the porous packing 5 is microcellular structure, the pore diameter of the microcellular structure is 100 μm~
2000 μm, porosity is 60%~90%, and the structure cell in the microcellular structure is tetrahedron, octahedron or dodecahedron, but not
It is limited to this, structure cell can also be other polyhedral structures.
It should be noted that the upper and lower end face of porous packing 5 is concordant with prosthese shell 1, bone uptake is contributed to form
Fusion face and also mitigates the weight of prosthese fusion device preferably with upper and lower backbone bone fusion.
In the present embodiment, reinforcing rib 9 is provided on the inside of the bending part of the prosthese shell 1, due to rumpbone be backbone to
The important link of pelvis transition to support backbone, maintains pelvic stabilization, transmission upper body part physiological loads and heavy burden etc. in vitro
With extremely important effect, therefore, the intensity of prosthese shell 1 wants to meet the intensity needs of human normal life, by
Reinforcing rib 9 is provided on the inside of the bending part of prosthese shell 1 can enhance the intensity of prosthese shell 1, and prosthese fusion device is made to be implanted into people
It will not be broken easily after body, for a long time using can also keep good using effect.
In the present embodiment, housing through-hole 7 is offered on the shell wall of the prosthese shell 1, the shape of the housing through-hole 7 is
Round, ellipse, strip or rectangle；It is preferred that the upper end of prosthese shell 1 opens up circular housing through-hole 7, prosthese shell 1
Middle lower end opens up the housing through-hole 7 of strip, as shown in Fig. 1 or Fig. 3.
It should be noted that housing through-hole 7 is provided with conducive to the weight of prosthese shell 1 is mitigated, and it is convenient for osteocyte
The outside of prosthese shell 1 is grown to until fully wrapped around implantation prosthese fusion device, preferably with self bone fusion.
In the present embodiment, the quantity of the tunnel holes 8 is multiple, is circular through hole, the diameter of the circular through hole
For 0.5mm~2mm.
It should be noted that the setting of tunnel holes 8 is for preferably fixed fae body position, make to be seated in autologous bone logical
Autologous bone in road 2 while longitudinal growth also can cross growth, and grow in porous packing 5, with porous filling
Object 5 merges, and gradually wraps up entire prosthese fusion device, the rumpbone with ideally replacement patient, and the use of circular tunnel holes 8
Effect is best, can more be evenly spaced in autologous bone channel 2, is also conducive to molded design.
In the present embodiment, the mounting hole 6 is circular through hole, and a diameter of 2mm~4mm of circular through hole, mounting hole 6 is used for
Coordinate with titanium silk, prosthese fusion device can be fixed on to patient's body, and generally selects the titanium silk of 2mm~4mm to draw fixation,
Fixing-stable, with human body without rejection.
The preparation method of the human body sacral prosthesis fusion device of the utility model includes the following steps：
Step 1: patient's rumpbone CT scan picture is rebuild in medical image software minics, patient's rumpbone is measured
Apparent size (X：67mm；Y：43.1mm；Z：42.2mm), and in Solidworks modeling softwares, according to patient's sacrum of measurement
Bone size creates the archetype of sacral prosthesis, then archetype is imported into Magics softwares, design prosthese shell 1, shell
Body wall thickness is 1mm, wedge angle chamfering R5mm, and the length and width and wall thickness of fixed otic placode 4 are 1mm, and 3 fixations are opened up on fixed otic placode 4
Hole 6, a diameter of 5mm of mounting hole 6,3 mounting holes 6 are distributed between two parties, hole interval 10mm；Fix the small of the physical pipe of nail channel 3
Diameter 7.9mm, major diameter 12mm, with 47 ° of prosthese lower planes deflection angle, transition chamfering R0.5mm；The section shape in autologous bone channel
Shape is waist type structure, and the both sides of a length of 20mm, the width 10mm of waist type structure, waist type structure are semicircle, a diameter of 10mm, wall
Thick 1mm；According to 1 interior space dimension of prosthese shell and the needs of Bone Ingrowth, porous packing is built using regular dodecahedron, it is more
The minimum-value aperture 0.3mm of hole filler, porosity 75%, and with prosthese shell, the entity of fixed nail channel, autologous bone channel group
It closes, addition coincidence amount 0.1mm, to ensure prosthese internal bond strength；Complete the threedimensional model of human body sacral prosthesis fusion device
Structure；
Step 2: using threedimensional models of layer software Arcam AB to the fusion device of human body sacral prosthesis described in step 1 is cut
Slicing treatment is carried out, the thickness for cutting layer is 50 μm, and preserves and cut layer data；
Step 3: selecting 45~100 μm of Ti6Al4V powder of Arcam, and selected according to the size of prepared prosthese fusion device
The bottom plate for preparing of suitable dimension is selected, then Ti6Al4V powder is added to electron beam melting rapidform machine (model Arcam A2)
In, then by cutting in layer data importing EBM Control softwares in step 2, Metal Ti6Al4V-50 μm, Net are selected respectively
Ti6Al4V-50 μm of technique prepares human body sacral prosthesis fusion device first product, and preheating temperature is arranged：800 DEG C, pre- thermocurrent 45mA, electricity
Deflection speed 1000mm/s is flowed, single preheating time 8s after forming is started；Melt electric current and should be 8.5mA, electric current deflection speed
800mm/s after setting formingspace solid temperature is less than 550 DEG C, opens secondary preheating, and parameter is same as above, it is ensured that forming temperature is not less than 550
℃；
Step 4: using powder-processed equipment (powder-processed equipment for Arcam A2 from tape processing device) and polissoir
(model Lx134Mo) carries out clear powder and polishing treatment to the human body sacral prosthesis fusion device first product printed in step 3, finally
Obtain human body sacral prosthesis fusion device finished product.
Step 5: using supersonic wave cleaning machine (model FRQ-1001T) and autoclave sterilization pot (model LDZX-
50KBS) human body sacral prosthesis fusion device finished product is cleaned, is disinfected, patient's body implant surgery is used for.
Using the utility model prepare human body sacral prosthesis fusion device substitute patient rumpbone, and Beijing hospital into
Prosthese fusion device is fixed on patient's body by row sacral prosthesis fusion device implant surgery using nail stick and titanium silk, and postoperative patient is fast
X-ray is checked in fast rehabilitation, and human body sacral prosthesis fusion device manufactured in the present embodiment is in good (such as Fig. 6 in patient's body fixed position
Shown in Fig. 7), prosthese is bonded completely, no rejection.
The above is only the preferred embodiment of the utility model, is not imposed any restrictions to the utility model.Every
This is factually still fallen within to any simple modification, change and equivalence change made by above example with new technique essence
In the protection domain of utility model technical solution.
Claims (7)
1. a kind of human body sacral prosthesis fusion device, which is characterized in that include consistent with patient's rumpbone appearance profile and size
Prosthese shell (1), the prosthese shell (1) have the bending part consistent with patient's rumpbone physiologic radian, the prosthese shell
(1) it is provided with the autologous bone channel (2) for loading autologous patient bone in, is opened up on the conduit wall of the autologous bone channel (2)
There are tunnel holes (8), fixed nail channel (3) is provided on the prosthese shell (1), is provided in the prosthese shell (1) more
The both sides of hole filler (5), the prosthese shell (1) are provided with fixed otic placode (4), are offered on the fixed otic placode (4) solid
Determine hole (6).
2. a kind of human body sacral prosthesis fusion device according to claim 1, which is characterized in that the fixed nail channel (3)
Quantity be two, two fixed nail channels (3) are located at the both sides of autologous bone channel (2), and the fixed nail channel (3) is wrapped
Upper channel (3-1) and lower channel (3-2) are included, the upper channel (3-1) is connected to lower channel (3-2) to be crossed, and intersection is located at vacation
The back side of the bending part of body shell body (1), and it is pierced by prosthese shell (1).
3. a kind of human body sacral prosthesis fusion device according to claim 1, which is characterized in that the porous packing (5)
Pore diameter for microcellular structure, the microcellular structure is 0.1mm~2mm, and porosity is 60%~90%, the microcellular structure
Interior structure cell is tetrahedron, octahedron or dodecahedron.
4. a kind of human body sacral prosthesis fusion device according to claim 1,2 or 3, which is characterized in that the prosthese shell
(1) reinforcing rib (9) is provided on the inside of bending part.
5. a kind of human body sacral prosthesis fusion device according to claim 1,2 or 3, which is characterized in that the prosthese shell
(1) housing through-hole (7) is offered on shell wall.
6. a kind of human body sacral prosthesis fusion device according to claim 1,2 or 3, which is characterized in that the tunnel holes
(8) it is circular through hole, a diameter of 0.5mm~2mm of the circular through hole.
7. a kind of human body sacral prosthesis fusion device according to claim 1,2 or 3, which is characterized in that the mounting hole (6)
For circular through hole, a diameter of 2mm~6mm of circular through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488126.7U CN207666733U (en) | 2017-05-04 | 2017-05-04 | A kind of human body sacral prosthesis fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488126.7U CN207666733U (en) | 2017-05-04 | 2017-05-04 | A kind of human body sacral prosthesis fusion device |
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| CN207666733U true CN207666733U (en) | 2018-07-31 |
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| CN201720488126.7U Expired - Fee Related CN207666733U (en) | 2017-05-04 | 2017-05-04 | A kind of human body sacral prosthesis fusion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049566A (en) * | 2017-05-04 | 2017-08-18 | 西安赛隆金属材料有限责任公司 | A kind of human body sacral prosthesis fusion device and preparation method thereof |
| WO2021027281A1 (en) * | 2019-08-10 | 2021-02-18 | 山东百多安医疗器械股份有限公司 | Porous bionic cervical vertebra intervertebral fusion cage and manufacturing method therefor |
-
2017
- 2017-05-04 CN CN201720488126.7U patent/CN207666733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049566A (en) * | 2017-05-04 | 2017-08-18 | 西安赛隆金属材料有限责任公司 | A kind of human body sacral prosthesis fusion device and preparation method thereof |
| WO2021027281A1 (en) * | 2019-08-10 | 2021-02-18 | 山东百多安医疗器械股份有限公司 | Porous bionic cervical vertebra intervertebral fusion cage and manufacturing method therefor |
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