CN209422088U - Bone cement prosthese integration 3D printing molding die and device - Google Patents
Bone cement prosthese integration 3D printing molding die and device Download PDFInfo
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- CN209422088U CN209422088U CN201821242094.3U CN201821242094U CN209422088U CN 209422088 U CN209422088 U CN 209422088U CN 201821242094 U CN201821242094 U CN 201821242094U CN 209422088 U CN209422088 U CN 209422088U
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- bone cement
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- prosthese
- molding die
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Abstract
The utility model provides bone cement prosthese integration 3D printing molding die and device, is related to the field of medical instrument technology.A kind of bone cement prosthese integration 3D printing molding die, comprising: multiple modules and supporting element；It is successively detachably connected to form mold between the involutory surface of multiple modules, the inner face of the mold includes integrally formed first binding face and the second binding face, and the injection hole for injecting bone cement is provided in one of them described module；It is adapted in mold described in the osteotomy remains partial insertion and with first binding face, the supporting element part is fixed in osteotomy remains and forms Medullary fixation section, another part is located in the second binding face and forms bone cement prosthese, the Medullary fixation section and bone cement prosthese to be integrally formed by pouring bone cement.Medullary fixation section and bone cement prosthese can be integrally formed, avoid two parts and connect existing gap, eliminate mechanics weakness.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly, to a kind of bone cement prosthese integration 3D printing at
Pattern tool and device.
Background technique
Closing on the serious osseous lesion of joint part usually needs lesion bone section to cut off, such as joint proximal end malignant tumour, old age
Humerus head comminuted fracture etc. causes articular defect or missing after the excision of lesion bone section, needs to rebuild, at present joint reconstruction method
Mainly there is tumorous type joint prosthesis to rebuild (tumour knee, tumour hip etc.), joint fusion, bone collection, the molding of bone cement prosthese etc..
Tumorous type joint prosthesis is rebuild expensive, also certain indication and is limited；Joint fusion, bone collection etc. often result in joint
Function is lost, quality of life decline.And the bone cement prosthese of 3D printing technique auxiliary is molded over non-weight bearing joint with good
Idicatio, application are increasingly extensive.
Bone cement prosthese, which is molded in joint reconstruction, important application, especially in joint malignant tumour, old joint powder
Fragility fracture, prosthetic joint infection it is postoperative it is spacious set etc. in diseases using more, 3D printing technique greatly improves bone cement prosthese
Part similarity can almost very mould defect bone section by mirror image again, and perfect reconstruction articular prosthesis avoids the occurrence of previous art
In the defect bone section poor by the coarse and similarity that is made into of manual operations, existing 3D printing bone cement prosthese molding die,
As shown in Figure 1, it is divided into bone cement prosthetic part 1 and Medullary fixation part two parts, centre passes through supporting element (Kirschner wire or steel
Silk) it connects and reinforces.This method is completed in two steps at present, applies bone cement by several times, and first time bone cement is first complete in mold box
It is formed at lesion bone section, bone cement prosthetic part is made, centre implantation is more than the supporting element of bone cement prosthesis length, as in marrow
Fixed part；After bone cement hardening, another bone cement is injected in bone stump pulp cavity, by (the support of Medullary fixation part before hardening
Part) it is inserted, operation is completed after bone cement hardening.The maximum problem of bone cement application twice is that bone cement junction may deposit
In gap, there are mechanics weakness, the later period is easily broken off, operative failure.
In consideration of it, providing a kind of bone cement molding die of raising bone cement junction intensity is particularly important.
The information disclosed in the background technology section is intended only to deepen the reason to the general background technology of the utility model
Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form
Technology.
Utility model content
The first of the utility model is designed to provide a kind of bone cement prosthese integration 3D printing molding die, with very big
Solving bone cement junction in degree, there may be gaps, and there are mechanics weakness, the later period is easily broken off, the skill of operative failure
Art problem.
Bone cement prosthese integration 3D printing molding die provided by the utility model, comprising: multiple modules and supporting element；
It is successively detachably connected to form mold between the involutory surface of multiple modules, the inner face of the mold includes one
Molding first binding face and the second binding face are provided with the injection hole for injecting bone cement in one of them described module；
It is adapted in mold described in the osteotomy remains partial insertion and with first binding face, the supporting element part
It is fixed in osteotomy remains and is formed Medullary fixation section, another part is located in the second binding face and forms bone cement prosthese, institute
It states Medullary fixation section and bone cement prosthese and is integrally formed by pouring bone cement.
On the basis of any of the above-described technical solution, further, bone wax is coated on the involutory surface of multiple modules,
Mold is formed with mutual fastening.
On the basis of any of the above-described technical solution, further, including three modules, three modules are respectively the first mould
Block, the second module and third module；
Successively fastening forms rectangular configuration, and institute between first module, the second module and the involutory surface of third module
The one of surface for stating rectangular configuration bottom remains for the insertion hole for being inserted into osteotomy remains in advance；
The injection hole is through the surface of first module, the second module or third module.
On the basis of any of the above-described technical solution, further, the inner surface in the insertion hole and inserting for osteotomy remains
Enter body fit, to prevent bone cement from removing from inserting in the hole.
On the basis of any of the above-described technical solution, further, first module, the second module and third module
The lug boss and recessed portion that can be mutually inserted are additionally provided on involutory surface.
On the basis of any of the above-described technical solution, further, pulp cavity is formed in the osteotomy remains, in the pulp cavity
It is placed with pulp cavity plug；
Described supporting element one end resists pulp cavity plug, and the other end protrudes into the cavity that the second binding face surrounds.
On the basis of any of the above-described technical solution, further, the supporting element is close to the flat of the bone cement prosthese
Face setting.
On the basis of any of the above-described technical solution, further, the mold is formed using 3D printing method.
On the basis of any of the above-described technical solution, further, the supporting element uses metal support stick.
Bone cement prosthese integration 3D printing molding die provided by the utility model has the advantage that as follows:
Using bone cement prosthese integration 3D printing molding die provided by the utility model, including multiple modules and support
Part；It is successively detachably connected to form mold between the involutory surface of multiple modules, the inner face of the mold includes being integrally formed
The first binding face and the second binding face, the injection hole for injecting bone cement is provided in one of them described module；It is described
It is adapted in mold described in osteotomy remains partial insertion and with first binding face, it is residual that osteotomy is fixed in the supporting element part
In the bones of the body and Medullary fixation section is formed, another part is located in the second binding face and forms bone cement prosthese, the Medullary fixation section
It is integrally formed with bone cement prosthese by pouring bone cement；The technical program is used, in application, being spliced into multiple modules for mould
Tool, osteotomy remains are partially submerged into mold, then supporting element part are fixed in osteotomy remains, another part is placed in mould
Have in the cavity that internal second binding face is formed, by injecting bone cement in injection hole, flows into inside osteotomy remains naturally simultaneously
Mould inside is filled, is formed after hardening, without previous bone cement prosthese and Medullary fixation section two parts, the two is integrally formed,
It avoids two parts and connects existing gap, eliminate mechanics weakness, greatly improve the mechanical property of bone cement prosthese.
The second of the utility model is designed to provide a kind of bone cement prosthese integration 3D printing molding machine, with very big
Solving bone cement junction in degree, there may be gaps, and there are mechanics weakness, the later period is easily broken off, the skill of operative failure
Art problem.
A kind of bone cement prosthese integration 3D printing molding machine provided by the utility model, it is false including the bone cement
Body integration 3D printing molding die.
Bone cement prosthese integration 3D printing molding machine provided by the utility model has the advantage that as follows:
Due to bone cement prosthese integration 3D printing molding machine provided by the utility model, including including the bone water
Mud prosthese integration 3D printing molding die, therefore whole skills with above-mentioned bone cement prosthese integration 3D printing molding die
Art effect, details are not described herein.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of bone cement prosthetic part in the prior art；
Fig. 2 is that the external structure of bone cement prosthese integration 3D printing molding die provided by the embodiment of the utility model is shown
It is intended to；
Fig. 3 is the bone cement prosthese integration 3D printing molding die provided by the embodiment of the utility model based on Fig. 2
Cross-sectional view；
Fig. 4 is the bone cement prosthese integration 3D printing molding die provided by the embodiment of the utility model based on Fig. 2
The structural schematic diagram of mold；
Fig. 5 is the mould of the cement prosthese integration 3D printing shaping mold provided by the embodiment of the utility model based on Fig. 4
The cross-sectional view of tool.
Drawing reference numeral:
1- bone cement prosthetic part；
100- mold；The first module of 110-；The second module of 120-；130- third module；The first binding face of 140-；150-
Second binding face；160- injection hole；170- is inserted into hole；180- pulp cavity；181- pulp cavity plug；
200- supporting element；
300- osteotomy remains；310- osteotomy stump；320- osteotomy stump nested parts；
410- bone cement prosthese；420- Medullary fixation section.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is on or below second feature
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Right above two features and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in the second spy
Under sign, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature level
Height is less than second feature.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Embodiment one
As shown in Figures 2 to 5, bone cement prosthese integration 3D printing molding die 100 provided in this embodiment, including it is more
A module and supporting element 200；It is successively detachably connected to form mold 100 between the involutory surface of multiple modules, the mold
100 inner face includes integrally formed first binding face 140 and the second binding face 150, is provided in one of them described module
For injecting the injection hole 160 of bone cement；It is pasted in mold 100 described in 300 partial insertion of osteotomy remains and with described first
Conjunction face 140 is adapted, and 200 part of supporting element is fixed in osteotomy remains 300 and forms Medullary fixation section 420, another portion
For quartile in the second binding face 150 and forming bone cement prosthese 410, the Medullary fixation section 420 and bone cement prosthese 410 are logical
It crosses and pours bone cement integrated molding；The technical program is used, in application, multiple modules are spliced into as mold 100, osteotomy is residual
The bones of the body 300 are partially submerged into mold 100, then 200 part of supporting element are fixed in osteotomy remains 300, another part is placed in
In the cavity that 100 the second binding face 150 of inside of mold is formed, by injecting bone cement in injection hole 160, osteotomy is flowed into naturally
300 inside of remains simultaneously fills inside mold 100, forms after hardening, without previous bone cement prosthese 410 and Medullary fixation section 420
The two is integrally formed by two parts, is avoided two parts and is connected existing gap, eliminates mechanics weakness, greatly improve bone water
The mechanical property of mud prosthese 410.
Specifically, below for each of the bone cement prosthese integration 3D printing molding die 100 provided in the present embodiment
A specific structure elaborates:
Specifically, supporting element 200 uses metal support stick.
It should be pointed out that supporting element 200 can also use other hard materials, play a supporting role, herein
It repeats no more.
In the optinal plan of the present embodiment, which is formed using 3D printing type, is adopted
Use nylon (PA3300) as printing raw material, nylon (PA3300) can be used high-temperature sterilization, be unlikely to deform, is able to carry out
Clinical use, safely and effectively.
In the optinal plan of the present embodiment, bone wax is coated on the involutory surface of multiple modules, with mutual fastening formation
Mold 100.
In one of embodiment of the present embodiment, please continue to refer to shown in Fig. 5, including three modules, three modules
Respectively the first module 110, the second module 120 and third module 130；First module 110, the second module 120 and third
Successively fastening forms rectangular configuration between the involutory surface of module 130, and one of surface of the rectangular configuration bottom is reserved
For being inserted into the insertion hole 170 of osteotomy remains 300；The injection hole 160 is through first module 110, the second module
120 or third module 130 surface.
Specifically, the inner surface in insertion hole 170 is adapted with the insertion portion of osteotomy remains 300, effect is can to prevent
Bone cement is removed from inserting in the hole.
In the optinal plan of the present embodiment, the involutory surface of first module 110, the second module 120 and third module 130
On be additionally provided with the lug boss and recessed portion that can be mutually inserted, to reinforce bonding strength.
In the optinal plan of the present embodiment, pulp cavity 180 is formed in the osteotomy remains 300, is placed in the pulp cavity 180
Pulp cavity plug 181；Described 200 one end of supporting element resists pulp cavity plug 181, and the other end protrudes into the cavity that the second binding face 150 surrounds
It is interior.
In the optinal plan of the present embodiment, the osteotomy remains 300 include osteotomy stump 310 and osteotomy stump nesting part
Divide 320；The osteotomy stump 310 is located at outside the mold 100, the osteotomy stump nested parts 320 and first patch
Conjunction face 140 is adapted.
The present embodiment also provides a kind of bone cement prosthese integration 3D printing molding machine, including the bone cement prosthese
Integrated 3D printing molding die, therefore whole technologies with above-mentioned bone cement prosthese integration 3D printing molding die are imitated
Fruit, details are not described herein.
Embodiment two
On the basis of example 1, a kind of bone cement prosthese integration 3D printing shaping mould that the present embodiment also provides
The forming method of tool, includes the following steps:
Step 1: merging pulp cavity plug 181 and supporting element 200: placing pulp cavity in the pulp cavity 180 of 310 distal end of osteotomy stump
Plug 181 places supporting element 200 in pulp cavity plug 181；
Step 2: assembly mold 100: spreading bone wax in the inner face of mold 100 and the involutory surface of each module, mutually detain
Tightly, it is combined into full die 100.
Step 3: mold 100 and osteotomy remains 300 assemble: the mold 100 being nested in 300 outside of osteotomy remains and is adjusted
The whole matching position to mold and osteotomy remains；
Step 4: bone cement forms: injecting bone cement from the injection hole 160 of the mold 100, stand 10 minutes, bone water
Mud hardening；
Step 5: taking out bone cement: breaking multiple modules into two with one's hands, coarse part and check bone cement prosthese 410 between repair module
Whether stable, operation terminates.
Specifically, in step 1, the length of the position of pulp cavity plug 181 and supporting element 200 according to preoperative setting data into
Row adjustment.
Specifically, in step 2, the length of supporting element 200 is close to 410 plane of bone cement prosthese.
Specifically, the nested depth of the mold 100 is adjusted according to the data of preoperative setting in step 3, it is inserted into
To stopping when stablizing, the as depth of nesting；The matching position of the osteotomy remains 300 is adjusted according to the data of preoperative setting
Whole, stopping when capable of being embedded in, angle when insertion is to rotate angle.
Specifically, when injecting bone cement, clutching mold 100 in step 4, prevent bone cement from overflowing from intermodule.
The bone cement prosthese integration 3D printing molding die of the present embodiment is illustrated above, still, this implementation
Example is not limited to above-mentioned specific embodiment, without departing from the scope of the claims, can carry out various deformations
Or change.The various modifications and change that the present embodiment is included within the scope of the claims.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of bone cement prosthese integration 3D printing molding die characterized by comprising multiple modules and supporting element；
It is successively detachably connected to form mold between the involutory surface of multiple modules, the inner face of the mold includes being integrally formed
The first binding face and the second binding face, the injection hole for injecting bone cement is provided in one of them described module；
It is adapted in mold described in osteotomy remains partial insertion and with first binding face, the supporting element part, which is fixed on, to be cut
In bone remains and Medullary fixation section is formed, another part is located in the second binding face and is formed bone cement prosthese, consolidates in the marrow
Determine section and bone cement prosthese and is integrally formed by pouring bone cement.
2. bone cement prosthese integration 3D printing molding die according to claim 1, which is characterized in that multiple moulds
It is coated with bone wax on the involutory surface of block, mold is formed with mutual fastening.
3. bone cement prosthese integration 3D printing molding die according to claim 1 or 2, which is characterized in that including three
A module, three modules are respectively the first module, the second module and third module；
Successively fastening forms rectangular configuration, and the square between first module, the second module and the involutory surface of third module
One of surface of shape structural base remains for the insertion hole for being inserted into osteotomy remains in advance；
The injection hole is through the surface of first module, the second module or third module.
4. bone cement prosthese integration 3D printing molding die according to claim 3, which is characterized in that the insertion hole
Inner surface be adapted with the insertion portion of osteotomy remains, with prevent bone cement from insert in the hole remove.
5. bone cement prosthese integration 3D printing molding die according to claim 3, which is characterized in that first mould
The lug boss and recessed portion that can be mutually inserted are additionally provided on the involutory surface of block, the second module and third module.
6. bone cement prosthese integration 3D printing molding die according to claim 1, which is characterized in that the osteotomy is residual
Pulp cavity is formed in the bones of the body, is placed with pulp cavity plug in the pulp cavity；
Described supporting element one end resists pulp cavity plug, and the other end protrudes into the cavity that the second binding face surrounds.
7. bone cement prosthese integration 3D printing molding die according to claim 1, which is characterized in that the supporting element
Plane close to the bone cement prosthese is arranged.
8. bone cement prosthese integration 3D printing molding die according to claim 1, which is characterized in that the mold is adopted
It is formed with 3D printing method.
9. bone cement prosthese integration 3D printing molding die according to claim 1 or claim 7, which is characterized in that the branch
Support member uses metal support stick.
10. a kind of bone cement prosthese integration 3D printing molding machine, which is characterized in that including any one of claim 1-9 institute
The bone cement prosthese integration 3D printing molding die stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821242094.3U CN209422088U (en) | 2018-08-02 | 2018-08-02 | Bone cement prosthese integration 3D printing molding die and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821242094.3U CN209422088U (en) | 2018-08-02 | 2018-08-02 | Bone cement prosthese integration 3D printing molding die and device |
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| Publication Number | Publication Date |
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| CN209422088U true CN209422088U (en) | 2019-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171939A (en) * | 2018-08-02 | 2019-01-11 | 重庆市华港科技有限公司 | Bone cement prosthese integration 3D printing molding die and its forming method |
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2018
- 2018-08-02 CN CN201821242094.3U patent/CN209422088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171939A (en) * | 2018-08-02 | 2019-01-11 | 重庆市华港科技有限公司 | Bone cement prosthese integration 3D printing molding die and its forming method |
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Effective date of registration: 20210909 Address after: No. 83, Xinqiao Main Street, Shapingba District, Chongqing, 400037 Patentee after: THE SECOND AFFILIATED HOSPITAL OF PLA ARMY MEDICAL University Patentee after: CHONGQING HUAGANG TECHNOLOGY Co.,Ltd. Address before: 400000 floors 1-2, building 4, Liangjiang times, Huaxiong, Jiangbei District, Chongqing Patentee before: CHONGQING HUAGANG TECHNOLOGY Co.,Ltd. |
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