CN113693698A - 3D prints osseointegration screw - Google Patents
3D prints osseointegration screw Download PDFInfo
- Publication number
- CN113693698A CN113693698A CN202110819115.3A CN202110819115A CN113693698A CN 113693698 A CN113693698 A CN 113693698A CN 202110819115 A CN202110819115 A CN 202110819115A CN 113693698 A CN113693698 A CN 113693698A
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- CN
- China
- Prior art keywords
- screw
- osseointegration
- grid body
- tail end
- printed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010883 osseointegration Methods 0.000 title claims abstract description 60
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 32
- 238000010146 3D printing Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000002513 implantation Methods 0.000 description 5
- 108010048734 sclerotin Proteins 0.000 description 5
- 210000003041 ligament Anatomy 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- HRZMCMIZSOGQJT-UHFFFAOYSA-N [Zn].[Mn].[Mg] Chemical compound [Zn].[Mn].[Mg] HRZMCMIZSOGQJT-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003275 diaphysis Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/866—Material or manufacture
Abstract
The utility model belongs to the technical field of medical instrument's technique and specifically relates to a 3D prints osseointegration screw is related to, and it includes skeleton and the grid body, the skeleton package is in the grid body outside, the grid body is three-dimensional space porous structure through 3D printing. The application has the effect of improving the structural strength between the osseointegration screw and the bone body.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a 3D printing osseointegration screw.
Background
The osseointegration screw is also called interface screw or interface nail, and is mainly used for fixing tendon or ligament bone blocks to implants of femur and tibia bone paths, fixing soft tissues, connecting and reconstructing femur and the like in the ligament reconstruction process.
The current prior art osseointegration screw refers to a metal interface screw for ligament fixation disclosed in publication No. CN210697717U, which is generally conical, covered by threads on the surface, provided with a guide hole inside for passing a positioning instrument, and provided with an internal hexagonal slot at the tail for cooperating with a power tool or instrument.
Although the structural design of the metal interface screw for ligament fixation can play a role in fixation, in a long term, bone cannot grow into the osseointegration screw, and the increase of later motion amount may cause falling off, so that the pain of a patient is increased.
Disclosure of Invention
To improve the structural strength between the osseointegration screw and the shaft, the present application provides a 3D printed osseointegration screw.
The application provides a 3D prints bone integration screw adopts following technical scheme:
3D prints osseointegration screw, including skeleton and the net body, the skeleton package is in the net body outside, the net body is three-dimensional space porous structure through 3D printing.
By adopting the technical scheme, after the osseointegration screw is implanted into the bone body, the bone can grow into the osseointegration screw and enter the holes of the grid body.
Preferably, the osseointegration screw further comprises a head end and a tail end which are fixedly connected together, the mesh body is attached to the outer portions of the head end and the tail end, positioning holes are formed in the head end and the tail end respectively, the two positioning holes are coaxially arranged, and a countersunk groove which is coaxially arranged with the positioning holes is formed in the surface, deviating from the head end, of the tail end.
Through adopting above-mentioned technical scheme, can regard as the carrier that holds of the net body after head end and tail end are fixed together to play the supporting role to the overall structure of the net body, the positioning instrument when the locating hole is used for the operation passes and fixes a position and fix bone integration screw wholly, countersunk head groove then makes things convenient for the implantation of bone integration screw with the cooperation of operation instrument.
Preferably, the osseointegration screw further comprises a head end and a tail end fixedly connected to two ends of the grid body, wherein the grid body, the head end and the tail end are coaxially provided with positioning holes, the positioning holes are coaxially arranged, the tail end is away from one side of the grid body, and is provided with a countersunk groove, and the countersunk groove and the positioning holes are coaxially arranged.
Through adopting above-mentioned technical scheme, head end and tail end rigid coupling respectively can make the overall structure of osseointegration screw lighter weight more at the both ends of grid body, and more spaces of grid body have been given to osseointegration screw's inside simultaneously to can do benefit to the sclerotin and fully grow into the grid body, then further improve the structural strength between diaphysis and the interface.
Preferably, the skeleton is helical.
By adopting the technical scheme, the spiral framework is better for stress conduction and dispersion.
Preferably, the skeleton is arranged in a conical manner from the tail end to the head end.
By adopting the technical scheme, the conical framework is better beneficial to the implantation of the integrated bone body of the osseointegration screw.
Preferably, a reinforcing body is fixedly connected between adjacent spiral parts of the framework.
Through adopting above-mentioned technical scheme, the reinforcement can increase the axial stress deformability of skeleton, then protects the stress that the mesh body axial received to improve the holistic structural strength of osseointegration screw.
Preferably, the reinforcing body is concavely arranged towards the grid body in an arc shape.
Through adopting above-mentioned technical scheme, the reinforcement adopts the arc structure can play the effect of buffering to the skeleton when the skeleton receives axial stress, and simultaneously behind osseointegration screw is grown into to sclerotin, the curved reinforcement can further increase sclerotin and the axial contact stress of osseointegration screw.
Preferably, the edge parts of the framework are rounded.
By adopting the technical scheme, the edge of the framework is provided with the fillet, so that when the osseointegration screw is implanted into the bone body, the friction between the framework and the bone is reduced, and the pain to a patient is relieved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the osseointegration screw is implanted into the bone body, the bone can grow into the osseointegration screw and enter the holes of the grid body, and compared with the traditional osseointegration screw, after the osseointegration screw is utilized, the structural strength between the bone body and the osseointegration screw can be improved by combining the bone and the porous structure of the grid body;
2. the head end and the tail end can be used as a bearing piece of the grid body after being fixed together so as to support the integral structure of the grid body, the positioning hole is used for a positioning instrument to pass through during operation and positioning and fixing the integral osseointegration screw, and the countersunk head groove is matched with an operation tool so as to facilitate the implantation of the osseointegration screw;
3. the head end and the tail end are respectively and fixedly connected to the two ends of the grid body, so that the overall structure of the osseointegration screw is lighter, and meanwhile, more space is provided for the grid body inside the osseointegration screw, thereby being beneficial to the bone to fully grow into the grid body, and further improving the structural strength between the bone body and the interface;
4. the reinforcement body can increase the axial stress deformability of the framework, so that the axial stress of the grid body is protected, and the integral structural strength of the osseointegration screw is improved.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present application.
Fig. 2 is a schematic plan view of the rear end of the embodiment of the present application.
Description of reference numerals: 1. a framework; 11. a reinforcement body; 2. a mesh body; 3. a head end; 4. a tail end; 41. a countersunk groove; 5. and (7) positioning the holes.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
Example 1
The embodiment of the application discloses 3D prints osseointegration screw, refers to fig. 1, and it includes skeleton 1, mesh body 2, head end 3 and tail end 4.
Referring to fig. 1, the frame 1 serves as a main body of the bone integration screw and plays a role of strength support, the frame 1 may be made of an alloy material such as titanium alloy, zinc-manganese-magnesium alloy, etc., or a PEEK material having excellent properties such as high temperature resistance, self-lubrication, easy processing, and high mechanical strength. The framework 1 is of a spiral structure and has a taper along the axial direction, the spiral framework 1 is better for stress conduction and dispersion, and meanwhile, the framework 1 with the taper is better beneficial to the implantation of the integral bone body of the osseointegration screw; the edge of the framework 1 is rounded so as to reduce the friction between the framework 1 and the sclerotin and bring pain to the patient when the osseointegration screw is implanted into the sclerotin.
The grid body 2 is made in a 3D printing mode, the grid body is wrapped by the framework 1 and fixedly connected with the framework 1, the grid body 2 is of a porous structure in a three-dimensional space, the shape and the size of each hole are irregular, the structure of the grid body 2 is more beneficial to bone ingrowth into the osseointegration screw, meanwhile, the porous structure of the grid body 2 is more irregular, the structural strength of the bone ingrowth into the osseointegration screw is higher, and the capability of resisting the stress from multi-direction angles is higher.
Referring to fig. 1 and 2, head end 3 and tail end 4 are round platform form, and head end 3 and the coaxial rigid coupling of tail end 4 and the global tapering of both are the same with the tapering of skeleton 1, and the net body 2 package is on head end 3 and tail end 4, and locating hole 5 has all been seted up along the axial to head end 3 and tail end 4, and two locating holes 5 are coaxial and are linked together to the positioning instrument when supplying the operation passes and fixes a position and fix bone integration screw is whole.
The countersunk head groove 41 is formed in the surface, deviating from the head end 3, of the tail end 4, the countersunk head groove 41 is in a regular hexagon shape and is coaxially arranged with the positioning hole 5, and the countersunk head groove 41 is matched with an operation tool to facilitate the implantation of the osseointegration screw.
Referring to fig. 1 and 2, in order to improve the overall structural strength of the osseointegration screw, there may be further provided: the rigid coupling has the reinforcing body 11 between the adjacent spiral position of skeleton 1, and the reinforcing body 11 is platelike structure, and it has four all to follow the rigid coupling of circumference interval between every adjacent spiral position of skeleton 1, and the reinforcing body 11 can increase the 1 axial stress deformability of skeleton, protects the 2 axial stress that receive of grid body then to improve the holistic structural strength of osseointegration screw.
Referring to fig. 1, the reinforcement body 11 is concavely arranged in an arc shape towards the grid body 2, when the framework 1 is subjected to axial stress, the reinforcement body 11 adopts an arc-shaped structure to buffer the framework 1, and after the bone grows into the osseointegration screw, the arc-shaped reinforcement body 11 can further increase the axial contact stress between the bone and the osseointegration screw.
The implementation principle that this application embodiment 3D printed osseointegration screw does: when in use, the osseointegration screw is implanted into a patient's bone, and then the osseointegration screw is fixed by a positioning instrument passing through the positioning hole 5.
By adopting the embodiment, after the osseointegration screw is implanted into the bone body, the bone can grow into the osseointegration screw and enter the holes of the grid body 2, and the structural strength between the bone body and the osseointegration screw can be improved by combining the bone and the porous structure of the grid body 2.
Example 2
The difference between this embodiment and embodiment 1 lies in the installation positions of the head end 3 and the tail end 4, the head end 3 and the tail end 4 in this embodiment are respectively and coaxially and fixedly connected to the two ends of the grid body 2, the framework 1 is sleeved on the head end 3, the tail end 4 and the outside of the grid body 2, one positioning hole 5 is axially formed in each of the head end 3, the tail end 4 and the grid body 2, and the three positioning holes 5 are communicated with each other.
Compared with the structure of the osseointegration screw in the embodiment 1, the structure of the osseointegration screw is lighter in overall structure, and meanwhile, more space is provided for the grid body 2 inside the osseointegration screw, so that bone can grow into the grid body 2 fully, and the structural strength between the bone body and the interface is further improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1.3D prints osseointegration screw, its characterized in that: including skeleton (1) and grid body (2), skeleton (1) package is attached at grid body (2) outsidely, grid body (2) are three-dimensional space porous structure through 3D printing.
2. The 3D printed osseointegration screw of claim 1, wherein: the osseointegration screw further comprises a head end (3) and a tail end (4) which are fixedly connected together, the grid body (2) is wrapped and attached to the outer portion of the head end (3) and the outer portion of the tail end (4), positioning holes (5) and two are respectively formed in the head end (3) and the tail end (4), the positioning holes (5) are coaxially arranged, and a countersunk groove (41) which is coaxially arranged with the positioning holes (5) is formed in one side, deviating from the head end (3), of the tail end (4).
3. The 3D printed osseointegration screw of claim 1, wherein: bone integration screw still includes head end (3) and tail end (4) of rigid coupling at grid body (2) both ends, equal coaxial locating hole (5), three have been seted up on grid body (2), head end (3) and tail end (4) locating hole (5) coaxial setting, countersunk head groove (41) have been seted up to tail end (4) one side of leaving grid body (2), countersunk head groove (41) with locating hole (5) coaxial setting.
4. The 3D printed osseointegration screw of claim 1, wherein: the framework (1) is spiral.
5. The 3D printed osseointegration screw of claim 1, wherein: the framework (1) is arranged in a conical shape.
6. The 3D printed osseointegration screw of claim 4, wherein: and a reinforcing body (11) is fixedly connected between adjacent spiral parts of the framework (1).
7. The 3D printed osseointegration screw of claim 6, wherein: the reinforcing body (11) is arranged in an arc shape towards the inner recess of the grid body (2).
8. The 3D printed osseointegration screw of claim 1, wherein: the edge parts of the framework (1) are rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110819115.3A CN113693698A (en) | 2021-07-20 | 2021-07-20 | 3D prints osseointegration screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110819115.3A CN113693698A (en) | 2021-07-20 | 2021-07-20 | 3D prints osseointegration screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113693698A true CN113693698A (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110819115.3A Pending CN113693698A (en) | 2021-07-20 | 2021-07-20 | 3D prints osseointegration screw |
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| CN (1) | CN113693698A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004236767A (en) * | 2003-02-04 | 2004-08-26 | Homuzu Giken:Kk | Screw for osteotomy, screw set for osteotomy, and method for rotating operating |
| US20090198288A1 (en) * | 2008-01-31 | 2009-08-06 | Cayenne Medical, Inc. | Self-tapping biocompatible interference bone screw |
| CN104414726A (en) * | 2013-09-05 | 2015-03-18 | 比德尔曼技术有限责任两合公司 | Bone anchor and bone anchor assembly comprising the same |
| CN104665913A (en) * | 2013-11-26 | 2015-06-03 | 财团法人工业技术研究院 | Bionic fixing device and pulling-out device thereof |
| US20160157908A1 (en) * | 2014-07-24 | 2016-06-09 | Renovis Surgical Technologies, Inc. | Bone screw incorporating a porous surface formed by an additive manufacturing process |
| CN210697717U (en) * | 2019-04-26 | 2020-06-09 | 常州华众生物科技有限公司 | Metal interface screw for fixing ligament |
| CN112074246A (en) * | 2018-05-09 | 2020-12-11 | 华沙整形外科股份有限公司 | Bone screw and method for manufacturing same |
| CN112087975A (en) * | 2018-05-09 | 2020-12-15 | 华沙整形外科股份有限公司 | Bone screw and method for manufacturing same |
-
2021
- 2021-07-20 CN CN202110819115.3A patent/CN113693698A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004236767A (en) * | 2003-02-04 | 2004-08-26 | Homuzu Giken:Kk | Screw for osteotomy, screw set for osteotomy, and method for rotating operating |
| US20090198288A1 (en) * | 2008-01-31 | 2009-08-06 | Cayenne Medical, Inc. | Self-tapping biocompatible interference bone screw |
| CN104414726A (en) * | 2013-09-05 | 2015-03-18 | 比德尔曼技术有限责任两合公司 | Bone anchor and bone anchor assembly comprising the same |
| CN104665913A (en) * | 2013-11-26 | 2015-06-03 | 财团法人工业技术研究院 | Bionic fixing device and pulling-out device thereof |
| US20160157908A1 (en) * | 2014-07-24 | 2016-06-09 | Renovis Surgical Technologies, Inc. | Bone screw incorporating a porous surface formed by an additive manufacturing process |
| CN112074246A (en) * | 2018-05-09 | 2020-12-11 | 华沙整形外科股份有限公司 | Bone screw and method for manufacturing same |
| CN112087975A (en) * | 2018-05-09 | 2020-12-15 | 华沙整形外科股份有限公司 | Bone screw and method for manufacturing same |
| CN210697717U (en) * | 2019-04-26 | 2020-06-09 | 常州华众生物科技有限公司 | Metal interface screw for fixing ligament |
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Application publication date: 20211126 |
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