CN110811933A - Titanium alloy bone defect support based on 3D printing technology - Google Patents
Titanium alloy bone defect support based on 3D printing technology Download PDFInfo
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- CN110811933A CN110811933A CN201911270008.9A CN201911270008A CN110811933A CN 110811933 A CN110811933 A CN 110811933A CN 201911270008 A CN201911270008 A CN 201911270008A CN 110811933 A CN110811933 A CN 110811933A
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- support
- titanium alloy
- bone
- fixing
- printing technology
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2/2846—Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Manufacturing & Machinery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Materials Engineering (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a titanium alloy bone defect support based on a 3D printing technology, which comprises a bone support and a fixing support matched with the bone support for use, wherein the bone support is a net type cylindrical bone support, and two ends of the fixing support are respectively provided with an external fixing component. According to the bone scaffold, the fixing support for auxiliary fixation is arranged on one side of the bone scaffold, the fixing support is fixed with the fixing support through the connecting rod and the semicircular clamping ring, the external fixing assemblies are respectively arranged at two ends of the fixing support, the fixing support can be fixed through the external fixing assemblies, and therefore the bone scaffold is fixed through the fixing support.
Description
Technical Field
The invention belongs to the technical field of titanium alloy bone defect supports, and particularly relates to a titanium alloy bone defect support based on a 3D printing technology.
Background
The treatment of bone defect is one of the medical difficult problems, the development in the field of tissue engineering brings new hope for constructing a safe and effective bone tissue transplantation substitute, especially 3D printing technology, can design individualized titanium alloy bone defect support according to defect position and shape, and leads the growth and repair of bone tissue through the titanium alloy bone defect support.
However, in the prior art, both ends of the titanium alloy bone defect scaffold are fixed on the fracture surface of the bone defect through the hollow cannula, and the titanium alloy bone defect scaffold is not fixed in the transverse direction, so that the titanium alloy bone defect scaffold is easy to have slight sideslip, and the titanium alloy bone defect scaffold is easy to damage new bone tissues and cause the new bone tissues to be inclined.
Therefore, the titanium alloy bone defect support based on the 3D printing technology is provided to solve the problems in the prior art, so that the support is firmly fixed, and the titanium alloy bone defect support is prevented from sideslipping to a certain extent.
Disclosure of Invention
The invention aims to provide a titanium alloy bone defect support based on a 3D printing technology, and aims to solve the problem that the titanium alloy bone defect support in the prior art is easy to slightly sideslip.
In order to achieve the purpose, the invention adopts the following technical scheme:
a titanium alloy bone defect support based on a 3D printing technology comprises a bone support and a fixing support matched with the bone support for use, wherein the bone support is a net type cylindrical bone support, and two ends of the fixing support are respectively provided with an external fixing component;
the fixing support comprises a main rod, two groups of connecting rods and semicircular clamping rings, the connecting rods are sleeved on the outer wall of the main rod in a sliding mode through hollow sleeves, the connecting rods are Y-shaped connecting rods, the semicircular clamping rings are symmetrically arranged in two groups, the two groups of semicircular clamping rings are fixedly installed at the branched ends of the connecting rods respectively, first bolts used for locking and fixing the two groups of semicircular clamping rings are arranged on the side wall of the connecting rod, and the external fixing assemblies are arranged at the two ends of the main rod respectively;
the bone support comprises a first cylindrical support and a second cylindrical support, the first cylindrical support is fixedly arranged inside the second cylindrical support through a fixing column, two ends of the first cylindrical support extend to the outside of the second cylindrical support, and two ends of the first cylindrical support are respectively clamped and fixed inside the semicircular clamping ring;
the external fixed subassembly includes fixed block and clamp, the spliced eye has been seted up on the lateral wall of fixed block, be provided with the spring pearl on the inner wall of spliced eye, the clamp is established to two sets of half disc articulated formula clamps, and one side fixedly connected with splicing block of clamp, seted up the circular arc recess on splicing block's the lateral wall, and spring pearl joint in the inside of circular arc recess.
Preferably, a first counter bore and a first threaded blind hole are correspondingly formed in the connecting rod, and one end of the first bolt penetrates through the first counter bore and is in threaded connection with the inside of the first threaded blind hole.
Preferably, a second countersunk hole is formed in the side wall of the hollow sleeve, a second bolt is arranged in the second countersunk hole, a linear and equidistant second threaded blind hole is formed in the side wall of the main rod, and one end of the second bolt penetrates through the second countersunk hole and is in threaded connection with the inside of the second threaded blind hole.
Preferably, the spring ball includes steel ball, sliding block, compression spring and baffle, the steel ball laminating is in one side of sliding block, one side fixed connection in compression spring's one end of sliding block, the baffle is provided with two sets ofly, sliding block and compression spring all are located between two sets of baffles.
Preferably, mobile jib and fixed block set up to titanium alloy body structure, mobile jib and fixed block all print the preparation through 3D and form, the fixed block corner all sets up to the arc angle.
Preferably, a gasket is fixedly bonded on the inner wall of the clamp, and the gasket is a silica gel gasket.
Preferably, two groups of spring beads are arranged inside the inserting hole and are symmetrically arranged.
Preferably, the outer wall of the main rod is provided with a limiting block, the limiting block is located at the middle position of the main rod, and the limiting block and the main rod are arranged into an integral structure.
Preferably, the bone scaffold is of an integral titanium alloy structure and is manufactured through 3D printing.
The invention has the technical effects and advantages that: compared with the prior art, the titanium alloy bone defect support based on the 3D printing technology provided by the invention has the following advantages:
1. according to the bone fixing device, the fixing support for auxiliary fixing is arranged on one side of the bone support, the hollow sleeve is sleeved on the outer wall of the main rod of the fixing support, the fixing support is fixed with the fixing support through the connecting rod and the semicircular clamping ring, the external fixing assemblies are respectively arranged at two ends of the fixing support, the fixing support can be fixed through the external fixing assemblies, and therefore the bone support is fixed through the fixing support.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view taken at A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of a connecting rod structure of the present invention;
FIG. 4 is a schematic view of a bone scaffold structure of the present invention;
FIG. 5 is a schematic view of a fixing block according to the present invention;
FIG. 6 is a schematic diagram of the spring bead structure of the present invention;
fig. 7 is a schematic view of the structure of the clamp of the present invention.
In the figure: 1. a bone scaffold; 2. fixing a bracket; 3. an extracorporeal fixation assembly; 4. a main rod; 5. a connecting rod; 6. a semicircular snap ring; 7. a hollow sleeve; 8. a first bolt; 9. a first cylindrical support; 10. a second cylindrical support; 11. fixing a column; 12. a fixed block; 13. clamping a hoop; 14. inserting holes; 15. a spring bead; 16. an insertion block; 17. a circular arc groove; 18. a first counterbore; 19. a first threaded blind hole; 20. a second counterbore; 21. a second bolt; 22. a second threaded blind hole; 23. steel balls; 24. a slider; 25. a compression spring; 26. a baffle plate; 27. a gasket; 28. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a titanium alloy bone defect support based on a 3D printing technology, which comprises a bone support 1 and a fixing support 2 matched with the bone support 1 for use, wherein the bone support 1 is set to be a net type cylindrical bone support 1, two ends of the fixing support 2 are respectively provided with an external fixing component 3, the bone support 1 is set to be an integral titanium alloy structure, and the bone support 1 is manufactured by 3D printing;
the fixed support 2 comprises a main rod 4, connecting rods 5 and semicircular clamping rings 6, the connecting rods 5 are slidably sleeved on the outer wall of the main rod 4 through hollow sleeves 7, the connecting rods 5 are Y-shaped connecting rods, two groups of semicircular clamping rings 6 are symmetrically arranged, the two groups of semicircular clamping rings 6 are respectively fixedly provided with the forked ends of the connecting rods 5, the side wall of each connecting rod 5 is provided with a first bolt 8 for locking and fixing the two groups of semicircular clamping rings 6, external fixing components 3 are respectively arranged at two ends of the main rod 4, the connecting rods 5 are correspondingly provided with a first countersunk hole 18 and a first threaded blind hole 19, one end of each first bolt 8 penetrates through the first countersunk hole 18 and is in threaded connection with the first threaded blind hole 19, the side wall of the hollow sleeve 7 is provided with a second countersunk hole 20, the inside of the second countersunk hole 20 is provided with a second bolt 21, the side wall of the main rod 4 is provided with linear and equidistant second threaded blind holes, one end of a second bolt 21 penetrates through the second counter bore 20 and is in threaded connection with the inside of the second threaded blind hole 22, the main rod 4 and the fixed block 12 are arranged to be a titanium alloy integrated structure, the main rod 4 and the fixed block 12 are both manufactured through 3D printing, corners of the fixed block 12 are both arranged to be arc corners, a limiting block 28 is arranged on the outer wall of the main rod 4, the limiting block 28 is located in the middle of the main rod 4, and the limiting block 28 and the main rod 4 are arranged to be an integrated structure;
the bone support 1 comprises a first cylindrical support 9 and a second cylindrical support 10, the first cylindrical support 9 is fixedly arranged inside the second cylindrical support 10 through a fixing column 11, two ends of the first cylindrical support 9 extend to the outside of the second cylindrical support 10, and two ends of the first cylindrical support 9 are respectively clamped and fixed inside the semicircular clamping ring 6;
the external fixing component 3 comprises a fixing block 12 and a clamp 13, wherein the side wall of the fixing block 12 is provided with an inserting hole 14, the inner wall of the inserting hole 14 is provided with a spring bead 15, the spring bead 15 comprises a steel ball 23, a sliding block 24, a compression spring 25 and a baffle 26, the steel ball 23 is attached to one side of the sliding block 24, one side of the sliding block 24 is fixedly connected to one end of the compression spring 25, the baffle 26 is provided with two groups, the sliding block 24 and the compression spring 25 are both positioned between the two groups of baffles 26, the clamp 13 is provided with two groups of semi-circular sheet hinged, and one side of the clamp 13 is fixedly connected with an insertion block 16, the side wall of the insertion block 16 is provided with an arc groove 17, and spring bead 15 joint has gasket 27 in the inside of circular arc recess 17, fixed bonding on the inner wall of clamp 13, and gasket 27 sets up to the silica gel gasket, and the inside of spliced eye 14 is provided with two sets of spring beads 15, and two sets of spring beads 15 symmetry sets up.
The structure principle is as follows: according to the invention, the fixing support 2 for auxiliary fixation is arranged on one side of the bone support 1, the hollow sleeve 7 is sleeved on the outer wall of the main rod 4 of the fixing support 2, the fixing support 2 is fixed with the fixing support 2 through the connecting rod 5 and the semicircular clamping ring 6, the external fixing components 3 are respectively arranged at two ends of the fixing support 2, the fixing support 2 can be fixed through the external fixing components 3, so that the bone support 1 is fixed through the fixing support 2, the bone support 1 is further fixed transversely on the basis that the existing bone support 1 is fixed on the fracture surface of a bone defect through the hollow sleeve 7, slight sideslip of the bone support 1 is ensured to a certain extent, and the situations that the new bone tissue is damaged and the new bone tissue is easily inclined due to the sideslip of the bone support 1 are avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a defective support of titanium alloy bone based on 3D printing technique, includes bone scaffold (1) and with bone scaffold (1) supporting fixed bolster (2) that use, its characterized in that: the bone support (1) is a net type cylindrical bone support (1), and two ends of the fixing support (2) are respectively provided with an external fixing component (3);
the fixing support (2) comprises a main rod (4), connecting rods (5) and semicircular clamping rings (6), the connecting rods (5) are slidably sleeved on the outer wall of the main rod (4) through hollow sleeves (7), the connecting rods (5) are arranged to be Y-shaped connecting rods, the semicircular clamping rings (6) are symmetrically provided with two groups, the two groups of semicircular clamping rings (6) are fixedly provided with the branch ends of the connecting rods (5) respectively, first bolts (8) used for locking and fixing the two groups of semicircular clamping rings (6) are arranged on the side walls of the connecting rods (5), and the external fixing assemblies (3) are arranged at two ends of the main rod (4) respectively;
the bone support (1) comprises a first cylindrical support (9) and a second cylindrical support (10), the first cylindrical support (9) is fixedly installed inside the second cylindrical support (10) through a fixing column (11), two ends of the first cylindrical support (9) extend to the outside of the second cylindrical support (10), and two ends of the first cylindrical support (9) are clamped and fixed inside a semicircular clamping ring (6) respectively;
external fixed subassembly (3) are including fixed block (12) and clamp (13), spliced eye (14) have been seted up on the lateral wall of fixed block (12), be provided with spring pearl (15) on the inner wall of spliced eye (14), clamp (13) are established to two sets of half-round piece articulated formula clamps, and one side fixedly connected with of clamp (13) inserts piece (16), circular arc recess (17) have been seted up on the lateral wall of inserting piece (16), and spring pearl (15) joint in the inside of circular arc recess (17).
2. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: first counter sink (18) and first screw thread blind hole (19) have been seted up to the correspondence on connecting rod (5), the inside of first screw thread blind hole (19) is passed first counter sink (18) threaded connection to one end of first bolt (8).
3. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: second counter sink (20) have been seted up on the lateral wall of hollow sleeve pipe (7), the inside of second counter sink (20) is provided with second bolt (21), be linear equidistant second screw thread blind hole (22) of having seted up on the lateral wall of mobile jib (4), and the one end of second bolt (21) passes second counter sink (20) threaded connection in the inside of second screw thread blind hole (22).
4. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: spring ball (15) include steel ball (23), sliding block (24), compression spring (25) and baffle (26), steel ball (23) are laminated in one side of sliding block (24), one side fixed connection in compression spring (25) of sliding block (24) one end, baffle (26) are provided with two sets ofly, sliding block (24) and compression spring (25) all are located between two sets of baffle (26).
5. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: the titanium alloy steel pole is characterized in that the main pole (4) and the fixed block (12) are of a titanium alloy integrated structure, the main pole (4) and the fixed block (12) are all formed by 3D printing, and the corners of the fixed block (12) are all arranged to be arc corners.
6. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: and a gasket (27) is fixedly bonded on the inner wall of the clamp (13), and the gasket (27) is a silica gel gasket.
7. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: two groups of spring beads (15) are arranged in the insertion hole (14), and the two groups of spring beads (15) are symmetrically arranged.
8. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: the outer wall of the main rod (4) is provided with a limiting block (28), the limiting block (28) is located in the middle of the main rod (4), and the limiting block (28) and the main rod (4) are arranged into an integral structure.
9. The titanium alloy bone defect support based on 3D printing technology according to claim 1, characterized in that: the bone scaffold (1) is of an integrated titanium alloy structure, and the bone scaffold (1) is manufactured through 3D printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911270008.9A CN110811933B (en) | 2019-12-12 | 2019-12-12 | Titanium alloy bone defect support based on 3D printing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911270008.9A CN110811933B (en) | 2019-12-12 | 2019-12-12 | Titanium alloy bone defect support based on 3D printing technology |
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| CN110811933A true CN110811933A (en) | 2020-02-21 |
| CN110811933B CN110811933B (en) | 2021-09-03 |
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| CN110811933B (en) | 2021-09-03 |
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