CN110151364A - A kind of hip prosthesis handle structure and preparation method thereof - Google Patents
A kind of hip prosthesis handle structure and preparation method thereof Download PDFInfo
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- CN110151364A CN110151364A CN201910586710.XA CN201910586710A CN110151364A CN 110151364 A CN110151364 A CN 110151364A CN 201910586710 A CN201910586710 A CN 201910586710A CN 110151364 A CN110151364 A CN 110151364A
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- China
- Prior art keywords
- shank body
- strut
- baltimore groove
- hip prosthesis
- prosthesis handle
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Classifications
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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
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- 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
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
-
- 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
- A61F2/32—Joints for the hip
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
-
- 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
- A61F2002/3097—Designing or manufacturing processes using laser
-
- 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]
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Prostheses (AREA)
Abstract
The present invention provides a kind of hip prosthesis handle structures and preparation method thereof, are related to hip joint technical field.Hip prosthesis handle structure includes shank body and the strut that inclination extends, the bottom of strut is connected with the top sidewall of shank body, the bottom of shank body is in sharp cone distal, a plurality of baltimore groove is provided in shank body, baltimore groove includes the first baltimore groove without strut and the second baltimore groove by strut, and the first baltimore groove extends to bottom end from the top of shank body.The preparation method of hip prosthesis handle structure includes: using 3D printing technique by printing shaping of designed shank body and strut, can also form micro-nano crystal layer in prosthesis handle body structure surface using differential arc oxidization technique after the completion of printing.Obtain compared with low elastic modulus and it is light-weighted under the premise of remain to obtain higher integral strength and structural stability, and good biocompatibility, while saving complicated processing process, reduce the 3D printing hip stem with porous structure of manufacturing cost.
Description
Technical field
The present invention relates to hip joint technical fields, in particular to a kind of hip prosthesis handle structure and its preparation side
Method.
Background technique
Prosthetic replacement has become the ultimate treatment means for the treatment of joint disease, is field of orthopaedics in 21st century
One of the most important progress obtained.Artificial hip joint replacing operation have become treatment hip joint whole Terminal Disease at skilled worker
Section, such as degenerative arthritis, and with the aggravation of aging of population, such patient increases year by year.The people clinically used at present
Work hip prosthesis includes cement reaction type prosthese and none-cement fixed prosthese.Titanium alloy material is low with density, compares
The features such as intensity height, good mechanical property, corrosion-resistant and good biocompatibility, it has been widely used in medical field,
Certain application has also been obtained in artificial implantation, and current clinical use is mostly entity implantation material, not with research
Break deeply and the proof of clinical trial, the elasticity modulus and body bone tissue of titanium alloy entity implantation material are mismatched, be implanted into
After can generate stress collection to true osseous tissue interface and neutralize stress shadowing effect, mechanical compatibility is poor, to plantation success rate and remote
Service life phase has an impact.Moreover, femur is bonded closely with implant surrounding, femur after using the implantation of entity hip stem
The discharge such as blood, air in pulp cavity is difficult.
Summary of the invention
The purpose of the present invention is to provide a kind of hip prosthesis handle structures, it is intended to reduce resistance when implantation, reduce pain
Pain.
Another object of the present invention is to provide a kind of preparation methods of hip prosthesis handle structure, are integrally formed, nothing
Need the processing such as cutting, splicing, the good biocompatibility of structure.
The present invention is implemented as follows:
The present invention provides a kind of hip prosthesis handle structure, including shank body and inclination extend strut, the bottom of strut with
The top sidewall of shank body is connected, and the bottom of shank body is in sharp cone distal, is provided with a plurality of baltimore groove in shank body, a plurality of baltimore groove at least wraps
The first baltimore groove without strut and the second baltimore groove by strut are included, the first baltimore groove is extended to from the top of shank body
Bottom end, the second baltimore groove extend to the bottom end of shank body from strut surface.
Further, in preferred embodiments of the present invention, strut includes handle neck and cervical vertebra oral area interconnected, handle
The bottom of neck is connected with the top sidewall of shank body, and the top of handle neck is connected with cervical vertebra oral area.
Further, in preferred embodiments of the present invention, the second baltimore groove extends to shank body at the top of handle neck
Bottom end.
Further, in preferred embodiments of the present invention, shank body is cylindrical, and the first baltimore groove and the second baltimore groove
It is arc-shaped.
Further, in preferred embodiments of the present invention, strut is cylinder, and the diameter of cervical vertebra oral area is greater than handle neck
The diameter in portion.
Further, in preferred embodiments of the present invention, cervical vertebra oral area is entity structure, and shank body and handle neck are more
Pore structure.
Further, in preferred embodiments of the present invention, the top of shank body is transition connection portion, the bottom of strut and mistake
It crosses interconnecting piece to be connected, and the bottom end of strut and transition connection portion arc-shaped transition.
Further, in preferred embodiments of the present invention, the top of shank body is provided with inner groovy, and the groove body of inner groovy is deep
Degree is 0.2-0.4mm.
Further, in preferred embodiments of the present invention, the surface of hip stem is additionally provided with micro-nano crystal layer,
Micro-nano crystal layer with a thickness of 10-20nm.
The present invention also provides a kind of preparation methods of hip prosthesis handle structure, comprising:
Using 3D printing technique by printing shaping of designed shank body and strut；
Preferably, micro-nano crystal layer is formed in prosthesis handle body structure surface with differential arc oxidization technique after the completion of 3D printing；
Preferably, 3D printing process uses 3D laser melting method；
Preferably, the raw material of prosthese handle structure are titanium alloy.
The beneficial effects of the present invention are: the hip prosthesis handle structure that the present invention obtains by above-mentioned design comprising handle
Body and the strut for being connected to the top side of shank body and tilting upward, the bottom of shank body are in sharp cone distal；It is a plurality of by being arranged in shank body
Baltimore groove extends to bottom end from top, can play the role of reducing resistance in implantation, mitigate the feeling of pain of patient, while
Channel is provided for cell, flowing up and down for blood.
The present invention also provides a kind of preparation methods of hip prosthesis handle structure, use 3D printing one-pass molding, are not necessarily to
The processing such as cut, spliced.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the first viewing angle constructions schematic diagram of the hip prosthesis handle structure that embodiment of the present invention provides；
Fig. 2 is the second viewing angle constructions schematic diagram of the hip prosthesis handle structure that embodiment of the present invention provides；
Fig. 3 is the third viewing angle constructions schematic diagram for the hip prosthesis handle structure that embodiment of the present invention provides；
Fig. 4 is the 4th viewing angle constructions schematic diagram of the hip prosthesis handle structure that embodiment of the present invention provides.
Icon: 100- hip prosthesis handle structure；110- shank body；111- pointed cone portion；112- transition connection portion；113- spill
Slot；The first baltimore groove of 114-；The second baltimore groove of 115-；116- inner groovy；117- curved transition sections；120- strut；121- handle neck
Portion；122- cervical vertebra oral area.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
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 includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Please refer to Fig. 1-Fig. 3, the embodiment of the present invention provides a kind of hip prosthesis handle structure 100, including shank body 110 and inclines
The bottom of the strut 120 tiltedly extended, strut 120 is connected with the top sidewall of shank body 110, and the bottom of shank body 110 is in sharp cone distal, i.e.,
Shank body 110 includes pointed cone portion 111.Overall structure includes polygon bracket, is integral structure, and preparation process is easy and can
Conform better to organization of human body.
Specifically, the top of shank body 110 is transition connection portion 112, and the bottom of strut 120 is connected with transition connection portion 112,
And the bottom end of strut 120 and 112 arc-shaped transition of transition connection portion, i.e. curved transition sections 117.It can by the way of arc-shaped transition
Seamlessly transit junction, resistance in application process is small.From figure 2 it can be seen that the top surface of shank body 110 is plane, and
The junction of shank body 110 and strut 120 is arc-shaped transition.
Further, incorporated by reference to Fig. 1 and Fig. 4, be provided with a plurality of baltimore groove 113 in shank body 110, a plurality of baltimore groove 113 to
It less include the first baltimore groove 114 without strut 120 and the second baltimore groove 115 by strut 120, the first baltimore groove 114
Bottom end is extended to from the top of shank body 110, the second baltimore groove 115 extends to the bottom end of shank body 110 from 120 surface of strut.It is recessed
The setting of shape slot 113 can make to play the role of reducing resistance when implantation, mitigate the feeling of pain of patient, while also be cell, blood
Flowing up and down for liquid provides channel.
Further, strut 120 includes handle neck 121 interconnected and cervical vertebra oral area 122, the bottom of handle neck 121
It is connected with the top sidewall of shank body 110, the top of handle neck 121 is connected with cervical vertebra oral area 122.Strut 120 is cylindrical, and neck
The diameter of vertebra oral area 122 is greater than the diameter of handle neck 121, and the top of shank body 110 is provided with inner groovy 116, the slot of inner groovy 116
Body depth is 0.2-0.4mm.The design of this part is also for the structure for conforming better to human hip.
In preferred embodiments of the present invention, the second baltimore groove 115 extends to shank body 110 from the top of handle neck 121
Bottom end.Overall structure can more effectively reduce resistance, provide channel for cell, flowing up and down for blood.
In some embodiments, the first baltimore groove 114 can be designed as equally distributed 3, by the second baltimore groove 115
It is designed as 1.
Preferably, shank body 110 is cylinder, and the first baltimore groove 114 and the second baltimore groove 115 are arc-shaped.Arc is recessed
The central axis of slot structure is in the basal diameter of shank body 110, and generally cylindrical, arcuate structure, specific radian can root
It is adjusted according to the actual conditions of patient when printer model designs.
Further, cervical vertebra oral area 122 is entity structure, and shank body 110 and handle neck 121 are porous structure, can be claimed
For Integrate porous structure.The present invention uses porous structure, substantially reduces weight, to alleviate implantation material bone tissue
Load-bearing capacity reduces the risk of second fracture.
Specifically, the porous structure that the present invention uses is formed with supporting structure, and porous structure provides for the regeneration of osteocyte
Suitable microenvironment, the surfaces externally and internally with certain roughness are conducive to sticking, be proliferated and breaking up for cell, make implant
It is capable of forming the mechanical robust structure for twisting lock plus bioconjugation with bone tissue, finally combines together, the bullet of implant is effectively reduced
Property modulus while enough intensity can be also provided, can reduce or avoid implantation after with true osseous tissue interface generate stress collection
Stress shadowing effect is neutralized, implantation compatibility is improved.In addition, porous structure has very high structural stability, each portion structure
Uniform force avoids generating stress raisers and causing the fatigue fracture after long-time use, increases osteoconductive and extends
Service life of implant.
Further, the surface of hip stem is additionally provided with micro-nano crystal layer (not shown), the thickness of micro-nano crystal layer
Degree is 10-20nm.Micro-nano crystal layer can be further improved the biocompatibility and fatigue properties of implantation material.
The embodiment of the present invention also provides a kind of preparation method of hip prosthesis handle structure, comprising:
S1, structure design
Structure design can be carried out using the softwares such as Magics, design shank body 110 and strut 120 (including pointed cone portion
111, transition connection portion 112, baltimore groove 113, handle neck 121, cervical vertebra oral area 122 etc.), the generally integrated hip of porous structure
Articular prosthesis model.
S2,3D printing
Using 3D printing technique by 120 printing shapings of designed shank body 110 and strut.Preferably, 3D printing
Cheng Caiyong 3D laser melting method, disposable printing shaping, without the processing such as being cut, being spliced, raw material can close for titanium
Gold.Using integral type porous structure, and integral type printing shaping is used, eliminates complicated cumbersome process, effectively save
About cost.Specifically, 3D laser melting method is a kind of existing 3D printing technique, and concrete operations are not done excessive superfluous herein
It states.
The preparation of S3, micro-nano crystal layer
Micro-nano crystal layer is formed in prosthesis handle body structure surface with differential arc oxidization technique.Specifically, differential arc oxidation is also known as micro- etc.
Gas ions oxidation is to rely on arc discharge in aluminium, magnesium, titanium and its alloy surface by the combination of electrolyte and corresponding electrical parameter
The TRANSIENT HIGH TEMPERATURE high pressure of generation acts on, and grows the ceramic film based on substrate metal oxide.With material surface hardness
High, the features such as wear-resisting property is good, process, equipment are simple and convenient to operate, concrete operations and technological parameter are referred to existing
Technology.
It should be noted that the working principle of hip prosthesis handle structure 100 provided in an embodiment of the present invention: this kind of 3D is beaten
Print hip stem is porous structure, and porous structure declines the weight of prosthesis handle, realizes lightweight, and is the increasing of cell
It is long that space is provided, improve osteoconductive and Integrated implant；Porous structure is formed using polygon supporting structure, so that mechanical property
More stable, elasticity modulus reduces, and the stress reduced between implantation material and true bone tissue covers, and prevents osteoporosis.
In conclusion a kind of hip prosthesis handle structure provided in an embodiment of the present invention comprising shank body and be connected to handle
The top side of body and the strut tilted upward, the bottom of shank body are in sharp cone distal；By the way that a plurality of baltimore groove, including are arranged in shank body
One baltimore groove and the second baltimore groove, extend to bottom end from integrally-built top, and the work for reducing resistance can be played in implantation
With mitigating the feeling of pain of patient, while also providing channel for cell, flowing up and down for blood.
A kind of preparation method of hip prosthesis handle structure provided in an embodiment of the present invention, use 3D printing once at
Type, without the processing such as being cut, being spliced.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of hip prosthesis handle structure, which is characterized in that including the strut that shank body and inclination extend, the bottom of the strut
It is connected with the top sidewall of the shank body, the bottom of the shank body is in sharp cone distal, is provided with a plurality of baltimore groove in the shank body, more
Baltimore groove described in item includes at least the first baltimore groove without the strut and the second baltimore groove by the strut, described
First baltimore groove extends to bottom end from the top of the shank body, and second baltimore groove extends to described from the strut surface
The bottom end of shank body.
2. hip prosthesis handle structure according to claim 1, which is characterized in that the strut includes handle interconnected
The bottom of neck and cervical vertebra oral area, the handle neck is connected with the top sidewall of the shank body, the top of the handle neck and institute
Cervical vertebra oral area is stated to be connected.
3. hip prosthesis handle structure according to claim 2, which is characterized in that second baltimore groove is from the handle neck
The bottom end of the shank body is extended at the top of portion.
4. hip prosthesis handle structure according to any one of claim 1-3, which is characterized in that the shank body is cylinder
Shape, and first baltimore groove and second baltimore groove are arc-shaped.
5. hip prosthesis handle structure according to claim 2, which is characterized in that the strut is cylinder, and described
The diameter of cervical vertebra oral area is greater than the diameter of the handle neck.
6. hip prosthesis handle structure according to claim 2, which is characterized in that the cervical vertebra oral area is entity structure,
The shank body and the handle neck are porous structure.
7. hip prosthesis handle structure according to claim 1, which is characterized in that the top of the shank body is transition connection
Portion, the bottom of the strut are connected with the transition connection portion, and the bottom end of the strut and the transition connection portion arc mistake
It crosses.
8. hip prosthesis handle structure according to claim 1, which is characterized in that the top of the shank body is provided with indent
Slot, the groove body depth of the inner groovy are 0.2-0.4mm.
9. hip prosthesis handle structure according to claim 1, which is characterized in that the surface of the hip stem is also
Be provided with micro-nano crystal layer, the micro-nano crystal layer with a thickness of 10-20nm.
10. the preparation method of hip prosthesis handle structure described in any one of claim 1-9 characterized by comprising
Using 3D printing technique by printing shaping of the designed shank body and the strut；
Preferably, micro-nano crystal layer is formed in the prosthesis handle body structure surface with differential arc oxidization technique after the completion of 3D printing；
Preferably, the 3D printing process uses 3D laser melting method；
Preferably, the raw material of the prosthese handle structure are titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910586710.XA CN110151364A (en) | 2019-07-01 | 2019-07-01 | A kind of hip prosthesis handle structure and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134905A (en) * | 2019-12-30 | 2020-05-12 | 云南省第一人民医院 | Artificial hip joint and preparation method thereof |
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