CN109620482A - Upper arm bone shank part and the shoulder joint system for applying it - Google Patents
Upper arm bone shank part and the shoulder joint system for applying it Download PDFInfo
- Publication number
- CN109620482A CN109620482A CN201910106911.5A CN201910106911A CN109620482A CN 109620482 A CN109620482 A CN 109620482A CN 201910106911 A CN201910106911 A CN 201910106911A CN 109620482 A CN109620482 A CN 109620482A
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- Prior art keywords
- linear grooves
- upper arm
- linear
- arm bone
- shank part
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Links
- 210000000784 arm bone Anatomy 0.000 title claims abstract description 40
- 210000000323 shoulder joint Anatomy 0.000 title claims abstract description 16
- 238000010146 3D printing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 241001653121 Glenoides Species 0.000 claims description 23
- 238000005452 bending Methods 0.000 claims description 7
- 210000000988 bone and bone Anatomy 0.000 abstract description 23
- 239000007787 solid Substances 0.000 abstract description 8
- 210000002758 humerus Anatomy 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 108010048734 sclerotin Proteins 0.000 description 3
- 229910000883 Ti6Al4V Inorganic materials 0.000 description 2
- 239000002639 bone cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- UELITFHSCLAHKR-UHFFFAOYSA-N acibenzolar-S-methyl Chemical compound CSC(=O)C1=CC=CC2=C1SN=N2 UELITFHSCLAHKR-UHFFFAOYSA-N 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- 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
- A61F2/40—Joints for shoulders
-
- 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
- A61F2/40—Joints for shoulders
- A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
-
- 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
- A61F2/40—Joints for shoulders
- A61F2/4059—Humeral shafts
-
- 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
- A61F2002/30199—Three-dimensional 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
-
- 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]
Abstract
The invention discloses a kind of upper arm bone shank parts, upper arm bone shank part includes shank, handle neck and pallet, shank and handle neck junction seamlessly transit, pallet is fixed on the upper end of handle neck, and the surface of handle neck is equipped with porous layer, and the hole of porous layer is in honeycomb, porosity is 52-72%, the range in aperture is 500-700 μm, porous layer with a thickness of 0.5-1.5mm, upper arm bone shank part using 3D printing technique one at.The invention also discloses a kind of shoulder joint systems of application upper arm bone shank part.Upper arm bone shank part and shoulder joint system of the invention can promote Bone Ingrowth, and the bond strength of porous layer and solid section is high, and the joint service life is long.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to upper arm bone shank part and the shoulder joint system using it.
Background technique
Artificial shoulder joint system is generally divided into bone-cement type and bion.Currently, bone-cement type is using relatively broad.It is raw
The joint handle application of object type is also rising, and generally in the proximal end of joint handle, has the coating for slightly making face, it is therefore an objective to increase humerus marrow
Contact area between intracavitary cancellous bone and joint handle.Coating has micropore effect, can promote Bone Ingrowth, so that joint handle
It is combined together with pulp cavity, improves the service life in joint.Disadvantage of the prior art is that coating be by plasma spraying or
What person's metal sintering was realized on joint handle matrix, coating and basal part can be sometimes detached from, and caused falling for coating, influenced shoulder
The joint service life.In addition, either spraying technology or metal sintering, are unable to accurately control distribution and its technical parameter of coating
(such as aperture, porosity, thickness etc.), therefore optimization is unable to reach with the combination of sclerotin.Requirement with people to medical treatment is more next
It is higher, promote the ability of Bone Ingrowth to put forward new requirements joint component.
Summary of the invention
According to an aspect of the present invention, a kind of upper arm bone shank part, including sequentially connected shank, handle neck and support are provided
Disk, the surface of handle neck are equipped with porous layer, and the hole of porous layer is in honeycomb, and porosity 52-72%, the range in aperture is 500-
700 μm, porous layer with a thickness of 0.5-1.5mm, upper arm bone shank part is integrally formed using 3D printing technique.
In some embodiments, the collodiaphyseal angle of upper arm bone shank part is 130-140 °.
In some embodiments, handle neck includes medial surface, lateral surface, front surface and rear surface, and wherein medial surface is in curved
Curved, lateral surface is flat face.
In some embodiments, the front surface of handle neck is equipped with a plurality of spaced first linear grooves and a plurality of interval
The second linear grooves being arranged, rear surface are equipped with a plurality of spaced third linear groove and a plurality of spaced 4th
Linear grooves.
In some embodiments, the first linear grooves, the second linear grooves, third linear groove and the 4th linear grooves
Opening width be all 0.3-0.7mm, the first linear grooves, the second linear grooves, third linear groove and the 4th linear grooves
Depth be 0.2-0.4mm, the spacing between adjacent two the first linear grooves is 1.1-1.9mm, and adjacent two second are linear
Spacing between groove is 1.1-1.9mm, and the spacing between adjacent two third linear grooves is 1.1-1.9mm, adjacent two
Spacing between 4th linear grooves is 1.1-1.9mm.
In some embodiments, the first linear grooves, the second linear grooves, third linear groove and the 4th linear grooves
All be in bending, the first linear grooves to far from medial surface direction be bent, the second linear grooves to far from lateral surface direction
Bending, third linear groove are bent to the direction far from medial surface, and the 4th linear grooves are bent to the direction far from lateral surface.
In some embodiments, the upper end of handle neck includes the first top surface and the second top surface, connecting trays on the second top surface,
First linear grooves and third linear groove extend close to the position of the second top surface from the position close to medial surface, and second is linear
Groove and the 4th linear grooves extend close to the position of the first top surface from the position close to lateral surface.
According to another aspect of the present invention, a kind of shoulder joint system, including upper arm bone shank part are provided, further includes liner, close
Save broad-mouthed receptacle for holding liquid ball and glenoid cavity plate.
In some embodiments, ontology includes upper bottom surface, and upper bottom surface is equipped with porous layer, and the hole of porous layer is in honeycomb
Shape, porosity 52-72%, the range in aperture are 500-700 μm, porous layer with a thickness of 0.5-1.5mm, glenoid cavity plate uses
3D printing technique is integrally formed.
In some embodiments, tray surface is equipped with mounting groove, and the bottom of liner is equipped with interconnecting piece, and interconnecting piece is inserted into
Mounting groove is simultaneously interference fitted with mounting groove, and the spherical surface of the upper surface indent of liner, the lower surface of glenoid cavity ball is smooth sphere, is closed
Save lower surface and the sphere-contact of broad-mouthed receptacle for holding liquid ball, ontology further includes bottom surface, and bottom surface is equipped with the second connector, glenoid cavity ball it is upper
Surface is equipped with the second mounting groove, and the second connector is inserted into the second mounting groove and is interference fitted with the second mounting groove.
Presence of the invention it is following the utility model has the advantages that (1) honeycomb sandwich more to meet human body humerus bone trabecula cellular
Structure, the cancellous bone of pulp cavity are easier to be adhered to the surface of handle neck, and sclerotin is easy to grow into hole；(2) linear grooves are agreed with
The trend of bone trabecula further promotes the combination of cancellous bone and upper arm bone shank part；(3) porous layer, linear grooves use 3D
Printing technique is integrally formed, and porous layer and solid section bond strength are high, and porous layer is not easy to fall off, extends upper arm bone shank part
With shoulder joint system lifetim.
Detailed description of the invention
Fig. 1 is the front view of the upper arm bone shank part of an embodiment of the present invention.
Fig. 2 is the front view of the upper arm bone shank part of an embodiment of the present invention.
Fig. 3 is the perspective view of the upper arm bone shank part of an embodiment of the present invention.
Fig. 4 is the rearview of the upper arm bone shank part of an embodiment of the present invention.
Fig. 5 is the perspective view of another angle of the upper arm bone shank part of an embodiment of the present invention.
Fig. 6 is the schematic cross-section of the first linear grooves of the upper arm bone shank part of an embodiment of the present invention.
Fig. 7 is the front view of the shoulder joint system of an embodiment of the present invention.
Fig. 8 is the perspective view of the liner of the shoulder joint system of an embodiment of the present invention.
Fig. 9 is the perspective view of the glenoid cavity ball of the shoulder joint system of an embodiment of the present invention.
Figure 10 is the perspective view of the glenoid cavity plate of the shoulder joint system of an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail by 1-10 with reference to the accompanying drawing.
As shown in Figure 1, upper arm bone shank part 1, including sequentially connected shank 100, handle neck 101 and pallet 102.Shank 100
It is seamlessly transitted with 101 junction of handle neck, pallet 102 is fixed on the upper end of handle neck 101.When replacement joint, shank 100 and handle neck
101 are inserted into human body medullary cavity of humerus.Shank 100 is straight-bar, and shank 100 is generally cylindrical or shank 100 is far from handle neck
101 directions are tapered.The extending direction of shank 100 determines the first reference axis 800, and the normal direction of pallet 102 has determined the second ginseng
Examine axis 900, the angle of the first reference axis 800 and the second reference axis 900 is collodiaphyseal angle, in the present embodiment, the model of collodiaphyseal angle
Enclose is 130-140 °.As shown in Figure 2-5, handle neck 101 includes medial surface 103, lateral surface 104, front surface 105 and rear surface 106,
Wherein medial surface 103 is bent, and lateral surface 104 is flat face.The curved shape of medial surface 103 makes 102 end of nearly pallet of handle neck 101
100 end of wide and close shank is narrow, which can prevent the upper arm bone shank part 1 from sinking to medullary cavity of humerus.Front surface 105 and rear surface 106
It is parallel or substantially parallel, so that front surface 105 and rear surface 106 is defined handle neck 101 in flat, which can be improved humerus handle
The anti-rotation of component 1.As shown in figure 3,102 surface of pallet has mounting groove 107, in some embodiments, pallet 102 is
Circle, mounting groove 107 are circular trough.
The surface of handle neck 101 is equipped with porous layer, and the hole of porous layer is in honeycomb, porosity 52-72%, the model in aperture
Enclosing is 500-700 μm, porous layer with a thickness of 0.5-1.5mm.In some embodiments, porous layer is specifically distributed in medial surface
103, lateral surface 104, front surface 105 and rear surface 106.The porosity ranges of human body bone trabecula are 70-84%, and pore diameter range is
360-820um.The honeycomb sandwich of present embodiment is easier to adhere to close to human body humerus trabecular bone structure, the cancellous bone of pulp cavity
On the surface of handle neck 101, sclerotin is easy to grow into hole.
As shown in Fig. 2, the front surface 105 of handle neck 101 be equipped with a plurality of spaced first linear grooves 108 and it is a plurality of between
Every the second linear grooves 109 of setting.As shown in figure 4, rear surface 106 is equipped with a plurality of spaced third linear groove
110 and a plurality of spaced 4th linear grooves 111.First linear grooves 108, the second linear grooves 109, third linear are recessed
The opening width of slot 110 and the 4th linear grooves 111 is all 0.3-0.7mm, the first linear grooves 108, the second linear grooves
109, the depth of third linear groove 110 and the 4th linear grooves 111 is 0.2-0.4mm, adjacent two the first linear grooves 108
Between spacing be 1.1-1.9mm, the spacing between adjacent two the second linear grooves 109 is 1.1-1.9mm, adjacent two articles the
Spacing between three linear grooves 110 is 1.1-1.9mm, and the spacing between adjacent two article of the 4th linear grooves 111 is 1.1-
1.9mm.First linear grooves 108, the second linear grooves 109, third linear groove 110 and the 4th linear grooves 111 it is transversal
Facial contour shape can be or substantially rectangular, trapezoidal or other shapes.Fig. 6 schematically shows the of a kind of embodiment
One linear grooves, 108 cross sectional shape, and schematically show position corresponding to each size of the first linear grooves 108.Second
The section shape and size of linear grooves 109, third linear groove 110 and the 4th linear grooves 111 can with it is first linear recessed
Slot 108 is identical, therefore shows no longer in the form of attached drawing herein.First linear grooves 108, the second linear grooves 109, third line
Property groove 110 and the 4th linear grooves 111 in also be porous structure.Humerus bone trabecula can not only grow into the hole to stationary plane
In, and linear grooves growth can be sought connections with, further promote Bone Ingrowth.
As shown in Figure 2 and Figure 4, the first linear grooves 108, the second linear grooves 109, third linear groove 110 and the 4th
Linear grooves 111 are all in bending, and the middle part of the first linear grooves 108 is bent to the direction far from medial surface 103, and second is linear
The middle part of groove 109 is bent to the direction far from lateral surface 104, and the middle part of third linear groove 110 is to far from medial surface 103
The middle part of direction bending, the 4th linear grooves 111 is bent to the direction far from lateral surface 104.First linear grooves 108 are from close
The position of medial surface 103 extends to the upper end of handle neck 101, and the second linear grooves 109 are extended to from the position close to lateral surface 104
The upper end of handle neck 101, third linear groove 110 extend to the upper end of handle neck 101, the 4th line from the position close to medial surface 103
Property groove 111 from the position close to lateral surface 104 extend to the upper end of handle neck 101.In some embodiments, handle neck 101
Upper end includes the first top surface 112 and the second top surface 113, and the first top surface 112 is connected with lateral surface 104, and the second top surface 113 with it is interior
Side 103 be connected, wherein connecting trays 102 on the second top surface 113, the first linear grooves 108 and third linear groove 110 from
The position of the second top surface 113, the second linear grooves 109 and the 4th linear grooves are extended close to close to the position of medial surface 103
111 extend close to the position of the first top surface 112 from the position close to lateral surface 104.It is formed between adjacent linear groove linear
The first linear boss 114 is formed between boss, such as adjacent first linear grooves 108, it is clear that in linear grooves and linear boss
On all have porous structure.It macroscopically sees, the arrangement of the bone trabecula of humerus end has directionality, the handle neck of present embodiment
The trend of the linear grooves on 101 surfaces and the orientation for having complied with bone trabecula.Upper arm bone shank part 1 is inserted into humerus end
When, handle neck 101 is contacted with the bone trabecula of humerus.Bone trabecula into the porous layer on 101 surface of handle neck when growing, directionality arrangement
Bone trabecula grow into the hole for the linear boss being closer, then grown in the hole into linear grooves, bone trabecula exists
Still it is able to maintain directionality arrangement in growth course, it is disorganized to avoid bone trabecula.The ordered arrangement of bone trabecula is for bone
It is significant to withstand forces measurer.In addition, 101 concave-convex surface interphase structure of handle neck, expands porous layer and humerus bone trabecula
Contact area, is conducive to the combination of upper arm bone shank part 1 and humerus, and improves the mechanical connection of upper arm bone shank part 1 Yu humerus,
Prevent upper arm bone shank part 1 mobile.
Upper arm bone shank part 1 is integrally formed using 3D printing technique, i.e. solid section, porous structure and the first linear grooves
108, the second linear grooves 109, third linear groove 110 and the 4th linear grooves 111 are all integrally formed using 3D printing technique.
The size distribution of the molding porous layer hole of 3D printing technique and position distribution uniformity are good, and are integrally formed due to using,
The bond strength of porous layer and solid section is high.Experiment shows by taking Ti-6Al-4V as an example, the porous layer that 3D printing goes out with it is solid
Static stretch intensity > 66MPa of part binding site, (requirement of the U.S. FDA for coating is quiet to Static Shear Strength > 52MPa
State tensile strength > 22MPa, Static Shear Strength > 20MPa).
According to another aspect of the present invention, as shown in fig. 7, providing a kind of shoulder joint system, including upper arm bone shank part 1,
Liner 2, glenoid cavity ball 3 and glenoid cavity plate 4.As shown in figure 8, the bottom of liner 2 is equipped with interconnecting piece 201, interconnecting piece 201 is inserted into
It in mounting groove 107 in upper arm bone shank part 1, and is interference fitted with mounting groove 107, connect upper arm bone shank part 1 with liner 2.It is excellent
Selection of land, interconnecting piece 201 are cylindrical boss.The upper surface of liner 2 is configured to match with glenoid cavity ball 3.In some embodiment party
In formula, 2 upper surface is padded as the spherical surface 202 of indent.As shown in figure 9, the lower surface of glenoid cavity ball 3 is smooth sphere, joint
The upper surface of broad-mouthed receptacle for holding liquid ball 3 is equipped with the second mounting groove 301, it is preferable that the second mounting groove 301 is circular trough.Spherical surface 202 and glenoid cavity ball
3 following table face contact.
As shown in Figure 10, glenoid cavity plate 4 includes ontology 401, and ontology 401 includes bottom surface 402 and upper bottom surface 403, bottom
Face 402 is equipped with the second connector 404.Preferably, ontology 401 is cylindrical.Second connector 404 is configured to and the second peace
Tankage 301 matches, it is preferable that the second connector 402 is cylindrical.Second connector 402 is matched with 301 interference of the second mounting groove
It closes, connects glenoid cavity ball 3 and glenoid cavity plate 4.Upper bottom surface 403 is equipped with third connector 405, it is preferable that third connector 405
It is cylindrical.When glenoid cavity plate 4 is connect with shoulder blade, upper bottom surface 403 is contacted with shoulder blade, and third connector 405 is inserted into shoulder
In shoulder blade pulp cavity.Ontology 401 is equipped with perforative threaded hole 406, and screw 5 is equipped in threaded hole 406, by screw 5 by joint
Broad-mouthed receptacle for holding liquid plate 4 is fixed on shoulder blade.
Upper bottom surface 403 is equipped with porous layer, and the hole of porous layer is in honeycomb, porosity 52-72%, the range in aperture
Be 500-700 μm, porous layer with a thickness of 0.5-1.5mm.Upper bottom surface 403 is contacted with shoulder blade bone trabecula, on upper bottom surface 403
Hole and porosity, the aperture of shoulder blade bone trabecula etc. are close, may advantageously facilitate Bone Ingrowth.
The glenoid cavity plate 4 of present embodiment is integrally formed using 3D printing technique, i.e. solid section and porous structure is all adopted
It is integrally formed with 3D printing technique.The size distribution of the molding porous layer hole of 3D printing technique and position distribution uniformity are good,
And since using being integrally formed, the bond strength of porous layer and solid section is high.Experiment shows by taking Ti-6Al-4V as an example, 3D
Static stretch intensity > 66MPa of the porous layer and solid section binding site that print, Static Shear Strength > 52MPa.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. upper arm bone shank part (1), which is characterized in that including sequentially connected shank (100), handle neck (101) and pallet (102),
The surface of handle neck (101) is equipped with porous layer, and the hole of porous layer is in honeycomb, and the range of porosity 52-72%, aperture are
500-700 μm, porous layer with a thickness of 0.5-1.5mm, upper arm bone shank part is integrally formed using 3D printing technique.
2. upper arm bone shank part (1) according to claim 1, which is characterized in that the collodiaphyseal angle of upper arm bone shank part (1) is 130-
140°。
3. upper arm bone shank part (1) according to claim 1, which is characterized in that handle neck (101) includes medial surface (103), outer
Side (104), front surface (105) and rear surface (106), wherein medial surface (103) is in bending, and lateral surface (104) is straight
Face.
4. upper arm bone shank part (1) according to claim 3, which is characterized in that the front surface (105) of handle neck (101) is equipped with
A plurality of spaced first linear grooves (108) and a plurality of spaced second linear grooves (109), rear surface (106)
It is equipped with a plurality of spaced third linear groove (110) and a plurality of spaced 4th linear grooves (111).
5. upper arm bone shank part (1) according to claim 4, which is characterized in that the first linear grooves (108), second are linearly
The opening width of groove (109), third linear groove (110) and the 4th linear grooves (111) is all 0.3-0.7mm, First Line
Property groove (108), the second linear grooves (109), the depth of third linear groove (110) and the 4th linear grooves (111) are
0.2-0.4mm, the spacing between adjacent two the first linear grooves (108) are 1.1-1.9mm, adjacent two the second linear grooves
(109) spacing between is 1.1-1.9mm, and the spacing between adjacent two third linear grooves (110) is 1.1-1.9mm, phase
Spacing between adjacent two article of the 4th linear grooves (111) is 1.1-1.9mm.
6. upper arm bone shank part (1) according to claim 4, which is characterized in that the first linear grooves (108), second are linearly
Groove (109), third linear groove (110) and the 4th linear grooves (111) are all in bending, the first linear grooves (108)
Middle part is bent to the direction far from medial surface (103), and the middle parts of the second linear grooves (109) is to the side far from lateral surface (104)
To bending, the middle part of third linear groove (110) is bent to the direction far from medial surface (103), the 4th linear grooves (111)
Middle part is bent to the direction far from lateral surface (104).
7. upper arm bone shank part (1) according to claim 6, which is characterized in that the upper end of handle neck (101) includes the first top surface
(112) and the second top surface (113), connecting trays (102) on the second top surface (113), the first linear grooves (108) and third linear
Groove (110) extends close to the position of the second top surface (113), the second linear grooves from the position close to medial surface (103)
(109) and the 4th linear grooves (111) from the position close to lateral surface (104) extend close to the positions of the first top surface (112).
8. shoulder joint system, which is characterized in that further include lining including the described in any item upper arm bone shank parts (1) of claim 1-7
Pad (2), glenoid cavity ball (3) and glenoid cavity plate (4).
9. shoulder joint system according to claim 8, which is characterized in that glenoid cavity plate (4) includes ontology (401), described
Ontology (401) includes upper bottom surface (403), and the upper bottom surface (403) is equipped with porous layer, and the hole of porous layer is in honeycomb, hole
Gap rate is 52-72%, and the range in aperture is 500-700 μm, porous layer with a thickness of 0.5-1.5mm, glenoid cavity plate (4) uses 3D
Printing technique is integrally formed.
10. shoulder joint system according to claim 9, which is characterized in that pallet (102) surface is equipped with mounting groove
(107), pad (2) bottom be equipped with interconnecting piece (201), the interconnecting piece (201) be inserted into the mounting groove (107) and with institute
State mounting groove (107) interference fit, the spherical surface (202) of the upper surface indent of the liner (2), the lower surface of glenoid cavity ball (3)
Lower surface for smooth sphere, glenoid cavity ball (3) is contacted with spherical surface (202), and the ontology (401) further includes bottom surface (402),
The bottom surface (402) is equipped with the second connector (404), and the upper surface of the glenoid cavity ball (3) is equipped with the second mounting groove
(301), second connector (404) be inserted into second mounting groove (301) and with the second mounting groove (301) mistake
It is full of cooperation.
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| CN201910106911.5A CN109620482A (en) | 2019-02-02 | 2019-02-02 | Upper arm bone shank part and the shoulder joint system for applying it |
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