CN109172054A - A kind of restricted shoulder joint prosthesis - Google Patents
A kind of restricted shoulder joint prosthesis Download PDFInfo
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- CN109172054A CN109172054A CN201811231429.6A CN201811231429A CN109172054A CN 109172054 A CN109172054 A CN 109172054A CN 201811231429 A CN201811231429 A CN 201811231429A CN 109172054 A CN109172054 A CN 109172054A
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- Prior art keywords
- mortar cup
- layer mortar
- semicircle
- internal layer
- shoulder joint
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- 210000000323 shoulder joint Anatomy 0.000 title claims abstract description 46
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 72
- 210000004095 humeral head Anatomy 0.000 claims abstract description 24
- 239000006185 dispersion Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 59
- 239000000463 material Substances 0.000 claims description 22
- 239000000919 ceramic Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 8
- 239000002639 bone cement Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000003462 bioceramic Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 2
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 210000002758 humerus Anatomy 0.000 description 19
- 238000006073 displacement reaction Methods 0.000 description 11
- 241001653121 Glenoides Species 0.000 description 10
- 210000001991 scapula Anatomy 0.000 description 8
- 210000000513 rotator cuff Anatomy 0.000 description 7
- 210000002659 acromion Anatomy 0.000 description 6
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 5
- 208000013201 Stress fracture Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000002980 postoperative effect Effects 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 206010044565 Tremor Diseases 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 210000000852 deltoid muscle Anatomy 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- DMGNFLJBACZMRM-UHFFFAOYSA-N O[P] Chemical compound O[P] DMGNFLJBACZMRM-UHFFFAOYSA-N 0.000 description 1
- 206010069135 Periprosthetic fracture Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 210000000784 arm bone Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 210000002745 epiphysis Anatomy 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 201000001119 neuropathy Diseases 0.000 description 1
- 230000007823 neuropathy Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 208000033808 peripheral neuropathy Diseases 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000008733 trauma Effects 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
- A61F2/40—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
- A61F2/4081—Glenoid components, e.g. cups
-
- 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
- A61F2002/4011—Joints for shoulders including proximal or total replacement of the humerus
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (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
A kind of restricted shoulder joint prosthesis of the present invention, including semicircle outer layer mortar cup, semicircle outer layer mortar cup surface is equipped with several screwing through hole, several dispersion screws pass through screwing through hole and are fixedly connected with human body shoulder blade, semicircle outer layer mortar cup connects with semicircle internal layer mortar cup liner ball, and semicircle internal layer mortar cup liner connects with humeral head replacement ball；Semicircle internal layer mortar cup liner side is equipped with stop collar, and the left side of stop collar and semicircle internal layer mortar cup liner is bolted to connection, and humeral head replacement is limited in semicircle internal layer mortar cup liner；Anatomical neck prosthese is embedded in humeral head replacement, one end of anatomical neck prosthese passes through stop collar and connect with humeral shaft prosthese.The restricted shoulder joint prosthesis of the present invention can evade 50% even higher, complication existing for existing design, and in contrast also there is no increase for manufacturing process and cost, at the same time, its indication is more extensive, and corresponding adjustment can be made according to patient's omoplate Bones morphology, and a large amount of patients therefrom benefit.
Description
Technical field
The present invention relates to a kind of shoulder joint prosthesis more particularly to a kind of restricted shoulder joint prosthesis.
Background technique
Shoulder joint is the maximum joint of physical activity degree, and because of its small feature of big broad-mouthed receptacle for holding liquid, while being also that human body is most unstable
Fixed joint, rotator cuff be one group it is sarcous surround the structure formed around humerus head, by supraspinatus, infraspinous muscle, roundlet
Flesh and subscapular muscle are constituted, which is the important Dynamic stable structures of shoulder joint.
For influencing the terminal phase shoulder joint retrogression of life and the shoulder trauma patient of certain complexity, shoulder joint is set
Change i.e. that simultaneously or separately manually material substitution humerus head and cavitas glenoidalis are considered as the therapeutic scheme of unique feasible.Market at present
On the shoulder joint displacement prosthese that uses have and meet anthropotomical design i.e. conventional type or anatomical form, be hereinafter referred to as positive shoulder and with
The opposite design inverted type of human anatomic structure inverts type, hereinafter referred to as anti-shoulder.Positive shoulder displacement be suitable for rotator cuff function compared with
Intact patient, because still needing rotator cuff that humerus head is fixed on Scapula glenoid after displacement.But due to positive shoulder replacement surgery sheet
Rotator cuff will be destroyed, and patient still faces the risk of rotator cuff regression, failure after displacement, thus use reduce year by year at present.
The characteristics of anti-shoulder is concave design in humerus head side, and convex design is in Scapula glenoid.In addition, anti-shoulder displacement passes through tune
The position of whole rotation center simultaneously extends humerus length, adjustment humerus neck-humeral shaft angle (Neck-ShaftAngle, NSA) etc.
Method, as far as possible guarantee deltoid muscle moment keep nervous, thus by triangle Muscle tensility, humerus head can be consolidated by not depending on rotator cuff
It is scheduled on Scapula glenoid.The original design intention of anti-shoulder is exactly the patient towards rotator cuff failure, thus is gradually praised highly, it is considered to be is restored
The final solution of shoulder joint function.Typical anti-shoulder prosthesis is made of five parts: artificial body of the humerus handle 1, prosthese epiphysis 2, poly- second
Alkene liner 3, spherical broad-mouthed receptacle for holding liquid 4 and glenoid cavity chassis 5.
It is realized on the market there are many product at present and positive shoulder prosthesis and anti-is respectively constituted by different group modes
Shoulder prosthesis.Such as 2017 announce 106999287 A patent of CN, including equipped with the humeral component of bar, head piece and
By humeral component connect with head piece or joint connection connection or joint connector, such structure meet anatomical structure
Or the operation of patient itself needs；The method that the patent also proposed two kinds of adjustment dry angle NSA of neck-simultaneously.One kind is recess portion
Or the axis V of recess 6 is corresponding with the main axis of symmetry of protrusion, but not corresponding with the axis of symmetry S of head piece.In this feelings
Under condition, there are angle S2 relative to the axis of symmetry S of head piece for protrusion.This configuration allow adjust head piece relative to
The angle of humeral component 1, in order to more accurately support the anatomical form structure of patient and the surgical operation requirement of implantation material.
Another kind is not placed in the middle for the protrusion of head piece but bias is placed.The axis V and protrusion of recess portion or recess
The main axis of symmetry Z2 in portion is corresponding, but the axis of symmetry S relative to head piece has certain translation.This configuration allows to adjust
Position of the head piece relative to humeral component, in order to more accurately support patient anatomical form structure and implantation material it is outer
Section's operation requires.
By above-mentioned；Two methods can adjust the dry angle NSA of practical neck-of prosthese, the i.e. axis of symmetry S of head piece
With the angle of bar axis of symmetry L, can then adjust deltoid muscle length and tension of the humerus in same position, it is ensured that prosthese not from
Glenoid cavity deviates from and is unlikely to cause excessive pressure to shoulder blade, reaches balance.
Although effect is all very outstanding in the follow-up of current most of anti-shoulders, its complication is difficult to avoid that.
And the uniqueness due to shoulder joint anatomical structure keeps the complication of shoulder displacement bright the difference of shoulder joint use habit with patient
It is aobvious to be higher than other joint replacements, even if the anti-shoulder more praised highly is also the same in this way, shoulder blade cutting and acromion stress fracture are
Anti- shoulder replaces exclusive complication, and common complication, which has, forms grooving between prosthese and bone, the dislocation of prosthetic joint, hemotoncus,
Infection, neuropathy, prosthese connect loosening, Periprosthetic fracture etc. with bone.It is noted that secondary operation is both to be also to make
At the high risk factor of complication.Compared to one-stage operation, the second stage of complication and the problem probability that occurs together will be higher by one times.
At the same time, due to the final solution that the displacement of anti-shoulder has been many shoulder joint problems, prosthese fails often
It is catastrophic, the effective redemption scheme of shortage.Relative to other joint replacements, anti-shoulder replaces complication shoulder blade outstanding
Cutting, postoperative dislocation and prosthese shakiness and three aspect of prosthetic loosening.Although prosthetic designs have already passed through a series of improvement, this
A little complication do not solve at all.
To sum up, existing shoulder joint prosthesis displacement has the following problems: 1. will appear the problem of hitting under shoulder blade, make
At the reason of be prosthese use interior shifting rotation center, in order to guarantee the tension of deltoid muscle, need by extend humerus length
Degree, this will lead to received in shoulder joint, polyethylene liner and shoulder blade lower edge cause to hit in outreach activity；2. will appear postoperative
The reason of dislocation and prosthese are unstable, cause is that prosthese not exclusively agrees with when the design of anti-shoulder allows patient's humerus to naturally droop,
Humerus length is not sufficient to ensure that deltoid muscle keeps tension, then prosthese can be allowed to completely disengage, and prosthese is dislocated after lacking fulcrum,
Cause prosthese unstable and dislocation；3. will appear prosthetic loosening and acromion stress fracture.
Therefore, will appear for the displacement of existing shoulder joint prosthesis hit under shoulder blade, postoperative dislocation and prosthese shakiness with
And the problems such as prosthetic loosening and acromion stress fracture, become those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The present invention is to solve existing shoulder joint prosthesis displacement to will appear shock under shoulder blade, postoperative dislocation and prosthese shakiness
And the problems such as prosthetic loosening and acromion stress fracture, provide restricted shoulder joint prosthesis and its application method.
To achieve the above object, the invention adopts the following technical scheme:
Provide a kind of restricted shoulder joint prosthesis, including semicircle outer layer mortar cup 1,1 table of semicircle outer layer mortar cup
Face is equipped with several screwing through hole 2, and several dispersion screws 3 pass through the screwing through hole 2 and are fixedly connected with human body shoulder blade, and described half
Circular skin mortar cup 1 pads 4 balls with semicircle internal layer mortar cup and connects, the semicircle internal layer mortar cup liner 4 and 5 ball of humeral head replacement
It connects；The semicircle internal layer mortar cup pads 4 sides and is equipped with stop collar 6, the stop collar 6 and semicircle internal layer mortar cup liner 4
Left side is bolted to connection, and the humeral head replacement 5 is limited in the semicircle internal layer mortar cup liner 4；Institute
It states and is embedded with anatomical neck prosthese 7 in humeral head replacement 5, one end of the anatomical neck prosthese 7 passes through the stop collar 6 and humeral shaft
Prosthese 8 connects.
Further, the material of the semicircle internal layer mortar cup liner 4 is ceramics or high molecular polythene.
Further, the material of the humeral shaft prosthese 8 is titanium alloy or ceramics.
Further, the material of the stop collar 6 is ceramics or titanium alloy or high crosslinked polyethylene.
Further, the shape of the stop collar 6 is symmetrical annular or asymmetric annular.
Further, the quantity of several dispersion screws 3 is 4-6.
Further, the humeral shaft prosthese 8 is inserted into human body humeral shaft by the assembly method of press-fitting or bone cement.
Further, the humeral shaft prosthese 8 is covered with the bioceramic hydroxyapatite coating layer with hole.
Further, the semicircle internal layer mortar cup liner 4 is non-limiting semiglobe, outer diameter 4-7cm, described
Humeral head replacement 5 rotates 180 ° in the semicircle internal layer mortar cup liner 4 in all directions.
Further, the length of the anatomical neck prosthese 7 is 5-20cm.
The present invention by adopting the above technical scheme, compared with prior art, has the following technical effect that
Restricted shoulder joint prosthesis provided by the invention, include semicircle outer layer mortar cup, semicircle internal layer mortar cup liner,
Humeral head replacement, stop collar, anatomical neck prosthese and humeral shaft prosthese, if semicircle outer layer mortar cup surface is logical equipped with bolt stem
Hole passes through bolt hole and connect semicircle outer layer mortar cup with human body shoulder blade, and semicircle internal layer mortar cup liner is embedded half
In circular skin mortar cup, while humeral head replacement being embedded in semicircle internal layer mortar cup liner, passes through limit after being embedded
Humeral head replacement is limited in semicircle internal layer mortar cup liner by ring, while anatomical neck prosthese is connect with humeral head replacement, by the upper arm
Backbone prosthese is inserted into human body humeral shaft by way of press-fitting or bone cement.
The present invention can evade 50% even higher, and complication existing for existing design, manufacturing process and cost are compared
For also there is no increase, at the same time, indication is more extensive, corresponding adjustment can be made according to patient's omoplate Bones morphology,
A large amount of patients therefrom benefit.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram of the restricted shoulder joint prosthesis of the present invention；
Fig. 2 is the structural schematic diagram of semicircle outer layer mortar cup in the restricted shoulder joint prosthesis of the present invention；
Fig. 3 is the structural schematic diagram of stop collar in the restricted shoulder joint prosthesis of the present invention；
Fig. 4 is the structural representation perspective view of the restricted shoulder joint prosthesis of the present invention；
Fig. 5 is the topology view of the restricted shoulder joint prosthesis of the present invention；
Fig. 6 is the perspective view in the restricted shoulder joint prosthesis embodiment 1 of the present invention；
Fig. 7 is the structural schematic diagram in the restricted shoulder joint prosthesis embodiment 1 of the present invention；
Fig. 8 is the structural schematic diagram in the restricted shoulder joint prosthesis embodiment 2 of the present invention；
Wherein, each appended drawing reference are as follows:
1- semicircle outer layer mortar cup, 2- screwing through hole, 3- disperse screw, 4- semicircle internal layer mortar cup liner, 5- humerus head
Prosthese, 6- stop collar, 7- anatomical neck prosthese, 8- humeral shaft prosthese, 9- bone grafting, 10- original Scapula glenoid.
Specific embodiment
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
Embodiment 1
As shown in fig. 6-7, the embodiment of the invention provides a kind of restricted shoulder joint prosthesis, including semicircle outer layer mortar cup
1, semicircle 1 surface of outer layer mortar cup is equipped with several screwing through hole 2, and several dispersion screws 3 pass through screwing through hole 2 and human body shoulder blade
It is fixedly connected, semicircle outer layer mortar cup 1 pads 4 balls with semicircle internal layer mortar cup and connects, semicircle internal layer mortar cup liner 4 and humerus head
5 ball of prosthese connects；Semicircle internal layer mortar cup pads 4 sides and is equipped with stop collar 6, a left side for stop collar 6 and semicircle internal layer mortar cup liner 4
End face is bolted to connection, and humeral head replacement 5 is limited in semicircle internal layer mortar cup liner 4；In humeral head replacement 5
It is embedded with anatomical neck prosthese 7, one end of anatomical neck prosthese 7 passes through stop collar 6 and connect with humeral shaft prosthese 8.
The one aspect of the present embodiment, as shown in fig. 6-7, the material of semicircle internal layer mortar cup liner 4 is ceramics, and ceramics are resistance to
Mill property is higher than metal and high cross-linking polyethylene materials, and without the risk of metal ion evolution after metal interface abrasion.Ceramic material
Material has higher Mohs' hardness, but brittleness is bigger, agrees that fragmentation can be caused after violent violence.But the present invention is due to being restricted vacation
Body, humerus head position is relatively fixed, and daily shoulder mobility will not form large impact to prosthetic joint face, therefore Ceramics
The semicircle internal layer mortar cup liner 4 and ceramic humeral head replacement 5 of material will be preferred plan.
The one aspect of the present embodiment, as shown in fig. 6-7, the material of humeral shaft prosthese 8 are titanium alloy or ceramics.
The one aspect of the present embodiment, as shown in fig. 6-7, the material of stop collar 6 are that ceramics or titanium alloy or high crosslinking are poly-
Ethylene.
The one aspect of the present embodiment, as shown in fig. 6-7, the shape of stop collar 6 are symmetrical annular or asymmetric annular.
The one aspect of the present embodiment, as shown in fig. 6-7, the quantity of several dispersion screws 3 is 4-6, in the present embodiment
4 dispersion screws 3 of middle selection are respectively placed in top Scapula glenoid, bone face on the lower, thicken strengthened shoulder by bone-grafting material
Peak, mesoscapula intersection and strengthened coronoid process is thickened by bone-grafting material, wherein Scapula glenoid is disperse screw 3 main
Attachment portion disperses the sclerotin that screw 3 should not run through, pierce out coronoid process.
The one aspect of the present embodiment, as shown in fig. 6-7, humeral shaft prosthese 8 pass through press-fitting or the assembly method of bone cement
It is inserted into human body humeral shaft.
The one aspect of the present embodiment, as shown in fig. 6-7,8 surface of humeral shaft prosthese are covered with the bioceramic with hole
Hydroxyapatite coating layer, using press-fitting and two kinds of assembly methods of bone cement, surface uses the coating with hole, helps to increase
Frictional force and induction bone tissue attachment.
The one aspect of the present embodiment, as shown in fig. 6-7, semicircle internal layer mortar cup liner 4 is non-limiting semiglobe,
Its outer diameter is 4-7cm, and humeral head replacement 5 rotates 180 ° in semicircle internal layer mortar cup liner 4 in all directions, the asian population upper arm
Bone is as follows in the dimension data of anatomical neck plane: upper and lower diameter ML: male: 46.9 ± 2.0 (43.5-51.4) mm women: 41.6
±1.7(37.9-45.2)mm；Anteroposterior diameter (AP): male: 43.7 ± 2.2 (39.4-49.5) mm women: 38.4 ± 1.7 (34.0-
42.4)mm；In our design, mortar cup outer layer outer diameter need to be more than or equal to anatomical neck of humerus plane maximum diameter, therefore in the design
Mortar cup outer layer outer diameter A F range is 4~7cm.
The one aspect of the present embodiment, as shown in fig. 6-7, the length of anatomical neck prosthese 7 is 5-20cm, due to asian population
Humeral shaft is thinner, and not applicable very long design, general to select within 20cm.Especially in initial surgery, it is placed in shorter prosthese
It can be possible revision procedure reserved space later.
Embodiment 2
As shown in fig. 6-7, the embodiment of the invention provides a kind of restricted shoulder joint prosthesis without supraspinous fossa bone grafting, packets
Semicircle outer layer mortar cup 1 is included, semicircle 1 surface of outer layer mortar cup is equipped with several screwing through hole 2, and several dispersion screws 3 pass through screw
Through-hole 2 is fixedly connected with human body shoulder blade, and semicircle outer layer mortar cup 1 pads 4 balls with semicircle internal layer mortar cup and connects, semicircle internal layer
Mortar cup liner 4 connects with 5 ball of humeral head replacement；Semicircle internal layer mortar cup pads 4 sides and is equipped with stop collar 6, stop collar 6 and semicircle
The left side of internal layer mortar cup liner 4 is bolted to connection, and humeral head replacement 5 is limited in semicircle internal layer mortar cup and is padded
In 4；Anatomical neck prosthese 7 is embedded in humeral head replacement 5, one end of anatomical neck prosthese 7 passes through stop collar 6 and humeral shaft prosthese 8
Connection.
The one aspect of the present embodiment, as shown in figure 8, the material of semicircle internal layer mortar cup liner 4 is ceramics, ceramic wear-resisting
Property be higher than metal and high cross-linking polyethylene materials, and without metal interface abrasion after metal ion evolution risk.Ceramic material
There is higher Mohs' hardness, but brittleness is bigger, agrees that fragmentation can be caused after violent violence.But the present invention is due to being restricted vacation
Body, humerus head position is relatively fixed, and daily shoulder mobility will not form large impact to prosthetic joint face, therefore Ceramics
The semicircle internal layer mortar cup liner 4 and ceramic humeral head replacement 5 of material will be preferred plan.
The one aspect of the present embodiment, as shown in figure 8, the material of humeral shaft prosthese 8 is titanium alloy or ceramics.
The one aspect of the present embodiment, as shown in figure 8, the material of stop collar 6 is ceramics or titanium alloy or the high poly- second of crosslinking
Alkene.
The one aspect of the present embodiment, as shown in figure 8, the shape of stop collar 6 is symmetrical annular or asymmetric annular.
The one aspect of the present embodiment, as shown in figure 8, the quantity of several dispersion screws 3 is 4-6, in the present embodiment
It can also be placed in 4-5 dispersion screw 3, shoulder broad-mouthed receptacle for holding liquid, coronoid process and acromion are all solid bony structures, and three may be constructed firm bone
Property " pedestal ", directly fixed mortar cup can still be placed in 4-5 pieces of screw under this embodiment scheme, if sclerotin is abundant, can suitably increase
Screw number, such as at the Scapula glenoid more dispose screw, need to do former Scapula glenoid 10 appropriate planing, forming before fixed mortar cup,
Bone face after making the fitting planing of mortar cup, can promote contact area in the case where not bone grafting as far as possible.
The one aspect of the present embodiment, as shown in figure 8, humeral shaft prosthese 8 is inserted by the assembly method of press-fitting or bone cement
Enter in human body humeral shaft.
The one aspect of the present embodiment, as shown in figure 8, humeral shaft prosthese 8 is covered with the bioceramic hydroxyl phosphorus with hole
Lime stone coating, using press-fitting and two kinds of assembly methods of bone cement, surface uses the coating with hole, facilitates increasing friction force
With induction bone tissue attachment.
The one aspect of the present embodiment, as shown in figure 8, semicircle internal layer mortar cup liner 4 is non-limiting semiglobe,
Outer diameter is 4-7cm, and humeral head replacement 5 rotates 180 ° in semicircle internal layer mortar cup liner 4 in all directions, asian population humerus
Head is as follows in the dimension data of anatomical neck plane: upper and lower diameter ML: male: 46.9 ± 2.0 (43.5-51.4) mm women: 41.6 ±
1.7(37.9-45.2)mm；Anteroposterior diameter (AP): male: 43.7 ± 2.2 (39.4-49.5) mm women: 38.4 ± 1.7 (34.0-
42.4)mm；In our design, mortar cup outer layer outer diameter need to be more than or equal to anatomical neck of humerus plane maximum diameter, therefore in the design
Mortar cup outer layer outer diameter A F range is 4~7cm.
The one aspect of the present embodiment, as shown in figure 8, the length of anatomical neck prosthese 7 is 5-20cm, due to the asian population upper arm
Backbone is thinner, and not applicable very long design, general to select within 20cm.Especially in initial surgery, being placed in shorter prosthese can
Possible revision procedure reserved space after thinking.
The restricted shoulder joint prosthesis of the present invention will appear for the displacement of existing shoulder joint prosthesis to be hit under shoulder blade, is postoperative
The problems such as dislocation and prosthese shakiness and prosthetic loosening and acromion stress fracture, the restricted shoulder joint prosthesis of the present invention can be evaded
50% is even higher, complication existing for existing design, and manufacturing process and cost are in contrast also there is no increasing, with this
Meanwhile indication is more extensive, and corresponding adjustment can be made according to patient's omoplate Bones morphology, a large amount of patients therefrom benefit.
The specific embodiment of this practical restricted shoulder joint prosthesis and its application method is described in detail above, but
It is merely an example, and the present invention is not restricted to particular embodiments described above.To those skilled in the art, appoint
Equivalent modifications and substitutions to the present invention are also within the scope of the present invention for what.Therefore, essence of the invention is not being departed from
Made equal transformation and modification under mind and range, all should be contained within the scope of the invention.
Claims (10)
1. a kind of restricted shoulder joint prosthesis, which is characterized in that including semicircle outer layer mortar cup (1), the semicircle outer layer mortar
Cup (1) surface is equipped with several screwing through hole (2), and several dispersion screws (3) pass through the screwing through hole (2) and human body shoulder blade is solid
Fixed connection, the semicircle outer layer mortar cup (1) connect with semicircle internal layer mortar cup liner (4) ball, the semicircle internal layer mortar cup lining
Pad (4) connects with humeral head replacement (5) ball；Semicircle internal layer mortar cup liner (4) side is equipped with stop collar (6), the limit
Ring (6) and the left side of semicircle internal layer mortar cup liner (4) are bolted to connection, and the humeral head replacement (5) are limited
System is in the semicircle internal layer mortar cup liner (4)；Anatomical neck prosthese (7), the solution are embedded in the humeral head replacement (5)
The one end for cuing open neck prosthese (7) passes through the stop collar (6) and connect with humeral shaft prosthese (8).
2. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the semicircle internal layer mortar cup liner
(4) material is ceramics or high molecular polythene.
3. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the material of the humeral shaft prosthese (8)
For titanium alloy or ceramics.
4. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the material of the stop collar (6) is pottery
Porcelain or titanium alloy or high crosslinked polyethylene.
5. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the shape of the stop collar (6) is pair
Claim annular or asymmetric annular.
6. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the number of several dispersions screw (3)
Amount is 4-6.
7. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the humeral shaft prosthese (8) passes through pressure
Match or the assembly method of bone cement is inserted into human body humeral shaft.
8. restricted shoulder joint prosthesis according to claim 1, which is characterized in that cover on humeral shaft prosthese (8) surface
There is the bioceramic hydroxyapatite coating layer with hole.
9. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the semicircle internal layer mortar cup liner
It (4) is non-limiting semiglobe, outer diameter 4-7cm, the humeral head replacement (5) is in the semicircle internal layer mortar cup liner
(4) 180 ° are rotated in all directions.
10. restricted shoulder joint prosthesis according to claim 1, which is characterized in that the length of the anatomical neck prosthese (7)
For 5-20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231429.6A CN109172054A (en) | 2018-10-22 | 2018-10-22 | A kind of restricted shoulder joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231429.6A CN109172054A (en) | 2018-10-22 | 2018-10-22 | A kind of restricted shoulder joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109172054A true CN109172054A (en) | 2019-01-11 |
Family
ID=64942559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811231429.6A Pending CN109172054A (en) | 2018-10-22 | 2018-10-22 | A kind of restricted shoulder joint prosthesis |
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| Country | Link |
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| CN (1) | CN109172054A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117860442A (en) * | 2023-12-19 | 2024-04-12 | 浙江大学 | 3-point supporting non-limiting high-coverage shoulder-socket prosthesis |
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| US20070156246A1 (en) * | 2003-08-29 | 2007-07-05 | Meswania Jayantilal M | Shoulder joint prosthetic system |
| US20150289984A1 (en) * | 2014-04-15 | 2015-10-15 | Matthew D. BUDGE | Total Shoulder Arthroplasty Prosthesis |
| CN105030380A (en) * | 2015-05-15 | 2015-11-11 | 江苏奥康尼医疗科技发展有限公司 | Combined artificial hip joint cup |
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