CN1226020C - Carbonaceous artificial head of humerus prosthesis - Google Patents
Carbonaceous artificial head of humerus prosthesis Download PDFInfo
- Publication number
- CN1226020C CN1226020C CN 03127649 CN03127649A CN1226020C CN 1226020 C CN1226020 C CN 1226020C CN 03127649 CN03127649 CN 03127649 CN 03127649 A CN03127649 A CN 03127649A CN 1226020 C CN1226020 C CN 1226020C
- Authority
- CN
- China
- Prior art keywords
- humerus
- head
- caput
- carbonaceous
- spheroid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- A61F2/40—Joints for shoulders
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- 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
The present invention relates to a carbonaceous artificial caput humerus prosthesis in orthopaedics, which belongs to artificial limbs. The carbonaceous artificial caput humerus prosthesis is formed by the method that a carbonaceous caput humerus sphere and a caput humerus handle, wherein the bottom of the caput humerus sphere is provided with a fixing groove; the caput humerus handle is composed of a fixing post and a rod of the caput humerus handle; the fixing post is embedded and fixed in the fixing groove; the included angle of the axle wire of the joint surface of the caput humerus sphere and the centre line of the rod of the caput humerus handle is 135 to 145 degrees. Carbonaceous caput humerus sphere of the present invention has the advantages of favorable mechanical strength and chemical stability, light weight, abrasion resistance corrosion resistance, no cytotoxicity, sensitization or inherent toxicity, good biocompatibility, elastic modulus approximate to that of bones, and osteoplastic activity and lubricity. The caput humerus handle has the advantages of favorable mechanical strength, corrosion resistance and good biocompatibility. The present invention is suitable for cases needing to replace caput humeri, such as the comminuted fracture of caput humeri, the fracture of old caput humeri, shoulder dysfunction, the tumor or tumor-like condition of caput humeri, etc.
Description
Technical field
The present invention relates to improvement, especially the carbonaceous artificial humeral head replacement of orthopaedics, belong to the pseudocolloid in the medical science with artificial prosthesis.
Background technology
Abroad showing of humeral head replacement studied carefully and application started from for 20 end of the centurys, but its selection is nothing more than metal material (as cobalt, chromium, molybdenum alloy material) or macromolecular material, and structure all is an one, has certain advantage, but it is big to exist the metallic spring modulus, easily electrolysis and generation metal fatigue; Easily wearing out of macromolecular material produces the toxic reaction of free state, and carcinogenic factor is arranged; And all lack deficiencies such as lubricity, biocompatibility difference, and also there is certain defective on its structure, easily loosening, rotation are clinical of non-ideal use behind the implant into body, cause very big misery to the patient simultaneously.
Summary of the invention
The objective of the invention is at above-mentioned deficiency, a kind of uniqueness simple in structure be provided, anti-pressure and abrasion-proof, good biocompatibility, lubricity are good, behind the implant into body firmly, be convenient to the carbonaceous artificial humeral head replacement of clinical use.
The technical scheme that realizes the object of the invention is: this carbonaceous artificial humeral head replacement, combine by carbonaceous head of humerus spheroid, head of humerus handle, bottom at the head of humerus spheroid has holddown groove, the head of humerus handle is made of with the head of humerus handle bar that is connected its underpart the fixed leg on top, fixed leg is inlayed and is fixed in the holddown groove, the angle of the axis of head of humerus spheroid articular surface and head of humerus handle bar centreline space is 135-145 °, be characterized in having the bone grafting hole, on the head of humerus spheroid, have suspension eye on the top of head of humerus handle bar.
For meeting the Human Physiology size, angle the best of the axis of head of humerus spheroid articular surface and head of humerus handle bar centreline space is 140 °.In order to guarantee fixed leg and holddown groove fixation, correspondence has detent on holddown groove and the contacted cylinder of fixed leg, is provided with fixed station at the connecting portion of fixed leg and head of humerus handle bar.The cross section of head of humerus handle bar is rounded, is connected firmly in order to guarantee head of humerus handle bar and people's bone, prevents to extract, becomes flexible or rotate, and vertically has anti-spin slot along head of humerus handle bar, laterally has antiratchetting groove.For operation is provided convenience, have on the top of head of humerus handle bar and to extract the hole.
The present invention's uniqueness simple in structure, design science is reasonable, and it is matrix that the head of humerus spheroid is selected high-strength graphite for use, scribble the carbonaceous material of siliceous low temperature pyrogenation isotropism carbon coating through special process at matrix surface, have excellent mechanical intensity and chemical stability, light weight, surface abrasion resistance is corrosion-resistant, no cytotoxicity, no sensitization, hereditary-less toxicity, good biocompatibility, elastic modelling quantity is similar to bone, does not produce fatigue rupture, and bone growth promoting activity and lubricity are arranged.The head of humerus handle can be carbonaceous, also can be titanium alloy.Selected for use the titanium of titanium alloy 6 aluminum 4 vanadium are made through the hot moulding Forging Technology, are top quality embedded materials in the metal material, have good mechanical strength and corrosion resistance, and good biocompatibility, elastic modelling quantity are lower than other metal.Good bond was fixed after head of humerus handle fixed leg and head of humerus spheroid holddown groove were made binding agent filling detent with high-quality bone cement (acrylic compounds cement).
Carbonaceous artificial humeral head replacement of the present invention, except that having above-mentioned advantage, its structural unique distinction makes operation technique simple, convenient, fast, and guarantee is provided for the success of operation.Carbonaceous artificial humeral head replacement implantable bone intracavity in the operation, anti-spin slot can prevent that prosthese from rotating, and antiratchetting groove can prevent prosthetic loosening or extract, can also be in the bone grafting hole horizontal bone grafting, this bone of postoperative and bone cavity grow together, and adopt above-mentioned measure can make prosthese and people's bone fix more firm.If the location is when inaccurate in operation, can utilize and extract the hole prosthese is extracted, implant again.The suspension eye that has the suspention brachial biceps on the top of prosthese can prevent the dislocation of carbonaceous artificial humeral head replacement effectively.Because the bio-compatible of carbonaceous artificial humeral head is good, elastic modelling quantity and bone are approximate and have lubricity, and prosthese can be sewed up joint capsule after implanting, and recovers the function of shoulder fully.
The present invention is applicable in the case of comminuted fracture of the humeral head, outmoded fracture of the humeral head shoulder dysfunction and necessary displacement such as caput humeralis tumor or tumor-like lesion head of humerus.
Description of drawings
Accompanying drawing 1 is the structural representation of an embodiment of the present invention.Fig. 2 is the cross-sectional view of head of humerus spheroid among Fig. 1.Fig. 3 is the structural representation of head of humerus handle among Fig. 1.Fig. 4 is the A-A cross-sectional view of head of humerus handle bar among Fig. 3.Fig. 5 is the structural representation of another embodiment of the present invention.Among the figure: 1 head of humerus spheroid, 2 head of humerus handles, 3 holddown grooves, 4 fixed legs, 5 head of humerus handle bars, 6-3,6-4 detent, 7 fixed stations, 8 anti-spin slots, 9 antiratchetting grooves, 10 extract the hole, 11 bone grafting holes, 12 suspension eyes, 13 binding agents.
The specific embodiment
The present invention is further described with the embodiment that provides below in conjunction with accompanying drawing.
Embodiment 1: with reference to accompanying drawing 1,2,3,4, this carbonaceous artificial humeral head replacement is combined by carbonaceous head of humerus spheroid 1 and head of humerus handle 2 two parts.The head of humerus spheroid is a hemisphere, has cylindrical holddown groove 3 in the bottom of head of humerus spheroid along direction of axis line, has radial detent 6-3 on holddown groove.The head of humerus handle is made of with the head of humerus handle bar 5 that is connected its underpart the cylindrical fixed leg 4 on top, connecting portion at fixed leg and head of humerus handle bar is provided with fixed station 7, on the fixed leg with holddown groove on the corresponding position of detent 6-3 on have radial detent 6-4.The cross section of head of humerus handle bar is rounded, vertically has anti-spin slot 8 along it, laterally has antiratchetting groove 9, also has on the top of head of humerus handle bar and extracts hole 10 and bone grafting hole 11.During combination, the fixed leg on the head of humerus handle inserted in the holddown groove on the head of humerus spheroid and make binding agent 13 with bone cement be filled in the detent, make the fixing one that forms of both good bond.For the axis that meets Human Physiology size head of humerus spheroid articular surface (in the present embodiment just head of humerus handle fixed leg axial line) angle α, also claim collodiaphyseal angle to be designed to 140 ° with head of humerus handle bar centreline space.
Embodiment 2: with reference to Fig. 5, its structure is substantially the same manner as Example 1, and the head of humerus spheroid is most spheroids, the holddown groove disalignment line on the head of humerus spheroid, and making collodiaphyseal angle α is 140 °, has suspension eye 12 on the head of humerus spheroid.
Wherein carbon one titanium artificial humeral head replacement: embodiment 1 is fit to simple head of humerus articular surface damage shoulder dysfunction case; Embodiment 2 is fit to comminuted fracture of the humeral head or pathological changes, as tumor or class neoplastic lesion.Carbon-carbon artificial humeral head replacement: be fit in a big way humerus head and neck syntripsis or the case of tumor of head and neck or tumor-like lesion.
The present patent application people presses the characteristics of embodiment according to adult's head of humerus, 42 millimeters of head of humerus sphere diameters, 44 millimeters, 46 millimeters have been made respectively, the carbonaceous artificial humeral head replacement of different sizes such as the carbon-titanium of the long 110-140 millimeter of head of humerus handle, carbon-carbon, to be fit to different patients' needs, simple and convenient quick through inner clinic trial operation technique, success rate 100%, the postoperative check is respond well.
Claims (5)
1, a kind of carbonaceous artificial humeral head replacement, combine by carbonaceous head of humerus spheroid, head of humerus handle, bottom at the head of humerus spheroid has holddown groove, the head of humerus handle is made of with the head of humerus handle bar that is connected its underpart the fixed leg on top, fixed leg is inlayed and is fixed in the holddown groove, the angle of the axis of head of humerus spheroid articular surface and head of humerus handle bar centreline space is 135-145 °, it is characterized in that having the bone grafting hole on the top of head of humerus handle bar, has suspension eye on the head of humerus spheroid.
2, carbonaceous artificial humeral head replacement according to claim 1 is characterized in that the axis of head of humerus spheroid articular surface and the angle of head of humerus handle bar centreline space are 140 °.
3, carbonaceous artificial humeral head replacement according to claim 1 is characterized in that correspondence has detent on holddown groove and the contacted cylinder of fixed leg, is provided with fixed station at the connecting portion of fixed leg and head of humerus handle bar.
4, carbonaceous artificial humeral head replacement according to claim 1 is characterized in that vertically having anti-spin slot along head of humerus handle bar, laterally has antiratchetting groove.
5, carbonaceous artificial humeral head replacement according to claim 1 is characterized in that having on the top of head of humerus handle bar and extracts the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03127649 CN1226020C (en) | 2003-07-23 | 2003-07-23 | Carbonaceous artificial head of humerus prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03127649 CN1226020C (en) | 2003-07-23 | 2003-07-23 | Carbonaceous artificial head of humerus prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1481765A CN1481765A (en) | 2004-03-17 |
| CN1226020C true CN1226020C (en) | 2005-11-09 |
Family
ID=34153214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03127649 Expired - Fee Related CN1226020C (en) | 2003-07-23 | 2003-07-23 | Carbonaceous artificial head of humerus prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1226020C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061973B (en) * | 2007-05-18 | 2011-03-09 | 中国人民解放军第三军医大学第一附属医院 | Artificial humeral head replacement |
| CN103445886B (en) * | 2013-03-07 | 2016-01-06 | 刘礼初 | A kind of Biotype artificial hip joint superficial substitution prosthese |
| CN107582219A (en) * | 2017-09-04 | 2018-01-16 | 北京爱康宜诚医疗器材有限公司 | Shoulder joint humerus handle prosthese |
| CN111745105A (en) * | 2020-07-02 | 2020-10-09 | 无锡航亚科技股份有限公司 | Forging forming method of artificial shoulder humerus handle |
-
2003
- 2003-07-23 CN CN 03127649 patent/CN1226020C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1481765A (en) | 2004-03-17 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20051109 Termination date: 20130723 |