CN104095695B - Magnetic joint prosthesis - Google Patents
Magnetic joint prosthesis Download PDFInfo
- Publication number
- CN104095695B CN104095695B CN201310122391.XA CN201310122391A CN104095695B CN 104095695 B CN104095695 B CN 104095695B CN 201310122391 A CN201310122391 A CN 201310122391A CN 104095695 B CN104095695 B CN 104095695B
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- Prior art keywords
- stayed surface
- joint
- magnetic
- joint portion
- respectively arranged
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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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4225—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for feet, e.g. toes
-
- 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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
-
- 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
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
The invention provides a magnetic joint prosthesis, which comprises remote and near end joint components respectively arranged on small joint adjacent bone structures of the hand and the foot, wherein the remote end joint components comprise first support elements, a first handle element and a first support surface, the first support elements are respectively arranged at the two ends, the near end joint components comprise second support elements, a second handle element and a second support surface, the second support elements are respectively arranged at the two ends, a first combining part and a second combining part are respectively arranged on the remote and near end joint components, are made of magnetic materials and are mutually attracted through magnetism, and the joint stabilizing and holding effects are achieved. According to the technical scheme, small joint prostheses are combined and fixed through the magnetism, good stability is realized, and the structure is not like a split joint which is complicated in surgical operation since the split joint completely maintains the stability through peripheral soft tissue rebuilding. The magnetic joint prosthesis has the advantages that the design is ingenious, the structure is simple, the magnetic joint prosthesis can be designed and applied in various kinds of small joints of the hand and the foot, and in addition, the operation is easy.
Description
Technical field
The present invention relates to a kind of articular prosthesis, more particularly, to one kind are particularly well-suited to, and handss are podarthral to carry magnetic joint
Prosthese.
Background technology
Artificial joint is a kind of artificial organ that people design for saving the joint having lost function.Handss in human body
There are many Minor articulus in portion, foot, and the pathological changes of the Minor articulus of these handss and foot are clinical commonly encountered diseases, including osteoarthritis,
Quasi-wind gateway and traumatic arthritiss, can involve DIP (far saving interphalangeal joint), PIP (middle section interphalangeal joint) and MP (metacarpophalangeal joints)
Etc. all multi-joints.Particularly quasi-wind gateway brothers, often result in serious deformity.Wherein controlling using artificial facet joint's prosthetic replacement
Treatment method is a kind of a kind of important method that can retain finger-joint function and mechanics function.
The form of artificial facet joint's prosthese is a lot, has articulated, also has non-articulated, have single-stage, also have bipolar
, there is one, also have split, respectively have pluses and minuses.Although articulated prosthese is more stable, use time one is long, prosthese
Easily loosening, the prosthese life-span is shorter；Split type prosthese is it is desirable to the higher patient especially for quasi-wind gateway of mounting technique, split
The prosthese of formula generally requires to carry out more accurately soft tissue balance, and otherwise postoperative split type prosthese is easily dislocated, and leads to perform the operation
Failure.
Therefore, those skilled in the art be devoted to developing that a kind of structure is simple, good stability, be easily installed with magnetic
The articular prosthesis of property.
Content of the invention
In view of above-mentioned the problems of the prior art, the magnetic articular prosthesis of band of the present invention pass through magnetic force by Minor articulus
Prosthese combines to be fixed, and can maintain certain stability, in joint motion normally separately can both avoid hinge type again
Prosthese easily increases the stress of prosthese and bone interface in joint motion, leads to loosening of prosthese, also improves split type prosthese
No obvious restriction mechanism itself, needs to carry out more strict reconstruction to peri-prosthetic soft balance when mounted, this
Bright structure is simple, element few it is easy to operation.
The magnetic articular prosthesis of one kind band that the present invention provides, including being respectively arranged on brothers' Minor articulus adjacent bones
Far, proximal joint part, described distal joint part includes the first support component and the first handle element being respectively arranged on two ends, institute
State the first support component and be provided with the first stayed surface, described proximal joint part includes the second support unit being respectively arranged on two ends
Part and the second handle element, described second support component is provided with the second stayed surface matching with described first stayed surface,
The first joint portion and the second joint portion is further respectively had on described remote, proximal joint part.Described first joint portion and the second knot
Conjunction portion is made up of the material of attractive magnetic each other, and described first stayed surface and the second stayed surface are by described
Magnetic force attraction between first joint portion and the second joint portion makes first, second stayed surface attract each other and restricts connection.Logical
Cross mutually stable between magnetic force first stayed surface and the second stayed surface, mutual holding, should not dislocate.
In a better embodiment of the present invention, described first joint portion and the second joint portion support unit located at first
On part and the second support component.First joint portion and the second joint portion also can lead to located at remote, proximal joint part other positions
Cross and devise remote, proximal joint part a contact surface in magnetic force suction zone, and the contact of not far and near end joint component
Surface directly leans on magnetic force to attract, and so that joint motion is not affected substantially.
In another better embodiment of the present invention, described interconnective first stayed surface and the second stayed surface
The dissection surface shape of tubulose epiphysis that adjoins of shape and brothers' Minor articulus be consistent or close, belong to the prosthese of class anatomical form, false
Body is connected pulp cavity internal diameter and is consistent with tubular bone, and has large, medium and small different model.
In another better embodiment of the present invention, described first stayed surface and the second stayed surface are convex surface-recessed
The shape that face combines and the shape of a saddle combines.
In another better embodiment of the present invention, described first stayed surface can rotate around the second stayed surface and sliding
Dynamic.
In another better embodiment of the present invention, described first stayed surface is additionally provided with the projection of circular arc, institute
State the groove that the circular arc being matched with described arc-shaped convex is additionally provided with the second stayed surface, described first stayed surface can
Along the rotation of described groove.
In another better embodiment of the present invention, between described remote, proximal joint part, pass through magnetic attracting force
When connecting formation steady statue, meet the locus of brothers' Minor articulus original residing rest position state on dissecting.
In another better embodiment of the present invention, described first joint portion is made up of the magnetic material with magnetic force,
Described second joint portion is not by having magnetic ferrum, cobalt, nickel are made.It is of course also possible to be that the prosthese of the second joint portion is magnetic.
And be preferably the first joint portion and the second joint portion magnetic be mutually drawn onto stable no longer shift when, remote proximal joint just at the right time in handss or
The Minor articulus such as foot are in the position of rest position, so when the handss accepting Using prosthesis or foot are in rest, prosthese and Periprosthetic
The stress that sclerotin is received is minimum.The life-span that prosthese can be made greatly prolongs.
In another better embodiment of the present invention, described first stayed surface is by the magnetic material system with magnetic force
Become, described second stayed surface is not by having magnetic ferrum, cobalt, nickel are made.
Technical scheme passes through the magnetic force between the first joint portion and the second joint portion, by the far-end of articular prosthesis
Joint component and proximal joint part combine and stablize, and have the easy feature of fractionation.Thus both having had hinge type fixing joint
The advantage of prosthese, has the advantages that split type articular prosthesis again.And split easily, structure is simple, element is few, do not have hinge
Formula articular prosthesis complex structure, stability are poor, shortcoming that is easily loosening.Provide stable, flexible joint for clinical operation patient
Prosthese.Meanwhile, in clinical operation, it is possible to decrease installation specification, alleviate split type prosthese when mounted to soft tissue again
The high requirement of balance.
Brief description
Fig. 1 is the scheme of installation in foot for the embodiments of the invention；
Fig. 2 is the scheme of installation in hand for the embodiments of the invention；
Fig. 3 is the structural representation of embodiments of the invention；
Fig. 4 is the distal joint modular construction schematic diagram of embodiments of the invention；
Fig. 5 is the proximal joint modular construction schematic diagram of embodiments of the invention.
Specific embodiment
Below with reference to accompanying drawing, the present invention is done with concrete explaination.
Need to be illustrated, shown in Fig. 1 and Fig. 2 is that embodiments of the invention are near in foot metatarsophalangeal joints and hand
Side interphalangeal joint, the application of metacarpophalangeal joints are though it is foreseeable that embodiments of the invention also can be applicable to pass between distally refers to
Section and other Minor articulus positions such as foot and hand.
The as shown in Figure 1 magnetic articular prosthesis of one kind band of embodiments of the invention, including being respectively arranged in neighbour
The distal joint part 1 on foot metatarsophalangeal joints bone connecing and proximal joint part 2.As shown in Figure 4, distal joint part
1 includes the first support component 11 and the first handle element 12 being respectively arranged on two ends, and the first support component 11 is provided with the first support
Surface 13.
As shown in Figure 5, proximal joint part 2 includes the second support component 21 and the second handle element being respectively arranged on two ends
22, the second support component 21 is provided with the second stayed surface 23 matching with the first stayed surface 13.By the first support table
Face 13 and the cooperation of the second stayed surface 23, the first support component 11 and the second support component 21 are connected with each other, and rotatably.
As shown in Figures 4 and 5, the dorsal part of the first stayed surface 13 and the second stayed surface 23 further respectively has the first knot
Conjunction portion 15 and the second joint portion 25, the first joint portion 15 and/or the second joint portion 25 are made up of magnetic material, the first joint portion 15
With second connected by magnetic force between joint portion 25, and make mutually steady between the first stayed surface 13 and the second stayed surface 23
Determine, mutually hold, should not dislocate.
Embodiments of the invention pass through the magnetic force between the first joint portion and the second joint portion, and the far-end of articular prosthesis is closed
Section part 1 and proximal joint part 2 combine and fix, and have the easy feature of fractionation.Thus both having had hinge type fixing joint
The advantage of prosthese, has the advantages that split type articular prosthesis again.And split easily, structure is simple, element is few, do not have hinge
Formula articular prosthesis complex structure, stability are poor, shortcoming that is easily loosening.Provide stable, flexible joint for clinical operation patient
Prosthese.Meanwhile, in clinical operation, it is possible to decrease installation specification, it is not required to the more accurately soft tissue balance of split type prosthese,
Contribute to prevention dislocation.
As shown in Figure 2, a kind of magnetic articular prosthesis of band of embodiments of the invention are also mountable to adjacent handss
The distally in portion, proximal phalangeal joints, on the bone of metacarpophalangeal joints, as shown in Figure 23, the metacarpophalangeal joints at 4 positions and 5,6
The proximal phalangeal joints of position.
In an embodiment of the present invention, the first stayed surface 13 being preferably interconnecting and the shape of the second stayed surface 23
The dissection surface shape adjoining bone with interconnective human body Minor articulus is consistent, so that articular prosthesis coupling pairing is the most stable,
Less to human influence.Certainly, the dissection surface shape adjoining bone with human body Minor articulus close also may be used.
Additionally, in an embodiment of the present invention, the magnetic preferably passed through between the first joint portion and the second joint portion corresponds to
Connect, the rest in articular prosthesis are applied in human body of distal joint part 1 and proximal joint part 2 is defined as most stable of
Magnetic attracts pairing position.So, when human synovial is in rest position, articular prosthesis coupling pairing is the most stable, substantially unstressed
Effect.
As shown in Figure 3, in an embodiment of the present invention, the shape of preferred the first stayed surface 13 of distal joint part 1
Shape is concave surface, the convex surface being shaped as rule of the second stayed surface 23 of proximal joint part 2, the vault of the side 231 of convex surface
Highly it is more than the height (when used in toe metatarsophalangeal joints) of opposite side 232 vault.Thus it is steady between remote, proximal joint part
Regularly, the angled relationships between remote, proximal joint part 1,2 meet human body Minor articulus and are in angled relationships during rest position, close
Between section prosthese, coupling pairing is the most stable, substantially unstressed effect.
Certainly, when being applied to hand proximal phalangeal joints, metacarpophalangeal joints, the second stayed surface of proximal joint part 2
23 both sides also can be equal.
As shown in fig. 1, in an embodiment of the present invention, distal joint part 1 and proximal joint part 2 can be respectively
The less position with the magnetic that attracts each other of area on one stayed surface 13 and the second stayed surface 23, alternatively first
Support surface 13 and the entirety of the second stayed surface 23.
In an embodiment of the present invention, the preferably first joint portion and the second joint portion are by the magnetic mutually with attraction magnetic force
Material is made.In other embodiments, also can be made up of the magnetic material with magnetic force the first joint portion, the second joint portion is not by
Has magnetic ferrum, cobalt, nickel are made.Under special circumstances, first.Second stayed surface also may be designed to magnetic material.At this
In inventive embodiment, the making material of distal joint part 1 and proximal joint part 2 elects metal, polyethylene or pottery as, and
It is preferably metal to combine with ceramic with polyethylene or pottery with metal, metal.
In an embodiment of the present invention, form live ball between the first stayed surface 13 and the second stayed surface 23 to connect, the
Can mutually rotate between one stayed surface 13 and the second stayed surface 23, and the preferably first stayed surface 13 can be around the second support table
Face 23 rotates and slides, to obtain preferable rotating effect.Meanwhile, as shown in Figures 4 and 5, on the preferably first stayed surface 13
It is additionally provided with the projection 14 of circular arc, the second stayed surface 23 is additionally provided with the groove of the circular arc being matched with arc-shaped convex 14
24.Projection can be slided on groove, thus limiting between distal joint part 1 and proximal joint part 2 in the same plane
Mutually rotate, more conform to organization of human body.
Above the specific embodiment of the present invention is described in detail, but it has been intended only as example, the present invention has not limited
It is formed on particular embodiments described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and
Substitute also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and
Modification, all should cover within the scope of the invention.
Claims (1)
1. a kind of with magnetic articular prosthesis it is characterised in that include be respectively arranged in brothers' Minor articulus adjoin tubular bone
On remote, proximal joint part, described distal joint part includes being respectively arranged on the first support component and the first handle unit at two ends
Part, described first support component is provided with the first stayed surface, and described proximal joint part includes be respectively arranged on two ends second
Support component and the second handle element, described second support component is provided with the second support matching with described first stayed surface
Surface, described remote, proximal joint part further respectively has the first joint portion and the second joint portion, described first joint portion and the
Two joint portions are made up of attractive magnetic material each other, and described first stayed surface and the second stayed surface pass through institute
State the magnetic force between the first joint portion and the second joint portion and attract each other to restrict and connect；Described distal joint part and proximal joint
The making material of part elects metal, polyethylene or pottery respectively as, and compound mode is metal and metal, metal and polyethylene or pottery
Porcelain and pottery；Described first joint portion and the second joint portion are respectively arranged on the first support component and the second support component；
The tubulose epiphysis that the shape of described interconnective first stayed surface and the second stayed surface is adjoined with brothers' Minor articulus
Dissection surface shape be consistent；Described first stayed surface and the second stayed surface combine for convex-concave or the shape of a saddle combines
Shape；Described first stayed surface can rotate around the second stayed surface and slide；It is additionally provided with circular arc on described first stayed surface
The projection of shape, described second stayed surface is additionally provided with the groove of the circular arc being matched with described arc-shaped convex, and described
One stayed surface can rotate along described groove；
Described first stayed surface of described distal joint part be shaped as concave surface, described the second of described proximal joint part
The convex surface being shaped as rule of stayed surface, the spring of arch of the side (231) of described convex surface is more than opposite side (232) vault
Highly；When formation steady statue being connected by magnetic attracting force between described remote, proximal joint part, meet brothers' Minor articulus
The locus of original residing rest position state on dissecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122391.XA CN104095695B (en) | 2013-04-09 | 2013-04-09 | Magnetic joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122391.XA CN104095695B (en) | 2013-04-09 | 2013-04-09 | Magnetic joint prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104095695A CN104095695A (en) | 2014-10-15 |
| CN104095695B true CN104095695B (en) | 2017-02-08 |
Family
ID=51664498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310122391.XA Active CN104095695B (en) | 2013-04-09 | 2013-04-09 | Magnetic joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104095695B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996516A (en) * | 2016-06-29 | 2019-07-09 | 欧米茄创新技术有限公司 | Magnetic implants for arthrodesis |
| CN108100071B (en) * | 2017-12-05 | 2020-04-28 | 常州大学 | Robot knee joint based on line contact magnetic adsorption |
| CN108081307B (en) * | 2017-12-12 | 2020-12-01 | 常州大学 | Flexible elbow joint with two degrees of freedom |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332037A (en) * | 1980-12-15 | 1982-06-01 | Hospital For Joint Disease Orthopaedic Institute | Artificial joint |
| CN2123675U (en) * | 1992-05-29 | 1992-12-02 | 沈黔阳 | Magnetism joint |
| US6589281B2 (en) * | 2001-01-16 | 2003-07-08 | Edward R. Hyde, Jr. | Transosseous core approach and instrumentation for joint replacement and repair |
| BE1016116A4 (en) * | 2004-07-09 | 2006-03-07 | Cubber Jan De | MODULAR FRAME WITH COSMETIC COVER TO REPLACE THE FINGERBOT STRUCTURE. |
| FR2906453B1 (en) * | 2006-10-03 | 2009-03-06 | Arnaud Andre Soubeiran | INTRA-BODY LIFTING DEVICE WITH PERMANENT MAGNET. |
| CN101940507A (en) * | 2009-07-04 | 2011-01-12 | 戴闽 | Magnetic suspension artificial joint |
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2013
- 2013-04-09 CN CN201310122391.XA patent/CN104095695B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104095695A (en) | 2014-10-15 |
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