EP0365521A1 - Articulation support device - Google Patents
Articulation support deviceInfo
- Publication number
- EP0365521A1 EP0365521A1 EP87907314A EP87907314A EP0365521A1 EP 0365521 A1 EP0365521 A1 EP 0365521A1 EP 87907314 A EP87907314 A EP 87907314A EP 87907314 A EP87907314 A EP 87907314A EP 0365521 A1 EP0365521 A1 EP 0365521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hinge
- supports
- articulation
- connecting rod
- bone
- 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.)
- Withdrawn
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 11
- 210000000056 organ Anatomy 0.000 abstract 2
- 210000002303 tibia Anatomy 0.000 description 9
- 210000000689 upper leg Anatomy 0.000 description 9
- 210000003127 knee Anatomy 0.000 description 4
- 210000002414 leg Anatomy 0.000 description 2
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001225 therapeutic effect 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
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/0123—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the knees
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
-
- 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
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0141—Additional features of the articulation with more than two parallel pivots
Definitions
- the present invention relates to a device for the support of human articulations, adapted for therapeutic use for damaged articulations and/or bone structures.
- Supporting structures for articulations are known, in particular for the articulation of the knee, which employ one hinge or two coaxial hinges to support the two parts of the leg which articulate at the knee: the femur and the tibia.
- known structures do not produce useful effects since they are unable to follow the natural movement of the tibia with respect to the femur, and therefore cause, in the knee, during the flexing of the leg, additional stresses which far from facilitating the healing process determine instead further damage. .
- the aim. of the present invention is to provide a device for the support of human articulations which allows to follow the natural movement of the articulation without producing extraneous stresses.
- An object of the invention is to provide a device having modest weight and dimensions which can be applied to the articulation and transported easily.
- Another object of the invention is to proy.ide an adjustable device, which can be adapted to the particular configuration of the articulation of each single individual.
- An important object of the invention is to allow the reconstruction of the cartilage tissues of the articulation.
- articulateations according to the invention which comprises a first element which supports a first member adapted to be connected to the first bone of the articulation, a second element supporting a second member adapted to be connected to the second bone of said articulation and is characterized 0 in that said first element supports a first hinge and a second hinge, and in that said second element supports a third hinge and a fourth hinge, said first hinge and said third hinge being connected by a first connecting rod, said second hinge and said fourth hinge being connected by a 5 second connecting rod, the axes of rotation of said first, second, third and fourth hinges being parallel to one another.
- figure 1 is a lateral view of the device according to the invention
- 5 figure 2 is a lateral view, in partial cross section, of an enlarged detail of the device of figure 1
- figure 3 is a lateral view of a second embodiment of the device according to the invention
- figure 4 is a lateral view, in partial cross section, of the device of figure 3.
- the device according to the invention is illustrated in its application to the articulation of a human knee.
- the device comprises a first element 10, which supports a first member 11.
- the first member 11 is adapted to be connected to the first bone of the articulation, to the femur in the particular case illustrated.
- the connection between the first member 1 and the femur is obtained by means of screws.
- a second element 12 supports a second member 13.
- the second member 13 is adapted to be connected to the second bone of the articulation, to the tibia in the particular case illustrated.
- the connection between the second member 13 and the tibia is achieved by means of screws.
- the first element 10 supports a first hinge 14 and a second hinge 15.
- the second element 12 supports a third hinge 16 and a fourth hinge 17.
- the ⁇ first hinge 14 and the third hinge 16 are connected by a first connecting rod 18.
- the second hinge 15 and the fourth hinge 17 are connected by a second connecting rod 19.
- the axes of rotation of the first, second, third and fourth hinges are parallel to one another and are substantially perpendicular to the plane of motion, that is to say to the plane which contains the femur and the tibia in all the positions of their relative motion.
- the positions of. the first hinge .14 and of the second hinge 15 on the first element 10 are each adjustable with two degrees of freedom of adjustment, in a plane perpendicular to the axes of rotation.
- the positions of the third hinge 16 and of the fourth hinge 17 on the second element 12 are each adjustable with two degrees of freedom of adjustment in a plane perpendicular to said axes of rotation.
- a hinge 20 which represents any of the hinges 14, 15, 16 and 17, is supported in the first element 10 or in the second element 11 by means of first adjustment means constituted, for example, by the pair of screws 21 and 22, which allow the setting of the first degree of freedom of adjustment.
- Said hinge 20 is furthermore supported by means of second adjustment means, constituted, for example, by the pair of screws 23 and 24, which allow the setting of the second degree of freedom of adjustment.
- the length of the second connecting rod 19 is adjustable, for example by means of a telescopic body 25 which can be locked in any desired position by means of a locking screw.
- the first element 10 is connected to the first member 11 by means of, for example, a spherical hinge 26, which can be released or locked in any position during the step of application of the device to the articulation.
- the second element 12 is connected to the second member 13 by means of a spherical hinge 27, which can be locked or released in any position during the application of the device to the articulation.
- the spherical hinges 26 and 27 allow to adapt the device to the particular and, to a certain extent, casual positioning of the screws in the femur and in the tibia.
- the device according to the invention comprises a first element 30, 37, which supports a first member 11.
- the first member 11 is adapted to be connected to the first bone of the articulation, to the femur in the particular case illustrated.
- the connection between the first member 11 and the femur is achieved by means of screws 32.
- a second element 33, 34, 35 supports a second member 13.
- the second member 13 is adapted to be connected to the second bone of the articulation, to the tibia in the particular case illustrated.
- the connection between the second member 13 and the tibia is achieved by means of screws 32.
- the first element 30, 31 supports a first hinge 36 and a second hinge
- the second element 33, 34, 35 supports a third hinge 38 and a fourth hinge 39.
- the first hinge 36 and the third hinge 38 are connected by a first connecting rod 40.
- the second hinge 37 and the fourth hinge 39 are connected by a second connecting rod 41.
- the axes of rotation of .the first, second, third and fourth hinges are parallel to one another and are substantially perpendicular to the plane of motion, that is to say to the plane which contains the femur and the tibia in all the positions of their relative motion.
- the first element 30, 31 is formed by a supporting body 30 which supports the first member 11, and by a telescopic arm 31 which is connected to the supporting body 30 by means of a hinge 42 which can be locked and released.
- the adjustable connecting rods 5 40 and 41 always operate only with their preset length, which must no longer be modified during operation.
- the arm 31 supports the first hinge 36
- the arm 33 supports the third hinge 38
- the arm 35 supports the fourth hinge 39.
- the supporting body 34 can be moved during the initial preadjustment with respect to the member 13 and can thus be fixed by acting on the nut 44.
- the present invention is susceptible to numerous modifications and variations, all of which are within the scope of the same inventive concept; in particular the means for the adjustment of the position of the hinges can be provided with a great number of solutions which are mechanically different but perfectly equivalent with regard to the present invention.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Nursing (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
Abstract
Un dispositif de soutien des articulations humaines comprend un premier élément (10) qui soutient un premier organe (11) apte à être relié au premier os de l'articulation, et un second élément (12) supportant un second organe (13) apte à être relié au second os de l'articulation. Le premier élément supporte une première articulation à charnière (14) et une deuxième articulation à charnière (15), tandis que le second élément supporte une troisième articulation à charnière (16) et une quatrième articulation à charnière (17). La première et la troisième articulation à charnière sont reliées par une première tige de liaison (18), et la deuxième et la quatrième articulation à charnière sont reliées par une seconde tige de liaison (19). Le dispositif peut s'appliquer sur des articulations endommagées, permettant et guidant le mouvement naturel de l'articulation jusqu'à sa cicatrisation complète.A device for supporting human joints comprises a first element (10) which supports a first organ (11) adapted to be connected to the first bone of the joint, and a second element (12) supporting a second organ (13) adapted to be connected to the second bone of the joint. The first member supports a first hinge joint (14) and a second hinge joint (15), while the second member supports a third hinge joint (16) and a fourth hinge joint (17). The first and third hinge joints are connected by a first connecting rod (18), and the second and fourth hinge joints are connected by a second connecting rod (19). The device can be applied to damaged joints, allowing and guiding the natural movement of the joint until it is completely healed.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2222986 | 1986-11-04 | ||
IT22229/86A IT1197951B (en) | 1986-11-04 | 1986-11-04 | ARTICULATION SUPPORT DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0365521A1 true EP0365521A1 (en) | 1990-05-02 |
Family
ID=11193369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87907314A Withdrawn EP0365521A1 (en) | 1986-11-04 | 1987-10-22 | Articulation support device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0365521A1 (en) |
JP (1) | JPH02502608A (en) |
IT (1) | IT1197951B (en) |
WO (1) | WO1988003395A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3837228A1 (en) * | 1987-11-05 | 1990-05-03 | Robert Dr Sturtzkopf | DEVICE FOR EXTERNAL DETERMINATION OF BONE FRAGMENTS |
IT1271315B (en) * | 1994-12-23 | 1997-05-27 | Medical High Tech Srl | CUSTOMIZABLE COMPUTERIZED SYSTEM FOR THE EXTERNAL FIXATION OF JOINTS TO A DEGREE OF HANDLING |
DE19641131C2 (en) * | 1996-10-05 | 1999-07-29 | Neumann Helmut Siegfried Dr Me | Joint training at an external fixator |
US7608074B2 (en) * | 2003-01-10 | 2009-10-27 | Smith & Nephew, Inc. | External fixation apparatus and method |
US7887567B2 (en) * | 2003-10-06 | 2011-02-15 | Mazer Surgical Technologies, Ltd. | Apparatus for spinal fixation of vertebrae |
JP4627709B2 (en) * | 2005-10-03 | 2011-02-09 | 株式会社 澤村義肢製作所 | Crotch prosthetic leg and thigh prosthetic leg using the turning telescopic link mechanism |
IT1391406B1 (en) * | 2008-09-11 | 2011-12-23 | Orthofix Srl | ORTHOPEDIC SUPPORT DEVICE FOR A KNEE JOINT |
US9770272B2 (en) | 2012-12-12 | 2017-09-26 | Wright Medical Technology, Inc. | Orthopedic compression/distraction device |
CN104873314A (en) * | 2015-04-28 | 2015-09-02 | 繁昌县倍思生产力促进中心有限公司 | Simple orthotic device for knee joints |
CN104873316B (en) * | 2015-04-28 | 2019-04-12 | 繁昌县倍思生产力促进中心有限公司 | A kind of unilateral knee sprung orthopedic appliance |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2238870A (en) * | 1939-02-04 | 1941-04-15 | Herbert H Haynes | Ambulatory splint |
GB1430990A (en) * | 1973-05-31 | 1976-04-07 | Hanger & Co Ltd J E | Knee joints for leg irons |
SU517196A1 (en) * | 1974-07-22 | 1977-09-25 | Центральный Ордена Трудового Красного Знамени Научно-Исследовательского Институт Травматологии И Ортопедии | Apparatus for repositioning and fixing bone fragments |
US4256097A (en) * | 1978-12-29 | 1981-03-17 | Willis Robert E | Orthopedic apparatus for protecting and supporting a bone joint |
FR2552660B1 (en) * | 1983-09-29 | 1988-10-14 | Delbos Jean | KNEE JOINT ASSISTANCE APPARATUS |
US4523585A (en) * | 1983-10-03 | 1985-06-18 | Lamb Steve R | Anatomic fracture brace for the knee |
-
1986
- 1986-11-04 IT IT22229/86A patent/IT1197951B/en active
-
1987
- 1987-10-22 EP EP87907314A patent/EP0365521A1/en not_active Withdrawn
- 1987-10-22 JP JP62506755A patent/JPH02502608A/en active Pending
- 1987-10-22 WO PCT/EP1987/000625 patent/WO1988003395A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO8803395A1 * |
Also Published As
Publication number | Publication date |
---|---|
IT1197951B (en) | 1988-12-21 |
WO1988003395A1 (en) | 1988-05-19 |
IT8622229A0 (en) | 1986-11-04 |
JPH02502608A (en) | 1990-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19890622 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17Q | First examination report despatched |
Effective date: 19910809 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920501 |