Source: http://www.google.com/patents/US5645590?ie=ISO-8859-1&dq=6,263,507
Timestamp: 2014-04-16 21:31:56
Document Index: 522546858

Matched Legal Cases: ['art 3', 'art 6', 'arts 3', 'art 3', 'art 6', 'art 3', 'art 6']

Patent US5645590 - Pivot device between parts of an orthopedic aid - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe invention relates to a device producing a stance flexion. This goal is achieved according to the invention by virtue of the fact that in the initial position of the multi-element joint system one element (joint element) can execute two movements with respect to the other elements (joint elements)...http://www.google.com/patents/US5645590?utm_source=gb-gplus-sharePatent US5645590 - Pivot device between parts of an orthopedic aidAdvanced Patent SearchPublication numberUS5645590 APublication typeGrantApplication numberUS 08/454,691Publication dateJul 8, 1997Filing dateMay 31, 1995Priority dateNov 25, 1994Fee statusPaidAlso published asCN1123133A, CN1158980C, DE59509380D1, EP0713689A1, EP0713689B1, US5888236, US6187051Publication number08454691, 454691, US 5645590 A, US 5645590A, US-A-5645590, US5645590 A, US5645590AInventorsPaul Gerad van de VeenOriginal AssigneeOtto Rock Orthopadische Industrie Besitz-und Verwaltungs-Kommanditgesesll schaftExport CitationBiBTeX, EndNote, RefManPatent Citations (11), Referenced by (10), Classifications (5), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetPivot device between parts of an orthopedic aidUS 5645590 AAbstract The invention relates to a device producing a stance flexion. This goal is achieved according to the invention by virtue of the fact that in the initial position of the multi-element joint system one element (joint element) can execute two movements with respect to the other elements (joint elements) connected to it, with at least one movement, after its initiation, at least predominantly blocking the other possible movement.
I claim: 1. Pivot device for use between parts of an orthopedic aid comprising:a multi-element kinematic joint chain having at least four joint elements; rotation means connecting respective ones of said joint elements, wherein the elements connected with one another have a common rotational axis, and said rotation means are positioned parallel to one another, wherein, in a first position of said joint chain, a first element of said joint elements executes two different types of movements with respect to other elements of said joint elements connected to said first element, wherein a first type of movement of said two different types of movements, following movement of said joint chain from said first position, blocks a second type of movement of said two different types of movements; a front joint element of said joint elements pivotally connected to an upper connecting joint element of said joint elements; a lower connecting joint element of said joint elements pivotally connected to said front joint element, wherein a pivoting movement of said front joint element is limited by at least one first stop; a rear joint element of said joint elements, located adjacent said front joint element and pivotally connected to the upper connecting joint element and the lower connecting joint element, wherein when said joint chain is in said first position, the rear joint element moves in a first direction parallel to an axis of said rear joint element and pivots with respect to the lower connecting joint element; a spring element for counteracting said movement in said first direction; and at least one second stop for limiting said movement in said first direction, wherein when said joint chain moves from said first position, said rear joint element moves along said axis of said rear joint element toward said lower joint element and the pivoting movement of the rear joint element with respect to the lower connecting joint element is prevented. 2. Pivot device for use between parts of an orthopedic aid comprising:a multi-element kinematic joint chain having at least four joint elements; rotation means connecting respective ones of said joint elements, wherein the elements connected with one another have a common rotational axis, and said rotation means are positioned parallel to one another, wherein, in a first position of said joint chain, a first element of said joint elements executes two different types of movements with respect to other elements of said joint elements connected to said first element, wherein a first type of movement of said two different types of movements, following movement of said joint chain from said first position, blocks a second type of movement of said two different types of movements, said device further comprising an upper element of said joint elements pivotally connected to said first element and a lower element of said joint elements pivotally connected to said first element, wherein said first element comprises a rear element, wherein said first type of movement comprises translational movement of said rear element toward said lower element. 3. A device according to claim 2, further comprising means for connecting said rear member and said lower member, wherein said second type of movement comprises rotational movement of said rear member about said connecting means.
4. Pivot device for use between parts of an orthopedic aid comprising:a multi-element kinematic joint chain having at least four joint elements; rotation means connecting respective ones of said joint elements, wherein the elements connected with one another have a common rotational axis, and said rotation means are positioned parallel to one another, wherein, in a first position of said joint chain, a first element of said joint elements executes two different types of movements with respect to other elements of said joint elements connected to said first element, wherein a first type of movement of said two different types of movements, following movement of said joint chain from said first position, blocks a second type of movement of said two different types of movements, said device further comprising an upper element of said joint elements pivotally connected to said first element and a lower element of said joint elements pivotally connected to said first element, wherein said first element comprises a rear element; and biasing means for biasing said rear element in a direction toward said upper element Description
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION FIG. 1 shows a prosthetic knee joint 1, a first part 3 connected with an artificial upper leg 2, and a lower part 6 connected with an artificial lower leg 4 with foot 5. The prosthetic knee joint 1 also includes a kinematic joint chain, described below, to which parts 3 and 6 belong.
A guide block 15 is connected with rotational axis 11 with articulation, in which block rear joint element 14 is slidably guided. Between block 15 and a bead 16 provided on joint element 14 a compression spring 17 is provided. This compression spring presses joint element 14 upward in such fashion that, as a result, a resting position of upper part 3 with respect to lower part 6 is determined. In this unloaded resting state shown schematically in FIG. 2, the upper part 3 is freely pivotable with respect to lower part 6. As an example, rotated positions of the rotational axes (pivot joints) 10 and 8 are represented by broken lines and labeled (in FIG. 3) 10' and 8', respectively.
FIGS. 14, 15, 16; 17, 18, 19; 20, 21, 22; and 23, 24, 25 show four different prosthetic knee joints 501, 601, 701, and 801 in three different positions, namely in the starting position, in the position after "movement 1" or the "swing flexion", and in the position after "movement 2" or "stance flexion."
BRIEF DESCRIPTION OF THE DRAWINGS Additional features of the invention will be explained with reference to the embodiments of the invention shown in the following figures, but is not limited to them.
FIG. 13 is a schematic perspective view showing an additional embodiment of the present invention.
By a suitable choice of the geometry of the multi-rod mechanism, it is also possible to ensure that the virtual point of rotation of a stepping movement is located such that the prosthesis or orthesis can be brought into a forwardly pivoting movement more simply in comparison to a single-axis mechanism. The great stability to be achieved at the beginning of a stepping movement, the easily conferred backward swinging movement, and the possibility of finding a good compromise between these two properties in a simple fashion make the multi-rod mechanism suitable simply for replacement or for reinforcement of a joint function.
An important requirement for a kinematic multi-rod mechanism in such applications is that it have an initial deflecting bend under load, as for example the human knee joint also does under load. The cushioning effect of this initial deflecting bending of the joint under loading of the leg prevents a jerky gait which can be uncomfortable for the user and even painful with time. The initial bending of the joint also prevents a limitation of the vertical movement of the center of gravity of the body so that the energy required for walking remains limited. This knee bending is referred to as "stance flexion."
They do not exhibit the properties described at all.
They possess the described properties only to a slight extent. This is the case when the stance flexion that occurs in practice is no greater than 3 of stance flexion to be completely realized.
They produce the described properties by using a multi-element joint system with two degrees of freedom, both of which can be understood as the above mentioned pivoting movement of the mechanism, with the movement taking place according to a single degree of freedom against the spring force of an elastic element and with the two degrees of freedom influencing one another mutually, but nevertheless being independent of one another. These mechanisms have the disadvantage that the exchange of stored spring energy between these degrees of freedom is always possible, and this is perceived by the user as an extremely unpleasant effect so that additional means, for example dissipative elements, are required in order to convert this spring energy into heat by dissipation.
SUMMARY OF THE INVENTION The goal of the invention is to provide a device that provides a stance flexion that is so large that the advantages of stance flexion as possessed by the natural knee joint are fully realized.
It must be emphasized that the term "movement" used here must be understood either as pure rotation or pure translation or as any fixed combination of a rotation with a translation. In other words, the term "movement" describes/comprises the movement according to a single typical degree of freedom of movement of the joint mechanism.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS2599297 *Oct 28, 1949Jun 3, 1952Isaac TousonArtificial limbUS4005496 *Jun 13, 1975Feb 1, 1977Hosmer/Dorrance CorporationProsthetic knee jointUS5181931 *Jan 28, 1991Jan 26, 1993Otto Bock Orthopaedische Industrie Besitz- und Verwaltungs-Kommanditgesel lschaftSwivel connection between two parts of an orthopedic technical aidUS5314498 *Mar 28, 1991May 24, 1994Gramnaes FinnArtificial toggle jointAU188849A * Title not availableCH274375A * Title not availableDE735844C *Apr 7, 1937May 28, 1943Georg GreissingerKniegelenk fuer KunstbeineDE2841999A1 *Sep 27, 1978Apr 17, 1980Bock Orthopaed IndKuenstliches kniegelenkDE4325655A1 *Jul 30, 1993Feb 2, 1995Kai Henning SpandauSelbstt�tig sperrendes Gelenk, insbesondere OrthesengelenkEP0439028A2 *Jan 11, 1991Jul 31, 1991Otto Bock Orthop�dische Industrie Besitz- und Verwaltungs-KommanditgesellschaftSwivelling connection between two parts of an orthopaedic deviceSU1138151A1 * Title not available* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6471664Mar 15, 2000Oct 29, 2002Becker Orthopedic Appliance CompanyKnee joint and methodUS7198071May 6, 2005Apr 3, 2007�ssur Engineering, Inc.Systems and methods of loading fluid in a prosthetic kneeUS7279009Aug 22, 2003Oct 9, 2007Massachusetts Institute Of TechnologySpeed-adaptive and patient-adaptive prosthetic kneeUS7455696May 6, 2005Nov 25, 2008�ssur hfDynamic seals for a prosthetic kneeUS7691154May 6, 2005Apr 6, 2010�ssur hfSystems and methods of controlling pressure within a prosthetic kneeUS7799091Oct 8, 2007Sep 21, 2010Massachusetts Institute Of TechnologyControl system for prosthetic kneeUS8617254Jan 22, 2010Dec 31, 2013Ossur HfControl system and method for a prosthetic kneeUS20120150318 *Dec 9, 2011Jun 14, 2012Pierre ChablozProsthesis for a lower limbUSRE39961Apr 29, 2003Dec 25, 2007�ssur hfComputer controlled hydraulic resistance device for a prosthesis and other apparatusUSRE42903Jul 20, 2006Nov 8, 2011Massachusetts Institute Of TechnologyElectronically controlled prosthetic knee* Cited by examinerClassifications U.S. Classification623/44, 623/46International ClassificationA61F2/64Cooperative ClassificationA61F2/644European ClassificationA61F2/64P2Legal EventsDateCodeEventDescriptionJul 2, 2009SULPSurcharge for late paymentYear of fee payment: 11Jul 2, 2009FPAYFee paymentYear of fee payment: 12Jan 13, 2009REMIMaintenance fee reminder mailedDec 27, 2004FPAYFee paymentYear of fee payment: 8Dec 6, 2000FPAYFee paymentYear of fee payment: 4May 31, 1995ASAssignmentOwner name: OTTO BOCK ORTHOPADISCHE INDUSTRIE BESITZ UND VERWAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VAN DE VEEN, PAUL GERAD;REEL/FRAME:007529/0672Effective date: 19950509RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google