FR2640499A1 - Novel prosthetic foot structure - Google Patents
Novel prosthetic foot structure Download PDFInfo
- Publication number
- FR2640499A1 FR2640499A1 FR8816573A FR8816573A FR2640499A1 FR 2640499 A1 FR2640499 A1 FR 2640499A1 FR 8816573 A FR8816573 A FR 8816573A FR 8816573 A FR8816573 A FR 8816573A FR 2640499 A1 FR2640499 A1 FR 2640499A1
- Authority
- FR
- France
- Prior art keywords
- frame
- rod
- housing
- structure according
- inner sole
- 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- Withdrawn
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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
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/66—Feet; Ankle joints
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/76—Means for assembling, fitting or testing prostheses, e.g. for measuring or balancing, e.g. alignment means
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30448—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30492—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking pin
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5003—Prostheses not implantable in the body having damping means, e.g. shock absorbers
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5007—Prostheses not implantable in the body having elastic means different from springs, e.g. including an elastomeric insert
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/5044—Designing or manufacturing processes
- A61F2002/5055—Reinforcing prostheses by embedding particles or fibres during moulding or dipping, e.g. carbon fibre composites
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/66—Feet; Ankle joints
- A61F2002/6614—Feet
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/66—Feet; Ankle joints
- A61F2002/6614—Feet
- A61F2002/6657—Feet having a plate-like or strip-like spring element, e.g. an energy-storing cantilever spring keel
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/66—Feet; Ankle joints
- A61F2002/6614—Feet
- A61F2002/6657—Feet having a plate-like or strip-like spring element, e.g. an energy-storing cantilever spring keel
- A61F2002/6671—C-shaped
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
Abstract
Description
Nouvelle structure de pied prothétipue. New prosthetic foot structure.
La présente invention concerne une nouvelle structure de pied prothétique, destinée à servir d'assise à une prothèse de jambe. The present invention relates to a new prosthetic foot structure, intended to serve as a seat for a leg prosthesis.
De tels pieds prothétiques doivent limiter dans toute la mesure du possible la fatigue causée à l'amputé au cours de la marche et l'on a déjà proposé dans ce but diverses structures, qui assistent l'utilisateur en exerçant un effet de ressort à chaque pas effectué avec sa prothèse. Such prosthetic feet must limit as much as possible the fatigue caused to the amputee during walking and various structures have already been proposed for this purpose, which assist the user by exerting a spring effect at each step. not performed with his prosthesis.
C'est à ce type de structures que s'intéresse la présente invention, et elle vise à leur conférer, outre une aptitude à une flexion élastique longitudinale, une possibilité de flexion latérale et un certain degré de liberté en rotation par rapport à la prothèse de jambe, afin de pouvoir compenser éventuellement pour l'utilisateur les inégalités du sol et lui éviter ainsi des faux mouvements. This type of structure is the subject of the present invention, and it aims to confer on them, in addition to an ability to longitudinal elastic bending, a possibility of lateral bending and a certain degree of freedom in rotation relative to the prosthesis. leg, in order to be able to possibly compensate for the unevenness of the floor and thus avoid false movements.
A cet effet, l'invention a pour objet une nouvelle structure de pied prothétique comprenant une semelle interne dont elle est solidaire et sur laquelle prend appui une armature formant ressort, cette armature supportant elle-m#me une prothèse de jambe, cette structure étant caractérisée en ce que l'armature formant ressort comporte une partie inclinée en direction de la partie avant de la semelle interne, son extrémité arrière étant surélevée par rapport à la semelle interne et comportant un logement destiné à recevoir l'extrémité d'une tige de la prothèse de jambe, tandis que la partie intermédiaire entre l'extrémité arrière et l'extrémité avant de l'armature présente une largeur moindre pour former un bras de levier par rapport auquel déborde latéralement la partie comportant un logement, en vue de permettre un débattement latéral éventuel de la tige de la prothèse par rapport à la structure du pied prothétique. To this end, the invention relates to a new prosthetic foot structure comprising an internal sole of which it is integral and on which rests a frame forming a spring, this frame itself supporting a prosthetic leg, this structure being characterized in that the spring reinforcement comprises a part inclined towards the front part of the inner sole, its rear end being raised relative to the inner sole and comprising a housing intended to receive the end of a rod the leg prosthesis, while the intermediate part between the rear end and the front end of the frame has a narrower width to form a lever arm with respect to which the part comprising a housing extends laterally, in order to allow a possible lateral movement of the prosthesis stem relative to the structure of the prosthetic foot.
Avantageusement, la partie de largeur moindre de l'armature formant bras de levier comportera des ailes latérales redressées verticalement par rapport à sa partie centrale et se raccordant à la partie arrière dans laquelle est ménagé le logement pour l'extrémité de la tige de la prothèse de jambe. Advantageously, the portion of lesser width of the armature forming a lever arm will have lateral wings straightened vertically with respect to its central portion and connecting to the rear portion in which the housing for the end of the prosthesis stem is formed. leg.
La partie formant armature pourra comprendre une urique branche s'étendant suivant la direction longitudinale de la semelle interne et collée par son extrémité avant contre cette semelle. La partie de l'armature collée contre l'armature interne et la partie comportant le logement pour l'extrémité de la tige de la prothèse de jambe loureront se raccorder directement par une partie inclinée. Le logement de l'extrémité de la tige de la prothèse de jambe pourra aussi être décalé verticalement par rapport à l'extrémité arrière de cette partie inclinée. The part forming the reinforcement may include a branch uric extending in the longitudinal direction of the inner sole and glued by its front end against this sole. The part of the frame glued against the internal frame and the part comprising the housing for the end of the rod of the heavy leg prosthesis will be connected directly by an inclined part. The housing of the end of the stem of the leg prosthesis may also be offset vertically relative to the rear end of this inclined part.
La partie formant armature pourra aussi avoir, en coupe verticale par le plan longitudinal médian de la semelle interne, une section en C et être collée par la branche inférieure du C contre cette semelle. The part forming the reinforcement may also have, in vertical section through the median longitudinal plane of the inner sole, a section in C and be glued by the lower branch of the C against this sole.
Avantageusement, tant la semelle interne que l'armature formant ressort seront en une résine stratifiée armée, notamment en une résine thermodurcissable renforcée par des fibres de carbone, d'aramide ou tout autre matériau permettant un effet de ressort, tissées ou tressées, permettant de réaliser aisément ces organes à la forme désirée par des moyens connus dans la technique. Advantageously, both the insole and the spring-forming reinforcement will be made of a reinforced laminated resin, in particular of a thermosetting resin reinforced with carbon fibers, aramid or any other material allowing a spring effect, woven or braided, making it possible to easily make these bodies to the desired shape by means known in the art.
De préférence, une masse d'une matière plastique expansée formant amortisseur sera interposée entre l'extrémité arrière de la partie inclinée de l'armature formant ressort et la semelle interne ou un élément appliqué contre cette semelle interne. Preferably, a mass of an expanded plastic material forming a shock absorber will be interposed between the rear end of the inclined part of the frame forming a spring and the internal sole or an element applied against this internal sole.
D'autres caractéristiques et avantages de l'invention apparaitront dans la description détaillée qui va suivre de diverses formes de réalisation, données à titre d'exemples non limitatifs. Dans cette description, on se référera aux dessins annexés, sur lesquels:
La figure 1 est une coupe verticale d'un pied prothétique équipé d'une structure conforme à l'invention;
La figure 2 est une vue de dessus de la structure et de la semelle du pied prothétique de la figure 1
La figure 3 est une vue en perspective de l'armature de cette structure
La figure 4 est une vue de l'avant de cette armature;;
Les figures 5 à 8 sont des vues analogues aux figures 1 à 4 d'une autre forme de réalisation de la structure du pied prothétique de l'invention
Les figures 9 à 12 sont des vues analogues aux figures 1 à 4 d'une troisième forme de réalisation de l'invention ;
La figure 13 est une vue supérieure de la partie arrière de l'armature d'une variante de mise en oeuvre de l'invention ~
Les figures 14a et 14b illustrent schématiquement deux systèmes de réglage en position utilisées dans la forme de réalisation de la figure 13
La figure 15 est une coupe verticale de la partie arrière de l'armature d'une autre forme variante de l'invention
La figure 16 est une vue supérieure de la forme de réalisation de la figure 15.Other characteristics and advantages of the invention will appear in the detailed description which follows of various embodiments, given by way of nonlimiting examples. In this description, reference will be made to the appended drawings, in which:
Figure 1 is a vertical section of a prosthetic foot equipped with a structure according to the invention;
Figure 2 is a top view of the structure and sole of the prosthetic foot of Figure 1
Figure 3 is a perspective view of the frame of this structure
Figure 4 is a front view of this frame;
Figures 5 to 8 are views similar to Figures 1 to 4 of another embodiment of the prosthetic foot structure of the invention
Figures 9 to 12 are views similar to Figures 1 to 4 of a third embodiment of the invention;
Figure 13 is a top view of the rear part of the frame of an alternative embodiment of the invention ~
Figures 14a and 14b schematically illustrate two position adjustment systems used in the embodiment of Figure 13
Figure 15 is a vertical section of the rear part of the frame of another variant form of the invention
Figure 16 is a top view of the embodiment of Figure 15.
On se réfèrera d'abord à la forme de réalisation des figures 1 à 4, où la structure prothétique conforme à l'invention comprend:
- d'une part, une semelle interne 1, par exemple en composite de carbone, appliquée et collée sur la face supérieure de la semelle en élastomère 2 proprement dite du pied prothétique 3;
- d'autre part, une armature 4 formant ressort, par exemple en composite de carbone, sur laquelle prend appui et dont est solidaire l'extrémité inférieure d'une tige tubulaire 5 d'une prothèse de jambe non représentée.Reference will first be made to the embodiment of FIGS. 1 to 4, where the prosthetic structure according to the invention comprises:
- On the one hand, an inner sole 1, for example made of carbon composite, applied and bonded to the upper face of the elastomer sole 2 proper of the prosthetic foot 3;
- On the other hand, a frame 4 forming a spring, for example made of carbon composite, on which is supported and of which is secured the lower end of a tubular rod 5 of a leg prosthesis not shown.
L'armature 4 a une section en C et sa branche inférieure 4a prend appui et est collée contre la face supérieure de la semelle 1. Sa branche supérieure 4b, inclinée en direction de la partie avant de la semelle 5, comporte, à son extrémité arrière 4c, un logement cylindrique 6, dans lequel est engagée et collée l'extrémité de la tige 5. Une vis 7, vissée dans un taraudage tranversal du logement 6, permet de bloquer provisoirement la tige 5 avant collage, et des goupilles 8, disposées radialement et engagées dans des évidements transversaux du logement de la partie 4c, la verrouillent en position. The frame 4 has a section in C and its lower branch 4a is supported and is glued against the upper face of the sole 1. Its upper branch 4b, inclined towards the front part of the sole 5, comprises, at its end rear 4c, a cylindrical housing 6, in which the end of the rod 5 is engaged and glued. A screw 7, screwed into a transverse internal thread of the housing 6, makes it possible to temporarily block the rod 5 before bonding, and pins 8, arranged radially and engaged in transverse recesses in the housing of part 4c, lock it in position.
La largeur de la partie centrale de la branche supérieure 4b de l'armature est considérablement plus réduite que celle de son extrémité avant et que la dimension transversale correspondante de la partie 4c dans laquelle est ménagé le logement 6. Elle constitue ainsi un véritable bras de levier, qui travaille en flexion verticale, sous la sollicitation de la tige 5 (flèches F1 de la figure 3), et exerce ainsi un effet de ressort sur cette tige lorsqu'elle ne sollicite plus l'armature. The width of the central part of the upper branch 4b of the frame is considerably smaller than that of its front end and that the corresponding transverse dimension of the part 4c in which the housing 6 is formed. It thus constitutes a real arm of lever, which works in vertical bending, under the stress of the rod 5 (arrows F1 of FIG. 3), and thus exerts a spring effect on this rod when it no longer stresses the armature.
La partie de section réduite de la branche supérieure 4b de armature comporte des ailes latérales 4d (figure 3) redressées verticalement par rapport à sa portion centrale et attenantes à la partie arrière 4c. The reduced section portion of the upper arm 4b of the armature comprises lateral wings 4d (FIG. 3) straightened vertically relative to its central portion and adjoining the rear portion 4c.
Comme on le voit sur la figure 4, cette partie 4c déborde latéralement par rapport à la portion centrale de la branche supérieure 4d de l'armature et elle peut ainsi, par un mouvement de flexion latérale, compenser les inégalités du terrain sur lequel repose le pied prothétique et éviter ainsi à l'utilisateur tout faux mouvement dont les conséquences pourraient être sérieuses ou douloureuses. As can be seen in FIG. 4, this part 4c projects laterally with respect to the central portion of the upper branch 4d of the frame and it can thus, by a lateral flexion movement, compensate for the unevenness of the ground on which the base rests. prosthetic foot and thus prevent the user from any false movement whose consequences could be serious or painful.
Une torsion latérale légère du bras de levier 4b, avec rappel élastique, autorise également une rotation limitée de la tige 5. A slight lateral twist of the lever arm 4b, with elastic return, also allows limited rotation of the rod 5.
Une masse de matière plastique expansée 9, interposée entre la partie arrière 4c et la bande inférieure 4a de l'armature 4 fait office d'amortisseur. La socDlesse de la matière expansée sera choisie en fonction de la force de ressort de l'armature 4 et suivant l'effet désiré. A mass of expanded plastic material 9, interposed between the rear part 4c and the lower strip 4a of the frame 4 acts as a shock absorber. The base of the expanded material will be chosen according to the spring force of the frame 4 and according to the desired effect.
Dans la forme de réalisation de la figure 5, la structure conforme à l'invention comprend également une semelle interne 11, appliquée et collée contre la face supérieure de la semelle en élastomère 12 du pied prothétique 13. L'armature 14 n'a plus une section verticale en C, mais comprend une partie avant 14a, appliquée et collée contre la partie avant de la semelle interne 11, une partie intermédiaire inclinée 14b et une partie arrière 14c se raccordant directement à la partie inclinée et supportant la tige 15 d'une prothèse de jambe, dont l'extrémité vient se loger dans un évidement cylindrique 16 de la partie 14c. In the embodiment of Figure 5, the structure according to the invention also comprises an inner sole 11, applied and glued against the upper face of the elastomer sole 12 of the prosthetic foot 13. The frame 14 no longer has a vertical section in C, but comprises a front part 14a, applied and glued against the front part of the insole 11, an inclined intermediate part 14b and a rear part 14c which connects directly to the inclined part and supports the rod 15 of a leg prosthesis, the end of which is housed in a cylindrical recess 16 of the part 14c.
Comme dans la forme de réalisation décrite en relation avec les figures 1 à 4, la partie centrale 14b de l'armature 14 a une largeur considérablement réduite par rapport à la partie avant 14a et à la partie arrière l4c, qui déborde ainsi latéralement, et elle comporte des ailes latérales 14b redressées verticalement (voir figure 7), attenantes à la partie 14c. La partie centrale 14b fait ainsi office de bras de levier et s'affaisse à la marche pour exercer un effet de ressort lorsque la partie arrière 14c n'est plus sollicitée par la tige 15. Cet effet de ressort est nettement plus accusé que dans le cas de la forme de réalisation des figures 1 à 4. As in the embodiment described in connection with FIGS. 1 to 4, the central part 14b of the frame 14 has a considerably reduced width compared to the front part 14a and to the rear part 14c, which thus projects laterally, and it has side wings 14b straightened vertically (see Figure 7), adjoining the part 14c. The central part 14b thus acts as a lever arm and collapses when walking to exert a spring effect when the rear part 14c is no longer stressed by the rod 15. This spring effect is markedly more pronounced than in the case of the embodiment of FIGS. 1 to 4.
Comme dans celle-ci, en revanche, la partie arrière 14c déborde latéralement par rapport à la partie centrale, ce qui autorise une légère flexion latérale. Comme précédemment, également, une torsion latérale du bras de levier autorise une légère rotation de la tige 5 en cas de nécessité. As in this one, on the other hand, the rear part 14c projects laterally with respect to the central part, which allows a slight lateral bending. As before, also, a lateral twist of the lever arm allows a slight rotation of the rod 5 if necessary.
Enfin, comme précédemment, la semelle interne 11 et l'armature 14 peuvent avantageusement être réalisées en un composite de fibres de carbone et une masse 17 de matière plastique expansée est interposée entre la partie arrière 14c de l'armature 14 et la semelle interne 11. Finally, as before, the insole 11 and the frame 14 can advantageously be made of a composite of carbon fibers and a mass 17 of expanded plastic material is interposed between the rear part 14c of the frame 14 and the insole 11 .
Dans la forme de réalisation des figures 9 à 12, on retrouve une semelle interne 21, appliquée et fixée sur la face supérieure d'une semelle en élastomère 22 du pied prothétique 23. L'armature 24 a une forme générale proche de celle de la forme de réalisation précédente et elle comporte également une partie avant 24a appliquée et collée contre la partie avant de la face supérieure de la semelle interne 21, une partie inclinée 24b et une partie arrière 24c. Celle-ci se prolonge toutefois verticalement par une partie 24d supportant une partie 24e dans laquelle est ménagée un évidement cylindrique 26, destiné à recevoir une tige tubulaire 25 d'une prothèse.Comme précédemment, les parties 24b, 24c et 24d ont une largeur largement réduite par rapport à la partie avant 24a et elles présentent es ailes latérales redressées verticalement, par rapport à leur portion centrale, qui se raccordent directement à la partie 24e. Celle-ci déborde latéralement par rapport aux parties 24b, 24c et 24d, qui forment un bras de levier, et l'on retrouve, comme précédemment, un effet de ressort de ce bras de levier, qui assiste le pas de l'utilisateur, une possibilité de flexion latérale de la partie 24e supportant la tige 25 de la prothèse de jambe et une possibilité de rotation de celle-ci. La surélévation de la partie 24e, qui peut, comme représenté, être disposée au-dessus du pied prothétique, autorise cependant une possibilité de flexion latérale accrue par rapport à la forme de réalisation des figures 5 à 8. In the embodiment of Figures 9 to 12, there is an inner sole 21, applied and fixed on the upper face of an elastomer sole 22 of the prosthetic foot 23. The frame 24 has a general shape close to that of the previous embodiment and it also comprises a front part 24a applied and glued against the front part of the upper face of the inner sole 21, an inclined part 24b and a rear part 24c. However, this is extended vertically by a part 24d supporting a part 24e in which is formed a cylindrical recess 26, intended to receive a tubular rod 25 of a prosthesis. As previously, the parts 24b, 24c and 24d have a width that is largely reduced relative to the front part 24a and they have side wings vertically straightened, relative to their central portion, which connect directly to the part 24e. This extends laterally with respect to the parts 24b, 24c and 24d, which form a lever arm, and there is, as before, a spring effect of this lever arm, which assists the step of the user, a possibility of lateral flexion of the part 24e supporting the rod 25 of the leg prosthesis and a possibility of rotation of the latter. The elevation of the part 24e, which can, as shown, be arranged above the prosthetic foot, however allows a possibility of increased lateral flexion compared to the embodiment of FIGS. 5 to 8.
Dans cette forme de mise en oeuvre, également, une masse 27 de matière plastique expansée formant armortisseur est interposée entre les parties 24c, 24d de l'armature et la semelle interne 21. In this embodiment, also, a mass 27 of expanded plastic material forming a shock absorber is interposed between the parts 24c, 24d of the frame and the internal sole 21.
Dans toutes les variantes qui ont été décrites cidessus, il importe de régler parfaitement la position de la prothèse de jambe par rapport à la structure de pied prothétique conforme à l'invention. Les figures 13, 14a et 14b, d'une part, 15 et 16, d'autre part, illustrent de tels moyens de réglage. In all the variants which have been described above, it is important to perfectly adjust the position of the leg prosthesis relative to the prosthetic foot structure according to the invention. Figures 13, 14a and 14b, on the one hand, 15 and 16, on the other hand, illustrate such adjustment means.
Dans la forme de mise en oeuvre des figures 13, 14a et 14b, la partie arrière 34c, débordant latéralement par rapport à la partie 34b formant bras de levier de l'armature 34, présente un évidement 36 à section horizontale oblongue, apte à recevoir la tige tubulaire 35 de la prothèse et dans lequel des cales en forme de tube 39, disposées de part et d'autre de la tige 35 (figure 14a) ou d'un même côté de celle-ci (figures 13 et 14b) permettent de caler latéralement la tige 35 dans son logement 36 et d'effectuer un réglage antéro-postérieur précis de cette tige. Les cales 39 et la tige 35 sont collées les unes aux autres dans leur logement et sont bloquées en position provisoire par la vis 37, vissée dans un taraudage transversal de la partie 34c. In the embodiment of Figures 13, 14a and 14b, the rear part 34c, projecting laterally with respect to the part 34b forming the lever arm of the frame 34, has a recess 36 of oblong horizontal section, suitable for receiving the tubular rod 35 of the prosthesis and in which tube-shaped wedges 39, arranged on either side of the rod 35 (FIG. 14a) or on the same side of it (FIGS. 13 and 14b) allow laterally wedge the rod 35 in its housing 36 and perform a precise anteroposterior adjustment of this rod. The shims 39 and the rod 35 are glued to each other in their housing and are locked in provisional position by the screw 37, screwed into a transverse thread of the part 34c.
Les Figures 15 et 16 illustrent une autre possibilité de réglage, par l'utilisateur i-même, de la position verticale de la tige 45 de la prothèse de jambe par rapport à la partie arrière 44c de l'armature 44 de la structure conforme à l'invention. Dans cette forme de réalisation, une pièce 50, de forme complémentaire de l'évidement interne de la tige 45, est montée pivotante, dans un logement 46 de la partie 44c, autour d'un axe transversal horizontal 51. Des vis 52, perpendiculaires à l'axe 51 et disposées symétriquement par rapport à celuici, sont vissées dans des taraudages 53, ménagés dans la partie 44c et débouchant dans le logement 46 où ils viennent en butée contre la pièce 50. Ils permettent ainsi à l'utilisateur de bloquer lui-même cette pièce, après un réglage précis de la position de la tige 45 en fonction de la hauteur du talon prothétique. Figures 15 and 16 illustrate another possibility of adjustment, by the user myself, of the vertical position of the rod 45 of the leg prosthesis relative to the rear part 44c of the frame 44 of the structure conforming to the invention. In this embodiment, a part 50, of complementary shape to the internal recess of the rod 45, is pivotally mounted, in a housing 46 of the part 44c, around a horizontal transverse axis 51. Screws 52, perpendicular to the axis 51 and arranged symmetrically with respect thereto, are screwed into threads 53, formed in the part 44c and opening into the housing 46 where they abut against the part 50. They thus allow the user to block itself this part, after a precise adjustment of the position of the rod 45 as a function of the height of the prosthetic heel.
L'invention apporte donc des perfectionnements appréciables et faciles à mettre en oeuvre aux pieds prothétiques de la technique, en vue d'assurer à leurs utilisateurs un confort accru et une marche plus aisée. The invention therefore provides appreciable improvements which are easy to implement with prosthetic feet of the technique, with a view to ensuring their users increased comfort and easier walking.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8816573A FR2640499A1 (en) | 1988-12-15 | 1988-12-15 | Novel prosthetic foot structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8816573A FR2640499A1 (en) | 1988-12-15 | 1988-12-15 | Novel prosthetic foot structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2640499A1 true FR2640499A1 (en) | 1990-06-22 |
Family
ID=9372999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8816573A Withdrawn FR2640499A1 (en) | 1988-12-15 | 1988-12-15 | Novel prosthetic foot structure |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2640499A1 (en) |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116385A (en) * | 1991-05-06 | 1992-05-26 | Universite De Montreal | Medio-lateral control enhancing, cantilever-spring type prosthetic foot |
| EP0487852A1 (en) * | 1990-11-29 | 1992-06-03 | Otto Bock Orthopädische Industrie Besitz- und Verwaltungs-Kommanditgesellschaft | Jointless prosthetic foot |
| FR2685194A1 (en) * | 1992-03-20 | 1993-06-25 | Phillips Van Lehn | Foot prosthesis |
| US5258039A (en) * | 1991-11-15 | 1993-11-02 | The National University Of Singapore | Energy storing composite prosthetic foot |
| US5376140A (en) * | 1992-01-03 | 1994-12-27 | Ryan; Michael W. | Prosthetic foot |
| EP0648479A1 (en) * | 1993-10-14 | 1995-04-19 | IPOS GMBH & CO. KG. | Ankle spring module for leg prosthesis or artificial foot |
| WO1996004869A1 (en) * | 1994-08-15 | 1996-02-22 | Phillips L Van | Prosthesis with resilient ankle block |
| FR2734151A1 (en) * | 1995-05-15 | 1996-11-22 | Corima | Reactive elastic construction for artificial foot prosthesis |
| US5593456A (en) * | 1994-05-17 | 1997-01-14 | Crp, Inc. | Foot and leg prosthesis and method of making same |
| FR2745488A1 (en) * | 1996-03-04 | 1997-09-05 | Corima | REACTIVE FOOT PROSTHESIS |
| US5695526A (en) * | 1993-10-12 | 1997-12-09 | Wilson Michael T | One-piece mechanically differentiated prosthetic foot and associated ankle joint with syme modification |
| DE19717298C1 (en) * | 1997-04-24 | 1998-05-07 | Bock Orthopaed Ind | Spring-elastic foot prosthesis insert |
| US5899944A (en) * | 1991-02-28 | 1999-05-04 | Phillips; Van L. | Prosthetic foot incorporating compressible members |
| US6099572A (en) * | 1997-04-24 | 2000-08-08 | Otto Bock Orthopaedishche Industrie Besitz- Und Verwaltungs- Kommandit- Gesellschaft | Resilient foot insert |
| US6165227A (en) * | 1989-04-13 | 2000-12-26 | Phillips; Van L. | Attachment construction for prosthesis |
| US6206934B1 (en) | 1998-04-10 | 2001-03-27 | Flex-Foot, Inc. | Ankle block with spring inserts |
| US6350286B1 (en) * | 1996-02-16 | 2002-02-26 | Seattle Orthopedic Group, Inc. | Prosthetic ankle and walking system |
| WO2002078566A2 (en) * | 2001-03-30 | 2002-10-10 | Townsend Barry W | Prosthetic foot with tunable performance |
| US6511514B1 (en) * | 2000-08-16 | 2003-01-28 | Michael T. Wilson | Dynamic response prosthetic foot with multiaxial ankle |
| US6767370B1 (en) | 1998-04-11 | 2004-07-27 | Otto Bock Healthcare Gmbh | Foot insert for an artificial foot |
| US6899737B1 (en) | 1998-04-10 | 2005-05-31 | Van L. Phillips | Foot prosthesis having cushioned ankle |
| US7063727B2 (en) | 2000-10-26 | 2006-06-20 | Van L. Phillips | Foot prosthesis having cushioned ankle |
| US7871443B2 (en) | 2006-02-28 | 2011-01-18 | Wilson Michael T | Prosthetic foot with composite heel |
| US7955399B2 (en) | 2004-04-01 | 2011-06-07 | Bioquest Prosthetics, Llc | Prosthetic foot with tunable performance |
| US8070829B2 (en) | 2003-09-30 | 2011-12-06 | Bioquest Prosthetics Llc | Prosthetic foot with tunable performance |
| US8118879B2 (en) | 2008-03-14 | 2012-02-21 | Wilson Michael T | Prosthetic foot with flexible ankle portion |
| US8236062B2 (en) | 2001-03-30 | 2012-08-07 | Bioquest Prosthetics Llc | Prosthetic foot with tunable performance |
| US8574314B2 (en) | 2003-09-30 | 2013-11-05 | Bioquest Prosthetics Llc | Resilient prosthetic and orthotic components which incorporate a plurality of sagittally oriented struts |
| US20140012397A1 (en) * | 2011-03-23 | 2014-01-09 | Otto Bock Healthcare Gmbh | Prosthetic foot insert and prosthetic foot |
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| US1495588A (en) * | 1921-02-05 | 1924-05-27 | Habermann Alfred | Artificial foot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165227A (en) * | 1989-04-13 | 2000-12-26 | Phillips; Van L. | Attachment construction for prosthesis |
| EP0487852A1 (en) * | 1990-11-29 | 1992-06-03 | Otto Bock Orthopädische Industrie Besitz- und Verwaltungs-Kommanditgesellschaft | Jointless prosthetic foot |
| US5899944A (en) * | 1991-02-28 | 1999-05-04 | Phillips; Van L. | Prosthetic foot incorporating compressible members |
| US5116385A (en) * | 1991-05-06 | 1992-05-26 | Universite De Montreal | Medio-lateral control enhancing, cantilever-spring type prosthetic foot |
| US5258039A (en) * | 1991-11-15 | 1993-11-02 | The National University Of Singapore | Energy storing composite prosthetic foot |
| US5376140A (en) * | 1992-01-03 | 1994-12-27 | Ryan; Michael W. | Prosthetic foot |
| FR2685194A1 (en) * | 1992-03-20 | 1993-06-25 | Phillips Van Lehn | Foot prosthesis |
| US5695526A (en) * | 1993-10-12 | 1997-12-09 | Wilson Michael T | One-piece mechanically differentiated prosthetic foot and associated ankle joint with syme modification |
| EP0648479A1 (en) * | 1993-10-14 | 1995-04-19 | IPOS GMBH & CO. KG. | Ankle spring module for leg prosthesis or artificial foot |
| US5593456A (en) * | 1994-05-17 | 1997-01-14 | Crp, Inc. | Foot and leg prosthesis and method of making same |
| US5728177A (en) * | 1994-08-15 | 1998-03-17 | Flex-Foot, Inc. | Prosthesis with foam block ankle |
| US5993488A (en) * | 1994-08-15 | 1999-11-30 | Phillips; Van L. | Prosthesis with resilient ankle block |
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| FR2734151A1 (en) * | 1995-05-15 | 1996-11-22 | Corima | Reactive elastic construction for artificial foot prosthesis |
| US6350286B1 (en) * | 1996-02-16 | 2002-02-26 | Seattle Orthopedic Group, Inc. | Prosthetic ankle and walking system |
| FR2745488A1 (en) * | 1996-03-04 | 1997-09-05 | Corima | REACTIVE FOOT PROSTHESIS |
| EP0793949A1 (en) | 1996-03-04 | 1997-09-10 | Otto Bock Orthopädische Industrie Besitz- und Verwaltungs-Kommanditgesellschaft | Jointless artificial foot |
| US5897594A (en) * | 1996-03-04 | 1999-04-27 | Otto Bock Orthopaedische Industrie Besitz-Und | Jointless artificial foot |
| DE19717298C1 (en) * | 1997-04-24 | 1998-05-07 | Bock Orthopaed Ind | Spring-elastic foot prosthesis insert |
| US6077301A (en) * | 1997-04-24 | 2000-06-20 | Otto Bock Orthopaedische Industrie Besitz- und Verwaltungs-Kommandit-Gese llschaft | Resilient foot insert for an artificial foot |
| US6099572A (en) * | 1997-04-24 | 2000-08-08 | Otto Bock Orthopaedishche Industrie Besitz- Und Verwaltungs- Kommandit- Gesellschaft | Resilient foot insert |
| US6206934B1 (en) | 1998-04-10 | 2001-03-27 | Flex-Foot, Inc. | Ankle block with spring inserts |
| US6899737B1 (en) | 1998-04-10 | 2005-05-31 | Van L. Phillips | Foot prosthesis having cushioned ankle |
| US7879110B2 (en) | 1998-04-10 | 2011-02-01 | Ossur Hf | Foot prosthesis having cushioned ankle |
| US6280479B1 (en) | 1998-04-10 | 2001-08-28 | Flex-Foot, Inc. | Foot prosthesis having cushioned ankle |
| US6767370B1 (en) | 1998-04-11 | 2004-07-27 | Otto Bock Healthcare Gmbh | Foot insert for an artificial foot |
| US6511514B1 (en) * | 2000-08-16 | 2003-01-28 | Michael T. Wilson | Dynamic response prosthetic foot with multiaxial ankle |
| US7063727B2 (en) | 2000-10-26 | 2006-06-20 | Van L. Phillips | Foot prosthesis having cushioned ankle |
| US7708784B2 (en) | 2001-03-30 | 2010-05-04 | Bioquest Prosthetics, Llc | Prosthetic foot with tunable performance |
| US6562075B2 (en) * | 2001-03-30 | 2003-05-13 | Barry W. Townsend | Prosthetic foot with tunable performance |
| WO2002078566A3 (en) * | 2001-03-30 | 2002-11-28 | Barry W Townsend | Prosthetic foot with tunable performance |
| WO2002078566A2 (en) * | 2001-03-30 | 2002-10-10 | Townsend Barry W | Prosthetic foot with tunable performance |
| US8236062B2 (en) | 2001-03-30 | 2012-08-07 | Bioquest Prosthetics Llc | Prosthetic foot with tunable performance |
| US8070829B2 (en) | 2003-09-30 | 2011-12-06 | Bioquest Prosthetics Llc | Prosthetic foot with tunable performance |
| US8574314B2 (en) | 2003-09-30 | 2013-11-05 | Bioquest Prosthetics Llc | Resilient prosthetic and orthotic components which incorporate a plurality of sagittally oriented struts |
| US7955399B2 (en) | 2004-04-01 | 2011-06-07 | Bioquest Prosthetics, Llc | Prosthetic foot with tunable performance |
| US7871443B2 (en) | 2006-02-28 | 2011-01-18 | Wilson Michael T | Prosthetic foot with composite heel |
| US8118879B2 (en) | 2008-03-14 | 2012-02-21 | Wilson Michael T | Prosthetic foot with flexible ankle portion |
| US20140012397A1 (en) * | 2011-03-23 | 2014-01-09 | Otto Bock Healthcare Gmbh | Prosthetic foot insert and prosthetic foot |
| US10299942B2 (en) * | 2011-03-23 | 2019-05-28 | Ottobock Se & Co. Kgaa | Prosthetic foot insert and prosthetic foot |
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