FR3027795A1 - MECHANICAL FUSE FOR PATIENT CARRIER OF AN INTEGRATED OSTEO PROSTHESIS OPERATING IN ALL DIRECTIONS AND TORSION - Google Patents
MECHANICAL FUSE FOR PATIENT CARRIER OF AN INTEGRATED OSTEO PROSTHESIS OPERATING IN ALL DIRECTIONS AND TORSION Download PDFInfo
- Publication number
- FR3027795A1 FR3027795A1 FR1402508A FR1402508A FR3027795A1 FR 3027795 A1 FR3027795 A1 FR 3027795A1 FR 1402508 A FR1402508 A FR 1402508A FR 1402508 A FR1402508 A FR 1402508A FR 3027795 A1 FR3027795 A1 FR 3027795A1
- Authority
- FR
- France
- Prior art keywords
- patient
- abutment
- osteo
- prosthesis
- integrated
- 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- Withdrawn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
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
- A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
-
- 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
- A61F2/68—Operating or control means
- A61F2002/6845—Clutches
-
- 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
- A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
- A61F2002/7887—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump for connecting limb exoprostheses to the stump bone
Landscapes
- Health & Medical Sciences (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
Dispositif de fusible mécanique pour protéger, en cas de chute du patient et/ou choc violent contre la prothèse, l'aboutment et implant d'un patient amputé d'un membre et porteur d'une prothèse ostéo intégrée. Il est composé de deux parties : une haute (1) et une basse (2) qui sont tenues par un système de ressorts et billes concentriques (3, 4, 5). Dans une position fermée, il permet au patient de marcher, descendre et montre les escaliers. La partie haute (1) est connectée à l'aboutment. La partie basse (2) est connectée au genou prothétique. Il a une fonction de rotation tout en restant fermé. Cette fonction sera notamment utilisée en position assise en tailleur. En cas de choc violent, chute et torsion, ce dispositif entre en rotation et/ou s'ouvre dans toutes les directions pour protéger le patient et son matériel (implant et aboutment). Ce dispositif est particulièrement destiné aux patients amputés et porteur d'une prothèse ostéo intégrée. Il permettra une meilleure protection des patients en cas de chute et/ou choc. Il leur permettra d'éviter la torsion de l'aboutment qui entraine un changement de cette pièce qui ne peut se faire qu'en bloc opératoire sous anesthésie générale.Mechanical fuse device for protecting, in the event of a fall of the patient and / or violent shock against the prosthesis, the abutment and implant of a limb amputee patient carrying an integrated osteo-prosthesis. It consists of two parts: a high (1) and a low (2) which are held by a system of springs and concentric balls (3, 4, 5). In a closed position, it allows the patient to walk, descend and show the stairs. The upper part (1) is connected to the abutment. The lower part (2) is connected to the prosthetic knee. It has a rotation function while remaining closed. This function will be used in particular sitting position tailor. In case of violent impact, fall and torsion, this device rotates and / or opens in all directions to protect the patient and his equipment (implant and abutment). This device is particularly intended for amputee patients and carrying an integrated osteo-prosthesis. It will provide better protection for patients in the event of a fall and / or shock. It will allow them to avoid the torsion of the abutment that causes a change of this piece that can be done in the operating room under general anesthesia.
Description
FUSIBLE MECANIQUE POUR PATIENT PORTEUR D UNE PROTHESE OSTEO INTEGREE FONCTIONNANT DANS TOUTES LES DIRECTIONS ET TORSION Description de l'invention 1.1 Domaine technique de l'invention : La présente invention concerne un dispositif de fusible mécanique pour protéger, en cas de chute et/ou choc violent, l'aboutment et implant d'un patient amputé d'un membre et porteur d'une prothèse ostéo intégrée. Ce fusible mécanique fonctionne dans toutes les directions et en torsion : il offrira une protection totale au patient. 1.2 Etat de la technique antérieure : Des dispositifs existent mais ils ne fonctionnent que dans le plan horizontal et/ou s'ouvre dans une seule direction. La protection de l'aboutment et implant est donc partiale. 1.3 Exposé de l'invention Ce fusible mécanique comporte une partie haute, une partie basse et un système à 8 ressorts et 8 billes concentriques. Le système à billes concentriques est logé dans la partie basse. Ce système exerce une pression sur la partie haute pour la maintenir dans la partie basse. La pression sera réglée par les vis qui compressent ou décompressent les ressorts qui eux même repoussent les billes. Ce fusible mécanique peut donc être réglé et adapté à l'activité du patient, sa morphologie et son poids.TECHNICAL FIELD OF THE INVENTION The present invention relates to a mechanical fuse device for protecting, in the event of a fall and / or shock. violent, the abutment and implant of a patient limb amputated and carrying a prosthetic integrated osteo. This mechanical fuse works in all directions and in torsion: it will offer total protection to the patient. 1.2 State of the art: Devices exist but they only work in the horizontal plane and / or open in only one direction. The protection of the abutment and implant is therefore partial. DESCRIPTION OF THE INVENTION This mechanical fuse comprises an upper part, a lower part and a system with 8 springs and 8 concentric balls. The concentric ball system is housed in the lower part. This system exerts pressure on the upper part to keep it in the lower part. The pressure will be adjusted by the screws that compress or decompress the springs which themselves repel the balls. This mechanical fuse can therefore be adjusted and adapted to the patient's activity, morphology and weight.
Les parties haute et basse ont une surface de contact de forme sphérique avec méplat pour la partie haute. La partie haute comportera deux gorges : une supérieure et une inférieure. La gorge inférieure autorisera la rotation de la partie haute sans contrainte. La gorge supérieure comportera également 4 logements en forme de demi sphère. La rotation sera contrôlée par les 4 billes supérieures. L'ouverture du système sera contrôlée par les 8 billes. 1.4 Description des schémas Les schémas ci joint montrent un fusible mécanique pour patient ostéo intégré : - Figure 1 : une vue d'ensemble des parties basses et hautes. La surface de contact des deux parties et une demi sphère. - Figure 2: les moments maximum au delà desquels le système devra entrer en rotation ou s'ouvrir 1.5 Mode de réalisation La partie basse (2) est fixée au genou prothétique. La partie basse (2) comporte 8 orifices dans lesquels sont placés les 8 ressorts (4) et 8 billes (3) concentriques disposés de façon radiale et décalés. Ces ressorts (4) et billes (3) exercent des forces sur la partie haute (1) pour la maintenir dans la partie basse (2). La partie basse (1) a une forme qui empêchera les billes (3)de sortir de leur logement en cas d'ouverture du système. La partie haute (2) a une forme en demi boule pour venir se positionner dans la partie basse. Les parties haute et basse ont une surface de contact de forme sphérique avec méplat. Les 8 billes (3) exercent une force qui s'oppose au mouvement de la partie haute (1). La partie haute (1) sera solidaire de la partie basse (2) jusqu'à un moment de 12Nm en rotation ou 70Nm en charge. La partie haute (1) comportera 4 logements (8) en forme de demi boule et une première gorge supérieure. La partie haute pourra tourner dans la partie basse selon les forces appliquées par les seules 4 billes et ressorts supérieurs. Le système restera fermé. La partie haute comportera une seconde gorge dite inférieure. Cette gorge inférieure permettra à la partie haute de tourner alors que le système reste fermé. En déca de ces valeurs (12Nm /70 Nm), le système est dit fermé et permet au patient de marcher et descendre les escaliers. La prothèse est solidaire de l'aboutment. Au delà d'un moment mécanique à 12Nm en torsion, le système entrera en rotation sans s'ouvrir. Le système restera fermé et la partie haute tournera dans la partie basse. Le patient pourra d'ailleurs utiliser cette fonctionnalité pour s'asseoir en « tailleur » Au delà d'un moment de 70Nm, le système s'ouvrira. Le système pourra être rechargé manuellement et sans outil. Les 4 billes supérieures permettent de contrôler la rotation de la partie haute dans la partie basse Les 4 billes inférieures permettent de contrôler l'ouverture totale du système.The upper and lower parts have a spherical contact surface with flat for the upper part. The upper part will have two grooves: one upper and one lower. The lower groove will allow the rotation of the upper part without constraint. The upper groove will also include 4 housing shaped half sphere. The rotation will be controlled by the 4 upper balls. The opening of the system will be controlled by the 8 balls. 1.4 Description of the diagrams The attached diagrams show a mechanical fuse for an integrated osteo patient: - Figure 1: an overview of the low and high parts. The contact surface of the two parts and a half sphere. - Figure 2: the maximum moments beyond which the system will have to rotate or open 1.5 Embodiment The lower part (2) is fixed to the prosthetic knee. The lower part (2) has 8 holes in which are placed the 8 springs (4) and 8 balls (3) concentric arranged radially and offset. These springs (4) and balls (3) exert forces on the upper part (1) to maintain it in the lower part (2). The lower part (1) has a shape that will prevent the balls (3) out of their housing in case of opening of the system. The upper part (2) has a half-ball shape to be positioned in the lower part. The upper and lower parts have a spherical contact surface with a flat surface. The 8 balls (3) exert a force that opposes the movement of the upper part (1). The upper part (1) will be secured to the lower part (2) until a moment of 12Nm rotation or 70Nm load. The upper part (1) comprises 4 housings (8) in the form of a half ball and a first upper groove. The upper part can rotate in the lower part according to the forces applied by the only 4 balls and upper springs. The system will remain closed. The upper part will include a second so-called lower groove. This lower groove will allow the upper part to rotate while the system remains closed. In deca of these values (12 Nm / 70 Nm), the system is said closed and allows the patient to walk up and down the stairs. The prosthesis is integral with the abutment. Beyond a mechanical moment at 12Nm in torsion, the system will rotate without opening. The system will remain closed and the upper part will turn in the lower part. The patient can also use this feature to sit in "tailor" Beyond a time of 70Nm, the system will open. The system can be reloaded manually and without tools. The 4 upper balls make it possible to control the rotation of the upper part in the lower part. The 4 lower balls make it possible to control the total opening of the system.
La partie basse (2) aura un diamètre d'environ 100 mm et une hauteur d'environ 40 mm. La partie haute (1) aura un diamètre d'environ 55 mm et une hauteur d'environ 50 mm. Les billes (3) auront un diamètre de 10 mm. 1.6 Application industrielle : Ce dispositif est particulièrement destiné aux patients amputés et porteur d'une prothèse ostéo intégrée. Il permettra une meilleure protection des patients en cas de chute et/ou choc. Il leur permettra d'éviter la torsion de l'aboutment qui entraine un changement de cette pièce qui ne peut se faire qu'en bloc opératoire sous anesthésie générale. Ce fusible pourra être utilisé dans tout domaine mécanique dans lequel deux arbres doivent être désolidarisés selon des contraintes données.The lower part (2) will have a diameter of about 100 mm and a height of about 40 mm. The upper part (1) will have a diameter of about 55 mm and a height of about 50 mm. The balls (3) will have a diameter of 10 mm. 1.6 Industrial application: This device is particularly intended for amputee patients and carrying an integrated osteo-prosthesis. It will provide better protection for patients in the event of a fall and / or shock. It will allow them to avoid the torsion of the abutment that causes a change of this piece that can be done in the operating room under general anesthesia. This fuse can be used in any mechanical field in which two trees must be disconnected according to given constraints.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1402508A FR3027795A1 (en) | 2014-11-03 | 2014-11-03 | MECHANICAL FUSE FOR PATIENT CARRIER OF AN INTEGRATED OSTEO PROSTHESIS OPERATING IN ALL DIRECTIONS AND TORSION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1402508A FR3027795A1 (en) | 2014-11-03 | 2014-11-03 | MECHANICAL FUSE FOR PATIENT CARRIER OF AN INTEGRATED OSTEO PROSTHESIS OPERATING IN ALL DIRECTIONS AND TORSION |
Publications (1)
Publication Number | Publication Date |
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FR3027795A1 true FR3027795A1 (en) | 2016-05-06 |
Family
ID=52692680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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FR1402508A Withdrawn FR3027795A1 (en) | 2014-11-03 | 2014-11-03 | MECHANICAL FUSE FOR PATIENT CARRIER OF AN INTEGRATED OSTEO PROSTHESIS OPERATING IN ALL DIRECTIONS AND TORSION |
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FR (1) | FR3027795A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3947897A (en) * | 1975-03-17 | 1976-04-06 | Owens Lester J | Apparatus for connecting a prosthesis to a bone |
US20120310371A1 (en) * | 2010-01-29 | 2012-12-06 | The University Of Utah Research Foundation (Uurf) | Releasable attachment system for a prosthetic limb |
US20120316657A1 (en) * | 2005-07-20 | 2012-12-13 | University Of Utah Research Foundation | Releasable attachment system for a prosthetic limb |
US20130195540A1 (en) * | 2010-04-12 | 2013-08-01 | Stanmore Implants Worldwide Limited | Fail-Safe Attachment for Prosthetic Limb |
-
2014
- 2014-11-03 FR FR1402508A patent/FR3027795A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3947897A (en) * | 1975-03-17 | 1976-04-06 | Owens Lester J | Apparatus for connecting a prosthesis to a bone |
US20120316657A1 (en) * | 2005-07-20 | 2012-12-13 | University Of Utah Research Foundation | Releasable attachment system for a prosthetic limb |
US20120310371A1 (en) * | 2010-01-29 | 2012-12-06 | The University Of Utah Research Foundation (Uurf) | Releasable attachment system for a prosthetic limb |
US20130195540A1 (en) * | 2010-04-12 | 2013-08-01 | Stanmore Implants Worldwide Limited | Fail-Safe Attachment for Prosthetic Limb |
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