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
  • A61F5/0125—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 the device articulating around a single pivot-point
• • 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
  • A61F5/0104—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 without articulation
  • A61F5/0106—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 without articulation for the knees
  • A61F5/0109—Sleeve-like structures
• • 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
  • 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
  • A61F5/30—Pressure-pads
• • 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
  • A61F2005/0172—Additional features of the articulation with cushions
  • A61F2005/0176—Additional features of the articulation with cushions supporting the patella
• • 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
  • A61F2005/0181—Protectors for articulations

Definitions

• the present invention relates to a device for holding the patella and a knee orthosis comprising such a holding device.
• the invention is more particularly intended for persons subject to dislocation or subluxation of the patella.
• the dislocation corresponds to the exit of the patella out of the housing of the femur in which it is normally received, towards the outside, while the sub-dislocation is a bad positioning of the patella without there being a real dislocation of this this.
• the luxation of the patella is a painful and impressive accident, resulting in the deformation of the knee and its blockage.
• Orthotics used in the context of dislocation or subl uxation of the rotu are put in place either after surgery or in substitution of it, or preventively. The wearing of such orthotics is carried out essentially during the practice of a sport.
• such a knee orthosis comprises a portion of elastic material intended to surround the knee.
• an arcuate insert to be placed on the outer side of the patella, with its concavity facing the patella.
• This insert thus forms a stop designed to prevent, or at least limit, the movement of the ball to the outside. It is generally associated with straps assembled to the portion of elastic material and on which the user comes to shoot in the opposite direction to dislocation, that is to say towards the median plane.
• this action can very quickly become annoying for the user, especially when excessive traction.
• the abutment effect provided by the insert may be insufficient to maintain the patella in place, especially during knee flexion, where the risk of dislocation is the most important. important.
• the present invention aims to overcome the disadvantages mentioned above.
• the invention relates to a device for holding the kneecap intended to be placed against the knee of a person, this device comprising:
• a substantially annular body having a central orifice which is intended to receive the ball and which has a substantially oval edge; a plurality of support members which are distinct from one another, protruding from the periphery of the body towards the outside, two adjacent support members being separated by a slot in the unconstrained state of the holding device.
• the device of my invention is substantially flat in the unconstrained state; it is substantially non-deformable in this plane; in addition, it is designed to be deformed to a curved position conforming to the shape of the knee bending, curved position in which the support members are substantially contiguous, the holding device then substantially forming a cup surrounding the knee.
• the invention provides a holding device which does not form a stop but more completely a locking means of the patella to maintain it in its normal position in the housing of the femur. This results in increased efficiency of the holding device.
• this isolation is even more important when the knee is in flexion, since the holding device then forms a cup, for example substantially hemispherical, formed by the support members which have approached one another by removing the slots. The bent knee is then substantially enclosed in this cup. This is particularly advantageous because it is when the knee is flexed that the risk of dislocation is the most important.
• the support members are always in contact with the knee regardless of the degree of flexion thereof.
• the holding device which is substantially flat in the unconstrained state, can adapt to a left surface and its shape can change depending on the movements of the person (including bending and extension), thus ensuring contact substantially permanent peripheral around the patella.
• the cutaneous adhesion of the material constituting the holding device can complete the mechanical action of enclosing the patella.
• the holding device is simple and intuitive to position on the knee, and adapts to substantially all morphotypes (normo-focused, in genuvalgum, in genuvarum).
• the holding device can typically be clamped against the knee by means of a portion of elastic material surrounding the knee. Of the so, the effective maintenance of the patella is not obtained essentially by pulling on straps. Thus, the risk of over-tightening, and the inconvenience that results, are avoided.
• This device and the knee orthosis comprising it can therefore be used in the longer term especially during sports practice.
• the device in order that the device is not substantially deformable in the plane that it occupies in the unconstrained state, it is possible to choose suitably the material constituting the device and / or its geometry.
• the edge of the orifice of the annular body is devoid of indentations, that is to say, in other words, that the support members do not have a notch of the inner side (side facing the hole).
• substantially non-deformable is meant that the holding device substantially retains its shape under normal conditions of use.
• the holding device can not be stretched substantially in a direction contained in said plane.
• a slight extension of the device may, however, take place, especially when the person flexes the knee, the elongation of the device in a direction not exceeding 10%, and preferably not exceeding 5%.
• the holding device can be deformed substantially under the effect of traction exerted with a sufficiently large force, but does not correspond to the contra intes to which the device is subjected under normal conditions of use. .
• the holding device has a certain rigidity allowing it to ensure a satisfactory isolation of the patella.
• the holding device also has a certain flexibility, due to the presence of the support members separated by slots, allowing deformation to a curved shape. It is understood that the slots must be large enough to allow the device to take this curved shape, but thin enough to disappear substantially when the knee is bent, for example at about 90 °, the support members then being substantially contiguous.
• the support members are distributed substantially regularly over substantially the entire periphery of the body. We thus obtains a large bearing surface and a pressure balance around the patella.
• the number N of support members may be such that ⁇ N ⁇ 10, and preferably such as 6 ⁇ N ⁇ 8. For example, one can have six or seven support members.
• the holding device may have a plane of symmetry which, in use position and when the person equipped with said holding device is standing, is substantially parallel to the median plane of the person - that is to say in a sagittal plane .
• An advantage of this arrangement is that the holding device can be used interchangeably on a right knee or on a left knee.
• Another advantage lies in the fact that the holding device does not form a stop for the patella on a privileged side, but provides a symmetrical locking to provide even more effective position retention.
• the symmetry improves the centering of the device, as well as its ease of implementation.
• the holding device further comprises a lower support member arranged to be able to bear on the anterior tibial tuberosity of the person equipped with said holding device. This allows the management of Osgood-Schlatter's disease and patellar tendon teno-periostitis.
• the lower support member may be symmetrical with respect to said plane, and the holding device may further comprise six other support members.
• the holding device can be attached to a positioning element designed to be removably and movably assembled on a portion of resilient material for surrounding the knee.
• the invention relates to a knee orthosis comprising a holding device as previously described and a portion of elastic material intended to surround the knee and to press the holding device against the knee.
• the orthosis may further comprise a positioning element on which is fixed the holding device, the positioning element being designed to be grasped by the user when the orthosis is in the use position and to be moved relative to the portion of elastic material so that the holding device is positioned correctly around the ball joint, the positioning member further comprising means removable assembly on the part of elastic material in the appropriate position.
• the orthosis further comprises at least one V-strap which has:
• the orthosis may comprise two V-shaped straps which, in the position of use, are arranged substantially symmetrically on either side of the knee, a strap having:
• the orthosis holder can regulate the traction of the bloods according to its preferences. without having a negative impact on the effectiveness of maintaining the patella.
• the invention thus has a significant advantage over orthoses of the prior art in which the quality of the maintenance of the patella is directly related to the intensity of the traction on the straps.
• the two straps can be arranged so that, in the position of use, they intersect, under the knee, substantially on the lower support member of the holding device when it is present.
• the two branches of the straps that pass under the knee reinforce the compression of the holding device on the anterior tibial tuberosity of the person equipped with said holding device.
• At least one strap may comprise, in the vicinity of its tip, a bow whose concavity is directed towards the knee, in the position of use. This hoop contributes to the maintenance of the patella and, in the case where each strap comprises a hoop, these constitute an additional enclavement of the patella.
• the orthosis may comprise, at least on one side of the orthopedic leg of the orthosis, substantially in the frontal plane in the position of use, two bars articulated to each other substantially at the level of the orthosis. the knee joint, the amplitude of the hinge movement being blocked, in the extension direction, at a bending angle of the order of 5 °. Thus, it prevents the knee is placed in recurvatum, which would increase the risk of dislocation of the patella.
• Figure 1 is a view of a holding device according to the invention, in the unconstrained state
• Figures 2a, 2b, 2c are sectional views of the holding device of Figure 1, respectively along lines AA, BB and CC;
• Figures 3a and 3b show the holding device positioned on the knee of a person standing in extension, respectively in profile and face;
• Figures 4a and 4b are views similar to Figures 3a and 3b, when the knee is flexed by an angle of between 30 and 45 °;
• Figures 5a and 5b are views similar to Figures 3a and 3b, when the knee is flexed by an angle of the order of 90 °;
• FIGS. 6 to 8 illustrate successive steps of installing a knee orthosis comprising the holding device of FIG. 1;
• Figures 9 and 10 show this orthosis in use position on the knee of a person respectively front and back;
• Figures 1 1 to 1 3 show the effect of the straps of the orthosis on a leg respectively viewed from the front and profile with the knee in slight flexion, and profile with the knee flexed;
• FIGS. 14 and 15 are front views of a knee showing the position of the positioner and the possible displacements of this set;
• FIGS. 16 to 18 show successive steps of setting up the orthosis and speci fi cally setting the set comprising the holding device and the positioning element;
• Figure 19 is a side view of a person's leg with recurvatum knee
• Figure 20 is a view of two articulated bars that can equip the knee orthosis according to the invention
• Figure 21 is a side view of a leg of a person equipped with the orthosis provided with such bars;
• Figures 22 and 23 show schematically the articulation between the two bars.
• FIG. 1 shows a device 1 for holding the ball 100, which is designed to be used in conjunction with a personal item.
• the holding device 1 belongs to a knee brace 2 which also comprises a part of elastic material 3 intended to surround the knee and to press the holding device 1 against the knee.
• the holding device 1 can be made in one piece, for example by molding. It is preferably made of a material conferring a certain rigidity, so that it can fulfill the role of maintaining the patella, but read i also to be deformed to a curved position as will be described below.
• the material constituting the holding device 1 preferably has a certain cutaneous adhesion preventing or preventing its sliding relative to the knee.
• the holding device 1 may be made of silicone, especially high viscosity silicone gel.
• the holding device 1 comprises a substantially annular body 5 which has a central orifice 6 whose edge 7 is substantially oval.
• the orifice 6 may in particular be ovoid, the widest portion being located in the upper part in the use position, or even round.
• the body 5 and the orifice 6 have a center 8.
• the holding device 1 also comprises a plurality of support members 1 0 which are distinct from each other and project from the periphery of the body 5 towards the outside, that is to say on the opposite side of the orifice 6.
• the holding device 1 In the unconstrained state, the holding device 1 is substantially flat and extending parallel to a plane P1.
• the thickness e of the device is for example of the order of 5 to 8 mm (see Figure 2c).
• unconstrained state means the position in which the holding device 1 is when it is placed on a support such as a table, without being solicited.
• the "use position” designates the position in which the holding device 1 is located when it is placed on the knee of a person. In the unconstrained state, two adjacent pressing members are separated by a slot 11.
• the ends 12 of the slots 1 1 are preferably located on a substantially oval imaginary line defining the peripheral edge of the body 5.
• the slots 1 1 have dimensions for imparting to the device of my invention 1 a sufficient ten ue to reten ir the patella but also allowing the holding device 1 to deform to curved shape.
• the width I of the slots 1 1 may be of the order of 2 to 5 mm.
• the holding device 1 here has a plane of symmetry P2 which, in the use position and when the person with the said device of my device 1 is standing, is substantially parallel to the median plane of the person.
• the plane P2 is orthogonal to the plane P1.
• the senor is positio n in 1 comprises seven support members 10 distributed substantially regularly on the periphery of the body 5, that is to say each occupying substantially an angular sector close to 50 ° (360 ° / 7).
• the lower support member 10d is arranged to be able to bear on the anterior tibial tuberosity January 01 of the person with dud he holding device 1 (see Figures 4a and 19).
• the support members 10 may have the shape of lobes having a base portion connected to the body 5, a median portion enlarged relative to their base portion and an end portion having a free edge 13 rounded or flattened.
• the length L of a support member 10 between the periphery of the body 5 - that is to say the end 1 2 of a corresponding slot 1 1 - and its free end may be of the order of 20 at 30 mm.
• the lower support member 10d may have a longer length, of the order of 40 to 60 mm.
• the holding device 1 comprises an outer surface 14 that is substantially flat, in the unconstrained state, and the elements of FIG. support 10 have a face 1 5 facing inward - that is to say to the person equipped with the holding device 1 in the use position - which is curved.
• the inner face 15 of the holding device 1 - that is to say all the person with the device is held in the position of use - may include at least one protuberance 16 to prevent glissement on r the skin.
• the holding device comprises protuberances 1 6 in the form of a parenthesis. Specifically, the ispos itif of my nntien 1 com si su r 'orga nde dhu lower inf 10d three protuberances 16 in the form of parenthesis whose concavity is directed upwards, and which are arranged one under the other .
• the holding device 1 is substantially non-deformable in the plane P1 that it occupies in the unconstrained state.
• the holding device 1 is designed so that it can be deformed towards a curved position conforming to the shape of the knee in flexion, a convex position in which the support members 1O are substantially contiguous, the holding device 1 then forming substantially a cup enveloping the knee.
• the holding device 1 is intended to be placed against the knee of a person, the ball 100 being received in the orifice 6.
• the bearing members 1 0 are in contact with the peripheral zone to the ball joint, the body 10d lower bearing is more accurately located at the right anterior tibial tubercle 101.
• the orifice 6 When the person equipped with the holding device 1 is standing, with the knee extended ( Figures 3a and 3b), the orifice 6 encloses the ball joint 1 00, and the support members 1 0 distributed around the orifice 6 fill anatomic vacuums due to their mobility and low density. This position of the person corresponds to the beginning of the risk of dislocation of the patella.
• the knee In the squatting position, the knee being bent at an angle of between 30 ° and 45 °, the risk of dislocation of the patella is greater.
• the support members 10 of the holding device 1 In this position, the support members 10 of the holding device 1 have become closer thanks to their mobility. and they slits 1 1 which separate them.
• the holding device 1 began to close to a curved cupule position.
• the higher the risk of dislocation the more the holding device 1 encloses the patella.
• the holding device 1 is held and pressed against the knee by the portion of elastic material 3 which will now be more precisely described.
• the elastic material part 3 is intended to wrap the knee by sitting on the leg and cu sse. It is for example made of an extensible three-dimensional mesh textile. It may have a plane of symmetry which, in the use position and when the person equipped with said holding device 1 is standing, is substantially parallel to the median plane of the person, and is substantially coincident with the plane P2.
• the portion of elastic material 3 comprises a strip 20 having lateral end portions 21, 22 provided with complementary fastening means, so that the strip 20 can come to close and hang on on itself in the anterior part of the knee.
• attachment means can typically be Velcro ® type.
• the positioning of the band is easier, especially in comparison with a part of elastic material shaped like a sleeve that the user must put on. In addition, this allows you to adjust the position and adjust the pressure on the knee.
• the band 20 may comprise a substantially central opening 23 which will be in the position of use, at the rear of the knee, thus facilitating bending by avoiding the formation of annoying folds.
• the lateral end portions 21, 22 of the band 20 may each have a notch 24.
• the two indentations 24 form an opening for the patella.
• the orthosis 2 may further comprise a positioning element 25 on which the holding device 1 is fixed.
• the positioning element 25 is in the form of a textile on which the holding device 1 is molded. , so as to allow the joining of these two elements and to form a set.
• the face of the holding device 1 which is in contact with the positioning element 25 is its outer face 14, the flatness of which is then due to the fixing method on the positioning element 25.
• the positioning element 25 is designed to be removably and movably assembled on the elastic material part 3. More precisely, the positioning element 25 is designed to be grasped by the user when the orthosis 2 is in the position of use and can be moved relative to the portion of elastic material 3 so that the holding device 1 is positioned correctly around the ball 100.
• the positioning member 25 comprises means of removable assembly on the part of elastic material 3 in the appropriate position. These assembly means can typically be Velcro ® type.
• the positioning element 25 has a central portion 26 on the inside face 27 of which the holding device 1 is fixed, as well as two lateral gripping tabs 28 which are each able to pass through a lateral lumen formed in the portion of elastic material 3 and which are provided with means of assembly to said portion of elastic material 3 (for example the tabs 28 comprise a self-gripping fabric).
• the central portion 26 has for example a substantially oval shape corresponding to the casing of the holding device 1.
• the lumens they may be constituted by the lateral ends of the opening 23 formed in the portion of elastic material 3.
• the orthosis 2 may further comprise at least one strap 30 in
• the orthosis 2 comprises two V-shaped straps 30, each strap comprising a tip 31 and two branches 32, 33. Equipping the orthosis 2 with two straps 30 arranged symmetrically makes it possible to have a single type of orthosis, whether for the right leg or for the left leg.
• the tip 31 of a strap 30 is fixed to the portion of elastic material 3 near the first lateral end portion 21, with the concavity facing away from the strip 20, the two branches 32, 33 extending towards the lower and upward, on both sides of the notch 24.
• the concavity of the tip 31 substantially surrounds the notch 24.
• the tip 31 of the other strap 30 is fixed to the portion elastic material 3 near the second lateral end portion 22 and is arranged substantially symmetrically to the first strap relative to the plane of symmetry of the portion of elastic material 3.
• each strap 30 is arranged substantially symmetrically on either side of the knee.
• Each strap 30 therefore has:
• the free end of the branches 32, 33 is fixed removably on the part of elastic material 3.
• the attachment can be obtained by a Velcro ® system, the straps 30 being for example self-gripping fabric.
• At least one strap and preferably both straps 30 when the orthosis 2 is equipped with two straps, comprises, in the vicinity of its tip 31, a bow 34 whose concavity is directed towards the knee, in the position of use.
• this assembly can be done at one of the two side lugs 28, engaged in the opening 23 the other leg 28 remaining free at this stage. Said assembly is placed such that, when the orthosis is in place, it is the holding device 1 which comes into contact with the knee and not the positioning element 25.
• the strip 20 and equipped is placed behind the knee ( Figure 6).
• the user begins to fold the band 20 on the anterior face of his knee, for example starting from the end part 21
• the device is attached to the positioning element 25 (FIG. 7).
• the user then sets up the straps 30.
• the free end a branch 32, 33 of a strap 30 is fixed substantially on the opposite side of the jab to the side where is fixed the tip 31 of the same strap 30.
• a strap 30 does not do all the trick of the leg, but substantially a half turn. This avoids the effects of tourniquet, especially since the strap 30 is not arranged circularly around the thigh or the leg, but obliquely.
• the two arches 34 surround the patella, contributing to its confinement. More advantageously, the two straps 30 can be arranged so that the two lower branches 32 intersect under the knee, substantially on the lower support member 10d of the holding device 1, to reinforce the support in this case. zoned. This support helps relieve the painful cases of Osgood Schlatter.
• Figures 9 and 1 0 show the orthosis 2 in position of use, respectively front and back.
• the holding device 1 is then clamped between the knee and the part of elastic material 3 - or the band 20 - so as to be plated and held against the knee.
• the straps 30 increase the patellar locking effect.
• the traction on the straps 30 increases, thus increasing the pressure of the arches 30 on the holding device 1.
• the locking effect, and therefore the rotul ial centering effect thus reaches its optimum effect during knee flexion, which corresponds precisely to the maximum risk of dislocation.
• Figures 14 to 18 show how it is possible for the user to perfectly center the holding device 1 on its ball 100.
• the holding device 1 is located too far left. By moving it substantially horizontally to the right according to the arrow F1, it can therefore be recentered relative to the ball joint 100 as illustrated in FIG. 16. Conversely, in FIG. 15, the holding device 1 is situated too far to the right. By moving it substantially horizontally to the left according to the arrow F2, it can be refocused relative to the ball joint 1 00. To move the holding device 1, the user grasps the leg 28 (or both legs 28) of the positioning element 25 and pulls it in the appropriate direction.
• the translational adjustment of the positioning element 25 can be done at any time of use and without having to remove the orthosis 2.
• the user must detach the tabs 28 of the portion of elastic material 3 to make them prehensile through the opening 23 (Fig ure 1 7). He can then pull on one or other of the legs in the appropriate direction. Once the correct position obtained, the legs 28 are folded to be assembled again on the part of elastic material 3 and thus sol idariser this part 3 and the holding device 1 attached to the positioning element 25 ( Figure 18) .
• the orthosis 2 may comprise, at least on one side of the leg equipped with the orthosis 2, and preferably on each side, substantially in the front plane in use position, an upper bar 38 and a lower bar 39 articulated to each other substantially at the level of the knee joint.
• the bars 38, 39 are connected to each other by a plate 40 which is articulated to the upper bar 38 about an axis 41 orthogonal to the median plane - in the position of use - and which is articulated to the bar lower 39 around a n axis 42 orthogonal to the median plane.
• the brackets 38, 39 and the plate 40 constitute a lateral rigidity element 45 that allows to improve the strength of the orthosis 2. They can be made of light alloy.
• the adjacent ends of the bars 38, 39 are provided with teeth 43 which, cooperating, form a link of the gear type, and complementary posterior surfaces forming a stop 44.
• the teeth 43 are arranged essentially in the posterior and lower regions of the adjacent ends of the bars 38, 39, the amplitude of the hinge movement between the bars 38, 39 is blocked, in the extension direction. at a bending angle ⁇ of the order of 5 °.
• ⁇ of the order of 5 °.
• knee flexion is limited by abutment 44 to an amplitude ⁇ , for example, close to 25 °.
• the bars 38, 39 and the plate 40 are mounted, on either side of the knee in the front plane in the position of use, in sheaths 46 formed on the part of elastic material 3.
• the sheaths 46 can be provided on the strip 20 on either side of the opening 23, as seen in particular in Figures 10 and 12.
• the sheaths 46 may have a surface for fastening a self-gripping fabric, and allow thus the hooking of the tabs 28 of the positioning element 25 and the free ends of the branches 32, 33 of the straps 30.
• the invention provides a decisive improvement to the prior art, by providing a holding device which provides rest, and even more flexion, an excellent locking of the patella.

Landscapes

• Health & Medical Sciences (AREA)
• Nursing (AREA)
• Orthopedic Medicine & Surgery (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)
• Orthopedics, Nursing, And Contraception (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47557286

Family Applications (1)

Country Status (5)

Families Citing this family (35)

Family Cites Families (18)

• 2012
  • 2012-10-30 FR FR1260363A patent/FR2997294B1/fr active Active
• 2013
  • 2013-09-26 CN CN201380057375.5A patent/CN104936559B/zh active Active
  • 2013-09-26 WO PCT/FR2013/052264 patent/WO2014068207A1/fr active Application Filing
  • 2013-09-26 US US14/439,709 patent/US20150290014A1/en not_active Abandoned
  • 2013-09-26 EP EP13779309.7A patent/EP2914217A1/de not_active Withdrawn

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events