KR101813063B1 - Hip joint device and method - Google Patents

Abstract

A medical device for transplantation is provided in the patient ' s hip joint. The medical device includes first and second pieces and a releasing member capable of holding the first piece attached to the second piece in the first state and releasing the first piece from the second piece in the second state. The releasing member is suitable for changing from the first state to the second state when a predetermined deformation force is applied to the releasing member.

Description

[0001] HIP JOINT DEVICE AND METHOD [0002]

The present invention generally relates to a hip prosthesis.

Osteoarthritis is a syndrome in which low-grade inflammation causes pain in the hip joint, caused by abnormal wear of the cartilage, which acts as a cushion in the hip joint. Abnormal wear of this cartilage also results in a reduction in joint lubrication, also called synovial fluid. Hip osteoarthritis is a somewhat serious form that has been measured to affect 80% of all people over 65 years of age.

Current treatments for osteoarthritis of the hip include replacing a portion of the hip joint with artificial organs through NSAID drugs, topical injection of hyaluronic acid or glucocorticoid to aid lubrication of the hip, and hip surgery do.

Replacement of part of the hip joint is one of the most common operations performed in the world to hundreds of thousands of patients so far every year. The most common method involves placing a metal artificial organ in the femur and a plastic bowl in the acetabulum. This operation is performed through an incision in the hip and upper thigh and through the lateral muscles of the fascia lata and thighs. To access the joints, supporting Fibrous Capsule attached to the femur and the iliac bone must be penetrated, making it difficult to obtain a fully functional joint after surgery. The femur is then cut at the neck with a knife top and the artificial organ is placed with or without bone cement in the femur. The acetabular reamer is slightly expanded using acetabular reamers, and plastic bowls are placed using screws or bone cement.

Complications after hip arthroplasty include loosening of the prosthesis in dislocation of the hip and fixation in the femur. The loosening and / or displacement of this artificial organ can be induced, for example, by the abnormal strain applied to the hip joint, from the fall of the patient or the movement of the fast hip. A fully anchored hip prosthesis without the possibility of being displaced will increase the risk of loosening the prosthesis from fixation at the femur because the total strain is then applied to the femur.

Hip artificial organs that are capable of reducing post-operative complications are therefore desirable.

A medical device for a patient ' s hip transplantation is provided. The medical device includes a first piece that can be secured to the pelvic bone. The first piece includes a convex contact surface that can be partially disposed within a concave contact surface. The medical device further includes a second piece that can be secured to the femur. The second piece includes, when implanted, a concave contact surface partially surrounding the convex contact surface of the first piece. The medical device further includes a release member that holds the first piece attached to the second piece in the first state and releases the first piece from the second piece in the second state. The releasing member can be changed from the first state to the second state when a predetermined deformation force is applied to the releasing member. The structure with the release member reduces the risk of damage to any structure of the human body and / or between the human body and artificial parts.

According to one embodiment of the medical device, the convex contact surface of the first and / or second piece is at least partially spherical.

According to another embodiment, the concave contact surface of the second piece is at least partially spherical.

According to one embodiment, the first piece may include a ball-shaped piece, and the second piece may include a bowl-shaped piece. The ball-shaped piece may be disposed in a bowl-shaped piece to replace the functional hip. The ball-shaped piece may be fixed using the release member in a bowl-shaped piece.

The releasing member according to any of the embodiments of the present application can be changed non-invasively from the first state to the second state and from the second state to the first state when a predetermined deformation force is applied to the releasing member.

At least one of the first and second pieces includes two or more portions that can contact each other when the medical device is implanted in a patient.

According to another embodiment, the first or second piece may be introduced through the hole in the pelvic bone of the patient. One of the two or more pieces may be mechanically secured to each other after the two or more pieces are introduced into the hip joint through a hole in the patient's pelvic bone.

The hole in the pelvic bone may have a cross-sectional area of less than 530 mm ^2, less than 380 mm ^2, less than 250 mm ^2, less than 180 mm ² , or less than 110 mm ² .

According to one embodiment, the second piece of the medical device comprises a release member according to any of the embodiments herein. The release member may comprise an elastic portion, which may comprise, for example, an elastic material, a spring or an elastic band. The elastic band is capable of at least partially rounding the ball-shaped piece.

According to another embodiment of the medical device, the release member comprises at least one of a bendable portion, a flexible portion, a compressible portion, a movable portion or a movable portion.

According to yet another embodiment, the releasing member comprises a magnet capable of holding the first piece in the second piece.

According to another embodiment, the releasing member includes a rupturing device which can fail at a predetermined deformation force. The rupture device may comprise, for example, a rupture band and / or a rupture pin.

The release member may comprise multiple holding members, according to one embodiment, which may further slide relative to the first piece, or roll relative to the first piece. According to one embodiment, the rotatable holding member includes a ball-shaped holding member.

A first piece of a medical device according to any one embodiment of the present disclosure may include two or more portions that can be in contact with each other when the medical device is implanted in a patient. One of the two or more portions may be mechanically fixed to a second one of the two or more portions after the two or more portions are introduced into the hip joint through a hole in the patient's pelvic bone.

The first piece may comprise, according to one embodiment, a flexible or resilient portion that allows the medical device to be inserted through a hole in the pelvic bone, the resilient portion compressing the first piece in one or more directions .

According to another embodiment, the first piece includes a first region and a second region. The first region comprises a first material which may be elastic and the second region comprises a second material which may be elastic. The first material may be more elastic than the second material.

According to one embodiment of the medical device, the second piece comprises two or more parts that can be brought into contact with each other when the medical device is implanted in a patient. One of the two or more portions may be mechanically secured to a second one of the two or more portions after the two or more portions are introduced into the hip joint through a hole in a patient's pelvic bone.

The medical device may include, according to another embodiment, a correction member for correcting a predetermined deformation force required for the release member to change from the first state to the second state. The correction member may be a correction screw.

A method of installing a medical device according to any of the embodiments of the present application is further provided. The method includes the following steps. : Exposing the hip joint according to a surgical or arthroscopic procedure, securing the first piece of the medical device to the pelvic bone, securing the second piece of the medical device to the femur, Disposing a first piece in connection with the second piece, and holding the first piece in the second piece using the releasing part.

According to one embodiment, the step of retaining the first piece in the second piece using the releasing member includes holding the first piece in the second piece using an elastic member. According to another embodiment, the step of retaining the first piece in the second piece using the elastic member includes holding the first piece in the second piece using an elastic band.

According to one embodiment, the step of retaining the first piece in the second piece using the releasing member may include holding the first piece in the second piece using a rupturing member. The rupturable member may be a rupturable band.

According to another embodiment, the step of retaining the one piece on the second piece includes holding the first piece on the second piece using a spring loaded member.

A medical device for a patient's hip implant is additionally provided. The medical device comprising a first and second piece and a first piece attached to the second piece in a first state and a second piece having a first portion and a second piece, Member. The releasing member is capable of changing from the first state to the second state when a predetermined deformation force is added to the releasing member.

According to one embodiment, the first piece includes a ball-shaped piece, which can replace the surface of the caput femur at least in the hip joint.

According to one embodiment, the second piece comprises a bowl-shaped piece, which can replace the surface of the ankle at least in the hip joint.

According to another embodiment, the first piece comprises a ball-shaped piece and the second piece comprises a bowl-shaped piece, and the ball-shaped piece is arranged in a bowl-shaped piece to replace the functional hip joint Thereby creating an artificial hip joint as a whole. The bulbous piece may be secured within the bowl-shaped piece using a release member.

The releasing member according to any embodiment can be non-invasively changed from the first state to the second state and from the second state to the first state when a predetermined deformation force is applied to the releasing member. Thus, if displaced, the hip can be reinstated without the need for a surgical procedure.

At least one of the first and second pieces may include two or more portions that allow the medical device to be in contact with each other when the medical device is implanted in a patient.

The first and / or second piece may be introduced through a hole in a pelvic bone of a patient.

According to one embodiment, the two or more pieces may be mechanically fixed to each other after the two or more pieces are introduced into the hip joint through the hole of the patient's pelvic bone.

Releasing member

According to one embodiment, the first piece of the medical device comprises the release member, which may be a ball-shaped piece of the medical device comprising a release member. According to another embodiment, the second piece of the medical device comprises the release member, which may be a bowl-shaped piece of a medical device comprising a release member.

According to another embodiment, the releasing member includes an elastic portion, which may further comprise an elastic material.

According to yet another embodiment, the releasing member comprises a bendable portion and / or a flexible portion and / or a compressible portion. It is further contemplated that the release member includes a movable or movable portion.

In an embodiment in which the medical device comprises an elastic portion, the elastic portion may comprise a spring and / or an elastic band, at least a portion of which can round a ball-shaped piece, The shape of the piece can be maintained. The elastic band may be further disposed between the ball-shaped piece and the bowl-shaped piece.

According to yet another embodiment, the releasing member comprises a magnet capable of holding the first piece on the second piece.

According to another embodiment, the releasing member includes a rupturing device for releasing the first piece from the second piece, the rupturable device being capable of failing at a predetermined deformation force. The rupture device may include a rupture band, which may round at least partially the ball-shaped piece. The rupture band, according to one embodiment, may be disposed between the ball-shaped piece and the bowl-shaped piece, and may include a bursting pin.

The release member may include multiple holding members, and the holding members or holding members may slide relative to the first piece and / or rotate relative to the first piece. The holding member may include a ball holding member.

First piece

According to one embodiment, the first piece includes two or more portions that can contact each other when the medical device is implanted in a patient.

The first piece may, according to any of the embodiments, be introduced through a hole in the pelvic bone of a patient.

According to one embodiment, one of the two or more portions is such that two or more portions are introduced into the hip joint through a hole in the patient's pelvic bone, and then mechanically secured to a second one of the two or more portions.

The first piece may include a flexible portion and / or an elastic portion to allow the medical device to be inserted through a hole in the pelvic bone. The resilient portion may compress the first piece in one or more directions.

The first piece may comprise a first region and a second region, wherein the first region may comprise a first material to be elastic and the second region may comprise a second material to be elastic And the first material may be made more elastic than the second material.

Second piece

According to one embodiment, the second piece includes two or more portions that can be brought into contact with each other when the medical device is implanted in a patient. The second piece may be introduced through a hole in the pelvic bone of the patient.

According to another embodiment, one of the two or more portions may be mechanically fixed to a second one of the two or more portions after the two or more portions are introduced into the hip joint through a hole in the patient's pelvic bone It is.

According to yet another embodiment, the medical device comprises at least a three-dimensionally curved hip surface comprising an inner surface and an outer surface. The inner surface includes six different points: a first point, a second point, a third point, a fourth point, a fifth point, and a sixth point, all points along the long axis of the inner surface And are disposed at different positions. A first straight line, a name from the first point to the second point, parallel to a second straight line extending from the third point to the fourth point, the second straight line extending from the fifth point to the sixth point 3 Parallel to the straight line. Moreover, the first and third straight lines are shorter than the second straight line, and the second straight line is located between the first and third straight lines.

The medical device may further include a correction member for correcting the predetermined deformation force required of the release member to change from the first state to the second state. The correction member may be a correction screw.

The normal hip joint has an axial distribution to the femoral head, wherein the femoral ball has a substantially coarse arrangement with a maximum diameter substantially perpendicular to the central axis of prolongation of the axial distribution of the collum femur , And a colon femur. The femoral head is disposed in a bowl-shaped rib and forms a hip joint. The bowl-shaped osteophyte has a second axis distribution having a central axis along the center of the bowl from the center of the opening and the bottom of the bowl and toward the opening and the femoral head, And has a maximum diameter substantially perpendicular to the center axis of the rotor. The extension of the central axis of the axial distribution is the same as the central axis of the second axial distribution when the femoral head is symmetrically located centrally within the bellows bowl. The medical device includes two artificial hip surfaces, the first piece having, on the opposite side of the femur of the colum, replacing the joint surface of the femoral head and replacing the artificial femoral two surface, The artificial femoral head includes two artificial femoral surfaces that can be disposed within the ankle ball bowl or its artificial alternate. Wherein the artificial femoral bifurcation surface is spaced apart from the glenoid bowl towards the femoral head when mounted on a functional location in the joint on the femoral head and is located on at least a portion of the femoral head beyond the maximum diameter of the femur head, And a first beyond portion of the surface that can enter and / or cover the bones of the bone. Wherein the at least one first transitional portion has a vertical distance that is closest to the central axis that is less than a distance between an outer margin of the maximum diameter of the femoral head and the central axis, It is possible to create and produce a more stable position of the two artificial femoral surfaces. The transitional portion includes at least a part of the releasing member.

The normal hip joint has a column femoral bone having an axial distribution that forms on the femoral head, wherein the femoral head has a substantially bulbous arrangement with a maximum diameter substantially perpendicular to the central axis of the axis distribution of the column femur. The femoral head is disposed in a bowl-shaped rib and forms a hip joint. The bowl-shaped osteophyte has a second axis distribution with an opening and a central axis along the center of the bowl from the center of the bottom of the anterior osteophyte bowl and towards the opening and the femoral head. Wherein said rib has a maximum diameter substantially perpendicular to a central axis of said second axial distribution of said rib and said extension of said central axis of said axial distribution is in a symmetrical position centered in the chordal cavity of the femoral head, Is the same as the central axis of the second axis distribution. Wherein the medical device includes two artificial hip surfaces that replace and replace at least a portion of the articular surface of the ankle of the ankle and are mounted on a femoral head or an artificial surrogate thereof when mounted on the hip , Including the surface of the artificial ganglion. Wherein the surface of the articular ganglion is configured such that when mounted on the femoral head or on an artificial surrogate thereof, at least one portion of the femoral head or artificial alternate thereof, beyond the maximum diameter of the ankle, away from the glenohumbral bowl toward the femur, And a first beyond portion of the surface that is capable of covering the surface. Wherein the at least one first transitional portion has a vertical distance closest to the central axis that is less than the distance between the outer diameter of the maximum diameter of the articulating rib surface and the central axis, When mounted, can create and produce a more stable position of the articular gingival surface at the functional location of the hip joint. And the first transit portion includes the releasing member.

The releasing member may include elastic and / or bendable portions and / or flexible portions and / or compressible portions and / or bendable portions to allow the first piece to be released from the second piece, according to any of the embodiments. Or movable parts and / or movable parts.

A method of installing a medical device according to any of the embodiments is additionally provided, the method comprising the steps of: Comprising: exposing the hip joint through a surgical or arthroscopic procedure, securing the first piece of the medical device to the femur, securing the second piece of the medical device to the pelvic bone, Placing one piece in connection with the second piece, and retaining the first piece in the second piece using the release member.

According to an embodiment, retaining the first piece on the second piece includes retaining the first piece on the second piece using an elastic member.

According to one embodiment, the step of retaining the first piece on the second piece includes holding the first piece on the second piece using a rupturing member.

According to one embodiment, retaining the first piece to the second piece includes retaining the first piece to the second piece using a spring loaded member.

According to one embodiment, the step of retaining the first piece on the second piece includes holding the first piece on the second piece using an elastic band.

According to one embodiment, the step of retaining the first piece in the second piece includes holding the first piece in the second piece using a rupture band.

It is noted that portions, features, methods, related systems, portions of systems, or associated drawings of any or all embodiments or embodiments described herein may be combined in any manner.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in detail hereinafter, by way of example, with reference to the accompanying drawings.

1 shows a section of a hip joint,
Figure 2 illustrates the first stage of conventional hip surgery,
Figure 3 shows the step of separating the femoral head from the hip capsule,
Figure 4 shows the incisions made in the laparoscopic / arthroscopic method,
Figure 5 shows the instruments used in the laparoscopic / arthroplasty procedure,
Figure 6 shows creating a hole in the pelvic bone of a patient,
Figure 7 shows the details of laparoscopic surgery,
Figure 8 shows a cross section of a patient when laparoscopic surgery is performed,
Figure 9 shows a section of the hip joint in a first state, when a medical device is provided,
Figure 10 shows a cross section of the hip joint in a second state when a medical device is provided,
Figure 11 shows a cross section of the hip joint in a first state when a medical device is provided,
Figure 12 shows a cross section of the hip joint in a second state when a medical device is provided,
Figure 13 shows a cross section of the medical device,
Figure 14 illustrates an alternative embodiment of the medical device shown in Figure 11, in a first state,
Figure 15 shows an alternative embodiment of the medical device shown in Figure 11 in a second state,
Figure 16 shows a cross section of a hip joint in a first state when provided with a medical device according to another embodiment,
Figure 17 shows a section of the hip joint in a second state when provided with a medical device according to another embodiment,
18A shows a cross-section of a hip joint in a first state when a medical device is provided comprising an elastic or rupturable band,
18B shows a cross-section of the medical device of FIG. 18A in a first state,
19A shows a cross section of a hip joint in a second state when a medical device is provided comprising an elastic or rupturable band,
FIG. 19B shows a cross section of the medical device of FIG. 19A in a second state,
Figure 20 illustrates a cross section of a hip joint in a first state when a medical device according to another embodiment is provided,
Figure 21 shows a cross section of a hip joint in a second state when a medical device according to another embodiment is provided,
Figure 22 shows a section of the hip joint in a first state when a medical device is provided comprising a tear band,
Figure 23 shows a section of the hip joint in a second state when a medical device is provided comprising a tear band,
24 shows a cross section of a hip joint in a first state when a medical device according to another embodiment is provided,
25 shows a cross section of a hip joint in a second state when a medical device according to another embodiment is provided,
Figure 26 shows a cross section of the hip joint in a first state when a medical device according to one embodiment is provided wherein the artificial rib surface comprises elastic elements,
Figure 27 shows a cross section of the hip joint in a second state when a medical device according to one embodiment is provided wherein the artificial rib surface comprises elastic elements,
Figure 28 shows an alternative embodiment of the medical device shown in Figure 26,
29 shows a cross section of the hip joint in a first state when a medical device is provided that can hold the femoral head 5, or an artificial surrogate thereof, in the artificial foregrock by means of a magnetic force,
30 shows a cross section of the hip joint in a second state when provided with a medical means capable of holding the femoral head 5, or an artificial surrogate thereof, in the artificial rib by means of a magnetic force,
Figure 31 diagrammatically shows the artificial fork or artificial femoral head,
32 shows a cross-section of an artificial rib or an artificial femoral head,
Figure 33 illustrates the principle of an alternative embodiment,
Figure 34 illustrates the principle of an alternative embodiment,
Figure 35 illustrates the principle of an alternative embodiment,
Figure 36a illustrates one embodiment of a locking / releasing member,
36B shows a cross section of the hip joint in one embodiment when the lock / release member locks the artificial femoral head to the artificial rib;
FIG. 36C shows a cross section of the hip joint in an embodiment in which the lock / release member releases the artificial femoral tooth from the artificial rib; FIG.
Figure 36d shows another embodiment of the lock / release member,
Figure 36E shows a cross section of the hip joint in an embodiment in which the lock / release member according to one embodiment of Figure 36d locks the artificial femoral head into the artificial rib;
FIG. 36F shows a cross section of the hip joint in an embodiment when the lock / release member according to one embodiment of FIG. 36D releases the artificial femoral head from the artificial rib; FIG.
Figure 36G shows another embodiment of the lock / release member,
Figure 36h shows another embodiment of the lock / release member,
Figure 36i shows a cross section of the hip joint when the artificial hip joint is assembled,
36J shows a section of the hip joint when the artificial hip joint is assembled,
36K shows a section of the hip joint when the artificial hip joint is assembled,
36M shows a section of the hip joint when the artificial hip joint is in the released state.

Elasticity should be understood as the ability of materials to be deformed in an elastic manner.

Elastic deformation is when a material deforms under stress (eg, external force), but returns to its original shape when stress is removed. A more elastic material should be understood as a material with a module of lower elasticity. The module of the elasticity of an object is defined as the slope of its stress-strain curve in the elastic deformation section. The elastic modulus is calculated as the stress / strain, where stress is the force that causes deformation, divided by the area applied by the force; And the strain is the ratio of the change due to the stress.

The stiffness should be understood as the resistance of the elastic body to deformation by the applied force.

Functional hip joint motion should be understood, at least in part, as the motion of the hip joint corresponding to the natural motion of the hip joint. In some cases, the natural motion of the hip may be somewhat limited or changed after hip surgery, which makes the hip joint with artificial surfaces somewhat different from the functional hip motion of the natural hippocampus.

The functional location of the implantable medical device or artificial organ is the location where the hip joint can perform functional hip joint motion. The final location should be understood as a functional location where the medical device does not require further location changes.

Biocompatible substances should be understood as substances with low levels of immune response. Biocompatible materials are often also referred to as biomaterials. Analogous are biocompatible metals, biocompatible metals with low immune response, such as titanium or tantalum. The biocompatible metal may also be a biocompatible alloy comprising one or more biocompatible metals.

Form fitting is an element having a section or section that is to be understood as an element capable of mechanically linking the element to one or more other elements using the section or section do. A foam-fitted structure is a structure of an element that can be foam-fitted.

The medical device according to any of the embodiments may comprise one or more materials selected from the group consisting of polytetrafluoroethylene (PTFE), perfluoroalkoxy (PFA) and fluorinated ethylene propylene (FEP). It is further contemplated that the material comprises an alloy of a metal, such as cobalt-chromium-molybdenum or titanium or stainless steel, or polyethylene, such as crosslinked polyethylene or gas sterilized polyethylene. The use of ceramic materials, such as zirconium or zirconium dioxide ceramics or ceramics, can also be considered on the contact surface or in the overall medical device. A portion of the medical device in contact with a human bone for securing the medical device to a human bone may include a poorhouse structure for securing the medical device to a human, It can be a porous micro or nano-structure that can promote growth-in of the bone. The porous structure can be obtained by applying a hydroxy-apatite (HA) coating or a rough open-pored titanium coating, which can be produced by air plasma spraying, and the rough open-pore titanium Combinations involving coatings and HA top layers may also be considered. The contacting portions may be filled with self lubricating materials such as wax polymers such as PTFE, PFA, FEP, PE and UHMWPE, or lubricants, preferably biocompatible lubricants, such as hyaluronic acid derivatives infuse) powder metallurgy. It is also contemplated that the material of the contacting portions or surfaces of the medical device may be lubricated continuously or intermittently. According to some embodiments, the portions or regions of the medical device may comprise a combination of materials of metals and / or combinations of carbon fibers and / or boron, combinations of metals and plastic materials, combinations of metals and carbon- A combination of carbon and plastic based materials, a combination of flexible and rigid materials, a combination of elastic and less elastic materials, Corian or acrylic polymers.

In the following, a detailed description of preferred embodiments of the present invention will be provided. In the drawings, like reference numerals designate the same or corresponding elements in some of the figures. It is to be understood that these figures are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Thus, any indication of direction, such as "up" or "down ", is intended only to indicate the direction indicated in the figures. Further, any dimensions and the like shown in the drawings are for illustrative purposes only.

Figure 1 shows a cross section of a hip joint of a human patient. The hip joint includes the femoral head (5) located at the top of the femoral head (6), which is the top portion of the femur (7), or an artificial substitute thereof. The femoral head 5 is connected to the rib 8, which is a bowl-shaped portion of the pelvic bone 9. Both the femoral head surface 10 and the iliac crest surface 11 are covered with articular cartilage 13, which acts as a cushion in the hip joint. In patients with osteoarthritis of the hip, the articular cartilage (13) is abnormally worn down by low grade inflammation. The hips are surrounded by a hip capsule 12, which provides support for the joints and suppresses luxation. After conventional hip surgery, penetrating the hip capsule 12, the capsule 12 is extremely weakened by the limited wound restoration potential of its ligamentous tissue. By performing hip joint surgery without compromising the hip capsule 12, the patient can be fully restored and a deformable force as much as possible of the natural one can be added to the artificial joint.

Figure 2 shows a side view of a conventional hip surgery wherein an incision 112 is made in the femur 113 so that the physician can reach the femur 7 where the femoral head 5 is placed thereon. The femur 7 is then extracted from the hip capsule 12 and exposed to the femoral head 5, which is replaced or resurfaced during surgery.

Figure 3 shows the addition of the artificial femoral bifurcation surface 45 on the femoral head 5 in a traditional operation. However, according to other embodiments of the prior art, the entire colum femoral 6 is separated using a femoral top, and then the portion of the prosthetic organ including the femoral head is fixed to the femur using bone cement or mechanical fastening members . The bowl-shaped cup is then placed in the ankle 8 so that it acts as a contact surface opposite the new artificial femoral head 45 when the hip joint performs a functional hip motion in its functional position. According to the prior art, the artificial femoral bifurcation surface and the artificial rib surface are kept together by the hip joint capsule, which is extremely weakened when the capsule penetrates during surgery.

An alternative way of operating the hip will be described below.

Figure 4 shows a front view of a human patient body. The laparoscopic / arthrodesis procedure of the hip joint surgery from the opposite side of the ankle is performed by forming small incisions 14 in the abdominal wall of a human patient according to the first embodiment. The mini-incisions allow the physician to insert laproscopic trocar into the abdomen of a human patient. According to the first embodiment, the incisions 14 pass through the rectus abdominis and abdominal cavity to the abdomen of a human patient. According to a second preferred embodiment, the mini-incisions 15 are performed with the pelvic region under the abdominal cavity through the rectus abdominis muscle. According to a third embodiment, the mini-incisions 16 are performed directly between the iliac and peripheral tissues, and one incision 16 allows the pelvic bones to be dissected with very little penetration of the fascia and muscle tissue. According to a fourth embodiment, the incision 17 is made in the scintillation channel. In all four embodiments, the surrounding tissues of the pelvic bone 9 are separated or penetrated in the area opposite the ankle 8 so that the physician can reach the pelvic bone 9. [

It is clear that the described methods can be combined or modified to achieve the same purpose of dissecting the pelvic bone on the side opposite the zygomorph.

After dissection of the pelvic bone 9, a hole 18 is formed in the bone 9, as shown in Fig. The hole 18 passes through the pelvic bone from the opposite side of the cheekbone 8 to the hip joint 19. Here, the medical device according to any of the embodiments can be inserted into the pelvic bone 9 through the hole 18. For this purpose, the medical device comprises a first and a second (not shown) device, which can be introduced and subsequently mounted through a hole 9 and mechanically fixed to each other in situ for the formation of a mounted medical device Piece. This is described in more detail with reference to Figures 36h and 36i.

The medical device or the first and second pieces of the medical device are connected to the pelvic bone 9 through a hole 18 having a cross sectional area of less than 530 m 2 or to a hole 18 having a cross- To the pelvic bone 9 through the hole 18 having a cross sectional area of less than 250 mm2 or to the pelvic bone 9 through the hole 18 having a cross sectional area of less than 180 mm2 , Or through a hole 18 having a cross-sectional area of less than 110 mm < 2 >. It is further contemplated that a smaller hole is a less invasive procedure, wherein the medical device needs to be loaded with two or more pieces. In some embodiments, the medical device is mounted with multiple pieces that can be mechanically connected to a base piece.

Figure 5 shows a front view of the body of a human patient, illustrating the laparoscopic method of operating the hip joint from the opposite side of the ankle (8). The hip joint includes a rib (8) and a femoral head (5). Small incisions 14 in the abdominal wall of the human patient allow insertion of the laparoscopic trocar 33a, b, c into the patient's body. Thereafter introduces, disposes, connects, attaches, forms, or charges portions of at least one camera 34, a surgical instrument that can form a hole in the pelvic bone 35, or parts of an artificial organ or artificial organ Can be inserted into the body through the laparoscopic trocar (33a, b, c).

Figure 6 illustrates the formation of a hole 18 in the pelvic bone 9 from the abdominal side of the ankle using a bone contacting organ 22.

Figure 7 shows a close-up view of the insert 37 of the prosthesis parts 38 into the patient's body through the laparoscopic trocar 33a, b, c. Portions of the prosthesis may be portions of the bone material that may be used to block the artificial femoral head 45, the artificial ankle 65 or parts of the prosthesis or the hole 18 formed in the pelvic bone 9. [

8 is a side view of a human patient, wherein the hip joint is shown in cross-section. The hip joint includes the femoral head 5 located at the top of the column femur 6, which is the top portion of the femur bone 7. The femoral head 5 is connected to the rib 8, which is a bowl-shaped part of the pelvic bone 9. The laparoscopic trocar 33a, b, c may include at least one camera 34, a surgical instrument 35 capable of forming a configuration in the pelvic bone 9, or portions of artificial or artificial organs , For connecting, attaching, forming or filling instruments 36 to reach the hip joint 39.

FIG. 9 shows an artificial bowl-shaped orbicularis cup 65 disposed in the pelvic bone 9. FIG. In the first state, the artificial bowl-shaped osteophyte cup 65 is formed in such a manner that a femoral head 5, which is a ball piece attached to the column femur 6, is inserted into an artificial bowl- 65 to releasably hold the release members 801 in position in the hip joint. In the second state, the release member 801 can release the femoral head 5, or its artificial surrogate, from the articular bowl-shaped orbicularis cup 65 disposed in the pelvic bone 9. The releasing member 801 can be changed from the first state to the second state when a predetermined deformation force is applied to the releasing member 801. [ The deforming force is preferably caused by an abnormal movement of the hip joint, for example a fall of the patient. According to the embodiment shown in Fig. 9, the release member 801 includes an elastic portion including an elastic material, which is an entire release member 801 in the illustrated embodiment. The releasing member can be changed non-invasively from the first state to the second state and from the second state to the first state when a predetermined deformation force is applied to the releasing member 801. [

Figure 10 shows a cross section of the hip joint when the release member 801 is in the second state wherein the release member 801 is attached to the artificial surgeon of the femoral head 5, And can be released from the bowl-shaped orbicularis cup 65. The releasing member 801 has been changed from the first state to the second state because a predetermined deformation force has been applied to the releasing members 801. [

Figure 11 shows an embodiment in which the articulating bowl-shaped orbicular surface 65 includes releasing members 801 comprising holding members 802a, b capable of sliding relative to the femoral head 5, FIG. 5 shows an embodiment according to a medical device. FIG. The holding members are arranged in a first state in which the femoral head 5 which is a part of the ball attached to the column femur 6 or an artificial substitute thereof is inserted into the articular bowl- ) Can be maintained at the position of the hip joint. In the second state, the release member 801 can release the femoral head 5, or an artificial surrogate thereof, from the articular bowl-shaped orbicularis cup 65 disposed in the pelvic bone 9. The holding members 802a and 802b are spring loaded in that the springs 803a and b are mounted between the compensating members 804a and 804b and the holding members 802a and 802b. The force exerted on the holding members 802a, b from the springs 803a, b can maintain the femoral head 5 or its artificial alternate in the artificial rib 65 in normal, functional hinge motions, (5), or an artificial alternate thereof, from the artificial rib (65) when a predetermined deformation force is applied to the releasing member, resulting from abnormal movement of the hip joint, for example, as a result of falling of the patient Can be released. The correction screws 804a, b) allow pre-determination of the deformation forces that may cause the holding members 802a, b to change from the first state to the second state.

Figure 12 shows releasing members in a second state, preferably when the predetermined strain is exceeded as a result of, for example, the fall of the patient, which is caused by abnormal movement of the hip. The holding members 802a, b are retracted into the sleeves 806 of the artificial rib surface 65 to thereby compress the springs 803a, b. The withdrawal of the holding members 802a, b causes the femoral head 5, or its artificial surrogate, to dislocate / dislocate from their position at the articulating rib surface 65 because a large deformation force acts on the hip and femur 7, The risk of fracture of the femur 7 or pelvic bone 9 of the patient is reduced. The holding members 802a, b may be non-invasively changed from the first state to the second state and from the second state to the first state when a predetermined deformation force is applied to the holding members 802a, b have.

Fig. 13 is a perspective view of a portion of the femoral head 5 in the position of the articulating ribs 65, holding the femoral head 5, or its artificial surrogate, Members 802 and artificial ribs 65 are shown.

Fig. 14 shows an alternative embodiment of the principle shown in Figs. 11-13, wherein the holding members 802a, b are in contact with the femoral head 5, or its artificial alternate, Or an artificial surrogate thereof and the femoral head 5 or the artificial surrogate thereof may be inserted into the artificial ganglion 65 with the springs 803a, b supported by the correction screws 804a, b, Shaped members 805a, b that can be held by the holding members 802a, b, which exert forces on the femoral head 5, or an artificial alternate thereof,

Fig. 15 shows releasing members in a second state, preferably when a predetermined deformation force is exceeded, resulting, for example, as a result of a patient's fall caused by abnormal movement of the hip joint. The holding members 802a and 802b including the ball shaped members 805a and 805b are withdrawn into the sleeves 806 of the artificial rib surface 65 thereby compressing the springs 803a and b. The withdrawal of the holding members 802a and 802b causes the femoral head 5 or an artificial surrogate thereof to displace / dislocate from its position at the artificial rib surface 65, The risk of fracture of the femur 7 or pelvic bone 9 of the patient is reduced. The holding members 802a, b can be non-invasively changed from the first state to the second state and from the second state to the first state when a predetermined deformation force is applied to the holding members 802a, b , Which may allow the femoral head (5), or an artificial surrogate thereof, to be replaced at the artificial rib (65) without surgical procedures.

16 shows a medical device in an embodiment in which the release members 801 include a burst device 807, 808, 809 that can fail at a predetermined strain. According to this embodiment, the rupture device comprises a rupture attached to the base portions 809a, b through base portions 809a, b fixed to the artificial ribs 65 and weakened sections 808a, The rupturable portion 807a, b is in contact with the base portion 809a, b (807a, b), where a predetermined deformation force is applied to the rupture device in contact with the femoral head (5) 807, 808, 807, 807, 808, 809, including detached,

Fig. 17 shows a medical device according to the embodiment of Fig. 16 in the case where the rupturable device has failed due to an exceeding of the predetermined deformation force on the rupturable device. According to one embodiment, the rupturable portions 807a, b (not shown) are configured to secure the rupture portions 807a, b proximate the base portions 809a, b, even after failure of the rupturable device, and is held in the base portion through a security wire.

18A shows a medical device according to an embodiment in which artificial rib 65 comprises a circular sleeve 806, to which elastic or rupturable bands 810 are provided. The resilient or rupturable band 810 may surround at least a portion of the ball-shaped femoral head 5, or its artificial alternate. When a predetermined strain is applied to the resilient or rupturable band 810, the circular opening round the femoral head 5, or its artificial alternator, is inflated and the femoral head 5, or its artificial alternate, And is released from the artificial fork 65 held by the band 810. In an embodiment in which the medical device comprises a tear band 5, or a tear band 810 that holds the artificial surrogate thereof at the artificial tear bar 65, the weakened area 811 of the band 810 is malfunctioning, The circular opening round the femoral head (5), or its artificial surrogate, is expanded and the femoral head (5), or its artificial alternate, is released from the artificial rib (65). In embodiments where the band 810 is an elastic band 810, it may be contemplated that the band 810 comprises a resilient portion or zone, or the entire band 810 is made of an elastic material.

18b shows a cross section of the medical device in which the femoral head 5, or an elastic or rupturable band 810 holding the artificial surrogate thereof, is disposed in a circular sleeve 806 in the artificial ankle 65. Fig. Opening or weakening zone 811 is provided perpendicular to the circumference of band 810.

Fig. 19A shows a medical device in a second state when the femoral head 5, or an artificial surrogate thereof, is released from the connection with the ribs after a predetermined deformation force is applied to the elastic or rupturable band 810. Fig. 19B, the gap or weakened portion has been inflated, thereby allowing the femoral head, or its artificial surrogate, (5), to pass past the opening defined by the resilient or rupturable band (810). The medical device may be non-invasively changed from a first state to a second state and from a second state to a first state when a predetermined deformation force is applied to the band 810, The artificial surrogate can be replaced at the artificial ganglion 65 without surgical procedure.

20 shows a state in which the releasing member 801 is in contact with the femoral head 5 in the artificial fork 65 or the femoral head 5 having the greatest cross-sectional distance as the artificial substitute thereof, According to an embodiment including an elastic wing of an artificial fork 65 that is enclosed by a point of the prosthesis 65 and assisted by an elastic or rupturable band 810 that surrounds the medical device. FIG. The elastic or rupturable band 810 is held in the artificial fork 65 by a band 810 disposed in a groove along the circumference of the artificial rib 65. However, the grooves may be supplemented or replaced by adhesives or mechanical fastening elements.

Fig. 21 shows the medical device in the second state in which the release member 801 releases the femoral head 5, or an artificial surrogate thereof, from the artificial rib 65. Fig. In an embodiment in which the band 810 is an elastic band 810, it is inflated, thereby extending the bore through which the artificial alternate of the femoral head 5, or the like, can pass. In an embodiment in which the band 810 is a tear band, the band 810 is disabled such that the femoral head 5, or an artificial alternate thereof, And is held in position only by the releasing member 801 capable of releasing the artificial substitute. The medical device can be non-invasively changed from a first state to a second state and from a second state to a first state when a predetermined strain is applied to the band 810 and / or the release member 801 , Which allows the femoral head (5), or its artificial surrogate, to be replaced at the artificial ganglion (65) without surgical procedures.

22 shows a side view of a hip joint according to an embodiment in which the femoral head 5 or an artificial surrogate thereof and the column femur 6 are replaced by a portion 818 of an artificial organ fixed to the femoral bone 7 with or without bone cement. FIG. The artificial organ portion 818 includes a cavity 816 in which a rupture band 813 is located in the fixation portion 814 of the artificial femoral head 812, And an artificial femoral cannula 812, which is fixed to the body 815. The cavity 816 may allow the artificial femoral head 812 to perform a normal functional hip motion within the artificial fork 65. The rupture band 813 is configured to hold the artificial femoral head 812 in the first state so that the artificial femoral head 812 is retained in the artificial rib 65 and in a state where a predetermined deformation force is applied to the rupture band 813, Can be released from the ankle.

Fig. 23 shows an embodiment of a medical device according to Fig. 22 in a second state wherein the rupture band 813 is defective and thereby the artificial femoral cannula 812 is released from the artificial rib 69. The rupture band 813 can be fixed to the anchor 814 of the artificial femoral head 812 and / or the fixed portion 815 of the artificial fork 65 by using one or more screws, one or more screws But are not limited to, pins, form fittings, welding, adhesives, pins, wires, balls mounted in a bowl, A portion of the section, a key introduced into the lock as zones of the sections, a band, or other mechanical connecting members. The loss of function of the rupture band 813 is preferably caused as a result of an abnormal movement of the hip, for example a fall of the patient.

Figure 24 shows a portion 818 of an artificial organ where the prosthesis 818 is fixed to the femur 7 and in one state the fixed portion 814 of the artificial femoral prosthesis 812, And a cavity 816 that allows the hip joint to perform functional hip joint movements while being retained in the artificial ankle using an elastic band 817 secured to the anchor portion 815 of the artificial fork ligament 65. [ Two 812, and a release member 801 according to the embodiment shown in Figures 9 and 10. The combination of the release member 801 and the elastic band 817 maintains a portion 818 of the artificial organ in the artificial orifice 65 in the first state and the portion 818 of the artificial organ in the second state, (65). According to another embodiment (not shown), a portion of the artificial organ can be held in the artificial fork 65 using the elastic band 817 alone, as well as the remainder of the hip capsule, As shown in FIG.

Fig. 25 shows an embodiment of the medical setting according to Fig. 24 of the second state wherein the elastic band 817 is stretched so that the portion 818 of the prosthesis is released from the artificial rib part 65 of the artificial rib. The elastic band 817 may be secured to the anchor 814 of the artificial femoral head 812 and / or the anchor portion 815 of the artificial fork 65 using one or more screws, A ball mounted in a pin, a wire, a bowl, a male section mounted into the female section of the other section, A key, a band, or other mechanical connecting members that are introduced into the lock as zones of the portions. Malfunctioning of the tear band 813 preferably occurs as a result of abnormal motion of the hip, for example, a fall of the patient. Preferably, the elastic band 817 comprises a resilient portion or zone, which is made of an elastic material, such as an elastic polymeric material such as a copolymeric material such as polystyrene, poly (ethylene-butylene), or polystyrene And may be the entire elastic band 817. Wherein the material is selected from the group consisting of polyurethane elastomeric materials, polyamide elastomeric materials and polyester elastomeric materials, ethylene and one or more vinyl monomers such as, for example, vinyl acetates, unsaturated aliphatic monocarboxylic acid And also the resilient copolymers of esters of such monocarboxylic acids. The elastic band 813 may comprise a barrier coating that can not be penetrated by somatic cells. Preferably, the barrier coating is selected from the group consisting of Parylene ^TM Coatings, or coatings of biocompatible metals, such as gold, silver or titanium. According to other embodiments, the elastic band includes a spring-type member, a combination of metal and plastic materials, a combination of metal and carbon-based materials, or a combination of carbon and plastic-based materials.

Figure 26 shows a cross section of the hip joint in an embodiment including the portion 819 of the prosthesis in which the medical device can be secured to the femur 7. [ The portion of the prosthesis includes an artificial femoral head, which may include elastic elements 820 that act as a release member to hold the artificial femoral head within the artificial fork 65 fixed to the pelvic bone. The elastic elements 820 of the artificial femoral head are preferably made of an elastic material, which may be, for example, an elastomeric polymer material or an elastic metal material. It is contemplated that the resilient material includes an outer layer in contact with the artificial rib 65 that may resist abrasion from contact with the artificial rib surface. The elastic element can be compressed when a predetermined strain is applied to the hip joint and thereby added onto the elastic elements 820. When the elastic elements 820 are compressed, the artificial femoral head is released from the artificial fork 65.

Fig. 27 shows a medical device according to the embodiment shown in Fig. 26 of the second state, wherein the elastic element 820 has been compressed as a certain deformation force is applied to the medical device. The medical device is thereby deployed in a second state wherein the artificial femoral head is released from the artificial fork 65 in which it has been held.

Figure 28 illustrates an embodiment of a medical device in which the elastic elements 820 are assisted by a spring 821 in contact with two elastic elements 820, Is compressed along the elastic members 820 when added to the portion 819 of the artificial organ containing the artificial femoral head.

29A shows a state in which the femoral head 5 or an artificial surrogate thereof is held in the artificial fork 65 and in the second state the femoral head 5 or an artificial substitute thereof is removed from the artificial fork 65 And a cross section of the hip joint in the case of releasing the medical device. The medical device may be changed from a first state of existence to a presence of a second state at a predetermined strain that affects the medical device by connection with the pelvic bone 9 and the femur 7, (7) and / or the pelvic bone (9). The medical device includes magnets 823 or magnetic material 823 disposed on the artificial glenoid 65 and magnets 822 or magnetic material 822 disposed on the artificial surrogate of the femoral head 5 or the femoral head 5 do. According to one embodiment, the magnet 823 is placed in the artificial rib to have an antarctic pole towards the femoral head 5, or its artificial surrogate, and the magnet 822 is placed in the femoral head 5), or an artificial alternate thereof. However, one of ordinary skill in the art will readily recognize that only one of them needs to be magnetic, while the other only needs to contain magnetic material. Any combination of polar and magnetic pole ends and magnet / magnetic material can therefore be considered. The described magnetic force is used to maintain the femoral head (5), or its artificial surrogate, at the ribs in normal use, allow the hip to perform functional hip joint movements, and, when the prescribed strain is exceeded, 5), or an artificial substitute thereof, from the artificial rib 65.

Figure 29b shows the medical device according to the embodiment of Figure 29a in a second state in which the femoral head 5, or an artificial surrogate thereof, is released from the artificial fork 65 as a result of a certain level of deformation force being exceeded.

30A shows a medical device according to another embodiment in a first state, wherein the medical device includes a portion 818 of an artificial organ fixed to the femur 7. [ The portion 818 of the prosthesis may be separated along a separation line 860 disposed in the region of the femur. The proximal portion of the artificial organ is disposed in the artificial fork 65 and is then tightened to enable stable anchoring of the artificial organ's portion 818 to the pelvic bone 9. By allowing the portion of the prosthesis to become detachable, the portion of the prosthesis includes two portions 861 and 862, wherein the first portion 861 can be disposed in the artificial ankle 65, The second portion 862 may be secured to the pelvic bone 9. The first 861 and second 862 portions may be affixed to the brake pin 863 disposed in the aperture of the portion 818 of the prosthesis The brake pin 863 here holds the first piece 861 attached to the second piece 862 in the first state and in the second state the first piece 861 To release the second piece 862 from the second piece 862. The brake pin 863 can be split and when a predetermined deformation force is applied to the release member, 1 state to the second state.

Fig. 30B shows a state in which the break pin 863 is disabled and thereby the first piece 861 is released from the second piece 862 from the first state to the second state, according to the embodiment of Fig. FIG.

Figures 30c and 30d illustrate the removal of dislodged brake pins 863 (Figure 30C) and the replacement of the disabled brake pins 863 (Figure 30D) 863 are shown. The fact that the segment 860 is in the region of the column femur and not in the femur 5 or in the anchoring region to the pelvic bones 9 means that the portion 818 of the prosthesis is located in the femur 5 and the pelvic bone 9 It is possible to release the first portion 861 from the second portion 862 when the force exceeding a predetermined value is exceeded while maintaining the fixation of the prosthesis, have.

31 diagrammatically shows how the artificial fork goes beyond the maximum diameter of the femoral head 5, or its artificial surrogate. That is, the maximum cross-sectional distance of the maximum opening 52 is less than the maximum cross-sectional distance of the femoral head 5 or its artificial surrogate.

Figure 32 illustrates a medical device according to an embodiment in which the second piece includes an inner surface 906 and an outer surface 907. [ The inner surface 906 includes a first point 908a, a second point 909a, a third point 908b, a fourth point 909b, a fifth point 908c, and a sixth point 909c And all the points are located at different positions along the long axis of the inner surface. The first straight line 910a is parallel to the second straight line 910b from the first point 908a to the second point 909a and from the third point 908b to the fourth point 909b, Is parallel to the third straight line 910c from the fifth point 908c to the sixth point 909c. The first 910a and third 910c straight lines are shorter than the second straight line and the second straight line is located between the first and third straight lines. .

Figure 32c shows a medical device in which a medical device is passed over a point having a maximum cross-sectional distance of the femoral head 5, or an artificial surrogate thereof, and the medical device is rolled up by wrapping the femoral head 5, The release member 801, which is assisted by an encasing elastic or rupturable band 810, comprises an elastic wing of the medical device. An elastic or rupturable band 810 is disposed and held in the medical device by a band 810 located in the groove along the circumference of the medical device. However, the grooves can be supplemented or replaced by adhesives or mechanical fastening elements.

Fig. 32d shows the medical device in the second state, where the release member 801 releases the femoral head 5 or its artificial surrogate from the medical device. In an embodiment in which the band 810 is an elastic band 810, it can be inflated, thereby extending the hole through which the femoral head 5, or its prosthetic alternate, can pass. In an embodiment where the band 810 is a rupture band, the band 810 is inoperable so that the femoral head 5, or an artificial surrogate thereof, has a pre- Is held in position solely by release member 801 which is part of an expansion portion capable of releasing its artificial surrogate. The medical device may non-invasively change from a first state to a second state and from a second state to a first state when a predetermined deformation force is applied to the band 810 and / or the release member 801, The femoral head (5), or its prosthetic replacement, can be replaced in the medical device without surgical procedures.

In an opposite embodiment

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Figure 33 shows the hip joint surface when the artificial femoral bifurcation surface 112 is fixed to a surgically deformed femoral head comprising a concave articular orbital surface 110 disposed in a surgically modified femoral head do. According to the embodiment shown in Figure 33, an elongated member 206 is used as a guiding rod that guides and centers the artificial glenoid surface within the hip, and the artificial femur two surfaces. The convex hinge surface 112 maintains the artificial femoral head in the first state, releases the artificial femoral head in the second state, and releases the artificial thigh from the first state to the second state when the predetermined deforming force is exceeded, Is secured to the member (801). The release member is fixed to the surgically deformed femoral head using screws 121. [ The surface of the locking element 117 and the concave hinge surface 117 may be made of a material that is disposed in connection with the convex hinge surface and that reduces friction, such as PTFE or a self-lubricating powder material. However, it may also be considered to be lubricated using an implantable lubrication system capable of lubricating the medical device after the medical device has been implanted in a human patient, a solution that can be considered in all of the above embodiments . According to the illustrated embodiment, the elongated member 206 is inserted through the femur, but according to other embodiments, not shown, is disposed within the hip joint from the elongated member apogeocardial side.

Figure 34 shows the placement of a portion 118 of the prosthesis that can occupy the hole 18 created in the pelvic bone 9. [ The portion 118 of the prosthesis includes support members 119 that are adapted to be brought into contact with the pelvic bone 9 and to support loading of a load added to the medical device from the weight of the human patient. 34 shows that the nut 120 is fastened to the attachment rod 113, which is then guided by the elongated member 206 acting as a guide rod.

35 shows a section of the hip joint when all the elements of the medical device are secured in or around the area of the hip. The portion 113 of the prosthesis that is intended to occupy the hole 18 in the pelvic bone 9 is fixed here with screws 121 which are in between the portion of the prosthesis and the pelvic bone 9 Or may be replaced by an adhesive that may be applied between the surfaces of the substrate. The elongated member 206 acting as a guide rod was withdrawn through an incision in the thigh.

The elastic or flexible portion, piece or zone of any of the embodiments herein may comprise an elastomeric polymeric material, such as a copolymeric material such as polystyrene, poly (ethylene-butylene), or polystyrene. It is also contemplated that the material may be selected from the group consisting of polyurethane elastomeric materials, polyamide elastomeric materials and polyester elastomeric materials, ethylene and one or more vinyl monomers such as vinyl acetates, unsaturated aliphatic monocarboxylic acids, And copolymers of esters of such monocarboxylic acids with elasticity. The elastic band 813 may comprise a barrier coating that can not be penetrated by somatic cells. Preferably, the barrier coating comprises a Parylene ^TM coating, or a coating of a biocompatible metal, such as gold, silver or titanium. According to other embodiments, the elastic band includes a spring-type member, a combination of metal and plastic materials, a combination of metal and carbon-based materials, or a combination of carbon and plastic-based materials.

The artificial rib may, according to any embodiment, have one or more screws, one or more pins, one or more sections of one or more sections that may be introduced into another section, the sections may be slid into another section, A ball mounted in a bowl that is a zone of the above parts, a zone of one part mounted in a dark area of another part, a key, band or other machine And may include one or more portions that can be secured to the pelvic bone using a connecting member.

36A shows an embodiment of a lock / release member 116 wherein the lock / release member 116 is in contact with a first piece artificial convex hinge surface (112 of FIG. 36B) The locking member 116 locks the artificial femoral head 112 in the artificial femoral surface (FIG. 36B, 1340) in the first state, and in the second state, , The artificial femoral head 112 can be released from the artificial fork 1340. The lock / unlock member 116 can be changed from the first state to the second state when a predetermined amount of deformation force is applied on the lock / unlock member 116. [ Release member 116 according to the embodiment shown in FIG. 28B includes four holding members, which are elastic portions 1351, and the locking / releasing member 116 is made of elastic members 1351 From the first state to the second state. The locking member 116 can be fixed to the femur 7 using screws that fit into the holes 1352. [ According to another embodiment (not shown), the holding members 1351 include one or more holding members that are rotatable relative to the first piece, which are artificial convex hinge surfaces 112.

36B shows a cross section of the hip joint when the two state locking / releasing members 116 lock the artificial femoral head 112 to the artificial fork 1340. Fig. Releasing member 116 is secured to the femur 7 using screws 121 where it is shown in a first state wherein the locking / releasing member 116 engages the artificial femoral head 112, To the artificial forklift 1340.

36C shows a section of the hip joint according to the embodiment of FIG. 36B, but with two state locking / releasing members 116 in a second state, wherein the locking / releasing member 116 is in contact with the artificial femoral head 112, From the artificial rib surface 1340. The structure with this locking / releasing member 116 reduces the risk of deforming forces on the artificial joints that damage the anchoring points, i.e., contact with the bones; This further allows the artificial joint to be non-invasively relocated in the event of dislocation.

Figure 36d shows an alternative embodiment of a two-state (two-state) locking / releasing member 116 wherein the two-state locking / And an elastic band 1361 capable of rounding the ring-shaped portion 1360. As shown in Fig. The elastic band 1361 can be an elastic polymer band, such as a polyurethane or silicone band.

Fig. 36E shows a section of the hip joint when the two-state locking / releasing member 116 is implanted and in the first state. The two-state lock / release member 116 is fixed to the femur 7 using screws 121. [

Figure 36F illustrates an implantable device including a two-state locking / releasing member 116 in a second state, i.e., wherein the locking / releasing member 116 is configured to rotate the artificial femoral head 112 The artificial femoral head 112 can be released through the elastic band 1361 being stretched so that the artificial femoral head 112 can escape from the artificial fork 1340. The structure with the lock / release member 116 reduces the risk of anchoring points to the ankle joints that compromise contact with the bones; This also allows the artificial joint to be relocated non-invasively in the event of dislocation.

Release member 116 described with reference to Figs. 36A-36F is depicted in the examples with the large bore of the pelvic bone 9 occupied by the portion 118 of the prosthesis, but a less invasive procedure It is equally conceivable that the two-state locking / releasing member 116 is used in embodiments with a small hole in the pelvic bone 9, and further that all embodiments disclosing the medical device may be used with a hip capsule It is possible to consider that it can also be installed during the traditional open hip surgical procedure. In this case, the bi-state lock / release member 116 may be part of a full artificial organ, such as the prosthesis disclosed with reference to Figures 22-28.

Figure 36g illustrates an embodiment of a lock / release member 116 wherein the lock / unlock member 116 is configured to move from a first state to a second state to release the artificial femoral head 112 from the artificial rib 1340. [ And a spring 1371 that generates elasticity necessary for changing the direction of rotation. The lock / unlock member 116 can be changed from the first state to the second state when a predetermined amount of deformation force is added to the lock / unlock member 116. [ According to the embodiment shown in Figure 36g, the medical device further comprises a calibration screw (not shown) associated with the spring 1371 for the purpose of correcting the capacity of the resilient force necessary to change the resilient and / (1372).

Figure 36h illustrates an embodiment of a lock / unlock member that includes four rupturable fins 1373 that may fail at a predetermined strain to allow the lock / unlock members 116 to change from a first state to a second state. Fig. The fins, according to this embodiment, are made of a brittle material, which can be applied to certain patients. In other embodiments (not shown), the rupture fins 1373 may be used as a rupture band similar to an elastic band, but capable of being impaired at a predetermined deformation force, or as a rupture band disposed centrally ≪ / RTI >

Figure 36i shows a section of the hip joint in which the artificial femoral head 1375a, b comprising two parts 1375a and 1375b can be interconnected to form an interconnection artificial femoral head. Each of the two artificial portions 1375a, 1375b further includes a fixating portion 1374a, 1374b that can be secured within the ankle 8. The artificial femoral head may be disposed in the artificial concave glenoid 1340 disposed at the base of the femur 7 to form a functional hip joint in the reverse embodiment after the interconnection.

36J shows a cross-section of the hip joint when the interconnected artificial femoral head 1375 is disposed within the ankle 8 and is secured using the securing portion 1374. Fig. The locking / unlocking member 116 is mounted on the artificial femoral head 1375 using a spring 1371 in which the artificial femoral head 1375 is disposed to form an elastic force so that the locking / .

36K shows a cross section of the hip joint when the two-state locking / releasing member 116 locks the artificial femoral tooth 1375 interconnected with the artificial fork 1340. Fig. Releasing member 116 is secured to the femur 7 using screws 121 and wherein the locking / releasing member 116 moves the artificial femoral head 112 to the artificial forklift 1340 Locked state < / RTI >

Figure 36m shows a cross section of the hip joint in accordance with the embodiment of Figure 36k but with the two-state locking / releasing member 116 in the second state wherein the locking / releasing member 116 urges the artificial femoral head 112 From the artificial rib surface 1340 by a spring 1371 that forms an elasticity. The structure with the lock / release member 116 reduces the risk of strain on the ankle joints, which impairs attachment points, i.e., points of contact with the bones; This further allows the artificial joint to be relocated non-invasively in the event of dislocation.

It is noted that any method or portion of any embodiment or embodiment of course may be combined in any manner. All embodiments herein are to be understood as being part of the generic description and thus any combination of the methods in general terms is possible.

Claims (15)

A permanent damage to at least one of the femoral bone 7, the pelvic bone 9, the parts of the artificial hip joint, and the anchor between the artificial hip and at least one of the femur and the pelvic bone A medical device for preventing the risk of a malfunction,
The first and second pieces, and
A releasing member (801) holding the first piece to adhere to the second piece in a first state and releasing the first piece from the second piece in a second state,
Lt; / RTI >
The releasing member can be changed from the first state to the second state when a predetermined strain is placed on the releasing member,
Wherein the medical device further comprises a calibration member (804) for correction of a predetermined deformation force required of the release member to change from the first state to the second state,
Medical device. The method according to claim 1,
Wherein the compensation member is a compensation screw. 3. The method according to claim 1 or 2,
Said first piece comprising:
a. A ball shaped piece 812 replacing at least the surface of the caput femur 5 of the hip joint,
b. A bowl-shaped piece 65 replacing at least the acetabulum surface 11 of the hip joint,
≪ / RTI > The method of claim 3,
Wherein said ball piece is secured to said bowl-shaped piece using said release member, The method of claim 3,
a. The ball-shaped piece of the medical device including the release member,
b. The second piece of the medical device comprising the release member, and
c. Wherein a bowl-shaped piece of the medical device includes the release member
, The medical device 3. The method according to claim 1 or 2,
Wherein the releasing member comprises an elastic portion. 3. The method according to claim 1 or 2,
Wherein the release member comprises a magnet (822; 823) capable of holding the first piece in the second piece. The method of claim 3,
Wherein the release member comprises an elastic band (813; 810) 9. The method of claim 8,
The elastic band
a. Encircle at least a portion of the ball-shaped piece, and
b. A piece placed between the ball-shaped piece and the bowl-shaped piece
, The medical device 3. The method according to claim 1 or 2,
Wherein the release member comprises a rupture device (813; 807; 808; 809) capable of failing at a predetermined strain. 3. The method according to claim 1 or 2,
Wherein the releasing member comprises multiple holding members (802; 805). 12. The method of claim 11,
The multiple holding members
a. One that can slide relative to the first piece, and
b. What is capable of rolling about the first piece
Wherein the medical device is at least one of: 3. The method according to claim 1 or 2,
Wherein the releasing member comprises a locking member for locking a second piece which is an artificial substitute of a rib in the hip joint so as to fasten a second piece which is an artificial substitute of the femoral head when implanted in a patient's hip,
Wherein,
Assist in securing the medical device in situ,
Lock the artificial surrogate of the femoral head so that it is tightened and constrained to the inner surface until released by the release member,
At the time of implantation, locking at least one extension, including at least an end of the extension radially fixed within an extension of the circle,
And lockable at least in the first and second locking portions. 14. The method of claim 13,
The locking member can be locked at least in the first and second locking portions,
Wherein the locking member is configured to cause the first locking portion to lock the interior surface of the articulating rib with the at least one extending portion into a first size artificial femoral head and in the second locking portion, 2-sized artificial femoral head. 14. The method of claim 13,
Wherein at least one extension has a shape or position such that upon implantation the restriction of the range of motion of the hip joint is limited to an angle from a maximum movement in at least one predetermined direction different from any other direction.

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