KR20120062706A - Hip joint device and method - Google Patents

Abstract

A hip artificial organ according to the present invention that can be implanted into a hip joint of a patient is provided. The hip prosthesis includes a first region and a second region, the first region comprising a first material that may be elastic, and the second region comprising a second material that may be elastic, the first region The material may be larger in elasticity than the second material.

Description

Hip joint device and method {HIP JOINT DEVICE AND METHOD}

The present invention generally relates to hip joint prosthesis.

Hip osteoarthritis is a syndrome in which a low grade of inflammation causes pain in the hip joint caused by abnormal wear of the cartilage, which acts as a cushion in the hip joint. This abnormal wear of cartilage also reduces joint lubrication, called synovial fluid. Hip osteoarthritis is estimated to affect some 80% of people over age 65 in some serious form.

Current treatments for hip osteoarthritis include localization of NSAID drugs, hyaluronic acid or glucocorticoids to assist lubrication of the hip joint and to replace the hip joint with artificial organs through hip surgery. Infusion is included.

Replacement of the hip joint is one of the most common surgeries to date performed worldwide in thousands of patients each year. The most common methods include placing metal artificial organs in the femur and placing plastic bowls in the acetabulum. This surgery is done through a lateral incision in the hip and upper thigh and through the fascia lata and lateral muscles of the femur. To access the joint, it is necessary to penetrate the supportive hip capsule attached to the femur and the ilium. The femur is then cut at the neck with a bone saw, and the artificial organ is placed in the femur with or without bone cement. The tibia is slightly expanded using an acetabular reamer, and the plastic bowl is positioned using a screw or bone cement.

Metallic artificial organs located within the femur are typically harder than human bones, in many cases damaging the femur bone at the point where the artificial organ is anchored to the femur bone. The difference in elasticity between the femur bone and the hip artificial organ also affects the fixation of the artificial organ. Loosening the artificial organs is the most common reason for the need for reoperation of the hip joint, and the difference in elasticity between the artificial organs and the femur bones creates tension at the fixation points, which promotes the loosening of the artificial organs.

A further problem when having artificial organs that are not rigid enough, or elastic, is that the artificial organs fully assume the load bearing from the natural bones, causing the bones to shrink and reducing the formation of new bone tissue. Ultimately, this process propagates the loosening of artificial organs. Deformation at the contact surface additionally comes from more extensive deformations in accident situations, such as shocks that normally propagate through the body when walking, or when a person falls. Rigid prostheses do not act in a shock-absorbing manner, so that the entire impulse is transmitted to the contact surface where the prosthesis is anchored to the femur bone.

Accordingly, it is an object of the present invention to provide a hip artificial organ having elastic properties similar to bone at the point of fixing the artificial organ to the bone, and / or a hip artificial organ that absorbs shock in a manner similar to or enhanced with a natural hip joint. To provide.

Hip prostheses have been provided that can be implanted into a patient's hip joint. Hip prosthesis includes a first region and a second region, the first region comprising a first material or portion of material that may be elastic, and the second region of the second material or material that may be elastic And a portion of the first material or material may be greater in elasticity than the portion of the second material or material.

According to one embodiment, the hip joint organ further comprises a first end and a second end positioned along a longitudinal axis of the hip joint organ. The first end comprises a portion of the first material or material and the second end comprises a portion of the second material or material. When the hip prosthesis is implanted in a patient, the proximal portion of the hip prosthesis may include the first end, and the distal end of the hip prosthesis may include the second end.

According to one embodiment, the hip artificial organ is gradually increasing in elasticity from the first end to the end.

According to another embodiment, the hip artificial organ further comprises a third region, a fourth region, and a fifth region, the third region comprising a third material or portion of material, wherein the fourth region is formed of a third region. Four material or portion of material, wherein the fifth region comprises a fifth material or portion of material, and the first, second, third, fourth and fifth material or portion of material comprises a net attraction force ( connected to each other through net attractive forces.

According to one embodiment, the first material or portion of material may be more elastic than the second material or portion of material, and the second material or portion of material is elastic than the third material or portion of material May be larger, wherein the third material or portion of material is more elastic than the fourth material or portion of material, and the fourth material or portion of material is elastic than the fifth material or portion of material This can be bigger.

According to one embodiment, the first material or portion of material may be more elastic than the second material or portion of material, and the second material or portion of material is elastic than the third material or portion of material May be larger, the third material or portion of material may be less elastic than the fourth material or portion of material, and the fourth material or portion of material is elastic than the fifth material or portion of material This can be smaller.

According to one embodiment, the first material or portion of material may be more elastic than the second material or portion of material, and the second material or portion of material is elastic than the third material or portion of material May be larger, wherein the third material or portion of material is more elastic than the fourth material or portion of material, and the fourth material or portion of material is elastic than the fifth material or portion of material This can be smaller.

According to one embodiment, when the hip prosthesis is implanted in a patient, the first area is the most recent of the first, second, third, fourth and fifth areas, the second area is A second most recent area among the first, second, third, fourth and fifth areas, and the third area is the third most recent area among the first, second, third, fourth and fifth areas. The fourth region is a fourth most recent region among the first, second, third, fourth and fifth regions, and the fifth region is the first, second, third, fourth and fifth regions. It is a 5th most recent area of 5 areas.

According to one embodiment, the first material or portion of material may be more elastic than the second material or portion of material, and the second material or portion of material is elastic than the third material or portion of material May be larger, wherein the third material or portion of material is more elastic than the fourth material or portion of material, and the fourth material or portion of material is elastic than the fifth material or portion of material This can be bigger.

According to one embodiment, the first material or portion of material may be more elastic than the second material or portion of material, and the second material or portion of material is elastic than the third material or portion of material May be larger, the third material or portion of material may be less elastic than the fourth material or portion of material, and the fourth material or portion of material is elastic than the fifth material or portion of material This can be smaller.

According to one embodiment, the first material or portion of material may be more elastic than the second material or portion of material, and the second material or portion of material is elastic than the third material or portion of material May be larger, wherein the third material or portion of material is more elastic than the fourth material or portion of material, and the fourth material or portion of material is elastic than the fifth material or portion of material This can be smaller.

According to one embodiment, the first, second, third, fourth and fifth materials or portions of the materials all include any combination of other materials or other portions of the same material, all of the materials or of the materials All other parts have different elasticities.

The hip joint includes the corpus callosum, which is the bowl shaped portion of the pelvic bone. The hip artificial organ may further comprise a connection section comprising a connection surface. The connecting surface comprises a first surface material or a portion of material having an average elasticity, which surface may be connected with an osteoclast or an artificial replacement of an osteoclast. The hip prosthesis further includes a fixation section comprising a fixation surface. The fixation surface comprises a second surface material or portion of material with average elasticity that can assist in securing the hip artificial organ to the femur bone of the patient.

According to one embodiment, the average elasticity of the first surface material or portion of material is less than the average elasticity of the second surface material or portion of material.

(material)

According to one embodiment, the hip joint organ may comprise a metal, the metal may be a metal alloy, and the alloy may comprise steel and / or biocompatible metal.

According to one embodiment, the percentage of martensite is higher in the first surface material or part of the material than in the second surface material or part of the material.

It is also conceivable that the hip joint organ comprises a polymeric material.

In embodiments where the hip artificial organ includes portions of the first and second materials or materials, it is conceivable that the portions of the first and second materials or materials comprise metal. The metal material or portion of the material may be a metal selected from the group consisting of steel, steel alloys, titanium, titanium alloys and biocompatible metals. In embodiments where the hip artificial organ comprises a first, second, third, fourth and fifth material or portion of material, the first, second, third, fourth and fifth material or portion of material Silver is both a metal material and the metal material may be a metal selected from the group consisting of steel, alloys comprising steel, titanium, titanium alloys and biocompatible metals.

(Fixed section)

According to one embodiment, the hip artificial organ may be fixed to the neck femur. In such a case, the artificial organ may be fixed to the neck femur inside the neck femur. In other embodiments, the hip joint organ may be anchored to the femur bone, in which case the hip joint organ may be anchored inside the femur bone.

(Connection section)

According to one embodiment, the connecting section comprises a ceramic material or part of a material which may be titanium carbide.

(Material connected via net attraction)

According to one embodiment, the hip artificial organ includes a first region and a second region connected to each other via net attraction. The first region includes a first material or portion of material that may be elastic, and the second region includes a second material or portion of material that may be elastic, and the first material or portion of material may comprise the first material; 2 may be greater elastic than the material or portion of the material.

According to one embodiment, the hip artificial organ further comprises a first end and a second end located at the longitudinal axis of the hip artificial organ. The first end comprises a portion of the first material or material and the second end comprises a portion of the second material or material.

According to one embodiment, when the hip prosthesis is implanted in a patient, the proximal portion of the hip prosthesis includes the first end and the distal end of the hip prosthesis includes the second end. It is also conceivable that the hip artificial organ gradually increases elasticity from the second end to the first end.

According to one embodiment, the hip artificial organ further comprises a third region, a fourth region, and a fifth region. The third region comprises a third material or portion of material, the fourth region comprises a fourth material or portion of material, and the fifth region comprises a fifth material or portion of material. The first, second, third, fourth and fifth materials or portions of material are connected to each other via net attraction.

According to one embodiment, the first material or portion of material may be more elastic than the second material or portion of material, and the second material or portion of material is elastic than the third material or portion of material May be larger, wherein the third material or portion of material is more elastic than the fourth material or portion of material, and the fourth material or portion of material is elastic than the fifth material or portion of material This can be bigger.

According to another embodiment, the first material or portion of the material is more elastic than the second material or portion of the material, and the second material or portion of the material is more elastic than the third material or portion of the material And may be less elastic than the fourth material or portion of the material, and the fourth material or portion of the material may be less elastic than the fifth material or portion of the material.

According to another embodiment, the first material or portion of the material is more elastic than the second material or portion of the material, and the second material or portion of the material is more elastic than the third material or portion of the material Larger, the third material or portion of the material may be more elastic than the fourth material or portion of the material, and the fourth material or portion of the material may be less elastic than the fifth material or portion of the material. .

According to one embodiment, when the hip prosthesis is implanted in a patient, the first region is the most recent of the first, second, third, fourth and fifth regions, the second region is A second most recent area among the first, second, third, fourth and fifth areas, and the third area is the third most recent area among the first, second, third, fourth and fifth areas. The fourth region is a fourth most recent region among the first, second, third, fourth and fifth regions, and the fifth region is the first, second, third, fourth and fifth regions. It is a 5th most recent area of 5 areas.

According to one embodiment, the first material or portion of material is more elastic than the second material or portion of material, and the second material or portion of material is more elastic than the third material or portion of material The third material or portion of material may be greater in elasticity than the fourth material or portion of material, and the fourth material or portion of material may be larger in elasticity than the fifth material or portion of material.

According to one embodiment, the first material or portion of material is more elastic than the second material or portion of material, and the second material or portion of material is more elastic than the third material or portion of material And may be less elastic than the fourth material or portion of the material, and the fourth material or portion of the material may be less elastic than the fifth material or portion of the material.

According to one embodiment, the first material or portion of material is more elastic than the second material or portion of material, and the second material or portion of material is more elastic than the third material or portion of material The third material or portion of material may be greater in elasticity than the fourth material or portion of material, and the fourth material or portion of material may be less elastic than the fifth material or portion of material.

The hip joint includes the osteoblasts, which are the bowl-like portion of the pelvic bone. The hip prosthesis according to any one of the embodiments may further comprise a connection section comprising a connection surface. The connecting surface comprises a first surface material or a portion of material having an average elasticity, which surface may be connected with an osteoclast or an artificial replacement of an osteoclast. The artificial organ further comprises a securing section comprising a securing surface. The fixation surface comprises a second surface material or portion of material with average elasticity that can assist in securing the hip artificial organ to the femur bone of the patient.

According to one embodiment, the average elasticity of the first surface material or portion of material is less than the average elasticity of the second surface material or portion of material.

(material)

According to one embodiment, the hip joint organ may comprise a metal, such as a metal alloy, and the alloy may comprise steel and / or biocompatible metal.

According to one embodiment, the percentage of martensite is higher in the first surface material or part of the material than in the second surface material or part of the material.

According to one embodiment, the hip artificial organ comprises a polymeric material.

In embodiments where the hip joint organ includes portions of the first and second materials or materials, it is conceivable that the portions of the first and second materials or materials are metal. The metal material may comprise a metal selected from the group consisting of steel, steel alloys, titanium, titanium alloys and biocompatible metals.

According to another embodiment, the first, second, third, fourth and fifth materials or portions of the material may be metal materials, the metal material being steel, alloys including steel, titanium, titanium alloys and Metals selected from the group consisting of biocompatible metals.

(Fixed section)

According to one embodiment, the hip artificial organ may be fixed to the neck femur, and the fixation may be from inside the neck femur.

According to another embodiment, the hip artificial organ may be secured to the femur bone, and the fixation may be from within the femur bone. Combinations of the above embodiments are also conceivable.

(Connection section)

According to one embodiment, the connecting section comprises a ceramic material such as titanium carbide. It is also conceivable that the material of the connecting section is a porous material.

(Bending and twisting)

The hip prosthesis may comprise a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section. The hip prosthesis according to any one of the embodiments may have an intermediate section that can be elastically deformed through an intermediate section that can be curved when exposed to a force, or that can be twisted when exposed to a force. The hip prosthesis may be elastically deformed through the intermediate section, which may be curved and twisted when exposed to force.

While the fixation section remains fixedly attached to the femur bone, the intermediate section may be bent in a curve with κ> 2, in accordance with one embodiment, and with a curve with κ> 4, in another embodiment. Can be bent and, according to another embodiment, can be bent in a curve with κ> 8.

While the fixation section remains fixedly attached to the femur bone, the intermediate section may be twisted to an angle of twisting of (φ)> 0.005π, according to one embodiment, in accordance with another embodiment , may be twisted up to an angle of twisting of (φ)> 0.01π, and according to another embodiment, may be twisted up to an angle of twisting of (φ)> 0.02π. It is also contemplated that the intermediate section may be bent in a curve with κ> 2 and twisted to an angle of twist of (φ)> 0.005π while the anchoring section remains fixedly attached to the femur bone. Can be.

(Way)

Further provided is a method of absorbing force in the hip joint of a patient using the hip prosthesis according to any one of the above embodiments. The method includes the step of elastically deforming the hip prosthesis, and the step of elastically deforming the hip prosthesis further comprises: the material of the first region of the hip prosthesis when exposed to force. Elastically deforming and deforming the material of the second region of the hip artificial organ less elastically than the material of the first region of the hip artificial organ when exposed to force.

According to one embodiment, said step of elastically deforming said material of said first region of said hip artificial organ when exposed to said force comprises: deforming said material more elastically than material of the femur bone. And wherein the material of the second region of the hip artificial organ is less elastically deformed than the material of the first region of the hip artificial organ when exposed to the force, wherein the material is a femur bone Elastically deforming substantially the same as the material of.

According to another embodiment, the step of elastically deforming the material of the first region of the hip artificial organ when exposed to the force may include the step of deforming the material more elastically than the material of the femur bone. And wherein said material of said second region of said hip artificial organ is less elastically deformed than said material of said first region of hip joint organ when exposed to said force, wherein said material is said And elastically deforming substantially the same as bone cement used to secure the hip artificial organ to the femur bone.

According to one embodiment, the hip joint organ includes a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section. The step of elastically deforming the hip prosthesis when exposed to the force may be achieved when the fixed section remains fixedly attached to the femur bone and the femur bone remains intact, when exposed to the force. Bending the intermediate section curved, or twisting the intermediate section when exposed to the force, or bending and twisting the intermediate section when exposed to the force.

While the fixation section remains fixedly attached to the femur bone, the middle section is bent in a curve with κ> 2, according to one embodiment, and in a curve with κ> 4 according to another embodiment. , According to another embodiment, bent in a curve with κ> 8.

While the fixation section remains fixedly attached to the femur bone, the intermediate section is twisted to an angle of twisting of (φ)> 0.005π, according to one embodiment, or according to another embodiment, twisted to an angle of twisting of φ)> 0.01π, or twisted to an angle of twisting of (φ)> 0.02π, according to another embodiment.

It is also conceivable that while the fixation section remains fixedly attached to the femur bone, the intermediate section is bent in a curve with κ> 2 and twisted to an angle of twisting of (φ)> 0.005π. It is also conceivable that while the fixation section remains fixedly attached to the femur bone, the intermediate section is bent in a curve with κ> 2 and twisted to an angle of twisting of (φ)> 0.005π.

According to one embodiment, when implanted, the proximal portion of the hip prosthesis includes the first end, the distal end of the hip prosthesis includes the second end, and the hip prosthesis from the top It further has a hard, less elastic layer on the surface of the first end.

According to one embodiment, below / end of the upper rigid less elastic layer at the surface of the first end, the artificial organ is substantially elastic, and at the distal end it is progressively less elastic.

According to one embodiment, the portion of the artificial organ that becomes progressively less elastic toward the distal end is ending at the distal end where the artificial organ contacts the femur bone when implanted.

According to one embodiment, the portion of the artificial organ located in the femur bone gradually becomes more elastic in the distal direction when implanted.

According to one embodiment, the portion of the artificial organ located within the femur bone has elasticity close to that of the bone.

It should be noted that any embodiment or portion of an embodiment and any method or portion of a method may be combined in any manner.

1 is a side view of a patient when conventional hip surgery is performed.
2 is a front view of a patient when an incision is made by a surgical method.
3 is a front view of a patient when an incision is made in the laparoscopic method.
4 is a front view of a patient and tool of the laparoscopic method.
5 is a cross-sectional view of a patient when the laparoscopic method is performed.
6 is a diagram of a hip artificial organ according to one embodiment.
7 is a diagram of a hip artificial organ according to one embodiment.
8 is a detailed view of a hip artificial organ according to one embodiment.
9 is another detailed view of a hip artificial organ according to one embodiment.
10 is a detailed view of a hip artificial organ according to one embodiment when secured to the femur bone.
FIG. 11 is a detailed view of a hip artificial organ according to one embodiment when secured to a neck femur. FIG.
12 is a diagram of a hip artificial organ according to one embodiment.
13 is a diagram of a hip artificial organ according to one embodiment.
14 is a view of the hip joint organ and other parts of the hip joint organ.
15 is a diagram of a hip artificial organ with curvature.
15A is a diagram schematically illustrating how torsion affects a portion of a hip artificial organ.

Embodiments of the present invention will now be described by way of example with reference to the accompanying drawings.

Elasticity should be understood as the ability of a material to deform in an elastic manner.

Elastic deformation occurs when the material deforms under stress (eg), but returns to its original shape when the stress is removed. More elastic materials should be understood as materials with low modulus of elasticity. The elastic modulus of an object is defined as the slope of the stress-strain curve of the object in the elastic deformation region. The modulus of elasticity is calculated as stress / strain, where stress is the force that generates the strain divided by the region to which the force is applied, and strain is the rate of change that occurs in the stress.

Stiffness should be understood as the resistance of the elastic body to deformation by applied forces.

Net attraction is to be understood as the attraction that causes materials to be connected to each other at the atomic or molecular level. These net attraction forces can be van der Waals forces, bipolar forces, or covalent forces. The materials connected via net attraction may be the same material, the same base material by different treatments, or other materials fixed to each other through some kind of bonding force.

The proximal part of the hip prosthesis should be understood as the proximal location in the patient when implanted. Thus, the proximal portion is the portion that includes the connecting portion that connects with the tibia. The distal part should be understood as the part of the artificial organ that is located at the distal end in the patient when implanted. The distal portion includes a fixation portion capable of securing the artificial organ to the femur bone and / or the neck femur.

A part of a material should be understood as a part of a material that does not necessarily have the same properties as another part of the same material, for example, a part of a metal material may be a different part of the metal material even if two parts are part of the same base material. Can be cured differently, which is similar for polymer and ceramic materials.

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

Metal alloys are to be understood as mixtures of two or more elements in a solid solution whose main component is a metal. Thus, steel alloys are alloys in which steel, which is an alloy of iron and carbon, is one of the components. Therefore, a titanium alloy is an alloy whose one component is titanium.

Martensite is a steel crystal structure in a very hard form, but is also any crystal structure formed by displacive transformation. It contains a kind of hard mineral which arises as a lath or plate crystal grain.

According to one embodiment, the hip artificial organ is a steel alloy artificial organ, such as a stainless steel artificial organ, and one of the ends of the artificial organ may be connected with the coronary sphere, which is the bowl-shaped part of the pelvic bone. The connection has a less elastic surface that can withstand wear better than the rest of the artificial organ. Less elastic surfaces are formed through quenching of the surface, a process in which the surface is rapidly heated and rapidly cooled. Quenching produces martensite on the surface by preventing carbon atoms from diffusing through the crystal structure. The artificial organ includes a fixation portion that assists in fixing the artificial organ to the femur bone. The fixation may be only a portion of an artificial organ having a surface that is directly or indirectly connected to the femur bone, in which case the artificial organ further comprises an intermediate portion that may be located between the connection and the fixation. According to another embodiment, the fixing part is the entire artificial organ except the connection part. The connection can be quenched by rapidly cooling that particular part, but it is also conceivable that the entire artificial organ is quenched and the part that is not exposed to any wear is tempered to produce a more elastic structure in the material.

According to one embodiment, the connecting portion and the fixing portion are biocompatible metal materials, and the middle portion is a biocompatible polymer material such as a polyurethane elastomer material, a polyamide elastomer material, a polyester elastomer material, and a silicone material.

According to one embodiment, the hip artificial organ is a titanium or titanium alloy artificial organ that includes a ceramic layer, such as titanium carbide, to produce a more wear resistant surface. Titanium or titanium alloy artificial organs may be tempered to produce more elastic structures in the material.

The medical device according to any one of the embodiments may include one or more materials selected from the group consisting of polytetrafluoroethylene (PTFE), perfluoroalkoxy (PFA) and ethylene fluoride propylene (FEP). Can be. It is also conceivable that the material comprises cobalt-chromium-molybdenum or metal alloys such as titanium or stainless steel, or polyethylene such as crosslinked polyethylene or gas sterile polyethylene. The use of ceramic materials, such as zirconium or zirconium dioxide ceramics or alumina ceramics, on the contact surface or the entire medical device is also conceivable. The portion of the medical device that contacts the human bone to secure the medical device to the human bone is porous that can promote internal growth-in of the human bone within the medical device to secure the medical device. It may include a poorhouse structure, which may be a micro or nano structure. The porous structure is achieved by applying a combination comprising a hydroxy-apatite (HA) coating, or a rough open-pored titanium coating, which can be generated by air plasma spraying, an open-pore titanium coating. It can be, and the upper layer of HA can be considered. The contact portion may be a self-lubricating material such as waxy polymers such as PTFE, PFA, FEP and UHMWPE, or a powder metallurgical material that can be injected with a lubricant which is preferably a biocompatible lubricant such as hyaluronic acid derivate. Can be done. It is also conceivable here that the material of the contacting part or surface of the medical device can be lubricated continuously or intermittently. According to some embodiments, the portion of the medical device may comprise a metal material and / or a combination of carbon fiber and / or boron, a combination of metal and plastic material, a combination of metal and carbon base material, a combination of carbon and plastic base material, Combinations of flexible and rigid materials, elastic and less elastic materials, and Corian or acrylic polymers can be included.

In the following, a detailed description of the embodiment will be given. In the drawings, like numerals refer to the same or corresponding members throughout the several views. It is to be understood that these drawings are for illustrative purposes only and are not intended to limit the scope in any way. Thus, directions such as "up" or "down" only refer to the directions shown in the figures. Also, any size shown in the figures is for illustrative purposes.

1 is a side view of a conventional hip surgery in which an incision 112 is made in a tight 113 to allow the surgeon to reach the femoral bone 7 where the head femur 5 is located. to be. In conventional hip surgery, the hip joint is accessed through the hip capsule, which forces the surgeon to penetrate the tissue of the capsule.

FIG. 2 is a front view of the body of a patient in which a surgical method of providing a hip artificial organ from the opposite side to the osteophyte is performed. The method is performed, starting from the incision 1 in the abdominal wall of the patient, according to the first embodiment. The incision 1 enters the abdomen through the patient's rectus abdominis and peritoneum. In a second embodiment, the incision 2 passes through the abdominal muscles and leads to the pelvic area below the peritoneum. According to the third embodiment, the incision 3 is performed directly between the iliac bone and the surrounding tissue, which allows the pelvic bone to be dissected while penetrating the fascia and muscle tissue very small. . According to the fourth embodiment, the incision 4 is made in an inguinal channel. In all four embodiments, the tissue surrounding the pelvic bone 9 is removed or penetrated in the region opposite to the tibia, allowing the surgeon to reach the pelvic bone.

3 is a front view of the body of a patient in which a laparoscopic method of providing a hip prosthesis from the opposite side to the tibiosphere is performed. The method is performed beginning with making a small incision 14 in the abdominal wall of the patient, according to the first embodiment. The small incision allows the surgeon to insert laparoscopic trocars into the patient's abdomen. According to the first embodiment, the incision 14 enters the abdomen through the abdominal wall and peritoneum of the patient. According to the second embodiment, the small incision 15 is led through the abdominal wall, preferably the abdominal muscles, into the pelvic area below the peritoneum. According to the third embodiment, a small incision 16 is performed directly between the iliac bone and the surrounding tissue, which allows the pelvic bone to be dissected while penetrating the fascia and muscle tissue very small. According to the fourth embodiment, the incision 4 is made in the inguinal duct. In all four embodiments, the tissue surrounding the pelvic bone 9 is removed or penetrated in the region opposite to the osteoblast 8, allowing the surgeon to reach the pelvic bone.

4 is a front view of the body of the patient showing the laparoscopic method of operating the hip joint from the opposite side with respect to the osteoblast 8. The hip joint includes an osteoblast 8 and a head femur 5. Small incisions 14 in the patient's abdominal wall allow for insertion of laparoscopic trocars 33a, 33b, 33c into the patient's body. Thereafter, one or more cameras 34, surgical instruments capable of forming holes in the pelvic bone 35, or instruments 36 for introducing, positioning, connecting, attaching, forming or filling artificial organs or parts of artificial organs. ) May be inserted into the body through the laparoscopic trocar 33a, 33b, 33c.

5 is a lateral detail view of the patient's body with the hip joint shown in cross section. The hip joint comprises a head femur 5 located just above the neck femur 6, which is the upper part of the femur bone 7. The head femur is connected with the coronary ball, which is the bowl-shaped portion of the pelvic bone 9. Laparoscopic trocars 33a, 33b, 33c introduce, position, connect, or attach one or more cameras 34, surgical instruments capable of forming holes in the pelvic bone 35, or artificial organs or portions of artificial organs. It is used in conjunction with the mechanism 36 for forming or filling.

6 illustrates a hip artificial organ according to one embodiment, which may be secured to the femur bone by a fixed section (A). Hip prosthesis may have sections schematically represented by A, B, C, and D, which sections may have different properties. According to one embodiment, section A is less elastic than section B, section B is less elastic than section C, and section C is less elastic than section D. This allows the hip prosthesis to absorb the shock generated by the movement and load of the patient while at the same time allowing the first section A to be firmly anchored to the femur bone. According to another embodiment, section A is less elastic than section B, and section B is less elastic than section C, but more elastic than section D. This allows the connecting section (D) to withstand the abrasion caused by contact with the tibia (8) or the artificial replacement of the tibia, while the first section (A) can be firmly fixed to the femur bone and It allows the artificial organ to absorb shocks. However, in any of the embodiments, the artificial head femoral surface 45 also includes a surface material that may be a less elastic metal material, ceramic material, carbon material, or polymer material that can withstand wear.

FIG. 7 shows a hip artificial organ, according to one embodiment, in which the hip artificial organ may be secured to the neck femur by a fixed section A. FIG. Hip prosthesis comprises three sections, schematically labeled A, B, and C. FIG. According to one embodiment, section A is less elastic than section B, and section B is less elastic than section C. This allows the hip prosthesis to absorb the impact caused by the movement and load of the patient through the more elastic section while at the same time allowing the first section A to be firmly fixed to the neck femur. According to one embodiment, section A is less elastic than section B, and section B is larger than section C. FIG. This allows the connecting section (C) to withstand the abrasion caused by contact with the arthroplasty (8) or the artificial replacement of the arthroscopy, while the first section (A) can be firmly fixed to the neck femur and the hip joint It allows the engine to absorb shocks. However, in any of the embodiments, the artificial head femoral surface 45 also includes a surface material that may be a less elastic metal material, ceramic material, carbon material, or polymer material that can withstand wear.

FIG. 8 illustrates a hip artificial organ in one embodiment, in which the hip artificial organ includes several sections, represented schematically by I-XI. According to this embodiment, the hip joint organ consists of a metallic material that is cured so that different sections have different properties. The curing process can be carried out in such a way that there are individual sections with different properties, but also the propagation of other properties into the hip prosthesis continuously, i.e. the properties that constantly change through the hip prosthesis without individual boundaries. I can think of this. However, hip artificial organs include sections that are adopted for various surgical purposes. The fixation section (A) preferably comprises a less elastic section (I-XI), since the ability to firmly fix the hip prosthesis to the femur bone is aided by a hip prosthesis that does not change dramatically in shape. . Sections B and C are preferably more elastic sections (I-XI), since this part of the hip prosthesis can change its shape without having any dramatic effect on the mechanical function of the hip prosthesis. It includes. The connecting section D comprising the artificial head femoral surface 45 is preferably separated from the rest of the hip joint prosthesis or from a section of a metallic material that is less resilient and more wear resistant, It includes a surface material that can withstand the wear caused by the connection of the. According to another embodiment, the material is a polymeric material that is cured or stretched to produce various properties in various sections of the hip artificial organ. According to another embodiment, the hip joint organ is made of a ceramic or powder base material, in which case the hip joint organ has various properties in various sections extending along the longitudinal axis (L) of the hip joint organ. It can be cured or sintered to produce.

FIG. 9 illustrates a hip artificial organ in one embodiment, in which the hip artificial organ includes several sections, schematically represented by I-VII. FIG. According to this embodiment, the hip joint organ consists of a metallic material that is cured so that different sections have different properties. The curing process can be carried out in such a way that there are individual sections with different properties, but also the propagation of other properties into the hip prosthesis continuously, i.e. the properties that constantly change through the hip prosthesis without individual boundaries. I can think of this. However, hip artificial organs include sections that are adopted for various surgical purposes. The fixed section (A) is preferably a less elastic section (I-VII), since the ability to firmly fix the hip artificial organ to the neck femur (6) is assisted by a hip artificial organ that does not change dramatically in shape. It includes. Section (B) preferably comprises a more elastic section (I-VII), since this part of the hip prosthesis can change its shape without having any dramatic effect on the mechanical function of the hip prosthesis. do. The connecting section (C) comprising the artificial head femoral surface 45 is preferably separated from the rest of the hip joint prosthesis, or a section of a metallic material that is less resilient and more wear resistant, It includes a surface material that can withstand the wear caused by the connection of the. According to another embodiment, the material is a polymeric material that is cured or stretched to produce various properties in various sections of the hip artificial organ. According to another embodiment, the hip joint organ is made of a ceramic or powder base material, in which case the hip joint organ has various properties in various sections extending along the longitudinal axis (L) of the hip joint organ. It can be cured or sintered to produce.

FIG. 10 shows the hip artificial organ when fixed to the femur bone 7. According to this embodiment, the hip artificial organ can be secured to the femur bone 7 and the neck femur 6. According to this embodiment, the fixed section A of the hip prosthesis comprises most of the hip prosthesis, and the section B, which may be more resilient to absorb shock and vibration caused by the movement of the patient, is shown in the figure. As shown is quite short.

FIG. 11 is a cross-sectional view of the hip joint in one such embodiment where a hip prosthesis that may be secured to the neck femur may be positioned within the hip joint through a hole 18 in the pelvic bone 9, according to one embodiment. According to this embodiment, the hip prosthesis is from the outside of the neck femur 6 and from the arthroscopy side of the neck femur 6 via connection with the surface of the section 614 of the neck femur 6. And a support member 612 for supporting it.

12 illustrates a hip artificial organ according to one embodiment, in which the hip artificial organ includes a less elastic core structure 615 and a more elastic surface structure 616. The hip artificial organ may be made of a metallic material that can be cured from the outside in various stages so that the core section 615 and the surface structure have different properties. In addition, a relatively large portion of the less elastic core material 615, for example, a fixation section A that can secure the hip prosthesis to the femur bone 7, assists in securing the hip prosthesis within the femur bone. To include, it is possible to vary the thickness of the surface section along the extension of the hip artificial organ. In the same way, sections B and C may preferably be more elastic to absorb shocks and vibrations generated by the movement of the patient. The hip prosthesis can be separated into more elastic surface sections 616 and less elastic core sections by individually defined sections, but this separation is also made in a continuous manner, i.e., the core section 615 and the surface It is also conceivable that there is no individual boundary between the sections 616.

FIG. 13 illustrates a hip artificial organ according to one embodiment, in which the hip artificial organ includes a less elastic core structure 615 and a more elastic surface structure 616. The hip artificial organ may be made of a metallic material that can be cured from the outside in various stages so that the core section 615 and the surface structure have different properties. In addition, a relatively large portion of the less elastic core material 615, for example, a fixation section A that can secure the hip prosthesis to the neck femur 6, helps to secure the hip prosthesis in the femur bone. To include, it is possible to vary the thickness of the surface section along the extension of the hip artificial organ. In the same way, sections B and C may preferably be more elastic to absorb shocks and vibrations generated by the movement of the patient. The hip prosthesis can be separated into more elastic surface sections 616 and less elastic core sections by individually defined sections, but this separation is also made in a continuous manner, i.e., the core section 615 and the surface It is also conceivable that there is no individual boundary between the sections 616.

FIG. 14 shows an embodiment of a hip artificial organ, in which the hip joint is a fixed section A ', a connecting section C' extending around the circumference of the artificial head femoral portion 45 of the hip artificial organ. ), And an intermediate section B 'positioned between the fixing section A' and the connecting section C '. The fixation section may be secured to the femur bone inside the femur bone. In order to connect and move together with the femur bone, in order to reduce the risk of fracture of the femur bone or loosening of the artificial organ, a fixed section A 'is used to fix the femur bone and / or hip artificial organ to the femur bone. It may be made of a material having elasticity similar to bone cement. According to one embodiment, the connecting section C 'comprises a surface material which is less elastic than the core material of the connecting section C' to better withstand the wear to the tibia or artificial replacement of the tibia. In general, it is conceivable that the fastening section A ', the connecting section C' and the intermediate section B 'may comprise a material or part of a material having a different modulus of elasticity. The hip prosthesis also changes along the extension of one section, and / or is perpendicular to the extension, for example, as the core of the hip prosthesis has one elasticity and the surface of the hip prosthesis has one elasticity. It is also conceivable to include other materials in one section that change to.

FIG. 15 illustrates a hip artificial organ according to an embodiment, and may absorb the force in the hip joint by elastically deforming when the hip artificial organ is exposed to force. According to the embodiment shown in FIG. 15, the fixed section A ″ of the artificial organ comprises a material or part of material that can be elastically deformed when exposed to a force, and the intermediate section B of the hip artificial organ. Includes a material or portion of material that is more elastically deformed than the material of the fixed section A ".

The middle section (B ") of the hip prosthesis can absorb the force through the middle section, which is bent into a curve with curvature κ = 1 / R, where R is an osculating circle within the point P on the curve. According to one embodiment, the hip prosthesis is such that the middle section bends to a curvature value κ> 2 and the femur bone is intact while the fixation section A ″ is still fixedly attached to the femur bone. , Manage. According to another embodiment, the hip prosthesis can be managed such that the middle section bends to a curvature value κ> 4 and the femur bone is intact while the fixed section A ″ is still fixedly attached to the femur bone. According to another embodiment, the hip prosthesis may be managed such that the middle section bends to a curvature value κ> 8 and the femur bone is intact while the fixed section A ″ is still fixedly attached to the femur bone. Can be. All of these embodiments are made possible through an intermediate section B "comprising a material of sufficient elasticity to absorb the force without damaging the connection between the femur bone or the femur bone and the hip artificial organ.

The hip prosthesis of Figure 15 may also absorb forces in the hip joint through an intermediate section B "which may be elastically twisted. The ability of the material to absorb twists through twisting When applied, it can be defined as the ability of the material to twist at a certain angle, i.e., the angle of twisting = φ. According to one embodiment, the hip artificial organ has a fixed section (A ") still fixed to the femur bone. During attachment, the middle section B ″ can be managed to be twisted to an angle φ> 0.005π radians of twisting and the femur bone to be intact. According to another embodiment, the hip prosthesis is a fixed section While (A ") is still fixedly attached to the femur bone, the middle section (B") is twisted to an angle φ> 0.01π radians of twisting, and the femur bone can be managed to be in perfect condition, another practice As an example, The hip prosthesis is managed so that the middle section (B ") is twisted to an angle of twist φ> 0.02π radians while the fixed section (A") is still fixedly attached to the femur bone, and the femur bone is intact. The angle of twisting is shown in Fig. 15 A. All of the above embodiments provide a material of sufficient elasticity to absorb the force without damaging the connection between the femur bone or the femur bone and the hip joint organ. This is made possible through the intermediate section B ″.

The hip prosthesis according to any of the embodiments may be elastically bent, elastically twisted, or elastically bent and twisted. In addition, the hip joint organ according to any one of the embodiments is elastically twisted in the same manner as the femur bone and / or the same as the bone cement used to secure the femur bone and / or hip joint organ to the femur bone It is conceivable that it can be flexed elastically in a manner.

In order to enhance the growth of bone tissue to fix the artificial organ, the fixation section according to any one of the embodiments can be made of a porous or partially porous material. Porous materials allow bone tissue to extend into artificial organs and generate stable fixation.

It should be noted that any embodiment or portion of an embodiment and any method or portion of a method may be combined in any manner. All examples in this specification are to be understood as part of the general description and, therefore, in the general sense are to be understood to be combined in any manner.

Claims (78)

In hip joint prothesis that can be implanted into the hip joint of a patient,
The hip prosthesis has a longitudinal axis that, when implanted, extends in the proximal-distal direction,
The hip artificial organ includes a first proximal region and a second distal region,
The first proximal region comprises a first material or portion of a material that may have a first elasticity,
The second distal region comprises a second material or portion of a material that may have a second predetermined elasticity,
The first material or portion of material may have a different elasticity than the second material or portion of material such that a difference in elasticity affects the elasticity of the hip joint organ along the longitudinal axis of the hip joint organ. ,
Hip artificial organ. The method of claim 1,
When implanted, the proximal portion of the hip artificial organ includes a first end, and the distal end of the hip artificial organ includes a second end,
The hip artificial organ is gradually increasing in elasticity from the second end to the first end or from the first end to the end,
Hip artificial organ. The method according to claim 1 or 2,
The hip artificial organ further includes a third region, a fourth region, and a fifth region,
The third region comprises a third material or portion of a material,
The fourth region comprises a fourth material or portion of material,
The fifth region comprises a fifth material or portion of a material,
The first, second, third, fourth and fifth material or portions of material are connected to each other via net attractive forces,
The hip artificial organ has the longitudinal axis from the distal to the proximal direction,
The first, second, third, fourth and fifth regions are positioned continuously along the longitudinal axis such that the difference in elasticity affects the elasticity of the hip joint organ along the longitudinal axis of the hip joint organ. Confused,
Hip artificial organ. The method of claim 3,
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is more elastic than the fourth material or portion of material,
The fourth material or portion of material is more elastic than the fifth material or portion of material,
Hip artificial organ. The method of claim 3,
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is less elastic than the fourth material or portion of material,
The fourth material or portion of material is less elastic than the fifth material or portion of material,
Hip artificial organ. The method of claim 3,
The first material or another portion of the first material is more elastic than the second material or another portion of the second material,
The second material or another portion of the second material is more elastic than the third material or another portion of the third material,
The third material or another portion of the third material is more elastic than the fourth material or another portion of the fourth material,
The fourth material or another portion of the fourth material is less elastic than the fifth material or another portion of the fifth material,
Hip artificial organ. The method according to any one of claims 3 to 6,
When the hip artificial organ is implanted in the patient,
The first region is the most recent region of the first, second, third, fourth and fifth regions,
The second region is a second most recent region of the first, second, third, fourth and fifth regions,
The third region is a third most recent region of the first, second, third, fourth and fifth regions,
The fourth region is a fourth most recent region of the first, second, third, fourth and fifth regions,
The fifth region is a fifth most recent region of the first, second, third, fourth and fifth regions.
Hip artificial organ. The method of claim 7, wherein
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is more elastic than the fourth material or portion of material,
The fourth material or portion of material is more elastic than the fifth material or portion of material,
Hip artificial organ. The method of claim 7, wherein
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is less elastic than the fourth material or portion of material,
The fourth material or portion of material is less elastic than the fifth material or portion of material,
Hip artificial organ. The method of claim 7, wherein
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is more elastic than the fourth material or portion of material,
The fourth material or portion of material is less elastic than the fifth material or portion of material,
Hip artificial organ. The method according to any one of claims 1 to 10,
The hip joint of the patient includes an acetabulum, which is the bowl shaped portion of the pelvic bone,
The hip artificial organs,
A connecting section comprising a connecting surface, and
Fixed section with fixed surface
More,
The connecting surface comprises a first surface material or portion of material having an average elasticity,
The surface can be connected with an osteoclast or an artificial replacement of the osteoclast,
The fixation surface comprises a second surface material or portion of material having an average elasticity, which may assist in securing the hip artificial organ to the femoral bone of the patient,
Hip artificial organ. The method of claim 11,
And the average elasticity of the first surface material or portion of material is less than the average elasticity of the second surface material or portion of material. The method of claim 11,
The hip prosthesis further comprises an interconnect positioned between the first surface and the second surface comprising the third material or portion of material,
The average elasticity of the third material or portion of material is greater than the average elasticity of the first and third surface material or portions of material,
Hip artificial organ. The method according to any one of claims 1 to 13,
The hip joint organ includes a metal, artificial hip joint. The method of claim 14,
The hip joint organ includes a metal alloy. The method of claim 14,
The hip joint organ comprises a steel, artificial hip joint. The method of claim 14,
The metal is a biocompatible metal. The method of claim 16,
The percentage of martensite is higher in the first surface material or portion of material than in the second surface material or portion of material. The method of claim 14,
And said metal comprises a metal selected from the group consisting of steel, steel alloys, titanium, titanium alloys and biocompatible metals. The method according to any one of claims 1 to 13,
The hip artificial organ comprises a polymeric material or a portion of a material. The method of claim 11,
The fixation section may be secured to the neck femur (collum femur). The method of claim 21,
The fixation section may be secured to the neck femur inside the neck femur. The method of claim 11,
And the anchoring section may be anchored to the femoral bone. The method of claim 23, wherein
The fixation section may be secured to the femur bone inside the femur bone. The method of claim 11,
And the connecting section comprises a ceramic material or part of a material. The method of claim 25,
And the ceramic material or portion of the material is titanium carbide. The method of claim 1,
And the first proximal region and the second distal region are substantially connected to each other via net attraction. The method of claim 27,
The hip artificial organ further includes a first end and a second end located at the longitudinal axis of the hip artificial organ,
The first end comprises the first material or a portion of a material,
The second end comprises the second material or portion of a material,
Hip artificial organ. The method of claim 28,
When the hip prosthesis is implanted in a patient, the proximal portion of the hip prosthesis includes the first end and the distal end of the hip prosthesis includes the second end. The method of claim 29,
The hip artificial organ is a hip artificial organ, wherein the elasticity is gradually increased from the second end to the first end. The method of claim 27,
The hip artificial organ further includes a third region, a fourth region, and a fifth region,
The third region comprises a third material or portion of a material,
The fourth region comprises a fourth material or portion of material,
The fifth region comprises a fifth material or portion of a material,
Wherein the first, second, third, fourth and fifth material or portions of material are connected to each other via net attraction,
Hip artificial organ. 32. The method of claim 31,
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is more elastic than the fourth material or portion of material,
The fourth material or portion of material is more elastic than the fifth material or portion of material,
Hip artificial organ. 32. The method of claim 31,
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is less elastic than the fourth material or portion of material,
The fourth material or portion of material is less elastic than the fifth material or portion of material,
Hip artificial organ. 32. The method of claim 31,
The first material or portion of material is more elastic than the second material or portion of material,
The second material or portion of material is more elastic than the third material or portion of material,
The third material or portion of material is more elastic than the fourth material or portion of material,
The fourth material or portion of material is less elastic than the fifth material or portion of material,
Hip artificial organ. The method according to any one of claims 31 to 34, wherein
When the hip artificial organ is implanted in the patient,
The first region is the most recent region of the first, second, third, fourth and fifth regions,
The second region is a second most recent region of the first, second, third, fourth and fifth regions,
The third region is a third most recent region of the first, second, third, fourth and fifth regions,
The fourth region is a fourth most recent region of the first, second, third, fourth and fifth regions,
The fifth region is a fifth most recent region of the first, second, third, fourth and fifth regions.
Hip artificial organ. The method according to any one of claims 27 to 35,
The hip joint of the patient includes an osteoblast, which is the bowl-shaped portion of the pelvic bone,
The hip artificial organs,
A connecting section comprising a connecting surface, and
Fixed section with fixed surface
More,
The connecting surface comprises a first surface material or portion of material having an average elasticity,
The surface can be connected with an osteoclast or an artificial replacement of the osteoclast,
The fixation surface comprises a second surface material or portion of material having an average elasticity, which may assist in securing the hip artificial organ to the patient's femur bone
Hip artificial organ. 37. The method of claim 36,
And the average elasticity of the first surface material or portion of material is less than the average elasticity of the second surface material or portion of material. The method according to any one of claims 27 to 37,
The hip joint organ includes a metal, artificial hip joint. The method of claim 38,
The hip joint organ includes a metal alloy. The method of claim 38,
The hip joint organ comprises a steel, artificial hip joint. The method of claim 38,
The metal is a biocompatible metal. 41. The method of claim 40,
The percentage of martensite is higher in the first surface material or portion of material than in the second surface material or portion of material. The method of claim 38,
And said metal comprises a metal selected from the group consisting of steel, steel alloys, titanium, titanium alloys and biocompatible metals. The method according to any one of claims 27 to 37,
The hip artificial organ comprises a polymeric material or a portion of a material. 37. The method of claim 36,
The fixation section may be secured to the neck femur. The method of claim 45,
The fixation section may be secured to the neck femur inside the neck femur. 37. The method of claim 36,
The fixation section may be secured to the femur bone. The method of claim 47,
The fixation section may be secured to the femur bone inside the femur bone. 37. The method of claim 36,
And the connecting section comprises a ceramic material or part of a material. The method of claim 49,
And the ceramic material or portion of the material is titanium carbide. The method of claim 1,
The hip artificial organ includes a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section,
The hip prosthesis may be elastically deformed through the intermediate section, which may bend into a curve when exposed to force.
Hip artificial organ. The method of claim 1,
The hip artificial organ includes a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section,
The hip prosthesis may be elastically deformed through the intermediate section, which may be twisted when exposed to force.
Hip artificial organ. The method of claim 1,
The hip artificial organ includes a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section,
The hip prosthesis may be elastically deformed through the intermediate section, which may be curved and twisted when exposed to force.
Hip artificial organ. 52. The method of claim 51,
And the intermediate section may be bent in a curve with κ> 2 while the anchoring section remains fixedly attached to the femur bone. 52. The method of claim 51,
And the intermediate section may be bent in a curve with κ> 4 while the fixation section remains fixedly attached to the femur bone. 52. The method of claim 51,
And the intermediate section may be bent in a curve with κ> 8 while the fixation section remains fixedly attached to the femur bone. The method of claim 52, wherein
And the intermediate section may be twisted to an angle of twisting of (φ)> 0.005 [pi] while the fixation section remains fixedly attached to the femur bone. The method of claim 52, wherein
And the intermediate section may be twisted to an angle of twist of (φ)> 0.01π while the anchoring section remains fixedly attached to the femur bone. The method of claim 52, wherein
And the intermediate section may be twisted to an angle of twisting of (φ)> 0.02π while the anchoring section remains fixedly attached to the femur bone. 54. The method of claim 53,
The intermediate section is a hip prosthesis, which can be bent in a curve with κ> 2 and twisted to an angle of twist of (φ)> 0.005π while the fixation section remains fixedly attached to the femur bone. . In the method of absorbing the force in the hip joint of a patient using the hip artificial organ according to claim 1,
The hip joint organ is elastically deformed,
The step of elastically deforming the hip artificial organs,
Elastically deforming the material of the first region of the hip artificial organ when exposed to force, and
Deforming the material of the second region of the hip joint organ less elastically than the material of the first region of the hip joint organ when exposed to force
A method of absorbing force within a hip joint of a patient using a hip artificial organ, including. 62. The method of claim 61,
The step of elastically deforming the material of the first region of the hip artificial organ when exposed to the force includes the step of more elastically deforming the material than the material of the femur bone,
The step of deforming the material of the second region of the hip artificial organ less elastically than the material of the first region of the hip artificial organ when exposed to the force, wherein the material is in combination with the material of the femur bone Comprising substantially equally elastically deforming,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 62. The method of claim 61,
The step of elastically deforming the material of the first region of the hip artificial organ when exposed to the force includes the step of more elastically deforming the material than the material of the femur bone,
The step of deforming the material of the second region of the hip artificial organ less elastically than the material of the first region of the hip artificial organ when exposed to the force, wherein the material is Comprising elastically deforming substantially the same as bone cement used to secure the femur bone to
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 62. The method of claim 61,
The hip joint organ includes a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section,
The step of elastically deforming the hip artificial organ when exposed to the force includes the step of bending the intermediate section curved when exposed to the force,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 62. The method of claim 61,
The hip artificial organ includes a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section,
Said step of elastically deforming the hip prosthesis when exposed to the force includes the step of twisting the intermediate section when exposed to force;
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 62. The method of claim 61,
The hip artificial organ includes a fixation section, a connection section, and an intermediate section located between the fixation section and the connection section,
The step of elastically deforming the hip prosthesis when exposed to the force includes the step of bending and twisting the intermediate section when exposed to force;
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 65. The method of claim 64,
The step of bending the intermediate section curved when exposed to the force,
Bending the intermediate section into a curve with κ> 2,
The fixation section remains fixedly attached to the femur bone, and
The stage in which the femur bone remains intact
Including,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 65. The method of claim 64,
The step of bending the intermediate section curved when exposed to the force,
Bending the intermediate section into a curve with κ> 4,
The fixation section remains fixedly attached to the femur bone, and
The stage in which the femur bone remains intact
Including,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 65. The method of claim 64,
The step of bending the intermediate section curved when exposed to the force,
Bending the intermediate section into a curve with κ> 8,
The fixation section remains fixedly attached to the femur bone, and
The stage in which the femur bone remains intact
Including,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 66. The method of claim 65,
Wherein said intermediate section is twisted when exposed to said force,
The intermediate section is twisted to an angle of twist of (φ)> 0.005π radians,
The fixation section remains fixedly attached to the femur bone, and
The stage in which the femur bone remains intact
Including,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 66. The method of claim 65,
Wherein said intermediate section is twisted when exposed to said force,
The intermediate section is twisted to an angle of twisting of (φ)> 0.01π radians,
The fixation section remains fixedly attached to the femur bone, and
The stage in which the femur bone remains intact
Including,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 66. The method of claim 65,
Wherein said intermediate section is twisted when exposed to said force,
The intermediate section is twisted to an angle of twisting of (φ)> 0.02π radians,
The fixation section remains fixedly attached to the femur bone, and
The stage in which the femur bone remains intact
Including,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 66. The method of claim 65,
Wherein said intermediate section is bent and twisted when exposed to said force,
Bending the intermediate section into a curve with κ> 2,
The intermediate section is twisted to an angle of twist of (φ)> 0.005π radians,
The fixation section remains fixedly attached to the femur bone, and
The stage in which the femur bone remains intact
Including,
A method of absorbing force in the hip joint of a patient using a hip artificial organ. 61. The method of any of claims 1-60,
When implanted, the proximal portion of the hip artificial organ includes the first end and the distal end of the hip artificial organ includes the second end,
The hip prosthesis further has a rigid, less elastic layer on the surface of the first end at the top,
Hip artificial organ. The method of claim 74, wherein
Below / end of the upper rigid less elastic layer at the surface of the first end, the artificial organ is substantially elastic, and further at the distal end, gradually less elastic in the distal direction. 77. The method of claim 75,
The portion of the artificial organ that becomes progressively less elastic toward the distal end in the distal direction is ending at the distal end where the artificial organ contacts the femur bone when implanted. The method of claim 74, wherein
The portion of the artificial organ located within the femur bone is progressively more elastic toward the distal end in the distal direction when implanted. The method of claim 74, wherein
The portion of the artificial organ located within the femur bone has an elasticity close to that of the bone,
Hip artificial organ.

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