KR20170120210A - Hip joint device and method - Google Patents

Abstract

A hip joint prosthesis according to the present invention is provided which can be implanted into a patient's hip. Wherein the hip joint prosthesis comprises a first region and a second region, the first region comprising a first material that may be resilient, the second region comprising a second material that may be resilient, The material may be more elastic than the second material.

Description

[0001] HIP JOINT DEVICE AND METHOD [0002]

The present invention relates generally to hip joint prosthesis.

Hip osteoarthritis is a syndrome in which low grade inflammation causes pain in the hip joint caused by abnormal wear of the cartilage acting as a cushion in the hip. This abnormal wear of the cartilage also reduces joint lubrication, referred to as synovial fluid. It is estimated that osteoarthritis of the hip affects more or less severe forms of 80% of people over 65 years of age.

Current treatments for osteoarthritis of the hip include the localization of NSAID drugs, hyaluronic acid or glucocorticoids to assist in the lubrication of the hip joints and to replace the hip joints with artificial organs through hip surgery Injection.

Replacement of the hip joint is one of the most common operations performed on numerous patients worldwide every year to date. The most common method involves placing a metal artificial organ in the femur and placing a plastic bowl in the acetabulum. This operation is performed through lateral incision in the hip and upper thigh and through the fascia lata and lateral muscles of the femur. To access the joints, it is necessary to penetrate the supporting hip capsule attached to the femur and ilium. Next, the femur is cut from the neck with a bone saw, and the artificial organ is placed in the femur with or without bone cement. The acetabular reamer is slightly expanded using an acetabular reamer, and the plastic bowl is positioned using screws or bone cement.

Metallic artificial organs located within the femur are typically harder than human bones and, in many cases, injure the femur bone at the point where the artificial organ is fixed to the femur bone. The difference in elasticity between the femur bone and the hip artifact also affects the fixation of the artificial organ. Loosening the prosthesis is the most common reason for rehabilitation of the hip, and the difference in elasticity between the prosthesis and the femur bone promotes the loosening of the prosthesis by generating tension on the anchoring point.

A further problem with stiffening, i.e., with artificial organs lacking elasticity, is that the artificial organs completely hold the load bearing from the natural bones, causing the bones to contract and reducing the formation of new bone tissue. Ultimately, this process propagates the loosening of the artificial organs. Deformation at the contact surface also comes from a wider range of deformations in accident situations, such as when an accident occurs, such as a shock that is propagated through the body when walking, or when a person falls. Rigid artificial organs do not act in a shock-absorbing manner, and the total impact is transmitted to the contact surface where the artificial organ is fixed to the femur bone.

Accordingly, it is an object of the present invention to provide a hip joint prosthesis having resilient properties similar to bone at the point where the prosthesis is fixed to the bone, and / or to provide a hip joint prosthesis that absorbs impact in a manner similar or improved to the natural hip joint. .

A hip artificial organ was provided that could be implanted into the patient's hip. The hip prosthesis includes a first region and a second region, wherein the first region comprises a first material or portion of a material that may be resilient, and the second region comprises a second material or material The portion of the first material or material may be more resilient than the portion of the second material or material.

According to one embodiment, the hip prosthesis further comprises a first end and a second end located along the longitudinal axis of the hip prosthesis. 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 prosthesis is gradually increasing in resiliency from the first end to the end.

According to another embodiment, the hip prosthesis further comprises a third region, a fourth region, and a fifth region, wherein the third region comprises a portion of a third material or material, 4 material or a portion of the material, wherein the fifth region comprises a portion of the fifth material or material, and wherein the first, second, third, fourth and fifth material or portion of the material comprises a net attraction force net attractive forces.

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

According to one embodiment, the portion of the first material or material may be more resilient than the portion of the second material or material, and the portion of the second material or material may be more elastic than the portion of the third material or material The portion of the third material or material may be less elastic than the portion of the fourth material or material and the portion of the fourth material or material may be more resilient than the portion of the fifth material or material Can be smaller.

According to one embodiment, the portion of the first material or material may be more resilient than the portion of the second material or material, and the portion of the second material or material may be more elastic than the portion of the third material or material The portion of the third material or material may be more resilient than the portion of the fourth material or material and the portion of the fourth material or material may be more resilient than the portion of the fifth material or material Can be smaller.

According to one embodiment, when the hip prosthesis is implanted in a patient, the first region is a nearest upper region of the first, second, third, fourth, and fifth regions, Second, third, fourth, and fifth regions of the first, second, third, fourth, and fifth regions, wherein the third region is a third nearest top region of the first, Second, third, fourth, and fifth regions; and the fourth region is a fourth nearest region of the first, second, third, fourth, and fifth regions, 5 < / RTI >

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

According to one embodiment, the portion of the first material or material may be more resilient than the portion of the second material or material, and the portion of the second material or material may be more elastic than the portion of the third material or material The portion of the third material or material may be less elastic than the portion of the fourth material or material and the portion of the fourth material or material may be more resilient than the portion of the fifth material or material Can be smaller.

According to one embodiment, the portion of the first material or material may be more resilient than the portion of the second material or material, and the portion of the second material or material may be more elastic than the portion of the third material or material The portion of the third material or material may be more resilient than the portion of the fourth material or material and the portion of the fourth material or material may be more resilient than the portion of the fifth material or material Can be smaller.

According to one embodiment, the first, second, third, fourth and fifth materials or parts of the material all comprise different combinations of different materials or different parts of the same material, All other parts have different elasticity.

The hip joint includes a rib-shaped portion that is a bowl-shaped portion of the pelvic bone. The hip prosthesis may further include a connection section including a connection surface. The connecting surface comprises a portion of a first surface material or material having an average elasticity and the surface can be connected to an artificial replacement of the ankle or ankle. The hip prosthesis further includes a fixation section including a fixation surface. The anchoring surface includes a portion of a second surface material or material having an average resilience that can assist in securing the hip joint prosthesis to a patient's femur bone.

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 prosthesis may comprise a metal, the metal may be a metal alloy, and the alloy may comprise steel and / or a biocompatible metal.

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

It is also conceivable that the hip artificial organ includes a polymer material.

In embodiments where the hip artificial organ includes the first and second materials or portions of material, it is contemplated that the first and second materials or portions of the material comprise a metal. The metallic material or part of the material may be a metal selected from the group consisting of steel, steel alloys, titanium, titanium alloys and biocompatible metals. In an embodiment wherein the hip artificial organ comprises a portion of a first, second, third, fourth and fifth material or material, the portion of the first, second, third, fourth and fifth material or material Is a metallic material, and the metallic material may be a metal selected from the group consisting of steel, an alloy including steel, titanium, a titanium alloy, and a bio-compatible metal.

(Fixed section)

According to one embodiment, the hip artificial organ can be secured to the neck femur. In such cases, the artificial organ can be fixed to the neck femur within the neck femur. In another embodiment, the hip artificial organ can be secured to the femur bone, and in such case, the hip artificial organ can be secured within the femur bone.

(Connection section)

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

(Material connected through net manpower)

According to one embodiment, the hip joint prosthesis includes a first region and a second region that are connected to each other through a net attraction. Wherein the first region comprises a first material or portion of material that may be elastic and the second region comprises a portion of a second material or material that may be elastic, 2 material or a part of the material.

According to one embodiment, the hip prosthesis further comprises a first end and a second end located in the longitudinal axis of the hip prosthesis. 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 comprises the first end, and the distal end of the hip prosthesis comprises the second end. It is also contemplated that the hip artificial organ gradually increases in elasticity from the second end to the first end.

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

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

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

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

According to one embodiment, when the hip prosthesis is implanted in a patient, the first region is a nearest upper one of the first, second, third, fourth, and fifth regions, Second, third, fourth, and fifth regions of the first, second, third, fourth, and fifth regions, wherein the third region is a third nearest top region of the first, Second, third, fourth, and fifth regions; and the fourth region is a fourth nearest region of the first, second, third, fourth, and fifth regions, 5 < / RTI >

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

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

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

The hip includes the ribs, which are bowl-shaped portions of the pelvic bone. The hip prosthesis according to any one of the above embodiments may further comprise a connection section including a connection surface. The connecting surface comprises a portion of a first surface material or material having an average elasticity and the surface can be connected to an artificial replacement of the ankle or ankle. The artificial organ further comprises a securing section comprising a securing surface. The anchoring surface includes a portion of a second surface material or material having an average resilience that can assist in securing the hip joint prosthesis to a patient's femur bone.

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 prosthesis may comprise a metal such as a metal alloy, and the alloy may comprise steel and / or a biocompatible metal.

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

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

In embodiments where the hip artificial organ includes the first and second materials or portions of material, it is contemplated that the first and second materials or portions of material are metals. The metallic 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 material or part of the material may be a metallic material and the metallic material is selected from the group consisting of steel, an alloy comprising steel, titanium, And a biocompatible metal.

(Fixed section)

According to one embodiment, the hip joint prosthesis can be fixed to the neck femur, and the fixation can be done from inside the neck femur.

According to another embodiment, the hip joint prosthesis can be fixed to the femur bone, and the fixation can be done 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 include a fixed section, a connecting section, and an intermediate section located between the fixed section and the connecting section. The hip joint prosthesis according to any one of the preceding embodiments may be resiliently deformed through an intermediate section that can be bent into a curve when exposed to a force or may have an intermediate section that can be twisted when exposed to force Or the haptic artificial engine may be resiliently deformed through the intermediate section which can be curved and twisted when exposed to force.

While the fixed section remains fixedly attached to the femur bone, the middle section may be bent to a curve of < 2 >, according to one embodiment, and according to another embodiment, And according to another embodiment, can be bent into a curve with κ> 8.

While the fixed section remains fixedly attached to the femur bone, the intermediate section may be twisted to an angle of twist of (phi) > 0.005 pi according to one embodiment, and according to another embodiment can be twisted to an angle of twist of (phi) > 0.01 pi, and according to another embodiment, can be twisted to an angle of twist of (phi) > 0.02 pi. It is also conceivable that the intermediate section may be twisted to a curve with> > 2 and twisted to an angle of twisting of (phi) > 0.005 π, while the fixed section remains fixedly attached to the femur bone .

(Way)

There is further provided a method of absorbing a force in a patient's hip using a hip joint prosthesis according to any one of the above embodiments. The method includes elastically deforming the hip prosthesis, wherein the elastically deforming hip prosthesis is configured such that when exposed to a force, the material of the first region of the hip artificial organ And elastically deforming the material of the second region of the hip prosthesis when exposed to a force less elastic than the material of the first region of the hip prosthesis.

According to one embodiment, the step of elastically deforming the material of the first region of the hip prosthesis when exposed to the force comprises the step of elastically deforming the material more than the material of the femur bone Wherein the material in the second region of the hip prosthesis when exposed to the force is less elastically deformed than the material in the first region of the hip prosthesis, And elastically deforming substantially the same as that of the material of the base material.

According to another embodiment, the step of elastically deforming the material of the first region of the hip prosthesis when exposed to the force comprises the step of elastically deforming the material more than the material of the femur bone Wherein the material in the second region of the hip prosthesis when exposed to the force is less resiliently deformed than the material in the first region of the hip prosthesis, And elastically deforming substantially the same as the bone cement used to fix the hip artificial organ to the femoral bone.

According to one embodiment, the hip prosthesis includes a fixed section, a connecting section, and an intermediate section located between the stationary section and the connecting section. Wherein the step of elastically deforming the hip joint prosthesis when exposed to the force comprises the steps of: maintaining the fixation section fixedly attached to the femur bone and maintaining the femur bone in a full state; Bending the intermediate section into a curve, or twisting the intermediate section when exposed to force, or twisting the intermediate section when exposed to force.

While the fixation section remains fixedly attached to the femur bone, the intermediate section may be bent to a curve of < 2 > according to one embodiment, bent according to another embodiment to a curve of > , According to another embodiment, is bent into 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 twist of (phi) > 0.005 pi, according to one embodiment, phi] > 0.01 [pi] or twisted to an angle of twist of (phi) > 0.02 pi according to another embodiment.

It is also conceivable that while the fixed section remains fixedly attached to the femur bone, it is conceivable that the intermediate section is bent into a curve with?> 2 and twisted to an angle of twist of? It is also conceivable that while the fixed section remains fixedly attached to the femur bone, it is conceivable that the intermediate section is bent into a curve with?> 2 and twisted to an angle of twist of?

According to one embodiment, when implanted, the proximal portion of the hip prosthesis comprises the first end, the distal end of the hip prosthesis comprises the second end, And has a harder, less elastic layer on the surface of the first end.

According to one embodiment, the artificial organs are substantially resilient at the surface / distal end of the upper hard less elastic layer at the surface of the first end, and are less elastic in the distal direction at the distal end.

According to one embodiment, the portion of the prosthesis that gradually decreases in elasticity from the distal end to the distal end is terminated at the distal end where the prosthesis is in contact with the femur bone when implanted.

According to one embodiment, the portion of the prosthesis that is located within the femur bone gradually increases in elasticity toward the distal end in the distal direction when implanted.

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

It is noted that portions of any embodiment or embodiment and portions of any method or 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 the patient when the incision is made by the surgical method.
Figure 3 is a front view of the patient when the incision is made in a laparoscopic method.
Figure 4 is a front view of a patient and a tool of a laparoscopic method.
5 is a cross-sectional view of the patient when the laparoscopic method is performed.
6 is a view of a hip joint prosthesis according to one embodiment.
7 is a view of a hip joint prosthesis according to one embodiment.
Figure 8 is a detailed view of a hip joint prosthesis according to one embodiment.
9 is another detail view of a hip joint prosthesis according to one embodiment.
10 is a detailed view of a hip joint prosthesis according to an embodiment when fixed to a femur bone;
11 is a detailed view of a hip joint prosthesis according to an embodiment when it is fixed to a collum femur;
12 is a view of a hip joint prosthesis according to one embodiment.
13 is a view of a hip joint prosthesis according to one embodiment.
14 is a view of another part of a hip artificial organ and a hip artificial organ.
15 is a view of a hip joint prosthesis with curvature.
15A is a diagram schematically illustrating how torsion affects a portion of a hip joint prosthesis.

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

The elasticity should be understood as the ability of the material to deform in an elastic manner.

Elastic deformation occurs when the material is deformed under stress (for example) but returns to its original shape when the stress is removed. A more elastic material should be understood as a material with a lower elastic modulus. The elastic modulus of an object is defined as the slope of an object's stress-strain curve in the region of elastic strain. The modulus of elasticity is calculated as a stress / strain, where stress is the force that produces the strain divided by the region to which the force is applied, and strain is the rate of change that occurs in the stress.

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

The net attraction should be understood as the attraction force that causes the materials to be interconnected at the atomic or molecular level. These net attraction forces can be van der Waals forces, bipolar forces, or covalent forces. The materials that are connected through the tanning force may be the same material, the same base material by different treatments, or other materials that are secured together by some kind of bonding force.

The proximal part of the hip artificial organ should be understood as the part of the patient that is placed in place when implanted. Thus, the proximal portion is a portion including a connection portion connected to the ribs. The distal part should be understood as part of the prosthesis placed at the distal end in the patient when implanted. The distal portion includes a fixation portion that is capable of securing the artificial organ to the femur bone and / or the neck femur.

A portion of a material should be understood as a portion of a material that does not necessarily have the same properties as another portion of the same material, for example, a portion of a metallic material may be a portion of a metallic material , Which is similar for polymeric and ceramic materials.

Biocompatible materials should be understood as materials with low levels of immunoreactivity. 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 bio-compatible alloy comprising one or more biocompatible metals.

The metal alloy should be understood as a mixture of two or more elements in a solid solution whose main component is a metal. Therefore, a steel alloy is an alloy in which iron, which is an alloy of iron and carbon, is one of the components. Accordingly, the titanium alloy is an alloy in which one of the components is titanium.

Martensite is a very hard crystalline steel structure, but it is also any crystal structure formed by displacement transformation. It includes a kind of hard mineral which occurs as lath or plate type crystal grains.

According to one embodiment, the hip joint prosthesis is a steel alloy prosthesis, such as a stainless steel prosthesis, and one of the ends of the prosthesis may be connected to a rib, which is a bowl-shaped portion of a pelvic bone. The connection has a less resilient surface that can withstand better wear than the rest of the prosthesis. A less elastic surface is formed through quenching of the surface, a process in which the surface is rapidly heated and rapidly cooled. Quenching causes martensite on the surface by inhibiting the carbon atoms from diffusing through the crystal structure. The prosthesis includes a fixture that assists in securing the prosthesis to the femur bone. The anchoring portion may be only part of an artificial organ having a surface directly or indirectly connected to the femur bone, in which case the artificial organ further comprises an intermediate portion that can be located between the connecting portion and the anchoring portion. According to another embodiment, the anchoring portion is the entire artificial organ excluding the connection portion. It is also conceivable that the connection can be quenched by rapid cooling of the particular part, but the entire artificial engine is quenched and the part which is not exposed to any abrasion 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 engine is a titanium or titanium alloy artificial organ comprising a ceramic layer, such as titanium carbide, to create a surface where the connection is more wear resistant. The titanium or titanium alloy artificial engine may be tempered to generate a more elastic structure in the material.

The medical device according to any one of the embodiments comprises at least one material selected from the group consisting of polytetrafluoroethylene (PTFE), perfluoroalkoxy (PFA), and fluorinated ethylene propylene (FEP) . It is also contemplated that the material may comprise a metal alloy such as cobalt-chromium-molybdenum or titanium or stainless steel, or polyethylene such as cross-linked polyethylene or gaseous sterilized polyethylene. The use of ceramic materials, such as zirconium or zirconium dioxide ceramics or alumina ceramics, is also contemplated for the contact surface or the entire medical device. A portion of a medical device that contacts a human bone for securing the medical device to a human bone is a porous material that is capable of promoting the growth-in of human bone within the medical device for securing the medical device. And a poorhouse structure that can be micro or nanostructured. The porous structure can be achieved by applying a combination comprising a hydroxy-apatite (HA) coating, or a coarse open-pored titanium coating, open-pore titanium coating, which can be generated by air plasma spraying And HA upper layer can be conceived. The contacting portion can be a powder metallurgical material that can be injected with a self-lubricating material such as a waxy polymer such as PTFE, PFA, FEP and UHMWPE, or with a lubricant, preferably a biocompatible lubricant such as a hyaluronic acid derivative Lt; / RTI > It is also conceivable here that the material of the contact part or surface of the medical device may be lubricated continuously or intermittently. According to some embodiments, the portion of the medical device may comprise a combination of metal material and / or 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, A combination of flexible and rigid materials, elastic and less resilient materials, Corian or acrylic polymers.

In the following, a detailed description of the embodiments will be given. In the drawings, like reference numerals designate like or corresponding elements throughout the several views. It will be understood that these drawings are for explanation only and are not intended to limit the scope in any way. Accordingly, directions such as "upward" or "downward" refer only to directions shown in the drawings. In addition, any size shown in the figures is for the purpose of illustration.

1 is a side view of a conventional hip arthroplasty in which an incision 112 is made in a tight 113 so that a surgeon can reach the femur bone 7 where the bifurcated femur 5 is located. to be. In conventional hip surgery, the hip is approached through the hip capsule, which forces the surgeon to penetrate the tissue of the capsule.

Fig. 2 is a front view of a patient's body in which a surgical method of providing a hip joint prosthesis is provided from the opposite side to the ankle; The method is performed starting from the incision 1 in the abdominal wall of the patient, according to the first embodiment. The incision 1 passes through the rectus abdominis and peritoneum of the patient and enters the abdomen. In the second embodiment, the incision 2 passes through the rectus abdominis muscle and is directed to the pelvic region under the peritoneum. According to a third embodiment, the incision 3 is performed directly between the iliac and the surrounding tissue, and the incision 3 allows the pelvic bone to be dissected while penetrating the fascia and muscle tissue very little . According to a fourth embodiment, the incision 4 is made in the inguinal channel. In all four embodiments, tissue surrounding the pelvic bone 9 in the region opposite the ankle is removed or penetrated, allowing the surgeon to reach the pelvic bone.

3 is a front view of a patient's body in which a laparoscopic method of providing a hip joint prosthesis from the opposite side to the ankle is performed. The method is performed, starting with making a small incision 14 in the patient's abdominal wall, according to the first embodiment. A small incision allows the surgeon to insert the laparoscopic trocar into the abdomen of the patient. In accordance with the first embodiment, the incision 14 enters the abdomen through the abdominal wall and peritoneum of the patient. According to the second embodiment, a small incision 15 is led to the abdominal wall, preferably through the rectus abdominis muscle, and into the pelvic region beneath the peritoneum. In accordance with the third embodiment, a small incision 16 is made between the ilium and the surrounding tissue just as the incision 16 penetrates the fascia and muscle tissue very little, allowing the pelvic bone to be dissected. According to the fourth embodiment, the incision 4 is made in the suture tube. Throughout all four embodiments, the tissue surrounding the pelvic bone 9 in the region opposite to the ankle 8 is removed or penetrated, allowing the surgeon to reach the pelvic bone.

Fig. 4 is a front view of the patient's body showing the laparoscopic method of operating the hip joint from the opposite side to the ankle 8. Fig. The hip joint includes a rib (8) and a biceps femoris (5). A small incision 14 in the patient's abdominal wall allows the laparoscopic trocar 33a, 33b, 33c to be inserted into the patient's body. Thereafter, a mechanism 36 for introducing, locating, connecting, attaching, forming or filling a portion of the artificial organ or artificial organ, or a surgical instrument capable of forming a hole in the pelvic bone 35, May be inserted into the body through the laparoscopic trocar trocar 33a, 33b, 33c.

Figure 5 is a side detail view of the patient's body in which the hips are shown in cross-section. The hip joint includes a biceps femur 5 located directly above the neck femur 6, which is the upper part of the femur bone 7. [ The bony femur is connected to the bony-shaped portion of the pelvic bone (9). The laparoscopic trocar cap 33a, 33b and 33c may be used to introduce, position, connect, attach, or fix a portion of a surgical instrument or artificial organ or artificial organ which may form a hole in one or more cameras 34, pelvic bones 35 , ≪ / RTI > forming or filling.

Figure 6 shows a hip joint prosthesis according to one embodiment, wherein the hip joint prosthesis can be secured to the femur bone by a securing section (A). The hip joint artifact may have sections generally designated A, B, C, and D, and the sections may have different properties. According to one embodiment, the section A is less elastic than the section B, the section B is less elastic than the section C, and the section C is less elastic than the section D. This allows the first section (A) to be securely fixed to the femur bone while the hip joint prosthesis can absorb the impact caused by the movement and load of the patient. According to another embodiment, the section A is less elastic than the section B, and the section B is less elastic than the section C but more elastic than the section D. This is because the connecting section D can withstand the wear caused by the contact with the artificial replacement of the ankle 8 or the ankle, the first section A can be firmly fixed to the femur bone, Enables artificial organs to absorb shock. However, also in any of the embodiments, the artificial dorsal femur surface 45 includes a surface material that may be a less resilient metallic material, a ceramic material, a carbon material, or a polymeric material capable of withstanding abrasion.

7 shows a hip joint prosthesis according to an embodiment in which a hip joint prosthesis can be fixed to a neck femur by a fixed section (A). The hip artificial organ includes three sections, schematically denoted A, B, According to one embodiment, the section A is less elastic than the section B, and the section B is less elastic than the section C. This allows the hip joint 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 securely 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. This is because the connecting section C can withstand the wear caused by the contact with the artificial replacement of the ankle 8 or the ankle, and the first section A can be firmly fixed to the neck femur, Allows the engine to absorb the shock. However, also in any of the embodiments, the artificial dorsal femur surface 45 includes a surface material that may be a less resilient metallic material, a ceramic material, a carbon material, or a polymeric material capable of withstanding abrasion.

Figure 8 shows a hip prosthesis in one embodiment, wherein the hip joint prosthesis includes several sections, schematically represented by I-XI. According to this embodiment, the hip joint prosthesis is made of a metallic material that is cured such that the other sections have different properties. The curing process can be carried out in such a way that there is a separate section with different properties, but it is also possible that other properties are continuously propagated to the hip artificial organ, that is, the property of continuously changing through the hip artificial organ without individual boundaries It is also possible to think that there is. However, hip arthroplasty includes sections that are employed for various surgical purposes. The securing section A preferably includes a less elastic section (I-XI), because the ability to securely fix the hip prosthesis to the femur bone is assisted by a hip articulation whose shape does not change dramatically . Sections B and C preferably have more resilient sections I-XI, since this portion of the hip artificial organ can change its shape without having any dramatic effect on the mechanical function of the hip artificial organ. . The connecting section D comprising the artificial apex femoral surface 45 is preferably separated from the rest of the section of metal material which is less elastic and more resistant to abrasion or from the rest of the hip artificial organ, Which is able to withstand the wear generated by the connection of the surface. 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 joint prosthesis. According to another embodiment, the hip artificial organ consists of a ceramic or powder base material, and in such a case, the hip artificial organ has various properties in various sections extending along the longitudinal axis L of the hip artificial organ To be cured or sintered.

Figure 9 shows a hip joint prosthesis in one embodiment, wherein the hip joint prosthesis includes several sections, schematically represented by I-VII. According to this embodiment, the hip joint prosthesis is made of a metallic material that is cured such that the other sections have different properties. The curing process can be carried out in such a way that there is a separate section with different properties, but it is also possible that other properties are continuously propagated to the hip artificial organ, that is, the property of continuously changing through the hip artificial organ without individual boundaries It is also possible to think that there is. However, hip arthroplasty includes sections that are employed for various surgical purposes. The securing section A preferably has a less elastic section I-VII because the ability to securely fix the hip prosthesis to the neck femur 6 is assisted by a hip articulation whose shape does not change dramatically. . Section (B) preferably includes more resilient sections (I-VII), since this portion of the hip artificial organ can change its shape without having any dramatic effect on the mechanical function of the hip artificial organ do. The connecting section C comprising the artificial apex femoral surface 45 is preferably separated from the rest of the section of metal material which is less elastic and more resistant to abrasion or from the rest of the hip artificial organ, Which is able to withstand the wear generated by the connection of the surface. 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 joint prosthesis. According to another embodiment, the hip artificial organ consists of a ceramic or powder base material, and in such a case, the hip artificial organ has various properties in various sections extending along the longitudinal axis L of the hip artificial organ To be cured or sintered.

Fig. 10 shows the hip joint prosthesis when fixed to the femur bone 7. Fig. According to this embodiment, the hip artificial organ can be fixed to the femur bone 7 and the neck femur 6. According to this embodiment, the securing section A of the hip joint prosthesis includes the majority of the hip artificial organ, and section B, which may be more resilient to absorb shock and vibration caused by movement of the patient, As shown in FIG.

Figure 11 is a cross-sectional view of the hip joint in this embodiment, wherein the hip joint prosthesis, which can be secured to the neck femur according to one embodiment, can be positioned within the hip joint through the hole 18 in the pelvic bone 9. [ According to this embodiment, the hip joint prosthesis is inserted from the outside of the neck femur 6 and from the side of the neck of the neck femur 6 through the connection with the surface of the section 614 of the neck femur 6, And a supporting member 612 for supporting the supporting member 612.

Figure 12 illustrates a hip prosthesis according to one embodiment, wherein the hip joint prosthesis includes a less elastic core structure 615 and a more resilient surface structure 616. The hip artificial organ can be made of a metal material that can be hardened from the outside at various stages so that the surface structure with the core section 615 has different properties. It is also contemplated that the fastening section A, for example, which can secure the hip joint prosthesis to the femur bone 7, may include a relatively large portion of the less elastic core material 615 that assists in securing the hip joint prosthesis within the femur bone The thickness of the surface section along the extension of the hip prosthesis may be varied. In the same way, sections B and C may preferably be more resilient to absorb shock and vibration caused by movement of the patient. Although the hip artificial organ can be separated into the more elastic surface section 616 and the less elastic core section by individually defined sections, this separation also occurs in a continuous manner, i.e., the core section 615 and the surface It is also conceivable that there is no separate boundary between the sections 616.

Figure 13 illustrates a hip prosthesis according to one embodiment, wherein the hip joint prosthesis includes a less elastic core structure 615 and a more resilient surface structure 616. [ The hip artificial organ can be made of a metal material that can be hardened from the outside at various stages so that the surface structure with the core section 615 has different properties. It is also contemplated that the fastening section A capable of securing the hip articulation to the neck of the femur 6 may include a relatively large portion of the less elastic core material 615 that assists in securing the hip artificial organ in the femur bone, The thickness of the surface section along the extension of the hip prosthesis may be varied. In the same way, sections B and C may preferably be more resilient to absorb shock and vibration caused by movement of the patient. Although the hip artificial organ can be separated into the more elastic surface section 616 and the less elastic core section by individually defined sections, this separation also occurs in a continuous manner, i.e., the core section 615 and the surface It is also conceivable that there is no separate boundary between the sections 616.

14 shows an embodiment of a hip prosthesis, wherein the hip prosthesis comprises a fixed section A ', a connecting section C' extending around the circumference of the artificial apex femoral portion 45 of the hip prosthesis, And an intermediate section B 'positioned between the fixed section A' and the connecting section C '. The fixation section may be secured to the femoral bone within the femur bone. The fixation section A 'is used to fix the femur bone and / or the hip artificial organ to the femur bone to reduce the risk of fracture of the femur bone or loosening of the artificial organ, And may be made of a material having resilience similar to bone cement. According to one embodiment, the connecting section C 'comprises a less elastic surface material than the core material of the connecting section (C') to better withstand wear on artificial replacements of the ankle or ankle. It is generally conceivable that the fixed section A ', the connecting section C' and the middle section B 'may comprise a part of a material or material having a different modulus of elasticity. It is also contemplated that the hip artificial organ varies along an extension of one section, and / or that the core of the hip prosthesis has one elasticity and that the surface of the hip prosthesis has one elasticity, May be included in one section.

Figure 15 illustrates a hip joint prosthesis according to one embodiment, which can absorb force within the hip joint by elastically deforming when the hip joint prosthesis is exposed to forces. According to the embodiment shown in Fig. 15, the anchoring section A "of the prosthesis includes a portion of a material or material that can be elastically deformed when exposed to a force, Quot; includes a portion of a material or material that is more resiliently deformed than the material of the fixed section A ".

The intermediate section (B ") of the hip joint prosthesis may absorb the force through an intermediate section bent into a curve with a curvature value κ = 1 / R, where R is the osculating circle According to one embodiment, the hip artificial engine is configured so that the middle section is bent at a curvature value?> 2 while the fixed section A "is still fixedly attached to the femur bone, and the femur bone is in a perfect state . According to another embodiment, the hip joint prosthesis can be maneuvered such that the intermediate section is bent to a curvature value?> 4 while the fixed section A "is still fixedly attached to the femur bone, and the femur bone is in a complete state According to another embodiment, the hip joint prosthesis can be controlled so that the middle section is bent at a curvature value?> 8 while the fixed section A "is still fixedly attached to the femur bone, . All of the above embodiments are made possible through an intermediate section B "comprising a resilient material sufficient to absorb the force without damaging the connection between the femur bone or femur bone and the hip artificial organ.

The hip joint prosthesis of Figure 15 can also absorb the force within the hip joint through an intermediate section B ", which can be resiliently twisted. The ability of the material to absorb twisting through twisting is such that the force The hip joint prosthesis can be defined as the ability of the material to twist with an angle of twisting = [phi], when applied, to the femoral bone. During attachment, the intermediate section B "is twisted with an angle of twisting of > 0.005 pi radian, and the femur bone is in perfect condition. According to another embodiment, The intermediate section B " can be twisted with an angle of twist of phi > 0.01 pi radian while the femur bone is still attached to the femur bone, while the other section (B " According to the example, The hip joint artifact is twisted in an angle < phi > 0.02 radian of the twisting angle while the fixed section A "is still fixedly attached to the femur bone, The angle of the twisting is shown in Figure 15 A. All of the above embodiments are based on the use of a resilient material sufficient to absorb the force without damaging the connection between the femur bone or femur bone and the hip artificial organ (B ").

The hip joint prosthesis according to any of the embodiments may be resiliently bent, resiliently twisted, resiliently bent and twisted. Also, the hip joint prosthesis according to any 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 the hip artificial organ to the femur bone It is possible to think that it can be elastically bent.

To enhance the growth of bone tissue that fixes the prosthesis, the securing section according to any of the embodiments may be made of a porous or partially porous material. The porous material allows bone tissue to extend into the prosthesis and create stable fixation.

It should be noted that portions of any embodiment or embodiment and portions of any method or method may be combined in any manner. It is to be understood that all examples herein are to be understood as being part of the general description and thus can be combined in any way in general terms.

Claims (14)

In hip joint prothesis, which can be implanted in a patient ' s hip joint,
The hip prosthesis has a longitudinal axis extending in the proximal-distal direction when implanted,
Wherein the hip prosthesis comprises a proximal first region and a distal second region,
Wherein the proximal first region comprises a first metallic material having a first elasticity,
The second region being a circle comprising a second metal material having a second elasticity,
Wherein the first and second metallic materials are connected via net attractive forces,
Wherein the first and second metallic materials have different elasticities such that the difference in elasticity affects the resiliency of the hip articulation along the longitudinal axis of the hip articulator.
Hip artificial organ. The method according to claim 1,
Wherein the proximal portion of the hip prosthesis comprises the first end when the implant is implanted, the distal end of the hip prosthesis comprises a second end,
Wherein the hip prosthesis is progressively larger in elasticity from the second end to the first end or from the first end to the second end. 3. The method according to claim 1 or 2,
Wherein the hip prosthesis further comprises a third region, a fourth region and a fifth region,
The third region comprises a third metallic material,
Said fourth region comprising a fourth metallic material,
Said fifth region comprising a fifth metal material,
Wherein the first, second, third, fourth and fifth metal materials are connected to each other through a net attraction,
Wherein the hip prosthesis has a longitudinal axis from distal to proximal,
Wherein the first, second, third, fourth and fifth regions are continuously positioned along the longitudinal axis such that a difference in elasticity is exerted on the elasticity of the hip artificial organ along the longitudinal axis of the hip prosthesis Affected, hip artificial organ. The method of claim 3,
Wherein the first metallic material is more resilient than the second metallic material,
Wherein the second metallic material is more resilient than the third metallic material,
Wherein the third metal material is more elastic than the fourth metal material,
Wherein the fourth metallic material is more resilient than the fifth metallic material. The method of claim 3,
Wherein the first metallic material is more resilient than the second metallic material,
Wherein the second metallic material is more resilient than the third metallic material,
Wherein the third metal material is less elastic than the fourth metal material,
Wherein the fourth metallic material is less elastic than the fifth metallic material. The method of claim 3,
Wherein the first metallic material is more resilient than the second metallic material,
Wherein the second metallic material is more resilient than the third metallic material,
Wherein the third metal material is more elastic than the fourth metal material,
Wherein the fourth metallic material is less elastic than the fifth metallic material. 7. The method according to any one of claims 3 to 6,
When the hip prosthesis is implanted in a patient,
Wherein the first region is a nearest upper one of the first, second, third, fourth, and fifth regions,
The second region is a second nearest upper region of the first, second, third, fourth, and fifth regions,
The third region is a third nearest upper region of the first, second, third, fourth, and fifth regions,
The fourth region is a fourth latest upper region of the first, second, third, fourth, and fifth regions,
Wherein the fifth region is a fifth, most recent upper region of the first, second, third, fourth, and fifth regions. 8. The method of claim 7,
Wherein the first metallic material is more resilient than the second metallic material,
Wherein the second metallic material is more resilient than the third metallic material,
Wherein the third metal material is more elastic than the fourth metal material,
Wherein the fourth metallic material is more resilient than the fifth metallic material. 8. The method of claim 7,
Wherein the first metallic material is more resilient than the second metallic material,
Wherein the second metallic material is more resilient than the third metallic material,
Wherein the third metal material is less elastic than the fourth metal material,
Wherein the fourth metallic material is less elastic than the fifth metallic material. 8. The method of claim 7,
Wherein the first metallic material is more resilient than the second metallic material,
Wherein the second metallic material is more resilient than the third metallic material,
Wherein the third metal material is more elastic than the fourth metal material,
Wherein the fourth metallic material is less elastic than the fifth metallic material. 3. The method of claim 2,
Wherein the hip joint prosthesis is configured to bend between a curvilinear curve having a curvature value < 2 > between the first end and the second end. 3. The method of claim 2,
Wherein the hip prosthesis is configured to bend between a curvature of? (Curvature value) > 4 between the first end and the second end. 3. The method of claim 2,
Wherein the hip prosthesis is configured to twist to an angle of twist of (phi)> 0.005 pi radian between the first end and the second end. 3. The method of claim 2,
Wherein the hip prosthesis is bent between a first end and a second end with a curvature of κ (curvature value)> 2 and is twisted to an angle of twist of (φ)> 0.005π radian. Agency.

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