TR201912235A1 - MULTI-AXIAL ANGULAR HIP PROSTHESIS FOR ANIMALS - Google Patents

Abstract

The subject of the invention is about the new design multi-axis angular hip prosthesis that is fully compatible with the hip joint by capturing the closest hip joint angular values suitable for the anatomy of the animals in order to restore the joint functional function in the hip joint with reduced or lost movement function due to various reasons in four-legged animals. In particular, the invention relates to a multiaxial angular hip prosthesis designed in accordance with the bone structure in order to eliminate painful bone and joint deformations caused by traumatic arthritis, fractures and similar reasons in the hip joint of four-legged animals, especially cat and dog groups in the medical medical field.

Description

DESCRIPTION MULTIAXIS ANGULAR HIP PROSTHESIS FOR ANIMALS Technical Area The subject of the invention is the movement function in quadrupedal animals for various reasons. In the diminished or lost hip joint, the joint can regain its functional function. Open the hip joint closest to the animal anatomy in order to gain Newly designed multi-axis angle that is fully compatible with the hip joint by capturing the values of the hip joint. related to hip replacement.

The invention is particularly useful in the medical field, especially in the groups of cats and dogs. traumatic arthritis in quadrupedal hip joint, kEIJZI and so on Removal of aggreIJEbone and joint deformationsII caused by reasons Multiaxial angular hip prosthesis designed in accordance with the bone structure for the purpose It is related to. Prior Art Usually cats and dogs kLEIJZI in different bones of the body from time to time due to trauma casesüla karsüêsillnaktadîl One of these klIIJZl cases is the hip joint. KLEEIEIARIE In the current technique, the quadrupedal IE animals, the part that occurs in the hip joint IEI Excision arthroplasty technique used in tibial bones, application after at least 60 days before the patient starts walking again and at the end of this period, he should receive physical therapy for at least 2 years[l]11].

If the recovery period is not long after the operation, the patient needs are causing him to return to a situation that can be met too late. Excision arthroplasty applied to animals in the state of the art it creates a functional false joint In the operations, klglag, painful muscle atrophy and lameness occur in the related leg. can bring. Most common in dogs undergoing excision arthroplasty Karsuhsuan complication due to osteotomy line failure, a sharp bone drawing in collum femoris Pain in the postoperative period by continuous contact with the dorsal edge of the hip bone creatIB may also cause the development of osteoarthritis. In our country, it is generally applied by veterinarians in hip joint ears. The method is excision arthroplasty by taking the caput femoralis in the hip joint. This It was difficult to apply the method in dogs with a weight of 15 kg and above[gl:l It is globular and extends from the height of the pelvis of the femoral bone upwards. elevation, in this case, the formation of sciatic tensions and the patient Problems such as inability to walk are emerging. Excision arthroplasty in practice, also linear force on the trochanter major Since it does not come, osteoporosis develops in the femur bone and especially the quadriceps A severe atrophy appears in the femoris muscle.

In the current technique, human hip prosthesis systems are scaled down. trying to be adapted to animals EIBnStIE which is still trying this method There are big companies around the world that have all the open values and values in these companies. technical features are exactly the same as human prosthesesIEL But hips in animals Openings vary between 15° and 145° according to the Additional conditions, and human It cannot be fixed with 135° as in the models. SeparateEla healthy action The mechanism is 225° in animals and 160° in humans. Because, hip systems produced and developed for humans luxation in animals, It causes relaxation and contractions. These clavicles mentioned are It is observed as sputum and there are very long processes for its treatment. required.

Purpose of the Invention In order to solve the problems existing in the above-mentioned existing art, the invention quadrupedal animals may have decreased movement function for various reasons or In the lost hip joint, the joint regained its functional function. The closest hip joint opening values suitable for animal anatomy, such as new design fully compatible with hip joint & multi-axial angled hip related to the prosthesis.

The primary aim of the invention is to use the quadrupedal hand animals, multiaxial in the hip joint. clIIJZIIars occurring in the hip joint using an angular hip prosthesis nonunion, delayed union or avascular necrosis To reduce complication rates to a minimum.

The aim of the invention is especially hip thanks to the intertwined double bass system. movement mechanismIel to increase up to 235° With this opening, the hip luctions are prevented and shearing that may overlap the shaft As a result of the forces and the related biomechanical axis changes, can be passed. Thus, it is possible to occur in all cats and dogs[[lliZllarl:many high hip dysplasia, shoddy femorais keIJZllaru due to trauma luxations, ruptures of lgamentum teres, Zl and after pathological bones Artificial joint system with full functionality in joint replacements developed.

Another purpose of the invention is to use multiaxial angled hip prosthesis with centering. into the medullary canal while placing 1/3 of the femoral bone with the proximal area. centering the stems on each side of the stem if it will be used with cement. ElblIlakEIJinaktadE, which takes on the structure of bone cement evenly with an area of mm If it will be used without cement, it is equally possible to build bone to the prosthesis from anywhere. to provide Thanks to the obtained invention, it is related to hip joint with quadrupedal animals. Animals are comfortable after removal of the IIEs by operation. any be treated without any anatomical or biomechanical complications. will be possible DETAILED DESCRIPTION OF THE INVENTION To achieve the purpose of this invention, quadrupedalhand animals are placed in the hip joint. to be used in the reconstruction of defects caused by any reason. Multiaxial angled hip designed in accordance with the anatomy of the hip joint The prosthesis is shown in the attached figures.

From these figures; Figure 1 - Full side view of the bipolar dlgl cup friction area Ventral view of bipolar dlSl cup Bipolar dg cup inferior oblique view Globe full side view Sphere lower oblique view Sphere lengthening surface lower oblique view Figure 7 - Top view of the femoral stem Figure 8 - Full lateral view of the femoral stem Figure 9 - Full medial view of the femoral stem Figure 10 - Femoral stem ventro-lateral oblique view Figure 11 - Side view of multiaxial angled hip prosthesis assembled Figure 12 - Assembly of multiaxial angled hip prosthesis Full lateral view Figure 13 - Multiaxial angled hip prosthesis 235° angled rotational motion Figure 14 - Centering full side view Figure 15 - Centering lower oblique view Reference Numbers 1. Bipolar dlSl cup friction area UHWMPE (Ultra-high molecular agllElZllEl polyethylene) special hardened polyethylene Steel-polyethylene lock ring area] DE concave sphere holding surface Special form sphere friction area Special sphere area produced from CoCrMo (cobalt chrome m0libdenum)alasl31] Ball prosthesis with reverse conical locking areasII Spherical extension surface 1/3 proximal femur lateral radial area .Sphere conical seating surface angle 11.Collum cut surface sitting collar area] 12.1/3 prosimal femur ventral narrowing surface areaHand 13.Tr0chanter minor surface seating areaEI 14.Centering mounting area .Distal medullary canal nutrition area 16.0steintegration adhesion surface areaHand 17. Proximal femur anterior cortex rotation seating area 18. Proximal femur anterior distal minor sitting rotation areaHand 19.Tr0chanter minor support area .Centering UHWMPE medullary canal diameterIZl 23. Multi-axis angular hip prosthesis 24. Bipolar dlSl cup .Sphere 26. Femoral stem 27. Centering Multiaxial achillary hip prosthesis for insertion into the femoral bone 1/3 of the femur is placed with the proximal area. The invention in question; bipolar dsl There are four types of cup (24), globe (25), femoral stem (26) and centralizer (27). consists of the main element.

The first main element is the bipolar dlg cup (24); Cllîsl cup friction in Figure 1 area:{1), steel-polyethylene lock ring areaE(3) in Figure 2 and Figure 3 It consists of the dlSl convex sphere holding surface (4). Convex sphere holding surface (4) located between -2.55° and -5.75°, bipolar DISI cup (24) locking the bipolar dßl cup (24) and the sphere (25) together by being in sagtadlîl DIS] concave sphere holding surface (4), UHWMPE (Ultra high molecular aglElElZlllZpolyethylene) plastic derivative such as special hardened polyethylene (2) It is made of material and has a width between 16.15 mm and 36.65 mm. The special form contains the sphere friction areaEI(5). UHWMPE micron baseIII Since it is a flexible material, the sphere (25) is placed in the bipolar dlSl cup (24). difficult to enter Separately, UHWMPE is particle-free/non-particle-free and It is a non-degenerative system. DS] cup friction areaE(1) 10.2 mm It is a steel surface with a width of between 16.15 mm and UHWMPE (Ultra produced from special hardened polyethylene (2). Steel-polyethylene for interlocking of the dlSl concave sphere holding surface (4) with key segment area (3) needed Sliaslîla cl& concave sphere holding surface (4), with steel-polyethylene lock ring area (3) and female cup friction area (1) interweaving, bipolar dlSl cup (24) is obtained.

The second main element is the sphere (25); As much as the resected hood in Figure 4 or a slightly smaller diameter CoCrMo (cobalt chrome molybdenum)alaß1dan Special sphere area IZ(6), which is produced with a width between 10.2 mm and 16.15 mm, Spherical prosthesis with a width between 6.8 mm and 11.5 mm in Figure 5 reverse taper locking area(7), 0.43mm to 10.35mm in Figure 6 It consists of a sphere length extension surface (8).

Special sphere areaE(6) produced from CoCrMo (cobalt chrome molybdenum) alasui, surface A rolling area is determined according to the size of the resected It can imitate the hood exactly. The ball prosthesis below the ball (25) the reverse taper locking areaEl(7) and the femoral stem (26) are locked together.

Sphere lengthening surface (8), which can be changed according to the amount of collum resected. It has dimensions and can imitate the distance of the collum. The third main element is the femoral stem (26); main unit that provides integrity with the femoral shaft tasülönekanizmadlîl Femur stem, cat and dog Appendix II femur axle valuable It is produced with an angulation angle of 5°. Femoral stem (26); place in figure 9 1/3 proximal femur lateral with angles between 4.25° and 8.05° the radial area (9) has angles between 0.85° and 5.75° in Figure 7 spherical conical seating surface angle(10), collum cut surface in Figure 8 seated collar areaEl(11), the angle between 0.85° and 3.16° in Figure 8 1/3 prosimal femur ventral narrowing surface area with a value of:(12), Figure 7 trochanter minor surface seating (13), 2.55 mm in Figure 9 with centering mounting area (14) with a width of between 3.45 mm and Fig. Osteintegration adhesion surface area with a width between mm (16), The proximal width of 3.4 mm to 10.6 mm in Figure 10 femur anterior cortex rotation seating area(17) and 3.4 mm in Figure 10 between 10.6 mm in width proximal femur anterior distal minor sitting turning area E(18) and having an angle of 1.7° to 2.3° in Figure 9 consists of the trochanter minor support area (19). femoral stem Sphere with conical seating surface angle on (26) yardluilgla sphere (25) it locks onto the femoral stem (26). Spherical conical seating surface anglelgEUO) reverse It has a conical area that angles from 8 mm to 10 mm.

In the resected part, the collum is made inwardly, and the gluteus minimus muscleII WORKINGThere is a side area where the collum muscle can be worked comfortably. The cut surface is a recessed opening with the number of sitting collar areaZl(11) are given. Collum cut surface thanks to the seated collar areaE(11), femoral After insertion of the stem (26) gluteus minimus muscle II is not inhibited and this muscle is in the required anatomical balance. can be played. Distal medullary canal nutrition within the femoral stem (26) distal medullary canal nutrition area(15), bone It helps the intramedullary nutrition inside and vitalizes the bone. The medullary canal in the bone is ascending downward 1/3 prosimal femur ventral narrowing surface area (12) with lateral and 1/3 proximal femur lateral radial area (9) with anteroposterior The narrowing structure mentioned in the position is imitated. These revelations It imitates the femoral stem (26) and the medullary canal exactly. whether the prosthesis is adhered to the bone or the correct amount of cement is dispersed Osteintegration attachment in the femoral stem (26) surface areaHand(16) is important to ensure better adhesion of the prosthesis to the bone. an area on the inner surface of the femoral bone and below the trochanter minor proximal femur anterior cortex rotation seating areaE(17) and proximal femur Anterior distal minor sitting rotation area EI(18) in two different With opening, the bone turns. Thanks to these openings, the femur Two different anatomical angles on the inner surface of the bone and below the trochanter minor is being done. Until the multiaxial achillary hip prosthesis (23) adheres to the bone or If it is also cemented, it takes approximately one week until the cement is completely dry. the prosthesis mentioned in the bone from the height we have determined. it should not descend further, the trochanter minor support that provides this areaIIE (19). Hand (19) receiving trochanter minor support, resected in the femoral bone It is a surface that fits perfectly on the surface. With trochanter minor support area E(19) when said prosthesis is placed on the bone, the cutting line is equivalent to Etrochanter minor is coming. The load on the trochanter minor must be separated to ensure full distribution. a trochanter minor surface seating (13) and a trochanter minor A separate area is being created to sit in. centering UHWMPE medullary canal diameter IIQZO, with a length of mm Stretchable with a width between 0.85 mm and 1.73 mm in figure 14 wing structure (EIEQZI) and its width between 2.55 mm and 3.45 mm in Figure 15 It consists of the femoral stem mounting area (22).

To speak of a representative application of the invention, multiaxial angular In order to fit the hip prosthesis into the femoral bone, the hood and collum in the proximal area of the femur were resected and the prosthesis anatomical structure is provided to imitate after resection A multiaxial angular hip prosthesis is impacted on the medullary canal hand.

The main goal in this impaction is to complete the static and biomechanical forces. linearly transfer over the prosthesis to the rowtlEL Multiaxial angled hip centering so that the prosthesis (23) stays centered within the femoral bone (27) from the femoral stem mounting area (22) of the multiaxial angular hip prosthesis (23) The stem is mounted with the centering mounting area (14) at the lower end. and into the bone with said prosthesis centralizer (27). is sent. Centering UHWMPE located on the centering (27) medullary canal diameterZO) and flexible wing structureElüZl) medullary canal diameterEa the medullary canal of the femoral stem (26) in the flexion joint, in accordance with Femoral stem (26) stays in the center of the femoral bone After it is placed, the ball (25) is connected to the ball (25) inverted conical After being placed on the femoral stem (26), it is called the femoral component. The bipartite system is coming to an end. Bipolar, an important element of our invention cllîsl cup (24), friction with which the femoral bone moves within the pelvis The bipolar dlSl cup has a friction area (1) corresponding to the area. dlSl cup friction areaII(1), inside the sphere (25) bipolar dlSl cup (24) inner is the surface. COCrMo (cobalt chrome molybdenum) as the dlSl surface of the sphere (25) Special sphere areaE(6) bipolar dlSl cup (24) with surface inside special sphere produced from alloy The form sphere moves in the friction field IZ(5). CoCrMo (cobalt) with femoral stem (26) in multiaxial angled hip prosthesis (23) Special sphere areaEl(6) produced from chrome molybdenum) alasui, locked to each other Special sphere produced from COCrMo (cobalt chrome molybdenum) alaslBw dßl on the most dlSl surface of the bipolar cllIsl cup (24) located on arealZ(6) cup friction areaHand(1) locateddlîl Multiaxial aclalal hip prosthesis (23) the dlSl cup contacts the hip bone with the friction areaIZ(1). with globe (25) bipolar cllSl cup (24) act together as they impact each other and the bipolar cllgl cup (24) while said locking parts move UHWMPE (Ultra-high molecular aglyalAlElpolyethylene) contained in the special The dlSlconvex sphere holding surface (4) produced from hardened polyethylene (2) is also evident. moves up to an angle. Spherical conical seating surface angle(10) dßl hip bone resting on the concave sphere holding surface (4) up to a 45° opening The friction area of the dlSl cup located inside of it (1) is an angle of 190° around its axis. begins to rotate enough to A total of 235° double-stage rotation movement was gained to the prosthesis (23) It is in progress (Fig. 13). In the current art, multiaxial achillage hip prosthesis (23) cement or screws from the dlSl cup friction area (1) to the hip bone Since it is fixed to the fracture, the external sphere hip bone in the prosthetic head mentioned It could rotate with a maximum angle of 135° inside.

Four-legged animals with my Cat and Dog groups. with the femoral bone the hip bone is not straight, it is angled. To create a prosthesis, basthalan and achillegers located in the hip joint laboratory studies on it, and the above-mentioned angle The minimum and maximum dimensions of the areas have been determined. Obtained The results were again optimized with theoretical and practical applications, used in the production of axial angled hip prosthesis (23)EIJlnlSltlEl

Claims (14)

REQUESTS 1. The invention is a multiaxial angled hip prosthesis for use in hip joint surgeries in animals. Its characterizing feature is; At least one bipolar dlgl cup friction areaE on the steel-polyethylene lock ring areaE(3), at least one dßl-curved sphere holding bipolar dlgl cup friction areaE made of UHWMPE (Ultra-high molecular agEluZllEpolyethylene) special hardened polyethylene (2) At least one steel-polyethylene lock segment between (1) and said concave sphere holding surface (4), at least one special form sphere friction area JS located within said convex sphere holding surface (4), with sphere (25) at least one spherical conical seating surface angleEülO that can be contacted, at least one collum cut surface seating collar areaE(11) on the femoral stem (26), at least one 1/3 prosimal on the femoral stem (26) femoral ventral narrowing surface areaE(12), at least one trochanter minor surface seating E(13) on the femoral stem (26), at least one centering mounting areaE(14) on the femoral stem (26), femoral At least one osteintegr on the stem (26) ion attachment surface area(16), at least one proximal femur anterior distal minor sitting rotation area(18) on the femoral stem (26), at least one trochanter minor support area on the femoral stem (26): { 19), at least one flexible wing located on the centralizer (27) located on the centralizer (27) and at least one femoral stem assembly area on the internal centralizer (27): {22). 2. Bipolar dlSl cup according to claim 1 with friction area (1), its characterizing feature is; Its width should be between 10.2 mm and 16.15 mm. 3. It is a convex spherical holding surface (4) according to claim 1, and its characterizing feature is; Whether it is between -2.55° and -5.75°-:l 4. A special form sphere friction area according to claim 1, characterized in that; Its width should be between 16.15 mm and 36.65 mm 5. It is a spherical conical seating surface angle according to claim 1, and its characterizing feature is; Being between 0.85° and 5.75° 6. 1/3 prosimal femur ventral narrowing surface area E(12) according to claim 1, its characterizing feature is; It should be between 0.85° and 3.16° 7. Centering mounting areas according to claim 1: 1(14) and its characterizing feature is; Its width should be between 2.55 mm and 3.45 mm. 8. Osteintegration adhesion surface area (16) according to claim 1, its characterizing feature is; Its width is between 29.75 mm and 86.25 mm. 9. Proximal femur anterior distal minor seating rotation area (18) according to claim 1, its characterizing feature is; Its width should be between 3.4 mm and 10.6 mm. 10. The trochanter minor support area IZKI9) according to claim 1, characterized in that; Between 1.7° and 2.3° 11. The centering UHWMPE medullary canal diameter ZKZO) according to claim 1, its characterizing feature is; Its length should be between 4.25 mm and 12.65 mm. 12. It is a flexible wing structure according to claim 1, and its characterizing feature is; Width between 0.85 mm and 1.73 mm 13. It is the femoral stem mounting area (22) according to claim 1, and its characterizing feature is; Its width is between 2.55 mm and 3.45 mm. 14. It is a multiaxial aclala hip prosthesis used in hip joint surgeries in animals according to claim 1, its characterizing feature is; Having curves compatible with the anatomy of the hip bone