Prosthesis tool for crotch of femur

[Detailed Description of the Invention]

The present invention more specifically than the prosthetic dentistry implement of the crotch of a femur relates to the film frame elements of the thigh. (2) A hip joint formation way includes installing a patient in the proper position of the anesthetizing method and an operating table. Next, a patient's body is stabilized, and it prepares by washing, and wraps in cloth. Incision is made and subcutaneous tissue is divided. Suitable soft tissue is cut off and it is divided for exposure of/or a crotch, and transposition. A head of femur rotates for better exposure, after being transposed from the connected cotyloid cavity. Osteotomy of a femur head is performed to the next and a head of femur and a head are separated from a femur axis. Next, it is prepared in order that a middle marrow pipe may adjust these film frame elements of a prosthetic dentistry implement, and finally this film frame is fixed in middle marrow. It is proposed in order that many femur insertion instruments may use it for a crotch junction prosthetic dentistry implement before the present invention. The ground globular forms or the small head which each generally attached on the frame is included, and it is inserted in the middle marrow pipe of a femur. Generally, cement hardening of the insert is carried out and it is being fixed to within the pipe [ the ] to energization or load. Such an example is indicated by United States patent 3,102,516.3.620th, 951.3,818,512.3,874,003, (3) 3.875, 593.3,965,490.4,012,796, and 4,080,666. The space between the surface and the inner side outline of Cavity made by the middle marrow pipe or the characteristic of an intermediate part plays a role important for fixing an insert to a femur properly outside a femur trunk. In order to apply cement to within the pipe [ the ], big surface area was provided, and if the trunk of a long time was desirable enough in order to give strong resistance to rotation, it is recognized for a long time. however, a middle medullary cavity with a big long trunk -- especially -- a leg -- lead to a pipe -- it requires by Dog shopping. because -- if the very big entrance way for the surfaces of all the is not provided -- an insert -- a leg -- it is because it becomes impossible to let it pass to a pipe. As a result, a big crevice or space will be formed between the outer surface of a trunk and the inner side surface of Vaginal cavity where the medullary cavity was inserted. It was difficult to make until now the glove fit (fit that a glove suits a hand exactly) with the resistance to adherence and rotation of a trunk outstanding, between the thigh thigh shaft of bone and the middle medullary cavity. Then, the object of the present invention is to provide the prosthetic dentistry implement of the crotch of the femur which has frame elements which form a glove fit when (4) insertion is carried out at the middle medullary cavity of a femur, and has the resistance which excelled [ trunk / this ] in adherence to rotation in the proper place. According to the present invention, the prosthetic dentistry implement of; femur film changes from the frame elements divided in general to a proximal part and a substantial distal part. A trunk is longitudinal direction 1 (it is curving back for a while as Overflowing.). The proximal part had the small twist of about five to 15 ", and the twist is back prolonged through the internal surface from the front of the trunk. Preferably, the length of a distal part is about 2 to 6 times the proximal part, when it cured and measures to an internal surface, and it starts in general in the place of the boundary between a distal part and a proximal part. A twist is prolonged over the whole proximal county and it is preferred that it is about 9 degrees. As for the outer surface of a proximal part, in order to stimulate bony growth, it is preferred that it is perforated covering. It may separate into proximity, a center, and a distance paragraph equally in general, and the proximal part of a trunk has the horizontal flare provided on the distal part which carries out wedge linkage with a femur, when a trunk is a closet. The neck is prolonged from the proximal paragraph of the proximal part of a trunk, and is a method (5) of general of a trunk. It has an axis at an angle of about 45 degrees in Toward. Preferably, the neck has inclined forward at an angle of about five to 15 ", and the small head may be fixed to the neck by Moosefutz (Morse f i t). In addition, the new feature and advantage of the present invention are relation l to an accompanying drawing. - Probably, it will be clear to a person skilled in the art from the explanation which carried out Described. When it explains in detail with reference to drawings, prosthetic dentistry implement 10 of a femur film contains frame elements 12 which have neck 14 to which small head 16 is being fixed. 1st [ The ] figure-figure 16 expresses the prosthetic dentistry implement of the left which has a front field (Drawing 1), a back side (Drawing 4), the side (Drawing 6), and an internal surface (Drawing 5). Trunk 12 fits binding in made middle medullary cavity 18 in left large 11i1u bone 20 so that it may explain enough [ further ] in the bottom. Neither any crevices nor a blank is between the inside of Cavity 18, and trunk 12, and it fits it like a glove. Trunk 12 is substantially divided in general into long distal part 26 with proximal part 22. about 2 of the length of the proximal part which measured the length of distal part 16 along the internal surface (Drawing 5) -- it is preferred that it is (6)-3 time. Trunk 12 is drawing small curve 28 on the rear part along with the straight side as best shown in Drawing 6 and 5 figure. A curve about 16 inches (40 or 8 cm) in radius may be used for back curve 28, and it has the object of fixing trunk 12 to a femur, and prevents the rotation relevant to another side femur 20. proximal part 22 has the slight twist which starts in general on the boundary between distal part 26 and proximal part 22 -- it continues up to shoulder 30 which forms the upper part boundary of * proximal part 22. Five to 15 ", preferably this twist [ in / seven to 12 " / especially / 9-degree proximal part 22 ] are prolonged in general from the front field of trunk 12 in one way to a back side through an internal surface. Distal part 26 of screw Listen is [ this ] Drawing 9 showing the state where there is nothing. - It appears in the sectional view of Drawing 12 best. 2 crosses horizontal axis Y at 90' mutually with the sectional view of Drawing 12 [ nine to ], and Drawing 1 means that a crossing forms vertical axis X. It turns out to be This* in which distal part 26 of trunk 12 is not twisted from such combination easily from Drawing 9 and 10 figures. It carries out and is among a rudder (7). Drawing 11 means clearly that the twist starts in proximal part 22 at the angle a which is ascending vertical angle 4 degrees. Then, the upper part tip of proximal part 22 expresses about 9-degree especially desirable twist To hang, and this is shown in Drawing 12. Proximal part 22 of trunk 12 can be divided into division into equal parts in Extensive at proximal Section 32, central Nodairo 4, and distance Section 36. The following reason (distance Section 36 has flare 38 on the side.) If trunk 12 is inserted in femur 20, flare 38 will Interlock with the adjoining bone, will give and press load to a bone by that cause, and will promote growth of the bone of in prosthetic dentistry implement 10 and the surroundings. All the outer surfaces of proximal part 22 have perforated covering 40 in this viewpoint for inner side growth of a bone and an organization. Neck 14 of prosthetic dentistry implement 10 is in the overall direction of trunk 12 at a place with an angle [ A ] of about 45 degrees so that it may be best shown in Drawings 1 and 4. Neck 14 has inside socket 44 of point thin in small head 16, and free end section 42 of point Fine which has two incomes. The characteristic of tapering off of free end section 42 and socket 44 is in making a More fit perform, when small head 16 is fixed to neck 14 (8). common knowledge -- When (a cotyloid cavity with natural small head 16 -- or -- or the form of the ground globular form element which replaces a natural cotyloid cavity and which was tied with the prosthetic dentistry implement and joint of the cotyloid cavity when becoming is carried out.) Neck 14 and small head 16 connected with it have inclined forward in general at an angle of [ B ] five to 15 ", preferably nine to 15 ". Since small head 16 inclines ahead which is about 9 degrees lightly as shown in the 2nd and 3 figure, this anteversion is about 9 degrees. Such anteversion is put on the best position carrying out joint combination of the small head 16 with a natural cotyloid cavity, otherwise a cotyloid cavity prosthetic dentistry implement. Prosthetic dentistry implement 10 of a femur film is planted in femur 20 following proper formation of middle medullary cavity 18 in which neck Osteotomy of a femur and trunk 12 of prosthetic dentistry implement 10 are inserted. In formation of middle medullary cavity 18, the portion of a near lattice-like organization is first excised with a suitable excision instrument (not shown) at end 1 of femur 20. The file which made the same shape trunk 12 in general is applied by the middle Bone thigh pipe of femur 20 following Or~Removal. subsequently, it removes from femur 20 and introduces to middle medullary cavity 18 which carried out trunk 20 for Yo [ the ] (9) obtaining, and formed it. It lets a trunk pass to middle medullary cavity 18, without breaking or interfering with the outline newly formed with the file. Back curve 28 attains a glove fit, without enabling such insertion to one day of middle medullary cavities of the twist in proximal part 22, and Co-rep, and as a result making a crevice or a blank substantially between the lateral surface of trunk 12, and the internal outline of Vaginal cavity 18. Perforated covering on proximal part 22 stimulates bony growth, and horizontal flare 38 promotes this adherence advance. Since tensile load serves as quantity size on the horizontal surface of proximal part 22, horizontal flare 68 has big surface area in the position, in order to apply load and pressure to a contiguity bone, and promotes an internal growth by it. Interlock of horizontal flare 38 to femur 20 is thick to making trunk 12 adhere to middle medullary cavity one day (it contributes and does not need bone cement.). (10) use of the neck of various length provided with each trunk 12 can be carried out by using small head 16 which attached a different internal socket to two pieces of prosthetic dentistry implements which comprise trunk 12 and small head 16. For example, when the long neck is desired, in using short hiding and a long internal socket for internal socket 44 of small head 16, it short-Nuclear the neck at the - trunk 12. Both trunk 12 and small head 16 can manufacture by known art, for example using cobalt 1 chromium / molybdenum, or titanium.

[Brief Description of the Drawings]

In the front of the prosthetic dentistry implement of the crotch of the left femur by the present invention or a front figure, and Drawing 2, Drawing 1 is top views of the prosthetic dentistry implement shown in Drawing 1, The right side view of the prosthetic dentistry implement which showed Drawing 6 in Drawing 1, and Drawing 4 are the back or the back figure of a prosthetic dentistry implement showing in Drawing 1, The left lateral of a prosthetic dentistry implement or the central figure, and Drawing 6 showing Drawing 5 in Drawing 1 are bottom views of the prosthetic dentistry implement shown in Drawing 1, Drawing 7 attaches the small head shown in the section, and the enlarged drawing of the prosthetic dentistry implement of Drawing 1 and Drawing 8 are bottom views of the small head, The section (11) figure to which the swamp took Drawing 9 on 9-9 line of Drawing 1, the sectional view which took the beach on 10 -10 line of 10th [ The ] figure 11 figure 1, the sectional view which Drawing's 11 cured on 11 -11 line of Drawing 1, and was taken, and Drawing 12 are sectional views taken along 12 -12 line of Drawing 1. 10: Artificial Decoration 12 of Femur Film : Trunk Element 14: Neck 16: Small Head 20: Left Femur 18: Middle Medullary Cavity Applicant for a patent Howling squid Inco Porree child Tsudo (12)