CN107595355B - Orthopedics is with thighbone distal end osteotomy device and positioner thereof - Google Patents

Abstract

The invention discloses a distal femur osteotomy device for orthopedics and a positioning device thereof, comprising a distal femur fixing plate, wherein the center of the upper surface of the distal femur fixing plate is connected with an intramedullary rod in a welding way, the lower surface of the distal femur fixing plate is welded with two second connecting plates, a lower end connecting fixing plate is arranged below the second connecting plates, the distal femur of a patient can be osteotomy through the distal femur fixing plate, the distal femur fixing plate is provided with a groove, the distal femur of the patient can be fixed through the groove, so that the fixation is more convenient, the proximal femur of the patient can be connected through the lower end connecting fixing plate, the distal femur is prevented from twisting, the fixation is more comprehensive, and the positioning plate can be used for positioning, the distal femur osteotomy device for orthopedics and the positioning device thereof have simple structures and convenient installation, and can not only prevent rotation, and can fix more conveniently, provide convenience for the doctor.

Description

Orthopedics is with thighbone distal end osteotomy device and positioner thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to an orthopedic femur distal osteotomy device and a positioning device thereof.

Background

With the overall entrance of China into the aging society, more and more elderly osteoarthropathy patients aged over 65 are available, and the total knee replacement becomes an effective method for treating the advanced osteoarthropathy, so that the pain can be relieved, the functions can be improved, and the life quality can be improved. Firstly, the depth of the osteotomy at the distal end is appropriate, and the osteotomy is too shallow or too deep, which can cause asymmetry of the flexion-extension gap; secondly, the osteotomy plane needs to form a proper angle with the femur dissection axis and is perpendicular to a lower limb force line (femur mechanical axis), so that the position and the direction of the knee joint femur prosthesis meet the mechanical requirements after the operation, the knee joint replacement operation is guaranteed to be successful.

Disclosure of Invention

The invention aims to overcome the existing defects and provides an orthopedic distal femur osteotomy device and a positioning device thereof, which have the advantages of simple structure, convenient installation, capability of preventing rotation, more convenient fixation, convenience for doctors and effective solution to the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thighbone distal end cuts bone device and positioner thereof for orthopedics, includes thighbone distal end fixed plate, the upper surface center of thighbone distal end fixed plate is connected with the intramedullary pole through the welded mode, thighbone distal end fixed plate lower surface welding has two second connecting plates, the below of second connecting plate is equipped with lower extreme connection fixed plate, and the upper surface of lower extreme connection fixed plate is equipped with two first connecting plates, connects through connecting the pivot between two first connecting plates and the second connecting plate.

As a preferable technical scheme of the invention, the upper surface and the lower surface of the femur far-end fixing plate, which are connected with the fixing plate, are provided with grooves, and the insides of the grooves are of arc structures.

According to a preferable technical scheme of the invention, sliding grooves are formed in the lower sides of the two ends of the femur far-end fixing plate, an adjusting plate is arranged in each sliding groove, and a positioning plate is welded at the upper end of each adjusting plate.

As a preferable technical scheme of the invention, the adjusting plate is of an L-shaped structure, and the lower end of a vertical plate of the adjusting plate is of an arc-shaped structure.

According to a preferable technical scheme of the invention, fixing bolt buckles are welded on two sides of each positioning plate, the fixing bolt buckles on the two positioning plates correspond to each other one by one, and bolt holes are formed in the fixing bolt buckles.

As a preferred technical scheme of the invention, the two positioning plates correspond to each other left and right, the positioning plates are of arc structures, and anti-skid grains are arranged on one sides of the positioning plates opposite to each other.

As a preferred technical solution of the present invention, two fixing through holes are provided at a lower end of one side of the adjusting plate, and threaded holes corresponding to the fixing through holes are provided at two ends of the distal femur fixing plate.

As a preferred technical scheme of the invention, two connecting lug plates are arranged on two sides of the lower surface of the fixing plate, and two positioning screw holes are arranged at the lower ends of the connecting lug plates

As a preferred technical scheme of the invention, each positioning plate is provided with six fixing bolt buckles, and the six fixing bolt buckles are uniformly distributed on two sides of the positioning plate

According to a preferable technical scheme of the invention, a titanium alloy layer is plated in the grooves of the femur far-end fixing plate and the lower end connecting fixing plate, and anti-skid grains are arranged on the upper surface of the titanium alloy layer.

Compared with the prior art, the invention has the beneficial effects that: this orthopedics is with thighbone distal end device of cutting bone and positioner is last to have set up thighbone distal end fixed plate, can cut the bone to patient's thighbone distal end through thighbone distal end fixed plate, and set up the recess on the thighbone distal end fixed plate, can carry out thighbone distal end to patient through the recess and fix, it is more convenient to make fixed, can connect the thighbone near-end that the fixed plate can be to patient's below through the lower extreme, prevent that the thighbone distal end from taking place the wrench movement, it is more comprehensive to fix, can fix a position through the locating plate, this orthopedics is with thighbone distal end device of cutting bone and positioner simple structure, high durability and convenient installation, not only can prevent to take place the rotation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic side view of the present invention.

In the figure: 1 locating plate, 2 fixed bolt buckles, 3 thighbone distal end fixed plates, 4 lower extreme connection fixed plates, 5 connection otic placodes, 6 location screw holes, 7 fixed through hole, 8 regulating plates, 9 intramedullary rods, 10 first connecting plates, 11 second connecting plates, 12 connection pivot, 13 slip recesses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a distal femur osteotomy device for orthopedics and a positioning device thereof comprise a distalfemur fixing plate 3, wherein a distal femur of a patient can be osteotomy-cut through the distalfemur fixing plate 3, the center of the upper surface of the distalfemur fixing plate 3 is connected with anintramedullary rod 9 in a welding way, the distalfemur fixing plate 3 can be fixed through theintramedullary rod 9, so that the distalfemur fixing plate 3 is more firmly connected, twosecond connecting plates 11 are welded on the lower surface of the distalfemur fixing plate 3, a lower end connectingfixing plate 4 is arranged below the second connectingplates 11, two first connectingplates 10 are arranged on the upper surface of the lower end connectingfixing plate 4, the two first connectingplates 10 and the second connectingplates 11 are connected through a connectingrotating shaft 12, grooves are arranged on the upper surface of the distalfemur fixing plate 3 and the lower surface of the lower end connectingfixing plate 4, and the inside of the grooves is of, the femur far-end fixing plate 3 and the groove of the lower end connectingfixing plate 4 are internally plated with a titanium alloy layer, the upper surface of the titanium alloy layer is provided with anti-skid threads, the femur far-end fixing of a patient can be carried out through the grooves, so that the fixing is more convenient, the lower sides of the two ends of the femur far-end fixing plate 3 are provided with slidinggrooves 13, adjustingplates 8 are arranged inside thesliding grooves 13, the upper ends of the adjustingplates 8 are welded withpositioning plates 1, the adjustingplates 8 are in L-shaped structures, the lower ends of the vertical plates of the adjustingplates 8 are in arc-shaped structures, fixingbolt buckles 2 are welded on the two sides of thepositioning plates 1, thefixing bolt buckles 2 on the twopositioning plates 1 correspond one by one, bolt holes are arranged on thefixing bolt buckles 2, eachpositioning plate 1 is provided with sixfixing bolt buckles 2, the sixfixing bolt buckles 2 are uniformly distributed on the two, the device is fixed and the connection is more stable, the twopositioning plates 1 correspond to each other left and right, thepositioning plates 1 are of arc structures, the anti-slip patterns are arranged on one opposite sides of thepositioning plates 1, thepositioning plates 1 are connected with the bones of a patient more stably through the anti-slip patterns, two fixing throughholes 7 are arranged at the lower ends of one sides of the adjustingplates 8, threaded holes corresponding to the fixing throughholes 7 are arranged at the two ends of the distalfemur fixing plate 3, the distance between the twopositioning plates 1 can be adjusted through the adjustingplates 8, the adjustment is more convenient, two connectingear plates 5 are arranged on the two sides of the lower surface of thefixing plate 4, twopositioning screw holes 6 are arranged at the lower ends of the connectingear plates 5, the lower end connectingfixing plate 4 can be fixedly connected with the lower end of the patient through thepositioning screw holes 6, the bones can be prevented from rotating, the positioning is more comprehensive, and, the installation is convenient, the rotation can be prevented, the fixation is more convenient, and convenience is provided for doctors.

When in use: the femur far end of a patient is placed in a groove of a femur farend fixing plate 3, anintramedullary rod 9 is inserted into bone marrow of the femur far end to fix the femur farend fixing plate 3, an adjustingplate 8 slides in asliding groove 13 to adjust the distance between twopositioning plates 1, two one-to-one correspondingfixing bolt buckles 2 are connected through bolts to fix thepositioning plates 1 on bones of the patient, the lower end of the adjustingplate 8 is fixed on the femur farend fixing plate 3 through bolts, the femur near end below the patient is connected through a lower end connecting and fixingplate 4, and the lower end connecting and fixingplate 4 is fixedly connected with the lower end of the patient through apositioning screw hole 6 to prevent the femur far end from rotating.

According to the distal femur osteotomy device for orthopedics and the positioning device thereof, the distalfemur fixing plate 3 can be used for osteotomy of the distal femur of a patient, the groove is formed in the distalfemur fixing plate 3, the distal femur of the patient can be fixed through the groove, so that the fixation is more convenient, the proximal femur of the lower part of the patient can be connected through the lower end connecting andfixing plate 4, the distal femur is prevented from twisting, the fixation is more comprehensive, and the positioning can be performed through thepositioning plate 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a positioner is cut to distal femur for orthopedics, includes distal femur fixed plate (3), its characterized in that: the center of the upper surface of the femur far-end fixing plate (3) is connected with an intramedullary rod (9) in a welding mode, two second connecting plates (11) are welded on the lower surface of the femur far-end fixing plate (3), a lower end connecting fixing plate (4) is arranged below the second connecting plates (11), two first connecting plates (10) are arranged on the upper surface of the lower end connecting fixing plate (4), and the two first connecting plates (10) are connected with the second connecting plates (11) through connecting rotating shafts (12); grooves are formed in the upper surface of the femur far-end fixing plate (3) and the lower surface of the lower end connecting fixing plate (4), and arc-shaped structures are arranged inside the grooves; sliding grooves (13) are formed in the lower sides of the two ends of the femur far-end fixing plate (3), an adjusting plate (8) is arranged in each sliding groove (13), and a positioning plate (1) is welded at the upper end of each adjusting plate (8); the adjusting plate (8) is of an L-shaped structure, and the lower end of a vertical plate of the adjusting plate (8) is of an arc-shaped structure;

fixing bolt buckles (2) are welded on two sides of the positioning plates (1), the fixing bolt buckles (2) on the two positioning plates (1) correspond to each other one by one, and bolt holes are formed in the fixing bolt buckles (2); two fixing through holes (7) are formed in the lower end of one side of the adjusting plate (8), and threaded holes corresponding to the fixing through holes (7) are formed in the two ends of the femur far-end fixing plate (3); six fixing bolt buckles (2) are arranged on each positioning plate (1), and the six fixing bolt buckles (2) are uniformly distributed on two sides of the positioning plate (1).

2. The distal femoral osteotomy positioning device of claim 1, further comprising: the two positioning plates (1) correspond to each other left and right, the positioning plates (1) are of arc-shaped structures, and anti-skidding grains are arranged on one sides, opposite to the positioning plates (1).

3. The distal femoral osteotomy positioning device of claim 1, further comprising: two connecting lug plates (5) are arranged on two sides of the lower surface of the lower end connecting fixing plate (4), and two positioning screw holes (6) are formed in the lower ends of the connecting lug plates (5).

4. The distal femoral osteotomy positioning device of claim 1, further comprising: the femur far-end fixing plate (3) and the groove of the lower end connecting fixing plate (4) are internally plated with a titanium alloy layer, and the upper surface of the titanium alloy layer is provided with anti-skid grains.

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