CN112155653B - Multifunctional femur osteotomy positioner - Google Patents
Multifunctional femur osteotomy positioner Download PDFInfo
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- CN112155653B CN112155653B CN202011045373.2A CN202011045373A CN112155653B CN 112155653 B CN112155653 B CN 112155653B CN 202011045373 A CN202011045373 A CN 202011045373A CN 112155653 B CN112155653 B CN 112155653B
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- 210000000689 upper leg Anatomy 0.000 title claims description 57
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 58
- 210000001694 thigh bone Anatomy 0.000 claims abstract description 40
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 238000002271 resection Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 9
- 230000000295 complement effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 210000000629 knee joint Anatomy 0.000 description 6
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 208000003947 Knee Osteoarthritis Diseases 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 206010048873 Traumatic arthritis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000013150 knee replacement Methods 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
Abstract
The utility model belongs to the technical field of medical instrument and specifically relates to a multi-functional thighbone cuts bone locator is related to, its including the auxiliary mechanism who cuts bone coupling mechanism, the positioning mechanism of the position of cutting the bone of definite thighbone and stabilize and measure the thighbone size, cut bone coupling mechanism be located between positioning mechanism and the auxiliary mechanism, positioning mechanism is located the top of thighbone, cut bone coupling mechanism be located thighbone end department, cut bone coupling mechanism respectively with positioning mechanism and auxiliary mechanism swing joint. This application has and to cut bone location and thighbone measurement and use multipurposely, adopts and cuts bone coupling mechanism and complementary unit as the benchmark, has retrencied the constitution of apparatus, has increased the rate of utilization of apparatus, has reduced apparatus quantity, has improved the positioning accuracy and the measurement accuracy of cutting the bone among the operation process, has reduced the operation risk, has shortened the effect of operation time.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a multifunctional femoral osteotomy positioner.
Background
Knee joint replacement is one of the commonly used operation modes for clinically treating diseases such as knee osteoarthritis, traumatic arthritis, rheumatoid disease and the like at present, and has good postoperative effect. In the total knee replacement surgery, the multi-plane and multi-angle osteotomy is needed to be carried out on the femur side so as to install the femur side prosthesis, firstly, the distal end of the knee femur needs to be subjected to osteotomy, then, the parameter of the femur condyle is measured by taking the osteotomy surface as a reference surface, and the position of the osteotomy module is determined in the next step. The measurement of the femoral condyle parameters is mainly to determine the spacing between the femoral posterior condyle and the femoral anterior curved surface so as to select the femoral prosthesis with the proper specification. The determination of the position of the osteotomy module is generally based on the femoral posterior condyle to determine the internal and external rotation angle and the anterior-posterior position of the osteotomy module, or based on the femoral anterior curvature.
Among the prior art, thighbone cuts bone module and caliber and is solitary operating device, and in the use, operating procedure is complicated, and the apparatus cost is higher, and the change of whole apparatus can exert an influence to cutting bone positioning accuracy in the operation, has increased the operating procedure of operation simultaneously, prolongs operation time, has also increased the risk of operation, causes very big limitation for operation and operation precision.
In view of the above-mentioned related technologies, the inventor believes that, during the operation, two independent operation machines are replaced, which affects the positioning accuracy and the measurement accuracy of the osteotomy, and increases the risk of the operation.
Disclosure of Invention
In order to reduce the positioning accuracy and the measurement accuracy that improve the operation in-process and cut the bone, this application provides a multi-functional thighbone cuts bone locator.
The application provides a multi-functional thighbone cuts bone locator adopts following technical scheme:
the utility model provides a multi-functional thighbone cuts bone locator, includes cuts bone coupling mechanism, positioning mechanism and the firm complementary unit who measures the thighbone size that cuts the position of confirming thighbone, cut bone coupling mechanism be located between positioning mechanism and the complementary unit, positioning mechanism is located the top of thighbone, cut bone coupling mechanism be located the end department of thighbone, cut bone coupling mechanism respectively with positioning mechanism and complementary unit swing joint.
Through adopting above-mentioned technical scheme, the position of cutting the bone can be fixed a position to the setting of cutting coupling mechanism, positioning mechanism, and the setting of complementary unit not only can be to firm locator in the operation process, can also measure the height of thighbone, selects suitable knee joint thighbone false body, has retrencied the constitution of apparatus, has increased the rate of utilization of apparatus, has improved the positioning accuracy and the measurement accuracy of cutting the bone in the operation process, has reduced the operation risk, has shortened the operation time.
Optionally, the positioning mechanism is a distal osteotomy plate.
Through adopting above-mentioned technical scheme, the distal end cuts the bone plate and is located the top of thighbone, confirms the position of cutting the bone of side on the thighbone, guarantees the precision of cutting the bone of thighbone top.
Optionally, the distal bone resection plate comprises an L-shaped connection plate and a positioning plate for determining the bone resection position of the upper side of the femur, the connection plate is connected with the positioning plate, the connection plate is movably connected with the bone resection connection mechanism, two first bone resection through grooves are longitudinally formed in the positioning plate, and the two first bone resection through grooves are arranged in a back-to-back manner.
Through adopting above-mentioned technical scheme, the connecting plate with cut bone coupling mechanism swing joint, increased the distal end and cut the bone lamella and cut the stability between the bone coupling mechanism, the locating plate can be through two logical grooves of cutting the bone confirm the position that the side need cut the bone on the thighbone, has increased the precision that the side cut the bone on the thighbone.
Optionally, the positioning mechanism is a positioning measurement mechanism.
By adopting the technical scheme, the positioning and measuring mechanism is firstly positioned, and then the height of the femur is measured, so that a more suitable knee joint femoral prosthesis is selected.
Optionally, the positioning and measuring mechanism includes a depth measuring plate contacting with a vertex of the femur and a depth measuring connector movably connected to the depth measuring plate, and the depth measuring connector is located at a top end of the connecting mechanism.
Through adopting above-mentioned technical scheme, the summit of lateral surface contacts on sounding board and the thighbone, confirms the summit position of thighbone, and sounding board and sounding connecting piece swing joint, sounding board can the shift position look for the summit of thighbone, have increased thighbone measuring precision.
Optionally, the positioning and measuring mechanism further comprises a connecting assembly, a rectangular sliding hole is formed in the depth measuring plate, and the top of the connecting assembly is clamped in the sliding hole and enables the depth measuring plate to slide along the connecting assembly;
the depth measurement connecting piece is provided with a convex sliding groove, and the bottom of the connecting assembly is clamped in the convex sliding groove to enable the connecting assembly to be connected with the depth measurement connecting piece in a sliding mode.
Through adopting above-mentioned technical scheme, sounding board and connecting piece sliding connection to the top of connecting plate is the fulcrum, moves according to thighbone length direction, and the connecting piece can be followed sounding connecting plate length direction and moved, makes the sounding board have a plurality of degrees of freedom, makes things convenient for the sounding board to look for the position on summit at thighbone, has increased thighbone measuring precision.
Optionally, the auxiliary mechanism includes a bottom plate located below the femur and a connecting fixing frame movably connected with the bottom plate, scales are arranged on the side face of the connecting fixing frame, and one end of the connecting fixing frame is movably connected with the connecting mechanism.
Through adopting above-mentioned technical scheme, the bottom plate is located the below of thighbone, can upwards lift up the thighbone, makes things convenient for the operation, when measuring the size of thighbone, uses through the cooperation of location measurement mechanism, bottom plate and connection mount, can accurately measure the height of thighbone, provides convenience for follow-up operation.
Optionally, the osteotomy connecting mechanism comprises an upper connecting portion and a lower connecting portion located below the upper connecting portion, the upper connecting portion is movably connected with the positioning mechanism, and the lower connecting portion is movably connected with the connecting fixing frame.
Through adopting above-mentioned technical scheme, cut bone coupling mechanism and be located thighbone terminal surface department, confirm the position that the thighbone terminal surface need cut the bone, conveniently cut the bone operation, increased the precision that the thighbone side cut the bone.
Optionally, two second osteotomy through grooves located on the same plane are transversely formed in the upper connecting part and close to the lower connecting part, and the two second osteotomy through grooves are arranged in a back-to-back manner;
the middle position of the lower connecting part is provided with a placing groove with a downward opening, the lower connecting part is respectively provided with two third osteotomy through grooves which incline upwards and two fourth osteotomy through grooves which incline downwards, the position of the lower connecting part close to the bottom plate is transversely provided with two fifth osteotomy through grooves which are positioned on the same plane, and the two fifth osteotomy through grooves are arranged in a back-to-back manner.
Through adopting above-mentioned technical scheme, set up the second and cut bone logical groove, the third cuts bone logical groove, the fourth cuts bone logical groove and the fifth cuts bone logical groove, when the operation in-process needs to cut the bone, can directly cut the bone through the position in these grooves, improve the thighbone and cut the precision of bone location, the operation of being convenient for has shortened the operation time.
Optionally, the positioner further comprises a medullary needle rod, an angle block is sleeved on the medullary needle rod, the angle block is located in the placing groove, so that the medullary needle rod penetrates through the placing groove and is fixedly connected with the femur, and the angle block is movably connected with the osteotomy connecting mechanism.
Through adopting above-mentioned technical scheme, angle piece and cut bone coupling mechanism sliding connection, the broach pole can be squeezed into in the femoral medullary cavity to fixed angle piece, cut bone coupling mechanism and reciprocate along the angle piece, so that increase the degree of freedom of sounding board.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the osteotomy positioning and femur measuring device comprehensively uses osteotomy positioning and femur measurement, adopts the osteotomy connecting mechanism and the auxiliary mechanism as references, simplifies the composition of instruments, increases the utilization rate of the instruments, reduces the quantity of the instruments, improves the positioning precision and the measuring precision of osteotomy in the operation process, reduces operation risks and shortens operation time;
2. the positioning and measuring mechanism can be used for positioning firstly and measuring the height of the femur so as to select a more suitable knee joint femoral prosthesis;
3. the sounding board, sounding connecting piece and the connecting piece among the positioning and measuring mechanism of this application swing joint each other has a plurality of degrees of freedom for the sounding board, makes things convenient for the sounding board to look for the position on summit at thighbone, has increased thighbone measuring precision.
Drawings
FIG. 1 is a schematic representation of the connection of the osteotomy connection mechanism, distal osteotomy plate and auxiliary mechanism of the present application.
FIG. 2 is a state view of the osteotomy attachment mechanism, distal osteotomy plate, assist mechanism and femur of the present application.
Fig. 3 is a schematic structural view of the distal end osteotomy plate of the present application.
Figure 4 is a schematic structural view of the osteotomy attachment mechanism of the present application.
Figure 5 is an exploded view of the osteotomy attachment mechanism and distal osteotomy plate of the present application.
FIG. 6 is a schematic view of the connection of the osteotomy connection mechanism, the positioning measurement mechanism and the assisting mechanism of the present application.
Figure 7 is an exploded view of the osteotomy attachment mechanism and positioning measurement mechanism of the present application.
Description of reference numerals: 1. femur, 2, osteotomy connection mechanism, 21, upper connection portion, 211, second osteotomy through slot, 212, sliding slot, 22, lower connection portion, 221, placement slot, 222, third osteotomy through slot, 223, fourth osteotomy through slot, 224, fifth osteotomy through slot, 225, lightening slot, 3, distal osteotomy plate, 31, connection plate, 311, long plate, 312, short plate, 313, first slider, 32, positioning plate, 321, first osteotomy through slot, 4, positioning measurement mechanism, 41, depth plate, 411, sliding hole, 42, depth measurement connector, 421, convex sliding slot, 43, connection assembly, 431, limit head, 432, connection rod, 433, connection portion, 44, second slider, 6, auxiliary mechanism, 61, bottom plate, 62, connection mount, 63, U-shaped fork, 7, medulla rod, 8, angle block, 9, handle.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses multi-functional thighbone cuts bone locator.
Referring to fig. 1 and 2, the multifunctional femur osteotomy positioner comprises an osteotomy connecting mechanism 2 for determining an osteotomy position of a femur 1, a positioning mechanism and an auxiliary mechanism 6 for stabilizing and measuring a size of the femur, wherein the osteotomy connecting mechanism 2 is positioned between the positioning mechanism and the auxiliary mechanism 6, the positioning mechanism is positioned above the femur 1, the osteotomy connecting mechanism 2 is positioned at the end of the femur 1, and the osteotomy connecting mechanism 2 is movably connected with the positioning mechanism and the auxiliary mechanism 6 respectively.
Referring to fig. 3, the positioning mechanism is a distal bone-cutting plate 3, the distal bone-cutting plate 3 includes an L-shaped connecting plate 31 and a positioning plate 32, the connecting plate 31 is fixedly connected to the positioning plate 32, the connecting plate 31 includes a long plate 311 and a short plate 312, two first sliding blocks 313 are disposed on the bottom surface of the long plate 312, each first sliding block 313 includes a first connecting piece and a first protruding block, one end of each first connecting piece is fixedly connected to the bottom surface of the long plate 312, the other end of each first connecting piece is fixedly connected to the first protruding block, the first connecting piece and the first protruding block are both fixedly connected to the short plate 312 towards the side surface of the short plate 312, two first bone-cutting through grooves 321 with outward openings are longitudinally disposed on the positioning plate 32, and the two first bone-cutting through grooves 321 are disposed in a back-to-back manner.
The distal bone plate 3 is provided with a plurality of mounting holes, and the distal bone plate 3 is fixedly connected with the femur 1 by inserting pins or screws into the holes.
Referring to fig. 4 and 5, the osteotomy connecting mechanism 2 includes an upper connecting portion 21 and a lower connecting portion 22 located below the upper connecting portion 21, two second osteotomy through grooves 211 with outward openings are transversely formed in the upper connecting portion 21 at a position close to the lower connecting portion 22, the two second osteotomy through grooves 211 are arranged in a back direction, two sliding grooves 212 matched with the first sliding blocks 313 are formed in the side surface of the upper connecting portion 21 close to the distal osteotomy plate 3, the cross section of each sliding groove 212 is in a convex shape, and the two first sliding blocks 313 are respectively connected with the two sliding grooves 212 in a clamping manner to enable the distal osteotomy plate 3 to be detachably connected with the osteotomy connecting mechanism 2.
The middle position of the lower connecting part 22 is provided with a placing groove 221 with a downward opening, the lower connecting part 22 is respectively provided with two third osteotomy through grooves 222 which incline upwards and open outwards and two fourth osteotomy through grooves 223 which incline downwards and open outwards, the lower connecting part 22 is transversely provided with two fifth osteotomy through grooves 224 with outward openings at the position close to the bottom plate 61, and the two third osteotomy through grooves 222, the two fourth osteotomy through grooves 223 and the two fifth osteotomy through grooves 224 are all arranged in a back-to-back mode.
The two first osteotomy through slots 321 are symmetrically disposed, and then the two second osteotomy through slots 221, the two third osteotomy through slots 222, the two fourth osteotomy through slots 223, and the two fifth osteotomy through slots 224 are symmetrically disposed with the placement slot 221 as a central axis.
Two weight-reducing grooves 225 which are arranged back to back are formed in the lower connecting portion 22, the weight-reducing grooves 225 can reduce the overall weight of the positioner, and the comfort of a patient during use is improved.
The lower connecting portion 22 is provided with a plurality of mounting holes, and the osteotomy connecting mechanism 2 is fixedly connected with the femur 1 by inserting pins or screws into the holes.
Referring to fig. 1 and 2, the auxiliary mechanism 6 includes a bottom plate 61 located below the femur 1 and a connection fixing frame 62 located on one side of the end of the femur 1, the bottom plate 61 is provided with a slot, and one end of the connection fixing frame 62 is inserted into the slot to detachably connect the connection fixing frame 62 with the bottom plate 61.
The bottom plate 61 is provided with a handle 9 for operating the positioner conveniently, the bottom plate 61 is U-shaped, and two side arms of the bottom plate 61 are in contact with the femur 1.
The other end of the connecting fixing frame 62 is provided with a U-shaped fork 63, two side arms of the U-shaped fork 63 are respectively provided with a through hole, the lower connecting part 22 is provided with two connecting holes corresponding to the through holes, and the connecting fixing frame 62 and the osteotomy connecting mechanism 2 are detachably connected by a pin shaft penetrating through the through holes and the connecting holes.
The locator also comprises a marrow needle rod 7, an angle block 8 is sleeved on the marrow needle rod 7, and the angle block 8 is positioned in the placing groove 221 so that the marrow needle rod 7 penetrates through the placing groove 221 and the femur 1.
The two side edges of the angle block 8 are respectively provided with a sliding block, the two oppositely arranged side walls of the placing groove 221 are respectively provided with a slide way, and the two sliding blocks are connected in the two slide ways in a clamping manner and move up and down along the two slide ways, so that the angle block 8 is connected with the lower connecting part 22 in a sliding manner.
When the size of the femur is large and the osteotomy connecting mechanism 2 needs to be moved, the osteotomy connecting mechanism 2 is pulled upwards or downwards, and the medulla needle rod 7 is fixed and the angle block 8 is also fixed, so that the osteotomy connecting mechanism 2 can move up and down by taking the angle block 8 as a fulcrum, and the positioner is suitable for femurs with different sizes.
When the positioning operation needs to be carried out on the femur 1, the implementation principle of the multifunctional femur osteotomy positioner is as follows: the positioner is placed on one side of the end of the femur 1, the bottom plate 61 is placed below the femur 1, the osteotomy connecting mechanism 2 is positioned on the side of the end of the femur, the distal osteotomy plate 3 is positioned above the femur 1, the handle is pulled upwards, the bottom plate 61 lifts the femur 1, the femur 1 is convenient to operate, at the moment, the knife is fed into the groove according to the positions of the two first osteotomy through grooves 321, the two second osteotomy through grooves 221, the two third osteotomy through grooves 222, the two fourth osteotomy through grooves 223 and the two fifth osteotomy through grooves 224, and the osteotomy is started. The through groove is arranged, so that the position of the osteotomy can be accurately determined, the precision of the operation is improved, meanwhile, in the process of lifting the femur 1 and performing the osteotomy, the connecting fixing frame 62 reduces the displacement of the distal osteotomy plate 3 and the osteotomy connecting mechanism 2, and the stability of the osteotomy is improved.
Referring to fig. 6 and 7, when the size of the femur needs to be measured after the osteotomy is completed, the positioning mechanism is the positioning and measuring mechanism 4, and the positioning and measuring mechanism 4 measures the distance from the highest vertex of the upper side surface to the highest vertex of the lower side surface of the femur 1, that is, the height of the femur 1.
The positioning and measuring mechanism 4 comprises a depth measuring plate 41 which is contacted with the vertex of the femur 1, a depth measuring connecting piece 42 which is movably connected with the depth measuring plate 41 and a connecting assembly 43, wherein a rectangular sliding hole 411 is arranged on the depth measuring plate 41, the front end of the depth measuring plate 41 is in a hook shape, the depth measuring connecting piece 42 is arranged at the top end of the osteotomy connecting mechanism 2 and is movably connected with the osteotomy connecting mechanism 2, and the connecting assembly 43 is respectively and movably connected with the depth measuring plate 41 and the depth measuring connecting piece 42.
The connecting assembly 43 comprises a cylindrical limiting head 431, a connecting rod 432 and an I-shaped connecting part 433, one end part, close to the limiting head 431, of the connecting rod 432 is a threaded rod, a threaded hole matched with the threaded rod is formed in the bottom surface of the limiting head 431, one end of the connecting rod 432 is in threaded connection with the limiting head 431, the other end of the connecting rod 432 is fixedly connected with the connecting part 433, the diameter of the connecting rod 432 is smaller than that of the limiting head 431, the connecting rod 432 is used as an axis, and a space is formed between the limiting head 431 and the connecting part 433.
The depth measurement connecting piece 42 is provided with a convex sliding groove 421, the connecting rod 432 penetrates through the sliding hole 411, the limiting head 431 is located above the depth measurement plate 41, a space between the limiting head 431 and the connecting part 433 is clamped on the groove edge of the depth measurement plate 41, the connecting part 433 is clamped in the convex sliding groove 421, and the depth measurement connecting piece 42 is in sliding connection with the depth measurement plate 41 through the connecting component 43.
Two second sliders 44 are arranged at the bottom of the depth measuring connecting piece 42, each second slider 44 comprises a second connecting piece and a second convex block, one end of each second connecting piece is fixedly connected to the bottom surface of the depth measuring connecting piece 42, the other end of each second connecting piece is fixedly connected with the corresponding second convex block, the second connecting piece and the corresponding second convex block are fixedly connected with the corresponding short plate 312 towards one side surface of the corresponding short plate 312, and the two second sliders 44 are respectively connected with the two sliding grooves 212 in a clamped mode to enable the depth measuring connecting pieces 42 to be detachably connected with the osteotomy connecting mechanism 2.
The side of the connection fixing frame 62 is provided with scales.
When a proper knee joint femoral prosthesis needs to be selected, the height of the femur 1 needs to be measured, and the implementation principle of the multifunctional femoral osteotomy positioner is as follows: after the osteotomy of the femur 1 is completed, the distal osteotomy plate 3 is removed from the osteotomy connecting mechanism 2, the depth measuring connecting piece 42 is installed, and the two second sliders 44 are clamped with the two sliding grooves 212 of the upper connecting part 21, so that the positioning and measuring mechanism 4 is connected with the osteotomy connecting mechanism 2;
firstly, the depth measurement plate 41 searches for a vertex on the upper side surface of the femur 1, the depth measurement plate 41 can move along the length direction of the femur 1 by taking the limiting head 431 and the connecting rod 432 as pivots, and the connecting component 43 can slide in the convex sliding groove 421 through the connecting component 433, so that the depth measurement plate 41 is driven to move along the length direction of the depth measurement connecting component 42, the degrees of freedom of the depth measurement plate 41 in multiple directions are increased, and the depth measurement plate 41 can conveniently search for the vertex on the upper side surface of the femur 1;
when the depth measuring plate 41 is tangent to the highest vertex of the upper side surface of the femur 1, the scale displayed when the connecting fixing frame 62 is exposed out of the slot of the bottom plate 61 at the moment is checked, namely the height of the femur 1, and after the measurement is completed, a proper knee joint femoral prosthesis can be selected to be installed. The whole instrument does not need to be replaced in the measuring process, the osteotomy connecting mechanism 2 and the auxiliary mechanism 6 are used as the reference to replace the positioning measuring mechanism 4 and the distal osteotomy plate 3, the utilization rate of the instrument is increased to the maximum extent, and the measuring accuracy in the operation process is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The utility model provides a multi-functional thighbone cuts bone locator which characterized in that: the femur measuring instrument comprises a bone cutting connecting mechanism (2) for determining the bone cutting position of a femur (1), a positioning mechanism and an auxiliary mechanism (6) for stabilizing and measuring the size of the femur, wherein the bone cutting connecting mechanism (2) is positioned between the positioning mechanism and the auxiliary mechanism (6), the positioning mechanism is positioned above the femur (1), the bone cutting connecting mechanism (2) is positioned at the end of the femur (1), and the bone cutting connecting mechanism (2) is movably connected with the positioning mechanism and the auxiliary mechanism (6) respectively; the positioning mechanism is a positioning measuring mechanism (4), the positioning measuring mechanism (4) comprises a depth measuring plate (41) contacted with the top point of the femur (1) and a depth measuring connecting piece (42) movably connected with the depth measuring plate (41), and the depth measuring connecting piece (42) is positioned at the top end of the osteotomy connecting mechanism (2);
the positioning and measuring mechanism (4) further comprises a connecting assembly (43), a rectangular sliding hole (411) is formed in the depth measuring plate (41), the top of the connecting assembly (43) is clamped in the sliding hole (411) and the depth measuring plate (41) slides along the connecting assembly (43);
a convex sliding groove (421) is formed in the depth measuring connecting piece (42), and the bottom of the connecting assembly (43) is clamped in the convex sliding groove (421) to enable the connecting assembly (43) to be connected with the depth measuring connecting piece (42) in a sliding mode.
2. The multi-functional femoral resection locator of claim 1, wherein: the auxiliary mechanism (6) comprises a bottom plate (61) positioned below the femur (1) and a connecting fixing frame (62) movably connected with the bottom plate (61), scales are arranged on the side surface of the connecting fixing frame (62), and one end of the connecting fixing frame (62) is movably connected with the osteotomy connecting mechanism (2).
3. The multi-functional femoral resection locator of claim 1, wherein: cut bone coupling mechanism (2) include connecting portion (21) and lower connecting portion (22) that are located connecting portion (21) below, last connecting portion (21) and positioning mechanism swing joint, lower connecting portion (22) with be connected mount (62) swing joint.
4. The multi-functional femoral resection locator of claim 3, wherein: two second osteotomy through grooves (211) which are positioned on the same plane are transversely formed in the upper connecting part (21) and are close to the lower connecting part (22), and the two second osteotomy through grooves (211) are arranged in a back-to-back manner;
the middle position of the lower connecting part (22) is provided with a placing groove (221) with a downward opening, the lower connecting part (22) is respectively provided with two third osteotomy through grooves (222) which are inclined upwards and two fourth osteotomy through grooves (223) which are inclined downwards, the position of the lower connecting part (22) close to the bottom plate (61) is transversely provided with two fifth osteotomy through grooves (224) which are positioned on the same plane, and the two fifth osteotomy through grooves (224) are arranged in a back-to-back mode.
5. The multi-functional femoral resection locator of claim 1, wherein: the locator also comprises a marrow needle rod (7), an angle block (8) is sleeved on the marrow needle rod (7), the angle block (8) is positioned in the placing groove (221) to enable the marrow needle rod (7) to penetrate through the placing groove (221) and be fixedly connected with the femur (1), and the angle block (8) is movably connected with the osteotomy connecting mechanism (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011045373.2A CN112155653B (en) | 2020-09-28 | 2020-09-28 | Multifunctional femur osteotomy positioner |
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| CN202011045373.2A CN112155653B (en) | 2020-09-28 | 2020-09-28 | Multifunctional femur osteotomy positioner |
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| CN112155653B true CN112155653B (en) | 2021-09-14 |
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|---|---|---|---|---|
| CN113057712B (en) * | 2021-02-25 | 2022-03-11 | 北京市春立正达医疗器械股份有限公司 | Tibia osteotomy guider |
| CN114848083A (en) * | 2022-05-10 | 2022-08-05 | 北京市春立正达医疗器械股份有限公司 | Osteotomy guider |
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| EP1669033B1 (en) * | 2004-12-08 | 2009-02-18 | Perception Raisonnement Action En Medecine | Device for positioning a bone cutting guide |
| US10292713B2 (en) * | 2015-01-28 | 2019-05-21 | First Ray, LLC | Freeform tri-planar osteotomy guide and method |
| CN107049415B (en) * | 2017-01-14 | 2023-10-03 | 中山大学附属第一医院 | Femur distal osteotomy positioning guide device and positioning method thereof |
| CN106974700A (en) * | 2017-04-24 | 2017-07-25 | 北京大学第三医院 | A kind of proximal tibia osteotomy instrument kit |
| CN209236393U (en) * | 2018-09-03 | 2019-08-13 | 苏州微创关节医疗科技有限公司 | Femur measurement device |
| CN111407471A (en) * | 2020-03-26 | 2020-07-14 | 北京力达康科技有限公司 | Thighbone measuring device |
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Inventor after: Ding Zhenxun Inventor after: Xie Fengbao Inventor after: Shi Chunbao Inventor after: Wang Shuai Inventor after: Hao Mengjuan Inventor before: Xie Fengbao Inventor before: Shi Chunbao Inventor before: Wang Shuai Inventor before: Hao Mengjuan |