CN220001939U - Femur measuring device for knee osteotomy - Google Patents
Femur measuring device for knee osteotomy Download PDFInfo
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- CN220001939U CN220001939U CN202320698029.6U CN202320698029U CN220001939U CN 220001939 U CN220001939 U CN 220001939U CN 202320698029 U CN202320698029 U CN 202320698029U CN 220001939 U CN220001939 U CN 220001939U
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- reference positioning
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- femur
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 32
- 210000003127 knee Anatomy 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 238000005259 measurement Methods 0.000 claims abstract description 33
- 238000001356 surgical procedure Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 10
- 210000000629 knee joint Anatomy 0.000 claims description 7
- 210000000988 bone and bone Anatomy 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007943 implant Substances 0.000 abstract description 3
- 241000208340 Araliaceae Species 0.000 description 4
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 4
- 235000003140 Panax quinquefolius Nutrition 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 235000008434 ginseng Nutrition 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000001694 thigh bone Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000013150 knee replacement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to the technical field of artificial joints, in particular to a femur measuring device for knee osteotomy. The device comprises an internal and external rotation adjusting mechanism and a back-reference positioning mechanism matched with the internal and external rotation adjusting mechanism; the upper part of the back reference positioning mechanism is matched with a front reference positioning mechanism, and the upper part of the front reference positioning mechanism is matched with a femur measurement adjusting mechanism. The femur measuring device for knee osteotomy is applied to femoral condyle positioning in total knee surgery by matching with the internal rotation adjusting mechanism, the back reference positioning mechanism, the front reference positioning mechanism, the femur measuring adjusting mechanism and the like, and is matched with a specific osteotomy plate to complete multi-plane osteotomy of the femoral condyle, so that a doctor can provide a convenient surgical instrument, the surgical efficiency is improved, and meanwhile, the femur size can be measured well, so that a proper implant prosthesis is selected, the actual requirement is met to the maximum extent, the normal state of a patient is reduced, and good news is brought to the patient.
Description
Technical Field
The utility model relates to the technical field of artificial joints, in particular to a femur measuring device for knee osteotomy.
Background
The knee joint is one of the largest joints of the human body with the most complex structure, and is the most main joint in the motion process of the human body. The knee joint replacement operation can reestablish normal functions of the knee joint, reduce the pain and inconvenience of patients, achieve the best treatment effect by implementing the knee joint prosthesis system replacement operation, and recover the action ability of the patients to the maximum extent.
At present, in the total knee replacement operation, the femoral condyle needs to carry out multi-plane osteotomy, generally carries out distal end osteotomy first, then uses the distal end osteotomy face as the benchmark, adjusts the internal and external rotation angle of osteotomy plane, and the front and back reference location is selected, measures the interval of the back condyle face of femoral condyle and the front side curved surface of femur, and then selects the osteotomy board of corresponding model, and in the prior art, the thighbone measurement locator mainly includes back condyle locator, angle board and depth finder, and this kind of thighbone measurement locator needs manual equipment in the use, increases operation time, has also increased the probability of misoperation simultaneously, causes the condition of osteotomy mistake easily. And the equipment for simultaneously measuring the external rotation of the femur and the condyle of the femur is immature, and most of equipment adopts a screwdriver or a knob to adjust the up-and-down sliding of a pointer, so that the adjusting process is more complex or the adjusting structure is more complex, and time and labor are wasted.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a femur measuring device for knee osteotomy.
The technical scheme adopted by the utility model is as follows: the femur measuring device for knee osteotomy comprises an internal rotation adjusting mechanism and a back-reference positioning mechanism matched with the internal rotation adjusting mechanism; the upper part of the back reference positioning mechanism is matched with a front reference positioning mechanism, and the upper part of the front reference positioning mechanism is matched with a femur measurement adjusting mechanism.
In order to better realize the utility model, the internal and external rotation adjusting mechanism comprises a supporting base, wherein a mounting column extending towards the rear end is arranged on the supporting base, and a rotary roller is arranged on the mounting column; an angle scale mark and an internal and external rotation fixing hole are arranged on the front surface of the supporting base, and the internal and external rotation fixing hole is matched with a corresponding locking screw; the back reference positioning mechanism is provided with an inner and outer rotation sliding groove matched with the rotating roller.
In order to better realize the utility model, a back condyle positioning plate extending to the back end is arranged on the supporting base.
In order to better realize the utility model, the back-reference positioning mechanism comprises a mounting seat, and the internal and external rotation sliding groove is arranged at the lower part of the mounting seat; the mounting seat is provided with rear reference positioning holes positioned at two sides of the inner and outer rotary sliding grooves; the mounting seat is also provided with a handle connecting hole positioned above the inner and outer rotary sliding grooves.
In order to better realize the utility model, the handle connecting hole is a quick clamping connecting hole.
In order to better realize the utility model, the front reference positioning mechanism comprises a cylindrical body, and front reference positioning holes are arranged on two sides of the cylindrical body.
In order to better realize the utility model, the femur measurement adjusting mechanism comprises a measuring rod penetrating through the cylindrical body from the upper part, wherein the upper end of the measuring rod is provided with an end cap, the lower end of the measuring rod is provided with a measuring end, and the mounting seat is provided with a through hole matched with the measuring end.
In order to better realize the utility model, the upper part of the cylindrical body is provided with an annular groove, and a depth measuring mechanism is matched on the annular groove through a U-shaped buckle.
In order to better realize the utility model, the sounding mechanism comprises a rotating seat arranged at the outer side of the U-shaped buckle, and an arc measuring probe, a horizontal measuring probe and a locking screw rod are arranged on the rotating seat.
The beneficial effects of the utility model are as follows: the femur measuring device for knee osteotomy is applied to femoral condyle positioning in total knee surgery by matching with the internal rotation adjusting mechanism, the back reference positioning mechanism, the front reference positioning mechanism, the femur measuring adjusting mechanism and the like, and is matched with a specific osteotomy plate to complete multi-plane osteotomy of the femoral condyle, so that a doctor can provide a convenient surgical instrument, the surgical efficiency is improved, and meanwhile, the femur size can be measured well, so that a proper implant prosthesis is selected, the actual requirement is met to the maximum extent, the normal state of a patient is reduced, and good news is brought to the patient. The utility model integrates the functions of anterior ginseng, posterior ginseng, internal rotation, external rotation and femoral condyle measurement, can realize the positioning and selection of the femoral condyle osteotomy plate by using one instrument, achieves the effect of simplifying the surgical instrument and the using steps, and can assist a surgeon to perform more accurate and perfect surgical operation by using the instrument. The utility model can realize accurate femur measurement and positioning according to the actual conditions of different patients in the bone cutting operation process, thereby selecting a proper bone cutting guide plate to finish the replacement of the prosthesis, and has the advantages of simplicity, practicality, accuracy and the like.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic view of a femoral measurement device for knee osteotomy in accordance with the present utility model;
FIG. 2 is a schematic view of another embodiment of a femoral measurement device for knee osteotomy of the present utility model;
FIG. 3 is a schematic view of a cylindrical body of a femoral measurement device for knee osteotomy of the present utility model;
FIG. 4 is a schematic view of a mounting block of a femoral measurement device for knee osteotomy of the present utility model;
FIG. 5 is a schematic view of a support base of the femoral measurement device for knee osteotomy of the present utility model;
FIG. 6 is a schematic view of a depth finding mechanism of the femoral measurement device for knee osteotomy of the present utility model;
in the drawing, a 1-supporting base, a 2-mounting seat, a 3-cylindrical body, a 4-measuring rod, a 5-locking screw, a 6-arc measuring probe, a 7-horizontal measuring probe, an 8-measuring end, a 9-front reference positioning hole, a 10-mounting column, an 11-internal and external rotation fixing hole, a 12-internal and external rotation sliding groove, a 13-rear reference positioning hole, a 14-rotating roller, a 15-rear condyle positioning plate, a 16-handle connecting hole and a 17-annular groove.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
Examples:
as shown in fig. 1 to 6, the femur measuring device for knee osteotomy of the present utility model includes an internal and external rotation adjusting mechanism and a posterior reference positioning mechanism cooperating with the internal and external rotation adjusting mechanism; the upper part of the back reference positioning mechanism is matched with a front reference positioning mechanism, and the upper part of the front reference positioning mechanism is matched with a femur measurement adjusting mechanism. The femur measuring device for knee osteotomy is applied to femoral condyle positioning in total knee surgery by matching with the internal rotation adjusting mechanism, the back reference positioning mechanism, the front reference positioning mechanism, the femur measuring adjusting mechanism and the like, and is matched with a specific osteotomy plate to complete multi-plane osteotomy of the femoral condyle, so that a doctor can provide a convenient surgical instrument, the surgical efficiency is improved, and meanwhile, the femur size can be measured well, so that a proper implant prosthesis is selected, the actual requirement is met to the maximum extent, the normal state of a patient is reduced, and good news is brought to the patient. The utility model integrates the functions of anterior ginseng, posterior ginseng, internal rotation, external rotation and femoral condyle measurement, can realize the positioning and selection of the femoral condyle osteotomy plate by using one instrument, achieves the effect of simplifying the surgical instrument and the using steps, and can assist a surgeon to perform more accurate and perfect surgical operation by using the instrument. The utility model can realize accurate femur measurement and positioning according to the actual conditions of different patients in the bone cutting operation process, thereby selecting a proper bone cutting guide plate to finish the replacement of the prosthesis, and has the advantages of simplicity, practicality, accuracy and the like.
Preferably, the internal and external rotation adjusting mechanism comprises a supporting base 1, a mounting column 10 extending towards the rear end is arranged on the supporting base 1, and a rotary roller 14 is arranged on the mounting column 10; an angle scale mark and an internal and external rotation fixing hole 11 are arranged on the front surface of the supporting base 1, and the internal and external rotation fixing hole 11 is matched with a corresponding locking screw; the back reference positioning mechanism is provided with an inner and outer rotary sliding groove 12 matched with the rotary roller 14. When the angle is required to be adjusted, the rotating roller 14 slides in the inner and outer rotary sliding grooves 12 to adjust the angle, after the adjustment is completed, the locking screw is screwed, the locking screw is tightly abutted against the mounting seat 2 to realize locking, when the adjustment is required again, the locking screw is loosened, the operation is performed, the adjustment range is generally set to be 0-7 degrees, and corresponding angle scale marks and left and right marks 'L' and 'R' are arranged on the support base 1. The L and R marks can be used for distinguishing the osteotomies of the left knee joint and the right knee joint, can effectively reduce the operation risk and smoothly finish the femur osteotomies.
Preferably, the support base 1 is provided with a posterior condylar locating plate 15 extending towards the posterior end, so that the posterior condylar locating can be facilitated, and the mechanical stability of the support base 1 is better.
Preferably, the back-reference positioning mechanism comprises a mounting seat 2, and the internal and external rotation sliding groove 12 is arranged at the lower part of the mounting seat 2; the mounting seat 2 is provided with rear reference positioning holes 13 positioned at two sides of the inner and outer rotary sliding grooves 12; a handle connection hole 16 is also provided in the mount 2 above the inside-outside rotation slide groove 12. Preferably, the handle connecting hole 16 is a quick clamping connecting hole, so that the handle can be conveniently and quickly connected, the time is saved, and the efficiency is improved.
Preferably, the front reference positioning mechanism comprises a cylindrical body 3, front reference positioning holes 9 are formed in two sides of the cylindrical body 3, a doctor can perform front reference positioning, and meanwhile, the front reference positioning mechanism is provided with femur measurement scale marks, so that the model of the osteotomy plate is convenient to select. Preferably, the femur measurement adjusting mechanism comprises a measuring rod 4 penetrating through the cylindrical body 3 from the upper part, an end cap is arranged at the upper end of the measuring rod 4, a measuring end 8 is arranged at the lower end, and a through hole matched with the measuring end 8 is arranged on the mounting seat 2. The measuring rod 4 is matched with the anterior reference positioning mechanism, and the size is adjusted by sliding the cylindrical body 3, so that the model of the femur osteotomy plate is selected, and the adjusting range is generally 0-8mm.
Preferably, an annular groove 17 is provided at the upper part of the cylindrical body 3, and a depth measuring mechanism is snap-fitted to the annular groove 17. Further, the sounding mechanism include the roating seat of installing in the U type buckle outside, be provided with arc measurement probe 6, level measurement probe 7 and locking screw 5 on this roating seat, medical staff holds locking screw 5 and lets arc measurement probe 6, level measurement probe 7 carry out horizontal displacement, convenient locking, convenient measurement during operation.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (9)
1. A femur measuring device for knee joint cuts bone surgery, its characterized in that: comprises an internal and external rotation adjusting mechanism and a back reference positioning mechanism matched with the internal and external rotation adjusting mechanism; the upper part of the back reference positioning mechanism is matched with a front reference positioning mechanism, and the upper part of the front reference positioning mechanism is matched with a femur measurement adjusting mechanism.
2. The femoral measurement device for knee osteotomy procedures of claim 1, wherein: the internal and external rotation adjusting mechanism comprises a supporting base (1), wherein a mounting column (10) extending towards the rear end is arranged on the supporting base (1), and a rotating roller (14) is arranged on the mounting column (10); the front surface of the supporting base (1) is provided with angle scale marks and internal and external rotation fixing holes (11), and the internal and external rotation fixing holes (11) are matched with corresponding locking screws; the back reference positioning mechanism is provided with an inner-outer rotation sliding groove (12) matched with the rotary roller (14).
3. The femoral measurement device for knee osteotomy procedures of claim 2, wherein: a back condyle positioning plate (15) extending towards the back end is arranged on the supporting base (1).
4. A femoral measurement device for use in knee osteotomy procedures as in claim 3, wherein: the back-reference positioning mechanism comprises a mounting seat (2), and the inner-outer rotation sliding groove (12) is arranged at the lower part of the mounting seat (2); rear reference positioning holes (13) positioned at two sides of the inner and outer rotary sliding grooves (12) are formed in the mounting seat (2); the mounting seat (2) is also provided with a handle connecting hole (16) positioned above the inner and outer rotary sliding groove (12).
5. The femoral measurement device for knee osteotomy procedures of claim 4, wherein: the handle connecting hole (16) is a quick clamping connecting hole.
6. The femoral measurement device for knee osteotomy procedures of claim 5, wherein: the front reference positioning mechanism comprises a cylindrical body (3), and front reference positioning holes (9) are formed in two sides of the cylindrical body (3).
7. The femoral measurement device for knee osteotomy procedures of claim 6, wherein: the femur measurement adjusting mechanism comprises a measuring rod (4) penetrating through a cylindrical body (3) from the upper part, an end cap is arranged at the upper end of the measuring rod (4), a measuring end (8) is arranged at the lower end of the measuring rod, and a through hole matched with the measuring end (8) is formed in the mounting seat (2).
8. The femoral measurement device for knee osteotomy procedures of claim 7, wherein: an annular groove (17) is arranged at the upper part of the cylindrical body (3), and a sounding mechanism is matched on the annular groove (17) through a U-shaped buckle.
9. The femoral measurement device for knee osteotomy procedures of claim 8, wherein: the depth measuring mechanism comprises a rotating seat arranged on the outer side of the U-shaped buckle, and an arc measuring probe (6), a horizontal measuring probe (7) and a locking screw rod (5) are arranged on the rotating seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698029.6U CN220001939U (en) | 2023-03-31 | 2023-03-31 | Femur measuring device for knee osteotomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698029.6U CN220001939U (en) | 2023-03-31 | 2023-03-31 | Femur measuring device for knee osteotomy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220001939U true CN220001939U (en) | 2023-11-14 |
Family
ID=88687255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320698029.6U Active CN220001939U (en) | 2023-03-31 | 2023-03-31 | Femur measuring device for knee osteotomy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220001939U (en) |
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2023
- 2023-03-31 CN CN202320698029.6U patent/CN220001939U/en active Active
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