CN113995465B - Femur osteotomy device and femur osteotomy guide plate assembly - Google Patents
Femur osteotomy device and femur osteotomy guide plate assembly Download PDFInfo
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- CN113995465B CN113995465B CN202111266515.2A CN202111266515A CN113995465B CN 113995465 B CN113995465 B CN 113995465B CN 202111266515 A CN202111266515 A CN 202111266515A CN 113995465 B CN113995465 B CN 113995465B
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 87
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 61
- 238000005520 cutting process Methods 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims description 14
- 238000002271 resection Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000003484 anatomy Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 8
- 238000010146 3D printing Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/15—Guides therefor
- A61B17/154—Guides therefor for preparing bone for knee prosthesis
- A61B17/155—Cutting femur
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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
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/142—Surgical saws ; Accessories therefor with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention relates to the technical field of medical appliances, and provides a femur osteotomy device and a femur osteotomy guide plate component. The femur osteotomy instrument includes: the bone cutter can be inserted into the bone cutting groove to cut the femur, a plurality of positioning holes are formed in the bone cutter body at intervals in sequence, and the positioning holes are suitable for being matched with screw nails to adjust the bone cutting amount of the femur; when the bone cutting amount needs to be adjusted, the bone cutting amount can be adjusted according to the needs by matching the threaded nails with the corresponding positioning holes. By adopting the femur osteotomy device, the osteotomy quantity can be correspondingly adjusted by arranging the plurality of positioning holes at different positions of the osteotomy device body, so that the osteotomy effect is improved. The invention also provides a femur osteotomy guide plate component, which adopts a femur osteotomy guide plate and femur osteotomy device combination mode, and the femur osteotomy guide plate and the femur osteotomy device combination mode are matched and positioned through screw nails.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a femur osteotomy device and a femur osteotomy guide plate component.
Background
The knee joint replacement osteotomy guide plate is an operation auxiliary tool, and the guide plate is utilized, so that marrow opening is not needed, operation wounds are reduced, tools used in operation are simplified, operation efficiency is improved, meanwhile, learning curves of doctors are shortened, and operation efficiency is ensured. And the guide plate is customized according to the bone individuation of the patient, so that the accuracy of the operation is greatly improved.
Most of the current guide plates are integrally designed and integrally 3D printed by using nylon materials, resin materials or polylactic acid materials. The material for producing the guide plate by using the 3D printing technology needs to meet the biological and mechanical properties and is suitable for a plurality of requirements of a 3D printing process and the like, so that the selection range is small, and various requirements of the guide plate production are difficult to maximally meet; secondly, the existing femur guide plate can only cut one distal end, namely can only cut bones according to the bone cutting amount of the pre-planned design, the traditional Chinese medicine in operation can not cut by adding and subtracting through the guide plate according to specific conditions, and can only cut by adding and subtracting through the corresponding bone cutting machinery, thereby greatly reducing the practicability of the guide plate, namely, the matched guide plate which is integrally designed and integrally 3D printed has at least the following defects:
1) In the operation, doctors can not add and subtract the section through the guide plate according to actual conditions, but can only give up the guide plate to add and subtract the section through the corresponding bone cutting instrument, thereby seriously reducing the practicability of the guide plate.
2) In operation, if a doctor wants to add, subtract and cut the guide plate, the guide plate can be taken down, the positioning hole of the guide plate is matched with the corresponding bone cutting machine for use, but the conventional guide plate is generated by adopting a 3D printing technology, the deviation is unavoidable, in addition, the characteristic of the material self can also generate certain error due to self abrasion during nailing, so that the guidance quality is seriously reduced, and the deviation exists in the position of the nail hole when the conventional instrument is matched, so that the conventional instrument is matched with error.
3) Due to the characteristics of materials, during the swing process of the intraoperative saw blade in the osteotomy groove, whether errors caused by vibration or manual errors are caused, chips in the cutter groove are always generated, even slight deformation is caused, and the intraoperative osteotomy effect is seriously affected.
Disclosure of Invention
The invention provides a femur osteotomy device and a femur osteotomy guide plate component, which are used for solving the defects that in the related art, an osteotomy guide plate cannot be subjected to addition, subtraction and osteotomy, the practicability is low, the matching position in the guide plate installation process is easy to deviate, a certain installation error exists in the guide plate installation process, and the osteotomy effect is seriously affected.
The invention provides a femur osteotomy device, comprising: the bone cutter is inserted into the bone cutting groove to cut the femur, a plurality of positioning holes are formed in the bone cutter body at intervals in sequence, and the positioning holes are suitable for being matched with screw nails to adjust the bone cutting quantity of the femur.
According to the femur osteotome provided by the invention, the plurality of positioning holes are provided with preset intervals along the height direction of the osteotome body.
According to the femur osteotome provided by the invention, the connecting line passing through the circle centers of the positioning holes is triangular.
According to the femur osteotome provided by the invention, one end of the osteotome body, which is far away from the osteotomy groove, forms a table body, and the plurality of positioning holes are arranged on the table body and penetrate through the osteotome body perpendicularly to the horizontal surface of the table body.
According to the femur osteotome provided by the invention, the plurality of positioning holes are symmetrically arranged on the table body along the vertical direction.
According to the femur osteotomy device provided by the invention, one end of the osteotomy device body, which is close to the osteotomy groove, is provided with the first oblique nail hole.
According to the femur osteotome provided by the invention, the first oblique nail holes are symmetrically arranged in two along the vertical direction of the osteotome body.
According to the femur osteotomy device provided by the invention, the osteotomy device body is a metal osteotomy device.
The invention also provides a femur osteotomy guide plate component, which comprises a femur osteotomy guide plate matched with the bone anatomical structure of a patient and the femur osteotomy device, wherein the femur osteotomy guide plate is provided with a matching hole matched with the plurality of positioning holes, and the screw thread nails pass through the matching hole from one of the plurality of positioning holes so as to position the femur osteotomy guide plate and the femur osteotomy device; the femur osteotomy guide plate is provided with a matching groove matched with the osteotomy groove, and the osteotomy cutter can be inserted into the matching groove and the osteotomy groove to osteotomy the femur.
According to the femur osteotome provided by the invention, the plurality of positioning holes are formed in the osteotome body at intervals in sequence, and the positioning holes are matched with the threaded nails for use, so that the osteotome can realize cutting and positioning; when the bone cutting amount needs to be adjusted, the corresponding positioning holes are matched through the threaded nails, and the bone cutting amount can be adjusted according to the needs through the bone cutting grooves by utilizing the bone cutting tool, so that a worker can be assisted to accurately cut bones, and the bone cutting effect is improved. Moreover, the osteotomy body is a metal osteotomy. The metal bone cutter is manufactured by machining, and a plurality of positioning holes are machined on the metal bone cutter, so that the metal bone cutter has a guiding function relative to the positioning holes made of nylon materials; the pendulum saw is inserted into the metal groove to be more beneficial to bone cutting, scraps cannot be generated by the pendulum saw, and the bone cutting guidance is stronger, so that the bone cutting is smoother, and the bone cutting effect is more accurate.
Furthermore, the invention also provides a femur osteotomy guide plate component, which adopts a femur osteotomy guide plate and femur osteotomy device combination mode, the femur osteotomy guide plate and the femur osteotomy device combination mode are matched and positioned through screw nails, a plurality of positioning holes are arranged on the femur osteotomy device at intervals, a doctor can add and subtract the osteotomy according to actual conditions in the operation, more osteotomy modes are satisfied, the doctor is completely separated from the conventional femur proximal osteotomy device, and the value of the guide plate is fully reflected.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a femoral osteotomy device provided by the present invention;
FIG. 2 is a schematic view of the configuration of the femoral osteotomy guide plate and femoral osteotomy device of the present invention in use in combination;
FIG. 3 is an exploded view of the femoral resection guide assembly provided by the present invention;
FIG. 4 is a schematic view of a configuration of a femoral resection guide assembly of the present invention positioned using a first positioning aperture;
FIG. 5 is a schematic view of a femoral resection guide assembly according to the present invention positioned using a second positioning hole;
FIG. 6 is a schematic view of a femoral resection guide assembly according to the present invention positioned using a third positioning hole.
Reference numerals:
1: femur; 2: a femur osteotomy guide plate; 3: a bone cutter body;
4: a third positioning hole; 5: a second positioning hole; 6: a first positioning hole;
7: swing saw; 8: a screw thread nail; 9: a first oblique nail hole;
10: a table body; 11: a first matching hole; 12: a second matching hole;
13: a third mating hole; 14: a second oblique nail hole; 15: osteotomy groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A femoral osteotomy device of the present invention is described below in connection with fig. 1, comprising: the osteotomy device comprises an osteotomy device body 3, wherein the osteotomy device body 3 is provided with an osteotomy groove 15, an osteotomy cutter can be inserted into the osteotomy groove 15 to osteotomy the femur 1, a plurality of positioning holes which are sequentially arranged at intervals are formed in the osteotomy device body 3, and the plurality of positioning holes are suitable for being matched with screw nails 8 to adjust the osteotomy quantity of the femur. Wherein, the osteotomy tool can adopt a pendulum saw 7.
According to the femur osteotome provided by the invention, the osteotome body 3 is provided with the plurality of positioning holes which are sequentially arranged at intervals, and the positioning holes are matched with the threaded nails 8 for use, so that the osteotomy positioning can be increased and reduced; when the bone cutting amount needs to be adjusted, the screw nails 8 pass through corresponding positioning holes in a matched mode, the bone cutting cutter can be used for achieving the bone cutting amount adjustment according to needs through the bone cutting grooves 15, therefore, accurate bone cutting can be assisted by operators, and the bone cutting effect is improved.
In one embodiment of the invention, the plurality of positioning holes have a predetermined interval along the height direction of the osteotomy body 3, which may be set according to the actual surgical situation.
In one embodiment of the present invention, a line passing through the centers of the plurality of positioning holes is a regular or irregular triangle, and a line passing through the centers of the plurality of positioning holes is an isosceles triangle, an equilateral triangle, or other irregular triangle.
In one embodiment of the present invention, a table body 10 is formed at one end of the osteotomy body 3 away from the osteotomy groove 15, and a plurality of positioning holes are provided in the table body 10 and penetrate the osteotomy body 3 perpendicular to the horizontal surface of the table body 10. The table body 10 has a horizontal surface for processing a plurality of positioning holes so as to facilitate processing of the positioning holes thereon, the positioning holes penetrating the osteotomy body 3 perpendicular to the horizontal surface.
In one embodiment of the present invention, a plurality of positioning holes are symmetrically disposed on the table body 10 along the vertical direction.
In one embodiment of the invention, the osteotomy body 3 is provided with a first oblique nail hole 9 at an end thereof adjacent to the osteotomy groove 15. Further, the first oblique nail holes 9 are symmetrically arranged along the vertical direction of the osteotome body 3.
As shown in fig. 2 to 6, the present invention further provides a femoral resection guide assembly, which comprises a femoral resection guide 2 adapted to the anatomical structure of a patient and the femoral resection device of the above embodiment, wherein the femoral resection guide 2 is provided with a matching hole adapted to a plurality of positioning holes, and the screw 8 passes through the matching hole from one of the plurality of positioning holes to position the femoral resection guide 2 and the femoral resection device; the matching groove matched with the osteotomy groove is formed in the femur osteotomy guide plate 2, the osteotomy cutter can be inserted into the matching groove and the osteotomy groove 15 to osteotomy the femur, the femur osteotomy guide plate 2 and the femur osteotomy device are combined and positioned through the threaded nails 8, a plurality of positioning holes are formed in the femur osteotomy device at intervals, a doctor can add and subtract according to actual conditions in the operation to perform osteotomy, more osteotomy modes are met, the doctor is completely separated from the conventional proximal femur osteotomy device, and the value of the guide plate is fully embodied. The present application can generate a femoral osteotomy guide 2 that is adapted to the patient's bone anatomy by means of 3D printing.
The following is a specific description of an example of providing three sets of positioning holes and one set of oblique nail holes on the osteotome body 3.
Specifically, a first positioning hole 6, a second positioning hole 5 and a third positioning hole 4 are formed on the osteotome body 3, the second positioning hole 5 is located above the first positioning hole 6 along the height direction of the osteotome body 3, the third positioning hole 4 is located below the first positioning hole 6 along the height direction of the osteotome body 3, preset intervals of the three positioning holes in the height direction of the osteotome body 3 can be equal, different can be set, and processing is performed according to actual conditions.
Specifically, in the present embodiment, at least three sets of positioning holes, that is, a first positioning hole 6, a second positioning hole 5, and a third positioning hole 4 are formed in the osteotome body 3, wherein the second positioning hole 5 and the third positioning hole 4 are located above and below the first positioning hole 6, respectively. The first positioning hole 6 is used as a zero-scale positioning hole, the second positioning hole 5 is a cutting-off positioning hole, the third positioning hole 4 is a cutting-off positioning hole, a doctor can use the screw 8 to be matched with the positioning holes according to actual conditions, and the cutting-off can be realized as required by arranging the second positioning hole 5 and the third positioning hole 4, so that the bone cutting amount can be adjusted.
Further, the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4 in this embodiment are all circular through holes, through which the screw 8 can pass for positioning.
According to the femur osteotomy device provided by the invention, the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4 are formed in the osteotomy device body 3, the first positioning hole 6 is used as a zero-line positioning hole, the second positioning hole 5 and the third positioning hole 4 are respectively positioned above and below the first positioning hole 6, and the osteotomy device can realize cutting and positioning by being matched with the threaded nails 8; when the bone cutting amount needs to be adjusted, the bone cutting amount can be adjusted according to the needs by the threaded nails 8 penetrating through the corresponding positioning holes in a matched mode. By adopting the femur osteotomy device, the osteotomy quantity can be correspondingly adjusted by arranging the plurality of positioning holes at different positions of the osteotomy device body 3, so that the osteotomy effect is improved.
In one embodiment of the invention, the second positioning hole 5 is arranged at a position 1-3 mm higher than the positioning hole; the setting position of the third positioning hole 4 is 1-3 mm lower than the first positioning hole. Preferably, the second positioning hole 5 is higher than the first positioning hole by 2mm, namely the second positioning hole 5 can be utilized to cut down by 2mm, and the third positioning hole 4 is lower than the first positioning hole by 2mm, namely the third positioning hole 4 can be utilized to cut down by 2mm. It should be understood that, depending on the actual use, the positions of the second positioning hole 5 and the third positioning hole 4 relative to the first positioning hole 6 may be processed according to the requirements, and the present invention is not limited to the above-described relative positional relationship.
In one embodiment of the present invention, the connection line between the center of the first positioning hole 6, the center of the second positioning hole 5 and the center of the third positioning hole 4 is in a regular or irregular triangle. Further, the second positioning hole 5 and the third positioning hole 4 are positioned in the obliquely upward and downward directions of the first positioning hole 6, and the second positioning hole 5 and the third positioning hole 4 are arranged along the height direction of the osteotomy device body 3; the circle center distances among the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4 are equal, so that the arrangement mode can meet the requirements of addition, subtraction and interception on one hand, and on the other hand, the three groups of positioning holes are compact in arrangement and small in occupied area. It can be understood that when the three positioning holes are arranged in a regular triangle, namely, the circle center connecting lines of the three are equilateral or isosceles triangles.
In one embodiment of the present invention, the end of the osteotomy body 3 away from the osteotomy groove 15, i.e., the upper portion of the osteotomy body 3 forms a table body 10, and the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4 are disposed on the table body 10 and penetrate the osteotomy body 3 perpendicular to the horizontal surface of the table body 10. In this embodiment, the stand 10 is designed to protrude outward from the upper portion of the osteotomy body 3, and the stand 10 has a horizontal surface for machining the first positioning hole 6, the second positioning hole 5, and the third positioning hole 4, so that the positioning holes can be machined thereon, and the positioning holes penetrate the osteotomy body 3 perpendicular to the horizontal surface for the threading nails 8 to pass through for positioning.
In one embodiment of the present invention, the first positioning holes 6 are symmetrically arranged along the vertical direction of the table body 10, the second positioning holes 5 are symmetrically arranged along the vertical direction of the table body 10, and the third positioning holes 4 are symmetrically arranged along the vertical direction of the table body 10. In this embodiment, the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4 are two horizontally arranged and are symmetrically arranged along the vertical direction, and the two threaded nails 8 are respectively inserted into the corresponding positioning holes, so that two-point horizontal positioning is realized, and the positioning balance is ensured to be accurate. It should be understood that the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4 may be processed in multiple numbers according to practical application, and the present invention is not limited to the number of positioning holes in each group.
In one embodiment of the present invention, the osteotomy device body 3 is provided with the first oblique nail hole 9 near one end of the osteotomy groove 15, that is, the lower portion of the osteotomy device body 3, and the screw nail 8 is inserted into the first oblique nail hole 9, so that the positioning effect of the osteotomy device can be further increased. Further, the first oblique nail holes 9 are symmetrically arranged along the vertical direction of the osteotome body 3.
In one embodiment of the invention, the osteotomy body 3 is a metal osteotomy. The metal bone cutter is manufactured by machining, and a plurality of positioning holes are machined on the metal bone cutter, so that the metal bone cutter has a guiding function relative to the positioning holes made of nylon materials; the pendulum saw 7 is inserted into the metal groove to be more beneficial to bone cutting, scraps cannot be generated by the pendulum saw 7, the bone cutting guidance quality is stronger, the bone cutting is smoother, the bone cutting effect is more accurate, and the second positioning hole 5 and the third positioning hole 4 processed on the metal bone cutting device have the functions of adding, subtracting and cutting, so that the dependence of traditional adding, subtracting and cutting instruments is eliminated.
As shown in fig. 2 to 6, the present invention further provides a femoral osteotomy guide assembly, which comprises a femoral osteotomy guide 2 and the femoral osteotomy guide of the above embodiment, wherein a first matching hole 11, a second matching hole 12 and a third matching hole 13 are formed on the femoral osteotomy guide 2, the first matching hole 11 is arranged corresponding to the first positioning hole 6, the second matching hole 12 is arranged corresponding to the second positioning hole 5, the third matching hole 13 is arranged corresponding to the third positioning hole 4, and the screw 8 passes through one of the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4 and passes through the corresponding first matching hole 11, the second matching hole 12 or the third matching hole 13, so that the femoral osteotomy guide 2 and the femoral osteotomy guide are positioned.
Specifically, the outer contours and the setting positions of the first matching hole 11 and the first positioning hole 6 are the same, the outer contours and the setting positions of the second matching hole 12 and the second positioning hole 5 are the same, and the outer contours and the setting positions of the third matching hole 13 and the third positioning hole 4 are the same, so that the screw 8 can pass through the corresponding first matching hole 11, second matching hole 12 or third matching hole 13 after passing through any positioning hole of the first positioning hole 6, the second positioning hole 5 and the third positioning hole 4.
Further, the femur osteotomy guide plate 2 is processed by adopting a 3D printing technology, so that customized requirements are met, the design can be carried out according to different patients, the standardized requirements are met by the metal osteotomy guide plate, machining batch production can be carried out, and market requirements are met.
Further, a second oblique nail hole 14 is also formed on the femur osteotomy guide plate 2, and the screw nail 8 can pass through the first oblique nail hole 9 on the femur osteotomy guide plate 2 and the second oblique nail hole 14 on the femur osteotomy guide plate in sequence, so as to enhance the positioning effect of the femur osteotomy guide plate.
The installation process of the femur osteotomy guide plate component provided by the embodiment comprises the following steps:
the femur osteotomy guide plate 2 is completely attached to the femur 1, the femur osteotomy device is positioned through the first positioning hole 6, the first matching hole 11, the inclined nail hole and the screw nail 8, and if a doctor feels that the osteotomy amount is proper at the moment, the pendulum saw 7 can be used for osteotomy, namely, as shown in fig. 4;
if the bone cutting amount is not proper in the traditional Chinese medicine, the bone cutting amount needs to be adjusted, the femur bone cutting guide plate 2 and the femur bone cutting device are respectively detached, and the automatic adjustment can be carried out for addition, subtraction and cutting;
as shown in fig. 5, the second positioning hole 5 of the femur osteotomy device, the second matching hole 12 of the femur osteotomy guide plate 2 and the threaded nail 8 nailed before are matched, and osteotomy can be performed through the pendulum saw 7, so that osteotomy of 2mm is reduced.
As shown in fig. 6, the third positioning hole 4 of the femur osteotomy device and the third matching hole 13 of the femur osteotomy guide plate 2 are matched with the threaded nails 8 nailed before, and osteotomy can be performed through the pendulum saw 7, so that osteotomy of 2mm is realized.
According to the femur osteotomy guide plate component provided by the invention, the femur osteotomy guide plate 2 and the femur osteotomy guide plate component are combined and positioned in a matched manner through the threaded nails 8, the femur osteotomy guide plate is provided with the second positioning holes 5 and the third positioning holes 4, a doctor can add and subtract the osteotomy according to actual conditions in the operation, more osteotomy modes are met, the doctor is completely separated from the conventional femur proximal osteotomy guide plate in the operation, and the value of the guide plate is fully reflected.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention 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 technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A femoral osteotomy guide assembly, comprising:
a femoral osteotomy guide adapted to the patient's bony anatomy;
a femoral osteotomy device, the femoral osteotomy device comprising:
the bone cutter is inserted into the bone cutting groove to cut the femur, a plurality of positioning holes are formed in the bone cutter body at intervals in sequence, the positioning holes are suitable for being matched with screw nails to adjust the bone cutting quantity of the femur, a connecting line passing through the circle centers of the positioning holes is triangular, and the positioning holes have preset intervals of 1-3 mm in the height direction of the bone cutter body; wherein,,
one end of the osteotomy body, which is far away from the osteotomy groove, forms a table body, and the plurality of positioning holes are arranged on the table body and penetrate through the osteotomy body perpendicular to the horizontal surface of the table body;
the femur osteotomy guide plate is provided with a matching hole matched with the positioning holes, and the screw thread nails pass through the matching hole alternatively by the positioning holes so as to position the femur osteotomy guide plate and the femur osteotomy device; the femur osteotomy guide plate is provided with a matching groove matched with the osteotomy groove, and the osteotomy cutter can be inserted into the matching groove and the osteotomy groove to osteotomy the femur;
the bone cutter body is close to one end of the bone cutting groove and is provided with a first oblique nail hole, a second oblique nail hole is formed in the femur bone cutting guide plate, and a threaded nail is used for penetrating through the first oblique nail hole and the second oblique nail hole in sequence.
2. The femoral resection guide assembly of claim 1, wherein the plurality of positioning holes are symmetrically disposed in the table body along a vertical direction.
3. The femoral osteotomy guide assembly of claim 1, wherein the first oblique staple holes are symmetrically disposed in a vertical direction along the osteotomy body.
4. A femoral osteotomy guide assembly as in any of claims 1 to 3, wherein the osteotomy body is a metal osteotomy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111266515.2A CN113995465B (en) | 2021-10-28 | 2021-10-28 | Femur osteotomy device and femur osteotomy guide plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111266515.2A CN113995465B (en) | 2021-10-28 | 2021-10-28 | Femur osteotomy device and femur osteotomy guide plate assembly |
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| CN113995465A CN113995465A (en) | 2022-02-01 |
| CN113995465B true CN113995465B (en) | 2023-05-19 |
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| EP3753501A1 (en) * | 2019-06-21 | 2020-12-23 | Medartis Holding AG | Template and kits for domosteotomy |
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| CN203915042U (en) * | 2014-06-04 | 2014-11-05 | 吉林大学 | Femoral intercondylar osteotomy device |
| CN110353759B (en) * | 2019-07-22 | 2024-09-13 | 北京长木谷医疗科技股份有限公司 | Osteotomy guide plate |
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Address after: 100176 2201, 22 / F, building 1, yard 2, Ronghua South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing Changmugu Medical Technology Co.,Ltd. Patentee after: Zhang Yiling Address before: 100176 2201, 22 / F, building 1, yard 2, Ronghua South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING CHANGMUGU MEDICAL TECHNOLOGY Co.,Ltd. Patentee before: Zhang Yiling |