CN114451953A - Individualized location of knee joint cuts bone ware - Google Patents
Individualized location of knee joint cuts bone ware Download PDFInfo
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- CN114451953A CN114451953A CN202210125798.7A CN202210125798A CN114451953A CN 114451953 A CN114451953 A CN 114451953A CN 202210125798 A CN202210125798 A CN 202210125798A CN 114451953 A CN114451953 A CN 114451953A
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 21
- 210000000988 bone and bone Anatomy 0.000 title description 10
- 210000000078 claw Anatomy 0.000 claims abstract description 20
- 210000003127 knee Anatomy 0.000 claims 1
- 210000000845 cartilage Anatomy 0.000 description 11
- 210000000689 upper leg Anatomy 0.000 description 9
- 239000000725 suspension Substances 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 238000010146 3D printing Methods 0.000 description 5
- 210000003128 head Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000001054 cortical effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000013150 knee replacement Methods 0.000 description 2
- 238000003854 Surface Print Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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Abstract
The invention relates to a knee joint personalized positioning osteotome, belongs to the technical field of medical instruments, and solves the problems of complex structure and inconvenient use of the osteotome in the prior art. The invention provides a knee joint personalized positioning osteotome, which comprises an osteotomy navigation base station, a special-shaped positioning component and a limiting claw, wherein the special-shaped positioning component and the limiting claw are respectively arranged at two ends of the osteotomy navigation base station, and an osteotomy guide groove is formed in the osteotomy navigation base station. The positioning osteotome has simple structure and convenient use.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a knee joint personalized positioning osteotome.
Background
The osteotomy in the horizontal direction of the distal femur is one of the most critical osteotomy operation steps in the total knee replacement operation, the current generally-used osteotomy instrument for the knee replacement operation, in particular to the distal femur osteotomy instrument, has a very complex structure, mainly comprises a positioning component and an osteotomy component, in order to realize better positioning in the operation, a femoral medullary cavity is usually required to be opened to insert an intramedullary positioning rod, the position of the osteotomy component is determined by a posterior condylar positioning mode, and the positioning component is required to be detached to perform the osteotomy operation after the osteotomy component is fixed. The operation is very complicated to the positioning mode adjustment space of apparatus is less, is unfavorable for carrying out nimble and accurate adjustment operation to patient individual feature.
In recent years, a plurality of instrument manufacturers have provided individualized and customized knee joint operation osteotomy instruments, and the method based on reverse design designs a positioning structure according to the shape of the patient's own bone surface, and combines the positioning structure and the osteotomy navigation structure into a whole to form a single structural component with an irregular structure. The structural member is flexible in shape change, and is usually produced in a 3D printing mode, wherein nylon printing is the main implementation form. The nylon material is a good medical non-metal material and shows sufficient mechanical strength, but in practical application, many problems exist, such as the nylon printing precision is difficult to improve, the surface quality is poor, and abrasion dust is generated or nylon is melted due to high temperature when the nylon material is directly contacted with a saw blade in an operation, so that the nylon material has a great disadvantage in an integrated design mode.
Disclosure of Invention
In view of the above analysis, the embodiment of the present invention is directed to providing a knee joint personalized positioning osteotome, so as to solve the problems of complex structure and inconvenient use of the existing osteotome.
The invention provides a knee joint personalized positioning osteotome, which comprises an osteotomy navigation base station, a special-shaped positioning component and a limiting claw, wherein the special-shaped positioning component and the limiting claw are respectively arranged at two ends of the osteotomy navigation base station, and an osteotomy guide groove is arranged on the osteotomy navigation base station.
Further, the osteotomy navigation abutment comprises a reference panel, a first obliquely-arranged nail plate and a second obliquely-arranged nail plate, wherein the first obliquely-arranged nail plate and the second obliquely-arranged nail plate are respectively positioned at two ends of the reference panel.
Furthermore, the upper end surface of the first obliquely-arranged nail plate and the upper end surface of the second obliquely-arranged nail plate are inclined surfaces.
Further, the osteotomy navigation base station further comprises a first nail placing base station and a second nail placing base station, wherein the first nail placing base station and the second nail placing base station are arranged on the front side of the reference panel and are respectively positioned on two sides of the limiting claw.
Furthermore, the first nail placing base station is provided with a first positioning nail channel, a second positioning nail channel and a third positioning nail channel, the second nail placing base station is provided with a fourth positioning nail channel, a fifth positioning nail channel and a sixth positioning nail channel, and the axial directions of the positioning nail channels are parallel to each other and are parallel to the reference panel.
Further, the first oblique nail placing plate is provided with a first oblique nail path and a second oblique nail path, and the second oblique nail placing plate is provided with a third oblique nail path and a fourth oblique nail path.
Furthermore, the two ends of the osteotomy guide groove in the length direction extend to the first oblique nail placing plate and the second oblique nail placing plate and are terminated at a first cylindrical hole formed in the first oblique nail placing plate and a second cylindrical hole formed in the second oblique nail placing plate.
Furthermore, the special-shaped positioning component comprises a front positioning plate and a far-end positioning plate, the front positioning plate and the far-end positioning plate are respectively positioned on two sides of the osteotomy guide groove, and the far-end positioning plate comprises a first far-end positioning plate and a second far-end positioning plate.
Furthermore, the positioning osteotome further comprises a first guide cylinder and a second guide cylinder, wherein the first guide cylinder and the second guide cylinder are respectively arranged at the outer sides of the first far-end positioning plate and the second far-end positioning plate.
Furthermore, a first open slot is formed in the side wall of the first guide cylinder, and a second open slot is formed in the side wall of the second guide cylinder.
Compared with the prior art, the invention can realize at least one of the following beneficial effects:
(1) the invention is suitable for the production of a metal 3D printing technology, the overall structure is designed according to the characteristics of the 3D printing technology, and the number of the supporting structures in the 3D printing process can be well reduced and the printing deformation can be reduced at the same time if the inclination angle of a plurality of surfaces is required.
(2) The traditional guide plate positioning structure is determined according to the self anatomical structure of a patient, and has unique certainty, but a positioning area is difficult to find in an operation.
(3) The positioning osteotome has simple integral structure and convenient use, and the two structural forms provided by the special-shaped positioning component can be selected for use according to the actual condition of a patient, thereby expanding the application range of the positioning osteotome.
(4) The positioning osteotome is printed by adopting a metal material, so that the surface printing quality is improved, and the damage of the positioning osteotome caused by heat generated by a saw blade in the operation is avoided.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a reference drawing (one) showing a state of use of the positioning osteotome according to embodiment 1;
FIG. 2 is a schematic structural view (one) of the positioning osteotome of embodiment 1;
FIG. 3 is a schematic structural view of the positioning osteotome of embodiment 1;
FIG. 4 is a schematic structural view (III) of the positioning osteotome of the embodiment 1;
FIG. 5 is a schematic view (IV) of the positioning osteotome of embodiment 1;
FIG. 6 is a schematic structural view (V) of the positioning osteotome of embodiment 1;
FIG. 7 is a reference view (II) showing a state in which the osteotome is positioned according to embodiment 1;
FIG. 8 is a schematic view of the positioning osteotome of example 2;
FIG. 9 is a reference view showing a state in which the positioning osteotome of embodiment 2 is used.
Reference numerals:
100-femur; 110-femoral surgical epicondyle line; 120-medical anteroposterior guideline; 200-cartilage;
310-osteotomy navigation base station; 311-a reference panel; 312-1-a first obliquely nailed plate; 312-2-a second obliquely nailed plate; 313-1-a first nail placing base station; 313-2-a second screw placing base station; 314-first hollowing; 315-second hollowing; 316-boss;
320-osteotomy guide slot; 321-a first lip; 322-second lip; 322-1-a first cylindrical bore; 322-2-second cylindrical bore;
330-a profiled positioning member; 331-a front positioning plate; 332-distal positioning plate; 332-1-a first distal locating plate; 332-2-a second distal locating plate; 333-1-first cantilever arm; 333-2-second cantilever arm;
340-a limiting claw; 341-first connecting rod; 342-a second connecting rod; 343-limit claw head;
350-1-a first guide cylinder; 350-2-a second guide cylinder; 351-1-a first open slot; 351-2-a second open slot;
360-11-a first positioning nail path; 360-12-second positioning nail path; 360-13-third positioning nail path; 360-21-fourth positioning nail path; 360-22-fifth positioning nail path; 360-23-sixth positioning nail path;
361-11-first oblique nail way; 361-12-second oblique nail way; 361-21-third oblique nail way; 361-22-fourth oblique nail way.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
In the description of the embodiments of the present invention, it should be noted that the term "connected" is to be understood broadly, and may be, for example, fixed, detachable, or integrally connected, and may be mechanically or electrically connected, and may be directly or indirectly connected through an intermediate medium, unless otherwise specifically stated or limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.
Example 1
One embodiment of the present invention, as shown in fig. 1-7, discloses a knee joint personalized positioning osteotomy device (hereinafter referred to as positioning osteotomy device), which comprises an osteotomy navigation base 310, a special-shaped positioning member 330 and a limiting claw 340, wherein the special-shaped positioning member 330 and the limiting claw 340 are respectively disposed at two ends of the osteotomy navigation base 310, and the osteotomy navigation base 310 is provided with an osteotomy guiding groove 320.
It should be noted that the positioning osteotome of the present embodiment is made of a metal material and is produced by using a 3D printing technique.
The osteotomy navigation abutment 310 comprises a reference panel 311, a first obliquely nailing plate 312-1 and a second obliquely nailing plate 312-2, wherein the first obliquely nailing plate 312-1 and the second obliquely nailing plate 312-2 are respectively positioned at two ends of the reference panel 311. In this embodiment, the thicknesses of the first obliquely nailing plate 312-1, the second obliquely nailing plate 312-2 and the reference panel 311 are the same.
For ease of description, it is defined that the osteotomy navigation abutment 310 side is posterior with respect to the femur 100 and superior with respect to the shaped positioning member 330.
The upper end surface of the first inclined nail placing plate 312-1 is an inclined surface, and the included angle between the inclined surface and the upper end surface of the reference panel 311 is theta1The upper end surface of the second inclined nail placing plate 312-2 is also an inclined surface, and the inclined surface is connected with the baseThe angle between the upper end surface of the quasi-surface plate 311 is theta2，θ1And theta2Are all larger than 40 degrees, it should be noted that the upper end face of the reference panel 311 is a plane.
The osteotomy navigation base 310 further comprises a first nail placing base 313-1 and a second nail placing base 313-2, wherein the first nail placing base 313-1 and the second nail placing base 313-2 are arranged on the front side of the reference panel 311 and are respectively positioned on two sides of the limiting claw 340. The upper end surfaces and the lower end surfaces of the first nail placing base station 313-1 and the second nail placing base station 313-2 are inclined surfaces, and included angles theta between the upper end surface of the first nail placing base station 313-1 and the upper end surface of the second nail placing base station 313-2 and the upper end surface of the reference panel 311 are theta4，θ4Is in the range of 40 DEG to 90 DEG when theta is larger than4When the angle is 90 degrees, the upper end surfaces of the first nail placing base 313-1 and the second nail placing base 313-2 are flush with the upper end surface of the reference panel 311.
The first nail placing base station 313-1 is provided with a first positioning nail channel 360-11, a second positioning nail channel 360-12 and a third positioning nail channel 360-13, the second nail placing base station 313-2 is provided with a fourth positioning nail channel 360-21, a fifth positioning nail channel 360-22 and a sixth positioning nail channel 360-23, and the nail channels are mutually parallel in axial direction, are in vertical direction and are parallel to the reference panel 311.
In this embodiment, the first positioning nail path 360-11, the second positioning nail path 360-12 and the third positioning nail path 360-13 are arranged in a triangle, and the fourth positioning nail path 360-21, the fifth positioning nail path 360-22 and the sixth positioning nail path 360-23 are also arranged in a triangle, so that the positioning osteotome is firmly connected with the femur 100.
In the horizontal direction, the central shaft spacing of the first positioning nail path 360-11 and the fourth positioning nail path 360-21, the central shaft spacing of the second positioning nail path 360-12 and the fifth positioning nail path 360-22, and the central shaft spacing of the third positioning nail path 360-13 and the sixth positioning nail path 360-23 are equal; in the front-back direction, the central shaft spacing between the first positioning nail path 360-11 and the second positioning nail path 360-12, the central shaft spacing between the second positioning nail path 360-12 and the third positioning nail path 360-13 are equal, the central shaft spacing between the fourth positioning nail path 360-21 and the fifth positioning nail path 360-22, and the central shaft spacing between the fifth positioning nail path 360-22 and the sixth positioning nail path 360-23 are equal. Preferably, in the front-back direction, the central shaft distance between the first positioning nail path 360-11 and the second positioning nail path 360-12, and the central shaft distance between the fourth positioning nail path 360-21 and the fifth positioning nail path 360-22 are both 2 mm.
In order to further ensure the reliability of the connection of the positioning osteotome with the femur 100, the first oblique nail plate 312-1 is provided with a first oblique nail passage 361-11 and a second oblique nail passage 361-12, the second oblique nail plate 312-2 is provided with a third oblique nail passage 361-21 and a fourth oblique nail passage 361-22, and the first oblique nail passage 361-11, the second oblique nail passage 361-12, the third oblique nail passage 361-21 and the fourth oblique nail passage 361-22 are all positioned in front of the osteotomy guide slot 320.
The first diagonal nail way 361-11 and the second diagonal nail way 361-12 are axially parallel, the third diagonal nail way 361-21 and the fourth diagonal nail way 361-22 are axially parallel, and the first diagonal nail way 361-11, the second diagonal nail way 361-12, the third diagonal nail way 361-21 and the fourth diagonal nail way 361-22 are all inclined inwards towards the middle part of the medial and lateral malleolus of the femur 100. The oblique nail path and the positioning nail path in the embodiment are not parallel, all the nail paths do not interfere with each other along the respective directions, and at least the interference does not occur within the limited length range of the nail.
In order to reduce the weight of the positioning osteotome, the osteotomy navigation base 310 is provided with a first hollow 314 and a second hollow 315, the first hollow 314 is located on the front side surface of the reference panel 311, the second hollow 315 is located on the rear side surface of the reference panel 311, and the first hollow 314 is communicated with the second hollow 315. In this embodiment, a plurality of first holes 314 and a plurality of second holes 315 are provided.
The osteotomy navigation abutment 310 further comprises a boss 316, the boss 316 is located at the rear side surface of the reference panel 311, the upper end of the boss 316 is flush with the upper end surface of the reference panel 311, and the lower end of the boss 316 extends to the outer surface of the shaped positioning member 330. In this embodiment, the special-shaped positioning member 330 is a special-shaped positioning plate.
In this embodiment, the boss 316 is perpendicular to the upper end surface of the reference panel 311.
The osteotomy guiding groove 320 is located at a position near the rear side surface of the middle part of the osteotomy navigation base platform 310, and the osteotomy guiding groove 320 is perpendicular to the upper end surface of the base platform panel 311 and penetrates through the lower end surface of the base platform panel 311. The two ends of the osteotomy guiding slot 320 extend to the first inclined nail placing plate 312-1 and the second inclined nail placing plate 312-2 along the length direction thereof, and end at the first cylindrical hole 322-1 of the first inclined nail placing plate 312-1 and the second cylindrical hole 322-2 of the second inclined nail placing plate 312-2. The first cylindrical hole 322-1 and the second cylindrical hole 322-2 are axially inclined to form a shape having a wider upper space and a narrower lower space.
In this embodiment, the first cylindrical hole 322-1 and the second cylindrical hole 322-2 have the same diameter and are slightly larger than the width of the osteotomy guide slot 320.
The width of the osteotomy guide slot 320 is determined according to the thickness of the saw blade applicable to the surgical operation, and the size range of the slot width is the thickness of the saw blade plus 0.1 mm-0.4 mm.
In order to facilitate the rapid insertion of the saw blade in the operation, the notch of the osteotomy guiding slot 320 is provided with a first lip 321 and a second lip 322, the first lip 321 and the second lip 322 are both arc-shaped inlets, and the arc is in tangential transition with the slot wall of the osteotomy guiding slot 320. In this embodiment, the width of the entrance of the first lip 321 and the second lip 322 is 1.5 to 2 times of the width of the osteotomy guiding groove 320.
The osteotomy guide slot 320 divides the shaped positioning member 330 into two parts, a front positioning plate 331 and a distal positioning plate 332, respectively, the front positioning plate 331 is located at the front side of the osteotomy guide slot 320, and the distal positioning plate 332 comprises a first distal positioning plate 332-1 and a second distal positioning plate 332-2.
The inner side of the special-shaped positioning component 330 is directly attached to the cartilage 200 of the patient, the distal positioning plate 332 is of an irregular thin plate structure with uniform wall thickness, and the thickness of the distal positioning plate 332 can be controlled within the range of 0.5 mm-2.5 mm according to actual conditions.
The limiting claw 340 comprises a first connecting rod 341, a second connecting rod 342 and a limiting claw head 343, and the first connecting rod 341, the second connecting rod 342 and the limiting claw head 343 are connected in sequence. The first nail placing base 313-1 and the second nail placing base 313-2 are respectively positioned at the two sides in front of the osteotomy guide groove 320, a concave platform is formed between the first nail placing base 313-1 and the second nail placing base 313-2, the limiting claw 340 starts from the middle area above the platform, and the front positioning plate 331 is positioned at the lower area of the platform.
One end of the first connecting rod 341 is connected to the recessed platform, the other end is connected to one end of the second connecting rod 342, the other end of the second connecting rod 342 is a limiting claw head 343, the limiting claw head 343 extends to contact with the anterior condylar cortical bone of the femur 100, the first connecting rod 341 is parallel to the upper end surface of the base panel 311 and perpendicular to the reference panel 311, the second connecting rod 342 is an inclined rod, the second connecting rod 342 is inclined towards the special-shaped positioning member 330, and the included angle θ between the second connecting rod 342 and the upper end surface of the reference panel 311 is3，θ3The range of (a) is 40 to 140 degrees.
The positioning osteotome further includes a first guide sleeve 350-1 and a second guide sleeve 350-2 for drill guidance. The first guide cylinder 350-1 and the second guide cylinder 350-2 are respectively disposed at the outer sides of the first distal positioning plate 332-1 and the second distal positioning plate 332-2. The end surfaces of the first guide cylinder 350-1 and the second guide cylinder 350-2 are flush, so that the drilling depth of the drill bit along the axial direction of the guide cylinders is limited, and the drilling depth can be customized by adjusting the end surface positions of the first guide cylinder 350-1 and the second guide cylinder 350-2.
The line connecting the centers of the first guide sleeve 350-1 and the second guide sleeve 350-2 is horizontally parallel to the femoral surgical epicondyle line 110, and the medial anterior-posterior indicator line 120 is perpendicular to the femoral surgical epicondyle line 110 and collinear with the boss 316.
For the convenience of observation in the operation, a first opening groove 351-1 is formed on the sidewall of the first guide cylinder 350-1, and a second opening groove 351-2 is formed on the sidewall of the second guide cylinder 350-2, in this embodiment, the first opening groove 351-1 and the second opening groove 351-2 are both formed on the lower sidewalls of the first guide cylinder 350-1 and the second guide cylinder 350-2.
Example 2
Another embodiment of the invention, as shown in fig. 8-9, discloses a knee joint personalized positioning osteotome (hereinafter referred to as positioning osteotome), which is suitable for the condition that the patient cartilage 200 is seriously worn or the reconstruction of the cartilage 200 cannot be realized, the inner side of the special-shaped positioning member 330 is attached to the patient bone surface (non-cartilage surface), and the cartilage tissue in the attachment area of the special-shaped positioning member 330 needs to be stripped off in the operation. The positioning osteotome of the present embodiment is the same as that of embodiment 1, and the differences are as follows:
the irregular-shaped positioning member 330 further comprises a first suspension arm 333-1 and a second suspension arm 333-2, one end of the first suspension arm 333-1 is connected with the osteotomy navigation base table 310, the other end is connected with the first guide cylinder 350-1, one end of the second suspension arm 333-2 is connected with the osteotomy guide base table 310, and the other end is connected with the second guide cylinder 350-2. In this embodiment, the first distal positioning plate 332-1 and the second distal positioning plate 332-2 are connected to the osteotomy navigation base 310 as a whole through the first suspension arm 333-1 and the second suspension arm 333-2.
The middle portion of the lower portion of the osteotomy navigation base 310 extends downward to form an extension, a gap exists between the extension and the bone tissue (including cartilage tissue), the extension is located behind the front positioning plate 331, and the extension are respectively located at two sides of the osteotomy guide slot 320. The boss 316 extends from the upper end surface of the reference panel 311 to the lower edge of the extension portion, and the first and second suspension arms 333-1 and 333-2 start at the extension portion and are respectively located at both sides of the boss 316.
Example 3
Another specific embodiment of the present invention, as shown in fig. 1-7, discloses a method for using a knee joint personalized positioning osteotome, using the positioning osteotome of embodiment 1, comprising the steps of:
s01: exposing the femoral condyle.
S02: the position of the osteotomy device is preliminarily judged and positioned by naked eyes and is placed on the surface of the femoral condyle cartilage.
S03: the osteotome is slid and positioned along the surface of the femoral cartilage, and the position of the osteotome is finely adjusted until the special-shaped positioning component 330 is uniformly attached to the femoral cartilage, and the surface of the first connecting rod 341 of the limiting claw 340 is contacted with the anterior femoral condyle cortical bone.
S04: and respectively placing a positioning nail along the positioning nail path. In any one of the three groups of positioning nail paths, a first positioning nail path 360-11 and a fourth positioning nail path 360-21 are preferred.
S05: one to two fixing nails are respectively arranged along the oblique nail path.
S06: and respectively drilling holes along the guide cylinders.
S07: the blade is inserted along the osteotomy guide slot 320 and resects the distal bone of the femur against the wall of the osteotomy guide slot 320.
S08: and taking out the fixing nail in the oblique nail path.
S09: and (4) axially detaching the positioning osteotome (retaining the positioning nail) along the positioning nail path.
S10: and measuring the osteotomy thickness, and if the osteotomy thickness is smaller, performing S11 operation, and if the osteotomy thickness is smaller, performing S13 operation.
S11: and selecting a new nail path on the positioning nail path according to the difference, and repositioning the osteotome along the positioning nail.
S12: S05-S10 were repeated.
S13: taking out the positioning nail in the positioning nail channel;
s14: and (5) completing osteotomy.
Example 4
Another embodiment of the invention, as shown in fig. 8-9, discloses a method for using a knee joint personalized positioning osteotome, using the positioning osteotome of embodiment 2, comprising the steps of:
s01: exposing the femoral condyle.
S02: the position of the osteotomy device is preliminarily judged and positioned by naked eyes and is placed on the cartilage surface of the femoral condyle.
S03: and after the positioning osteotome is adjusted to an ideal position, marking the position of the fitting region, and taking down the positioning osteotome.
S04: the cartilage tissue in the marked area is stripped off.
S05: the osteotome is repositioned and the position is manually fine-tuned until it fits uniformly over the bone surface.
S06: and respectively placing a positioning nail along the positioning nail path. In any one of the three groups of positioning nail paths, a first positioning nail path 360-11 and a fourth positioning nail path 360-21 are preferred.
S07: one to two fixing nails are respectively arranged along the oblique nail path.
S08: and respectively drilling holes along the guide cylinders.
S09: the blade is inserted along the osteotomy guide slot 320 and resects the distal bone of the femur against the wall of the osteotomy guide slot 320.
S10: and taking out the fixing nail in the oblique nail path.
S11: and (4) axially detaching the positioning osteotome (retaining the positioning nail) along the positioning nail path.
S12: and measuring the osteotomy thickness, and if the osteotomy thickness is smaller, performing S13 operation, and if the osteotomy thickness is smaller, performing S15 operation.
S13: and selecting a new nail channel on the positioning nail channel according to the difference, and repositioning the osteotomy device along the positioning nail.
S14: S07-S12 were repeated.
S15: and taking out the positioning nails in the positioning nail channels.
S16: and (5) completing osteotomy.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The individualized positioning osteotomy device for the knee joint is characterized by comprising an osteotomy navigation base station (310), a special-shaped positioning component (330) and a limiting claw (340), wherein the special-shaped positioning component (330) and the limiting claw (340) are respectively arranged at two ends of the osteotomy navigation base station (310), and an osteotomy guide groove (320) is arranged on the osteotomy navigation base station (310).
2. The knee joint personalized positioning osteotomy device according to claim 1, wherein said osteotomy navigation abutment (310) comprises a reference panel (311), a first obliquely nailed plate (312-1) and a second obliquely nailed plate (312-2), said first obliquely nailed plate (312-1) and said second obliquely nailed plate (312-2) being respectively located at two ends of said reference panel (311).
3. The knee joint personalized positioning osteotome according to claim 2, wherein an upper end surface of said first obliquely placed nail plate (312-1) and an upper end surface of said second obliquely placed nail plate (312-2) are both beveled.
4. The knee joint personalized positioning osteotomy device according to claim 2, wherein the osteotomy navigation abutment (310) further comprises a first nail placement abutment (313-1) and a second nail placement abutment (313-2), the first nail placement abutment (313-1) and the second nail placement abutment (313-2) are arranged on the front side of the reference panel (311) and are respectively arranged on two sides of the limiting claw (340).
5. The knee joint personalized positioning osteotome device according to claim 4, wherein the first nail placing base station (313-1) is provided with a first positioning nail channel (360-11), a second positioning nail channel (360-12) and a third positioning nail channel (360-13), the second nail placing base station (313-2) is provided with a fourth positioning nail channel (360-21), a fifth positioning nail channel (360-22) and a sixth positioning nail channel (360-23), and the axial directions of the positioning nail channels are parallel to each other and are parallel to the reference panel (311).
6. The knee joint personalized positioning osteotomy device of claim 2, wherein said first obliquely placed nail plate (312-1) is provided with a first obliquely nail passage (361-11) and a second obliquely nail passage (361-12), said second obliquely placed nail plate (312-2) is provided with a third obliquely nail passage (361-21) and a fourth obliquely nail passage (361-22).
7. The knee joint personalized positioning osteotomy device of claim 2, wherein both ends along a length direction of said osteotomy guide slot (320) extend to said first obliquely placed nail plate (312-1) and said second obliquely placed nail plate (312-2) and terminate in a first cylindrical hole (322-1) provided in said first obliquely placed nail plate (312-1) and a second cylindrical hole (322-2) provided in said second obliquely placed nail plate (312-2).
8. The knee joint personalized positioning osteotomy device of claims 2-7, wherein said shaped positioning member (330) comprises a forward positioning plate (331) and a distal positioning plate (332), said forward positioning plate (331) and said distal positioning plate (332) being respectively located on both sides of said osteotomy guide slot (320), said distal positioning plate (332) comprising a first distal positioning plate (332-1) and a second distal positioning plate (332-2).
9. The knee personalized positioning osteotome of claim 8, further comprising a first guide sleeve (350-1) and a second guide sleeve (350-2), said first guide sleeve (350-1) and said second guide sleeve (350-2) being respectively disposed outside of said first distal positioning plate (332-1) and said second distal positioning plate (332-2).
10. The knee joint personalized positioning osteotome according to claim 9, wherein a first open slot (351-1) is provided on a sidewall of said first guide cylinder (350-1), and a second open slot (351-2) is provided on a sidewall of said second guide cylinder (350-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210125798.7A CN114451953A (en) | 2022-02-10 | 2022-02-10 | Individualized location of knee joint cuts bone ware |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210125798.7A CN114451953A (en) | 2022-02-10 | 2022-02-10 | Individualized location of knee joint cuts bone ware |
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| CN114451953A true CN114451953A (en) | 2022-05-10 |
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| CN202210125798.7A Pending CN114451953A (en) | 2022-02-10 | 2022-02-10 | Individualized location of knee joint cuts bone ware |
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| EP0677274A2 (en) * | 1994-02-22 | 1995-10-18 | Osteonics Corp. | Method and apparatus for the alignment of a femoral knee prosthesis |
| CN108309394A (en) * | 2018-03-12 | 2018-07-24 | 北京市春立正达医疗器械股份有限公司 | A kind of osteotomy positioning device again for shin bone |
| CN108366791A (en) * | 2015-10-14 | 2018-08-03 | 麦迪欧克医疗公司 | The matched device and method of patient for carrying out surgical operation |
| EP3769701A2 (en) * | 2019-07-26 | 2021-01-27 | Aesculap AG | Composite saw blade for a medical bone saw |
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2022
- 2022-02-10 CN CN202210125798.7A patent/CN114451953A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0677274A2 (en) * | 1994-02-22 | 1995-10-18 | Osteonics Corp. | Method and apparatus for the alignment of a femoral knee prosthesis |
| CN108366791A (en) * | 2015-10-14 | 2018-08-03 | 麦迪欧克医疗公司 | The matched device and method of patient for carrying out surgical operation |
| CN108309394A (en) * | 2018-03-12 | 2018-07-24 | 北京市春立正达医疗器械股份有限公司 | A kind of osteotomy positioning device again for shin bone |
| EP3769701A2 (en) * | 2019-07-26 | 2021-01-27 | Aesculap AG | Composite saw blade for a medical bone saw |
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