CN113081157B - Knee joint replacement cuts bone baffle - Google Patents
Knee joint replacement cuts bone baffle Download PDFInfo
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- CN113081157B CN113081157B CN202110286359.XA CN202110286359A CN113081157B CN 113081157 B CN113081157 B CN 113081157B CN 202110286359 A CN202110286359 A CN 202110286359A CN 113081157 B CN113081157 B CN 113081157B
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- mounting hole
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- surface upright
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- 210000000629 knee joint Anatomy 0.000 title abstract description 32
- 210000000988 bone and bone Anatomy 0.000 title abstract description 17
- 238000003825 pressing Methods 0.000 claims description 34
- 238000013150 knee replacement Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 230000001954 sterilising effect Effects 0.000 abstract description 12
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 12
- 238000007639 printing Methods 0.000 abstract description 10
- 238000005520 cutting process Methods 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 6
- 238000010146 3D printing Methods 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 9
- 239000007769 metal material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000000016 photochemical curing Methods 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
- 238000007493 shaping process Methods 0.000 description 1
- 230000008719 thickening 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention provides a knee joint replacement bone cutting guide plate. The knee joint replacement osteotomy guide plate comprises a main frame and a fitting surface upright post, and the main frame is provided with a mounting hole; the fitting surface stand column is detachably mounted in the mounting hole and is printed and molded through 3D. This knee joint replacement cuts bone conduction board can use conventional mode preparation body frame, prints fashioned fitting surface stand and body frame assembly with 3D, can promote the structural strength that this knee joint replacement cuts bone conduction board greatly, and the maximize exposes the operation field of vision. Meanwhile, printing consumables can be reduced, and the economical efficiency of the printing consumables is improved. Meanwhile, the main frame can adapt to various sterilization modes, and the structure precision error is low.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a knee joint replacement bone cutting guide plate.
Background
The knee joint replacement bone cutting guide plate is an operation auxiliary tool, and the guide plate is utilized, so that the opening of marrow is not needed, the operation wound is reduced, the tools used in the operation are simplified, and the operation efficiency is improved. Meanwhile, the learning curve of the doctor is shortened, and the operation efficiency is ensured. And the guide plate is customized according to the bone of the patient, so that the accuracy of the operation is greatly improved.
At present, most guide plates are designed integrally and are integrally printed by using nylon materials, resin materials or polylactic acid materials in a 3D mode. The material for producing the guide plate by 3D printing needs to meet the requirements of biological property and mechanical property and is suitable for a plurality of requirements such as 3D printing technology, so that the selection range is very small, and the requirements of guide plate production are hardly met to the maximum. That is, the matching guide plate designed integrally and printed integrally in 3D has at least the following disadvantages:
1. because 3D printed material's limitation, in order to guarantee baffle mechanical properties, need follow structural design and compromise, utilize the thickening, increase baffle structural feature and improve mechanical properties, the overall structure that can lead to the baffle like this is too heavy, and the volume is too big, uses inconveniently and can shelter from art person's field of vision in the art, inconvenient observation.
2. The baffle that the global design was printed when 3D printed processing production, needs whole product to process, and 3D printing technology adopts hot melt or photocuring mode mostly, and such processing mode is unfriendly to the work piece of great size (especially thickness is big, the very long structure of length), because thickness is big more, length is longer more, and work piece internal stress is big more, can cause 3D to print the deformation distortion of work piece overall structure to the shrinkage factor is big more, can cause bigger size error.
3. When whole 3D printed the baffle, the time-consuming materials are all very much, and the economic nature is not high.
4. During sterilization, due to the characteristics of the printing material, the guide plate printed integrally is deformed due to the change of the physical environment in the sterilization process after sterilization, the precision is reduced, and the intraoperative positioning effect of the guide plate is reduced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the knee joint replacement osteotomy guide plate provided by the invention has the advantages that the fitting surface upright column is formed by using a 3D printing technology, the main frame can be prepared in a conventional mode, and then the fitting surface upright column formed by 3D printing is assembled with the main frame, so that the structural strength of the knee joint replacement osteotomy guide plate can be greatly improved, the structural design is optimized, the printing consumables can be greatly reduced, the structural design of the knee joint replacement osteotomy guide plate can be optimized, the redundant part is removed, the knee joint replacement osteotomy guide plate is simple in structure, and the surgical field is exposed to the maximum extent.
The embodiment of the invention provides a knee joint replacement bone cutting guide plate, which comprises:
the main frame is provided with mounting holes;
the fitting surface stand column is detachably mounted in the mounting hole and is formed through 3D printing.
According to the knee joint replacement osteotomy guide plate provided by the embodiment of the invention, the fitting surface upright column is formed by using a 3D printing technology, the main frame can be prepared in a conventional mode, and then the fitting surface upright column formed by 3D printing is assembled with the main frame, so that the structural strength of the knee joint replacement osteotomy guide plate can be greatly improved, the structural design is optimized, and the redundant part is removed, so that the knee joint replacement osteotomy guide plate is simple in structure, and the operation visual field is exposed to the maximum. Meanwhile, the fitting surface stand column is prepared only through the 3D printing technology, so that printing consumables can be greatly reduced, and the economical efficiency of the fitting surface stand column is improved. In addition, only adopt metal material preparation with the body frame, can guarantee that the body frame can adapt to multiple sterilization mode, the structure is more stable, can reduce because the structure precision error that the sterilization caused.
According to one embodiment of the invention, the main frame comprises a pressing crank arm and an abutting table, and the mounting holes comprise a first mounting hole and a second mounting hole;
the first end of the pressing crank arm is provided with the first mounting hole, the second end of the pressing crank arm is connected with the abutting table, and the second mounting hole is formed in one side, facing the first mounting hole, of the abutting table;
the fitting surface stand column comprises a first fitting surface stand column and a second fitting surface stand column, the first fitting surface stand column is connected with the first mounting holes in a clamping mode, and the second fitting surface stand column is connected with the second mounting holes in a clamping mode.
According to one embodiment of the invention, the clamping structure comprises a first clamping block and a second clamping block which are mutually clamped and matched,
the first fixture block is arranged on one of the first fitting surface upright post and the first mounting hole, and the second fixture block is arranged on the other one of the first fitting surface upright post and the first mounting hole;
the first fixture block is arranged on one of the second fitting surface upright post and the second mounting hole, and the second fixture block is arranged on the other one of the second fitting surface upright post and the second mounting hole.
According to an embodiment of the invention, a hole side wall of the first mounting hole is formed with a first deformation portion suitable for deformation, and the first fixture block or the second fixture block is arranged at one end of the first deformation portion close to the end face of the first mounting hole;
the side wall of the second mounting hole is provided with a second deformation part suitable for deformation, and the first fixture block or the second fixture block is arranged at one end, close to the end face of the second mounting hole, of the second deformation part.
According to one embodiment of the invention, a first mounting head is formed at one end of the first fitting surface upright post, and the first fixture block or the second fixture block is formed on a side wall of the first mounting head;
and a second mounting head is formed at one end of the second fitting surface upright post, and the first fixture block or the second fixture block is formed on the side wall of the second mounting head.
According to an embodiment of the present invention, the first mounting hole is one of a regular hole and a special-shaped hole, and the shape of the first mounting head is adapted to the shape of the first mounting hole;
the second mounting hole is the other one of a regular hole and a special-shaped hole, and the shape of the second mounting head is matched with that of the second mounting hole.
According to one embodiment of the invention, a first nail placing hole penetrating through the first mounting hole is formed in the first mounting hole in the axial direction of the first mounting hole.
According to an embodiment of the present invention, a second nail placing hole extending in an axial direction of the second mounting hole and penetrating a thickness direction of the pressing crank arm is formed at a second end of the pressing crank arm.
According to an embodiment of the present invention, a bone cutting groove penetrating through a thickness direction of the pressing crank arm is formed in the pressing crank arm in an axial direction of the first mounting hole and/or an axial direction of the second mounting hole.
According to one embodiment of the invention, gripping structures for increasing the friction force are formed on the surface of the pressing crank arm facing away from the bending center and/or the surface of the abutting table facing away from the first mounting hole.
One or more technical solutions in the present invention have at least one of the following technical effects:
according to the knee joint replacement osteotomy guide plate provided by the embodiment of the invention, the fitting surface upright column is formed by using a 3D printing technology, the main frame can be prepared in a conventional mode, and then the fitting surface upright column formed by 3D printing is assembled with the main frame, so that the structural strength of the knee joint replacement osteotomy guide plate can be greatly improved, the structural design is optimized, and the redundant part is removed, so that the knee joint replacement osteotomy guide plate is simple in structure, and the operation visual field is exposed to the maximum. Meanwhile, the fitting surface stand column is prepared only through the 3D printing technology, so that printing consumables can be greatly reduced, and the economical efficiency of the fitting surface stand column is improved. In addition, only adopt metal material preparation with the body frame, can guarantee that the body frame can adapt to multiple sterilization mode, the structure is more stable, can reduce because the structure precision error that the sterilization caused.
Drawings
FIG. 1 is a schematic block diagram of an angle of a knee replacement osteotomy guide provided in an embodiment of the present invention;
FIG. 2 is a schematic block diagram of another angle of a knee replacement osteotomy guide provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic block diagram of yet another angle of a knee replacement osteotomy guide provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic exploded view of a knee replacement osteotomy guide provided in accordance with an embodiment of the present invention;
FIG. 5 is a schematic side view of a mainframe provided in accordance with an embodiment of the invention;
FIG. 6 is an angular schematic block diagram of a main frame provided in an embodiment of the present invention;
FIG. 7 is another angular schematic block diagram of a mainframe provided in accordance with an embodiment of the invention;
FIG. 8 is a reference view of an angle of use of a knee replacement osteotomy guide provided in accordance with an embodiment of the present invention;
FIG. 9 is a reference view of another angle of the knee replacement osteotomy guide of the present invention.
Reference numerals:
100. a main frame; 102. pressing the crank arm; 104. a butting table; 106. a first mounting hole; 108. a second mounting hole; 110. a first fitting surface upright post; 112. a second fitting surface upright post; 114. a first clamping block; 116. a second fixture block; 118. a first deformation section; 120. a second deformation part; 122. a first mounting head; 124. a second mounting head; 126. a first nail placing hole; 128. a second nail placing hole; 130. a osteotomy slot; 132. and (5) grabbing the structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in fig. 1 to 9, an embodiment of the invention provides a knee replacement osteotomy guide plate, which comprises a main frame 100 and a fitting surface upright post; be provided with the mounting hole on the body frame 100, fitting surface stand detachably installs in the mounting hole, and the shaping is printed through 3D to the fitting surface stand.
According to the knee joint replacement osteotomy guide plate provided by the embodiment of the invention, the fitting surface upright column is formed by using a 3D printing technology, the main frame 100 can be prepared in a conventional mode, and then the fitting surface upright column formed by 3D printing is assembled with the main frame 100, so that the structural strength of the knee joint replacement osteotomy guide plate can be greatly improved, the structural design is optimized, redundant parts are removed, the knee joint replacement osteotomy guide plate is simple in structure, and the operation visual field is exposed to the maximum extent. Meanwhile, the fitting surface stand column is prepared only through the 3D printing technology, so that printing consumables can be greatly reduced, and the economical efficiency of the fitting surface stand column is improved. In addition, only with body frame 100 adoption metal material preparation, can guarantee that body frame 100 can adapt to multiple sterilization mode, the structure is more stable, can reduce because the structure precision error that the sterilization caused.
Optionally, the knee joint replacement bone cutting guide plate provided by the embodiment of the invention mainly comprises a main frame 100 and a fitting surface upright post.
Wherein, the main frame 100 comprises a pressing crank arm 102 and an abutting platform 104; the fitting surface upright columns comprise a first fitting surface upright column 110 and a second fitting surface upright column 112; the mounting holes include a first mounting hole 106 and a second mounting hole 108.
The pressing crank 102 serves to fix the first fitting surface post 110 while the knee replacement osteotomy guide can be pressed to the patient's affected site.
In the present embodiment, the pressing crank arm 102 is substantially L-shaped, that is, as shown in fig. 5, in the present embodiment, the pressing crank arm 102 is curved. Alternatively, the first end of the pressing crank arm 102 is extended horizontally from the left, and the second end of the pressing crank arm 102 is extended vertically downward, so that the pressing crank arm 102 having a curved shape can be formed.
A first mounting hole 106 is provided at a first end of the pressing crank arm 102, and optionally, an opening of the first mounting hole 106 is opened toward a bending center of the pressing crank arm 102, that is, as shown in fig. 1 to 3, an axial direction of the first mounting hole 106 is a vertical direction, and a first fitting surface upright 110 is detachably mounted in the first mounting hole 106.
The second end of the press crank arm 102 is interconnected with the abutment table 104, wherein the abutment table 104 is used for mounting the second fitting surface upright 112, whereby a second mounting hole 108 is formed on the abutment table 104, the opening direction of the second mounting hole 108 is the horizontal direction to the right as shown in fig. 1 to 3, and the second fitting surface upright 112 is detachably mounted in the second mounting hole 108.
Here, it should be noted that the first mounting hole 106 and the second mounting hole 108 are both blind holes. Further, two first mounting holes 106 are provided, and the two first mounting holes 106 are provided on both sides of the first end of the pressing crank arm 102, respectively.
In the embodiment of the present invention, the main frame 100 may be made of a metal material by a conventional manufacturing method, that is, the main frame 100 may be produced by using a metal material in a standardized manner. Therefore, the preparation efficiency of the main frame 100 can be improved, and the overall manufacturing cost of the knee joint replacement osteotomy guide plate is reduced.
In the embodiment of the present invention, the first fitting surface upright column 110 and/or the second fitting surface upright column 112 are formed by 3D printing, in other words, in the embodiment of the present invention, the first fitting surface upright column 110 and/or the second fitting surface upright column 112 are formed by only 3D printing technology, and it can be understood that, by this way, the assembly type installation of the knee joint replacement osteotomy guide plate can be achieved, that is, the assembly type installation of the main frame 100 made of a metal material and the first fitting surface upright column 110 and/or the second fitting surface upright column 112 made by 3D printing technology can greatly reduce printing consumables of the knee joint replacement osteotomy guide plate, and improve the economy thereof.
In the embodiment of the present invention, the first fitting surface pillar 110 and the second fitting surface pillar 112 are both prepared and molded by a 3D printing technology. Of course, in other embodiments, the first fitting surface pillar 110 or the second fitting surface pillar 112 may be separately molded by 3D printing.
According to one embodiment of the present invention, the first fitting surface post 110 and the first mounting hole 106, and the second fitting surface post 112 and the second mounting hole 108 are adapted to be connected by a snap-fit structure.
The first fitting surface upright column 110 is connected with the first mounting hole 106, and the second fitting surface upright column 112 is connected with the second mounting hole 108 through clamping structures, so that the connection convenience between the first fitting surface upright column 110 and the first mounting hole 106 and between the second fitting surface upright column 112 and the second mounting hole 108 can be improved. In other words, when the first fitting surface upright column 110 and the second fitting surface upright column 112 with different specifications need to be replaced according to the patient position of the patient, the first fitting surface upright column and the second fitting surface upright column can be quickly detached and connected through the clamping structure.
In one embodiment of the present invention, the latching structure includes a first latch 114 and a second latch 116 that are engaged with each other.
The first latch 114 is disposed on one of the first fitting surface upright 110 and the first mounting hole 106, and the second latch 116 is disposed on the other of the first fitting surface upright 110 and the first mounting hole 106.
For example, a first latch 114 may be disposed on the first fitting surface upright 110 and a second latch 116 may be disposed in the first mounting hole 106. Alternatively, the first latch 114 may be disposed in the first mounting hole 106, and the second latch 116 may be disposed on the first fitting surface upright 110.
The first latch 114 is disposed on one of the second fitting surface upright 112 and the second mounting hole 108, and the second latch 116 is disposed on the other of the second fitting surface upright 112 and the second mounting hole 108.
For example, a first detent 114 may be disposed on the second fitting surface upright 112 and a second detent 116 may be disposed in the second mounting hole 108. Alternatively, the first latch 114 may be disposed in the second mounting hole 108, and the second latch 116 may be disposed on the second fitting surface upright 112.
Through the clamping fit of the first clamping block 114 and the second clamping block 116, the quick assembly and disassembly fit of the first fitting surface upright column 110 and the first mounting hole 106 and the quick assembly and disassembly fit of the second fitting surface upright column 112 and the second mounting hole 108 can be realized.
Of course, in other embodiments, the above-mentioned locking structure may also be a manner of matching the latch with the slot.
For example, the latch may be disposed on the first fitting surface post 110 and the catch may be disposed in the first mounting hole 106. Alternatively, the latch may be disposed in the first mounting hole 106, and the slot may be disposed on the first fitting surface pillar 110.
Through the clamping fit of the clamping block and the clamping groove, the quick assembling and disassembling fit of the first fitting surface upright column 110 and the first mounting hole 106 and the quick assembling and disassembling fit of the second fitting surface upright column 112 and the second mounting hole 108 are realized.
Alternatively, the clamping structure described above can be replaced by an elastic bolt or the like, which is not exhaustive here.
According to an embodiment of the present invention, the hole sidewall of the first mounting hole 106 is formed with a first deformation portion 118 adapted to be deformed, and the first latch 114 or the second latch 116 is disposed at an end of the first deformation portion 118 close to the end surface of the first mounting hole 106; the hole sidewall of the second mounting hole 108 is formed with a second deformation portion 120 adapted to deform, and the first latch 114 or the second latch 116 is disposed at an end of the second deformation portion 120 close to the end surface of the second mounting hole 108.
Referring to fig. 6 and 7, the first deformation portion 118 is formed on the hole side wall of the first mounting hole 106, in other words, when the first fitting surface upright post 110 is inserted into the first mounting hole 106, the first deformation portion 118 can be deformed to allow the first fitting surface upright post 110 to be smoothly inserted into the first mounting hole 106. The first deformation portion 118 is provided with the first latch 114 or the second latch 116 at a position close to the hole end surface of the first mounting hole 106.
Similarly, a second deformation portion 120 is formed on the hole sidewall of the second mounting hole 108, in other words, when the second fitting surface pillar 112 is inserted into the second mounting hole 108, the second deformation portion 120 can deform to allow the second fitting surface pillar 112 to be smoothly inserted into the second mounting hole 108. The first latch 114 or the second latch 116 is disposed at a position of the second deformation portion 120 close to the hole end surface of the second mounting hole 108.
For example, the first deformation portion 118 may be formed by opening two open grooves through the hole sidewall of the first mounting hole 106 in the hole sidewall of the first mounting hole 106.
According to an embodiment of the present invention, one end of the first fitting surface upright 110 is formed with a first mounting head 122, and the first latch 114 or the second latch 116 is formed on a side wall of the first mounting head 122; one end of the second fitting surface upright 112 is formed with a second mounting head 124, and the first latch 114 or the second latch 116 is formed on a side wall of the second mounting head 124.
Referring to fig. 4, a first mounting head 122 is formed at an end of the first fitting surface upright 110, and the first latch 114 or the second latch 116 is formed on a sidewall of the first mounting head 122. It should be noted that, when the cross section of the first mounting head 122 is circular, the diameter of the first mounting head 122 is slightly smaller than the diameter of the first fitting surface pillar 110.
Similarly, a second mounting head 124 is formed at the end of the second fitting surface pillar 112, and the first latch 114 or the second latch 116 is formed on the side wall of the second mounting head 124. It should be noted that, when the cross section of the second mounting head 124 is circular, the diameter of the second mounting head 124 is slightly smaller than the diameter of the second fitting surface pillar 112.
In other words, in embodiments of the present invention, the first mounting head 122 is used to mount the first fitting surface stud 110 in the first mounting hole 106, and the second mounting head 124 is used to mount the second fitting surface stud 112 in the second mounting hole 108.
According to an embodiment of the present invention, the first mounting hole 106 is one of a regular hole and a special-shaped hole, and the shape of the first mounting head 122 is adapted to the shape of the first mounting hole 106; the second mounting hole 108 is another of a regular hole and a irregular hole, and the shape of the second mounting head 124 is adapted to the shape of the second mounting hole 108.
Alternatively, the regular hole refers to a hole having a regular shape, such as a circular hole, a triangular hole, a rectangular hole, or the like, and the irregular hole refers to a hole in which a semicircle is combined with a triangle, for example.
As described above, in the embodiment of the present invention, the number of the first mounting holes 106 is two, and the two first mounting holes 106 may be provided as regular holes, for example, one of the first mounting holes 106 may be provided as a triangular hole, the other first mounting hole 106 may be provided as a rectangular hole, and the second mounting hole 108 may be provided as a fan-shaped hole. Accordingly, the first mounting heads 122 are shaped to fit the shapes of the two first mounting holes 106, respectively, and the second mounting heads 124 are shaped to fit the shapes of the second mounting holes 108, respectively.
Thus, the first fitting surface pillar 110 and the second fitting surface pillar 112 can be prevented from being erroneously fitted to the first mounting hole 106 and the second mounting hole 108. Of course, the fool-proof design of the first fitting surface upright column 110, the second fitting surface upright column 112, the first mounting hole 106, and the second mounting hole 108 may also be implemented in other manners, for example, different colors may be adopted to set the first fitting surface upright column 110 and the second fitting surface upright column 112, the color of the first mounting hole 106 may correspond to the color of the first fitting surface upright column 110, the color of the second mounting hole 108 may correspond to the color of the second fitting surface upright column 112, and the like.
According to an embodiment of the present invention, a first nail placing hole 126 penetrating the first mounting hole 106 is formed in the first mounting hole 106 in the axial direction of the first mounting hole 106; a second nail placing hole 128 extending in the axial direction of the second mounting hole 108 and penetrating the thickness direction of the pressing crank arm 102 is formed at the second end of the pressing crank arm 102.
A bone screw (not shown) can be inserted through and guided into the afflicted site by providing a first screw placement hole 126 in the first mounting hole 106 and a second screw placement hole 128 at the second end of the pressing crank 102. Through the arrangement of the first nail placing hole 126 and the second nail placing hole 128, the knee joint replacement bone cutting guide plate can be conveniently fixed to a patient position through bone nails.
Note that the axial direction of the first nail placing hole 126 coincides with the axial direction of the first mounting hole 106, and the axial direction of the second nail placing hole 128 is parallel to the axial direction of the second mounting hole 108.
According to an embodiment of the present invention, a cutout groove 130 is formed in the pressing crank arm 102 in the axial direction of the first mounting hole 106 and/or the second mounting hole 108 so as to penetrate the thickness direction of the pressing crank arm 102.
Referring to fig. 1 to 7, at the first end and the second end of the pressing crank arm 102, there are formed osteotomy grooves 130 extending in the axial direction of the first mounting hole 106 and the axial direction of the second mounting hole 108, respectively, and penetrating the pressing crank arm 102. The osteotomy groove 130 is formed on the pressing crank arm 102, so that the osteotomy surface of the patient at the affected position can be determined, and then the osteotomy piece is inserted into the osteotomy groove 130, so that the bone with a specific thickness and an angle can be resected.
According to an embodiment of the invention, gripping structures 132 are formed on the surface of the pressing crank 102 facing away from the centre of bending and/or on the surface of the abutment table 104 facing away from the first mounting hole 106 to increase the friction.
Through set up the structure 132 of snatching at the surface that presses crank arm 102 to deviate from the bending center and the surface that butt joint platform 104 deviates from first mounting hole 106, can make things convenient for medical personnel in the in-process of operating this knee joint replacement bone cutting guide, it is more stable to snatch of this knee joint replacement bone cutting guide. Additionally, a friction enhancing coating may be provided on the surface of the gripping structure 132.
In summary, according to the knee joint replacement osteotomy guide plate provided by the embodiment of the invention, the first fitting surface upright 110 and/or the second fitting surface upright 112 are formed by using a 3D printing technology, the main frame 100 can be prepared in a conventional manner, and then the 3D printed first fitting surface upright 110 and/or the second fitting surface upright 112 are assembled with the main frame 100, so that the structural strength of the knee joint replacement osteotomy guide plate can be greatly improved, the structural design is optimized, redundant parts are removed, the structure of the knee joint replacement osteotomy guide plate is simple, and the surgical field is maximally exposed. Meanwhile, the first fitting surface upright column 110 and/or the second fitting surface upright column 112 are/is prepared only through a 3D printing technology, so that printing consumables can be greatly reduced, and the economical efficiency of the printing consumables is improved. In addition, only with body frame 100 adoption metal material preparation, can guarantee that body frame 100 can adapt to multiple sterilization mode, the structure is more stable, can reduce because the structure precision error that the sterilization caused.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A knee replacement osteotomy guide, comprising:
a main frame (100) provided with mounting holes;
the fitting surface upright post is detachably arranged in the mounting hole, and the fitting surface upright post is printed into fitting surface upright posts with different specifications through 3D according to different patient positions;
the main frame (100) comprises a pressing crank arm (102) and an abutting table (104), and the mounting holes comprise a first mounting hole (106) and a second mounting hole (108);
the first end of the pressing crank arm (102) is provided with the first mounting hole (106), the second end of the pressing crank arm (102) is connected with the abutting table (104), and the second mounting hole (108) is formed in one side, facing the first mounting hole (106), of the abutting table (104);
the fitting surface upright columns comprise a first fitting surface upright column (110) and a second fitting surface upright column (112), and the first fitting surface upright column (110) is connected with the first mounting hole (106) and the second fitting surface upright column (112) is connected with the second mounting hole (108) through clamping structures;
the clamping structure comprises a first clamping block (114) and a second clamping block (116) which are mutually clamped and matched,
in the first group of clamping structures, the first fixture block (114) is arranged on one of the first fitting surface upright post (110) and the first mounting hole (106), and the second fixture block (116) is arranged on the other one of the first fitting surface upright post (110) and the first mounting hole (106);
in the second group of clamping structures, the first clamping block (114) is arranged on one of the second fitting surface upright post (112) and the second mounting hole (108), and the second clamping block (116) is arranged on the other one of the second fitting surface upright post (112) and the second mounting hole (108);
a first nail placing hole (126) penetrating through the first mounting hole (106) is formed in the first mounting hole (106) along the axial direction of the first mounting hole (106).
2. The knee replacement osteotomy guide of claim 1, wherein a bore sidewall of said first mounting bore (106) is formed with a first deformation (118) adapted to be deformed, said first detent (114) or said second detent (116) being disposed at an end of said first deformation (118) proximate to an end surface of said first mounting bore (106);
the hole side wall of the second mounting hole (108) is formed with a second deformation part (120) suitable for deformation, and the first fixture block (114) or the second fixture block (116) is arranged at one end of the second deformation part (120) close to the end face of the second mounting hole (108).
3. The knee replacement osteotomy guide of claim 1, wherein said first fitting surface upright (110) is formed at one end with a first mounting head (122), said first cartridge (114) or said second cartridge (116) being formed at a sidewall of said first mounting head (122);
one end of the second fitting surface upright post (112) is provided with a second mounting head (124), and the first fixture block (114) or the second fixture block (116) is formed on the side wall of the second mounting head (124).
4. The knee replacement osteotomy guide of claim 3, wherein said first mounting hole (106) is one of a regular hole and a profiled hole, said first mounting head (122) having a shape adapted to a shape of said first mounting hole (106);
the second mounting hole (108) is the other of a regular hole and a special-shaped hole, and the shape of the second mounting head (124) is matched with the shape of the second mounting hole (108).
5. The knee replacement osteotomy guide of claim 1, wherein a second nail placement hole (128) is formed at a second end of said pressing crank arm (102), extending in an axial direction of said second mounting hole (108), and penetrating a thickness direction of said pressing crank arm (102).
6. The knee replacement osteotomy guide of claim 1, wherein said compression curved arm (102) is formed with a osteotomy slot (130) extending through a thickness direction of said compression curved arm (102) in an axial direction of said first mounting hole (106) and/or in an axial direction of said second mounting hole (108).
7. The knee replacement osteotomy guide of any one of claims 1-4, wherein gripping structures (132) are formed on a surface of said pressing crank arm (102) facing away from a center of curvature and/or a surface of said abutment table (104) facing away from said first mounting hole (106) for increasing friction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110286359.XA CN113081157B (en) | 2021-03-17 | 2021-03-17 | Knee joint replacement cuts bone baffle |
| PCT/CN2022/076971 WO2022193904A1 (en) | 2021-03-17 | 2022-02-18 | Knee joint replacement intelligent navigation guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110286359.XA CN113081157B (en) | 2021-03-17 | 2021-03-17 | Knee joint replacement cuts bone baffle |
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| Publication Number | Publication Date |
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| CN113081157A CN113081157A (en) | 2021-07-09 |
| CN113081157B true CN113081157B (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110286359.XA Active CN113081157B (en) | 2021-03-17 | 2021-03-17 | Knee joint replacement cuts bone baffle |
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| Country | Link |
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| CN (1) | CN113081157B (en) |
| WO (1) | WO2022193904A1 (en) |
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|---|---|---|---|---|
| CN113081157B (en) * | 2021-03-17 | 2022-02-08 | 北京长木谷医疗科技有限公司 | Knee joint replacement cuts bone baffle |
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2021
- 2021-03-17 CN CN202110286359.XA patent/CN113081157B/en active Active
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- 2022-02-18 WO PCT/CN2022/076971 patent/WO2022193904A1/en active Application Filing
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| CN205795767U (en) * | 2016-05-26 | 2016-12-14 | 中国人民解放军第三军医大学第二附属医院 | Femur osteotomy locating template and osteotomy device |
| CN106821454A (en) * | 2017-04-17 | 2017-06-13 | 北京大学第三医院 | A kind of femur osteotomy instrument kit |
| CN210277276U (en) * | 2019-05-17 | 2020-04-10 | 上海科太迈迪医疗器械有限公司 | Quick-connection type tibia filling block osteotome |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022193904A1 (en) | 2022-09-22 |
| CN113081157A (en) | 2021-07-09 |
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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: Changmugu medical technology (Qingdao) 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: Changmugu medical technology (Qingdao) Co.,Ltd. Patentee before: Zhang Yiling |
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