CN113729846A - Knee joint cuts bone baffle - Google Patents
Knee joint cuts bone baffle Download PDFInfo
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- CN113729846A CN113729846A CN202110978083.1A CN202110978083A CN113729846A CN 113729846 A CN113729846 A CN 113729846A CN 202110978083 A CN202110978083 A CN 202110978083A CN 113729846 A CN113729846 A CN 113729846A
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 94
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 55
- 238000005520 cutting process Methods 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims description 39
- 210000003127 knee Anatomy 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 17
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- 230000008569 process Effects 0.000 description 12
- 230000001788 irregular Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
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- 239000007787 solid Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000012937 correction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 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
- A61B17/16—Instruments for performing osteoclasis; 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; 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
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Abstract
The application discloses knee joint cuts bone conduction board. The knee joint cuts bone conduction board includes: a bone fitting surface, a dorsal bone surface, a bone cutting positioning groove and a bone cutting piece; the bone-cutting positioning groove is formed in the bone-cutting positioning groove, and the bone-cutting positioning groove is used for allowing a bone-cutting saw blade to be inserted. The technical problem that a bone cutting groove generates chippings or deformation in the bone cutting process of the knee joint bone cutting guide plate in the related technology is solved.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a knee joint osteotomy guide plate.
Background
The knee joint bone cutting guide plate is an auxiliary tool for operation, 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:
due to the limitation of 3D printing materials, a small amount of allowance is left in the positioning hole design, a self-propelled through hole is still needed even after the positioning hole is formed, and the problem of abrasion with a guide plate positioning hole still exists in the nailing process in the operation, so that the operation effect is seriously influenced by generated scraps;
during sterilization, due to the characteristics of printing materials, some key parts can deform due to the change of physical environment, so that the positioning effect in the operation is reduced;
due to the characteristics of materials, when a nail is nailed in an operation, the nail cannot play a role in guiding due to vibration and errors of manual operation, and the accuracy of the guide plate is influenced;
due to the characteristics of materials, no matter errors caused by vibration or manual errors are caused in the process that the saw blade swings in the osteotomy slot in the operation, the generation of chippings in the osteotomy slot and even slight deformation are always caused, and the osteotomy effect in the operation is seriously influenced;
aiming at the problem that the osteotomy groove generates fragments or deformation in the osteotomy process of the knee joint osteotomy guide plate in the related art, no effective solution is provided at present.
Disclosure of Invention
The main purpose of this application is to provide a knee joint cuts bone conduction board to solve the knee joint cuts bone conduction board among the relevant art and cut the bone groove and produce the problem of piece or deformation in the process of cutting the bone.
In order to achieve the above object, the present application provides a knee osteotomy guide.
The knee joint osteotomy guide according to the present application comprises: a bone fitting surface, a dorsal bone surface, a bone cutting positioning groove and a bone cutting piece;
the bone-cutting positioning groove is formed in the bone-cutting positioning groove, and the bone-cutting positioning groove is used for allowing a bone-cutting saw blade to be inserted.
Optionally, the osteotomy member has a material hardness and strength greater than or equal to a material hardness and strength of the osteotomy positioning slot.
Optionally, still include elastic expansion piece and locking piece, be equipped with first locking hole on the inner wall of osteotomy constant head tank, be equipped with on the outer wall of osteotomy piece with the second locking hole that first locking hole link up, elastic expansion piece is located in the first locking hole, the lower extreme of locking piece is located in the first locking hole, and with elastic expansion piece links to each other, elastic expansion piece sets up to incite somebody to action the upper end of locking piece is impressed in the second locking hole, so that the upper end joint of locking piece is in the second locking hole.
Optionally, when the osteotomy member is not installed in the osteotomy positioning groove, the upper end of the locking member is exposed out of the first locking hole under the support of the elastic telescopic member, and a portion of the locking member exposed out of the first locking hole is convexly curved.
Optionally, the locking member is a steel ball.
Optionally, the bone-adhering device further comprises a positioning hole and a guide pillar, the positioning hole penetrates through the bone-adhering fitting surface and the dorsal bone surface, the guide pillar is fixed in the positioning hole, a guide nail hole for guiding a bone nail is formed in the guide pillar, and the hardness of the material of the guide pillar is greater than that of the material forming the positioning hole.
Optionally, the material of the osteotomy piece, the guide post, each comprise a metal.
Optionally, the guide post is a quincunx guide post, and the positioning hole is a quincunx positioning hole matched with the quincunx guide post.
Optionally, the knee osteotomy guide further comprises a slot through said bone apposition face and said dorsal aspect for placement of a sickle blade for measuring osteotomy volume.
Optionally, the knee joint osteotomy guide further comprises a force line identifier;
the force line identification part is arranged on the dorsal bone surface, a virtual identification line is limited or an entity identification line is arranged, and the projection of the virtual identification line or the entity identification line on a plane parallel to the force line of the knee joint is superposed with the projection of the force line of the knee joint on the plane so as to correct the fixed position of the fitting surface of the bone and the knee joint.
The application provides a knee joint cuts bone conduction board, through setting up: a bone fitting surface, a dorsal bone surface, a bone cutting positioning groove and a bone cutting piece; the bone-cutting fitting comprises a bone-cutting positioning groove, a bone-cutting piece, a knee joint, a back bone surface, a back bone positioning groove, a bone-cutting positioning groove and a bone-cutting groove, wherein the bone-cutting fitting surface is jointed with the knee joint, the back bone surface is opposite to the bone-cutting fitting surface, the bone-cutting positioning groove is communicated with the back bone surface and the bone-cutting fitting surface, the bone-cutting piece is fixed in the bone-cutting positioning groove, and the bone-cutting piece is provided with the bone-cutting groove for operating bone cutting. Like this, because osteotomy spare and baffle body are the components of a whole that can function independently design, so can be convenient for adopt different materials to make osteotomy spare and baffle body respectively, wherein, can set up the osteotomy groove that is used for the operation to cut the bone at the more greatly osteotomy spare of material hardness and intensity, will cut the bone spare again and fix in the osteotomy constant head tank of knee joint osteotomy baffle, because the material hardness and the intensity that constitute the osteotomy groove are bigger, make the saw bit at the in-process of cutting the inslot swing of bone in the art, the osteotomy groove is difficult for piece or deformation, effectively guaranteed the osteotomy effect. Further solves the technical problem that the osteotomy groove of the knee joint osteotomy guide plate in the related technology generates chippings or deformation in the osteotomy process.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is an exploded view of a knee osteotomy guide assembled to a knee model part according to an embodiment of the present application;
FIG. 2 is an exploded view from another perspective of a knee osteotomy guide assembled to a knee model part according to an embodiment of the present application;
FIG. 3 is a schematic view of a partial structure of a knee osteotomy guide assembled to a knee model part according to an embodiment of the present application;
FIG. 4 is a partial schematic view of a knee osteotomy guide assembled to a knee model part from another perspective according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of the use of a sickle blade in cooperation with a knee joint osteotomy guide assembled to a knee joint model part according to an embodiment of the present application;
FIG. 6 is a schematic view of a knee osteotomy guide assembled to a knee model part according to an alternative perspective of the use of a sickle blade in cooperation with the knee osteotomy guide.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," "secured," "sleeved," and "mounted" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 6, the present application provides a knee joint osteotomy guide plate, which includes a bone fitting surface 1, a dorsal bone surface 2, an osteotomy positioning groove 3 and an osteotomy member 4;
stick bone fitting surface 1 with the laminating of knee joint 5, back bone surface 2 is relative with stick bone fitting surface 1, cuts bone constant head tank 3 and link up back bone surface 2 and stick bone fitting surface 1, cuts bone 4 and fixes in cutting bone constant head tank 3, and cuts and be equipped with the bone groove 42 that cuts that is used for the operation to cut the bone on the bone 4.
The osteotomy guide plate of the embodiment is provided with an osteotomy part which is designed separately from a guide plate body (comprising a bone fitting surface, a dorsal bone surface, an osteotomy positioning groove and the like), and the osteotomy guide plate can realize positioning and osteotomy at the same time. Moreover, because the osteotomy part and the guide plate body are designed in a split manner, different materials can be conveniently adopted to respectively manufacture the osteotomy part and the guide plate body, wherein the osteotomy groove 42 for operating osteotomy can be arranged on the osteotomy part 4 with higher material hardness and strength, and then the osteotomy part 4 is fixed in the osteotomy positioning groove 3 of the knee joint osteotomy guide plate, and because the material hardness and the strength of the osteotomy groove 42 are higher, the osteotomy groove 42 is not easy to chip or deform in the process of swinging of the saw blade in the osteotomy groove 42 in the operation, and the osteotomy effect is effectively ensured.
Of course, in other embodiments, the bone-cutting element 4 and the guide body may be made of the same material, for example, the bone-cutting element 4 and the guide body may be made of a material having a higher hardness and strength. That is, the material hardness and strength of the osteotomy member 4 may be the same as the material and strength of the osteotomy positioning slot 3. The present embodiment does not limit the material of the osteotomy member 4 and the fence body.
Optionally, the osteotomy member 4 has a material hardness and strength greater than the material hardness and strength of the osteotomy positioning slot 3. Therefore, in the process that the osteotomy saw blade swings in the osteotomy groove 42 in the operation, the osteotomy groove 42 is not easy to deform or generate chippings, and the osteotomy effect is effectively ensured.
In an alternative embodiment, the material of the osteotomy 4 may comprise a metal, for example, the osteotomy 4 is made of a medical grade steel. No matter the osteotomy piece 4 of metal material is intensity or precision and all is superior to the fashioned integral type baffle of conventional 3D, can not produce the piece because of vibrations in the use, more can not cause the direction skew, and is better to the guide effect of osteotomy saw bit.
Wherein, the outer wall of osteotomy 4 is the same with the inner wall shape of osteotomy constant head tank 3, and the outer wall of osteotomy 4 is laminated on the inner wall of osteotomy constant head tank 3 to be convenient for the assembly of osteotomy 4.
As shown in fig. 1 to 3, optionally, the knee joint osteotomy guide plate provided in the embodiment of the present application further includes an elastic telescopic member 6 and a locking member 7, a first locking hole 31 is provided on an inner wall of the osteotomy positioning groove 3, a second locking hole 41 penetrating through the first locking hole 31 is provided on an outer wall of the osteotomy member 4, the elastic telescopic member 6 is located in the first locking hole 31, a lower end of the locking member 7 is located in the first locking hole 31 and connected to the elastic telescopic member 6, and the elastic telescopic member 6 is configured to press an upper end of the locking member 7 into the second locking hole 41, so that the upper end of the locking member 7 is clamped in the second locking hole 41.
Specifically, through elastic telescopic piece 6 and locking piece 7, and the second locking hole 41 that sets up on the first locking hole 31 that sets up on the inner wall of osteotomy constant head tank 3 and the outer wall of osteotomy 4 can be with cutting bone 4 stable fixation in osteotomy constant head tank 3, make the saw bit at the intraoperative oscillating in-process in osteotomy groove 42, cut bone 4 can not take place the offset because of the swing of saw bit, make the osteotomy more smooth, the effect is more accurate.
The elastic expansion piece 6 may be a spring or other component with elastic deformation function.
As shown in fig. 1 to 3, alternatively, when the osteotomy member 4 is not installed in the osteotomy positioning groove 3, the upper end of the locking member 7 is exposed out of the first locking hole 31 under the support of the elastic telescopic member 6, and the portion of the locking member 7 exposed out of the first locking hole 31 is shaped in a convex curved surface.
Specifically, by adopting the compression fit of the elastic expansion piece 6 and the locking piece 7, the bone cutting piece 4 firstly extrudes the part of the locking piece 7 exposed out of the first locking hole 31 in the process of inserting the bone cutting piece 4 into the bone cutting positioning groove 3, and the part is in a convex curved surface shape, so that the locking piece 7 compresses the elastic expansion piece 6, and then, as the bone cutting piece 4 is further inserted into the bone cutting positioning groove 3, the locking piece 7 completely enters the first locking hole 31, and when the second locking hole 41 of the bone cutting piece 4 is aligned with the first locking hole 31, the elastic expansion piece 6 extrudes the locking piece 7 into the second locking hole 41, so that the positioning effect is achieved.
Wherein, convex surface can the sphere, and locking piece 7 can be the steel ball.
Wherein, the shape of the inner wall of the second locking hole 41 may be the same as the structure of the upper end of the locking member 7, so that the upper end of the locking member 7 is closely fitted in the second locking hole 41.
As shown in fig. 1 to 3, optionally, the knee joint osteotomy guide plate according to the embodiment of the present application further includes a positioning hole 8 and a guide post 9, the positioning hole 8 penetrates through the bone-fitting surface 1 and the dorsal surface 2, the guide post 9 is fixed in the positioning hole 8, a guide pin hole for guiding a bone pin is provided on the guide post 9, and a hardness of a material of the guide post 9 is greater than a hardness of a material constituting the positioning hole 8.
The knee joint cuts bone conduction board body that this application embodiment provided can adopt conventional 3D to print, satisfies the individualized demand of different patients, and the nail hole adopts guide pillar 9 that is located positioning hole 8 to lead, and the material hardness of guide pillar 9 is greater than and constitutes the material hardness of positioning hole 8, guide pillar 9 can adopt metal material to prepare, for example, adopt medical steel preparation, and metal material can not produce the piece in the use, also can not warp when the sterilization, has played fine guide effect more when the art nailing, ensures that the location is more accurate in the art, but from making this knee joint cut bone conduction board mass production, satisfies more technological requirements, and the precision is more accurate. The combination of the positioning holes 8 and the guide pillars 9 made of metal materials meets the individual requirements of different patients and also meets the batch production of key parts.
The positioning hole 8 can be a regular hole or a special-shaped hole, and the shape of the guide post 9 is matched with the shape of the positioning hole 8. For example, the positioning holes may be regular holes such as circular holes, square holes, or quincunx holes, and the irregular holes refer to irregular shapes other than regular shapes.
As shown in fig. 1 to 3, the guide posts 9 are quincunx guide posts 9, and the positioning holes 8 are quincunx positioning holes 8 matched with the quincunx guide posts.
As shown in fig. 1 to 3, optionally, the knee joint osteotomy guide provided in the embodiment of the present application further includes a force line identifier;
the force line identification part is arranged on the dorsal bone surface 2, and a virtual identification line is limited or an entity identification line is arranged, that is, the identification line can be a virtual identification line which is limited by the force line identification part 3 and is not shown, or can be an entity identification line which is carved on the force line identification part 3, or the force line identification part 3 is the entity identification line which is carved on the dorsal bone surface 2. The projection of the virtual marking line or the solid marking line on the plane parallel to the force line of the knee joint 5 is superposed with the projection of the force line of the knee joint 5 on the plane so as to correct the fixed position of the fitting surface 1 of the bone and the knee joint 5.
Specifically, when the knee joint osteotomy guide plate is placed at the position corresponding to the knee joint 5, whether the fitting surface 1 of the bone is accurately placed at the fixed position of the knee joint 5 can be determined by observing whether the projection of the virtual identification line or the entity identification line arranged on the dorsal bone surface 2 on the plane parallel to the force line of the knee joint 5 is superposed with the projection of the force line of the knee joint 5 on the plane, and when the projection of the virtual identification line or the entity identification line on the plane parallel to the force line of the knee joint 5 is superposed with the projection of the force line of the knee joint 5 on the plane, the fitting surface 1 of the bone can be determined to be accurately placed at the fixed position corresponding to the knee joint 5.
Alternatively, the force line markings may be grooves 11 or protrusions provided on the dorsal aspect 2.
The force line identification part can be formed by a groove 11 or a protrusion, specifically, the force line identification part is provided with a solid identification line which can be independently depicted on the groove 11 or the protrusion, or the force line identification part is limited to be formed by a virtual axis of the groove 11 or the protrusion. The groove 11 or the bulge is easier to observe relative to the line, so that a doctor can know the approximate position of the force line identification part in time.
The shape of the force line identification part can be regular or irregular, for example, the projection shape of the force line identification part on the plane perpendicular to the virtual identification line or the solid identification line is regular such as arc, V, square, trapezoid, etc. It is understood that a shaped refers to an irregular shape as opposed to a regular shape.
For example, the projection of the force line identifier on a plane perpendicular to the virtual identifier line or the physical identifier line may be an arc, and the virtual axis of the force line identifier is the virtual identifier line.
For another example, the force line indicator may be a V-shaped groove, that is, the projection of the force line indicator on a plane perpendicular to the virtual indicator line or the physical indicator line is a V-shape, and the intersection line defined by the intersection of two sides of the V-shaped force line indicator 3 forms the virtual indicator line.
In some embodiments, the knee joint osteotomy guide further comprises a corrector member (not shown) and a force line hole 10 disposed on said osteotomy member, the corrector member being mounted on said force line hole 8 to correct the fixation position of said fitting surface 1 to said knee joint 5 using the corrector member in cooperation with the force line indicator.
Specifically, the position of the correcting part is limited through the force line hole 10, and whether a force line passes through the force line identification part or not can be judged easily in the knee joint replacement surgery process through the correcting part, so that the accuracy of the surgery can be better guaranteed.
Alternatively, the number of the force line holes 10 is two, and the midpoint of the center connecting line of the two force line holes 10 is located on the virtual identification line or the physical identification line, so that the position of the correction member can be accurately defined.
Optionally, the correcting element comprises a force line rod and a handle, wherein one end of the handle, which faces the dorsal bone surface 2, is provided with two positioning rods in one-to-one correspondence with the two force line holes 10, the two positioning rods are respectively inserted into the two force line holes 10 in a corresponding manner, one end of the handle, which faces away from the dorsal bone surface 2, is provided with a guide hole, and the force line rod is installed on the guide hole, so that the projection of the central axis of the force line rod, which is parallel to the plane of the virtual identification line or the entity identification line, coincides with the projection of the virtual identification line or the entity identification line on the plane. Specifically, through inserting the handle in the corresponding line of force hole 10 to with the cooperation of line of force pole, can judge whether the line of force passes through virtual identification line or entity identification line, thereby the accuracy of better guarantee operation goes on.
As shown in fig. 4 to 6, optionally, the knee joint osteotomy guide provided in the embodiment of the present application further includes a slot 13 penetrating through the bone fitting surface 1 and the dorsal bone surface 2 for placing the sickle blade 12, so that a doctor can conveniently place the sickle blade 12 on the slot 13 during an operation to achieve an effect of intraoperatively referencing the osteotomy amount, thereby increasing the accuracy and safety of the osteotomy guide. In an embodiment of the present application, there is provided a knee joint osteotomy guide, which includes: the bone-adhering fitting surface 1, the dorsal bone surface 2, the osteotomy positioning groove 3 and the osteotomy part 4; stick with bone fitting surface 1 with the knee joint laminating, back bone surface 2 with stick with bone fitting surface 1 is relative, cuts bone constant head tank 3 and link up back bone surface 2 with stick with bone fitting surface 1, cut bone 4 and fix cut in the bone constant head tank 3, and cut and be equipped with the bone groove 42 that cuts that is used for the operation to cut the bone on the bone 4. Like this, because osteotomy spare and baffle body are the components of a whole that can function independently design, can be so convenient for adopt different materials to make osteotomy spare and baffle body respectively, wherein, can set up the osteotomy groove 42 that is used for operating the osteotomy at the osteotomy spare 4 that material hardness and intensity are bigger, fix osteotomy spare 4 in the osteotomy constant head tank 3 of knee joint osteotomy baffle, because the material hardness and the intensity that constitute osteotomy groove 42 are bigger for in the in-process of saw bit swing in osteotomy groove 42 in the art, osteotomy groove 42 is difficult for chipping or deformation, has effectively guaranteed the osteotomy effect. Thereby solving the technical problem that the osteotomy groove 42 generates chippings or deformation in the osteotomy process of the knee joint osteotomy guide plate in the related technology.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A knee osteotomy guide, comprising: a bone fitting surface, a dorsal bone surface, a bone cutting positioning groove and a bone cutting piece;
the bone-cutting positioning groove is formed in the bone-cutting positioning groove, and the bone-cutting positioning groove is used for allowing a bone-cutting saw blade to be inserted.
2. The knee osteotomy guide of claim 1, wherein said osteotomy member has a material hardness and strength that are each greater than or equal to a material hardness and strength of said osteotomy positioning slot.
3. The knee joint osteotomy guide of claim 1, further comprising an elastic telescopic member and a locking member, wherein a first locking hole is formed in an inner wall of the osteotomy positioning groove, a second locking hole penetrating the first locking hole is formed in an outer wall of the osteotomy member, the elastic telescopic member is located in the first locking hole, a lower end of the locking member is located in the first locking hole and connected with the elastic telescopic member, and the elastic telescopic member is configured to press an upper end of the locking member into the second locking hole so that the upper end of the locking member is clamped in the second locking hole.
4. The knee joint osteotomy guide of claim 3, wherein an upper end of said locking member is exposed out of said first locking hole with support of said resilient telescoping member when said osteotomy member is not mounted in said osteotomy positioning slot, and a portion of said locking member exposed out of said first locking hole is convexly curved in shape.
5. The knee osteotomy guide of claim 4, wherein said locking element is a steel ball.
6. The knee joint osteotomy guide of claim 1, further comprising a positioning hole and a guide post, wherein said positioning hole penetrates said bone apposition surface and said dorsal surface, said guide post is fixed in said positioning hole, said guide post is provided with a guide pin hole for guiding a bone pin, and a hardness of a material of said guide post is greater than a hardness of a material constituting said positioning hole.
7. The knee osteotomy guide of claim 6, wherein said osteotomy member, said guide post material each comprise a metal.
8. The knee osteotomy guide of claim 6, wherein said guide post is a quincunx guide post and said alignment hole is a quincunx alignment hole adapted to said quincunx guide post.
9. The knee osteotomy guide of claim 1 further comprising a slot through said bone apposition surface and said dorsal aspect for placement of a sickle blade for measuring osteotomy volume.
10. The knee osteotomy guide of claim 1, further comprising a force line identifier;
the force line identification part is arranged on the dorsal bone surface, a virtual identification line is limited or an entity identification line is arranged, and the projection of the virtual identification line or the entity identification line on a plane parallel to the force line of the knee joint is superposed with the projection of the force line of the knee joint on the plane so as to correct the fixed position of the fitting surface of the bone and the knee joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114886500A (en) * | 2022-04-15 | 2022-08-12 | 福州大学 | Osteotomy device for knee joint replacement in medial femoral muscle inferior approach |
| CN115624366A (en) * | 2022-09-21 | 2023-01-20 | 北京长木谷医疗科技有限公司 | Detection system, method and device for positioning tool for knee joint replacement |
| WO2023221640A1 (en) * | 2022-05-19 | 2023-11-23 | 北京长木谷医疗科技有限公司 | Steel groove embedded knee joint osteotomy positioning and guiding system and press fit system, and method thereof |
| CN117257388A (en) * | 2023-11-23 | 2023-12-22 | 北京爱康宜诚医疗器材有限公司 | Osteotomy guide plate device |
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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 |
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