CN111166454A - Tibia near-end inner special-shaped block - Google Patents
Tibia near-end inner special-shaped block Download PDFInfo
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- CN111166454A CN111166454A CN201911370293.1A CN201911370293A CN111166454A CN 111166454 A CN111166454 A CN 111166454A CN 201911370293 A CN201911370293 A CN 201911370293A CN 111166454 A CN111166454 A CN 111166454A
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- locking screw
- inclination angle
- fixing
- screw hole
- hole
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
Abstract
The embodiment of the invention relates to a proximal tibia inner special-shaped block, which is of a plate-shaped structure and specifically comprises: first fixed part and second fixed part, first fixed part and second fixed part are connected: the inner surface of the first fixing part is an arc surface; the first fixing portion includes: the front side top locking screw hole is positioned at the front side position of the top of the first fixing part; the middle position top locking screw hole is positioned in the middle position of the top of the first fixing part; the rear top locking screw hole is positioned at the rear side of the top of the first fixing part; a lower locking screw hole located at the lower part of the first fixing part; the second fixing portion includes: the fixing screw hole is positioned on the surface of the second fixing part; the front side connecting round hole is positioned at the front side position of the side surface of the second fixing part; the rear side connecting round hole is located at the rear side of the side face of the second fixing portion.
Description
Technical Field
The invention relates to the field of orthopedic medical instruments, in particular to a special-shaped block for the inner side of the proximal tibia.
Background
At present, the fixing plate for treating the tibial fracture is mostly in a flat T-shaped structure; when in use, the T-shaped bone plate is locked and fixed on the affected part by matching with a plurality of bone nails.
Shin bone fracture is one of them type, especially to serious comminuted fracture, need implant metal fixing plate and fix the shin bone at shin bone operation repair in-process, current fixed plate comprises the polylith, it is used for the bolt fastening to open porosely above every piece, the shape of fixed plate is also produced well in advance, but patient's shin bone shape is different, the damage degree is inconsistent, when utilizing current fixed plate to fix the shin bone, the laminating degree is poor unavoidably, when using polylith fixed plate to fix, the operation degree of difficulty has been increased, the operation time has been prolonged.
Disclosure of Invention
The invention aims to provide a tibia near-end inner special-shaped block which is light in design, integrally formed and designed, forms an integrally stable frame structure with a mounting component or a related product, and achieves the purposes of multi-point fixation, spherical contact and convenient attachment and fixation.
In order to achieve the above object, the present invention provides a proximal tibia inside special-shaped block, wherein the proximal tibia inside special-shaped block is a plate-shaped structure, and the proximal tibia inside special-shaped block specifically includes: first fixed part and second fixed part, first fixed part and second fixed part are connected:
the inner surface of the first fixing part is an arc-shaped surface, is matched with the curved surface at the upper end of the inner side of the tibia and is used for fixing the inner side of the tibia; the first fixing portion includes:
the front side top locking screw hole is positioned at the front side position of the top of the first fixing part, when a first locking screw penetrates through the front side top locking screw hole, a first upper screwing part of the first locking screw is in screwed connection with the front side top locking screw hole, and a normal vertical direction inclination angle of a plane where the first locking screw and the second fixing part are positioned is a first vertical inclination angle; the normal horizontal direction inclination angle of the plane where the first locking screw and the second fixing part are located is a first horizontal inclination angle;
a middle position top locking screw hole which is positioned in the middle position of the top of the first fixing part, after a second locking screw penetrates through the middle position top locking screw hole, a second upper screwing part of the second locking screw is in screwed connection with the middle position top locking screw hole, and the normal vertical direction inclination angle of the plane where the second locking screw and the second fixing part are positioned is a second vertical inclination angle; the normal horizontal direction inclination angle of the plane where the second locking screw and the second fixing part are located is a second horizontal inclination angle;
a rear top locking screw hole located at the rear side of the top of the first fixing part, wherein when a third locking screw penetrates through the rear top locking screw hole, a third upper screwing part of the third locking screw is screwed with the rear top locking screw hole, and a normal vertical direction inclination angle of a plane where the third locking screw and the second fixing part are located is a third vertical inclination angle; the normal horizontal direction inclination angle of the plane where the first locking screw and the second fixing part are located is a third horizontal inclination angle; the third vertical tilt angle is equal to the second vertical tilt angle;
a lower locking screw hole located at the lower part of the first fixing part;
the second fixing portion includes:
the fixing screw hole is positioned on the surface of the second fixing part;
the front side connecting round hole is positioned at the front side position of the side surface of the second fixing part, and the aperture of the front side connecting round hole is a first aperture;
the rear side connecting round hole is positioned at the rear side of the side surface of the second fixing part, and the diameter of the rear side connecting round hole is a second diameter;
the first connecting rod is inserted into the front side connecting circular hole, the second connecting rod is inserted into the rear side connecting circular hole, when the fourth locking screw penetrates through the fixing screw hole, the fourth upper screwing part of the fourth locking screw is in screwed connection with the fixing screw hole, so that the front side connecting circular hole and the rear side connecting circular hole are extruded, and the first connecting rod and the second connecting rod are fixedly connected with the second fixing part.
Preferably, the first vertical inclination angle range is 3-6 degrees, the second vertical inclination angle range is 2-5 degrees, and the third vertical inclination angle range is 2-5 degrees.
Preferably, the first horizontal inclination angle range is 6-9 degrees, the second horizontal inclination angle range is 6-9 degrees, and the third horizontal inclination angle range is 8-11 degrees.
Preferably, the second horizontal inclination angle is equal to the first horizontal inclination angle.
Preferably, the curvature radius of the bottom edge of the horizontal section at the top of the first fixing part is R1, and the value range of R1 is 28-33 mm;
the curvature radius of the bottom edge of a horizontal tangent plane between the top locking screw hole and the lower locking screw hole of the first fixing part is R2, and the value range of R2 is 75-80 mm.
Preferably, the first fixing part further comprises a positioning hole;
the positioning hole is used for temporarily fixing the tibia near-end inner special-shaped block in the operation process.
Preferably, the first aperture of the front side connecting circular hole and the second aperture of the rear side connecting circular hole are equal or different.
The special-shaped block at the inner side of the proximal tibia is light and convenient in design, has a plate-shaped structure, improves the stability of a fixing structure, realizes multi-point fixing and spherical contact, is convenient to attach and fix, and shortens rehabilitation time.
Drawings
Fig. 1 is a top view of a proximal medial tibial profile block provided in accordance with an embodiment of the present invention;
fig. 2 is a side view (one) of a proximal medial tibial profile block provided in accordance with an embodiment of the present invention;
fig. 3 is a side view (two) of the medial proximal tibial profile block provided by an embodiment of the present invention;
3 FIG. 3 4 3 is 3 a 3 cross 3- 3 sectional 3 view 3 of 3 portion 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3
FIG. 5 is a cross-sectional view of portion B-B of FIG. 1;
fig. 6 is a cross-sectional view of the portion C-C in fig. 1.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
The embodiment of the invention provides a special-shaped block on the inner side of the proximal tibia, which is applied to fixing of a fracture part in a tibial fracture operation.
Fig. 1 is a top view of a proximal medial tibial profile block provided in an embodiment of the present invention, and fig. 2 is a side view (one) of the proximal medial tibial profile block provided in an embodiment of the present invention; with reference to fig. 1 and 2, the proximal tibia inside special-shaped block according to the embodiment of the present invention is a plate-shaped structure, and specifically includes: a first fixing portion 51 and a second fixing portion 52.
The first fixing portion 51 and the second fixing portion 52 are connected and integrally formed.
Preferably, in this embodiment, the plane where the second fixing portion 52 is located is set as a first plane, a plane parallel to the horizontal direction of the normal of the first plane is set as a second plane, and a plane parallel to the vertical direction of the normal of the first plane is set as a third plane; in this embodiment, the vertical direction inclination angle of the normal direction of the plane where the locking screw and the second fixing portion 52 are located is a vertical inclination angle, and the vertical inclination angle is an included angle between the locking screw and the third plane; similarly, the horizontal direction inclination angle of the normal direction of the plane where the locking screw and the second fixing portion 52 are located is a horizontal inclination angle, and the horizontal inclination angle is an included angle between the locking screw and the second plane; the side of the first fixing portion 51 parallel to the short side of the proximal tibia shaped block is defined as the anterior side of the proximal tibia shaped block, extending from the long side to the short side, and the distal side of the short side of the first fixing portion 51 is defined as the posterior side of the proximal tibia shaped block.
First fixed part 51 surface is for having the arc curved surface of certain radian, is provided with a plurality of locking screws and round hole along first fixed part 51 minor face direction on the arc curved surface, and first fixed part 51 internal surface is the arc surface, with the curved surface looks adaptation of the inboard upper end of shin bone, first fixed part 51 is fixed in the inboard bone surface of shin bone through the fixed interlude of locking screw.
The first fixing portion 51 is provided at the top thereof with a front top locking screw hole 510, a middle top locking screw hole 511, a rear top locking screw hole 512, a lower locking screw hole 513 and a positioning hole 514 in order from the inside to the outside.
A front top locking screw hole 510 located at the front side of the top of the first fixing portion 51, the front top locking screw hole 610 being internally formed by an upper edge portion and a lower edge portion, the upper edge portion having a smooth curved surface, the lower edge portion having a fastening thread, the front top locking screw hole 510 being configured to attach and fix the inner surface edge of the first fixing portion 51 to the bone surface of the inner upper end of the tibia by a locking screw;
in a specific embodiment, after the first locking screw is inserted through the front side top locking screw hole 510, the first upper screw coupling portion of the first locking screw is screwed with the lower edge portion of the front side top locking screw hole 510, and as the first upper screw coupling portion is screwed with the fastening screw and bites, the screw cap portion of the first locking screw stays in the upper edge portion of the front side top locking screw hole 510, the screw shaft portion and the screw head portion of the first locking screw are respectively inserted into the bone through the front side top locking screw hole 510, and during the insertion, the first locking screw and the third plane form a first vertical inclination angle α ranging from 3 to 6 °, and the first locking screw and the second plane form a first horizontal inclination angle α' ranging from 6 to 9 °.
A middle position top locking screw hole 511 which is located at the middle position of the top of the first fixing portion 51 and is interposed between the front side top locking screw hole 510 and the rear side top locking screw hole 512, and similarly, the inside of the middle position top locking screw hole 511 and the inside of the front side top locking screw hole 510 have an upper edge portion and a lower edge portion, and the middle position top locking screw hole 511 has the same function as the front side top locking screw hole 510;
in a specific embodiment, after the second locking screw is inserted into the middle top locking screw hole 511, the second upper screw portion of the second locking screw is screwed with the lower edge portion of the middle top locking screw hole 511, and as the second upper screw portion is screwed with the fastening screw and bites, the cap portion of the second locking screw stays in the upper edge portion of the middle top locking screw hole 511, and the screw portion and the head portion of the second locking screw are inserted into the bone after passing through the middle top locking screw hole 511, respectively, the second locking screw and the third plane form a second vertical inclination angle β in the range of 2 to 5 °, and the second locking screw and the second plane form a second horizontal inclination angle β ', and the first horizontal inclination angle α' are the same.
A rear top locking screw hole 512 provided at a rear position of the top of the first fixing portion 51, and similarly, an inside of the rear top locking screw hole 512 has an upper edge portion and a lower edge portion as well as an inside of the front top locking screw hole 510, and the rear top locking screw hole 512 functions as the front top locking screw hole 510;
in a specific embodiment, after the third locking screw is inserted into the rear side top locking screw hole 512, a third upper screw-connecting portion of the third locking screw is screwed with a lower edge portion of the rear side top locking screw hole 512, and as the third upper screw-connecting portion is screwed with the fastening screw and bites, a screw cap portion of the third locking screw stays in the upper edge portion of the rear side top locking screw hole 512, a screw portion and a screw head portion of the third locking screw are inserted into the bone after passing through the rear side top locking screw hole 512, respectively, and during the insertion process, an inclination angle formed by the third locking screw and the third plane is a third vertical inclination angle γ, which is the same as the third vertical inclination angle β, and an inclination angle formed by the third locking screw and the second plane is a third horizontal inclination angle γ', which is in a range of 8 to 11 °.
the first vertical inclination angle α is greater than the second vertical inclination angle β and the third vertical inclination angle gamma as shown in fig. 2, and the third horizontal inclination angle gamma ' is greater than the first horizontal inclination angle α ' and the second horizontal inclination angle β ' as shown in fig. 3.
A lower locking screw hole 513 formed at a lower portion of the first fixing portion 51, and having an upper edge portion and a lower edge portion inside the lower locking screw hole 513 as well as inside the front side top locking screw hole 510, the lower locking screw hole 513 functioning as the front side top locking screw hole 510;
the lower locking screw hole 513 is used in conjunction with a locking screw in the same manner as the front top locking screw hole 510 is used in conjunction with a first locking screw and will not be described again.
The positioning hole 514 is formed by a circular hole, is located at the side of the top middle position of the first fixing portion 51 close to the front end of the first fixing portion 51, and specifically comprises a first positioning hole 5140 and a second positioning hole 5141; wherein the first positioning hole 5140 is located between the anterior top locking screw hole 510 and the medial top locking screw hole 511, the second positioning hole 5141 is located between the medial top locking screw hole 511 and the posterior top locking screw hole 512, the aperture of the positioning hole 514 is smaller than that of the locking screw hole, and the positioning hole 514 is used when the proximal medial tibial profile block is temporarily fixed during the surgical procedure.
FIG. 5 is a cross-sectional view of portion B-B of FIG. 1, and FIG. 6 is a cross-sectional view of portion C-C of FIG. 1; as shown in fig. 5 and 6, the curvature radius of the arc surface of the inner surface of the first fixing portion 51 extending from the top to the middle portion is gradually increased, and the curvature radius R of the bottom edge of the horizontal section of the top of the first fixing portion 51 is in a range of 28-33 mm; the radius of curvature R2 of the bottom edge of the horizontal section between the first oblique-insertion locking screw hole 513 and the lower locking screw hole 514 is 75-80 mm.
3 fig. 3 4 3 is 3 a 3 sectional 3 view 3 of 3 a 3 portion 3 a 3- 3 a 3 in 3 fig. 3 1 3, 3 and 3 as 3 shown 3 in 3 fig. 3 1 3 and 3 fig. 3 4 3, 3 an 3 outer 3 surface 3 of 3 the 3 second 3 fixing 3 portion 3 52 3 is 3 configured 3 as 3 an 3 arc 3- 3 shaped 3 curved 3 surface 3 having 3 a 3 certain 3 curvature 3, 3 two 3 adjacent 3 fixing 3 screw 3 holes 3 520 3 are 3 disposed 3 in 3 the 3 arc 3- 3 shaped 3 curved 3 surface 3 and 3 are 3 spaced 3 apart 3 from 3 each 3 other 3 at 3 a 3 certain 3 distance 3 along 3 a 3 long 3 axis 3 direction 3 of 3 the 3 second 3 fixing 3 portion 3 52 3, 3 the 3 fixing 3 screw 3 holes 3 520 3 are 3 specifically 3 composed 3 of 3 an 3 upper 3 edge 3 5201 3 and 3 a 3 lower 3 edge 3 5202 3, 3 a 3 surface 3 of 3 the 3 upper 3 edge 3 5201 3 is 3 a 3 smooth 3 curved 3 surface 3 and 3 is 3 matched 3 with 3 an 3 upper 3 screwing 3 portion 3 of 3 a 3 locking 3 screw 3, 3 a 3 surface 3 of 3 the 3 lower 3 edge 3 5202 3 is 3 provided 3 with 3 a 3 fastening 3 screw 3, 3 an 3 intermediate 3 groove 3 523 3 is 3 disposed 3 between 3 the 3 upper 3 edge 3 5201 3 and 3 the 3 lower 3 edge 3 5202 3, 3 and 3 an 3 aperture 3 of 3 the 3; 3 The inner surface of the second fixing part 52 is also provided with an arc-shaped curved surface with a certain radian at the part jointed with the tibia backbone, and the radian of the arc-shaped curved surface of the inner surface of the second fixing part 52 can be adapted according to different patients and different fracture parts, so that the special-shaped block at the inner side of the proximal end of the tibia is more jointed with the surface of the tibia; the lateral surfaces of the second fixing portion 52 are respectively provided with a front connecting circular hole 521 and a rear connecting circular hole 522, the front connecting circular hole 521 and the rear connecting circular hole 522 are arranged in parallel along the long axis direction of the second fixing portion 52 and are respectively located at two sides of the fixing screw hole 520, and the front connecting circular hole 521 and the rear connecting circular hole 522 are used for firmly connecting the connecting rod 2 with the tibia proximal inner special-shaped block through a locking screw.
A front side connecting circular hole 521 located at a front side position of a side surface of the second fixing portion 52, the diameter of the front side connecting circular hole 521 being a first diameter D1;
a rear connecting circular hole 522 located at a rear position of a side surface of the second fixing portion 52, the rear connecting circular hole 522 having a second aperture D2;
wherein the first aperture D1 is equal to or different from the second aperture D2, and the apertures of the front side connecting circular aperture 521 and the rear side connecting circular aperture 522 are configured differently for the purpose of being specifically designed to better conform to the shape and characteristics of the bones of the asian person.
The intersection of the front side connecting circular hole 521 and the rear side connecting circular hole 522 with the fixing screw hole 520 in the second fixing portion 52 has a cross hole 524, and the cross hole 524 is mainly used for pressing the connecting rod 2 by a locking screw, thereby realizing the fixing of the connecting rod 2 in the second fixing portion 52.
In a specific embodiment, the first connecting rod 20 is inserted into the front connecting circular hole 521, the second connecting rod 21 is inserted into the rear connecting circular hole 522, after two fourth locking screws are respectively inserted into two adjacent fixing screw holes 520, a fourth upper screw part of each fourth locking screw is screwed with a lower edge 5202 of the corresponding fixing screw hole 520, as the fourth upper screw part is screwed and gripped with the fastening screw, the gap of the middle groove 523 is further compressed, a screw cap part of each fourth locking screw stays in an upper edge 5201 of the corresponding fixing screw hole 520, the first connecting rod 20 and the second connecting rod 21 are fixedly connected with the second fixing part 52 through the cross hole 524 while the front connecting circular hole 521 and the rear connecting circular hole 522 are respectively pressed, and the screw head of each fourth locking screw are respectively inserted into the bone after passing through the corresponding fixing screw holes 520.
The above is a description of the components of the proximal medial tibial profile block and the connection relationship between them provided by the embodiment of the present invention, and the following is a detailed description of the usage of the proximal medial tibial profile block in conjunction with fig. 1 and 4;
when a doctor uses the special-shaped block on the inner side of the proximal tibia to fix a fracture part in a tibia fracture operation, the locking screw and the connecting rod 2 need to be matched for use. The process used in conjunction is described in detail below.
In a specific tibial fracture operation process, a doctor aligns and attaches the first fixing part 51 of the proximal tibia inner profile block with the bone surface of the upper end of the inner tibia, inserts locking screws into the front top locking screw hole 510, the middle top locking screw hole 511 and the rear top locking screw hole 512 respectively, inserts the upper screw part of the locking screw into the lower edge part of the locking screw hole after the locking screw is inserted into the locking screw hole, screws and bites the upper screw part with the fastening screw, the screw cap part of the locking screw stays in the upper edge part of the locking screw hole, the screw rod part and the screw head part of the locking screw are inserted into the bone after passing through the locking screw hole respectively, finally fixes the first fixing part 51 of the proximal tibia inner profile block on the bone surface of the outer side, inserts the first connecting rod 20 and the second connecting rod 21 into the front side connecting round hole 521 and the rear side connecting round hole 522 respectively, meanwhile, the locking screws are respectively arranged in two adjacent fixing screw holes 520 in a penetrating way, after the locking screws are arranged in the fixing screw holes 520 in a penetrating way, the upper screwing part of each locking screw is screwed with the lower edge 5202 of the corresponding fixing screw hole 520, along with the screwing and the fastening screw threads are screwed and bitten, the screw cap part of each locking screw stays in the upper edge 5201 of the corresponding fixing screw hole 520, the gap of the middle groove 523 is further compressed, the locking screws respectively press the front side connecting round hole 521 and the rear side connecting round hole 522 and simultaneously fixedly connect the first connecting rod 20 and the second connecting rod 21 with the second fixing part 52 through the cross holes 524, the screw rod part and the nail head part of each locking screw respectively penetrate through the corresponding fixing screw holes 520 and then are implanted into the bone, and the special-shaped inner side block of the proximal tibia is completely fixed.
The special-shaped block at the inner side of the proximal tibia is light and convenient in design, has a plate-shaped structure, improves the stability of a fixing structure, realizes multi-point fixing and spherical contact, is convenient to attach and fix, and shortens rehabilitation time.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a shin bone near-end inboard dysmorphism piece, its characterized in that, shin bone near-end inboard dysmorphism piece is platelike structure, shin bone near-end inboard dysmorphism piece specifically includes: first fixed part and second fixed part, first fixed part and second fixed part are connected:
the inner surface of the first fixing part is an arc-shaped surface, is matched with the curved surface at the upper end of the inner side of the tibia and is used for fixing the inner side of the tibia; the first fixing portion includes:
the front side top locking screw hole is positioned at the front side position of the top of the first fixing part, when a first locking screw penetrates through the front side top locking screw hole, a first upper screwing part of the first locking screw is in screwed connection with the front side top locking screw hole, and a normal vertical direction inclination angle of a plane where the first locking screw and the second fixing part are positioned is a first vertical inclination angle; the normal horizontal direction inclination angle of the plane where the first locking screw and the second fixing part are located is a first horizontal inclination angle;
a middle position top locking screw hole which is positioned in the middle position of the top of the first fixing part, after a second locking screw penetrates through the middle position top locking screw hole, a second upper screwing part of the second locking screw is in screwed connection with the middle position top locking screw hole, and the normal vertical direction inclination angle of the plane where the second locking screw and the second fixing part are positioned is a second vertical inclination angle; the normal horizontal direction inclination angle of the plane where the second locking screw and the second fixing part are located is a second horizontal inclination angle;
a rear top locking screw hole located at the rear side of the top of the first fixing part, wherein when a third locking screw penetrates through the rear top locking screw hole, a third upper screwing part of the third locking screw is screwed with the rear top locking screw hole, and a normal vertical direction inclination angle of a plane where the third locking screw and the second fixing part are located is a third vertical inclination angle; the normal horizontal direction inclination angle of the plane where the first locking screw and the second fixing part are located is a third horizontal inclination angle; the third vertical tilt angle is equal to the second vertical tilt angle;
a lower locking screw hole located at the lower part of the first fixing part;
the second fixing portion includes:
the fixing screw hole is positioned on the surface of the second fixing part;
the front side connecting round hole is positioned at the front side position of the side surface of the second fixing part, and the aperture of the front side connecting round hole is a first aperture;
the rear side connecting round hole is positioned at the rear side of the side surface of the second fixing part, and the diameter of the rear side connecting round hole is a second diameter;
the first connecting rod is inserted into the front side connecting circular hole, the second connecting rod is inserted into the rear side connecting circular hole, when the fourth locking screw penetrates through the fixing screw hole, the fourth upper screwing part of the fourth locking screw is in screwed connection with the fixing screw hole, so that the front side connecting circular hole and the rear side connecting circular hole are extruded, and the first connecting rod and the second connecting rod are fixedly connected with the second fixing part.
2. The medial proximal tibial profile block of claim 1, wherein said first vertical inclination angle is in the range of 3-6 °, said second vertical inclination angle is in the range of 2-5 °, and said third vertical inclination angle is in the range of 2-5 °.
3. The medial proximal tibial profile block of claim 1, wherein said first horizontal inclination angle is in the range of 6-9 °, said second horizontal inclination angle is in the range of 6-9 °, and said third horizontal inclination angle is in the range of 8-11 °.
4. The medial proximal tibial profile block of claim 1, wherein said second horizontal inclination angle is equal to said first horizontal inclination angle.
5. The proximal tibia inside special-shaped block as claimed in claim 1, wherein a curvature radius of a bottom edge of a horizontal tangent plane of a top portion of the first fixing portion is R1, and a value of R1 is in a range of 28-33 mm;
the curvature radius of the bottom edge of a horizontal tangent plane between the top locking screw hole and the lower locking screw hole of the first fixing part is R2, and the value range of R2 is 75-80 mm.
6. The proximal tibial medial profile block of claim 1, wherein said first fixation portion further comprises a positioning hole;
the positioning hole is used for temporarily fixing the tibia near-end inner special-shaped block in the operation process.
7. The proximal tibial medial profile block of claim 1, wherein said first aperture of said anterior connection round aperture and said second aperture of said posterior connection round aperture are equal or unequal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370293.1A CN111166454A (en) | 2019-12-26 | 2019-12-26 | Tibia near-end inner special-shaped block |
| PCT/CN2020/137879 WO2021129547A1 (en) | 2019-12-26 | 2020-12-21 | Special-shaped block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370293.1A CN111166454A (en) | 2019-12-26 | 2019-12-26 | Tibia near-end inner special-shaped block |
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| Publication Number | Publication Date |
|---|---|
| CN111166454A true CN111166454A (en) | 2020-05-19 |
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| CN201911370293.1A Pending CN111166454A (en) | 2019-12-26 | 2019-12-26 | Tibia near-end inner special-shaped block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129547A1 (en) * | 2019-12-26 | 2021-07-01 | 天津市威曼生物材料有限公司 | Special-shaped block |
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- 2019-12-26 CN CN201911370293.1A patent/CN111166454A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129547A1 (en) * | 2019-12-26 | 2021-07-01 | 天津市威曼生物材料有限公司 | Special-shaped block |
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