CN211325504U - Proximal tibia lateral special-shaped block - Google Patents
Proximal tibia lateral special-shaped block Download PDFInfo
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- CN211325504U CN211325504U CN201922386887.3U CN201922386887U CN211325504U CN 211325504 U CN211325504 U CN 211325504U CN 201922386887 U CN201922386887 U CN 201922386887U CN 211325504 U CN211325504 U CN 211325504U
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Abstract
The utility model relates to a shin bone near-end outside dysmorphism piece, shin bone near-end outside dysmorphism piece are platelike structure, and shin bone near-end outside 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 surface; the top of the first fixing part is provided with a first top locking screw hole, a second top locking screw hole, a third top locking screw hole and a fourth top locking screw hole in sequence from the inner side to the outer side; the middle part of the first fixing part is provided with a first middle locking screw hole, a second middle locking screw hole and a third middle locking screw hole in sequence from the inner side to the outer side; the first inclined insertion locking screw hole is positioned 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 screw hole is positioned at the front side position of the side surface of the second fixing part; the rear side is connected the screw, is located the rear side position of second fixed part side.
Description
Technical Field
The utility model relates to an orthopedics medical instrument field especially relates to a shin bone near-end outside dysmorphism piece.
Background
The method for providing treatment and rehabilitation of fracture usually requires appropriate treatment according to the bone structure of the injured part, and when the fracture part is close to the joint, plaster fixation is not suitable, and a bone fixing plate and bone nails are usually used as instruments for fixing the fracture.
The existing tibial fracture fixing mode is to indirectly reset bones and then indirectly fix the bones by using a bone fixing plate, but the resetting or fixing effect is poor and the operation time is long; after the operation is recovered, the fracture part is easy to shift due to insufficient fixing force; in addition, the conventional bone fixation plate needs to be completely attached to the bone and depends on the friction force between the bone plate and the bone to achieve the fixation effect, but the fixation mode can cause poor blood transportation at the fracture part due to the locking of the periosteum, and can also cause slow healing or other complications at the postoperative fracture part. The post-operative recovery effect may also present a poor condition.
Disclosure of Invention
The utility model aims at providing a shin bone near-end outside dysmorphism piece, the fixed more firm of multiple spot interlocking structure of dysmorphism piece self to no longer rely on with the skeleton within a definite time frictional force, attached effect is better, and the parcel scope is bigger and provide reliable support, can also alleviate patient's uncomfortable sense.
In order to achieve the above object, the utility model provides a shin bone near-end outside dysmorphism piece, shin bone near-end outside dysmorphism piece is platelike structure, shin bone near-end outside 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 outer side of the tibia and is used for being fixed on the outer side of the tibia;
the top of the first fixing part is provided with a first top locking screw hole, a second top locking screw hole, a third top locking screw hole and a fourth top locking screw hole in sequence from the inner side to the outer side;
when a first locking screw penetrates through the first top locking screw hole, a first upper screwing part of the first locking screw is in screwed connection with the first 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 located 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;
when a second locking screw penetrates through the second top locking screw hole, a second upper screwing part of the second locking screw is in screwed connection with the second top locking screw hole, and a normal vertical direction inclination angle of a plane where the second locking screw and the second fixing part are located 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;
when a third locking screw penetrates through the third top locking screw hole, a third upper screwing part of the third locking screw is in screwed connection with the third 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 third locking screw and the second fixing part are located is a third horizontal inclination angle;
when a fourth locking screw penetrates through the fourth top locking screw hole, a fourth upper screwing part of the fourth locking screw is in screwed connection with the fourth top locking screw hole, and a normal vertical direction inclination angle of a plane where the fourth locking screw and the second fixing part are located is a fourth vertical inclination angle; the normal horizontal direction inclination angle of the plane where the fourth locking screw and the second fixing part are located is a fourth horizontal inclination angle;
the first horizontal inclination angle, the second horizontal inclination angle, the third horizontal inclination angle and the fourth horizontal inclination angle are reduced in sequence;
the middle part of the first fixing part is provided with a first middle locking screw hole, a second middle locking screw hole and a third middle locking screw hole in sequence from the inner side to the outer side;
when a fifth locking screw penetrates through the first middle locking screw hole, a fifth upper screwing part of the fifth locking screw is in screwed connection with the first middle locking screw hole, and a normal vertical direction inclination angle of a plane where the fifth locking screw and the second fixing part are located is a fifth vertical inclination angle; the normal horizontal direction inclination angle of the plane where the fifth locking screw and the second fixing part are located is a fifth horizontal inclination angle;
when a sixth locking screw penetrates through the second middle locking screw hole, a sixth upper screwing part of the sixth locking screw is in screwed connection with the second middle locking screw hole, and a normal vertical direction inclination angle of a plane where the sixth locking screw and the second fixing part are located is a sixth vertical inclination angle; the normal horizontal direction inclination angle of the plane where the sixth locking screw and the second fixing part are located is a sixth horizontal inclination angle;
when a seventh locking screw penetrates through the third middle locking screw hole, a seventh upper screwing part of the seventh locking screw is in screwed connection with the third middle locking screw hole, and a normal vertical direction inclination angle of a plane where the seventh locking screw and the second fixing part are located is a seventh vertical inclination angle; the horizontal direction inclination angle of the plane where the seventh locking screw and the second fixing part are located in the normal direction is a seventh horizontal inclination angle;
the fifth horizontal inclination, the sixth horizontal inclination and the seventh horizontal inclination decrease in sequence;
the first inclined inserting locking screw hole is positioned at the lower part of the first fixing part, when an eighth locking screw penetrates through the first inclined inserting locking screw hole, an eighth upper screwing part of the eighth locking screw is in screwed connection with the first inclined inserting locking screw hole, and the normal horizontal direction inclination angle of the plane where the eighth locking screw and the second fixing part are positioned is an eighth horizontal inclination angle; the normal vertical direction inclination angle of the plane where the eighth locking screw and the second fixing part are located is an eighth vertical inclination angle; the eighth vertical tilt angle intersects the fifth vertical tilt angle, the sixth vertical tilt angle, and the seventh vertical tilt angle, respectively;
the second fixing portion includes:
the fixing screw hole is positioned on the surface of the second fixing part;
the front side connecting screw 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 screw hole is a first aperture;
the rear side connecting screw hole is positioned at the rear side of the side surface of the second fixing part, and the aperture of the rear side connecting screw hole is a second aperture;
the first connecting rod is inserted into the front side connecting screw hole, the second connecting rod is inserted into the rear side connecting screw hole, when the ninth locking screw penetrates through the fixed screw hole, the ninth upper screwing part of the ninth locking screw is in screwed connection with the fixed screw hole, so that the front side connecting screw hole and the rear side connecting screw hole are extruded, and the first connecting rod and the second connecting rod are fixedly connected with the second fixing part.
Preferably, the eighth vertical inclination is greater than the first vertical inclination, the second vertical inclination, the third vertical inclination, the fourth vertical inclination, the fifth vertical inclination, the sixth vertical inclination, and the seventh vertical inclination.
Preferably, the first vertical inclination angle, the second vertical inclination angle, the third vertical inclination angle and the fourth vertical inclination angle range from 6 to 10 °, the fifth vertical inclination angle, the sixth vertical inclination angle and the seventh vertical inclination angle range from 4 to 8 °, and the eighth vertical inclination angle range from 11 to 15 °.
Preferably, the first vertical inclination angle, the second vertical inclination angle, the third vertical inclination angle and the fourth vertical inclination angle are the same; the fifth vertical tilt angle, the sixth vertical tilt angle, and the seventh vertical tilt angle are the same.
Preferably, the first vertical inclination angle, the second vertical inclination angle, the third vertical inclination angle, the fourth vertical inclination angle, the fifth vertical inclination angle, the sixth vertical inclination angle, and the seventh vertical inclination angle decrease in sequence.
Preferably, the eighth horizontal inclination is greater than the first horizontal inclination, the second horizontal inclination, the third horizontal inclination, the fourth horizontal inclination, the fifth horizontal inclination, the sixth horizontal inclination, and the seventh horizontal inclination.
Preferably, the first horizontal inclination angle range is 14-18 °, the second horizontal inclination angle range is 10-14 °, the third horizontal inclination angle range is 6-10 °, the fourth horizontal inclination angle range is 3-7 °, the fifth horizontal inclination angle range is 12-16 °, the sixth horizontal inclination angle range is 8-12 °, the seventh horizontal inclination angle range is 4-8 °, and the eighth horizontal inclination angle range is 20-24 °.
Preferably, the curvature radius of the bottom edge of a horizontal tangent plane of the first fixing part between the top locking screw hole and the middle locking screw hole is R1, and the value range of R1 is 30-35 mm;
the curvature radius of the bottom edge of a horizontal tangent plane between the middle locking screw hole and the first inclined insertion locking screw hole of the first fixing part is R2, and the value range of R2 is 58-63 mm.
Preferably, the first fixing part further has more than one positioning hole for temporarily fixing a special-shaped block or threading a suture or a cable in an operation.
Preferably, the first aperture of the front side connection screw hole and the second aperture of the rear side connection screw hole are equal or different.
The embodiment of the utility model provides a pair of shin bone near-end outside dysmorphism piece realizes the spatial structure of cross locking through the locking screw that sets up different position, promotes the fixed firmness with the shin bone, and integrated into one piece designs and has certain curvature, guarantees the attachability, and the parcel scope is wider, alleviates patient's uncomfortable and feels.
Drawings
Fig. 1 is a top view of a proximal lateral tibial profile block provided in an embodiment of the present invention;
fig. 2 is a side view (a) of a proximal lateral tibial profile block provided in an embodiment of the present invention;
fig. 3 is a side view (ii) of the proximal lateral tibial profile block provided in the embodiment of the present invention;
FIG. 4 is a cross-sectional view of portion A-A of FIG. 1;
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 examples.
The embodiment of the utility model provides a shin bone near-end outside dysmorphism piece 7, this dysmorphism piece is applied to the fixed of fracture position in the shin bone fracture operation.
Fig. 1 is a top view of a proximal tibia outer profile block provided in an embodiment of the present invention, fig. 2 is a side view (a) of the proximal tibia outer profile block provided in an embodiment of the present invention, and fig. 3 is a side view (a) of the proximal tibia outer profile block provided in an embodiment of the present invention; as shown in the figures, the utility model discloses shin bone near-end outside dysmorphism piece 7 is platelike structure, and shin bone near-end outside dysmorphism piece 7 specifically includes: a first fixing portion 71 and a second fixing portion 72.
The first fixing portion 71 and the second fixing portion 72 are connected and integrally formed.
Preferably, in this embodiment, the plane where the second fixing portion 72 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; the side of the first fixing portion 71 parallel to the long side of the proximal tibial outer profile block 7 is defined as the outer side of the proximal tibial outer profile block 7, extending from the long side to the short side, and the end side of the short side is defined as the inner side of the proximal tibial outer profile block 7.
The outer surface of the first fixing part 71 is an arc-shaped curved surface with a certain radian, a plurality of screw holes and round holes are sequentially arranged on the arc-shaped curved surface from the inner side to the outer side, and the inner surface of the first fixing part 71 is an arc-shaped surface which is matched with the curved surface at the upper end of the outer side of the proximal tibia and is used for being fixed on the outer side of the proximal tibia; specifically, the first fixing portion 71 is provided at the top thereof with a first top locking screw hole 710, a second top locking screw hole 711, a third top locking screw hole 712, and a fourth top locking screw hole 713 in this order from the inside to the outside.
The first top locking screw hole 710 is positioned at the end part of the top of the first fixing part 71 close to the short side, the inside of the first top locking screw hole 710 is specifically composed of an upper edge part and a lower edge part, the surface of the upper edge part is a smooth curved surface, the surface of the lower edge part is provided with fastening threads, and the first top locking screw hole 710 is used for attaching and fixing the inner surface of the first fixing part 71 and the bone surface of the upper end of the outer side of the tibia on the surface of the first top locking screw hole by a locking;
in a specific embodiment, after the first locking screw is inserted into the first top locking screw hole 710, the first upper screw portion of the first locking screw is screwed with the lower edge portion of the first top locking screw hole 710, and as the first upper screw 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 first top locking screw hole 710, the screw portion and the head portion of the first locking screw are inserted into the bone after passing through the first top locking screw hole 710, respectively, and during the insertion process, the inclination angle formed by the first locking screw and the third plane is a first vertical inclination angle α, and the first vertical inclination angle α ranges from 6 ° to 10 °; the inclination angle formed by the first locking screw and the second plane is a first horizontal inclination angle alpha ', and the range of the first horizontal inclination angle alpha' is 14-18 degrees.
A second top locking screw hole 711 provided below the first top locking screw hole 710 and interposed between the first top locking screw hole 710 and the third top locking screw hole 712, similarly, the second top locking screw hole 711 has an upper edge portion and a lower edge portion as well as the first top locking screw hole 710, the second top locking screw hole 711 has the same function as the first top locking screw hole 710, and the first fixing portion 71 is attached and fixed to the bone surface of the outer upper end of the tibia by a locking screw;
in a specific embodiment, after the second locking screw is inserted into the second top locking screw hole 711, the second upper screw-connecting portion of the second locking screw is screwed with the lower edge portion of the second top locking screw hole 711, and as the second upper screw-connecting portion is screwed with the fastening screw and bites, the screw cap portion of the second locking screw stays in the upper edge portion of the second top locking screw hole 711, and the screw portion and the head portion of the second locking screw are inserted into the bone after passing through the second top locking screw hole 711, respectively, during the insertion process, the inclination angle formed by the second locking screw and the third plane is the second vertical inclination angle β, and the second vertical inclination angle β is equal to the first vertical inclination angle α; the inclination angle formed by the second locking screw and the second plane is a second horizontal inclination angle beta ', and the range of the second horizontal inclination angle beta' is 10-14 degrees.
A third top locking screw hole 712 interposed between the second top locking screw hole 711 and the fourth top locking screw hole 713, and similarly, the inside of the third top locking screw hole 712 has an upper edge portion and a lower edge portion as well as the inside of the first top locking screw hole 710, and the third top locking screw hole 712 has the same function as the first top locking screw hole 710, and the first fixing portion 71 is attached and fixed to the bone surface of the outer upper end of the tibia by a locking screw;
in a specific embodiment, after the third locking screw is inserted into the third top-locking screw hole 712, the third upper screw-connecting portion of the third locking screw is screwed with the lower edge portion of the third top-locking screw hole 712, and as the third upper screw-connecting portion is screwed and bitten with the fastening screw, the screw cap portion of the third locking screw stays in the upper edge portion of the third top-locking screw hole 712, and the screw portion and the head portion of the third locking screw are inserted into the bone after passing through the third top-locking screw hole 712, respectively, during the insertion process, the inclination angle formed by the third locking screw and the third plane is the third vertical inclination angle γ, and the third vertical inclination angle γ is equal to the first vertical inclination angle α; the inclination angle formed by the third locking screw and the second plane is a third horizontal inclination angle gamma ', and the range of the third horizontal inclination angle gamma' is 6-10 degrees.
A fourth top locking screw hole 713 formed below the third top locking screw hole 712, and similarly, the fourth top locking screw hole 713 has an upper edge portion and a lower edge portion inside the same as the first top locking screw hole 710, and the fourth top locking screw hole 713 has the same function as the first top locking screw hole 710, and the first fixing portion 71 is attached and fixed to the bone surface of the outer upper end of the tibia by a locking screw;
in a specific embodiment, after the fourth locking screw is inserted into the fourth top-locking screw hole 713, the fourth upper screw-connecting portion of the fourth locking screw is screwed with the lower edge portion of the fourth top-locking screw hole 713, as the fourth upper screw-connecting portion is screwed and bitten with the fastening screw, the screw cap portion of the fourth locking screw stays in the upper edge portion of the fourth top-locking screw hole 713, the screw portion and the head portion of the fourth locking screw are inserted into the bone through the fourth top-locking screw hole 713, respectively, and during the insertion process, the inclination angle formed by the fourth locking screw and the third plane is a fourth vertical inclination angle, and the fourth vertical inclination angle is equal to the first vertical inclination angle α; the inclination angle formed by the fourth locking screw and the second plane is a fourth horizontal inclination angle' which ranges from 3 degrees to 7 degrees.
As shown in fig. 2, the first vertical inclination angle α, the second vertical inclination angle β, the third vertical inclination angle γ, and the fourth vertical inclination angle are the same; as shown in fig. 3, the degrees of the first horizontal inclination angle α ', the second horizontal inclination angle β', the third horizontal inclination angle γ ', and the fourth horizontal inclination angle' are sequentially decreased.
A first middle locking screw hole 714, a second middle locking screw hole 715 and a third middle locking screw hole 716 are sequentially provided in the middle of the first fixing portion 71 from the inner side to the outer side.
A first medial locking screw hole 714 which is located below the first top locking screw hole 710 and close to one end of the inner side of the proximal tibia outer profile block 7, similarly, the inside of the first medial locking screw hole 714 and the inside of the first top locking screw hole 710 have an upper edge portion and a lower edge portion, the first medial locking screw hole 714 has the same function as the first top locking screw hole 710, and the first fixing portion 71 is attached and fixed to the bone surface of the upper end of the outer side of the tibia through a locking screw;
in a specific embodiment, after the fifth locking screw is inserted into the first middle locking screw hole 714, the fifth upper screw part of the fifth locking screw is screwed with the lower edge part of the first middle locking screw hole 714, and as the fifth upper screw part is screwed with the fastening screw and bites, the cap part of the fifth locking screw stays in the upper edge part of the first middle locking screw hole 714, the screw part and the head part of the fifth locking screw are respectively inserted into the bone through the first middle locking screw hole 714, and during the insertion process, the inclination angle formed by the fifth locking screw and the third plane is a fifth vertical inclination angle, and the fifth vertical inclination angle ranges from 4 to 8 °; the inclination angle formed by the fifth locking screw and the second plane is a fifth horizontal inclination angle' which ranges from 12 degrees to 16 degrees.
A second middle locking screw hole 715 positioned below the first middle locking screw hole 714 and between the first middle locking screw hole 714 and the third middle locking screw hole 716, similarly, the inside of the second middle locking screw hole 715 has an upper edge portion and a lower edge portion as well as the inside of the first top locking screw hole 710, the second middle locking screw hole 715 has the same function as the first top locking screw hole 710, and the first fixing portion 71 is attached and fixed to the bone surface at the upper end of the outer side of the tibia by a locking screw;
in a specific embodiment, after the sixth locking screw is inserted into the second middle locking screw hole 715, the sixth upper screw portion of the sixth locking screw is screwed with the lower edge portion of the second middle locking screw hole 715, and as the sixth upper screw portion is screwed with the fastening screw and bites, the cap portion of the sixth locking screw stays in the upper edge portion of the second middle locking screw hole 715, the screw portion and the head portion of the sixth locking screw are inserted into the bone after passing through the second middle locking screw hole 715 respectively, and during the insertion process, the inclination angle formed by the sixth locking screw and the third plane is a sixth vertical inclination angle ζ, and the sixth vertical inclination angle ζ and the fifth vertical inclination angle are equal; the inclination angle formed by the sixth locking screw and the second plane is a sixth horizontal inclination angle zeta ', and the range of the sixth horizontal inclination angle zeta' is 8-12 degrees.
A third middle locking screw hole 716 positioned below the second middle locking screw hole 715, similarly, the inside of the third middle locking screw hole 716 has an upper edge portion and a lower edge portion as the inside of the first top locking screw hole 710, the third middle locking screw hole 716 has the same function as the first top locking screw hole 710, and the first fixing portion 71 is attached and fixed to the bone surface of the upper end of the outer side of the tibia by a locking screw;
in a specific embodiment, after the seventh locking screw is inserted into the third middle locking screw hole 716, the seventh upper screw portion of the seventh locking screw is screwed with the lower edge portion of the third middle locking screw hole 716, and as the seventh upper screw portion is screwed with the fastening screw and bites, the cap portion of the seventh locking screw stays in the upper edge portion of the third middle locking screw hole 716, the screw portion and the head portion of the seventh locking screw are inserted into the bone after passing through the third middle locking screw hole 716, respectively, and during the insertion process, the inclination angle formed by the seventh locking screw and the third plane is the seventh vertical inclination angle η, and the seventh vertical inclination angle η and the fifth vertical inclination angle are equal; the inclination angle formed by the seventh locking screw and the second plane is a seventh horizontal inclination angle eta ', and the range of the seventh horizontal inclination angle eta' is 4-8 degrees.
As shown in fig. 2, the fifth vertical inclination angle, the sixth vertical inclination angle ζ, and the seventh vertical inclination angle η are the same; as shown in fig. 3, the degrees of the fifth horizontal inclination angle ', the sixth horizontal inclination angle ζ ', and the seventh horizontal inclination angle η ' are sequentially decreased.
A first inclined insertion locking screw hole 717 provided at a lower portion of the first fixing portion 71, and similarly, the first inclined insertion locking screw hole 717 has an upper edge portion and a lower edge portion inside as well as the first top locking screw hole 710, and the first inclined insertion locking screw hole 717 has the same function as the first top locking screw hole 710, and the first fixing portion 71 is attached and fixed to a bone surface of a proximal end of the tibia by a locking screw;
in a specific embodiment, after the eighth locking screw is inserted into the first oblique insertion locking screw hole 717, the eighth upper screw portion of the eighth locking screw is screwed with the lower edge portion of the first oblique insertion locking screw hole 717, and as the eighth upper screw portion is screwed and bitten with the fastening screw, the screw cap portion of the eighth locking screw stays in the upper edge portion of the first oblique insertion locking screw hole 717, the screw portion and the head portion of the eighth locking screw are respectively inserted into the bone after passing through the first oblique insertion locking screw hole 717, and during the insertion process, the inclination angle formed by the eighth locking screw and the third plane is an eighth vertical inclination angle θ, and the eighth vertical inclination angle θ ranges from 11 ° to 15 °; the eighth vertical inclination angle θ intersects the fifth vertical inclination angle, the sixth vertical inclination angle ζ, and the seventh vertical inclination angle η, respectively; the inclination angle formed by the eighth locking screw and the second plane is an eighth horizontal inclination angle theta' which ranges from 20 degrees to 24 degrees.
As shown in fig. 2, the eighth vertical inclination angle θ is greater than the first vertical inclination angle α, the second vertical inclination angle β, the third vertical inclination angle γ, the fourth vertical inclination angle, the fifth vertical inclination angle, the sixth vertical inclination angle ζ, and the seventh vertical inclination angle η.
Likewise, the degrees of the first vertical inclination α, the second vertical inclination β, the third vertical inclination γ, the fourth vertical inclination, the fifth vertical inclination, the sixth vertical inclination ζ, and the seventh vertical inclination η decrease in order.
As shown in fig. 3, the eighth horizontal inclination angle θ 'is greater than the first horizontal inclination angle α', the second horizontal inclination angle β ', the third horizontal inclination angle γ', the fourth horizontal inclination angle ', the fifth horizontal inclination angle', the sixth horizontal inclination angle ζ ', and the seventh horizontal inclination angle η'.
The positioning holes 718 are formed by circular holes and are respectively located at the top and the middle of the first fixing portion 71, and specifically include a first positioning hole 7180, a second positioning hole 7181, a third positioning hole 7182 and a fourth positioning hole 7183; the first positioning hole 7180, the second positioning hole 7181 and the third positioning hole 7182 are respectively positioned above the first top locking screw hole 710, the second top locking screw hole 711, the third top locking screw hole 712 and the fourth top locking screw hole 713, the fourth positioning hole 7183 is positioned between the top locking screw hole and the middle locking screw hole, the aperture of the positioning hole 718 is smaller than that of the locking screw hole, and the positioning hole 718 is used for temporarily fixing a special-shaped block on the outer side of the proximal end of the tibia in an operation or threading a suture or a cable.
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-shaped surface of the inner surface of the first fixing portion 71, which extends from the top to the middle, is gradually increased, and the curvature radius of the bottom edge of the horizontal tangent plane between the top locking screw hole and the middle locking screw hole is R1, which is 30-35 mm; the radius of curvature of the bottom edge of the horizontal tangent plane between the middle locking screw hole and the first inclined insertion locking screw hole 717 ranges from 58 mm to 63mm, and R2 is the radius of curvature.
Fig. 4 is a sectional view of a portion a-a of fig. 1, and as shown in fig. 1 and 4, an outer surface of the second fixing portion 72 is provided with an arc-shaped curved surface having a certain curvature, two adjacent fixing screw holes 720 are provided in the arc-shaped curved surface, and are spaced apart from each other at a certain distance along a long axis direction of the second fixing portion 72, an interior of each fixing screw hole 720 is specifically composed of an upper edge 7201 and a lower edge 7202, a surface of the upper edge 7201 is a smooth curved surface and is matched with an upper screwing portion of a locking screw, a surface of the lower edge 7202 is provided with a fastening screw, an intermediate groove 723 is provided between the upper edge 7201 and the lower edge 7202, and an aperture; the inner surface of the second fixing part 72 and the part of the tibia backbone which is jointed are also set to be arc-shaped curved surfaces with certain radian, and the radian of the inner surface arc-shaped curved surfaces of the second fixing part 72 can be adapted according to different patients and different fracture parts, so that the special-shaped block 7 at the outer side of the proximal end of the tibia is more jointed with the surface of the tibia; the side surfaces of the second fixing portion 72 are respectively provided with a front connecting screw hole 721 and a rear connecting screw hole 722, the front connecting screw hole 721 and the rear connecting screw hole 722 are arranged in parallel along the long axis direction of the second fixing portion 72 and are respectively located at both sides of the fixing screw hole 720, and the front connecting screw hole 721 and the rear connecting screw hole 722 are used for firmly connecting the connecting rod 2 with the tibia proximal outer special-shaped block 7 through a locking screw.
A front connection screw hole 721 located at the front side of the side surface of the second fixing portion 72, the front connection screw hole 721 having a first hole diameter D1;
a rear connection screw hole 722 positioned at the rear side of the side surface of the second fixing portion 72, the rear connection screw hole 722 having a second hole diameter D2;
wherein the first and second apertures D1 and D2 are equal or different, and the apertures of the anterior and posterior connecting screw holes 721 and 722 are configured differently to specifically conform to the shape and characteristics of the asian bones.
The intersection of the front and rear connection screw holes 721 and 722 and the fixing screw hole 720 in the second fixing portion 72 has a cross hole 724, and the cross hole 724 is mainly used for pressing the connecting rod 2 by a locking screw, thereby fixing the connecting rod 2 in the second fixing portion 72.
In a specific embodiment, the first connecting rod 20 is inserted into the front connecting screw hole 721, the second connecting rod 21 is inserted into the rear connecting screw hole 722, after two ninth locking screws are respectively inserted into two adjacent fixing screw holes 720, a ninth upper screw part of the ninth locking screw is screwed with the lower edge 7202 of the fixing screw hole 720, as the ninth upper screw part is screwed and gripped with the fastening screw, the gap of the middle groove 723 is further compressed, a screw cap portion of the ninth locking screw is stopped in the upper edge 7201 of the fixing screw hole 720, the first connecting rod 20 and the second connecting rod 21 are fixedly connected with the second fixing part 72 through the cross hole 724 while respectively pressing the front connecting screw hole 721 and the rear connecting screw hole 722, and a screw head portion and a nail head portion of the ninth locking screw are respectively inserted into the bone after passing through the fixing screw holes 720.
The above is a description of the components of the proximal tibia lateral special-shaped block 7 and the connection relationship between them provided by the embodiment of the present invention, and the following describes in detail the usage of the proximal tibia lateral special-shaped block 7 with reference to fig. 1 and 4;
when a doctor uses the proximal tibia outside special-shaped block 7 to fix a fracture part in a tibia fracture operation, a locking screw needs to be matched with the connecting rod 2 for use. The process used in conjunction is described in detail below.
In a specific tibial fracture operation, a surgeon aligns and fits the first fixing portion 71 of the proximal tibial outer profile block 7 with the bone surface of the upper end of the outer side of the tibia, inserts locking screws into the first top locking screw hole 710, the second top locking screw hole 711, the third top locking screw hole 712 and the fourth top locking screw hole 713, respectively, inserts the locking screws into the first top locking screw hole, the second top locking screw hole 711, the third top locking screw hole and the fourth top locking screw hole, inserts the upper screw portion of the locking screws into the lower edge portion of the locking screw holes after the locking screws are inserted into the locking screw holes, inserts the screw portion and the head portion of the locking screws into the bone after the screw portions of the locking screws are inserted into the locking screw holes, respectively, finally fixes the first fixing portion 71 of the proximal tibial outer profile block 7 to the bone surface of the outer side of the tibia, inserts the first connecting rod 20 and the second connecting rod 21 into the anterior connecting screw hole 721 and the posterior connecting screw hole 722, meanwhile, the locking screws are respectively arranged in two adjacent fixing screw holes 720 in a penetrating way, after the locking screws are arranged in the fixing screw holes 720 in a penetrating way, the upper screwing parts of the locking screws are screwed with the lower edges 7202 of the fixing screw holes 720, along with the screwing and the fastening screw threads are screwed and bitten, the screw cap parts of the locking screws are stopped in the upper edges 7201 of the fixing screw holes 720, the gaps of the middle grooves 723 are further compressed, the locking screws respectively press the front side connecting screw holes 721 and the rear side connecting screw holes 722, meanwhile, the first connecting rod 20 and the second connecting rod 21 are fixedly connected with the second fixing parts 72 through the cross holes 724, the screw rod parts and the screw head parts of the locking screws respectively penetrate through the fixing screw holes 720 and then are implanted into bones, and finally, the proximal outer side block 7 of the tibia and the proximal end are.
The embodiment of the utility model provides a pair of shin bone near-end outside dysmorphism piece realizes the spatial structure of cross locking through the locking screw that sets up different position, promotes the fixed firmness with the shin bone, and integrated into one piece designs and has certain curvature, guarantees the attachability, and the parcel scope is wider, alleviates patient's uncomfortable and feels.
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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (10)
1. The utility model provides a shin bone near-end outside dysmorphism piece, its characterized in that, shin bone near-end outside dysmorphism piece is platelike structure, shin bone near-end outside 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 outer side of the tibia and is used for being fixed on the outer side of the tibia;
the top of the first fixing part is provided with a first top locking screw hole, a second top locking screw hole, a third top locking screw hole and a fourth top locking screw hole in sequence from the inner side to the outer side;
when a first locking screw penetrates through the first top locking screw hole, a first upper screwing part of the first locking screw is in screwed connection with the first 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 located 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;
when a second locking screw penetrates through the second top locking screw hole, a second upper screwing part of the second locking screw is in screwed connection with the second top locking screw hole, and a normal vertical direction inclination angle of a plane where the second locking screw and the second fixing part are located 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;
when a third locking screw penetrates through the third top locking screw hole, a third upper screwing part of the third locking screw is in screwed connection with the third 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 third locking screw and the second fixing part are located is a third horizontal inclination angle;
when a fourth locking screw penetrates through the fourth top locking screw hole, a fourth upper screwing part of the fourth locking screw is in screwed connection with the fourth top locking screw hole, and a normal vertical direction inclination angle of a plane where the fourth locking screw and the second fixing part are located is a fourth vertical inclination angle; the normal horizontal direction inclination angle of the plane where the fourth locking screw and the second fixing part are located is a fourth horizontal inclination angle;
the first horizontal inclination angle, the second horizontal inclination angle, the third horizontal inclination angle and the fourth horizontal inclination angle are reduced in sequence;
the middle part of the first fixing part is provided with a first middle locking screw hole, a second middle locking screw hole and a third middle locking screw hole in sequence from the inner side to the outer side;
when a fifth locking screw penetrates through the first middle locking screw hole, a fifth upper screwing part of the fifth locking screw is in screwed connection with the first middle locking screw hole, and a normal vertical direction inclination angle of a plane where the fifth locking screw and the second fixing part are located is a fifth vertical inclination angle; the normal horizontal direction inclination angle of the plane where the fifth locking screw and the second fixing part are located is a fifth horizontal inclination angle;
when a sixth locking screw penetrates through the second middle locking screw hole, a sixth upper screwing part of the sixth locking screw is in screwed connection with the second middle locking screw hole, and a normal vertical direction inclination angle of a plane where the sixth locking screw and the second fixing part are located is a sixth vertical inclination angle; the normal horizontal direction inclination angle of the plane where the sixth locking screw and the second fixing part are located is a sixth horizontal inclination angle;
when a seventh locking screw penetrates through the third middle locking screw hole, a seventh upper screwing part of the seventh locking screw is in screwed connection with the third middle locking screw hole, and a normal vertical direction inclination angle of a plane where the seventh locking screw and the second fixing part are located is a seventh vertical inclination angle; the horizontal direction inclination angle of the plane where the seventh locking screw and the second fixing part are located in the normal direction is a seventh horizontal inclination angle;
the fifth horizontal inclination, the sixth horizontal inclination and the seventh horizontal inclination decrease in sequence;
the first inclined inserting locking screw hole is positioned at the lower part of the first fixing part, when an eighth locking screw penetrates through the first inclined inserting locking screw hole, an eighth upper screwing part of the eighth locking screw is in screwed connection with the first inclined inserting locking screw hole, and the normal horizontal direction inclination angle of the plane where the eighth locking screw and the second fixing part are positioned is an eighth horizontal inclination angle; the normal vertical direction inclination angle of the plane where the eighth locking screw and the second fixing part are located is an eighth vertical inclination angle; the eighth vertical tilt angle intersects the fifth vertical tilt angle, the sixth vertical tilt angle, and the seventh vertical tilt angle, respectively;
the second fixing portion includes:
the fixing screw hole is positioned on the surface of the second fixing part;
the front side connecting screw 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 screw hole is a first aperture;
the rear side connecting screw hole is positioned at the rear side of the side surface of the second fixing part, and the aperture of the rear side connecting screw hole is a second aperture;
the first connecting rod is inserted into the front side connecting screw hole, the second connecting rod is inserted into the rear side connecting screw hole, when the ninth locking screw penetrates through the fixed screw hole, the ninth upper screwing part of the ninth locking screw is in screwed connection with the fixed screw hole, so that the front side connecting screw hole and the rear side connecting screw hole are extruded, and the first connecting rod and the second connecting rod are fixedly connected with the second fixing part.
2. The proximal lateral tibial profile block of claim 1, wherein said eighth vertical tilt angle is greater than said first vertical tilt angle, said second vertical tilt angle, said third vertical tilt angle, said fourth vertical tilt angle, said fifth vertical tilt angle, said sixth vertical tilt angle, and said seventh vertical tilt angle.
3. The proximal lateral tibial profile block of claim 1, wherein said first, second, third and fourth vertical tilt angles are in the range of 6-10 °, said fifth, sixth and seventh vertical tilt angles are in the range of 4-8 °, and an eighth vertical tilt angle is in the range of 11-15 °.
4. The proximal lateral tibial profile block of claim 3, wherein said first vertical tilt angle, said second vertical tilt angle, said third vertical tilt angle, and said fourth vertical tilt angle are the same; the fifth vertical tilt angle, the sixth vertical tilt angle, and the seventh vertical tilt angle are the same.
5. The proximal lateral tibial profile block of claim 1, wherein said first vertical tilt angle, said second vertical tilt angle, said third vertical tilt angle, said fourth vertical tilt angle, said fifth vertical tilt angle, said sixth vertical tilt angle, and said seventh vertical tilt angle decrease in sequence.
6. The proximal lateral tibial profile block of claim 1, wherein said eighth horizontal inclination angle is greater than said first horizontal inclination angle, said second horizontal inclination angle, said third horizontal inclination angle, said fourth horizontal inclination angle, said fifth horizontal inclination angle, said sixth horizontal inclination angle, and said seventh horizontal inclination angle.
7. The proximal lateral tibial profile block of claim 1, wherein said first horizontal inclination angle is in the range of 14 to 18 °, said second horizontal inclination angle is in the range of 10 to 14 °, said third horizontal inclination angle is in the range of 6 to 10 °, said fourth horizontal inclination angle is in the range of 3 to 7 °, said fifth horizontal inclination angle is in the range of 12 to 16 °, said sixth horizontal inclination angle is in the range of 8 to 12 °, said seventh horizontal inclination angle is in the range of 4 to 8 °, and said eighth horizontal inclination angle is in the range of 20 to 24 °.
8. The proximal lateral tibial profile block of claim 1, wherein said first fixation portion has a radius of curvature R1 at a bottom edge of a horizontal section between said top locking screw and said middle locking screw, said R1 having a value in the range of 30-35 mm;
the curvature radius of the bottom edge of a horizontal tangent plane between the middle locking screw hole and the first inclined insertion locking screw hole of the first fixing part is R2, and the value range of R2 is 58-63 mm.
9. The proximal tibial lateral profile block of claim 1, wherein said first fixation portion further comprises one or more positioning holes for temporarily fixing the profile block during surgery or threading sutures or cables.
10. The proximal lateral tibial profile block of claim 1, wherein said first aperture of said anterior connection screw and said second aperture of said posterior connection screw are equal or unequal.
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| CN201922386887.3U CN211325504U (en) | 2019-12-26 | 2019-12-26 | Proximal tibia lateral special-shaped block |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111202574A (en) * | 2019-12-26 | 2020-05-29 | 天津市威曼生物材料有限公司 | Proximal tibia lateral special-shaped block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111202574A (en) * | 2019-12-26 | 2020-05-29 | 天津市威曼生物材料有限公司 | Proximal tibia lateral special-shaped block |
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