CN211325503U - Proximal humerus special-shaped block - Google Patents
Proximal humerus special-shaped block Download PDFInfo
- Publication number
- CN211325503U CN211325503U CN201922386886.9U CN201922386886U CN211325503U CN 211325503 U CN211325503 U CN 211325503U CN 201922386886 U CN201922386886 U CN 201922386886U CN 211325503 U CN211325503 U CN 211325503U
- Authority
- CN
- China
- Prior art keywords
- locking screw
- inclination angle
- screw hole
- hole
- fixing part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to a proximal humerus dysmorphism piece, proximal humerus dysmorphism piece are platelike structure, and proximal humerus dysmorphism piece specifically includes: first and second fixing portions: the inner surface of the first fixing part is an arc surface; the first fixing portion includes: two top locking screw holes are positioned at the upper part of the first fixing part; the first inclined insertion locking screw hole is positioned below the top locking screw hole; the second inclined inserting locking screw hole is positioned below the first inclined inserting locking screw hole; the two middle locking screw holes are positioned below the second inclined insertion locking screw holes; the third oblique inserting locking screw hole is positioned below the middle locking screw hole; two lower locking screw holes located below the third oblique locking screw hole; the second fixing portion includes: the fixing screw hole is positioned on the surface of the second fixing part; the connecting rod is connected with the round hole and is positioned on the side surface of the second fixing part.
Description
Technical Field
The utility model relates to an orthopedics medical instrument field especially relates to a proximal humerus dysmorphism piece.
Background
The incidence of fractures is also increasing with the accelerating aging population. Among them, humeral fractures are very common injuries, and when humeral fractures are treated, the reduction of fractured bones requires the use of fixing devices such as connecting rods to firmly connect and fix the fractured bones together.
In the use, in order to guarantee that the connecting rod is fixed to the humerus, install fixing device additional to the both ends of connecting rod, can avoid the aversion of skeleton, the patient of being convenient for properly takes exercise, makes skeleton furthest resume the function, and current fixing device is in order to reach the purpose of firm humerus, and fixing device surface mounting's screw is generally all denser, and it has following defect: 1. the implanted screws are too many, the drilling has great damage to the humeral structure, and the deformation of the humeral head is easily caused; 2. the implanted screws, which are present in the humerus for a long time, affect the blood circulation and cause lesions of the humeral head; 3. besides the preset nail holes, the surface of the fixing device can cause discomfort to a patient when the fixing device is tightly attached to the humerus.
Disclosure of Invention
To the above-mentioned problem that exists among the prior art, the utility model aims to provide a humerus near-end dysmorphism piece, platelike structure design, the simple installation, firm in connection promotes the degree of laminating, reduces the secondary damage to the skeleton, promotes patient's comfort level and guarantees the safety in utilization.
In order to achieve the above object, the utility model provides a proximal humerus dysmorphism piece, proximal humerus dysmorphism piece is platelike structure, proximal humerus 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 and is matched with the curved surface of the upper end of the humerus; the first fixing portion includes:
the two top locking screw holes are positioned at the upper part of the first fixing part, after a first locking screw penetrates through the top locking screw holes, a first upper screwing part of the first locking screw is in screwed connection with the top locking screw holes, 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 first inclined inserting locking screw hole is positioned below the top locking screw hole, when a second locking screw penetrates through the first inclined inserting locking screw hole, a second upper screwing part of the second locking screw is in screwed connection with the first inclined inserting locking screw hole, and a normal vertical direction inclination angle of a plane where the second locking screw and the second fixing part are positioned is a second vertical inclination angle;
the second inclined inserting locking screw hole is positioned below the first inclined inserting locking screw hole, when a third locking screw penetrates through the second inclined inserting locking screw hole, a third upper screwing part of the third locking screw is in screwed connection with the second inclined inserting locking screw hole, and a normal vertical direction inclination angle of a plane where the third locking screw and the second fixing part are positioned is a third vertical inclination angle; the third vertical inclination angle intersects the second vertical inclination angle;
the two middle locking screw holes are positioned below the second oblique inserting locking screw hole, when a fourth locking screw penetrates through the middle locking screw holes, a fourth upper screwing part of the fourth locking screw is in screwed connection with the middle locking screw holes, and a normal vertical direction inclination angle of a plane where the fourth locking screw and the second fixing part are positioned is a fourth vertical inclination angle;
a third oblique-insertion locking screw hole which is positioned below the middle locking screw hole, wherein after a fifth locking screw penetrates through the third oblique-insertion locking screw hole, a fifth upper screwing part of the fifth locking screw is screwed with the third oblique-insertion locking screw hole, and a normal vertical direction inclination angle of a plane where the fifth locking screw and the second fixing part are positioned is a fifth vertical inclination angle;
two lower locking screw holes are positioned below the third oblique inserting locking screw hole, when a sixth locking screw penetrates through the lower locking screw holes, a sixth upper screwing part of the sixth locking screw is in screwed connection with the lower locking screw holes, and the normal vertical direction inclination angle of the plane where the sixth locking screw and the second fixing part are positioned is a sixth vertical inclination angle; the sixth vertical tilt angle intersects the fifth vertical tilt angle;
the second fixing portion includes:
the fixing screw hole is positioned on the surface of the second fixing part;
the connecting rod connecting round hole is positioned on the side surface of the second fixing part; the connecting rod is inserted into the connecting rod connecting round hole, after the seventh locking screw penetrates through the fixing screw hole, the seventh upper screwing part of the seventh locking screw is in screwed connection with the fixing screw hole, so that the connecting rod connecting round hole is extruded, and the connecting rod is fixedly connected with the second fixing part.
Preferably, the first vertical inclination angle range is 12-18 degrees, the third vertical inclination angle range is 25-31 degrees, the fourth vertical inclination angle range is 13-18 degrees, and the sixth vertical inclination angle range is 7-13 degrees.
Preferably, the normal horizontal direction inclination angle of the plane where the second locking screw inserted into the first inclined insertion locking screw hole and the second fixing part are located is a first horizontal inclination angle;
the normal horizontal direction inclination angle of the third locking screw inserted into the second inclined insertion locking screw hole and the plane where the second fixing part is located is a second horizontal inclination angle;
the normal horizontal direction inclination angle of the fourth locking screw inserted into the middle locking screw hole and the plane where the second fixing part is located is a third horizontal inclination angle;
the normal horizontal direction inclination angle of the plane where the sixth locking screw inserted into the lower locking screw hole and the second fixing part are located is a fourth horizontal inclination angle; the fourth horizontal tilt angle is equal to the third horizontal tilt angle.
Further preferably, the second horizontal inclination angle ranges from 9 to 15 °, the third horizontal inclination angle ranges from 4 to 11 °, and the fourth horizontal inclination angle and the sixth horizontal inclination angle ranges from 7 to 13 °.
Preferably, the curvature radius of the bottom edge of the horizontal tangent plane between the top locking screw hole and the first oblique insertion locking screw hole of the first fixing part is R1, and the value range of R1 is 33-38 mm;
the curvature radius of the bottom edge of the horizontal tangent plane of the first fixing part, which is positioned between the second inclined insertion locking screw hole and the middle locking screw hole, is R2, and the value range of R2 is 21-25 mm;
the curvature radius of the bottom edge of the horizontal tangent plane between the third oblique inserting locking screw hole and the lower locking screw hole of the first fixing part is R3, and the value range of R3 is 15-20 mm.
Preferably, the first fixing part further has more than one positioning hole for temporarily fixing the humerus proximal abnormal block in the operation process.
Preferably, the first fixing portion and the second fixing portion are integrally formed.
Preferably, the connecting rod connecting circular hole specifically includes: the first connecting rod connecting round hole and the second connecting rod connecting round hole;
the diameter of the first connecting rod connecting round hole is equal to or different from that of the second connecting rod connecting round hole.
The embodiment of the utility model provides a pair of humerus near-end dysmorphism piece, platelike structural design, the simple installation realizes the steadiness of connecting, promotes the laminating degree, reduces the secondary damage to the skeleton, promotes patient's comfort level and guarantees the safety in utilization.
Drawings
Fig. 1 is a top view of a proximal humerus special-shaped block according to an embodiment of the present invention;
fig. 2 is a bottom view of a proximal humerus special-shaped block according to an embodiment of the present invention;
fig. 3 is a side view (one) of a shaped block of a proximal humerus provided by an embodiment of the present invention;
fig. 4 is a side view of a shaped block of a proximal humerus according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of the portion A-A of the tail section of FIG. 2;
FIG. 6 is a cross-sectional view of the portion B-B of the head of FIG. 1;
FIG. 7 is a cross-sectional view of the portion C-C of the head of FIG. 1;
FIG. 8 is a cross-sectional view of a portion of the head D-D of FIG. 1;
fig. 9 is a schematic view of a shaped proximal humeral block used in conjunction with a locking screw and a connecting rod.
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 humerus near-end dysmorphism piece, this dysmorphism piece is applied to the fixed of fracture position in the humerus fracture operation.
Fig. 1 is a top view of a proximal humerus special-shaped block according to an embodiment of the present invention, fig. 2 is a bottom view of the proximal humerus special-shaped block according to an embodiment of the present invention, and fig. 3 is a side view (one) of the proximal humerus special-shaped block according to an embodiment of the present invention; with reference to fig. 1, 2 and 3, the utility model provides a proximal humerus special-shaped block, which is a plate-shaped structure and specifically includes: a first fixing portion 41 and a second fixing portion 42.
The first fixing portion 41 and the second fixing portion 42 are connected and integrally formed.
Preferably, in this embodiment, the plane where the second fixing portion 42 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 42 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 tilt angle of the locking screw to the normal of the plane of the second fixing portion 42 is a horizontal tilt angle, and the horizontal tilt angle is an angle between the locking screw and the second plane.
The outer surface of the first fixing portion 41 is an arc-shaped curved surface with a certain radian, and 9 locking screw holes and 5 round holes are sequentially arranged on the arc-shaped curved surface along the long side direction of the first fixing portion 41, namely two top locking screw holes 410, a first oblique-insertion locking screw hole 411, a second oblique-insertion locking screw hole 412, two middle locking screw holes 413, a third oblique-insertion locking screw hole 414, two lower locking screw holes 415 and a positioning hole 416; the positioning holes 416 include a first positioning hole 4160, a second positioning hole 4161, a third positioning hole 4162, a fourth positioning hole 4163, and a fifth positioning hole 4164; the inner surface of the first fixing portion 41 is an arc surface, and is matched with the curved surface of the upper end of the inner side of the humerus, and the first fixing portion 41 is fixed on the bone surface of the outer side of the humerus by inserting locking screws through locking screw holes.
Two top locking screw holes 410, which are located on the upper part of the first fixing part 41 and symmetrically arranged on two sides of the long shaft of the proximal humerus special-shaped block, wherein the top locking screw holes 410 are used for fixing the first fixing part 41 on the surface of the upper end surface of the humerus by locking screws from two sides of the upper end surface of the humerus to realize the joint of the inner surface of the first fixing part 41 and the bone surface of the upper end of the humerus, the inside of the top locking screw holes 410 is specifically composed of an upper edge part and a lower edge part, the surface of the upper edge part is a smooth;
in a specific embodiment, after the first locking screw is inserted into the top locking screw hole 410, the first upper screw portion of the first locking screw is screwed with the lower edge portion of the top locking screw hole 410, 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 top locking screw hole 410, the screw shaft portion and the screw head portion of the first locking screw are inserted into the bone after passing through the top locking screw hole 410, 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 12 ° to 18 °; the inclination angle formed by the first locking screw and the second plane is a first horizontal inclination angle alpha ', and the first horizontal inclination angle alpha' is 0 degree; because the two top locking screw holes 410 have the same penetrating direction and are separated by a certain distance, the phenomenon that the holes are arranged on the same straight line or plane and easily cause mutual cutting of screws can be avoided, and the problem of difficulty in nail placement in the operation is reduced.
A first oblique insertion locking screw hole 411 which is positioned on the right side of the long axis of the proximal humerus special-shaped block and is arranged below the top locking screw hole 410 and is opposite to the second positioning hole 4161, wherein the first oblique insertion locking screw hole 411 is used for fixing the first fixing part 41 on the surface of the upper end surface of the humerus head through an oblique insertion locking screw from one side of the upper end surface of the humerus head so as to realize the joint of the outer edge of the inner surface of the first fixing part 41 and the bone surface of the upper end of the humerus head, and similarly, the first oblique insertion locking screw hole 411 is also internally provided with an upper edge part;
in a specific embodiment, after the second locking screw is inserted into the first oblique insertion locking screw hole 411, the second upper screw-connection portion of the second locking screw is screwed with the lower edge portion of the first oblique insertion locking screw hole 411, and as the second upper screw-connection portion is screwed and bitten with the fastening screw, the screw cap portion of the second locking screw stays in the upper edge portion of the first oblique insertion locking screw hole 411, and the screw portion and the head portion of the second locking screw are respectively inserted into the bone after passing through the first oblique insertion locking screw hole 411, during the implantation, the inclination angle formed by the second locking screw and the third plane is a second vertical inclination angle β, and the second vertical inclination angle β is 0 °; 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 9-15 degrees; due to the fact that the penetrating direction of the first inclined insertion locking screw hole 411 is different from the penetrating direction of the top locking screw hole 410, the locking screw can be placed in different areas of the humeral head, and therefore the holding force of the locking screw is increased.
A second oblique insertion locking screw hole 412 which is positioned on the left side of the long axis of the proximal humerus special-shaped block and is arranged below the first oblique insertion locking screw hole 411, wherein the second oblique insertion locking screw hole 412 is used for fixing the first fixing part 41 on the surface of the upper end surface of the humerus head from the other side of the upper end surface of the humerus head through an oblique insertion locking screw, so that the outer edge of the inner surface of the first fixing part 41 is attached to the bone surface of the upper end of the humerus head, and similarly, the second oblique insertion locking screw hole 412 is also internally provided with an upper edge part and a lower edge;
in a specific embodiment, after the third locking screw is inserted into the second oblique insertion locking screw hole 412, the third upper screw portion of the third locking screw is screwed with the lower edge portion of the second oblique insertion locking screw hole 412, and as the third upper screw portion is screwed with the fastening screw and is screwed and bitten, the screw cap portion of the third locking screw stays in the upper edge portion of the second oblique insertion locking screw hole 412, and the screw portion and the head portion of the third locking screw are respectively inserted into the bone after passing through the second oblique insertion locking screw hole 412, during the implantation process, the inclination angle formed by the third locking screw and the third plane is a third vertical inclination angle γ, and the third vertical inclination angle γ ranges from 25 ° to 31 °; 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 4-11 degrees; the third vertical inclination angle γ intersects with the second vertical inclination angle β, and the penetrating directions of the first oblique-insertion locking screw hole 411, the top locking screw hole 410 and the second oblique-insertion locking screw hole 412 are different, so that the locking screws can be placed in different regions of the humeral head, a spatial three-dimensional crossing structure is constructed, the holding force of the locking screws is increased, and the special-shaped block is more firmly fixed on the surface of the humerus.
Two middle locking screw holes 413 which are positioned in the middle of the first fixing part 41, symmetrically arranged on two sides of the long axis of the proximal humerus special-shaped block and arranged below the second oblique insertion locking screw hole 412, wherein the two middle locking screw holes 413 are used for fixing the first fixing part 41 on the surface of the middle end surface of the humerus head through locking screws, so that screws penetrating through the screw holes are uniformly distributed in all regions of the humerus head, and the front end of the humerus head is prevented from being inserted into excessive locking screws; similarly, the two middle locking screw holes 413 have an upper edge and a lower edge inside;
in a specific embodiment, after the fourth locking screw is inserted into the middle locking screw hole 413, the fourth upper screw-connecting portion of the fourth locking screw is screwed with the lower edge portion of the locking screw hole 413, and 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 middle locking screw hole 413, and the screw portion and the screw head portion of the fourth locking screw are respectively inserted into the bone after passing through the middle locking screw hole 413, 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 ranges from 13 ° to 18 °; the inclination angle formed by the fourth locking screw and the second plane is a fourth horizontal inclination angle' which ranges from 7 degrees to 13 degrees; the two middle locking screw holes 413 have the same penetrating direction and are separated by a certain distance, and the penetrating directions of the middle locking screw hole 413 and the first oblique inserting locking screw hole 411, the top locking screw hole 410 and the second oblique inserting locking screw hole 412 are different, so that the locking screws can be placed in different areas of the humerus head, a spatial three-dimensional crossing structure is constructed, the holding force of the locking screws is increased, and meanwhile, the special-shaped block is more firmly fixed on the surface of the humerus.
A third oblique locking screw hole 414 located below the middle locking screw hole 413 and disposed on the long axis of the proximal humerus special-shaped block, wherein the middle locking screw hole 413 is used for fixing the first fixing part 41 on the surface of the middle end surface of the humerus head through a locking screw, so as to realize the accurate positioning of the first fixing part 41 on the humerus head; similarly, the third locking screw hole 414 has an upper edge and a lower edge inside;
in a specific embodiment, after the fifth locking screw is inserted into the third oblique insertion locking screw hole 414, the fifth upper screw-connection portion of the fifth locking screw is screwed with the lower edge portion of the third oblique insertion locking screw hole 414, and as the fifth upper screw-connection portion is screwed and bitten with the fastening screw, the screw cap portion of the fifth locking screw stays in the upper edge portion of the third oblique insertion locking screw hole 414, the screw shaft portion and the screw head portion of the fifth locking screw respectively pass through the third oblique insertion locking screw hole 414 and are implanted into the bone, and during the implantation, 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 is 0 °; the inclination angle formed by the fifth locking screw and the second plane is a fifth horizontal inclination angle', which is 0 °.
FIG. 6 is a cross-sectional view of the portion B-B of the head of FIG. 1, FIG. 7 is a cross-sectional view of the portion C-C of the head of FIG. 1, and FIG. 8 is a cross-sectional view of the portion D-D of the head of FIG. 1; as shown in fig. 1, 6, 7 and 8, the curvature radius of the arc surface of the inner surface of the first fixing portion 41 extending from the top to the middle portion is gradually increased, and the curvature radius of the bottom edge of the horizontal section between the top locking screw hole 410 and the first oblique-insertion locking screw hole 411 is R1, which has a value range of 33-38 mm; the radius of curvature of the bottom edge of the horizontal tangent plane between the second oblique-insertion locking screw hole 412 and the middle locking screw hole 413 is R2 and ranges from 21 mm to 25 mm; the radius of curvature R3 at the bottom edge of the horizontal section between the third inclined insertion locking screw hole 414 and the lower locking screw hole 415 is in the range of 15-20 mm.
Two lower locking screw holes 415 which are positioned at the lower part of the first fixing part 41, symmetrically arranged at two sides of the long axis of the proximal humeral special-shaped block and arranged below the third oblique inserting locking screw hole 414, wherein the two lower locking screw holes 415 are used for fixing the first fixing part 41 on the surface of the lower end surface of the humeral head through locking screws, so that the screws penetrating through the screw holes are uniformly distributed in all regions of the humeral head, the necrosis and excessive bone loss of the humeral head are avoided, and the collapse of the humeral head is avoided; similarly, the two lower locking screw holes 415 also have an upper edge portion and a lower edge portion inside;
in a specific embodiment, after the sixth locking screw is inserted into the two lower locking screw holes 415, the sixth upper screw part of the sixth locking screw is screwed with the lower edge parts of the two lower locking screw holes 415, and as the sixth upper screw part is screwed with the fastening screw and bites, the cap part of the sixth locking screw stays in the upper edge parts of the two lower locking screw holes 415, the screw part and the head part of the sixth locking screw are respectively inserted into the bone after passing through the two lower locking screw holes 415, 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, the sixth vertical inclination angle ζ ranges from 7 to 13 degrees, and the sixth vertical inclination angle ζ intersects with the fifth vertical inclination angle; the inclination angle formed by the sixth locking screw and the second plane is a sixth horizontal inclination angle zeta ', and the sixth horizontal inclination angle zeta ' is equal to the fourth horizontal inclination angle '; wherein the two lower locking screw holes 415 have the same penetrating direction and are adjacently arranged between the two screw holes, the symmetrical arrangement mode and the penetrating direction of the lower locking screw hole 415, the top locking screw hole 410 and the middle locking screw hole 413 are different, the penetrating direction is different from the arrangement mode and the penetrating direction of the first oblique insertion locking screw hole 411, the second oblique insertion locking screw hole 412 and the third oblique insertion locking screw hole 414, the penetrating and arrangement mode of the locking screw holes on the first fixing part 41 not only realizes the spatial three-dimensional crossing structure of the locking screws, but also enables the screws to be more uniformly distributed in the humeral head, and enables the stress of each area of the humeral head to be more uniform, thereby enabling the stability of the special-shaped block to be better, and avoiding the damage of the humeral head.
As shown in fig. 1, the positioning hole 416 is made up of circular holes, is located at the upper part and the middle part of the first fixing portion 41, and specifically includes a first positioning hole 4160, a second positioning hole 4161, a third positioning hole 4162, a fourth positioning hole 4163, and a fifth positioning hole 4164; the first positioning hole 4160 is located on the upper portion of the first fixing portion 41 and between the two top locking screw holes 410, the second positioning hole 4161 is located on the upper portion of the first fixing portion 41 and between the second oblique-insertion locking screw hole 412 and the top locking screw hole 410, the third positioning hole 4162 is located in the middle of the first fixing portion 41 and between the two middle locking screw holes 413, the fourth positioning hole 4163 and the fifth positioning hole 4164 are located below the two middle locking screw holes 413 respectively and on both sides of the third oblique-insertion locking screw hole 414, the aperture of the positioning hole 416 is smaller than that of the locking screw hole, and the positioning hole 416 is used when the proximal humerus abnormal-shaped block is temporarily fixed in the surgical procedure.
Fig. 3 is a side view (one) of a proximal humerus special-shaped block provided by an embodiment of the present invention, and fig. 4 is a side view (two) of a proximal humerus special-shaped block provided by an embodiment of the present invention; as shown in fig. 3, the inclination angle of the third vertical inclination angle γ is the largest; as shown in fig. 4, the second horizontal inclination angle β' has the largest inclination angle; in this embodiment, the locking screw holes are not arranged on a plane, and this design can realize that the locking screws are placed in different regions of the humeral head to construct a spatial stereo-crossing structure, thereby achieving the purpose of increasing the holding force of the locking screws and simultaneously enabling the special-shaped block to be more firmly fixed on the humeral surface.
Fig. 5 is a cross-sectional view of a portion a-a in fig. 2, and as shown in fig. 1, fig. 2 and fig. 5, an outer surface of the second fixing portion 42 is configured as an arc-shaped curved surface having a certain curvature, two adjacent fixing screw holes 420 are disposed in the arc-shaped curved surface and are adjacently disposed along a long axis direction of the second fixing portion 42, an interior of each fixing screw hole 420 is specifically configured by an upper edge 4201 and a lower edge 4202, a surface of the upper edge 4201 is a smooth curved surface and is matched with an upper screwing portion of a locking screw, a surface of the lower edge 4202 is provided with a fastening screw, an intermediate groove 421 is disposed between the upper edge 4201 and the lower edge 4202, and an aperture of each; the position that the internal surface of second fixed part 42 and the humerus diaphysis were laminated is provided with the arc curved surface that has certain radian equally, and in order to make the laminating of second fixed part 42 and humerus inseparabler, it is more firm to consolidate the fracture position simultaneously, and according to different patients and different fracture positions, the radian of this internal surface arc curved surface of second fixed part 52 can the adaptation for the proximal humerus dysmorphism piece is fit for Asian and Chinese skeleton more.
As shown in fig. 5, a connecting rod connecting circular hole 422 is provided on a side surface of the second fixing portion 42, the connecting rod connecting circular hole 422 is specifically composed of a first connecting rod connecting circular hole 4221 and a second connecting rod connecting circular hole 4222, a diameter of the first connecting rod connecting circular hole 4221 and a diameter of the second connecting rod connecting circular hole 4222 are equal or unequal, the first connecting rod connecting circular hole 4221 and the second connecting rod connecting circular hole 4222 are symmetrically disposed on both sides of the fixing screw hole 420, and the connecting rod connecting circular hole 422 is used for firmly connecting the connecting rod 2 and the proximal humerus special-shaped block together by a locking screw.
The intersection of the first connecting rod connecting circular hole 4221 and the second connecting rod connecting circular hole 4222 with the fixing screw hole 420 has a cross hole 423, and the cross hole 423 is mainly used for pressing the connecting rod 2 by a locking screw, thereby realizing that the connecting rod 2 is fixed in the second fixing portion 52.
In a specific embodiment, the first and second connection rods 21 and 22 are inserted into the first and second connection rod round holes 4221 and 4222, respectively, and after the seventh locking screw is inserted into two adjacent fixing screw holes 420, the seventh upper screw part of the seventh locking screw is screwed with the lower edge 4202 of the fixing screw hole 420, and as the seventh upper screw part is screwed and engaged with the fastening screw, the gap of the middle groove 421 is further compressed, the screw cap portion of the seventh locking screw stays in the upper edge 4201 of the fixing screw hole 420, and the first and second connection rod round holes 4221 and 4222 are pressed while the first and second connection rods 21 and 22 are fixed to the second fixing portion 42 through the cross hole 423, and the screw part and the nail head part of the seventh locking screw pass through the fixing screw hole 420 and are implanted into the bone.
The above is a description of the components of the proximal humerus special-shaped block and the connection relationship between them provided by the embodiments of the present invention, and the following is a detailed description of the usage of the proximal humerus special-shaped block with reference to fig. 1 and 9;
when a doctor uses the proximal humerus special-shaped block 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 process, a doctor aligns and attaches a first fixing portion 41 of a proximal humerus special-shaped block with a bone surface of an upper end of an outer side of a humerus, inserts locking screws into two top locking screw holes 410, a first oblique-insertion locking screw hole 411, a second oblique-insertion locking screw hole 412, two middle locking screw holes 413, a third oblique-insertion locking screw hole 414 and two lower locking screw holes 415, respectively, inserts locking screws into the locking screw holes, screws an upper screw portion of each locking screw with a lower edge portion of the corresponding locking screw hole, screws a screw cap portion of each locking screw in an upper edge portion of the corresponding locking screw hole, inserts a screw portion and a screw head portion of each locking screw into a bone after passing through the corresponding locking screw hole, fixes the first fixing portion 41 of the proximal humerus special-shaped block on the bone surface of the outer side of the humerus, and inserts a first connecting rod 21 and a second connecting rod 22 into a first connecting circular hole 4221 and a second connecting rod connecting circular hole in sequence 4222, simultaneously inserting locking screws into two adjacent fixing screw holes 420, after the locking screws are inserted into the fixing screw holes 420, the upper screw part of the locking screws is screwed with the lower edge 4202 of the fixing screw holes 420, as the upper screw part is screwed with the fastening screw thread and is bitten, the cap part of the locking screws stays in the upper edge 4201 of the fixing screw holes 420, the gap of the middle groove 421 is further compressed, the locking screws press the first connecting rod connecting round hole 4221 and the second connecting rod connecting round hole 4222 and simultaneously fixedly connect the first connecting rod 21 and the second connecting rod 22 with the second fixing part 42 through the cross holes 423, the screw part and the head part of the locking screws respectively penetrate through the fixing screw holes 420 and then are implanted into the bone, and thus the proximal humeral special-shaped block is completely fixed with the humeral head.
The embodiment of the utility model provides a pair of humerus near-end dysmorphism piece, platelike structural design, the simple installation realizes the steadiness of connecting, promotes the laminating degree, reduces the secondary damage to the skeleton, promotes patient's comfort level and guarantees the safety in utilization.
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 (8)
1. A shaped proximal humerus block, comprising a plate-like structure, the shaped proximal humerus block comprising: 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 and is matched with the curved surface of the upper end of the humerus; the first fixing portion includes:
the two top locking screw holes are positioned at the upper part of the first fixing part, after a first locking screw penetrates through the top locking screw holes, a first upper screwing part of the first locking screw is in screwed connection with the top locking screw holes, 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 first inclined inserting locking screw hole is positioned below the top locking screw hole, when a second locking screw penetrates through the first inclined inserting locking screw hole, a second upper screwing part of the second locking screw is in screwed connection with the first inclined inserting locking screw hole, and a normal vertical direction inclination angle of a plane where the second locking screw and the second fixing part are positioned is a second vertical inclination angle;
the second inclined inserting locking screw hole is positioned below the first inclined inserting locking screw hole, when a third locking screw penetrates through the second inclined inserting locking screw hole, a third upper screwing part of the third locking screw is in screwed connection with the second inclined inserting locking screw hole, and a normal vertical direction inclination angle of a plane where the third locking screw and the second fixing part are positioned is a third vertical inclination angle; the third vertical inclination angle intersects the second vertical inclination angle;
the two middle locking screw holes are positioned below the second oblique inserting locking screw hole, when a fourth locking screw penetrates through the middle locking screw holes, a fourth upper screwing part of the fourth locking screw is in screwed connection with the middle locking screw holes, and a normal vertical direction inclination angle of a plane where the fourth locking screw and the second fixing part are positioned is a fourth vertical inclination angle;
a third oblique-insertion locking screw hole which is positioned below the middle locking screw hole, wherein after a fifth locking screw penetrates through the third oblique-insertion locking screw hole, a fifth upper screwing part of the fifth locking screw is screwed with the third oblique-insertion locking screw hole, and a normal vertical direction inclination angle of a plane where the fifth locking screw and the second fixing part are positioned is a fifth vertical inclination angle;
two lower locking screw holes are positioned below the third oblique inserting locking screw hole, when a sixth locking screw penetrates through the lower locking screw holes, a sixth upper screwing part of the sixth locking screw is in screwed connection with the lower locking screw holes, and the normal vertical direction inclination angle of the plane where the sixth locking screw and the second fixing part are positioned is a sixth vertical inclination angle; the sixth vertical tilt angle intersects the fifth vertical tilt angle;
the second fixing portion includes:
the fixing screw hole is positioned on the surface of the second fixing part;
the connecting rod connecting round hole is positioned on the side surface of the second fixing part; the connecting rod is inserted into the connecting rod connecting round hole, after the seventh locking screw penetrates through the fixing screw hole, the seventh upper screwing part of the seventh locking screw is in screwed connection with the fixing screw hole, so that the connecting rod connecting round hole is extruded, and the connecting rod is fixedly connected with the second fixing part.
2. The proximal humerus shaped block according to claim 1, wherein the first vertical inclination angle is in a range of 12 to 18 °, the third vertical inclination angle is in a range of 25 to 31 °, the fourth vertical inclination angle is in a range of 13 to 18 °, and the sixth vertical inclination angle is in a range of 7 to 13 °.
3. The proximal humeral shaped block of claim 1,
the normal horizontal direction inclination angle of the second locking screw inserted into the first inclined insertion locking screw hole and the plane where the second fixing part is located is a first horizontal inclination angle;
the normal horizontal direction inclination angle of the third locking screw inserted into the second inclined insertion locking screw hole and the plane where the second fixing part is located is a second horizontal inclination angle;
the normal horizontal direction inclination angle of the fourth locking screw inserted into the middle locking screw hole and the plane where the second fixing part is located is a third horizontal inclination angle;
the normal horizontal direction inclination angle of the plane where the sixth locking screw inserted into the lower locking screw hole and the second fixing part are located is a fourth horizontal inclination angle; the fourth horizontal tilt angle is equal to the third horizontal tilt angle.
4. The shaped proximal humerus block of claim 3, wherein the second horizontal inclination angle is in the range of 9 to 15 °, the third horizontal inclination angle is in the range of 4 to 11 °, and the fourth horizontal inclination angle and the sixth horizontal inclination angle are in the range of 7 to 13 °.
5. The proximal humeral shaped block of claim 1, wherein the radius of curvature of the bottom edge of the horizontal section between the apical locking screw hole and the first oblique-insertion locking screw hole is R1, and the value of R1 is 33-38 mm;
the curvature radius of the bottom edge of the horizontal tangent plane of the first fixing part, which is positioned between the second inclined insertion locking screw hole and the middle locking screw hole, is R2, and the value range of R2 is 21-25 mm;
the curvature radius of the bottom edge of the horizontal tangent plane between the third oblique inserting locking screw hole and the lower locking screw hole of the first fixing part is R3, and the value range of R3 is 15-20 mm.
6. The shaped proximal humeral block of claim 1, wherein the first fixture portion further has one or more positioning holes for temporary fixation of the shaped proximal humeral block during surgery.
7. The proximally humeral shaped block of claim 1, wherein the first and second fixation portions are integrally formed.
8. The proximal humeral shaped block of claim 1, wherein the connecting rod connection round hole specifically includes: the first connecting rod connecting round hole and the second connecting rod connecting round hole;
the diameter of the first connecting rod connecting round hole is equal to or different from that of the second connecting rod connecting round hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922386886.9U CN211325503U (en) | 2019-12-26 | 2019-12-26 | Proximal humerus special-shaped block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922386886.9U CN211325503U (en) | 2019-12-26 | 2019-12-26 | Proximal humerus special-shaped block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211325503U true CN211325503U (en) | 2020-08-25 |
Family
ID=72108687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922386886.9U Active CN211325503U (en) | 2019-12-26 | 2019-12-26 | Proximal humerus special-shaped block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211325503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974386A (en) * | 2019-12-26 | 2020-04-10 | 天津市威曼生物材料有限公司 | Proximal humerus special-shaped block |
-
2019
- 2019-12-26 CN CN201922386886.9U patent/CN211325503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974386A (en) * | 2019-12-26 | 2020-04-10 | 天津市威曼生物材料有限公司 | Proximal humerus special-shaped block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7909858B2 (en) | Bone plate systems using provisional fixation | |
| CA2367088C (en) | Bone plate with conical screw threads | |
| US6719759B2 (en) | Bone plate | |
| CA2539386C (en) | Anatomical distal radius fracture fixation plate and methods of using the same | |
| EP3153120B1 (en) | Bone screw with multiple thread profiles for far cortical locking and flexible engagement to a bone | |
| US7354441B2 (en) | Bone plate | |
| EP2258288B1 (en) | Anatomical distal radius fracture fixation plate | |
| US20040193155A1 (en) | Fracture fixation plate with particular plate hole and fastener engagement and methods of using the same | |
| US10166045B2 (en) | Orthopedic external fixation device | |
| CN211325503U (en) | Proximal humerus special-shaped block | |
| CN110974386A (en) | Proximal humerus special-shaped block | |
| CN211325505U (en) | Thighbone near-end dysmorphism piece | |
| CN211325508U (en) | Proximal tibia lateral special-shaped block | |
| CN211325504U (en) | Proximal tibia lateral special-shaped block | |
| CN211484858U (en) | Special-shaped block at distal end of tibia | |
| CN211325507U (en) | Tibia near-end inner special-shaped block | |
| CN110897700A (en) | Thighbone near-end dysmorphism piece | |
| CN110897702A (en) | Proximal tibia lateral special-shaped block | |
| CN111202574A (en) | Proximal tibia lateral special-shaped block | |
| CN211325506U (en) | Special-shaped block for distal femur | |
| CN110897701A (en) | Special-shaped block at distal end of tibia | |
| WO2021129547A1 (en) | Special-shaped block | |
| CN111166454A (en) | Tibia near-end inner special-shaped block | |
| CN111281513B (en) | Anatomical femoral trochanteric fracture extramedullary fixing special-shaped block and fixing system | |
| CN211325488U (en) | Single-rod half-hook fixing block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |