CN114748127A - Femoral neck osteotomy positioning device - Google Patents
Femoral neck osteotomy positioning device Download PDFInfo
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- CN114748127A CN114748127A CN202210664290.4A CN202210664290A CN114748127A CN 114748127 A CN114748127 A CN 114748127A CN 202210664290 A CN202210664290 A CN 202210664290A CN 114748127 A CN114748127 A CN 114748127A
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- femoral neck
- positioning member
- hole
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1742—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip
- A61B17/1746—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip for the acetabulum
Abstract
The invention provides a femoral neck osteotomy positioning device, which comprises: a first positioning member; the first through hole is arranged on the first positioning piece; the pin shaft is detachably arranged in the first through hole in a penetrating way; the second positioning piece is connected with the first positioning piece in an angled manner, and the end part of the second positioning piece is provided with an arc-shaped part; the third positioning piece is connected with the first positioning piece and the second positioning piece and arranged in a coplanar manner, and the axis of the third positioning piece is perpendicular to the axis of the second positioning piece; the first bone cutting groove is arranged on the third positioning piece along the length direction of the third positioning piece; and the second osteotomy groove is arranged between the second positioning piece and the third positioning piece along the length direction of the third positioning piece. The technical scheme of the application effectively solves the problems that the position of the osteotomy in the related technology is lack of intraoperative quantification, and the operation depends on experience, so that the operation effect is uncertain.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a femoral neck osteotomy positioning device.
Background
In the process of total hip replacement surgery, the femoral neck osteotomy operation mainly depends on the experience of an operating doctor, and the position 10-15mm above the femoral lesser trochanter is selected for macroscopic positioning and manual osteotomy, so that the precision is poor. Due to different levels of surgical experience of operators, the osteotomy positions have larger difference, the position and the direction of the placement of the femoral prosthesis are influenced, the repeatability of the operation is poor, the treatment effect of the operation is reduced, complications such as fracture, dislocation, unequal length of double lower limbs, lameness, prosthesis loosening and sinking and the like of a patient are easily caused, the service life of the prosthesis is reduced, and the life quality of the patient is seriously influenced.
Disclosure of Invention
The invention mainly aims to provide a femoral neck osteotomy positioning device to solve the problems that the position of an osteotomy in the related art is lack of intraoperative quantification, and the operation effect is uncertain due to the dependence on experience in the operation.
In order to achieve the above object, the present invention provides a femoral neck osteotomy positioning device, comprising: a first positioning member; the first through hole is arranged on the first positioning piece; the pin shaft is detachably arranged in the first through hole in a penetrating way; the second positioning piece is connected with the first positioning piece in an angled manner, and the end part of the second positioning piece is provided with an arc-shaped part; the third positioning piece is connected with the first positioning piece and the second positioning piece and arranged in a coplanar manner, and the axis of the third positioning piece is perpendicular to the axis of the second positioning piece; the first bone cutting groove is arranged on the third positioning piece along the length direction of the third positioning piece; and the second osteotomy groove is arranged between the second positioning piece and the third positioning piece along the length direction of the third positioning piece.
Further, the femoral neck osteotomy positioning device further comprises a plurality of first positioning portions and a plurality of second positioning portions, the plurality of first positioning portions are arranged on the first positioning member and arranged along the length direction of the first positioning member, the plurality of second positioning portions are arranged on the second positioning member and arranged along the length direction of the second positioning member, and the plurality of first positioning portions and the plurality of second positioning portions are arranged in a one-to-one correspondence manner.
Further, first locating part includes first locating plate, the second locating part includes the second locating plate, the third locating part includes the third locating plate, first locating part includes the cell body, second locating part includes the hole body, the cell body runs through first locating plate, the hole body runs through the second locating plate, the central line of first locating plate is located the plane at the end wall place of keeping away from the second locating part of a plurality of cell bodies, the centre of a circle place straight line of a plurality of hole bodies and the coincidence of the central line of second locating plate.
Furthermore, the femoral neck osteotomy positioning device further comprises a plurality of first positioning holes and a plurality of second positioning holes, the plurality of first positioning holes are arranged on the first positioning piece in a penetrating mode and located on the central line of the first positioning piece, and the plurality of second positioning holes are arranged on the second positioning piece in a penetrating mode and located on the central line of the second positioning piece.
Furthermore, the first positioning hole is located below the first positioning portion, and the second positioning hole is located below the second positioning portion.
Further, an included angle between a center line of the first positioning member and a center line of the second positioning member is between 30 ° and 60 °.
Further, the femoral neck osteotomy positioning device further comprises an indicating part, and the indicating part is arranged below the first positioning piece.
Further, the indication portion includes an indication arrow extending toward a side away from the first positioning member, an end portion of the indication arrow being located on a center line of the first positioning member.
Furthermore, the femoral neck osteotomy positioning device further comprises an extension portion which is rotatably arranged, a second through hole is formed in the end portion of the extension portion, the pin shaft penetrates through the first through hole and the second through hole, a plurality of third positioning holes are formed in the extension portion, and the third positioning holes are arranged along the length direction of the extension portion and located on the central line of the extension portion.
Further, femoral neck cuts bone positioner still includes the location chi structure, and the movably setting of location chi structure is provided with first scale value on the extension and relative extension detachably sets up, location chi structure, and the instruction portion corresponds the setting with first scale value.
Furthermore, the positioning rule structure further comprises a protruding part which is positioned below the third positioning part.
Furthermore, a second scale value is further arranged on the extending portion and located below the third positioning hole, and the bottom of the positioning ruler structure is in a working state aligned with the second scale value.
Further, an accommodating groove is formed in the side portion of the first positioning plate, and the extending portion can move into the accommodating groove.
By applying the technical scheme of the invention, the first through hole is formed in the first positioning piece, and the pin shaft penetrates through the first through hole and can be arranged in the first through hole in a pluggable manner. The second positioning piece and the first positioning piece are arranged at an angle, the third positioning piece is connected with both the first positioning piece and the second positioning piece, and the axis of the third positioning piece is perpendicular to the axis of the second positioning piece. Meanwhile, the first positioning piece, the second positioning piece and the third positioning piece are arranged in a coplanar manner. The first osteotomy groove is arranged on the third positioning piece and is arranged along the length direction of the third positioning piece, and the second osteotomy groove is arranged between the second positioning piece and the third positioning piece and extends along the length direction of the third positioning piece. The first osteotomy groove and the second osteotomy groove are arranged to enable accurate osteotomy to be performed. The femoral neck osteotomy positioning device of this embodiment is when using, the axis with first setting element and the corresponding setting of axis of thighbone, again with the axis of second setting element and the axis location of femoral head, a fixed position has been confirmed this moment, wear to establish the round pin axle on the thighbone and penetrate to in the first through-hole, then fixed the femoral neck effectively like this and cut bone positioner, the position of first osteotomy groove and second osteotomy groove is also fixed simultaneously, later when cutting the bone, can make the position of cutting the bone accurate. Therefore, the technical scheme of the application effectively solves the problems that the bone cutting position in the related technology is lack of intraoperative quantification, and the operation depends on experience, so that the operation effect is uncertain.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a front view of a schematic structural view of an embodiment of a femoral neck osteotomy positioning device in accordance with the present invention;
FIG. 2 shows a perspective view of the femoral neck resection positioning device of FIG. 1;
FIG. 3 shows a perspective view of a mounting extension of the femoral neck osteotomy positioning device of FIG. 1;
FIG. 4 shows a front view schematic of the femoral neck osteotomy positioning device of FIG. 3;
FIG. 5 is a schematic front view of the extension of FIG. 3 in the receiving slot;
FIG. 6 is a side view of the extension of FIG. 5 positioned within the receiving slot;
FIG. 7 shows a perspective view of the extension of FIG. 3;
FIG. 8 shows a perspective view of the femoral neck osteotomy positioning device of FIG. 1 with a positioning rule structure mounted thereto;
FIG. 9 shows a front view schematic diagram of the femoral neck osteotomy positioning device of FIG. 8 with a positioning rule structure installed;
fig. 10 shows a perspective view of the construction of the positioning rule of fig. 8.
Wherein the figures include the following reference numerals:
10. a first positioning member; 11. a first positioning plate; 12. accommodating a tank; 20. a first through hole; 30. a pin shaft; 40. a second positioning member; 41. an arc-shaped portion; 42. a second positioning plate; 50. a third positioning member; 51. a third positioning plate; 61. a first osteotomy groove; 62. a second osteotomy slot; 71. a first positioning portion; 711. a trough body; 72. a second positioning portion; 721. a porous body; 81. a first positioning hole; 82. a second positioning hole; 90. an indicating section; 91. an arrow is indicated; 100. an extension portion; 110. a second through hole; 120. a third positioning hole; 200. a positioning rule structure; 210. a first scale value; 220. a boss portion; 230. and a second scale value.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 and 2, in the present embodiment, the femoral neck osteotomy positioning device includes: a first positioning member 10, a first through hole 20, a pin 30, a second positioning member 40, a third positioning member 50, a first osteotomy groove 61, and a second osteotomy groove 62. The first through hole 20 is disposed on the first positioning member 10. The pin 30 is detachably inserted into the first through hole 20. The second positioning member 40 is angularly connected to the first positioning member 10, and an end of the second positioning member 40 is provided with an arc portion 41. The third positioning member 50 is connected with and coplanar with the first positioning member 10 and the second positioning member 40, and the axis of the third positioning member 50 is perpendicular to the axis of the second positioning member 40. The first resection groove 61 is disposed on the third positioning member 50 along the length direction of the third positioning member 50. The second osteotomy groove 62 is disposed between the second positioning member 40 and the third positioning member 50 along the length of the third positioning member 50.
By using the technical solution of this embodiment, the first through hole 20 is disposed on the first positioning element 10, and the pin 30 is disposed through the first through hole 20 and can be disposed in the first through hole 20 in a pluggable manner. The second positioning member 40 is disposed at an angle to the first positioning member 10, the third positioning member 50 is connected to both the first positioning member 10 and the second positioning member 40, and the axis of the third positioning member 50 is perpendicular to the axis of the second positioning member 40. Meanwhile, the first positioning member 10, the second positioning member 40, and the third positioning member 50 are disposed coplanar. The first osteotomy groove 61 is provided in the third positioning member 50 and is disposed along a length of the third positioning member 50, and the second osteotomy groove 62 is provided between the second positioning member 40 and the third positioning member 50 and extends along a length of the third positioning member 50. The arrangement of the first osteotomy groove 61 and the second osteotomy groove 62 enables accurate osteotomy to be performed. The femoral neck osteotomy positioning device of this embodiment is when using, the axis of first locating part 10 and the axis of thighbone correspond the setting, again with the axis of second locating part 40 and the axis location of femoral head, a fixed position has been confirmed this moment, wear to establish on the thighbone and penetrate to first through-hole 20 with round pin axle 30 in, then fixed femoral neck osteotomy positioning device effectively like this, first osteotomy groove 61 and second osteotomy groove 62's position is also fixed simultaneously, later when cutting the bone, can make the position of cutting the bone accurate. Therefore, the technical scheme of the embodiment effectively solves the problems that the position of the osteotomy in the related technology is lack of intraoperative quantification, and the operation effect is uncertain due to experience dependence in the operation.
The first resection groove 61 has a length of 10mm and the second resection groove 62 has a length of 15 mm. Wherein the length of the second resection groove 62 is calculated from the end of the first resection groove 61.
In other embodiments, the first resection groove 61 and the second resection groove 62 are equal in length.
As shown in fig. 1 and 2, in the present embodiment, the femoral neck osteotomy positioning device further includes a plurality of first positioning portions 71 and a plurality of second positioning portions 72, the plurality of first positioning portions 71 are disposed on the first positioning member 10 and arranged along a length direction of the first positioning member 10, the plurality of second positioning portions 72 are disposed on the second positioning member 40 and arranged along a length direction of the second positioning member 40, and the plurality of first positioning portions 71 and the plurality of second positioning portions 72 are disposed in a one-to-one correspondence. The arrangement of the first positioning portion 71 and the second positioning portion 72 enables the operator to perform positioning better, and further enables the positioning to be more precise. Meanwhile, for a femur having a small size, the operator can perform positioning by the first positioning portion 71 and the second positioning portion 72, i.e., observe through the first positioning portion 71 and the second positioning portion 72.
As shown in fig. 1 and fig. 2, in the present embodiment, the first positioning element 10 includes a first positioning plate 11, the second positioning element 40 includes a second positioning plate 42, the third positioning element 50 includes a third positioning plate 51, the first positioning portion 71 includes a slot body 711, the second positioning portion 72 includes a hole body 721, the slot body 711 penetrates through the first positioning plate 11, the hole body 721 penetrates through the second positioning plate 42, a center line of the first positioning plate 11 is located in a plane where end walls of the slot bodies 711 far from the second positioning element 40 are located, and a straight line where centers of circles of the hole bodies 721 are located coincides with a center line of the second positioning plate 42. The first positioning plate 11, the second positioning plate 42 and the third positioning plate 51 are simple in structure and convenient to set, and meanwhile, the femoral neck osteotomy positioning device can be in contact with the femur in an abutting mode better through the setting. The groove 711 penetrates through the first positioning plate 11, and the hole 721 penetrates through the second positioning plate 42, so that the femoral neck osteotomy positioning device can be used bilaterally, and the universality of the femoral neck osteotomy positioning device can be effectively improved.
As shown in fig. 1 and fig. 2, in the present embodiment, the femur neck osteotomy positioning device further includes a plurality of first positioning holes 81 and a plurality of second positioning holes 82, the plurality of first positioning holes 81 are disposed on the first positioning member 10 and located on a central line of the first positioning member 10, and the plurality of second positioning holes 82 are disposed on the second positioning member 40 and located on a central line of the second positioning member 40. The accuracy of location can further be improved in the setting of first locating hole 81 and second locating hole 82, and after the positioning of femoral neck osteotomy positioner, can penetrate to first locating hole 81 and second locating hole 82 in through the staple in, can further guarantee the position stability of femoral neck osteotomy positioner like this.
As shown in fig. 1 and 2, in the present embodiment, the first positioning hole 81 is located below the first positioning portion 71, and the second positioning hole 82 is located below the second positioning portion 72. The above arrangement enables the positions of the first positioning hole 81, the first positioning portion 71, the second positioning hole 82, and the second positioning portion 72 to be adjusted, and since the first positioning hole 81 and the second positioning hole 82 are located below the first positioning portion 71 and the second positioning portion 72, the fixing effect can be further improved.
As shown in fig. 1 and 2, in the present embodiment, an angle between a center line of the first positioning member 10 and a center line of the second positioning member 40 is between 30 ° and 60 °. The above-described angular arrangement enables a better fit with the femur. Specifically, in the present embodiment, the angle between the center line of the first positioning member 10 and the center line of the second positioning member 40 is 45 °. Of course, the angle may also be 30 °, 35 °, 40 °, 50 °, 55 °, or 60 °.
As shown in fig. 1 and 2, in the present embodiment, the femoral neck osteotomy positioning device further includes an indicating portion 90, and the indicating portion 90 is disposed below the first positioning member 10. The provision of the indicator portion 90 can further facilitate alignment by an operator.
As shown in fig. 1 and 2, in the present embodiment, the indicating portion 90 includes an indicating arrow 91, the indicating arrow 91 extends toward a side away from the first positioning member 10, and an end of the indicating arrow 91 is located on a center line of the first positioning member 10. The structure of the indication arrow 91 is simple, and the indication of the indication arrow 91 is more accurate.
As shown in fig. 3 to 10, in the present embodiment, the femoral neck osteotomy positioning device further includes an extension portion 100 rotatably disposed, an end of the extension portion 100 is provided with a second through hole 110, a pin 30 is inserted into the first through hole 20 and the second through hole 110, the extension portion 100 is provided with a plurality of third positioning holes 120, and the plurality of third positioning holes 120 are arranged along a length direction of the extension portion 100 and located at a center line of the extension portion 100. The provision of the extension 100 can further improve the accuracy of positioning.
As shown in fig. 3 to 10, in the present embodiment, the femoral neck osteotomy positioning device further includes a positioning rule structure 200, the positioning rule structure 200 is movably disposed on the extension portion 100 and detachably disposed relative to the extension portion 100, a first scale value 210 is disposed on the positioning rule structure 200, and the indication portion 90 is disposed corresponding to the first scale value 210. The extension portion 100 is an extension plate, the positioning rule structure 200 is movably disposed on the extension plate, and the indication portion 90 corresponds to the first scale value 210.
As shown in fig. 3 to 10, in the present embodiment, the positioning rule structure 200 further includes a protruding portion 220, and the protruding portion 220 is located below the third positioning member 50. The boss 220 corresponds with the maximum point of the lesser trochanter on the thighbone, and the positioning ruler structure 200 is still including the arcwall face that is located the boss 220 below, and the arcwall face corresponds the setting with the outer border of lesser trochanter, makes the positioning ruler structure 200 fix a position with the lesser trochanter through boss 220 and arcwall face like this, and then makes the rigidity of extension board, simultaneously because extension board and first locating piece 10 are articulated, and then make the stable position of first locating piece 10, can further guarantee the accuracy of location like this. The first scale value 210 is an angle value, and the indication arrow 91 is arranged corresponding to the first scale value 210, so that the adjustment of the angle can be performed.
As shown in fig. 3 to 10, in the present embodiment, the extending portion 100 is further provided with a second scale value 230, the second scale value 230 is located below the third positioning hole 120, and the bottom of the positioning rule structure 200 has a working state aligned with the second scale value 230. A second scale value 230 is provided on the extension 100, the second scale value 230 comprising a 10mm mark and a 15mm mark.
As shown in fig. 3 to 10, in the present embodiment, a receiving groove 12 is provided on a side portion of the first positioning plate 11, and the extending portion 100 is movable into the receiving groove 12. The provision of the accommodation groove 12 can stabilize the position of the first positioning plate 11. Specifically, when the osteotomy is performed, if the opening is small, the extension portion 100 needs to be housed in the housing groove 12.
As shown in fig. 8 and 9, in the present embodiment, the bottom of the extension portion 100 is provided with a limiting structure to prevent the positioning rule structure 200 from falling. Specifically, limit structure is protruding for the backstop, and the protruding setting of backstop is on the lateral wall of extension bottom, and the bellied simple structure of backstop can play spacing effect with the bottom of location chi structure 200, and then can prevent that location chi structure 200 from dropping. In view of the removal of the dipstick structure 200, in the present embodiment, a groove structure is provided at the bottom of the extension 100, so that the bottom of the extension 100 is divided into two parts which can be brought close to each other when pressed, thus enabling the mounting and removal of the dipstick structure 200.
Preferably, the end of the stopping protrusion away from the first positioning member is provided with a guiding slope, which further facilitates the installation of the positioning rule structure 200.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (13)
1. A femoral neck osteotomy positioning device, comprising:
a first positioning member (10);
a first through hole (20) provided on the first positioning member (10);
the pin shaft (30) is detachably arranged in the first through hole (20) in a penetrating way;
a second positioning member (40) angularly connected to the first positioning member (10), an end of the second positioning member (40) being provided with an arc portion (41);
the third positioning piece (50) is connected with the first positioning piece (10) and the second positioning piece (40) and is arranged in a coplanar manner, and the axis of the third positioning piece (50) is perpendicular to the axis of the second positioning piece (40);
A first osteotomy groove (61) disposed on the third positioning element (50) along a length direction of the third positioning element (50);
and a second osteotomy groove (62) disposed between the second positioning member (40) and the third positioning member (50) along a length direction of the third positioning member (50).
2. The femoral neck osteotomy positioning device of claim 1, further comprising a plurality of first positioning portions (71) and a plurality of second positioning portions (72), the plurality of first positioning portions (71) being disposed on the first positioning member (10) and arranged along a length direction of the first positioning member (10), the plurality of second positioning portions (72) being disposed on the second positioning member (40) and arranged along a length direction of the second positioning member (40), the plurality of first positioning portions (71) and the plurality of second positioning portions (72) being disposed in one-to-one correspondence.
3. The femoral neck osteotomy positioning device according to claim 2, wherein the first positioning member (10) comprises a first positioning plate (11), the second positioning member (40) comprises a second positioning plate (42), the third positioning member (50) comprises a third positioning plate (51), the first positioning portion (71) comprises a slot (711), the second positioning portion (72) comprises a hole (721), the slot (711) penetrates through the first positioning plate (11), the hole (721) penetrates through the second positioning plate (42), a center line of the first positioning plate (11) is located in a plane of end walls of the plurality of slots (711) far away from the second positioning member (40), and a straight line of centers of the plurality of holes (721) coincides with a center line of the second positioning plate (42).
4. The femoral neck osteotomy positioning device of claim 2, further comprising a plurality of first positioning holes (81) and a plurality of second positioning holes (82), wherein said plurality of first positioning holes (81) are disposed through said first positioning member (10) and located on a centerline of said first positioning member (10), and said plurality of second positioning holes (82) are disposed through said second positioning member (40) and located on a centerline of said second positioning member (40).
5. The femoral neck osteotomy positioning device of claim 4, wherein the first positioning hole (81) is located below the first positioning portion (71), and the second positioning hole (82) is located below the second positioning portion (72).
6. The femoral neck osteotomy positioning device of claim 1, wherein an angle between a centerline of said first positioning member (10) and a centerline of said second positioning member (40) is between 30 ° and 60 °.
7. The femoral neck resection positioning device according to claim 3, further comprising an indicator (90), wherein the indicator (90) is disposed below the first positioning member (10).
8. The femoral neck osteotomy positioning device of claim 7, wherein said indicator (90) comprises an indicator arrow (91), said indicator arrow (91) extending towards a side away from said first locator (10), an end of said indicator arrow (91) being located on a centerline of said first locator (10).
9. The femoral neck osteotomy positioning device according to claim 7, further comprising a rotatably disposed extension portion (100), wherein a second through hole (110) is disposed at an end of the extension portion (100), the pin (30) is disposed through the first through hole (20) and the second through hole (110), a plurality of third positioning holes (120) are disposed on the extension portion (100), and the plurality of third positioning holes (120) are disposed along a length direction of the extension portion (100) and are located at a center line of the extension portion (100).
10. The femoral neck osteotomy positioning device of claim 9, further comprising a positioning rule structure (200), wherein the positioning rule structure (200) is movably disposed on the extension portion (100) and is detachably disposed relative to the extension portion (100), the positioning rule structure (200) is disposed with a first scale value (210), and the indication portion (90) is disposed corresponding to the first scale value (210).
11. The femoral neck osteotomy positioning device of claim 10, wherein said sizer structure (200) further comprises a boss (220), said boss (220) being located below said third positioning member (50).
12. The femoral neck osteotomy positioning device of claim 11, wherein said extension portion (100) further comprises a second scale value (230), said second scale value (230) being disposed below said third positioning hole (120), a bottom portion of said positioning rule structure (200) having an operative condition aligned with said second scale value (230).
13. The femoral neck osteotomy positioning device according to claim 9, wherein a receiving slot (12) is provided on a side of said first positioning plate (11), said extension (100) being movable into said receiving slot (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210664290.4A CN114748127B (en) | 2022-06-14 | 2022-06-14 | Femoral neck osteotomy positioning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210664290.4A CN114748127B (en) | 2022-06-14 | 2022-06-14 | Femoral neck osteotomy positioning device |
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