CN117860337A - Acetabular guide plate device - Google Patents
Acetabular guide plate device Download PDFInfo
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- CN117860337A CN117860337A CN202410279590.XA CN202410279590A CN117860337A CN 117860337 A CN117860337 A CN 117860337A CN 202410279590 A CN202410279590 A CN 202410279590A CN 117860337 A CN117860337 A CN 117860337A
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- hole
- guide
- acetabular
- mounting seat
- positioning
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 39
- 238000005553 drilling Methods 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims description 24
- 210000000588 acetabulum Anatomy 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000004394 hip joint Anatomy 0.000 description 8
- 238000001356 surgical procedure Methods 0.000 description 3
- 208000006820 Arthralgia Diseases 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 206010073767 Developmental hip dysplasia Diseases 0.000 description 1
- 208000015813 Familial avascular necrosis of femoral head Diseases 0.000 description 1
- 206010048873 Traumatic arthritis Diseases 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 206010039073 rheumatoid arthritis Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- A61B17/1735—Guides or aligning means for drills, mills, pins or wires for rasps or chisels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4609—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Transplantation (AREA)
- Dentistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention provides an acetabular guide plate device, comprising: the mounting seat is connected with human bone; the depth limiting piece comprises a positioning seat and a positioning through hole arranged on the positioning seat, and the positioning seat is movably arranged on the mounting seat along the axis direction of the mounting seat so as to enable the positioning through hole to be close to or far away from the mounting seat to limit the drilling depth of the drill bit; dodge the structure, set up on the mount pad and dodge the location through-hole. The technical scheme of the application effectively solves the problem that the depth is inconvenient to adjust when drilling holes in the acetabular fossa in the related technology.
Description
Technical Field
The invention relates to the technical field of hip joint guide plates, in particular to an acetabular guide plate device.
Background
The hip joint is one of the largest, most important joints of the human body, which is subjected to a significant portion of the body weight. However, diseases such as osteoarthritis, rheumatoid arthritis, aseptic necrosis of femoral head, traumatic arthritis, congenital acetabular dysplasia, etc. can cause hip joint pain and loss of function thereof, thereby seriously affecting the life of patients.
At present, the therapeutic effect of artificial hip arthroplasty has been fully established and developed as a reliable treatment through more than thirty years of clinical practice. The artificial joint replacement is mainly used for relieving joint pain, correcting deformity, recovering and improving the movement function of joints, and the artificial hip joint prosthesis used in the operation comprises an acetabular cup, a femoral stem, a lining, a ball head and the like.
However, even after the artificial hip joint replacement operation is performed, the effects of the artificial hip joint replacement operation cannot be influenced by factors such as improper postoperative rehabilitation, poor matching degree of prosthesis selection and the like, so that a secondary revision operation is required. The secondary revision surgery is more risky for the patient and more difficult to control, so that avoiding the secondary revision surgery as much as possible becomes a key target of the primary hip replacement surgery. Among these, the initial stability, long-term stability, etc. of acetabular cup, femoral stem prosthesis replacement is one of the most critical factors affecting the life of artificial hip joint prostheses.
In the prior art, in order to determine the accurate installation position of an acetabular cup, an acetabular cup needs to be polished by using an acetabular file, and before the acetabular cup is polished, holes need to be drilled on the acetabular cup, and the drilling depth needs to be changed due to different bone substances of different patients, and at present, the drilling depth is generally changed by changing different acetabular drilling guide plates.
Disclosure of Invention
The invention mainly aims to provide an acetabular guide plate device for solving the problem that the depth is inconvenient to adjust when drilling holes in an acetabular fossa in the related art.
In order to achieve the above object, the present invention provides an acetabular guide plate device comprising: the mounting seat is connected with human bone; the depth limiting piece comprises a positioning seat and a positioning through hole arranged on the positioning seat, and the positioning seat is movably arranged on the mounting seat along the axis direction of the mounting seat so as to enable the positioning through hole to be close to or far away from the mounting seat to limit the drilling depth of the drill bit; dodge the structure, set up on the mount pad and dodge the location through-hole.
Further, the positioning through hole comprises a first hole body, a second hole body and a third hole body, and the first hole body, the second hole body and the third hole body are arranged at equal intervals.
Further, the acetabular guide plate device further comprises a threaded structure, and the threaded structure is arranged between the positioning seat and the mounting seat.
Further, the relief structure includes a relief through hole, and the depth limiting member rotates to align the relief through hole with the positioning through hole.
Further, the acetabular guide plate device further comprises a base connected with the bone of the human body, and the mounting seat is adjustably connected with the base in a swinging mode and has a swinging adjusting state and a locking working state.
Further, the acetabular guide plate device further comprises a connecting portion, the connecting portion comprises a first connecting rod, the first end of the first connecting rod is connected with the mounting seat, the acetabular guide plate device further comprises a cover body, the second end of the first connecting rod is clamped between the cover body and the base, when the cover body is separated from the second end of the connecting portion, the mounting seat is in a swinging adjusting state, and when the second end of the connecting portion is clamped and fixed between the base and the cover body, the acetabular guide plate device is in a locking working state.
Further, the acetabular guide plate device further comprises a guide part, the guide part is used for guiding the acetabular file, and the guide part is arranged above the depth limiting piece and connected with the connecting part.
Further, the guide part is detachably connected with the connecting part, and the mounting seat is detachably connected with the connecting part; the acetabulum guide plate device is provided with a drilling state and a file grinding state; when the acetabular guide plate device is in a drilling state, the guide part is separated from the connecting part, the mounting seat is connected with the connecting part, the depth limiting piece is connected with the mounting seat through a threaded structure, and the drill bit penetrates through the positioning through hole and drills a plurality of guide holes in the acetabular fossa; when the acetabulum guide plate device is in a rasping state, the mounting seat is separated from the connecting part, the guide part is connected with the connecting part, and the acetabulum rasps a plurality of guide holes until the guide holes are rasped.
Further, the acetabular guide plate device further comprises a limiting structure, the connecting portion further comprises a second connecting rod connected with the first connecting rod, the first end of the second connecting rod is connected with the first connecting rod, and the limiting structure is arranged between the second end of the second connecting rod and the guiding portion.
Further, the limit structure comprises a neck shrinkage part and a limit table which are arranged at the second end of the second connecting rod, a limit space arranged on the guide part and an installation long hole arranged on the outer surface of the guide part, wherein the limit space is communicated with the installation long hole, the guide part is provided with a disassembly position and a locking position, when the guide part is positioned at the disassembly position, the limit table is correspondingly arranged with the installation long hole, the limit table can extend into the limit space through the installation long hole, and when the guide part is positioned at the locking position, the limit table is positioned in the installation long hole and is crossed with the installation long hole.
By applying the technical scheme of the invention, the mounting seat is connected with human bone. The depth limiting piece comprises a positioning seat and a positioning through hole, the positioning seat is connected with human bone through a mounting seat, the positioning seat is movably arranged on the mounting seat along the axis direction of the mounting seat, the positioning through hole is arranged on the positioning seat, the positioning seat moves so that the positioning through hole is far away from or near the mounting seat, and the drilling depth of a drill bit is further limited. The avoidance structure is arranged on the mounting seat and used for avoiding the positioning through hole. Through foretell setting, limit dark piece moves on the mount pad along the axis of mount pad, can drive the location through-hole and be close to or keep away from the mount pad, and then the location through-hole can be close to or keep away from with human bone, promptly for the drill bit stretches through the adjustment that the degree of depth when the location through-hole drills on human bone can be more convenient. The avoidance structure can avoid the positioning through hole, so that the drill bit can be contacted with human bone after penetrating out of the positioning through hole, and drilling is realized. Therefore, the technical scheme effectively solves the problem that the depth is inconvenient to adjust when drilling holes in the acetabular fossa in the related technology.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 shows a schematic perspective view of an embodiment of an acetabular guide plate device according to the invention;
FIG. 2 shows a schematic perspective view of the connection of the acetabular guide plate device of FIG. 1;
FIG. 3 shows a schematic perspective view of a guide portion of the acetabular guide plate device of FIG. 1;
FIG. 4 illustrates a schematic perspective view of the acetabular guide plate device of FIG. 1 without a cover installed;
FIG. 5 shows a schematic perspective view of a mounting seat of the acetabular guide plate device of FIG. 1;
FIG. 6 illustrates an exploded view of the base and cover of the acetabular guide device of FIG. 1;
FIG. 7 shows a schematic perspective view of the cover of the acetabular guide plate device of FIG. 6;
fig. 8 shows a schematic perspective view of the guide, neck and stop of the acetabular guide device of fig. 1.
Wherein the above figures include the following reference numerals:
10. a mounting base; 20. a depth limiter; 21. a positioning seat; 22. positioning the through hole; 221. a first hole body; 222. a second aperture body; 223. a third hole body; 30. an avoidance structure; 31. avoiding the through hole; 40. a thread structure; 50. a base; 60. a connection part; 61. a first connecting rod; 62. a second connecting rod; 70. a cover body; 80. a guide part; 90. a limit structure; 91. a neck part is contracted; 92. a limiting table; 93. a limit space; 94. and (5) mounting a long hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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 in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one 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 specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
As shown in fig. 1, in the present embodiment, the acetabular guide plate device includes: mount 10, depth stop 20, and relief structure 30. The mounting base 10 is connected with human bone. The depth limiting member 20 includes a positioning seat 21 and a positioning through hole 22 provided on the positioning seat 21, the positioning seat 21 being movably provided on the mounting seat 10 along the axial direction of the mounting seat 10 such that the positioning through hole 22 is close to or far from the mounting seat 10 to limit the depth of drilling of the drill bit. The avoidance structure 30 is provided on the mount 10 and avoidance of the positioning through-hole 22.
By applying the technical scheme of the embodiment, the mounting seat 10 is connected with human bone. The depth limiting member 20 comprises a positioning seat 21 and a positioning through hole 22, wherein the positioning seat 21 is connected with human bone through the mounting seat 10, the positioning seat 21 is movably arranged on the mounting seat 10 along the axial direction of the mounting seat 10, the positioning through hole 22 is arranged on the positioning seat 21, and the positioning seat 21 moves so that the positioning through hole 22 is far away from or close to the mounting seat 10, and further the drilling depth of a drill bit is limited. The avoidance structure 30 is disposed on the mounting base 10, and is used for avoiding the positioning through hole 22. Through the arrangement, the depth limiting piece 20 moves on the mounting seat 10 along the axis of the mounting seat 10, and can drive the positioning through hole 22 to be close to or far away from the mounting seat 10, so that the positioning through hole 22 can be close to or far away from the bone of the human body, namely, the depth of the drill bit extending through the positioning through hole 22 when drilling on the bone of the human body can be adjusted. The avoidance structure 30 can avoid the positioning through hole 22, so that the drill bit can contact with human bone after penetrating out of the positioning through hole 22, and drilling is realized. Therefore, the technical scheme of the embodiment effectively solves the problem that the depth is inconvenient to adjust when drilling holes in the acetabular fossa in the related art.
The bone of the human body can be bone at the hip joint of the human body.
It should be noted that, the drill bit includes bit body and limit deep platform, and limit deep platform encircles the outside that sets up at the bit body, limit deep platform and positioning seat 21 spacing cooperation, and then can restrict drilling depth when positioning seat 21 is close to or keep away from human bone.
As shown in fig. 1 and 4, in the present embodiment, the positioning through hole 22 includes a first hole body 221, a second hole body 222, and a third hole body 223, and the first hole body 221, the second hole body 222, and the third hole body 223 are disposed at equal intervals. Through the above arrangement, the drill bit is respectively passed through the first hole 221, the second hole 222 and the third hole 223 to be in contact with the bone of the human body, and three holes of a required depth are drilled on the bone of the human body, and then a spherical surface can be determined through the fourth hole, the fifth hole and the sixth hole, so that the installation position of the acetabular cup can be determined.
As shown in fig. 1 and 4, in the present embodiment, the acetabular guide plate device further includes a screw structure 40, and the screw structure 40 is disposed between the positioning seat 21 and the mounting seat 10. The above arrangement facilitates movement of the positioning seat 21 on the mounting seat 10.
In the present embodiment, a threaded column is disposed at the bottom of the inner cavity of the mounting seat 10, and a threaded hole is disposed at the bottom of the positioning seat 21. The positioning through hole 22 is formed in the outer periphery of the threaded hole, and the avoiding through hole 31 is formed in the outer periphery of the threaded column. Of course, in the embodiment not shown in the drawings, the threaded column may be disposed at the bottom of the positioning seat 21, the threaded hole is disposed at the bottom of the inner cavity of the mounting seat 10, and accordingly, the positioning through hole is disposed at the outer periphery of the threaded column, and the avoiding through hole is disposed at the outer periphery of the threaded hole.
As shown in fig. 1, 4 and 5, in the present embodiment, the relief structure 30 includes a relief through hole 31, and the depth limiting member 20 rotates to align the relief through hole 31 with the positioning through hole 22. The avoidance through holes 31 enable the drill to pass through the mounting seat 10 to be in contact with human bone, so that drilling on human bone can be completed. The rotation of the depth limiting member 20 aligns the avoidance through hole 31 with the positioning hole, and the first hole body 221, the second hole body 222 and the third hole body 223 are arranged at equal intervals, so that more adjustment of different depths can be realized when the depth limiting member 20 rotates to adjust the drilling depth.
Specifically, more adjustment of different depths means that the avoidance through hole 31 comprises a first avoidance hole body, a second avoidance hole body and a third avoidance hole body, the first avoidance hole body is arranged corresponding to the first hole body 221, the second avoidance hole body is arranged corresponding to the second hole body 222, the third avoidance hole body is arranged corresponding to the third hole body 223, when the drilling depth needs to be adjusted, the positioning seat 21 rotates to the first avoidance hole body to the second hole body 222, the second avoidance hole body corresponds to the third hole body 223, the third avoidance hole body corresponds to the first hole body 221, adjustment of the drilling depth once can be achieved, the positioning seat 21 is continuously rotated to the first avoidance hole body to the third hole body 223, the second avoidance hole body corresponds to the first hole body 221, the third avoidance hole body corresponds to the second hole body 222, adjustment of the drilling depth once can be achieved again, and further adjustment of different depths can be achieved by rotating the positioning seat 21.
It should be noted that, in this embodiment, the mounting base 10 is a first hemisphere, a first hemispherical cavity is disposed on a side of the first hemisphere facing the positioning base, the positioning base 21 is a second hemisphere, a second hemispherical cavity is disposed on a side of the second hemisphere away from the positioning base, and the positioning base is movably disposed in the first hemispherical cavity. The first hole body 221, the second hole body 222 and the third hole body 223 are arranged at equal intervals, the connecting line between the axis of the first hole body 221 and the spherical center of the first hemispherical cavity is a first connecting line, the connecting line between the axis of the second hole body 222 and the spherical center of the first hemispherical cavity is a second connecting line, the connecting line between the axis of the third hole body 223 and the spherical center of the first hemispherical cavity is a third connecting line, the included angle between the first connecting line and the second connecting line, the included angle between the second connecting line and the third connecting line and the included angle between the third connecting line and the fourth connecting line are all 60 degrees, namely, the positioning seat 21 rotates by 60 degrees, the approach or the separation of the positioning seat 21 and the human bone can be realized, and the drill bit can pass through the positioning seat 21 and the mounting seat 10 to be in contact with the human bone.
As shown in fig. 1, 4 and 6, in the present embodiment, the acetabular guide device further includes a base 50 connected to the bone of the human body, and the mount 10 is adjustably connected to the base 50 by swinging, and the mount 10 has a swing-adjusted state and a locking-operated state. The base 50 is fixed to human bone, and the mount pad 10 is swingably connected with the base 50, so that the mount pad 10 can be close to or far away from human bone, and then the positioning through holes 22 can be driven to be close to or far away from human bone, i.e. different positions for changing drill holes can be realized, so that according to drill holes, more acetabular cup mounting positions can be determined, i.e. after the acetabular guide plate device is used for drilling, more acetabular cup mounting positions can be determined, and the mounting positions of the acetabular cups can be more in accordance with physiological positions of human bone. When the mounting seat 10 is in the swing adjusting state, the mounting seat 10 can swing relative to the base 50, when the mounting seat 10 is in the locking working state, the mounting seat 10 is fixed in position, and a drill bit can pass through the positioning through hole 22 and the avoidance through hole 31 for drilling.
As shown in fig. 1, 2, 4 and 7, in the present embodiment, the acetabular guide device further includes a connection portion 60, the connection portion 60 includes a first connection rod 61, a first end of the first connection rod 61 is connected with the mount 10, the acetabular guide device further includes a cover 70, a second end of the first connection rod 61 is sandwiched between the cover 70 and the base 50, the mount 10 is in a swing adjustment state when the cover 70 is separated from the second end of the connection portion 60, and is in a locking operation state when the second end of the connection portion 60 is clamped and fixed between the base 50 and the cover 70. The second end of the first connecting rod 61 is clamped by the cover 70 and the second end of the first connecting rod 61 or the cover 70 and the base 50, so that the mounting seat 10 can be switched between a swing adjusting state and a locking working state, and the position of the mounting seat 10 relative to the bone of the human body can be adjusted, and the fixing can be realized after the adjustment.
Preferably, the second end of the first connecting rod 61 is a sphere, a first cavity is provided on a side of the cover 70 facing the base 50, a second cavity is provided on a side of the base 50 facing the cover 70, and the sphere is located between the first cavity and the second cavity. The surface of spheroid is provided with a plurality of first recesses, and the interval is provided with a plurality of first bar posts on the first cavity, and the interval is provided with a plurality of second bar posts on the second cavity. The first groove is matched with the first bar column and the second bar column in an abutting mode, so that after the first connecting rod swings, the ball body can be stably clamped between the first cavity and the second cavity under the action of the first groove, the first bar column and the second bar column. The base 50 is also provided with a first avoidance groove, the cover 70 is provided with a second avoidance groove, and a part of the structure of the first connecting rod 61 is positioned between the first avoidance groove and the second avoidance groove, so that the first connecting rod 61 is convenient to connect with the base 50 and the cover 70, and the first connecting rod 61 can swing between the base 50 and the cover 70.
Specifically, after the base 50 is fixed to the bone of the human body by the kirschner wire, the cover 70 passes through the kirschner wire and moves to approach the base 50, and then the part of the structure of the clamping part arranged on the side part of the cover 70 is inserted into the limit groove on the base 50, so that the cover 70 is connected with the base 50 under the action of the kirschner wire, the clamping part and the limit groove. The clamping part comprises a clamping arm and a clamping hook, the clamping arm is rotatably arranged on the cover body 70, and the clamping hook is inserted into the limiting groove.
As shown in fig. 1, 3, 4 and 8, in the present embodiment, the acetabular guide device further includes a guide portion 80, the guide portion 80 is used for guiding the acetabular file, and the guide portion 80 is disposed above the depth limiter 20 and connected to the connecting portion 60. The guide 80 is capable of guiding the acetabular file such that the acetabular file can be trimmed out of the acetabular cup mounting location in the acetabular fossa. When the connecting part 60 swings, the guiding part 80 can be driven to swing, so that the acetabular file can conveniently determine the coping position on the acetabular fossa.
Preferably, the guide portion 80 is a guide post, a guide groove is formed in the guide post, the guide groove comprises a first limiting surface, a second limiting surface and a third limiting surface which are sequentially connected, the first limiting surface and the third limiting surface are opposite and are arranged in parallel, the guide groove extends along the direction from human bone to the mounting seat, and the second limiting surface is an arc-shaped surface. This makes contact of the pilot portion 80 with the acetabular file more stable. The first bar column, the second bar column and the third bar column extend along the direction from the first limit surface to the third limit surface.
As shown in fig. 1 to 4, 7 and 8, in the present embodiment, the guide portion 80 is detachably connected to the connection portion 60, and the mount 10 is detachably connected to the connection portion 60. The acetabular guide plate device has a drilling state and a rasping state. When the acetabular guide plate device is in a drilling state, the guide portion 80 is separated from the connecting portion 60, the mounting seat 10 is connected with the connecting portion 60, the depth limiting member 20 is connected with the mounting seat 10 through the threaded structure 40, and the drill bit passes through the positioning through hole 22 and drills a plurality of guide holes in the acetabular fossa. When the acetabular guide device is in a rasping state, the mounting seat 10 is separated from the connecting portion 60, the guide portion 80 is connected with the connecting portion 60, and the acetabulum rasps a plurality of guide holes until the plurality of guide holes are rasped. The guide portion 80 and the mounting seat 10 are both detachably connected with the connecting portion 60, so that the acetabular guide plate can be conveniently switched between a drilling state and a rasping state.
It should be noted that, the drill bit respectively passes through the first hole 221, the second hole 222 and the third hole 223 to contact with the bone of the human body, and three holes with required depth are drilled on the bone of the human body, namely, the guiding holes. Preferably, the acetabulum rasps the plurality of guide holes until the plurality of guide holes are simultaneously ground off to obtain the installation space required for installing the acetabular cup. As shown in fig. 1 to 4, in the present embodiment, the acetabular guide plate device further includes a limit structure 90, the connecting portion 60 further includes a second connecting rod 62 connected to the first connecting rod 61, a first end of the second connecting rod 62 is connected to the first connecting rod 61, and the limit structure 90 is disposed between a second end of the second connecting rod 62 and the guide portion 80. After the limiting structure 90 enables the second connecting rod 62 to be connected with the guide portion 80, the position of the guide portion 80 can be fixed, so that the guide portion 80 can guide the acetabular file conveniently, and a plurality of guide holes can be ground in the acetabular file.
Preferably, the first end of the first connecting rod 61 is provided with a mounting block, the mounting block comprises a first block and a second block, the first block is arranged at one end of the second block away from the mounting seat 10, and the external dimension of the first block is smaller than the external dimension of the second block. The mounting seat 10 is provided with a mounting groove and an avoidance groove communicated with the mounting groove, the first block is inserted into the avoidance groove, and the second block is inserted into the mounting groove, so that the first connecting rod 61 can be connected with the mounting seat 10. The first connecting rod 61 is further provided with a mounting post near the first end, and the two kirschner wires penetrate through the mounting post to be connected with the bones of the human body. The mounting column is positioned between the first block and the junction of the second connecting rod 62 and the first connecting rod 61, and two Kirschner wires passing through the mounting column are respectively positioned at two sides of the second connecting rod 62. The second connecting rod 62 includes a connecting section and an extending section connected with the connecting section, the connecting section extends along the direction from the bone of the human body to the first connecting rod 61, the extending section extends along the direction from the base 50 to the mounting seat 10, a preset included angle exists between the connecting section and the extending section, and the preset included angle ranges from 120 ° to 145 °, such as 120 °, 125 °, 130 °, 135 ° or 145 °, although other values are also possible.
As shown in fig. 3 and 8, in the present embodiment, the limit structure 90 includes a constricted portion 91 and a limit table 92 provided at the second end of the second connecting rod 62, a limit space 93 provided on the guide portion 80, and an installation long hole 94 provided on the outer surface of the guide portion 80, the limit space 93 being communicated with the installation long hole 94, wherein the guide portion 80 has a mounting and dismounting position and a locking position, when the guide portion 80 is located at the mounting and dismounting position, the limit table 92 is provided corresponding to the installation long hole 94, the limit table 92 can be extended into the limit space 93 through the installation long hole 94, and when the guide portion 80 is located at the locking position, the limit table 92 is located in the installation long hole 94 and is disposed intersecting the installation long hole 94. When the guide part 80 is at the dismounting position, the mounting long hole 94 on the guide part 80 corresponds to the limiting table 92, the guide part 80 is pushed towards the direction close to the limiting table 92, the limiting table 92 enters the limiting space 93, then the guide part 80 is rotated, the mounting long hole 94 is adjusted to be crossed with the limiting table 92, the guide part 80 is at the locking position, and the guide part 80 can guide the acetabular file.
Specifically, the constricted portion 91 is a cylinder, and the diameter of the constricted portion 91 is smaller than the height of the mounting long hole 94, so that the constricted portion 91 can relatively rotate within the mounting long hole 94 with respect to the mounting long hole 94, and the mounting long hole 94 does not interfere with the rotation of the constricted portion 91.
The stopper 92 is elongated and aligned with the longitudinal direction of the mounting slot 94. The length of the limiting table 92 is smaller than or equal to the length of the mounting long hole 94, the height of the limiting table 92 is smaller than or equal to the height of the mounting long hole 94, and the length of the mounting long hole 94 is larger than the height of the mounting long hole 94. The limiting table 92 includes a first side, a second side, a third side, and a fourth side that are sequentially connected, where the first side is opposite to the second side, the third side is opposite to the fourth side, the fourth side is connected to the first side, and a length direction of the first side extends along a direction from the guide portion 80 to the mounting seat 10. The second side surface and the fourth side surface are cambered surfaces.
Preferably, the limiting structure 90 further includes a third connecting rod hinged to the guiding portion 80, a first limiting block hinged to the first end of the third connecting rod, a second limiting block hinged to the second end of the third connecting rod, and a stop block, where the first limiting block, the second limiting block, and the stop block are all disposed in the limiting space 93. The first limiting block is located between the stop block and the second limiting block. When the guide portion 80 is at the dismounting position, the guide portion 80 rotates, the second side face extrudes the second limiting block to move towards the direction of the mounting long hole 94, the first limiting block moves along with the third connecting rod towards the direction close to the mounting long hole 94 until the second limiting block is separated from the second side face, then the second side face is in butt fit with the first limiting block, the second limiting block moves towards the direction close to the mounting long hole 94 until the first side face is in limit fit with the stop block, and the stop table 92 is clamped between the second limiting block and the stop table.
The guide portion 80 is provided with an installation box on a side facing the second connecting rod 62, and the installation slot 94 and the limiting space 93 are both provided on the installation box. The lateral part of mounting box is provided with the backstop screw rod, and the backstop screw rod inserts in the spacing space and cooperates with the second stopper butt for second stopper and spacing platform 92 butt cooperation avoid guide 80 to rotate, make guide 80 when the guide to the acetabular file, guide 80 can the stable in position. When the guide part 80 needs to be disassembled, the stop screw is separated from the second limiting block, the guide part 80 is rotated, the second limiting block can enter the avoidance groove on the side wall of the mounting box under the pushing of the limiting table 92, the guide part 80 is rotated to the position limiting table 92 to be aligned with the mounting long hole 94, then the limiting table 92 is pulled out from the mounting long hole 94, and the guide part 80 is separated from the second connecting rod 62.
In use, the acetabular guide device of the embodiment secures the base 50 to bone of a person, then places the second end of the first connecting rod 61 into the base, swings the first connecting rod 61, and then connects the cover 70 to the base 50 such that the second end of the first connecting rod 61 is clamped between the cover 70 and the base 50. The position of the positioning seat 21 is adjusted, so that the depth of the drill hole of the drill bit can be adjusted. After the drilling is completed, the positioning seat 21 is disassembled, the guide part 80 is mounted on the second connecting rod 62, the guide part 80 guides the acetabular file, and the acetabular file grinds the guide hole drilled by the drill bit.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An acetabular guide plate device, comprising:
the mounting seat (10), the said mounting seat (10) is connected with human bone;
the depth limiting piece (20), the depth limiting piece (20) comprises a positioning seat (21) and a positioning through hole (22) arranged on the positioning seat (21), the positioning seat (21) is movably arranged on the mounting seat (10) along the axis direction of the mounting seat (10) so as to enable the positioning through hole (22) to be close to or far from the mounting seat (10) to limit the depth of drilling of a drill bit;
the avoidance structure (30) is arranged on the mounting seat (10) and is used for avoiding the positioning through hole (22).
2. The acetabular guide plate device according to claim 1, wherein the positioning through hole (22) includes a first hole body (221), a second hole body (222), and a third hole body (223), and the first hole body (221), the second hole body (222), and the third hole body (223) are disposed at equal intervals.
3. The acetabular guide device of claim 1, further comprising a threaded structure (40), the threaded structure (40) being disposed between the positioning seat (21) and the mounting seat (10).
4. An acetabular guide plate arrangement according to claim 3, characterised in that the relief structure (30) comprises a relief through hole (31), the depth stop (20) being rotated to align the relief through hole (31) with the locating through hole (22).
5. The acetabular guide device of claim 4, further comprising a base (50) coupled to the bone of the person, the mount (10) being adjustably coupled to the base (50) by a swinging motion, the mount (10) having a swing adjustment state and a locked operating state.
6. The acetabular guide device of claim 5, further comprising a connecting portion (60), the connecting portion (60) comprising a first connecting rod (61), the first end of the first connecting rod (61) being connected to the mount (10), the acetabular guide device further comprising a cover (70), the second end of the first connecting rod (61) being sandwiched between the cover (70) and the base (50), the mount (10) being in a swing-adjusted state when the cover (70) is separated from the second end of the connecting portion (60), the second end of the connecting portion (60) being clamped between the base (50) and the cover (70), the mount being in a locked-on state.
7. The acetabular guide device of claim 6, further comprising a guide portion (80), the guide portion (80) being configured to guide an acetabular file, the guide portion (80) being disposed above the depth stop (20) and connected to the connecting portion (60).
8. The acetabular guide plate device of claim 7 wherein,
the guide part (80) is detachably connected with the connecting part (60), and the mounting seat (10) is detachably connected with the connecting part (60);
the acetabulum guide plate device is provided with a drilling state and a file grinding state;
wherein, when the acetabular guide plate device is in the drilling state, the guide part (80) is separated from the connecting part (60), the mounting seat (10) is connected with the connecting part (60), the depth limiting piece (20) is connected with the mounting seat (10) through the thread structure (40), and the drill bit passes through the positioning through hole (22) and drills a plurality of guide holes in the acetabular fossa;
when the acetabulum guide plate device is in the rasping state, the mounting seat (10) is separated from the connecting part (60), the guide part (80) is connected with the connecting part (60), and the acetabulum rasps a plurality of guide holes until a plurality of guide holes are rasped.
9. The acetabular guide device of claim 8, further comprising a spacing structure (90), the connecting portion (60) further comprising a second connecting rod (62) connected to the first connecting rod (61), a first end of the second connecting rod (62) being connected to the first connecting rod (61), the spacing structure (90) being disposed between a second end of the second connecting rod (62) and the guide portion (80).
10. The acetabular guide plate device according to claim 9, characterized in that the limit structure (90) comprises a necking portion (91) and a limit table (92) which are arranged at the second end of the second connecting rod (62), a limit space (93) arranged on the guide portion (80) and an installation long hole (94) arranged on the outer surface of the guide portion (80), the limit space (93) is communicated with the installation long hole (94), wherein the guide portion (80) has a dismounting position and a locking position, when the guide portion (80) is positioned at the dismounting position, the limit table (92) is correspondingly arranged with the installation long hole (94), the limit table (92) can extend into the limit space (93) through the installation long hole (94), and when the guide portion (80) is positioned at the locking position, the limit table (92) is positioned in the installation long hole (94) and is crossly arranged with the installation long hole (94).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410279590.XA CN117860337B (en) | 2024-03-12 | 2024-03-12 | Acetabular guide plate device |
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| CN202410279590.XA CN117860337B (en) | 2024-03-12 | 2024-03-12 | Acetabular guide plate device |
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| CN117860337B CN117860337B (en) | 2024-06-14 |
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|---|---|
| CN117860337B (en) | 2024-06-14 |
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