The acetabular bone guide plate of personalized customizationTechnical field
The present invention relates to technical field of medical instruments, more particularly to a kind of acetabular bone guide plate of personalized customization.
Background technology
Acetabular bone guide plate related to the present invention, can be mounted in hip replacement surgery on acetabular bone is used to guide drill edgeThe central axial direction for acetabular bone drills so that acetabular component is implanted to precalculated position, such as U.S. Patent Bulletin the 8608749thIt is disclosed.The acetabular bone guide plate includes the main body and the guiding being extended by bottom part body upward of the acetabular fossa for covering acetabular bonePortion.The main body is designed by the threedimensional model of the basin bone of the acetabular bone and Periacetabular of patient, and which is included positioned at hipThe body for coordinating and the extension that acetabular bone edge is extended to by body in mortar nest and with acetabular fossa.The guide part is by bodyUpwardly extend setting.The guide part runs through the pilot hole for arranging with one along longitudinally.When acetabular cup is mounted on acetabular boneWhen upper, the center overlapping of axles of pilot hole bearing of trend place axis and acetabular cup the surface perpendicular to acetabular cup.
The acetabular bone guide plate is also with the reference portion that setting is upwardly extended by extension.It is described with reference to portion with longitudinally through settingThe through hole put, is available for Kirschner wire to pass through, with guide doctor adjust during drilling drill make the axis direction of drilling with gramFamily name's pin is parallel.Mating surface of the body with the three-dimensional coordinated with acetabular fossa, the mating surface are the acetabular fossa according to patientSurface designed in mirror image made by, can be fitted with the acetabular fossa surface of patient completely, acetabular bone guide plate is limited on acetabular bone.
Acetabular bone is only led with the cooperation on the surface of acetabular fossa by above-mentioned acetabular bone guide plate by the mating surface of the main body of acetabular bone guide platePlate is placed on acetabular bone, can be there is doctor and acetabular bone guide plate is placed in during acetabular fossa because manual operation causes hip by apparatusThere is deviation with precalculated position when mortar guide plate is placed on acetabular bone, cause the acetabular component of the bearing of trend and preoperative planning for drilling to be plantedThere is deviation effects surgical effect in the central shaft after entering；And because acetabular bone guide plate is coordinated with acetabular fossa using full laminating type,There is a problem of affecting precision of performing the operation because there is bony spur to cause acetabular bone guide plate positioning inaccurate on acetabular fossa.In addition, the patent is not yetDisclose the Design and manufacturing process of acetabular bone guide plate.
Therefore, it is necessory to provide a kind of acetabular bone guide plate of personalized customization, to overcome defect present in prior art.
The content of the invention
It is an object of the invention to it is a kind of be simple to manufacture, the acetabular bone guide plate of easy to operate and accurate positioning.
For achieving the above object, the acetabular bone guide plate of personalized customization of the invention is achieved by the following technical solution：A kind of acetabular bone guide plate of personalized customization, is mounted on patient's acetabular bone to guide acetabular component implantation, and which includes hemispheric cupBody, extended by cup and multiple registration arm of interruption-like setting, the abutting foot of setting protruded out and by bottom of cup by cupThe guide part of setting is upwardly extended, the registration arm is contacted with Periacetabular corresponding site, the acetabular bone for abutting foot and acetabular boneNest corresponding site is abutted.
Further, the acetabular bone guide plate of the personalized customization also includes the guiding that setting is upwardly extended by bottom of cupPortion, with longitudinally through the pilot hole for arranging, the bearing of trend place axis of the pilot hole is according to preoperative to the guide partSpecify setting, the bearing of trend place axis of the pilot hole and the central axes of acetabular bone.
Further, the bearing of trend that the registration arm has the location hole inclined through arranging, the location hole is locatedAxis obliquely arrange with the bearing of trend place axis of the pilot hole.
Further, the registration arm be on the edge by cup bending after be extended, the registration arm end toLower extension is provided with contact site, and the contact surface that the contact site is had positioned at its bottom and can be fitted with Periacetabular position is describedLocation hole is in fore-and-aft tilt shape on the contact site.
Further, the abutting part is to protrude out setting by the outer surface of cup, and its end is with abutting with acetabular fossaBearing surface.
Further, the acetabular bone guide plate of the personalized customization also includes the ribs in the registration arm.
Further, the acetabular bone guide plate of the personalized customization also includes the reinforcement for being convexly equipped in the guide part surrounding,The pilot hole is screwed hole.
Further, the acetabular bone guide plate of the personalized customization also includes the mark part on cup.
Further, the mark part is to protrude out setting upwards by cup edge, and the mark part is close located at cupAt the position of registration arm.
Further, the registration arm also has fore-and-aft tilt through the index aperture for arranging, the index aperture bearing of trendPlace axis and the pilot hole bearing of trend place diameter parallel.
The acetabular bone guide plate of personalized customization of the present invention is by being extended by cup edge and spaced registration arm and acetabular boneSurrounding position abutting and the abutting foot for protruding out setting by cup outer surface are abutted with acetabular fossa, by acetabular bone guide plate strong fixTo acetabular bone, accurate positioning is simple to operation, and can avoid because cup and acetabular fossa using when fitting spacing entirely because of acetabular fossaInterior bony spur causes the inaccurate problem of acetabular bone guide plate positioning.
Description of the drawings
Technical scheme, is carried out to technical solution of the present invention below in conjunction with accompanying drawing detailed for convenience of descriptionDescription.
Fig. 1 is the three-dimensional combination figure of the acetabular bone guide plate with hip joint of the present invention.
Fig. 2 is the three-dimensional exploded view of the acetabular bone guide plate shown in Fig. 1 and hip joint.
Fig. 3 is the axonometric chart of the acetabular bone guide plate shown in Fig. 2.
Fig. 4 is another axonometric chart of the acetabular bone guide plate shown in Fig. 2.
Another axonometric charts of the Fig. 5 for acetabular bone guide plate described in Fig. 3.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present inventionSpecific embodiment be described in detail.
Refer to shown in Fig. 1 to Fig. 5, the acetabular bone guide plate 100 of the personalized customization of the present invention is mounted on patient's basin bone 200Acetabular bone 202 on for guiding acetabular component to be implanted into, which includes hemispheric cup 1, the multiple positioning being extended by cup 1Arm 2, protruded out setting by cup 1 abut foot 3, the guide part 4 being extended by 1 bottom up of cup and on the cup 1Mark part 5.The acetabular bone guide plate 100 of the personalized customization is designing and pass through according to patient's acetabular bone threedimensional model of reconstructWhat rapid shaping technique was made into integration.
The cup 1 cover acetabular bone 202 acetabular fossa 203, its have be oppositely arranged inner surface 11, outer surface 12 andThe edge 10 of connection inner surface 11 and outer surface 12.The abutting foot is to protrude out setting by the outer surface of cup 1, and which has and setsIn its end and in irregular setting bearing surface 30.The bearing surface 30 can be pasted completely with 203 corresponding surface of acetabular fossaClose.The guide part 4 is to upwardly extend setting by the inner surface of 1 bottom of cup.The guide part 4 is substantially conical to be setPut, which has one longitudinally through the pilot hole 40 for arranging, and drill during surgical for is guided on acetabular bone 202.The guiding40 bearing of trend place axis A of hole is determined by preoperative planning, and the center overlapping of axles with acetabular bone 202.The pilot hole 40Bearing of trend place axis A also on implantation acetabular bone 202 (not shown) with acetabular component after and acetabular component central axes.The surrounding of the guide part 4 is additionally provided with multiple reinforcements 41, for improving the intensity of guide part 4, it is to avoid guide part 4 is made in processingOccur to rupture with middle.The pilot hole 40 is screwed hole.
The registration arm 2 be folded upward at by the edge 10 of cup 1 after it is extended in the horizontal direction.The registration arm2 are extended across acetabular bone edge 204 and cotyloid ligament 205 and are contacted with Periacetabular corresponding site 206,207, it include by1 edge 10 of cup extend and interruption-like setting the first registration arm 21 and the second registration arm 22.First registration arm 21 is wrappedInclude the first arm 210 extended in the horizontal direction after being bent by 1 edge of cup, located at 210 end of the first arm and haveFirst contact site 211 of the first contact surface 212 and the first ribs 213 located at 210 bottom of the first arm.Described first addsStrong rib 213 can improve the intensity of the first arm 210, prevent the first arm 210 from sending out when abutting with 206 corresponding site of PeriacetabularRaw fracture.
First contact site 211 is to be extended by 210 end of the first arm straight down, can be with Periacetabular206 corresponding sites are abutted.First contact surface 212 is in the irregular bottom for being located at the first contact site 211, can be with acetabular bone weekFit completely on the surface for enclosing 206 corresponding sites.Also extend through on first arm 210 and be provided with an index aperture 214, be available for Kirschner wire301 pass through.The index aperture 214 in fore-and-aft tilt shape on the first arm 210, its bearing of trend place axis B it is parallel with40 bearing of trend place axis A of pilot hole.Also have a fore-and-aft tilt fixed through first for arranging on first contact site 211Position hole 215, is available for Kirschner wire 300 through so that the position of Periacetabular 206 is located at into basin bone 200.First location hole 215Bearing of trend place axis C is obliquely arranged with 40 bearing of trend place axis A of pilot hole.First arm 210 is in widthThe cumulative tabular of degree is arranged.
Second registration arm 22 include being folded upward at by the edge 10 of cup 1 after in the horizontal direction extended secondArm 220, located at 220 end of the second arm and have the second contact surface 222 the second contact site 221 and be located at the second armSecond ribs 223 of 220 bottoms.Second arm 220 tabular cumulative in width is arranged.Second contact site 221It is to be extended by the second arm 220 straight down, can contacts with 207 corresponding site of Periacetabular of basin bone 200.Described secondContact surface 222 is located at 221 bottom of the second contact site, and is in irregular setting, can be with the surface of 207 corresponding site of PeriacetabularFit completely.Second registration arm 22 is also included through the second location hole 224 on the second contact site 221.DescribedTwo location holes 224 are arranged through the second contact site 221 in fore-and-aft tilt shape, are available for Kirschner wire 300 to pass through.Second location hole224 bearing of trend place axis D are obliquely arranged with the bearing of trend place axis A of pilot hole 40.Second location hole224 bearing of trend place axis D are obliquely arranged with 215 bearing of trend place axis C of the first location hole.
The mark part 5 is to protrude out setting upwards by the edge 10 of cup 1, for guiding doctor by acetabular bone guide plate 100It is mounted on acetabular bone 202.The mark part 5 is substantially arranged in arrow shaped, and which is located at cup 1 near the position of the second registration arm 22Place.The mark part 5 points to acetabular notch 208 when acetabular bone guide plate 100 is mounted on acetabular bone 202.
The acetabular bone guide plate 100 of personalized customization of the present invention under the guiding that mark part 5 points to acetabular notch 208, by theFirst contact site 211 of one registration arm 21 is abutted with 206 corresponding site of Periacetabular, the second contact site of the second registration arm 22221 are abutted with 207 corresponding site of Periacetabular and protrude out the abutting foot 3 of setting by 1 outer surface of cup and acetabular fossa 203 is supportedConnect, quickly 202 precalculated position of acetabular bone is mounted on by the acetabular bone guide plate 100 of personalized customization firm, and then guide doctor's drillingAnd implantation acetabular component, it is accurate positioning, simple, convenient, and using by the first contact surface of the first registration arm 21212nd, the second contact surface 222 of the second registration arm 22 fit with Periacetabular surface respectively and abut foot 3 bearing surface 30 withThe local laminating type of the surface laminating of acetabular fossa 203 is mounted on acetabular bone 202, can avoid being fitted with acetabular fossa entirely using cupWhen cause positioning inaccurate because of the bony spur in acetabular fossa.In addition, the acetabular bone guide plate 100 of personalized customization of the present invention is according to reconstructPatient's acetabular bone threedimensional model is designing and personalized accurate medical by made by rapid shaping technique, realizing.
To sum up, these are only presently preferred embodiments of the present invention, the scope of the present invention should not be limited with this, i.e., it is every according toThe simple equivalence changes made by claims of the present invention and present specification and modification, all should still belong to the present inventionIn the range of patent covers.