CN113813007B - Angle-adjustable femur perforating device - Google Patents
Angle-adjustable femur perforating device Download PDFInfo
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- CN113813007B CN113813007B CN202111192627.8A CN202111192627A CN113813007B CN 113813007 B CN113813007 B CN 113813007B CN 202111192627 A CN202111192627 A CN 202111192627A CN 113813007 B CN113813007 B CN 113813007B
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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
- A61B17/1659—Surgical rasps, files, planes, or scrapers
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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
- A61B17/1657—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
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1668—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
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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
- A61B17/171—Guides or aligning means for drills, mills, pins or wires for external fixation
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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
- A61B17/1728—Guides or aligning means for drills, mills, pins or wires for holes for bone plates or plate screws
Abstract
The invention provides an angle-adjustable femur perforating device, which comprises a tibia prosthesis module, a femur perforating module, an angle adjusting hole and an angle adjusting piece; the tibia prosthesis module is provided with a guide groove, the femur punching module comprises an arc-shaped main body and a convex strip formed on the arc-shaped main body, and the convex strip can be matched and inserted with the guide groove, so that the position of the femur punching module can be limited by comparing with the tibia prosthesis module; after the femur prosthesis is perforated and installed through the two guide through holes arranged on the femur perforation module, the center lines of the femur prosthesis and the tibia prosthesis can be ensured to be consistent; the setting of angle regulation hole and angle regulation spare can adjust the axis of direction through-hole and the bottom surface of shin bone prosthetic module and become the contained angle of settlement, and then can guarantee when knee buckling 90, the extending direction of thighbone prosthetic gim peg becomes the settlement angle with thighbone rear side cortex to the adaptability is better.
Description
Technical Field
The invention relates to the technical field of surgical instruments for unicondylar joint replacement, in particular to a femur perforating device with an adjustable angle.
Background
Unicondylar arthroplasty is a special type of artificial knee replacement, a replacement in which the scope of replacement is limited to unicondylar. The goal of unicondylar arthroplasty is to preserve as much of the normal articular structure as possible in order to obtain better functional recovery. The knee joint can be divided into an inner part and an outer part according to the shape and the function of the knee joint. The medial portion is formed by a femoral medial condyle, a medial meniscus and a medial tibial plateau, and the lateral portion is formed by a femoral lateral condyle, a lateral meniscus and a lateral tibial plateau. The shapes of the medial and lateral condyles of the knee joint of the human are different, and the functions are not completely the same. The medial condyle is generally high in bearing pressure, and the lateral condyle has multiple rotating functions.
For some knee patients, neither the medial nor the lateral condyles of the knee are damaged, but only one is damaged, and if other conditions are met, only the damaged lateral condyle may be replaced, which is a unicondylar joint replacement procedure. If the artificial joint prosthesis is replaced by the medial condyle unicondylar joint replacement, the structures such as the lateral condyle, the patella, the cruciate ligament and the like can be reserved, and the damage to the knee joint is small, so that the function of the knee joint of a patient is basically normal after the unicondylar joint replacement, and the inadaptation caused by total knee replacement is avoided. The unicondylar joint replacement has the characteristics of small trauma, quick recovery and low cost.
The structure of the unicondylar joint prosthesis is shown in fig. 1, and the unicondylar joint prosthesis comprises a femur prosthesis 01 and a tibia prosthesis 02, wherein the femur prosthesis 01 is provided with a femur curved surface 011, and two fixing bolts 012 are arranged on the back of the femur curved surface 011; the tibial prosthesis 02 comprises a tibial sliding surface 021, and a fixing plugboard 022 is arranged on the back surface of the tibial sliding surface 021. During operation, the worn tibial plateau needs to be cut and removed, the tibial prosthesis 02 is installed, and the tibial prosthesis is fixed through the fixing plugboard 022; the corresponding femoral head is polished to remove a layer of bone, holes are drilled, and the fixing bolts 012 are installed into the holes to realize the installation of the femoral prosthesis 01; after the prosthesis is installed, the femur curved surface 011 of the femur prosthesis 01 can move relatively to the tibia sliding surface 021 of the tibia prosthesis 02, so that the actions of walking, buckling, rotating and the like can be flexibly matched with the limb.
In order to ensure the operation effect, strict requirements are placed on the installation of the tibial prosthesis and the femoral prosthesis, wherein the following three conditions are critical: (1) The centerlines of the femoral prosthesis and the tibial prosthesis are consistent (as shown in fig. 2); (2) When the knee is bent by 90 degrees, the extending direction of the femoral prosthesis fixing bolt forms a specific angle with the rear cortex of the femur, and the angle is generally 34-36 degrees (shown in figure 3); (3) The femoral prosthesis preferably has no varus and valgus relative to the tibial prosthesis, with a maximum tolerance of 13 °. For the installation of the tibial prosthesis, accurate tibial plateau osteotomy can be realized by means of the existing tibial extramedullary positioning rod, and the placement position of the tibial prosthesis after osteotomy is accurate; in the case of femoral prostheses, no instrument for assisting in punching the femur by taking the tibia as a contrast is currently available, the punching is completely performed by visual inspection, the deviation is large, and the three key conditions cannot be perfectly met.
For the condition (2), due to the difference of the limb conditions of the patients and the difference of the shapes of the prostheses provided by different manufacturers, the extending direction of the femoral prosthesis fixing bolt and the specific angle formed by the cortex on the rear side of the femur are not fixed, and are 34 degrees, 35 degrees and 36 degrees in some cases, and for different cases, the optimal operation effect can be obtained only when the limb conditions or the shapes of the prostheses of the patients are matched.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defect that in the prior art, no instrument for assisting in punching the femur by taking the tibia as a contrast exists, and in reality, the femur cannot be punched by visual inspection, so that the femoral punching device with large deviation can be provided, and the femur can be accurately punched by taking the tibia as a contrast, and the angle is adjustable.
To this end, the invention provides an angularly adjustable femoral punch device comprising:
the cross-sectional profile of the tibial prosthesis module is substantially the same as the cross-sectional profile of the tibial prosthesis to be installed; the top surface is provided with a guide groove, and the bottom surface of the guide groove is longitudinally divided by the longitudinal midline of the tibial prosthesis module; the bottom surface is a plane suitable for being attached to the tibia osteotomy platform;
the femur perforation module comprises an arc-shaped main body and a convex strip formed on the outward side surface of the arc-shaped main body; the raised strips can be matched and spliced with the guide grooves; at least two guide through holes penetrate through the raised strips and the arc-shaped main body; the central axes of at least two guide through holes are coplanar, and the plane of the guide through holes is coplanar with the longitudinal central line and is perpendicular to the bottom surface;
at least one angle adjusting hole is arranged on the femur perforation module;
the angle adjusting piece is detachably arranged on the tibial prosthesis module and is provided with at least one pluggable and replaceable limiting column, and the limiting column can be inserted into the angle adjusting hole, so that the central axis of the guide through hole is limited to form a set angle with the bottom surface of the tibial prosthesis module.
As a preferred embodiment, the angle adjusting hole is disposed parallel to the guide through hole.
As a preferable scheme, after the convex strips are inserted into the guide grooves, the outer side surfaces of the arc-shaped main bodies positioned on the two sides of the convex strips are in contact connection with the top surfaces of the two side walls of the guide grooves.
As a preferable scheme, the cross section of the guide groove is of an inverted T shape.
As a preferred aspect, the angle adjusting member includes:
the adjusting seat can be matched and spliced with the guide groove, is movably arranged in the guide groove and is provided with an upwardly extending splicing column, the top end of the splicing column is provided with a splicing hole, and the inner wall of the splicing hole is a polygonal inner wall;
and at least one adjusting rod, one end of which is installed inside the plug hole in a pluggable manner, and the other end of which is connected with the angle limiting column.
As a preferable scheme, the angle adjusting hole is a blind hole, and a through hole with the diameter smaller than that of the angle adjusting hole is formed in the bottom of the blind hole.
As a preferred option, the inner side of the arcuate body is substantially contoured to the inner side of the femoral prosthesis to be installed.
As a preferable scheme, the tibial prosthesis also comprises a strip-shaped groove arranged on the tibial prosthesis module and a strip-shaped through hole arranged at the bottom of the strip-shaped groove.
As a preferred solution, the device further comprises a socket saw, wherein the socket saw is suitable for penetrating through the long-strip-shaped through hole to form a mounting groove on the tibia platform.
As a preferred scheme, the socket saw comprises a hand-held handle and a fan-shaped sawtooth structure arranged at one end of the hand-held handle; the thickness of the fan-shaped sawtooth structure is basically the same as the width of the strip-shaped through hole.
The technical scheme provided by the invention has the following advantages:
1. the perforating device comprises a tibial prosthesis module, a femoral perforating module, an angle adjusting hole and an angle adjusting piece; the cross-sectional profile of the tibial prosthesis module is substantially the same as the cross-sectional profile of the tibial prosthesis to be installed, so that the longitudinal midline thereof substantially coincides with the longitudinal midline of the tibial prosthesis to be installed; the femur punching module comprises an arc-shaped main body and a convex strip formed on the outward side surface of the arc-shaped main body, and the convex strip can be matched and inserted with a guide groove arranged on the tibia prosthesis module, so that the position of the femur punching module can be limited by contrasting with the tibia prosthesis module; the at least two guide through holes penetrate through the raised strips and the arc-shaped main body, the central axes of the at least two guide through holes are coplanar, and the planes of the at least two guide through holes are coplanar with the longitudinal central line of the tibial prosthesis module and are perpendicular to the bottom surface; thus, after the femoral prosthesis is perforated and installed through the two guide through holes, the central lines of the femoral prosthesis and the tibial prosthesis can be ensured to be consistent; the arrangement of the angle adjusting hole and the angle adjusting piece can adjust the central axis of the guide through hole and the bottom surface of the tibia prosthesis module to form a set included angle of 34-36 degrees, so that the extending direction of the femur prosthesis fixing bolt and the femur rear cortex form a set angle when the knee is bent by 90 degrees. The punching device can accurately punch the femur end by taking the tibia end as a contrast, and when the fixing bolt of the femur prosthesis is installed and enters the punched hole to be fixed, the center lines of the femur prosthesis and the tibia prosthesis can be ensured to be consistent, the extending direction of the fixing bolt of the femur prosthesis and the cortex of the femur backside can be ensured to form a set angle, and when the angle is different due to different limb conditions of a patient or the shapes of the prostheses produced by different manufacturers, the set angle can be adjusted by using the angle adjusting piece.
2. According to the punching device, after the convex strips are inserted into the guide grooves and are matched with the guide grooves in a plugging manner, the outer side surfaces of the arc-shaped main bodies positioned on the two sides of the convex strips are in contact connection with the top surfaces of the two side walls of the guide grooves; the design has the advantages that the detachable sliding connection of the tibial prosthesis module and the femoral perforating module is realized, and the femoral perforating module is limited to be incapable of turning inwards and outwards or swinging leftwards and rightwards relative to the tibial prosthesis module, so that holes punched through the guide through holes arranged on the femoral perforating module can be ensured, and when the fixing bolt of the femoral prosthesis is installed into the femoral prosthesis, the femoral prosthesis cannot be turned inwards and outwards relative to the tibial prosthesis by a larger angle, and the femoral prosthesis can be ensured to be in a range of 13 degrees.
3. The angle adjusting piece comprises an adjusting seat, an adjusting rod and a limiting column; the adjusting seat can be matched and spliced with the guide groove, the shape of the adjusting seat is matched with that of the guide groove, when the guide groove is U-shaped, the adjusting seat is square and can be matched, and when the guide groove is inverted T-shaped, the adjusting seat is inverted T-shaped and can be matched; the adjusting seat is provided with an upward extending plug-in column, the top end of the plug-in column is provided with a plug-in hole, and the inner wall of the plug-in hole is a polygonal inner wall; one end of the adjusting rod is installed inside the inserting hole in a pluggable manner, and the other end of the adjusting rod is connected with the angle limiting column; the adjusting rods can be designed into a plurality of pieces, the included angles between the two ends of the adjusting rods can be a plurality of pieces, and the lengths of the adjusting rods for being inserted into one ends of the inserting holes can be a plurality of pieces, so that when the guide through holes on the femur punching modules are required to be set to be a specific angle, the proper adjusting rods can be selected.
3. According to the punching device, the inner side surface of the arc-shaped main body is basically consistent with the outer shape of the inner side surface of the femur prosthesis to be installed, so that when the inner side surface of the arc-shaped main body is attached to the ground femur bone, the femur prosthesis can be simulated to the greatest extent, and the punching position can be accurately positioned.
Drawings
In order to more clearly illustrate the technical solutions in the prior art or in the embodiments of the present invention, the following brief description is given of the drawings used in the description of the prior art or the embodiments.
Fig. 1 is a schematic structural view of a unicondylar joint prosthesis of the prior art.
Fig. 2 is a schematic view of the structure of the femoral and tibial prostheses when the central lines of the femoral and tibial prostheses are aligned vertically after installation.
Fig. 3 is a schematic view of the structure of the femoral prosthetic securing peg extending at an angle of about 35 ° to the posterior cortex of the femur when the knee is flexed 90 °.
Fig. 4 is a schematic overall structure of the punching device in embodiment 1.
Fig. 5 is a perspective view of the femoral punch module of fig. 4.
Fig. 6 is a side view of fig. 5.
Fig. 7 is a rear view of fig. 5.
Fig. 8 is a schematic view of the tibial prosthesis module of fig. 4.
Fig. 9 is a perspective view of the angle adjuster.
Fig. 10 is a schematic overall structure of the punching device in embodiment 2.
Fig. 11 is a schematic view of the tibial prosthesis module of fig. 10.
Fig. 12 is a schematic view of the structure of the socket saw.
Reference numerals: 01. a femoral prosthesis; 011. a femoral curved surface; 012. a fixing bolt; 02. a tibial prosthesis; 021. a tibial sliding surface; 022. fixing the plugboard; 1. a tibial prosthetic module; 11. a top surface; 12. a guide groove; 13. a bottom surface of the groove; 14. a longitudinal midline; 15. a bottom surface; 2. a femur perforation module; 21. an arc-shaped main body; 22. a convex strip; 23. a guide through hole; 3. an angle adjusting hole; 31. a through hole; 4. an angle adjusting member; 41. a limit column; 42. an adjusting seat; 43. a plug-in column; 44. a plug hole; 45. an adjusting rod; 5. a rectangular groove; 51. a strip-shaped through hole; 6. a socket saw; 61. a handle; 62. a fan-shaped sawtooth structure.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
Example 1
The present embodiment provides an angularly adjustable femoral punch device, as shown in fig. 4-8, comprising a tibial prosthesis module, a femoral punch module, an angular adjustment aperture, and an angular adjustment member.
Wherein the cross-sectional profile of the tibial prosthesis module 1 is substantially the same as the cross-sectional profile of the tibial prosthesis to be installed, having a top surface 11 and a bottom surface 15; wherein, a guide groove 12 is arranged on the top surface 11, and the bottom surface 13 of the guide groove 12 is longitudinally divided by a longitudinal midline 14 of the tibial prosthesis module 1; the bottom surface 15 is a planar surface adapted to be snugly placed on the tibial osteotomy platform.
The femur perforating module 2 comprises an arc-shaped main body 21 and a convex strip 22 formed on the outward side surface of the arc-shaped main body 21; the raised strips 22 can be matched and inserted with the guide grooves 12; two guide through holes 23 penetrate the convex strips 22 and the arc-shaped main body 21; the central axes of the two guide through holes 23 are coplanar, and the planes of the two guide through holes are coplanar with the longitudinal central line 14 and perpendicular to the bottom surface 15.
At least one angle adjusting hole 3 is arranged on the femur perforation module 2; the angle adjusting piece 4 is detachably mounted on the tibial prosthesis module 1 and is provided with at least one pluggable and replaceable limiting column 41, and the limiting column 41 can be inserted into the angle adjusting hole 3, so that the central axis of the limiting guide through hole 23 is limited to form a set angle with the bottom surface 15 of the tibial prosthesis module 1.
Preferably, the angle adjusting hole 3 is disposed in parallel with the guide through hole 23.
The punching device of this embodiment has a cross-sectional profile of the tibial prosthesis module 1 substantially identical to that of the tibial prosthesis to be installed, so that its longitudinal midline 14 substantially coincides with that of the tibial prosthesis to be installed; the femur perforating module 2 comprises an arc-shaped main body 21 and a raised strip 22 formed on the outward side surface of the arc-shaped main body 21, wherein the raised strip 22 can be matched and inserted with a guide groove 12 arranged on the tibia prosthesis module 1, so that the position of the femur perforating module 2 can be defined by comparing with the tibia prosthesis module 1; at least two guide through holes 23 penetrate through the raised strips 22 and the arc-shaped main body 21, the central axes of the at least two guide through holes 23 are coplanar, and the planes of the at least two guide through holes are coplanar with the longitudinal central line 14 of the tibial prosthesis module 1 and are perpendicular to the bottom surface 15; thus, after the femoral prosthesis is installed by punching through the two guide through holes 23, the center lines of the femoral prosthesis and the tibial prosthesis can be ensured to be consistent.
The arrangement of the angle adjusting hole 3 and the angle adjusting piece 4 can adjust the central axis of the guide through hole 23 and the bottom surface 15 of the tibial prosthesis module 1 to form a set included angle of 34-36 degrees, so as to ensure that the extending direction of the femoral prosthesis fixing bolt 012 and the femoral posterior cortex form a set angle when the knee is bent by 90 degrees. By using the punching device of the embodiment, the tibia end can be used as a contrast, the femur end can be accurately punched, and when the fixing bolt of the femur prosthesis is installed and enters into the punched hole for internal fixation, the consistency of the central lines of the femur prosthesis and the tibia prosthesis can be ensured, the extending direction of the fixing bolt of the femur prosthesis and the cortex of the femur rear side can be ensured to form a set angle, and when the set angle is different due to different shapes of the prosthesis produced by patients or different manufacturers, the angle adjusting piece can be used for adjusting.
In this embodiment, after the protruding strip 22 is inserted into the guide groove 12, the outer side surfaces of the arc-shaped bodies 21 located at both sides of the protruding strip 22 are in contact connection with the top surfaces of both side walls of the guide groove 12. The design has the advantages that the detachable sliding connection of the tibia prosthesis module 1 and the femur perforating module 2 is realized, and the femur perforating module 2 is limited to be incapable of turning inwards and outwards or swinging leftwards and rightwards relative to the tibia prosthesis module 1, so that the holes punched through the guide through holes 23 arranged on the femur perforating module 2 can be ensured, and when the fixing bolts of the femur prosthesis are installed into the holes, the femur prosthesis cannot have larger-angle inwards and outwards relative to the tibia prosthesis, and the femoral prosthesis can be ensured to be in a range of 13 degrees.
As a variant, the cross section of the guide groove 12 is of inverted T-shape (not shown).
In this embodiment, the angle adjusting member 4 includes an adjusting seat 42 and an adjusting lever 45. The adjusting seat 42 can be matched and spliced with the guide groove 12, is movably arranged in the guide groove 12 and is provided with a splicing column 43 extending upwards, the top end of the splicing column 43 is provided with a splicing hole 44, and the inner wall of the splicing hole 44 is a polygonal inner wall; at least one adjusting rod 45 is provided, one end of the adjusting rod is installed in the inserting hole 44 in a pluggable manner, and the other end of the adjusting rod is connected with the angle limiting column 41.
The adjusting seat 42 can be matched and inserted with the guide groove 12, the shape of the adjusting seat is matched with that of the guide groove 12, when the guide groove 12 is U-shaped, the adjusting seat 42 is in a matched square shape (when the guide groove 12 is in an inverted T shape, the adjusting seat 42 is in a matched inverted T shape); the adjusting seat 42 is provided with an upward extending plug-in post 43, the top end of the plug-in post 43 is provided with a plug-in hole 44, and the inner wall of the plug-in hole 44 is a polygonal inner wall; one end of the adjusting rod 45 is installed in the inserting hole 44 in a pluggable manner, and the other end of the adjusting rod is connected with the angle limiting column 41; the adjusting rods 45 may be designed in plural numbers, and the included angles between the two ends of the adjusting rods may be plural, and the lengths of the ends of the adjusting rods for being inserted into the insertion holes 44 may be plural, so that when the guiding through holes 23 on the femur drilling module 2 need to be set to a specific angle, the appropriate adjusting rods 45 may be selected.
The angle adjusting hole 3 is a blind hole, and a through hole 31 with the diameter smaller than that of the angle adjusting hole 3 is formed at the bottom of the blind hole. The through holes 31 are arranged, so that the insertion depth of the limiting column 41 can be conveniently observed, and when the limiting column 41 is inconvenient to take down, the limiting column 41 can be ejected out in an auxiliary manner through the through holes 31 by other objects.
Preferably, the inner side of the arcuate body 21 substantially conforms to the shape of the inner side of the femoral prosthesis to be installed. When the inner side surface of the arc-shaped main body 21 is attached to the ground femur bone, the femur prosthesis can be simulated to the greatest extent, and the punching position can be accurately positioned.
The using method of the femur perforating device with the adjustable angle in the embodiment is as follows:
firstly, realizing accurate tibia plateau osteotomy by means of the existing tibia extramedullary locating rod, and polishing the femur at the corresponding position;
accurately placing the tibial prosthesis module 1 with the femoral punch module 2 mounted on the osteotomy platform (selecting a proper adjusting rod 45 according to a predetermined angle, and completing the mounting of the angle adjusting piece 4);
the femur punching module 2 is adjusted to slide relative to the tibia prosthesis module 1, so that the inner side surface of the arc-shaped main body 21 is attached to the ground femur bone;
bending the knee of the affected limb of the patient, exposing the two guide through holes 23, and punching the femur by means of the two guide through holes 23; or after bending knee and exposing two guide through holes 23 on the affected limb of the patient, the tibial prosthesis module 1 is pulled away, and the femur is perforated by the two guide through holes 23;
after the punching is finished, the tibia prosthesis module 1 and the femur punching module 2 are removed, and subsequent installation and debugging of the tibia prosthesis and the femur prosthesis are performed.
Example 2
This embodiment provides a femur punching device with adjustable angle, which is an improvement on the basis of embodiment 1, as shown in fig. 10-12, and the difference is that: the tibia prosthesis module also comprises a strip-shaped groove 5 arranged on the tibia prosthesis module 1 and a strip-shaped through hole 51 arranged at the bottom of the strip-shaped groove 5, wherein the position of the strip-shaped through hole is matched with the position of a fixing plugboard 022 fixedly arranged on the back of the tibia prosthesis 02.
Also included is a socket saw 6, the socket saw 6 being adapted to provide a mounting slot in the tibial plateau through the elongate through hole 51. The socket saw 6 includes a handle 61 and a scalloped saw tooth structure 62 provided at one end of the handle 61; the thickness of the scalloped structures 62 is substantially the same as the width of the elongated through holes 51.
The punching device in this embodiment has the advantage that the position of the mounting hole for fixing the mounting position of the insert plate 022 is provided at the same time, and the punching can be completed by grooving the position of the strip-shaped through hole 51 by using the socket saw 6, so that the position is accurate and the operation is convenient.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. An angularly adjustable femoral punch device comprising:
a tibial prosthesis module (1) having a cross-sectional profile substantially identical to the cross-sectional profile of the tibial prosthesis to be installed; the top surface (11) has a guide groove (12), the groove bottom surface (13) of the guide groove (12) being divided longitudinally by a longitudinal center line (14) of the tibial prosthesis module (1); the bottom surface (15) is a plane suitable for being fitted and placed on the tibia osteotomy platform;
the femur perforation module (2) comprises an arc-shaped main body (21) and a convex strip (22) formed on the outward side surface of the arc-shaped main body (21); the raised strips (22) can be matched and inserted with the guide grooves (12); at least two guide through holes (23) are provided penetrating the protruding strips (22) and the arc-shaped main body (21); the central axes of at least two guide through holes (23) are coplanar, and the plane of the guide through holes is coplanar with the longitudinal central line (14) and is perpendicular to the bottom surface (15);
at least one angle adjusting hole (3) is arranged on the femur perforation module (2);
an angle adjusting piece (4) which is detachably arranged on the tibial prosthesis module (1) and is provided with at least one pluggable and replaceable limiting column (41), wherein the limiting column (41) can be inserted into the angle adjusting hole (3) so as to limit the central axis of the guide through hole (23) to form a set angle with the bottom surface (15) of the tibial prosthesis module (1);
the angle adjusting hole (3) is arranged in parallel with the guide through hole (23);
after the raised strips (22) are inserted into the guide grooves (12), the outer side surfaces of the arc-shaped main bodies (21) positioned on the two sides of the raised strips (22) are in contact connection with the top surfaces of the two side walls of the guide grooves (12).
2. The perforating device as recited in claim 1 wherein: the cross section of the guide groove (12) is of an inverted T shape.
3. Perforating apparatus as claimed in claim 1 or 2, characterized in that said angle-adjusting member (4) comprises:
the adjusting seat (42) can be matched and spliced with the guide groove (12), is movably arranged in the guide groove (12) and is provided with an upwardly extending splicing column (43), the top end of the splicing column (43) is provided with a splicing hole (44), and the inner wall of the splicing hole (44) is a polygonal inner wall;
and at least one adjusting rod (45), one end of which is installed in the plug hole (44) in a pluggable manner, and the other end of which is connected with the limit column (41).
4. The perforating device as recited in claim 1 wherein: the angle adjusting hole (3) is a blind hole, and a through hole (31) with the diameter smaller than that of the angle adjusting hole (3) is formed in the bottom of the blind hole.
5. The perforating device as recited in claim 1 wherein: the inner side surface of the arc-shaped main body (21) is basically consistent with the shape of the inner side surface of the femur prosthesis to be installed.
6. The perforating device as recited in claim 1 wherein: the tibia prosthesis module also comprises a strip-shaped groove (5) arranged on the tibia prosthesis module (1) and a strip-shaped through hole (51) arranged at the bottom of the strip-shaped groove (5), wherein the position of the strip-shaped through hole is matched with the position of a fixing plugboard (022) fixedly arranged on the back of the tibia prosthesis module (02).
7. The perforating device as recited in claim 6 wherein: the tibia platform also comprises a tooth socket saw (6), wherein the tooth socket saw (6) is suitable for penetrating through the long-strip-shaped through hole (51) to form a mounting groove on the tibia platform.
8. The perforating device as recited in claim 7 wherein: the socket saw (6) comprises a hand-held handle (61) and a fan-shaped sawtooth structure (62) arranged at one end of the hand-held handle (61); the thickness of the fan-shaped sawtooth structure (62) is basically the same as the width of the strip-shaped through hole (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192627.8A CN113813007B (en) | 2021-10-13 | 2021-10-13 | Angle-adjustable femur perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192627.8A CN113813007B (en) | 2021-10-13 | 2021-10-13 | Angle-adjustable femur perforating device |
Publications (2)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799950A (en) * | 2015-04-30 | 2015-07-29 | 上海昕健医疗技术有限公司 | Personalized minimally-invasive knee joint positioning guide plate based on medical image |
| CN208851495U (en) * | 2017-12-03 | 2019-05-14 | 贵阳中医学院第二附属医院 | Femur side front inclination angle measurement mechanism in Replacement of Hip Joint |
| CN210019809U (en) * | 2019-03-05 | 2020-02-07 | 福建医科大学附属第一医院 | Single-condyle replacement femoral prosthesis provided with metal filling block |
| CN112370223A (en) * | 2020-10-29 | 2021-02-19 | 北京市春立正达医疗器械股份有限公司 | Adjustable femur trial condyle and system comprising same |
| CN213697080U (en) * | 2020-06-03 | 2021-07-16 | 首都医科大学宣武医院 | Non-fixed platform knee joint unicondylar replacement 3D positioning guide plate |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201006590D0 (en) * | 2010-04-20 | 2010-06-02 | Goodfellow John | Unicondylar knee replacement |
| CN104068948A (en) * | 2014-07-18 | 2014-10-01 | 山东威高骨科材料有限公司 | Single-condylus prosthesis |
| CN208426163U (en) * | 2017-09-13 | 2019-01-25 | 上海市东方医院 | Knee prosthesis shin bone hypsokinesis osteotomy positioning auxiliary device |
| EP3784150A1 (en) * | 2018-04-26 | 2021-03-03 | Christiaan Rudolf Oosthuizen | Cutting and drilling template for unicondylar knee arthroplasty |
| CN209301232U (en) * | 2018-11-14 | 2019-08-27 | 上海昕健医疗技术有限公司 | Tibial osteotomy guide assembly |
| CN109966030A (en) * | 2019-03-08 | 2019-07-05 | 山东新华联合骨科器材股份有限公司 | Single condyle artificial knee joint prosthesis system based on 3D printing |
| CN110538010A (en) * | 2019-09-17 | 2019-12-06 | 北京爱康宜诚医疗器材有限公司 | Unicondylar knee joint prosthesis |
| CN211485103U (en) * | 2019-10-28 | 2020-09-15 | 北京市春立正达医疗器械股份有限公司 | Tibial plateau holds in palm and uses its unicondylar knee joint prosthesis |
| CN111467089A (en) * | 2020-05-07 | 2020-07-31 | 苏州微创关节医疗科技有限公司 | Interchangeable type single-condyle femoral prosthesis system and knee joint system |
| CN213941067U (en) * | 2020-09-02 | 2021-08-13 | 李先安 | Knee joint prosthesis shin bone side positioner |
-
2021
- 2021-10-13 CN CN202111192627.8A patent/CN113813007B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799950A (en) * | 2015-04-30 | 2015-07-29 | 上海昕健医疗技术有限公司 | Personalized minimally-invasive knee joint positioning guide plate based on medical image |
| CN208851495U (en) * | 2017-12-03 | 2019-05-14 | 贵阳中医学院第二附属医院 | Femur side front inclination angle measurement mechanism in Replacement of Hip Joint |
| CN210019809U (en) * | 2019-03-05 | 2020-02-07 | 福建医科大学附属第一医院 | Single-condyle replacement femoral prosthesis provided with metal filling block |
| CN213697080U (en) * | 2020-06-03 | 2021-07-16 | 首都医科大学宣武医院 | Non-fixed platform knee joint unicondylar replacement 3D positioning guide plate |
| CN112370223A (en) * | 2020-10-29 | 2021-02-19 | 北京市春立正达医疗器械股份有限公司 | Adjustable femur trial condyle and system comprising same |
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