CN105125274A - Anatomical femoral trochanter locking steel plate - Google Patents
Anatomical femoral trochanter locking steel plate Download PDFInfo
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- CN105125274A CN105125274A CN201510629974.0A CN201510629974A CN105125274A CN 105125274 A CN105125274 A CN 105125274A CN 201510629974 A CN201510629974 A CN 201510629974A CN 105125274 A CN105125274 A CN 105125274A
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention discloses an anatomical femoral trochanter locking steel plate, relates to the technical field of medical instruments, and aims to avoid the condition that the steel plate needs to be repeatedly bent for shaping before an operation and to simplify the operation. The main technical scheme is that the anatomical femoral trochanter locking steel plate comprises a trochanter part and a femoral part connected with the trochanter part, wherein the trochanter part is adaptive to the anatomical shape of the rear part of a human femoral trochanter, and the femoral part is adaptive to the anatomical shape of the rear part of a human femoral shaft; a big trochanter tongue flap, a small trochanter tongue flap, a first connecting part and a second connecting part are arranged on the trochanter part; the first connecting part is arranged between the big trochanter tongue flap and the small trochanter tongue flap; the second connecting part is arranged between the big trochanter tongue flap and the femoral part. The anatomical femoral trochanter locking steel plate is mainly used for fixing femoral trochanter fracture blocks.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of anatomical form femoral trochanter locking steel plate.
Background technology
Intertrochanteric fracture, be one of clinical common orthopaedic disease, old people is multiple, and for the intertrochanteric fracture of polo-neck (age >75 year), the current clinical Replacement of Hip Joint that adopts is treated more.
Before carrying out Replacement of Hip Joint, often need to be fixed greater trochanter of femur and trochantinian sclerite, rebuild the large lesser trochanter of femur, with the large lesser trochanter of femur for reference, determine the depth of artificial femoral prosthesis implanted femur, thus ensure the stability of the accuracy that femoral prosthesis is implanted and postoperative artificial joint, in prior art, adopt blade plate to fix sclerite.
But, adopt blade plate to fix sclerite, before surgery, repeatedly must bend moulding, steel plate just can be made to be fitted in complicated operation on femoral trochanter.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of anatomical form femoral trochanter locking steel plate, and main purpose avoids operation consent repeatedly must bend moulding to steel plate, makes simple to operate.
For achieving the above object, the present invention mainly provides following technical scheme:
The embodiment of the present invention provides a kind of anatomical form femoral trochanter locking steel plate, comprises
Rotor portions and the femur portion be connected with described rotor portions, the dissection profile at described rotor portions and human femur under loading rotor rear is suitable, and the dissection profile at described femur portion and Shaft of human femur rear is suitable;
Wherein, described rotor portions is provided with greater trochanter gate, lesser trochanter gate, the first connecting portion and the second connecting portion, described first connecting portion is placed between described greater trochanter gate and described lesser trochanter gate, described second connecting portion is placed between described greater trochanter gate and described femur portion, described greater trochanter gate is used for fitting with human femur under loading greater trochanter, described lesser trochanter gate is used for fitting with human femur under loading lesser trochanter, described first connecting portion is used for fastening with human femur under loading intertrochanteric crest, and described second connecting portion is used for fitting with the lateral surface of human femur under loading; Described femur portion is used for fitting with described Shaft of human femur.
Further, described first connecting portion comprises outward extending first snap fit of a side based on described rotor portions, described first snap fit is used for fastening with described human femur under loading intertrochanteric crest, and the quantity of described first snap fit is multiple, and spaced apart along a side of described rotor portions.
The quantity of described first snap fit is 3, each described first snap fit is provided with the first lock hole, and described first lock hole is taken as the first tapped through hole, the second tapped through hole and the 3rd tapped through hole successively from described greater trochanter gate to the direction of described lesser trochanter gate;
The extended line of described first tapped through hole is for extending to the anterolateral surface of described human femur under loading, and the extended line of described second tapped through hole and described 3rd tapped through hole is for extending to the pulp cavity of described human femur under loading.
Further, described rotor portions is also provided with multiple first through hole, each described first through hole is between adjacent two described first snap fits, and described first through hole is used for plugging external stability instrument.
Further, described second connecting portion comprises outward extending second snap fit of another side based on described rotor portions, described second snap fit is used for fitting with the lateral surface of described human femur under loading, and the quantity of described second snap fit is multiple, and spaced apart along another side of described rotor portions.
The quantity of described second snap fit is 5, each described second snap fit is provided with the second lock hole, and described second lock hole is taken as the 4th tapped through hole, the 5th tapped through hole, the 6th tapped through hole, the 7th tapped through hole and the 8th tapped through hole successively from described greater trochanter gate to the direction of described lesser trochanter gate;
The extended line of described 4th tapped through hole is used for extending to the trochiterian anteromedial surface of described human femur under loading, the extended line of described 5th tapped through hole is for extending to the pulp cavity of described human femur under loading, the extended line of described 6th tapped through hole is used for extending to described human femur under loading intertrochanteric crest, the extended line of described 7th tapped through hole is for extending to the pulp cavity of described human femur under loading, and the extended line of described 8th tapped through hole is used for extending to described human femur under loading lesser trochanter.
Further, described rotor portions is also provided with multiple second through hole, each described second through hole is between adjacent two described second snap fits, and described second through hole is used for plugging external stability instrument.
Further, described greater trochanter gate is provided with the 3rd lock hole, described 3rd lock hole is 2, and 2 described 3rd lock holes are taken as the 9th tapped through hole and the tenth tapped through hole successively, described 9th tapped through hole and described tenth tapped through hole arranged in a crossed manner.
Particularly, the cross sectional shape of described lesser trochanter gate is C shape.
Further, described lesser trochanter gate is provided with the 4th lock hole, described 4th lock hole is 2, and 2 described 4th lock holes are taken as the 11 tapped through hole and the 12 tapped through hole successively, described 11 tapped through hole and described 12 tapped through hole arranged in a crossed manner.
Further, described rotor portions is provided with the 5th lock hole, described 5th lock hole is between described first connecting portion and described second connecting portion, described 5th lock hole comprises multipair 13 tapped through hole, often pair of described 13 tapped through hole is symmetrical and arranged in a crossed manner, adjacent two on the contrary crisscross to described 13 tapped through hole.
Particularly, described rotor portions and described femur portion are platy structure.
By technique scheme, anatomical form femoral trochanter locking steel plate of the present invention at least has following beneficial effect:
The anatomical form femoral trochanter locking steel plate that the embodiment of the present invention provides, comprise interconnective rotor portions and femur portion, and the profile at rotor portions and human femur under loading rotor rear is suitable, the profile at femur portion and Shaft of human femur rear is suitable, wherein, the greater trochanter gate of rotor portions is used for fitting with human femur under loading greater trochanter, lesser trochanter gate is used for fitting with human femur under loading lesser trochanter, first connecting portion is used for fastening with human femur under loading intertrochanteric crest, second connecting portion is used for fitting with the lateral surface of human femur under loading, and femur portion is used for fitting with Shaft of human femur, thus make the overall surface that can fit tightly at femoral trochanter of this locking steel plate, avoid and adopt existing blade plate, repeatedly must bend moulding to it before using, it just can be made to fit in the drawback of femoral trochanter, simple to operation.
Accompanying drawing explanation
The structural representation of a kind of anatomical form femoral trochanter locking steel plate that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is fitted in the structural representation at femoral bone tuberosity rear for a kind of anatomical form femoral trochanter locking steel plate that the embodiment of the present invention provides;
Fig. 3 is the right TV structure schematic diagram in Fig. 2.
Detailed description of the invention
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the detailed description of the invention of anatomical form femoral trochanter locking steel plate of the present patent application, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Below in conjunction with drawings and Examples, the present invention is described in further detail.As shown in Figure 1, embodiments provide a kind of anatomical form femoral trochanter locking steel plate, the femur portion 2 comprising rotor portions 1 and be connected with rotor portions 1, rotor portions 1 is suitable with the profile at femur human femur under loading rotor rear, and femur portion 2 is suitable with the profile at Shaft of human femur rear; Wherein, rotor portions 1 is provided with greater trochanter gate 11, lesser trochanter gate 12, first connecting portion 13 and the second connecting portion 14, first connecting portion 13 is placed between greater trochanter gate 11 and lesser trochanter gate 12, second connecting portion 14 is placed between greater trochanter gate 11 and femur portion 2, greater trochanter gate 11 is for fitting with human femur under loading greater trochanter, lesser trochanter gate 12 is for fitting with human femur under loading lesser trochanter, first connecting portion 13 is for fastening with human femur under loading intertrochanteric crest, and the second connecting portion 14 is for fitting with the lateral surface of human femur under loading; Femur portion 2 is for fitting with Shaft of human femur 4.
This anatomical form femoral trochanter locking steel plate, is applicable to Replacement of Hip Joint, the femoral trochanteric fracture of immobilized patients, and the rotor portions 1 of this anatomical form femoral trochanter locking steel plate is suitable with the dissection profile at human femur under loading rotor rear; Femur portion 2 is suitable with the profile at Shaft of human femur rear, " suitable " herein can be interpreted as: rotor portions 1 can be fitted in the rear of femoral trochanter completely, femur portion 2 can be fitted in the rear of femoral shaft completely, during intertrochanteric fracture row Replacement of Hip Joint, first anatomical form femoral trochanter locking steel plate is fitted in the rear of human femur under loading rotor and Shaft of human femur, then locking nail is coordinated to be fixed sclerite, thus realize rebuilding large trochantinian object, then row Replacement of Hip Joint.
The anatomical form femoral trochanter locking steel plate that the embodiment of the present invention provides, comprise interconnective rotor portions and femur portion, and the profile at rotor portions and human femur under loading rotor rear is suitable, the profile at femur portion and Shaft of human femur rear is suitable, wherein, the greater trochanter gate of rotor portions is used for fitting with human femur under loading greater trochanter, lesser trochanter gate is used for fitting with human femur under loading lesser trochanter, first connecting portion is used for fastening with human femur under loading intertrochanteric crest, second connecting portion is used for fitting with the lateral surface of human femur under loading, and femur portion is used for fitting with Shaft of human femur, thus make the overall surface that can fit tightly at femoral trochanter of this locking steel plate, avoid and adopt existing blade plate, repeatedly must bend moulding to it before using, it just can be made to fit in the drawback of femoral trochanter, simple to operation.Meanwhile, it also avoid owing to repeatedly bending moulding, cause the drawback that the intensity of steel plate declines; In addition, this anatomical form femoral trochanter locking steel plate can fit tightly the surface at femoral bone tuberosity, improves the stability of fixing sclerite.
As previously mentioned, when this anatomical form femoral trochanter locking steel plate is fitted in the rear of human femur under loading rotor, first connecting portion 13 of rotor portions 1 fastens with human femur under loading intertrochanteric crest, see Fig. 1, this first connecting portion 13 comprises outward extending first snap fit 131 of a side based on rotor portions, first snap fit 131 is for fastening with human femur under loading intertrochanteric crest, and the quantity of the first snap fit 131 is multiple, and spaced apart along a side of rotor portions 1.Wherein, the structure of the first snap fit 131 can be the semicircular structure that can fasten with human femur under loading intertrochanteric crest, and the first connecting portion 13 is fastened with human body intertrochanteric crest by multiple first snap fit 131 spaced apart, such structural design, anatomical form femoral trochanter locking steel plate can be reduced to the coverage rate of femur, thus reduce the first connecting portion 13 and the contact of periosteum, be of value to the healing at postoperative fracture place and the recovery of limb function; When the buckling state of one of them first snap fit and 131 human body intertrochanteric crests needs to adjust, only need adjust this first snap fit 131, and other the first snap fit 131 can not be had influence on, make the first connecting portion 13 and the buckling state of human body intertrochanteric crest be easy to adjust; In addition, multiple first snap fit 131 is spaced apart, while guarantee first connecting portion 13 fastens with human body intertrochanteric crest, can reach the object of saving material.
Further, see Fig. 1, the quantity of the first snap fit 131 is 3, each first snap fit 131 is provided with the first lock hole 1311, first lock hole 1311 and is taken as the first tapped through hole, the second tapped through hole and the 3rd tapped through hole (all not indicating figure) from greater trochanter gate to the direction of lesser trochanter gate successively; The extended line of the first tapped through hole is for extending to the anterolateral surface of human femur under loading, and the extended line of the second tapped through hole and the 3rd tapped through hole is for extending to the pulp cavity of human femur under loading.Wherein, first lock hole is for inserting lock screw, realize anatomical form femoral trochanter locking steel plate and lock screw to twist to lock and combine, with the folded block of fixing bone femoral trochanter, according to the actual size size of adult thighbone rotor, the quantity of the first snap fit 131 is preferably 3 by the embodiment of the present invention, when anatomical form femoral trochanter locking steel plate be fitted in human femur under loading rotor below time, the direction, duct of the first screwed hole is towards the anterolateral surface of femur, the direction, duct of the second screwed hole and the 3rd screwed hole is all towards pulp cavity, the setting of the tapped through hole of different directions, the lock screw in the portion that is inserted therein can be made along different directions intersection resected femur trochanteric fracture block, femoral trochanteric fracture block is formed and supports and clamping action, further increase the fixing stability of sclerite.
In order to realize anatomical form femoral trochanter locking steel plate and other external tool carry out with the use of object, see Fig. 1 and Fig. 2, wherein, numeral " 3 " represents the femur of local, rotor portions 1 is also provided with multiple first through hole 1312, each first through hole 1312 is between adjacent two the first snap fits 131, and the first through hole 1312 is for plugging external stability instrument.Wherein, external tool can be steel wire or cable, namely after anatomical form femoral trochanter locking steel plate being fixed on human femur under loading rotor by lock screw, steel wire or cable are passed the first through hole 1312, cerclage is carried out to the sclerite of human femur under loading rotor, further increases the stability that locking steel plate is fixed sclerite.
As previously mentioned, see Fig. 1, second connecting portion 14 is for fitting with the lateral surface of human femur under loading, this second connecting portion 14 comprises outward extending second snap fit 141 of another side based on rotor portions 1, second snap fit 141 is for fitting with the lateral surface of human femur under loading, the quantity of the second snap fit 141 is multiple, and spaced apart along another side of rotor portions 1.Second connecting portion 14 is fitted with the lateral surface of human femur under loading by multiple second snap fit 141 spaced apart, such structural design, anatomical form femoral trochanter locking steel plate can be reduced to the coverage rate of femur, reduce the stripping to Peritrochanteric soft tissue, thus reduce the second connecting portion 14 and the contact of periosteum, be of value to the healing at postoperative fracture place and the recovery of limb function; When one of them second snap fit 141 needs to adjust with the fit-state of the lateral surface of human femur under loading, only need adjust this second snap fit 141, and other the second snap fit can not be had influence on, make the second connecting portion 14 fit-state be fitted on the lateral surface of femur be easy to adjustment; Because multiple second snap fit 141 is spaced apart, while guarantee second connecting portion 14 is fitted with the lateral surface of human femur under loading, the object of saving material can be reached.Wherein, see Fig. 3, second snap fit 141 stretches out based on another side of rotor 1, and extend to the centre position of human femur under loading lateral surface, namely can reach the designing requirement in screw channel direction, the stripping of Peritrochanteric soft tissue can be reduced again, as mesogluteal stop can completely retain, the stop of vastus lateralis only needs part to peel off, and such design, is conducive to the early rehabilitation of postoperative patient.
Further, see Fig. 1 and Fig. 3, wherein, numeral " 3 " represents the femur of local, the quantity of the second snap fit 141 is 5, each second snap fit 141 is provided with the second lock hole 1411, second lock hole 1411 and is taken as the 4th tapped through hole, the 5th tapped through hole, the 6th tapped through hole, the 7th tapped through hole and the 8th tapped through hole (all not indicating figure) from greater trochanter gate to the direction of lesser trochanter gate successively; The extended line of the 4th tapped through hole is used for extending to the trochiterian anteromedial surface of human femur under loading, the extended line of the 5th tapped through hole is for extending to the pulp cavity of human femur under loading, the extended line of the 6th tapped through hole is used for extending to human femur under loading intertrochanteric crest, the extended line of the 7th tapped through hole is for extending to the pulp cavity of human femur under loading, and the extended line of the 8th tapped through hole is used for extending to human femur under loading lesser trochanter.Wherein, second lock hole 1411 is for inserting lock screw, realize anatomical form femoral trochanter locking steel plate to coordinate with lock screw, with resected femur trochanteric fracture block, according to the actual size size of adult thighbone rotor, the quantity of the second snap fit 141 is preferably 5 by the embodiment of the present invention, when anatomical form femoral trochanter locking steel plate is fitted in the rear of femoral trochanter, the direction, duct of the 4th tapped through hole that these 5 the second snap fits 141 are arranged respectively is towards the trochiterian anteromedial surface of human femur under loading, the direction, duct of the 5th tapped through hole is towards the pulp cavity of human femur under loading, the direction, duct of the 6th tapped through hole is towards human femur under loading intertrochanteric crest, the direction, duct of the 7th tapped through hole is towards the pulp cavity of human femur under loading, the direction, duct of the 8th tapped through hole is towards human femur under loading lesser trochanter.The setting of the tapped through hole of different directions, the lock screw be inserted therein can be made along different directions intersection resected femur trochanteric fracture block, femoral trochanteric fracture block is formed and supports and clamping action, the screw channel of the different directions of anatomical form femoral trochanter locking steel plate and the strand of lock screw are locked and are combined, lock screw is not easily loosened, further increases locking steel plate to the support of Fracture of femur block and fixing effect.Simultaneously, the tapped through hole of the tapped through hole of the different directions of the second connecting portion 14 and the different directions of the first connecting portion 13 cooperatively interacts, make the both sides in rotor portions 1 arranged in a crossed manner of all lock screw in all tapped through holes of insertion, Fracture of femur block is formed to the state clamped to make multiple lock screw from the both sides of rotor portions 1, enhance locking steel plate to the fixing of Fracture of femur block and supporting role, further increase the stability that locking steel plate is fixed Fracture of femur block.
In order to realize anatomical form femoral trochanter locking steel plate and other external tool carry out with the use of object, see Fig. 1 and Fig. 3, rotor portions 1 is also provided with multiple second through hole 1412, each second through hole 1412 is between adjacent two the second snap fits 141, and the second through hole 1412 is for plugging external stability instrument.Wherein, external tool can be steel wire or cable, after being namely fixed on femoral trochanter by lock screw by anatomical form femoral trochanter locking steel plate, then steel wire or cable is passed the second through hole 1412, ties up fixing to human femur under loading trochanteric fracture block; Also can first by one end of steel wire or cable through the first through hole 1312 on aforesaid first connecting portion 13, after femoral trochanteric fracture block is tied up, the other end of steel wire or cable is passed this second through hole 1412, finally the two ends of steel wire or cable are fixed, steel wire or cable, anatomical form femoral trochanter locking steel plate and lock screw are coordinated, with resected femur trochanteric fracture block, improve the stability that locking steel plate is fixed human femur under loading trochanteric fracture block further.
Further, see Fig. 1, greater trochanter gate 11 is provided with the 3rd lock hole 111, for inserting lock screw, realize anatomical form femoral trochanter locking steel plate to coordinate with lock screw, with resected femur trochanteric fracture block, the 3rd lock hole is 2,2 the 3rd lock holes 111 are taken as the 9th tapped through hole and the tenth tapped through hole (all not indicating in figure) successively, the 9th tapped through hole and the tenth tapped through hole arranged in a crossed manner." arranged in a crossed manner " herein and aforesaid " arranged in a crossed manner " can be interpreted as: the 9th tapped through hole and the tenth tapped through hole can be planar arranged in a crossed manner, also can be spatially arranged in a crossed manner, but when be in both it spatially intersect time, distance both it between plane of place can not be too large, and its distance is as the criterion with support rib folded block clamping; The setting of the tapped through hole of different directions, the lock screw in the portion that is inserted therein can be made along different directions intersection resected femur trochanteric fracture block, form strand lock to sclerite to fix and supporting role, further increase the stability that locking steel plate is fixed femoral trochanteric fracture block.A large amount of associated biomolecule mechanical tests shows, the steel plate of resected femur trochanteric fracture block is region of stress concentration in the position of the lesser trochanter plane of femur, and the problem ruptured easily appears in proximal femur with anatomical bone plates of the prior art in this position.In order to solve this problem, the cross sectional shape of lesser trochanter gate 12 is C shape, and namely lesser trochanter gate forms semi-surrounding groove structure at lesser trochanter of femur place, to increase the intensity of this anatomical form femoral trochanter locking steel plate in lesser trochanter of femur plane; Meanwhile, suitably can increase the thickness of lesser trochanter gate place locking steel plate, strengthen the intensity of locking steel plate further.
Further, see Fig. 1, lesser trochanter gate 12 is provided with the 4th lock hole 121, for inserting lock screw, coordinate with lock screw to realize anatomical form femoral trochanter locking steel plate, resected femur trochanteric fracture block, the 4th lock hole is 2,2 the 4th lock holes are taken as the 11 tapped through hole and the 12 tapped through hole (all indicating in figure) successively, the 11 tapped through hole and the 12 tapped through hole arranged in a crossed manner." arranged in a crossed manner " herein can be interpreted as: the 11 tapped through hole and the 12 tapped through hole can be planar arranged in a crossed manner, also can be spatially arranged in a crossed manner, but when be in both it spatially intersect time, distance both it between plane of place can not be too large, and its distance is as the criterion with support rib folded block clamping; The setting of the tapped through hole of different directions, can make the lock screw in the portion that is inserted therein intersect along different directions and fix sclerite, form strand and lock fixing and supporting role, further increase the stability of fixing femoral trochanteric fracture block to sclerite.
Further, see Fig. 1, rotor portions 1 is provided with the 5th lock hole 151, for inserting lock screw, realize anatomical form femoral trochanter locking steel plate to coordinate with lock screw, with resected femur trochanteric fracture block, 5th lock hole 151 is between the first connecting portion 13 and the second connecting portion 14,5th lock hole 151 comprises multipair 13 tapped through hole (not indicating in figure), often pair of the 13 tapped through hole is symmetrical and arranged in a crossed manner, adjacent two on the contrary crisscross to the 13 tapped through hole.5th lock hole 151 comprises multipair symmetry and tapped through hole arranged in a crossed manner, " arranged in a crossed manner " herein can be interpreted as: the 13 paired tapped through hole can be planar arranged in a crossed manner, also can be spatially arranged in a crossed manner, but when be in both it spatially intersect time, distance both it between plane of place can not be too large, and its distance is as the criterion with support rib folded block clamping.And adjacent two double thread through holes is on the contrary crisscross, such as, can by adjacent two double thread through holes respectively according to being interior " eight " word and the setting of outer "eight" shape, to make lock screw form the effect supporting and clamp to femoral trochanteric fracture block, further increase the stability that locking steel plate is fixed sclerite.
Wherein, rotor portions 1 and femur portion 2 are platy structure, can be integrated machine-shaping both it.
See Fig. 1, femur 2 is provided with the 6th lock hole 21, the form that 6th lock hole adopts multipair locking screw thread hole 211 and dynamic pressurization hole 212 to combine, anatomical form femoral trochanter locking steel plate and femoral shaft are connected and fixed, often pair of locking screw thread hole 211 and dynamic pressurization hole 212 are symmetrical arranged, and the locking screw thread hole 211 of adjacent symmetric setting is contrary with the position in dynamic pressurization hole 212, the mode that lock screw or os integumentale screw adopt half cortex fixing, is combined by locking steel plate and femoral shaft closely by greater trochanter of femur and lesser trochanter.When implementing Replacement of Hip Joint, do not affecting on the basis that artificial femur handle prosthese lays, lock screw can charge into 2 millimeters of pulp cavity to 3 millimeters, charge into the screw thread on the screw of femur rod pulp cavity and the combination of the bone cement around type femoral bone end prosthesis, the fixed form of steel plate and bone cement clamping plate sample can be formed, make anatomical form femoral trochanter locking steel plate and bone cement form clamp position to sclerite, finally make the fixed effect that femoral trochanteric fracture block reaches more stable.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. an anatomical form femoral trochanter locking steel plate, is characterized in that, comprising:
Rotor portions and the femur portion be connected with described rotor portions, the dissection profile at described rotor portions and human femur under loading rotor rear is suitable, and the dissection profile at described femur portion and Shaft of human femur rear is suitable;
Wherein, described rotor portions is provided with greater trochanter gate, lesser trochanter gate, the first connecting portion and the second connecting portion, described first connecting portion is placed between described greater trochanter gate and described lesser trochanter gate, described second connecting portion is placed between described greater trochanter gate and described femur portion, described greater trochanter gate is used for fitting with human femur under loading greater trochanter, described lesser trochanter gate is used for fitting with human femur under loading lesser trochanter, described first connecting portion is used for fastening with human femur under loading intertrochanteric crest, and described second connecting portion is used for fitting with the lateral surface of human femur under loading; Described femur portion is used for fitting with described Shaft of human femur.
2. anatomical form femoral trochanter locking steel plate according to claim 1, is characterized in that,
Described first connecting portion comprises outward extending first snap fit of a side based on described rotor portions, and described first snap fit is used for fastening with described human femur under loading intertrochanteric crest, and the quantity of described first snap fit is multiple, and spaced apart along a side of described rotor portions.
The quantity of described first snap fit is 3, each described first snap fit is provided with the first lock hole, and described first lock hole is taken as the first tapped through hole, the second tapped through hole and the 3rd tapped through hole successively from described greater trochanter gate to the direction of described lesser trochanter gate;
The extended line of described first tapped through hole is for extending to the anterolateral surface of described human femur under loading, and the extended line of described second tapped through hole and described 3rd tapped through hole is for extending to the pulp cavity of described human femur under loading.
3. anatomical form femoral trochanter locking steel plate according to claim 2, is characterized in that,
Described rotor portions is also provided with multiple first through hole, each described first through hole is between adjacent two described first snap fits, and described first through hole is used for plugging external stability instrument.
4. anatomical form femoral trochanter locking steel plate according to any one of claim 1 to 3, is characterized in that,
Described second connecting portion comprises outward extending second snap fit of another side based on described rotor portions, described second snap fit is used for fitting with the lateral surface of described human femur under loading, the quantity of described second snap fit is multiple, and spaced apart along another side of described rotor portions.
The quantity of described second snap fit is 5, each described second snap fit is provided with the second lock hole, and described second lock hole is taken as the 4th tapped through hole, the 5th tapped through hole, the 6th tapped through hole, the 7th tapped through hole and the 8th tapped through hole successively from described greater trochanter gate to the direction of described lesser trochanter gate;
The extended line of described 4th tapped through hole is used for extending to the trochiterian anteromedial surface of described human femur under loading, the extended line of described 5th tapped through hole is for extending to the pulp cavity of described human femur under loading, the extended line of described 6th tapped through hole is used for extending to described human femur under loading intertrochanteric crest, the extended line of described 7th tapped through hole is for extending to the pulp cavity of described human femur under loading, and the extended line of described 8th tapped through hole is used for extending to described human femur under loading lesser trochanter.
5. anatomical form femoral trochanter locking steel plate according to claim 4, is characterized in that,
Described rotor portions is also provided with multiple second through hole, each described second through hole is between adjacent two described second snap fits, and described second through hole is used for plugging external stability instrument.
6. anatomical form femoral trochanter locking steel plate according to any one of claim 1 to 3, is characterized in that,
Described greater trochanter gate is provided with the 3rd lock hole, described 3rd lock hole is 2, and 2 described 3rd lock holes are taken as the 9th tapped through hole and the tenth tapped through hole successively, described 9th tapped through hole and described tenth tapped through hole arranged in a crossed manner.
7. anatomical form femoral trochanter locking steel plate according to any one of claim 1 to 3, is characterized in that,
The cross sectional shape of described lesser trochanter gate is C shape.
8. anatomical form femoral trochanter locking steel plate according to any one of claim 1 to 3, is characterized in that,
Described lesser trochanter gate is provided with the 4th lock hole, described 4th lock hole is 2, and 2 described 4th lock holes are taken as the 11 tapped through hole and the 12 tapped through hole successively, described 11 tapped through hole and described 12 tapped through hole arranged in a crossed manner.
9. anatomical form femoral trochanter locking steel plate according to any one of claim 1 to 3, is characterized in that,
Described rotor portions is provided with the 5th lock hole, described 5th lock hole is between described first connecting portion and described second connecting portion, described 5th lock hole comprises multipair 13 tapped through hole, often pair of described 13 tapped through hole is symmetrical and arranged in a crossed manner, adjacent two on the contrary crisscross to described 13 tapped through hole.
10. anatomical form femoral trochanter locking steel plate according to any one of claim 1 to 3, is characterized in that,
Described rotor portions and described femur portion are platy structure.
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| CN201510629974.0A CN105125274B (en) | 2015-09-25 | 2015-09-25 | A kind of anatomical form femoral trochanter locking steel plate |
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| CN201510629974.0A CN105125274B (en) | 2015-09-25 | 2015-09-25 | A kind of anatomical form femoral trochanter locking steel plate |
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| CN105125274B CN105125274B (en) | 2017-10-24 |
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| CN112370143A (en) * | 2020-11-24 | 2021-02-19 | 陈博 | Medical instrument tibia bone fracture plate for orthopedic surgery |
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| CN105125274B (en) | 2017-10-24 |
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