Summary of the invention
Main purpose of the present invention is to provide a kind of femoral stem, to solve the nonadjustable problem of collodiaphyseal angle in prior art.
To achieve these goals, the invention provides a kind of femoral stem, comprising: bone handle; Handle neck, is connected with bone handle the angle that regulates therebetween rotationally.
Further, bone handle is provided with multiple spacing hole, and handle neck is provided with fixing hole, and spacing hole is connected by the first connector with fixing hole, and wherein, multiple spacing hole corresponds respectively to the different angles between handle neck and bone handle.
Further, also comprise: the second connector, one end of handle neck is connected to one end of bone handle rotationally by the second connector.
Further, one end of bone handle is provided with the first shaft hole, and one end of handle neck is provided with the second shaft hole, and the second connector is arranged in the first shaft hole and the second shaft hole.
Further, multiple spacing hole is arranged along the first shaft hole circumference.
Further, one end of bone handle has highlightedly and be oppositely arranged two pieces of otic placodes, and two pieces of otic placodes offer spacing hole and fixing hole accordingly separately, and one end of handle neck is inserted between two pieces of otic placodes.
Further, spacing hole is three.
Further, fixing hole is one.
Further, the first connector and/or the second connector are pin.
Further, bone handle and handle neck are made up of rustless steel or titanium alloy or vitallium.
Applying technical scheme of the present invention, adopting femoral stem and handle neck by being rotationally connected adjustment angle therebetween and axially adjustable locate mode solves the adjustment problem of collodiaphyseal angle.This technical scheme can carry out according to the physiological structure of dissimilar people the setting angle of selecting femoral stem neck dry, and the present invention is easy and simple to handle and easily process.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the first visual angle explosive view of the embodiment according to femoral stem of the present invention;
Fig. 2 shows the second visual angle explosive view of the embodiment according to femoral stem of the present invention;
Fig. 3 shows the perspective view of the embodiment according to femoral stem of the present invention;
Fig. 4 shows the front view of the embodiment according to femoral stem of the present invention; And
Fig. 5 shows the profile of the embodiment according to femoral stem of the present invention.
Wherein, above-mentioned accompanying drawing comprises the following drawings labelling:
10, bone handle; 11, the first shaft hole; 12, spacing hole; 13, otic placode; 20, handle neck; 21, the second shaft hole; 22, fixing hole; 30, the second connector; 40, the first connector.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
It is noted that following detailed description is all exemplary, be intended to provide further instruction to the application.Unless otherwise, all technology used herein and scientific terminology have the identical meanings usually understood with the application person of an ordinary skill in the technical field.
For convenience of description, here can usage space relative terms, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for the spatial relation described as a device shown in the figure or feature and other devices or feature.Should be understood that, space relative terms is intended to comprise the different azimuth in use or operation except the described in the drawings orientation of device.Such as, " in other devices or structure below " or " under other devices or structure " will be positioned as after if the device in accompanying drawing is squeezed, being then described as the device of " above other devices or structure " or " on other devices or structure ".Thus, exemplary term " in ... top " can comprise " in ... top " and " in ... below " two kinds of orientation.This device also can other different modes location (90-degree rotation or be in other orientation), and relatively describe space used here and make respective explanations.
Now, the illustrative embodiments according to the application is described with reference to the accompanying drawings in more detail.But these illustrative embodiments can be implemented by multiple different form, and should not be interpreted as being only limited to embodiment set forth herein.Should be understood that, there is provided these embodiments be in order to make the application open thorough and complete, and the design of these illustrative embodiments is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, expand the thickness in layer and region, and use the device that identical Reference numeral represents identical, thus will omit description of them.
As shown in Figure 1, the femoral stem of embodiments of the invention, comprises bone handle 10 and handle neck 20.Wherein, handle neck 20 and bone handle 10 are connected the angle that regulates therebetween rotationally.
In the present embodiment, adopt bone handle 10 and handle neck 20 to be rotationally connected adjustment angle therebetween and solved the adjustment problem of collodiaphyseal angle by the adjustable locate mode of axis.This technical scheme can carry out the dry setting angle of selection femoral stem neck according to the physiological structure of dissimilar people.The mode realizing the setting angle of handle neck is mainly realized by handle neck axial rotation on bone handle one end.The present invention is installed easy and simple to handle and easily process.
As shown in Figures 2 to 5, in the present embodiment, bone handle 10 is provided with multiple spacing hole 12, and handle neck 20 is provided with fixing hole 22, and spacing hole 12 is connected by the first connector 40 with fixing hole 22.Wherein, multiple spacing hole 12 corresponds respectively to the different angles between handle neck 20 and bone handle 10.First connector 40 is arranged on bone handle 10 and handle neck 20 also can realize freely rotating between bone handle 10 and handle neck 20, and one end of bone handle 10 is also provided with multiple spacing holes 12 of different azimuth.The handle neck 20 of bone handle 10 link is provided with the fixing hole 22 suitable with spacing hole 12, and fixing hole 22 to be connected with one of them spacing hole 12 by the first connector 40 and to fix relative position and the angle of bone handle 10 and handle neck 20.To be connected by the first connector 40 by changing fixing hole 22 when needing to adjust the angle between bone handle 10 and handle neck 20 on other spacing hole 12 and just can realize.The benefit of such setting can adjust applicable femoral stem to realize the object for the treatment of according to the patient of different physiological structure, also effectively shortens time and the cost for the treatment of simultaneously.
In the present embodiment, be also provided with the second connector 30, be connected to one end of bone handle 10 rotationally by the second connector 30 with one end of handle neck 20.Bone handle 10 is connected by the second connector 30 rotationally with one end of handle neck 20, and the benefit arranged like this can be good at realizing the adjustable of the angle between bone handle 10 and handle neck 20, operates more simple and convenient.
In the present embodiment, one end of bone handle 10 is provided with the first shaft hole 11, and one end of handle neck 20 is provided with the second shaft hole 21, second connector 30 and is arranged in the first shaft hole 11 and the second shaft hole 21.The first shaft hole 11 that bone handle 10 is arranged is connected by the second connector 30 with the second shaft hole 21 that handle neck 20 is arranged.Adopt the connected mode of axle and axis hole, with make bone handle 10 and handle neck 20 more smooth and easy in the process of rotating, more easily realize rotation.Structure is simple, is easy to realize.
In the present embodiment, multiple spacing hole 12 is arranged along the first shaft hole 11 circumference.On bone handle 10 arrange multiple spacing holes 12 be positioned on bone handle 10 arrange and around first shaft hole 11 circumference uniform, the benefit of such setting arranges multiple spacing hole 12 bone handle 10 and handle neck 20 to be fixed and be limited on different positions, thus realize the object changing femoral stem collodiaphyseal angle.Collodiaphyseal angle adjustable type femoral stem in embodiment can according to the physiological structure of human body, the tensile force of regulating muscle meat tissue, and after making installation, human body is more comfortable, performs the operation safer.
In the present embodiment, one end of bone handle 10 has highlightedly and be oppositely arranged two pieces of otic placodes 13, two pieces of otic placodes 13 offer spacing hole 12 and fixing hole 22 accordingly separately, and one end of handle neck 20 is inserted between two pieces of otic placodes 13.Be inserted in one end of handle neck 20 between otic placode 13 that bone handle 10 one end arranges, and undertaken spacing and fixing by spacing hole 12 that otic placode 13 is arranged and fixing hole 22, such being provided with is beneficial to connection between bone handle 10 and handle neck 20 and more stablizes and safety.Collodiaphyseal angle adjustable type femoral stem in the present embodiment can be determined accurately and regulate femoral stem collodiaphyseal angle, and locked selected suitable collodiaphyseal angle degree as required, be applicable to normal or lopsided hip joint artificial prosthesis substitution prosthesis.
Preferably, spacing hole 12 is three.Collodiaphyseal angle adjustable type femoral stem in the present embodiment is simple to operate, and instruction is clear and definite, and once mounting just can use.Certainly, also can according to actual needs, under the prerequisite of proof strength, offer and be less than 3 or spacing hole more than 3.
Preferably, fixing hole 22 is one.The while that structure being simple, also ensure that certain intensity.
In the present embodiment, the first connector 40 and/or the second connector 30 are pin.
In the present embodiment, bone handle 10 and handle neck 20 are made up of rustless steel or titanium alloy or vitallium.Collodiaphyseal angle adjustable type femoral stem in the present embodiment adopts medical stainless steel, titanium alloy or vitallium to make, safety durable.
From the above description, the present invention has following technique effect:
Applying technical scheme of the present invention, adopting femoral stem and handle neck by being rotationally connected adjustment angle therebetween and axially adjustable locate mode solves the adjustment problem of collodiaphyseal angle.This technical scheme can carry out according to the physiological structure of dissimilar people the setting angle of selecting femoral stem neck dry, and the present invention is simple to operate and easily process.
Collodiaphyseal angle adjustable type femoral stem of the present invention can be determined accurately and regulate femoral stem collodiaphyseal angle, and locked selected suitable collodiaphyseal angle degree as required, be applicable to normal or lopsided hip joint artificial prosthesis substitution prosthesis.
Collodiaphyseal angle adjustable type femoral stem of the present invention can according to the physiological structure of human body, the tensile force of regulating muscle meat tissue, and after making installation, human body is more comfortable, performs the operation safer.
Collodiaphyseal angle adjustable type femoral stem of the present invention is simple to operate, and instruction is clear and definite, and once mounting just can use, and easily makes.
Collodiaphyseal angle adjustable type femoral stem of the present invention adopts medical stainless steel, titanium alloy or vitallium to make, safety durable.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.