CN108403120A - Femur outward turning locator - Google Patents
Femur outward turning locator Download PDFInfo
- Publication number
- CN108403120A CN108403120A CN201710074366.7A CN201710074366A CN108403120A CN 108403120 A CN108403120 A CN 108403120A CN 201710074366 A CN201710074366 A CN 201710074366A CN 108403120 A CN108403120 A CN 108403120A
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 64
- 238000005259 measurement Methods 0.000 claims abstract description 88
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 7
- 210000003127 knee Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013150 knee replacement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011882 arthroplasty Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1072—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring distances on the body, e.g. measuring length, height or thickness
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1076—Measuring physical dimensions, e.g. size of the entire body or parts thereof for measuring dimensions inside body cavities, e.g. using catheters
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention proposes a kind of femur outward turning locator comprising ontology, measurement structure, connection structure and detecting structure；Ontology includes substrate and protrudes from the positioning plate of substrate lower end, has scale, the substrate to have two opposite lateral surfaces on the substrate；Measurement structure is removably attachable to the ontology, including a top beam and two side arms for being located at the top beam both sides, two side arms are slidably connected with two lateral surfaces respectively；The tag line coordinated with the scale is useful on the side arm on the front and back two sides of the measurement structure；The side arm of the measurement structure is equipped at least two location holes, the outward turning angle for positioning femur section；Connection structure has a first end and a second end, and the second end is connected to the top beam of the measurement structure；Detecting structure level is slidably connected to the first end of the connection structure and can be rotated relative to the measurement structure.
Description
Technical field
Distal femur outward turning angle is positioned in total knee replacement operation the present invention relates to one kind and measures stock
The femur outward turning locator of bone prosthese size.
Background technology
When carrying out total knee replacement operation, need to open up an osteotomy surface on femur, and measure on the osteotomy surface
The size of femoral prosthesis, external swing angle degree are positioned.Outward turning locator is divided into preceding reference type and rear reference type.Preceding reference type,
It is subject to femur preartis, measures the size of patient femur's condyle；Reference type afterwards, is subject to femoral-posterior condyles, measures patient femur's condyle
Size, preceding reference type can guarantee that front side osteotomy amount is constant, but rear side osteotomy amount may adjust, and avoid front side osteotomy amount excessive
Cause to fracture, rear reference type can guarantee that the osteotomy amount of rear side is constant, but front side osteotomy amount may adjust, and can guarantee buckling gap
Value.
Preceding reference type outward turning locator in the prior art is divided into left and right knee, and left knee and right knee are respectively with respective outward turning
Locator measures, and instrument needs to distinguish left and right sides, this will cause number of instruments to increase.If left knee and right knee use same
Instrument, when being used for left knee and right knee, same outward turning angle is also required to two pairs of different location holes to position, while there is also measurements
Inaccurate problem is certain due to resisting the positioning plate of condyles with the relative position of the agent structure with scale, it is difficult to real
The conversion of its mirror-image structure is now arrived, an instrument is difficult to realize on this basis and accurately measures the femur size of the left and right sides and outer
Swing angle degree, although there is the differentiation for realizing angular adjustment and left and right sides by angle adjusting mechanism in the prior art, additionally
Angle adjusting mechanism it is complicated, considerably increase the volume and operation difficulty of surgical instrument, the possibility of error occurs in angle
Property increase, surgical effect may be influenced.
Above- mentioned information is only used for reinforcing the understanding of the background to the present invention, therefore it disclosed in the background technology part
May include the information not constituted to the prior art known to persons of ordinary skill in the art.
Invention content
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, two kinds of outward turning angles can be positioned simultaneously by providing one kind
It can be used in the femur outward turning locator of both sides femur.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will be from description
Be apparent from, or can be through the invention practice and acquistion.
According to an aspect of the present invention, a kind of femur outward turning locator, including ontology, measurement structure, connection structure with
And detecting structure；Ontology includes substrate and protrudes from the positioning plate of substrate lower end, has scale, the substrate to have two on the substrate
Opposite lateral surface；Measurement structure is removably attachable to the ontology, including a top beam and two are located at the top beam two
The side arm of side, two side arms are slidably connected with two lateral surfaces respectively；The side on the front and back two sides of the measurement structure
The tag line coordinated with the scale is useful on arm；The side arm of the measurement structure is equipped at least two location holes, uses
Outward turning angle in positioning femur section；Connection structure has a first end and a second end, and the second end is connected to the measurement
The top beam of structure；Detecting structure level is slidably connected to the first end of the connection structure and can be relative to the measurement structure
Rotation.
According to an embodiment of the present invention, the location hole include position one first outward turning angle first positioning hole with
And the second location hole of one second outward turning angle of positioning, there are two the first positioning holes, is located on described two side arms,
There are two the second location holes, is located on described two side arms.
According to an embodiment of the present invention, the first outward turning angle is 3 °, and the second outward turning angle is 5 °.
According to an embodiment of the present invention, the draw runner of protrusion, two lateral surfaces are respectively provided on two side arms
On be respectively provided with groove, the draw runner is slidably connected with groove formation；Or
Be respectively provided with groove on two side arms, be respectively provided with the draw runner of protrusion on two lateral surfaces, the groove with
The draw runner formation is slidably connected.
According to an embodiment of the present invention, there are gap, outside is outwardly convex for the inside of the bottom end of at least one draw runner
The protrusion gone out, when the draw runner is slidably connected with groove formation, the protrusion compresses the internal face of the groove simultaneously
It is moved to the gap.
According to an embodiment of the present invention, further include locking mechanism, the locking mechanism is articulated with the survey including one
The lockplate for measuring structure side wall can lock the ontology and measurement structure when rotating the lockplate.
According to an embodiment of the present invention, described lockplate one end is cam structure, which can be revolved by a fixing piece
It is connected in the measurement structure with turning.
According to an embodiment of the present invention, damping unit is equipped between the detecting structure and the connection structure.
According to an embodiment of the present invention, the damping unit is the shrapnel for being set to the detecting structure bottom surface.
According to an embodiment of the present invention, there is circumferential recess on the outer wall of the connection structure, the connection structure
First end has through front and back through-hole, and the detecting structure is slidably connected in the through-hole, and the circumferential recess is arranged in institute
On the outer wall for stating the second end of connection structure, the top beam of the measurement structure has an open top, the circumferential recess to be mounted on
In the open top.
According to an embodiment of the present invention, there is circumferential recess on the outer wall of the connection structure, on the detecting structure
There are a horizontal longitudinal opening, the circumferential recess of the connection structure to be mounted in the horizontal longitudinal opening.
As shown from the above technical solution, the advantages and positive effects of the present invention are：
In the femur outward turning locator of the present invention, measurement structure is removably connected with ontology, and measurement structure is removed
It is re-installed in ontology after 180 ° of overturning, location hole has carried out 180 ° of overturning also with measurement structure, after overturning on ontology
Scale coordinates with the tag line on measurement structure another side, meanwhile, detecting structure is connected by connection structure with measurement structure, is led to
The structure setting of connection structure is crossed, detecting structure can carry out 360 ° of rotation relative to measurement structure, conjunction measuring structure
Overturning forms the measuring system of complete mirror image, realizes the conversion that technical scheme of the present invention is used in left and right sides femur, Ke Yiyong
In the positioning of the measurement and outward turning angle of other side femur size, meet the design feature of both sides femur, it is accurate to measure；A pair is fixed
Position hole can position the outward turning angle of left femur or position the outward turning angle of right side femur.To which the present invention passes through
Position and the assembly method for changing measurement structure and detecting structure, realize the mirror of same instrument to conversion, so as to measure
The size of left and right sides femur, the outward turning angle of positioning left and right sides femur, reduce required number of parts, structure letter
Single, measurement is accurately.
Furthermore, two kinds are can be realized on left femur and right side femur by two pairs of location holes in measurement structure
Outward turning angle, such as 3 ° and 5 ° of positioning, can meet in most of replacement knee in arthroplasty the needs of to femur outward turning angle, tie
Structure is simple, stablizes, and reduces possible angular error.
In addition, in the present invention, the relative position between outward turning angle board and measurement plate can be locked by locking mechanism, be subtracted
Few positioning and measurement error caused by instrument shaking in operation, and it is more convenient when doctor's operation.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 is the schematic front view of the femur outward turning locator of an embodiment of the present invention；
Fig. 2 is the left view schematic diagram of Fig. 1；
Fig. 3 is the exploded perspective view of the femur outward turning locator of an embodiment of the present invention；
Fig. 4 is the schematic diagram that locking mechanism is in the lock state in Fig. 1；
Fig. 5 is the schematic front view of the measurement structure of an embodiment of the present invention；
Fig. 6 is that measurement structure or so overturns the schematic diagram being combined with ontology after 180 °；
Fig. 7 is the structural schematic diagram of the femur outward turning locator of another embodiment of the present invention.
In figure：1, ontology；11, top surface；12, lateral surface；13, positioning plate；14, center lightening hole；2, measurement structure；21、
First positioning hole；22, second location hole；23, top beam；24, side arm；25, protrusion；26, gap；3, connection structure；31, second
End；32, first end；33, horizontal through hole；4, detecting structure；41, horizontal longitudinal opening；5, size lockplate；51, axis pin；52、
Cam structure；6, shrapnel.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Identical attached drawing in figure
Label indicates same or similar structure, thus will omit their detailed description.
As shown in Figures 1 to 7, the invention discloses a kind of femur outward turning locators, in total knee replacement operation
Position femur outward turning angle.The femur outward turning locator of embodiment of the present invention includes ontology 1, measurement structure 2, connection structure 3
And detecting structure 4.
As shown in Figure 1 to Figure 3, which includes the substrate of substantially square frame structure and protrudes under substrate
The positioning plate 13 at end, ontology 1 substrate center tool there are one center lightening hole 14 to mitigate weight and facilitate gripping.In femur
Distal end open up osteotomy surface after, one of the ontology 1 surface fits in the osteotomy surface, and the positioning plate 13 and femur
Postartis contact positioning, for determining the relativeness between ontology 1 and femur, specifically, positioning plate 13 can be divided into two parts,
It is located at the left-hand component and right-hand component of substrate lower end, this two parts positioning plate 13 touches femoral-posterior condyles.
Measurement structure 2 is removably slidably connected on the ontology 1, and the measurement structure 2 can be relative on ontology 1
Lower slider.
Measurement structure 2 is equipped at least two location holes, two or more location holes are used to position an outward turning angle,
The location hole for positioning same outward turning angle is distributed on two side arms of measurement structure.In the present embodiment, the measurement structure 2
On be provided with the of the second outward turning angle of first positioning hole 21 for positioning the first outward turning angle on osteotomy surface and positioning
Two location holes 22.In the present embodiment, which is 3 °, and the second outward turning angle is 5 °, and but not limited to this, should
First outward turning angle and the second outward turning angle are alternatively other angles value.The quantity of first positioning hole 21 and second location hole 22 is equal
It is two, but is not limited thereto, the quantity of the first positioning hole 21 and second location hole 22 is alternatively two or is more than
It two, is located on described two side arms.When ontology 1 is fitted in the osteotomy surface of femur, the first positioning hole 21 and second
Locating pin be can be inserted into location hole 22 to realize positioning.
As shown in figure 3, the ontology 1 has a top surface 11 and two opposite lateral surfaces 12.The measurement structure 2 includes a top
Beam 23 and two side arms 24 for being located at 23 both sides of top beam, two side arms 24 are slidably connected with the formation of the two lateral surfaces 12.
In present embodiment, a groove, the central axes or so that the two grooves can be relative to ontology 1 are respectively provided on two lateral surfaces 12
The draw runner of a protrusion, the central axes or so that the two draw runners can be relative to measurement structure are symmetrically respectively provided on two side arms 24
Symmetrically.Two draw runners are inserted into respectively in the two grooves, are slidably connected to be formed.Upward sliding measurement structure 2 arrives certain journey
After degree, the two draw runners can be made to be skidded off out of groove, so that measurement structure 2 is separated with ontology 1.The measurement structure 2
After being separated with ontology 1,180 ° of left and right overturning, so that it may draw runner to be inserted into sliding slot again so that measurement structure 2 is slided again
It is connected on ontology 1.Or groove is respectively provided on two side arms, be respectively provided with the draw runner of protrusion on two lateral surfaces, the groove with
The draw runner formation is slidably connected.As shown in figure 5, in another embodiment of the present invention, above-mentioned at least one draw runner can incite somebody to action
The draw runner bottom end of wherein one or both sides is set as shrapnel form, and specifically, there are gap 26, outside has for the inside of draw runner bottom end
The protrusion 25 outwardly protruded, when draw runner is slidably connected with groove formation, the protrusion 25 compresses the interior of the groove
Wall surface is simultaneously moved to 26 direction of the gap, therefore there is this part certain elasticity, protruding portion 25 can give measurement structure
One pressure kept out of groove of groove or ontology so that the relative position of ontology 1 and measurement structure 2 is restricted, will not be light
Easily sliding.
As shown in Fig. 1 and Fig. 4, femur outward turning locator can also include one for locking ontology 1 and measurement structure 2
Locking mechanism.Measurement structure 2 can be locked on ontology 1 after measurement structure 2 moves in place, avoid two by the locking mechanism
Person is displaced.In the present embodiment, locking mechanism includes a lockplate 5, and one end of the lockplate 5 is cam structure,
And it is hinged in measurement structure 2 by axis pin 51.The size lockplate 5 rotation when can extrusion body 1, by ontology 1
It is locked with measurement structure 2.It will be apparent to a skilled person that the structure type of the locking mechanism is not intended to limit, such as
The parts such as the screw in measurement structure 2 can also be used and carry out extrusion body 1 as locking mechanism to lock the two.
The scale for indicating the relative position between the ontology and measurement structure 2 is equipped on ontology 1, in measurement structure
There are tag line, tag line to be matched with the scale on ontology on 2, the scale value being directed toward by reading tag line, you can obtain this
The relative position of body and measurement structure 2, to obtain the applicable size of femoral prosthesis.On the side arm on the front and back two sides of measurement structure
There is tag line.
Connection structure 3 is rotatably connected on the top of the measurement structure 2.The connection structure 3 can be done relative to measurement structure 2
360 ° rotate freely.4 level of detecting structure is slidably connected to the connection structure 3.Therefore, which also can be relative to
Measurement structure 2 does 360 ° of rotation.Detecting structure 4, can be the form of probe, front end bend downward and be used for on femur
Desired point is in contact, and after measurement structure 2 rotates 180 °, which can also rotate accordingly, so that detecting structure 4
Direction be consistent originally.
As shown in figure 3, in the present embodiment, which is formed by two sections, connection structure 3 includes second
Hold 32 top slide end of 31 lower rotation connecting pins and first end.The lower rotation connecting pin is rotationally connected with measurement structure 2,
Circumferential recess is equipped on the outer wall of connection structure, which is specifically provided on the outer wall of second end.It is surveying
It measures and is set on the top beam of structure 2 there are one open top, which is rotatably installed in the open top on the top beam, to
Realize rotation connection of the connection structure 3 relative to measurement structure 2.Run through front and back water there are one then being set on top slide end
Flat through-hole 33, when ontology 1 is erected in ground, the horizontal through hole 33 is at horizontality, thus detecting structure 4 is that horizontal sliding connects
It is connected within the horizontal through hole 33.It will be apparent to a skilled person that real between the connection structure 3 and measurement structure 2
The mode being now rotatablely connected is not intended to limit, such as can be also rotatablely connected therebetween by bearing.
As shown in fig. 7, the connection structure 3 in addition to that can be rotatably connected in measurement structure 2, can also be directly anchored to
In the measurement structure 2.In another embodiment of the present invention shown in Fig. 7, there is circumferential recess in the periphery of the connection structure 3, visits
There are a horizontal longitudinal opening 41, the circumferential recess of the connection structure 3 to be mounted on the horizontal longitudinal opening 41 on geodesic structure 4
It is interior, therefore detecting structure 4 can be slided with anterior-posterior horizontal, and 360 ° of rotation can also be done relative to measurement structure 2.
One damping unit can also be set between detecting structure 4 and connection structure 3, increased using the damping unit and detected
Frictional force between structure 4 and connection structure 3 so that the relative position between detecting structure 4 and connection structure 3 will not be easily
It changes.
In the present embodiment, which includes a shrapnel 6 being arranged on detecting structure 4.The shrapnel 6 with connect
Preferably shrapnel 6 is arranged in the lower surface of detecting structure for 3 sliding contact of structure, and so, which can tie in detection
Apply elastic force between structure 4, connection structure 3 and measurement structure 2, wherein shrapnel 6 to connection structure 3, measurement structure 2 apply to
Under elastic force, apply upward elastic force to detecting structure 4.Under the action of shrapnel 6, between detecting structure 4 and connection structure 3 with
And damping action can be generated between connection structure 3 and measurement structure 2, it is provided centainly for the sliding and rotation of detecting structure 4
The resistance of degree ensures that the position between measurement structure 2, connection structure 3 and detecting structure 4 is not easy to change.Correspondingly, it is detecting
Structure 4 is equipped with the scale for indicating relative position between detecting structure and connection structure 3, to read 4 phase of detecting structure
The length stretched out for connection structure 3.
In conjunction with Fig. 6 to Fig. 7, the femur outward turning locator of present embodiment use process is as follows.
First, osteotomy surface (such as forming osteotomy surface in left femur) is formed on patient wherein side femur then will
Ontology 1 is fitted on the osteotomy surface, and positioning plate 13 is made to contact femoral-posterior condyles, realizes the positioning between ontology 1 and femur.So
Afterwards, measurement structure 2 claps slide downward on 2 in dimensional measurement, and the tip for making detecting structure 4 and the expectation on femur front end face
Point is in contact, and completes the positioning of measurement structure 2, pulls size lockplate 5 until locking, can utilize locating pin to be inserted into first fixed
In position hole 21 or second location hole 22, the outward turning angle of 3 ° or 5 ° of the positioning on the side femur is realized.At the same time, Ke Yitong
It crosses and reads the relevant parameter that measuring device 2 is worth to femur size relative to the scale on ontology 1, to select the knee of suitable types
Joint provides foundation.
Next, size lockplate 5 is unlocked, 2 upward sliding of measurement structure is made and is detached from ontology 1, then, by the survey
Amount structure 2 or so is slidably connected to the ontology 1 again after overturning 180 °.Ontology 1 is located in the osteotomy of the femur of other side
On face (such as being right side femur at this time), after detecting structure 4 is rotated 180 °, may make the tip and the other side of detecting structure 4
Desired point on femur front end face is in contact, and completes the positioning of measurement structure 2, pulls size lockplate 5 until locking, Ke Yili
It is inserted into first positioning hole 21 or second location hole 22 with locating pin, can also realize and position 3 ° or 5 ° outer on the side femur
Swing angle degree.Meanwhile the relevant parameter of femur size can be worth to relative to the scale on ontology 1 by reading measuring device 2,
To select the knee joint of suitable types to provide foundation.
The femur outward turning locator of the present invention overturns detecting structure 4 simultaneously by overturning measurement structure 2, may be implemented
Both sides femur positioning, it is simple in structure, reduce required number of parts.It is useful on the side arm on the front and back two sides of measurement structure
In the tag line coordinated with the scale, the size of both sides femur can be measured.At the same time, due to first positioning hole and second
Location hole is arranged in measurement structure, can be up and down with measurement structure, so that the position that locating pin is inserted into can
As measurement structure 2 changes, positioning accuracy is improved.
It is particularly shown and described exemplary embodiments of the present invention above.It should be understood that the present invention is not limited to institute
Disclosed embodiment, on the contrary, it is intended to cover comprising various modifications in the spirit and scope of the appended claims
And equivalent arrangements.
Claims (10)
1. a kind of femur outward turning locator, which is characterized in that including：
Ontology, including substrate and the positioning plate of substrate lower end is protruded from, there are scale, the substrate to have two opposite on the substrate
Lateral surface；
Measurement structure is removably attachable to the ontology, including a top beam and two side arms for being located at the top beam both sides,
Two side arms are slidably connected with two lateral surfaces respectively；It is useful on the side arm on the front and back two sides of the measurement structure
In the tag line coordinated with the scale；The side arm of the measurement structure is equipped at least two location holes, for positioning femur
The outward turning angle in section；
Connection structure has a first end and a second end, and the second end is connected to the top beam of the measurement structure；
Detecting structure, level are slidably connected to the first end of the connection structure and can be rotated relative to the measurement structure.
2. femur outward turning locator according to claim 1, which is characterized in that the location hole includes outside positioning one first
The first positioning hole of swing angle degree and the second location hole for positioning one second outward turning angle, there are two the first positioning holes, point
Wei Yu not be on two side arms, there are two the second location holes, is located on two side arms.
3. femur outward turning locator according to claim 2, which is characterized in that the first outward turning angle is 3 °, described
Second outward turning angle is 5 °.
4. femur outward turning locator according to claim 1, which is characterized in that be respectively provided with protrusion on two side arms
Draw runner, groove is respectively provided on two lateral surfaces, and the draw runner is slidably connected with groove formation；Or
Be respectively provided with groove on two side arms, be respectively provided with the draw runner of protrusion on two lateral surfaces, the groove with it is described
Draw runner formation is slidably connected.
5. femur outward turning locator according to claim 4, which is characterized in that the bottom end of at least one draw runner it is interior
Side there are gap, outside it is outwardly convex go out protrusion；When the draw runner is slidably connected with groove formation, the protrusion
It compresses the internal face of the groove and is moved to the gap.
6. femur outward turning locator according to claim 1, which is characterized in that further include locking mechanism, the locking machine
Structure includes a lockplate for being articulated with the measurement structure side wall, can tie the ontology and measurement when rotating the lockplate
Structure locks.
7. femur outward turning locator according to claim 6, which is characterized in that described lockplate one end is cam structure,
The end is rotatably connected to by a fixing piece in the measurement structure.
8. femur outward turning locator according to claim 1, which is characterized in that the detecting structure and the connection structure
Between be equipped with damping unit, the damping unit is the shrapnel for being set to the detecting structure.
9. femur outward turning locator according to any one of claims 1 to 8, it is characterised in that：The outer wall of the connection structure
On there is circumferential recess, the first end of the connection structure to have through front and back through-hole, the detecting structure is slidably connected to described
In through-hole, the circumferential recess is arranged on the outer wall of the second end of the connection structure, and the top beam of the measurement structure has one
Open top, the circumferential recess are mounted in the open top.
10. femur outward turning locator according to any one of claims 1 to 8, it is characterised in that：The outer wall of the connection structure
On have circumferential recess, have a horizontal longitudinal opening on the detecting structure, the circumferential recess of the connection structure is mounted on described
In horizontal longitudinal opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710074366.7A CN108403120B (en) | 2017-02-10 | 2017-02-10 | Femur external rotation positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710074366.7A CN108403120B (en) | 2017-02-10 | 2017-02-10 | Femur external rotation positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108403120A true CN108403120A (en) | 2018-08-17 |
| CN108403120B CN108403120B (en) | 2024-04-05 |
Family
ID=63125148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710074366.7A Active CN108403120B (en) | 2017-02-10 | 2017-02-10 | Femur external rotation positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108403120B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009477A (en) * | 2018-09-03 | 2018-12-18 | 苏州微创关节医疗科技有限公司 | Femur measurement device |
| CN110584739A (en) * | 2019-10-15 | 2019-12-20 | 北京爱康宜诚医疗器材有限公司 | Osteotomy amount measuring device |
| CN113367861A (en) * | 2021-06-21 | 2021-09-10 | 天衍医疗器材有限公司 | Probe lockable femur measurer |
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| CN202920186U (en) * | 2012-11-29 | 2013-05-08 | 北京市春立正达医疗器械股份有限公司 | Femur survey meter |
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| CN110584739A (en) * | 2019-10-15 | 2019-12-20 | 北京爱康宜诚医疗器材有限公司 | Osteotomy amount measuring device |
| CN110584739B (en) * | 2019-10-15 | 2023-09-12 | 北京爱康宜诚医疗器材有限公司 | Osteotomy measuring device |
| CN113367861A (en) * | 2021-06-21 | 2021-09-10 | 天衍医疗器材有限公司 | Probe lockable femur measurer |
| CN113367861B (en) * | 2021-06-21 | 2023-01-03 | 天衍医疗器材有限公司 | Probe lockable thighbone measurer |
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