CN107595447A - Acetabular component positioner - Google Patents
Acetabular component positioner Download PDFInfo
- Publication number
- CN107595447A CN107595447A CN201711035790.7A CN201711035790A CN107595447A CN 107595447 A CN107595447 A CN 107595447A CN 201711035790 A CN201711035790 A CN 201711035790A CN 107595447 A CN107595447 A CN 107595447A
- Authority
- CN
- China
- Prior art keywords
- hole
- guide
- acetabular component
- positioning
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010146 3D printing Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 210000001981 hip bone Anatomy 0.000 abstract description 23
- 210000000988 bone and bone Anatomy 0.000 abstract description 16
- 230000000694 effects Effects 0.000 description 2
- 210000001624 hip Anatomy 0.000 description 2
- 238000011540 hip replacement Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The present invention discloses a kind of acetabular component positioner, including guide pin, positioning guide and location-plate, the positioning that guide pin is used for acetabular component are oriented to；Positioning guide has openend and blind end, and blind end is provided with multiple second through holes and fourth hole, is provided with matched pilot pin in second through hole, fourth hole passes through for guide pin；Location-plate is rotatablely arranged on positioning guide, positions the spacing hole for being provided with the side wall of guide and being worn for location-plate, and the part stretched into positioning guide cavity of location-plate is provided with the third through-hole and fifth hole passed through respectively for pilot pin and guide pin.The pilot pin of acetabular component positioner can be respectively with hipbone prosthese acetabular bone match, so as to be accurately positioned out the matching angle of positioning guide and hipbone prosthese, pin can be directed to exactly and securely to be fixed in patient's acetabular bone, so as to improve the positioning precision of guide pin.
Description
Technical field
The present invention relates to hip replacement field, in particular to a kind of acetabular component positioner.
Background technology
The experience of operator is depended on during traditional hip replacement surgery setting acetabular prosthese, usual doctor is to observe hip more
Mortar cup cup edge and horizontal plane and vertical relation of plane are to determine the angle of splay of acetabular cup and top rake, if patient's deformity of hip joint
Prone position serious or on one's sick bed is incorrect to bring extreme difficulties to doctor's setting acetabular prosthese, it is possible to cause acetabular bone
The serious consequences such as prothesis dislocation.
The Model Reconstruction required precision of popular acetabular component positioner is high currently on the market, and serious forgiveness is low, and time-consuming
Longer, cost is higher.
Above- mentioned information is only used for strengthening the understanding of the background to the present invention disclosed in the background section.
The content of the invention
A primary object of the present invention is at least one defect for overcoming above-mentioned prior art, there is provided a kind of acetabular bone is false
Body positioner, to improve the installation accuracy of acetabular component, reduce operation cost.
For achieving the above object, the present invention adopts the following technical scheme that：
According to an aspect of the invention, there is provided a kind of acetabular component positioner, the acetabular component positioner
Including guide pin, positioning guide and location-plate, the positioning that guide pin is used for the acetabular component is oriented to；Position guide
With openend and blind end, the blind end is provided with multiple second through holes and fourth hole, is provided with second through hole
Matched pilot pin, the fourth hole pass through for the guide pin；Location-plate is rotatablely arranged at the positioning and led
On cylinder, the spacing hole worn for the location-plate is provided with the side wall of the positioning guide, stretching into for the location-plate is described
Part in positioning guide cavity is provided with the third through-hole passed through respectively for the pilot pin and the guide pin and the 5th and led to
Hole；Wherein described second through hole is arranged in pairs with the third through-hole, and the center of the second through hole and threeway described in each pair
The straight line that the straight line parallel that the center in hole is formed is formed in the center of the fourth hole and the center of fifth hole.
According to an embodiment of the present invention, wherein the acetabular component positioner also includes guide, set thereon
There is a first through hole for guide pin insertion, the first through hole is centrally located at the center of the fourth hole and described the
On the straight line that the center of five through holes is formed, the first end of the guide has the convex surface matched with acetabular fossa；The guide
First end can be extend into by the openend it is described positioning guide in so that the convex surface is resisted against the end of the pilot pin
Portion.
According to an embodiment of the present invention, wherein the central axis of the normal of the location-plate and the positioning guide is put down
OK.
According to an embodiment of the present invention, wherein the cross section of the guide is circle, in the first through hole
Mandrel line overlaps with the central axis of the guide.
According to an embodiment of the present invention, wherein the quantity of the pilot pin is identical with the quantity of second through hole,
The length of multiple pilot pins is mutually the same.
According to an embodiment of the present invention, wherein the quantity of the pilot pin is more than 3.
According to an embodiment of the present invention, plurality of second through hole is set at equal intervals.
According to an embodiment of the present invention, wherein the multiple second through hole is arranged at the periphery of the fourth hole.
According to an embodiment of the present invention, wherein the guide is formed by 3D printing.
As shown from the above technical solution, it is the advantages of acetabular component positioner of the invention with good effect：Acetabular bone
The pilot pin of prosthese positioner can be respectively with hipbone prosthese acetabular bone match, so as to be accurately positioned out positioning guide with
The matching angle of hipbone prosthese, it is fixed on so as to be directed to exactly and securely pin in patient's acetabular bone, so as to carry
The positioning precision of high guide pin.
Brief description of the drawings
Consider following the following detailed description of the embodiment of the present invention in conjunction with the accompanying drawings, various targets of the invention,
Feature and advantage will become apparent.Accompanying drawing is only the exemplary diagram of the present invention, is not necessarily drawn to scale.
In the accompanying drawings, same reference represents same or similar part all the time.Wherein：
Fig. 1 is a kind of structure chart of acetabular component positioner according to an illustrative embodiments.
Fig. 2 is the structure chart that the positioning guide in Fig. 1 coordinates with location-plate.
Fig. 3 is the structure chart that the positioning guide in Fig. 2 coordinates with location-plate and coordinated with hipbone prosthese.
Fig. 4 is the structure chart that the acetabular component positioner in Fig. 1 coordinates with hipbone prosthese.
Fig. 5 is provided with the structure chart that the acetabular component positioner of guide pin coordinates with hipbone prosthese.
Fig. 6 is the structure chart that guide pin coordinates with acetabular bone.
Wherein, description of reference numerals is as follows：
101st, guide；102nd, guide is positioned；
103rd, location-plate；104th, the second through hole；
105th, pilot pin；106th, third through-hole；
107th, spacing hole；301st, guide pin；
302nd, first through hole.
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.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, these 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 accompanying drawing in figure
Mark represents same or similar structure, thus will omit their detailed description.
Referring to figs. 1 to Fig. 6, according to an aspect of the present invention, there is provided a kind of acetabular component positioner, acetabular component are fixed
Position device includes guide pin 301, positioning guide 102 and location-plate 103, wherein the positioning blind end of guide 102 can be provided with
Pilot pin 105.Before use, can first prepare a hipbone identical hipbone prosthese with patient, the hipbone prosthese can be by
3D printing is formed, but is not limited., can be with the case that the acetabular component positioner is positioned over into the acetabular bone of hipbone prosthese
One end of the acetabular bone of the remote hipbone prosthese of pilot pin 105 is promoted manually, each pilot pin 105 is resisted against hipbone prosthese respectively
Acetabular bone in；Then rotating retaining plate 103, pilot pin 105 is made to be fastened in respectively in the second through hole 104 of the positioning guide 102；
Now, operating personnel can record the point overlapped with hipbone prosthese index point of the acetabular component positioner, can be with general
The positioning guide 102 is removed, to match the device on the hipbone of patient after sterilizing.Operating personnel are by above-mentioned acetabular component
The multiple pilot pins 105 for being pushed out and being fixed in positioner match with patient's hipbone, then can be directed to pin 301 successively
Fifth hole, fourth hole are inserted into up to being inserted into the acetabular bone of patient, now can position guide 102 to remove, according to
The direction of guide pin 301 file acetabular bone and setting acetabular prosthese.The soft tissue that can be penetrated due to pilot pin 105 in acetabular bone supports hip
Mortar, the acetabular component positioner exactly and can be firmly fixed in patient's acetabular bone, so as to so that guide pin 301 has
There is higher positioning precision.
According to the embodiment of the present invention, wherein each pilot pin 105 can be promoted using constant power, this
When dynamometer can be coordinated to use, more accurately to control each pilot pin 105 to be inserted into the acetabular cup of hipbone prosthese
Depth, so as to further improve the positioning precision of guide pin 301.
According to the embodiment of the present invention, the mode that wherein operating personnel can manually mark is led in positioning
The point overlapped with certain index point is marked on cylinder 102, but is not limited.According to the embodiment of the present invention, wherein
Fluted or convex portion can be set on location-plate 103, the positioning guide 102 positioning after the completion of, can record the groove or
The position that person convex portion overlaps with hipbone prosthese, it is easy to position use on patient's hipbone.According to the specific embodiment party of the present invention
Formula, the wherein groove or convex portion can be selected with rounded structure, triangular structure, rectangular configuration etc. according to being actually needed
Its shape is selected, all within the scope of the present invention.
According to the embodiment of the present invention, the wherein length of pilot pin 105 can be more than positioning guide 102 in
The size of mandrel line bearing of trend, it might be less that or equal to size of the guide 102 along center axis extension direction is positioned, all
Within the scope of the present invention.
Reference picture 1, Fig. 4 and Fig. 5, according to the embodiment of the present invention, wherein acetabular component positioner also
Guide 101 can be included, the first through hole 302 inserted for guide pin 301, guide 101 can be provided with guide 101
First end can have the convex surface that is matched with acetabular fossa.According to the embodiment of the present invention, wherein guide 101
The outline of lateral cross section can be with rounded, and the guide 101 can have central axis, the central shaft of the first through hole 302
Line can overlap with the central axis of the guide 101.The guide 101 can be made of 3D printing technique.Above-mentioned right
, it is necessary to which each pilot pin 105 positions respectively during each pilot pin 105 is positioned, and it also requires control is to each
The dynamics that pilot pin 105 positions, in order to improve the locating speed of the pilot pin 105, makes the acetabular component positioner more increase
Effect, more accurately position, the guide 101 can be resisted against to one end of the remote hipbone prosthese of pilot pin 105, due to this
The convex surface of guide 101 matches with the acetabular cup of hipbone prosthese, so the power that the guide 101 applies to each pilot pin 105
Spend identical.It is corresponding with certain index point of hipbone prosthese wherein on the guide 101 according to the embodiment of the present invention
Position can set fluted or convex portion, and the groove can be such as, but not limited to set on the outer peripheral face of the guide 101
Or convex portion, in order to which the acetabular component positioner is quickly aligned with hipbone, but it is not limited, all the guarantor in the present invention
In the range of shield.
With continued reference to Fig. 1 to Fig. 5, spacing hole 107 can be wherein provided with the side wall of the positioning guide 102, for fixed
Position plate 103 inserts.The part that the location-plate 103 is inserted into the cavity of positioning guide 102 can be with the cavity of positioning guide 102
Cross section matching, all within the scope of the present invention.
According to the embodiment of the present invention, the wherein quantity of pilot pin 105 and the quantity phase of the second through hole 104
Together, it is the majority of more than 3, the quantity of pilot pin is more, and the matching of this acetabular component positioner and acetabular bone is more accurate, example
As but be not limited to the pilot pin can be 77, all within the scope of the present invention.According to the specific embodiment party of the present invention
Formula, the length of plurality of pilot pin 105 are mutually the same.According to the embodiment of the present invention, wherein fourth hole can
To be arranged at the middle position of multiple second through holes 104, but it is not limited, the position of the fourth hole can be according to actual need
Selected, all within the scope of the present invention.According to the embodiment of the present invention, plurality of second through hole
104 can be disposed at equal intervals, but be not limited, and can be selected according to being actually needed, all in protection scope of the present invention
It is interior.
According to the embodiment of the present invention, the wherein normal of location-plate 103 can be with the center of positioning guide 102
Diameter parallel, but be not limited thereto, the installation site that can be selected between the two according to being actually needed.
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner
In.In superincumbent description, there is provided many details fully understand so as to provide to embodiments of the present invention.However,
It will be appreciated by persons skilled in the art that technical scheme can be put into practice without one or more in specific detail,
Or other methods, component, material etc. can be used.In other cases, it is not shown in detail or describes known features, material
Or operate to avoid fuzzy each aspect of the present invention.
Claims (9)
1. a kind of acetabular component positioner, it is characterised in that the acetabular component positioner includes：
Guide pin, it is oriented to for the positioning to the acetabular component；
Guide is positioned, there is openend and blind end, the blind end is provided with multiple second through holes and fourth hole, and this second
Matched pilot pin is provided with through hole, the fourth hole passes through for the guide pin；
Location-plate, it is rotatablely arranged on the positioning guide, is provided with the side wall of the positioning guide for the positioning
The spacing hole that plate is worn, the part stretched into the positioning guide cavity of the location-plate is provided with supplies the pilot pin respectively
The third through-hole and fifth hole passed through with the guide pin；
Wherein described second through hole is arranged in pairs with the third through-hole, and the center of the second through hole and threeway described in each pair
The straight line that the straight line parallel that the center in hole is formed is formed in the center of the fourth hole and the center of fifth hole.
2. acetabular component positioner as claimed in claim 1, it is characterised in that the acetabular component positioner also includes
Guide, is provided with the first through hole for guide pin insertion, and the first through hole is centrally located at the four-way
On the straight line that the center in hole and the center of the fifth hole are formed, the first end of the guide has what is matched with acetabular fossa
Convex surface；The first end of the guide can be extend into by the openend in the positioning guide, so that the convex surface is supported
In the end of the pilot pin.
3. acetabular component positioner as claimed in claim 2, it is characterised in that the normal of the location-plate and the positioning
The centerline axis parallel of guide.
4. acetabular component positioner as claimed in claim 2, it is characterised in that the cross section of the guide is circle,
The central axis of the first through hole overlaps with the central axis of the guide.
5. acetabular component positioner as claimed in claim 1, it is characterised in that the quantity of the pilot pin and described second
The quantity of through hole is identical, and the length of multiple pilot pins is mutually the same.
6. acetabular component positioner as claimed in claim 5, it is characterised in that the quantity of the pilot pin is more than 3.
7. acetabular component positioner as claimed in claim 1, it is characterised in that multiple second through holes are set at equal intervals
Put.
8. acetabular component positioner as claimed in claim 1, it is characterised in that the multiple second through hole is arranged at described
The periphery of fourth hole.
9. acetabular component positioner as claimed in claim 2, it is characterised in that the guide is formed by 3D printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035790.7A CN107595447B (en) | 2017-10-30 | 2017-10-30 | Acetabular prosthesis positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035790.7A CN107595447B (en) | 2017-10-30 | 2017-10-30 | Acetabular prosthesis positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107595447A true CN107595447A (en) | 2018-01-19 |
| CN107595447B CN107595447B (en) | 2024-02-09 |
Family
ID=61083951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711035790.7A Active CN107595447B (en) | 2017-10-30 | 2017-10-30 | Acetabular prosthesis positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107595447B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171243A (en) * | 1991-02-13 | 1992-12-15 | Pfizer Hospital Products Group, Inc. | Acetabular cup positioning insert |
| US7670383B1 (en) * | 2004-05-04 | 2010-03-02 | Biomet Manufacturing Corp. | Pubic catch |
| CN101959475A (en) * | 2008-02-25 | 2011-01-26 | 史密夫和内修有限公司 | Method and system of mapping femoral head for acetabular prosthesis alignment |
| US20110224674A1 (en) * | 2006-02-27 | 2011-09-15 | Biomet Manufacturing Corp. | Patient-specific acetabular alignment guides |
| CN102740790A (en) * | 2009-11-17 | 2012-10-17 | 金斯顿女王大学 | Patient-specific guide for acetabular cup placement |
| US20130053858A1 (en) * | 2002-11-07 | 2013-02-28 | Brad L. Penenberg | Precise hip component positioning for hip replacement surgery |
| CN205866800U (en) * | 2016-05-23 | 2017-01-11 | 上海昕健医疗技术有限公司 | Hip joint location guiding piece that patient is matchd |
-
2017
- 2017-10-30 CN CN201711035790.7A patent/CN107595447B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171243A (en) * | 1991-02-13 | 1992-12-15 | Pfizer Hospital Products Group, Inc. | Acetabular cup positioning insert |
| US20130053858A1 (en) * | 2002-11-07 | 2013-02-28 | Brad L. Penenberg | Precise hip component positioning for hip replacement surgery |
| US7670383B1 (en) * | 2004-05-04 | 2010-03-02 | Biomet Manufacturing Corp. | Pubic catch |
| US20110224674A1 (en) * | 2006-02-27 | 2011-09-15 | Biomet Manufacturing Corp. | Patient-specific acetabular alignment guides |
| CN101959475A (en) * | 2008-02-25 | 2011-01-26 | 史密夫和内修有限公司 | Method and system of mapping femoral head for acetabular prosthesis alignment |
| CN102740790A (en) * | 2009-11-17 | 2012-10-17 | 金斯顿女王大学 | Patient-specific guide for acetabular cup placement |
| CN205866800U (en) * | 2016-05-23 | 2017-01-11 | 上海昕健医疗技术有限公司 | Hip joint location guiding piece that patient is matchd |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107595447B (en) | 2024-02-09 |
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