CN103705246B - Outward turning angle measuring device in knee joint - Google Patents
Outward turning angle measuring device in knee joint Download PDFInfo
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- CN103705246B CN103705246B CN201310749810.2A CN201310749810A CN103705246B CN 103705246 B CN103705246 B CN 103705246B CN 201310749810 A CN201310749810 A CN 201310749810A CN 103705246 B CN103705246 B CN 103705246B
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- angle measuring
- outward turning
- turning angle
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Abstract
In knee joint surface replacement, the outward turning of femur side prosthesis appropriateness can make the flexing gap in joint and stretch gap and obtain good mating, and reduces the bad complication caused of patellar motion trace.The invention discloses outward turning angle measuring device in a kind of knee joint for using in operating knee joint surface replacement, this frock is made up of postartis locating rack, bevel protractor.Bevel protractor rotating shaft is arranged in the cannelure of postartis locating rack, not only realizes upper and lower translation, can carry out the rotation along axle simultaneously, thus reaches and measure the angle side of different Skeletal size.The present invention is based in knee replacements and obtain actual needs, develop outward turning angle measuring in a kind of knee joint, object provide a kind of structure simple, measure can be general in accurate, easy to use, art instrument, realizing measuring in the art of swing angle degree inside and outside knee joint, accurately implementing to provide support for performing the operation.
Description
Technical field
The present invention relates to a kind of angle measurement unit for using in operating knee joint surface replacement, particularly relating to outward turning angle measuring device in a kind of knee joint.
Background technology
In knee joint surface replacement, the application of size in total knee arthroplasty of condyle of femur outward turning angle has obtained the concern of Chinese scholars.In art, the outward turning of femur side prosthesis appropriateness can make the flexing gap in joint and stretch gap and obtain good mating, reduce the patellar motion trace bad complication caused, comprise that moving outside the shock of prosthetic loosening, patella and femur, patella relaxes and even dislocate, rupture of patellar tendon etc.Line of reference and the inspection method of measuring the distal femur anglec of rotation have multiple, the most frequently used line of reference comprises femoral-posterior condyles line (PCL), epicondyle line (SEA), clinical epicondyle line (CTEA), front and back axis (Whiteside line).Wherein Chinese scholars thinks that epicondyle line sees kneed rotation axis as at present, and position is comparatively constant, the femoral-posterior condyles angle (PCA) formed with this line and postartis line measures distal femur rotate comparatively accurately and hold wield reference in performing the operation.
Clinical statistics is thought, femoral-posterior condyles angle (PCA) exists sizable difference at individuality: first have race difference, and Hong Kong author reports that the femur outward turning angle of factor analysis is obviously greater than external data; Also there are differences between gender, therefore, extremely important to outward turning angle measuring in knee joint, but at present and for there being specific purpose tool to carry out measuring in art.
Summary of the invention
For problems of the prior art, the present invention is based in knee replacements and obtain actual needs, develop outward turning angle measuring in a kind of knee joint, it directly can measure the femoral-posterior condyles angle (PCA) of any individual, thus provide a kind of structure simple, measure can be general in accurate, easy to use, art instrument, realizing measuring in the art of swing angle degree inside and outside knee joint, accurately implementing to provide support for performing the operation.
For achieving the above object, the present invention takes following design:
Outward turning angle measuring device in a kind of knee joint, is made up of pedestal 1, angle measuring scale 2.
Described pedestal 1 is made up of antetheca 11, rear wall 12, an armful condyle plate 14.
Further, there are longitudinally lower groove 15, antetheca to have between pedestal 1 front and rear wall 11,12 and longitudinally upper groove 16, rear wall have groove 17.
Described angle measuring scale 2 is made up of the side plate 22 of rotating shaft 21, symmetrical distribution, graduated disc 24.
Further, under the side direction of angle measuring scale 2 between the front and rear wall 11,12 of described pedestal 1 in groove 13.
Further, the rotating shaft 21 of angle measuring scale 2 is positioned at groove 15 under the longitudinal direction of the front and rear wall 11,12 of pedestal, and such angle measuring scale not only can move up and down along pedestal 1, can pivot simultaneously.
Further, the side plate 22 of angle measuring scale 2 has side plate groove 23, object realizes line at the epicondyle line (SEA) 32 with human femur under loading condyle.
Further, the graduated disc 24 of angle measuring scale 2 is made up of symmetrical groove, mid-scale is 0 degree, each scale is 1 degree, the quantity of groove is 8, namely the range that in this knee joint, outward turning angle measuring device is measured is 8 degree, and the angle that graduated disc 24 and base rear wall show between groove 17 is measured angle value.
When using outward turning angle measuring device in this knee joint, fit with human femur under loading condyle far-end 31 respectively in condyle plate 14 both sides of embracing of described pedestal 1, mobile also rotation angle measurement chi 2, side plate groove 23 is overlapped with the epicondyle line (SEA) 32 of human femur under loading condyle, now, the graduated disc 24 of angle measurement equipment 2 must have groove 17 on a groove and pedestal 1 rear wall to overlap, now the angle of equitant groove institute labelling is swing angle degree inside and outside knee joint with groove 17, i.e. femoral-posterior condyles angle (PCA).
The present invention is based in knee replacements and obtain actual needs, develop outward turning angle measuring in a kind of knee joint, object provide a kind of structure simple, measure can be general in accurate, easy to use, art instrument, realizing measuring in the art of swing angle degree inside and outside knee joint, accurately implementing to provide support for performing the operation; This device can realize Reusability, saves cost further.
Accompanying drawing explanation
The accompanying drawing 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 is outward turning angle measuring device structural representation in knee joint of the present invention;
Fig. 2 is that structural representation is seen in the side of pedestal in outward turning angle measuring device in knee joint of the present invention;
Fig. 3 be in knee joint of the present invention in outward turning angle measuring device pedestal below see structural representation;
Fig. 4 is the anterior aspect structural representation of pedestal in outward turning angle measuring device in knee joint of the present invention;
Fig. 5 is angle measuring scale anterior aspect structural representation in outward turning angle measuring device in knee joint of the present invention;
Fig. 6 is that in knee joint of the present invention, in outward turning angle measuring device, angular surveying ulnar surface sees structural representation;
Fig. 7 is outward turning angle measuring device using state schematic diagram in knee joint of the present invention
Detailed description of the invention
Also describe the present invention in detail below with reference to accompanying drawing in conjunction with the embodiments.
As shown in Figure 1, according to outward turning angle measuring device in knee joint of the present invention, it is characterized in that being made up of pedestal 1, angle measuring scale 2.
As shown in Figure 2 and Figure 3, according to outward turning angle measuring device in knee joint of the present invention, it is characterized in that described pedestal 1 is made up of antetheca 11, rear wall 12, an armful condyle plate 14.
As shown in Figure 4, according to outward turning angle measuring device in knee joint of the present invention, it is characterized in that having between pedestal 1 front and rear wall 11,12 longitudinally lower groove 15, antetheca to have longitudinally upper groove 16, rear wall has groove 17.
As shown in Figure 5, Figure 6, according to outward turning angle measuring device in knee joint of the present invention, it is characterized in that described angle measuring scale 2 is made up of the side plate 22 of rotating shaft 21, symmetrical distribution, graduated disc 24.
As shown in Figure 7, for outward turning angle measuring device using state figure in knee joint of the present invention, now, under the side direction of angle measuring scale 2 between the front and rear wall 11,12 of described pedestal 1 in groove 13, the rotating shaft 21 of angle measuring scale 2 is positioned at groove 15 under the longitudinal direction of the front and rear wall 11,12 of pedestal, such angle measuring scale not only can move up and down along pedestal 1, can pivot simultaneously.When using outward turning angle measuring device in this knee joint, fit with human femur under loading condyle far-end 31 respectively in condyle plate 14 both sides of embracing of described pedestal 1, the side plate 22 of angle measuring scale 2 has side plate groove 23, and object realizes line at the epicondyle line (SEA) 32 with human femur under loading condyle 3.The graduated disc 24 of angle measuring scale 2 is made up of symmetrical groove, mid-scale is 0 degree, each scale is 1 degree, the quantity of groove is 8, namely the range 8 degree that in this knee joint, outward turning angle measuring device is measured, the angle that graduated disc 24 and base rear wall show between groove 17 is measured angle value.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
Clinical statistics is thought, femoral-posterior condyles angle (PCA) exists sizable difference at individuality, therefore, extremely important to outward turning angle measuring in knee joint, but at present and for there being specific purpose tool to carry out measuring in art.For problems of the prior art, the present invention is based in knee replacements and obtain actual needs, develop outward turning angle measuring in a kind of knee joint, it directly can measure the femoral-posterior condyles angle (PCA) of any individual, thus provide a kind of structure simple, measure can be general in accurate, easy to use, art instrument, realizing measuring in the art of swing angle degree inside and outside knee joint, accurately implementing to provide support for performing the operation.
Claims (3)
1. outward turning angle measuring device in a knee joint, it is characterized in that, by pedestal (1), angle measuring scale (2) forms, described pedestal (1) is by antetheca (11), rear wall (12) and armful condyle plate (14) composition, described antetheca (11) and described rear wall (12) there is longitudinally lower groove (15), described antetheca (11) has longitudinally upper groove (16), described rear wall (12) there is groove (17), described angle measuring scale (2) is positioned at groove (13) under the side direction between described antetheca (11) and described rear wall (12), described angle measuring scale (2) is by rotating shaft (21), the side plate (22) of symmetrical distribution and graduated disc (24) composition, described rotating shaft (21) is positioned at groove (15) under the longitudinal direction of described antetheca (11) and described rear wall (12).
2. outward turning angle measuring device in knee joint according to claim 1, is characterized in that, described side plate (22) is symmetrical, has groove (23) in described side plate (22).
3. outward turning angle measuring device in knee joint according to claim 1, is characterized in that, described graduated disc (24) has symmetrical groove, and mid-scale is 0 degree, and each scale is 1 degree, is maximumly measured as 8 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749810.2A CN103705246B (en) | 2013-12-27 | 2013-12-27 | Outward turning angle measuring device in knee joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749810.2A CN103705246B (en) | 2013-12-27 | 2013-12-27 | Outward turning angle measuring device in knee joint |
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| Publication Number | Publication Date |
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| CN103705246A CN103705246A (en) | 2014-04-09 |
| CN103705246B true CN103705246B (en) | 2015-11-25 |
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| CN201310749810.2A Active CN103705246B (en) | 2013-12-27 | 2013-12-27 | Outward turning angle measuring device in knee joint |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173055B (en) * | 2014-09-03 | 2015-12-30 | 北京大学第三医院 | A kind of have the virtual intraarticular physical dimension survey tool turning the heart |
| CN104398321B (en) * | 2014-10-27 | 2016-04-06 | 中国人民解放军第二军医大学 | Lateral condyle two-dimensional measurement device in a kind of femur |
| CN107280727B (en) * | 2017-07-15 | 2023-10-27 | 常州奥斯迈医疗器械有限公司 | Tibia intramedullary director |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2083477U (en) * | 1989-05-08 | 1991-08-28 | 西北师范大学 | Measurer of ankle flexibility |
| CN2148535Y (en) * | 1992-09-08 | 1993-12-08 | 肖非 | Multi-function measuring instrument for joints of human body |
| CN2371948Y (en) * | 1999-04-14 | 2000-04-05 | 辉县市中医院 | Measuring instrument for measuring articular motion range |
| CN200979407Y (en) * | 2006-12-01 | 2007-11-21 | 陈慧琳 | A goniometer |
| CN201123818Y (en) * | 2007-11-30 | 2008-10-01 | 路则显 | Multi-functional percussion hammer |
| CN201683899U (en) * | 2010-01-21 | 2010-12-29 | 上海体育学院 | Measurement device used for measuring intravital joint angles |
| CN201775631U (en) * | 2010-06-09 | 2011-03-30 | 江南大学 | Protractor for range of motion of finger joints |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070266579A1 (en) * | 2006-05-22 | 2007-11-22 | Briscoe Larry G | Multiple-use goniometer |
-
2013
- 2013-12-27 CN CN201310749810.2A patent/CN103705246B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2083477U (en) * | 1989-05-08 | 1991-08-28 | 西北师范大学 | Measurer of ankle flexibility |
| CN2148535Y (en) * | 1992-09-08 | 1993-12-08 | 肖非 | Multi-function measuring instrument for joints of human body |
| CN2371948Y (en) * | 1999-04-14 | 2000-04-05 | 辉县市中医院 | Measuring instrument for measuring articular motion range |
| CN200979407Y (en) * | 2006-12-01 | 2007-11-21 | 陈慧琳 | A goniometer |
| CN201123818Y (en) * | 2007-11-30 | 2008-10-01 | 路则显 | Multi-functional percussion hammer |
| CN201683899U (en) * | 2010-01-21 | 2010-12-29 | 上海体育学院 | Measurement device used for measuring intravital joint angles |
| CN201775631U (en) * | 2010-06-09 | 2011-03-30 | 江南大学 | Protractor for range of motion of finger joints |
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| CN103705246A (en) | 2014-04-09 |
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Address after: 102200 Beijing city industrial building, No. 10 Changping science and Technology Park Bai Fu Road two layer Patentee after: Beijing AKEC Medical Co., Ltd. Address before: 102200 Beijing city industrial building, No. 10 Changping science and Technology Park Bai Fu Road two layer Patentee before: Beijing AKEC Medical Co.,Ltd. |