CN203873759U - Measuring device for internal and external rotating angles of knee joints - Google Patents
Measuring device for internal and external rotating angles of knee joints Download PDFInfo
- Publication number
- CN203873759U CN203873759U CN201320889531.1U CN201320889531U CN203873759U CN 203873759 U CN203873759 U CN 203873759U CN 201320889531 U CN201320889531 U CN 201320889531U CN 203873759 U CN203873759 U CN 203873759U
- Authority
- CN
- China
- Prior art keywords
- angle measuring
- measuring device
- knee joint
- internal
- outward turning
- 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.)
- Expired - Lifetime
Links
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 41
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 31
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000011883 total knee arthroplasty Methods 0.000 abstract description 4
- 210000004417 patella Anatomy 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 210000000689 upper leg Anatomy 0.000 description 11
- 238000013150 knee replacement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000556 factor analysis Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 210000000426 patellar ligament Anatomy 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- -1 this Chemical compound 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4657—Measuring instruments used for implanting artificial joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physical Education & Sports Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a measuring device for internal and external rotating angles of knee joints used for total knee arthroplasty of surgical operations. During total knee arthroplasty, proper extorsion of lateral femoral prostheses enables bending gaps and unbending gaps of the joints to be well matched to reduce complications caused by bad movement paths of patellas. The measuring device is composed of a base and an angle measuring scale whose a rotary shaft is located in a longitudinal groove of the base and capable of horizontally shifting in an up-to-down mode and rotating along the shaft in the manner of being perpendicular to a plane of the longitudinal groove. Scales are distributed on the angle measuring scale. Angle measurement of differently-sized skeletons is achieved by reading the relative angle of the angle measuring scale and the base. The measuring device for the internal and external rotating angles of the knee joints has following beneficial effects: based on actual needs of total knee arthroplasty, the measuring device for the internal and external rotating angles of the knee joints is developed with the view of providing a universal tool for an operation advantaged by being simple in structure, accurate in measurement and convenient in application; and measurement of the internal and external rotating angles of the knee joints during the operation is achieved, which provides support for accurate conduction of the operation.
Description
Technical field
This utility model relates to a kind of angle measurement unit using for operating knee joint surface replacement art, particularly relates to outward turning angle measuring device in a kind of knee joint.
Background technology
In knee joint surface replacement art, the application of the size of condyle of femur outward turning angle in total knee arthroplasty obtained the concern of Chinese scholars.In art, the flexing gap that the outward turning of femur side prosthesis appropriateness can make joint with stretch gap and obtain good mating, reduce the bad complication causing of patellar motion trace, comprise that shock, the patella of prosthetic loosening, patella and femur moves lax even dislocation, rupture of patellar tendon etc. outward.Line of reference and the inspection method of measuring the distal femur anglec of rotation have multiple, the most frequently used line of reference to comprise femoral-posterior condyles line (PCL), epicondyle line (SEA), clinical epicondyle line (CTEA), front and back axis (Whiteside line).Wherein at present Chinese scholars thinks that epicondyle line sees kneed rotation axis as, and position is comparatively constant, with this line and the formed femoral-posterior condyles of postartis line angle (PCA), be to measure distal femur rotation comparatively accurately and in operation to hold wield reference.
Clinical statistics thinks, femoral-posterior condyles angle (PCA) exists sizable difference at individuality: first have race difference, Hong Kong author reports that the femur outward turning angle of factor analysis is obviously greater than external data; Between gender, also there are differences, therefore, extremely important to outward turning angle measuring in knee joint, but at present also for there being specific purpose tool to carry out measuring in art.
Summary of the invention
For problems of the prior art, this utility model is based on obtaining actual needs in knee replacements, develop outward turning angle measuring in a kind of knee joint, it can directly measure the femoral-posterior condyles angle (PCA) of any individual, thereby provide a kind of simple in structure, measure can be general in accurate, easy to use, art instrument, realize in the art of the inside and outside swing angle degree of knee joint and measuring, for performing the operation, accurately implement to provide support.
For achieving the above object, this utility model is taked following design:
An outward turning angle measuring device in knee joint, is comprised of pedestal (1), angle measuring scale (2).
Described pedestal (1) is comprised of antetheca (11), rear wall (12), an armful condyle plate (14).
Further, between pedestal (1) front and rear wall (11), (12), there are longitudinally lower groove (15), antetheca to have on longitudinally upper groove (16), rear wall and have groove (17).
Described angle measuring scale (2) is comprised of side plate (22), the graduated disc (24) of rotating shaft (21), symmetrical distribution.
Further, angle measuring scale (2) is positioned at groove (13) under the front and rear wall (11), the side direction between (12) of described pedestal (1).
Further, the rotating shaft (21) of angle measuring scale (2) is positioned at the front and rear wall (11) of pedestal, the longitudinally lower groove (15) of (12), angle measuring scale not only can move up and down along pedestal (1) like this, can pivot simultaneously.
Further, on the side plate (22) of angle measuring scale (2), have 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 comprised of symmetrical groove, middle scale is 0 degree, each scale is 1 degree, the quantity of groove is 8, the range that in this knee joint, outward turning angle measuring device is measured is 8 degree, and the angle showing between groove (17) in graduated disc (24) and base rear wall is measured angle value.
While using the interior outward turning angle measuring device of 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) overlaid on a groove and pedestal (1) rear wall, now be knee joint inside and outside swing angle degree, i.e. femoral-posterior condyles angle (PCA) with the angle of the equitant groove of groove (17) institute labelling.
This utility model is based on obtaining actual needs in knee replacements, develop outward turning angle measuring in a kind of knee joint, object provide a kind of simple in structure, measure can be general in accurate, easy to use, art instrument, realize in the art of the inside and outside swing angle degree of knee joint and measuring, for performing the operation, accurately implement to provide support; This device can be realized Reusability, further saves cost.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is outward turning angle measuring device structural representation in this utility model knee joint;
Fig. 2 is that structural representation is seen in the side of pedestal in the interior outward turning angle measuring device of this utility model knee joint;
Fig. 3 be in this utility model knee joint in outward turning angle measuring device pedestal see structural representation below;
Fig. 4 is the anterior aspect structural representation of pedestal in the interior outward turning angle measuring device of this utility model knee joint;
Fig. 5 is angle measuring scale anterior aspect structural representation in the interior outward turning angle measuring device of this utility model knee joint;
Fig. 6 is that in the interior outward turning angle measuring device of this utility model knee joint, angular surveying ulnar surface is seen structural representation;
Fig. 7 is outward turning angle measuring device using state schematic diagram in this utility model knee joint
The specific embodiment
Below with reference to accompanying drawing, also describe this utility model in detail in conjunction with the embodiments.
As shown in Figure 1, according to outward turning angle measuring device in this utility model knee joint, it is characterized in that being formed by pedestal (1), angle measuring scale (2).
As shown in Figure 2 and Figure 3, according to outward turning angle measuring device in this utility model knee joint, it is characterized in that described pedestal (1) is comprised of antetheca (11), rear wall (12), an armful condyle plate (14).
As shown in Figure 4, according to outward turning angle measuring device in this utility model knee joint, it is characterized in that between pedestal (1) front and rear wall (11), (12), having longitudinally lower groove (15), antetheca to have on longitudinally upper groove (16), rear wall has groove (17).
As shown in Figure 5, Figure 6, according to outward turning angle measuring device in this utility model knee joint, it is characterized in that described angle measuring scale (2) is comprised of side plate (22), the graduated disc (24) of rotating shaft (21), symmetrical distribution.
As shown in Figure 7, for outward turning angle measuring device using state figure in this utility model knee joint, now, angle measuring scale (2) is positioned at groove (13) under the front and rear wall (11), the side direction between (12) of described pedestal (1), the rotating shaft (21) of angle measuring scale (2) is positioned at the front and rear wall (11) of pedestal, the longitudinally lower groove (15) of (12), angle measuring scale not only can along pedestal, (1 moves up and down, and can pivot simultaneously like this.While using the interior outward turning angle measuring device of this knee joint, armful condyle plate 14 of described pedestal (1)) fit with human femur under loading condyle far-end (31) respectively in both sides, on the side plate (22) of angle measuring scale (2), have side plate groove (23), 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 comprised of symmetrical groove, middle scale is 0 degree, each scale is 1 degree, the quantity of groove is 8, range 8 degree that in this knee joint, outward turning angle measuring device is measured, the angle showing between groove (17) in graduated disc (24) and base rear wall is measured angle value.
As can be seen from the above description, this utility model the above embodiments have realized following technique effect:
Clinical statistics thinks, 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, this utility model is based on obtaining actual needs in knee replacements, develop outward turning angle measuring in a kind of knee joint, it can directly measure the femoral-posterior condyles angle (PCA) of any individual, thereby provide a kind of simple in structure, measure can be general in accurate, easy to use, art instrument, realize in the art of the inside and outside swing angle degree of knee joint and measuring, for performing the operation, accurately implement to provide support.
Claims (6)
1. an outward turning angle measuring device in knee joint, is comprised of pedestal (1), angle measuring scale (2), and angle measuring scale rotating shaft is arranged in the cannelure of pedestal, and angle measuring scale top is marked with scale.
2. outward turning angle measuring device in knee joint according to claim 1, it is characterized in that, pedestal (1) is comprised of antetheca (11), rear wall (12), an armful condyle plate (14), has longitudinally lower groove (15), antetheca to have on longitudinally upper groove (16), rear wall and have groove (17) between front and rear wall (11), (12).
3. outward turning angle measuring device in knee joint according to claim 1, is characterized in that, angle measuring scale (2) is comprised of side plate (22), the graduated disc (24) of rotating shaft (21), symmetrical distribution.
4. according to outward turning angle measuring device in claim 2 or knee joint claimed in claim 3, it is characterized in that, angle measuring scale (2) is positioned at the longitudinally lower groove (15) of pedestal (1) by rotating shaft (21), can realize upper and lower translation and rotation.
5. according to outward turning angle measuring device in claim 1 or knee joint claimed in claim 3, it is characterized in that, side plate (22) is symmetrical, has groove (23) in side plate.
6. according to outward turning angle measuring device in claim 1 or knee joint claimed in claim 3, it is characterized in that, graduated disc (24) has symmetrical groove, and middle scale is 0 °, and each scale is 1 °, and maximum is measured as 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889531.1U CN203873759U (en) | 2013-12-27 | 2013-12-27 | Measuring device for internal and external rotating angles of knee joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889531.1U CN203873759U (en) | 2013-12-27 | 2013-12-27 | Measuring device for internal and external rotating angles of knee joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203873759U true CN203873759U (en) | 2014-10-15 |
Family
ID=51674321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889531.1U Expired - Lifetime CN203873759U (en) | 2013-12-27 | 2013-12-27 | Measuring device for internal and external rotating angles of knee joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203873759U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643195A (en) * | 2020-05-19 | 2020-09-11 | 北京市春立正达医疗器械股份有限公司 | Knee joint tissue balancer |
| CN114176709A (en) * | 2021-12-29 | 2022-03-15 | 广东省第二人民医院（广东省卫生应急医院） | Accurate guide that cuts of thighbone postcondyles among knee joint replacement art |
| CN115844600A (en) * | 2023-01-17 | 2023-03-28 | 山东省医疗器械和药品包装检验研究院 | Device and method for measuring relative angular movement of knee joint prosthesis |
-
2013
- 2013-12-27 CN CN201320889531.1U patent/CN203873759U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643195A (en) * | 2020-05-19 | 2020-09-11 | 北京市春立正达医疗器械股份有限公司 | Knee joint tissue balancer |
| CN114176709A (en) * | 2021-12-29 | 2022-03-15 | 广东省第二人民医院（广东省卫生应急医院） | Accurate guide that cuts of thighbone postcondyles among knee joint replacement art |
| CN114176709B (en) * | 2021-12-29 | 2022-09-30 | 广东省第二人民医院（广东省卫生应急医院） | Accurate guide that cuts of thighbone postcondyles among knee joint replacement art |
| CN115844600A (en) * | 2023-01-17 | 2023-03-28 | 山东省医疗器械和药品包装检验研究院 | Device and method for measuring relative angular movement of knee joint prosthesis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10335055B2 (en) | Kinetic assessment and alignment of the muscular-skeletal system and method therefor | |
| CA2923733C (en) | Kinetic assessment and alignment of the muscular-skeletal system and method therefor | |
| Monk et al. | The shape of the distal femur: a geometrical study using MRI | |
| CN203873759U (en) | Measuring device for internal and external rotating angles of knee joints | |
| Harrold et al. | Humeral head arthroplasty and its ability to restore original humeral head geometry | |
| CN108042217A (en) | A kind of definite method of three dimensions lower-limbs biology force-line | |
| US20240065577A1 (en) | Kinetic assessment and alignment of the muscular-skeletal system and method therefor | |
| CN202920186U (en) | Femur survey meter | |
| CN103705246B (en) | Outward turning angle measuring device in knee joint | |
| CN104546234A (en) | Thighbone size measuring device | |
| CN101357064A (en) | Measurement scaling rack for determining human lower-limb axis | |
| WO2024051735A1 (en) | Method for measuring relative motion of bone, and method for acquiring and positioning rotation axis of joint | |
| CN203724276U (en) | Femoral condyle measurer for unicompartmental knee arthroplasty | |
| Conti et al. | Comparison of three standard anatomical reference frames for the tibia–fibula complex | |
| CN204318977U (en) | A kind of artificial hip joint replacing femoral stem forward leaning angle localizer | |
| CN103940688B (en) | A kind of osseocartilaginous femur locating device of testing in vitro Patellar joint and method | |
| Gangadharan et al. | Distal femoral resection at knee replacement—The effect of varying entry point and rotation on prosthesis position | |
| Massin et al. | Intra-operative navigation of knee kinematics and the influence of osteoarthritis | |
| Harrold et al. | A novel osteotomy in shoulder joint replacement based on analysis of the cartilage/metaphyseal interface | |
| Lalone et al. | Effect of radial head implant shape on radiocapitellar joint congruency | |
| CN201595825U (en) | Surgical arthroscope inferior glenoid measurer | |
| Markolf et al. | In vitro determination of the passive knee flexion axis: Effects of axis alignment on coupled tibiofemoral motions | |
| CN108175378A (en) | A kind of determining method of knee joint central point | |
| US9033902B2 (en) | Femoral condylar radius gage | |
| CN201263679Y (en) | Measuring calibration rack for determining axes of human body lower limb |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |