• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An auxiliary device for examining a hip joint with a magnetic resonance tomograph is proposed, wherein a frame (1) is provided, which can be fastened to the leg of the hip joint to be examined with a predetermined tensile force in the direction of the longitudinal axis (4) of a patient. and a foot support (12) for the other leg effective in the direction of the longitudinal axis (4) of the patient.
    公开号:AT511693A4
    申请号:T50022/2012
    申请日:2012-02-02
    公开日:2013-02-15
    发明作者:
    申请人:Menges Manfred；
    IPC主号:
    专利说明:

    Printed: 03-02-2012 E014.1 1 10 2012/50022
    (38428) II
    The invention relates to an auxiliary device for examining a hip joint with a magnetic resonance tomograph.
    For the preparation of hip joint operations, the knowledge of the cartilaginous state in the area of the head of the femur and the socket and the condition of the joint lip is an essential prerequisite for further operative procedure and planning, for example, with reference to the local extent of a detected joint damage to be able to determine. In order to be able to make a good picture of the local extent and size of a possible joint damage with the help of a magnetic resonance tomograph, it would be advantageous to fill the hip joint with a contrast agent and to subject it to a tensile load during the examination. Existing devices for magnetic resonance imaging, however, do not allow any tensile load of the hip joint to be examined.
    The invention is therefore based on the object to provide an insertable in conventional magnetic resonance imaging auxiliary device, with the aid of a tensile load of the hip joint to be examined can be ensured without affecting the magnetic resonance tomography.
    The invention achieves this object by means of an auxiliary device with a frame which can be fastened to the leg of the hip joint to be examined with a predetermined tensile force in the direction of the longitudinal axis of a patient
    Printed: 03-02-2012 E014.1 10 2012/50022 2
    Traction means and effective in the direction of the longitudinal axis of the patient Fußab support for the other leg.
    According to these measures, the leg of the hip joint to be examined can be loaded by the traction means with a predetermined, preferably adjustable tensile force, while the other leg is supported on the footrest of the frame. This means, first of all, that the support of the leg, which is not loaded by a tensile force, on the frame can counteract a tilting of the pelvis and thus a consequent loss of the tensile load of the hip joint to be examined. This creates a simple precondition for an auxiliary device which ensures independent uniform loading of the hip joint, regardless of the particular magnetic resonance tomograph used, with the result that the hip joint can be better viewed and therefore examined more reliably due to the stress-related pulling apart of the joint parts, especially in the case of a preceding contrast medium filling can.
    Although the tensile load of the traction device relative to the frame can be constructively achieved in different ways, for example by means of springs or cylinders, particularly simple construction conditions arise when the attachable to the leg of the hip joint to be examined traction means guided around a pulley of the frame and to a Loading weight is connected. Due to the weight load of the traction device attached to one leg of a patient and the support of the other leg on the frame, the hip joint to be examined is kept under a corresponding tensile load during the examination.
    So that the tensile force applied to the traction means can advantageously be transferred to the leg to be loaded, the traction means can be fastened with the aid of a suitable shoe to the leg of the hip joint to be examined. With such a shoe a largely uniform and gentle on the patient leg load can be ensured. Λο λο om o
    Printed: 03-02-2012 £ 014.1 10 2012/50022 3
    In order for the frame a sufficient adjustment can be considered up to the magnetic resonance tomograph, the footrest is under certain circumstances pre-store the mobile frame at a suitable distance. For this purpose, it is advisable to provide the Fu ßabstützung with a guide rod which is adjustably mounted in the frame in the direction of the longitudinal axis of the patient to the position of the foot ßabstützung against the frame and thus the position of the frame relative to the magnetic resonance tomograph to the respective To be able to adapt room conditions. This means that different table heights and lengths can be taken into account in a simple manner by means of the auxiliary device.
    In order to be able to easily convert the auxiliary device for examining a left or right hip joint, the frame can have two guide bearings arranged symmetrically with respect to the traction means for the guide rod provided with a foot support. With this measure, it is possible to use the footrest as needed for a left or right leg by the guide rod for the foot support is inserted into the respective one of the two provided on both sides of the traction means guide bearing. The traction device remains aligned with respect to the leg to be loaded.
    In the drawing, the subject invention is shown, for example. Show it
    1 shows an auxiliary device according to the invention for examining a hip joint with a magnetic resonance tomograph in a simplified plan view;
    FIG. 2 shows this auxiliary device in a section along the line INI of FIG. 1, and FIG. 3 shows the auxiliary device in an end view.
    The auxiliary device shown has a frame 1 with a chassis 2, the wheels 3 allow positioning of the frame relative to the longitudinal axis 4 of a patient. On the frame 1, a guide roller 5 for a traction means 6, preferably a rope, mounted, which has a running in the direction of the longitudinal axis 4 strand with a connected shoe 7, by means of which the traction means 6 can be attached to the leg of a patient. At the other end of the traction device 10 2012/50022
    Printed on 03-02-2012 E014.1 4 6 is attached a load weight 8, which is slidably held in a guide 9 in height and is preferably composed of a set of individual weights in order to adapt the tensile load of the examined hip joint to the appropriate anatomical conditions and to allow the weight of the patient.
    Symmetrically on both sides of the traction means 6, two guide bearings 10 are provided for selectively receiving a guide rod 11 in the frame 1, which carries a footrest 12 at its front end. To adjust the projecting over the respective guide bearing 10 length of the guide rod 11, the guide rod 11 is held longitudinally adjustable in the guide bearings 10 and can be determined in the selected displacement position by means of clamping screws 13. For height adjustment of the Fußabstützung 12 and in the use position for the guide rod 11 substantially parallel run of the traction means 6 of the guide roller 5 and the guide bearing 10 for the guide rod 11 comprehensive part 14 of the frame 1 relative to the chassis 2 of height is displaced. In the illustrated embodiment, the part 14 is telescopically mounted in a support tube 15 of the frame 1 for this purpose adjustable.
    To examine a hip joint resting on a table 16 of the device for magnetic resonance imaging patient with the leg of the hip joint to be examined, in the illustrated embodiment with the left leg, connected to the traction means 6 by the shoe 7 placed around the foot of the left leg and closed. The other, in the case shown right leg is supported on the footrest 12. Due to the tensile load of the traction device 6 on the load weight 8, the patient is pulled against the footrest 12, so that the patient can rest on the resting on the footrest 12 leg relative to the frame 1, which is the pelvic position in the unilateral tensile load of the other leg is essential. Because of the tensile load of one leg and the support over the other leg, there is no need for a strong connection between the foot support 12 and the supported leg per se, although λπ An ηη <&lt; n
    Printed: 03-02-2012 E014.1 10 2012/50022 5 it may be advantageous to produce a corresponding connection, for example by a strap that spans the foot in the forefoot area.
    By the tensile load of the left leg and the simultaneous support of the right leg tilting of the pelvis can be counteracted, which simplifies the application of a predetermined by the load weight 8 tensile load on the hip joint. The consequent pulling apart of the interacting joint parts in conjunction with a contrast medium filling allows a better insight into the hip joint and thus a more accurate examination result.
    To investigate the right hip joint, the auxiliary device is to be converted, the guide rod 11 is used with the footrest 12 in the left guide bearing 10. If shoes 7 adapted to left and right feet are provided, the shoe 7 must also be changed before the patient can be connected to the auxiliary device. ΛΟ ΛΟ ΟΛΊ o
    权利要求:
    Claims (5)
    [1]
    Printed: 03-02-2012 E014.1 10 2012/50022 Patent Attorneys Dipi.-Irtg. Helmut Hübscher Dipi.-Ing. Karl Winfried Hellmich Spittelwiese 7, A 4020 Linz (38428) II Claims: 1. Auxiliary device for examining a hip joint with a magnetic resonance tomograph, characterized by a frame (1), the one with a predetermined tensile force in the direction of the longitudinal axis (4) of a patient resilient , on the leg of the examined hip joint fastenable traction means (6) and in the direction of the longitudinal axis (4) of the patient effective foot support (12) for the other leg.
    [2]
    2. Auxiliary device according to claim 1, characterized in that the fastened to the leg of the hip joint to be examined traction means (6) is guided around a deflection roller (5) of the frame (1) and connected to a loading weight (8).
    [3]
    3. Auxiliary device according to claim 1 or 2, characterized in that the traction means (6) by means of a shoe (7) on the leg of the hip joint to be examined can be fastened.
    [4]
    4. Auxiliary device according to one of claims 1 to 3, characterized in that the foot support (12) has a guide rod (11) which is adjustably mounted in the frame (1) in the direction of the longitudinal axis (4) of the patient.
    [5]
    5. Auxiliary device according to claim 4, characterized in that the frame (1) has two with respect to the traction means (6) symmetrically arranged guide bearing (10) for the provided with a foot support (12) guide rod (11). Lin2, February 2, 2012 Manfred Menges by: Dipl.-Ing. Helmut Hübscher signed electronically ΙΛΟ ΛΟ ΟΓΜΟ
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    同族专利:
    公开号 | 公开日
    EP2623029B1|2020-11-25|
    AT511693B1|2013-02-15|
    EP2623029A1|2013-08-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5542423A|1991-12-04|1996-08-06|Apogee Medical Products, Inc.|Indexing assembly for joint imaging|
    EP0806175A2|1996-05-06|1997-11-12|Raycont Ltd.|System and method for low-dosage imaging in babies and small animals|
    US5991651A|1997-08-13|1999-11-23|Labarbera; Joseph A.|Compression/traction method for use with imaging machines|
    DE8909993U1|1989-08-21|1990-01-04|Puetzler, Manfred, Dipl.-Phys., 4400 Muenster, De|
    US6860272B2|2002-01-17|2005-03-01|Portal, Inc.|Device for immobilizing a patient and compressing a patient's skeleton, joints and spine during diagnostic procedures using an MRI unit, CT scan unit or x-ray unit|
    DE10310389A1|2003-03-07|2004-09-16|TransMIT Gesellschaft für Technologietransfer mbH|Measuring device for the defined exercise examination of the lower leg muscles |JPWO2019189743A1|2018-03-29|2021-06-24|国立大学法人 筑波大学|3D model generation method, 3D model generation device, and 3D model generation program|
    CN110840485A|2019-11-30|2020-02-28|中国人民解放军陆军军医大学第一附属医院|Adjustable hip joint detection fixing device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50022/2012A|AT511693B1|2012-02-02|2012-02-02|AUXILIARY DEVICE FOR EXAMINING A HIP JOINT|ATA50022/2012A| AT511693B1|2012-02-02|2012-02-02|AUXILIARY DEVICE FOR EXAMINING A HIP JOINT|
    EP13152041.3A| EP2623029B1|2012-02-02|2013-01-21|Auxiliary device for examining a hip joint|
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