• 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:
    In a device (1) for performing a transrectal ultrasound, comprising a holding device for a rod-shaped ultrasonic probe (2) which has a drive with a motor for rotating the ultrasonic probe about its longitudinal axis, the holding device comprises a motor unit (7) accommodating the motor and a bearing unit (4) for rotatably receiving the ultrasonic probe (2). The motor unit (7) and the bearing unit (4) have connection means (11, 12, 13, 14, 22) which can be brought together in a form-locking connection and which produce a detachable, rigid connection of the bearing unit (4) to the motor unit (7).
    公开号:AT519168A1
    申请号:T461/2016
    申请日:2016-10-05
    公开日:2018-04-15
    发明作者:
    申请人:Acmit Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a device for performing a transrectal ultrasound, comprising a holding device for a rod-shaped ultrasound probe, which has a drive with a motor for rotating the ultrasound probe about its longitudinal axis.
    Devices for performing transrectal sonography are known in the art and are used for various medical applications. Ultrasound results in a two- or three-dimensional image that allows, for example, visual control in the positioning of medical tool or in the introduction and positioning of debris in the patient.
    The introduction of foreign bodies, such as e.g. Implants, in the body of a patient, are usually for therapeutic purposes. One application case is brachytherapy. Radiation-radiating implants, called seeds, are implanted into a patient's organ to be treated, either permanently or temporarily, in order to locally irradiate a tissue disease, such as a tumor, directly inside the body.
    In this way, e.g. a prostate carcinoma or a cervical carcinoma. For introduction of the radiation sources often so-called applicators or guides, such as. catheter-like devices or hollow needles, inserted or implanted into the body, near the tumor or directly into the tumor tissue.
    The introduction of the guides and the radiation sources takes place in the treatment of cervical carcinoma via a vaginal approach. Simultaneous sonography is performed via a rectal access, allowing the medical staff to perform real-time optical position control during positioning of the guides or radiation sources. Due to the limited space available, the simultaneous operation and manipulation of the sonography device and the equipment required to import the guides for the radiation sources and the radiation sources themselves are difficult. This is particularly the case when the sonography device comprises a so-called stepper with a motor drive which makes a longitudinal displacement and a rotation of the ultrasound probe about its longitudinal axis in order to rotate and / or scan the probe relative to the organ to be examined. The drive is required to achieve a stepwise displacement of the image plane of the ultrasound probe at predefined time intervals. The image sequence generated in this way is combined in a computer unit assigned to the ultrasound probe to form a three-dimensional image. A disadvantage of the conventional sonography devices is that the structural complexity required for the stepper is great and the stepper has a large footprint and a large weight.
    Bulky and heavy sonography devices are disadvantageous if the ultrasound probe is to be manipulated by dogs before the actual, motor-assisted image generation is carried out. The manual guidance of the ultrasound probe is necessary, for example, for the rectal insertion of the probe, because here the individual anatomy of the patient has to be considered in order to avoid injuries. Furthermore, the search and reaching for the visual capture of the
    Target area optimal position of the ultrasound probe manually done.
    The present invention therefore aims to improve a sonography device of the type mentioned in that both a manual and a motor guide or mode of operation are possible and can be changed between the modes in a simple manner. Furthermore, the size and weight of the sonography device should be kept small.
    To achieve this object, the invention essentially provides in a sonography device of the type initially mentioned, that the holding device comprises a motor unit receiving the motor and a bearing unit for rotatably receiving the ultrasound probe, and that the motor unit and the bearing unit have connection means which can be brought together in a form-locking connection, which produce a detachable, rigid connection of the bearing unit with the motor unit.
    Characterized in that the holding device is divided into two parts in a motor unit and a storage unit, a coupling and uncoupling of the drive motor in a simple manner is possible. For manual operation of the sonography device, the motor unit can be decoupled from the storage unit. For motorized operation, the motor unit is coupled to the storage unit. The coupling or decoupling of the motor unit takes place by means of connecting means provided according to the invention which can be brought into positive connection with one another. The thus obtained positive connection between the motor unit and the
    Bearing unit establishes a rigid connection between the two units, wherein the connecting means are designed such that the rigid connection is non-destructive solvable if necessary.
    The embodiment of the invention allows an application in which the ultrasound probe can be manually inserted rectally in its recorded in the storage unit state. The motor unit is disconnected, so that the ultrasonic probe is free of unnecessary ballast. Observing the images obtained via the ultrasound probe, the attending physician can seek out a position of the ultrasound probe which gives optimum image information for the subsequent procedure, in particular for the vaginal introduction of seeds.
    While maintaining the detected position of the ultrasound probe then the coupling of the motor unit takes place. The motor unit is already mounted on an arm of a stationary manipulator in the coupling to the bearing unit or is attached after coupling to this. This fixes the position of the ultrasound device.
    The bearing unit according to the invention is designed such that the ultrasonic probe is rotatably received therein, so that the bearing unit is designed as a pivot bearing for the ultrasonic probe. The motor arranged in the motor unit in this case causes a rotation of the ultrasound probe about the longitudinal axis of the same, wherein the motor is controlled in steps to achieve at defined time intervals, a gradual rotation of the image plane about the axis of rotation. The image series recorded in this way can be connected in a
    Computing unit are assembled into a three-dimensional image, it is necessary for correct image information that the axis of rotation of the ultrasound probe remains rigid.
    The connecting means of the motor unit and the bearing unit are designed such that the bearing unit and the motor unit are always immovably held together in an interconnected state in the same relative position to each other, a positional fixation is ensured both translationally and rotationally.
    A preferred embodiment provides that first connecting means of the motor unit and the bearing unit together form a latching or snap closure. A latch or snap closure allows a simple and stable connection of the motor unit with the bearing unit. In order to solve such a locking or snap closure, it can be provided that the positive connection between the form-fitting mutually cooperating connecting members by manual displacement of at least one of the connecting members is solvable.
    Furthermore, it is preferably provided that second connecting means have at least one pivot axis and a pivot bearing, wherein the pivot bearing is designed to be open, so that the pivot axis in a direction transverse to the pivot axis in the pivot bearing is insertable.
    In combination with the first connection means described above, such a design allows a connection process in which the at least one pivot axis is first inserted into the pivot bearing and the bearing unit is then tilted about the pivot axis in the direction of the motor unit until the latch or snap closure is made , The connection process is therefore characterized by a simple insertion and subsequent pivoting movement.
    In order to achieve a stable position fixing of the bearing unit relative to the motor unit in their interconnected state, it is preferably provided that the bearing unit has a curved, in particular cylindrically curved, outer circumferential surface and the motor unit has a correspondingly curved bearing surface. As a result, in the connected state, a planar contact between the outer circumferential surface of the bearing unit and the bearing surface of the motor unit assigned thereto is made possible.
    A further preferred embodiment provides that the bearing unit and the motor unit have drivingly cooperating, different from the connecting means drive elements for transmitting a rotational movement of the motor to the ultrasonic probe. This design thus provides for a functional separation between the components responsible for fixing the position of the bearing unit on the motor unit and the components responsible for transmitting the rotational movement from the drive motor to the ultrasound probe. The positioning is carried out, as already mentioned, preferably via the interaction of the outer circumferential surface of the bearing unit with the bearing surface of the motor unit and by means of the connecting means cooperating with one another. The rotational drive of the ultrasonic probe, however, takes place over different
    Drive elements, wherein the drive elements preferably comprise a drivable by the motor, arranged in the motor unit gear and a non-rotatably connectable to the ultrasonic probe, in particular arranged in the bearing unit, gear, which are in the connected to the motor unit state of the bearing unit with each other. A particularly advantageous embodiment is achieved when the axis of rotation of the drive motor is parallel to the axis of rotation of the ultrasonic probe. The gears can be designed as conventional spur gears.
    A preferred embodiment provides that the gears are excellently arranged in the engagement portion of a formed in the outer circumferential surface of the bearing unit or in the bearing surface of the motor unit recess.
    The rotary mounting of the ultrasound probe in the bearing unit preferably takes place in that the bearing unit has a cylindrical bearing shell, which cooperates with a cylindrical bearing surface of the ultrasound probe. The bearing is designed in particular as a dry sliding bearing. The cylindrical bearing shell encloses the ultrasound probe completely, wherein the ultrasound probe can perform a rotation by at least 360 °. Preferably, the cylindrical bearing shell of the bearing unit is designed undivided, so that the ultrasound probe can be pushed into the bearing unit in the axial direction. The ultrasonic probe and the gear are rotatably connected to each other, for which purpose preferably a positive shaft-hub connection, such as. A feather or the like. May be provided.
    A further preferred embodiment provides that a locking device is provided for locking the rotational position of the ultrasound probe relative to the bearing unit. The locking of the rotational position of the ultrasonic probe is advantageous if the current rotational position is to be maintained after a decoupling of the motor unit, for example. To go out at a later re-coupling of the motor unit from the same rotational position.
    Preferably, the sonography device has no further drives in addition to the rotary drive, in particular no drive for a displacement of the ultrasound probe in the longitudinal direction, d, h. in the direction of the rod axis of the probe, relative to the motor unit.
    The division of the ultrasound device into a motor unit and a bearing unit accommodating the ultrasound probe facilitates the sterilization process. Hygiene regulations require that a clear distinction be made between sterile and non-sterile devices or components thereof. In the present case, the storage unit and possibly the ultrasound probe can be sterilized when removed from the motor unit state using conventional sterilization devices. The motor unit, however, can not be easily sterilized due to the electrical components. However, in the division plane between the motor unit and the bearing unit, a film or the like may be easily arranged to delineate the sterile area from the non-sterile area.
    The invention will be explained in more detail with reference to an embodiment schematically illustrated in the drawing. 1 shows a perspective view of the sonography device according to the invention, FIG. 2 shows a view according to FIG. 1, in which the bearing unit is decoupled from the motor unit, FIG. 3 shows a longitudinal section through the embodiment according to FIG. 1, FIG enlarged section of the longitudinal section during the coupling of the bearing unit to the motor unit and Fig. 5 shows a cross section along the line VV of Fig. 3rd
    In Fig. 1, the sonography apparatus is shown generally at 1. The ultrasound device comprises a rod-shaped ultrasound probe 2 with a rounded insertion end. The rod-shaped ultrasound probe 2 is provided with a length marker 3, which detects the extent of rectal insertion. The ultrasonic probe 2 is freely rotatably received in a bearing unit 4. At the rear end 5 of the ultrasonic probe 2 protruding from the bearing unit 4, a cable 6 leads out, which allows the electrical connection of the ultrasound probe 2 to a computing and display unit. The bearing unit 4 is coupled to a motor unit 7, in which a drive motor is arranged. The motor unit 7 is provided on its underside with a mounting part 8, which allows the attachment of the sonography device 1 to an arm of a stationary stand or manipulator device.
    FIG. 2 shows that the bearing unit 4 together with the ultrasound probe 2 rotatably received therein can be disconnected from the motor unit 7. The bearing unit 4 has a cylindrical lateral surface 9 which, in the state coupled to the motor unit 7, rests flat on a bearing surface 10 of the motor unit 7. The rigid positional fixation of the bearing unit 4 on the motor unit 7 is achieved by connecting means, which ensure a positive connection between the two parts to be joined together. The connecting means comprise a pivot pin 11 arranged on the right of the longitudinal center plane of the bearing unit 4 and a corresponding pivot pin 11 (not shown) arranged to the left of the longitudinal center plane, which can be inserted along the guide groove 12 into a pivot bearing 13 which is open towards the guide groove 12. For this purpose, the bearing unit 4 together with the ultrasonic probe 2 is approximated in the inclined position shown in Fig. 2 to the motor unit 7. Once the pivot pins 11 have been inserted into the pivot bearing 13, a tilting movement about the axis of rotation formed by the pivot pin 11 can be made to the arranged at the rear end of the bearing unit 4 locking or snap connection means 14 in the direction of arrow 15 with corresponding, in bring the motor unit 7 arranged counterparts in latching or snap connection. The positive connection thus produced between the connecting links of the bearing unit 4 and the connecting links of the motor unit 7 causes a rigid connection between the two units.
    To transmit the rotation from the motor to the ultrasonic probe 2, the motor is connected to a gear 16, which protrudes from a formed in the support surface 10 window 17.
    In the sectional view of FIG. 3, the storage unit 4 is shown coupled to the motor unit 7 state. In the sectional view of the arranged in the motor unit 7 electric motor 18 can be seen, which is rotatably connected to the gear 16. The gear 16 meshes with a arranged in the bearing unit 4 gear 19 which is rotatably connected to the ultrasonic probe 2. Thereby, the rotation of the motor is transmitted to the ultrasonic probe 2.
    The bearing of the ultrasonic probe 2 in the bearing unit 4 takes place on a cylindrical inner lateral surface of the sleeve 20 forming the bearing shell.
    In the enlarged view of FIG. 4 it can be seen that the cooperating with the Verbindunsglied 14 of the bearing unit 4 counter-member is formed by an extension 22 which is coupled to a button-like member 21 and movable relative to a rigid guide member 23 in the direction of the double arrow 24 is arranged. If the connecting member 14 collides with the downwardly tilting of the bearing unit according to the arrow 15 with the pin-like extension 22, this is pushed to the outside until the extension 22 engages in the opening provided in the locking member 14 opening 25. The latching movement is effected here by a spring, not shown.
    In the sectional view according to FIG. 5, it can be seen that the ultrasonic probe 2 is coupled in a form-fitting and non-rotatably connected manner to the toothed wheel 19 by means of a feather key 26.
    权利要求:
    Claims (8)
    [1]
    claims:
    1. An apparatus for performing a transrectal ultrasound, comprising a holding device for a rod-shaped ultrasonic probe, which has a drive with a motor for rotating the ultrasonic probe about its longitudinal axis, characterized in that the holding device is a motor-accommodating motor unit and a bearing unit for rotatably receiving the Includes ultrasonic probe and that the motor unit and the bearing unit in a form-locking connection with each other engageable connecting means, which produce a detachable, rigid connection of the bearing unit with the motor unit.
    [2]
    2. Apparatus according to claim 1, characterized in that first connecting means of the motor unit and the bearing unit together form a latching or snap closure.
    [3]
    3. Apparatus according to claim 1 or 2, characterized in that second connecting means comprise at least one pivot axis and a pivot bearing, wherein the pivot bearing is open, so that the pivot axis in a direction transverse to the pivot axis in the pivot bearing is inserted.
    [4]
    4. Apparatus according to claim 1, 2 or 3, characterized in that the bearing unit has a curved, in particular cylindrically curved, outer circumferential surface and the motor unit has a correspondingly curved bearing surface.
    [5]
    5. Device according to one of claims 1 to 4, characterized in that the bearing unit and the motor unit drivingly cooperating with each other, have different drive elements from the connecting means for transmitting a rotary motion of the motor to the ultrasonic probe.
    [6]
    6. The device according to claim 5, characterized in that the drive elements comprise a drivable by the motor, arranged in the motor unit gear and a rotationally fixed connectable to the ultrasonic probe, in particular arranged in the bearing unit, the gear in the connected to the motor unit state of the bearing unit with each other engage.
    [7]
    7. The device according to claim 6, characterized in that the gears are arranged excellently in the engagement portion of a formed in the outer circumferential surface of the bearing unit or in the bearing surface of the motor unit recess. Θ. Device according to one of claims 1 to 7, characterized in that the bearing unit comprises a cylindrical bearing shell, which cooperates with a cylindrical bearing surface of the ultrasonic probe.
    [9]
    9. Device according to one of claims 1 to 8, characterized in that a locking device is provided for locking the rotational position of the ultrasonic probe relative to the bearing unit.
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    同族专利:
    公开号 | 公开日
    AT519168B1|2018-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10013783A1|1999-03-23|2000-10-19|Nihon Kohden Corp|Rotator for ultrasonic probe used in medical diagnosis, has cylinder to freely support probe housing during insertion via inner and outer liners|
    EP1876960B1|2005-04-15|2011-06-08|Prisma Medical Technologies LLC|Transducer assembly for use with a connectorized ultrasound probe and connectorized ultrasound probe comprising said tranducer assembly|
    US20090143679A1|2007-09-28|2009-06-04|The University Of British Columbia|Method and apparatus for imaging the mechanical properties of tissue from an endocavity|
    WO2012151053A1|2011-05-03|2012-11-08|Devicor Medical Products, Inc.|Biopsy device with manifold alignment feature and tissue sensor|WO2021208047A1|2020-04-16|2021-10-21|中国科学院深圳先进技术研究院|Ultrasound imaging device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA461/2016A|AT519168B1|2016-10-05|2016-10-05|ultrasound device|ATA461/2016A| AT519168B1|2016-10-05|2016-10-05|ultrasound device|
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