Ultrasonic probe apparatus

• US 5,381,794 A
• Filed: 01/21/1993
• Issued: 01/17/1995
• Est. Priority Date: 01/21/1993
• Status: Expired due to Term

• Current Assignee: Chuwa Tei, Hitachi Aloka Medical, Ltd (Hitachi, Ltd.)
• Original Assignee: Chuwa Tei, Aloka Company Limited (Hitachi, Ltd.)
• Inventors: Hosokawa, Takashi, Ito, Hisao, Kato, Tomoyuki, Yoshikawa, Yoshihiro, Tei, Chuwa, Takekawa, Wataru
• Primary Examiner(s): JAWORSKI, FRANCIS J
• Application Number:
  US08/007,346
• Time in Patent Office: 726 Days
• Field of Search: 128/660.08-661.10, 128/662.03-662.06
• US Class Current: 600/459
• CPC Class Codes: A61B 8/0883 for diagnosis of the heart
• CPC Class Codes: A61B 8/4209 by using holders, e.g. positioning frames
• CPC Class Codes: A61B 8/4236 characterised by adhesive patches
• CPC Class Codes: A61B 8/4281 characterised by sound-transmitting media or devices for coupling the transducer to the tissue
• CPC Class Codes: A61B 8/582 Remote testing of the device
• CPC Class Codes: G10K 11/35 using mechanical steering of transducers or their beams

Abstract

An ultrasonic probe apparatus suitable for use in stress echocardiography testing is disclosed. This ultrasonic probe apparatus comprises, an ultrasonic probe provided with a phased array transducer for transmitting and receiving ultrasonic waves; a supporting member for supporting the ultrasonic probe rotationally and pivotally; and a plurality of deformable holding legs provided on the supporting member and formed of a copper plate coated with plastic so as to be able to be easily deformed by hand and further maintain its deformed state for a long time. Therefore, the ultrasonic probe apparatus can hold the ultrasonic probe stably onto a body surface of a person to be examined for a long time by appropriately deforming or bending any of the holding legs and then attaching the legs on the body surface in such a manner that the probe is in contact with the body surface, even if the body surface has various shape and unevenness. Further, the apparatus comprises a first motor for rotating the probe and a plurality of second motors for pivotally inclining the probe, so that the contact angle and direction of the probe with respect to the body surface of the examined person in exercise can be adjustably corrected or changed by remote control when the probe is dislocated or a scanning plane is required to be changed during the stress echocardiography testing.

Claims

1. An ultrasonic probe apparatus comprising:

an ultrasonic probe provided with a phased array transducer for transmitting and receiving ultrasonic waves;

means for supporting said ultrasonic probe rotatably and pivotally; and

means for holding said supporting means which supports said ultrasonic probe on a body surface of an object to be examined in such a manner that ultrasonic beams transmitted from the transducer of the probe are directed to a region in the body to be diagnosed,

said holding means including a plurality of elongated holding legs coupled to said supporting means so as to extend therefrom radially and outwardly with respect to a rotation axis of the probe and adapted to maintain direct contact with the body surface,

said holding legs being adapted to be freely deformable according to a profile of the object to be examined and further retainable in the deformed state, and said holding legs adapted to be attached to the body surface with fixing means such as an adhesive tape so that said probe is held onto the body surface irrespective of the profile of the object to be examined, the ultrasonic beams from said probe directed to the region to be diagnosed by appropriately deforming the holding legs to meet with the profile of the object to be examined.

2. The ultrasonic probe apparatus of claim 1, wherein each of said holding legs is formed of a metallic material having such a flexural rigidity that could be easily plastically-deformed.

3. The ultrasonic probe apparatus of claim 2, wherein the metallic material is a copper.

4. The ultrasonic probe apparatus of claim 2, wherein at least one coating layer formed of polymer is provided on the surface of the metallic material.

5. The ultrasonic probe apparatus of claim 4, wherein the coating layer is formed over the entire of each leg.

6. The ultrasonic probe apparatus of claim 4, wherein the coating layer is formed of medical unplasticized polyvinyl chloride.

7. The ultrasonic probe apparatus of claim 4, wherein the coating layer is formed of silicone materials.

8. The ultrasonic probe apparatus of claim 2, wherein said supporting member has a lower part, and the plurality of holding legs includes four holding legs fixed in an X-shape configuration extending radially around the lower part of the supporting member, and each of the legs formed into a fiat plate-like configuration having a narrow width.

9. The ultrasonic probe apparatus of claim 1, wherein said supporting member comprises a first holder for supporting said ultrasonic probe therewithin, and a second holder for rotatably and pivotally supporting said first holder.

10. The ultrasonic probe apparatus of claim 9, further comprising means for shifting said ultrasonic probe in any desired directions by remote control under the condition that said probe is held on the surface of the object to be examined.

11. The ultrasonic probe apparatus of claim 10, wherein said ultrasonic probe shifting means comprises means for rotating said first holder relative to said second holder, and means for pivoting or inclining said first holder relative to said second holder.

12. An ultrasonic probe apparatus comprising:

an ultrasonic probe provided with a phased array transducer for transmitting and receiving ultrasonic waves;

means for supporting said ultrasonic probe rotatably and pivotally including a first holder for supporting said ultrasonic probe therewithin, and a second holder for rotatably and pivotally supporting said first holder; and

means for holding said supporting means which supports said ultrasonic probe on a surface of an object to be examined, said holding means being adapted to be freely deformable according to a figure of the object to be examined and further retainable in the deformed state;

means for shifting said ultrasonic probe in any desired direction by remote control under the condition that said probe is held on the surface of the object to be examined, said ultrasonic probe shifting means including a first electric motor provided on said second holder, and a roller arranged in contact with said first holder and rotated by said first electric motor for rotating said first holder relative to said second holder, and means for pivoting or inclining said first holder relative to said second holder.

13. The ultrasonic probe apparatus of claim 12, wherein said first electric motor rotates said first holder within an angular range between +90 and -90 degrees.

14. The ultrasonic probe apparatus of claim 13, wherein said pivoting means comprises at least one second electric motor provided on said second holder, and at least one movable member movable in and out by said second electric motor in a radial direction perpendicular to an axis of said second holder, in which said first holder being adapted to be pivotally inclined with respect to said second holder when said movable member is brought into contact with said first holder.

15. The ultrasonic probe apparatus of claim 14, wherein said pivoting means comprises three sets of second electric motors and movable members which are respectively arranged at constant angular intervals along a circumferential direction of said second holder.

16. An ultrasonic probe apparatus comprising:

an ultrasonic probe provided with a phased array transducer for transmitting and receiving ultrasonic waves;

means for supporting said ultrasonic probe pivotally and rotationally;

means for holding said supporting means which supports said ultrasonic probe on a surface of an object to be examined so that ultrasonic beams transmitted from the transducer of the probe are directed to a region to be diagnosed,

said holding means including a plurality of elongated holding legs attached to said supporting means so as to extend therefrom radially and outwardly with respect to a rotation axis of the probe in direct contact with the body surface, each holding leg adapted to be freely deformable to conform with a figure of the object to be examined and further retainable in the deformed state;

fixing means such as adhesive tape for attaching the holding legs directly to the body surface so that said probe is held against the body surface irrespective of the figure of the object to be examined, the ultrasonic beams of said probe directed to the region to be diagnosed by appropriately deforming the holding legs so as to meet with the figure of the object to be examined; and

means for shifting said ultrasonic probe in any desired direction by remote control under the condition that said ultrasonic probe is held on the surface of the object to be examined by said holding means.

17. The ultrasonic probe apparatus of claim 16, wherein said supporting member comprises a first holder for supporting said ultrasonic probe therewithin, and a second holder for rotatably and pivotally supporting said first holder.

18. The ultrasonic probe apparatus of claim 17, wherein said ultrasonic probe shifting means comprises means for rotating said first holder relative to said second holder, and means for pivoting said first holder relative to said second holder.

19. An ultrasonic probe apparatus comprising:

an ultrasonic probe provided with a phased array transducer for transmitting and receiving ultrasonic waves;

means for supporting said ultrasonic probe pivotally and rotationally including a first holder for supporting said ultrasonic probe therewithin, and a second holder for rotatably and pivotally supporting said first holder;

means for holding said supporting means which supports said ultrasonic probe on a surface of an object to be examined; and

means for shifting said ultrasonic probe in any desired direction by remote control under the condition that said ultrasonic probe is held on the surface of the object to be examined by said holding means, said shifting means including a first electric motor provided on said second holder, and a roller arranged in contact with said first holder and rotated by said first electric motor for rotating said first holder relative to said second holder, and means for pivoting said first holder relative to said second holder.

20. The ultrasonic probe apparatus of claim 19, wherein said first electric motor rotates said first holder within an angular range between +90 and -90 degrees.

21. The ultrasonic probe apparatus of claim 20, wherein said pivoting means comprises at least one second electric motor provided on said second holder, and at least one movable member movable in and out by said second electric motor in a radial direction perpendicular to an axis of said second holder, in which said first holder being adapted to be pivotally inclined relative to said second holder when said movable member is brought into contact with said first holder.

22. The ultrasonic probe apparatus of claim 21, wherein said pivoting means comprises three sets of second electric motors and movable members which are respectively arranged at constant angular intervals along a circumferential direction of said second holder.

23. An ultrasonic probe apparatus comprising:

an ultrasonic probe provided with a transducer for transmitting and receiving ultrasonic waves;

means for supporting said ultrasonic probe rotationally and pivotally, said supporting means including a first holder for supporting said ultrasonic probe therewithin, and a second holder for rotationally and pivotally supporting said first holder;

means for holding said supporting means which supports said ultrasonic probe on a surface of an object to be examined in such a manner that ultrasonic beams transmitted from the transducer of the probe are directed to a region to be diagnosed, said holding means including a plurality of holding legs provided on said supporting means so as to extend therefrom radially and outwardly with respect to the rotation axis of the probe in direct contact with the surface, said holding legs being adapted to be freely deformable according to a figure of the object to be examined and retainable in the deformed state,

said holding legs adapted to be attached to the body surface with fixing means such as an adhesive tape, whereby said probe can be retained against varying body surface shapes, the ultrasonic beams transmitted from the transducer of said probe thereby directed to the region to be diagnosed by appropriately deforming the holding legs to meet with the body surface shape of the object to be examined; and

means for changing the direction of the ultrasonic probe in any desired direction by remote control under the condition that said probe is held on the surface of the object to be examined, said direction changing means including means for rotating said first holder relative to said second holder, and means for pivotally inclining said first holder relative to said second holder.

24. An ultrasonic probe holding apparatus comprising:

means for supporting an ultrasonic probe provided with a transducer for transmitting and receiving ultrasonic waves rotationally and pivotally; and

means for holding said supporting means on a surface of an object to be examined, said holding means including a plurality of holding legs each extending from the supporting means to an end section in an initial configuration so as to extend therefrom radially and outwardly with respect to the rotation axis of the probe and adapted so that each end section lies fiat in direct contact with the body surface,

said holding legs being adapted to be freely deformable according to a profile of the object to be examined and further retainable in the deformed state while at the same time retaining shape memory of the initial holding leg configuration whereby said support means are held onto variable body surface shapes of the object to be examined, the probe directed to the region to be diagnosed by appropriately deforming the holding legs so as to conform with the profile of the object to be examined.

25. The ultrasonic probe holding apparatus of claim 24, wherein said supporting means comprises a first holder for holding the ultrasonic probe therewithin, and a second holder for pivotally holding said first holder, in which further comprises means for shifting said first holder in any desired directions by remote control under the condition that the ultrasonic probe is held on the surface of the object to be examined, said shifting means including means for rotating the first holder relative to said second holder, and means for pivotally inclining said first holder relative to said second holder.