Capsulated medical equipment

• US 7,942,811 B2
• Filed: 10/11/2006
• Issued: 05/17/2011
• Est. Priority Date: 10/16/2001
• Status: Expired due to Fees

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Adachi, Hideyuki, Takizawa, Hironobu, Segawa, Hidetake, Yokoi, Takeshi
• Primary Examiner(s): SMITH, PHILIP ROBERT
• Application Number:
  US11/545,985
• Publication Number:
  US 20070032699A1
• Time in Patent Office: 1,679 Days
• Field of Search: 600/109, 600/117, 600/118, 600/160
• US Class Current: 600/117
• CPC Class Codes: A61B 1/00016 using wireless means
• CPC Class Codes: A61B 1/00156 using self propulsion
• CPC Class Codes: A61B 1/00158 using magnetic field
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 1/042 characterised by a proximal camera, e.g. a CCD camera
• CPC Class Codes: A61B 1/273 for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/065 Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 8/13 Tomography A61B8/10, A61B8/12 take precedence; tomography for radiation diagnosis A61B6/02
• CPC Class Codes: A61B 8/565 involving data transmission via a network

Abstract

A capsulated body having a facility, which acquires biomedical information through endoscopic examination or the like, incorporated therein is inserted into a duct within a living body. Whether the capsulated body has halted for a certain period of time is detected from the time-varying position of the capsulated body or a time-passing change in an image. If it is judged that the capsulated body has halted at a stenosed region or the like, the fact is notified so that the capsulated body can be collected immediately.

Claims

1. A capsulated medical equipment comprising:

a capsulated body adapted to be inserted into a subject, the capsulated body comprising;

a biomedical information detecting unit adapted to obtain biomedical information about the subject,

a communication device adapted to modulate the biomedical information into a signal to be transmitted, and

an antenna for transmitting the signal to outside of the subject; and

a receiver located outside of the subject and adapted to be carried by the subject, the receiver comprising;

an extracorporeal antenna unit adapted to receive the signal transmitted from the antenna of the capsulated body,

a demodulation unit adapted to demodulate the received signal to create a biomedical information data of the subject;

a first storage device adapted to store the biomedical information data,

a first display for displaying information,

a position calculation section adapted to calculate a three-dimensional position of the capsulated body based on the strength of the received signal, and

a position change calculation unit adapted to calculate a change in three-dimensional position of the capsulated body over time, to judge whether the calculated change in three-dimensional position over time is equal to or smaller than a pre-set threshold, and if the calculated change in three-dimensional position over time is judged to be equal to or smaller than the pre-set threshold, to instruct the first display to display a warning message;

wherein the first storage device is connectable to a second storage device which stores therein the biomedical information data and which is connected to a second display for displaying the biomedical information data read from the second storage device.

2. The equipment according to claim 1, wherein the first storage device is carried by the subject by using a holder which is worn by the patient.

3. The equipment according to claim 2, wherein the first storage device is separately carried by the subject with respect to the extracorporeal antenna unit.

4. The equipment according to claim 3, wherein the extracorporeal antenna unit includes a plurality of antennae.

5. The equipment according to claim 3, wherein the extracorporeal antenna unit is provided on a wearable garment.

6. The equipment according to claim 2, wherein the biomedical information detecting unit includes an image pickup device for obtaining an image inside of the subject and the image is transmitted to the outside of the subject by a radio signal.

7. The equipment according to claim 2, wherein the receiver demodulates the signal to create an image data of the image, and the image data is stored in the first storage device.

8. The equipment according to claim 7, wherein the information displayed on the first display includes the image.

9. The equipment according to claim 8, wherein the receiver and the first storage unit are placed in an extracorporeal unit to which the extracorporeal antenna unit is connected, and the extracorporeal unit is held by the holder.

10. The equipment according to claim 9, wherein the display is provided on the extracorporeal unit.

11. The equipment according to claim 7,

wherein the information displayed on the first display includes the position information of the capsulated body.

12. The equipment according to claim 1, wherein the information displayed on the first display includes status of the capsulated body.

13. The equipment according to claim 12, wherein the biomedical information detecting unit includes an image pickup device for obtaining an image inside of the subject and the receiver demodulates the signal to create an image data of the image, and the image data is stored in the first storage device.

14. The equipment according to claim 13, further comprising an image change calculating portion which compares the image data acquired at a predetermined time interval tc determine a degree of agreement of the image data, and

wherein the information displayed on the first display includes the status of the capsulated body that is assumed by the comparison.

15. A capsulated medical equipment comprising:

a capsulated body adapted to be introduced into a subject, the capsulated body comprising;

an image pickup device adapted to obtain an image inside of the subject,

a communication device adapted to modulate information on the image obtained by the image pickup device into a signal to be transmitted, and

an antenna for transmitting the signal to outside of the subject; and

a reception system located outside of the subject, the reception system comprising;

a signal processor for receiving and demodulating the signal transmitted from the antenna of the capsulated body to create image data of the image,

a first storage device adapted to store the image data produced by the signal processor,

a first display for displaying information obtained based on the output signal from the capsulated body,

a connector for connecting the first storage device to a computer having a second storage device capable of storing therein the image data of the image and a second display for displaying the image,

a position calculation section adapted to calculate a three-dimensional position of the capsulated body based on the strength of the signal transmitted from the antenna of the capsulated body, and

a position change calculation section adapted to calculate a change in three-dimensional position of the capsulated body over time, to judge whether the calculated change in three-dimensional position over time is equal to or smaller than a pre-set threshold, and if the calculated change in three-dimensional position over time is judged to be equal to or smaller than the pre-set threshold, to instruct the first display to display a warning message.

16. The equipment according to claim 15, wherein the information includes the image obtained by the image pickup device.

17. The equipment according to claim 16, wherein an extracorporeal unit constituting the reception system is placed on the periphery of the subject by using a holder worn by the subject, and the first display is provided on a face of the extracorporeal unit.

18. The equipment according to claim 16, wherein an extracorporeal unit constituting the reception system is placed on the periphery of the subject by using a holder worn by the subject and further comprises a buzzer that sounds a warning for notifying a user of a predetermined event.

19. The equipment according to claim 15, wherein the information includes status of the capsulated body.

20. The equipment according to claim 19, wherein the status displayed on the first display includes a halt of the capsulated body in the patient that is assumed based on a degree of agreement among a plurality of images.

21. The equipment according to claim 19,

wherein the status displayed on the first display includes a halt of the capsulated body that is assumed based on the position information of the capsulated body calculated by the position calculating section.

22. The equipment according to claim 15,

wherein the information displayed on the first display includes the position information of the capsulated body.

23. The equipment according to claim 15, wherein the signal processor is connectable to an antenna unit which is placed on extracorporeal region of the subject to receive the signal outputted from the capsulated body.

24. A reception system for a capsulated medical equipment comprising:

a signal processor for receiving and demodulating a signal transmitted to outside of a subject from a capsulated body that is adapted to be introduced into the subject and that has an image pickup device adapted to obtain an image inside of the subject, to produce an image data of the image, the signal processor being able to be carried by the subject;

a first storage device adapted to store the image data produced by the signal processor;

a first display for displaying information obtained based on the signal outputted from the capsulated body;

a connector for connecting the first storage device to a second storage device capable of storing therein the image data, the second storage device being connected to a second display which can display the image based on the image data read from the second storage device

a position calculation section adapted to calculate a three-dimensional position of the capsulated body based on the strength of the signal transmitted from the capsulated body; and

a position change calculation section adapted to calculate a change in three-dimensional position of the capsulated body over time, to judge whether the calculated change in three-dimensional position over time is equal to or smaller than a pre-set threshold, and if the calculated change in three-dimensional position over time is judged to be equal to or smaller than the pre-set threshold, to instruct the first display to display a warning message.

25. The system according to claim 24, wherein the signal processor and the first storage device are placed in an extracorporeal unit which is held by using a holder worn by the subject.

26. The system according to claim 25, further comprising a buzzer that sounds a warning for notifying a user of a predetermined event.

27. The system according to claim 24, wherein the information displayed on the first display includes the image.

28. The system according to claim 27, wherein the information displayed on the first display includes the position information of the capsulated body.

29. The system according to claim 24, wherein the information displayed on the first display includes status of the capsulated body.

30. The system according to claim 29, further comprising an image change calculating portion which is provided in the extracorporeal unit and which compares the image data acquired at predetermined time interval to determine a degree of agreement of the image data, and

wherein the status that the capsulated body is assumed based on the comparison by the image change calculating portion.

31. A reception system for a capsulated medical equipment comprising:

a signal processor for receiving and demodulating a signal transmitted to outside of a subject from a capsulated body that is adapted to be introduced into the subject and that has an image pickup device adapted to obtain an image inside of the subject, to produce an image data of the image, the signal processor being held in place on the subject;

a first storage device adapted to store the image data produced by the signal processor and to be held in place on the subject;

a buzzer for notifying a user of a predetermined event;

a connector for connecting the first storage device to a second storage device capable of storing therein the image data, the second storage device being connected to a display on which the image based on the image data read from the second storage device can be displayed

a position calculation section adapted to calculate a three-dimensional position of the capsulated body based on the strength of the signal transmitted from the capsulated body; and

a position change calculation section adapted to calculate a change in three-dimensional position of the capsulated body over time, to judge whether the calculated change in three-dimensional position over time is equal to or smaller than a pre-set threshold, and if the calculated change in three-dimensional position over time is judged to be equal to or smaller than the pre-set threshold, to instruct to notify a warning message by the buzzer.

32. The system according to claim 31, wherein the signal processor and the first storage device are placed in an extracorporeal unit which is held by using a holder worn by the subject.

33. The system according to claim 32, further comprising an image change calculating portion which is provided in the extracorporeal unit and which compares the image data acquired at predetermined time interval to determine a degree of agreement of the image data, and

wherein the buzzer notifies the user that the capsulated body is at a halt which is assumed based on the comparison by the image change calculating portion.