Magnetically guidable intubation device

• US 5,353,807 A
• Filed: 12/07/1992
• Issued: 10/11/1994
• Est. Priority Date: 12/07/1992
• Status: Expired due to Term

• Current Assignee: Thomas J. Demarco
• Original Assignee: Thomas J. Demarco
• Inventors: DeMarco, Thomas J.
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): Lacyk, John P.
• Application Number:
  US07/985,670
• Time in Patent Office: 673 Days
• Field of Search: 128/653.1, 128/897-899, 128/772, 128/200.026, 128/207.014, 128/207.015
• US Class Current: 600/585
• CPC Class Codes: A61B 1/00078 with stiffening means
• CPC Class Codes: A61B 1/00158 using magnetic field
• CPC Class Codes: A61B 1/0055 Constructional details of insertion parts, e.g. vertebral elements
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 1/31 for the rectum, e.g. proctoscopes, sigmoidoscopes , colonoscopes
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61M 25/0127 Magnetic means; Magnetic markers

Abstract

A magnetically guidable intubation device including performing means for performing a medical procedure. A magnetically guidable member is connected with a device for performing a medical procedure within the body. The magnetically guidable intubation device is effective to be introduced into a patient'"'"'s body and magnetically guided within the body by an externally applied magnetic field. A flexible retrieving member may be fixedly attached to the magnetically guidable member and is used for retrieving the magnetically guided member from the body. An external magnetic field is applied and is effective to guide the magnetically guidable member within the body to perform the medical procedure. The magnetically guidable member may include a core and a conductive winding wound around the core. A remotely controllable current source may be provided for applying an electric current to the winding which is effective to induce a magnetic field around the magnetically guidable member. Thus, by changing the field strength and polarity of the magnetic field around the magnetically guidable member, precise control of the magnetically guidable member can be realized.

Claims

1. A magnetically guidable intubation device, comprising:

performing means for performing a medical procedure;

a magnetically guidable member connected with the performing means and effective to be introduced into a body and magnetically guided within the body by an externally applied magnetic field;

a flexible retrieving member fixedly attached to the magnetically guidable member;

an external magnetic field applying means for applying the external magnetic field effective to guide the magnetically guidable member within the body so that the performing means can perform the medical procedure; and

a plurality of urging plates each disposed around the flexible retrieving member, the plurality of urging plates effective to transfer an externally applied urging force to the magnetically guidable head for urging the magnetically guidable head within the interior of the body.

2. A magnetically guidable intubation device according to claim 1;

wherein the magnetically guidable member includes at least one internal chamber for holding the performing means; and

wherein the flexible retrieving member includes at least one externally accessible duct in communication with the performing means.

3. A magnetically guidable intubation device according to claim 1;

wherein the performing means includes at least one of substance delivering means for delivering a substance to the interior of the body, therapeutic means for performing a therapeutic medical procedure in the interior of the body, diagnostic means for performing a diagnostic procedure in the interior of the body and imaging means for imaging an interior portion of the body, the imaging means comprising at least one of a fiber optic member, a video camera and a CCD camera, the video camera and the CCD camera effective to produce a signal corresponding to an image for display on a monitor positioned outside the body.

4. A magnetically guidable intubation device according to claim 3;

wherein the magnetically guidable member includes at least one internal chamber for holding the performing means; and

wherein the flexible retrieving member includes at least one externally accessible duct in communication with the performing means.

5. A magnetically guidable intubation device according to claim 1;

wherein the magnetically guidable member further comprises a core and a conductive winding wound around the core; and

further comprising a remotely controllable current source for applying an electric current to the winding effective to induce a magnetic field around the magnetically guidable member.

6. A magnetically guidable intubation device according to claim 1;

further comprising at least one spring member disposed between at least two adjacent urging plates.

7. A magnetically guidable intubation device according to claim 1;

further comprising a sheath covering at least one of at least a portion of the magnetically guidable member and at least a portion of the plurality of urging plates.

8. A magnetically guidable intubation device according to claim 7, wherein the sheath is self-lubricating.

9. A magnetically guidable intubation device according to claim 1;

further comprising externally positioned detecting means for detecting a position of the magnetically guidable member and generating a detection signal in response thereto, the detecting means comprising at least one of an x-ray imaging device, an ultrasound imaging device and a magnetic field detecting device.

10. A magnetically guidable intubation device according to claim 1;

wherein the external magnetic field applying means includes an electro-magnetic field source; and

controlling means for controlling the position of the magnetic field produced by the electromagnetic field source and for controlling the magnetic field strength of the magnetic field produced by the electro-magnetic field source to magnetically guide the magnetically guidable member within the body.

11. A magnetically guidable intubation device, comprising:

performing means for performing a medical procedure;

a magnetically guidable member connected with the performing means and effective to be introduced into a body and magnetically guided within the body by an externally applied magnetic field;

a flexible retrieving member attached to the magnetically guidable member;

an external magnetic field applying means for applying the external magnetic field effective to guide the magnetically guidable member within the body so that the performing means can perform the medical procedure, the external magnetic field applying means including a magnetic field applying plate comprising at least one individually controllable electromagnetic field source having a core and an electrically conductive winding, and external field controlling means for controlling a current applied to the electrically conductive winding for controlling the externally applied magnetic field.

12. A magnetically guidable intubation device according to claim 11;

wherein the magnetic field applying plate is curved so as to form a space to receive a portion of a body in which the magnetically guided member is guided, and comprises a plurality of individually controllable electromagnetic sources positioned to apply the externally applied magnetic field within the space.

13. A magnetically guidable intubation device according to claim 11;

wherein the magnetically guidable member includes at least one internal chamber for holding the performing means; and

wherein the flexible retrieving member includes at least one externally accessible duct in communication with the performing means.

14. A magnetically guidable intubation device according to claim 11;

wherein the performing means includes at least one of substance delivering means for delivering a substance to the interior of the body, therapeutic means for performing a therapeutic medical procedure in the interior of the body, diagnostic means for performing a diagnostic procedure in the interior of the body and imaging means for imaging an interior portion of the body, the imaging means comprising at least one of a fiber optic member, a video camera and a CCD camera to produce a signal corresponding to an image for display on a monitor positioned outside the body.

15. A magnetically guidable intubation device according to claim 14;

wherein the magnetically guidable member includes at least one internal chamber for holding the performing means; and

wherein the flexible retrieving member includes at least one externally accessible duct in communication with the performing means.

16. A magnetically guidable intubation device according to claim 11;

wherein the magnetically guidable member further comprises a core and a conductive winding wound around the core; and

further comprising a remotely controllable current source for applying an electric current to the winding effective to induce a magnetic field around the magnetically guidable member.

17. A magnetically guidable intubation device according to claim 11;

further comprising externally positioned detecting means for detecting a position of the magnetically guidable member and generating a detection signal in response thereto.

18. A magnetically guidable intubation device, comprising:

performing means for performing a medical procedure having a substance delivering means for delivering a substance to an interior portion of a body and comprising a chamber for carrying a substance and a substance releasing mechanism for releasing the substance;

a self-contained magnetically guidable member connected with the performing means and effective to be introduced into a body and magnetically guided within the body by an externally applied magnetic field; and

external magnetic field applying means for applying the external magnetic field effective to guide the magnetically guidable member within the body so that the performing means can perform the medical procedure.

19. A magnetically guidable intubation device according to claim 18;

wherein the performing means comprising imaging means for imaging an interior portion of the body comprising image receiving means for receiving an image and generating a signal dependent thereon and transmitting means for transmitting the signal to a monitor disposed outside the body for displaying the image.

20. A magnetically guidable intubation device according to claim 18;

wherein the substance releasing mechanism includes at least one of a permeable membrane, an exit orifice and a remotely controlled hatch.

21. A magnetically guidable intubation device according to claim 20;

wherein the substance releasing mechanism includes means for releasing the substance in response to an externally applied magnetic field.

22. A magnetically guidable intubation device according to claim 18;

wherein the external magnetic field applying means includes a magnetic field applying plate comprising at least one individually controllable electromagnetic field source, and external field controlling means for controlling the externally applied magnetic field.

23. A magnetically guidable medical device for use within the large intestine of a human body comprising:

performing means for performing a medical procedure; and

magnetic guiding means comprising a magnetically guidable member connected with the performing means and effective to be introduced into a the large intestine through the rectum of the human and magnetically guided within the large intestine by an externally applied magnetic field, an external magnetic field applying means for applying the external magnetic field effective to guide the magnetically guidable member within the body so that the performing means can perform the medical procedure, wherein at least one of the magnetically guidable member and the external magnetic field applying means comprises a variable electromagnetic field source, and external field controlling means for controlling a current applied to the variable electromagnetic field source.

24. A magnetically guidable intubation device according to claim 23;

wherein the magnetically guidable member comprises a core and a conductive winding wound around the core; and

further comprising a remotely controllable current source for applying an electric current to the winding effective to induce a magnetic field around the magnetically guidable member.

25. A magnetically guidable intubation device according to claim 23;

wherein the external magnetic field applying means includes a magnetic field applying plate comprising at least one individually controllable electromagnetic field source having a core and an electrically conductive winding, and the external field controlling means including means for controlling a current applied to the electrically conductive winding for controlling the externally applied magnetic field.

26. A magnetically guidable intubation device according to claim 23;

wherein the magnetically guidable member includes at least one internal chamber for holding the performing means; and

further comprising a flexible retrieving member attached to the magnetically guidable member for retrieving the magnetically guidable member from the intestine and having at least one externally accessible duct in communication with the performing means.

27. A magnetically guidable intubation device according to claim 23;

wherein the performing means includes at least one of substance delivering means for delivering a substance to the interior of the body, therapeutic means for performing a therapeutic medical procedure in the interior of the body, diagnostic means for performing a diagnostic procedure in the interior of the body and imaging means for imaging an interior portion of the body, the imaging means comprising at least one of a fiber optic member, a video camera and a CCD camera to produce a signal corresponding to an image for display on a monitor positioned outside the body.

28. A magnetically guidable intubation device according to claim 23;

further comprising externally positioned detecting means for detecting a position of the magnetically guidable member and generating a detection signal in response thereto.

29. A magnetically guidable intubation device according to claim 23;

wherein the performing means comprises a substance delivering means for delivering the substance to an interior portion of the body comprising a chamber for carrying a substance and a substance releasing mechanism for releasing the substance.

30. A magnetically guidable intubation device according to claim 29;

wherein the substance releasing mechanism includes at least one of a permeable membrane, an exit orifice and a remotely controlled hatch.