CA2394816A1 - Apparatus for mapping and coagulating soft tissue in or around body orifices - Google Patents

Apparatus for mapping and coagulating soft tissue in or around body orifices Download PDF

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Publication number
CA2394816A1
CA2394816A1 CA002394816A CA2394816A CA2394816A1 CA 2394816 A1 CA2394816 A1 CA 2394816A1 CA 002394816 A CA002394816 A CA 002394816A CA 2394816 A CA2394816 A CA 2394816A CA 2394816 A1 CA2394816 A1 CA 2394816A1
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CA
Canada
Prior art keywords
probe
support body
mapping
hoop
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002394816A
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French (fr)
Other versions
CA2394816C (en
Inventor
Huy D. Phan
David K. Swanson
Josef V. Koblish
Russell B. Thompson
Thomas R. Jenkins
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Boston Scientific Ltd Barbados
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Individual
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Filing date
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Publication of CA2394816A1 publication Critical patent/CA2394816A1/en
Application granted granted Critical
Publication of CA2394816C publication Critical patent/CA2394816C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00065—Material properties porous
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00071—Electrical conductivity
    • A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00089—Thermal conductivity
    • A61B2018/00095—Thermal conductivity high, i.e. heat conducting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/0016—Energy applicators arranged in a two- or three dimensional array
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A61B2018/0022—Balloons
    • A61B2018/00238—Balloons porous
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A61B2018/00267—Expandable means emitting energy, e.g. by elements carried thereon having a basket shaped structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00273—Anchoring means for temporary attachment of a device to tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345—Vascular system
    • A61B2018/00351—Heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/105—Balloon catheters with special features or adapted for special applications having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves

Abstract

A probe that mays be used to create circumferential lesions in body tissue and, in some implementations, may also be used to perform mapping functions.
The probe includes a collapsible/expandable structure that supports electrodes or other operative elements against the body tissue.

Claims (57)

1. A probe, comprising:
a support body;
an expandable/collapsible tissue coagulation structure supported on the support body; and a mapping structure supported on the support body distally of the expandable/collapsible tissue coagulation structure.
2. A probe as claimed in claim 1, wherein the support body comprises a catheter.
3. A probe as claimed in claim 1, wherein the expandable/collapsible tissue coagulation structure comprises an inflatable structure.
4. A probe as claimed in claim 3, wherein the inflatable structure defines an interior and the support body includes a fluid lumen operably connected to the interior of the inflatable structure.
5. A probe as claimed in claim 3, wherein the inflatable structure comprises a non-porous, relatively thermally conductive structure.
6. A probe as claimed in claim 5, further comprising:
a fluid heating element located within the interior of the inflatable structure.
7. A probe as claimed in claim 3, wherein the inflatable structure comprises a porous structure.
8. A probe as claimed in claim 7, wherein the porous structure includes a porous region and a non-porous region.
9. A probe as claimed in claim 7, further comprising:

an electrode located within the interior of the inflatable structure.
10. A probe as claimed in claim 1, wherein the expandable/collapsible tissue coagulation structure comprises a hoop structure and at least one operative element supported on the hoop structure.
11. A probe as claimed in claim 10, wherein the support body defines a longitudinal axis and the hoop structure defines a plane perpendicular to the longitudinal axis.
12. A probe as claimed in claim 10, wherein the hoop structure comprises a hoop spline and at least first and second support splines.
13. A probe as claimed in claim 12, wherein the hoop structure collapses in response to movement of the first and second support splines in opposite directions.
14. A probe as claimed in claim 13, wherein the support body comprises a first support body member defining an inner lumen and a second support body member movable within the inner lumen, the first support spline is operably connected to the first support body member, and the second support spline is operably connected to the second support body member.
15. A probe as claimed in claim 10, wherein the hoop structure comprises a hoop spline, a plurality of support splines, and first and second proximally extending stylets.
16. A probe as claimed in claim 15, wherein the hoop structure collapses in response to movement of the first and second stylets in opposite directions.
17. A probe as claimed in claim 10, wherein the hoop structure comprises a helical support structure.
18. A probe as claimed in claim 10, wherein the at least one operative element comprises a plurality of spaced electrodes.
19. A probe as claimed in claim 1, wherein the mapping structure comprises an expandable/collapsible mapping basket.
20. A probe as claimed in claim 19, wherein the expandable/collapsible mapping basket comprises at least two splines respectively supporting at least two electrodes.
21. A mapping and coagulation apparatus, comprising:
a tissue coagulation probe including a tissue coagulation probe support body defining at least one interior lumen, and an expandable/collapsible tissue coagulation structure supported on the tissue coagulation probe support body; and a mapping probe passable through the tissue coagulation probe support body lumen including a mapping probe support body, and a mapping structure supported on the mapping probe support body.
22. A mapping and coagulation apparatus as claimed in claim 21, wherein the tissue coagulation probe support body comprises a catheter.
23. A mapping and coagulation apparatus as claimed in claim 21, wherein the expandable/collapsible tissue coagulation structure comprises an inflatable structure.
24. A mapping and coagulation apparatus as claimed in claim 23, wherein the inflatable structure defines an interior and the tissue coagulation probe support body includes a fluid lumen operably connected to the interior of the inflatable structure.
25. A mapping and coagulation apparatus as claimed in claim 23, wherein the inflatable structure comprises a non-porous, relatively thermally conductive structure.
26. A mapping and coagulation apparatus as claimed in claim 25, further comprising:
a fluid heating element located within the interior of the inflatable structure.
27. A mapping and coagulation apparatus as claimed in claim 23, wherein the inflatable structure comprises a porous structure.
28. A mapping and coagulation apparatus as claimed in claim 27, wherein the porous structure includes a porous region and a non-porous region.
29. A mapping and coagulation apparatus as claimed in claim 27, further comprising:
an electrode located within the interior of the inflatable structure.
30. A mapping and coagulation apparatus as claimed in claim 21, wherein the expandable/collapsible tissue coagulation structure comprises a hoop structure and at least one operative element supported on the hoop structure.
31. A mapping and coagulation apparatus as claimed in claim 30, wherein the tissue coagulation probe support body defines a longitudinal axis and the hoop structure defines a plane perpendicular to the longitudinal axis.~
32. A mapping and coagulation apparatus as claimed in claim 30, wherein the hoop structure comprises a hoop spline and at least first and second support splines.
33. A mapping and coagulation apparatus as claimed in claim 32, wherein the hoop structure collapses in response to movement of the first and second support splines in opposite directions.
34. A mapping and coagulation apparatus as claimed in claim 33, wherein the tissue coagulation probe support body comprises a first support body member defining an inner lumen and a second support body member movable within the inner lumen of the first support body member and defining the at least one interior lumen, the first support spline is operably connected to the first support body member, and the second support spline is operably connected to the second support body member.
35. A mapping and coagulation apparatus as claimed in claim 30, wherein the hoop structure comprises a hoop spline, a plurality of support splines, and first and second proximally extending stylets.
36. A mapping and coagulation apparatus as claimed in claim 35, wherein the hoop structure collapses in response to movement of the first and second stylets in opposite directions.
37. A mapping and coagulation apparatus as claimed in claim 30, wherein the hoop structure comprises a helical support structure.
38. A mapping and coagulation apparatus as claimed in claim 30, wherein the at least one operative element comprises a plurality of spaced electrodes.
39. A mapping and coagulation apparatus as claimed in claim 21, wherein the mapping structure comprises an expandable/collapsible mapping basket.
40. A mapping and coagulation apparatus as claimed in claim 39, wherein the expandable/collapsible mapping basket comprises at least two splines respectively supporting at least two electrodes.
41. A probe, comprising:
a support body defining a longitudinal axis;
an expandable/collapsible hoop structure defining an open interior region and supported on the support body such that the longitudinal axis of the support body passes through the open interior region; and at least one operative element supported on the expandable/collapsible hoop structure.
42. A probe as claimed in claim 41, wherein the support body comprises a catheter.
43. A probe as claimed in claim 41, wherein the at one operative element comprises a plurality of spaced electrodes.
44. A probe as claimed in claim 41, wherein the hoop structure comprises a hoop spline and at least first and second support splines.
45. A probe as claimed in claim 44, wherein the hoop structure collapses in response to movement of the first and second support splines in opposite directions.
46. A probe as claimed in claim 45, wherein the support body comprises a first support body member defining an inner lumen and a second support body member movable within the inner lumen, the first support spline is operably connected to the first support body member, and the second support spline is operably connected to the second support body member.
47. A probe as claimed in claim 41, wherein the hoop structure comprises a hoop spline, a plurality of support splines, and first and second proximally extending stylets.
48. A probe as claimed in claim 47, wherein the hoop structure collapses in response to movement of the first and second stylets in opposite directions.
49. A probe as claimed in claim 41, wherein the hoop structure comprises a helical support structure.
50. A probe as claimed in claim 41, wherein the hoop structure comprises a hoop spline and at least first and second radially extending support splines.
51. A probe as claimed in claim 41, wherein the hoop structure comprises a hoop spline and at least first and second distally extending support splines that respectively define acute angles with the longitudinal axis of the support body.
52. A probe as claimed in claim 51, wherein the support body includes tubular members extending distally therefrom at the acute angle and the support splines are at least partially located within the tubular members.
53. A probe as claimed in claim 51, wherein the first and second support splines extend distally from the support body to the hoop spline and the hoop structure further includes at least third and fourth support splines extending distally from the hoop spline.
54. A probe as claimed in claim 41, wherein the hoop structure comprises at least two structural members, each structural member consisting of a pair of struts and a curved portion.
55. A probe as claimed in claim 54, wherein the hoop structure comprises four structural members.
56. A probe as claimed in claim 41, wherein the support body defines a distal end and the hoop structure is located proximally of the distal end of the support body.
57. A probe as claimed in claim 41, wherein the support body defines a distal end and the hoop structure extends distally from the distal end of the support body.
CA2394816A 1999-11-22 2000-11-22 Apparatus for mapping and coagulating soft tissue in or around body orifices Expired - Fee Related CA2394816C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/447,182 1999-11-22
US09/447,182 US6529756B1 (en) 1999-11-22 1999-11-22 Apparatus for mapping and coagulating soft tissue in or around body orifices
PCT/EP2000/011640 WO2001037746A1 (en) 1999-11-22 2000-11-22 Apparatus for mapping and coagulating soft tissue in or around body orifices

Publications (2)

Publication Number Publication Date
CA2394816A1 true CA2394816A1 (en) 2001-05-31
CA2394816C CA2394816C (en) 2011-09-13

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CA2394816A Expired - Fee Related CA2394816C (en) 1999-11-22 2000-11-22 Apparatus for mapping and coagulating soft tissue in or around body orifices

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US (4) US6529756B1 (en)
EP (1) EP1233718B1 (en)
JP (1) JP4627948B2 (en)
AT (1) ATE336956T1 (en)
CA (1) CA2394816C (en)
DE (1) DE60030315T2 (en)
ES (1) ES2269214T3 (en)
WO (1) WO2001037746A1 (en)

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