CA2611477A1 - Cautery catheter - Google Patents

Cautery catheter Download PDF

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Publication number
CA2611477A1
CA2611477A1 CA002611477A CA2611477A CA2611477A1 CA 2611477 A1 CA2611477 A1 CA 2611477A1 CA 002611477 A CA002611477 A CA 002611477A CA 2611477 A CA2611477 A CA 2611477A CA 2611477 A1 CA2611477 A1 CA 2611477A1
Authority
CA
Canada
Prior art keywords
mesh
catheter
medical instrument
stem
filaments
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
CA002611477A
Other languages
French (fr)
Other versions
CA2611477C (en
Inventor
Kenneth C. Kennedy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cook Medical Technologies LLC
Original Assignee
Wilson-Cook Medical, Inc.
Kenneth C. Kennedy
Cook Medical Technologies Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wilson-Cook Medical, Inc., Kenneth C. Kennedy, Cook Medical Technologies Llc filed Critical Wilson-Cook Medical, Inc.
Publication of CA2611477A1 publication Critical patent/CA2611477A1/en
Application granted granted Critical
Publication of CA2611477C publication Critical patent/CA2611477C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00482—Digestive system

Abstract

A cautery catheter is described having an expandable and electrically conductive mesh that can cauterize treatment sites having large effective surface areas. The mesh is composed of interwoven filaments which are aligned with the cautery catheter in an unexpanded state. Reorientation of the filaments of the mesh enables expansion of the mesh. When the expanded mesh contacts the desired treatment area, an electrocautery unit supplies electrical energy to the filaments of expanded mesh to cauterize the treatment site.

Claims (20)

1. A medical instrument, comprising:

a catheter having a proximal portion and a distal portion;

an electrically conductive mesh disposed on the distal portion of the catheter; and a connector disposed on the proximal portion of the catheter, the connector being conductively connected to the mesh, the connector being configured for a connection to a power source for supplying a current sufficient to electrify the mesh.
2. The medical instrument of claim 1, further comprising:

an electrically conductive wire extending from the proximal portion to the mesh; and a control handle operably connected to the proximal portion of the catheter.
3. The medical instrument of one of claims 1 and 2, wherein the electrically conductive wire comprises a control wire configured for manipulation of the mesh.
4. The medical instrument of any preceding claim, wherein the mesh is configured to move between a first position and a second position, wherein in the first position the mesh is substantially adjacent to the catheter, and wherein in the second position a portion of the mesh is spaced away from the catheter.
5. The medical instrument of claim 4, further comprising an apparatus for moving the mesh between the first position and the second position.
6. The medical instrument of claim 5, wherein the apparatus for moving the mesh comprises a control wire operably connected to a handle.
7. The medical instrument of any preceding claim, wherein the mesh is configured to move between a first position and a second position, wherein in the first position the mesh is substantially spaced a first distance from a central axis of the catheter, and wherein in the second position at least a portion of the mesh is spaced a second distance from the central axis of the catheter, the second distance being greater than the first distance.
8. The medical instrument of any preceding claim, wherein the mesh comprises a plurality of interwoven electrically conductive filaments.
9. The medical instrument of claim 8, wherein a control handle comprises a stem and a spool slidably attached to the stem, wherein one of the stem and the spool is operably connected to the mesh such that sliding the stem relative to the spool causes an angle between the filaments to change.
10. The medical instrument of claim 8, wherein the filaments are formed from stainless steel.
11. The medical instrument of claim 8, wherein the filaments are formed from nitinol.
12. The medical instrument of claim 1, further comprising a balloon operably connected to the catheter, the balloon being disposed between the catheter and the mesh.
13. The medical instrument of claim 12, wherein the balloon is expandable from a first contracted position to a second expanded position, wherein in the first position the mesh is substantially adjacent to the catheter, and wherein in the second position a portion of the mesh is spaced away from the catheter.
14. The medical instrument of claim 13, wherein in the second position, the portion of the mesh spaced away from the catheter is engaged by a portion of the balloon.
15. The medical instrument of claim 12, wherein the mesh is formed from nitinol.
16. The medical instrument of claim 12, wherein the mesh is formed from stainless steel.
17. A medical instrument, comprising:

a catheter having a proximal portion and a distal portion;

an electrically conductive mesh disposed on the distal portion of the catheter, the mesh being deformable from a collapsed configuration substantially disposed along a surface of the catheter to an expanded configuration, wherein a portion of the mesh is spaced away from the surface of the catheter in the expanded configuration; and a connector disposed on the proximal portion of the catheter, the connector being conductively connected to the mesh by a control wire, the control wire disposed through a lumen of the catheter, the connector being configured for a connection to a power source for supplying a current sufficient to electrify the mesh.
18. The medical instrument of claim 17, wherein the mesh comprises a plurality of interwoven electrically conductive filaments.
19. The medical instrument of claim 18, wherein a control handle comprises a stem and a spool slidably attached to the stem, wherein one of the stem and the spool is operably connected to the mesh such that sliding the stem relative to the spool causes an angle between the filaments to change.
20. The medical instrument of one of claims 17 and 18, further comprising a balloon operably connected to the catheter, the balloon being disposed between the catheter and the mesh, wherein the balloon is expandable from a first contracted position to a second expanded position, wherein in the first position the mesh is substantially adjacent to the catheter, and wherein in the second position a portion of the mesh is spaced away from the catheter.
CA2611477A 2005-06-10 2006-06-08 Cautery catheter Expired - Fee Related CA2611477C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US68967205P 2005-06-10 2005-06-10
US60/689,672 2005-06-10
PCT/US2006/022331 WO2006135690A1 (en) 2005-06-10 2006-06-08 Cautery catheter

Publications (2)

Publication Number Publication Date
CA2611477A1 true CA2611477A1 (en) 2006-12-21
CA2611477C CA2611477C (en) 2012-01-17

Family

ID=37038295

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2611477A Expired - Fee Related CA2611477C (en) 2005-06-10 2006-06-08 Cautery catheter

Country Status (6)

Country Link
US (1) US7967818B2 (en)
EP (1) EP1887958B1 (en)
JP (1) JP2008545508A (en)
AU (1) AU2006258010B2 (en)
CA (1) CA2611477C (en)
WO (1) WO2006135690A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1814483B1 (en) * 2004-11-24 2017-07-26 Cook Medical Technologies LLC Sphincterotome improvement
US8535310B2 (en) * 2007-08-08 2013-09-17 Cook Medical Technologies Llc Sphincterotome
US8282628B2 (en) * 2009-10-26 2012-10-09 Globus Medical, Inc. Vertebral body nerve and vein cauterizing system and method
US8864762B2 (en) 2011-05-13 2014-10-21 Sanovas, Inc. Balloon catheter mesh
US10260181B2 (en) * 2013-01-14 2019-04-16 Lake Region Medical, Inc. Directional mesh and associated systems
WO2014165130A2 (en) * 2013-03-13 2014-10-09 Boston Scientific Scimed, Inc. Devices for tissue separation and related methods of use
US9901393B2 (en) 2015-11-09 2018-02-27 First Pass, Llc Cautery device

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Also Published As

Publication number Publication date
US20070118112A1 (en) 2007-05-24
CA2611477C (en) 2012-01-17
AU2006258010A1 (en) 2006-12-21
JP2008545508A (en) 2008-12-18
AU2006258010B2 (en) 2012-09-13
US7967818B2 (en) 2011-06-28
EP1887958A1 (en) 2008-02-20
EP1887958B1 (en) 2019-05-01
WO2006135690A1 (en) 2006-12-21

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