WO2008047380A3 - An improved catheter for heating of body cavities - Google Patents

An improved catheter for heating of body cavities Download PDF

Info

Publication number
WO2008047380A3
WO2008047380A3 PCT/IN2007/000123 IN2007000123W WO2008047380A3 WO 2008047380 A3 WO2008047380 A3 WO 2008047380A3 IN 2007000123 W IN2007000123 W IN 2007000123W WO 2008047380 A3 WO2008047380 A3 WO 2008047380A3
Authority
WO
WIPO (PCT)
Prior art keywords
catheter
heating
parts
insulation
air gap
Prior art date
Application number
PCT/IN2007/000123
Other languages
French (fr)
Other versions
WO2008047380A2 (en
WO2008047380A8 (en
Inventor
Prabhakar Vartak Taraprakash
Original Assignee
Prabhakar Vartak Taraprakash
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 Prabhakar Vartak Taraprakash filed Critical Prabhakar Vartak Taraprakash
Publication of WO2008047380A2 publication Critical patent/WO2008047380A2/en
Publication of WO2008047380A3 publication Critical patent/WO2008047380A3/en
Publication of WO2008047380A8 publication Critical patent/WO2008047380A8/en

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
    • 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
    • A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Otolaryngology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

An improved circulating fluid type catheter for heating a body cavities is described. Such catheters in prior art incorporate side-by-side inlet and outlet passages for fluid circulation. In the catheter of this invention the passages are made concentric to each other while keeping cross-sectional areas, the same, thus reducing the effective outer diameter of catheter. This makes the catheter thinner and thus easier to insert in the body. Secondly, as the circulating hot fluid heats all parts of catheter, even non-targeted parts of body receive the undesired heating. To avoid this, a third concentrial tube is fitted coaxially over the inlet and outlet tubes. The air gap formed by the third tube serves as insulation between hot fluid and other body parts. To further improve the insulation a simple evacuating arrangement is described. As an alternative embodiment this air gap can be sealed and permanently evacuated like a vacuum flask.
PCT/IN2007/000123 2005-09-23 2007-03-26 An improved catheter for heating of body cavities WO2008047380A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IN1197/MUM/2005 2006-03-26
IN1197/MUM/2006 2006-03-26
IN1197MU2005 IN206553B (en) 2005-09-23 2007-03-26

Publications (3)

Publication Number Publication Date
WO2008047380A2 WO2008047380A2 (en) 2008-04-24
WO2008047380A3 true WO2008047380A3 (en) 2008-07-03
WO2008047380A8 WO2008047380A8 (en) 2010-12-09

Family

ID=39314463

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2007/000123 WO2008047380A2 (en) 2005-09-23 2007-03-26 An improved catheter for heating of body cavities

Country Status (2)

Country Link
IN (1) IN206553B (en)
WO (1) WO2008047380A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000054684A1 (en) * 1999-03-15 2000-09-21 Cryovascular Systems, Inc. Cryosurgical fluid supply
US20020091378A1 (en) * 1998-03-31 2002-07-11 Dobak John D. Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation
US20030060762A1 (en) * 2001-09-27 2003-03-27 Galil Medical Ltd. Cryoplasty apparatus and method
US20030199861A1 (en) * 2002-04-19 2003-10-23 Scimed Life Systems, Inc Cryo balloon

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020091378A1 (en) * 1998-03-31 2002-07-11 Dobak John D. Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation
WO2000054684A1 (en) * 1999-03-15 2000-09-21 Cryovascular Systems, Inc. Cryosurgical fluid supply
US20030060762A1 (en) * 2001-09-27 2003-03-27 Galil Medical Ltd. Cryoplasty apparatus and method
US20030199861A1 (en) * 2002-04-19 2003-10-23 Scimed Life Systems, Inc Cryo balloon

Also Published As

Publication number Publication date
IN206553B (en) 2008-07-25
WO2008047380A2 (en) 2008-04-24
WO2008047380A8 (en) 2010-12-09

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