+

WO1999011318A1 - Procede et appareil de mise en place intraparenchymateuse de dispositifs medicaux - Google Patents

Procede et appareil de mise en place intraparenchymateuse de dispositifs medicaux Download PDF

Info

Publication number
WO1999011318A1
WO1999011318A1 PCT/US1998/003204 US9803204W WO9911318A1 WO 1999011318 A1 WO1999011318 A1 WO 1999011318A1 US 9803204 W US9803204 W US 9803204W WO 9911318 A1 WO9911318 A1 WO 9911318A1
Authority
WO
WIPO (PCT)
Prior art keywords
catheter
distal end
magnet
lumen
tether
Prior art date
Application number
PCT/US1998/003204
Other languages
English (en)
Inventor
Peter R. Werp
Rogers C. Ritter
Walter M. Blume
Original Assignee
Stereotaxis, Inc.
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
Priority claimed from US08/920,446 external-priority patent/US6015414A/en
Application filed by Stereotaxis, Inc. filed Critical Stereotaxis, Inc.
Priority to JP2000508416A priority Critical patent/JP2001514055A/ja
Priority to AU61754/98A priority patent/AU6175498A/en
Priority to EP98906564A priority patent/EP1005384A4/fr
Publication of WO1999011318A1 publication Critical patent/WO1999011318A1/fr

Links

Classifications

    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0127—Magnetic means; Magnetic markers

Definitions

  • This invention relates to a method of, and apparatus for positioning a medical device in the body through the tissue (intraparenchymally) .
  • the method and apparatus of the present invention involve magnetically guiding a medical device on an intraparenchymal path through the body.
  • a magnet is provided in the lumen of a catheter, adjacent the distal end with a tether extending from the magnet, through the lumen of the catheter to the proximal end.
  • the distal end of the catheter has a restriction to retain the magnet in the lumen.
  • the distal end of the catheter can be guided intraparenchymally to its desired position by the controlled application of a magnetic field, which acts on the magnet inside the lumen. Once the distal end of the catheter is in its desired position, the magnet can be quickly and easily withdrawn through the lumen of the catheter with the tether, eliminating the need to detach and manipulate the magnet out of the body encountered with some prior art methods.
  • the tether can be sufficiently stiff to function as a guide wire to help advance the catheter through the tissue.
  • the magnetic field need only be sufficiently strong to freely orient the magnet inside the distal tip of the catheter, and the motive force for advancing the catheter through the tissue is provided by tether or guide wire.
  • the distal end of the tether/guide wire is preferably relatively flexible to allow the magnet to freely orient the distal end of the catheter under the influence of an applied magnetic field.
  • the proximal end of the tether/guide wire is preferably relatively stiff so that it can urge the distal end of the catheter through the tissue.
  • the method and the catheter/guide wire or catheter/tether of the present invention facilitate quick, easy and accurate intraparenchymal positioning of a catheter in the body. Once the catheter is properly positioned it can be used during a diagnostic or therapeutic procedure, either directly or as a passage for other medical devices.
  • Fig. 1 is a longitudinal cross-sectional view of a first embodiment of a catheter and magnet combination constructed according to the principles of this invention
  • Fig. 1A is a longitudinal cross-sectional view of the first embodiment with the magnet partially withdrawn from the distal end of the catheter;
  • Fig. 2 is a longitudinal cross-sectional view of an alternate construction of the first embodiment of a catheter and magnet combination
  • Fig. 3 is a longitudinal cross-sectional view of a second embodiment of a catheter and magnet combination constructed according to the principles of this invention
  • Fig. 4 is a top plan view of the magnet and attached tether/guide wire of the second embodiment
  • Fig. 5 is a top plan view of guide wire core of the tether/guide wire shown in Fig. 4 ;
  • Fig. 6 is a vertical longitudinal partial cross- sectional view of the distal end of the tether/guide wire taken along the plane of line 6-6 in Fig. 4;
  • the catheter 22 or 102 can be used to perform a medical procedure or it can be used as a guide to insert medical devices to the area surrounding the distal end of the catheter to perform a medical procedure.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

L'invention concerne une combinaison d'un cathéter et d'un aimant (20) adaptée pour mettre en place de manière intraparenchymateuse le cathéter (22) dans le corps à l'aide d'un champ magnétique. Le cathéter (22) présente des extrémités proximale et distale ((26,28), respectivement) et une lumière (30) entre les deux extrémités. Un aimant (24) est disposé à l'extrémité distale de la lumière (30) de manière que l'extrémité distale du cathéter (22) puisse être placée à l'intérieur du corps à l'aide d'un champ magnétique appliqué extérieurement. Une tige d'attache (32) est fixée à l'aimant (24), elle se prolonge à travers la lumière (30) et au-delà de l'extrémité proximale (26) de manière que l'aimant (24) puisse être retiré du cathéter (22) à travers la lumière (30), une fois que l'extrémité distale du cathéter (22) est correctement mise en place. Selon un mode de réalisation de l'invention, la tige d'attache (32) est suffisamment rigide pour pouvoir pousser le cathéter (22) à travers le tissu. Selon ce mode de réalisation, le champ magnétique oriente l'aimant (24) et par conséquent le bout (36) du cathéter (22), et une partie ou toute la force destinée à déplacer le cathéter (22) est appliquée via la tige d'attache (32).
PCT/US1998/003204 1997-08-29 1998-02-17 Procede et appareil de mise en place intraparenchymateuse de dispositifs medicaux WO1999011318A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000508416A JP2001514055A (ja) 1997-08-29 1998-02-17 医療器具の実質内的な配置方法及び装置
AU61754/98A AU6175498A (en) 1997-08-29 1998-02-17 Method of and apparatus for intraparenchymal positioning of medical devices
EP98906564A EP1005384A4 (fr) 1997-08-29 1998-02-17 Procede et appareil de mise en place intraparenchymateuse de dispositifs medicaux

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/920,446 1997-08-29
US08/920,446 US6015414A (en) 1997-08-29 1997-08-29 Method and apparatus for magnetically controlling motion direction of a mechanically pushed catheter
US08/969,165 US5931818A (en) 1997-08-29 1997-11-12 Method of and apparatus for intraparenchymal positioning of medical devices
US08/969,165 1997-11-12

Publications (1)

Publication Number Publication Date
WO1999011318A1 true WO1999011318A1 (fr) 1999-03-11

Family

ID=27129799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/003204 WO1999011318A1 (fr) 1997-08-29 1998-02-17 Procede et appareil de mise en place intraparenchymateuse de dispositifs medicaux

Country Status (4)

Country Link
EP (1) EP1005384A4 (fr)
JP (1) JP2001514055A (fr)
AU (1) AU6175498A (fr)
WO (1) WO1999011318A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244362A (en) * 1978-11-29 1981-01-13 Anderson Charles C Endotracheal tube control device
US5125888A (en) 1990-01-10 1992-06-30 University Of Virginia Alumni Patents Foundation Magnetic stereotactic system for treatment delivery
US5425382A (en) * 1993-09-14 1995-06-20 University Of Washington Apparatus and method for locating a medical tube in the body of a patient
US5624430A (en) * 1994-11-28 1997-04-29 Eton; Darwin Magnetic device to assist transcorporeal guidewire placement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244362A (en) * 1978-11-29 1981-01-13 Anderson Charles C Endotracheal tube control device
US5125888A (en) 1990-01-10 1992-06-30 University Of Virginia Alumni Patents Foundation Magnetic stereotactic system for treatment delivery
US5425382A (en) * 1993-09-14 1995-06-20 University Of Washington Apparatus and method for locating a medical tube in the body of a patient
US5622169A (en) * 1993-09-14 1997-04-22 University Of Washington Apparatus and method for locating a medical tube in the body of a patient
US5624430A (en) * 1994-11-28 1997-04-29 Eton; Darwin Magnetic device to assist transcorporeal guidewire placement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1005384A4 *

Also Published As

Publication number Publication date
EP1005384A4 (fr) 2001-06-20
EP1005384A1 (fr) 2000-06-07
AU6175498A (en) 1999-03-22
JP2001514055A (ja) 2001-09-11

Similar Documents

Publication Publication Date Title
US5931818A (en) Method of and apparatus for intraparenchymal positioning of medical devices
US7066924B1 (en) Method of and apparatus for navigating medical devices in body lumens by a guide wire with a magnetic tip
US6379319B1 (en) Systems and methods for directing and snaring guidewires
US7771437B2 (en) Guide for medical devices
US6817364B2 (en) Magnetically navigated pacing leads, and methods for delivering medical devices
JP3483595B2 (ja) ガイドワイヤの長手方向の運動を制御する装置
JP3054112B2 (ja) 血管閉塞部材用のボールロック接合部および導入具
EP0246836B1 (fr) Ancrage viscéral
US5527292A (en) Intravascular device for coronary heart treatment
US5269793A (en) Guide wire systems for intravascular catheters
EP2043725B1 (fr) Système de cathéter de remplacement de fil-guide
DE69534089T2 (de) Gerät zur Einführung eines Implantates mit ausdehnbaren Kupplungs- und Entkupplungsmechanismus
US6254610B1 (en) Device and method for dragging and positioning a member within a duct in a body
US20060144407A1 (en) Magnetic navigation manipulation apparatus
US20080006280A1 (en) Magnetic navigation maneuvering sheath
EP0132387A2 (fr) Guide élastique pour cathéter avec mandrin mobile
EP0483270A4 (en) Improved guide wire systems for intravascular catheters
DE4323972A1 (de) Kathetervorrichtung, sowie Verfahren und Vorrichtung zum Erleichtern des Austausches eines hieran angeordneten Ballonkatheters
WO2000015287A2 (fr) Verrou monobloc pour gaine divisible
WO1999040957A1 (fr) Procede et appareil permettant de diriger des dispositifs medicaux dans des lumieres organiques
US20050085746A1 (en) Retractable sheath introducer
US5630427A (en) Medical shaft movement control device and method
GB2447163A (en) A bladder drainage kit
JPH0788193A (ja) 軸の移動を制御する装置
JPWO2003092782A1 (ja) 留置チューブガイド装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1998906564

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: KR

WWP Wipo information: published in national office

Ref document number: 1998906564

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1998906564

Country of ref document: EP

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载