CA2232918A1 - Catheter centering device - Google Patents

Catheter centering device

Info

Publication number
CA2232918A1
CA2232918A1 CA002232918A CA2232918A CA2232918A1 CA 2232918 A1 CA2232918 A1 CA 2232918A1 CA 002232918 A CA002232918 A CA 002232918A CA 2232918 A CA2232918 A CA 2232918A CA 2232918 A1 CA2232918 A1 CA 2232918A1
Authority
CA
Canada
Prior art keywords
catheter
regions
vessel
support structure
unconstricted
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
CA002232918A
Other languages
French (fr)
Other versions
CA2232918C (en
Inventor
Claude Olivier Clerc
Jonathan Swift Stinson
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.)
Schneider USA Inc
Original Assignee
Schneider USA 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
Application filed by Schneider USA Inc filed Critical Schneider USA Inc
Publication of CA2232918A1 publication Critical patent/CA2232918A1/en
Application granted granted Critical
Publication of CA2232918C publication Critical patent/CA2232918C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002—Intraluminal radiation therapy
    • 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
    • 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
    • A61M25/1011—Multiple balloon catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002—Intraluminal radiation therapy
    • A61N2005/1003—Intraluminal radiation therapy having means for centering a radioactive source within the lumen, e.g. balloons

Abstract

A medical device (10) for treating a body vessel (42) with a radioactive source (16) includes an elongated tubular catheter (14) and an axially flexible support structure (12) on a distal end of the catheter (14). The catheter (14) has proximal and distal ends, and a lumen (18) for receiving a radioactive source (16). The support structure (12) is formed from a plurality of filaments (22) which are helically wound and interwoven in a braided configuration and has a plurality of alternately spaced unconstricted (32) and constricted (30) regions. The unconstricted regions (32) are radially compressible and self-expandable from a positioning diameter when the device (10) is in a positioning state to a vessel-engaging, treatment diameter which is greater than the positioning diameter when the device(10) is in the treatment state. The constricted regions (30) are engaged with the catheter (14) and concentric with the unconstricted regions (32). When in the treatment state the support structure (12) causes the catheter (14) to be substantially radially centered within a vessel (42) so radiation is uniformly applied to the vessel (42) during treatment.
CA002232918A 1997-03-21 1998-03-19 Catheter centering device Expired - Fee Related CA2232918C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4134297P 1997-03-21 1997-03-21
US60/041,342 1997-03-21
US09/035,954 US6059812A (en) 1997-03-21 1998-03-06 Self-expanding medical device for centering radioactive treatment sources in body vessels

Publications (2)

Publication Number Publication Date
CA2232918A1 true CA2232918A1 (en) 1998-09-21
CA2232918C CA2232918C (en) 2002-12-03

Family

ID=26712646

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002232918A Expired - Fee Related CA2232918C (en) 1997-03-21 1998-03-19 Catheter centering device

Country Status (5)

Country Link
US (2) US6059812A (en)
EP (1) EP0865803B1 (en)
JP (1) JPH10263096A (en)
CA (1) CA2232918C (en)
DE (1) DE69823725T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113577576A (en) * 2021-09-02 2021-11-02 北京翌光医疗科技研究院有限公司 Optical medical device

Families Citing this family (187)

* Cited by examiner, † Cited by third party
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US6267775B1 (en) 2001-07-31
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