CA2059900A1 - Minimally invasive medical device for providing a radiation treatment - Google Patents

Minimally invasive medical device for providing a radiation treatment

Info

Publication number
CA2059900A1
CA2059900A1 CA002059900A CA2059900A CA2059900A1 CA 2059900 A1 CA2059900 A1 CA 2059900A1 CA 002059900 A CA002059900 A CA 002059900A CA 2059900 A CA2059900 A CA 2059900A CA 2059900 A1 CA2059900 A1 CA 2059900A1
Authority
CA
Canada
Prior art keywords
wire
distal end
vessel
distal portion
mandril
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
CA002059900A
Other languages
French (fr)
Other versions
CA2059900C (en
Inventor
Neal E. Fearnot
Gareth S. S. Roubin
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 Research Inc
Original Assignee
Neal E. Fearnot
Gareth S. S. Roubin
Med Institute, 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 Neal E. Fearnot, Gareth S. S. Roubin, Med Institute, Inc. filed Critical Neal E. Fearnot
Publication of CA2059900A1 publication Critical patent/CA2059900A1/en
Priority claimed from EP95308296A external-priority patent/EP0775505B1/en
Application granted granted Critical
Publication of CA2059900C publication Critical patent/CA2059900C/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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22065—Functions of balloons
    • A61B2017/22068—Centering
    • 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
    • A61M2025/1047—Balloon catheters with special features or adapted for special applications having centering means, e.g. balloons having an appropriate shape
    • 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
    • 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
    • A61N2005/1004—Intraluminal radiation therapy having expandable radiation sources
    • 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
    • A61N2005/1019—Sources therefor
    • A61N2005/1021—Radioactive fluid
    • 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
    • A61N2005/1019—Sources therefor
    • A61N2005/1025—Wires

Abstract

A minimally invasive intravascular medical device for providing a radiation treatment in a body passageway such as a coronary vessel of the vascular system. The device includes a flexible elongated member having distal and proximal portions. The distal portion is percutaneously insertable into a vessel and includes a distal end that is directable through the vessel to the treatment site. A
radiation source is attached about the distal portion for delivering a radiation treatment to the walls a vessel having a stent positioned thereagainst. The distal portion of the elongated member includes a wire coil positioned about the tapered distal end of a mandril wire. The combination of the wire coil and the tapered distal end of the mandril wire provides variable flexibility to the distal portion of the device. The distal portion also has a predetermined curvature for directing the distal end of the device through the vessel. A safety wire is also extendable through the passageway of the wire coil to provide further flexibility to the distal portion. The radiation source is fixedly positioned about either the tapered distal end of the mandril wire or the safety wire in the passageway of the wire coil. An annular recess is included about the tapered distal end of the mandril wire to fixedly position a source of radioactive material therein.
CA002059900A 1991-01-29 1992-01-23 Minimally invasive medical device for providing a radiation treatment Expired - Fee Related CA2059900C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/647,280 US5354257A (en) 1991-01-29 1991-01-29 Minimally invasive medical device for providing a radiation treatment
US647,280 1991-01-29
EP95308296A EP0775505B1 (en) 1991-01-29 1995-11-21 A minimally invasive medical device for providing a radiation treatment

Publications (2)

Publication Number Publication Date
CA2059900A1 true CA2059900A1 (en) 1992-07-30
CA2059900C CA2059900C (en) 2003-10-21

Family

ID=37023055

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002059900A Expired - Fee Related CA2059900C (en) 1991-01-29 1992-01-23 Minimally invasive medical device for providing a radiation treatment

Country Status (5)

Country Link
US (1) US5354257A (en)
EP (1) EP0497495B1 (en)
JP (1) JPH04309368A (en)
CA (1) CA2059900C (en)
DE (1) DE69218013T2 (en)

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DE69218013D1 (en) 1997-04-17
DE69218013T2 (en) 1997-06-19
EP0497495B1 (en) 1997-03-12
JPH04309368A (en) 1992-10-30
CA2059900C (en) 2003-10-21
EP0497495A3 (en) 1993-04-07
US5354257A (en) 1994-10-11
EP0497495A2 (en) 1992-08-05

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