WO1999025412A3 - Guidewire and catheter with rotating and reciprocating symmetrical or asymmetrical distal tip - Google Patents

Guidewire and catheter with rotating and reciprocating symmetrical or asymmetrical distal tip Download PDF

Info

Publication number
WO1999025412A3
WO1999025412A3 PCT/US1998/023536 US9823536W WO9925412A3 WO 1999025412 A3 WO1999025412 A3 WO 1999025412A3 US 9823536 W US9823536 W US 9823536W WO 9925412 A3 WO9925412 A3 WO 9925412A3
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
drive member
tip
guidewire
longitudinal axis
Prior art date
Application number
PCT/US1998/023536
Other languages
French (fr)
Other versions
WO1999025412A2 (en
Inventor
Charles F Milo
Original Assignee
Lumend Inc
Charles F Milo
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 Lumend Inc, Charles F Milo filed Critical Lumend Inc
Priority to EP98956589A priority Critical patent/EP1030705A2/en
Priority to AU13078/99A priority patent/AU1307899A/en
Publication of WO1999025412A2 publication Critical patent/WO1999025412A2/en
Publication of WO1999025412A3 publication Critical patent/WO1999025412A3/en

Links

Classifications

    • 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
    • A61B17/22004—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 using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012—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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • 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
    • A61M25/09—Guide wires
    • A61M25/09041—Mechanisms for insertion of guide wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
    • 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
    • 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
    • A61M25/0116—Steering means as part of the catheter or advancing means; Markers for positioning self-propelled, e.g. autonomous robots

Abstract

A guidewire or a catheter for crossing vascular occlusions comprises a shaft having a proximal end a distal end, and a drive member having a proximal and a distal end, the drive member being rotatably disposed within and along a longitudinal axis of the guidewire shaft. An actuator is connected to the proximal end of the drive member, the actuator imparting a rotation to the drive member. An asymmetrical rotating tip is attached to the distal end of the drive member and driven in rotation about the longitudinal axis of the shaft by the drive member. The rotating tip may include a protruding portion that projects from a plane defined by an outer surface of the guidewire shaft to render the rotating tip asymmetrical with respect to the longitudinal axis of the shaft. The protruding portion creates a volume of revolution as the asymmetrical tip rotates, which facilitates crossing a vascular occlusion by displacing and exerting pressure on stenotic material causing the occlusion. Alternatively, the rotating tip may be symmetrical. A coupling member may be attached to the distal end of the shaft and may include a distal angled surface. When the tip includes a mating angled surface, rotation of the drive member causes the tip to undergo both a reciprocal and a rotational motion along and about the longitudinal axis of the shaft.
PCT/US1998/023536 1997-11-13 1998-11-04 Guidewire and catheter with rotating and reciprocating symmetrical or asymmetrical distal tip WO1999025412A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98956589A EP1030705A2 (en) 1997-11-13 1998-11-04 Guidewire and catheter with rotating and reciprocating symmetrical or asymmetrical distal tip
AU13078/99A AU1307899A (en) 1997-11-13 1998-11-04 Guidewire and catheter with rotating and reciprocating symmetrical or asymmetrical distal tip

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/969,814 1997-11-13
US08/969,814 US6183432B1 (en) 1997-11-13 1997-11-13 Guidewire and catheter with rotating and reciprocating symmetrical or asymmetrical distal tip

Publications (2)

Publication Number Publication Date
WO1999025412A2 WO1999025412A2 (en) 1999-05-27
WO1999025412A3 true WO1999025412A3 (en) 1999-08-19

Family

ID=25516034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/023536 WO1999025412A2 (en) 1997-11-13 1998-11-04 Guidewire and catheter with rotating and reciprocating symmetrical or asymmetrical distal tip

Country Status (4)

Country Link
US (2) US6183432B1 (en)
EP (1) EP1030705A2 (en)
AU (1) AU1307899A (en)
WO (1) WO1999025412A2 (en)

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US9265520B2 (en) 2002-08-02 2016-02-23 Flowcardia, Inc. Therapeutic ultrasound system
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US9402646B2 (en) 2009-06-12 2016-08-02 Flowcardia, Inc. Device and method for vascular re-entry
US9433433B2 (en) 2003-09-19 2016-09-06 Flowcardia, Inc. Connector for securing ultrasound catheter to transducer

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AU1307899A (en) 1999-06-07

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