WO1996025969A3 - High performance wires for use in medical devices and alloys therefor - Google Patents

High performance wires for use in medical devices and alloys therefor Download PDF

Info

Publication number
WO1996025969A3
WO1996025969A3 PCT/US1996/002390 US9602390W WO9625969A3 WO 1996025969 A3 WO1996025969 A3 WO 1996025969A3 US 9602390 W US9602390 W US 9602390W WO 9625969 A3 WO9625969 A3 WO 9625969A3
Authority
WO
WIPO (PCT)
Prior art keywords
guidewire
alloy
shaft
molybdenum
high performance
Prior art date
Application number
PCT/US1996/002390
Other languages
French (fr)
Other versions
WO1996025969A2 (en
Inventor
John R Fagan
Lex P Jansen
L Ven Raman
John A Wright Jr
Original Assignee
Bard Inc C R
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 Bard Inc C R filed Critical Bard Inc C R
Priority to DE69632156T priority Critical patent/DE69632156T2/en
Priority to JP8525809A priority patent/JPH11502434A/en
Priority to EP96906579A priority patent/EP0957968B1/en
Publication of WO1996025969A2 publication Critical patent/WO1996025969A2/en
Publication of WO1996025969A3 publication Critical patent/WO1996025969A3/en

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
    • A61M25/09—Guide wires
    • 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
    • A61M2025/09175—Guide wires having specific characteristics at the distal tip

Abstract

An elongate flexible wire-like medical device, such as a guidewire for use with a catheter, is formed with a shaft in which the difference between the magnitude of the tensile yield stress and compressive yield stress of the shaft is substantially reduced. The guidewire exhibits superior kink resistance without compromising other desirable characteristics and enables a guidewire to be made in a smaller diameter without loss of performance. The guidewire shaft may be formed from a precipitation hardenable alloy such as an alloy of nickel, cobalt, molybdenum and chromium (MP35N and Elgiloy), 455PH stainless steel or stainless steel alloy 1RK91. Also disclosed is a process for increasing the modulus of elasticity of an alloy of nickel, cobalt, molybdenum and chronium. Further, the disclosure relates to an improved management and manufacturing process for constructing the tip of a medical guidewire.
PCT/US1996/002390 1995-02-12 1996-02-21 High performance wires for use in medical devices and alloys therefor WO1996025969A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69632156T DE69632156T2 (en) 1995-02-21 1996-02-21 HIGHER PERFORMANCE WIRES TO USE THAN CATHETER GUIDE WIRE AND METHOD FOR THE PRODUCTION THEREOF
JP8525809A JPH11502434A (en) 1995-02-12 1996-02-21 Highly functional wire used for medical instruments and alloy for the wire
EP96906579A EP0957968B1 (en) 1995-02-21 1996-02-21 High performance wires for use as catheter guidewires and method of making them

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/391,010 1995-02-21
US08/391,010 US5720300A (en) 1993-11-10 1995-02-21 High performance wires for use in medical devices and alloys therefor

Publications (2)

Publication Number Publication Date
WO1996025969A2 WO1996025969A2 (en) 1996-08-29
WO1996025969A3 true WO1996025969A3 (en) 1997-02-06

Family

ID=23544851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/002390 WO1996025969A2 (en) 1995-02-12 1996-02-21 High performance wires for use in medical devices and alloys therefor

Country Status (5)

Country Link
US (1) US5720300A (en)
EP (1) EP0957968B1 (en)
JP (1) JPH11502434A (en)
DE (1) DE69632156T2 (en)
WO (1) WO1996025969A2 (en)

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US5720300A (en) 1998-02-24
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EP0957968B1 (en) 2004-04-07
WO1996025969A2 (en) 1996-08-29
DE69632156T2 (en) 2004-09-16
DE69632156D1 (en) 2004-05-13

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