CA2562997A1 - Improved eccentric drive shaft for atherectomy device - Google Patents

Improved eccentric drive shaft for atherectomy device Download PDF

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Publication number
CA2562997A1
CA2562997A1 CA002562997A CA2562997A CA2562997A1 CA 2562997 A1 CA2562997 A1 CA 2562997A1 CA 002562997 A CA002562997 A CA 002562997A CA 2562997 A CA2562997 A CA 2562997A CA 2562997 A1 CA2562997 A1 CA 2562997A1
Authority
CA
Canada
Prior art keywords
drive shaft
enlarged diameter
tissue removal
removal section
section
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
CA002562997A
Other languages
French (fr)
Other versions
CA2562997C (en
Inventor
Leonid Shturman
Andrei Nevzorov
Mikhail Spassky
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.)
Cardiovascular Systems Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2562997A1 publication Critical patent/CA2562997A1/en
Application granted granted Critical
Publication of CA2562997C publication Critical patent/CA2562997C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61B17/32—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
    • 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
    • A61B17/320725—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00526—Methods of manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
    • A61B2017/00553—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated using a turbine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00853—Material properties low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
    • 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
    • A61B2017/22038—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 a guide wire
    • A61B2017/22039—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 a guide wire eccentric
    • 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
    • A61B2017/320004—Surgical cutting instruments abrasive
    • 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
    • A61B2017/320766—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven eccentric

Abstract

This invention is an improved rotational atherectomy drive shaft (20) having an asymmetrical tissue removal section (28). One or more strands of wire are helically wound about an elongated mandrel having an enlarged diameter section (28) with a predetermined shape, thereby forming an elongated, flexible drive shaft (20) which has an enlarged diameter tissue removal section (28). A protion of the drive shaft (20), including the enlarged diameter tissue removal section (28) is placed into a first clamp, and given a first heat treatment to give the wire turns (31) of the enlarged diameter tissue removal section an initial set, thereby preserving the initial shape of the enlarged diameter tissue removal section (28) of the drive shaft (20). The drive shaft (20) is then removed from the first clamp, and the mandrel (50) is dissolved. The enlarged diameter section (28) of the drive shaft (20) is then deformed to an asymmetrical shape by placing a portion of the drive shaft (20), including the enlarged diameter tissue removal section (28) into a second clamp. The clamped portion of the drive shaft (20) is then heat treated for a second time to give wire turns (31) of the enlarged diameter tissue removal section (28) a new set, thereby preserving the asymmetrical shape of the enlarged diameter section (28). In its asymmetrical shape the enlarged diameter tissue removal section (28) has a longitudinally flat'side', i.e., all wire turns of the tissue removal section may be connected by an imaginary straight line which throughout its length is parallel to the rotational axis of the driveshaft.
CA002562997A 1998-03-19 1999-03-17 Improved eccentric drive shaft for atherectomy device Expired - Lifetime CA2562997C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/044,550 1998-03-19
US09/044,550 US6132444A (en) 1997-08-14 1998-03-19 Eccentric drive shaft for atherectomy device and method for manufacture
CA002335537A CA2335537C (en) 1998-03-19 1999-03-17 Improved eccentric drive shaft for atherectomy device and method for manufacture

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002335537A Division CA2335537C (en) 1998-03-19 1999-03-17 Improved eccentric drive shaft for atherectomy device and method for manufacture

Publications (2)

Publication Number Publication Date
CA2562997A1 true CA2562997A1 (en) 1999-09-23
CA2562997C CA2562997C (en) 2008-06-10

Family

ID=21933002

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002335537A Expired - Lifetime CA2335537C (en) 1998-03-19 1999-03-17 Improved eccentric drive shaft for atherectomy device and method for manufacture
CA002562997A Expired - Lifetime CA2562997C (en) 1998-03-19 1999-03-17 Improved eccentric drive shaft for atherectomy device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002335537A Expired - Lifetime CA2335537C (en) 1998-03-19 1999-03-17 Improved eccentric drive shaft for atherectomy device and method for manufacture

Country Status (8)

Country Link
US (2) US6132444A (en)
EP (1) EP1063927B1 (en)
JP (6) JP2002506668A (en)
AT (1) ATE272361T1 (en)
AU (1) AU761065B2 (en)
CA (2) CA2335537C (en)
DE (1) DE69919141T2 (en)
WO (1) WO1999047053A1 (en)

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EP1063927A1 (en) 2001-01-03
JP2013034882A (en) 2013-02-21
ATE272361T1 (en) 2004-08-15
JP2010063909A (en) 2010-03-25
EP1063927A4 (en) 2002-05-08
US6132444A (en) 2000-10-17
DE69919141D1 (en) 2004-09-09
JP2002506668A (en) 2002-03-05
JP2010057978A (en) 2010-03-18
CA2335537A1 (en) 1999-09-23
AU3355099A (en) 1999-10-11
DE69919141T2 (en) 2005-08-04
JP5793751B2 (en) 2015-10-14
JP5793752B2 (en) 2015-10-14
JP4861467B2 (en) 2012-01-25
EP1063927B1 (en) 2004-08-04
US6638288B1 (en) 2003-10-28
JP2013056162A (en) 2013-03-28
AU761065B2 (en) 2003-05-29
CA2562997C (en) 2008-06-10
CA2335537C (en) 2009-05-19
JP4690433B2 (en) 2011-06-01

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