WO2005089433A3 - Expandable medical access device - Google Patents

Expandable medical access device Download PDF

Info

Publication number
WO2005089433A3
WO2005089433A3 PCT/US2005/008923 US2005008923W WO2005089433A3 WO 2005089433 A3 WO2005089433 A3 WO 2005089433A3 US 2005008923 W US2005008923 W US 2005008923W WO 2005089433 A3 WO2005089433 A3 WO 2005089433A3
Authority
WO
WIPO (PCT)
Prior art keywords
sheath
control member
plastic
metal
diameter
Prior art date
Application number
PCT/US2005/008923
Other languages
French (fr)
Other versions
WO2005089433A2 (en
Inventor
George F Kick
Jay Lenker
Onnik Tchulluian
Original Assignee
Onset Medical 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 Onset Medical Inc filed Critical Onset Medical Inc
Publication of WO2005089433A2 publication Critical patent/WO2005089433A2/en
Publication of WO2005089433A3 publication Critical patent/WO2005089433A3/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • A61B17/3439Cannulas with means for changing the inner diameter of the cannula, e.g. expandable
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0218Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery

Abstract

An access device comprises a thin-walled sheath that is insertable into a patient through a small surgically created incision. The incision may be created using a cutdown or a percutaneous method such as that known as the Seldinger technique. Once inserted and advanced to the target surgical site, the sheath is selectively, and controllably, expanded to a desired diameter. The thin wall of the sheath is fabricated from a rectangular piece of material such as metal or plastic with two cut edges. The rectangular piece of metal or plastic is rolled tightly to create the small diameter configuration that is inserted into the patient. A cam or control member is affixed to the innermost edge of the rectangular piece of metal or plastic. The control member extends to the proximal most portion of the sheath. By rotating the control member, the operator causes the thin wall piece of rolled material to unfurl into a larger or smaller diameter, depending on the direction of rotation. A mechanical lock at the distal end of the sheath permits the control member to be selectively constrained from rotation and thus lock the sheath diameter in place.
PCT/US2005/008923 2004-03-18 2005-03-17 Expandable medical access device WO2005089433A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US55433804P 2004-03-18 2004-03-18
US60/554,338 2004-03-18
US10/841,799 US7699864B2 (en) 2004-03-18 2004-05-07 Expandable medical access device
US10/841,799 2004-05-07

Publications (2)

Publication Number Publication Date
WO2005089433A2 WO2005089433A2 (en) 2005-09-29
WO2005089433A3 true WO2005089433A3 (en) 2009-04-02

Family

ID=34994345

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/008923 WO2005089433A2 (en) 2004-03-18 2005-03-17 Expandable medical access device

Country Status (2)

Country Link
US (1) US7699864B2 (en)
WO (1) WO2005089433A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105561444A (en) * 2015-12-18 2016-05-11 青岛市市立医院 Novel cardiovascular intervention therapeutic apparatus
CN108523969A (en) * 2018-02-28 2018-09-14 张涛 A kind of novel cardiovascular intervention device

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