CA2323623A1 - Minimally-invasive medical retrieval device - Google Patents

Minimally-invasive medical retrieval device Download PDF

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Publication number
CA2323623A1
CA2323623A1 CA002323623A CA2323623A CA2323623A1 CA 2323623 A1 CA2323623 A1 CA 2323623A1 CA 002323623 A CA002323623 A CA 002323623A CA 2323623 A CA2323623 A CA 2323623A CA 2323623 A1 CA2323623 A1 CA 2323623A1
Authority
CA
Canada
Prior art keywords
cylindrical member
elongated cylindrical
grasping members
retrieval
resilient grasping
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
CA002323623A
Other languages
French (fr)
Other versions
CA2323623C (en
Inventor
Thomas L. Foster
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 Urological Inc
Original Assignee
Cook Urological Inc.
Thomas L. Foster
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 Cook Urological Inc., Thomas L. Foster filed Critical Cook Urological Inc.
Publication of CA2323623A1 publication Critical patent/CA2323623A1/en
Application granted granted Critical
Publication of CA2323623C publication Critical patent/CA2323623C/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
    • A61B17/22—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
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • 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
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
    • 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
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A61B2017/2215—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having an open distal end

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Laser Surgery Devices (AREA)
  • External Artificial Organs (AREA)
  • Prostheses (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A medical retrieval device is disclosed comprising an elongated cylindrical member that includes a continuum of a material, preferably a metal such as stainless steel or nitinol, that forms both the resilient grasping members of retrieval basket, snare, or grasper forceps, and the proximal portion or shaft of the device. The elongated cylindrical member can include a metal cannula or solid rod into which a series of laterally adjacent longitudinal slots are cut or formed in the distal portion of the elongated cylindrical member to form a plurality of resilient grasping members. These slots may be cut in a spiral configuration to produce a helical basket. The resilient grasping members in the original compact shape are formed into an enlarged shape to create a workspace volume for the capture, manipulation and/or retrieval of an object within a patient. An external constraining device, such as an outer sheath, is used for introducing of the device and to compress the resilient grasping members over a calculus or other object into a substantially closed position. An internal actuating member within the passage of the elongated cylindrical member can provide an alternative method of opening and closing the retrieval device.
CA002323623A 1998-03-27 1999-03-26 Minimally-invasive medical retrieval device Expired - Lifetime CA2323623C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7954098P 1998-03-27 1998-03-27
US60/079,540 1998-03-27
PCT/US1999/006707 WO1999048429A1 (en) 1998-03-27 1999-03-26 Minimally-invasive medical retrieval device

Publications (2)

Publication Number Publication Date
CA2323623A1 true CA2323623A1 (en) 1999-09-30
CA2323623C CA2323623C (en) 2009-09-29

Family

ID=22151195

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002323623A Expired - Lifetime CA2323623C (en) 1998-03-27 1999-03-26 Minimally-invasive medical retrieval device

Country Status (11)

Country Link
US (1) US6500182B2 (en)
EP (1) EP1063926B1 (en)
JP (2) JP4528438B2 (en)
KR (1) KR20010042218A (en)
AT (1) ATE324835T1 (en)
AU (1) AU746955B2 (en)
CA (1) CA2323623C (en)
DE (1) DE69931152T2 (en)
DK (1) DK1063926T3 (en)
ES (1) ES2264257T3 (en)
WO (1) WO1999048429A1 (en)

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* Cited by examiner, † Cited by third party
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