WO1993008863A3 - Transport catheter and ultrasound probe for use with same - Google Patents

Transport catheter and ultrasound probe for use with same Download PDF

Info

Publication number
WO1993008863A3
WO1993008863A3 PCT/US1992/009579 US9209579W WO9308863A3 WO 1993008863 A3 WO1993008863 A3 WO 1993008863A3 US 9209579 W US9209579 W US 9209579W WO 9308863 A3 WO9308863 A3 WO 9308863A3
Authority
WO
WIPO (PCT)
Prior art keywords
lumen
cross
crystal
section
allows
Prior art date
Application number
PCT/US1992/009579
Other languages
French (fr)
Other versions
WO1993008863A2 (en
Inventor
Clement E Lieber
Miriam H Taimisto
David L Swendson
Mark A Konno
Lawrence J Busse
Robert Skidmore
Original Assignee
Baxter Int
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
Priority claimed from US07/790,724 external-priority patent/US5246016A/en
Application filed by Baxter Int filed Critical Baxter Int
Priority to EP92924336A priority Critical patent/EP0611310B1/en
Priority to DE69226371T priority patent/DE69226371T2/en
Priority to JP5508753A priority patent/JPH07505790A/en
Publication of WO1993008863A2 publication Critical patent/WO1993008863A2/en
Publication of WO1993008863A3 publication Critical patent/WO1993008863A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/445—Details of catheter construction
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M25/0029—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M25/0032—Multi-lumen catheters with stationary elements characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making

Abstract

A catheter (10) with several independent lumens (36, 40, 44, 48) for accepting probes (82) and for introducing fluid into a body cavity is disclosed. The first lumen (36) is circular in cross-section, and has a cross-sectional dimension of approximately half the maximum outer dimension of the catheter body (12). The second lumen (40) is crescent-shaped in cross-section and occupies at least a quarter of an arc around the cross-section of the catheter body (12). The large cross-section of the second lumen (40) allows for a high fluid flow rate through the lumen (40). The third lumen (44) allows for inflation of an inflation balloon (when present), and the fourth lumen (48) allows for the passing of a portion of an instrument along the length of the lumen. A probe (82) is also disclosed. The probe transducer portion (92) is constructed of a crystal hollow cylinder (94) with an inside lead (96) attached to the inner surface (106) of the crystal cylinder (94). One end (116) of the outside lead (98) is positioned close to the outer surface (108), in a plane (120) tangential to the outer surface (108), an is coupled to the outer surface (108) of the crystal cylinder (94) by a thin sputtered layer (104) of conductive material. The probe transducer (92) also includes a layer (100) of acoustically absorbing material on the proximal end (124) of the crystal (94), and layer (102) of acoustically coupling material on the distal end (126) of the crystal cylinder (94). The transducer element simultaneously generates an axially oriented signal beam (144) at one frequency and a radially oriented signal beam (146) at a different frequency. The signal beams (144, 146) are analyzed to calculate the blood flow area (A) and the blood flow velocity (V), the product of which is the blood flow rate (Q).
PCT/US1992/009579 1991-11-08 1992-11-05 Transport catheter and ultrasound probe for use with same WO1993008863A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP92924336A EP0611310B1 (en) 1991-11-08 1992-11-05 Transport catheter and ultrasound probe for use with same
DE69226371T DE69226371T2 (en) 1991-11-08 1992-11-05 TRANSPORT CATHETER AND ULTRASONIC PROBE FOR USE WITH THE SAME
JP5508753A JPH07505790A (en) 1991-11-08 1992-11-05 Transfer catheter and ultrasound probe for use with the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US790,724 1977-04-25
US07/790,724 US5246016A (en) 1991-11-08 1991-11-08 Transport catheter and multiple probe analysis method
US86516392A 1992-04-08 1992-04-08
US865,163 1992-04-08

Publications (2)

Publication Number Publication Date
WO1993008863A2 WO1993008863A2 (en) 1993-05-13
WO1993008863A3 true WO1993008863A3 (en) 1993-10-28

Family

ID=27121070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/009579 WO1993008863A2 (en) 1991-11-08 1992-11-05 Transport catheter and ultrasound probe for use with same

Country Status (6)

Country Link
US (2) US5363853A (en)
EP (1) EP0611310B1 (en)
JP (1) JPH07505790A (en)
CA (1) CA2123088A1 (en)
DE (1) DE69226371T2 (en)
WO (1) WO1993008863A2 (en)

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US6210356B1 (en) 1998-08-05 2001-04-03 Ekos Corporation Ultrasound assembly for use with a catheter
US6176842B1 (en) 1995-03-08 2001-01-23 Ekos Corporation Ultrasound assembly for use with light activated drugs
US5544660A (en) * 1995-03-30 1996-08-13 Boston Scientific Corp. Acoustic imaging catheter and method of operation
US5606974A (en) * 1995-05-02 1997-03-04 Heart Rhythm Technologies, Inc. Catheter having ultrasonic device
US20040220455A1 (en) * 1996-06-26 2004-11-04 Lowe Robert I. Method for monitoring blood characteristics and cardiopulmonary function
US5971949A (en) * 1996-08-19 1999-10-26 Angiosonics Inc. Ultrasound transmission apparatus and method of using same
US5797848A (en) * 1997-01-31 1998-08-25 Acuson Corporation Ultrasonic transducer assembly with improved electrical interface
US6723063B1 (en) 1998-06-29 2004-04-20 Ekos Corporation Sheath for use with an ultrasound element
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US6582392B1 (en) 1998-05-01 2003-06-24 Ekos Corporation Ultrasound assembly for use with a catheter
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US7422563B2 (en) 1999-08-05 2008-09-09 Broncus Technologies, Inc. Multifunctional tip catheter for applying energy to tissue and detecting the presence of blood flow
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Also Published As

Publication number Publication date
WO1993008863A2 (en) 1993-05-13
US5363853A (en) 1994-11-15
EP0611310B1 (en) 1998-07-22
US5351693A (en) 1994-10-04
DE69226371T2 (en) 1999-04-22
CA2123088A1 (en) 1993-05-13
DE69226371D1 (en) 1998-08-27
EP0611310A1 (en) 1994-08-24
JPH07505790A (en) 1995-06-29

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