WO1995032539A1 - Micromoteur et fil de guidage equipe de celui-ci, notamment pour guider des catheters - Google Patents

Micromoteur et fil de guidage equipe de celui-ci, notamment pour guider des catheters Download PDF

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Publication number
WO1995032539A1
WO1995032539A1 PCT/NL1995/000180 NL9500180W WO9532539A1 WO 1995032539 A1 WO1995032539 A1 WO 1995032539A1 NL 9500180 W NL9500180 W NL 9500180W WO 9532539 A1 WO9532539 A1 WO 9532539A1
Authority
WO
WIPO (PCT)
Prior art keywords
micro motor
rotor
motor according
guide wire
stator
Prior art date
Application number
PCT/NL1995/000180
Other languages
English (en)
Inventor
Petrus Matheus Josephus Knapen
Bernardus Johannes Meyer
Pieter Foppe De Vries
Original Assignee
Kinetron B.V.
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 Kinetron B.V. filed Critical Kinetron B.V.
Publication of WO1995032539A1 publication Critical patent/WO1995032539A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—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
    • 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
    • A61B8/4461—Features of the scanning mechanism, e.g. for moving the transducer within the housing of the probe
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
    • H02K11/014—Shields associated with stationary parts, e.g. stator cores
    • H02K11/0141—Shields associated with casings, enclosures or brackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/47—Air-gap windings, i.e. iron-free windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • Micro motor and guide wire in particular for guiding catheters, with such a micro motor
  • the invention relates to a micro motor provided with a stator, with a rotor with a rotor shaft, the rotor con ⁇ taining a number of magnet poles arranged about the rotor shaft, with a bearing for rotatably bearing the rotor, and with a connector for electrically connecting the stator to a power supply.
  • the invention also relates to a guide wire, in particular for guiding catheters, having such a micro motor.
  • a micro motor of the type named in the opening paragraph is described in the United States patent specification 5,240,003.
  • This known micro motor contains a rotor mounted on a rotor shaft with two magnet poles.
  • the rotor is accommodated in a non-magnetic, cylindrical stator hou ⁇ sing.
  • Two bearings are arranged at the ends of the stator housing for rotatably bearing the rotor shaft.
  • On the inside of the stator housing a flexible Kapton printed circuit board is arranged, which printed circuit board carries current conductor paths.
  • a connector electrically connects the current conductor paths to a power supply.
  • the United States patent specification 5,240,003 further discloses the use of such a micro motor in an ultrasonic instrument for the examination and/or treatment of blood vessels, for example.
  • This ultrasonic instrument contains a catheter with a distal end on which a small tip, of material which is transparent for sound waves, is atta ⁇ ched. Inside this tip there is a rotatable acoustic mir ⁇ ror, means for generating sound waves and for receiving echoes of the sound waves, and a micro motor for rotating the acoustic mirror. The space inside the tip is filled with a fluid to vouch for an sufficiently efficient acous ⁇ tic action of the instrument.
  • the catheter can also be provided with a capillary tube for containing a guide wire.
  • the external diameter of the catheter it would be desirable to make the external diameter of the catheter as small as possible so as to also be able to examine smaller blood vessels.
  • the external diameter of the micro motor should also be as small as possible. It has appeared that there are dif ⁇ ficulties attached to reducing the external diameter of the known micro motor to below 1 mm. Besides, it appears in practise that the action of the known micro motor can be disturbed if a guide wire is inserted into the capil ⁇ lary tube or if, for example, ferriferous material is present in the vicinity of the micro motor.
  • a micro motor of the type according to the invention named in the opening paragraph is charac ⁇ terized in that the stator consists of self-supporting current conductor paths, one end of each of the current conductor paths being attached to the connector. Because of this the stator consists exclusively of self-supporting current conductor paths, whereby the non-magnetic housing and the flexible print circuit board of the known micro motor have become unnecessary for carrying the conductor paths, as a result of which the external diameter of the micro motor is reduced.
  • one end of the rotor shaft is borne in the connector and the other end of the rotor shaft is borne by the other ends of the current conductor paths.
  • the bearing of the rotor shaft is realized by the self- supporting current conductor paths themselves, and the known non-magnetic stator housing is, for that reason, - superfluous, this leading to a saving of space. Because of the construction of a micro motor according to the inven ⁇ tion micro motors with an external diameter of as small as 0.1 mm are possible.
  • the bearing of the rotor shaft can take place one-sidedly as well as directly in the connector and in the stator, but for obtaining identical bearings at the ends of the rotor shaft bearing preferably occurs by means of bearing blocks.
  • the self-supporting current conductor paths can be formed by self-supporting coils.
  • a stator consisting of four (for two-phase operation) or six (for three-phase operation) lips of electrically conductive material which are placed about the rotor, is, however, easier to make and the micro motor according to the inven ⁇ tion can, at the same time, have a very open structure.
  • the control of the micro motor preferably takes place in two or more separate phases, lips facing each other being connected to the same phase.
  • the space in the tip can easily be filled with liquid, without formation of air bubbles or open space, this being necessary for an acoustic action.
  • the rotor has a through shaft or two axially spaced shaft journals spaced in the direction of the shaft. In this way supporting surfaces are obtained by the shaft journals for the bearing blocks or for the direct bearing by the stator and the connector.
  • the number of magnet poles is placed between the shaft journals, or is alternatively placed radially outside the stator.
  • one or more current conductor paths are of electrically as well as of magnetically conductive mate- rial.
  • the micro motor is provided with a housing of soft magnetic material for screening the number of magnet poles, which housing is attached to the rotor, then the rotor can be fully screened from the outside by the scree ⁇ ning housing which rotates with the rotor.
  • the external diameter of the micro motor is enlarged by this screening housing, micro motors with an external diameter as small as 0.4 mm are possible, which are not adversely affected by possible disturbance sources.
  • guide wire is generally made of non-magnetic stainless steel, it appears that by making these by means of drawing the guide wire shows sufficient magnetic characteristics to still function as source of disturbance for the micro motor.
  • the invention also provides a guide wire, in particular for guiding catheters, near one end of the guide wire a casing of material which is transparent for sound waves being integrated in the guide wire, within which casing are arranged a rotatable acoustic mirror, means, having electrically connecting elements, for generating sound waves and receiving echoes from the sound waves, and a micro motor according to any one of the preceding claims for rotating the acoustic mirror, which guide wire con ⁇ tains wire guiders for electrical connection of the con ⁇ nector of the micro motor and the electrically connecting elements to the other end of the guide wire.
  • a micro motor according to the invention can also be used as generator.
  • the micro motor according to the invention Because of the minor external diameter of the micro motor according to the invention it is possible to integrate the micro motor in a guide wire. Not only is it possible because of this to examine very small blood vessels, but a more efficient examination and/or operation in blood vessels or other cavities is possible.
  • the guide wire according to the invention has to be inserted first and the operation catheter then inserted over that.
  • the opera ⁇ tion catheter only has to be withdrawn along a small distance to be able to check the operation.
  • fig. 1 schematically shows in cross section an embodiment of a micro motor according to the invention
  • fig. 2 schematically shows in cross section an alternative embodiment of a micro motor according to the invention
  • FIG. 3 schematically shows in cross section the micro motor according to the figure 1 with a screening housing
  • FIG. 4 schematically shows in cross section an alternative embodiment of a micro motor with screening housing accor ⁇ ding to the invention
  • FIG. 5 schematically shows, in part in cross section, a guide wire with integrated micro motor according to the invention
  • fig. 6 shows an example of making a stator to be used in the micro motor according to the invention
  • fig. 7 shows some examples of stator cross sections.
  • the embodiment of the micro motor according to the inven ⁇ tion shown according to a longitudinal cross section in fig. 1 comprises a rotor 1 which is mounted to a rotor shaft 2.
  • the micro motor further contains a stator 3 consisting of self-supporting current conductor paths and a connector 4 for electrically connecting the stator 3 to a power supply.
  • the stator 3 is fixedly attached with one end to the connector 4.
  • the rotor shaft 2 is rotatably borne 15' in, on the one hand, the connector 4 and, on the other hand, in opening 15 in the stator.
  • the bearing can take place directly in the connector and the stator.
  • bearing blocks are of the type as are used, for example, in the watch industry and are, for example, made of corundum.
  • the rotor shaft 2 is provided with two spaced journals 5, 5'. These shaft journals 5, 5' provide a step-like widen ⁇ ing of the rotor shaft, as a result of which support surfaces for exactly defining the bearing are provided.
  • the rotor 1 is situated between the shaft journals 5, 5' and contains a number of magnet poles. The number of magnet poles can be two or more.
  • the magnet poles are made of a permanent-magnet material and can be integrally formed as a magnet bounded with synthetic.
  • the self-sup- porting current conductor paths of the stator 3 surround the rotor 1.
  • the current conductor paths can be made of a number of turns of conductor wire wound spirally and prov ⁇ ided with an insulating layer.
  • a layer of synthetic is arranged about the insulating layer which, when heated, adheres to the synthetic layer of the turn next to that, so that a self-supporting conductor path can be formed.
  • Suchlike conductor wires with an insulation layer and a synthetic layer are frequently used with cathode ray tube deflection coils.
  • a stator consisting of lips of electric- ally conductive material, such as copper are more easily made and therefore cheaper.
  • Such a stator 3 is, for exam ⁇ ple, made as shown in figure 6.
  • a view is shown of an etched or pressed "prestator” 3 ' cut out of copper foil, which prestator 3' contains an opening 15 in a central ring part 16 and four lips 17.
  • the lips 17 are bent to the position shown in figure 6B, whereby the stator 3 is formed.
  • the stator can be made of separate lips or can be cut, pressed or etched of bush- shaped material.
  • the number of lips is four for two-phase control of the micro motor and six for three-phase control of the micro motor.
  • the running characteristics of the rotor can be influenced by varying the cross section of the lips of the stator.
  • the cross section of the lips should be preferably such that a sinus-shaped current covering is obtained without a higher harmonic.
  • a cross section of the lips 17 as shown in figure 6C, the so- called rectangular cross section provides the desired running characteristics in conjunction with a magnet with a good sinus-shape field. If higher demands are to be made on the running characteristics, which implies the sinus- shaped current covering should be improved, then this can be answered by adapting the cross section of the lips, for example by etching.
  • a banana-shaped cross section (figure 7A) and a stepped cross section (figure 7B) are suitable for this. Further improvement of the sinus-shaped current covering is possible by forming an overlap between the lips, as is shown in figures 7C, 7D and 7E.
  • the rotor shaft is borne by the self-supporting conductor paths and the connector, as a result of which a micro motor is obtained with a diameter as small as 0.1 mm.
  • FIG 2 an alternative embodiment of a micro motor according to the invention is shown in which the rotor 1 with magnet poles is bush-shaped and surrounds the stator 3.
  • the bush-shaped rotor is fixedly connected to the rotor shaft.
  • the micro motor according to the invention is extremely susceptible to disturbances, such as adhesive couple of magnetic mate ⁇ rial which is near the micro motor.
  • the micro motor according to the inven- tion is provided with a housing 6 of soft magnetic mate ⁇ rial for screening the rotor, this housing being attached to the rotor 1 and 2, as is shown in the figures 3 and 4.
  • the screening housing 6 turns with the rotor 1, whereby no additional magnetic losses, no disturbing adhesive couple occur as a consequence of tolerance inac ⁇ curacies and a strengthening of the magnetic field with corresponding better motor working in comparison with a stationary screening housing.
  • the screening housing 6 surrounds the construction as shown in figure 1.
  • the rotor is attached to the inside of the screening housing 6 and the stator 3 is surrounded by this.
  • the micro motor is impervious to disturbances from outside.
  • the micro motor according to the invention is suitable for use in all kinds of areas, the advantages of the small micro motor according to the invention par ⁇ ticularly come to the fore in use in the watch industry or in catheters for examination of and/or operation of blood vessels.
  • the connector When used in catheters the connector functions as fit in the catheter, one or more slots or holes being arranged in the connector for filling the micro motor with liquid.
  • the micro motor according to the invention is not only suitable in catheters, but it can even be integrated in a guide wire which is used for guiding these catheters.
  • a suchlike guide wire 8 is schematically shown in figure 5.
  • the basic body 12 of the guide wire 8 is built up of woven threads of stainless steel.
  • the end 18 of the guide wire is made in the known way as search end and is also called "pig's tail".
  • a casing 9 of material which is transparent for sound waves is integ ⁇ rated with the guide wire 8.
  • a rotatable acoustic mirror 10 Inside this casing 9 are ar ⁇ ranged a rotatable acoustic mirror 10, means 11, having electrically connecting elements, for generating sound waves and receiving echoes from the sound waves, and a micro motor (1, 2, 3, 4, 5, 5') arranged according to the -invention.
  • the rotor shaft 2 of the micro motor is con ⁇ nected to the acoustic mirror 10 to permit it to rotate.
  • the guide wire 8 further contains electric wire conductors 13, 13' 14 and 14' for connecting the stator 3 of the micro motor with an electrical source and for feeding the means 11, respectively and subsequently transporting signals of converted echoes of sound waves given out by the means 11.
  • a suchlike guide wire considerably simpli ⁇ fies the examination and the operation of blood vessels.
  • the space inside the casing 9 should be filled with liquid. Because of an open costruction of the micro motor according to the invention, the filling of this space can take place without air bubbles or empty, that is to say, not filled portions being left behind. In this way the acoustic action of the guide wire is promo ⁇ ted.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Electromagnetism (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un micromoteur pourvu d'un stator et d'un rotor. Le rotor contient un certain nombre de pôles magnétiques disposés autour de son arbre. Le micromoteur comporte également un connecteur pour raccorder électriquement le stator à une source de courant. Le stator est constitué de chemins conducteurs de courant autonomes, une extrémité de chacun de ces chemins conducteurs étant fixée au connecteur. De préférence, une extrémité de l'arbre de rotor est supportée dans le connecteur et l'autre extrémité est supportée dans l'autre extrémité du stator. L'invention concerne également un fil de guidage équipé d'un tel micromoteur, notamment pour guider des cathéters. Au voisinage d'une extrémité du fil de guidage, un boîtier constitué d'un matériau laissant passer des ondes sonores est intégré à ce fil. A l'intérieur de ce boîtier sont disposés un miroir acoustique rotatif, des organes dotés d'éléments de connexion électrique et permettant de produire des ondes sonores et de recevoir des échos de ces dernières, ainsi qu'un micromoteur permettant la rotation du miroir acoustique. Le fil de guidage comporte des conducteurs filaires destinés au raccordement électrique, avec son autre extrémité, du connecteur du micromoteur et des éléments de connexion électrique.
PCT/NL1995/000180 1994-05-25 1995-05-24 Micromoteur et fil de guidage equipe de celui-ci, notamment pour guider des catheters WO1995032539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9400849 1994-05-25
NL9400849A NL9400849A (nl) 1994-05-25 1994-05-25 Micromotor en geleidedraad, in het bijzonder voor het geleiden van catheters, voorzien van een dergelijke micromotor.

Publications (1)

Publication Number Publication Date
WO1995032539A1 true WO1995032539A1 (fr) 1995-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1995/000180 WO1995032539A1 (fr) 1994-05-25 1995-05-24 Micromoteur et fil de guidage equipe de celui-ci, notamment pour guider des catheters

Country Status (2)

Country Link
NL (1) NL9400849A (fr)
WO (1) WO1995032539A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0976417A1 (fr) * 1998-07-31 2000-02-02 Zuli Holdings Ltd. Dispositif et procédé de positionnement et de manipulation d'un objet
WO2000024448A3 (fr) * 1998-10-23 2000-10-05 Boston Scient Ltd Amelioration apportee a un systeme et a un procede d'imagerie intraluminale
US6419644B1 (en) 1998-09-08 2002-07-16 Scimed Life Systems, Inc. System and method for intraluminal imaging
US6626852B2 (en) 1998-09-08 2003-09-30 Scimed Life Systems, Inc. System for intraluminal imaging
US6793634B2 (en) 1998-10-23 2004-09-21 Scimed Life Systems, Inc. System and method for intraluminal imaging
WO2011037843A1 (fr) * 2009-09-23 2011-03-31 Boston Scientific Scimed, Inc. Systèmes et procédés de fabrication et d'utilisation de systèmes d'imagerie ultrasonore intravasculaire pourvus de noyaux d'imagerie étanches
WO2011037842A3 (fr) * 2009-09-24 2011-05-12 Boston Scientific Scimed, Inc. Systèmes et procédés de fabrication et d'utilisation d'un moteur pas-à-pas pour système d'imagerie ultrasonore intravasculaire
WO2010117634A3 (fr) * 2009-03-31 2011-08-04 Boston Scientific Scimed, Inc. Systèmes et procédés pour fabriquer et utiliser un élément central d'imagerie d'un système d'imagerie ultrasonore intravasculaire
EP4333266A1 (fr) * 2022-09-02 2024-03-06 maxon international ag Moteur électrique à commutation électronique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH345832A (fr) * 1958-03-11 1960-04-15 Movado Montres Moteur électrodynamique
US4883981A (en) * 1986-06-04 1989-11-28 Gerfast Sten R Dynamoelectric machine having ironless stator coil
WO1993005712A1 (fr) * 1991-09-24 1993-04-01 Du-Med B.V. Instrument ultrasonore a moteur miniature possedant des bobines de stator sur une carte de circuits souple
DE4205985A1 (de) * 1992-02-27 1993-09-16 Fritz Faulhaber Gmbh & Co Kg F Buerstenloser aussenlaeufermotor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH345832A (fr) * 1958-03-11 1960-04-15 Movado Montres Moteur électrodynamique
US4883981A (en) * 1986-06-04 1989-11-28 Gerfast Sten R Dynamoelectric machine having ironless stator coil
WO1993005712A1 (fr) * 1991-09-24 1993-04-01 Du-Med B.V. Instrument ultrasonore a moteur miniature possedant des bobines de stator sur une carte de circuits souple
DE4205985A1 (de) * 1992-02-27 1993-09-16 Fritz Faulhaber Gmbh & Co Kg F Buerstenloser aussenlaeufermotor

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2204207A1 (fr) * 1998-07-31 2010-07-07 Oscillon Ltd. Dispositif et procédé de positionnement et de manipulation d'un objet
DE19935827B4 (de) * 1998-07-31 2013-02-28 Zuli Holdings Ltd. Vorrichtung zum wahlweise Positionieren und Handhaben eines Gerätes
US6238401B1 (en) 1998-07-31 2001-05-29 Zuli Holdings Ltd. Apparatus and method for selectively positioning a device and manipulating it
EP0976417A1 (fr) * 1998-07-31 2000-02-02 Zuli Holdings Ltd. Dispositif et procédé de positionnement et de manipulation d'un objet
USRE40305E1 (en) 1998-07-31 2008-05-06 Zuli Holdings Ltd. Apparatus and method for selectively positioning a device and manipulating it
US6419644B1 (en) 1998-09-08 2002-07-16 Scimed Life Systems, Inc. System and method for intraluminal imaging
US6620113B2 (en) 1998-09-08 2003-09-16 Scimed Life Systems, Inc. System for intraluminal imaging
US6626853B2 (en) 1998-09-08 2003-09-30 Scimed Life Systems, Inc. System for intraluminal imaging
US6626852B2 (en) 1998-09-08 2003-09-30 Scimed Life Systems, Inc. System for intraluminal imaging
US6641546B2 (en) 1998-09-08 2003-11-04 Scimed Life Systems, Inc. System for intraluminal imaging
US6827693B2 (en) 1998-09-08 2004-12-07 Scimed Life Systems, Inc. System and method for intraluminal imaging
US6793634B2 (en) 1998-10-23 2004-09-21 Scimed Life Systems, Inc. System and method for intraluminal imaging
WO2000024448A3 (fr) * 1998-10-23 2000-10-05 Boston Scient Ltd Amelioration apportee a un systeme et a un procede d'imagerie intraluminale
WO2010117634A3 (fr) * 2009-03-31 2011-08-04 Boston Scientific Scimed, Inc. Systèmes et procédés pour fabriquer et utiliser un élément central d'imagerie d'un système d'imagerie ultrasonore intravasculaire
WO2011037843A1 (fr) * 2009-09-23 2011-03-31 Boston Scientific Scimed, Inc. Systèmes et procédés de fabrication et d'utilisation de systèmes d'imagerie ultrasonore intravasculaire pourvus de noyaux d'imagerie étanches
WO2011037842A3 (fr) * 2009-09-24 2011-05-12 Boston Scientific Scimed, Inc. Systèmes et procédés de fabrication et d'utilisation d'un moteur pas-à-pas pour système d'imagerie ultrasonore intravasculaire
EP4333266A1 (fr) * 2022-09-02 2024-03-06 maxon international ag Moteur électrique à commutation électronique

Also Published As

Publication number Publication date
NL9400849A (nl) 1996-01-02

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