Connect public, paid and private patent data with Google Patents Public Datasets

Patient infusion system for use with MRI

Download PDF

Info

Publication number
USRE36648E
USRE36648E US09027852 US2785298A USRE36648E US RE36648 E USRE36648 E US RE36648E US 09027852 US09027852 US 09027852 US 2785298 A US2785298 A US 2785298A US RE36648 E USRE36648 E US RE36648E
Authority
US
Grant status
Grant
Patent type
Prior art keywords
system
infusion
patient
control
magnetic
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.)
Expired - Lifetime
Application number
US09027852
Inventor
Arthur E. Uber, III
Seid Waddell
John Stulen
Jon E. Manley
Salvatore J. Dedola
Gordon C. Newell
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.)
Bayer Medical Care Inc
Original Assignee
Bayer Medical Care 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
Grant date
Family has litigation

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/285Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/007Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546Front-loading type injectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/281Means for the use of in vitro contrast agents
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/283Intercom or optical viewing arrangements, structurally associated with NMR apparatus
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42Screening
    • G01R33/421Screening of main or gradient magnetic field
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00Surgery
    • Y10S128/01Motorized syringe

Abstract

This invention relates generally to the field of Magnetic Resonance Imaging (MRI) systems for generating diagnostic images of a patient's internal organs and more particularly, this invention relates to improved MRI systems with decreased interference between the magnetic field used for producing diagnostic images and the magnetic fields generated by the electric motors used for driving the pistons of the contrast media injectors. Additionally, the system employs an improved communication link between an externally located system controller and the injection head control unit located within the electromagnetic isolation barrier which defines the magnetic imaging room.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates generally to the field of Magnetic Resonance Imaging (MRI) systems for generating diagnostic images of a patient's internal organs and more particularly, this invention relates to improved MRI systems exhibiting decreased interference between the magnetic field used for producing diagnostic images and spurious magnetic fields created by ancillary equipment, such as the electric motors used for driving the pistons of the contrast media injectors. Additionally, the system employs an improved communication link between an externally located system controller and the injection head control unit which is located within the electromagnetic isolation barrier of the magnetic imaging suite.

2. Description of the Related Art

It has become recognized that MRI systems require isolation from external sources of electromagnetic fields, if optimum image quality is to be obtained from MRI diagnostic procedures. Conventional MRI systems have typically employed some form of electromagnetic isolation chamber which is generally a room enclosed by copper sheeting or conductive mesh material that isolates the room from undesirable sources of electromagnetic radiation and the electromagnetic noise inherent in the atmosphere.

In order to realize the full benefit of the shielded room, these systems employ a controller for the contrast media injector portion of the system which is isolated from the media injector. Such isolation is effected to prevent undesirable electromagnetic radiation generated by the system controller from interfering with the signals used to create the magnetic resonance images.

The external, isolated location of the system controller creates various problems associated with the installation and operation of these systems. One such problem is the need to provide a communications link between the externally located controller and the contrast media injectors, without introducing extraneous electromagnetic radiation. That is, there is a need to provide electrical power supply lines for operation of the contrast media injectors and the injector control circuitry while maintaining the integrity of the electromagnetic shield.

Previous attempts to solve these problems included drilling holes in the wall of the electromagnetic shield for inserting the necessary lines or, alternatively, laying the lines under a shielded floor of the imaging room. These alternatives have proven to be less than optimum, since spurious radiation arose from the presence of the various supply cables within the shielded imaging suite. Additionally, MRI systems which employed these solutions required substantial site dedication and were therefore not very portable.

Another problem associated with conventional magnetic resonance imaging systems is the interference which occurs between the high power magnetic field used for generating the magnetic resonance image and the magnetic fields created by the electric motors which control the operation of the contrast media injection heads. The magnetic field generated by the magnet of the magnetic resonance imaging system is extremely powerful and adversely affects the operation of the electric motors used in the injector head. Additionally, operation of the electric motors in close proximity to the magnetic field used to generate the magnetic resonance image also has an adverse impact on the quality of the resulting image.

In conventional MRI systems, the injection head unit is located adjacent to the patient being examined and the electric motors associated with the injection syringes are directly connected to the syringe pistons. Characteristically, the syringes and the drive motors have been mounted on the injection head unit. The close proximity of the electric motors to the magnetic field used for generating the magnetic resonance image typically resulted in a decrease in motor performance and the ability to control the electric motors used in the injector heads, as well as an overall decrease in system performance.

Accordingly, it is an object of the present invention to provide an improved magnetic resonance imaging contrast media delivery system having decreased interference between the magnetic field used to obtain the magnetic resonance image and the magnetic fields created by ancillary equipment.

It is a further object of this invention to provide an MRI system which minimizes the interference between fields created by the electric motors used to drive the contrast media injection plungers and the magnetic field used to generate the magnetic resonance image.

It is another object of the present invention to provide an MRI contrast media injection system having an improved communication link between the system controller and the injection control unit.

Numerous other objects and advantages of the present invention will be apparent from the following summary, drawings and detailed description of the invention and its preferred embodiment; in which:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram outlining the functional design of the system; and,

FIG. 2 is a diagram illustrating the system of the present invention.

SUMMARY OF THE INVENTION

The invention comprises an improved magnetic resonance imaging system which decreases the amount of electromagnetic interference that has heretofore been found within a MRI isolation suite while increasing the portability and ease of system installation. The invention reduces deleterious interaction between the imaging magnetic field and the magnetic field generated by the electric motors which control and operate contrast media injectors.

The system includes a master controller located externally of the shielded imaging room within which a contrast media injection head and a separate injection control unit are located. The system controller communicates with the head control unit via external and internal transceivers which form a communications link for traversing the electromagnetic isolation barrier of the imaging room.

In the preferred embodiment, this communication link is made through a window in the isolation room barrier. These windows are typically in the form of a glass laminate containing a conductive wire mesh, or alternatively, a window that is coated with a thin sheet of conductive material such as gold to maintain the shielding characteristics of the isolation room. The communications link consists of electromagnetic transceivers which operate in a frequency range which permeates the window while maintaining the integrity of the isolation barrier. Infrared or electromagnetic energy in the visual range provide the best results. Alternatively, a fiberoptic communication link can be used to provide the communication link, since fiberoptics do not create electromagnetic radiation.

The present invention also incorporates a contrast media injection unit located within the shielded room which comprises separate contrast media injector head and injection head control unit. The contrast media injection head, and specifically the syringe pistons are located in close proximity to the patient and consequently are located within the powerful magnetic field used to generate the magnetic resonance image. The head control unit which controls operation of the injector head is located from 10-15 feet away from the injector head control unit. The head control unit incorporates electric motors to control and to operate the pistons of syringes used for the injection of patients. A non-rigid operating drive connects the electric motors and control unit to the syringe pistons located on the injection head. In a preferred form, the drive connection can be by way of flexible shafts. Each flexible drive shaft forms a mechanical link between an electric motor located on the head control unit and a piston of the syringes on the injector head. Alternatively, a hydraulic system could be used to control the piston of the injector head. In the preferred embodiment, the flexible drive shaft is manufactured from a non-ferrous metal such as hard brass. The distancing of the head control unit and drive motors from the injector head decreases the adverse effects that the imaging magnetic field has on the electric motors of the injectors and conversely, the adverse affects of spurious electromagnetic radiation arising from operating of the electric motors used to control and operate the contrast media injectors is also reduced significantly.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 illustrates an improved magnetic resonance imaging system according to the present invention and is shown generally at 10. The MRI system includes a system controller 12 which incorporates a computer 14 and a battery charging unit 16. The system controller 12 is located externally of the imaging room 17, the imaging room being shielded from electromagnetic interference by a shield 18. Isolation can be achieved by completely enclosing the room with copper sheet material or some other suitable, conductive layer such as wire mesh. Communication line 20, connects the system controller 12 with an external infrared/optical communications transceiver 22. The shielded imaging room 17 also incorporates a patient viewing window 24 in the shield 18 which allows an observer to view the room without breaching the electromagnetic shield 18. The window 24 can be formed by sandwiching a wire mesh material (not shown) between sheets of glass or coating the window with a thin coating of conductive material such as gold (not shown) to maintain the continuity of the electromagnetic shield 18.

An infrared/optical communications transceiver 26 is positioned internally of the imaging room 17 at the viewing window 24 opposite the external communications transceiver 22 such that the internal and external communications transceivers communicate with each other through the viewing window with no breach of the electromagnetic shield. A communications link 28 located within the shielded area connects the internal infrared/optical transceiver with a contrast media injection control unit 30. The injection control unit 30 is powered advantageously by rechargeable battery 32. The injection control unit 30 also incorporates control circuitry which controls electric motors 35, 36 which are also located within the injection control unit. The injection control unit is contained within an electromagnetic shield 37 to prevent the undesired electromagnetic radiation generated by the electric motors from interfering with the magnetic field used to generate the magnetic resonance image.

The injection control unit 30 is separated from the injection head unit 38 by as great a distance as possible. In the preferred embodiment, this is typically ten to fifteen feet. The injection head unit must be located in close proximity to the patient in order to decrease the distance that the contrast media fluid must travel from the contrast media injectors. The injection head unit 38 includes contrast media injection syringe and piston units 40, 42. The syringes 40, 42 are connected to the electric motors in the injection control unit by flexible mechanical drive shafts 44, 46, respectively. The drive shafts are made from a nonferrous metal such as hard brass.

The separation of the electric motors from the injection head, as well as the additional electromagnetic shielding, results in improved system performance and overall resulting image quality. Additionally, the use of an infrared/optical communications link results in a system which is both portable and easy to use.

Claims (20)

    What we claim is: .[.1. A patient infusion control apparatus for use in a magnetic resonance imaging apparatus to generate images of a patient, the patient infusion control apparatus comprising:
  1. battery..].8. A patient infusion system for use with a magnetic resonance imaging system, the patient infusion system comprising:
    a) a room shielded from electromagnetic interference;
    b) a system controller located externally of the shielded room;
    c) a patient infusion apparatus including infusion apparatus control means for controlling an infusion operation, the patient infusion apparatus located within the shielded room; and,
    d) a fiber optic communications .Iadd.control .Iaddend.link between the
  2. system controller and the infusion apparatus control means. 9. A patient infusion system for use with a magnetic resonance imaging system, the patient infusion system comprising:
    a) a room shielded from electromagnetic interference, which includes a viewing window;
    b) a system controller external to the shielded room;
    c) a patient infusion apparatus within the shielded room and including infusion apparatus control means for controlling an infusion operation; and,
    d) a communicating .Iadd.control .Iaddend.link between the system controller and the infusion apparatus control means.Iadd., the control link adapted to be substantially non-reactive with the magnetic field of
  3. the imaging system.Iaddend.. 10. The patient infusion system of claim 9, wherein the communications link includes means for transmitting and
  4. receiving electromagnetic radiation through the viewing window. 11. The patient infusion system of claim 9, wherein the communications link includes means for transmitting and receiving infrared electromagnetic
  5. energy. 12. The patient infusion system of claim 9, wherein the communications link includes means for transmitting and receiving
  6. electromagnetic energy in the visual range. 13. A patient infusion system for use with a magnetic resonance imaging system to generate images of a patient, the patient infusion system comprising:
    a) a room shielded from electromagnetic interference by an electromagnetic shield including a viewing window;
    b) a system controller located outside the room;
    c) a patient infusion apparatus located inside the room including infusion apparatus control means for controlling an infusion operation;
    d) a communications .Iadd.control .Iaddend.link between the system controller and the infusion apparatus control means.Iadd., the control link adapted to be substantially non-reactive with the magnetic field of the imaging system.Iaddend.; and,
    e) an electric drive motor and motor control circuitry separated from the patient infusion apparatus and a non-rigid drive connection between the electric drive motor and the patient infusion apparatus .[.whereby.]. .Iadd.wherein .Iaddend.the motor is positioned to be substantially non-reactive with .[.an electromagnetic.]. .Iadd.the magnetic
  7. .Iaddend.field of the imaging system. 14. The patient infusion system of claim 13, wherein the communications link comprises an external transceiver located outside the room and an internal transceiver located inside the room, both said transceivers communicating electromagnetic
  8. energy through the viewing window in the room. 15. The patient infusion system of claim 14, wherein the electromagnetic energy communicated
  9. between said transceivers is in the visible light spectrum. 16. The patient infusion system of claim 14, wherein said electromagnetic energy
  10. communicated between said transceivers is in the infrared spectrum. 17. The patient infusion system of claim 13, further comprising a rechargeable battery located in the room and connected to the electric
  11. drive motor for providing power to the electric drive motor. 18. The patient infusion system of claim 13, wherein the electric drive motor and motor control circuitry are enclosed within the electromagnetic shield.
  12. The patient infusion system of claim 13, wherein the infusion apparatus control means is adapted to be located at least ten to fifteen
  13. feet from the patient. 20. The patient infusion system of claim 13,
  14. wherein the non-rigid drive connection is comprised of hard brass. 21. The patient infusion system of claim 13, wherein the patient infusion
  15. apparatus is adapted to be located in close proximity to the patient. 22. .[.A method of patient infusion for use with a magnetic resonance imaging system, the method comprising the steps of:
    a) providing patient infusion apparatus having a patient infusion apparatus controller and means operable to inject fluid into a patient;
    b) positioning the patient infusion apparatus controller away from the patient infusion apparatus to prevent interference in the image, the infusion apparatus controller including at least one electric motor and motor control circuitry; and
    c) operably connecting the electric motor for controlling the patient infusion apparatus to the patient infusion apparatus with a non-rigid drive connection, the electric motor operating the patient infusion apparatus to infuse media into a patient..]. .Iadd.The patient infusion system of claim 9 wherein the communications link comprises a fiber optic
  16. line..Iaddend.23. A method of patient infusion for use with a magnetic resonance imaging system, the method comprising the steps of:
    a) providing a room shielded from electromagnetic interference including a viewing window;
    b) providing a system controller located outside the room;
    c) providing a patient infusion apparatus including infusion apparatus control means for controlling an infusion operation, the patient infusion apparatus located inside the room; and
    d) transmitting control signals from the system controller to the infusion
  17. apparatus control means through the viewing window. .Iadd.24. The method of claim 23 wherein the control signals are transmitted via electromagnetic transceivers..Iaddend..Iadd.25. A patient infusion system for use with a magnetic resonance imaging system, the patient infusion system comprising:
    an infusion apparatus positioned within a room shielded from electromagnetic interference, the infusion apparatus comprising an injector adapted to accommodate at least two syringes mounted thereon for injecting fluid into a patient during a magnetic resonance imaging procedure, the at least two syringes operably engaged with at least one drive mechanism of the injector; and
    a system controller positioned external to the shielded room and in communication with the infusion apparatus for controlling the operation thereof..Iaddend..Iadd.26. The patient infusion system of claim 25 wherein the infusion apparatus further comprises an injector control unit positioned within the shielded room..Iaddend..Iadd.27. The patient infusion system of claim 26 wherein the injector control unit comprises a battery for powering the injector..Iaddend..Iadd.28. The patient infusion system of claim 26 wherein the injector control unit is remotely
  18. positioned from the injector..Iaddend..Iadd.29. The patient infusion system of claim 28 wherein the injector and the injector control unit are connected by a non-rigid drive connection..Iaddend..Iadd.30. The patient infusion system of claim 25 wherein the infusion apparatus and the system controller communicate with each other by means of a communication link disposed therebetween..Iaddend..Iadd.31. The patient infusion system of claim 30 wherein the communication link comprises a fiber optic line..Iaddend..Iadd.32. The patient infusion system of claim 30 wherein the communication link comprises means for transmitting and receiving electromagnetic radiation through a window in the shielded
  19. room..Iaddend..Iadd.33. A patient infusion system for use with a magnetic resonance imaging system, the patient infusion system comprising:
    an infusion apparatus positioned within a room shielded from electromagnetic interference, the infusion apparatus comprising an injector for injecting fluid into a patient during a magnetic resonance imaging procedure;
    a system controller positioned external to the shielded room; and
    a communication control link between the infusion apparatus and the system controller for controlling the operation of the infusion system, the control link adapted to be substantially non-reactive with the magnetic field of the imaging system..Iaddend..Iadd.34. The patient infusion system of claim 33, further comprising at least one battery for powering the infusion apparatus..Iaddend..Iadd.35. The patient infusion system of claim 34 wherein the system controller comprises a battery charger for recharging the at least one battery..Iaddend..Iadd.36. The patient infusion system of claim 33 wherein the injector is adapted to accommodate at least two syringes mounted thereon..Iaddend..Iadd.37. A method of infusing a patient with fluid during a magnetic resonance imaging procedure, the method comprising the following steps:
    providing an injector adapted to accommodate at least two syringes mounted thereon for injecting fluid into a patient during a magnetic resonance imaging procedure, the at least two syringes operably engaged with at least one drive mechanism of the injector, the injector positioned adjacent to the patient within a room shielded from electromagnetic interference;
    injecting fluid contained within the at least two syringes into the patient; and
    generating magnetic resonance images of the patient..Iaddend..Iadd.38. A method of patient infusion for use with a magnetic resonance imaging system, the method comprising the following steps:
    providing a room shielded from electromagnetic interference;
    providing a system controller positioned external to the shielded room;
    providing an infusion apparatus positioned within the shielded room; and
    transmitting control signals via a communication link between the system controller and the infusion apparatus, the control signals adapted to be substantially non-reactive with the magnetic field of the imaging
  20. system..Iaddend..Iadd.39. The method of claim 38 wherein the communication link comprises a fiber optic line..Iaddend..Iadd.40. The method of claim 38 wherein the communication link comprises electromagnetic transceivers that transmit the control signals through a window in the shielded room..Iaddend..Iadd.41. A patient infusion system for use with a magnetic resonance imaging system, the patient infusion system comprising:
    a patient infusion apparatus within a room shielded from electromagnetic interference including a viewing window;
    a system controller external to the shielded room; and
    a communicating control link between the system controller and the infusion apparatus, the control link comprising means for transmitting and receiving electromagnetic energy through the viewing window..Iaddend..Iadd.42. The system of claim 41 wherein the electromagnetic energy is in the visible light spectrum..Iaddend..Iadd.43. The system of claim 41 wherein the electromagnetic energy is in the infrared spectrum..Iaddend..Iadd.44. The system of claim 41 wherein the electromagnetic energy comprises electromagnetic radiation..Iaddend.
US09027852 1993-11-26 1998-02-23 Patient infusion system for use with MRI Expired - Lifetime USRE36648E (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08158055 US5494036A (en) 1993-11-26 1993-11-26 Patient infusion system for use with MRI
US09027852 USRE36648E (en) 1993-11-26 1998-02-23 Patient infusion system for use with MRI

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09027852 USRE36648E (en) 1993-11-26 1998-02-23 Patient infusion system for use with MRI
US09714907 USRE37602E1 (en) 1993-11-26 2000-11-16 Patient infusion system for use with MRI

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US08158044 Reissue US5351144A (en) 1992-02-04 1993-11-24 Plasma addressed electro-optical device with non-continuous barrier ribs
US08158055 Reissue US5494036A (en) 1993-11-26 1993-11-26 Patient infusion system for use with MRI

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09714907 Reissue USRE37602E1 (en) 1993-11-26 2000-11-16 Patient infusion system for use with MRI

Publications (1)

Publication Number Publication Date
USRE36648E true USRE36648E (en) 2000-04-11

Family

ID=22566519

Family Applications (3)

Application Number Title Priority Date Filing Date
US08158055 Expired - Lifetime US5494036A (en) 1993-11-26 1993-11-26 Patient infusion system for use with MRI
US09027852 Expired - Lifetime USRE36648E (en) 1993-11-26 1998-02-23 Patient infusion system for use with MRI
US09714907 Expired - Lifetime USRE37602E1 (en) 1993-11-26 2000-11-16 Patient infusion system for use with MRI

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US08158055 Expired - Lifetime US5494036A (en) 1993-11-26 1993-11-26 Patient infusion system for use with MRI

Family Applications After (1)

Application Number Title Priority Date Filing Date
US09714907 Expired - Lifetime USRE37602E1 (en) 1993-11-26 2000-11-16 Patient infusion system for use with MRI

Country Status (4)

Country Link
US (3) US5494036A (en)
JP (1) JP2752909B2 (en)
DE (2) DE69417155T3 (en)
EP (3) EP0655220B2 (en)

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6304246B1 (en) * 1997-08-25 2001-10-16 Siemens Aktiengesellschaft Input device for shifting a marker on a monitor screen
US20020115933A1 (en) * 2001-02-14 2002-08-22 Douglas Duchon Fluid injector system
US20020117668A1 (en) * 1999-11-30 2002-08-29 Jong-Sung Kim X-ray image sensor and method for fabricating the same
US20020143294A1 (en) * 2001-02-14 2002-10-03 Duchon Douglas J. Catheter fluid control system
US20020145122A1 (en) * 2001-02-15 2002-10-10 Systems And Methods For Detection And Systems and methods for detection and measurement of elements in a medium
US6471674B1 (en) 2000-04-21 2002-10-29 Medrad, Inc. Fluid delivery systems, injector systems and methods of fluid delivery
US20020169415A1 (en) * 2001-05-08 2002-11-14 Liebel-Flarsheim Company Remotely powered injector
US20020183616A1 (en) * 2001-05-30 2002-12-05 Acist Medical System, Inc. Medical injection system
US20020198496A1 (en) * 1995-04-20 2002-12-26 Duchon Douglas J. System and method for multiple injection procedures on heart vessels
US20030007891A1 (en) * 1999-08-20 2003-01-09 Wilson Robert F. Apparatus and method of detecting fluid
US20030028145A1 (en) * 1995-04-20 2003-02-06 Duchon Douglas J. Angiographic injector system with multiple processor redundancy
US20030050555A1 (en) * 2001-04-30 2003-03-13 Critchlow Richard G. MR injector system with increased mobility and electromagnetic interference mitigation
US20030122095A1 (en) * 2001-12-07 2003-07-03 Wilson Robert F. Low pressure measurement devices in high pressure environments
US20040030247A1 (en) * 2002-03-13 2004-02-12 Mark Trocki Apparatus, systems and methods for facilitating multiple imaging procedures for a patient
US20040030233A1 (en) * 2000-06-02 2004-02-12 Frazier Michael G. Communication systems for use with magnetic resonance imaging systems
US20040092885A1 (en) * 2000-04-04 2004-05-13 Douglas Duchon Fluid management and component detection system
US20040215490A1 (en) * 1999-04-01 2004-10-28 Duchon Douglas J Integrated medical information management and medical device control system and method
US20050015056A1 (en) * 2000-07-20 2005-01-20 Douglas Duchon Syringe plunger locking mechanism
US6945959B2 (en) 1995-04-20 2005-09-20 Acist Medical Systems, Inc. System for detecting air
US20050268725A1 (en) * 2004-06-04 2005-12-08 Radi Medical Systems Ab Sensor and guide wire assembly
US7047994B2 (en) 2002-05-03 2006-05-23 Acist Medical Systems, Inc. Stopcocks and methods of manufacture thereof
US7101352B2 (en) 2000-05-24 2006-09-05 Acist Medical Systems, Inc. Pressure sleeve assembly
US7128729B2 (en) 1995-04-20 2006-10-31 Acist Medical Systems, Inc. Angiographic injector system and method of use
US20090312740A1 (en) * 2005-12-27 2009-12-17 Acist Medical Systems, Inc. Balloon Inflation Device
US7686800B2 (en) 2000-01-07 2010-03-30 Acist Medical Systems, Inc. Anti-recoil catheter
US7753885B2 (en) 1995-04-20 2010-07-13 Acist Medical Systems, Inc. Angiographic injector and injection method
US20100204574A1 (en) * 1995-04-20 2010-08-12 Duchon Douglas J System and method for multiple injection procedures on heart vessels
US8423125B2 (en) 2004-11-09 2013-04-16 Spectrum Dynamics Llc Radioimaging
US8445851B2 (en) 2004-11-09 2013-05-21 Spectrum Dynamics Llc Radioimaging
US8489176B1 (en) 2000-08-21 2013-07-16 Spectrum Dynamics Llc Radioactive emission detector equipped with a position tracking system and utilization thereof with medical systems and in medical procedures
US8492725B2 (en) 2009-07-29 2013-07-23 Biosensors International Group Ltd. Method and system of optimized volumetric imaging
US8521253B2 (en) 2007-10-29 2013-08-27 Spectrum Dynamics Llc Prostate imaging
US8565860B2 (en) 2000-08-21 2013-10-22 Biosensors International Group, Ltd. Radioactive emission detector equipped with a position tracking system
US8571881B2 (en) 2004-11-09 2013-10-29 Spectrum Dynamics, Llc Radiopharmaceutical dispensing, administration, and imaging
US8606349B2 (en) 2004-11-09 2013-12-10 Biosensors International Group, Ltd. Radioimaging using low dose isotope
US8610075B2 (en) 2006-11-13 2013-12-17 Biosensors International Group Ltd. Radioimaging applications of and novel formulations of teboroxime
US8615405B2 (en) 2004-11-09 2013-12-24 Biosensors International Group, Ltd. Imaging system customization using data from radiopharmaceutical-associated data carrier
US8620046B2 (en) 2000-08-21 2013-12-31 Biosensors International Group, Ltd. Radioactive-emission-measurement optimization to specific body structures
US8644910B2 (en) 2005-07-19 2014-02-04 Biosensors International Group, Ltd. Imaging protocols
US8676292B2 (en) 2004-01-13 2014-03-18 Biosensors International Group, Ltd. Multi-dimensional image reconstruction
US8837793B2 (en) 2005-07-19 2014-09-16 Biosensors International Group, Ltd. Reconstruction stabilizer and active vision
US8894974B2 (en) 2006-05-11 2014-11-25 Spectrum Dynamics Llc Radiopharmaceuticals for diagnosis and therapy
US8909325B2 (en) 2000-08-21 2014-12-09 Biosensors International Group, Ltd. Radioactive emission detector equipped with a position tracking system and utilization thereof with medical systems and in medical procedures
US9040016B2 (en) 2004-01-13 2015-05-26 Biosensors International Group, Ltd. Diagnostic kit and methods for radioimaging myocardial perfusion
US9108047B2 (en) 2010-06-04 2015-08-18 Bayer Medical Care Inc. System and method for planning and monitoring multi-dose radiopharmaceutical usage on radiopharmaceutical injectors
US9275451B2 (en) 2006-12-20 2016-03-01 Biosensors International Group, Ltd. Method, a system, and an apparatus for using and processing multidimensional data
US9316743B2 (en) 2004-11-09 2016-04-19 Biosensors International Group, Ltd. System and method for radioactive emission measurement
US9470801B2 (en) 2004-01-13 2016-10-18 Spectrum Dynamics Llc Gating with anatomically varying durations
US9649436B2 (en) 2011-09-21 2017-05-16 Bayer Healthcare Llc Assembly method for a fluid pump device for a continuous multi-fluid delivery system

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590654A (en) 1993-06-07 1997-01-07 Prince; Martin R. Method and apparatus for magnetic resonance imaging of arteries using a magnetic resonance contrast agent
US5579767A (en) * 1993-06-07 1996-12-03 Prince; Martin R. Method for imaging abdominal aorta and aortic aneurysms
US5417213A (en) 1993-06-07 1995-05-23 Prince; Martin R. Magnetic resonance arteriography with dynamic intravenous contrast agents
EP0650738B1 (en) 1993-10-28 2003-05-02 Medrad, Inc. Multi-patient fluid dispensing
EP1258262A3 (en) 1993-10-28 2002-12-18 Medrad, Inc. Total system for contrast delivery
US5840026A (en) 1994-09-21 1998-11-24 Medrad, Inc. Patient specific dosing contrast delivery systems and methods
US5814015A (en) * 1995-02-24 1998-09-29 Harvard Clinical Technology, Inc. Infusion pump for at least one syringe
US5800396A (en) * 1995-11-15 1998-09-01 Alcon Laboratories, Inc. Surgical cassette adapter
US6336913B1 (en) * 1996-03-29 2002-01-08 Medrad, Inc. Front-loading syringe adapter for front-loading medical injector
DE19621393A1 (en) * 1996-05-28 1997-12-04 Claus H Dr Ing Backes Injection device for magnetic resonance imaging
US5919135A (en) * 1997-02-28 1999-07-06 Lemelson; Jerome System and method for treating cellular disorders in a living being
JP2001509426A (en) * 1997-07-11 2001-07-24 ノボ ノルディスク アクティーゼルスカブ Device for the display of the setting of medical devices
US5924987A (en) * 1997-10-06 1999-07-20 Meaney; James F. M. Method and apparatus for magnetic resonance arteriography using contrast agents
DE19856803C1 (en) * 1998-12-09 2000-06-29 Siemens Ag Drive for positioning actuators in strong magnetic fields, especially magnetic resonance systems, has fluid stepper motors directly in field region driven via networked magnetic valves
WO2001008727A1 (en) 1999-07-30 2001-02-08 Medrad, Inc. Injector systems and syringe adapters for use therewith
US6339718B1 (en) 1999-07-30 2002-01-15 Medrad, Inc. Programmable injector control
US6673033B1 (en) * 1999-11-24 2004-01-06 Medrad, Inc. Injectors, injector systems and injector control
WO2001037904A3 (en) 1999-11-24 2002-01-03 Medrad Inc Injectors, injector systems and injector control
DE10030620A1 (en) * 2000-06-28 2002-01-17 Karlsruhe Forschzent A device for injection of medical preparations with CT / MRI control
US6936030B1 (en) * 2000-11-08 2005-08-30 Medrad, Inc. Injector systems incorporating a base unit attached to a surface
US6881043B2 (en) * 2001-01-28 2005-04-19 Medrad, Inc. Injection apparatus incorporating clamping and squeezing members for pumping liquid through flexible tubing
EP1247538B8 (en) * 2001-04-04 2006-01-04 Swi Barak Disposable tubing set for liquid pump
US7278962B2 (en) 2001-04-12 2007-10-09 Lmt Lammers Medical Technology Gmbh Incubator for newborn and premature patients
EP1249216B1 (en) * 2001-04-12 2003-10-15 Torsten Lönneker-Lammers Incubator for magnetic resonance
US7540854B2 (en) * 2001-07-10 2009-06-02 Medrad, Inc. Method of substituting a first fluid delivery device with a second fluid delivery device
JP3809114B2 (en) * 2001-11-05 2006-08-16 スーガン株式会社 Contrast injection tube for use in the flow path switching device and the device
JP2005512704A (en) 2001-12-21 2005-05-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィKoninklijke Philips Electronics N.V. Mri electronic devices used in the field of equipment
WO2003054567A3 (en) * 2001-12-21 2003-10-30 Koninkl Philips Electronics Nv Mri apparatus with low-frequency cable integrated into the patient carrier
US7109974B2 (en) * 2002-03-05 2006-09-19 Matsushita Electric Industrial Co., Ltd. Remote control system including an on-screen display (OSD)
US7553294B2 (en) * 2002-05-30 2009-06-30 Medrad, Inc. Syringe plunger sensing mechanism for a medical injector
US7553295B2 (en) * 2002-06-17 2009-06-30 Iradimed Corporation Liquid infusion apparatus
US7267661B2 (en) * 2002-06-17 2007-09-11 Iradimed Corporation Non-magnetic medical infusion device
US7404809B2 (en) 2004-10-12 2008-07-29 Iradimed Corporation Non-magnetic medical infusion device
WO2004000392A1 (en) * 2002-06-25 2003-12-31 Medrad, Inc. Devices, systems and methods for injecting multiple fluids into a patient
US7224143B2 (en) * 2002-11-27 2007-05-29 Medrad, Inc. Continuous battery charger system
JP4352120B2 (en) * 2003-03-18 2009-10-28 特許機器株式会社 Nuclear magnetic resonance apparatus
EP1613390A2 (en) 2003-04-08 2006-01-11 Medrad, Inc. Fluid delivery systems, devices and methods for delivery of hazardous fluids
US20050107681A1 (en) * 2003-07-23 2005-05-19 Griffiths David M. Wireless patient monitoring device for magnetic resonance imaging
US7315109B1 (en) 2003-08-15 2008-01-01 Medrad, Inc. Actuators and fluid delivery systems using such actuators
US7632245B1 (en) 2003-08-18 2009-12-15 Medrad, Inc. Devices, systems and methods for delivery of a fluid into a patient during a magnetic resonance procedure
US7734331B2 (en) * 2004-03-02 2010-06-08 General Electric Company Systems, methods and apparatus for preparation, delivery and monitoring of radioisotopes in positron emission tomography
WO2006000415A1 (en) * 2004-06-24 2006-01-05 E-Z-Em, Inc. Hydraulic injection system and injection method
US7507221B2 (en) * 2004-10-13 2009-03-24 Mallinckrodt Inc. Powerhead of a power injection system
US8221356B2 (en) 2004-10-21 2012-07-17 Novo Nordisk A/S Medication delivery system with a detector for providing a signal indicative of an amount of a set and/or ejected dose of drug
CN102512187B (en) 2004-11-16 2015-08-12 拜耳医疗保健公司 The propagation system and method for modeling a medicament patient
JP2006141498A (en) * 2004-11-17 2006-06-08 Medrad Inc Method of injecting contrast agent and lesion plotting system
JP2006141497A (en) * 2004-11-17 2006-06-08 Medrad Inc Lesion plotting method and lesion plotting system
DK2902053T3 (en) * 2004-11-24 2017-11-13 Bayer Healthcare Llc Devices, systems and methods for liquid supply
US7670315B2 (en) * 2005-01-21 2010-03-02 Medrad, Inc. Injectors, injector systems and methods for injecting fluids
US7775966B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. Non-invasive pressure measurement in a fluid adjustable restrictive device
US7927270B2 (en) 2005-02-24 2011-04-19 Ethicon Endo-Surgery, Inc. External mechanical pressure sensor for gastric band pressure measurements
US7699770B2 (en) 2005-02-24 2010-04-20 Ethicon Endo-Surgery, Inc. Device for non-invasive measurement of fluid pressure in an adjustable restriction device
US8152710B2 (en) 2006-04-06 2012-04-10 Ethicon Endo-Surgery, Inc. Physiological parameter analysis for an implantable restriction device and a data logger
US7658196B2 (en) 2005-02-24 2010-02-09 Ethicon Endo-Surgery, Inc. System and method for determining implanted device orientation
US8066629B2 (en) 2005-02-24 2011-11-29 Ethicon Endo-Surgery, Inc. Apparatus for adjustment and sensing of gastric band pressure
US8016744B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. External pressure-based gastric band adjustment system and method
US8870742B2 (en) 2006-04-06 2014-10-28 Ethicon Endo-Surgery, Inc. GUI for an implantable restriction device and a data logger
US7775215B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. System and method for determining implanted device positioning and obtaining pressure data
DE102006006952A1 (en) * 2006-02-14 2007-08-23 E-Z-Em, Inc. MRI system
CA2645732C (en) * 2006-03-20 2014-12-30 Novo Nordisk A/S Electronic module for mechanical medication delivery devices
US7674244B2 (en) 2006-05-23 2010-03-09 Medrad, Inc. Devices, systems and methods for detecting increase fluid levels in tissue
US7475701B2 (en) * 2006-05-24 2009-01-13 Medrad, Inc. Valve systems and injector system including such valve systems
US8139948B2 (en) 2006-06-12 2012-03-20 Acist Medical Systems, Inc. Process and system for providing electrical energy to a shielded medical imaging suite
CN101534713A (en) * 2006-07-17 2009-09-16 梅德拉股份有限公司 Integrated medical imaging systems
US20080061474A1 (en) * 2006-09-11 2008-03-13 Graham Packaging Company, Lp Thermally stabilized adhesion promoting material for use in multilayer articles
JP5062862B2 (en) * 2006-10-11 2012-10-31 マリンクロッド インコーポレイテッド Syringe with a low input power
CN101164637B (en) * 2006-10-16 2011-05-18 重庆融海超声医学工程研究中心有限公司 Ultrasonic therapeutic system capable of reducing electromagnetic interference to imaging equipment
JP5486315B2 (en) 2006-12-29 2014-05-07 メドラッド インコーポレーテッドMedrad,Inc. System for generating a patient-based parameters for medical injection procedure
JP2010514506A (en) * 2006-12-29 2010-05-06 メドラッド インコーポレーテッドMedrad,Inc. Modeling of drug propagation
US8382704B2 (en) * 2006-12-29 2013-02-26 Medrad, Inc. Systems and methods of delivering a dilated slurry to a patient
US9056164B2 (en) * 2007-01-01 2015-06-16 Bayer Medical Care Inc. Radiopharmaceutical administration methods, fluid delivery systems and components thereof
US20080172006A1 (en) * 2007-01-15 2008-07-17 Medrad, Inc. Patency Check Compatible Check Valve And Fluid Delivery System Including The Patency Check Compatible Check Valve
US8105282B2 (en) * 2007-07-13 2012-01-31 Iradimed Corporation System and method for communication with an infusion device
JP5437240B2 (en) 2007-07-17 2014-03-12 メドラッド インコーポレーテッドMedrad,Inc. Evaluation of cardiopulmonary function, and a device for determining the parameters of the procedure of fluid delivery, the system and method
WO2009026060A3 (en) * 2007-08-20 2009-05-28 Mallinckrodt Inc Fluid driven medical injectors
US8187163B2 (en) 2007-12-10 2012-05-29 Ethicon Endo-Surgery, Inc. Methods for implanting a gastric restriction device
JP5295556B2 (en) * 2007-12-12 2013-09-18 株式会社根本杏林堂 Imaging suite for a communication system and the liquid injector
US8100870B2 (en) 2007-12-14 2012-01-24 Ethicon Endo-Surgery, Inc. Adjustable height gastric restriction devices and methods
US8142452B2 (en) 2007-12-27 2012-03-27 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8377079B2 (en) 2007-12-27 2013-02-19 Ethicon Endo-Surgery, Inc. Constant force mechanisms for regulating restriction devices
US8337389B2 (en) 2008-01-28 2012-12-25 Ethicon Endo-Surgery, Inc. Methods and devices for diagnosing performance of a gastric restriction system
US8192350B2 (en) 2008-01-28 2012-06-05 Ethicon Endo-Surgery, Inc. Methods and devices for measuring impedance in a gastric restriction system
US8591395B2 (en) 2008-01-28 2013-11-26 Ethicon Endo-Surgery, Inc. Gastric restriction device data handling devices and methods
US8221439B2 (en) 2008-02-07 2012-07-17 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using kinetic motion
US7844342B2 (en) 2008-02-07 2010-11-30 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using light
US8114345B2 (en) 2008-02-08 2012-02-14 Ethicon Endo-Surgery, Inc. System and method of sterilizing an implantable medical device
US8591532B2 (en) 2008-02-12 2013-11-26 Ethicon Endo-Sugery, Inc. Automatically adjusting band system
US8057492B2 (en) 2008-02-12 2011-11-15 Ethicon Endo-Surgery, Inc. Automatically adjusting band system with MEMS pump
US8034065B2 (en) 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8608484B2 (en) 2008-03-04 2013-12-17 Medrad, Inc. Dynamic anthropomorphic cardiovascular phantom
US8233995B2 (en) 2008-03-06 2012-07-31 Ethicon Endo-Surgery, Inc. System and method of aligning an implantable antenna
US8187162B2 (en) 2008-03-06 2012-05-29 Ethicon Endo-Surgery, Inc. Reorientation port
US8315449B2 (en) * 2008-06-24 2012-11-20 Medrad, Inc. Identification of regions of interest and extraction of time value curves in imaging procedures
US9421330B2 (en) * 2008-11-03 2016-08-23 Bayer Healthcare Llc Mitigation of contrast-induced nephropathy
US20110077719A1 (en) * 2009-09-30 2011-03-31 Broadcom Corporation Electromagnetic power bio-medical unit
WO2013061222A1 (en) * 2011-10-25 2013-05-02 Koninklijke Philips Electronics N.V. Magnetic field data modem
JP6104889B2 (en) * 2012-04-10 2017-03-29 株式会社根本杏林堂 Medical imaging system
US9660336B2 (en) 2013-02-07 2017-05-23 Kevan ANDERSON Systems, devices and methods for transmitting electrical signals through a faraday cage
US9101713B2 (en) 2013-03-12 2015-08-11 Bayer Medical Care Inc. Constant force syringe
US9486573B2 (en) 2013-03-14 2016-11-08 Bayer Healthcare Llc Fluid delivery system and method of fluid delivery to a patient
US9757071B1 (en) 2016-04-29 2017-09-12 Bayer Healthcare Llc System and method for suppressing noise from electrocardiographic (ECG) signals

Citations (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523523A (en) * 1966-06-30 1970-08-11 Contraves Ag Power driven medical injector syringe with electromagnetic coupling means
US3812843A (en) * 1973-03-12 1974-05-28 Lear Siegler Inc Method and apparatus for injecting contrast media into the vascular system
US3880138A (en) * 1973-03-12 1975-04-29 Lear Siegler Inc Method for injecting contrast media into the vascular system
US3888239A (en) * 1974-06-21 1975-06-10 Morton K Rubinstein Fluid injection system
US4006736A (en) * 1974-11-27 1977-02-08 Medrad, Inc. Angiographic injector
US4044757A (en) * 1976-01-14 1977-08-30 The Kendall Company Cholangiography device and method
EP0010550A1 (en) * 1978-09-27 1980-05-14 Carl Schenck Ag Transport container mounted on castors
US4502488A (en) * 1983-01-13 1985-03-05 Allied Corporation Injection system
US4585009A (en) * 1983-02-28 1986-04-29 E. R. Squibb & Sons, Inc. Strontium-rubidium infusion pump with in-line dosimetry
JPS61155846A (en) * 1984-12-28 1986-07-15 Toshiba Corp Magnetic resonance imaging device
US4613328A (en) * 1984-10-22 1986-09-23 Cecil Boyd Bio-medical injector apparatus
US4619653A (en) * 1979-04-27 1986-10-28 The Johns Hopkins University Apparatus for detecting at least one predetermined condition and providing an informational signal in response thereto in a medication infusion system
US4677980A (en) * 1984-06-06 1987-07-07 Medrad, Inc. Angiographic injector and angiographic syringe for use therewith
US4695271A (en) * 1986-02-03 1987-09-22 Liebel-Flarsheim Company Angiographic injector
US4840620A (en) * 1986-04-07 1989-06-20 Terumo Corporation Portable pump for infusing medicine into a living body
JPH01165010A (en) * 1987-12-21 1989-06-29 Mitsubishi Electric Corp Composite type magnetic head
US4854324A (en) * 1984-01-31 1989-08-08 Medrad, Inc. Processor-controlled angiographic injector device
JPH01303139A (en) * 1988-06-01 1989-12-07 Toshiba Corp Magnetic resonance imaging device
US4981137A (en) * 1988-04-28 1991-01-01 Hitachi, Ltd. Magnetic resonance imaging apparatus
US5030201A (en) * 1989-11-24 1991-07-09 Aubrey Palestrant Expandable atherectomy catheter device
EP0495287A2 (en) * 1991-01-16 1992-07-22 Praxair Technology, Inc. Magnetic resonance imaging
US5134373A (en) * 1988-03-31 1992-07-28 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus employing optical viewing screen
EP0518100A1 (en) * 1991-06-14 1992-12-16 Spectrospin Ag Servo drive
JPH0584296A (en) * 1991-05-14 1993-04-06 Nemoto Kiyourindou:Kk Injection apparatus for medical use
US5236417A (en) * 1992-09-22 1993-08-17 Utah Pioneer Medical, Inc. Cholangiography catheter apparatus and method
US5244461A (en) * 1989-03-10 1993-09-14 Graseby Medical Limited Infusion pump with occlusion sensitive shutoff
US5269762A (en) * 1992-04-21 1993-12-14 Sterling Winthrop, Inc. Portable hand-held power assister device
US5300031A (en) * 1991-06-07 1994-04-05 Liebel-Flarsheim Company Apparatus for injecting fluid into animals and disposable front loadable syringe therefor
US5342298A (en) * 1992-07-31 1994-08-30 Advanced Cardiovascular Systems, Inc. Automated fluid pressure control system
US5352979A (en) * 1992-08-07 1994-10-04 Conturo Thomas E Magnetic resonance imaging with contrast enhanced phase angle reconstruction
US5354273A (en) * 1992-12-14 1994-10-11 Mallinckrodt Medical, Inc. Delivery apparatus with pressure controlled delivery
US5357959A (en) * 1993-04-16 1994-10-25 Praxair Technology, Inc. Altered dipole moment magnetic resonance imaging method
US5411485A (en) * 1993-04-19 1995-05-02 Hyprotek Catheter access system and method
US5417213A (en) * 1993-06-07 1995-05-23 Prince; Martin R. Magnetic resonance arteriography with dynamic intravenous contrast agents
JPH07178169A (en) * 1993-12-24 1995-07-18 Nemoto Kyorindo:Kk Mri injecting device
US5464014A (en) * 1991-10-03 1995-11-07 Sugan Company Limited Display device for bioelectrical and biophysical phenomena
US5472403A (en) * 1993-05-11 1995-12-05 The Regents Of The University Of California Device for automatic injection of radionuclide
JPH11223943A (en) * 1998-02-04 1999-08-17 Nippon Synthetic Chem Ind Co Ltd:The A resist pattern forming method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8203621A (en) * 1982-09-20 1984-04-16 Philips Nv With nuclear magnetic resonance tomography faraday cage.
US4651099A (en) 1984-12-17 1987-03-17 Nmr Associates, Ltd. 1983-I Scan room for magnetic resonance imager
US5038785A (en) 1985-08-09 1991-08-13 Picker International, Inc. Cardiac and respiratory monitor with magnetic gradient noise elimination
US4694837A (en) 1985-08-09 1987-09-22 Picker International, Inc. Cardiac and respiratory gated magnetic resonance imaging
US4737712A (en) * 1986-12-31 1988-04-12 General Electric Company Isolated power transfer and patient monitoring system with interference rejection useful with NMR apparatus
JPH01223943A (en) 1988-03-01 1989-09-07 Fuji Electric Co Ltd Receiving device of nuclear magnetic resonance tomographic imaging apparatus
JPH01165010U (en) * 1988-05-09 1989-11-17
US4885538A (en) * 1988-08-19 1989-12-05 The Regents Of The University Of California Low data rate low noise serial digital communication link for magnetic resonance imaging systems
US4901141A (en) 1988-12-05 1990-02-13 Olympus Corporation Fiberoptic display for a video image
US4893082A (en) 1989-02-13 1990-01-09 Letcher Iii John H Noise suppression in magnetic resonance imaging
US5027824A (en) * 1989-12-01 1991-07-02 Edmond Dougherty Method and apparatus for detecting, analyzing and recording cardiac rhythm disturbances
US5323776A (en) 1992-10-15 1994-06-28 Picker International, Inc. MRI compatible pulse oximetry system

Patent Citations (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523523A (en) * 1966-06-30 1970-08-11 Contraves Ag Power driven medical injector syringe with electromagnetic coupling means
US3812843A (en) * 1973-03-12 1974-05-28 Lear Siegler Inc Method and apparatus for injecting contrast media into the vascular system
US3880138A (en) * 1973-03-12 1975-04-29 Lear Siegler Inc Method for injecting contrast media into the vascular system
US3888239A (en) * 1974-06-21 1975-06-10 Morton K Rubinstein Fluid injection system
US4006736A (en) * 1974-11-27 1977-02-08 Medrad, Inc. Angiographic injector
US4044757A (en) * 1976-01-14 1977-08-30 The Kendall Company Cholangiography device and method
EP0010550A1 (en) * 1978-09-27 1980-05-14 Carl Schenck Ag Transport container mounted on castors
US4619653A (en) * 1979-04-27 1986-10-28 The Johns Hopkins University Apparatus for detecting at least one predetermined condition and providing an informational signal in response thereto in a medication infusion system
US4502488A (en) * 1983-01-13 1985-03-05 Allied Corporation Injection system
US4585009A (en) * 1983-02-28 1986-04-29 E. R. Squibb & Sons, Inc. Strontium-rubidium infusion pump with in-line dosimetry
US4854324A (en) * 1984-01-31 1989-08-08 Medrad, Inc. Processor-controlled angiographic injector device
US4677980A (en) * 1984-06-06 1987-07-07 Medrad, Inc. Angiographic injector and angiographic syringe for use therewith
US4613328A (en) * 1984-10-22 1986-09-23 Cecil Boyd Bio-medical injector apparatus
JPS61155846A (en) * 1984-12-28 1986-07-15 Toshiba Corp Magnetic resonance imaging device
US4695271A (en) * 1986-02-03 1987-09-22 Liebel-Flarsheim Company Angiographic injector
US4840620A (en) * 1986-04-07 1989-06-20 Terumo Corporation Portable pump for infusing medicine into a living body
JPH01165010A (en) * 1987-12-21 1989-06-29 Mitsubishi Electric Corp Composite type magnetic head
US5134373A (en) * 1988-03-31 1992-07-28 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus employing optical viewing screen
US4981137A (en) * 1988-04-28 1991-01-01 Hitachi, Ltd. Magnetic resonance imaging apparatus
JPH01303139A (en) * 1988-06-01 1989-12-07 Toshiba Corp Magnetic resonance imaging device
US5244461A (en) * 1989-03-10 1993-09-14 Graseby Medical Limited Infusion pump with occlusion sensitive shutoff
US5030201A (en) * 1989-11-24 1991-07-09 Aubrey Palestrant Expandable atherectomy catheter device
EP0495287A2 (en) * 1991-01-16 1992-07-22 Praxair Technology, Inc. Magnetic resonance imaging
JPH0584296A (en) * 1991-05-14 1993-04-06 Nemoto Kiyourindou:Kk Injection apparatus for medical use
US5300031A (en) * 1991-06-07 1994-04-05 Liebel-Flarsheim Company Apparatus for injecting fluid into animals and disposable front loadable syringe therefor
EP0518100A1 (en) * 1991-06-14 1992-12-16 Spectrospin Ag Servo drive
US5464014A (en) * 1991-10-03 1995-11-07 Sugan Company Limited Display device for bioelectrical and biophysical phenomena
US5269762A (en) * 1992-04-21 1993-12-14 Sterling Winthrop, Inc. Portable hand-held power assister device
US5342298A (en) * 1992-07-31 1994-08-30 Advanced Cardiovascular Systems, Inc. Automated fluid pressure control system
US5352979A (en) * 1992-08-07 1994-10-04 Conturo Thomas E Magnetic resonance imaging with contrast enhanced phase angle reconstruction
US5236417A (en) * 1992-09-22 1993-08-17 Utah Pioneer Medical, Inc. Cholangiography catheter apparatus and method
US5354273A (en) * 1992-12-14 1994-10-11 Mallinckrodt Medical, Inc. Delivery apparatus with pressure controlled delivery
US5357959A (en) * 1993-04-16 1994-10-25 Praxair Technology, Inc. Altered dipole moment magnetic resonance imaging method
US5411485A (en) * 1993-04-19 1995-05-02 Hyprotek Catheter access system and method
US5472403A (en) * 1993-05-11 1995-12-05 The Regents Of The University Of California Device for automatic injection of radionuclide
US5417213A (en) * 1993-06-07 1995-05-23 Prince; Martin R. Magnetic resonance arteriography with dynamic intravenous contrast agents
JPH07178169A (en) * 1993-12-24 1995-07-18 Nemoto Kyorindo:Kk Mri injecting device
JPH11223943A (en) * 1998-02-04 1999-08-17 Nippon Synthetic Chem Ind Co Ltd:The A resist pattern forming method

Non-Patent Citations (10)

* Cited by examiner, † Cited by third party
Title
"An Infusion Pump that Works in MRI", Anesth Analg 1993: 77: p. 645, Lettersa to the Editor.
"Detection of Acute Avascular Necrosis of the Femoral Head in Dogs: Dynamic Contrast-Enhanced MR Imaging vs Spin-Echo and Stir Sequences", AJR: 159, pp. 1255-1261, Dec. 1992.
"InVitro Evaluation of a Mechanical Injector for Infusion of Magnetic Resonance Contrast Media", Investigative Radiology, vol. 26/No. 8, Aug. 1991, pp. 748-751.
"Market Scan", Diagnostic Imaging , Sep. 1988, p. 61.
"Medrad targets market for MRI", Allison Hargraves, Pittsburgh Business Times, V7, n18, p.1(2), Dec. 21, 1987.
An Infusion Pump that Works in MRI , Anesth Analg 1993: 77: p. 645, Lettersa to the Editor. *
Detection of Acute Avascular Necrosis of the Femoral Head in Dogs: Dynamic Contrast Enhanced MR Imaging vs Spin Echo and Stir Sequences , AJR: 159, pp. 1255 1261, Dec. 1992. *
InVitro Evaluation of a Mechanical Injector for Infusion of Magnetic Resonance Contrast Media , Investigative Radiology, vol. 26/No. 8, Aug. 1991, pp. 748 751. *
Market Scan , Diagnostic Imaging , Sep. 1988, p. 61. *
Medrad targets market for MRI , Allison Hargraves, Pittsburgh Business Times, V7, n18, p.1(2), Dec. 21, 1987. *

Cited By (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7128729B2 (en) 1995-04-20 2006-10-31 Acist Medical Systems, Inc. Angiographic injector system and method of use
US8082018B2 (en) 1995-04-20 2011-12-20 Acist Medical Systems, Inc. System and method for multiple injection procedures on heart vessels
US7662124B2 (en) 1995-04-20 2010-02-16 Acist Medical Systems, Inc. System and method for multiple injection procedures on heart vessels
US7357785B2 (en) 1995-04-20 2008-04-15 Acist Medical Systems, Inc. System for detecting air
US20100204574A1 (en) * 1995-04-20 2010-08-12 Duchon Douglas J System and method for multiple injection procedures on heart vessels
US20030028145A1 (en) * 1995-04-20 2003-02-06 Duchon Douglas J. Angiographic injector system with multiple processor redundancy
US7753885B2 (en) 1995-04-20 2010-07-13 Acist Medical Systems, Inc. Angiographic injector and injection method
US7153288B2 (en) 1995-04-20 2006-12-26 Acist Medical Systems, Inc. System for detecting air
US20020198496A1 (en) * 1995-04-20 2002-12-26 Duchon Douglas J. System and method for multiple injection procedures on heart vessels
US6945959B2 (en) 1995-04-20 2005-09-20 Acist Medical Systems, Inc. System for detecting air
US7267666B1 (en) 1995-04-20 2007-09-11 Acist Medical Systems, Inc. Angiographic injector system with multiple processor redundancy
US20050267363A1 (en) * 1995-04-20 2005-12-01 Doug Duchon Dual port syringe
US7959605B2 (en) 1995-04-20 2011-06-14 Acist Medical Systems, Inc. Angiographic injector and injection method
US20100249587A1 (en) * 1995-04-20 2010-09-30 Acist Medical Systems, Inc. Angiographic injector and injection method
US20070055202A1 (en) * 1995-04-20 2007-03-08 Acist Medical Systems, Inc. System for detecting air
US6304246B1 (en) * 1997-08-25 2001-10-16 Siemens Aktiengesellschaft Input device for shifting a marker on a monitor screen
US20040215490A1 (en) * 1999-04-01 2004-10-28 Duchon Douglas J Integrated medical information management and medical device control system and method
US20030007891A1 (en) * 1999-08-20 2003-01-09 Wilson Robert F. Apparatus and method of detecting fluid
US20020117668A1 (en) * 1999-11-30 2002-08-29 Jong-Sung Kim X-ray image sensor and method for fabricating the same
US7686800B2 (en) 2000-01-07 2010-03-30 Acist Medical Systems, Inc. Anti-recoil catheter
US20040092885A1 (en) * 2000-04-04 2004-05-13 Douglas Duchon Fluid management and component detection system
US7169135B2 (en) 2000-04-04 2007-01-30 Acist Medical Systems, Inc. Fluid management and component detection system
US6699219B2 (en) 2000-04-21 2004-03-02 Medrad, Inc. Fluid delivery systems, injector systems and methods of fluid delivery
US6471674B1 (en) 2000-04-21 2002-10-29 Medrad, Inc. Fluid delivery systems, injector systems and methods of fluid delivery
US6972001B2 (en) 2000-04-21 2005-12-06 Medrad, Inc. Fluid delivery system having pump systems, check valves and a removable patient interface
US7101352B2 (en) 2000-05-24 2006-09-05 Acist Medical Systems, Inc. Pressure sleeve assembly
US20040030233A1 (en) * 2000-06-02 2004-02-12 Frazier Michael G. Communication systems for use with magnetic resonance imaging systems
US7283860B2 (en) 2000-06-02 2007-10-16 Medrad, Inc. Communication systems for use with magnetic resonance imaging systems
US6704592B1 (en) 2000-06-02 2004-03-09 Medrad, Inc. Communication systems for use with magnetic resonance imaging systems
US7221159B2 (en) 2000-06-02 2007-05-22 Medrad, Inc. Communication systems for use with magnetic resonance imaging systems
US7566326B2 (en) 2000-07-20 2009-07-28 Acist Medical Systems, Inc. Syringe plunger locking mechanism
US20050015056A1 (en) * 2000-07-20 2005-01-20 Douglas Duchon Syringe plunger locking mechanism
US8909325B2 (en) 2000-08-21 2014-12-09 Biosensors International Group, Ltd. Radioactive emission detector equipped with a position tracking system and utilization thereof with medical systems and in medical procedures
US8565860B2 (en) 2000-08-21 2013-10-22 Biosensors International Group, Ltd. Radioactive emission detector equipped with a position tracking system
US8620046B2 (en) 2000-08-21 2013-12-31 Biosensors International Group, Ltd. Radioactive-emission-measurement optimization to specific body structures
US9370333B2 (en) 2000-08-21 2016-06-21 Biosensors International Group, Ltd. Radioactive-emission-measurement optimization to specific body structures
US8489176B1 (en) 2000-08-21 2013-07-16 Spectrum Dynamics Llc Radioactive emission detector equipped with a position tracking system and utilization thereof with medical systems and in medical procedures
US7566320B2 (en) 2001-02-14 2009-07-28 Acist Medical Systems, Inc. Fluid injector system
US20020143294A1 (en) * 2001-02-14 2002-10-03 Duchon Douglas J. Catheter fluid control system
US8079999B2 (en) 2001-02-14 2011-12-20 Acist Medical Systems, Inc. Fluid injector system
US20080183131A1 (en) * 2001-02-14 2008-07-31 Acist Medical Systems, Inc. Catheter Fluid Control System
US20020115933A1 (en) * 2001-02-14 2002-08-22 Douglas Duchon Fluid injector system
US8262610B2 (en) * 2001-02-14 2012-09-11 Acist Medical Systems, Inc. Catheter fluid control system
US20100004533A1 (en) * 2001-02-14 2010-01-07 Acist Medical Systems, Inc. Fluid injector system
US6969865B2 (en) 2001-02-15 2005-11-29 Acist Medical Systems, Inc. Systems and methods for detection and measurement of elements in a medium
US20020145122A1 (en) * 2001-02-15 2002-10-10 Systems And Methods For Detection And Systems and methods for detection and measurement of elements in a medium
US20030050555A1 (en) * 2001-04-30 2003-03-13 Critchlow Richard G. MR injector system with increased mobility and electromagnetic interference mitigation
US20090045812A1 (en) * 2001-05-08 2009-02-19 Liebel-Flarsheim Company Method of Operation for a Magnetic Resonance Imaging Suite
US20080068011A1 (en) * 2001-05-08 2008-03-20 Liebel-Flarsheim Company Method of Operation for a Magnetic Resonance Imaging Suite
US20110237932A1 (en) * 2001-05-08 2011-09-29 Liebel-Flarsheim Company Method of Operation for a Magnetic Resonance Imaging Suite
US7512434B2 (en) * 2001-05-08 2009-03-31 Liebel-Flarsheim Company Remotely powered injector
US20020169415A1 (en) * 2001-05-08 2002-11-14 Liebel-Flarsheim Company Remotely powered injector
US7772848B2 (en) 2001-05-08 2010-08-10 Liebel-Flarsheim Co. Method of operation for a magnetic resonance imaging suite
US7991451B2 (en) 2001-05-08 2011-08-02 Liebel-Flarsheim Co. Method of operation for a magnetic resonance imaging suite
US20090076383A1 (en) * 2001-05-30 2009-03-19 Acist Medical Systems, Inc. Medical injection system
US20020183616A1 (en) * 2001-05-30 2002-12-05 Acist Medical System, Inc. Medical injection system
US7308300B2 (en) 2001-05-30 2007-12-11 Acist Medical Systems, Inc. Medical injection system
US20030122095A1 (en) * 2001-12-07 2003-07-03 Wilson Robert F. Low pressure measurement devices in high pressure environments
US8590555B2 (en) 2001-12-07 2013-11-26 Acist Medical Systems, Inc. Low pressure measurement devices in high pressure environments
US7905246B2 (en) 2001-12-07 2011-03-15 Acist Medical Systems, Inc. Low pressure measurement devices in high pressure environments
US20100019178A1 (en) * 2001-12-07 2010-01-28 Acist Medical Systems, Inc. Low pressure measurement devices in high pressure environments
US7617837B2 (en) 2001-12-07 2009-11-17 Acist Medical Systems, Inc. Low pressure measurement devices in high pressure environments
US7389788B2 (en) 2001-12-07 2008-06-24 Acist Medical Systems, Inc. Low pressure measurement devices in high pressure environments
US20060180202A1 (en) * 2001-12-07 2006-08-17 Acist Medical Systems, Inc. Low pressure measurement devices in high pressure environments
US20110114197A1 (en) * 2001-12-07 2011-05-19 Acist Medical Systems, Inc. Low pressure measurement devices in high pressure environments
US20040030247A1 (en) * 2002-03-13 2004-02-12 Mark Trocki Apparatus, systems and methods for facilitating multiple imaging procedures for a patient
US7047994B2 (en) 2002-05-03 2006-05-23 Acist Medical Systems, Inc. Stopcocks and methods of manufacture thereof
US9040016B2 (en) 2004-01-13 2015-05-26 Biosensors International Group, Ltd. Diagnostic kit and methods for radioimaging myocardial perfusion
US9470801B2 (en) 2004-01-13 2016-10-18 Spectrum Dynamics Llc Gating with anatomically varying durations
US8676292B2 (en) 2004-01-13 2014-03-18 Biosensors International Group, Ltd. Multi-dimensional image reconstruction
US7222539B2 (en) 2004-06-04 2007-05-29 Radi Medical Systems Ab Sensor and guide wire assembly
US20050268725A1 (en) * 2004-06-04 2005-12-08 Radi Medical Systems Ab Sensor and guide wire assembly
US9316743B2 (en) 2004-11-09 2016-04-19 Biosensors International Group, Ltd. System and method for radioactive emission measurement
US8606349B2 (en) 2004-11-09 2013-12-10 Biosensors International Group, Ltd. Radioimaging using low dose isotope
US8445851B2 (en) 2004-11-09 2013-05-21 Spectrum Dynamics Llc Radioimaging
US8615405B2 (en) 2004-11-09 2013-12-24 Biosensors International Group, Ltd. Imaging system customization using data from radiopharmaceutical-associated data carrier
US8586932B2 (en) 2004-11-09 2013-11-19 Spectrum Dynamics Llc System and method for radioactive emission measurement
US8620679B2 (en) 2004-11-09 2013-12-31 Biosensors International Group, Ltd. Radiopharmaceutical dispensing, administration, and imaging
US8423125B2 (en) 2004-11-09 2013-04-16 Spectrum Dynamics Llc Radioimaging
US8571881B2 (en) 2004-11-09 2013-10-29 Spectrum Dynamics, Llc Radiopharmaceutical dispensing, administration, and imaging
US8748826B2 (en) 2004-11-17 2014-06-10 Biosensor International Group, Ltd. Radioimaging methods using teboroxime and thallium
US8837793B2 (en) 2005-07-19 2014-09-16 Biosensors International Group, Ltd. Reconstruction stabilizer and active vision
US8644910B2 (en) 2005-07-19 2014-02-04 Biosensors International Group, Ltd. Imaging protocols
US20090312740A1 (en) * 2005-12-27 2009-12-17 Acist Medical Systems, Inc. Balloon Inflation Device
US8758294B2 (en) 2005-12-27 2014-06-24 Acist Medical Systems, Inc. Balloon inflation device
US8894974B2 (en) 2006-05-11 2014-11-25 Spectrum Dynamics Llc Radiopharmaceuticals for diagnosis and therapy
US8610075B2 (en) 2006-11-13 2013-12-17 Biosensors International Group Ltd. Radioimaging applications of and novel formulations of teboroxime
US9275451B2 (en) 2006-12-20 2016-03-01 Biosensors International Group, Ltd. Method, a system, and an apparatus for using and processing multidimensional data
US8521253B2 (en) 2007-10-29 2013-08-27 Spectrum Dynamics Llc Prostate imaging
US8492725B2 (en) 2009-07-29 2013-07-23 Biosensors International Group Ltd. Method and system of optimized volumetric imaging
US8748827B2 (en) 2009-07-29 2014-06-10 Biosensors International Group, Ltd. Method and system of optimized volumetric imaging
US9108047B2 (en) 2010-06-04 2015-08-18 Bayer Medical Care Inc. System and method for planning and monitoring multi-dose radiopharmaceutical usage on radiopharmaceutical injectors
US9463335B2 (en) 2010-06-04 2016-10-11 Bayer Healthcare Llc System and method for planning and monitoring multi-dose radiopharmaceutical usage on radiopharmaceutical injectors
US9649436B2 (en) 2011-09-21 2017-05-16 Bayer Healthcare Llc Assembly method for a fluid pump device for a continuous multi-fluid delivery system
US9700672B2 (en) 2011-09-21 2017-07-11 Bayer Healthcare Llc Continuous multi-fluid pump device, drive and actuating system and method

Also Published As

Publication number Publication date Type
EP0968733A3 (en) 2000-10-04 application
EP0655220A1 (en) 1995-05-31 application
EP0655220B2 (en) 2005-09-14 grant
DE69417155T2 (en) 1999-08-12 grant
DE69417155D1 (en) 1999-04-22 grant
EP0864295A3 (en) 1999-03-10 application
JPH07204176A (en) 1995-08-08 application
JP2752909B2 (en) 1998-05-18 grant
EP0968733A2 (en) 2000-01-05 application
DE69417155T3 (en) 2006-11-09 grant
EP0655220B1 (en) 1999-03-17 grant
EP0864295A2 (en) 1998-09-16 application
USRE37602E1 (en) 2002-03-26 grant
US5494036A (en) 1996-02-27 grant

Similar Documents

Publication Publication Date Title
US5916162A (en) Invasive device for use in a magnetic resonance imaging apparatus
US5740222A (en) Radiation computed tomography apparatus
US5445162A (en) Apparatus and method for recording an electroencephalogram during magnetic resonance imaging
US5879285A (en) Aligning means attaching a cable in an imaging apparatus
US4763075A (en) Electro-optical isolator for magnetic resonance tomography
US5357958A (en) Interventional MRI system and RF coils therefore
US5429133A (en) Radiation responsive laparoscopic instrument
US5892359A (en) Gradient coil apparatus and magnetic resonance imaging apparatus
US5781407A (en) Portable personal computers with multi-directional infrared communication
US4572198A (en) Catheter for use with NMR imaging systems
US4794338A (en) Balanced self-shielded gradient coils
US20090149735A1 (en) Integrated external beam radiotherapy and mri system
US5491510A (en) System and method for simultaneously viewing a scene and an obscured object
US6774929B1 (en) Shielded video projection system for MRI
US4853774A (en) Auxiliary light apparatus for borescope
US4240439A (en) Method of obtaining information of a specified or target area of a living body near its skin surface by the application of a nuclear magnetic resonance phenomenon
US20090209846A1 (en) Apparatus and method for real-time motion-compensated magnetic resonance imaging
US5184074A (en) Real-time mr imaging inside gantry room
US6801195B2 (en) Display device
WO2000001442A2 (en) Transcutaneous energy transfer device with magnetic field protected components in secondary coil
US6219245B1 (en) Electrically isolated power switching device mounting assembly for EMI reduction
US5323776A (en) MRI compatible pulse oximetry system
US4615330A (en) Noise suppressor for electronic endoscope
US20060273795A1 (en) Magnetic resonance imaging having radiation compatible radiofrequency coils
US7313429B2 (en) Rotating and pivoting magnet for magnetic navigation

Legal Events

Date Code Title Description
AS Assignment

Owner name: MEDRAD, INC., PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEDOLA, SALVATORE J.;REEL/FRAME:009789/0125

Effective date: 19990209

Owner name: MEDRAD, INC., PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NEWELL, GORDON C.;REEL/FRAME:009787/0698

Effective date: 19990216