Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3702935 A
Publication typeGrant
Publication dateNov 14, 1972
Filing dateOct 13, 1971
Priority dateOct 13, 1971
Publication numberUS 3702935 A, US 3702935A, US-A-3702935, US3702935 A, US3702935A
InventorsLewis S Carey, George L Mansour
Original AssigneeLitton Medical Products
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mobile fluoroscopic unit for bedside catheter placement
US 3702935 A
Abstract
The invention relates to a mobile fluoroscopic unit in the form of a four wheeled cart for facilitating bedside catheter placement. The unit is equipped with integrated X-ray and television viewing apparatus which permits the visualization and accurate positioning of vascular catheters.
Images(2)
Previous page
Next page
Description  (OCR text may contain errors)

United States Patent Carey et al. 7

[ MOBILE FLUOROSCOPIC UNIT FOR BEDSIDE CATHETER PLACEMENT [72] Inventors: Lewis S. Carey, London, Ontario,

Canada; George L. Mansour, Minneapolis, Minn.

[73] Assignee: Litton Medical Products, Inc., Des

Plaines, Ill.

[22] Filed: Oct. 13, 1971 [21] Appl. No.: 188,967

[52] US. Cl. ..250/58, 250/54, 250/65 R [51] Int. Cl. ..G01n 23/04 [58] Field of Search ..250/50, 54, 58, 59, 65 R [56] References Cited UNITED STATES PATENTS 3,515,870 6/1970 Marquis ..250/65 NOV. 14, 1972 3,555,276 1/1971 Endesfelder et a1. ..250/58 Primary Examiner-William F. Lindquist Attorney-Alan C. Rose, Robert M. Vargo, Walter R. Thiel and Alfred B. Levine [57] ABSTRACT The invention relates to a mobile fluoroscopic unit in the form of a four wheeled can for facilitating bedside catheter placement. The unit is equipped with integrated X-ray and television viewing apparatus which permits the visualization and accurate positioning of vascular catheters.

2 Claim, 3 Drawing Figures MOBILE FLUOROSCOPIC UNIT FOR BEDSIDE CATHETER PLACEMENT The invention relates to a mobile fluoroscopic unit in the form of a four wheeled cart for facilitating bedside catheter placement. The unit is equipped with integrated X-ray and television viewing apparatus which permits the visualization and accurate positioning of vascular catheters. Emergency or elective catherization of the vascular system at the bedside of a patient is becoming increasingly necessary for diagnostic and therapeutic purposes. For example, in instances where a patient is to be administered to or treated with a pacemaker unit, the pacemaker wires are fed through the veins in the patients right arm or neck to his heat. At the shoulder region there is a fork in the vein with one branch leading to the heat and the other branch leading to the brain. It is thus necessary to be able to some how view the progress of the wires through the vein because there is no other way of determining whether the wires will take the correct route to the heart.

It is presently hospital procedure to wheel the patient to a specially equipped X-ray room where the feeding of the pacemaker wires is viewed on a television screen which is operably attached to the X-ray machine. Although this hospital procedure is technically effective, a serious drawback or disadvantage of it is the time it takes to fetch the patient from his room and deliver him to the X-ray room. X-ray rooms contain expensive equipment and the number of such rooms in a hospital are thus necessarily limited. A patients room in a large hospital might very well be located a relatively great distance from a suitably equipped X*ray room and the time required to get him there could prove fatal or very damaging.

The present invention constitutes a portable unit, in the form of a four-wheeled cart, which is equipped with integrated X-ray and television viewing apparatus. In more technical terms the invention is a mobil cart for the visualization and accurate positioning of vascular catheters or, in still other terms, a mobile image intensifier unit for the fluoroscopic visualization of intravascular procedures or vascular catherization.

The inventive concept involves, in addition to providing the X-ray and television equipment for the cart, the sizing and shaping of the cart to make it practical and suitable for bedside use. In particular the can has (i) a height approximately equal to hospital bed height so that a patient may be moved easily from the bed to the cart, (2) a length of somewhat under 3 feet, which is'approximately half of the height of an average adult, to allow the cart to be limited to a practical size by permitting the patients body to be supported jointly by the cart and by his bed, and (3) a movable support for the patients right arm which support can be stored in a retracted or out-of-the-way position so it does not project laterally from the cart while the cart is being wheeled through the hospital halls. The cart size, with respect to its length and width dimensions, thus facilitates the easy transportation of the cart through hospital corridors and elevators and its convenient positioning in a small or crowded hospital room.

A main object of the invention, therefore, is to provide new and improved apparatus for the visualization and accurate positioning of vascular catheters at the bedside and surgery.

Other objects of the invention will become apparent from the following specification, drawings and appended claims. t i

In the drawings:

FIG. 1 is a perspective view of the mobile cart embodying the invention, the cart having a panel portion thereof shown broken away to reveal equipment inside the cart;

FIG. 2 is a different perspective view of the cart illustrated in FIG. 1, the cart being shown in use in a hospital room environment with a. patient lying on the cart and two doctors in attendance; and

FIG. 3 is a fragmentary perspective view of the carts retractable support for supporting a patients right arm while the pacemaker wires are being inserted in the artery thereof.

Referring to the drawings, the cart as shown in FIG. I has a rectangularly shaped paneled body 10 mounted on four wheels which include a pair of front wheels 12 and a pair of swiveled rear wheels 13. The top side 16 of the body 10 is approximately 33 by 27 inches and is cushioned to provide a comfortable support for the upper portion of a persons body. The height of the top side 16 relative to the floor is approximately 35 inches which is a generally standard height for hospital beds.

A boom 20 having a vertically extending leg 21 and an attached upwardly inclined arm 22 is mounted on one side of the body 10. Boom 20 has a horizontally extending arm 24 which is pivotally attached to the boom 20 at the junctions of the legs 21 and 22 thereof for movement in a horizontal plane. Mounted on the outer end of arm 24 for pivotal movement about a vertical axis is a television receiver 26. The position of boom 20 is longitudinally adjustable by reason of being mounted in and relative to a slot construction 27 in the side wall of the cart. Slot 27 is protected from stray radiation by sliding panels which are not shown.

At the upper end of the boom arm 22 is mounted an X-ray head 28 which provides a source of X-rays and is rotationally adjustable about a horizontal axis with an adjusting mechanism 30 to provide for fine alignment with the image tube of the intensifier assembly 40.

Within the inner confines of the rectangularly shaped body 10 is known apparatus of the type disclosed in a patent to R. A. Marquis, US. Pat. No. 3,515,870, issued June 2, 1970, titled X-Ray System for Superim posing the Image of a Reference Object and an X-Ray Image. Briefly, this apparatus comprises a fluoroscopic device which includes an image intensifier tube. The image intensifier tube in turn includes a fluorescent screen comprising a photon emitting phospher in intimate contact with a photoelectric element which is adapted to emit electrons in response to the photon energy emitted by the phospher. At the opposite end of the image intensifier tube there is a second fluorescent screen which converts electrons striking its outer surface into photon energy. A conventional TV camera with a suitable lens system between the camera and the image intensifier tube is provided and the camera is electrically connected to the TV viewer 26. A control panel 31 for all the electrical apparatus embodied in the cart is mounted as illustrated in one of the side panels of the cart body portion 10.

Internally of the cart is a power supply contained in a box 36 and television camera control equipment contained in a box 38. Also incorporated internally of the cart is an image intesifier assembly 40 and a close coupled television camera assembly 42 which is electrically connected to the TV receiver 26.

At the top of the body portion of the can, and at one end and at one side thereof, is an arm support 44 which is mounted for pivotal movement about a vertical axis. The arm support has a position within the confines of the edges of the top side 16 when the car t is idle or being transported but is swingable out to the position illustrated in FIGS. 2 and 3 when the cart is being used in connection with treating a patient. Arm support 44 is provided with a detent ratchet arrangement (not shown) which maintains the support at increments up to 90.

The cart is usable for the emergency and elective vascular catherization in humans anywhere in the hospital. Specifically, it can be used at a patients bedside, in an emergency room and in an operating room. In a cardiac emergency requiring vascular catherization the cart is quickly wheeled to a patients room and to one side of his bed 45. Other related uses for the cart are (l) the placement of a catheter in the pulmonary trunk via the jugular, cubital or sub-clavian vein to monitor pressure of the failing heart as an aid to determining appropriate therapy and (2) the placement of vena cava filter for emboli entrapment.

We claim:

1. A mobile cart for the fluoroscopic visualization of vascular catherization comprising a rectangularly shaped paneled body portion having a planar top side, wheel means supporting said body portion, a vertically extending support means attached to said body portion, an X-ray head providing a source of X-rays mounted on said support member, an electronic image intensifier tube assembly mounted internally of said body portion in alignment with said X-ray head, said assembly including a television camera, a television receiver mounted on said support means and being electrically connected to said tube assembly, said top side having an elevation of approximately three feet, and an elongated arm support pivotally mounted to said top side of said body portion.

2. A mobile cart according to claim 1 wherein the dimensions of said top side are approximately 33 by 27 inches.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3515870 *Feb 3, 1967Jun 2, 1970Keleket CgrX-ray system for superimposing the image of a reference object and an x-ray image
US3555276 *Mar 11, 1968Jan 12, 1971Philips CorpX-ray diagnostic apparatus for urological examinations
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4485815 *Aug 30, 1982Dec 4, 1984Kurt AmplatzDevice and method for fluoroscope-monitored percutaneous puncture treatment
US4674107 *Jul 31, 1985Jun 16, 1987Picker International, Inc.Display for radiation imaging
US5159623 *Jun 17, 1991Oct 27, 1992Siemens AktiengesellschaftMedical apparatus with positioning system for a radiation transmitter
US5425069 *Nov 26, 1993Jun 13, 1995Lorad CorporationMobile X-ray apparatus
US5499284 *Mar 3, 1995Mar 12, 1996Thermotrex CorporationMobile X-ray apparatus
US5586162 *Jun 20, 1994Dec 17, 1996Micro Focus Imaging Corp.Portable X-ray machine
US5901200 *Jun 25, 1997May 4, 1999Siemens AktiengesellschaftX-ray examination apparatus convertible for mobile or stationary mounting
US6118845 *Jun 29, 1998Sep 12, 2000Surgical Navigation Technologies, Inc.System and methods for the reduction and elimination of image artifacts in the calibration of X-ray imagers
US6217214 *Nov 10, 1997Apr 17, 2001Hologic, Inc.X-ray bone densitometry apparatus
US6370224Jun 12, 2000Apr 9, 2002Sofamor Danek Group, Inc.System and methods for the reduction and elimination of image artifacts in the calibration of x-ray imagers
US6470207Mar 23, 1999Oct 22, 2002Surgical Navigation Technologies, Inc.Navigational guidance via computer-assisted fluoroscopic imaging
US6477400Aug 16, 1999Nov 5, 2002Sofamor Danek Holdings, Inc.Fluoroscopic image guided orthopaedic surgery system with intraoperative registration
US6535756Apr 7, 2000Mar 18, 2003Surgical Navigation Technologies, Inc.Trajectory storage apparatus and method for surgical navigation system
US6669365 *Mar 26, 2002Dec 30, 2003Shimadzu CorporationApparatus for X-ray fluoroscopy and radiography
US6725080Mar 1, 2001Apr 20, 2004Surgical Navigation Technologies, Inc.Multiple cannula image guided tool for image guided procedures
US6892090Aug 19, 2002May 10, 2005Surgical Navigation Technologies, Inc.Method and apparatus for virtual endoscopy
US6920347Jun 21, 2002Jul 19, 2005Surgical Navigation Technologies, Inc.Trajectory storage apparatus and method for surgical navigation systems
US6947786Feb 28, 2002Sep 20, 2005Surgical Navigation Technologies, Inc.Method and apparatus for perspective inversion
US6968224Sep 19, 2003Nov 22, 2005Surgical Navigation Technologies, Inc.Method of detecting organ matter shift in a patient
US6990368Apr 4, 2002Jan 24, 2006Surgical Navigation Technologies, Inc.Method and apparatus for virtual digital subtraction angiography
US7007699Nov 7, 2002Mar 7, 2006Surgical Navigation Technologies, Inc.Surgical sensor
US7085400Jun 14, 2000Aug 1, 2006Surgical Navigation Technologies, Inc.System and method for image based sensor calibration
US7130676Aug 29, 2002Oct 31, 2006Sofamor Danek Holdings, Inc.Fluoroscopic image guided orthopaedic surgery system with intraoperative registration
US7174202Dec 17, 2002Feb 6, 2007British TelecommunicationsMedical navigation apparatus
US7217276Oct 15, 2002May 15, 2007Surgical Navigational Technologies, Inc.Instrument guidance method and system for image guided surgery
US7313430Aug 28, 2003Dec 25, 2007Medtronic Navigation, Inc.Method and apparatus for performing stereotactic surgery
US7329046Sep 18, 2006Feb 12, 2008Carestream Health, Inc.Digital radiography imaging system with rotatable display and controls
US7366562Oct 17, 2003Apr 29, 2008Medtronic Navigation, Inc.Method and apparatus for surgical navigation
US7447296 *Dec 10, 2003Nov 4, 2008Koninklijke Philips Electronics N.V.Medical imaging device having means for rendering the detector orientation and the display orientation essentially equal
US7481578Sep 18, 2006Jan 27, 2009Cartstream Health, Inc.Digital radiography apparatus
US7542791Mar 5, 2004Jun 2, 2009Medtronic Navigation, Inc.Method and apparatus for preplanning a surgical procedure
US7567834May 3, 2004Jul 28, 2009Medtronic Navigation, Inc.Method and apparatus for implantation between two vertebral bodies
US7570791Aug 20, 2003Aug 4, 2009Medtronic Navigation, Inc.Method and apparatus for performing 2D to 3D registration
US7599730Nov 19, 2002Oct 6, 2009Medtronic Navigation, Inc.Navigation system for cardiac therapies
US7606613Sep 5, 2002Oct 20, 2009Medtronic Navigation, Inc.Navigational guidance via computer-assisted fluoroscopic imaging
US7630753Jul 25, 2005Dec 8, 2009Medtronic Navigation, Inc.Method and apparatus for perspective inversion
US7636595Oct 28, 2004Dec 22, 2009Medtronic Navigation, Inc.Method and apparatus for calibrating non-linear instruments
US7657300Mar 21, 2002Feb 2, 2010Medtronic Navigation, Inc.Registration of human anatomy integrated for electromagnetic localization
US7660623Jan 30, 2003Feb 9, 2010Medtronic Navigation, Inc.Six degree of freedom alignment display for medical procedures
US7697972Jul 14, 2003Apr 13, 2010Medtronic Navigation, Inc.Navigation system for cardiac therapies
US7751865Sep 15, 2004Jul 6, 2010Medtronic Navigation, Inc.Method and apparatus for surgical navigation
US7763035Sep 13, 2004Jul 27, 2010Medtronic Navigation, Inc.Image guided spinal surgery guide, system and method for use thereof
US7797032Sep 23, 2002Sep 14, 2010Medtronic Navigation, Inc.Method and system for navigating a catheter probe in the presence of field-influencing objects
US7818044Mar 25, 2008Oct 19, 2010Medtronic Navigation, Inc.Method and apparatus for surgical navigation
US7831082Jun 5, 2006Nov 9, 2010Medtronic Navigation, Inc.System and method for image based sensor calibration
US7835778Oct 16, 2003Nov 16, 2010Medtronic Navigation, Inc.Method and apparatus for surgical navigation of a multiple piece construct for implantation
US7835784Sep 21, 2005Nov 16, 2010Medtronic Navigation, Inc.Method and apparatus for positioning a reference frame
US7840253Sep 30, 2005Nov 23, 2010Medtronic Navigation, Inc.Method and apparatus for surgical navigation
US7853305May 13, 2005Dec 14, 2010Medtronic Navigation, Inc.Trajectory storage apparatus and method for surgical navigation systems
US7881770Mar 16, 2004Feb 1, 2011Medtronic Navigation, Inc.Multiple cannula image guided tool for image guided procedures
US7925328Dec 17, 2007Apr 12, 2011Medtronic Navigation, Inc.Method and apparatus for performing stereotactic surgery
US7953471Jul 27, 2009May 31, 2011Medtronic Navigation, Inc.Method and apparatus for implantation between two vertebral bodies
US7971341Mar 25, 2008Jul 5, 2011Medtronic Navigation, Inc.Method of forming an electromagnetic sensing coil in a medical instrument for a surgical navigation system
US7974677May 28, 2009Jul 5, 2011Medtronic Navigation, Inc.Method and apparatus for preplanning a surgical procedure
US7996064Oct 19, 2009Aug 9, 2011Medtronic Navigation, Inc.System and method for placing and determining an appropriately sized surgical implant
US7998062Jun 19, 2007Aug 16, 2011Superdimension, Ltd.Endoscope structures and techniques for navigating to a target in branched structure
US8046052Mar 24, 2010Oct 25, 2011Medtronic Navigation, Inc.Navigation system for cardiac therapies
US8057407Oct 11, 2005Nov 15, 2011Medtronic Navigation, Inc.Surgical sensor
US8060185Oct 5, 2009Nov 15, 2011Medtronic Navigation, Inc.Navigation system for cardiac therapies
US8074662Jul 31, 2006Dec 13, 2011Medtronic Navigation, Inc.Surgical communication and power system
US8105339Jul 21, 2010Jan 31, 2012Sofamor Danek Holdings, Inc.Image guided spinal surgery guide system and method for use thereof
US8112292Apr 21, 2006Feb 7, 2012Medtronic Navigation, Inc.Method and apparatus for optimizing a therapy
US8165658Sep 26, 2008Apr 24, 2012Medtronic, Inc.Method and apparatus for positioning a guide relative to a base
US8175681Dec 16, 2008May 8, 2012Medtronic Navigation Inc.Combination of electromagnetic and electropotential localization
US8200314Jan 22, 2007Jun 12, 2012British Telecommunications Public Limited CompanySurgical navigation
US8239001Jul 11, 2005Aug 7, 2012Medtronic Navigation, Inc.Method and apparatus for surgical navigation
US8271069Jul 1, 2010Sep 18, 2012Medtronic Navigation, Inc.Method and apparatus for surgical navigation
US8290572Sep 13, 2010Oct 16, 2012Medtronic Navigation, Inc.Method and system for navigating a catheter probe in the presence of field-influencing objects
US8320653Nov 8, 2010Nov 27, 2012Medtronic Navigation, Inc.System and method for image based sensor calibration
US8359730Jul 1, 2011Jan 29, 2013Medtronic Navigation, Inc.Method of forming an electromagnetic sensing coil in a medical instrument
US8401616Sep 23, 2011Mar 19, 2013Medtronic Navigation, Inc.Navigation system for cardiac therapies
US8452068Nov 2, 2011May 28, 2013Covidien LpHybrid registration method
US8467589Nov 2, 2011Jun 18, 2013Covidien LpHybrid registration method
US8467851Nov 15, 2010Jun 18, 2013Medtronic Navigation, Inc.Method and apparatus for positioning a reference frame
US8467853Nov 14, 2011Jun 18, 2013Medtronic Navigation, Inc.Navigation system for cardiac therapies
US8473032Jun 2, 2009Jun 25, 2013Superdimension, Ltd.Feature-based registration method
US8494613Jul 27, 2010Jul 23, 2013Medtronic, Inc.Combination localization system
US8494614Jul 27, 2010Jul 23, 2013Regents Of The University Of MinnesotaCombination localization system
US8548565Feb 1, 2010Oct 1, 2013Medtronic Navigation, Inc.Registration of human anatomy integrated for electromagnetic localization
US8549732Jul 1, 2011Oct 8, 2013Medtronic Navigation, Inc.Method of forming an electromagnetic sensing coil in a medical instrument
US8611984Apr 6, 2010Dec 17, 2013Covidien LpLocatable catheter
US8634897Dec 13, 2010Jan 21, 2014Medtronic Navigation, Inc.Trajectory storage apparatus and method for surgical navigation systems
US8644907Apr 29, 2010Feb 4, 2014Medtronic Navigaton, Inc.Method and apparatus for surgical navigation
US8660635Mar 8, 2007Feb 25, 2014Medtronic, Inc.Method and apparatus for optimizing a computer assisted surgical procedure
US8663088Dec 2, 2009Mar 4, 2014Covidien LpSystem of accessories for use with bronchoscopes
US8696548Jun 9, 2011Apr 15, 2014Covidien LpEndoscope structures and techniques for navigating to a target in branched structure
US8696685Mar 12, 2010Apr 15, 2014Covidien LpEndoscope structures and techniques for navigating to a target in branched structure
US8706185Nov 15, 2010Apr 22, 2014Medtronic Navigation, Inc.Method and apparatus for surgical navigation of a multiple piece construct for implantation
US8731641May 7, 2012May 20, 2014Medtronic Navigation, Inc.Combination of electromagnetic and electropotential localization
US8764725Nov 14, 2008Jul 1, 2014Covidien LpDirectional anchoring mechanism, method and applications thereof
US8768437Oct 25, 2006Jul 1, 2014Sofamor Danek Holdings, Inc.Fluoroscopic image guided surgery system with intraoperative registration
USRE39133Apr 24, 2003Jun 13, 2006Surgical Navigation Technologies, Inc.Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
USRE40852Jan 24, 2000Jul 14, 2009Medtronic Navigation, Inc.Method and system for navigating a catheter probe
USRE41066Jan 14, 1999Dec 29, 2009Metronic Navigation, Inc.Method and system for navigating a catheter probe
USRE42194Jun 12, 2006Mar 1, 2011Medtronic Navigation, Inc.Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
USRE42226Jun 12, 2006Mar 15, 2011Medtronic Navigation, Inc.Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
USRE43328Jan 31, 2002Apr 24, 2012Medtronic Navigation, IncImage guided awl/tap/screwdriver
USRE43750Jul 13, 2009Oct 16, 2012Medtronic Navigation, Inc.Method for navigating a catheter probe
USRE43952Oct 5, 1990Jan 29, 2013Medtronic Navigation, Inc.Interactive system for local intervention inside a non-homogeneous structure
USRE44305Feb 28, 2011Jun 18, 2013Medtronic Navigation, Inc.Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
WO2008036203A2Sep 14, 2007Mar 27, 2008Carestream Health IncRadiography apparatus with multiple work zones
Classifications
U.S. Classification378/189, 378/196, 378/195, 378/198
International ClassificationA61N1/05, A61B6/00
Cooperative ClassificationA61B6/503, A61B6/4405, A61N1/056
European ClassificationA61B6/44B, A61N1/05N
Legal Events
DateCodeEventDescription
Aug 29, 1988ASAssignment
Owner name: ELSCINT IMAGING, INC.
Owner name: ELSCINT LIMITED
Owner name: ELSCINT, INC.
Free format text: ASSIGNORS DO HEREBY QUITCLAIM, SELL, ASSIGN AND TRANSFER THEIR ENTIRE RIGHTS, TITLE AND INTEREST THEY MAY HAVE IN SAID INVENTION TO ASSIGNEES;ASSIGNORS:XONIC, INC.;XONICS MEDICAL SYSTMES, INC.;REEL/FRAME:005029/0003
Effective date: 19880718
Nov 4, 1983ASAssignment
Owner name: FIRST WISCONSIN FINANCIAL CORPORATION
Free format text: SECURITY INTEREST;ASSIGNOR:XONICS, INC.;REEL/FRAME:004190/0962
Effective date: 19831020