With Inflatable Balloon Patents (Class 600/116)
  • Patent number: 7426409
    Abstract: Methods and devices are disclosed for detecting vulnerable atherosclerotic plaque, or plaque at risk of reducing blood flow in a vessel, by identifying a region of elevated temperature along a living vessel wall. The disclosure that human atherosclerotic plaque with measurable temperature heterogeneity has the morphological characteristics of plaque that is likely to ulcerate provides a new and sensitive technique for detecting and treating these dangerous plaques before myocardial infarction and its consequences occur. The disclosed methods are advantageous over conventional plaque detection techniques because they are capable of differentiating between those plaques that are at great risk of rupture, fissure, or ulceration, and consequent thrombosis and occlusion of the artery, and those that are not presently at risk. Infrared heat-sensing catheters useful for identifying potentially fatal arterial plaques in patients with disease of the coronary or other arteries are also described.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: September 16, 2008
    Assignee: Board of Regents, The University of Texas System
    Inventors: S. Ward Casscells, III, James T. Willerson, Morteza Naghavi, Bujin Guo
  • Publication number: 20080140099
    Abstract: Devices and methods for transgastric surgery are provided. In one aspect, a surgical device is provided that includes an elongate member having a proximal end, a distal end, and an inner lumen extending through at least a portion thereof that is adapted to receive a fluid flow therethrough. A selectively expandable member is coupled to the distal end of the elongate member and is adapted to receive fluid from the elongate member. A mesh is disposed around at least a portion of the expandable member. The mesh has a pre-shaped configuration, and at least a portion of the mesh is adapted to be operatively positioned to occlude a portion of a hollow organ.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Applicant: ETHICON ENDO-SURGERY, INC.
    Inventors: Ragae Ghabrial, Sean P. Conlon
  • Publication number: 20080132757
    Abstract: A system and method from minimally invasive lung surgery employ a bronchoscope with a multi-channel catheter disposed in a channel of the bronchoscope. A transmitting antenna disposed at a distal end of the multi-channel catheter allows the distal end to be tracked in a tracking image during a surgical procedure.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Nora T. Tgavalekos
  • Publication number: 20080091067
    Abstract: The present invention is directed towards a multi-lumen catheter with an expandable device, such as a balloon, incorporated into its surface. The multi-lumen catheter also has an opening in its shaft that allows an imaging instrument to exit the shaft and view the expandable device built into its surface. The present invention also covers an endoscopic surgical method utilizing the multi-lumen catheter.
    Type: Application
    Filed: October 16, 2006
    Publication date: April 17, 2008
    Inventor: Mike Dollar
  • Publication number: 20080051627
    Abstract: The present disclosure provides a method and system to facilitate endoscopic insertion of a balloon into tissues, such as submucosal tissues, and optional resection of tissues elevated by the balloon when inflated. The system includes an endoscope with a delivery system for a detachable balloon having a seal. The balloon can be inserted under the tissue, such as a submucosal insertion, and inflated. The balloon can then be untethered from the delivery system and deployed submucosally while the endoscope is manipulated around the affected area and the affected tissue knife resected. The endoscope can be retracted from the area. The balloon can be made of biodegradable material that can dissolve or be absorbed over a period of time. The system and method can be applied to other areas and medical procedures that require insertion of a balloon for a period of time.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 28, 2008
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventor: Gottumukkala RAJU
  • Publication number: 20080039854
    Abstract: An apparatus and methods for delivery of reinforcing materials to a weakened or fractured bone is disclosed. An apparatus for delivering a reinforcing mixture to a bone including a tube having a proximal end, a distal end, and a longitudinal axis therebetween, wherein the tube has at least one inner lumen capable of allowing a bone reinforcing mixture to pass therethrough; a balloon engaging the tube wherein the balloon expands from a substantially deflated state to a substantially inflated state upon the bone reinforcing mixture entering the balloon; and at least one light guide extending through the tube into the balloon to guide a light into the balloon.
    Type: Application
    Filed: April 26, 2007
    Publication date: February 14, 2008
    Inventor: Robert A. Rabiner
  • Patent number: 7314475
    Abstract: The present invention provides balloon dissection apparatus and methods of use in which an elongate balloon is utilized to dissect along a region that follows a naturally existing path alongside a vessel or structure, such as an artery, a vein, a lymphatic vessel, the traches, the esophagus, or even a nerve bundle.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: January 1, 2008
    Assignee: General Surgical Innovations, Inc.
    Inventors: Thomas J. Fogarty, George D. Hermann, Jan M. Echeverry, Kenneth H. Mollenauer
  • Publication number: 20070270645
    Abstract: The present invention provides an endoscope comprising: an insertion unit which is to be inserted into a body; and a pipeline provided inside the insertion unit for supplying a fluid to a balloon mounted on an outer peripheral surface of the insertion unit, wherein the pipeline has a plurality of openings in an axial direction of the insertion unit on the outer peripheral surface of the insertion unit. Therefore, the endoscope of the present invention can easily fix a balloon and keep airtightness after the fixation, and can raise a degree of freedom of a mounting location of the balloon.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 22, 2007
    Inventor: Toshiyuki Ikeda
  • Publication number: 20070244361
    Abstract: The present invention provides a balloon unit for an endoscope apparatus comprising: a balloon for an endoscope apparatus having an opening formed in a cylindrical shape in which an insert part of an endoscope or an insert supporter having the insert part inserted therein is inserted and fixed; and a cylinder body having an inner diameter larger than an outer diameter of the insert part or the insert supporter; wherein the opening of the balloon is fitted over and fixed to the cylinder body to form a unit and the unit is attached to the insert part or the insert supporter or detached from the insert part or the insert supporter.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 18, 2007
    Inventors: Toshiyuki Ikeda, Syuuji Komi, Isao Watanabe
  • Publication number: 20070244360
    Abstract: The present invention provides an endoscope comprising: an insert portion having a bending portion for bending operation and a flexible soft portion connected to the proximal end of the bending portion; an inflatable/deflatable balloon attached on the proximal side from the bending portion; and a supplying/sucking opening provided in the outer surface of a ring that connects the bending portion to the soft portion, the supplying/sucking opening supplying and sucking fluid to and from the balloon.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 18, 2007
    Inventor: Toshiyuki Ikeda
  • Publication number: 20070232853
    Abstract: The present invention includes a first balloon member having a first hollow portion that allows an insertion portion of the endoscope to pass therethrough; a first transmission member that transmits an advance/retreat action performed by an operator to the first balloon member; a second balloon member having a second hollow portion that allows the insertion portion of the endoscope to pass therethrough; a second transmission member that transmits an advance/retreat action performed by an operator to the second balloon member; and a control portion that controls supply and exhaust of fluid to and from the inside of the first balloon member and the second balloon member to expand or contract the first balloon member and the second balloon member.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Applicant: Olympus Medical Systems Corp.
    Inventor: Koji Yamaya
  • Publication number: 20070191678
    Abstract: A balloon control apparatus includes a balloon, a flow rate adjustment section, a setting section and a control section. The balloon is attached to an insertion section of an endoscope and/or an insertion aid instrument for guiding insertion of the insertion section of the endoscope. The flow rate adjustment section adjusts an air supply flow rate to the balloon and/or an exhaust flow rate from the balloon. The setting section sets the air supply flow rate and/or the exhaust flow rate. The control section controls the flow rate adjustment section so that the air supply flow rate to the balloon and/or the exhaust flow rate from the balloon become the air supply flow rate and/or the exhaust flow rate set by the setting section.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 16, 2007
    Inventor: Tadashi Sekiguchi
  • Patent number: 7186214
    Abstract: An anatomic space of the body, particularly the pericardial space, is accessed in a minimally invasive manner from a skin incision by an access instrument to facilitate visualization and introduction of devices or drugs or other materials, performance of medical and surgical procedures, and introducing and fixating a cardiac lead electrode to the heart. An elongated access instrument body preferentially bends in one direction and resists bending in a transverse direction, whereby the access instrument body distal end can be directed through a path around body structures to the anatomic site by manipulation of the access instrument body proximal end portion. A distal header formed at the access instrument body distal end extends outward of the access instrument body in the transverse direction and supports an inflatable balloon surrounding a working lumen exit port that is directed toward an anatomic surface when the balloon is inflated by inflation media introduced through an inflation lumen.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: March 6, 2007
    Assignee: Medtronic, Inc.
    Inventor: Gregory O. Ness
  • Patent number: 6988986
    Abstract: An imaging system comprising an imaging device assembled on a carrier tube, and a first outwardly expandable element and a second outwardly expandable element mounted on the carrier tube, wherein the second expandable element is expandable both radially and axially, the imaging system comprising a mode of operation, wherein during expansion of the second expandable element, obstruction of the radial expansion of the second expandable element causes the axial expansion of the second expandable element to propel the carrier tube and the imaging device axially.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: January 24, 2006
    Assignee: G. I. View
    Inventor: Yosef Gross
  • Patent number: 6979290
    Abstract: An apparatus for locating morphological features within a body cavity includes a catheter including proximal and distal ends, a transparent balloon carried on the distal end, and an optical imaging assembly carried on the distal end for imaging through the balloon. The balloon includes a channel extending therethrough to a lumen extending through the catheter. A guidewire or other localization member is received in the lumen that is extendabe through the channel. During use, the catheter is inserted into a right atrium of a heart, and the balloon is expanded and placed against the wall of the heart to locate the coronary sinus. Sufficient force is applied to clear blood between the surface and the wall and clear the field of view of the imaging assembly. The catheter is manipulated to locate the coronary sinus, whereupon the localization member is advanced into the coronary sinus.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: December 27, 2005
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Nicholas J. Mourlas, Christian Scott Eversull, Stephen Arie Leeflang, Asha Shrinivas Nayak, David John Miller
  • Patent number: 6962564
    Abstract: The present invention includes systems and methods for decreasing the pain and discomfort commonly associated with endoscopic procedures, where such procedures may be performed with lower dosage levels of sedative and analgesic drugs. The invention includes use of an anesthetic collar coupled to an endoscope with a flexible shaft. The anesthetic collar allows lubricants, local anesthetics, dyes, and/or other desirable fluids to be passed through the existing lumen of the flexible shaft into an annulus, where the fluid may be distributed through expulsion pores into the gastrointestinal tract.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: November 8, 2005
    Inventor: Randall S. Hickle
  • Patent number: 6953431
    Abstract: The dilation balloon of the subject invention preferably comprises a balloon portion mounted about a shaft that, when inflated, produces a configuration comprising a tapered distal end and a proximal end or butt that is substantially flat (preferably truncated) and is adapted to generally conform with the outer contours of an endoscope through which it is introduced when the balloon is pulled back against the endoscope face. The close engagement of the subject balloon catheter and endoscope, when forming a balloon-scope train, enables the scope to more readily navigate strictures and tortuous body lumen, as well as allows the balloon to act as a lens for viewing anatomical structure within the body lumen, such as tumors, strictures, and the inner luminal wall surface itself.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: October 11, 2005
    Assignee: University of South Florida
    Inventor: James S. Barthel
  • Patent number: 6918391
    Abstract: A multi lumen endotracheal tube having a balloon cuff to seal a patient's trachea during intubation. The ET tube having a main lumen for the exchange of respiratory and medicinal gases consequent to a medical procedure, a secondary lumen for inflation of the balloon cuff, and a tertiary lumen for transmission of sound waves via air medium contained therein, permitting ausculatory monitoring of a patient's breath sounds during intubation and subsequent monitoring of cardiac and respiratory activity after sealing of the ET tube. The ET tube is particularly a adapted for utilization by an anesthetist by including temperature sensor to permit remote monitoring of body core temperature and body cavity ausculation of cardiac and respiratory activity.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: July 19, 2005
    Inventor: Johnny V. Moore
  • Patent number: 6899674
    Abstract: The present invention relates to an endoscope shaft comprising a movable distal end portion which is bendable by means of an operating device, the distal end portion having at least one decentralized hose member extending along the distal end portion, said hose member being integrally formed of a plurality of directly superimposed expansion bellows and forming a continuous pressure chamber so as to expand in the longitudinal direction when pressure is applied.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: May 31, 2005
    Assignee: STM Medizintechnik Starnberg GmbH
    Inventors: Thomas Viebach, Fritz Pauker
  • Patent number: 6892438
    Abstract: A method of producing a bio-probe that begins with the step of providing a tapering core of substantially rigid material. The core is then coated with dielectric material and this dielectric material is coated with a first layer of conductive material. The conductive material is then divided into longitudinal traces, extending from the base into proximity to said tip. The conductive material is then coated with a second layer of dielectric material. Finally, portions of the second layer of dielectric material are removed to form apertures to the conductive material, thereby forming electrodes.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: May 17, 2005
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Norman M. Hill, Andreas N. Hadjicostis, John W. Swanson
  • Publication number: 20040236412
    Abstract: An improved method and devices for preventing restenosis are provided. The method may include delivering a stent configured to contain a stenosis to a body vessel. The method may also include using atherectomy at the site prior to stent delivery. In one embodiment, the stent has a proximal end, a distal end, and a center portion arranged such that the diameters of the proximal and distal ends are greater than the diameter of the center portion. In one embodiment, the atherectomy device includes a housing to prevent injury to the unaffected areas of the body vessels but the cutter is extendible beyond the housing. In one embodiment, the stent may be impregnated with at least one drug after stent deployment.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 25, 2004
    Inventors: Balbir S. Brar, Harvinder Sahota
  • Publication number: 20040204651
    Abstract: Balloon probes, adapted for use in endoscopy and other medical procedures, are useful to obtain spectroscopic information reflected or emitted from a tissue of interest in the infrared spectral region. The information collected by the probe is useful in the diagnosis and treatment of disease. The invention also relates to methods utilizing these probes to analyze a surface of interest, in a minimally invasive manner, in connection with the diagnosis and treatment of disease.
    Type: Application
    Filed: January 9, 2004
    Publication date: October 14, 2004
    Inventors: Jenny E. Freeman, Charles R. Lambert, Michael I. Hopmeier
  • Publication number: 20040199050
    Abstract: A catheter system is provided that permits easy cannulation and radiological examination of the biliary and pancreatic ducts during an Endoscopic Retrograde Cholangiopancreatograhy (ERCP) procedure. The system of biliary catheters provides for a method of gaining access to the biliary tree, particularly when the contralateral wall or septum of the biliary tree interferes with access to the biliary tree. This anatomical interference is remedied using a pulling biliary catheter that withdraws the papilla of Vater away from the contralateral wall or septum by pulling proximally upon a chute expanded within the papilla of Vater. The enlarged opening then permits additional medical devices to be advanced through the pulling biliary catheter into the desired duct requiring the ERCP procedure.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 7, 2004
    Applicant: SciMed Life Systems, Inc.
    Inventor: Kevin Richardson
  • Patent number: 6764441
    Abstract: Expandable actuators surround a central conduit. Each actuator comprises a bladder that, when fluid is introduced, expands laterally while contracting longitudinally. A restorative spring can be placed inside a bladder and between the two ends to restore the actuator to its original shape as fluid is withdrawn. Multiple actuators can be placed in series to successively inflate and deflate and generate a peristaltic motion. One or more Shape Memory Alloy (SMA) springs can be affixed to one or more restorative springs to cause bending motion.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: July 20, 2004
    Assignee: Case Western Reserve University
    Inventors: Hillel J. Chiel, Roger D. Quinn, Randall D. Beer, Elizabeth D. Mangan
  • Publication number: 20040102681
    Abstract: An imaging system comprising an imaging device assembled on a carrier tube, and a first outwardly expandable element and a second outwardly expandable element mounted on the carrier tube, wherein the second expandable element is expandable both radially and axially, the imaging system comprising a mode of operation, wherein during expansion of the second expandable element, obstruction of the radial expansion of the second expandable element causes the axial expansion of the second expandable element to propel the carrier tube and the imaging device axially.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 27, 2004
    Inventor: Yosef Gross
  • Patent number: 6740082
    Abstract: Instruments for thermally-mediated treatment of a patient's lower esophageal sphincter (LES) to induce an injury healing response to thereby populate the extracellular compartment of walls of the LES with collagen matrices to altere the biomechanics of the LES to provide an increased intra-esophageal pressure for preventing acid reflux. A preferred embodiment is a bougie-type device for trans-esophageal introduction that carries conductive electrodes for delivering Rf energy to walls of the LES (i) to induce the injury healing response or (ii) to “model” collagenous tissues of the LES by shrinking collagen fibers therein. Typically, an Rf source is connected to at least one conductive electrode that may be operated in a mono-polar or bi-polar fashion. A sensor array of individual sensors is provided in the working end.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: May 25, 2004
    Inventor: John H. Shadduck
  • Patent number: 6741884
    Abstract: Balloon probes, adapted for use in endoscopy and other medical procedures, are useful to obtain spectroscopic information reflected or emitted from a tissue of interest in the infrared spectral region. The information collected by the probe is useful in the diagnosis and treatment of disease. The invention also relates to methods utilizing these probes to analyze a surface of interest, in a minimally invasive manner, in connection with the diagnosis and treatment of disease.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 25, 2004
    Assignee: HyperMed, Inc.
    Inventors: Jenny E. Freeman, Charles R. Lambert, Michael J. Hopmeier
  • Publication number: 20040097788
    Abstract: An apparatus for locating morphological features within a body cavity includes a catheter including proximal and distal ends, a transparent balloon carried on the distal end, and an optical imaging assembly carried on the distal end for imaging through the balloon. The balloon includes a channel extending therethrough to a lumen extending through the catheter. A guidewire or other localization member is received in the lumen that is extendabe through the channel. During use, the catheter is inserted into a right atrium of a heart, and the balloon is expanded and placed against the wall of the heart to locate the coronary sinus. Sufficient force is applied to clear blood between the surface and the wall and clear the field of view of the imaging assembly. The catheter is manipulated to locate the coronary sinus, whereupon the localization member is advanced into the coronary sinus.
    Type: Application
    Filed: May 29, 2003
    Publication date: May 20, 2004
    Inventors: Nicholas J. Mourlas, Christian Scott Eversull, Stephen Arie Leeflang, Asha Shrinivas Nayak, David John Miller
  • Publication number: 20040015052
    Abstract: The dilation balloon of the subject invention preferably comprises a balloon portion mounted about a shaft that, when inflated, produces a configuration comprising a tapered distal end and a proximal end or butt that is substantially flat (preferably truncated) and is adapted to generally conform with the outer contours of an endoscope through which it is introduced when the balloon is pulled back against the endoscope face. The close engagement of the subject balloon catheter and endoscope, when forming a balloon-scope train, enables the scope to more readily navigate strictures and tortuous body lumen, as well as allows the balloon to act as a lens for viewing anatomical structure within the body lumen, such as tumors, strictures, and the inner luminal wall surface itself.
    Type: Application
    Filed: April 4, 2003
    Publication date: January 22, 2004
    Inventor: James S. Barthel
  • Patent number: 6659941
    Abstract: A system for visually monitoring the position of a fetal probe in relation to a fetus includes a housing having a longitudinal axis, a first side and a second side, wherein the first and second sides are on substantially opposite sides of the longitudinal axis. An optical imaging assembly is positioned on the housing to visualize along the first side, and a sensor assembly and a spacing mechanism are positioned on a first side of the housing. The spacing mechanism creates a space between the optical imaging assembly and the fetus so as to provide a wide field of view for the optical imaging assembly.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: December 9, 2003
    Assignee: Mallinckrodt, Inc.
    Inventors: Bryan Weber, John Walsh
  • Patent number: 6629924
    Abstract: An enhanced endotracheal tube utilizing a fiber optic bundle positioned in its wall section to transmit light and a reflectively coated bore to transmit images is disclosed. Additional passages formed in the wall of the endotracheal tube are adapted to receive a stylette and to act as an air passage for inflating an inflatable cuff formed on the inner end of the endotracheal tube. The light transmitted through the fiber optic bundle aids in illuminating the patient's laryngeal area and the image is reflected along the reflectively coated bore to aid the physician in intubating the patient. Alternative embodiments using a bore with a sleeve having a different refractive index from that of the tube material and an enhanced endotracheal tube for use with children are shown.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: October 7, 2003
    Inventor: Jayson D. Aydelotte
  • Publication number: 20030158464
    Abstract: Devices for enhancing minimally invasive cardiac surgery include a visualization device including an inflatable balloon at or near the distal end. Some visualization devices also include one or more lumens for allowing the introduction of one or more devices to a surgical site through the visualization device. Systems of the invention involve a visualization device which has at least one lumen for allowing introduction of an ablation device and/or other devices. A visualization device with an inflatable balloon may be positioned to create a space between a heart and pericardium when the balloon is inflated.
    Type: Application
    Filed: December 4, 2002
    Publication date: August 21, 2003
    Applicant: Estech, Inc. (Endoscopic Technologies, Inc.)
    Inventor: Arthur A. Bertolero
  • Patent number: 6585639
    Abstract: Apparatus, methods, and kits, are provided for use in combination with a conventional bronchoscope or other lung viewing scope. In particular, sheaths having an inflatable cuff at their distal end are provided to receive a viewing scope through a lumen thereof. The sheaths thus provide an inflatable cuff on a viewing scope assembly so that the scope can be used in procedures which require selective isolation of regions of a patient's lungs. In particular embodiments, the sheaths may include stop elements for properly positioning a viewing scope therein, pressure transducers for providing accurate lung pressure information during procedures, and the like. Methods for using and forming sheaths having inflatable cuffs are also described.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: July 1, 2003
    Assignee: Pulmonx
    Inventors: Robert Kotmel, Hiep Nguyen
  • Patent number: 6582359
    Abstract: An endoscope apparatus has a side view endoscope 10 for side viewing an object in a radial direction of a distal end constitutional portion 14 and a balloon catheter 40. With an insert portion 13 of a side view endoscope 10 inserted in an insert tube 41 of the balloon catheter 40, the balloon catheter 40 is inserted into a blood vessel B. The insert tube 41 is provided at its distal end with a transparent balloon 42. This balloon 42 encloses the distal end constitutional portion 14. By feeding air (fluid) to this balloon 42, the balloon 42 is expanded so as to be urged against an inside wall of the blood vessel B. This causes the blood to be discharged between the inside wall of the blood vessel B and the balloon 42, thus enabling to observe the inside wall of the blood vessel B through the side view endoscope 10.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: June 24, 2003
    Assignee: Machida Endoscope Co., Ltd.
    Inventors: Yuichi Komachi, Katsuo Aizawa, Shin Ishimaru, Tsuneyuki Nagae, Atsushi Utsumi
  • Patent number: 6577891
    Abstract: A device for the optical spectroscopic examination of interior surfaces (2, 2′) of a body, e.g. of blood vessels (1), comprising an optical spectrometer and an endoscope (3) with a light guide for illuminating the surfaces, wherein at the proximal end of the light guide it is supplied with light and at the distal of the light guide the light can be launched to the surfaces to be examined, wherein at the distal end of this endoscope there is provided a device for receiving the light reflected by the surfaces to be examined, is characterized in that the distal end of the light guide is arranged within an inflatable balloon (4) with an elastic exterior, and that the light decoupled from the light guide and the light reflected by the surfaces to be examined to the receiving device penetrates in each case the exterior of the balloon. In this way, the light launched by the light guide and also the light directed to the surface to be examined and the light scattered by them, if e.g.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: June 10, 2003
    Assignee: Bruker Optik GmbH
    Inventors: Werner Jaross, Matthias Boese, Arno Simon
  • Publication number: 20030083547
    Abstract: Methods and apparatus for inhibiting longitudinal expansion of a body portion of an endoscopic sheath during inflation of an inflatable member are disclosed. In one embodiment, a sheath assembly includes a body portion adapted to encapsulate a distal end of an insertion tube, and an inflatable member coupled to the body portion and adapted to be inflated radially outwardly from the body portion. The sheath assembly further includes an expansion-inhibiting mechanism coupled to at least one of the inflatable member and the body portion. The expansion-inhibiting mechanism advantageously inhibits a longitudinal expansion of the body portion during inflation of the inflatable member. The expansion-inhibiting mechanism may assume a variety of embodiments, including, for example, a non-compliant member, a longitudinally-stretched portion, a reinforcing spring member, a pressure relief device, or a suitable detent mechanism.
    Type: Application
    Filed: December 5, 2002
    Publication date: May 1, 2003
    Inventors: Bruce Hamilton, Mark S. Landman, Steve Martone, Timothy J. Mulhern
  • Publication number: 20020198440
    Abstract: A percutaneous endoscopic gastrostomy device comprises a removable, dilating tip. The tip is located at the distal end of the device and provides for tissue dilation upon entry of the device into the body of a patient. The tip is lubricious and biodegradable. The tip is removable by dislodging it from the end of the device following placement of the device in the patient. The tip is usually dislodged by action of a physician to dislodge the tip, however it may be dissolved by application of a biocompatible solvent or through digestion. Following removal of the tip from the device, the tip is dissolved naturally by digestion.
    Type: Application
    Filed: June 20, 2001
    Publication date: December 26, 2002
    Inventor: Todd Snow
  • Publication number: 20020193788
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Application
    Filed: August 16, 2002
    Publication date: December 19, 2002
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Publication number: 20020193660
    Abstract: Systems and methods for visually monitoring the position of a fetal probe in relation to a fetus. A probe includes an optical imaging assembly and a spacing mechanism which creates a space between the optical imaging assembly and the fetus so as to provide a wide field of view for the optical imaging assembly.
    Type: Application
    Filed: August 1, 2001
    Publication date: December 19, 2002
    Applicant: Mallinckrodt Inc.
    Inventors: Bryan Weber, John Walsh
  • Publication number: 20020188204
    Abstract: A fiber optic probe and a balloon catheter used in conjunction with optical imaging systems, in particular with systems which deliver and collect a single spatial mode beam, such as a single photon, a multiphoton, confocal imaging and ranging systems, such as fluorescence imaging systems.
    Type: Application
    Filed: June 7, 2001
    Publication date: December 12, 2002
    Inventors: Edward I. McNamara, Ron B. Lamport, Christopher L. Petersen, Joseph M. Schmitt
  • Patent number: 6485410
    Abstract: The hysteroscope port includes a cylindrical cannula dimensioned for insertion through a vagina to penetrate a cervix. A balloon element having a nonsmooth surface is positioned adjacent the distal end of the cannula for dilating the cervix and for maintaining the cervix in a dilated state. The balloon is inflatable between a narrowed insertion and withdrawal position and an expanded dilatation position. An introducer's distal portion is dimensioned for insertion through the cannula's lumen and is sufficiently long to extend beyond the cannula's distal end. The introducer's distal tip is tapered and smooth for ease of insertion. The introducer's proximal portion protrudes from the cannula's proximal opening for being grasped for insertion into and removal from the cannula.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: November 26, 2002
    Assignee: Synergyn Technologies, Inc.
    Inventor: Randall A. Loy
  • Patent number: 6461294
    Abstract: Apparatus and methods for attaching and forming enclosed inflatable members on an endoscope assembly with a disposable sheath are disclosed. In one embodiment, an apparatus includes a flexible and resilient cuff member that is positioned on the outer surface of the disposable sheath and sealably and fixedly bonded to the sheath cover material at the cuff edges to form an annular space capable of being inflated. The inflatable member formed thereby is inflated through a lumen internal to the sheath that has an opening into the interior annular space. In another embodiment, the annular space may be divided into separate inflatable lobes. In still another embodiment, the cuff member is a flexible and resilient member that is substantially toroidal in shape that is positioned on the outer surface of the sheath. In a further embodiment, the inflatable member is formed from an excess length of sheath cover material disposed on the disposable sheath.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: October 8, 2002
    Assignee: Vision Sciences, Inc.
    Inventors: Katsumi Oneda, Edward Paul Harhen
  • Publication number: 20020143237
    Abstract: Apparatus and methods for attaching and forming enclosed inflatable members on an endoscope assembly with a disposable sheath are disclosed. In one embodiment, an apparatus includes a flexible and resilient cuff member that is positioned on the outer surface of the disposable sheath and sealably and fixedly bonded to the sheath cover material at the cuff edges to form an annular space capable of being inflated. The inflatable member formed thereby is inflated through a lumen internal to the sheath that has an opening into the interior annular space. The inflatable member may be inflated to exert a longitudinal force on the insertion tube, thereby moving the endoscope assembly along a body passage. Alternately, a sheath may include a plurality of inflatable cuffs that may be inflated to create an isolated space therebetween within the body passage.
    Type: Application
    Filed: March 8, 2002
    Publication date: October 3, 2002
    Inventors: Katsumi Oneda, Edward Paul Harhen, Mark S. Landman
  • Publication number: 20020120182
    Abstract: An endoscopic catheter adapted for insertion into body cavities, comprising a distal catheter portion and an illumination device (40) which is adapted to illuminate an area around the distal catheter portion with electromagnetic radiation, and an image recording unit (60) which is adapted to record an image of the electromagnetic radiation reflected by the area around the distal catheter portion and pass it to the proximal end of the catheter (10), and an image reproduction unit (62) which is connected to the proximal end of the catheter (10) and adapted to reproduce an image of the recorded electromagnetic radiation, characterized in that the catheter (10) is adapted controllably for insertion into blood vessels, in particular blood vessels, and adapted to reproduce an image of the electromagnetic radiation reflected by the area around the distal catheter portion, with a wavelength for which blood has a high transparency.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 29, 2002
    Applicant: Biotronik Mess-und Therapiegeraete GmbH & Co. Ingeniuerbaero Berlin
    Inventors: Dirk Muessig, Max Schaldach, Max Schaldach
  • Publication number: 20020077593
    Abstract: Apparatus, systems, methods, and kits are provided for isolating a target lung segment and treating that segment, usually by drug delivery or lavage. The systems include at least a lobar or sub-lobar isolation catheter which is introduced beyond a second lung bifurcation (i.e., beyond the first bifurcation in a lobe of the lung) and which can occlude a bronchial passage at that point. An inner catheter is usually introduced through the isolation catheter and used in cooperation with the isolation catheter for delivering and/or removing drugs or washing liquids from the isolated lung region. Optionally, the inner catheter will also have an occluding member near its distal end for further isolation of a target region within the lung.
    Type: Application
    Filed: February 11, 2002
    Publication date: June 20, 2002
    Applicant: PULMONX
    Inventors: Rodney A. Perkins, Peter P. Soltesz, Robert Kotmel
  • Patent number: 6309345
    Abstract: A surgical instrument comprising a node rotatably mounted within a restraining structure at the distal end of a shaft. The node can be rotated allowing manipulation and orientation of a surgical tool extending from the node at the distal end of the shaft through control remote from the distal end of the shaft. Cameras may also be located at the distal end of the shaft allowing stereoscopic imaging to be conveyed to an operator.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: October 30, 2001
    Inventors: Paul Stelzer, Stuart Stelzer
  • Patent number: 6306081
    Abstract: A hood for an endoscope which is detachably mounted near a distal end portion of the endoscope. The hood has a balloon adapted to be expanded into a substantially cylindrical configuration by injecting a fluid into the balloon, and to be contracted by discharging the fluid out of the balloon. A visual field of the endoscope can be secured by expanding the balloon, and can be prevented from being shaded by contracting the balloon.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: October 23, 2001
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masahiro Ishikawa, Koichi Kawashima
  • Patent number: 6277065
    Abstract: An endoscope has an anchoring and positioning device, in the form of an inflatable balloon, at its distal end section. The distal end of the endoscope has a section length, a major peripheral part, and a minor peripheral part. The inflatable balloon, being shaped as a cradle, circumscribes the major peripheral part of the distal end section. A window section is located on the minor peripheral part. The balloon is capable of spacing the window section from a wall of a passage surrounding the endoscope, thereby providing a good view and sufficient working space for the operation of the endoscope. A catheter to flow a fluid in and out of the balloon is coupled to the balloon.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: August 21, 2001
    Assignee: Boston Scientific Corporation
    Inventor: Gary Donofrio
  • Patent number: 6277066
    Abstract: A directionally expandable standoff device for use with an imaging instrument is disclosed. The standoff device has an elastic sheath configured for placement over a probe of an imaging instrument and a substantially rigid cover configured for placement over the elastic sheath, the cover containing an opening exposing a portion of the elastic sheath. The standoff device allows controlled positioning of the tissue surface within the cavity of a patient's body during imaging analysis.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: August 21, 2001
    Assignee: CIVCO Medical Instruments Inc.
    Inventor: Terry Irwin
  • Patent number: 6258024
    Abstract: A probe for a speculum for use in examining the interior of a body cavity. The probe comprised an elongated tubular member (1) having a first and second end and an expandable sealing element (2) encircling said tubular member at or near the first end (3). A means for admission of a fluid (50) is provided to the interior of said sealing element to effect expansion thereof. A removable closure means is adapted to engage the second end (30). A means for admission of a fluid into the bore of said tubular member is also provided (32). The closure means provides a line of sight and extending there through and along the bore of the tubular member.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: July 10, 2001
    Assignee: S.S.H. Medical Limited
    Inventor: Clemens van Der Weegen